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LUA89-109 Vol#2
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L. ..,_,, Nelson N / ',.s. -it \ / „r. 4-,.. .,,y 11, '• / `k -4.0,;!RIMT;74.114-iedirlaqi , -4it Incorporated ," • fri...,.r , . %pa <,,, is ,,t,-1 ;to.3- , une PlannuiS :::.• lin lands.,ArcAllectm• ' .-14",*-- I, ...te ‘„ \----' •\';', •$.,-/ „1. il, \ ..`"%itz, VV-4,V1„„,L,A?roi 3# .i WH„, „ `.) 10 "-• ..:. • - ,,_.,,,.. ,._14kit—-00.,:r.,,,,,,,,,,o, ...4 ;IV '`Ni! Vt7',,t..,, 6 4r0"41Ntht. x A s .3. 01-, , , -041 1; r.,----- \ .. -..--t-v-„,,,:-..., OW - ,40:44w tt "--11): Okii ! BLACKRIVER EH LANDSCAPE P-1 POND s--,,t 407: ',,..-z--- -- , . .1. , „ -.4okt._ „:,,,,, .44,: ;,..,.:-.."-4=r-4'-'-,•.- 7.-;:,.-",t.., •4,.' I PLAN '---s---••‘••%fr•-:' -1WrtoW,'W----1--,t'S--•-"z1-'1-.---c,10,frWrir-7-4,0;00-, I ----- CORPORATE PARK - - s -- --°- -- '''"''w-5--;----.t-t5---------.!'--77-a5---*.:._-4. 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NODESCRIPTION DATE / A• / , 4.. 7z -- --_ „...---. \ \\,.. „•101,N11121,... .410,-. .- :/—, , , , // ...,,-71.....„.., s ,R�,./:,/, 7.• ( / FLOOD CONTROL \ \` i 4 l ' _\•, •. // Y''p PROPERTY PARCEL B•3 V .�:� S I .4.?i(f/ , , % The ✓Aj i, ��\ -- `i ' ;� r j '. .^o . ����ii Mitchell / j /'• / nl // I /��\ ORDNARY NfGII T / •% j^```j^``` ` r -/ i WATEAL.E \ ;: / 'ir�+�� \� 4iy' %► / /• Nelson j // \ �I( 3: a, ff' =";-rs�^' \c� ' Group /i j, el 1I I ) `'I ,j S'%', \ \` l. '• 'F*.C.;?> — Incorporated —�` `\\\\ �x ` \\ r\ '/� ��v "zee'° Sunk Wail,vrgeolF3122 / r--� -. bl)1 :-.1ar -_ • \-- ,i �\ \\ �e&, - //4' P-1 RETENTION POND G°°«'"°" .• ��!� R`Ga ;�]ar \� , BLACKRIVER LANDSCAPE �_;,�� L f ; � I '�° CORPORATE PARK (1 ` PLAN 0 rMYI■ RENTON WASI@RK H O \ %/' P': FOIST CITY DEVELOPMENTS CORP. O , ..or r.�.... ®^ X _________`v' :r. 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CAI&ENGNEERS&LAND SURVEYORS SEAL 1 - - . 2 t. ;!:1 BLACK R I VER T EC H NOLOGY PAR K Bi=tei"."'"-. ---40.--"'T ...,,.. '''''''''''' 44::::,0. ,•..,-••', . • -n-tAtt.Ft...Aserp....,-. s '' arrog PHASE 1 _ ....- - .. i •.\\\\�� fit::\ 1, \ ••-gi N. s.\\` \01.1..< \ , I -FA' -4atif ID i.. \s:'.� \\` \ s_ •\\• `\••\•MATCH LMJR '�4 \F;F 4, Jy,��� OA- ` .`\ ♦v�\•\\ N‘. \ \ \ \ • v,•.‘•,•.,4 s\,:,,; "\2\.\ \ \ \‘, ,,, \ \ N.4.„..,.,, \\V., ‘ \\ 117(-7 J% i/ N 1 2e'00'Et:r , Mat F// ;a i / nn m .4, ` SFr\\'\ \ \.. `�@ j / h ... •\\ 3 gl I 1 ,p ". \,,,..\\ \ N.i:\.\\N .. -, \\--9..\ Nt,1/4,,,, S',.‘ tilfi N. • � . a /• \ 0 @ ` q . . s� a \\.'\\ \ o \ j1 . \\ \ •� \\�.•,I / / /-"- �j\t, jb / ! - \ 9 ; `\ / o y4 9 M \ ` .__ - MATCH/ / o / ` Cf 4 ?' C \ i\ \\ --r_-�' : y, ' `\ o _ S' °T..\\ \ 44 \ \ .„, .. \v„.\ c''''44,V. (\ % , ,, f A ,, \ 4 :,`.\\,.‘, — '• \ \ . ?.., s-- -4/17IN ___ ‘\\\ ,. . ' 2\,\- \\%.,‘„;:.‘,.\\•,‘..s..:; , ,41-1/1/4' 7 __-\ \ sd; \ V..\\\ I \ \ 5 (7) r ,V, 4t0). 1 \'' t i ..... •,,,.' oik t ,, \ \ \s\k..:Ls..\\I`‘.\\::•.,:\.\.1‘,..,t‘r iris li \ , \rg ,,. \ , \\` `5 !Ai F,V \1/4 \ I` \@, . \ig" • gg --- \ \ \\ `,7 a ' \= i 1 \ 0. igr �/ / N / i \\j. \a / S12002W z- 'e __Nita_EB5 _ _ \ _ \ !!1 \.� �11 WM ril 1(( '\ IVI q' / So \\\\ \• wil , :11\> ,A, \ % ' t..„,. \,s J 1 `\\\ MATCH LPE ,' ' Y L':y:., _ \ —. } ` 1•r}l_— 7 \ 1 °gym €a F' s m @ K _ First City Developments Corp. , _ Blackriver Corporate Park 'I Z ga Wt ' ' Renton,Washington R 2 g -- .-.-._.-.-. 'may .F�..�..�.. .-.�- -.-.�`•-.-- 4, NACRES AVE.S.W. (PRIVATE Ex ` '�'`----`- i .. _- -'�- SIGN) ... .'.�'.:�'. CO 3``tt - \fir\`\ ,\, \`;`;� a IY Y• $• A I LOT 6 ' **� ` " F \` \'\' +C+ Ili _ LOT _ _ -4 J tea" '\ ... ..,`. . 3LEVEL _ s •y \ 9y o. a o • • E t .moNwonp \\\ \ \ \`` "\y 01 U PARKING STRUCTUR• 0 _.. � -- -I ` `,`• \\'\\9,q N I °'mot ��� :11JC.: LOT 6 II .1 <` "" \ \\�'\,\. O N 01 • IIIPNB5 it3 �""�'�' II LEGEND �'Y:r}f, :I \ AL , LOT 3 \\ '"\ SEATWG BENCH .0.., T Sr••• 21 III ♦S3' •\S.'\ BIKE RACK iI \ A. HORSESHOE CONIT••- -• SSTORY BIDE cv \ I \OJ. \ CZ i 65' •;•nii•.:: �m .apr - ♦ �'•T _ �-_� � \•'\\ 00 E%CERCISE STATION . 941T .... i� II = \ �� , `,po,\' •\ )`.� TRASH ENC�L ESUHE x105,000 S.F. ITTEI G '1 1 I\. /a \ '\'\\ • EMSTOIG \\1L s TO BLDG 0'v ,� ' ` J.. •m> .; \ `\ ti0• -_ •�ERCEiE STATION-:1 " $ .♦♦ �� , \\` , •,':..��., '� .R\\ $, m''''.y ice /b' \ ♦0 \ient �_\ . :::::0 \ \•\'\ Q, C �Daa. Iry !4_Y Corvi �` 00.%� .^�• / \ i\. © q `��,3STORY •\\ __ yy� �.a .wa HORSESHOE CON,T �' 1�\ //.� I`.. ) , \\ 5s,,,... - _ wmv N,P�a _•, z6TA00 SF. "O `` �e, a '''''c"""-.. 'L4yq 1Y'L �� :Biwa sioHr BtoG �•�. : `\\\ J\ �"� `���''s"i•\ ' .„,,'. • _B'EZ Lco• o•.m ! \ // Any 1 veciwoT� * - •\\� ti.• .>3'__ •NTi .DA'A \ W 1 \ I rep•,wi+a�:...a .00 p�=2T6T 31'I ' 61xY 0t'00'%� S♦ \\ \ , tl . v, 9C. aN ��, y,5 1 0. 66' i RPARIAN PRESERVE �� �f�'"'r'r,?sp�1\,.i \ J 1 39 'N' , \ K' pc�ouol.a 'coliovu \�• k r C..e CdiEENBELT PARCEL&1 / \ .. /s / % '\ pw..aoo '`` r/` 0 A ass 5� 7/47-.-1 i j ♦♦\, }1eOor TMe I ,,`fro ,e4 ei 6a p3\ .. A ��—ORDNARY HIGH `1\, / I 1 \\`1 `J N'\B._ /�5 / i I`o WATER LRIE--. I I1 ]00',4pR I/_ NI` Q -F\ `/ WZ\��` � NI1,1113 N DESCnIPTION DATE /� pP_-�yg•'�• ,I /,�/� \� :i// ,/ �..4N � Er, Hea•ts•NEW asD.Do 1,e A..wnrvcow.,lo-meo 4, \I I 1 1 O P J I Ai 51"a. S/ , HERON ROOKERY I // r �cewrw+ I I I¢ ` i7 / .n 4 ,, LOT i� .- 4 . Em it 11 'S,T \\ / ' k,•' N t% ,:: .. _ _ I I PROPOSED BUILDING WTFAl1.O £ 16 I� PflOPOSED BURDNG 'ilA '\� •o/'� p J ire"'• jli i I I NOT PART OF THIS PROJECT l 'x6T,ODO SF.�' ,8 D>av w / /• > ha 3 STORY BLDG. �•I ,••• n c ,...........4.Arse.d J• MO IRA s0 1♦, ��.. 7I 9 I. ` v\ y, H \ ♦IN IV �____ 84, E_ %ERFISESTATION!\ - `_ . jl fvnu uaaa S P-1 DETENTION POND �� '' � ♦ E„`2, �\��\ �` � � a I ^/_ T ; IF = 17 '*`I�- "E:�\\6"'' 6• - BLACKRIVER SITE PLAN — 1 _ T �' -2:150.26::- CORPORATE PARK FIN//I \ _ElISTNG T1a31 ENG SM'ALE N +: "� REHTON WASI@iGTON INST CRY OPMENTS CORP. \` � D�IErv• �_/ V --� I 1::::". SITE PLAN cl / tr UTl1Tv EASEMENT pp. T __ f�' JOB NO 85038 SHEET NO 6 DATE • SITE PLAN 11/501 1 DNEDK. A-2 VICINITY MAP TABULATION W10 N; SITE TO BE DEVELOPED :1,833,1TB SF. m0EN.• "Ctli�E"FJIDEIFT PAN,CEts x850,585 SF, 14. 9ME TOTAL.267T,TT3 SF. /43, )E037\\ UILDI Ni AREAuARKNOSTRUCLRDNGFOOTPm/ COVERAGE vTSx CO•Om �`�. PRK•�/- .. . 1111 • SITE cavenaeE :lax A' • . 9 SURFACE PARKNO W wo a STANDARDNS18 STALLS A��T�F MAIM/TENOLONGACRFS� COMPACT x813 STALLS(z31%) `V 'S • HAND ICAP 040 STALLS 0 lim ;' B VALLEY PARKMG STRUCTURE s370 STALLS la '^•,HOSPITA L TOTAL O2,7OT STALLS C N 1/200 Q SAG EFFICIENCY C) 0 PUMP Iii OpD��~ lL W ZDN. T _ S / SREI-_,, _ / -PROPERTY LNE B \/ 1 VVV��� % • j ``\; 3 I \ I 9 V�'" 1 PRIVATE•OA %TENSION OF NACHES AVENUE SW IFS - • / �� I `` � ��� • __- Avow.wet.Pbnrsg / I /A� /' r I PENDING OFFICE PARK('I I ior EXSTNG ROADWAY i�-- 6 �`\\,_/' . . AREA WfNOR t00 YEAR FLOOD PLAN �y,nercy �.w EMERGENCY ACCESS DRWE/ R—��'�om -_� Rt OETENDO"POND A E 9 A A 2+Cvtlnr' ORDINARY HAG"WATER, _\ a EXISTING OFFICE PARK A^C.E e J a++9 3..K. I S9ov0,,vAO .•;A1C,SRP'`, ;----- -- - LE---11----/ i 1 NO O ON DATE Q 'TE FLAN MIXDVP I0N-2 6 MONSTER ROAD SW OP ZONE , OP ZONE I vm.o • 2 SW OAKESDALL AVENUE 5 a VICINITY MAP ' 1/200. 'W I • BUILDING 0 9 RAW, PARKNGSTRUCTIIRE 5g BLACKRIVER I� I I FOREST I / f r RFMON WASfONGTO (1.h PROJECT DATA NAMES A"ENE SW Eg I CORPORATE PARK/ OR 1.11 ;F I AGE��_ — 10 FST CRY DEVELOPMENTS N P-1 DLIR POND o , -- EXISTING GRAD A eV frl% PROPOSED GRADE SITE SECTION A - `loi a 158. 1/50' Joe NO•E5058 SHEET No OF DDATE •10-4. AT N,GN. A-1 PROJECT DATA I I CHECK -��-- -- ----- 1r::�-_ -- --NM/ �%jz = k�11 ,I:,� \\�� �. TAN ��' . III► \ �:, \�\ \�9� NRq \• \ ./�q CO Nrii.414 tr. b11,501-40--ehaa-•-•010 .". jo jos ��It'1lllllnll 9 ' \` \ EL a Alt •1\ o 11i111i'(�; �i,`, ! �'® �' \ e \ e �. E ` `o I1 111 of t 1 + . I _ �,` N , lc_ , \„. I /,� ' �, - o � of . .,N..„_ 1A lit Il R t�• �° / '.� `,� �;c', ,, snELT��.». d > __ z rk to —, c .in• _ __ ,wr,::..--,4 •\ •• '... 0 co I�ito� Ira, _-Z:7i/„..„\o‘ii__ .44;i:.LL ..*Atrivr. \• . V `q_ ,1` r_,„ 1\_ / .-./..._.,_;,' � t.!...,.�` \ it' CO R v� 7 , �a I 1 / J\� • \� FG 22Q _- - ► 1 % 34 `l-� �� , �\` 09.**0 . � \ , -,�� / O' O • NY _-1 m. I / \,DL2 l ' I 00; RIPARIAN PRESERVE' yv • F ` i` �� , . -_-\ �+ \' - 'l / /- _•s toa i\ ( • I, • - GREENBELT PA EL B-1 f SSB / / r/ \,\.\\ )\ � , `/ 1 - / ' dli • � _ \\ -� �.. "`� ,„rkY,.,,.r.O-.rc3' •I K � � /(/ 4. / �/ ON 11; , / 1-� 1 ,'x\„ 1�•�, ��_ = `-.-- \\ ' ` _- -- / ' , ///'-'S6' \ / / � WERWE— I ` 300OHELIN•' D y , 1G WEI..9B- ` - m\ NO ] 41.u.re..naDATE/ -� ' AWN.( RAry� 1 A. 88 15'00'W 950.00---, ' ,';''' /I I • • r l'' ''''.411.%I. -21-- - —'' ‘ 14 -'\ /// I 40)2401- a 1-7- ', \ V.. ---___--7 L,-. - Gi%i • HERONS ROOKERY ��1/ y'/ r ' / /a 111%7 _ ^� n I C11 !\�\ x ;, it Q y � 'j2' \ / i 'yOUfFALL •'.��?" u / / 18 4 1 I �' U ar ' �' i ;: \\\. / r s , \�� 1 U\ c" >v l I it 1_ . ' c� 1 -;-. �,, l�J - V Ids 1 L c_F-1-1---- P-7 POND it "- o r-a -�;. \ • '� � ��NNI- �� - . 1 ✓ ~�� '!��� SCHEMATIC =; —�� —_ __ i CORPORATE PARK s r�,r,,•\ � '`�,���- � I.,,:�,.�� neNroN wAsreNoroN �: GRADING AND \\_�v__ � �oRMD�a�rACEt Nr ? I 11 II ' ! ,-.; ....YDEVEIOPIENisCORP. F a . M UTILITY PLAN SITE PLAN //fillii; 15'UTi.ITY EASEE�NT-- JOB 40.11--8 SNEET..OF I- +— DATEDRAWN '1a119a N,JAL C-1 SCHEMATIC GRADING& ILITY PLAN v50•mi c2ECG•RGG \,..,.. of '4 '°; i \ ` \\`X \ \\,\'\ \ •\ \ M1 VODO FLOOD v ` ` Ln �, CONTROLBLDG. I 1__-115&==. •:: \. ..MATCH LINE \ A ; \\\ ..T.I \\ I ?'rl ` \- \ `\\ \n9�\ \ \� \\ I I1l1 I' �� 9 \ •$ \\\\ • \�\ \ \,•`.`;� \, '• \\ \\‘‘ \ \\ N26 I 1� 9 ig �1;� 00\ \ , Y�,�\\. \\ ,\9y e�i\\ \ ••\�� \. i ‘ _..) // i`o , il 1 miry/ -\. \\\\,,,v \ ', ss \V‘ 1----___iii///,/ ' / / ) x I" 1‘ 'N.\''‘.s4 \ / // 1 st *4,\ ..,..,„‘,‘„e., \ , ,... airi, 1, , _ -- ` \ Tq \\\°u\•• ..‘ ,,,,, ir @ 1 '.. / t i/VP -'1., V ' '\s. \ \‘\ \ \--.;\ s• -..zc. \ sw ,�,( Gam' \ \' \ • • B Ili // ii ,/ —• '4� *' ,L. / e,,//s, illik * \•\ , MATCH LINE L` \ _ : 'Nu(0 Viagt bi . 1 \\\' ItrifiTi 'lel-:Ntri,..107‘ --- \ -,A\ ‘..., \ i \ ' \ '' : 1, §L . . / vs\ _1'umeiPAF ,------ ---___. ,. . ,...,.,A .<„, ,,,,,rigoasA ...\„...A\-\\ 1 \ '' '‘ \ ` .—,-\,/. '\ N\c ; '141111‘1' a _aa.,,, 1r' \ ,. - ,\\.\ \ ,,, , .. \ , , ,/ \v" 1 ,N, • \ \\ .-,,, \ ow -,„>: ,\' .- , \-\, ,. 344k Ne---- .1-0-4 \ ' . \+. \0 -i> ' ,,, ,' \\\ • -ko ,.2,‘,f,, :.411‘'. , '' . . . ‘Nrit\ , ", ‘ „.#11110%;:‘,11 ,.,,4,.:\.\\A, \\CIA.‘.0\1. \ 3,-P r\. \\1101111104" ,, , \ , \ , ,o,„. .-,....,, )(''' \' ''''' \*.' s. %,,,,, \- , ., w...,:„.--- - - \ \, ‘,.., ‘, 1.1. T,',\.''0 4 -'t -..0. H,I,,,-i,9._1, r \ / moo/ 'a `/,( c•"I.' 1 /I \ l ! N3 1/Ø//// \ g� / 1 vv .. \V A 8� ,•/�vv v c •v / i4' a� 1 i\ \,/ 1 mD �/ ape \ a v 1 Z -0> 'I/ �/ / / m9 ii �, . ,.\ R' .7\--% ‘' \ .. \ m (.� I lr 'F / '7 7 mr m /, ml ...„. ,11� \\\ \ \, qm< ), k g x 71 \\ /�// I I Yu)1 �'�.Gi v.i-�•�'O �''A' \ it \ Ir, xoaTx s` ` ` ,/ I 'oe. z • a,'" 1 1 1 1 ...\1\i, \'\_\ \ MATCH LINE _. I , 1 i n imm if In C n A-a- -I D el 1 ?^,E & First City Developments Corp. �� p 2 is a '', Blacknver Corporate Park NE z Z n m ? Renton,Washington ito gm Y L RI a 205'-0° 1, , 205'-0" , ._ a) 125'-0° 80'-0" 125'-0° 80'-0° —/_ •W 0 6$::..41-. Dryvit Panels Reflective Glass Mech.Screen Tinted Glass ti„ - win 1111 I I I i 1 I ui.7YIBBB V IIIIII NIMINi ■■■■■■■■■■■■■ I _■■U■■■■■■ NE■■■I•■■■E■ ■■1 ■■■■s■IUIG1■■■■■■■0■■■■■■■ o a) m 0 IIroMiliiiiiTh■■■■■■■■ ■■1 ■■■■■■r .■■.■■.■ ■■. ■■■� lill■■■r■■■■,�■■■■■■■- 4. d .L II{III —i;! i jji....u..■ . __ ■■ Its■► ■■■ ■■ ■i ■■■� I uIl\■■ mi■/o■■■■■■■ ins .. . . . —..... 0 ' 111111�airl■■■■■■■■■■iiii I i1 1 ■- ��■1 :ICI il I ■■1 I 71[1■■■■■■■0■■■■■■I y a ir. CO cc Dryvit Panels Main Entry I BLDG.24 SOUTHEAST ELEVATION BLDG.24 NORTHWEST ELEVATION 205'-0° , - 205'-0° Ifrh11 Arc.e hue and P.,4„D 80'-0" 125,0" , 80'-0° 125,0° e ZTr'rK�11 r'iz1 11 1 P--Bs9 i AP,ev'�� Se00ie WASH 01(20G}ar I Il111IIIII:LII I,I I I I I,I I i I III'I1�„�VY114q NO DESCRIPTION DATE R OVNNA�a.I_niT� II I I r I 1 I I I I I I I I ll■::■ - III I I I I I I I I I r m III "� I I I I I I I I I L l 11 11 III C ERNE_ . :i l; 1 I I'�I I I 1 I 1 11� II 1 1 1 1 I 1 I 1 �f Fr-Fr7 rI ' II 0 III -_I i y III III III\( I III III 10 ll� 1MI IIIIITII mil I � � III I I I T'�r - 11 ) 1 I 1I I BLDG.24 NORTHEAST ELEVATION BLDG.24 SOUTHWEST ELEVATION BLACKRIVER BLDG.24 ELEVATIONS �° CORPORATE PARK pIRFWST PNTON WASI050TON CITY DEVELOPNONTS CORP. neue� �". IB""”; BLDG.24 ELEVATIONS JOB NO,MOSS SHEET NO OF DATE DRAW 'b4e5 H• CS. — A-6 I1I76° 1 CHECK• va-0° Dryvit Panel Spandrel Glass - -Tinted Glass 111111IIIlU Y CU , ,f III 1 1 1 1 a a) I J I I I I I I v —i ,aa o° /_ al rll Illl �� 5 1 1 1 EL 00 I di O O U I I I I U E L o Secondary Entry —Main Entry tii > . 3 Level Parking Structure CD 'L ILn BLDG.22 WEST ELEVATION 0.Y/� 3 175-O V U 0 c • Mechanical Screen CO I' 1._ l l 111111 1111111 / 134'-O 1111111 0 fe rDc��,ero�Monn�, 0 OI IIIIII , 0 IeaN0. � . I I 1 1 _ Ee AA nBest eA As,P ettt I Stole w ca+D+ eY' • 3 Level Parking Structure Secondary Entry NO DESCRIPTION DATE A11-61,44 Ae .tI.W-n-+. BLDG.22 EAST ELEVATION Bldgs.21&23(Similar) /- 244•-0" 1 I. —"-1.111111i LIIIIIIE l 111111 1IIIIII 1 r_1 111 1 1O1 1 1111 � O Il llllj 111111 I O 111 1 j 1 11 I I rE BLACKRIVER ELEVATIONS BLDGS.21,22 CORPORATE PARK &23 RENTON WASICNGTON -- Secondary Entries nw vm FIRST CITY DEVELOPMENTS CORP r . BLDG.22 NORTH EAST ELEVATION w:p,;;o„1A_ BLDG.22 ELEVATIONS B NO•MOSS SHEET NO OF o :N••'20.606 A-5 11/16.1 1 CHECK . Y it //dal� .S' / .. 160'-0" • / 205•-0• li / A' /20•-0" / 55-0° 90'-0° 30•-0° / 65'-0° , 20•-0° / V/ L. A' al b r , —Dryvit Panels Mech.Screen Tinted GI ss— c a ;:,. Painted 0 Q 17 iy N 11 i ii i l l CQHifli1 � � � 1 i i t � illlli Q c Y 3 _11_1_1 -I I I I I I I I I I ��l I I I I 1 I I -1 CO s Secondary Entry- — Tinted Glass Main Entry 'L. CO el BLDG.18 SOUTHEAST ELEVATION Bldgs.19,&20(Similar) BLDG.18 NORTHEAST ELEVATION Bldgs.19,&20(Similar) / 205'-0• r / I 160-0• / w .•..eanPe.,..g 40-0° 150•0" /15•-0° / / 20•-0• / 100•0' / a0•-0• / / / earoe Purely nw mesh Y e A Bua A•A PeCcW." PnA.Wet S,Ie $gong.AAOS'OI(2CeM Cl NO DESCRIPTION DATE ',NB PUN fPPQJV L bi}Q8 IIIOIII IIII 1-'I HHHH -0 III I I I I I I I I IIIIIIIQ7iH) HH -III I I I I I I0 � ii �' iiiiiiJIIIIIIIIIIIIIIIIIIIIL1 , IIII I111111111Hill --1 ',lII BLDG.18 SOUTHWEST ELEVATION Bldgs.19,&20(Similar) BLDG.18 NORTHWEST ELEVATION Bldgs.19,&20(Similar) BLACKRIVER ELEVATIONS I °^m° CORPORATE PARK BUILDINGS RENTON Wa0es7GTON 18,19,&20 „ �, FIRST CITY DEVELOPMENTS CORP. ,,,,,,,,,,,,,,,..3.c.' SLDGS.18,19,&20 ELEVATIONS JOB N.S5050■SIM.ND. .0., 11116•1 1 CHECK. A-4 . ,.--- • Architcture and Planning f A Leason Pomeroy Northwest,Inc.,Royce A.Berg,A.I.A., 1127 Pine Street,Suite 300 Seattle,WA 98101 (206)583-8030 March 12, 1992 SA- 109-gg 4J.I_'.`r 1.1 Lenora Blauman Project Manager Planning '' `>c';' City of Renton 200 Mill Avenue S. Renton, WA 98055 Re: Blackriver Corporate Park, Shoreline Substantial Development Permits: Tract A, Phase VIII : SSM; SMP-109-89 Permit #1992-13072 Tract B, Phase VII: SSM; SMP-071-88 Permit #1992-13071 Dear Lenora: Per D.O. E. letters, 25 and 26 February 1992 additional information is noted: Item 1 .a: Mitigation for filing 0. 10 acres of emergent wetlands on Tract A and 0.04 acres of emergent wetlands on Tract B includes excavating of previously filled portions of the historic Black River channel to provide new expanded wetlands (See enclosed Wetland Mitigation & Enhancement Plan) . The excavated soils will be placed on the adjacent site for which Site Plan Approval has been granted by the City of Renton. Item 1 .b: The area in which the mitigation is to occur is classified URBAN per the Shoreline Management plan for Renton. See Detailed Work Plan in the Wetland Mitigation & Enhancement Plan for a discussion of the work to be performed. Item 2.a: Specific public access easements to the shoreline property owned by the City of Renton are shown on the enclosed exhibits for Tract A and Tract B. Existing curb cuts are utilized where possible to facilitate easy access. Locations and size are pursuant to direction provided by the City of Renton (3 copies) . Item 3.a: A copy of the Wetland Mitigation & Enhancement Plan dated October 31, 1991 and previously provided to the City of Renton as part of Site Plan Approval is enclosed (3 copies) . R-sp-ctful , I J Royf e. erg Pr:sident RAB:fvj cc: Patricia Trerice Permit Coordinator, Shoreline Management D.O.E. (ltr, exhibits & wetland study) Larry Warren: Renton City Attorney (ltr) Dean Erickson First City (ltr) Amy Kosterlitz Buck & Gordon (ltr) Bob Denman Jones & Stokes (ltr) y 9 MICROFLMj E CONCEPTUAL WETLAND MITIGATION PLAN Black River Corporate Park , Its 0 NJ) Prepared for: Mr. Dean Erickson First City Washington 700 Fifth Avenue, Suite 6000 Seattle, WA 98104 Prepared by: Jones & Stokes Associates 2820 Northup Way, Suite 100 Bellevue, WA 98004 (206) 822-1077 October 31, 1991 Ia � Table of Contents Page INTRODUCTION 1 BASELINE INFORMATION 1 Wetland 1 1 Wetland 2 4 Wetland 3 4 Wetland 4 4 Wetland Functional Values j 5 Groundwater Recharge 5 Groundwater Discharge 5 Flood Storage - 6 Shoreline Anchoring ! 6 Sediment Trapping 6 Food Chain Support 7 Wildlife Habitat 7 Active Recreation, Passive Recreation, Heritage, and Education 7 Fishery Habitat 7 IMPACTS TO WETLANDS 8 Mitigation Proposal 8 Environmental Goals 9 Plan Overview 9 Existing Condition of Mitigation Areas 9 Detailed Work Plan 10 Performance Standards j 13 Monitoring Program _ 13 Contingency Plan 13 Performance Bond 14 CITATIONS 14 Attachment A FIRST CITY WA 10/31/91 1 List of.Figures Figure Page 1 Vicinity Map 2 2 Wetlands on Tracts A and B and Adjacent Areas 3 3 Wetland Mitigation and Buffer Areas Follows Page 14 FIRST CITY WA 10/31/91 11 List of Tables Table Page 1 Planting List for Black River Corporation Park Mitigation and Buffer Areas 12 FIRST CITY WA 10/31/91 111 INTRODUCTION First City Development Corporation proposes to build the Black River Corporate Park offices on property located in the City of Renton, Washington, in King County (Figure.1). The subject property is approximately 28 acres and is divided into two parcels designated Tract A and Tract B. Springbrook Creek divides Tracts A and B; Tract A is a parcel of 12.7 acres west of Tract B, which is a parcel of 15.7 acres. The property is bordered by Oaksdale Avenue Southwest to the south, Naches Avenue Southwest and Southwest Seventh Street to the east, and a King County pump station to the west. Riparian forest and a pump station pond(P-1 pond) borders the property to the north. This report has been prepared to address wetland issues associated with the development of the Black River Corporate Park. This document describes existing wetlands at the site, impacts to wetlands that would result from the proposed development, and a proposed conceptual wetland mitigation plan. BASELINE INFORMATION The parcel is relatively flat and contains no steep slopes. Portions of both Tracts A and B were filled and graded in 1984, 1987, and 1988. Two wetlands were delineated on both Tract A and Tract B (Figure 2). The majority of Tract A is upland and primarily vegetated with herbaceous species. Diverse upland and wetland communities occupy Tract B. Visits to the site were conducted on March 25 and October 21, 1991. Four wetlands were identified and delineated on the property during the March 25 site visit. On October 21,the site was revisited to investigate potential mitigation areas. Figure 2 presents wetland locations and acreages, a total of approximately 1.24 acres. These wetlands were not identified during the King County Planning Division (1981) wetland inventory. Based on the U.S. Fish and Wildlife classification scheme (Cowardin et al. 1979), wetland habitat at the site would be classified as palustrine emergent,palustrine scrub-shrub, and palustrine forested. As observed during the March 25 site visit, vegetation, soils, and hydrology for each of the four wetlands are briefly described in the following sections; a more detailed description is provided in the wetland report in Attachment A. Wetland 1 Wetland 1 is a palustrine scrub-shrub and emergent wetland that occurs as an enclosed depression on Tract A (Figure 2). The majority of this wetland is scrub-shrub dominated by willow (Salix spp.) saplings; red alder (Alnus rubra) saplings and red-osier FIRST CITY WA. 10/31/91 1 4 t Eariington Golf Course • �� k . SW 7th St. 7 .,:, \ SITE \ 0 TUK.WILA 405 sour ���'ei she ..,: RENTON m Longaaes • Race Track m 5- i . 0 .5 1 l I I MILES • Figure 1. Vicinity Map FIRST CITY WA 2 10/31/91 • a - 0` womuswill • �� 1� P-1 PUMP PLANT P-1 POND' : A - `,) U �� � ` 1 e� ! NORTH 1.1 Acre • ( .1 ' �� - • j .o�� i�1� i Wetland APPROX.aoo' o la retained Monster Road j 051 - TRACT B/ -4 1 z ) 1 4 ` ; S.W.Seventh St. Legend ya 0.04 Acre • 0.1 Acre 0aksdale Ave S.W. c. Wetland t'iowct nroa Wetlands (To be filled 4 watlaix�s itotal) L A ' 7o be filled) . tract n and B Boundaries METRO - • Figure 2. Wetlands on Tracts A and B and-Adjacent Areas • dogwood (Comus stolonifera) occasionally appear. A small portion of this wetland is emergent habitat. Soft rush (Juncus effusus), orchard grass (Dactylis glomerata), and reed canarygrass (Phalaris arundinacea) are the dominant herbaceous species in the emergent portion of the wetland. Soils on Tract A have been mapped by the Soil Conservation Service (SCS) as Puyallup fine sandy loam. Puyallup fine sandy loam is described as a soil formed in alluvium, typically found in valley bottoms, and not listed as hydric by the SCS. Soils in this wetland were observed to be low chroma silty fine sands with mottles. As previously stated, this site has been graded and filled. The soils observed are compacted fill material. Standing water was observed within the wetland. The primary source of water is precipitation which does not percolate through the compacted soils. Wetland 2 Wetland 2 is a palustrine emergent wetland that occurs as an enclosed depression on Tract A. This wetland has also been disturbed, and the vegetation lacks diversity. Soft rush is the dominant herbaceous species. Soils in this wetland were observed to be low chroma silty sands with light brown mottles. Standing water was observed and is likely due primarily to precipitation collecting atop compacted fill. Wetland 3 Wetland 3 is a palustrine emergent wetland that occurs as an enclosed depression located on Tract B. Dominant emergent vegetation consists of common cattail (Typha latifolia) and reed canarygrass. The SCS has mapped soils on Tract B as Woodinville silt loam. Woodinville silt loam is listed as hydric by the SCS and is described as a poorly drained soil formed in alluvium and is typically found in stream bottoms. Soils were observed to be low chroma Warns with mottles. Precipitation and storm runoff are the primary sources of water. Standing water atop of the compacted fill was observed during the field investigation. Wetland 4 This palustrine scrub-shrub and emergent wetland is located on Tract B within the historic Black River channel. Dominant shrub vegetation consists of red alder saplings, willow saplings, and salmonberry (Rebus spectabilis); red elderberry (Sambucus racemosa), Oregon ash (Fraxinus latifolia), and red-osier dogwood occur occasionally. Dominant • emergent vegetation consists of common cattail,purple loosestrife(Lythrum salicaria),small- FIRST CITY WA 10/31/91 4 fruited bulrush(Scirpus microcarpus),reed canarygrass, and soft rush. A small forested area dominated by black cottonwood (Populus trichocarpa) and red alder occurs in the northeastern portion of the wetland. This wetland is located in a depression at an elevation approximately 15 feet below surrounding the upland fill areas on Tract B. Soils within the wetland were observed to be black mucks to a depth of 3 feet Standing water or surface soil saturation was observed throughout the wetland area. A 4- to 5-foot diameter concrete culvert placed in an approximately 50-foot-wide fill berm divides the wetland into northern and southern portions. The culvert invert elevation is higher than the wetland elevation; water flowing through the culvert is most likely only during high storm events. The primary source of water within this wetland is high groundwater levels. Water flows north from this wetland to a small channel which connects to the P-1 storage pond. • Wetland Functional Values To create a wetland to compensate for one that is being disturbed, it is important to understand the existing functional values so that these functions can be considered in the replacement wetland. It is, however, extremely difficult to quantify wetland functional values. Methodologies developed to quantify wetland functions.and values are usually not appropriate for small, relatively urban, or disturbed settings. For these reasons, this discussion is highly subjective. Eleven functions are identified by the Federal Highway Administration's Wetland Functional Assessment Method (Adamus 1983). Relative values of each function at Tracts A and B are briefly discussed in this section. Groundwater Recharge Certain wetlands can contribute significantly to recharging regional groundwater. The majority of hydrologists believe, however, that most wetlands do not perform this function (Sather and Smith 1984). The value of a particular wetland for groundwater recharge is probably related to the edge to volume ratio of the wetland (Erwin 1990). Wetlands 1, 2, and 3 are small, enclosed depressions which are primarily fed by precipitation. Groundwater recharge is not expected to be a functional value of these wetlands. Some groundwater recharge may occur in Wetland 4. Groundwater Discharge Wetlands can be valuable as groundwater discharge sites because they can help to maintain stream flow during dry portions of the year: Because Wetlands 1, 2, and 3 are FIRST CITY WA 10/31/91 5 - V primarily perched surface water wetlands that do not assist in maintaining streamflow, groundwater discharge is not an important function. However, Wetland 4 is an important discharge site due to its location in the historic Black River channel and its connection to a drainage channel that flows into the P-1 pond. Flood Storage By storing stormwater, wetlands can serve to reduce runoff peaks into slower discharges of longer duration. The flood storage value of a wetland varies with a number of factors, including topography; soils, surrounding land uses, and the type and amount of vegetation that is present. All of the wetlands on Tracts A and B occur in depressional areas. Flood storage values are significantly greater in Wetland 4 due to the large size of the system, association with other systems, and its location within the historic Black River channel. Wetlands 1, 2, and 3 provide some flood storage values, however, this is limited by the small size of these wetlands. Shoreline Anchoring This functional value is not applicable to the Black River Corporate Park project. Sediment Trapping • Wetlands serve to purify water by removing sediments, excess nutrients, and toxic chemicals through a variety of mechanical, chemical,and biological processes. This function is particularly important when a wetland discharges into a watercourse. Wetland 4 provides significant water purification due to the dense emergent and shrub vegetation, slow movement of water, connection to a drainage channel which flows into the P-1 pond, and its large.size. Wetland 3 is densely vegetated with emergent species which provide some water purification; however, the enclosed nature of this wetland limits this function. Wetlands 1 and 2 are limited by their small size and lack of connection with other systems. FIRST CITY WA 10/31/91 6 • Food Chain Support Wetlands can be highly.productive ecosystems that are used by numerous species for nesting, spawning,rearing, and feeding. Primary productivity is usually high in wetlands and is generally highest in emergent wetlands that contain water year-round, because they support fast-growing species. Wetland 4 contains a mix of emergent and scrub-shrub community types. The year- round presence of standing water in some portions of the wetland and the variety of emergent species present augment food chain support functions. Water is present seasonally in Wetlands 1, 2, and 3, which are small isolated systems that are not expected to provide significant food chain support. Wildlife Habitat A number of species are dependent upon wetlands for all or part of their life cycles. The wildlife habitat value of a wetland is dependent in part on its structural and species diversity of plant communities, the proximity of desirable upland habitat, and surrounding land uses. Wetlands 3 and 4 are surrounded by dense Himalayan blackberry (Rubus discolor). This offers protection from human intrusion. Passerine and prey species utilize the dense vegetation of Wetland 4 and open water present in Wetland 3 as cover,nesting, and feeding habitat. Additionally,the adjacent stream channel and riparian forest augment the excellent wetland habitat provided. A heron rookery has been observed north of the wetland area. Wetlands 1 and 2 may provide habitat for passerines when standing water is present. However, the small size of these wetlands limits the wildlife habitat value. Active Recreation, Passive Recreation, Heritage, and Education Wetlands can provide valuable opportunities for recreation and education, such as bird watching or studying a.natural system. Wetlands 3 and 4 are not currently used for recreation or education due to the surrounding dense Himalayan blackberry which prevents human intrusion. Wetlands 1 and 2 are not used either, due to their disturbed nature and the absence of formalized opportunities for education or recreation.. Fishery Habitat This functional value is not applicable to the Black River Corporate Park project. FIRST CITY WA 10/31/91 7 IMPACTS TO WETLANDS First City Washington proposes to develop the Black River Corporate Park offices at this site. Facilities to be developed on Tract B include three office buildings and one parking garage.This construction would require placement of fill in approximately 0.14 acre of wetland. Placement of fill would occur in emergent Wetlands 2 and 3, as well as in scrub-shrub and emergent Wetland 1. The two emergent wetlands that would be filled are currently dominated by common cattail, soft rush, and reed canarygrass. The scrub-shrub and emergent wetland that would be filled is dominated by willow saplings, shrubs, and herbaceous species such as soft rush, orchard grass, and reed cannarygrass. The City of Renton will require an average 50-foot buffer with a 25 foot minimum buffer. Mitigation Proposal Mitigation includes avoiding, minimizing, or compensating for adverse wetland impacts. According to the 1990 State of Washington Department of Ecology Model Wetlands Protection Ordinance, mitigation consists of the following steps, listed in order of preference: • avoiding the impact altogether by not taking a certain action or parts of an action; • minimizing the impacts by limiting the degree or magnitude of the action and its implementation, by using appropriate technology, or by taking affirmative steps to avoid or reduce impacts; • rectifying the impact by repairing, rehabilitating, or restoring the affected environment; • reducing or eliminating the impact over time by preservation and maintenance of operations during the life of the action; • compensating for the impact by replacing, enhancing, or providing substitute resources or environments; or • monitoring the impact and the compensation project and taking appropriate corrective measures. The degree to which this mitigation plan adheres to this list is demonstrated in part by the project history. Initial site plans included filling all of the onsite wetlands and developing the entire property. The recognized value of the historic Black River channel FIRST CITY WA 10/31/91 • 8 wetland prompted the project applicant to redesign the site plan layout to preserve this wetland. In addition, impacts to this wetland were further reduced through the implementation of wet ponds for detention and biofiltration swales to improve'.the quality of stormwater runoff from the property by the development. The wetlands proposed to be filled were selected due to past grading activities and limited functional values. The proposed creation of additional wetland through mitigation involves.restoring historic wetland. Environmental Goals The specific goals of the mitigation proposal are: • to compensate for 0.14 acre of fill in wetlands 1, 2, and 3, by creating 0.21 acre of wetland contiguous with Wetland 4 on Tract B; • to improve the structural and vegetative diversity in the wetland; _ • to improve the water flow within Wetland 4 and allow establishment of new wetland; • to provide an average 50-foot buffer with a 25 foot minimum; and • to avoid impacts to the upland forested areas during construction. Plan Overview Two areas are proposed for mitigation; both of these areas are contiguous with Wetland 4 and consist of filled portions of the historic Black River channel (Figure 3 at end of report). Each area will be prepared by clearing existing vegetation and over-excavating soils to a depth of 2 feet so the finished grade is level with the existing wetland. Topsoil will be imported and placed in the mitigation area to provide a suitable planting medium and to achieve desired finished grades. Following the preparation of soils, each area will be planted with native wetland vegetation. In addition, wetland buffers will be planted with shrubs and trees to provide additional protection to the wetland. After approval by all parties,detailed construction drawings will be developed by a landscape architect from Jones & Stokes Associates, who will work in close coordination with a wetland biologist and the project engineer. Existing Condition of Mitigation Areas Mitigation area 1 is a 50-foot-wide band of fill that has been previously placed across Wetland 4 (Figure 3). The fill currently supports an upland forest and shrub area FIRST CITY WA 10/31/91 - 9 dominated by black cottonwood, red alder and Himalayan blackberry with salmonberry and red elderberry commonly occurring. Mitigation Area 2 occurs along the southeastern wetland edge (Figure 3) in an upland forest and shrub area. Red alder, black cottonwood, and Himalayan blackberry are the dominant vegetation; evergreen blackberry (Rubus laciniatus) occurs occasionally throughout this area. Fill was observed throughout Mitigation Area 2. Detailed Work Plan Topography and Grading. To achieve elevations which would match those of the surrounding wetland, fill would need to be removed. In Mitigation Area 1, the fill and culvert would be removed by an excavator working from the upland areas at the west side of the mitigation site. Prior to the start of work, erosion measures would be in place to ensure that the fill removal would not allow soil to move into the wetland. The area would be over-excavated by approximately.2 feet to allow for soil rebound and the placement of about 18 inches of topsoil. This topsoil will be compacted to 85% proctor density. Side slopes between the upland and newly created wetland areas would match the surrounding In Mitigation Area 2, soil would be excavated by equipment working from the east side of the existing wetland. The site would be over-excavated by about 18 inches to allow placement of topsoil. This area will be slightly higher than Mitigation Area 1 to promote growth of species adapted to less saturated conditions. Side slopes between the upland and created wetland will be no steeper than 3:1. Hydrology. Hydrology has been called the "single-most important factor to consider in designing and implementing restoration/creation projects for specific types of wetland systems and their related functions," (Erwin 1990). The premise of the mitigation project is that the greatest opportunity to achieve the proper hydrologic regime is to locate areas that once functioned as wetland, but have since been filled. If the fill is removed and a suitable planting medium is established, the original hydrologic conditions will promote the growth of wetland plants. The source of water for both mitigation areas will be the high groundwater levels which exist in the surrounding wetland. Removal of the culvert and associated fill will reestablish the direct surface water connection once present between the northern and southern portions of the historic Black River channel. Soils. All imported topsoils will be compacted as called out in the Topography and Grading section for Mitigation Areas 1 and 2. Soil compaction and grading will be such that proper planting conditions will be achieved. Vegetation. Mitigation Area 1 will be planted with emergent species tolerant of water regimes ranging from standing water during the nongrowing season and early growing season, to dry conditions by late summer. After grading, the area will be hydroseeded with a mix containing meadow foxtail (Alopecurus pratensis), colonial bentgrass (Agrostis tenuis), FIRST cr1Y WA 10/31/91 10 red fescue (Festuca nibra), and marsh speedwell (Veronica scutellata) (Table 1). This area will be planted with a mixture of emergent species and a few shrubs. Emergent species to be planted include soft rush, common water plantain (Alisma plantago-aquatica), slough sedge (Carex obnupta), small-fruited bulrush, and hardstem bulrush (Scirpus acutus) (Table 1). The outer edge of Mitigation Area 1 will be planted with a few red-osier dogwood and salmonberry. Shrubs will add an element of structural diversity to this area, which will increase opportunities for wildlife. The black cottonwood and red alder that presently occur in Wetland 4 are expected to provide an adequate seed source for re- establishment of these species. A wetland scrub-shrub community will be planted in Mitigation Area 2. The goal of creating scrub-shrub habitat is to increase habitat diversity in the wetland. Species to be planted include salmonberry, red-osier dogwood, and willow (Table 1). A few Oregon Ash trees will also be planted in this area. Mitigation Area 2 will also be hydroseeded prior to planting; hydroseed will help stabilize soils during the period before trees and shrubs become established. All plant species used in the mitigation areas will be acquired from commercial _ suppliers in the Pacific Northwest region. This region is defined as Washington, Oregon, Idaho, Montana, and British Columbia. If any of the species mentioned in this plan are not available at the time of construction, substitutions will be recommended by the wetland biologist. Limiting the plan to commercially available species prevents the practice of collecting from existing wetland sites. Limiting the procurement area to the Pacific Northwest should help ensure that,species used are adapted to this region. Post-Construction Functional Values of Wetlands. The following is a discussion of the expected functional values of the wetlands after construction of the project, as well as mitigation areas. Post-construction functional values for Wetlands 1, 2, and 3 will be permanently lost due to the proposed placement of fill. Post-construction functional values for Wetland 4 will be affected by the proposed creation of two mitigation areas contiguous with Wetland 4. The creation of two mitigation areas contiguous with Wetland 4 increases wetland size, community diversity, and provides surface water connection between the northern and southern portions of Wetland 4 (Figure 3). These factors augment flood storage, sediment trapping, and food chain support. The mitigation areas will be approximately 0.21 acre larger than the existing Wetland 4 acreage;therefore,the flood storage capacity will increase proportionally. There may be an initial reduction in food chain support and sediment trapping values until vegetation in the mitigation area becomes established. However, because. the total wetland area will be slightly larger after mitigation, functional values should eventually increase proportionally to the increase in size and planting with faster growing emergent species. Several functional values are not intended to be goals of the mitigation areas. Post- ' construction groundwater discharge and groundwater recharge values are expected to be similar to existing functional values. Shoreline anchoring and fishery habitat functional FIRST CITY WA 10/31/91 ' ' 11 • Table e 1. -Planting List for Black River Corporation Park Mitigation and Buffer Areas Mitigation Mitigation Buffer Area No. 1 Area No. 2 Area Trees Oregon ash (Fraxinus latifolia) X Big-leaf maple (Acer macrophyllum) X western red cedar (Thuja plicata) X Shrubs red-osier dogwood (Comus stolonifera) X X salmonberry (Rubus spectabilis) X X willow (Salix spp.) X vine maple (Acer circinatum) X hazelnut (Corylus cornuta) X Douglas' hawthorn (Crataegus douglasii) X salal (Gaultheria shallon) X Herbs • soft rush (Juncus effusus) X common water plantain (Alisma plantago- X aquatica) slough sedge (Carex obnupta) X small-fruited bulrush (Scirpus microcarpus) X hardstem bulrush (Scirpus acutus) X Hydroseed Mix meadow foxtail (Alopecurus pratensis) X X colonial bentgrass (Agrostis tenuis) X X red fescue (Festuca rubra) V X X marsh speedwell (Veronica sutellata) X FIRST CITY WA 10/31/91 12 • values do not apply to the proposed development of the Black River Corporate Park property. Due to development of the site and associated increase in activity, wildlife values onsite will likely be permanently.reduced. Buffers. Buffer areas around wetlands can enhance wetland functional values by reducing opportunities for human intrusion and by providing additional wildlife habitat opportunities. The City of Renton will require that a minimum 25-foot undisturbed buffer be maintained around all wetlands. Additionally, all currently unvegetated buffer areas will be planted with shrub and tree species. Planting buffers will increase wildlife habitat values and reduce opportunities for human intrusion. Species proposed for buffer enhancement areas include western red cedar (Thuja plicata), big-leaf maple (Acer macrophyllum),.vine maple(Acercircinatum),hazelnut(Cowylus comuta),Douglas'hawthorn(Crataegus douglasii), and salal (Gaultheria shallon). Performance Standards The proposed length of time for mitigation compliance is 3 years. This will allow planted species to become established and increase in size. Survivability of planted species is expected to be 80% or greater by the third year. If this survivability is achieved and the plants are determined to be healthy and vigorous, then the wetland mitigation will be judged successful. Monitoring Program Monitoring during construction will be conducted by .the landscape architect responsible for designing the construction documents for the wetland mitigation. A 1-year maintenance period will require the landscape contractor to care for new plantings and replace plants if total mortality exceeds 20%. Post-construction monitoring will be conducted by the wetland biologist for 3 years. Annual visits to the site during the growing season will be conducted to evaluate the condition of the wetland. Planted species within the wetlands will be evaluated for health and vigor, and photograph points will be established. An annual report will be prepared by the wetland biologist and submitted to the City of Renton to ensure tracking of the project. A summary report will be prepared at the end of the third year. Contingency Plan The purpose of a contingency plan is to outline opportunities available if the monitoring program indicates failure of the mitigation. All contingencies cannot be anticipated; however, any problems that occur will be evaluated in the field by a wetland • biologist and/or landscape architect specializing in wetland design, and appropriate corrective action will be recommended. . . FIRST CITY WA 10/31/91 13 • Performance Bond A:performance bond may be required by the-City of Renton. This bond would be of an amount sufficient to cover the cost of the proposed mitigation and potential contingency. It may be held for 3 years or until the project is determined to be successful by city staff. CITATIONS Adamus, P. R. 1983. A method for wetland functional assessment. Volumes 1 and 2. Pages 431-433 in Department of Transportation, Federal Highway Administration. (FHWA IP-82-24.) Office of Research, Environmental Division. Washington DC. Cowardin, L. M., V. Carter, F. C. Golet, and E. T. LaRoe. .1979. Classification of wetlands and deepwater habitats of the United States. (FWS/OBS-79/31.) U.S. Fish and Wildlife Service, Northern Prairie Wildlife Research Center. Jamestown, ND. Erwin, K. L. 1990. Wetland evaluation for restoration and creation. Pages 429-458 in Kusler, J. A. and M. E. Kentula (eds.) Wetland creation and restoration: the status of science. Island Press. Washington DC. King County Planning Division. 1981. Department of Planning and Community Development. King County wetlands inventory. Seattle, WA. Sather, J. H., and R. D. Smith. 1984. An overview of major wetland functions and values. (NWS/OBS 84/18.) U.S. Department of the Interior, Fish and Wildlife'Service. Washington, DC. - FIRST CITY WA 10/31/91 14 Attachment A ATTACHMENT A Wetland Report This report presents the results of a wetland evaluation conducted at your request by Jones & Stokes Associates on March 25, 1991. The site, which is located north of the junction of Oaksdale Avenue Southwest and Southwest Seventh Street in the City of Renton in Section 13, Township 23 North, Range 4 East of King County, Washington (Figure 1). Based on this investigation, four wetlands were determined to be present. Methodology Wetlands at the site were delineated using the methodology outlined in the Federal Manual for Identifying and Delineating Jurisdictional Wetlands (Federal Interagency Committee for Wetland Delineation 1989). This document represents an interagency effort whereby the U.S.Fish and Wildlife Service(USFWS),U.S.Soil Conservation Service(SCS), U.S. Army Corps of Engineers (Corps), and the U.S. Environmental Protection Agency (EPA) present a unified approach to wetland delineation. This approach requires examination of three wetland parameters: soils, hydrology, and vegetation. For an area to be considered wetland, a positive indicator for all three of these parameters must be present. Each parameter is discussed further in the following paragraphs. Hydric (wetland) soils are defined as those soils which are saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions that favor the growth and regeneration of hydrophytic(wetland)vegetation. Hydric indicators include low soil chroma, mottles, gleying, and high organic content. During the field investigation, soils were sampled with a hand-held soil auger and examined for hydric indicators. Areas possessing wetland hydrology are inundated either permanently or periodically, or the soil is saturated to within 1 foot of the surface for a week or more during the growing season. The site was examined for indicators of wetland hydrology, including ponding, soil saturation,water-stained leaves, and cracking at the soil surface. In areas where no positive indicators of wetland hydrology were observed but positive wetland indicators were present for soils and vegetation, wetland hydrology was assumed to be present. Hydrophytic plants are those plants that grow in water or in a substrate that is at _ least periodically saturated. Commonly occurring plant species have been rated by the USFWS as to their frequency of occurrence in wetlands. The rating system uses a range from obligate upland (plants that occur in wetlands less than 1% of the time) to facultative (those occurring 33% to 66% of the time) to obligate wetland (those occurring more than 99% of the time). For an area to be considered a wetland vegetative community, 50% or more of the dominant species in that area must be rated as facultative or wetter. Vegetation throughout the site was examined and data regarding vegetation, soils, and hydrology were recorded on data forms that are included with this report. • 1 Earlington Golf Course • • ! SITE • TUKWILA Ter 81 w �: RENTON CD • Longacres • Race Track-33 • 5 0 5 1 l I I MILES • • Figure 1 . Vicinity Map . 2 • • Wetlands were identified onsite with orange and black striped flagging affixed to vegetation at a height of 4 to 6 feet at 20- to 50-foot intervals. It is understood that the flagged wetland edge will be professionally surveyed. Site Conditions The subject property is divided into two parcels designated Tract A and Tract B. Tract A is a parcel of 12.71 acres west of Tract B, which is a parcel of 15.7 acres situated in the City of Renton, King County, Washington. Springbrook Creek divides Tracts A and B. The property is bordered by Naches Avenue Southwest and Southwest Seventh Street to the east, King County Pump Station to the west, and Oaksdale Avenue Southwest to the south. Riparian forest and a pump station pond (P-1 pond).borders the property to the north. The topography of the project site is generally flat. Portions of both parcels were previously filled and graded in 1984, 1987, and 1988. The majority of Tract A is upland and primarily vegetated with herbaceous species. Diverse upland and wetland vegetative communities typify Tract B. - Wetlands Four wetlands were identified on the subject property (Figure 2). Based on the USFWS Classification scheme (Cowardin et al. 1979), wetland habitat at the site would be classified as palustrine forest, palustrine scrub-shrub and emergent. These wetlands were not identified during the King County (1981) wetland inventory. Vegetation, soils, and hydrology of the wetland areas are described in the following sections. Soils on Tract A have been mapped by the SCS as Puyallup fine sandy loam and Tract B has been mapped as Woodinville silt loam. Puyallup fine sandy loam is not listed as hydric by the SCS and is described as a well drained soil formed in alluvium, typically found in valley bottoms. Woodinville silt loam is described as a poorly drained soil formed in alluvium, typically found in stream bottoms and is listed by the SCS as hydric. As noted above, the majority of both sites have been filled. Wetland 1. This wetland occurs as an enclosed depression south centrally located on Tract A. A mixture of palustrine scrub-shrub and emergent communities typify this wetland. The wetland has resulted from surface water collecting in a depression resulting from past grading. The shrub portion of this wetland is dominated by willow saplings (Salix spp.); red alder saplings (Alnus rubra) and red-osier dogwood (Corpus stolonifera) occasionally appear. Soft rush (Juncus effusus);orchard grass (Dactylic glomerata), and reed canarygrass (Phalaris arundinaceae) dominate the herbaceous layer in this wetland. 3 0:1,01r P-1 PUMP PLANT 11110- P-1 POND NORTH op. , 1.1 Acre Monster Road Wetland APPROX.400' / (To be retained) Gyt TRACT B 5 S.W.Seventh St. Legend qb4 0.04 Acre 0.1 Acre Oaksdale Ave S.W. Wetland 17"A Projuci Arua Wetlands fro be filled) • wetlands t'l'Otal!ie filled) tract A and B Boundanos • METRO Figure 2. Wetlands on Tracts A and B and Adjacent Areas • • Soils in this wetland were observed to be low chroma silty fine sands (10YR3/1 and 10YR 5/1) with orange mottles (7.5YR 4/6). The soil most likely consists of fill excavated from the adjacent P-1 storage pond. The fill has been graded flat and tightly compacted. • Approximately 4 to 6 inches of standing water was observed in this wetland at the time of the field.investigation. Approximately 1 to 2 inches of water flows east in a poorly defined ditch and enters the wetland along the western wetland edge. Precipitation unable to infiltrate the compacted fill soils is the primary source of water. Wetland 2. This palustrine emergent wetland is located along the eastern edge of Tract A. Wetland 2 is an enclosed depression bordered by an embankment along the eastern edge. Similar to Wetland 1, this wetland formed as the result of precipitation collecting in a depression caused by the uneven grading of fill soils. ' . Soft rush is the dominant emergent vegetation throughout this wetland. Vegetation in this wetland is sparse and lacks diversity. Soils in this wetland were observed to be low chroma silty sands (10YR 3/2) with light brown mottles (10YR 3/3). _ Approximately 4 inches of standing water was observed at the time of field investigation. Precipitation is the primary source of water in Wetland 2. Wetland 3. This wetland is an enclosed depression, south centrally located on Tract B. Palustrine scrub-shrub and emergent vegetative communities typify this wetland. Dominant shrub vegetation consists of willow saplings. Reed canarygrass and common cattail(Typha latifolia) dominate the emergent vegetative layer within this wetland; soft rush occurs occasionally. Soils in this wetland were observed to be low chroma loams (10YR 3/2)with mottles. Approximately 1 to 2 inches of water was observed in this wetland at the time of field • investigation. Standing water is primarily due to storm run-off and precipitation. Wetland 4. This wetland is a drainage swale located within the historic Black River channel along the northern and eastern property edge of Tract B. The wetland is approximately 15 feet below the elevation of the surrounding fill and forest. Wetland 4 supports diverse palustrine scrub-shrub and palustrine emergent vegetative communities. Dominant shrub vegetation in the southeastern portion of this wetland consists of willow saplings, red alder saplings, and salmonberry (Rubus spectabilis). Salmonberry continues to dominate the shrub community throughout this wetland. Red elderberry (Sambucus racemosa), Oregon Ash (Fraxinus latifolia), and red osier dogwood occur occasionally throughout the wetland. A small canopy layer ,is established within the northeastern portion of the wetland and is dominated by black cottonwood (Populus 5 • trichocarpa) and red alder. Common cattail, small-fruited bulrush (Scirpus microcarpus), purple loosestrife (Lythrum salicaria), soft rush, and reed canarygrass are the dominant emergent vegetation throughout the wetland. Soils within this wetland were observed to be native black.mucks to depths over 3 feet with a color of 10YR 2/0 and no mottles. Approximately 6 to 12 inches of standing water was observed throughout the majority of the wetland at the time of the field investigation. Surface saturation was observed in areas lacking inundation. The water source for this wetland appears to be high groundwater levels. Water in the wetland flows slowly north to a small channel which connects to the P-1 storage pond. Wetland Functional Values Wetlands are considered to be valuable resources due to their functions in water pollution control, flood control, wildlife habitat, and as aesthetically pleasing open spaces. Wetlands identified on Tract B of this site serve to provide many of these functions; the Tract A wetland provides minimal functions. Wetlands serve to purify water by removing sediments, excess nutrients, and toxic . chemicals through a variety of mechanical, chemical, and biological processes. Wetland 4, on Tract B, has excellent biofiltration potential due to the dense vegetation, diversity of vegetation, the large size of the wetland system, and its connection with a drainage 'channel that flows into the P-1 storage pond. The lack of a distinct water inlet to the wetland, however, limits the actual biofiltration function of the wetland. Wetland 3 is also densely vegetated with a variety of emergent species and has some biofiltration qualities. The lack of a surface water inlet and outlet, however, severely limits the hydrologic functions of the wetland. Although Wetlands 1 and 2 of Tract A are vegetated primarily with emergent species,their small size and lack of association with other systems significantly limits potential biofiltration. The wildlife habitat value of a wetland is dependent in part on the structural and species diversity of plant communities, the proximity of desirable upland habitat, and surrounding land uses. The diversity of the vegetative communities of Wetland 4 provide excellent habitat for passerine and prey species. The proximity of Wetland 3 to Wetland 4, in addition to the diverse emergent vegetation and presence of open water, also provides moderate to excellent wildlife habitat. Furthermore, the adjacent riparian forest, stream channel, and heron colony, as well as protection from human intrusion by surrounding dense,blackberry; greatly enhance the wildlife habitat these wetlands provide. Passerines may utilize Wetlands 1 and 2 when standing water is present; however, the small size of these wetlands greatly limits habitat for wildlife. 6 • The flood storage value of a wetland varies with a number of factors, including topography, soils, surrounding land uses, and the type and associations with other aquatic systems. Flood storage values are significant for Wetland 4 due to the large size, association with other systems, and its location within the historic Black River channel. The proximity of Wetland 3 to Wetland 4 and the depressional topography enhance the Wetland 4 flood storage value. Wetlands 1, 2, and 3 provide some storage values due to their depressional topography, but are limited by their size. Impacts Development of the property would result in filling the two wetlands on,Tract'A (Wetlands 1 and 2) and the filling of Wetland 3 on Tract B (Figure 2). This would result in the loss of 0.14 acres of wetland. Grade at the location of the wetlands will be raised approximately 2 feet, resulting in the placement of approximately 450 cubic yards of fill in the wetlands. No filling of Wetland 4, the remnant of the Black River channel, is proposed. A buffer averaging 50 feet in width will be maintained around this wetland system. Conclusions Evaluation of this site using the Unified Federal Methodology 'shows that four wetlands are present; two within Tract A and two within Tract B. All four wetlands identified would be classified as palustrine emergent; Wetlands 1, 3, and 4 also include palustrine scrub-shrub vegetative communities. Wetland 4 provides substantial functions and values. The Washington Department of Ecology Model Wetland Ordinance categorizes wetlands into four classes, with Category 1 wetlands being the most unique. Based on this system, Wetlands 1, 2, and 3 would be rated Category 3 or 4, while Wetland 4 would be rated Ca cgory 1 or 2. Citations Cowardin, L. M., V. Carter,F. C. Golet, and E. T. LeRoe. 1979. Classification of wetlands and deep water habitats of the United States. U.S. Fish and Wildlife Service Publication. FWS/OBS-79/31. Federal Interagency Committee for Wetland Delineation. 1989. Federal manual for identifying and delineating jurisdictional wetlands. U.S. Army Corps of Engineers, U.S.Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S.D.A. Soil Conservation Service, Washington, DC. Cooperative technical publication. King County. 1981. King County wetland inventory. 7 JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW • Project/Site: Wetland Field Investigator(s): Denman/Edwins Date: 3/25/91 County/City: King County Wetland #: 1 • Plant Community: PSS/PEM Plot #: Weather: wercast • VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Salix spp. sapling, FAC-OBL, shrub 2. Phalaris arundinacea, FACW, herbaceous 3. Juncus effusus, FACW+, herbaceous 4. S. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, and/or FAC: 100% Is the hydrophytic vegetation criterion met? yes Rationale: All dominant spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam SCS hydric list? yes Is the observed soil a Histosol? n o Depth Matrix Mottle 10" Glev Texture, lOYR 5/1 7.5YR 4/6 no silty fine sand Other hydric soil indicators: Is the hydric soil criterion met? yes Rationale: chroma Comments: fill material HYDROLOGY Is the area inundated? yes Depth of water: 6" Is the soil saturated? yes Depth to water: surface Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? yes Rationale: saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? . yes comments: JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Black River Field Investigator(s): Denman/Edwins County/City: King County Date: 3/25/91 Plant Community: herbaceous upland Wetland #: upland Weather: •'Vercast Plot#: adjacent to wetland VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Agrostis spp., FAC-FACW, herbaceous 2. Dactylis glomerata, FACU, herbaceous 3. 4. a. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, and/or FAC: 50% Is the hydrophytic vegetation criterion met? yes Rationale: 550% of spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? no SCS hydric list? yes Depth Matrix Mottle 10" lOYR 3/3 G1ey Texture yes no silty fine sand Other hydric soil indicators: Is the hydric soil criterion met? no • Rationale: lack of chroma Comments: fill material HYDROLOGY • Is the area inundated? no Is the soil saturated? no Depth Depth to water: Other field evidence of surface inundation or soil saturation:to water: Is the wetland hydrology criterion met? no Rationale: lack of saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE k the sample plot a wetland? no ommentc: • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): Denman/Edwins County/City: King County Date: 3/25/91 Plant Community: PSS/PEM Wetland #: 1 • Weather: ,v -ca : Plot #: 2VEGETATION Dominant Plant Species, Indicator Status, Stratum I. Salix spp. sapling, FAC-OBL, shrub 2. Phalaris arundinacea, FACW, herbaceous 3. Juncus effusus, FACW+, herbaceous 4. 5. 6. 7. 8, 9. Percent of dominant species that are OBL, FACW, and/or FAC: 100% Is the hydrophytic vegetation criterion met? yes Rationale: All dominant spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? no SCS hydric list? yes Depth Matrix Mottle GIeY Texture 0-9" lOYR 3/2 yes no fine sand Other hydric soil indicators: Is the hydric soil criterion met? yes Rationale: mottles Comments: fill material HYDROLOGY Is the area inundated? yes Is the soil saturated? yesDe Depth of water: 4" Other field evidence of surface inundation or soil sat rat onto water: surface Is the wetland hydrology criterion met? yes Rationale: saturation and inundation • JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? yes Comments: Other sop. include Ranunculus repens. • • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FC W Project/Site: Wetland • Field Investigator(s): Denman/Edwins County/City: King County Date: 3/25/91 2 Plant Community: PEM Wetland #: Weather: overcast Plot #: i VEGETATION Dominant Plant Species, Indicator Status, Stratum I. Juncos effusus, FACWf herbaceous 3. 4. 5. 6. 7. 8. 9. Percent of dominant species that are OBI, Is the hydrophytic vegetation criterion met? AC a and/or FAC: 100% Rationale: All dominant s yes pp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? SCS hydric list? yes Qg2A n o 0-8" Matrix ottl 1OYR 3/2 G 1OYR 3/3 a exture no silty sand Other hydric soil indicators: Is the hydric soil criterion met? yes Rationale: mottles Comments: fill material HYDROLOGY Is the area inundated? yes Is the soil saturated? yes Depth of water: 4' Other field evidence of Depth to water: Is the wetland surface inundation or soil saturation: surface hydrology criterion met? yes Rationale: saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? yes ':omments: JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): Denman/Edwins County/City: King County Date: 3/25/91 Plant Community: herbaceous upland Wetland #: upland Weather: overcast Plot#: adjacent to wetland VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Agrostis spp., FAC-FACW, herbaceous 2. Plantago lanceolata, FACU+, herbaceous 3. 4. S. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, and/or FAC: 50% Is the hydrophytic vegetation criterion met? yes Rationale: 550% of spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a IIistosol? n o SCS hydric list? yes ilL Mont 10" 10YR3r2 no � See ' extort no gravelly sand Other hydric soil indicators: Is the hydric soli criterion met? no Rationale: lack of mottles Comments: fill material HYDROLOGY Is the area inundated? no Is the soil saturated? no Depth of water: Depth Other field evidence of surface inundation or soil saturation:to water: Is the wetland hydrology criterion met? no Rationale: lack of saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? no Comments: • • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): Denman/EdwIns Date: 3/25/91 County/City: King County Wetland #: 3 Plant Community: PSS/PEM Weather: overcast Plot #: I VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Salix spp. sapling, FAC-OBL, shrub 2. Phalaris arundinacea, FACW, herbaceous 3. Typha latifolia, OBL, herbaceous 4. 5. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, and/or FAC: 100% Is the hydrophytic vegetation criterion met? yes Rationale: All dominant spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? n o SCS hydric list? yes Depth Matrix Mottle Glev Texture, 10" 10YR 3/2 yes no loam Other hydric soil indicators: • Is the hydric soil criterion met? yes Rationale: mottles Comments: fill material HYDROLOGY Is the area inundated? yes Is the soil saturated? yes Depth Depth of water: 1-2" Other field evidence of surface inundation or soil saturation:to water: surface Is the wetland hydrology criterion met? yes Rationale: saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? % •: Comments: • • • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): Denman/Edwins County/City: King CountyDate: 3/25/91'' Plant Community: herbaceous upland Wetland #: upland Weather: overcast Plot#: adjacent to wetlanc ?. VEGETATION Dominant Plant Species, Indicator Status, Stratum I. Cirsium arvettse, FACU+, herbaceous 2. Plantago lanceolata, FACU+, herbaceous 3. . 5. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, and/or FAC: 0% Is the hydrophytic vegetation criterion met? n o Rationale: None of the spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? no SCS hydric list? yes e Dpth t 10"Devth Mottle Glev Texture YR 3/3 no no gravelly sand Other hydric soil indicators: Is the hydric soil criterion met? no Rationale: lack of chroma Comments: fill material HYDROLOGY Is the area inundated? no Is the soil saturated? no Depth of water: Depth Other field evidence of surface inundation or soil saturation:to water: is the wetland hydrology criterion met? no Rationale: lack of saturation and inundation • JURISDICTIONAL DETERMINATION AND RATIONALE !� the sample plot a wetland? no 'omments: • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FC W Project/Site: Wetland Field Investigator(s): Denman/Ed wins County/City: King County Date: 3/25/91 Plant Community: PSS/PEM Wetland #: 4 Weather: overcast Plot #; 1 VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Salix spp. sapling, FAC-OBL, shrub 2. Phalaris arundinacea, FACW, herbaceous 3. Typha latifolia, OBL, herbaceous 4. Juncus effusus, FACW+, herbaceous S. • 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, Is the hydrophytic vegetation criterion met? yes and/or FAC: 100% Rationale: All dominant spp. are FAC or wetter. SOILS SCS Series/phase Woodinville silt loam Is the observed soil a Hlstosol? SCS hydric list? yes Leak Matrix no ot 10" 10YR 2/0 tle e no no Texture no "muck" Other hydric soil Indicators: Is the hydric soil criterion met? yes Rationale: chroma Comments: HYDROLOGY Is the area inundated? no Is the soil saturated? yes Depth of water: Other field evidence of surface inundation or Depth to water: • Is the wetland hydrologysoil saturation: surface Rationale: criterion met? yes ' saturation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? yes Comments: • • • JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): ' Denm an/Ed wins County/City: King' County Date: 3/25/91 Plant Community: PFO/PSS Wetland #•. 4 Weather: overcast Plot #: 2. VEGETATION Dominant Plant Species, Indicator Status, Stratum I. Alnus rubra, FAC, canopy • 2. Populus trichocarpa, FAC, canopy 3. Rubus spectabilis, FAC,r shrub 4. S. 6. 7. 8. 9. Percent of dominant species that are OBL, FACW, Is the hydrophytic vegetation criterion met? and/or FAC: 100% ye Rationale: All dominantyes spp. are FAC or wetter. i SOILS SCS Series/Phase Woodinville silt loam SCS hydric list? yes Is the observed soil a Histosol? e t n o . Mrix At910" at 10YR 2/0 tt ig Sara no 'mug no "muck" Other hydric soil indicators: Is the hydric soil criterion met? yes Rationale: chroma Comments: HYDROLOGY Is the area Inundated? yes Is the soil saturated? yes Depth of water: 6" Depth to water: surface Other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? yes Rationale: saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? .es Comments: Other spp. include: SAsrr. S ,R.,.. MLA. and PAAR. JONES & STOKES ASSOCIATES WETLAND DELINEATION DATA FORM ROUTINE ONSITE DETERMINATION FOR Client: FCW Project/Site: Wetland Field Investigator(s): Denman/Edwins County/City: King County Date: 3/25/91 Plant Community: upland shrub Wetland #: upland Feather: „cast Plot«: adjacent to wetland 4 VEGETATION Dominant Plant Species, Indicator Status, Stratum 1. Rubus discolor, FACU-. shrub 3. 4. 5. 6. 7. 8. 9. • Percent of dominant species that are OBL, FACW, and/or FAC: 0% Is the hydrophytic vegetation criterion met? no Rationale: None of the spp. are FAC or wetter. SOILS SCS Series/Phase Woodinville silt loam Is the observed soil a Histosol? no SCS hydric list? yes Depth at rix 10 Mottle Glev Texture YR 3/3 no no loam Other hydric soil indicators: Is the hydric soil criterion met? no Cl7 y OF t DIVISIONDIVISIONRationale: lack of chroma ENT ON Comments: HYDROLOGY � 92 . Is the area inundated? no Is the soil saturated? no Depth of water: Depth Other field evidence of surface inundation or soil saturation:to water: Is the wetland hydrology criterion met? n o Rationale: lack of saturation and inundation JURISDICTIONAL DETERMINATION AND RATIONALE Is the sample plot a wetland? no Comments: • . ‘ • • - . , • • •, ,•:1._ - r/ - . . • •.. • , •• .••• • . , , . , . . 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' ''','.;•*'5 ,...-re:',•-•-•'• - --. . • ' Nis , ., 'r:.. . - -.1---T-V-N-Ir IV''-- X . „1 Pi ::•,;:-- -,:..!..;,.:,--. ... . • '.,:'•-]7`: l'sN „.././ ;'.,iV,..P•10.',-,,Nr;,1.;: RENTON WASHINGTON g -'. • :EXH1114.1. , 1 . . .....,,,., .. .•--. .-;,- --._.......,,,,....- .., • • ,--, ,,.,,,-1 :. .,,, 7..,:,,,,,,,,..", FIRST CITY DEVELOPIGENTS CORP.. z . I . '';' -:'..,-•-.‘:! '',-•:.'-'t.T.'.J...;:L..;:•<",'., . .-• : --1:-;•.;::)....:'i-,;,f.,:: ,. \\ ' • t • Fer....7(rn i • , I. • ' . 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' itoz,),91 rti v.& --,-- _ -- - - -• , 1 , Si ai; 1 ie. ' , 9! i .,' - TRACT'X 3 . ••,` : , --1 is, -. --.!....„.. 0 , , tr ---,,,, 4%....4, ://j.V.,;. 41 kti it.' PI I' - ': ,.-4', 1,2. , ,.'[ I ' 1 l 1 u if , c ----- - ;-.• , 0 -.....• - (3.4.Lti . ___________. 0 ..:-.:,-..... ..., ' 184 - iliZIELWI, „. '. i: "1 --' ft, '..„ . 4 -.---,,, .. -.. . ....,t;_pkr,;:-. _r-, *--...;:„......-...._..:........„.. 0,--i;:, ___ -f•-,. .1,-,-..-.4.1i:A,;. j..;,,,,:.',,,.:,'.--:,, .,,,o,TRACT4,,,,,,A,,i,,,,:„., --.z.-,-• , _. ,, re-._ i..s.ei, . ---___—_------------7-„,-: -c.„ Q•t.--T- . Ac. r .1i. diTE eCAN':,,. ..:i3, -I:itr-:.,,::-;,:.'."?..'.;,.'•':IT,:-.,:::.41,,i'?..1-'4":414.3.:-/At!',11,..Ci" _ _ _ /Az, e.ty •-g...,I.?. ' :'\ : EXHIBI. -, • 4BLACKRIVER : , . . .. . OE,,,,,, 7 x't>t9ro - 17:N.: lbh: 7RCE-14°ToRNP°: RATwEAerimAoRTOK '1Existing Curb:Cut:!, GP ' 91/l' , , ,, N 7 2 FIRST CITY WASHINGTON.INC.- , , • ,.' ' a '.'0,4'.- ° : '''''''''."''' :''''''' PHASE VIII _ ';.. . z .. ' •• J..iv,.,mol000 I,00l I I lb... ', r1V-15,----1•111 :20'x 7 5' Shoreline Access Easementi ' . -'.' ••::.f SITE PLAN - taztij...., . , ','..',,,.7: W.'''r,'3•(I.,' ` . . ' - •• :,:-*:.",;',3.1.-!::li'-'.,,-....'•'..' . , • . • •. . • . L-1.'''..,.::2 Fl- • • ; • ..;'Z:;:-.,3•;-•,.<..;:;-:::'•••,:••1 , - , ., • f ERRATA SHEET 5/ " 8 C I o'' Please substitute the following paragraph for Paragraph 3, page 3-62 in the Final Environmental Impact Statement, Black River Corporate Park, Phases VII/VIII. Offensive odors could occasionally be generated from the treatment facility and extend beyond the boundaries of the site, even with Metro's proposed odor control plan. These odors most likely would come from mechanical failures, emergencies or system upsets, or, infrequently, unusual circumstances during day-to-day operations. These odors have the greatest potential for crossing Tracts A and B when the prevailing winds are from the south and southwest. 45:3 w" h ceck \ $r G • • -" ' '-'I .' 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'.•:::::: .01' _...:::::. m.o. ,........... ,,1111'..:..:•:•:•*•::::•:7:.-, Z < *,:•::::::i*:::•• 0111''..:.;:i:i::::,:':.- - le+. iicilliP' • 0 5 • 7, . x . ' s ("A ?i• .sw .. 16Tii 3' sT on , .... , . , . .• . . • .. CC.. •::'. I , .. • . ..------ . • - • 1 • , • • . ... , • . . . , •• . . • - ,- . • . • . . • -. ' 'e'4C - ' . V ' , ii ar it* t ,-- • .:‘ ':- ' w• ' . .. . , • . 100-year Flood.Zones Identified By F.E:M.A. , SIP 1 98 1 bm •:.,A*1 /10 : :". .•,- `• -''', 0 ' - -4---- • , • ir .,q , • , - . ' --2 it ' ' 4 'usSO • ',RENiToN I's 1 . . . - • , Sly ,..- 44,1181 ' .SHOPPING -, .......................................... ............. ei 77///arrifiti , V . , .................................. .,,,, „INV............. :::•:•:•.,. -it .••••••. ••• _ , , " , 46 , - oCE,,NTco-Eft ., 0 ........ •••••••••••• .\,, . .1.... ..::::::.. de ' ......... ' . ...,;...,.....„... 0......%...................... s,._61 SW . . - ....:ii:.• \ '.. • ', , Al•••••"•••: ' .. ' ' . .... 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' la-.- ----- ;,-,' .... •:::::::.:' - > ' , , , -> , .1's .4:!,...r....1-•4•?.4., , % .,... EARLINGTON • - ill< • .. - • • ..." ' INDUSTRIAL • .-1 o 1:::::::::7' 1 •,. : — "".• ' -4 4"). ' . • Z Z .u. , ,,,, N:............gm.........; _. . < AREA, , •,,' 4'..t.'&...:?1•P."..;0t. k 0 N • - 1 . MUM I.OS X ' t 17' RIVERVIEW..FANG i5.%%, •X is , .. . 'I- .....-- ST- " . A p •:....: ..c.REGIONAL PARK ,„,,..,-,x;. - -.1•• ,.. . nt. , 1 ......••••01,t.. X it% Ti ' - ". Paws o v -vz ,?‘ , 1 2 4.0 , >1 , ... 0. i'f,v,,>•,.,,,i,..7,:.1i.4.,,,,,,tr.-4.-it;,`--...: - . •D 1 -.... , 1 . , Si - . • '' -2"""ecc, • - 1 ,...'.•,s, ,q.'"'"*"•.."'.:'',•/ Renton Sewage I . _07 , lip:4 , • . S. Id — • i Y: ''.. v.`,."--",••'',",. .•C''',I4T.1,$/-1;x:•:•:. Treatment Plant I ,1 ,. . -- " -, ....,,,;43.,:8`',,,l':.<4. ,•:::::::::* N.:. -. 0 I Sp " 04- ,SI 4 / ‘•l'- ..& .1 1-.•;::-'-,";i.,q6"e•,' :::::::' lit' • , . 4( S • ....I'Ah.;,....4,%:"f . ,: ,_. ____ • _______..---------= , .1 "405 •i:i., *.,1',,,..'.• .::.iiif-' . %JO 1:.: ,,,, ::::.: ' ,•::::•::: • .0 • .,:,:, ,D.01914.,.:aiii:'::::':•:%:::•:*;•:':::::' . ' /0100,0111: 1111116 • '•::::,...-.....::::::i:"' z , w ••••:•::::::::::i*:, .!z : • _< ow, ...,:?::::::•'-'' \ 0 t'so*. ., 0 ' 5 . /e' . , •:•• # , I I ., • . ' i . - . . , i y I .'I . 1-007- ear Flood Zones Identified B ,F.E.M.A. - '• • v 1987 3R° ._ • sip, sw -SUNe'� RhIQN' 1 H ��, 0,�' ',CENTER ‘....."‘"..-."-....N:\, :.k.:.:_.: .. .... . . • �, .� ............................................................... �; ...1 \ -s sw :.s ...:ii:. ' . '....-.- ----4.1W. .,............................. ii::::::::::: ':::' . ,.........................7... - '' .--77-*"..., L '-; - . '• -,....• ' i v;....... .•. iii.:i:., . . t Sr . ::. . , _ „.... ; i . ....". :.....::::::::::::::: .. ,... - _.• ... SW 2•7TI1• ST r: N'F".; 4• r'i :::::::::::::::' ,� • N • W W: 3 < w L.- 1414; s.1 O>, >. < , `':.::: '34; 1.;y.. .: • ,, N, •.•.. < ,- i < . EARLINGTON.'.• / ,1 :s+� ? �' •. 22 ' • y : fLNOUSTRIAI_ w<,_. �:*�, �: ',, pN :� . < : AREA , 1Y .RIYERYIEH.FARNS'� .` a t. I ! S : ° 4i rf ' 4?" � .1.i 4,' � , 1. "Renton Sewage i o•: , ST ti r Treatment PlantI WAY ; ® �, Spur -e----,-i--a;j7ii-1'—, 'zo . •.1,. ti•s. ; '.,. :*., 1 - Otte ig 1310 i ._____<_:—' _.-1,4 4iv414 ii, liipi: f i SW' l6TN' ST. 41) ' . : f • 100-year Flopd Zones Identified By:,F.E.M.A. • �S W . . `` ..= sw :S : . SW. SUNS NTgN . . _ q3 SNAPPING. ::::::::::::......:::::::I \,. ® r:pe' ; :CENT.ER' . i 4k.', �� :Sr i • • r T ST ■� �. • :� - W 'gyp •SSt(k n 'ir`•. .:.....a 'W �n '�t . ..... :. ::.`' � 94... .gNs{ `r��. • p <.. i •- < EARLINGT:QN: , ,,M,a �;•� tY •:::;num ''o I • - _INDUSTRIAL • • - • .. • w..*.�� *•1''�..;,..- - t• E e � 1 . - ' ' " :,-1' : . . _ AREA . _ Y ', jj R '.RIYERYIEM..F t . I' , . m ,3 St. - - + I - .t INEOIONAL`MRK `. - -1 t ' - i 3. : , ._ OZN >a _ v�,�,e j;,•' .. ., �� +irz Renton Sewage, 1 ;r . Treatment-Plant W1►'f > • ��1r~ , x t I co VI T < JL--41 �,: 3114 1-405 ` �.- Pt �P, 5 ,•I 1 •gN_ �P _Z. m o , Yo - - rqp;. O ZZ .. z < g 4u k' MQS l Q 3R0 i 6� T Op a' 4 ; ...R 1OO-year. Flood Zones Identified By F.E.M.A. q 1983 ��,,- . ozc . pc �CS 4o' rti = irk :UN3`c ' ' `RENTON •• ` -: : IEEEs: p SkS i I e 6 r SW : i :EEE: x S e • jy SHOPPING'01:: ,. E: E: :EIE :E :E• p ,; } s _ rleri_ h: . : E:E: IEEEIIIE'• .1:........11:\... cEHrER • •:... :: I : I : : ' NM :Ur di .%:.\\.%.•,.........„..........1" ...;i„ •°•.. '. '.1; 1:k ...." " .....:::::XEW' '4.110,1444%\ tri •- SW ' 2 7TH 4 ST 3 _ 4%*., ::jai:.. y y la > cn T •' IC N ,g , a<♦ I > EARLINGTO • N � 'v�a ' Y'`�♦ =Z i v,. _INDUSTRIAL" • '--:.�y..� r _.*i` - ;" & o^ , J c AREA , ';174 RIYERYIEW.FARMS'-. 1 J Si REGIONAL PARK �♦♦ I 3 M lotµ >1 1' t PROPOSED ca ♦ • ^ I:•• • g F- �t r4 N :ti .� e ,: 14' '�i3`? S Renton Sewage I ;e • ' •�,,,�,t.K.J:� �">�.. �" :.tik<r�n' `; Treatment Plant I w�►Y' ; h ST W :04c �•� �. ,, � e,;•' i Z. ', x ti I t ,I • a aW H St IC t/ II .. ::.,..„„,....,..,„. .::::. • . . . .:..,.'e.,/,:!..;04 ..::::. •••. • IC S W d Z Ir. 16TH ST dia • eti� sw -1 m. � < , q '3R0 100-Year Flood Zones Identified By F.E.M:A, • 3 _.' -Ees" s ° i=:1::1�E� @EEE1, . .' , , , ,' ...is,O.O—O OO.-NOO-O . '81r-'.4' ' - ' _ N ' 1 RENTON•:---- SHOPPING. 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'; k.;...-K -t.bavit44,4,., •1 1 1 i 1 ri--- . , . - III" . •i.a.:.,,..,: . 1 0 . is 0;1. 1 :',--k-•-•..-itza. ,1, _ • ' I � M, I � i� �1 ,�7�1;/i , JE4er it,,,,t, ./. 4.%-'".-A.s,..7o,pl„)i,l I ••••'I!I ii J -7'i1i 1 yar , �e F + 1,)1 1 al;U f + ill I ....„. - ''. ::`,Lk;;,,:. .., _,XL_':,:a';'-_Ii. ' ‘ . I ti.`, ,.• r ter • Jt`._. .... \6” \ / j 'Cat• 1 I , 9 ��� 1 1 I c..3I .{i S•Vietr t Iv M F T , Q 1 I i ., 1 • j ' ! • c , r R�ZONE: ALTERRA CORPORATION, File R-129-00 - i • APPLICANT Alterra Corpo"ration TOTAL AREA ¢21 acres ,_ PRINCIPAL ACCESS Via S.V. 7th and Powell Ave. S.W. extension . ._ EXISTING ZONING G-1, General Classification District EXISTING USE Reparian Forest " PROPOSED USE Future warehouse and office use. COMPREHENSIVE LAND USE PLAN Manufacturing Park, Greenbelt - • , COMMENTS - „ _ - — EXHIBIT = 98'3 ZONING 4 - =,[,, , .... . . . .. .. _„..„ . .„.. . . ..._ , - , . TRT:,-- '\', -Z.-,61 111 G- . ' . . . , , . . 1,. ,_,_t ' 1 .j.:-,1;„ : - --:---'$-_-., 1 . 11 i 11 I 31 -i--Th.......L. I . .....' :.,...Z-.,..:.--- -. • • - -• • --tO,.. Tin:1 I - ' -: - . 'Irr''•• 'ci-- 141.: - ",' , . :4.:', . . . , -Ei. • . t. -. 7 :-:, ;,,,ii,..` i I .._ 4 z C' - l' . ' . It -•V'' 'Iti 1114 14-'1' - - : . '',.. ''l',' . '' :..,,.4*-:-.-_f,v-,;;----z ji--..,.: •." • '`I'l- ''..:1!' t - , : C ,,,, 11 ''--° JE. ?cr ,41..,..' '',-.-,', il,f-',.*Q•17,71,7„.c ,4,...k.gt ——,--. ) . 1 • . -.: i‘.!-.40,v,fty7z7/2,T,_'''.:4',/,'• ;--,,,. ..- : - . t .- .6):.7V i'. . ..: __,,, 1 , • '. .....t. '1 -- 0- .f, •" . ,,-,....,,,..,,„:- . ...1 - ,._ ''.444, i,ly i ' iitiii ' "Prollif . M. •,77''',ii,,,,,, --i .: ' ',_ _ •71"----,,,':'. :i. . -,n, : .. ,1:'• ..,Fat, 1 I ' .• p.-' ' ilitti4 i i 1 G-1, I, :: ',,.,. ,. Fla..,5„;c7,-: , A:4 W •!' 1:-.)! 1 1,,,up , 4110, 1 i 1 , t''' :i. ''.r,' ',1);: : :,N .•A, 041 , i ' ' 11 ' ' , . :,' ' I; ;, -1::., :.., , ,::...-g:,3j4.4, ,r-41, . • ,---, i , ; -,,.,;,"!,40-$„, , • i-1/ i.,,,, . " 11/?.-'17•-*:41,,vAr 1 i _ : ...---\ ., _._r'. .f... „... 0.t.e!1-4‘,..--sit; ', 12-Pb. , . „ker.--if'•• • 1.,- \....-Ny — I .i •:,,..-... -- - . - - .- - : .''-1 \,:71\ i:.•-•.,,,A--.1.,-.. ..t‹,, 1 ,I.. . . • . . (4`4'41,12.?atria t.. ` % -: . . - --_. -.- % \ . . t, . I 4.. ‘. •-•.",--r--N.,,,-;:::::.,:`, 1 Vi.,...--.""t.• ' • 11 \ ..... .•• , I: 1 ..\N. . 1 .. \ \ .. •'' -.' . \ .,.........'..: %... ',..,!, .1:••••—•4L--..... , .. : • 1 rl : • 1. • ' -\ , II , .r- 1 r ,, 6 -,- . . . . . \• , t If \ ' 1 1 .• : ;z•!, 1 -,... •p•:‘% • I I .7, .- M T 'T tz • ‘ % I :i ,I. I ...-1,115e..-"..• " . . ,, . • . - ! . . — " - • ....-.:-..:...—::..:-..:-..'-.... -;-- .-....;,... .-.... ...:....„„.....„-,-;- ! - . -r REZONE:- ALTER1:1A CORPORATION, File P.7129"80 - . , - . . , , . . . , . APPLICANT . Alte/7aC°±1)° ti°-1.-------------1 .6TAL, ;AREA .... .. 71 acres PRINCIPAL ACCESS Via S.W. 7th and Powell Ave. S.W. EXISTING ZONING G-1, General Classification District _ ._ ... . EXISTING USE Reparian Forest - , — , . . PROPOSED USE Future warehouse and officd use. . . . . COMPREHENSIVE LAND USE PLAN Manufacturin Park Greenbelt; . , . COMENTS . . . . „ ._ . _ _ _ •,_ _ - _ EXHIBIT, , . -. : -A2 : PRE f983 ZONING . .I '00r AEv., brooD S.O.VI•E8 I=DEI1lIEIED -eA- 4--E' Ili:'}d;' ',a .a8 J� ,�,'• EXHIBI.L C' ,,, , rr '0. :S i t` �t •j 'WSJf ,Aba5•y Yy ':f. .,rf�., '%��"�. '";:•:. C �� L .s\ti}:'•t+. :r ti..)'Trr�O WR �Z'%S"�;t. td," / i l't ,, ' • 1 ••• cl) :::r .. 2 3VA ... ...... . ... t Q' " ••t • ,:r E )011P-014.41''''' tali- ........ ONE r ,,,.. 4`• • ' I' ' ( ',' , \ eei :::: g rCti0 • � . • QO ' ---- _ F . - W2 . 3VA JJ3W09' _ waq� a. 3 ti �. sAµ0y{S �.un:.... • N ... W2 3VA' ''2AMOHT I . F �jV A N .. - • . \\ , , ., . . , . . . , W ` . . fn. . 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'\ ..-•", . • . . • ...-•"' • .. . • •• : . . • •• , ... )1 .1 "1/ .• • . / ...,• ..Z '2 t ,‘‘.• .4"...-•';,./.. .,...,,,,..,,.,. .•' ..,_ • • 0.. i t• ..e...• -s -- } j . . 1 ,_.•--.. - ,... ''..Y.'.. : . ,. A:/-.'%' . ,--• ,.: . .,. ,,- •.1 1 ;• • . .. . • , ..,......- • / •.C..". / / . - ..,,....i.C,-• ., . . •• - . ,... • 1 ) ...). ' • V-, / .., ,..:). . ----........,...„.....:,._,....-----... . . .• • . `. I?) ..i '.,.' (1).' . ", ,l',...CC.,• •'6`-.A-, / . • . .,, _ • , . ., ,a,...,,,co• •-.7,... / . ...La,...), -.. ..?../,',.f.;7::: •, -.'.2.•.. • a • cn •...,,,,,,,,.. , ,,,.:::,.. „,:,..... ,. .._ , . • , , , , , ... 17-•-. ,. .... ,,,S, , '. ,,i .., , 1.4. • cd:0.77' /it 72700.-• . / j ,./.... ,... V . •...,„ ... ,.. 4, • . ) V.. ''''...• ..........".......... et .. , . „-.......--. -I A • 4 r'- -1.------ 0 . st•,kr rt,I,2 PS. 11•1055 I.VI • .:„,,,-/' I' s .I'. , IMMO • ;:-.'.-- '.'\. .•' ' • ‘: ' O :.i ff '. • ai, ' • - •- . . • . o t.)'''''c'' \ . - , CD • . ' ' . . '.. .. .. .:'-'''---%- \'. fro ro a. .1a2.______Fa•o_,.._,D ow. ', 7= _- --11 -• ..,f_ 1 . . ,.,..„.-- ...•„...- . ..• ul-iiii Aire ,. -.... . ,•• • • , . . BEGINNING OF FILE FILE 7171E Av. g'9`-/o? r 24 November 1990 Mary Lynne Myer Senior Environmental Planner PLANNING DIVISION Dept. of Community Development CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 NOV 2 9 1990 Subject: Blackriver Riparian Forest and Heron Rookery Dear Ms. Myer, One evening earlier this month I was traveling in my car on the dead end road that runs between the west bank of the Cedar River and Renton Municipal Airport. It was raining and the river was close to overflowing. Within 100 feet of the airplane hangars and across from the tie down spots, between the road and the river (a distance of about two feet), stood a mature heron. It did not move from its spot when I drove by the first time. On my return trip a minute later the bird had changed position. Because of the curve in the road I could not help but shine my head lights directly on the heron. This caused it to take flight and go upstream. I offer this story because it "sheds light" on the heart of the problem with the proposed Blackriver development. The heart of the problem is whether the city government of Renton prefers the development of buildings and the revenues they generate or the preservation and nurturing of wildlife within its city limits. In the past decade, in which the majority of my work life has been located within one mile of the proposed site, it is evident by visual inspection of the surrounding area that the city's preference lies in development. The majority of the development in the area has been on land once occupied by the Earlington Golf Course. Only within the last three years has the adjacent woodlands to the north of the old golf course been cut down for development. In the case of the Blackriver development, where some of the wildlife involved are herons, the two preferences are mutually exclusive. Herons are disturbed by the presence of humans and their machinery. They are not like the "friendlier" ducks, coots, Canada geese and sea gulls which grace the Cedar River and Lake Washington and some of which use the P-1 pond. These animals seem to have the ability to ignore humans. This is not the case with herons. The proposed Blackriver development would be a terrible disturbance of the herons. The herons would be driven away by the noise and activity of construction as well as by the glare, noise, congestion and interference once the completed buildings become fully operational and occupied. The privacy they used to enjoy will be destroyed. If the nesting site of the herons is to be preserved there must be a buffer zone to keep it separate from any human development. I have no scientific knowledge of the tolerance level of herons toward humans. If the experience I have had is any indication (in addition to that given in the first paragraph above), their tolerance level is very low. My guess is that the proper size of the buffer zone should be as large as the total area in which the developers wish to build. If it were for me to decide I would not grant the developers any opportunity to complete their plans. My bases for this decision are the following: 1 ) Religious: Belief in God from Judeo-Christian traditions, where loving your neighbor as yourself includes all of God's creation, not just humans - all of God's creation should be given an opportunity for life; t 2 ) Ecological: While humans do not depend on herons in the same fashion as other wildlife, the loss of heron habitat will be a loss to humans also as time goes on; j 3 ) Legal: The developers did not acquire the proper permits before clearing some of the land in question - what justice has been served by this act? 4 ) Economic: There are several areas much closer to downtown Renton where such development could take place, e.g., the area near the Payless store where shops have been going out of business in recent years - this should be revitalized instead of using land which would be developed for the'first time; 5 ) Geographical: Land throughout the valley which animals such as herons have used for breeding and raising young have been taken for human use at a very rapid rate during the past decade - This Must STOP! I have gone to some length in this letter to voice my opinion because I will not be able to attend the December 4th hearing on the Blackriver Riparian Forest and Heron Rookery. I will be out of town on business. I realize I am not a constituent of the city of Renton and do not have voting influence. I only work here. However, the wildlife do live within the city limits - some only part of the time - and do not have voting influence either. My needs from the city have been met. I would appreciate it if the city of Renton would grant the privacy'needs of the herons. Thank you for this opportunity. • Yours sincerely, J. A. Matter 2566 24th Avenue West Seattle, WA 98199 Work phone: 393-3918 J f� 11441 [*.2 25USA 2�(o60 2174 114 AVE Ut) � ���� 11 fig!`l q tcnv n i930 4/4Ry 40/VC n1YEk 5el)ibR r lUv12tiJMcM P1440010 , Dcfrr, OF GO I04ATy pM Z' e2.t D IL1.l..L i9vv. s , . sh - r09 -81 1 .. catk vt -6) '14_ ftittes1 eatqc etAt. rlAe,plut s d -1L bLL I ct, s 14.624,1;fer-zr a fi'cuLr t& C A i. 'JO . ( G<a.ve� sue- vtn V will Life. ‘ s &C`(' us. Plea atoelarALT kteau-1 len strct- a- c cilia, L60 i(r,--itte--QA. h'l owe._-t�.aSrco be, s s , . P.�� '► eel__ f NAitAkca if a „(,,lath'ly `l'it Ms . Mary Lynne Myer, Senior Environmental PlannenANNING DIVISION Dept. of Community Development CITY OF RENTON The City of Renton 200 Mill Avenue South MAY 3 1 1990 Renton, WA 98055 �p May 23 , 1990 `'EC I E D Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, 622 ��) / sit N cook- t-1Ac_r�.-y �ZZ.S i f/s T> 1J • �8 o53 a --4p8o Please note : To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including " city, state, and zip code) , and home telephone number. I r---c a June 3, 1990 Ms. Mary Lynne Myer, Senior Environmental Planner Department of Community Development PLANNING DIVISION City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 JUN - 6 1990 Dear Ms. Myer, RECEIVE it I have a number of concerns about the proposed Black River Corporate Park development and the draft environmental impact statement dated April 1990. In my opinion, the welfare of the blue heron nesting grounds should take precedence over this development. As a resident on Lake Washington visited daily by one or more herons to fish off of our dock, I feel strongly that preservation of these magnificent birds should be our highest priority. I do not want this nesting ground to suffer as a result of the proposed development. I hope it is within your power and responsibility to accomplish this. My concerns with the proposed development are: a) Placement of the buildings and parking areas are too close to the heron nests. b) Without adequate buffering, the herons and other wildlife will be disturbed by movement, noise, deteriorating air and water quality, and possibly reflective glare off of buildings and automobiles. There is a high likelyhood that this intrusion into the heron's habitat will cause them to leave. c) Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration of this urgent issue. incerely, Paul D. Shafer °ld , 441/4 65 I/ 11230 Rainier Avenue South Seattle, WA 98178 (206) 772-1902 \-1! Ms. Mary Lynne Myer, Senior Environmental PlaneLANNING DIVISION r Dept. of Community Development CITYOFRENTON DIVISI The City of Renton 200 Mill Avenue South Renton, WA 98055 JUN - 7 1990 May 23 , 1990 riECEWED Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990 . I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry . o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife . Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, 0SS� (2o ,) -77 f3 Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including city, state, and zip code) , and home telephone number. lik\ • • Ms . Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development The City of Renton 200 Mill Avenue South Renton, WA 98055 PLANNING DIVISION CITY OF RENT ON May 23, 1990 Dear Ms . Myer, Jl1N P 7 1990 This letter is in regard to the Blackriver Corporate Palrk.0 v 11' I draft Environmental Impact Statement, dated April 1990 . I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, IL(!) S. W. "SWAN" MURPHY 923 N. 28th Place Renton, WA 98056 Ph. (206)228-7268 y PLANNING DIVISION CITY OF RENTOPA 5 l 3 i I y.v �5.. EO¢9E �J VV. �12Ene�+E'L JUN - 6 11'4'9 aonE2 OTUE' A G. •Enton, (Wasfiin9Eon 98050''6 t Ph_ 5 5 - 1 1 9 Vwc„,)- l .1.-.—cLA- A, +NI, 1/41%-AZ.:LA3 uutk.4, <,-Q " G` 14.114 - 414 nti 4-"4-vac; ; C ? - „ ; °—J-t o-c�e.v�'� , PLC- k. LU- vi* s 4 - J3LN-cKv -0-P3-4-LA+ eq•-A 0—C./(11/4.42- 1 vtn. �,,��. �,�. - or a4 k.-1. :31-.. " (c./23. 1 w�/V L __ _ A2�i v. Is 3 o- _ ram__ fosemi` ys_. r . jtvi,i,i& nii...i.., i. Q..),.. „,‘ ,..., . 1 All'El. 'g£0T9E. -1/V. . CSIIE12.CET . . 1809 , 012.£5. G4VE. eAl.. E. cl?aizLotz, (1/1/algington. 9805? (D ........ , ..: . . . I i ..,1. . . ., ,...._ -, ' (T Ms . Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development PLANNING DIVISION The City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 MAY 3 ? 1990 May 23, 1990 RECEWED Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, 6 Ajj w A . Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including ' city, state, and zip code) , and home telephone number. MIL :p Ms . Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development pLgNNINGDIVISION The City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 MAY ` 1 1990 May 23 , 1990 RECEIVED Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement , dated April 1990. I have a number of concerns about the proposed development . Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, - and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please' keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue . Sincerely, a 0 3 so a �'� 0-U l0 � yr,,�S-G�-GcJ q 8 6 3 85� 03 61 PLANNING DIVISION \ ���9TATgO� CITY OF RENTON 41 JUN a 0 1990 144 1889 Y STATE OF WASHINGTON RECEIVE* DEPARTMENT OF ECOLOGY Mail Stop PV-11 • Olympia, Washington 98504-8711 • (206) 459-6000 May 31, 1990 Ms. Mary Lynne Myer, Project Manager Community Development Department Renton City Hall 200 Mill Avenue S Renton, WA 98055 Dear Ms. Myer: We had two additional notes to add to the Department of Ecology comment letter of May 25, 1990 on the Black River Corporate Park DEIS: "WETLAND IMPACTS" should be SHORELAND/WETLAND IMPACTS Also, if you have any questions on Shorelands or Wetlands issues, please direct them to Terra Prodan at 438-7106, as the Shorelands coordinator on this proposal. Sincerely, /PA, • Terra Prodan Shorelands Specialist Shorelands and Coastal Zone Management Program TP:dh 3 o BTATg 0 __ State of Washington L _ -�. s DEPARTMENT OF ECOLOGY �v7ti� � °yn P 'Olympia,WA 98504-8711 isss� �'JUN I°90 -1 S•POSlAGE +='; i. 45107 n5 4 x i Ms. Mary Lynne Myer, Project Manager Community Development Department Renton City Hall 200 Mill Avenue S Renton, WA 98055 • 17OZ /)4ot's / rz S , a j-io Wa.skt4Vat 1cf0S Q0c0- a3S - 1713 /Vlctizd / /9I s. AAA 1 n Vie /M e r►c17k- Cinvir6v1 PLANNING DIVISION CITY OF RENTON MAY 31 1990 ;too AC I t o tAe. SO4` A- RECEIVED �i41svk. ci8-6ES ..L - (,,.)NC: OLA._ AD veSS "it 'ce v IA- edvt ee�rv�5 reeyAre;4.v�c .1 ro`osc c dl¢At C Lit trikelAt )(1mz.. 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Roo rfry tt fitrumt_Le._ -•A..e.,0,3-0-1,1 CLict5 /e(3Sb • ,; s tt4T OF �'"-= ' United States Department of the Interior o �.:m „ �� FISH AND WILDLIFE SERVICE 3 ,Be Fish and Wildlife Enhancement 2625 Parkmont Lane SW, Bldg B Olympia, Washington 98502 206/753-9440 FTS 434-9440 May 29, 1990 PLANNING DIVISION CITY OF PENTON Mary Lynn Myer MAY 3 9 1990 Department of Community Development City of Renton • E E D 200 Mill Avenue Renton, Washington 98055 Re: Blackriver Corporate Park, Tracts A and B Office Buildings- Draft Environmental Impact Statement Dear Ms. Myer: The U.S. Fish and Wildlife Service (Service) has reviewed the above referenced draft environmental impact statement. The following comments are provided for your consideration when preparing the final document. Potential project impacts to resources of concern to the Service have been addressed in the draft document. The conclusion that the adjacent great blue heron rookery would not be disturbed if the proposed development guidelines are implemented is not supported in the draft document nor in appendix B. Consequently, potential impacts from the project may be more severe than assessed. GENERAL COMMENTS Unique Terrestrial Resources The proposed project lies as close as 350 feet to the Blackriver great blue heron rookery. This rookery has been establishing in a rapidly developing urban valley. With increasing development, there are greater disturbances to the rookery and more restrictions on feeding areas. The extent to which a project may impact nesting great blue herons may be due to site specific conditions such as height of nests in trees, year-round foliage in nesting and buffer trees, height of buildings or other structures relative to the height of nests, and many other factors. These factors at the project site have been considered in the draft document. Even with all known factors considered, great blue herons in similar situations may still react differently. Whereas some rookeries may not be disturbed by a particular activity, this same activity at another rookery may be enough disturbance to cause the herons to abandon the site. Appendix B described several projects in the Pacific Northwest where successful rookeries are close to human and industrial activities. Each of these situations has, circumstances different from the proposed project. There , is not sufficient justification to conclude that the rookery near the proposed Blackriver Corporate Park would continue to be successful simply because other rookeries have appeared to co-exist with development activities. The proposed project has the °potential to create a significant disturbance to the Biackriver heron rookery'. Impacts from the office building development would be permanent and ongoing, not one-time-only events such as logging (an activity which occurred near this rookery previously). The proposal includes construction of surface parking lots to within 400 feet ' of the rookery. This would introduce year-round, day-long, human and automobile disturbance. Use of the office buildings would introduce permanent activity, with people moving in and out throughout the days. The closest office buildings and the parking garage'would be within 600 to 700 feet of the rookery. This is within the 750-foot buffer zone that is recommended by Washington Department of Wildlife's management guidelines. The. proposed seven story office building would reach the same elevation as the heron. nests. There are no trees that could act as a visual buffer between this seven story building and the nests. , Any buffer trees planted during project construction would not reach this height for many years. To avoid the risks of disturbing this rookery to the point of failure, decline, or abandonment, the Service recommends that the maximum set-backs recommended in the Department of Wildlife's great blue heron management guidelines be implemented for this project: No human activity should be initiated at any time of the year 'within 750 feet of any . nesting tree. This includes the construction and use of office buildings, parking garages, parking lots, and recreational trails. There should be no exterior construction or new activity within one-quarter mile of a rookery during the nesting season (January 1 - through August 1 of any year). SUMMARY COMMENTS . ' The. great blue heron is a migratory bird, protected from take, capture or kill under the Migratory Bird Treaty Act. Disturbance of great blue herons and great blue heron rookeries should be avoided. The proposed project has the potential to significantly disturb the adjacent Blackriver great blue' heron rookery. It may: create enough disturbance to cause abandonment of the rookery,. ' Potential 'sites, within the valley to which this heron rookery could ' relocate are limited. The great ' blue heron population within the Blackriver'valley may be adversely affected as a result. To minimize this disturbance, ' the 'aforementioned maximum development set- backs should be incorporated into the project plan. 'Implementing these set- backs would entail. some=re-designingof the development." :+2 • • • • If ::• 1 • :7 t, .."1; ,117,P7•111, pOdt77.... P , Qt s'';*:I •-,k; t•H:r ,;!:-C.E! (•""); '; Fa.":1 •::; - or v..; i..;00r-‘7•7 ; 4.:0 . 1 1;;;•;,:. ;07 *.Ft !'1 ,;i7I) 1,1';"e -13„1-.) ;VC' 6.) , 1. , r fj-!•;•.' r; : 0-. Lic„. f fa 1; 1:(-.;: • OJ . f p .1..q -,0 :::;; 014 , • i•. rill !A.?, L 7 ;:". <•, ery -;.' t I7C b0_ ‘;.r.• • 7 4 -! :• T.(4" ; 1,7 '11 I 11 DP:F. ; •1._c. 1.. • 71; 7•TO 1 ; pi!"?`..T.V ti r;"1 ilY"" 1":'•,,.2 ;13 1..1; I 1.1! 1:07.; i • I t."(•'• ,:' ; ;" Tun zr: • - • i• • OL • ' • ••;_i ' •.: :"; ; <::'4." Cf: c.te, 1 pi • pr..f.,,,cv „re Of;r ;;;!* i•At.'•?3, 1.!Jr; C.1.; , •- 001.- f F ,,• 1,, r,;-• 7,.7 ; 11 1":11...r jfloo Cf ' , j_T ;; ; )1;;.' .c.1 ..,01-1;4 (!e. •'ti1..147i n Li• • . ,r. LI, f3) ,;011 ;,-.; I ,tyri , ( „r-v :'3* T ,,11 0 1, r ;ij • • - J„'; r ri• !,)1_ hi.,4 :3 C . z':-; ••- r pri p C . -fi OP (7,;(Ji1„ 17(1(. ; :.%1Yr; 1..1• [.. • ".• :IP, - • . . • . . • We appreciate notification of this project and the opportunity to comment. Please call Ann Remsberg at the letterhead phone/address if you have any questions concerning these comments or if the Service can offer technical assistance in the development of the final project plan. Sincerely, afiLat ancy Gloman Acting Field Supervisor . AR:fs c: WDW (Muller) WDW (Nongame) ' 3 UNITED STATES Q\A Wq • = u- -- DEPARTMENT OF THE INTERIOR ,' - FISH AND WILDLIFE SERVICE c PM ECOLOGICAL SERVICES f 2625 Parkmont Lane, S.W., Bldg. B-3 30 MAY A Olympia,WA 98502 4990 ` ._,. I ' OFFICIAL BUSINESS POSTAGE AND FEES PAID PENALTY FOR PRIVATE USE,$300 INT-423 >lary Lynn Myer --.Dept. of Community Development City of Renton 200 Mill Ave. Renton, WA 98055 ID 44 I!! Ms. Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development pLANNINGDIVISION The City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 MAY 3 1 1990 May 23 , 1990 .<EC W D Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take. place at the site. Thank you for your consideration to this urgent issue. Sincerely, (T:-) Ic� LB J . 3(25� Ketu-ro ) \AJ A cl V° E4 s Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including ' city, state, and zip code) , and home telephone number. 1 2011 Evergreen Point Road Bellevue, WA 98004 May 25, 1990 PLANNING DIVISION CITY OF RENTON Mary Lynn Myer, Senior Environmental Planner Dept. of Community Development MAY 3 0 1990 200 Mill Avenue South Renton, WA 98005 R CE1VED To Ms. Myer and the other Officials of the City of Renton: I am extremely concerned about the adverse impact of the Blackriver Corporate Park, Tracts A and B. Appreciation of the significance, ecologically and esthetically, of this unique, prime area of wildlife and beauty, is of utmost importance. Once this importance is established and recognized, the adverse impact of the proposed development is clear. Also clear is the fact that if you, the Officials of the City of Renton, allow such development to proceed, you will be (1) acting contrary to your own policies in the Comprehensive Plan (CP), (2) acting con- trary to policies of the Green River Valley Policy Plan (GRPP), (3) acting con- trary to the Comprehensive Park and Recreation Plan (CPRP), (4) acting contrary to the Renton Environmental Ordinance (SEPA) , and (5) acting contrary to Washing- ton Administrative Code (WAC) . You will be letting down the citizens of Renton who trust you to abide by these policies, which are reasonable, far-sighted, admirable, and necessary to the quality of life for present and future generations. If I were you, I would think long and hard before doing these things. A visit to the site, including a walk beside P-1 Pond, will convince any environmentally sensitive person of the need to preserve this site. (Those who are not sensitive to the beauty of open spaces and wildlife will not understand. But didn't the last King County election show clearly the feelings of the majority? It did. ) I strongly urge everyone involved in decisions re. this project to visit this inspiring place. I think the best way is to take a lunch from a nearby deli, walk along City property by the bank of the channel and pond, find a good spot to eat your lunch, and enjoy feeling like you are far out in the country. It truly is amazing, but you can't really appreciate it until you have spent a little time there. I think you have the authority and reasons, based upon the above mentioned policies, to deny this development altogether. I do not thi4k the adverse impact can be mitigated. If you nevertheless allow work to proceed, a buffer of at least 1000 feet from the nesting trees and 200 feet from the channel is necessary. Even then you will be risking the loss of the rookery. That said, I will proceed to point out some specific objections I have to the DEIS. They are as follows: ' -2- Page 1-4 * Not enough detail re. runoff to P-1 Pond and Channel ( amount and quality and duration) * I doubt the sedimentation would be "insignificant." * Loss of 11.6 acres of shrub/vegetation and wildlife habitat cannot be mitigated. Please verify the figure, 11.6. * Not "minor" but major inconsistencies with CP ( p. 7:of Hearing Examiner's Report -HER- of June 9, 1987) Table 1-2 * Fill has impact of destroying grass/shrub vegetation which is home for many animals and birds and is an important part of the ecosystem of this "unique and irreplaceable. . .critical" habitat. (Wash. Dept. of Game) * Driving piles is disturbing to wildlife. It must not be allowed. * How can there be no impact on air quality when 791 cars would be coming and going? * The changed surface water movement must be detailed. It cannot help but have impact on the wetland and nesting and feeding areas. * The grass/shrub area is very important to the beauty and feeling of the site. All species present are important to it. Should it be destroyed just because the species present are not endangered? Certainly, areas such as these are endangered! * Heron protection guidelines are inadequate! According to the thorough research done for the HER, "Four agencies with expertise in environmental matters have indicated that mere restraint during this nesting season will not assure the preservation of the resource. These agencies all indi- catAthat a more permanent window, one of distance, and not solely of of time, is required. The distance is really not disputed - it is gen- erally agreed that approximately 600 feet where a vegetative buffer already exists, and approximately 1,000 feet where the vegetative buffer is minimal, are the minimum distances required. " The buffer on both Tracts is minimal, since the trees remaining on Tract B are deciduous. Therefore, the setbacks on bok h - Tracts should be a minimum of 1,000 feet from the nesting trees to have a chance of saving the heron rookery. * No construction activities should occur between Jan. 15 and Aug. 1', * Mitigating plantings of trees should be tall enough to obscure build- ings before construction. Just planting young trees does not create a buffer! Four story buildings are much taller than 20 feet! The whole "buffer" plan is a joke. -3- * I have seen herons coming and going from many directions. They do not appear to use a certain "flight zone". * The relationship to existing and potential land use should be carefully addressed. Walking or having lunch by the pond would be adversely impacted by the presence of all those buildings and cars. The cars will add: distracting noise and fumes. The feeling of peace and inspiration one feels due to the beautiful naturalness of the whole site would be destroyed. The potential for a truly outstanding natural park must not be under- estimated. ba * The "dense evergreen vegetative screen" appears toA made up of deciduous plants which would be bare much of the year. (Figure 2-3) . * Since this site was special to Indians and artifacts have been found here, it cannot be true that there is no significant impact. I feel this issue is being (sadly) ignored. * Not consistent with plans and policies mentioned above. Table 1-3 * The same comments re. fill, pilings, "buffers". * The use of the word "should" in many places does not sound definite enough. (See Air Quality, for example. ) * Inconsistent with plans and policies. * Same comments as above re. loss of grass/shrub/cottonwood -- 9.3 more acres. (Please verify number. ) * Planting additional trees will not mitigate the loss of this additional wildlife habitat. * Again, all development must be at least 1,000 feet away from the rookery. * Buffer trees must be tall enough to hide buildings from the rookery -- before construction begins. * Again, herons do not stick to a certain flight zone. As development goes on in the Valley and other areas, feeding places will change anyway. * No construction between Jan 15 and Aug. 1. * Walking and jogging should not be allowed within 1,000 feet of the rookery during the same period. * The buildings should limited to the height which can be effectively screened from the rookery by buffer trees. * Parking garage hasn't been designed yet. Design of garage and lighting and exhaust and exits and screening need to be detailed. How can light and glare be the same as Tract A? * I feel the increased use of City Parks facilities would be mostly by the workers in the new offices; whereas, a natural park at the site would be -4- enjoyed by many more Renton citizens, as well as people from the greater Seattle area and beyond. Additional comments * The losses and adverse impacts described on 1-15 and 1-16 are reason enough to deny the development proposed. * I disagree with the last sentence on 1-16. The whole water shoreline, islands, wetland, and grasslands contribute to the ideal heron environ- ment Renton now has. (You can't buy that! ) It has not been spelled out how, exactly, each one of these factors will be changed, but we know they all will. * According to HER, The Wash. Dept. of Game recommends that "All wetlands would be preserved, along with buffer zones as follows: 100 feet around intermittently flooded wetlands, 200 feet around all other permanent surface water. These are to protect the feeding areas for herons and nesting/feeding areas for waterfowl." According to the HER, "This buffer was also suggested by the Federal and State agencies and is reason- able. The record reflects that development within the suggested buffer zones will have an effect on the birds." Beyond the 1,000 foot zone for the rookery trees, there should be at least a 200 foot buffer along the P-1 Channel, and mature screening in place before construction. * The allowing of filling in Tracts A and B was an environmental mistake. -- contrary to Renton's policies. Therefore, that fill should not be allowed to be an excuse. for further mistakes. * I am disturbed by the amount of silt that is allowed to enter P-1 Channel and Pond. Renton has such a wonderful wildlife habitat now. It would be a shame to lose it. Please do what is necessary to maintain the little remaining wetland and the other conditions supporting the wildlife there. The word, "fragile", should be taken seriously here. * On a recent visit, my brother (former Supervisor of the Salmon National Forest), his wife, and I counted fifteen species of water-related birds. My Salmon, Idaho, relatives couldn't believe there was such a beautiful, natural spot in a city. * All surface water impacts must be analyzed in terms of a 100-year storm. * Re. page 3-23, a detailed grading and erosion plan should be provided and impacts determined. * I have become aware that many developers operate on the "principle" that it is easier to get on with a project now and deal with problems they cause later, rather than do it right. (They often only get slapped on the hand anyway. ) Errors resulting from lack of research or an inability to know the outcome before aoina ahead will be 4 . • -5- disastrous on this fragile, prime habitat. The developer won't be able to fix them, but he doesn't have to worry about that apparently. * There are too many unknown consequences in this DEIS. * There should be detailed drainage plans for both Tracts. * Re. page 3-32, no further fill of wetland should be allowed. The further destruction of wetland cannot be mitigated and should be unthinkable. * The 25 foot no-build buffer zone is ridiculous. * On page 3-34 we read, "Development of the site will result in a change in wildlife species composition from natural to more "urban". How true. To allow this would be a serious violation of policies mentioned above. This cannot be mitigated. * The old Black River Channel will not be undisturbed, since water quality and quantity will change. (Page 3-35) * Re. Table 3-14, I feel the claims of consistency with the CP re. Open Space, Wildlife Habitat, Vegetation, Resources, Surface Drainage, Water- bodies, and Storm Drainage are wrong. * Claims of consistency with the GRPP re. Wetland/Wildlife/Habitat/Floodplain are wrong. * Educational value of a natural wildlife area such as this is great. The CPRP (p. 71) states as an objective, "Conserve areas with critical or unique natural features -- such as stream corridors, wildlife habitats, shorelines, and wetlands -- especially if endangered by development." To allow this development would be to ignore this objective. The HER states, "In all honesty, with the unique character of the heron and the fact that they are considered a valuable scientific and educational resource, it seems inappropriate to experiment and see if they survive the pressures of development. The observations of a number of similar rookeries show that it is most reasonable to err on the side of caution and not to permit unnecessary intrusion into their environment. Mr. Van Wormer testified that heron rooker- ies are becoming fewer and fewer as suitable habitat has been reduced through development of roads and buildings." Please refer to the comments of Mr. John Kelsall and Mr. Range Bayer, experts, regarding the adverse effects of development on heron rookeries. Information does exist. I urge you, the Officials of the City of Renton, not to take chances with this prime, critical wildlife habitat which Renton is so fortunate to have! How can you compare loss of dollars with the loss FOREVER of the natural beauty and educational value of, this amazing site? • Z -6- This Canadian developer has come close enough to this special area. He has done enough here, don't you think? He should be made to leave this remaining valuable wetland, with supporting surrounding areas, alone. As you know, he Y wants , o develop the north side as well. But he is wisely going one step at a time. (I feel his entire plans should have been presented at once. Then the destructiveness of it all would have been even more obvious. ) How much does he care about the quality of life of the citizens of Renton? How much do you care? Here is your chance to show the citizens you care very much and are willing to do what it takes to save this area for them and their children. That most people value open space and are very concerned about its disappearance, is clear. Please listen to them. Sincerely yours, Christine Linden Mac Lin n ve. M Ll e May 23, 1990 C ��- 0 R c-Y\ 2575 Simms Street Lakewood, CO 80215 20 o 'M Aw.e, S PLANNING DIVISION R e r\A-a n i lea , $()5 CITY OF RENTON MAY 3 0 1990 11)E ; 1VED The first part of my letter consists of some points I want to elaborate on which may conflict with data presented in this EIS. Next , I shall present some observations concerning the DEIS specifically by sections. Last, I shall sketch some reasonable alternatives for development, if development must occur on this site. In February of 1984, I was employed with the Soil Conservation Service on the Green River Project. I was a member of the survey crew for the preliminary and final surveys for the construction of the P-1 pond. Also, I was one of two Construction Inspectors on the project and was the Lead Inspector for the landscaping done in the fall of 1984 and 1985. During this eighteen month period, I averaged four work days per week on the site. Surveys for the construction included running a line across the approximate northern edge of what are now Tracts A and B. A series of parallel lines were run every fifty feet perpendicular to this main line. These parallel lines went from what is now approxiately Oakesdale Avenue to the Burlington railroad tracks. The only large nest observed from February to October of 1984 was a hawk's nest located north of the old forebay area near the pump plant . That tree was saved for this reason. A topic of conversation often dealt with the question of whether or not heron were nesting on the ' site. The entire survey crew and several members of the construction crew were on the look-out for nests. Mr. Bill Cokeley, the SCS Project Manager for the P-i pond project would often say that he thought a heron rookery would move into the trees that currently hold the new rookery. Bets were even made as to whether or not this woud happen . Bill was convinced that the large trees that would be on the island after construction would be ideal habitat for Great Blue Heron. A main survey point was located at the base of one of these three main trees. I remember eating lunch at the base of that tree. Never in the eighteen months I worked around those trees did anyone observe nests. However, heron were often seen feeding in the old forebay and channel �a9e• before construction. Also, they were seen flying into the forested area that First Cities Development Corporation (FCDC) illegally logged in 1987. in February of 1985, three nests were established at the heronry. These were the first known nests on the site. I called Henry Allmendinger, P-1 Pump Plant Operator for King County, on 5/23/90. He does not know when he first saw nests on the site . He remembers the presence of three nests at the rookery, but he is not sure of the year or if it was before or after construction of the forebay. He is sited on page 3-38, paragraph 3 as the only evidence of heron nesting on the site prior to construction . The first point I am making is that the heron at this site have shown no tolerance for construction activities during the P-1 pond creation because no rookery was established. The second point is that contrary to the DEIS, Great Blue Heron at the Renton Rookery have shown no tolerance to construction activities within one thousand feet of their rookery. Several pieces of evidence support this finding. in early February of 1987, FCDC logged the riparian forest directly north of the rookery without a permit . The logging started in the morning and was observed by Marty Murphy. This logging stopped at noon when DNR put a stop work order on the site. I visited the site early that afternoon. I had never seen the heron in such a state of excitement. They were making a squealing sound and were obviously in disarray and distress. During the next three days, I visited the site once or twice .a day. This is the only time in the six years I have been associated with the site that no Great Blue Heron were present at the site. It appeared that they had abandoned the rookery. On the fourth day after logging, the heron began to return. The only construction activity then on the site was north of the rookery on the recently logged area. The City of Renton had allowed the cut logs to be removed with many restriction and a very small crew. It appeared the logs were almost being skidded by hand. The no-construction dates that FCDC claims are most critical to the protection of the heronry are inadequate . In early to mid-January heron are in and around the rookery trees, starting to pair, etc. February 15th is approximately four to six weeks late . If construction is occurring in this four to six week period the heron may never nest at all . Its not like when we go rent a romantic cabin . We know the date of availability and expect its use no sooner. Some years the heron nest early, some years later. The Great Blue Heron cannot comprehend a reservation as we can. They require a larger window for breeding activity. The time of no-construction should be from January 1 to August 1 . The Renton Hearing Examiner's report continually cites many legal documents showing that the benefit of the doubt should go to preserving this site and its surrounding habitat. I would like to include the Hearing Examiner's report and the • e 3 documents it cited in this letter for consideration and to show the inadequacies of the proposed development and DEIS. Page 3-38, paragraph 2 states that in April of 1989, Van Wormer observed twenty-three occuppied nests. In June , 1989 only seventeen nests were occuppied and eight were unoccuppied. Construction of the new building NE of the rookery at about eleven hundred feet from th rookery was occurring during this year . Also, the Burlington railroad tracks were occuppied with housing cars beyond one thousand feet from the rookery. This data suggests that the activities close to the rookery reduced the successful nesting. I find the flight patterns described in this DEIS curious. Are these flight . patterns something that the birds are allegedly using currently? Or are these the patterns that FCDC would prefer the heron use? I have seen the birds use these patterns. I've also seen them often cut directly across Tract 'A' to the Green River . They have flown on a straight pattern to the southrn end of Lake Washington and also west over the pump plant. I don't believe the birds will honor particular routes when any one of several may be required. Following are specific points from the DEIS that I would like to comment on . Tract 'A' has mitigation measures that contain phrases such as 'should be' , 'would be' , 'should have' , 'should occurs' , and 'should comply' . The presence of such words prevents FCDC from being committed to any definite actions. The City of Renton should require more definite language and commitments_.. The past actions of FCDC have shown that such a requirement is wholly reasonable . This developer has engaged in illegal logging, the installation of illegal drainage systems, failed to meet Renton's Tract 'A' tree planting requirements, and has misrepresented facts on the DEIS checklist . FCDC has also proven difficult for the Renton City Council to manage during the development of an apartment complex located between Benson Road and Old Benson Road. It is difficult to evaluate a construction efforts' long term effects without a drainage plan. Such a plan should be required in the final EIS. The 'no build zone' should include parking lets as well as structures. The developer contends that people should be excluded from walking around the R-1 pond to protect the rookery. This requirement would be unlawful and would not serve the public interest . The pedestrian traffic on the access trail has posed no threat to the heronry. The main threat to the rookery is FCDC. Lighting near the site should be minimized so the heron are not disturbed. Non-reflective glass and coating should be used on all sides of any Pk t structures that are built on the site. The area between Tract 'A' and the P-1 pond was successfully planted and developed for wildlife. It contains a trail known as the access maintenance road that has been a trail since its construction. The developer has suggested a cooperative agreement to add new trails and to replant this existing path . There is no reason for more trails or any alterations to this existing area. When vehicular traffic patterns are evaluated for the site, all four parts of the city should be considered, not just the Grady Way corridor. The number of parking lot spaces seems excessive in light of the planned occupancy. The Black River channel and Springbrook Creek should have at least a one hundred foot buffer. Observation of twenty-five foot buffers has shown that such practices are of little use to wildlife. Such areas become trashed, trampled, and have excessive use by people. Experts have stated repeatedly that a six hundred and sixty foot buffer is the minimum needed to protect the rookery. The Renton Hearing Examiner suggested a one thousand foot buffer after evaluating laws, testimony, and studies for this site . FCDC continues to plan buildings closer than the six hundred and sixty foot minimum buffer would allow. FCDC proposes a seven-story building for Tract 'B' . This would seriously disrupt the heronry and would not fit into the site development plan. This building would be a center of activity for the area and would act as a focus of human activity. This building should have been placed in the previously developed tracts away from the rookery. Air quality has not been addressed in regard to its effect on the rookery. Studies have shown that poor air quality can seriously effect nesting success. At 68th and Empire Way, FCDC is developing a large apartment complex. Each of these apartments will have a fireplace . The combined effects of traffic and increased wood burning should be evaluated.' Chapter 2 states • that FCDC 'voluntarily deeded' a twenty-seven acre parcel to the City of Renton. I was under the impression that this action was required of the previous owner for a zoning change and did not involve FCDC. The Renton City Council required a two hundred foot treed buffer at the edge of the thousand food radius buffer on Tracts 'A' and 'B' (see attached sketch) . FCDC planted only one hundred and forty feet of this buffer and should be required to finish planting. It appears that if this buffer were planted, the buildings proposed for Tract 'A' Poi would impinge on it. Tract 'A' could possibly have abandoned coal mine tunnels beneath it . One such tunnel was discovered during F-1 pond construction. This hazard was not addressed in the DEIS. Tract 'A' is a potentially contaminated site as determined by the Department of Ecology. Dredged spoils from the Black River outlet were placed on Tract 'B' . The potential for the presence of hazardous waste should be evaluated for both tracts_. Signage should be included on site that will inform and educate those working in the heronry area in the ways they may contribute to the protection of the rookery. In conclusion, I would like to state that this DEIS is inadequate . The 'no-action' alternatives are the most reasonable . If development must occur , the existing habitat near the rookery should remain undisturbed. Fewer than one half of the proposed building should be allowed, and these should be situated along Oakesdale Avenue . The majority of the parking could be placed across the surrounding thoroughfares. The dense tree buffer should be located on the edge of the developed area. Thank you for allowing me to comment on this DEIS. Sincerely, Mary M. Anderson 303 934-9365 go . .. ? - 1 tPoNtD 11 IS - AcTt 4L . AREA , l� PLAN r I) ay FG 04 � f \ A EA CC1;VNLIL`S ,)� 1 __ ---j bobs RADiuS 1 ` `!� .4 4 * • 114‘ 4\ $ vilo�i� 9 P ? tAsCr 2001 PLAN T6N6 r BUFF4t. IM4' i 133°ReNTew lV1 t�T U R� Glfy LOt��LOL , . P . A, Lod--T-ON GOOD b.5 A.P017r�iv A L pl}Rk rtv 6. ' 401)4 ? Be LEASEI) Elam A CO./TA10EP, cog P. ' "2' cDEA5 Fo€ ALTCRNfTIJ ]DE\1E oP EWTt-- " gOf'cSAL N TS Ms . Mary Lynne Myer, Senior Environmental Plann LNNING DIVISION Dept. of Community Development CITY OF RENTON The City of Renton 200 Mill Avenue South Y Q �93� Renton, WA 98055 May 23, 1990 r;ECEIVElyi Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, 167 Ni971-4 .2) 1-0/1-643( #0,0a,fr-,./ 9_0/ - x.)cv `7 s7L- 6 Zvi-77 Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including ' city, state, and zip code) , and home telephone number. Ms . Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development P�ANNING DIVISION The City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 MAY 3 0 1990 May 23, 1990 IICECE V ED Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including city, state, and zip code) , and home telephone number. 4 Ms. Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development PLANNING DIVISION The City of Renton CITY OF RENION 200 Mill Avenue South Renton, WA 98055 MAY 3 0 1990 May 23, 1990 REC W ED Dear Ms . Myer, t� This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, _ 37 a S? Par/ five 11- Ke411-0 P► , (,('a, . �o S� i 3 a-6 Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including ' city, state, and zip code) , and home telephone number. • • Ms . Mary Lynne Myer, Senior Environmental Planner Dept. of Community Development The City of Renton 200 Mill Avenue South • PLANNING DIVISION Renton, WA 98055 CITY OF RENTON May 23, 1990 MAY 3 0 1990 Dear Ms . Myer, EC �VEJI This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too • close to the heronry. • o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, ° light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife . Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerely, ,56 Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including city, state, and zip code) , and home telephone number. Ms . Mary Lynne Myer, Senior Environmental Planner LANNING DIVISION Dept. of Community Development The City of Renton CITY OF RENTON 200 Mill Avenue South Renton, WA 98055 MAY 3 0 1990 May 23, 1990 5 ECEQVED Dear Ms . Myer, This letter is in regard to the Blackriver Corporate Park draft Environmental Impact Statement, dated April 1990. I have a number of concerns about the proposed development. Primarily, I do not want the heronry to suffer adverse environmental impact as a result of the proposed development. The City of Renton is responsible for ensuring that this development does not have that affect. My specific concerns are as follows : o Placement of the buildings and parking areas are too close to the heronry. o Without adequate buffering, the herons and other wildlife will be adversely disturbed by movement, light, noise, air and water quality, glare, and the heron will probably leave. o Paving the area will eliminate habitat for other wildlife. Local extinctions may occur. Please keep me informed as to any development that does take place at the site. Thank you for your consideration to this urgent issue. Sincerel , 77t-e _., JL C c/ oz//.UGv/ 71 ', 77c2 Please note: To complete this letter-- Please sign your name under "Sincerely, " and directly under your signature, print your name, add your address ( including ' city, state, and zip code) , and home telephone number. Citizens for Renton Wildlands Preservation May 25, 1990 PLANNING DIVISION Mary Lynne Myer, Project Manager CITY OF RENTON Community Development Department Renton City Hall MAY 3 0 1990 200 Mill Avenue South Renton,WA 98055 RECEWED Subject: Blackriver Corporate Park draff EIS,dated April 1990 Dear Ms. Myer, As president of Citizens for Renton Wildlands Preservation, I represent over 200 aciive ; - volunteers whose goal it is to preserve the acutely fragile ecosystem at the Blackriver Riparian Forest. I am extremely concerned about the proposed developments high potential for significant adverse impact on the herony and other wildlife that lives or winters at the site. The real measure of success or failure on this ecosystem is the long-term effect on the now well-established heron colony that has existed relatively undisturbed since 1985. According to independent internationally recognized heron experts, this development is likely to destroy or, at a minimum, result in a much diminished wildlife area. Incidentally,any reports of heron nests prior to 1985 are unsubstantiated. A general comment that applies to all my comments-- referring to WAC 197-11-080, which applies to incomplete or unavailable information,when there are gaps in relevant information or scientific uncertainty concerning significant impacts, agencies shall make clear that such information is lacking or that substantial uncertainty exists. The agency shall weigh the need for the action with the severity of possible adverse impacts which would occur if the agency were to decide to proceed in the face of uncertainty. If the agency proceeds, it shall indicate its worst case analysis. My specific concerns are as follows: page vi:,the following are applicable: (1)(b)(i) Air quality, (1)(c)(iii) Floods, (2)(a)(iii) Potential releases to the environment affecting public health, such as toxic or hazardous materials, and (2)(c)(i)through (vi) Transportation. Section 1.2.1, page 1-3: The "rookery protection guidelines'. defined for the site are based on inaccurate and misleading interpretations of published reports. I have attached the comments of Dr. John Kelsall, Mr. Range Bayer, Ms. Marty Murphy, and Dr. Scott Forbes as they relate to this draft EIS, including Appendix B. Section 1.3, page 1.3: The need and demand for the office park space has not been defined. There is a high vacancy rate of new office space. I believe that it is at a 30% level,according to a televised report on KING,Channel 5. Even if that were not true, there are better, less environmentally sensitive sites that should be developed instead of this one. For example,the central downtown business district in Renton is in need of an enconomic boost. Development of office buildings may well be an effective and appropriate way of providing that boost. According to the City's Comprehensive Plan on page 12 (Economic Goal), Item B. Districts Objective, Policy#1: Districts should have an efficient and functional relationship between various land uses,and Policy#2: Declining areas should be rehabilitated. The proposed project does not meet Policy 1725 Pierce Avenue SE Renton,Washington 98058 #1,and if placed in or near the central downtown district,would comply with said policy, and it would also contribute to the achievement policy#2. Section 1.,4,page 1.4 and Table 3.14, pages 3-30 through 3-60: I too,have evaluated the consistency with local and state laws, regulations, and policies. See my letter to Mayor Earl Clymer,dated May 9, 1990. In addition,the City of Renton Shoreline Master Program is applicable. Table 1-2: Tract A: Topography/soils: No grading and filling should be done from January 15 though August 1 as this is the courtship, breeding, and nesting period for this colony, based on site- specific observations. Foundation: The foundation will be adequate only if taken to bedrock level. This is especially in light of seismic concerns (see below) Seismic: Testing needs to be site specific. Verification that the site has low potential for liquifaction should be verified with an appropriate agency or firm. Air qualify: is applicable because of-the introduction of 1,942 to 2,087 vehicles. The effect on both humans and wildlife needs to be shown. The air quality measurements need to be taken during inversion conditions in the winter and evaluations based on those conditions. Surface water movement: The P1 Pond was at or near capacity during the flooding early this year. Surface water runoff and the paving over of Tracts A and B could have severe impact on the P1 Pond. Surface water quality: This needs to be monitored on an ongoing basis by the Department of Ecology. Wetlands: Potential for siginficant adverse impact with the paving over of Tracts A and B. Wildlife resources: This impact needs to be fully mitigated. If this is not possible,the project should not be approved. Buffer must be in accordance with WDW guidelines, at a minimum. If this does not result in an effective screen, i.e., if the heron colony is not exhibiting the same vigorous health that it appears to be currently enjoying prior to development,then the buffer must be reanalyzed and additional vegatation provided until the health of the colony is revitalized(or,if it is clear after serious attempts at improving the buffer that the herons are pushed beyond their tolerance limits for disturbance,then this encroachment needs to be studied by a recognized heron expert and published in recognized ornithological and birding publications,with the effects clearly spelled out. Documentation of the effects of human disturbance needs to be generated so that next time we don't make the same mistakes.) If nonhooded windows are used,III windows need to be made of nonreflective glass. Tinted glass is highly reflective and has caused the death of many birds. This office development must be viewed from the perspective of a bird, not a person-- all of the birds wintering over or living year round at the site are well capable of flying around and over any structures we build at the site. The nonreflective windows should be approved by an independent agency,such as Dept. of Ecology and an independent expert birder, preferably one selected by the Seattle Audubon Society. If hoods are used over the windows,these,too,need to be approved as spelled out above. Incidentally, if any reflection shows through the hooded windows,then nonreflective glass should be required regardless of whether hooded or nonhooded windows are used. 2- Unique terrestial resources: See note regarding Section 1.2.1, page 1-3. Establish buffer in accordance with WDW guidelines,at a minimum. The vegatative buffer should be in accordance with Seattle Audubon Society recommenations. Is the exclusive use of natural tones appropriate? I know that it is common practice, however, I wonder if it increases the liklihood that birds may fly into the structures. Some contrasting edging may provide a visual cue to birds. It may be worth investigating. No exterior construction activities should take place between January 15 and August 1 at distances specified by WDW. Currently, both tracts are unscreened and line of sight to the colony. Therefore,no exterior construction shall take place within 1320 feet(per WDW) during the breeding season,which is from January 15 to August 1. If adequate buffers are established, in accordance with Seattle Audubon Society recommendations, then the WDW should be contacted for appropriate distance between exterior construction activities and the heron colony during the January 15 through August 1 breeding season. Noise: No outdoor construction activities shall take place between January 15 and August 1-- see conditions stated in preceding paragraph. This statement needs to be specifically conditioned. Impacts from pile driving cannot be mitigated. See Seattle Audubon Society comments. Auger cast-in-place pilings should be required, and pile driving not approved for this site, for structural stability in the event of seismic disturbance. Relationship to plans,zoning, and shorelines: Comments in Appendix A section. Light and glare: Potential significant impact of light from buildings and parking that needs to be mitigated. Both tracts are going to contribute equally to this problem,and, therefore, both tracts should addressed. Reflection from windows is addressed above. See Wildlife resources. Historical and cultural: Was this the exact site where an archaeological study was performed(James Chatters, 1982)? I have heard that it was not. Even if it was,Mr. Chatters was on contract to FCDC when he surveyed the site. An independent study is warrented,according to Mr. Chatters. Traffic: This development will have a significant adverse impact and needs to be described fully in the DEIS. If the impacts cannot be fully mitigated,the development should be put on hold until mitigation has taken place. Comments regarding Tract B are basically the same as for Tract A. I have two comments to add: Unique terrestrial resources: Walking and jogging trails and other forms of recreation should not occur closer than recommended by independent heron experts and WDW. These recommendations should be based on site-specific observations. The 480 feet proposed is much too close to the heronry. This will unnecessarily stress the birds. Relationship to plans,zoning, and shorelines: Agree with "reduce building height. No structure within 1800 feet of the heron colony should be higher than the lowest nest! This is crucial. See statement in Appendix B, page B-6, "all of the great blue heron nests in rookeries visited for this study were located in the tallest trees." 1_ ' ECOLO6Y - NWRO Hazardous Waste Investigation & Cleanup Program SMIS Alphabetical Listing April 6, 1990 SITE HWCP ID EPA NO CAT6 SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-37-0028-000 D980833925 C2 Lummi Shore Dump Hwy 520, WNW of City Bellingham 98227 N-37-0010-000 D980835318 N Lynden Airport 8631 Depot Rd Linden 98227 CB N-31-0020-000 D009488651 N Lynnwood Plating 2107 196th SW Lynnwood 98036 CB N-17-0008-000 D980723985 C2 L-Bar Products Inc. Industrial Mine 26000 Blk Diamond/Ravensd Seattle 98051 N-17-0118-000 D053822623 C2 Magnolia Fertilizer 1144 Ballard Way Seattle 98133 N-11-0192-000 Cl Malarkey Asphalt Co. 8700 Dallas Ave. S. Seattle 98108 DC 4-31-0021-000 D980639736 C2 Maltby Warehouse & Field S End of Yew Rd Maltby 98290 N-17-0119-000 0000711846 N Mannesmann Tally Corp 8301 S 180 St Kent 98031 N-17-0029-000 Cl Maralco 7730 S. 202nd Kent 98032 DS.NP N-29-0007-000 D980638944 N March Point Landfill Whitmarsh Dump/ 1/4 Mi E of BN's Whitmars Anacortes 98221 KF N-17-0120-000 D980639827 N Marine Disposal Corporati Pier 35 Seattle 98134 DC N-17-0202-000 WA0980974521 Cl Marine Vacuum Service, In 1516 S. Graham St. Seattle 98108 NP N-17-0121-0000 D980722607 N Maritime Building 911 Western Seattle 98136 N-17-0122-000 D063346597 C2 Mastercraft Metal Finishi 1175 Harrison St Seattle 98109 N-15-0008-000 D060051356 N Melco Manufacturing 2845 N Goldie Rd Oak Harbor 98277 • N-17-0156-000 D980834006 C2 Meridian Landfill Corliss Landfil 170th N & Meridian Ave. Seattle 98133 4-17-0123-000 D009272741 C2 Metal Laundry Incorporate 614 12th Seattle 98122 N-17-0124-000 D000854026 N Metro Alki Treatment Plan 3380 Beach DR SW Seattle 98116 4-17-0203-000 Cl Metro Lake Union Facility 1602 N. Northlake Way Seattle 98103 LD,DC N-17-0038-000 D980639470 N Metro North Bus Base South Sect. Cor N 165 St. & 1st Ave NE Seattle 98133 6C,RD N-17-0027-000 N Metro South Base 11911 E. Marginal Way S. Seattle 98168 MT,DC N-17-0207-000 C2 METRO- Central Operating 1333 Airport Way S Seattle 98134 DC N-17-5018-000 Cl Mill Creek Site W. Valley Hwy & S. 196th Kent 98032 CW N-17-0033-000 Cl Mobil Bulk Facility- Rent 2423 Lind Ave. SW Renton 99055 LC,NP N-17-5001-000 Cl Mobil Oil- Canal Bulk Pia 1101 NW 45th St. Seattle 98107 LD RV.., 6 N-31-5006-000 CI Mobil Oil- Everett, Bulk Mobil Oil Bulk 2731 Federal Ave Everett 98201 CB y-17-5002-000 CI Mobile Truck Service 2214 4th Ave. S. Seattle 98134 MT,DC N-31-0022-000 D980975957 Ci Monroe Landfill T28N,R6E,Sec26 Monroe 98272 4-17-0020-000 WAD981772858 Cl Monterey Apartments Site Union 76 CB/Arn 622 1st Av W! Oueen Ave N Seattle 98109 DD,DC N-17-0157-000 D980726327 Cl MST Chemicals, Inc. Port of Seattle 6020 W Marginal SW Seattle 98108 DC N-29-0003-000 Cl Mt Vernon Gasoline Spill College Wy & Freewy Dr- S Mt. Vernon 98273 JH,DM N-37-0036-000 D009250564 C2 Murray Chris-Craft Cruise Uniflite Inc. 9th & Harris Bellingham 98225 N-17-0126-000 D980976104 C2 Newcastle Mine Timber Sho Coal Creek Deve Newcastle Coal Cr Rd, Sec Issaquah 98027 N-17-0127-000 0980977250 C2 Newcastle Mine-Air Vent Newcastle Coal Cr Rd, Sec Issaquah 98027 N-17-0014-000 D980723852 C2 Newcastle/Coal Creek Land Palmer Coking & Newcastle Coal Cr Rd, Sec Issaquah 98027 KKD,6C N-37-0031-000 D980723258 C2 Newhalem Dump 1 mile West of Newhalem Newhalen 98283 CW N-17-0006-013 Cl Non-Ferrous Metals, Inc. 2905 13th Ave. SW Seattle 98134 DC,LD N-37-0032-000 D057315624 N Nooksack Valley Disposal 250 BirchBay Lynden Lynden 98264 N-17-0128-000 D009260969 N North Coast Chemical Co 6300 17th AV S Seattle 98108 4-17-0129-000 D000066084 Ci Northwest Cooperage Co., Second St. Ditc 7152 1st Av S Seattle 98108 DC LD N-17-0130-000 D058367152 C2 Northwest EnviroService I Western Tank Pr 1500 Airport Way S Seattle 98134 BS,DC N-31-0023-000 D9807338223 N Northwest Garbage 1821 180 SE Bothell 98011 N-29-0008-000 D009624347 Cl Northwest Petrochemical C 708 N Texas Rd, March Poi Anacortes - 98221 KF N-37-0037-000 0980979207 Cl Northwest Pipeline Corp.- Sumas Dist 4738 Jones Roa Sumas 98295 L. SI N-31-0024-000 D980724165 N Northwest Transformer Ser 6510 216 St SW UnitC Mountlake Terra 98043 N-17-0131-000 D980833479 N Northwest Transformer Ser 33729 9th Ave S Federal Way 98003 4-37-0007-000 C2 Northwest Trnsfrer-600dwi Off Goodwin Rd. by So. Pa Everson 98247 N-17-5010-000 Cl NW College- Assemblies of 11102 NE 53rd St. Kirkland 98033 NP 4-17-5014-000 C2 NW Market St. Site Fentron Industr 2801 NW Market St. Seattle 98107 DM,LD N-17-5007-000 D017559327 C2 N.C. Machinery 17025 West Valley Hwy. Tukwila 98188 TH N-15-0009-000 D980639173 C2 Oak Harbor Landfill Goldie Rd Oak Harbor 98277 J6 N-37-0008-000 D008957243 Cl Oeser Cedar 730 Marine Dr Bellingham 98225 DN N-37-0038-000 C2 Olivine Ash Landfill 928 Thomas Rd. Bellingham 98226 ECOLOGY - NWRO Hazardous Waste Investigation & Cleanup Program SMIS Alphabetical Listing April 6, 1990 SITE HWCP ID EPA NO CATG SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-31-5005-000 Cl Olympic Foreign Auto Wrec 2947 Fulton St. Everett 98201 N-17-0132-000 0047487103 N Olympic Hose Care Product 1141 NW 50th Seattle 98107 N-17-0006-009 M Olympic Pipe Line Co. 2444 13th Ave. SW Seattle 98134 DC N-29-5001-000 D000641746 L Olympic Pipe Line- Allen Allen Pump Stat Hwy. 20, West of Avon-All Burlington 98233 CB N-17-0206-000 C2 Olympic Steamship Co., In 8220 S 212th St Kent 98031 NP N-18-0004-000 D042804971 L Olympic View Sanitary Ldf Ares-Air Dispos 10015 SW Barney White Rd Port Orchard 98366 DW 4-31-0025-000 D980639066 N Oso Landfill 31705 Lk Cavenaugh Arlington 98223 CB N-29-0009-000 D980639090 C2 P M Northwest Dump Hwy 20 Swinomish I R Anacortes 98221 N-17-0028-000 D009249210 B PACCAR Pacific Car & F 1400 N 4th St Renton 98055 LC,GC N-17-0133-000 D980724223 C2 Pacific Chem & Cleaning C 2200 4th S Seattle 98134 DC N-17-0134-000 D051239960 C2 Pacific Chemical 500 7th Ave. S Kirkland 98033 NP N-17-0021-011 L Pacific Iron & Metals 2230 4th Ave. S. Seattle 98125 LD N-17-0135-000 D980639710 C2 Pacific Landfill S of 3 Av SE/White River Pacific 98047 N-17-0201-000 C2 Pacific Marine Environ. L 7600 Sand Point Way NE Seattle 98115 GOODM N-17-0006-010 C2 Pacific Molasses Co. 3200 11th Ave. SW Seattle 98134 DC N-31-0035-000 D980979679 Cl Pallister Paint 1037 Center road Everett 98204 CB,LD N-17-0179-000 D003781143 C2 Palmer Coking Coal Co. 31407 Hwy 169 Black Diamond 98010 DG,SS N-17-5004-000 Cl Petersen Site 4315 11th Ave. NW Seattle 98107 GC JH N-17-0137-000 D009277518 N Pioneer Enamel Manufactur 5531 Airport Way S Seattle 98108 N-17-5012-000 Cl Pioneer Lumber & Treating LECO, Inc.; 1080 W. Ewing Seattle 98119 LD N-17-5029-000 D009277518 CI Pioneer Porcelain Enamel Pioneer Enamel 5531 Airport Way S. Seattle, WA 98108 NP N-18-0013-000 D980975858 C2 Pioneer Quarry Site-Propo T24N,R1E,Sec 20 Bremerton 98310 N-17-0139-000 D980739686 N Poles Incorporated 826 102 NE Bellevue 98004 N-17-0021-013 Cl Precision Engineering 12131 So Director Seattle 98108 BT LD, J N-17-0140-000 D059315069 N Preservative Paint Cavan 5410 Airport Way S Seattle 98108 N-37-0009-000 D980975007 N Pt. Roberts Landfill Whatcos County 2030 Benson Rd Point Roberts 98281 DN N-17-0141-000 D008034191 C2 Puget Sound Tug & Barge Crowley Mantis 1102 SW Massachusett Seattle 98121 N-17-0142-000 D980738553 N Quadrant Corporation 34461 9th Ave S Federal Way 98003 N-17-0016-000 D980639215 CI Ouendall Terminals • Reilly Tar & Ch 4503 Lake Washington Blvd Renton 98055 GC v-17-0170-000 D980511869 Cl Ravenna Landfill U of W Montlake S of NE 45th & E of Monti Seattle • 98105 LD N-17-0185-000 D981771561 C2 Redondo Oil Pit, King Co. 16th Ave S & SW Dash Poin Redondo 98054 N-17-0146-000 D980723910 C2 Reichold Chemical 5900 W Marginal Way Seattle 98106 DC N-17-0100-000 D980978001 C2 Renton Highlands Landfill Highlands Landf NE 3rd St., W of NE 4th S Renton 98053 N-17-0147-000 D980639652 C2 Renton Junction Landfill 1800 Monster Rd Renton 98055 DS N-17-0148-000 D980639314 N Renton Transfer Sta S of NE 4th St Renton 98057 N-17-0046-000 D098556046 M Repair Technology, Inc. Advance Hard Ch 400 S. 96th Seattle 98108 LD N-17-0125-000 D009282302 C2 Rhone-Poulenc Inc. Monsanto Corp- 9229 E Marginal Wy S Seattle 98108 DC DL N-17-5008-000 Cl Rose Hill Plaza 8510-60 122nd Ave. NE Kirkland 98033 LA N-17-0149-000 D009261769 N Rudd Paint and Varnish Co 1608-30 15th Ave W Seattle 98119 N-37-0023-000 D009250036 Cl R.G. Haley Intl Corp Foot of Cornwall Av Bellingham 98225 JG N-17-5009-000 Cl Sammis Land Co. Site R.M.P. Inc.; Du 647 S. Alaska St. Seattle 98108 NP N-31-5007-000 Cl San Juan Pools 18300 Bothell Hwy.SE (S.R Bothell 98012 NP N-17-0006-103 D048681316 Cl Seafab Metal Corp. 2700 16th Ave. SW Seattle 98134 HF,DC JS N-17-0006-104 D048681316 L Seafab Metal- Surface Imp 2700 16th Ave. SW Seattle 98134 HF N-17-0150-000 D980726384 C2 Seattle City Light Storag South Service C 3613 Fourth Ave S Seattle 98108 CW N-17-0006-018 D027470426 Cl Seattle Iron & Metals 2955 11th Ave. SW Seattle 98134 MT,DC N-17-0151-000 D980833941 N Seattle N Transfer Static 34th N & Carr P1 Seattle 98103 N-17-0153-000 D001533538 N Seattle Post Intelligence 521 Wall ST Seattle 98121 N-17-0154-000 D009252016 N Seattle Rendering Works 5795 S 130th PL Seattle 98168 N-17-0155-000 D980833826 N Seattle So Transfer Stati 8100 2nd AV S Seattle 98118 N-17-5024-000 Cl Seattle Steam Co. (Post A 700 Post Ave. Seattle 98101 NP, N-17-5023-000 Cl Seattle Steam Co. (Nester 1319 Western Ave. Seattle 98101 NP, D N-17-0059-000 D009265851 C2 Seattle Steel, Inc. Bethlehem Steel 2414 SW Andover Seattle 98106 DC • Section 1.5,page 1-16: I defer to the expert comments of Dr. John Kelsall,Mr. Range Bayer, Ms. Marty Murphy, Dr. Dee Borsma, and Mr. Ted Muller. General comments regarding this proposed development: The issue regarding this proposed office development is actually a much larger issue. The City of Renton,along with every other Puget Sound community, needs to determine what specific qualities the Puget Sound region offers that attracts and appeals to Puget Sound residents. This region still possesses abundant natural beauty: Plentiful, clear water, relatively clean air (most of the time, anyway),and open spaces set this region apart from other industrial cities,such as Los Angeles, Detroit, and New York City. We need to identify what makes this region special, and then develop comprehensive community and regional plans and policies to ensure that those qualities are not destroyed. Our current mode is to destroy tract by tract the fragile natural resources that we love. Do we want Puget Sound to be known as a place where developers (especially foreign developers, such as FCDC)can come in and destroy what little sensitive lands remain. We seem to be of the mind that if they offer enough cash,that we will accept the price we have to pay for the losses of our natural resources. Section 2.3,page 2-3: Correction: According to my last count of the nests,which occurred in early March (just before the trees leafed out),the total for the 1990 season will be between 30-37 nests. This includes a new expansion in a tree located approximately 200 feet west of the primary colony. The new expansion contains at least 4 nests. See photocopy of photograph,which is included in my attachments. I counted 3 unused nests in the primary colony. All of the nests in the new expansion were occupied. Figure 2-1: According to my observations,the heron fly into and out of the colony from all directions. There is no "heron flight zone." This is an especially unreasonable assumption when the total number of herons is taken into account. The colony contains between 54 and 68 herons,and their numbers alone would indicate that these birds will be traveling to and from various feeding grounds throughout the area. The flight paths are entirely random. Section 2.5.2,Tract B, page 2-5: It is essential to determine what reasonable use of the land would be, as opposed to ignoring the environmental concerns. Please refer to the hearing examiner's report, dated June 9, 1987 for a synopsis of concerns (file number SP- 100-86). Section 3.2.1, page 3.3 (among others): Mitigation measures-- replace "should" with "will." Use of words like "should, "could," "may," etc., are entirely unacceptable in this document. This appears to be a sly way to avoid mitigation,even though it is mentioned as a mitigation method. When toothless words such as these are used, there is no assurance the the mitigation will be performed. I will note those occurances that I see, however, I may miss some. This document needs to be rewritten and all of these terms replaced by actual mitigation measures with words such as "will," "shall," etc. to ensure that the mitigation takes place. Section 3.2.2 page 3-4: Mitigation measures: "Would be suitable" needs to be replaced by "will be used." Section 3.2.3, page 3-5: Mitigation measures: "Should" needs to be repaced by "will." Section 3.3.1, page 3-17: Mitigation measures: "Should" occurs three times) needs to be replaced with "will." Section 3.4.1, pages 3-17 to 3-21: It seems more appropriate to use the 100-year storm as a basis for this development, especially in light of its location to the flood control pond. Also,the severe flooding that occurred early this year could well indicate that it is more appropriate to consider the worst case analysis (see page 1 of this letter under"a general comment"). (Page 3-21 continued): Tract A: "It can be assumed??" Shouldn't this be investigated by the appropriate agencies? Statements such as these encourage increased risk to the environment. If we don't have enough information on which to base a decision,we need to get that information in order to avoid repeating problems,such as the flooding that took place early this year. Mitigation measures: "could" needs to be replaced with "will." Section 3.4.2, page 3-21: Considerable information is known about the water quality at the P1 Pond and in Springbrook Creek. See the Centennial Clean Water Fund Grant Application for the Black River Water Quality Management Project, dated February 21, 1990,and released by Ron Straka,a civil engineer in the City of Renton Public Works Department. page 3-23:Tract A impacts: It appears that a detailed grading and erosion control plan needs to be done in order to accurately anticipate impacts. Is a high flow by-pass of the swale needed? page 3-27: Mitigation measures: An important consideration in the erosion of the P1 Pond is the seasonal raising and lowering of the water level. It is imperative that the water level be retained at winter levels all year around,and not dropped as is standard practice during the late spring,summer, and early fall months. The adjustment of the water has a severely negative impact on the site for a number of reasons. See my letter to Ivan Lines of the Spokane Soil Conservation Service (you have a copy in your files). My primary concerns as they relate to this proposed project are the effects of increased siltation raising the floor of the P1 Pond,with the result of the area turning into more of a marsh than remaining a pond,and the elimination of an effective water buffer between any construction and development on Tracts A or B and the heron colony (and other wildlife living in or near the protected forest). page 3-28: It apears that a detailed drainage plan needs to be done In order to acurately anticipate impacts. Section 3.5.1, page 3-29: We need to discourage the removal of any cottonwood or alder that would act as a buffer between the protected forest and heron colony and development. The developer can scale down the project and design around the trees. page 3-30: Mitigation measures: "FCDC should" (occurs twice) needs to be replaced with "will." Gramatical construction of this section is poor. The third bulleted item should require not only the development of a detailed plan,but also all the follow through that assures that this will be performed and maintained in the long run. Long-term mainenance is essential for the success of this area. Section 3.5.2, page 3.32: Impacts to Tract B: The City of Renton,with the assistance of the Department of Ecology, needs to determine what habitat this should be,and then ensure its development, maintenance, and protection. page 3-33: Mitigation measures: The planting plan needs to be carried out and maintained,as well. Revegatation of affected current as well as past(in other words, all) construction areas need to be performed. The plantings Jjl, not should, include... Incorporate a drainage plan which incorporates(not would incorporate) use of biofiltration swales... Section 3.53,page 3-33: It is important to note that the primary reason wildlife has gravitated to this wetland site, is because it has remained relatively undesturbed by humans on a day-to-day level. There have been some serious invasions to the wildlife area, but they have been short-lived and very sporatic. This development represents a permanent invasion into the area,which will have significant impacts on the entire ecosystem there. page 3-34: Regarding mammalian and amphibian use on Tracts A and B: I have seen a number of garden snakes on both tracts, and hear what sound to be a substantial population of frogs at dusk. Also,there is are beaver at the pond and along Springbrook Creek. See photocopies of photographs,which are attached to these comments. The beaver apparently are newcomers to the site, as no indications of beaver were observed prior to this year. Section 3.5.4,page 3-37: I have observed eagles feeding,foraging at the site. Dates of eagle observation are 3/11/89, 10/26/89, 11/12/89, 1/6/90,and 3/25/90. A majority of use occurs from early January through August. Tracts A and B do represent important heron habitat, especially in the winter months. They feed on the voles, moles, etc. I have seen the remains of regurgitation from herons on the Tracts A and B. page 3-38: There are four cottonwoods,not three that make up the primary heron colony. This makes me question whether he has actually measured the trees, as stated in the text. It also is a good time to ask for specific information about Mr. Van Wormer, We have been following your reputation as an independent biologist for a number of years. Your opinions and conclusions have not been consistant with most people who have significant training and experience. Because of the vital importance of the imacts of this particular project,we ask that you respond truthfully to the following questions (incidentally, bios are included for each of the expert reviewers, unless The City of Renton already has the information): Education: o What school did you attend. o Your degree is in what subject? o What year did you graduate? o What was the title of master's thesis(if applicable) (please enclose copy or indicate where one can be located)? o What was the title of your Ph.D. disertation (if applicable) (please enclose copy or indicate where one can be located)? Publications: o List of papers published, along with publication titles(enclose copies); o How many years of wildlife field experience have you had, i.e., nesting patterns, behavior patterns, nesting success; and biological data, such as toxicology; o What are your methods of study(must be in accordance with accepted ornithological standards)? In general,this project should not be approved until FDCD shows that it is providing genuine mitigation measures that are based on accurate information and proven effective. Thank you for the opportunity to comment on this draft EIS. Please keep me apraised of this project. Sincerely, Susan Krom President enclosures - 7- Susan Krom Black River Bird and Mammal Count Sightings of 2/14/90: Cormorant 4 GB heron 30. Number of resident GB heron wintering at the heronry range from 7 to 15, until breeding season begins in mid-January, when the numbers start increasing rapidly and the heron gravitate toward the cottonwoods where their nests are located (during the nonbreeding season, the heron loaf in the shallow parts of the P1 Pond, along Springbrook Creek, and in alder on the north shore of the P1 Pond). Starting in mid-January, the heron move to the cottonwoods and many will perch on top of nests (these may be the dominant birds laying claim to those nests). On this date, three nests of the total 23 nests were not claimed. Hooded 1 pair, in courtship display. merganser Goldeneye (sp) 8 pair Scaup (sp) 10 pr Canada geese 12 flying overhead from Springbrook Creek Small nest 1 (may be bushtit) Mammals: Beaver number unknown, but many sapplings have been taken down by the beaver. Teeth marks are evident. (south side of P1 Pond) Rabbit 1 Opposum 1 roadkill • Moles number unknown, numerous mole burrows observed Other dates: Bald eagle: 3/11/89, 10/26/89, 11/12/89, 1/6/90, 3/25/90 observed onsite, feeding, foraging for food. Kestral 3/28/90 flying by and over heronry while herons sit and stand on nests. Note: cottonwoods have not fully leafed out yet. Kingfisher 1/10/90 (day after flood) Have observed kingfisher twice before, but did not note dates. Pheasant 1 pair 10/20/89 Have observed pheasant three times before, but did not note dates. Hawk (sp) Observe daily during winter months. Numbers range from 1 to 8. Most are red-tailed, but Coopers, Sharp-shinned have also been sighted. California quail heard. number unknown. year around Goldfinch 100+ (7/89) Nesting takes place during August on the south field (Tracts A and B). The goldfinch are drawn to the site because of the concentration of thistles, a primary foodsource and source of silk for constuction of their nests. Great horned owl 11/1/89, 1/90 2 possible nests on hillside overlooking site. Fish reported: Coho salmon Cutthroat trout — 2- • • 14001 Northwood P1 . N.W. Seattle, WA 98177 May 25, 1990 Mary Lynne Myer Senior Environmental Planner Dept. of Community Development PLANNING DIVISION 200 Mill Avenue South CITY OF RENTON Renton, WA 98055 MAY 3 0 1990 Re: DEIS - Blackriver Corporate Park RECEWED Dear Ms. Myer: I write as a concerned citizen. Having grown up in Renton, I have witnessed many changes - not all of them good. The virtual paving over of the valley floor is dismaying, but the encroachment on sensitive areas rings bells of alarm. The heron rookery area wetlands adjacent to the proposed corporate park is one of those areas. It was the highest ranked target for preservation in the 1981 Wetlands Study. The DEIS has a number of shortcomings that are clear even to those unskilled in evaluating such proposals: 1. The proposed buffers are insufficient. The proposal for Tract A places buildings within about 700 feet of the rookery; on Tract B, within 600 feet. Actually, the proposal for Tract B is not clear. The Guidelines on B-14 appear to propose a no-build setback of only 400 feet from the rookery. Data from the June 9, 1987 hearing concerning the facility indicates that governmental agencies recommended greater buffers. The U.S. Department of Interior, Fish and Wildlife Service recommends a 660-foot or greater radius of no-construction and no-human-activity buffer zone for the heronry with a 200-foot buffer for the pond shoreline. The Environmental Protection Agency stated that less than a 1000-foot buffer would be insufficient without heavy forestation. The Washington Department of Wildlife recommended a buffer zone of 800-1300 feet (cited in the DEIS on B-11) . Furthermore, there is no data correlating the size of the buffer with the value of the wetland or rookery. It seems inconceivable that the same size buffer should be recommended for areas of unequal value. 2. The discussion of the effect of human activity on the heronry seems misleading. Comparing the effect of a park and ride lot or a boat launch . area with the effect of constructing seven buildings, one of which is seven stories tall, is like comparing apples and oranges. Most of the rookery summaries discuss dense vegetative buffers or light human use. The number of people accommodated by seven office buildings has no counterpart in the other discussed sites. Furthermore, there is no discussion of the true health or viability of the heron populations in the other rookeries summarized. Are the nests 12 increasingly dramatically in number each year as they are at the Black River site? Is the fledgling success rate similar? Why are there no meaningful statistics? 3. The "alternative" designs for each tract are not viable alternatives. The only alternative proposed for Tract A is no action. Why was there no proposal that would reduce the size of the development and locate the buildings farther from both the shores of the pond and from the heronry? It seems the buildings could easily be located farther from the nesting site. Was the construction simply a foregone conclusion? The 7-story building and 4-story parking garage alternative for Tract B can hardly be considered to have a minimal impact on the heronry. It is ingenuous at best to argue that a small buffer of newly-planted trees can reduce the impact of a 7-story building. 4. There is no discussion of the effect of disturbing potentially toxic soils. The DEIS notes that the original fill was composed of sediments dredged from the pond area. A superfund site lies just upstream. It seems reasonable that the fill material contained hazardous substances. What is the effect on the environment if these soils are disturbed yet again by construction? Clearly, a soils report dating from 1979, before the dredge and fill operation, provides no basis for sound analysis. 5, The DEIS gives only superficial consideration to wildlife other than herons. It does not even include a detailed list or inventory of other birds, mammals or aquatic creatures. I am not a scientist, but doesn't an adequate assessment of impact on wildlife begin with baseline data concerning the wildlife population? 6. The DEIS discussion of the City's Comprehensive Plan omits critical goals and policies. Strangely, the discussion on A-1 through A-3 completely fails to mention the "waterbodies objective" and policies and the "marshes, bogs and swamps objective," which are discussed below. The City of Renton has the authority to require planners to reduce planned development to minimize the impact on adjacent areas. The Renton Environmental Ordinance adopts a number of SEPA _ rules by reference, including WAC 197-11-650 - 680. The Ordinance adds that the section contains the rules and policies for SEPA's substantive authority, including the power to mitigate or reject proposals. According to the Ordinance, the policies and goals set forth are intended to supplement the City's existing authorization. The City's Comprehensive Plan sets forth a number of goals, objectives and policies. Within the environmental goal, three objectives and supplementing policies merit note: H. Wa_terbodies Objective: To minimize flood damage, minimize the need for storm drainage facilities, promote recreational opportunities, protect wildlife habitats, and enhance adjacent uses, natural waterbodies should be preserved. Policies: 5. Selected marshes, bogs and swamps should be preserved and enhanced. J. Marshes, Bogs, and Swamps Ob-iective: Selected marshes, bogs, and swamps should be preserved and enhanced for water retention, wildlife habitat, and open space. K. Watershed Objective: To preserve and enhance water quality and quantity, watersheds should be protected. Additionally, under the. heading of "Area Specific Policies," the Plan outlines specific policies for the Green River Policy Plan. Those policies include: Remaining wildlife habitat in the Valley should be preserved or its loss should be mitigated. Areas that provide wildlife habitat, such as designated wetland greenbelts and stream corridors, should be large enough to provide suitable cover for wildlife and buffering from adjacent uses. The City's 1981 Wetlands Study should be used as a basis for establishing the priority of wetlands for acquisition and/or protection. A substantial portion of the Black River Riparian Forest should be preserved in its natural state as a unique remnant of the Valley flora. The Plan specifically references the 1981 Wetlands Study. On page 11 of the study, the B-lack River Riparian Forest is named the most valuable wetland in the City: It is large, fairly isolated, has high overall wildlife diversity, high wildlife and waterfowl potential, and an extremely unique vegetational character composed of a complex of old growth riparian species. It provides high value open space and aesthetic qualities. The interaction with Springbrook Creek and the P-1 channel detention basin increases its wildlife habitat value. Significantly, the Study was prepared before the large influx of blue herons. Although heron use in the area predated pond construction, nesting there has grown substantially each year. Now, over thirty nests mark trees both on the island and on the northern shore of the pond. It has received substantial media attention, with reporters and biologists frequently referring to it as the largest heronry in the Puget Sound area. The City should use its extensive authority to require a revised DEIS which presents viable alternatives that really reduce the size of the planned complex, increase both the extent and quality of the buffers, and provide meaningful mitigation for the powerful impacts of a large development. Such action would be consistent with the executive orders issued by both President Bush and Governor Gardner requiring state and federal government agencies to exercise their substantive authority to the extent legally permissible to protect wetlands. (See, e.g. , Wash. State Exec. Order No. 90-04) . Anything less represents a lack of understanding of the emerging national conscience concerning wetlands as they affect the quality of human life. Respectfully submitted, Susan Margoli( ��fi ii 144 1889 43 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV-11 • Olympia, Washington 98504-8711 • (206) 459-6000 May 25, 1990 PLANNING DIVISION CITY OF RENTON MAY 3 0 1990 Ms. Mary Lynn Myer City of Renton RECEIVED 200 Mill Avenue South Renton, WA 98055 Dear Ms. Myer: Thank you for the opportunity to comment on the draft environmental impact statement (DEIS) for the Black River Corporate Park by First City Developments. We reviewed the DEIS and have the following comments. In general, the DEIS does not appear to address the entire area of the proposed development. Development in the vicinity of the P-1 wetlands and the heron rookery must be addressed in its totality before impacts can be adequately evaluated. We noted this in our previous comments and we are concerned that the cumulative impacts may not receive adequate consideration. WETLAND IMPACTS Buildings B and C in Alternative Al and the parking garage in Alternative B2 are proposed within the 600 foot buffer zone. We understand the buffer zone was required by the Hearing Examiner in a 1987 decision. Has that buffer zone condition been removed or changed, and if so, by whom? How wide will the buffer be for Tract A and will it be planted with native vegetation? We recommend a native vegetation buffer at least 100 feet wide for Tracts A and B. Small depressions referred to in the description of Tract A could be wetlands. Compensatory mitigation is recommended for any unavoidable impacts to these wetlands. It appears there is a proposed pipeline through Tract B wetlands. We strongly recommend an alternate route that avoids wetland impacts. Unavoidable impacts to wetlands should be mitigated for. The wetland in tract B should have at least a 50 foot wide buffer around it. MBo3 • Letter to Mary Lynn Myer May 25, 1990 Page 2 We recommend a detailed pre and post-development monitoring program involving vegetation, water quality and quantity, and wildlife for the P-1 wetland and any other satellite wetlands. A contingency plan should be developed to address potential future problems (e.g. marsh loss from a significant increase in hydrologic inputs or contamination from storm water pollutants) . The developer should be held accountable for the expense of the contingency plan implementation. CONTAMINATED SEDIMENTS It has come to the attention of the Department of Ecology that possible contaminated dredge spoils are on-site. These spoils are from the dredging of the Black River Impoundment (aka P-1 Pond) . This "pond" forms behind a dam and a majority of the sediment carried in Springbrook/Mill Creek are deposited in that impoundment. In 1984 the U. S. Soil Conservation Service dredged the existing P-i pump forebay as part of a forebay expansion project. A water dredge was utilized and the discharge lagoon for the dredge operation was located at the site of the proposed construction. (Mary Anderson, personal communication, 27 April 1990.) . Sediments in Springbrook/Mill Creek are known to exhibit high levels of contamination, exceeding Hazardous Waste Inspection and Cleanup Draft Cleanup Program (HWICP) Standards and, in some instances, dangerous waste criteria. A list of known contaminated sites which have historically discharged into Springbrook/Mill Creek is attached. Due to the known historical contamination at the proposed site, it is being considered a potential contaminated site by the HWICP at Ecology's Northwest Regional Office. In addition to the usual impacts from project construction, other impacts are likely to result from the investigation and clean up of any contamination on-site such as well drilling, core sampling, excavation, backfill, etc. • Letter to Mary Lynn Myer May 25, 1990 Page 3 In view of the potential for significant adverse impacts to wetlands and wildlife habitat, and the potential risks from contaminated sediments, we will continue to look closely at this proposal. The City of Renton should seriously consider whether the proposed intensity of development is appropriate for the site. If you have any questions on wetland issues, please call Ms. Terra Prodan or Mr. John Marshal of our Shorelands Program at (206) 459-6835. For questions on contaminated sediments, please call Mr. Norm Peck of our Hazardous Waste Cleanup Program at (206) 867-7047. Sincerely, --Do??d16, Donald J. Bales Environmental Review Section DJB: enclosures (7) cc: Norm Peck, NWRO Rachel Bennett, NWRO Terra Prodan, BH John Marshal, BH ECOLOGY - NWRO „a�ardous Waste Investioation & Cleanup Progr__ , April 6, i9-?0 SITE HWCP ID EPA NO CATS SITE NAME ALIAS NAME' LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTER 4-17-0040-000 D980974409 C2 6th Avenue South Landfill 2901 6th Ave S. Seattle 98134 DC 4-17-0041-000 D097815617 N A J Iinda Company 37405 Pacific Hwy S Federal Way 98003 N-17-0042-000 D069585495 C2 ABC Metal Finishing Inc. 528 Pontius N Seattle 98109 4-17-0043-000 D009286881 C2 Ace Galvanizing Inc 429 S 96th Seattle 98108 LD DC 4-37-0001-000 D980514426 P Acme Landfill Mosquito Lake Rd Acme 98220 4-17-0044-000 D980726442 C2 Acme Plating Works 601 N 35th Seattle 98103 4-37-0039-000 Cl Acme/LUSTs Acme Acme 98220 CW,NP 4-17-0045-000 D009278847 Cl Advance Electroplating Advance Co.•s I 9585 8th Ave S Seattle 98101 LD DC 4-17-0047-000 D097819983 C2 Airco Welding Prod 7700 14th Av S Seattle 98108 LD DC 4-17-5013-000 C2 Alaska Copper & Brass Alaskan Copper 3200 Sixth Ave. S. Seattle 98134 CW,DL 4-17-0031-000 Cl Alaska Pacific Fisheries 2360 W. Commodore Way Seattle 98199 DC,LD 4-17-0048-000 0063351506 C2 American Can Company 400 Baker Blvd Seattle 98188 4-17-0049-000 D009261397 CI American Tar Co ATCO 1700 N Northlake Way Seattle 98103 ID 4-17-5016-000 C2 AM-Tec, Inc. 19025 84th Ave. S. Kent .98032 SC,NP 4-17-0051-000 D042476788 C2 And-All Electrochrome Inc 6332 6th S Seattle 98108 N-17-0006-011 CI ARCO - Tank Farm Atlantic Richfi 1652 SW Lander St. Seattle 98134 MT,DC 4-17-0052-000 D094622339 • N Argent Chem Laboratories 14929 NE 40 St Redmond 98007 N-31-0008-000 D061677647 N Arlington Ford Hwy 9 & Highlands Dr Arlington 98223 CB N-31-0009-000 D980976013 C2 Arlington/Marysville Ldfl Arlington Airport Arlington 98223 N-17-0006-100 D980493670 C2 Asahipen America, Inc. Seattle Paint P 1128 SW Spokane St Seattle 98134 DC 4-17-0116-000 D009249616 C2 Ash Grove Cement West, In Lone Star Indus 3801 E Marginal WayS Seattle 98134 DC N-17-0053-000 D057311177 N Ashland Chemical Co 831 Fifth Av S Kent 98031 4-17-0054-000 D041920554 C2 Asko Processing Inc 434 N 35th Seattle 98103 LD DM N-17-0021-001 N Atlas Demolition Future Resource 1015 3rd Seattle 98104 LD N-17-5020-000 Cl Auburn Abandoned Fire Sta 700 Auburn Way S. Auburn 98002 SC,NP N-17-0021-002 N Austin Mack 2739 Sixth Ave S Seattle 98134 DC LD 4-17-0055-000 D980722250 C2 Bahnmiller Autobody Shop 3734 A St SW Auburn 98002 4-18-0009-000 D980978720 CI Bainbridge Isl. LF- Trenc End of Vincent Rd Bainbridge 98110 D8,SS NB 4-17-0056-000 D044606945 C2 Ballestrasse Logging 28015 SE 432nd St Enumclaw 96022 4-17-0164-000 D980723084 C2 Bayside Disposal Co. Sunset Disposal 7201 W Marginal Way S Seattle 98106 N-17-0058-000, D078194107 C2 Bellevue Plating Co Inc Plating Co Inc. 1513 128th PL NE Bellevue 98005 4-37-5002-000 C2 Bellingham National Bank 863 N. State St. Bellingham 98227 NP 4-37-0014-000 D980511703 C2 Bellingham-Old City Dump Old City Dump Roeder Av Bellingham 98225 DS 4-17-5030-000 Cl Bird Johnson Company 1608 Fairview Ave. E. Seattle, WA 98102 DM DC 4-31-0010-000 D076635358 C2 Biringer Berry Farm 6219 88th St. NE Marysville 98270 4-17-0060-000 D980975791 C2 Black Nugget Mine-NE/Cree Black Nugget Road Issaquah 98027 4-17-0061-000 D980975734 C2 Black Nugget Mine-Rock Tu Black Nugget Road Issaquah 98027 N-17-0062-000 D980975676 C2 Black Nugget Mine-SW!Cree Black Nugget Road Issaquah 98027 4-17-0070-000 D980833669 Cl 'AR- Roundhouse Site Roundhouse Site Tracks Parallel to MS Skykomish 98288 DS KB N-31-0011-000 D041585464 C2 Boeing Cmrcl. Airpin.- Ev 3003 W. Casino Rd Everett 98203 LC N-17-0002-000 D041337130 C2 Boeing Co- Auburn 700 15th Street SW Auburn 98002 LC N-17-0205-000 Cl Boeing Co- Isaacson/Thomp Isaacson Steel 8541 E Marginal Way S Seattle 98106 LC JS,JC N-17-0064-000 D000711622 N Boeing Co- Kent Benaroya 20651 84 St Kent 98034 N-17-0065-000 D061670766 C2 Boeing Co- Kent Space Cen 20403 68th Ave S Kent 98032 LC 4-17-0021-003 D980976260 C1 Boeing Co- North Field Ellis Ave. & E. Marginal Seattle 98108 LC DC 4-17-0021-010 Cl Boeing Co- North Fld.JP4 Ellis Ave. & E. Marginal Seattle 98108 LC 4-17-0066-000 D009256819 N Boeing Co- Plant 2 7755 E Marginal Wy S Seattle 98124 DC LC N-17-0063-000 D009262171 Cl Boeing Co- Renton Eighth and Logan Renton 98055 LC,NP 4-31-0012-000 D980185789 C2 Boeing Co- Tulalip Test S 11224 34th NE Marysville 98270 LC N-17-0067-000 D093639946 L Boeing Developmental Cent 9725 E Marginal Wy S Seattle 98124 LC NP N-17-0068-000 D052581568 N Borden Chemical Company 421 1st Ave N . Kent 98031 N-37-0015-000 D980835565 N Boulevard Park N End Bayview Drive Bellingham 98226 4-17-0069-000 D980639231 C2 Bow Lake Landfill S 188th St & Military Rd Tukwila 98188 • • ' ECOLOGY - NWRO ..u:ardous Waste Investigation & Cleanup Prog.__ SMIS Alphabetical Listing April 6, 1990 • SITE HWCP ID EPA NO CATG SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-17-0198-000 L Bronson Way Texaco 1408 Bronson Way Renton 98055 LC,RK N-31-0013-000 D980639942 C2 Bryant Landfill 6306 Grandview Rd Arlington 98223 SC N-17-0022-000 L Burien/SW Suburban Sewer 10th Ave. SW & SW 154th Seattle 98166 NP N-29-0011-000 D980664551 Cl Butler Hill Lagoon Septic Tank Lag N of Kelleher Rd by aid H Burlington 98233 SC,DN N-17-0071-000 D076655182 C2 Cabot Ind. Heath Plating 8202 S. 200th St Kent 98031 N-37-0017-000 D980722441 N Campbell Residence 831 E Axton Rd Bellingham 98226 JG N-31-0001-000 D980639993 N Cathcart Landfill 14528 Hwy 9 Snohomish 98290 OW N-17-0003-000 D980639991 Cl Cedar Falls Landfill 16901 Cedar Falls Rd SE North Bend 98045 CB N-17-0004-000 D047848122 Cl Cedar Hills Landfill 16645 228 Ave SE Issaquah 98038 DS,GC N-37-0002-000 D980665517 C2 Cedarville Landfill Cedarville Road Bellingham 98226 CW DM N-17-0167-000 L Central Painting 4749 W. Marginal Way SW Seattle 98106 DC N-17-0184-000 D046499778 Cl Champion Intnatl- Ballard Ballard Mill Si 4025 13th Ave. West Seattle 98107 DS,LD N-17-0072-000 0028035137 N Chem Securities Systems 10602 NE 38th P1 Kirkland 98033 N-17-0073-000 D000711689 Cl Chemcentral Solvents Co 7601 S 190th St. Kent 98032 CW N-17-0074-000 D000812909 C2 Chemical Processors Inc 734 S Lucile St Seattle 98108 N-17-0075-000 D000831735 N Chemical Processors Inc 7500 Detroit Ave SW Seattle 98108 N-17-0076-000 D000812917 C2 Chemical Processors Inc Pier 91 Seattle 98119 DC N-31-0014-000 D000064568 N Chevron USA Inc-Asphalt 20555 Richmond Beach Richmond Bch 98177 N-17-0077-000 D053818340 C2 Chromium Inc 1005 S King Seattle 98104 N-31-0002-000 0082506767 N Circuits Engineering 1802 180th SE Bothell 98011 JS N-17-0078-000 D9800975619 C2 Coal Creek Mine- Old Work 166th Way SE, Sect. 36 Issaquah 98027 N-37-0018-000 D065981904 N Columbia Cement Marine Dr Bellingham 98225 N-18-0011-000 D980639835 C2 Constitution Ave. Landfil Constitution Ave & Porter Bremerton 98310 N-18-5000-000 ci Country Junction Store 53t0 5F diqii.o Part OrAtrd 993bb JH N-15-0003-100 D960640015 N Coupeville Landfill Hwy 20 Oak Harbor 98277 N-17-0079-000 D027460698 N Crosby & Overton Inc 3406 13th SW Seattle 98134 DC N-37-0019-000 D052349606 N Crosby & Overton Inc 2032 Humboldt Bellingham 98225 N-17-0080-000 D980977391 N Crossroads Mall Dry Clean NE 8th & 156th Ave. Bellevue 98005 N-17-0081-000 D061682498 N Crowley Environmental Ser 3400 E Marginal Wy S Seattle 98134 DC N-15-0004-000 D980639058 C2 Cultus Bay Landfill Cultus Bay Rd. Whidbey Island 98277 N-17-0143-000 Cl Custom Circuit Technology 11807 NE 116th Kirkland 98033 NP - N-17-5025-000 CI D & L Ventures Property 5339 Roosevelt Way NE Seattle, WA 98125 NP, D N-17-5017-000 Cl Davis Construction Co., I 24515 26th P1. S. Seattle 98198 GC N-18-5001-000 CI Day Road Industrial Park Day Road W. & Hwy 305 Bainbridge Isla 98110 GC,DM N-17-0084-000 D079247474 N Dimensional Engineering 3407 E Marginal Wy Seattle 98108 N-31-5009-000 C2 Diversified Industrial Se 7627 Upper Ridge Road Everett, Wa 98203 NP N-17-0085-000 0980639876 C2 Duvall Landfill 22905 Old Wood/Duval Duvall 98019 N-17-0026-000 Cl Duwamish Fill Site- DOT DOT Landfill S. 124th St. & S.R. 99 Seattle 98168 MT,DC N-17-0086-000 D980975304 C2 Duwamish River-Boeing Plt 7700 E Marginal Way Seattle 98124 DC LC N-17-0035-000 Cl Duwamish Shipyard, Inc. 5658 W Marginal Way SW Seattle 98106 DC RK N-17-0001-000 D960639132 C2 Eastgate Abandoned Landfi Bellevue Airpor 2805 160th Ave SE Bellevue 98008 LC N-17-5027-000 Cl Electrofinishing Company 510 'A' St. S.E. Auburn WA 98002 NP N-17-0087-000 D980639777 C2 Enumclaw Landfill 29000 SE 440 St Enumclaw 98022 N-31-0015-000 D980639405 C2 Everett City Landfill 2902 36th St SE Everett 98201 N-31-0003-000 Cl Everett Tire Fire 3002 Wetmore Everett 98201 DC,JW N-37-0004-000 D980722326 C2 Everson Goshen Dsp1 T39N, R3E, Sec 24 Bellingham 98247 CW N-17-0088-000 D980178883 C2 Factoria Pit (Sunset Park 132 Ave SE & SE 38th Bellevue 98006 N-17-0089-000 D980511737 C2 Federal Way Landfill - S 352 & 1-5 Puyallup Auburn 98002 N-37-5003-000 Cl Ferndale 7-Eleven $20938 2090 Main St. N. Ferndale 98248 NP,CB N-17-0090-000 D027429141 N Fiberlay Inc 1158 Fairview Ave N Seattle 98109 N-17-0190-000 D980975197 Cl First Ave Bridge Landfill DOT Landfill 7700 block of 2nd Ave SW Seattle 98108 DC LD, K N-17-5026-000 Cl Floral Crest Nursery 7432 S. 131st Ave. Seattle, WA 98178 NP N-17-5021-000 Cl Floyd R. Hunt, Inc. 3219 S. 259th P1. Kent 98032 NP,DD ' • . ECOLOGY - NWRO hazardous Waste Investigation & Cleanup Program SMIS Alphabetical Listing April 6, 1990 SITE HWCP ID EPA NO CATS SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-17-0092-000 D980723803 C2 Four Tek Industries 228 Av SE; N of Cedar Gro Issaquah 98027 N-37-0016-000 D009249475 N Frank Brooks Manufacturin Iowa & Orleans St Bellingham 98225 J6 N-15-0005-000 D980639959 C2 Freeland Landfill Hwy 525 Freeland 98277 N-17-0005-000 D980639280 Cl Gas Works Park(Wa Ntl Gas Washington Natu 2000 N. Northlake Way Seattle 98103 LC,LD N-29-0001-000 D009270612 N General Chemical Corporat Allied Chemical 655 N Texas Rd Morristown 98221 KF N-17-0093-000 D043023449 C2 General Disposal Corp 1415 NW Ballard Way Seattle 98107 4-17-0094-000 D980639702 C2 Genesee Landfill Genesee St & 43rd Ave. So Seattle 98118 N-31-0016-000 D980836092 Cl Go East Corp. Landfill Si Rekoway Landfil 108th St. SE & 39th St. Everett 98201 N-17-0006-101 D085197945 Cl Golden Penn Oil Company Western Pacific 2937 13th Ave. SW Seattle 98134 DC N-17-0096-000 D012425385 C2 Guardsman Products, Inc. Guardsman Chemi 13535 Monster Rd S Seattle 98178 N-17-0097-000 D980639165 N H & H Oleson Landfill NE 152nd P1 NE & SE 155th Woodinville 98072 N-17-0098-000 D980639967 C2 Haller Lake Landfill N 125 St E of Aurora Seattle 98133 N-i8-0012-000 D000711804 Cl Hansville Landfill 31645 Hansville Rd, NE Little Boston 98366 N-17-0099-000 D980639124 Cl Harbor Ave Landfill West Seattle LF Harbor Ave SW & SW Florid Seattle 98124 DC N-15-0006-000 D980639116 C2 Hastie Lake Landfill Hastie Lake Rd-3 mi swicy Oak Harbor 98277 J6 N-i7-0007-000 D980639595 L Hobart Landfill 23421 276th Ave. SE Issaquah 98027 GC,A6 N-17-0101-000 D010215184 M Honeywell Inc 5305 Shilshole Av NW Seattle 98107 LD N-17-0102-000 D980639298 Cl Houghton Landfill NW of NE 60th & 120 Av NE Kirkland . 98033 N-17-5003-000 Cl H.P. Construction/Arrow T Richmond Beach 19249 15th Ave. NW Richmond Beach 98177 GC N-17-0103-000 D980639546 N Ideal Basic Industries Edge of Town Grotto 98288 N-17-0104-000 D041580176 N Ideal Basic Ind-Cement P1 5400 N Marginal Way Seattle 98106 N-29-0015-000 Cl Impact Industries-Sulphur 1325 Hwy 237 Mt. Vernon 98273 NP,JG N-17-0006-027 Cl Industrial Office Complex 2955 11th Ave SW Seattle 98134 DC LD N-17-0105-000 D009491200 C2 Industrial Plating Corp 2411 6th S Seattle 98134 DC N-1770106-000 D007942733 C2 Inland Transportation Co 6737 Corson S Seattle 98108 N-17-0107-000 D980974729 C2 Interbay Old Landfill W Wheeler St & 15th Ave W Seattle 98119 N-15-0007-000 D048669840 N Island Disposal Inc. Disposal Inc. 525 Hwy 20 Coupeville 98239 N-17-0030-000 D009265521 Ci J H Baxter & Company Inc 5015 Lake Washington•Blvd Renton 98055 GC,SS 4-31-0017-000 D053823019 C2 J H Baxter & Company- 41 6520 188th St. NE Arlington 98223 GC N-17-0108-000 D980664585 N J J Jackson Septic Tank S 15671 9E139 PI Renton 98055 N-17-0109-000 D009:20076 C2 Jarvie Paint Mfg Co 760 Aloha St Seattle 98109 N-37-0026-000 D980'::508 C2 Kenmar Company Inc 6065 Kickerville Rd Ferndale 98248 N-17-0111-000 D98063-.'11 C2 Kenmore Landfill 68 Av NE, so. of NE Bothe Kenmore 98155 N-17-5019-000 Cl Kent Sewage Lagoons SW of S 212 St & 68th Av Kent 98032 NP J. CI N-17-0037-000 D009249509 Cl Kenworth Truck Company 8801 E Marginal May S Seattle 98108 DC N-17-0112-000 D980976229 C2 King 4 Coal Co Mine, A SE Newcastle-Coal Ck Newcastle 98006 N=17-0021-006 N King Co Airport- Maintenan 6518 Ellis Av S Seattle 98108 DC,RK N-31-5004-000 0041332552 Cl King Fiberglass Arlington Airpo 19105 63rd Ave. NE Arlington • 98223 NP N-31-0018-000 D980639017 C2 Lake Goodwin Landfill 18520 Frank Waters R Stanwood 98292 SC N-17-5015-000 Cl Lake Hills STP- former M Lk Sammamish Pkwy/S of Bellevue 98052 LD N-31-0019-000 D980833883 N Lake Roesiger Landfill 19619 Dubuque Rd Snohomish 98290 N-31-0004-000 D980511612 L Lake Stevens Landfill 131st Ave. NE Everett 98258 GC DN N-17-0193-000 Cl Lake Union Drydock 1315 Fairview Ave. East Seattle 98102 LD,DC N-17-0197-000 Cl Lake Washington School Di 8749 122nd Ave NE Kirkland 98033 6C N-17-0113-000 D980976161 C2 Landsburg Mine-Rogers Sea Kent-Kangley Rd & 268th A Black Diamond 98010 DS,NP N-17-0114-000 D003893559 N Lee & Eastes Tank Lines 2418 Airport Wy S Seattle 98134 DC N-17-0115-000 D010195725 Cl LIDCO Bayside Waste H 7113 S 196th Kent 98031 CW,JS N-17-5005-000 • Cl Lindal Property Lindal Cedar Ho 72nd Ave. S. & S. 196th S Kent 98032 CW N-17-0006-102 WAD009261991 C2 Lockheed Shipbldg. Co. Ya 2929 16th Ave SW Seattle 98134 DC N-17-5006-000 Cl Longview Fibre Co. 5901 E. Marginal Way S. Seattle 98134 BT,DC N-17-0021-007 N Lovstead Industries 3300 Airport Wa S. Seattle 98108 LD N-29-0006-000 D009252040 C2 LTV Energy Products 500 Metcalf St Sedro Wooley 98284 N-37-0027-000 D980511646 C2 Lummi Indian Reser. Dump Chief Martin Rd Bellingham 98226 ' ECOLOGY - NWRO Hazardous Waste Investigation & Cleanup Program SMIS Alphabetical Listing April 6, 1990 SITE HWCP ID EPA NO CATG SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-17-0006-012 C2 Seattle, Port of- Leckenb Leckenby Co. c/ 9819 46th Ave SW Seattle 98134 DC N-17-0024-000 D980835763 Cl Seattle, Port of, Term 5 26th Av SW & W Marginal W Seattle 98126 N-17-0021-012 Cl Seattle, Port of- Termina Port of Seattle Seattle 98134 DC KB N-29-0004-000 N Sedro Wooley Gas Spill/Le 220 Ferry St. Sedro Woolley 98284 JH,DM 4-37-5001-000 Cl Semiahmoo Resort- Property Alaska Packers 9550 Semiahmoo Parkway Blaine 98230 JH,SC N-17-0006-019 Cl Shell, Old- Term 18/Port Seattle, Port o Part of Terminal 18 Seattle 98134 DC N-17-0006-020 Cl Shell- Tank Farm 2720 13th Ave SW- Termina Seattle 98134 MT,DC N-31-0028-000 D980977383 C2 Simpson Paper Co.- Pulp P Simpson Lee Pap NE of S 3rd Av at 48th St Everett 98201 4-17-0159-000 D076651173 C2 Sinclair & Valentine, L.P 655 S. Andover St. Seattle 98108 DC N-31-0005-000 0980833727 Cl Sisco Landfill 7500 Wade Rd Arlington 98223 4-31-0029-000 D980976070 C2 Snohomish Landfill 68th SE & 118th Dr SE Snohomish 98290 N-17-0160-000 D980738280 N Sno-King Garbage Company 8901 Willows Rd Redmond 98052 N-17-0161-000 D980511596 C2 Southpark Landfill S Park W of 5th SW Seattle 9816B . N-17-0021-014 Cl Sternoff Metals 7201 Marginal Way E. Seattle 98108 DC N-17-0181-000 D047482757 Cl Sternoff Metals Corporati Daksdale Associ 1600 SW 43rd St Renton 98055 NP N-18-5002-000 C2 Stone Property 7480 Bucklin Hill Rd.NE Bainbridge Isla 98110 LD,BS N-18-0006-000 D980976328 Cl Strandley/Manning Site Ron's Auto Wrec 15225 Willow Rd SE Port Orchard 98366 CW BG N-17-0162-000 D980976047 C2 Strip Mine No 3 166th Way SE Issaquah 98027 N-37-0034-000 D980639264 C2 Sumas River Dump Site Tributary to Frazer Sumas 98295 4-17-0163-000 D+009249392 CI Sundstrand Data Control I 15001 NE 36th St Redmond ?8073 GC JS N-17-0165-000 D980664817 N Sunset Park/Tub Lake Dump S. 136th St. & 18th Ave. Seattle 98104 4-17-0021-015 Cl S. 96th Street Ditch 96th St & Duwamish River Seattle 98108 DC L➢ N-17-0006-023 Cl Texaco Marketing & Refini 2225 13th Ave SW Seattle 98134 MT,DC N-31-5008-000 ' Cl The Alley Shop 1321 Broadway Everett, WA 98201 NP N-37-0035-000 D078207362 Cl Thermal Reduction Landfil 1524 Slater Rd Bellingham 98226 NP,JS N-37-5005-000 C2 Thompson Property 272? Kulshan St. Bellingham 98227 NP 4-17-0006-025 D009258468 Cl Todd Shipyards Former Mobil Oi 1801 16th SW Seattle 98134 DC N-17-0168-000 D980738678 N Toomey Property Site 28836 164 SE Kent 98031 4-31-0006-000 D980639256 N Tulalip Landfill US Hwy 99 at Ebey Slough Marysville 98270 N-17-0169-000 D045335�42 C2 Tyee Lumber & Mfg Tyee Cedar & Lu 3737 A St SE Auburn 98002 N-31-0030-000 D009245259 C2 Union Oil of California 11720 Unioo Rd Edmonds 98020 N-17-0023-000 D988466371 Cl Union Station Site Metro- DSTP Int Jackson St. & 4th Ave. Seattle 98104 DC N-17-0171-000 D021820022 C2 United Construction Suppl 18298 Andover Park W Tukwila 98288 4-17-0172-000 D044605244 N United Services 3450 16th Av W Seattle 98119 N-17-0173-000 6044038073 C2 Universal Manufacturing C 14410 NE 190th St. Woodinville 98072 N-37-5004-000 Cl Unocal Bulk Plant $0042 Kentucky St. & Grant St. Bellingham 98111 NP 4-28-5001-000 Cl Unocal Bulk Plant, Orcas Orcas Landing Orcas 98280 NP • N-28-5000-000 Cl Unocal Friday Harbor Bulk First and Court St. Friday Harbor 98250 NP 4-17-0199-000 Cl Unocal-Seattle Marketing Broad St & Western Av & B Seattle 98121 DC N-18-0019-000 8680030931 C2 US EPA- Manchester Labora WA State Dept. 7411 Beach Dr. E Manchester 98353 GOODM N-18-0021-000 C2 US Naval Hospital - Ereme Boone Road Bremerton 98312 GOODM N-17-0200-000 N US Naval Station Puget So Sand Point Stat 7500 Sand Point Way NE Seattle 98115 GOODM N-18-0017-000 2170090060 C2 US Naval Supply Ctr- Drmo N of Wycoff St between X Bremerton 98314 N-18-0014-000 2170023426 Cl US Navy Supply Center- Orchard Pt/Little Cl Manchester 98353 N-18-0016-000 2170023418 C2 US Navy-Puget Sound Shipy 1st street Bremerton 98314 N-15-0010-000 9170023361 C2 USNAVY - NAS Whidbey Isla Hwy 20 & Ault Field Rd. Oak Harbor 98278 4-31-0031-000 2971590003 Cl US- Defense Fuel Supply P DFSP Mukilteo T 1 Front St. (by Loveland) Mukilteo 98275 DC,JW N-18-0010-000 D980639785 C2 U.S. Navy - Camp Wesely H WiChico-Wildcat Lake Unincorporat 98310 Y-17-5022 }00 Cl U.S. Printing Ink Corp. 17300 West Valley Freeway Tukwila 96188 NP,PE N-17-0006-026 Cl Value Plating & Metal Pal 3207 11th Ave SW Seattle 98134 DC N-17-0175-000 D980639603 L Vashon Landfill 18850 130th Av SW Sunset Beach 98070 N-17-0194-000 N Vashon-Nike Missile Silo 7 miles So. of Vashon Fer Vashon Island 98070 NT NED T N-31-0033-000 0009257841 C2 Verax Chemical Company 20102 91st Av SE Snohomish 98290 ECOLOGY - NWRO Hazardous Waste Investigation & Cleanup Program SMIS Alphabetical Listing April 6, 1990 SITE HWCP ID EPA NO CAT6 SITE NAME ALIAS NAME LOCATION ADDRESS CLOSEST CITY ZIP STAFF OTHER N-18-0018-000 D980639892 C2 VIP Landfill Kitsap Wy/Oyster Bay Bremerton 98314 N-31-5002-000 CI Wallace River Park Well 36010 Highway 2 Startup 98293 CW,AP 4-17-5011-000 Cl Washington Industries Northwest Plati 925 S. Dakota Seattle 98108 LD N-17-0176-000 D027400183 C2 Washington Natural Gas 319 S 3rd St ' Renton 98055 N-17-0177-000 D050822170 C2 Wesmar Company Inc 1451 NW 46th Seattle 98107 N-17-5028-000 Cl Western Batteries, Inc. Fisk Battery 1127 N.N. 54th St. Seattle, WA 98107 NP DM 4-17-0006-105 D980664668 C2 Weyerhaeuser Lab Pacific Resins 3233 11th Ave. SW Seattle 98134 DC N-31-5003-000 CI Weyerhaeuser- Lumber Mill 101 E. Marine View Dr.; M Everett 98201 DC,JW 4-17-0018-000 D067156489 N Widing Transportation Inc 24300 Pacific Hwy S Kent 98031 RD 4-17-0196-000 C2 Williams Lake Dutch Miller Mi Mt.Baker-Snoqualmie Nat F North Bend 98045 MR 4-17-0019-000 D009248287 Cl Wyckoff Co-West Seattle 2801 SW Florida St Seattle 98126 DC N-17-0025-000 D009252321 CI Zandt Brass Foundry 3400 Harbor Ave. SW Seattle 98126 DC,LD iac,L-vx Prose 5s+� • i k SC ► Wig ,-4y (Mkt FFVubL443) .C.-)E/le i AP P'i k'`r (p,,,,. .k- N P .1 ,— Aalrw43 6 -1 n?F' ektti 1 trm Ota;vvS t4...,- PP 0.--,+i . ate. ," Aot.rw,. Dairy, 0,4, ,- ,, PP ceatic Audubon • PLANNING DIVISION 0430Ciet2) CITY OF RENTON MAY 3 0 1990 Washington Nonprofit Corporation May 25, 1990 REC WEI) Mary Lynne Myer Senior Environmental Planner Department of Community Development 200 Mill Avenue South Renton, WA 98055 RE: Draft Environmental Impact Statement BLACK RIVER CORPORATE PARK, Tracts A and B Office Buildings Dear Ms. Myer, The Seattle Audubon Society is comprised of over 5000 members and is incorporated as a nonprofit organization under the laws of the State of Washington. The Society is dedicated to the protection, preservation, and enjoyment of wildlife, . plants and their supporting habitats, and to the wise use of natural resources. We are concerned about environmental issues throughout King County including the City of Renton. Our conservation committee has reviewed the Draft Environmental Impact Statement (DEIS) for the proposed development of Tracts A and B of the Black River Corporate Park. This letter summarizes our review and lists the concerns which must be addressed in the final EIS (FEIS) . EARTH: TOPOGRAPHY/SOILS. Section 3.2.1 As indicated in the DEIS (page 3-1) , both Tracts A and B were subject to prior filling in 1984 during the excavation of the P-1 Pond. A former Soil Conservation Service (SCS) inspector present during the filling activity in 1984, recently submitted a letter to the Washington State Department of Ecology (DOE) . The, letter (dated April 26, 1990) indicates the possible presence of hazardous wastes on the site, and requests an investigation by the Hazardous Waste Section of the DOE. It is important to note that the P-1 Pond is located downstream of the EPA "Western Processing" superfund cleanup site. . 8028 35th Avenue N.E. • Seattle, WA 98115 • 206-523-4483 Printed on Recycled Stock Preloading the site may press buried wastes into the water table. The installation of auger or driven piles may expand the migration of hazardous materials. No construction activity should occur on the site until investigations by the appropriate agencies are complete and all the potential impacts are identified and remedied. The FEIS must fully disclose the results the all investigations relating to potential hazardous wastes and provide appropriate mitigation to address all potential impacts. EARTH: FOUNDATION. Section 3.2.2 The most significant concern relating to foundation construction is the driving of piles and the potential impacts of noise to wildlife (see comments under Environmental Health) . There appears to be some inconsistency within the DEIS with respect to the proposed mitigation measures for driving piles. Please refer to the following statements of proposed mitigation: Table 1-2; (Tract A page 1-8) mitigation measure for noise: "Limit pile driving activity from August 1 through February 15, the least sensitive time period for great blue heron use of the site" . Table 1-3; (Tract B page 1-10) mitigation measure for driving piles: "None necessary." Page 3-4; Mitigation Measures for driving piles: "No mitigation would be required. " Page 3-47; Mitigation Measures: "Pile driving should be limited to the period from August 1 through February 15, the least sensitive time period for great blue heron use on the site. " The FEIS should clarify if the proposal includes a mitigating measure to exclude the use of driven piles for a portion of the year. The DEIS (page 3-3) indicates that pile supports are only needed for structures greater than two stories in height. Due to the significant impacts proposed by the use of driven piles, the FEIS should consider a project alternative where the structures are limited to 2 stories in height. page2 WATER: SURFACE WATER MOVEMENT/QUANTITY Section 3 .4.1 (pages 3-17 through 3-21. ) The following statements are from the DEIS: Page 3-19; "No detailed drainage calculations regarding existing flow have been made, . . . " Page 3-20; Table 3-7. "Runoff volumes have not been approximated for Tract B. " Page 3-21; "Tract A. Quantification of runoff impacts have been approximated due to lack of a detailed drainage plan. Page 3-21; "Detailed drainage plans have not been prepared for Tract B." These statements illustrate the lack of detailed drainage plans and calculations needed to truly assess the environmental impacts of the proposal. The FEIS must include a detailed map showing the location of the existing drainage basins and drainage features discussed in the text. The FEIS should also include a detailed drainage plan showing all proposed storm water facilities (ie. inlets, outfalls, oil/water separators, biofiltration systems, and retention/detention systems) . The DEIS fails to provide a detailed analysis of the potential impacts of accelerated erosion in the stream north of Tract B, resulting from increased runoff by the project. The DEIS (page 3- 21) states, "The stream is actively eroding the channel bottom and banks." The DEIS proposes to postpone the detailed analysis of this stream to a later date when more detailed hydrologic calculations have been completed (DEIS page 3-21) . The detailed evaluation and specific mitigation should not be postponed but included in the FEIS. The DEIS (pages 3-20, 3-21) indicates that the project is subject to the Renton Storm and Surface Water Drainage Ordinance, but apparently the standard requirement for storm water detention is not required due to a prior agreement. A copy of the relevant portions of the Renton Ordinance and the a copy of the agreement should be included in the FEIS. The FEIS must evaluate how the agreement has authority over SEPA (WAC 197-11) . The DEIS (page 3-21) refers to personal communications with Price and Berg. The FEIS should reference who these individuals are. The DEIS (Table 3-7, pages 3-20, 3-21) incorrectly refers to runoff "rate" (cubic feet per second) as runoff "volume" (cubic feet) . The FEIS should correct the error. page3 WATER: WATER QUALITY/RUNOFF Section 3.4.2 As indicated in the DEIS (pages 3-21, 3-23) limited information is available concerning the quality of water surrounding Tracts A and B. The historic data ranges from nine to sixteen years old. Although additional water quality sampling occurred in the summer of 1989 (page 3-26) , the DEIS (page 3-23) states that the sampling was limited. Additional studies must be completed to accurately determine the existing levels of water quality surrounding Tracts A and 8. The current water quality standards as administered by Washington State Department of Ecology (DOE) must be presented in the FEIS, with a detailed comparison to the existing and future levels of water quality surrounding Tracts A & B. In addition, the FEIS must demonstrate with a detailed plan and by calculation that the proposed water quality facilities (i.e. biofiltration swales) would be of adequate length and depth to satisfy the DOE standards for a point discharge. To simply state that, the proposed swale " . . . can be expected to remove between 50 and 80 percent of the pollutants associated with particulates" (DEIS page 3-23) does not guarantee compliance with DOE standards. The FEIS must include a design which demonstrates that the storm water discharge from the site will comply with the DOE standards for pollutant concentrations, not percent pollutant removal. The design calculations which substantiate the estimated performance standard should be included within the appendices of the FEIS. WILDLIFE RESOURCES (3.5.3) Buffer Width: The most significant adverse environmental impact proposed by the Black River Corporate Park is to wildlife. The most likely species of wildlife to be affected is the population of great blue herons nesting immediately adjacent to the site of the proposed office park. Although there are many aspects of the proposal which will significantly impact the existing heronry, the lack of an adequate buffer is the most obvious. As discussed in the DEIS (page B-12) , the width of a buffer is a function the how well the heronry is screened from the surrounding disturbance. Due to past clearing and grading activities on Tracts A and B, very little vegetation remains to screen the heronry. Due to the open view south of the heronry maximum buffer widths are warranted. The Washington State Department of Wildlife (DOW) Draft Management Guidelines recommend a 750 foot permanent buffer and a page4 1320 foot buffer during the nesting season. Inconsistent with the DOW recommendations, is the proposed Black River Corporate Park which proposes construction within 400 feet of the heronry. The DEIS suggests that a landscape planting of trees 20 feet in height will adequately screen buildings two to 'seven stories in height from the heronry. The DEIS ignores the recommendations of the literature and justifies its own proposal by presenting examples of heronries which exist with reduced buffers. None of the examples given in the DEIS represent a disturbance as large and tall as 'the proposed Black River Corporate Park. The dense tall trees surrounding the examples presented in the DEIS are dissimilar to the open buffer currently existing on Tracts. A and B. The FEIS must include an alternative which complies with the Washington State Department of Wildlife draft "Management Guidelines for the Great Blue Heron" . Breeding season: The nesting success of the heronries discussed in the DEIS were not measured, nor were any studies conducted to measure possible recruitment. Therefore no conclusion can be made that the colonies presented in the DEIS are truly viable. The mitigation proposed in the DEIS suggests no human access or exterior construction activities should occur during the period from February 15 to June 15. Recent research on Pacific Northwest Great Blue Heron colonies by Trowbridge and Bayer (in press. Oregon Birds) indicate that breeding activities may be present as early a late January. Research by Forbes etal (1985, Canadian Wildlife Service), on great blue herons in British Columbia indicated that the breeding season may extend through mid-July. The FEIS must revise the currently proposed mitigation to include a breeding season from January 15 through August 1. ENVIRONMENTAL HEALTH; NOISE: As mentioned above under "EARTH" , one of the most significant concerns is the noise and vibration generated by driving piles and the potential impact to wildlife. Page 3-46 of the DEIS states, "Studies have indicated the great blue herons will oftentimes become acclimated to an established level of noise intrusion, but will be more bothered by loud intermittent noises. " The DEIS (page 3-46) also states, "Given the relatively short distance from Tracts A and B to the heron rookery, there is a clear potential for disturbance to herons from pile driving operations during sensitive time periods." Through out Section 3.6.1 and Appendix C of the DEIS the noise data and response criteria are presented as decibels on the "A" scale (dB-A) . All of the data presented in the DEIS regarding noise, page5 including the measurements taken at the Black River and Peasley Canyon Rookeries, the noise level data presented for construction equipment (including pile drivers) , and the sound response data from the U.S. Council on Environmental Quality, utilized dB-A criteria. The "A" scale approximates the frequency response of the human ear. The frequency response of an avian ear (ie. a great blue heron) may be very different from the human ear, particularly for low frequency sound. It appears inappropriate to employ dB-A criteria to ,evaluate the impacts of noise on birds. The FEIS must reevaluate the potential impact of noise by utilizing a scale which approximates the frequency response of the avian ear. A "C" or "Linear" scale may prove to be more appropriate. The DEIS (page 3-46) utilizes a noise attenuation rate of 6 dB per doubling of distance. It is important to note that open water exists seasonally between the site of the proposed corporate park and the heronry. Due to the presence of water, the attenuation rate of noise is reduced by refraction, particularly during the cool morning hours. Therefore, a noise attenuation rate of 6 dB per doubling distance may yield inaccurate results. The noise response at the heronry may be much louder than the current evaluation suggests. Wildlife, including the great blue heron, may be very sensitive to low frequency sound and vibration. The DEIS fails to adequately review the potential impact of low frequency sound and vibration on the great blue heron. It is important to note that the vibration association with the construction of the METRO pipeline in 1987 at Pigeon Point in Seattle coincided with the abandonment of the adjacent great blue heron rookery. The FEIS must thoroughly evaluate the potential impacts of low frequency sound and vibration on wildlife. The evaluation must include the review of auger cast- in-place piles, driven piles, and air-conditioning or other equipment placed upon or adjacent to the proposed buildings. Table 3-12 (.page 3-44) of the DEIS indicates that the monitoring equipment used to measure noise levels at the Black River and Peasley Canyon rookeries was placed upon a "slow response" setting. A "slow response" setting will tend to miss the peaks of loud intermittent noise or "impact noise" and result in a lower dB measurement. As indicated above loud intermittent or "impact noise" may significantly impact the great blue heron. Sound level meters placed upon a "fast response" setting should be utilized in the FEIS. Under "Mitigating Measures" for noise (page 3-47) , the DEIS states,"if pile drivers are to be used, they should be modified or designed to generate peak noise levels of less than 95 dBA- at 50 feet (see Appendix C for information 'on pile driving techniques designed to reduce noise levels) ." Our review of Appendix C finds that the techniques recommended to reduce peak noise levels are based upon an article by Harjodh S. Gill published in 1983. It is page6 important. to note that the Gill (1983) article was based upon research conducted at the University of Southhampton in England. The DEIS fails to provide assurance that the english pile drivers recommended in the Gill (1983) study will be available for use in Renton. Our review of the latest revision (1989) of the "Rental Rate Blue Book for Construction Equipment" (Dataquest Inc. ) found no listing of any of the pile drivers recommended in the Gill (1983) study. It is also important to note that the sound levels measured in the Gill (1983) study where taken from pile drivers driving "Sheet" piles not "H" or "Can" piles typically used to support buildings. The information presented in DEIS provides little assurance that the pile drivers actually used during construction would be quieter. LAND & SHORELINE USE Title IV of the Municipal Code of the City Renton, under Chapter 6 "Environmental Ordinance" , the City has substantive authority to condition or deny approval of a proposal to assure a significant impact to the environment is avoided (4-6-22 B. ,C. ) . A decision to condition or deny approval of a proposal must be based upon specific policy. The City Code (4-6-22 E. ) lists the specific policies or refers to the codes, ordinances, resolutions, and plans which contain additional polices under which approval of a proposal may conditioned or denied. Comprehensive Plan: One of the plans listed in Code 4-6-22 E is the Comprehensive Plan, which contains policy specifically relevant to this proposal. Section 3.72 and Appendix A of the DEIS attempts to provide an overview of the Comprehensive Plan as it relates to the Black River Corporate Park proposal. The DEIS appears to have omitted portions of the Comprehensive Plan. The following two (2) relevant objectives contained in the Comprehensive plan appear to be missing from the DEIS: J. MARSHES, BOGS, AND SWAMPS OBJECTIVE: Selected marshes, bogs,and swamps should be preserved and enhanced for water retention, wildlife habitat, and open space. K. WATERSHED OBJECTIVE: To preserve and enhance water quality and quantity, water sheds should be protected. In addition, the following policies of the Comprehensive Plan appear to be relevant to the proposal but missing from the DEIS: o Activities must minimize pollution, there by protecting the public interest, welfare, health and safety, and the City's image. (GOAL II. , OBJECTIVE A. POLICY 1. ) (emphasis added) . page7 o Landscaping that will improve wildlife habitats should be encouraged. (GOAL III. , OBJECTIVE D. , POLICY 9. ) The current proposal does not appear to be consistent with these policies and must be addressed further in the EIS. The following is a list of Comprehensive Plan policies presented in the DEIS (Table 3-14) , in which the proposal is inconsistent and will result in a significant adverse impact to the environment in general and specifically to the great blue heron. o "Areas or strips of open space should be retained and enhanced to serve as buffers." Note: The natural buffers surrounding the heronry were severely altered by past activities on the site. The current proposal to enhance the existing buffers is inadequate. o "Wildlife habitat should be designated preserved , and enhanced. " Note: Much of the designated upland habitat will be lost with out an equivalent 1:1 replacement. The wildlife habitat retained to the north of the proposal is inadequately enhanced with an appropriate buffer. o "In unique and/or fragile area, desirable natural vegetation should be retained or enhanced." o "Natural resources and areas having scientific or educational value should be identified and preserved." o "Storm waters should be retained on site and then released at a natural rate and quality." o "Precipitation should be returned to the soil at natural rates near where it falls. " o Landscaping which is suitable for screening and buffering should be provided between use area. o Structures should be adequately set back and buffered from other uses. o Site plan design should provide for efficient and functional use of land. The current proposal does not appear to be consistent with these policies and must be addressed further in the EIS. page8 • Green River Valley Plan: Another plan listed in Code 4-6-22 E. is the Green River Valley Plan, which contains policy specifically relevant to this proposal. Section 3.72 and Appendix A of the DEIS attempts to provide an overview of the Green River Valley Plan as it relates to the Black River Corporate Park proposal. The DEIS appears to have omitted the following policy form the Valley Plan. : o "Development standards that ensure - high quality development and encourage compatibility of adjacent uses should be established for industrial, commercial and office uses.° (emphasis added) (Section C.3. ) The current proposal does not appear to be consistent with this policy and must be addressed further in the FEIS. The following is a list of Valley Plan policies presented in the DEIS (Table 3-14) , in which the proposal is inconsistent and will result in a significant adverse impact to 'the environment in general and specifically to the great blue heron. o . . . landscaped buffers should be established adjacent to public rights-of-way, between areas of incompatible land use, and along water channels and wildlife habitats. " o Parking and loading areas should be adequately screened and landscaped." o "Wherever ,feasible, unique natural features should be incorporated into development plans to preserve the character of the Valley." o Remaining wildlife habitat in the Valley should be preserved or its loss should be mitigated. o Areas that provide wildlife habitat, such as designated wetland greenbelts and stream corridors, should be large enough to provide suitable cover for wildlife and buffering from adjacent uses. (emphasis added) . o The City's 1981 Wetlands Study should be used as a basis for establishing the priority of wetlands for acquisition and/or protection. (emphasis added) . o A substantial portion of the Black River Riparian Forest should be preserved in its natural state as a unique remnant of the Valley flora The current proposal does not appear to be consistent with these policies and must be addressed further in the EIS. page9 1981 Wetland Study: As noted above, one of the policies of the Valley Plan is to utilize the 1981 Wetland Study to prioritize the protection of wetlands. However, Table 3-14 of the DEIS indicates that the 1981 Wetland Plan is "N/A" (Not Applicable) , which clearly contradicts the policy statement of the Valley Plan. Appendix A of the DEIS fails to mention the 1981 Wetland Study. On page 11 of the 1981 Wetland Study, the Black River Riparian Forest is assigned the highest value rating and is described as being considered the most valuable wetland in the City. In describing the site the study states, ". . .It is large, fairly isolated, has high overall wildlife diversity, high wildlife potential, and has extremely unique vegetational character composed of a complex of old riparian species. The interaction with Springbrook Creek and the P-1 channel detention basin increases its wildlife habitat value. " It is important to consider that the evaluation made in the 1981 Wetland Study and resultant high ranking of the Black River Riparian Forest was prior to the utilization of the site by nesting great blue herons. The FEIS must include and address the relevant portions of the 1981 Wetland Study. CONCLUSION: The Seattle Audubon Society continues to be sincerely concerned about the significant adverse impact the proposed Black River Corporate Park may have on the environment. The DEIS currently fails to provide reliable information upon which the City can base a decision. There is no assurance that the proposal is consistent with the policies of the City. The FEIS must address the concerns raised in this letter with further study, additional alternatives, and revised mitigation. Sincerely, GUIR) alit. Gerry Adams Vice-president. GA:JM pagel0 PLANNING DIVISION CITY OF RENTON REQUEST TO WITHDRAW OR SUPPLEMENT MAY 2 9 1990 BLACKRIVER CORPORATE PARK DEIS.ATTENTION: City of Renton and members of the EnviFECEIVED l Review Committee We, the undersigned, respectfully request that the City of. Renton immediately withdraw the draft environmental impact statement, issued April 11, 1990, and reissue the document at such time that the document is completed in draft form. Alternatively, the City, of Renton may prepare a supplemental draft environmental impact statement. Document was released prematurely The document in question, the Blackriver Corporate Park DEIS, contains numerous errors in fact and omission. While the purpose of the DEIS comment period is to identify these errors of fact and omission, it is reasonably expected that the document would contain sufficient information that would allow. the public to review the proposal and understand the Most significant and vital information concerning the proposed action, alternatives, and impacts. The document in its current form is incomplete and does not allow this, The errors in fact regarding this matter appear to be straightforward. However, when faced with the insurmountable burden placed on the public because of the preponderance of errors of omissions it becomes impossible by reading the DEIS to ; fully understand the facts relating to this proposal. At the public hearing on May 1, 1990, preliminary comments were provided to the Environmental Review Committee. These preliminary comments clearly outlined omissions in the City's environmental review. Those omissions include, but are not limited to the following: o Failure to include citations of references mentioned in the text; o Inclusion of references that were erroneously stated as references on particular subject matter that were in fact not related; o An incomplete overview of the City of Renton Comprehensive Plan and Green River policy plan. There are extensive typographical errors. A more accurate description of the document is "preliminary draft" or "rough draft" EIS. The release of this document was premature. 1 .w; I. Burden on the public The public is recognized as having generally more limited resources. But the environmental review of this document is dependent on public participation, as is all review under SEPA. It is clear from the effort the public has undertaken so far and the testimony heard at the public hearing on May 1, 1990 that the inadequacy of this document is to the extent that an unacceptable and unrealistic amount of effort and cost must be borne by the public to correct the document. The City of Renton is responsible for preparing the DEIS. When the document is as incomplete as this one, the City will rely on the public to complete it for them. : This is an unacceptable' burden on the public and shifting of responsibility by the City. Effect of incomplete document at this stage The inclusion of omitted information would allow an understanding of the proposal, alternatives, and impacts. An overwhelming number of corrections and additions to the document will next be published in a final environmental impact statement. The review and comment period for the public at the final EIS stage will be seven (7 ) days. In seven days the public will need to review and comment on an insurmountable assemblage of information that we should have been reviewing at the draft EIS stage. ' The existing document effectively removes the public from the , review process at that stage.' ' Comments Submitted Separately Although we strongly believe the DEIS should be withdrawn, as set forth above, we are submitting, separate comments so that our comments will be part of the formal record. Those comments detail the inadequacies of the DEIS. For that reason, the errors and omissions referred to above are not repeated again in this letter. Conclusion The Blackriver Corporate Park DEIS is incomplete, inadequate, and has been released prematurely. Under these circumstances the burden on the public is beyond reasonableness. Elimination of the public from any portion of, the environmental review process must be avoided so that we are all assured that our 2 protection provided under SEPA and the City of Renton environmental ordinance is available and realized. Submitted this D'if - day of May, 1990. Seattle Audu on Society Citizens for Renton Robert G. Sieh Wildlands Preservation First Vice President Susan Krom, Director AGMTS\AUDU-2.590 ti 3 Susan prom 1/4-.\..t..,1,.,:..., L_ o 10 ,? :' 3640 Ashworth J� .,,. e _;--s.z`,, _ir"►—. -. " t ✓� ,' Seattle, 4N�1 98103 if), 04.J 1 °;T= - 4:- Co �° '.7 k +4 use , "�4r` 25. • • 25 MAY ) e; ?,r. 2.5 m't-=-'; Kam\ fi 200 �i `t d • ki n c L.--fi 6 e1$a S`S` t 4�• _ y Washington State Senate Olympia Office: Home Address: 109-B 1n •itutions Building Senator Michael E. Patrick 18809 139th Avenue SE Olympia,Washington 98504 Renton,Washington 98C (206) 786-7692 47th Legislative District (206) 631-6036 SCAN: 298-7692 • SCAN: 277-7235 • April 24, 1990 UY )\ Mary Lynne Myer Senior Environmental Planner Dept. of Community Development 200 Mill Ave South • Renton, WA 98055 SUBJECT: Blackriver Corporate Park Environmental Impact Statement . Dear Ms. Myer: I would like the heron rookery in the Blackriver Riparian Forest to be preserved, and recommend that the City of Renton critically review the Blackriver Corporate Park EIS, dated April 1990, considering carefully the comments from the Citizens for Renton Wildlands Preservation and Seattle Audubon Society. • Thank you for your consideration. e . Sincerely, Michael E. Patrick • State- Senator 47th Legislative District MEP/eb cc: Citizens for Renton Wildlands Preservation Seattle Audubon Society commit-reef, Fnr•.•,n••Intl 1'i ,.,,, . r'.,,.....,.,,,. .i r ...,-. . �- KENT NEWS JOURNAL a _ EDITION 0 0 Copyright 1990 Volume 102, No. 105 Wednesday, May 2, 1990 Serving South King County, Washington 25(D • Kent • Renton •Auburn ., . .y�� expansion .„,.. _ Ic U\ ,.. . 8 K a , . . . . _,t,...„,,..,.,„r„..4..,,..,,.,,,..,,.r,,„.,..,., .„,,,. ---°;›,..::-... , I .,,,t ,,,,,,,, -....,,..k..;.t..,.„„-,, ,,, ,.,..,., .,.„.„,. , , .,....,. threatens erons 4 ... ,, .. 14' ,p,' .1.: ecologists contendt ,.• �' "~ who heads a groupcalled Citizens X�._ _ ' By KATHY HALL for Renton Wild ands Preservay, _ Staff Reporter Staff photo by DUANE HAMAMURA N tion. 3 Several dozen environmentalists The bushy island is a good heron Susan Krom confers with Gary Adams at hearing Tuesday ,. ., told Renton officials Tuesday that habitat, she said, "because it is rel- ' they risk losing one of King Coun- atively undisturbed." She said Herons • ■ Lois Nordquist, who lives in the 3 i r - '" ,..� «• ti ty's few remaining heron rookeries Renton "risks losing it entirely if apartments above the office park, .� ' .�, if they allow expansion of a nearby you allow it to develop as outlined Continued from page Al said, "Renton should feel fortunate J '. " office park. in the EIS." Society. State and federal wildlife the great blue heron a ma nifi- Illr -�. `�. _ 14. ' ,-, ,, Renton has an "extremely valu- The proposal outlined in the draft regulations require between 660 cent bird, has chosen Renton." i . •';A "' .F '' '", �� •• .4617 ;,+• r, able wildlife resource," Gene EIS is for two clusters of three and 800 feet, he said, and some If the birds' habitat is destroyed, "+i."..` f' •.4� 't I: gi.,...,— . *< Hunn, president of the Seattle office buildings each along Oakes- experts recommend 1,600 feet. she said, '`you'll never have anoth#' ; , "` ' • , '� ' °..- Audubon Societ told environ- dale Avenue Southwest near Met- a • '"z, ," ��_ :4 y„ ;: Y� Not only would the office build- er chance to bring them back." " `vli; ,.' a ,,, .. ;' - , -.4.r,, „'W mental planners Tuesday night at a ro's Renton sewage-treatment ings be too near the nests, he said, Nobody knows how much distur- •il - _ `"•' ' public hearing on the draft environ- plant. bance the birds can withstand, t tx .. t`,; --poi- i..- mental impact statement for the The tallest buildingwould be but past grading and logging has ` •� Ppractically eliminated natural buff- Munn said. "There is a risk and a . -',°. r'• . • ,. next phase of the Blackriver Cor- seven stories tall. Tht concerns ers in the corporatepark. gambleallowing dis- • y,•.Y .. r - �p involved in k _, + ., : , ` 1,- �_ ,,:4. . porate Park. Krom, because herons like to be on Two representatives of First City turbance this close," he said. �_r " .• f� A 9, ..",' *, ---ii. . 4. . ,-V • r._- `� The decade old corporate park, the highest spot around. Developments were in the audi- The site has already been dam- •" , on the old Golf Course, The seven-storywould _ » Earlington building ence, but didn't speak. aged by illegal dumping and to '""'" c ' - contains S rin brook Creek and be between 90 and 100 feet high, p g P g g ;+ y ,r ,,, _ "--�, . " P gAbout 50 citizens attended,and a ging, said Dee Boersma, a zoology Jt M 1,,"7 ' ,••^ A„ . `' "» ,,,•A#4- • ,, the old Black River channel. and the highest cottonwood trees dozen spoke against the develop- professor at the University of ,„, ,o k . 4' _ : ..", .� "`< The heron rookery was created on the island are 140 to 150 feet. meet. p gWashington. "Herons are quite � '; ' ....is ' / - + - �` _ , in 1984, when the United States The cityproposes at least a 400- ,- :� , '.-'- 4 *"„ p p Written comments will be sensitive to disturbance," she said. ,r tit:Jo,"`' -+ ,. g " , ^a "� ' • - • - . Soil Conservation Service created foot buffer etween the develop- accepted at City Hall until May 25, The city proposes 400-600 foot ' is .i n, • a 4\ . i •• , a pond around an island with tall ents, on thepond's south shore, said city planner Mary Lynne buffers, phased construction, " " it, .. t a.J _ ,t... , cottonwood trees. and the rookery. Myer. She said the usual comment locating the lowest buildings near - -J s•: Since then, the rookery has That isn't enough buffering, said period had been extended two est the rookery and possibly mov- - File photo grown from three nests in 1986 to Joe Miles of the Seattle Audubon weeks. ing the seven-story building further Blue herons' nesting habits are at the center of the Blackriver Corporate Park dispute more than 30, said Susan Krom, See HERONS,page A4 The Audubon Society's Gerry away, preserving flight paths, - - - --' Adams criticized the draft EIS, requiring earth-tone buildings saying he found a number of factu- without reflective glass that could al errors and "I would have liked confuse birds, and imposing a con- to see this in a lot better condi- struction moratorium during the tion." spring nesting period. S • ®nth End looms as :`next eievue F $150 million corporate park_ spurs multi-story boom in office buildings • • 1` } RENTON tilt up concrete construction is categorized Q By KAREN MILBURN as Class B. Projects like First City: Development a•t•""r • st.etollv. . - ( Dean Erickson, director of commercial • Corp.'s $150 million. Blackriver Cotpo-. I portpo„t �� �.pw•�•�� Properties for Blackriver Corporate Park t'•rate Park'may turn South King County says the South End is becoming another .. .fi:31...,1 �, F office market into another Eastsidc.,'. •�► b .Bellevue-Eastside market with the distinct ;;—L advanta a of affordable housing and a ,.. ;+.., .or years;'South King.County's office`, Norte'Hut :w4 . g - F ;,'_,, riarket.was predominantly single-story? TUKWI cheaper labor poo strdr A major factor in the changing charac buildings with combination office and diS ter of the South King County office mar- Japa tribution spaces. Now upscale,mule story �:•r.buildings are revam in the market-:, `" %e ,:if,. •' ket is" transportation,. says .Michael . mra g P g, SATAC ; ,� Example: First:City Development :r Hemphill, a partner at the Andover Co in r ' ^ s r Kent: ` r Corp plans to develop nearly all remain _ plenty of parkingthere. to la 4 ., r , R.Cnmbaum•map Freeway access,p ry ing land at Blacknver Corporate Park in - ?x x•� Renton' classA•A#office,space`Theme Office. -spaca'ciass rs determi*by type in contrast with increasing traffic conges-_ C { 'parle '' scliedploil* completion,:1i fo , of con ructrgK Butld,Ing� •-°sfni ed rtron elsewhere gf all pea a role in build t k 4. � 411V11,*Sr j 7;:C/itti SteeEarkke9..ref a as' n;while-I-.Contlnae-on"p �e 16 __ ';'Y= :_.._ ':i V ,.,ri�r MAROH M.1990 PUGET SOUND BUSINESS JOURNAL Continued from page 1 says project manager Phillip Wood. South King County, which includes jogging trails and health clubs are becom- - ing the office market. Other developers too are adding Class Renton, Tukwila, Kent and SeaTac, is ing the norm, Hemphill says. First City Development's investment at A office space to the South King County attracting bigger and more image-con- Gateway Center project manager Phillip Blackriver Cdrporate Park is to include an market because a new breed of office ten- scions office space tenants, Hemphill Wood says the company decided to devel- additional six Class A office buildings, ant is demanding nicer interiors and more says. op its 75,000-square-foot complex each three to seven stories, and one busi- amenities, Hemphill says. The market is seeing average tenants because of burgeoning interest in this type ness park building. First City has already According to figures from the Andover who need between 3,000 and 5,000 square of space. built 290,000 square feet of other business Co., a commercial real estate company, at feet of space. In the past, 1,500 square Bedford Properties, the developer of and office space at the site. least seven different office buildings are feet was an average tenant size,he says. Gateway Corporate Center, declined an Construction on the first of six planned either currently under construction or will Hemphill has leased office space in opportunity to rent its first Class A office office buildings — a 75,000-square-foot, begin construction before the end of this South King County for several years. Last building to a single tenant because it want- multi-tenant edifice — will begin next year's first quarter. year alone he leased 225,000 square feet ed to test the multi-tenant market, Wood month and cost$9 million. Together those projects will add of office space. The entire South End says. Now that 60,000-square-foot build- In addition, Bedford Properties Inc.'s 491,000 square feet of rentable office market absorbed about 500,000 square ing, completed in July, is 77 percent Northwest Region is adding a three- or space — much of which will be Class A feet of space in 1989,he says. leased. four-story Class A office building totaling —to the South King County market. Newer South End buildings are adding Woods says that lease-up rate is on tar- 75,000 square feet to its Gateway Corpo- The tallest of the new buildings will be typical upscale office building amenities get and the company is going ahead with rate Center in Tukwila. Construction on five stories and only two of the projects as well. Fancier lobbies, building confer- the larger office building in fall 1990. the new building will begin in the fall, will be one-story projects. ence facilities and campus settings with "The South End is changing from a Boeing-dominated market. Firms that used to serve the South End from Bellevue or • ---- .___ ......_... -._._ downtown Seattle now need a South End office,"Woods maintains. `�.11. Hemphill agrees that the South King p County office market is becoming less t reliant on Boeing but says the aircraft r� ' 1 manufacturer remains an important inftu- R once on the market. t According to Andover Co. leasing fig- The urcs, absorption of non-Boeing space increased by more than 50 percent in each 1swthe9nd t of the past two years. Multi-tenant office � G users now occupy 2.5 million square feet `i "All Time/7 =± of space and Boeing leases 3.5 million _ .I r .: square feet. r Last year, when the South End market M Best Seller o n leased 500'000 square I of office space; 250,000 of it was to the Boeing Co. • 1` How�to Sell In the past five years the multi tenant i '. • i!,* absorption rate has averaged between • 150,000 and 200,000. Boeing has leased � , • between 300,000 and 1.1 million square ,� � ` �, Comes to Life feet of office space per year during that period, according to the Andover Co. V . : Although the South End still relies ` i heavily on the Boeing Co., the increase in ' ' •;:lr=`1° Tom Hopkins, the nation's multi tenant, Class A office buildings does put the area in the same league as the leading sales trainer, steps Bellevue-Eastsidc market. rrBlackriver Cmeout from between the pages fr as say markedheSoutEndhso to teachyou his renowned advantages over the Eastside. however. i • He cites affordable housing and a cheaper .# ,".w- selling techniques 111• labor pool,among others. And rental rates for office space are 41104 than on the Eastside, although that lower.-�_...rti�.,,.>. _ ,.. . ,,,...,_ . person. may change. Current rental rates average $15.50 per square foot — 20 percent below average .... . , Eastside rates,Hemphill says. i But with completion of the new build- ings, he says, rates are likely to jump to $17.50 or$18 per square foot. The book's tried and true selling skills have made it a "Sales Last year garden space office absorp- Manual" among top professionals who refer to it for such crucial tion on the Eastside totaled 785,623 square feet. In 1988 it was 587,524 square knowledge as how to contact the client, get referrals, prospect, feet, according to Don Fosseen, data bank handle common objections and close the sale.Join Tom Hopkins coordinator for Coldwell Banker Com- mercial Real Estate Services in Bellevue. for his hard-hitting seminar on selling. At the end of 1989 the vacancy rate for Eastside garden office space was about 20 percent,he says. Thursday • April 26, 1990 • One Day Only! In the South End market, the office vacancy rate for the 1989-90 winter guar- The Westin I Intel ter was 6 percent — down from 14 per- 1900 Fifth Avenue • Seattle, Washing(ot1 cent during the same period in 1988-89, according to Andover Co.statistics. Sponsored by : Currently the tallest office building in Don't procrastinate!Register Today! South King County is I1 stories but the BUSINESS • vuccT SOUND • - mid-rise mentality is becoming an increas- JOURNAI. g reality.ing1 South King County today is what Belle- "' vue was five or so years ago, says Todd • Cromwell, owner of Cromwell Marketing &Communications. fl _ _ RENTON • _ y . -y RECORD CHRONICLE EDITION • ©Copyright 1989 Volume 65, No. 194 Monday, August 14, 1989 Serving South King County, Washington 25(D Parks and save heron rookery By PAUL E.McKELVEY around," he said. inhabiting the area, said Mayor Renton would receive a total of Staff Reporter If the bond passes, the.City of Earl Clymer. about $3.5 million for several Renton will try to buy the land, "It depends on the wildlife open-space projects, Artz said. Renton's blue herons will have located northeast of the•old Ear- there," he said., "Maybe it would. Kent and Auburn would get about more room to spread their wings if lington Golf Course. Renton could be best left in its natural state." $2.7 million each. King County voters approve the turn the area into la buffer between The land near the herons, To finance the bond, taxpayers open-space bond on the November wildlife and development, perhaps referred to as the Black River For- ballot. a park, Artz said. esr, is one of 116 acquisitions and $100,000 their homes are worth, Development would be prohibit- It is unclear who owns the 40 developments the open-space bond said Shelly Anderson, the Renton ed on about 40 privately owned acres in question, but Renton offs will fund' if approved. The King resident who nominated the Black acres near the birds' rookery in vials said at least part may be County Council approved the final River Forest area for inclusion on west Renton if 60 percent of the owned by First City Development list of projects at its July 31 meet the open-space list. electorate votes for the measure, Co., the Seattle developer current- ing. "It's a pizza-the cost of a pizza said Keith Artz, manager of the ly building the Blackriver Corpo- Total cost to county taxpayers to save the herons," she said. county parks division's open-space rate Park near the rookery. . will be about $117 million, with But $624,000 is not enough to program. The city might create a park on $624,000 allotted to Renton for buy the average 40 acres in the "This could very well be the key the site if studies, indicate a park purchasing the Black River land, area, said.a representative from to making sure that rookery stays would not harm the creatures Artz said. 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',i. ,sf '•,gig vit, 9*c s' ! ri vi,'-''' ' } .14 `+ 1., r �, � '4' I ,# .y �� 7" t t 1 f f' $t A 1- yr ti ia n.S:. b f a � w t' K' r .�;. 4 t r - t ��.. tE�' p t ^4tt't 1h,#t, . {,tt1 €, 'y 4 �i t f `4 , j t / i'{t ' ' ; f I' rt . ,t 'TJ �'Y� fCt ��� ��!. 7-i; f � - f it";f ��+�.< �, t`rf � x •§� ft „� .1�a�"'A"i�.�ti '� � ill,�.�1��, � ���s t �J�� t jl�.. �'. r:, r� t t+ ,4 ill,' i fj, 'O trti . i,� ,i, ' y :,, fit t 1r ,. ,� rt ;z 'fi fit '' , y�4�� �� �t��,�s . f r�, ,� n �+'�ft� tS ' r t :�fifl 't� TOT/ ..F,�� �f��i""� � ''7' 7< ;f , ,f'L.,t t I.r;. ° i'd a ;.1 ,,, r ,,'r'. s: ; t , j('it' + :jt,+,, q ,�� "' r f,c4 "i. 1 .(+ tl s E,, � ��.�,t .'f`�. � t t � r� 1;G ti' i K t b !.,I'�' �y<� t.,t+. t ',f1' -;,��+�o<ftf;r,f�a f,+tS.. �+fy ;.� �}, ,f Fp �t 1„s 4N y rQt t ., r Z.l } .E1 3 'j,Llet � v ?t§ tZr�[!!_'� i ix+r t' '. R d '4' yZ eY' t if ,. t t5i4 jt ,{�RS.t'I•i...,,, ;. l �'�'. + (1 �i 6 J I,�<£i. •• R, +tf 'r. t Y. y Ij 7'. tR'fJ .•"fQ r _ �' ,- � i �',��a fd �'r,, � 1 ,� <},� t � r� r a"``X� a� I� J #I hy�� .if '� �' '{r,s.+, P ��';�r °t:+.s. .> •r<aCZ�a �dJ� iat�,' $'!ti;�1'+<'L�.��:'; w,re't ��.f���lf,�:��.11�r��.1. Staff photo by DUANE HAMAMURA Heron enthusiast Susan Krom and'a fellow Boeing worker watch Renton's resident herons in Black River Forest area Herons . . . . Continued from page Al city zoning coordinator. "The channel,a drainage project running the city in 1987 during negotiations First City. development potential is something through the Green River Valley. over zoning for the Blackriver Cor- "The market value of the dirt is ;That would have to be negotiated Dozens of herons migrated from porate Park. substantially higher. You're ;put." the rookery yin July, leaving about Renton needs additional land to looking at prime land," said Ken u 'Approval of the bond would pre- nine permanent residents to wait preserve the environment of the Bellamy, 'the vice president in :vent business complexes from fur- until the rest 'return for next Febru- skittish herons and their entire food charge of the company's commer- 'ther disturbing the birds' one-of-a- ary's breeding season, Anderson chain, said Susan Krom, a heron cial division. kind habitat, Anderson said. said. enthusiast who works in an Renton officials said determining "This is not the place for offic- The area to be funded by the already-completed section of the the sale price of the Black River es,'' she said. "You can buy land bond is adjacent to two wetlands, Blackriver Corporate Park. Forest area would require further ltnd build offices everywhere. You which are nesting and feeding areas '"I'herc's a whole ecosystem study and hae�Tlintr. `',..n't buy a ;;Chin ;w.ceiy." rur herons and other migratory there," said Krom, a Boeing tech- "We think the value of the prop- k', Renton's herons nest about 80 birds, Artz said. nical writer. "You need to provide erty will depend on what can be ,Feet off the ground in three cotton- First City ceded the 20-acre pond an area large enough to support a built on it," said Don Erickson, wood trees on an island in the P-1 surrounding the herons' island to population." i LIIuIuI!P ci/`il 90 Flu..r,4- laac FtA. -- 1.r��l-o/sto,y ti. .- . Nest in progress, co not c:sturb '411111e. •N.k1-0?.r..;:-7;-..:;;,,,...1,,,I,..e.til'154-, --,.. • '.4 • '7",- - •,-4 :,_,. ._.1.,,,, - -;.- -.7r. - • ..- •.:- '.,y�_, � �,. • .t .. � `1�. ` 4 �S ' 'e--� be �' 4. tit' *,:t!*.V..', ,"if: :°.--tWt9.,-..--*L'A;e0. 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'. ... g. :- .•, -:. •.V. `'.4 ,,-;..,,„.:- tn 1. r -»�, ./. k • • ' j ki.. a fr •• ivy "c Y J JI►'F !. !t', - y -,r. 1 .r•• c' I. µr1� r-r4'c4Z '4f•:,...;., ,:,:r_ -gs � a"' "..C'Y , m`.d Y 1: L.d �m • ei-. �`, �, 10 ,C.�;r t y t. a• •Y.'.y; iLA t}M „s ? ;�+j{, ; r,�` '_""� • —'ll`• M1i ► artr Sri". + ;'t r f'i'° • + fw".' ♦ �► rid ry,' _r,- '• �.R,r?r_ ' i' _� % .11cM • � "1111.'J : `•'�t ►.. ` . laver a. .�. L �. 's `;t° ! !t e • �3S.ya • • • � ~rtif-4 i 1 : y," !'st0. k.1, Mw i. trY`' • ; :„t , ur. Fr ��- L fj „ r t .0p.,, . ..., , - .. A pair o1 herons (above) pre- 1 24 �,Kc ^�+•-� �' ;1-? tatpare to swap duties. One rir ' � •'.. •Y7,' 4•^rr brings a new stick for building arip � +h ,+xr' � s ► z the nest and the other sits and �• ' �" k a x ' ` a<'°3 �X�' • a}�— *Y Z puts it in place. These birds ', .� c ,r`"=_ . �' ;,, _'' •+ ';� - areparto' arookeryo' 2: = } 4 x.. +;r 7 Z heron nests scat�eted amon- , < : '° � -f 1. .> _ cic the cottonwood trees (right) in 4.ry,�• fr `" ,i '"K ii p,, .: -, ..„...:i O a man-made wetland just west K '� �°t sf :: 1.0„, r o` the intersection of South- ` �,, �'.. 7,r �,� �: E west Seventh Street and ,....:"r. -.A - '3 - ,J - Oakesoale Avenue in Renton. 1 t fi n 1 S Q Citizens for Renton Wldiands .`t', '1 •4 .. , • 1' ,t '. 1••w' �' .--. d Preservation is a group formed „n . ar '� '.+ f .. k.t -` ' t/> last July hoping to buy nearby '3' t .may,•' •7t•" ""'Y* W land and preserve it as open ": •-"`� * , y< ,Jr j +'r Z space in order to p•olect the .-,r,,• "s` ti` 0 rookery from development. + t ,2•.1 `�` CARY TOLMAN'2 4 Moos • B 2'''''Stlnday:March 18,1990-- - '"''The Seattle Times/Seattle Post-IMeliigencer r-- - L i,,,, ,�. •. it ♦ ai- 7- ' *.* ` .. ** • 4 +.•o'r. •• .. ..ate` A. -es t '.'".• t c� a 'y,["y,Y•_ ":3-/ P 8. � , �,r y y ,. Y r gp m t t :ti�3 Kia' l! ox. 1 Y 1 '`.N" . . - $f' �y r J6 j'fi 1.t N 7l r fill' s xlS y „xf+0 �i/Id g' G y & # 1� '� k :14 b..it ' i P-- E}» , r • •j w - ,��,(_A`f41' +c4, f�gr .Y ••'', Q S d • b. !E * ..�l:�y t� :ta34;l'i'.- '.2.-f- '*-, i ..4,k,.. -:!"-;-.9-• 4„,,, .-.. '. .•4,rf•-. •Ilt. 4,,;,1,f;: 4e.'-'•77.' Is' .14,,..;...i.,..,,,,;,,..-.72-••• . !. . ..... . .inihlorse .... .....,.:. .',.• 47 `r. -" ' i •S r ►. L .1'i' y • . 1'' �U � t ..1 . .S. �F ^ • e !- t '* g. `.. ' ,t tA �.'f3i. + ,..aaR 4 F. � 4, w • P + . w!'at "g"9.,.7'; .:•. axe, ,, tk. ' d''';,'"•` ,A*—', g .', t 4. ,. Sy. '• t rk'''F 'r. ,t' 'e% 4 t "i ••',,, +�}„,t+ ' :•fit • s*: '.' :•fii� '�% £inn t P 'Si" x , ,,, r� LR Lr• - g'xr �a py. r •R� y �'. " ,,'-4k.' •,, 4',), ,,,o,,f . ,I ,0 .,....04t, ,0 , , .40. , . . -:. ` .. • .tom.„r, t..th • 0'+ Y l ''.wnT .-,.,,•. *..�M-f' 1 +�t• L fig, '.•,I... �,,.#.: �t� 7a' q•�+:rri+.�, ..•..y �� .:ate „- ' AL-- ' i 11..- fii :+a ,K;�j "z i` `` - "S` : nY:,'+ `° s,"+ .�a i W ...a •,• - Wrnva S.INyra/&wme iL,w 811I Hirtslnplller,superintendent of Renton Parks and Recreation,left,and Phyllis Vlpai use viewing scopes to watch a heron rookery. • 4, .A x• , ,r.,,,1�,., ,i„,• .,r,,.4e north of the rookery and the tin rescuers urn , ,. -- .• +,t Al4. - " of Renton has promised 536,000 ,cam, more,askinb prices for the 20 to ,- 30 acres have reportedly been in ;, s w excess of S2rW� E ,1 to save heror „ ' r..#- ,.���.. w r f ..it a--�� ,� ^� • `"� mtende nt o.recreation. was • ,: , ."'+ critical time five years ago.Now -rookery, in:_ �-ar e arc .o rtsTj f• i h rv+^...4-f..!• it's a disaster time." ,-,,, ;� Also o• hand were former t4a . +a.a" U.S.-Rep. Mike.Lowry and•.state. .;< � t. at't i d w x � ....Sen.' Mike-Patrick,-:R-Renton;• f by Bill Dietrich •••view the birds'plight. ;., '�- a;. ,• .._ ,,,, �' both of whom said S53 million ' Times staff reporter . The pond and preserve,in the 7, .'<, : .,� ,' ,,,. Di. , appropriated for land acquisition . former!channel of the now-de- - ••rya n,* sr, i.::, , -- by the Legislature. this year RENTON One of the re- funct Black River, is hone to .,-,,,,„;• r": 1 ,1 should help acquire such sites. gion's newest and biggest heron about 65 breeding herons, 50 - The Renton rookery is on a nesting areas is as besieged as other species of birds,fish, bee- .T- a+"'• , ". purchase priority list. the Alamo, and it remains to be ver and raccoons,Audubon natu- i. -1R"`'--�,-+ "This is only going to be seen if money from King County .ralists said. ,f• f""'" • " -+ r :c r • protected by putting it into some taxpayers,Renton and the Legis- The Renton city refugr near kind of public ownership," said lature will rescue it in time. the southern e-.d of Lake Wash- Lowry,who co-chairs a coalition In the past five years great ington is a rem:nder of what once A male blue heron flies to Its nest In a rookery near Renton. seeking $450 million over 10 blue herons have built more than were four square miles of wet- years for land acquisition. 20 nests on an island of cotton- lands in the area. sewe-plant and a 13-story build- and filled much o'the property, Preservationists are in a race wood tees.The sanctuary,result- Much of that flood plain is ing under construction_: but construction was halted by against tim+ however. Soaring ins from the tree::^::o;a drain- now a business park. The over- First City Developments has the state Department of Ecology , land values are,reducing the age pond by the U.S.Soil Conser. :looking hills, which an historian proposed developing an addition- because necessary permits' had purchasing power of such money Yawn Service in-1984,• is evi-. told onlookers once had cedar al 150 acres around.the,nesting not been obtained. Environmen- by up to 25 percent a year. dance wetlands can be rebuilt.'-i -trees 15 feet thick, are now area with two seven-story••office. tal-impact statements on the of- Agricultural and business lob- crow, however, new-develop-• :crowned with apartments and buildings and a five-story parking fine buildings are due this year. bies, meanwhile,have blocked a merit,"threatens':io•�crowd the :brushy alder. garage,said Susan Kroh,who is fine, Although a recently approved bill in Olympia requiring no net • Itesons"out of the`site.'Yesterday -• The heron rookery• 'is also organizing a•campaign-Tor Save ling County open-space bond loss of wetlands.Patrick said the about•:75; surrounded people. led by Seattle by a railroad track, the rookery. - issue has pledged $624,000 to- fate of the bill,stalled three years, Audubon-Society..turned out to two roads,a rock quarry,a Metro The firm has already clear-cut -ward purchase of-wetland: just remains uncertain-'. 4 .• / ,A, •• ..,. 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'k ,, - • r.• ,..,..4t-t• -,;‘4.. ."- i':-.. t r . • ,rt !: ......:,-. . . .. ,I ...,01.,: ,..,:•;-' 411111 1 11!!!!! GAHMKEN PRESS P.O. BOX 1467 NEWPORT, OR 97365 18 May 1990 Ms. Mary Lynne Myer Senior Environmental Planner Department of Community Development 200 Mill Avenue South Renton, Washington 98055 Dear Ms. Myer: Re: Black River Corporate Park Draft Environmental Impact Statement (DEIS). I have studied Great Blue Herons in the Pacific Northwest for a number of years and have published about a dozen papers in refereed, scientific journals about Great Blue Heron nesting and feeding biology (see Literature Cited at end of this letter). I have read the DEIS and am concerned about the inadequacy of the proposed guidelines to protect the Black River Great Blue Heron colony. I urge that the following guidelines that are partially derived from the Washington Department of Wildlife Nongame Program (1988) guidelines be followed in the construction of the Black River Corporate Park: 1) No disturbance within 800-1,300 ft of the heron colony be allowed during the breeding season from January 15 through August 1. 2) No disturbance be allowed within 750 ft of the heron colony throughout the year. 3) Stands of trees at least 50 ft high and at least 10 acres in area should be preserved. My reasons for recommending these guidelines are on the following pages. Thank your for your time and consideration in considering my comments on the Black River DEIS. Yours, (41112---1 / 61,et/ Range D. Bayer Page 1 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS No activity should be allowed near this Great Blue Heron colony after January 15. Few researchers have made observations at Pacific Northwest . Great Blue Heron colonies before mid-February, but Marty Murphy (pers. corm) noted herons at the Black River colony on 25 December 1986 and 13 February 1987. Also, herons were present as early as January 28-30 at two Oregon colonies (Trowbridge and Bayer In Press). Since Vos et al. (1985), who studied the effects of human disturbance on. Great Blue Herons, concluded that disturbance should not be allowed near heron colonies after herons first arrive at a colony, activity within the buffer zone around the Black River colony should not be allowed after January 15 to minimize the risk of disturbing early nesting herons. Evidence that allowing human activity such as construction or land clearing near a Great Blue Heron colony in February is detrimental is that construction work done near the Black River colony on 18 February 1987 resulted in an average of only 2.0 young fledging per successful nest (i.e., a nest that fledged young)(Murphy 1988). This is less than the 2.2-3.4 young fledged per successful nest found at other Great Blue Heron colonies in the Pacific Northwest (Henny and Bethers 1971, Werschkul et al. 1976, 1977; English 1978, Simpson and Kelsall 1978, Warren 1979, Trowbridge and Bayer In Press) . The DEIS on p. B-5 suggests that Great Blue Herons will nest in small trees or shrubs if large trees are not available. While this can occur in some areas within the range of the Great Blue Heron, I know of no instance, and the DEIS gives no examples, of Great Blue Herons nesting in shrubs in western Washington or Oregon, so this is not currently a likely alternative in the King County area. The DEIS misleadingly suggests that Great Blue Herons can tolerate human activity near a heron colony. Human disturbance such as logging, construction, or repeated human intrusions into or near a heron colony during the breeding season can cause total abandonment of a Great Blue Heron colony (Mark 1976, Werschkul et al. 1976, English 1978, Kelsall and Simpson 1979, Forbes et al. 1983, Murphy 1988). Further, the authors of the DEIS have failed to mention that the mere presence of Great Blue Herons at a colony site does not mean that the colony is "viable" (see p. B-3, B-7, and B-10 in the DEIS). Herons can be present at a disturbed colony but if no young are fledged or if fewer young are produced than are necessary to maintain a stable population, then the heron population is not truly viable (i.e., self-sustaining).. Herons, like gulls (Bayer 1983), can return each year to a disturbed site (especially when there are few nesting sites as in King County), even though their nesting success is poor. The case studies cited in the DEIS to show that Great Blue Herons tolerate nearby human disturbance are incomplete because nesting success is not given for any of the sites. Disturbance can cause some Great Blue Herons to abandon their nests; for example, 90-93% of nests in undisturbed colonies were active, which was significantly greater than in disturbed colonies (Werschkul et al. 1976, Simpson and Kelsall 1978) or than the 75% active nests observed in a disturbed colony studied by Webb and Forbes (1982). Although some Great Blue Herons that abandon their nests may renest, some have apparently abandoned nesting for the entire nesting season Page 2 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS because of disturbance such as construction or land clearing (English 1978, Simpson and Kelsall 1978). Other herons that abandon their nest and go elsewhere to nest will probably do so at a more distant heron colony and thus have reduced nesting success because herons typically nest near their foraging areas and if forced to nest farther from their foraging areas, they can have lower nesting success (e.g., Simpson et al. 1987). There are at least six examples where the nesting success of Great Blue Herons at disturbed colonies was lower than normal. As previously mentioned, the 2.0 young fledged per successful nest at the disturbed Black River colony in 1987 was less than that at other Great Blue Heron colonies. Second, Werschkul et al. (1976) found that the average Great Blue Heron fledging success of 2.20 young per successful nest at a disturbed colony was lower than in three out of four undisturbed Oregon Coast colonies. Third, Simpson and Kelsall (1978) found that, in 1978, the average of 2.06 young per successful nest at the Pender Harbour colony in British Columbia, where road construction and tree clearing for a housing development were occurring nearby, was less than the 2.6 average at an undisturbed colony; in 1979, when human disturbance at the Pender Harbour colony was reduced because the development was abandoned, the average number of young per successful nest increased markedly to 3.0 (Forbes et al. 1983:38, Simpson et al. 1987:576). Fourth, the 2.14 and 2.20 young fledged per successful nest in 1978 and 1979, respectively, at a colony in Idaho about 680 ft away from railroad tracks and about 1,320 ft away from a campground (Collazo 1979:4, 1981) was about 0.4-1.2 young per successful nest less than at a much less disturbed colony in Idaho studied in the same years (Warren 1979). Fifth, Webb and Forbes (1982) recorded a nesting success of 2.33 young per successful nest at a disturbed colony in British Columbia, which is comparable to the number of fledglings per successful nests at undisturbed colonies, but the proportion of abandoned nests was high at their colony, so that Great Blue Herons in their colony only fledged 1.75 young per nest, which is less than than found per nest or breeding pair at less disturbed Pacific Northwest colonies (Henny and Bethers 1971, English 1978). Sixth, and finally, a Great Blue Heron colony in Stanley Park in Vancouver, British Columbia is famous for being near ongoing human disturbance from passersby and is cited in the DEIS on p. B-7 as an example of a colony that has persevered with disturbance since 1921; however, the authors of the DEIS did not mention that this colony, perhaps because of disturbance, had moved at least twice since 1921 (Mark 1976:37, Forbes et al. 1983:48-49) and that the nesting success at this colony in 1980 and 1981 was reduced to only 2.05 and 2.18 young per successful nest, respectively (Forbes et al. 1983:48). In summary, there is ample evidence that nesting success at some disturbed Great Blue Heron colonies is less than at undisturbed colonies. Disturbance such as construction or land clearing can lower nesting success by causing those Great Blue Herons that do not abandon nesting to leave their nests in haste (which can break eggs or knock young out of the nest) and expose their eggs or young to predators or inclement weather that may kill heron eggs or small young (e.g., Simpson and Kelsall 1978, Kelsall and Simpson 1979, Vos et al. 1985). Disturbance can also delay or impair nesting so that young fledge later and are smaller than average, so that their post-fledging survival may be much less than for fledglings from undisturbed colonies. Page 3 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS The DEIS suggests that disturbed Great Blue Heron colonies are "viable," but this is misleading because the nesting success of disturbed Great Blue Herons can be less than necessary to maintain stable population numbers. Although Henny (1972:33) estimated that 1.91 young per pair of Great Blue Herons are necessary to maintain a stable population, he included data from birds reared and banded at National Wildlife Refuges, where Great Blue Herons evidently survive much better than elsewhere (Bayer 1981c). Bayer (1981c) estimated that herons reared north of 40 N latitude and away from National Wildlife Refuges would need to produce as many as 2.33 young per breeding pair to maintain a stable population. Since the number of young fledged per successful nest is 0.2-2.1 young greater than per breeding pair or per nest (Vermeer 1969, Henny and Bethers 1971, English 1978, Warren 1979, Collazo 1981, Webb and Forbes 1982), a minimum average of at least 2.11 young per successful nest (based on Henny 1972:33) or perhaps as many as 2.53 young per successful nest (based on Bayer 1981c) must be produced to maintain a stable population from non-National Wildlife Refuge colonies such as the Black River colony. The breeding success of 2.0 young per successful nest at the disturbed Black River colony in 1987 (Murphy 1988) is clearly below current best estimates of the reproductive success necessary to maintain a truly viable (i.e., self-sustaining) heron population, and it is also questionable if the breeding success at some of the other disturbed colonies mentioned previously is adequate. • On p. B-10, the DEIS misleadingly indicates that Great Blue Herons established and maintained colonies at sites of disturbance that was "obviously acceptable" to the herons. This conclusion is baseless for several reasons. First, the herons really may not have had any choice but to nest near the disturbance; if they nested farther away from their feeding areas, they may have had even lower nesting success (see Simpson et al. 1987). Second, Great Blue Herons indicate their displeasure with disturbance by moving their nests away from it. For example, at disturbed colonies, active nests were significantly farther away from disturbance than were inactive nests (Werschkul et al. 1976), and herons that abandoned their nests because of disturbance then built new nests at a disturbed colony farther away from the disturbance (Simpson and Kelsall 1978). Third, this DEIS fails to mention that the kinds of human disturbance have differed between their examples of disturbed colonies and that while Great Blue Herons can become habituated to some forms of human disturbance, they are less tolerant of others. The proposed Black River construction beginning on February 15 is a type of disturbance that could adversely affect Great Blue Herons because herons have sometimes responded to construction by abandoning their colony or nests and because herons are most sensitive to disturbance early in the nesting season (Vos et al. 1985) and herons can first arrive at their colonies in late January (Trowbridge and Bayer In Press). The DEIS implies that if a disturbed colony grows, then the colony is viable. This can be fallacious unless information about the nesting success at the disturbed colony or knowledge about the fate of surrounding colonies is available. For example, the DEIS indicates on p. B-8 that the number of nests at the Lake Sammamish State Park Great Blue Heron colony has increased; what the DEIS neglects to mention is that the growth of this colony may be because of the abandonment of a nearby colony at Weowna County Park (see Murphy 1988). There appears to be a shortage of available nesting sites for Great Blue Heron colonies in King County (see Murphy 1988), so herons are forced to nest in the few sites remaining, in spite of disturbance. Page 4 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS In summary, since the DEIS fails to give the nesting success at any of the disturbed colonies cited as examples of herons tolerating human disturbance, the DEIS' conclusion that disturbed Great Blue Heron colonies are "viable" is inappropriate and questionable. On the contrary, there is ample evidence that some forms of human disturbance, including construction, can hurt heron nesting success. The distance guidelines of the Washington Department of Wildlife (WDW) to eliminate disturbance around a Great Blue Heron colony are reasonable and should be followed. The WDW has undoubtedly spent time and care in determining their guidelines, which (in my opinion) contrasts to the sometimes sloppy preparation of the DEIS' Appendix B (see below). The WDW's recommended buffer zone of 800-1,300 ft around a Great Blue Heron colony is reasonable because Buckley and Buckley (1976:27-28) recommended that there should be a buffer zone of 1,000 ft around colonial nesting waterbird colonies. Further, the average distance between active nests and disturbance was 718 ft at one Great Blue Heron colony (Werschkul et al. 1976). Additionally, Short and Cooper (1985) and Vos et al. (1985) both recommend that a buffer zone of 820 ft on land and 492 ft on water be maintained to avoid human disturbance. The case studies in the DEIS that are given to indicate that herons can tolerate human disturbance at closer distances are either for less obtrusive disturbances than the construction proposed for the Black River Project or for disruptive disturbances that may not have occurred during the Great Blue Heron's breeding season. Using the Black River Great Blue Heron colony as an example, construction in February definitely disturbed the heron's nesting in 1987 (Murphy 1988). On p. B-7 of the DEIS, it is stated that Taylor and Reshkin (1981) (which should actually be Taylor et al. 1981) concluded that . recreational activities during the nesting season could be allowed within 575 feet of the nesting rookery." This DEIS' statement is erroneous; Taylor et al. (1981) actually recommended that limited recreational use be no closer than 574 ft (175 m) of the heron colony. The DEIS correctly interpets Taylor et al.'s (1981) guideline on p. B-11. The proposed Black River Corporate Park would involve a more intense form of human disturbance than the limited recreational use considered by Taylor et al (1981), so Taylor et al.'s (1981) buffer zone of 574 ft and, certainly, the 400 ft buffer zone proposed for Tract B of the Black River development (p. B-14 of the DEIS) could be inadequate to maintain a truly viable (i.e., self- sustaining) heron population at the Black River colony. In my opinion, parts of the DEIS' Appendix B were hastily written with inadequate care. The sloppiness in the writing of Appendix B indicates to me that the proposed guidelines for Tracts A and B in Appendix B on p. B-13 and B-14 may not'have been thoughtfully enough researched and are inadequate. The sloppiness of Appendix B preparation is apparent in the following items, which are by no means all the errors in Appendix B: 1) p. B-2: Erickson (pers. comm.) and Allmendinger letter are not given in the "Literature Cited" or "Personal Communications." 2) p. B-4: Contrary to what is written, Lowe (1954) contains no information about the Great Blue Heron (Ardea herodias); Lowe (1954) is about a different species, the Gray Heron (A. cinerea). 3) p. B-4: It is not true that any of the references that are cited as Doctoral dissertations are really Doctoral dissertations. In fact, Page 5 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS • • • only one of the four references cited is a Thesis at all ! 4) p. B-4: The Milner pers. comm. is not listed in the "Personal Communications" at the end of Appendix B. 5) p. B-4: Two references, Mark (1975) and Henny (1971), are not given in the "Literature Cited" at the end of Appendix B. 6) p. B-4; There is no Cottrille (1958) in the "Literature Cited" at the end of Appendix B; this should have been Cottrille and Cottrille (1958). 7) p. B-5: Henny (1971) is not in the "Literature Cited" at the end of Appendix B. 8) p. B-6: There is no Simpson et al. (1987) in the "Literature Cited" at the end of Appendix B; however, there is a Simpson and Webb (1987), which is presumably what is meant here. "Et al." properly refers to three or more authors. 9) p. B-7: Two references, Webb and Forbes (1982) and Taylor and Reshkin (1981), are not given in the "Literature Cited" at the end of Appendix B. Further, Taylor and Reshkin (1981) is an incorrect citation because there were actually three authors (see Taylor et al. 1981 in the Literature Cited at the end of this letter). 10) p. B-7: Reference to J. [Jill ] Parker (1980) should be to "she" not "he" as in this DEIS because I don't know of any men named Jill. I wonder if the authors of this DEIS actually saw this reference? 11) p. B-8: Webb and Forbes (1982) is not in the "Literature Cited" at the end of Appendix B. 12) p. B-9: R. W. Thorpe and Associates (1985) is not in the "Literature Cited" at the end of Appendix B. 13) p. B-10: Webb and Forbes (1982) is not in the "Literature Cited" at the end of Appendix B. 14) p. B-11: City of Seattle (1986) and Taylor and Reshkin (1981) are not given in the "Literature Cited" at the end of Appendix B. 15) p. B-12: No explanation is given of who the "WDE" is. 16) p. B-15: The full citations for Bjorklund (1975) and Cottam and Uhler (1945) are not given. 17) p. B-15: There is no such word as "Fynamics." 18) p. B-15 and B-16: References are not in alphabetical or chronological order (i.e., Palmer 1962 on p. B-15 belongs after Murphy 1988 on p. B-16; Van Wormer 1987 should be before Van Wormer 1988). 19) p. B-16: Typographical errors such as "Auccess" and "Lertxchuh" are inexcusable. 20) p. B-16: Short and Cooper 1985 is listed twice. 21) p. B-16: The Simpson and Webb reference is incorrectly cited; there are actually 3 authors: Simpson, Smith, and Kelsall ; but no Webb. 22) Throughout Appendix B, Great Blue Heron nesting "rookeries" are referenced; however, Great Blue Herons do not nest in "rookeries." Only the Rook of Europe nests in rookeries. It is more proper to write that Great Blue Herons nest in heronries or colonies. Literature Cited Bayer, R. D. 1978. Aspects of an Oregon estuarine Great Blue Heron population. Pp. 213-217 in A. Sprunt IV, J. C. Ogden, and S. Wi nckl er (eds.). Wading Birds. Nat. Audubon Soc. Res. Rep. No. 7. Bayer, R. D. 1979a. Bald Eagle-Great Blue Heron interactions. Murrelet 60:32-33. Page 6 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS 411 • Bayer, R. D. 1979b. Great Blue Heron attacks Horned Grebe. Bird-Banding 50:264-265. Bayer, R. D. 1981a. Arrival and departure frequencies of Great Blue Herons at two Oregon estuarine colonies. Auk 98:589-595. Bayer, R. D. 1981b. Great Blue Herons "mousing" in western Oregon. Murrelet 62:91. Bayer, R. D. 1981c. Regional variation of Great Blue Heron longevity. J. Field Ornithol. 52:210-213. Bayer, R. D. 1981d. Weights of Great Blue Herons at the Yaquina Estuary, Oregon. Murrelet 62:18-19. Bayer, R. D. 1982. Great Blue Heron eggshell thickness at Oregon estuaries. Wilson Bull. 94:198-201. Bayer, R. D. 1983. Nesting success of Western Gulls at Yaquina Head and on man-made structures in Yaquina Estuary, Oregon. Murrelet 64;87-91. Bayer, R. D. 1984a. Foraging ground displays of Great Blue Herons at Yaquina Estuary, Oregon. Colonial Waterbirds 7:45-54. Bayer, R. D. 1984b. Vocalizations of Great Blue Herons at Yaquina Estuary, Oregon. Colonial Waterbirds 7:35-44. Bayer, R. D. 1985a. Bill length of herons and egrets as an estimator of prey size. Colonial Waterbirds 8:104-109. Bayer, R. D. 1985b. Interactions of Great Blue Herons and gulls. Wilson Bull. 97:538-541. Bayer, R. D. 1989. Great Blue Heron killed by striking an overhead power line at Coos Bay, Oregon. Oregon Birds 15:197-198. Bayer, R. D. and E. McMahon. 1981. Colony sizes and hatching synchrony of Great Blue Herons in coastal Oregon. Murrelet 62:73-79. Buckley, P. A. and F. G. Buckley. 1976. Guidelines for protection and management of colonially nesting waterbirds. North Atlantic National Park Service, Regional Office, Boston, Mass. Collazo, J. A. 1979. Breeding biology and food habits of the Great Blue Heron at Heyburn State Park, Benewah County, Idaho. M.S. Thesis, Univ. Idaho, Moscow. Collazo, J. A. 1981. Some aspects of the breeding ecology of the Great Blue Heron at Heyburn State Park. Northwest Science 55:293-297. English, S. M. 1978. Distribution and ecology of Great Blue Heron colonies on the Willamette River, Oregon. Pp. 235-244 in A. Sprunt IV, J. C. Ogden, and S. Wi nckl er (eds.). Wading Birds. Nat. Audubon Soc. Res. Rep. No. 7. Forbes, L. S., K. Simpson, J. P. Kelsall , and D. R. Flook. 1983. Great Blue Heron colonies in British Columbia. Environment Canada, Canadian Wildlife Service, Pacific and Yukon Region, Delta, British Columbia. Henny, C. J. 1972. An analysis of the population dynamics of selected avian species with special reference to changes during the modern pesticide era. U. S. Dept. Interior, Fish and Wildlife Service, Wildlife Research Report No. 1. Henny, C. J. and M. R. Bethers. 1971. Population ecology of the Great Blue Heron with special reference to western Oregon. Can. Field. Nat. 83:205-209. Kelsall , J. P. and K. Simpson. 1979. A three year study of the Great Blue Heron in southwestern British Columbia. Proc. 1979 Colonial Waterbird Group 3:69-74. Lowe, F. A. 1954. The [Gray] Heron. London, Collins. Mark, D. M. 1976. An inventory of Great Blue Heron (Ardea herodias) nesting colonies in British Columbia. Northwest Science 50:32-41. Murphy, M. 1988. Status of Great Blue Heron colonies in King County, Washington. Western Birds 19:37-40. Short, H. L. and R. J. Cooper. 1985. Habitat suitability index models: Page 7 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS �• . 410 Great Blue Heron. U.S. Dept. Interior, Fish and Wildlife Service, Div. Biological Services, Biological Report 82 (10.99) July 1985. Simpson, K. and J. P. Kelsall. 1978. Capture and banding of adult Great Blue Herons at Pender Harbour, British Columbia. Proc. Colonial Waterbird Group 1978:71-78. Simpson, K., J. N. M. Smith, and J. P. Kelsall. 1987. Correlates and consequences of coloniality in Great Blue Herons. Can. J. Zooi. 65:572-577. Taylor, T. M., M. Reshkin, and K. J. Brock. 1981. Recreation land use adjacent to an active heron rookery: a management study. Proc. Indiana Academy of Sciences 91:226-236. Trowbridge, E. M. and R. D. Bayer. In Press. A 1-3 nest Great Blue Heron colony near Neskowin, Tillamook County, Oregon. Oregon Birds. Vermeer, K. 1969. Great Blue Heron colonies in Alberta. Can. Field-Nat. 83:237-242. Vos, D. K., R. A. Ryder, and W. D. Graul . 1985. Response of breeding Great Blue Herons to human disturbance in northcentral Colorado. Colonial Waterbirds 8:13-22. Warren, N. M. 1979. Ecology of Great Blue Herons on Silver Creek, Idaho. M. S. Thesis, Univ. Idaho, Moscow. Washington Department of Wildlife. 1988. Draft, recommended management guidelines for Washington Endangered and Threatened Species and Species of Concern--Great Blue Heron. Nongame Wildlife. Webb, R. S. and L. S. Forbes. 1982. Colony establishment in an urban site by Great Blue Herons. Murrelet 63:91-92. Werschkul , D. F., E. McMahon, and M. Leitschuh. 1976. Some effects of human activities on the Great Blue Heron in Oregon. Wilson Bull. 88:660-662. Werschkul , D. F., E. McMahon, M. Leitschuh, S. English, C. Ski bi nski , and G. Williamson. 1977. Observations on the reproductive ecology of the Great Blue Heron (Ardea herodias) in western Oregon. Murrelet 58:7-12. Page 8 of 8 pages of Bayer's Comments on Black River Corporate Park DEIS ` l • 5/14/90 Donald K. Erickson Re: DEIS, Black River Chief, Current Planning Corporate Park, Tracts A&B City of Renton 200 Mill Ave. So. Renton, WA. 98055 " Dear Mr. Erickson: You have, for this phase of the development, received testimony from a number of recognized and highly respected persons in the scientific community, namely to my.tknowledge Dr. L. SObtt Forbes, Dr. P. Dee Boersma, Ted Muller, Dr. John Kelsall and Mr. Range Bayer.:. The Great Blue Heron and other wildlife are indeed fortunate to have such advocates. I urge emphatically that the decision-makers carefully study their documents . • (1) BUFFER ZONES - Guidelines established by the Department of Wildlife recommend at least 750 feet. In view of certain unresolved questions re ard).ng human disturbance at Great Blue Heron colonies, I firml this guideline should be honored. (2) A. NO=DISTURBANCE DATES - While the British Columbia Heron, as both Forbes and Kelsall indicate, settle in at their colonies in mid-February as do the Marsh Island and Samish Island heron 70 miles north of Seattle, at each of these colonies there is no sign of heron in either Padilla Bay, Samish Bay or the trees until mid-February. Pair-bonding, nest defense may take place at both the Renton and Lake Sammamish heronries anywhere from late December to January' s end. On 12/25/86 I noted 8 heron present at the Renton heronry. On February 13, 1987 I counted 28 heron there, far more than 8 nests could accomodate. .These were probably heron seeking nesting sites . I therefore am in agreement with Bayer that no disturbance should be permitted from at least mid- January. B. Young heron fledged at the Black River colony between 6/20/87 and 7/1/87. (I was unable to visit the site during that period) .. On the July date I counted 6 juveniles , loafing on the islands in the pond. It must be emphasized that recently fledged heron do not leave the colony for at least two to three weeks past the fledging date since they must gather strength to forage in a wider range. In summary, the• no disturbance dates must be from at least mid-January to August 1 . I further emphasize that in large colonies a week or more may pass before all fledging occurs. (3) SEVEN_STORY STRUCTURE- This not only poses a threat to the Great Blue Heron and songbirds but is totally out of synch with not only this site but with the entire business park areas . A suggestion to erect the building on tract A is totally unacceptable since it would then. be directly in the flight path of the heron, their major route particularly during nesting season. Murphy - Black River Corporate Park DEIS - 2 (4) FEEDING OF ?WILD BIRDS - The feeding of wild birds, in particular Mallards and Canada Geese, must be prohibited by the introduction of a city ordinance which includes a fine for so feeding. (5) EOOD SUPPLY - GREAT BLUE HERON- Although I noted occasionally some adult heron feeding in the ponds, any fish brought to the young was delivered by adults flying to and from the south- southwest. Possibly the Tukwila ponds are one source, if they have not since been drained for a shopping center. Since only fish is fed to pre-fledged young heron I postulate that during the critical period prior to . fledging the P-1 ponds are lacking in fish, or from; May possibly toliate fall. My reasoning. is as follows: (•a) The diet of the Double-crested Cormorant is schooling fish. Four cormorants were present March 1 and 4/21/87, but not before or after those dates . (b) Bufflehead, totalling 30 pairs on December 25, 1986, and in less but still substantial numbers from November 1, 1986 through May 1, 1987, . are partly aquatic vegetarian but become fish- eaters during winter. Since these are diving birds it is difficult to determine whether they are eating aquatic foods or fish. (c) Only one other species, the Hooded Merganser, eats mostly fish. Twelve pairs of these were observed only once in 35 visits, on Nbvember 8 , 1986. (6) PILE DRIVERS -. On July 21, 1987 I noted through my spotting scope that six young heron loafing in the. nest tree froze in an erect position at the sound of a pile driver near Springbrook Creek. The sound created a substantial echo that bounced off the hills behind the colony. Please note that date of heron present, well after the fledging period between June 20 and July 1 . (7) Dr. Kelsall describes the absence of a list of biological diversity at Black River Corporate Park. I submitted such a list to the Planning Commission in 1987. The table attached, adapted from the original chart presented, accounts for water, shore and land birds. Only one mammal was noted in 35 visits to the site - a dead beaver along the south berm, cause of death undetermined. Coyote scat was also present in this area. I found no raptor pellets here but believe they would be found on the hill beneath the trees there. Finally,' I am in full agreement with Dr. Kelsall that "the developers of Black River Corporate Park are clearly playing brink- manship with the heron and possibly with other ecological values as well. " Developers stated in 1987 that they considered the Great Blue Heron "an amenity, " This materialistic view, not only of heron but of 'a whole ecosystem, is responsible for the precarious state of wildlife and its habitat throughout the United States, particularly when city governments are willing to trade off natural areas for economic benefits. { • Mrs. Marty Murphy 20.16 Bordeaux Lane Half Moon Bay, CA. 94019 } • y1 Murphy - Black River Corporate Park DEIS-:3 Table 1. WATER, SHORE AND LAND BIRDS NOTED, BLACK RIVER CORPORATE PARK, NOVEMBER 1 , 1986 to JULY 21, 1987 ( Listed in Accordance with the American Ornithological Union Checklist of North American Birds) Pied-billed Grebe Hooded Merganser Double-crested Cormorant Spotted Sandpiper Green-backed Heron * Western Sandpiper * Great Blue Heron * Killdeer Canada Geesel Red-tailed Hawk Mallard Rough-legged Hawk Gadwall Northern Harrier * Greenwing teal American Kestrel Blue-winged Teal California Quail Cinnamon Teal. Belted Kingfisher American Wigeon Violet-green Swallow Shoveler Barn 'Swallow Ruddy Black-capped Chickadee Canvasback American Robin Ringneck . Loggerhead Shrike Lesser Scaup * Common Yellowthrmat * Barrow's Goldeneye Song Sparrow Common Goldeneye White-crowned Sparrow Bufflehead Red-winged Blackbird Northern Oriole American Goldfinch House Finch 1 Canada Geese nested prolifically. Notes from 5/27/87: Four families ; .one pair with 4 subadults; one pair with 8 downy young; one pair with 10 juveniles, 1 pair with 10 recently feathered. Thick understory on the north side of the P-i po ds a d several small islands .within the ponds provided excelle 9 the geese. 2 Two Red-tailed Hawk nests were noted, one on the hill west of the Great Blue Heron colony, the other near the gravel chute of the quarry. It 'should 'be noted that (a) Great Horned Owls rarely build their own nests, but rely on "borrowing"particu13riy Red-tail nests, and (b.) any disturbance to nesting raptors (or any nesting birds) in the State, of Washington, including interference with eggs, the young, the nesting tree, is in violation of state statute, a copy of which can be obtained from the Department of Wildlife. Two warbler species were present but were heard only, therefore I can offer no definite identification. Two Mallard families were also noted. * Species of concern due to wetlands/other habitat loss. A • Susan Krom, Citizens for Renton Wildlands Preservation , • 3640 Ashworth Avenue North , Seattle, WA 98103 . • Dear. Ms Krom: The enclosed commentary has been written in more haste than I • usually care for in documents which will go public . Use it , however, for any purpose that you wish . I should warn that I have ' not proof read the printout , and it may contain a few character omissions . My printer does that when it gets hot . The. omissions will not be serious 'but , if you find any, I •suggest pencilling in the missing characters . I enclose a copy of a four year old resume, which will give you my educational background and professional qualifications . The bibliography enclosed is ancient history. I do not have an updated one in presentable form 'and, I believe; I have done some of my best stuff in the past 10 years . It would take me about two days to put a complete one on a disc and print it out . .. .The biolog-ical__. considerations _-in .the- EIS-- are--so - simplistic and incomplete that I wonder about the qualifications of the author(s) . Perhaps it is just that consultants in the U.S. of A. , like many in Canada , have been finding that they can get away with murder ' (and ,can charge accordingly) . 'I note—t-h-a-t Jonathan Ives, who presumably wrote ,.about .. wildlife, is a member of The 'Wildlife Society, and la . Certified Wildlife Biologist under ' their . certification plan , so he should be competent . - I have not been in touch- with Scott Forbes since I talked to you, so I do not know if he has got his copy of the EIS or not . I will try to get him this evening . • Do let me know how things go when you have time after the hearings . Sincerely yours, • G John . Kel61 sall, 22 D erfield Drive, • DEIT , British Columbia. •V4M_2W9 April 25, 1990. • • • y • • COMMENTS ON THE BLACKWATER CORPORATE PARK DRAFT ENVIRONMENTAL STATEMENT OF APRIL, 1990 by John P. Ke.lsall , Ph .D. , R .P.Bio . 22 Deerfield Drive . Delta, British Columbia Canada . V4M 2W9 • Introduction My comments on the Blackwater Corporate Park draft environmental statement are confined to those portions where I have some experience and expertise . They are those sections of the main report dealing with plants and animals and , particularly, with "Appendix B - Life history and effects of human disturbance on great blue heron rookeries" . Because I have not visited the site, my review is concerned only with the technical accuracy and .adequacy of what is said in the EIS. I do not comment specifically on proposed mitigation measures or alternative plans because, in my opinion , the biological baseline is inadequate. for such considerations. • ' A strong first impression was that the EIS appears to accept the corporate park development as virtually a foregone conclusion - that the only decisions remaining are those of how best to provide for the retention of _some habila_t__and wildlife around the • peripheries of the, site. ,The heron, colony and P-1 pond .are the only wildlife-values given more than superficial consideration , and the corporate park design is modified, perhaps only slightly, to lessen impacts on them. A "no action" alternative is mentioned . in connection with each section of the development , but is nowhere • seriously discussed. No information is 'given on the importance of the existing site to local wildlife-, to the local environment , or to the quality of life in. Renton . What is planned for the residual riparian forest adjacent to the site? From the scant information supplied, it seems that the corporate park site may supply some wild land that complements the residual forest by adding . considerable biological diversity. Deficiencies in the EIS The most serious, immediately apparent , deficiency in the environmental impact statement is the absence of biological inventory. Biological inventory is usually the first , basic, and, necessary step when making an environmental assessment . It is difficult to imagine attempting biological description of an area without first knowing what is there, but that is exactly what the - - Blackwater Corporate Park draft attempts to do . There are no lists 2 • of plants, - amphibians , reptiles, birds , or mammals . Scientific nomenclature is not given for the few species that are specifically mentioned in the text .. Vegetative habitat components are mentioned, but only in qualitative, rather than quantitative, fashion . From the text , it appears that biological investigations on the ground may have been limited to a single field trip - " the field visit in mid-June" (p . 3-31 ) , although "field visits" are referred to (p. B4) in connection with the heronry in Appendix B. The text , particularly "3 . 5. 1 Vegetation" and "3. 5 . 3 Wildlife Resources" , is full of qualifiers that reinforce an impression that there was no on-site description of current biota . Such phrases as "Species such as Timothy . . . are present" , "an extensive shrub zone characterized primarily of red alder and black cottonwood" , "trees of approximately 100 to 130 feet in height" , "Species such as red alder" , "it is likely that predators use these wetland areas" , "wildlife most likely to utilize the site include" , "Waterfowl. . . .may nest" , do not lend confidence that the authors had more than a superficial idea of what they were writing about . In general , plants arid .plant associations are described somewhat better than the animals . The authors at least knew the colloquial names of a number of grasses, herbaceous plants, shrubs , and trees. • The reader gets a reasonable idea of the sorts of vegetative associations that will be lost with development of the site, but no idea of the importance of that loss to the surrounding environment . Reference is made to a dozen or so bird. species, although it is not clear if they , were seen by the investigators, or are merely ' mentioned as being possible. occupants of the site . A few mammals are mentioned by name as well , but again with ' no certain indication' that they were .identified through on-site investigation . One would like to know what the investigators mean when they say "Few mammals, other than mice, voles , and adaptable predators such as racoons, striped skunks , and opossums will be • sustained. " What are the mammals that ; through inference, will not be sustained? For that matter what species of voles and mice are • they talking about , and in what numbers? There are some rare and interesting voles and mice in the Pacific northwest , and there are • also some extremely common ones that provide much food for predators , including great blue herons. Are there shrews, moles, other small species or other large species , present? Things are even less - clear with the "amphibians and reptiles" . No . amphibians or reptiles are named . -Insects are not considered at all . - I would like to have some assurance that the site is not ecologically important to .a larger area , and- •that it does not -" contain rare_ or endangered life forms . No such assurance can be 3 given or inferred from the EIS as it stands . The engineering aspects of the Environmental Impact Statement may be well done and thorough . They include some hard data , and appear to have some substance, but; I am not qualified to judge them. I can state, however, that , excepting some aspects of Appendix B, the biological aspects of the environmental statement are simplistic .and superficial in the extreme. Appendix B the great blue heron nesting colony The description and discussion of the great blue heron colony, adjacent to the Blackwater Corporate Park site, is surprisingly limited, considering the prominence given to it in the EIS. Biological data relating to it appear to be almost entirely derived from unpublished reports and conversations . The colony is not well described . We are told that the nests are in a grove of "140 to 150 foot tall" black cottonwoods . We are not told the number or extent .of trees used for nesting, the heights of the nests above ground, the condition or viability of the nesting grove, or the condition and composition of the subcanopy vegetation . We are not told what disturbances the nesting herons are subject to now. We are not told if there are alternate nesting sites in the local area, in the event that development for the corporate park' should cause abandonment of the heronry. We are not told why the herons established' themselves ,where they have. Were they perhaps displaced from some known previous site?. , My secondhand information, 'slightly different from that given in the EIS, is that • the colony has had progressively increasing numbers of nests - from 3 in '1986 to over 30 in 1990 (S. Krom, personal communication) . That suggests a reasonably secure, undisturbed; and increasingly important nesting site. - The EIS lacks , or is less than precise on , some basic information concerning the heronry. Where, and on what , do the nesting herons feed? Do they use the adjacent . park and pond site, or do they go further afield? Feeding. locations are determined by the simple process of observing the directions of- feeding flights, and following those flights to their sources . The finding of feeding locations may be simplified by determining what the birds are eating. That determination is often made by examining foodstuffs commonly dropped over the sides of active nests. Colonies often have more than one- feeding - area . Have those matters been investigated? The EIS plans heron flight corridors between buildings in the corporate park, but it does not indicate that those corridors are ones that the herons actually use. In fact the EIS is vague on that point . If the buildings will be in the direct and commonly used flight paths of feeding herons, their impact will • be much greater than if they are not . It would also be useful to"see consideration of the elevation of the heron ' s nests in relation to that of the planned buildings . One . would suspect , although I know of no directly confirming data, that buildings that overlook nests would have a much greater impact than ones below nest level . We know how high the planned buildings will be. Relative to them, how high are the nests? Will the roofs of the buildings have human activity areas? • It is not evident , from the EIS, what configuration for buildings and parking is most likely in the planned corporate park. The plans shown in "Appendix B" are not the same as those shown in the main body of the work. Considering the huge size of outdoor parking shown on some of the diagrams , it seems surprising that the authors did not attempt to analyze the effect of car park activity on nesting herons . What about night time activity in the corporate park? Herons may make feeding flights day and night . • ' The authors have done a commendable job of locating selective references, particularly from the northwest , that demonstrate that herons may maintain colonies despite much environmental ' disturbance. Their data show, however, that such colonies are almost invariably small . The average number of active nests in the 6 colonies shown on their Table B-1 is 18 . 6 , with .a range from 0 . to- 50 . That is about half average colony size for the province of British Columbia , and some other venues examined (Kelsall 1989, - Forbes et al . 1985a) . The instabilityof such small ' colonies ,is ' demonstrated by the fact that they'a're short lived. Table B-1 shows no record for any of the • colonies prior ' to 1985, and the text suggests no significantly longer history for any of them. By contrast , large colonies, in ' ' large and ' secure acreages are, known, . if only through oral tradition , to be long lived. For example, a colony of upward to 200 nests in Tsawwassen , British Columbia, that . was destroyed by logging in 1955, had been at the same forested site since the turn of the century, and probably long before that . Urban development forced it to move several times in the next 18 years . It relocated about 1973 in a forest of several hundred acres in Point Roberts, Washington , where it now has +345 active nests per year. Large colonies are also more productive than small ones, fledging more • young per nest . It is believed that some small colonies might not • produce enough young to maintain themselves without recruitment form nearby larger colonies (see Forbes et al. 1985a , Forbs et al . 1985b, Kelsall 1989, Butler ].989) . The authors should qualify their repeated use of the Stanley Park heronry in Vancouver, and the Delta- River Inn heronry in Richmond (not Vancouver) , B. C. as examples 'of tolerance to vehicular and human traffic . The Stanley Park colony indeed tolerates much human , - and some vehicular traffic. However, it should be noted that it has • • had 60 years of progressively greater disturbance in which to condition . It has not been remarkably successful despite having excellent nest trees and room to move around, extensive feeding habitat , and virtually no avian predation . The Delta River Inn heronry, in a noisy and busy site, is a real anomaly. However, the trees involved provide the only feasible nest sites in an extremely rich feeding area near Vancouver. airport . Theoretically there is room for many nests . In fact , only a few birds (3 nests in 1990) tenaciously hang on there (Scott Forbes , personal communication ) . That heronry is not viable in the usual sense of the word, and certainly not something to be emulated at Blackriver . There are some oddities in the summarized data relating to small heronries in Table ' B-3 . First , the distances between human activities and "Rookeries" ( in my dictionary rookeries are for rooks , Corvus fugi).egus , although the term is sometimes applied to places where seals and penguins haul out of the water) are obviously rough approximations . Curiously, the approximations used in the table are often different from those used in the accompanying descriptive text . The discrepancies are sufficiently - frequent and divergent as to make all the given distances suspect . - Stranger still is the status rating given for two of the heronries in Table B-1 . What were the criteria by which the Pigeon Point heronry, that had only 16 nests in 1986, none in 1987 or 1988, and whose current status is unknown , was judged to be "'viable"? Its viability - seems' to be most uncertain from the data given . The • .Spencer Property heronry, with only 6 nests in 1988 and no subsequent data , surely has unknown , rather than "viable" , status . .The authors appear . to have selectively ignored a substantial literature suggesting that persistence of heron nesting . in disturbed sites is an exception rather than a rule . The corporate • park development will . certainly impact the adjacent heronry, perhaps even-cause its abandonment ; despite suggested safeguards. Werschkul et al . ( 1976) , whom they cite, observed that heron nests within 486 " ( 148 m) of a logging operation were inactive. While nests 719 ' ( 219 m) from the logging were active, birds were shifting nests to the side of the colony distal from the d.i.sturbance'. Simpson and Kelsall (1978) compared two similar heron colonies , one severely impacted by development of a housing subdivision nearby. Toward the end of the breeding season in 1978, 88% of nests in the undisturbed colony were active, but only 27% of those exposed to development were still viable. The disturbed colony was abandoned by the birds the following year. Corbett et al . ( 1985) described a classic case where a large heronry of perhaps 200 years standing was abandoned following progressive • human intrusion over a period of 30 years. Some of the factors were construction of a causeway to the island site, progressive ' enlargement of encroaching camping and parking facilities and, finally, confinement of the heronry to unsuitable coniferous forest . where herons killed many nest trees with their excrement before finally abandoning the site. Examples of herons abandoning nest • • • sites due to disturbance are legion . Vos et al . (1985) experimentally examined the reaction of nesting herons to disturbance by humans, and may have produced the most definitive study to date . They found, and other authors agree, that herons are less tolerant of disturbance early in the nesting cycle (i .e . during courtship , nest building, egg laying, and early incubation ) than they are later• in the season . Visibly disturbed by an intruder at an average of 560 ' ( 170 m) in March , they tolerated intrusion to within 165' to 210 ' (50 to 65 m) for the balance of the season . Like most other authors on the subject , Vos et al . believed that herons may be considerably disturbed well before they actually provide overt evidence by flushing from the nest . Their recommendations for a buffer zone around heronries was 820 ' (250 m) , the greatest distance at which herons were flushed from the nest by an intruder•, plus 164 ' (50 m) as a safety margin . Most recent recommendations for the protection of heronries suggest 1 ,000 ' (300 m) as a zone within which there will be no disturbance of any sort during the nesting season . The most comprehensive, recent guidelines, . of which I am aware, are those of Bowman and Siderius (1984)' for the Province of Ontario. The Washington State • Department of Came draft management guidelines for heronries, cited in the EIS, are alone in recommending a 656' (200 m) buffer zone. • In leaving much to the discretion of biologists when recommending buffer zones, they forget that few biologists have experience or .knowledge of the needs of nesting herons . The +340 nest Point Roberts colony has come perilously close to destruction , and may yet go, because a state biologist apparently did not thoroughly investigate .existi.ng and planned encroachments on the nesting area (see Kelsall 1989) . • Literature references • I frequently edit draft manuscripts for technical journals, including the Journal of Mammalogy, Journal of Wildlife Management , Canadian Journal of Zoology, and Wildlife Society Bulletin , and for book publishers, consulting companies, and the Canadian Wildlife Service. It is rare, in my experience, to see literature citations • handled as carelessly as they are in Appendix B of the Blackwater • Corporate Park draft. If a structure is no stronger than its weakest .link, the Blackwater Corporate Park EIS is hanging by a thread! • The following citations given in the text , figures , and Table B-1 of Appendix B are not given—in the "Literature Cited"-. There may be others that I did not note in passing. City of Seattle 1986 - Table B-1 , p . B-11 Cottrille 1958 - p. B-4 Ronny 1971 - p. B-5 • 7 Henry 1972 - p. B-4 LPN, Inc . 1988 - Figs . 2 and 3 . Mark 1975 - p . B-4 R.W. Thorpe and Associates 1985 - p. B-9 Simpson et al . 1987 - p. B-6 Taylor and Reshkin 1981 - p. B-7, B-11 Van Wormer 1989 - Table B-1 Webb and Forbes 1982 - p. B. 7, B-8, B-10 In addition the following anomalies were noted in the "Literature Cited" . ---- "Short and Cooper. 1985. " are given twice . "Simpson , K. and J .N.M. Webb. 1987. " is not a bona fide reference. It may be a confusion of papers published by Webb and Forbes ( 1982) , and by Simpson , Smith , and Kelsall (1987) given in my literature citations below. I may have missed them, but I did not see "Henny and Bethers . 1971 . " or" U.S. Fish and Wildlife Service. 1987. " cited in the text . -Some -of the references given are incompletely cited. Four of the , last -five literature references for example, on page B-16 , provide author, date of publication , title, and pagination only. They give only indirect indications of where . they might be found, thus - - -thwart-frig - the ess;ential-purpose of literature citations , which is to allow .a reader to look. things up personally. • • Concllisions • . "Since the developers of the Blackwater .Corporate Park are clearly playing brinksmanshi'p with the Renton heronry, and possibly with other ecological values as well, it is reasonable to expect that any environmental assessment of the site should be systematic and comprehensive . Unfortunately, the biological considerations in the draft Environmental Impact Assessment are inadequate and flawed . They should be upgraded to reasonable professional standards . For example, they. should be acceptable to a panel of professional biologists in relevant, fields, using the same sort -of criteria that . apply to peer-edited technical publications . Literature cited above • --Bowman , I .- -and J. Siderius . 1984. Management guidelines for the protection of heronries in Ontario. Ontario Ministry of Natural Resources , Wildlife Branch , Toronto: 44 p. Butler, R.W. 1989 . Breeding ecology and population trends of the great blue heron , Ardea herodias fannini , in the Strait of 8 Georgia . In : Vermeer, K. and H.W. Butler (eds . ) . Ecology and status of marine and shoreline birds in the Strait of Georgia . Proceedings of a symposium sponsored by the Pacific Northwest Bird and Mammal Society and the Canadian' Wildlife Service. Canadian Wildlife Service, Special Report : 112-119 . , Corbett , G.N. , K. Robinson , and C. Roberts . 1985. A review of the Rustic() Island heronry in Prince Edward Island National Park. Parks Canada, Atlantic Region , Natural Resource Management Planning, Technical Report (with Ammendments) . 34 p. Forbes, L . S. , K. Simpson , J.P. Kelsall , and D. Flook. 1985a . Great blue heron colonies in British Columbia. Environment Canada, Canadian Wildlife Service, Delta . 78 p . Forbes, L.S. , K. Simpson , J.P. Kelsall , and D. Flook. 1985b. Reproductive success of great blue herons in British Columbia . Canadian Journal of Zoology 63(5) : 1110-1113 . • Kelsall, J.P. 1989. The great blue herons of Point Roberts - history-, biology, and management . Prepared for Point• Roberts Heron Preservation Committee, Point Roberts , WA (unpublished' report ) . 32 p. • Simpson , K. and. J.P. Kelsall . 1978. Capture' and banding of great blue herons at .Pender Harbour, British Columbia . Proceedings • of the Colonial Waterbiird Group-.2 :71-78'. Simpson , K. , J.N.M. Smith', and J—P., 1987. Correlates and • . consequences of •coloniali;ty' great .blue ,:herons.'. Canadian Journal -of Zoology 65': 572-577 , . - Vos D. C. , 'R.A. Ryder, and W. D. Grau_ 1. 1985. Response of breeding great blue herons ' to 'human disturbance in northcentral Colorado. Colonial Waterbirds °8( 1 ) : 13-22'. Webb, R.S. and L.S. Forbes . 1982 . Colony establishment in an urban site by great blue herons . Murrelet 63(3) : 91-92 . Werschkul, D. , E. McMahon, M. Leitschuh, S. English, C. Skibinski , and' C. Williamson . 1977. Observations on the reproductive • ecology of the great .blue heron (Ardea herodias) in 'western . Oregon . Murrelet 58(1 ) : 7-12. John P. Kelsall. April 24, 1990 . gut. aA {r"e. ,i d { r ott fyy uk 'Si`�t5 �.. µ is ,_,r,y '4 t. F,.t. C� 1 p'°t ,4s c.2, to x 1't-'' �5„�. 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(206 583 ' ,., .V , t u F,t r October 24, 1989 , Ms. Jeannette Samek-McKague Department of Community Development Planning Division 200 Mill Avenue South Renton, Washington 98055 RE: Blackriver Corporate Park „ OCT 2` 15 1989 ECF SA SM 071-88 (Phase VII) SA-109-89(Phase VIII) ' ' , I 1 ' q 1; 1,., dy_�' NW 88041, 89017 Dear Jeannette: Per our meeting with you, Mark Miller and Jonathan Ives on 20 October, we have enclosed Phase VIII revised, Phase VII as revised and reviewed that day, and a project specific for Tract A, so the E. I.S. scope can be redefined. The E. I .S. draft would encompass Phase VIII (Burlington Northern Property) , per your recommendation, and Tract A. The phasing for buildings with areas of allocated parking and development per phase is noted on the sketches. If you have any questions, please call myself or Mark Miller. R ectful , Royit t '' :1 a A. Berg Pre ident RAB:mp cc: Mark Miller Jonathan Ives Don Erickson enclosure (site sketches 1 and 2) CITY OF RENTON eel 4-y,„ COMMUNITY DEVELOPMENT DEPARTMENT Earl Clymer, Mayor Planning Division October 6, 1989 Roger McKaen Classic Helicopters 6505 Perimeter Road South Boeing Field Seattle, Washington RE: Helicopter Training Activity City of Renton - First City Development Property Dear Mr. McKaen: Per our discussion of last week, this letter is to inform you of the complaint we received regarding helicopter training occurring over the site of the Black River Corporate Park (as shown on the attached map) and to strongly request that this property no longer be used for helicopter training. We were able to trace the helicopters through identification numbers provided to us (N 8035W and N 2536M) by the complainant. As we discussed, this property is a valuable resource for the community as well as the State in that a thriving heron rookery has been established on the site. While the birds appear to be tolerant of human intrusion near the rookery, we do not know their threshold of tolerance for such intrusions. We are aware that as the helicopters maneuver over and near.the site the birds flush. The City cannot allow such intrusion on or near this property. 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 Facsimile (206) 235-2513 Roger McKaen Classic Helicopters October 6, 1989 Page 2 • As we agreed in our discussion, you will be revising your maps to show this area as off limits to training by your company. If the training activity is not discontinued on the property we will be forced to pursue a legal course action to prevent such activity. Further, we understand that such training can only occur with the permission of the property, owners. First_City Developments has informed us that no such permission has been granted. The City and the developer have been working together to preserve the rookery in light of development proposals for the site. The rookery is too valuable a resource to have it destroyed. We appreciate your cooperation in this matter. If you have any questions, please call me at 235-2550. ' Sincerely, Jeanette Samek-McKague, . Senior Planner • McK:mjp cc: Mark Miller First City Development 800 5th Avenue, Suite 4170 Seattle, WA 98104 ' ' Gail Reed, Airport Manager City of Renton Attachment �i3trit0 1,,..4111 La �A ..T� '!r � B T o T E I1N�V,N • dE_ 34� 35 .. i�. ` 'r .p yy�y'•.A NEy0E11 , M1�q��fr L .utH;PA A asar.l'tom r• ' x7N l ` t>�/y1 1'•5 _J 4`^IP."",Ir - 3. E 7 ? "mMllr.,C N I E R 1 .. ,•,.r r. i -; ar ..:.� - i• 0:1% p i-,, s rl^NE it._rl A ',A.- iiliga ` N R� .� .t at.li SW MSI`p po !/rn T 7 Acrn nw BEACH -0 ;, a.14 \-1 +,.'av nRA1N1[I J��*s I KENNYDALE �` [vy4 • • i - '' ETCREER�• ,1 i�y,f... ' n 4'� I I • I T': ..lT� i. ]olJlt 4 yy • ,' +1 .: o7N4 , , , t "`K i l .... 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I l / 1 4' • • JONES& STOKES ASSOCIATES, INC. / 1808- 136TH PLACE, NE / BELLEVUE, WA 98005 206/641-3982 FAX 206/641-3147 August 29, 1989 Ms. Mary Burg Manager, Wetlands Section - Washington Department of Ecology Mail Stop PV-11 Olympia, WA 98504-8711 SUBJECT: Status of August 10, 1989 letter regarding wetland delineation, Blackriver Corporate Park, Renton, WA Dear Ms. Burg: This letter is a follow up to the August 10, 1989 letter to you from Dyanne Sheldon and Robert Denman of our staff requesting a finding from the Department of Ecology (WDOE) on wetland methodology for the Black River area. As you may remember, WDOE conducted a wetland survey of the site in 1987, and in April of that year submitted a letter to the City of Renton defining the wetland boundaries. As a part of our work effort on the SEPA EIS being prepared for the site, in June of this year Jones & Stokes Associates staff conducted a wetland delineation using the new Joint Federal Methodology. Our letter to you of August 10, 1989 outlined the wetland boundaries of that delineation. Because the boundaries of the wetlands have a significant influence on the location, size, and impacts of the proposed office park, we are unable to proceed with preparation of the EIS until this issue of wetland boundaries is resolved. We request that WDOE provide us with some indication of the progress regarding your finding so that we can plan our schedule accordingly. Ms. Mary Burg August 29, 1989 Page - 2 - If we can provide any clarification on this issue, or if you or your staff wish to meet on the site, please let us know. Thank you for your assistance with this matter. Sincerely, 44,44-) 1 ( Jonathan H. Ives 4------___ Project Manager CC: D. Erickson, City of Renton L. Blauman, City of Renton C. Gregoire, WDOE - I.4fr91� RENTON CITY COUNCIIJJG 2 9 1989 11 Abbreviated Meeting August 28, 1989 . , !i; r icipal Building Monday, 7:30 p.m. Council Chambers MINUTES CALL TO ORDER Mayor Earl Clymer led the Pledge of Allegiance to the flag and called the meeting of the Renton City Council to order. ROLL CALL OF RICHARD M. STREDICKE, Council President; KATHY A. KEOLKER- COUNCIL MEMBERS WHEELER, TONI NELSON, NANCY L. MATHEWS, THOMAS W. TRIMM. MOVED BY KEOLKER-WHEELER, SECONDED BY MATHEWS, COUNCIL EXCUSE ABSENT COUNCIL MEMBER JOHN REED. CARRIED. (Position held by Councilman Hughes vacated on 7/3/89.) CITY STAFF IN EARL CLYMER, Mayor; DAN KELLOGG, Assistant City Attorney; ATTENDANCE MARILYN PETERSEN, Deputy City Clerk; DAN CLEMENTS, Finance Director; RUBEN NIETO, Personnel Director; LT. DALE BAKER, Police Department. PRESS Kathy Hall, Valley Daily News APPROVAL OF MOVED BY STREDICKE, SECONDED BY KEOLKER-WHEELER, COUNCIL MINUTES COUNCIL APPROVE THE COUNCIL MINUTES OF AUGUST 21, 1989. CARRIED. CONSENT AGENDA Items on the consent agenda are adopted by one motion which follows the listing. CAG: 89-052, Maplewood Finance/City Clerk reported bid opening 8/18/89 for Maplewood Golf Golf Course Bridge Course Bridge; 6 bids; Engineer's estimate: $166,000.00 without sales tax. Refer to Transportation Committee. Rezone: Polygon Hearing Examiner recommended approval of Polygon Corporation rezone for Corporation, R-019-89 1.2 acres located at 901 Sunset Boulevard NE from R-1, single family residential zone, to R-3, multifamily residential zone, R-019-89. Refer to Ways and Means Committee. Space Needs: Mayor Clymer requested discussion of Council/Mayor space needs. Refer to Council/Mayor Committee of the Whole for discussion at Council workshop on 8/28/89. MOVED BY STREDICKE, SECONDED BY KEOLKER-WHEELER, COUNCIL APPROVE THE CONSENT AGENDA. CARRIED. OLD BUSINESS Utilities Committee Chairman Keolker-Wheeler presented a report regarding Utilities Committee the waste reduction and recycling study, referred 12/5/88. The Utilities Garbage: Waste Reduction Committee met with the Solid Waste Coordinator and the City Attorney to and Recycling Study review the proposed solid waste ordinance. The Committee recommended that Council accept this ordinance as presented and refer it to the Ways and Means Committee for proper legislation. MOVED BY KEOLKER- WHEELER, SECONDED BY STREDICKE, COUNCIL CONCUR IN THE COMMITTEE REPORT. CARRIED. (See Ways and Means Committee report later.) Planning and Planning and Development Committee Vice-Chair Mathews presented a Development Committee report regarding the request for release of right-of-entry for First City Release of Right-of- Development Corporation (Alterra Corporation Rezone, R-129-80). The Entry: First City property is located north of SW 7th Street, east of the P-1 channel, and south Development Corporation of the railroad right-of-way. Staff reviewed the matter and reported that the right-of-entry secured by the City from First City Development Corporation is in compliance with a condition of approval for the fill and grade permit issued for the P-1 East Side Watershed Project. This condition requires the applicants of the fill and grade permit (King County and the City of Renton) to secure the leases, easements or other legal agreements to allow the temporary or permanent storage of dredged spoils on the properties abutting the project site. Based upon the Committee's review, it was recommended that the City Council approve the release of the right-of-entry as requested by Bogle and Gates, attorneys for First City Development Corporation, since the City has completed the excavation of the P-1 forebay and channel. The Committee also recommended that the Mayor and City Clerk be authorized to sign the appropriate documents. MOVED BY MATHEWS, SECONDED BY KEOLKER-WHEELER, COUNCIL CONCUR IN THE COMMITTEE REPORT. CARRIED. August 28, 1989 Renton City Council Minutes Page 251 ORDINANCES AND RESOLUTIONS Ways and Means Ways and Means Committee Chairman Trimm presented a report Committee recommending the following ordinances for second and final reading: Ordinance #4234 An ordinance was read amending Chapter 9, Uniform Fire Code, of Title Fire: Uniform Fire Code VII, (Fire Regulations) of City Code, relating to adoption of the uniform fire Ordinance code by reference and amendments thereto. MOVED BY TRIMM, SECONDED BY MATHEWS, COUNCIL ADOPT THE ORDINANCE AS READ. ROLL CALL: ALL AYES. CARRIED. Ordinance #4235 An ordinance was read amending Chapters 1, 2, 3, 9, and 17 of Title IV Building: Uniform (Building Regulations) of City Code, by adopting the 1988 editions of the Building Code Ordinance Uniform Building Code, Uniform Plumbing Code, Uniform Swimming Pool, Spa and Hot Tub Code, Uniform Housing Code, and Uniform Mechanical Code by reference. MOVED BY TRIMM, SECONDED BY MATHEWS, COUNCIL ADOPT THE ORDINANCE AS READ. ROLL CALL: ALL AYES. CARRIED. Ordinance #4236 An ordinance was read amending portions of Section 4-736 of Chapter 7, Public Works: Zoning, of Title IV (Building Regulations) of City Code relating to Manufactured Homes in manufactured homes and floodways. MOVED BY TRIMM, SECONDED BY Floodways KEOLKER-WHEELER, COUNCIL ADOPT THE ORDINANCE AS READ. ROLL CALL: ALL AYES. CARRIED. Ways and Means Committee Chairman Trimm presented the following ordinance for first reading: Garbage: Solid Waste An ordinance was read amending portions of Chapter 3, Solid Waste Management Ordinance Management, of Title VIII (Health and Sanitation) of City Code relating to solid waste. MOVED BY TRIMM, SECONDED BY KEOLKER-WHEELER, COUNCIL REFER THIS ORDINANCE BACK TO COMMITTEE FOR TWO WEEKS. CARRIED. Ways and Means Committee Chairman Trimm presented the following ordinance for first reading, advancement to second and final reading, and adoption: LID: 314 Refunding Bond An ordinance was read relating to Local Improvement District No. 314 and Issue Amendment amending Ordinance No. 4231, adopted 8/21/89, which provided for the issuance and sale of $2,785,000 par value LID No. 314 Refunding Bonds of the City of Renton for the purpose of obtaining funds with which to refund, pay and retire the City's outstanding LID No. 314 bonds. MOVED BY TRIMM, SECONDED BY KEOLKER-WHEELER, COUNCIL SUSPEND THE RULES AND ADVANCE THIS ORDINANCE TO SECOND AND FINAL READING. Upon Council inquiry, Richard Kennedy, Seattle Northwest Securities, underwriter of the bond issue, explained the purpose of the ordinance to provide the City the option of providing for or refunding certain of the term bonds that are to be called on September I, 1989. He indicated that as a result of lack of sufficient notice being given to certain holders of the term bonds being called, the amendment allows the bonds to be paid as presented or allows the bond holder to opt to wait an additional year. CARRIED. Ordinance #4237 Following second and final reading of the aforementioned ordinance, it was LID: 314 Refunding Bond MOVED BY TRIMM, SECONDED BY KEOLKER-WHEELER, COUNCIL Issue Amendment ADOPT THE ORDINANCE AS READ. ROLL CALL: ALL AYES. CARRIED. ADJOURNMENT MOVED BY KEOLKER-WHEELER, SECONDED BY NELSON, COUNCIL ADJOURN THE MEETING. CARRIED. Time: 7:45 p.m. >44iZi MARILYN . RSEN, CMC, Deputy City Clerk Recorder: Marilyn Petersen 08/28/89 • • p U' DATE: AUGUST 24, 1989 TO: PLANNING AND DEVELOPMENT COMMITTEE FROM: DONALD K. ERICKSON, ZONING ADMINISTRATOR SUBJECT: BOGLES AND GATES LETTER/RELEASE OF RIGHT OF WAY ENTRY EASEMENT • REQUEST L. The City Council reviewed a request for a release of a Right of Entry easement the City has on property owned by First City Development Corporation. The Council, on August 7, 1989, referred the matter for review to the Planning and Development Committee. BACKGROUND The First City Development Corp. property, as shown on the attached map, abuts the north side of the P-1 Forebay and Channel. The P-1 Forebay and Channel are part of the East Side Green River Watershed Project. The City of Renton and King County submitted a joint Shoreline permit and a fill and grade permit in 1981, for the construction of the Forebay and P-1 Channel which required the excavation of 500,000 cubic yards of material. The application package for these permits indicated that the excavated material might be used on or near the subject site. However, at the time the Hearing Examiner reviewed the applications, the applicants did not have easements to place any of the material on adjacent properties. One condition of approval for the fill and grade permit was the requirement for the applicants to obtain leases, easements or other legal agreements to allow the temporary or permanent storage of dredged spoils on the abutting properties. In 1983, the city of Renton secured a Right of Entry from the then owners of the subject property, JAG-Renton Associates. The purpose of the agreement was to allow the City the right "...to place earth fill over, through, across and upon..." the property outlined on the attached map. This document appears to have been prepared in compliance with the Examiner's condition for such document. Ownership of the property was transferred to First City Developments Corporation since the signing of the agreement. r. Memo/Bogies and Gates August 24, 1989 Page 2 • ANALYSIS Staff in the Public Works Department and the Community Development Department have reviewed the request submitted by Bogies and Gates. Staff do not see a continued need for the easement since the original excavation activity for the construction of the P-1 Forebay and Channel is now complete to S.W. 16th Street (Phase I of the Watershed Project in Renton). Staff does not see a future need for the City to dispose of dredging spoils or other material on the site. It should also be noted that the release of the easement will not prohibit us from entering the site for on-going inspections or taking corrective actions if needed. RECOMMENDATION Staff recommend that the Planning and Development Committee recommend to the City Council approval of the release of the Right of Entry easement over the First City Development property as identified in the recorded document No. 8309300741 • DKE/McK:m jp Suite 4170 800 Fifth Avenue Seattle,Washington 98104 (206)624-9223 Facsimile(206)382-9752 PL.ANNii'.t+a IJ;Ia ', I1RSICriy DEVELOPMENTS CORP. CITY OF 1 EN ION pp JUL51989 r � July 3 , 1989 Mr. Donald Erickson Zoning Administrator City of Renton Department of Community Development 200 Mill Avenue South Renton, Washington 98055 RE: BLACKRIVER CORPORATE PARK EIS - PHASE VII AND EIS - NORTHSIDE Dear Don: I received a copy of the June 23 , 1989 letter form Jonathan Ives to you relative to the wetlands. Please advise what you deem the appropriate action as a result of this letter. Very truly yours, FIRST CITY DEVELOPMENTS CORP. • 70/rW Mark Miller Vice President Development • MM:sp A ' Suite 4170 • 800 Fifth Avenue Seattle,Washington 98104 (206)624-9223 Facsimile(206)382-9752 PLANNING DIVISION slCffli DEVELOPMENTS CORP. CITY OF REN ON JUL 5 1989 E ) ir, 1-1) July 3 , 1989 Mr. Donald Erickson Zoning Administrator City of Renton Department of Community Development 200 Mill Avenue South Renton, Washington 98055 RE: BLACKRIVER CORPORATE PARK Dear Don: As a follow up to my letter of June 26, 1989, I have driven the entire site with Jerry McCann of Continental Dirt. As a result of that visit, I have directed him to do the following: • 1. At the western end of the property, next to the flood control building, we are installing a barricade to prevent traffic onto the road adjoining the Burlington Northern Railroad track. 2. At the entrance of Upper Tract B we are installing a barricade to prevent vehicular traffic from driving down adjacent to the Herron Rookery. 3 . In addition, along Oakesdale and Seventh, we are installing new "No Trespassing" signs. 4. Finally, to the north of the new Rivertech Office Building, we are installing a barricade to prevent traffic driving along Burlington Northern Railroad. I feel these three blockades should prevent apparent dumping that has been going on. This work should be done no later than Friday, July 7, 1989. Upon completion of the barricade installation, I will advise you in writing that the work has been done. July 3 , 1989 Page two We will again, ask at that time you cooperation in support in trying to get the City of Renton police to help in the monitoring of this area. Very truly yours, FIRST CITY DEVELOPMENTS CORP. Mark Miller Vice President Development MM:sp 4111 `+ `t CITY OF RENTON COMMUNITY DEVELOPMENT DEPARTMENT Earl Clymer, Mayor Planning Division June 22, 1989 Mark Miller First City Development Corporation Suite 4170 800 Fifth Avenue Seattle, WA 98104 RE: Fencing at Black River Corporate Park Site Dear Mr. Miller: Attached please find a copy of a letter sent to you on June 8, 1989 by mail and as a "FAX" on June 9, 1989 regarding the above noted site. The letter indicated that you would have one week from June 8 to tell me how you intend to comply with the conditions outlined in the letter. We are uncertain whether or not you received the letter since you have not yet responded and the deadline has expired. Therefore, in order to be certain that you receive a copy of the letter so that you have an opportunity to convey your intentions to comply with these conditions, today I am sending a copy of the June 8, 1989 letter to you by courier for delivery this date. You will have until 5:00,PM, June 27, 1989, to reply as requested before we begin enforcement action. • ly, Donald K. Erickson, AICP Zoning Administrator DKE:mjp cc: Larry Warren, City Attorney Terra Prodan, Department of Ecology Shorelancis Management Section MS PV-11 Olympia, WA 98504-8711 • 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 r CITY OF RENTON COMMUNITY DEVELOPMENT DEPARTMENT Earl Clymer, Mayor Planning Division June 13, 1989 Mr. Arthur L. Hitchings Bush, Roed & Hitchings, Inc. 2009 Minor Avenue East Seattle, Washington 98102 RE: Revision to Black River Corporate Park Segregation • Dear Mr. Hitchings: This letter is inform you that the legal submitted to our office for the revision to the Black River Park Segregation approved last year is not acceptable at this time. The Design Engineering staff have reviewed the legal and submitted the following comments which we are passing on to you: - o Parcel 3 1. A traverse line shown on plans was not referenced to an existing survey and lot line adjustment. Question raised as to why this was not done. 2. Inadequate information on Naches to follow first easement. 3. Clarification is needed for the second easement. The legal for the easement begins "Commencing at the most westerly corner thereof ....". Question is it appears to be the lack of identification of the reference point for the west corner. 4. Correction needed to 3rd line from the bottom of page 3 of the legal description for the new Parcel 3. Please change the word "east" to "west". o Parcel 6 Appears to be ok. o Parcels 7 and 8 Inadequate information on Naches to follow first easement. 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 Arthur L. Hitchings • Revision to Black RM.. Corporate Park Segregation June 13, 1989 Page 2 Finally, in order to ensure that future owners of the Black River Corporate Park parcels (northside of Forebay) are aware of the environmental sensitivity of the property (i.e. wetlands, Heron rookery), please provide a covenant that: a) acknowledges that the site is environmentally sensitive and any development of the site must be sensitive to the features of the site and the Heron rookery, and b) that these environmental features of the site may affect the scheduling and implementation of any future development of the site. We will not be able to issue our decision on the proposed revision to the segregation until the above items have been corrected. If you have any questions, please call Jeanette Samek- McKague at 235-2550. Sincerely, Donald K. Erickson,, AICP Zoning Administrator DKE/McK:mjp cc: Mark Miller First City Development Corporation 800 Fifth Avenue, Suite 4170 Seattle, WA 98104 Royce A. Berg LPN Architects 1127 Pine Street, Suite 300 Seattle, WA 98101 Larry Warren, City Attorney 7 `•tirA iln it Igrmagr�,„ P 1 L CI IRIS'I1NE O. GREGOIRE1111 •I Ili 1� Dream yy ,ciy Ifl M7 STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV-11 • Olympia, Washington 911504-8711 • (206) 459-6000 CITY OFING ENTO DIVISION CITY OF RENTON March 3, 198910 MAR 6 1989 • ECEAVIEP Mr. Don Erickson City of Renton 200 Mill Avenue South • Renton, WA 98055 • Dear Mr. Erickson: Thank you for the opportunity to comment on the scoping no- tice for the Black River Corporate Park (ECF-109-88) . We re- viewed the environmental checklist and have the following comments. • We are pleased to see the city intends to consider shoreline resources in its evaluation of the proposed development. It appear the environmental impact statement will cover our ar- eas of interest, however, we would like to note the follow- ing: 1. Technical information is needed on (1) movement of water through the site, both surface and subsurface; (2) quantities of such water; (3) significance of the proposed development to hydrology, for example, how compression from filling would impact the city's water supply and the forest preserve area on the site; and (4) how significant impacts would be avoided. 2 . The applicant should obtain technical information on the wetlands on the site. This should include the existing func- tions and values, and how impacts would be avoided. For in- formation on the wetland methodology Ecology uses, please contact Ms. Michelle Stevens of the Wetlands Section at (206) 459-6765. If you have any questions, please call Ms. Terra Prodan of the Shorelands Program at (206) 438-7106. Sincerely, V iVeat," Barbara J. Ritchie . ) T Environmental Review Section cc: Linda Rankin, Shorelands Michelle Stevens, Wetlands • ‘PW211 11y1T1ETR® d1 Municipality of Metropolitan Seattle Exchange Building • 821 Second Ave. • Seattle, WA 98104-1598 PLANNING DIVISION March 2, 1989 CITY OFRENTON MAR 6 1989. n • Environmental Review Committee c/o Donald K. Erickson Zoning Administrator Planning Department 200 Mill Avenue South Renton, Washington 98055 . Determination of Significance File No: ECF-109-88 Dear Environmental Review Committee: Metro staff has reviewed this proposal and anticipates no significant impacts to its wastewater facilities. Water Quality The EIS should make clear what the ultimate receiving water is. Does the drainage ditch go to the Green River? Impacts to Ultimate as well as intermediate receiving waters should be assessed, and mitigation proposed. Public Transportation Metro provided comments in response to a scoping notice on an earlier phase of this development in a January 4, 1989 letter (re. : Renton project file number ECF-071-88) . In our opinion those comments apply to this phase as well. In addition, we suggest that the Transportation System Management (TSM) discussion in the EIS for each phase include a treatment of the cumulative impacts of both phases and be based on an evaluation of the Transportation Management Plan (TMP) referred to in our January 4 letter. The statement under item B. 14. g in the checklist accompanying the current scoping notice appears to be in error. To our knowledge no final TMP is in place between the project proponent and Metro. r _ City of Renton March 2 , 1989 Page Two In any case a TMP must be between the proponent and the City of Renton, not between the proponent and Metro (although Metro can be a party to the TMP) . Thank you for the opportunity to review and comment. Sincerely, Gregory M. Bush, Manager Environmental Planning Division GMB:wsg4435 cc: Carol Thompson 1 5t I ,1 1 1.� ,. RENTON %! CITY OF "' COMMUNITY DEVELOPMENT DEPARTMENT Earl Clymer, Mayor Planning Division June 8, 1989 Mark Miller First City Development Corporation Suite 4170 800 Fifth Avenue Seattle, WA 98104 RE: Fencing at Black River Corporate Park Site Dear Mr. Miller: I recently had the opportunity to visit a site near your property and took a visit to the Black River Corporate Park site. I was dismayed to find that once again the fencing has been removed from the some of the roadways leading into the site (see Attachment A). Without these roadways being blocked the public can drive onto the site within close range of the heron rookery. We have no way of ensuring that our police department can deter persons from driving onto the property unless these roadways are barricaded and the site posted. As you recall, we talked about First City Development putting in either posts or moving some stockpiled dead trees onto the roadway to deter auto and motorcycle traffic. Further, illegal dumping has occurred on the site which is shown on the attached map. The site on the south side of the Forebay is one which we brought to your attention in our letter to you dated February 16, 1989. This site has plaster board, leaves and branches, and asphalt. Another area of illegal dumping is located in the northeast corner of the site near the Burlington Northern railroad tracks. This site is divided into five piles located near the fenced portion of the roadway (one of the areas where the fencing is down). The debris includes a broken couch, rusty barrels, plaster board, a mattress, a cabinet, rugs, and other miscellaneous items. As we noted in our earlier letter, this debris must be removed as soon as the Heron fledglings leave their nests. Many of the "No Trespassing" and "No Hunting" signs, particularly near the intersection of Oakesdale Avenue SW and SW 7th Street as well as along Oakesdale Avenue SW, are damaged and need replacing. Please do so immediately as their absence endangers the safety of the Heron population on your site. 200 Mill Avenue South - Renton, Wachinetnn 9Rfcc - c-1«n i - Mr. Mark Miller Black River Corporate l Fencing June 8, 1989 Page 2 As you know, this has been an on-going problem (reference lett rs of November 1, 1988, November 8,, 1988, and February 16, 1989 from Jerry Lin to yourself). As we stated in our letter of February 16, 1989, you should replace the wire fencing used to block the access points to the site and the roadways leading tow,rd the Heron rookery with logs. As you know, the fencing was a requirement of the fill and grade permit issued for the site. Whether an applicant is actually conducting work under the permit or not does not have a bearing on compliance with the requirem nts of the permit which are not construction specific. Since we have already been working with you for several months in taking the above corrective measures and there have been reports of hunting, multiple terrain vehicles, and even helicopters, on the site in close proximity to the Hero rookery, we will give you one week to tell us how you intend to comply with these conditions. Failure to take corrective action, together with notifying our office of steps to l;e taken to remedy the situation, will force us to take action. Remedies include making' these corrections ourselves and applying a lien on the property to cover our costs as well legal actions. If you have any questions or need clarification please contact me at 235-2550. Sincerely, Donald K. Erickson, AICP Zoning Administrator • DKE:mjp • cc: Mayor Earl Clymer City Attorney Larry Warren Community Development Director Ken Nyberg i Planning Manager Larry Springer ` / n" ic' �y��'� ���� - .�� ,�� ���� � �� , OWN " e4fic-e' S4:Sol IVWor � 121 SW 171 Street Seattle, Wa 98166 May 12, 1989 pUN0|NA DIVISION ciTY OFAENTON Mr, David Schuman First City Equities 84AY 1 5 1989 800 Fifth Avenue DO. Seattle WA 98104 �� 0* R� O YN 6� O8 , HU �� 0y \� � \0 \� L�� Dear Mr. Schuman and First City Equities, In January 1989 I first heard about the confl ' ct over the use of wetlands containing a Heron Rookery in Rennon for your Black River Corporate Park developments. I underst :nd this discussion has been going on for several years; I was out of the U. S. for two years. I have a keen concern and interest in land use decisions and have chosen to use my personaL time to follow selected issues and to speak my opinions to appropriate parties. It is in that spirit that I write to tell you that on March 11 , 1989 I visited the site with the Seattle Audubon Society. More than thirty of us learned the archaeology, history, wildlife habitat, drainage control , and recreational asbects of the area in question. I saw the results of actions taken to drain wetland water, to cut down large native trees, and to remove native plant habitats. I saw sketches of proposed building locations that do not appear to leave adequate buffer for the He -on Rookery. I believe that the proposed uses for the land ' y First City -is in opposition to what I consider suitable use of - his very important wetland, wildlife' habitat, and historical site. I intend to join the groups and the individuals who are monitor ' ng the City of Renton procedures for dealing with your propos. ls for this land. � � I have entered my name as a Party of Record wi- h the City; I am telling other people about the Heron Rookery, taking them to see it, and explaining the controversy about how land will be used. I would appreciate receiving a response from ycur company. Perhaps you can elaborate for me how your plan would include the preservation of the aspects of this land that e citizens consider valuable. Sincerely - Jean Sundborg • F STAD y CHRISTINE O. GREGOIRE wN°€ ; Director ''yl 1889 a°y • STATE OF WASHINGTON DEPARTMENT OF ECOLOGY PLANNING DIVISION Mail Stop PV-11 • Olympia, Washington 98504-8711 • (21 459-6000 CITY OF RENTON March 3, 1989 [ñ . MAR 6 1989 EcEGv EP Mr. Don Erickson City of Renton 200 Mill Avenue South Renton, WA 98055 Dear Mr. Erickson: Thank you for the opportunity to comment on t e scoping no- tice for the Black River Corporate Park (ECF- 09-88) . We re- viewed the environmental checklist and have t e following comments. We are pleased to see the city intends to consider shoreline resources in its evaluation of the proposed development. It appear the environmental impact statement wil cover our ar- eas of interest, however, we would like to no e the follow- ing: 1. Technical information is, needed on (1) mo ement of water through the site, both surface and subsurface (2) quantities of such water; (3) significance of the propos d development to hydrology, for example, how compression from filling would impact the city's water supply and the forest preserve area on the site; and (4) how significant impacts ould be avoided. 2 . The applicant should obtain technical information on the wetlands on the site. This should include the existing func- tions and values, and how impacts would be ay.ided. For in- formation on the wetland methodology Ecology ses, please contact Ms. Michelle Stevens of the Wetlands ection at (206) 459-6765. If you have any questions, please call Ms. Te ra Prodan of the Shorelands Program at (206) 438-7106. Sincerely, Barbara J. Ritc ie Environmental Review Section cc: Linda Rankin, Shorelands Michelle Stevens, Wetlands ° 3 4mETRD Municipality of Metropolitan Seattle Exchange Building • 821 Second Ave. • Seattle,WA 98104-1598 PLANNING DIVISION March 2, 1989 CITY OF RENTON MAR 6 1989 DI EC > M Environmental Review Committee c/o Donald K. Erickson Zoning Administrator Planning Department 200 Mill Avenue South Renton, Washington 98055 Determination of Significance File No: ECF-109-88 Dear Environmental Review Committee: Metro staff has reviewed this proposal and anti ipates no significant impacts to its wastewater facilitie . Water Quality The EIS should make clear what the ultimate receiving water is. Does the drainage ditch go to the Green River? Impacts to Ultimate as well as intermediate receiving wate s should be assessed, and mitigation proposed. Public Transportation Metro provided comments in response to a scoping notice on an earlier phase of this development in a Januar, 4, 1989 letter (re. : Renton project file number ECF-071-88) . In our opinion those comments apply to this phase as well. In addition, we suggest that the Transportation System Management (TSM) discussion in the EIS for each phase include a treatment of the cumulative impacts of both phases and be based on an evaluation of the Transportation Management Plan (TMP) referred to in our January 4 letter. The statement under item B. 14. g in the checklis accompanying the current scoping notice appears to be in error. To our knowledge no final TMP is in place between the project pro•onent and Metro. City of Renton March 2 , 1989 Page Two In any case a TMP must be between the proponent and the City of Renton, not between the proponent and Metro (al hough Metro can be a party to the TMP) . Thank you for the opportunity to review and co ent. Sincerely, .Gregory M. Bush, Manager Environmental Planning Division GMB:wsg4435 cc: Carol Thompson C$ CITY F RENTON PUBLIC WORKS DEPARTMENT Earl Clymer, Mayor Tr ffic Engineering Division MEMORANDUM PLANNING R NTONN CITY 0 DATE: March 2, 1989 D . MAR 3 1989 ECEIVE TO: Don Erickson, Zoning Administrator FROM: Gary NorrisKaffic Engineer SUBJECT: Black River Corporate Park SA-109-88, SM-109-88 Amendment Request Please amend our above-referenced review and add an item . to the attachment which refers to a latecomer's agreement as follows: 5. Latecomer's fee for the traffic signal installations .;s follows: Intersection of SW 7th Street & Hardie Ave. SW 2.18 x 15% x 21 x 597,298 = $4,101.65 1,000 Intersection of SW Grady Way & Powell Ave. SW 3.69 x 15% x 21 x 597,298 = $6,942.69 1,000 Total Latecomers Fee $4,101.65 + $6,942.69 = $11,044 .34 Send fee to: Holvick deRegt Koering 1000 SW 7th Street Renton, WA 98055 Attention: Loren Davis CEM:ad Attachment CEM050 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2620 `ems:..',..•� . RENTON COMMUNITY DEVELOPMENT DE ARTMENT . . : Y DEVELOPMENT APPLICATION REV EW SHEET . ECF-109-88 APPLICATION NOS. :.,,' .•SA-109-88, SM-109-88 PROPONENT: ; First City DevelopmentCorpor••tion PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for sit- plan .approval to allow the construction of an office complex having 597, ,98 square feet. The complex will consist of seven buildings: 3 ,three- tory buildings, 1 four- story building, 2 five-story buildings, and 1 thr-e level parking structure. LOCATION: Located on the north side of theP-1 De .ention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHED LED ERC DATE: r ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED EARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT, RANGE ' LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING 'IVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION:• Traffic Engineering APPROVED APPROVED WITH CONDITI.NS k- NOT APPROVED See attachment. ` ^R+nr.7,1 RA? &PTIM? f3P • iZlu/A' DATE d /��s SIGNATURE OF DIRECTOR ,OR THORIZ REPRESENTATIVE PRESENTATIVE D REV. 6/88 • T' . SA-109-88, SM-109-88 ' � ;'. First City DevelopmentCorporation • . • Black River Corporate Park ' • • • {• , r II • • I •• j • a - 1. Naches Ave. SW should not be cul-de-saced. Naches should loop all the way back to Monster: Road and be a dedicated public right-of-way. r"°'' , i • • 2. Traffic Benefit Zone (SW Grady Way & Rainier corridor) bonding amount . for benefit :zone assessment $152.00 per trip generated. ,:,^ } Trip. rate per EIS 21 vehicle trips/1,000 s.f. ' ' r ' ...I. • or• 12,543 total trips ' $152.00 x 12,543. = . $1,906,536.00 assessment amount • f'•••':`,; See attachment for trip rate and assessment rate sources. j '''y 3. Approved,,street.light,drawings will be required. ,:!%:,'-. 4.• Traffic warrantanalysis required for the following: .; a) SW 7th Street &; Naches . , , j: b) SW 7th Street &'Powell Ave. SW i i i • i . •• • . • % r _ j 'j i • " t i' ,• 12 i i • r , h • . • . ' : ,. '''.4...• ..,, ,.:.,; ..:: ,, , .' .1. ; :.... .. . ; 'ri'''..;:. ' 'f.:'11.:...:::. ,'.:..•:;:: • • ",t?.1 ,'' , '40)14tiatAi;C. . 'Yn8!YhwT.3•`.41,M�xrmit/t,c.hr+i..1V�r n.,.?tr;q`�,, :.'=rv,i, .dn,,,J.:. r.•:. . r ...,1...,,. ., _ •.. . . L-w .c . 4A.?TATg O� AIN s: is . CURT SNITCH ::cf' \-‘�Q Director ���1889 ai)Y - w STATE OF WASHINGTON DEPARTMENT OF WILDLIFE 16018 Mill Creek Blvd.. Mill Creek, WA 98012 Tel. (206) 775-1311 February 22, 1989 muumuu a 1989 Donald K. Erickson FEB 2 4 Zoning Administrator ECEIVE City of Renton Department of Community Development 200 Mill Avenue South Renton, Washington 98055 RE: DETERMINATION OF SIGNIFICANCE - FIRST CITY DEVELOPMENTS CORPORATION - SM-109-88 Dear Mr. Erickson: The Department of Wildlife has received your document and we concur with the determination rendered. In our opinion the scope of the EIS should include all of the clearing, grading, and development impacts which have occurred on the project site to date. That is, preproject conditions should be recognized as existing conditions on the site prior to December 1986. After that time major clearing was done, valuable wetlands were filled, and other work resulting in negative impacts to the environment was carried out. If the mitigation measures for this project are to be considered objec- tively, all of the impacts which have occurred - and will occur - on the site, must be considered as well . We note that the scoping notice states that impacts to surface and ground- water, wetlands, flora (wetland) , and fauna (Great Blue Heron) are among the elements to be considered. In our opinion, this is an incomplete list. Water and wetlands should certainly be included. However, under flora, old-growth black cottonwood forest should be included, as well as wetlands. There were also some valuable scrub-shrub uplands., and some deciduous upland forest, on the site, prior to clearing. Under the heading of fauna - waterfowl , raptors, passerine birds, woodpeckers, and small mammals should be included, as well as reptiles, amphibians, and fish. 3 Muller to Erickson February 22, 1989 Page 2 We trust the City will assure that a comprehensive environmental analysis will be prepared, so that a valid decision-making process can be imple- mented. Thank you for sending your document. We appreciate the opportunity to comment. Sincerely, • 44torj-ge 4 .5441,1" Theodore A. Muller Regional Habitat Program Manager TAM:kh cc: Habitat - Olympia %o 0 CITY OF RENTON ..lL DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNING DIVISION February 20, 1989 To Interested Persons/Firms: RE: First City, Developments Corporation Black River Corporate Park/Buildings 18-24 Statement',of Interest & Qualifications The City of Renton is currently seeking qualified candidates to assist in preparing an Environmental Impact Statement for First City Developments Corporation proposed seven (7) building office complex consisting of 597,298 square feet. The complex will consist of 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. The site is part of the Black River Corporate Park office complex located 'north of the P-1 Detention Pond, east of Thomas Avenue S.W. (extended), south of the Burlington Northern Railroad tracks, and west of Oakesdale Avenue S.W. The development site is located in an area governed by the City's Shoreline Master.'Program and the site has wetlands which have been identified in a City document for preservation. Preliminary scoping has identified the following issues that will need to be addressed in the draft EIS document: l o Water The site is adjacent to the P-1 Detention Pond, and has wetlands which have been identified for preserving and integration with any proposed development on the site. Storm water runoff is proposed to be collected by a storm water system which includes a series of grasslined swales which eventually drain into the P-1 Detention Pond. The pond provides feeding areas for a variety of wildlife in the area including Great Blue Heron from a nearby rookery. Concerns include the impact the project will have on the recharging of the wetland areas on the site; the impact of the project on the water quality of the pond and the ability of the proposed biofiltration system to accommodate the storm water generated on the site; and the impact of the project on the existing surface and groundwater hydrology. 200 Mill'Avenue South - Renton, Washington 98055 - (206)235-2550 .I Statement of Interest ar'-7ualifications Black River Corporate c, Phase VII (EIS) February 20, 1989 Page 2 o Flora and Fauna The project may significantly impact the flora and fauna in the area with respect to wildlife habitat and sources of food due to the potential for changing the microclimate of the area as a result of both the amount of impervious surfaces proposed for the project and the removal of existing food sources. Also, there is a concern about the impact of human activity on the wildlife on adjacent or nearby sites. o Noise The location of the project adjacent to the P-1 Detention Pond wildlife habitat areas may significantly impact the activity of the wildlife in the area during the construction period as well as in terms of incrementally increasing the level of noise in the area. o Light and Glare Light and glare impacts due to the materials used for the building and the light and glare from the parking lot areas may have a significant impact on the wildlife, particularly the Heron Rookery. o Aesthetics The EIS should look at design alternatives including variations in the building configuration setbacks from the shoreline and building height as well as the amount of impervious surface in order to achieve a development which blends with and is compatible with the wildlife habitat which has developed in the area around the P-1 Forebay. Firms interested in being considered for this work should send a letter of.interest and statement of qualifications to the Environmental Review Committee, in care of me, no later than March 3, 1989. Preliminary estimates for finishing the draft EIS is May 1, 1989. If you have any questions about this project please call me or Jeanette Samek- McKague at 235-2550. (7) V Donald K. Erickson, AICP Zoning Administrator DKE:McK:mjp • •. . No . . . ICE ,. , .. . . . , . .„ . . • • L. , I .• ..... .. , . ENVIRONMENTAL DECLARATION •. j , .. APPLICATION NO. ECF-109-88, SA-109-88, SM-109-88 FIRST CITY DEVELOPMENTS CORPORATION :.;� APPLICANT • • • ''' PR OSF ACTof APPLICATION FOR SITE PLAN APPROVAL TO ALLOW y : ECONSTRUCTIONOF AN OFFICE COMPLEX HAVING 597,298 SQ. FT. . • • • THE COMPLEX WILL CONSIST OF SEVEN BUILDINGS: 3 THREE-STORY • • • `! BUILDINGS, 1 FOUR-STORY BUILDING, 2 FIVE—STORY BUILDINGS, AND 1 • ','� GENERAL LOCATION AND/OR ADDRESS STRUCTURETHREE • PARKING ; SOUTH SIDE OF THE BURLINGTON NORTHER RAILROAD; WEST OF THOMAS • AVENUE SW, EXTENDED; NORTH OF THE P-1 DETENTION POND; AND EAST OF OAKESDALE AVENUE SW. :';a POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION. .. . • • y THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE , (E.R• .C.) HAS DETERMINED THAT THE '. ' - •i2 PROPOSED ACTION H. DOES DOES NOT : :''3. a. HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. • • • AN ENVIRONMENTAL IMPACT STATEMENT •• 00. ILL WILL NOT ' BE REQUIRED. '; THE CITY OF RENTON WILL NOT ACT ON THIS PROPOSAL FOR 15 DAYS FROM THE DATE BELOW. • i COMMENTS MUST BE RECEIVED BY MARCH 6, 1989 . AN APPEAL OF THE ABOVE DETERMINATION MAY r BE FILED WITH THE RENTON HEARING EXAMINER ' BY 5:00 P.M., FOR FURTHER INFORMATION, CONTACT THE CITY OF RENTON •!'1 PLANNING DIVISION AT 235-2550. ti • ' �'- DO NOT REMOVE THIS NOTICE - - R WITHOUT PROPER AUTHORIZATION. , • rt — . ' CERTIFICATION -' ___.. I , tiERS ' f ,Llkfl . , HEREBY CERTIFY THAT E (3.) COPIES OF THE ABOVE DOCUMENT WERE POSTED BY ME IN 14 E ( 3 ) CONSPICUOUS • • PLACES ON OR NEARBY THE DESCRIBED PROPERTY ON Tee), H 1 1C189 . ATTEST: Subscribed and sworn to before me, e Notary Public, n end for the State of Washington • 6Q.A-A-AtI:111/4/1;10( residing in �`��, it) ' , onthe ;9L}(�i, SIGNED : day of C, N OT C E _ N, NVI ' ONMENTAL DECLARATION ECF-109-88, SA-109-88, SM-109-88 APPLICATION NO. FIRST CITY DEVELOPMENTS CORPORATION APPLICANT PROPOSED ACTION APPLICATION FOR SITE PLAN APPROVAL TO ALLOW • THE ONSTR CTION OF AN OFFICE COMPLEX HAVING 597,298 SQ. FT. . THE COMPLEX WILL CONSIST OF SEVEN BUILDINGS: 3 THREE-STORY BUILDINGS, 1 FOUR-STORY BUILDING, 2 FIVE-STORY BUILDINGS, AND 1 THREE GENERAL LOCATION AND/OR ADDRESS STRUCTURE PARKING SOUTH SIDE OF THE BURLINGTON NORTHER RAILROAD; WEST OF THOMAS AVENUE SW, EXTENDED; NORTH OF THE P-1 DETENTION POND; AND EAST OF OAKESDALE AVENUE SW. POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (E.R.C.) HAS DETERMINED THAT THE PROPOSED ACTION TOES DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. AN ENVIRONMENTAL IMPACT STATEMENT ILL WILL NOT BE REQUIRED. THE CITY OF RENTON WILL NOT ACT ON THIS PROPOSAL FOR 15 DAYS FROM THE DATE BELOW. COMMENTS MUST BE RECEIVED BY MARCH 6, 1989 AN APPEAL OF, THE ABOVE DETERMINATION MAY BE FILED WITH THE RENTON HEARING EXAMINER BY 5:00 P.M., FOR FURTHER INFORMATION, CONTACT THE CITY OF RENTON PLANNING DIVISION AT 235-2550. • DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION. NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON, WASHINGTON The Environmental Review Committee . (ERC) has issued a Determination of Significance for the following project: FIRST CITY DEVELOPMENTS CORPORATION ECF; SA; SM-109-88 Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. The property is located on the south side of the Burlington Northern Railroad; west of Thomas Avenue SW, extended; north of the P-1 Detention Pond; and east of Oakesdale Avenue S.W. Further information regarding this action is available in the Community Development Department, Municipal Building, Renton, Washington, 235-2550, Agencies, tribes, and members of the public are invited to comment on the scope of the EIS. Comments must be submitted to the City of Renton by 5 p.m. on March 6, 1989. Any appeal of the ERC action must be filed with the Renton Hearing:. Examiner by 5 p.m. on February 27, 1989. Published: February 13, 1989 %! 0 CITY OF RENTON "LL DEPARTMENT OF COMMUNITY DEVELOPMENT - Earl Clymer, Mayor PLANNING DIVISION February 20, 1989 Mr. Mark Miller First City Developments Corporation 800 Fifth Avenue, Suite 4170 Seattle, Washington 98104 RE: First City Developments Corporation Black River Corporate Park/Buildings 18-24 File SA-109-88 Dear Mr. Miller: This letter is to inform you that the Environmental Review Committee completed their - review of the environmental impacts of the above referenced project at their meeting on February 8, 1989, and issued a Determination of Significance for the following reasons: 1) that the development site is located in an area governed by the City's Shoreline Master Program and the site has wetlands identified in a City document for preservation. In previous correspondence and discussions with representatives of First City Developments, the City indicated the need to preserve certain areas of the wetlands identified on the site which has not been reflected in the submitted site plan; 2) that the site plan, as submitted, does not reflect the City's other concerns regarding the project with respect to the location of buildings and human activity on the heron rookery as well as the adjacent wildlife feeding and habitat areas; 3) that the site plan does not reflect sensitivity to the wildlife area which has developed over time adjacent to the site. Because the Environmental Review Committee issued a Determination of Significance, an official scoping notice is being circulated. Preliminary scoping has identified the following issues that will need to be addressed in the draft EIS document: 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 t Environmental Determ ion Black River Corporate _ . k, Phase VII (EIS) February 20, 1989 Page 2 o Water The site is adjacent to the P-1 Detention Pond, and has wetlands which have been identified for preserving and integration with any proposed development on the site. Storm water runoff is proposed to be collected by a storm water system which includes a series of grasslined swales which eventually drain into the P-1 Detention Pond. The pond provides feeding areas for a variety of wildlife in the area including Great Blue Heron from a nearby rookery. Concerns include the impact the project will have on the recharging of the wetland areas on the site; the impact of the project on the water quality of the pond and the ability of the proposed biofiltration system to accommodate the storm water generated on the site; and the impact of the project on the existing surface and groundwater hydrology. o Flora and Fauna • The project may significantly impact the flora and fauna in the area with respect to wildlife habitat and sources of food due to the potential for changing the microclimate of_the area as a result of both the amount of impervious surfaces proposed for the project and the removal of existing food sources. Also, there is a concern about the impact of human activity on the wildlife on adjacent or nearby sites. o Noise The location of the project adjacent to the P-1 Detention Pond wildlife habitat areas may significantly impact the activity of the wildlife in the area during the construction period as well as in terms of incrementally increasing the level of noise in the area. • o Light and Glare Light and glare impacts due to the materials used for the building and the light and glare from the parking lot areas may have a significant impact on the wildlife, particularly the Heron Rookery. o Aesthetics The EIS should look at design alternatives including variations in the building configuration setbacks from the shoreline and building height as well as the amount of impervious surface in order to achieve a development which blends with and is compatible with the wildlife habitat which has developed in the area around the P-1 Forebay. As mentioned above, a scoping notice is now being circulated and was sent to you. As you are aware the comment period will end at 5:00 p.m. on March 6, 1989 and that a fourteen (14) day appeal period running simultaneously with the comment period ends at 5:00 p.m. on February 27, 1989. Environmental Determi on Black River Corporate Phase VII (EIS) February 20, 1989 Page 3 We have sent notices to various consulting firms who have expressed an interest in preparing EIS documents. Following the end of the comment period, the City will select three (3) or four (4) of the interested consulting firms to interview and we will coordinate the final selection with you. If you have any questions or desire clarification of the above, please call me or Jeanette Samek-McKague at 235-2550. 1 , • Donald K. Erickson, AICP Zoning Administrator DKE:McK:mjp 116 AFFIDAVIT OF PUBLICATION rbhic NoticeICE OF ENVIRONMENTHL DETERMINATION Alte SpnnP r bein first dul sworn on oath states MEN N, REVIEW TOMMITTEE Y � g Y ENTON, WASHINGTON that he/she is the Chief Clerk of the The Environmental Review Committee (ERC)has issued a Determination of Signif- icance for the following project: FIRST CITY DEVELOPMENTS CORPO- VALLEY DAILY NEWS RATION (ECF; SA; SM-109-88) Application for site plan approval to allow • Kent Edition • Renton Edition • Auburn Edition the construction of an office complex hav- ing 597,298 square feet. The complex will Daily newspapers published six (6) times a week.That said newspapers consist of seven buildings: 3 three-story are legal newspapers and are now and have been for more than six buildings, 1 four-story building, 2 five story buildings, and 1 three level parking struc- months prior to the date of publication referred to,printed and published ture. The property is located on the south in the English language continually as daily newspapers in Kent, King side of the Burlington Northern Railroad; County, wesWashington.The ValleyDailyNews has been approved as a legal north of Thomas Avenue Pon ; and east g PP g of the P-1 Detention Pond; and east newspaper by order of the Superior Court of the State of Washington for of Oakesdale Avenue S.W. King County. Further information regarding this action is available in the Community Development Department, Municipal Building, Renton, WaThe notice in the exact form attached,was published in the Kent Edition and members 235-2550,fthepublicAgencies,rinvited tribes, and members of the are to , Renton Edition x , Auburn Edition , (and not in comment on the scope of the EIS. Com- supplement form) which was regularly distributed to its subscribers ments must be submitted to the City o; Renton by 5 p.m. on March 6, 1989. during the below stated period.The annexed notice a Any appeal of the ERC action must be Notice of Environmental Determination filed with the Renton Hearing Examiner by 5 p.m. on February 27, 1989. Puished was published on February 13 , 1989 R5189 News R5189ebruary 13, 1989 Valley Daily • The full amount of the fee charged for said foregoing publication is the sum of $ 2 4 3? Subscribed and sworn to before me 's ay oke tip„p r y 19 g Notar ublic for the State of Washington, residing at Federal Way, King County, Washington. VDN#87 Revised 11 86 . CITY OF RENTON DETERMINATION OF SIGNIFICANCE AND REQUEST FOR COMMENTS ON SCOPE OF EIS FILE NUMBER(S) : ECF-109-88 DESCRIPTION OF PROPOSAL: Black River Corporate Park Applications for site approval and shorelines substantial development permit to allow the construction of a seven building office complex having approximately 597,298 square feet of space on 42 acres of a 61 acre site. PROPONENT: First City Developments Corporation- LOCATION OF PROPOSAL: Property located north of the P-1 detention pond; west of Thomas Avenue S.W. extended; south of the Burlington Northern Railroad tracks; and east of Oakesdale Avenue S.W. EIS REQUIRED. The lead agency has determined this proposal is likely to have a significant impact on the environment. An environmental impact statement (EIS) is required under RCW 43 .21C. 030(2) (c) and will be prepared. An environmental checklist or other materials indicating likely environmental impacts can be reviewed at our offices. LEAD AGENCY: Environmental Review Committee City of Renton The lead agency has identified the following areas for discussion in the EIS: water (surface and groundwater) , wetlands, flora (wetland) , fauna (Great Blue Heron) , light and glare, land and shoreline use, recreation, and aesthetics. SCOPING: Agencies, affected tribes, and members of the public are invited to comment on the scope of the EIS. You may comment on alternatives, mitigation measures, probable significant adverse impacts, and licenses of other approvals that may be required. Your comments must be submitted in writing and received before March 6, 1989. Responsible Official; Environmental Review Committee c/o Don Erickson, Zoning Administrator Planning Division Community Development Department 200 Mill Avenue South Renton, WA 98055 APPEAL: You may appeal this determination of significance in writing pursuant to RMC 4-3016 accompanied by a $75.00 appeal fee no later than 5: 00 p.m. February 27, 1989, to: Renton Hearing Examiner City Clerk 200 Mill Avenue South Renton, WA 98055 You should be prepared to make specific factual objections. Contact the above office to read or ask about the procedures for SEPA appeals. PUBLICATION DATE: February 13, 1989 DATE OF DECISION: February 8, 1989 SIGNATURE§: ;-:eV:--- :7--- ‘kl v Ken Nybgrg ---------_,� Lynn ut man Acts Co munity Develop ent Director Publi Works Director F LAW OFFICES . LANE POWELL MOSS & MILLER A PARTNERSHIP INCLUDING PROFESSIONAL CORPORATIONS RAYMOND W HAMAN.P.S. WAYNE W.HANSEN 3800 RAI N I ER BANK TOWER •SAMUEL D.ADAMS SUZANNE KELLY MICHAEL G.KEITH GRIM,P.S. ••JAMES B.STOETZER •ROBERT C.AUTH JOHN J.MITCHELL D.WAYNE GITTINGER RICHARD C.SIEFERT WARREN E.BABB,JR. SHERYL A.MOORE BARRY H.BIGGS LARRY S.GANGNES,P.S. SEATTLE,WASH I NGTON 98101-2647 RICHELLE GEROW BASSETTI •JOHN R.NEELEMAN RICHARD F.ALLEN.P.S. MICHAEL L.COHEN.P.S. MARK G.BEARD RICHARD A NIELSEN.JR. ROBERT W.THOMAS DAVID G.JOHANSEN STANTON P.BECK CHRISTIAN N.OLDHAM HARTLEY PAUL MICHAEL H.RUNYAN (206)223-7000 RANDALL P.BEIGHLE •DOUGLAS C.PERKINS DAVID C.LYCETTE DEBORAH D.WRIGHT WILLIAM L.BLACK III RALPH C.POND ROBERT J.FREDERICK.P.S. **DALE W.HOUSE MARK C.CARLSON JOHN E.D.POWELL JOHN R.TOMLINSON.P.S. ANNE McDONALD CABLE:EMBE PETER G.DAWSON D.MICHAEL REILLY FRANK W DRAPER H.PETER SORG,JR. GRANT S.DEGGINGER ELIZABETH A.RICHARDSON ROBERT L.ISRAEL,P.S. RUDY A.ENGLUND •LOUISE R.DRISCOLL •MARK RINDNER ROBERT R.DAVIS,JR. LEE A.THORSON PAMELA K.EDINGER CHERYLL RUSSELL EUGENE R.NIELSON DOUGLAS J.SHAEFFER TELEX:32-880E1 JANICE E.ELLIS-DICK RONALD D.SALSBURY DALE E.KREMER.P.S. ELLEN O.PFAFF KERI L.ELLISON MARK P.SCHEER CHARLES R.EKBERG.P.S. THOMAS F.GROHMAN DOUGLAS J.ENDE DAVID M.SCHOEGGL KENYON P.KELLOGG,P.S. D.JOSEPH HURSON TELECOPI ER:1206)223-7107 ELIZABETH FITZHUGH CLIFFORD D.SETHNESS MICHAEL D.DWYER SCOTT F.CAMPBELL KATHERINE COOPER FRANKLIN DOUGLAS E.SMITH MARK EDWIN JOHNSON CHRISTOPHER B.WELLS STEVEN V.GIBBONS STEPHEN C.SMITH ••JAMES L.ROBART,P.S. WILLIAM A.PELANDINI •ROBERT ROSS GILLANDERS DAVID C.SPELLMAN C.WILLIAM BAILEY,P.S. DENISE D.WIEST STUART D.HEATH CATHYA.SPICER EVAN O.THOMAS III REED P.SCHIFFERMAN DANIEL M.HENDRICKSON LAWRENCE W.STEVENS MICHAEL E.MORGAN KENNETH B.KAPLAN ••DAVID T.HUNTER PAUL D.SWANSON •KERMIT E.BARKER,JR. ••BREWSTER H.JAMIESON COLEEN D.THOMPSON JANINE D.JOHNSON THOMAS W.TOP •MARILYN J.KAMM KAREN VEDDER COUNSEL TO THE FIRM OF COUNSEL MICHAEL B.KING TIM D.WACKERBARTH JOYCE C.KLING ••JAMES P.WAGNER WILBUR J.LAWRENCE W.BYRON LANE JEFFREY D.LAVESON BRUCE P.WEILAND EUGENE H.KNAPP. GEORGE V.POWELL BRUCE W.LEAVERTON WM.BRADFORD WELLER JEFFREY D.GOLTZ PENDLETON MILLER JOSEPH E.LYNAM DOUGLAS E.WHEELER BRUCE SHORTS GAIL E.MAUTNER MARK A.WHEELER WILLIAM J.WALSH,JR. JOHN MCKAY BRUCE WINCHELL GORDON W.MOSS BARRY N.MESHER •MARY-ELLEN ZALEWSKI *ADMITTED IN ALASKA ...ADMITTEDD WASHINGTON ALLOTHERS ADMITTED nIN WASHINGTON February 13 , 1989 I Donald K. Erickson D FEB 1 4 1989 )I Zoning Administrator City of Renton n �p 200 Mill Ave. S. U Vi l5 Renton, WA 98055 Re: Public Records Request Our File No. 100 , 641 . 001 Dear Mr. Erickson: Pursuant to RCW 42. 17 . 260 we request on behalf of our client First City Developments Corp. access to the following public records : 1 . All correspondence, files and other records and documents relating to the 1981 Wetlands Study undertaken by the City of Renton, including its preparation, publication and distribution. 2 . All correspondence, files and other records and documents relating to the December 29, 1982 agreement between the City and Renton Property Associates and JAG-Renton Associates ( "RPA" and "JAG") , a copy of which is attached hereto, including the preparation and implementation of that agreement. 3 . All correspondence between the City and RPA and/or JAG. . 4 . All correspondence, files or other records and documents , from 1980 to the present, relating to the City ' s authority and ANCHORAGE,ALASKA BELLEVUE,WASHINGTON MOUNT VERNON,WASHINGTON OLYMPIA,WASHINGTON LONDON,ENGLAND Donald K. Erickson February 13 , 1989 Page Two exercise of its authority with regard to the property which is the subject of 1982 agreement between the City and RPA and/or JAG, including all documents which refer to First City Developments Corp. and/or First City Equities. 5 . All correspondence, files or other records and documents, from 1980 to the present, relating to the Department of Ecology ' s authority and exercise of its authority with regard to the property which is the subject of 1982 agreement between the City and RPA and/or JAG, including all documents which refer to First City Developments Corp. and/or First City Equities . If any of the above documents are contained in the files of other departments of the City of Renton, then this request is intended to encompass those documents as well . I will contact your office later this week regarding when we can inspect these documents and make selected copies. If you or your staff have any questions about this request before then, please contact me. Very truly yours , LANE POWELL MOSS & MILLER OUa�'1 Ga E. Mautner GEM:bh cc: Irene Leonard, First City Developments Corp. %09 ? CITY OF RENTON .iLL DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNING DIVISION • February 11, 1989 Mark Miller Vice President Development First City Developments Corporation Suite 4170 - 800 Fifth Avenue Seattle, WA 98104 • Re: Black River Corporate Park ECF-109-88 Dear Mr. Miller: Transmitted herewith is a copy of the Determination of Significance for the above referenced project. If you have any questions, please call me at 235-2550. Sincerely, (:1904 jit. _ Donald K. Erickson, AICP Zoning Administrator DKE:mjp (Party of Record List - Page 2) • 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 Mark Miller, First City Developments Corporation Black River Corporate Park February 11, 1989 Page 2 cc: Jeff Goltz Lane Powell Moss & Miller Evergreen Plaza Building 711 Capitol Way Olympia, WA 98501 Royce A.Berg LPN Architects 1127 Pine Street Seattle, WA 98101 Tim Kraus Offices of Richard Arambune 505 Madison Street, Suite 209 Seattle, WA 98104 Robert Sieh Edwards & Barbieri Attorneys At Law 6501 Columbia Center 701 Fifth Avenue Seattle, WA 98104 Mary M. Anderson 13618 SE 180th Renton, WA 98058 Muckleshoot Tribal Council 39015 172nd Avenue SE Auburn, WA 98002 •I `: CITY OF RENTON NAL DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNING DIVISION Pebruary 10, 198111 Washington State Department of Ecology Environmental Review Section Mail Slop PV-11 Olympia, WA 98504 Re: Environmental Determinations Transmitted herewith are copies of Environmental Determinations issued on February 8, 1989: DETERMINATION OF NON-SIGNIFICANCE-MITIGATED RENTON 91 APARTMENTS ECF; R; SA-106-88 Applicant seeks to: 1) annex a 4.286 acre parcel of property (under separate application); 2) rezone the parcel to a R-3, medium density multi-family residential designation; and 3) obtain site plan approval to develop the parcel with 88 multi-family units. The property is located in the 11000 block of S.E. 76th Street. The fifteen (15) day comment period for this project will end on February 28, 1989. Following the end of the comment period, the City will finalize it's Determination unless comments received require a reevaluation. Following the finalization of the Determination, there is a required 14 day appeal period. DETERMINATION OF SIGNIFICANCE )FIRST CITY DEVELOPMENTS CORPORATION ECF; SA; SM-109-88 Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. The property is located on the south side of the Burlington Northern Railroad; west of Thomas Avenue SW, extended; north of the P-1 Detention Pond; and east of Oakesdale Avenue S.W. Further information regarding this action is available in the Community Development Department, Municipal Building, Renton, Washington, 235-2550. Agencies, affected tribes and members of the public are invited to comment on the scope of the EIS. Comments must be submitted to the City of Renton by 5:00 p.m. on March 6, 1989. 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 f 1 Environmental Determinations February 11, 1989 • Page 2 • If you have questions, please call Jeanette Samek-McKague or me at 235-2550. zinc ely, v ouit Donald K. Erickson, A1CP • Zoning Administrator • DKE:mjp cc: Mr. Gerald W. Marbett, King County Bldg. & Land Division Mr. Gregory M. Bush, Metro Department of Wildlife Mr. Joe Robels, Department of Fisheries S COMMUNITY DEVELOPMENT DEPARTMENT ENVIRONMENTAL REVIEW COMMITTEE 's STAFF REPORT i February 8, 1989 • A. BACKGROUND: I. APPLICANT: First City Developments Corp. PROJECT: Black River Corporate Park ' ENVIRONMENTAL CHECKLIST: ECF-109-88 DESCRIPTION OF PROPOSAL: Applications for site approval and • shorelines substantial development permit to allow the construction of a , seven building office complex having • approximately 597,298 square feet of space on 42 acres of a 61 acre site. `, • LOCATION OF PROPOSAL: Property located north of the P-1 detention. pond, east of Seneca Avenue S.W. extended, south of the Burlington Northern Railroad tracks, and west of Oakesdale Avenue S.W. VICMTY MAP I.06 I i i ik..,-; — . — 1• • m /-1,- I -- I ., . ,,q, l'eil • I .....'''.-----<--------- ,/7-- ;.:1.:;:! . . .1 MAP _..T.• • i �I ,.l. , ..y5 F - i r~ ,I' :r.,..,,. . •.. •• lE h - BLACKRIVER CORPORATE PP-ARKS PAOJECT DAM Environmental Relifew Committee Staff Report Black River Corporate Park Page 2 February 8, 1989 B. ANALYSIS 1. BACKGROUND: The applicant, First City Developments Corporation, seeks site plan approval as well as approval of an application for a Shoreline Substantial Development Permit to allow the construction of a seven building office complex in the Blackriver Corporate Park. The applicant proposes a 597,298 square foot office development consisting of 3 three-story buildings, 1 four-story building, 2 five-story buildings, and • one three level parking structure for the three buildings (21, 22, and 23) located in the central third of the site. All buildings with the exception of Building 20 will have an exterior treatment of tinted glass and painted Dryvit panels. The exterior treatment of Building 20 includes the use of both reflective and tinted glass with tilt-up concrete panels. The reflective glass will be used to emphasize points of entry but will not be used within 600 fet of the Heron rookery. The site plan includes landscaped areas around the buildings, preserve significant trees exsisting on the site, create outdoor plazas with seating walls and bike • racks, and connecting pathways. Exercise stations and horseshoe courtyards will be incorporated near the jogging and foot paths proposed for the site. Finally, the applicant is providing approximatly 3.81 acres of the site adjacent to the greenbelt and preserve areas have been developed with swales and ponds providing a secondary waterfowl habitat and recharge area. This area averages approximately 50 feet in width. Near Building 20, the applicant proposes preserving the emergent wetlands known as E 02/3 and the E 2/3 located near the southeast corner of the building. The site has been cleared under past permits issued for activity on the site. a condition of the past permits included the preservation of significant trees on the site. The greenbelt and Riparian Preserve areas were not cleared. 2. ISSUES: Earth: The applicant proposes placing approximately 255,400 cubic yards of fill material on the site in order to raise the site above the flood plain elevation of 15 feet to an elevation of plus or minus 17 feet. The applicant is unable to determine a source of fill at this time and also unable to determine the haul routes. The applicant did note in the checklist that a "percentage of • Environmental• _ view Committee Staff Report is Black River Corporate Park • Page 3 February 8, 1989 the fill material has already been placed by the City of Renton through the excavation of the P-1 Channel and access at 'the west side of the site." The P-1 Channel was actually constructed by the • Soils Conservation Service, not the City of Renton. At that time, fill was placed on the western portion of the property and is estimated to cover approximately 2.4 acres including .2 of an acre within the shoreline area. • The fill aspect of the project raises concerns about erosion control, the source of fill materials, the truck hauling routes, and the impact on City streets as a result of the fill material. The quality of the fill materials placed on the site is extremely important since a portion of the site is a significant wildlife habitat area which includes one of the few Great Blue Heron rookies in the area and the P-1 Detention Pond provides both habitat for fish. Prior to the placement of any fill on the site the • applicant will need to contact the Public Works Department to ensure the fill meets the Department's specifications for clean fill. Finally, during the construction, several measures need to be incorporated including: 1) using erosion control ditches, silt fences, and sedimentation ponds; 2) limiting the hours of hauling during the fill operation to reduce traffic impacts in the area; 3) working with the Public Works Department and the Police Department on acceptable haul routes prior to any hauling of fill material; 4) providing a wheel-wash system which includes a paved roadway between the wash site and the access roadway; and 5) providing a renewable cash bond in the amount of $2000.00; and 6) watering down the site periodically to reduce dust. Water: The south side of the property is adjacent to the P-1 Detention Pond and a grass-lined drainage ditch located along the southeast corner of the property. In addition, portions of the property have been identified as associated wetlands of the Black River. The applicant proposes covering 75% of the 42 acre site with impervious surfaces. Portions of the project activity are located within 200 feet of the P-1 Channel, the P-1 Detention Pond and major wetlands (E02/3 and S4) identified on the site by the Department of Ecology staff. The applicant proposes filling in the designated wetland areas identified by D.O.E. The applicant has provided a system of shallow ponds and swales along the Riparian Forest systems • Environmental Review Committee Staff Report Black River Corporate Park Page 4 , February 8, 1989 to recharge the water table and provide biofiltration of storm water prior to flowing into the P-1 Detention Pond. •This biofiltration system is part of a proposed drainage system which catches the surface water a tightline system which passes the water through sedimentation/oil/water separators prior to releasing the stormwater into the biofiltration system. During the summer and fall of 1987, City staff met with representatives of the Department of Ecology to discuss specific boundaries of the shoreline under the identification of wetlands on the Black River Corporate property which •• falls under the State shoreline jurisdiction. The applicant had cleared and filled a major portion of the site without a obtaining a Shorelines permit although the applicant had an approved grade and fill permit. The State placed a stop work order on the property and conducted a field study in conjunction with the City to identify the boundaries of those portions of the property which are regulated by the State Shorelines Management Act, particularly those in the historical natural area as identified in the City's Shoreline Master Program. Following, the field investigation, a meeting was held to discuss these boundaries and a map (See Attachment 1) was presented identifying those areas needing to be preserved and/or restored on the site. As mentioned above, significant wetlands were identified on the site and under the development proposal will be filled, S4 and E 02/3 and E 2/3 as shown on Figure 3 in the City of Renton Wetland Study (See Attachment 2) . These wetlands were shown as vegetated wetlands. The S4 wetland is identified in the Canning and Williams wetland study as a scrub-shrub wetland with willow as the dominant type of vegetation. The E 02/3 wetland is identified as an emergent wetland smartweed and rush as the dominant types of vegetation. And the E 2/3 wetland is identified as an emergent wetland with reed canary grass and rush as the dominant types of vegetation. A major goal which has been pursued by the City is the preservation of the integrity and functions of the Black River Forest/wetland area and the site's groundwater and surface water hydrology while attempting to allow reasonable development on the site. These wetlands were identified in a meeting as possible mitigation for wetlands which have been destroyed on the property which would provide the minimum amount of acreage necessary to compensate for lost wetlands in the natural area. Any Environmental iew Committee Staff Report • Black River Corporate Park Page 5 February 8, 1989 Shorelines Substantial Development Permit required for development of the site would need to include mitigation • measures to ensure development of the site was sensitive to the wetlands. Several measures were proposed by the State in meetings and correspondence in 1987. These measures include:1) Establish a minimum setback of 50 feet from the wetland in which no buildings or impervious surfaces would be allowed. (It was suggested that uses such as shallow ponds, natural or ornamental vegetation, trails and other low intensity uses might be placed in this buffer area) ; 2) limit the movement into and through the wetland; and 3) replant the wetlands (E 02/3, S4, and E 2/3) with native vegetation of the same types and proportions as were identified in the City of Renton Wetland Study; 4) the creation of additional on-site diversity of wetland types to maximize habitat value; 5) create additional diversity through the careful design and planting of landscape buffers to include natural barriers, emergent wetland areas and diverse habitat/food species. In addition, measures were proposed by the State and in the underlying Final EIS issued in 1982 which address the issue of water quality. As stated above, the applicant's storm drainage system includes the use of vegetated swales to biofilter the storm water. Measures suggested by the state included: 1) avoid fill to the greatest extent feasible; 2) the use of pilings instead of structural fill for buildings and roads in existing wetlands; 3) encourage pervious paving for all at- grade parking areas and minimize the widths of roads; and 4) permit alterations of and impacts to the soils in areas proposed for buildings. The underlying EIS, identified the following measures: 1) provide adequate street and parking area cleaning and maintenance of the stormwater system; 2) include catch basins and screens in the stormwater system to collect litter and debris; 3) the use of temporary detention and settling ponds during construction; 4) the use of the oil/water separators; and 5) a stormwater system approved by the City. While the underlying EIS for the Black River Office Park noted wetlands on the site, no analysis was provided as to the value these wetlands could provide in terms of improving water quality of storm water runoff and the preservation of the wetlands other than those in the development plans at the time (13.39 acres of riparian forest) . On page 55 of the Draft EIS the following statement Environmental Review Committee Staff Report ✓ Black River Corporate Park Page 6 February 8, 1989 - - is made "However, the increase in surface water runoff due to the addition of impermeable surfaces, coupled with the removal of the majority of the riparian wetlands will result in a substantial alteration of existing drainage patterns throughout the site". Further, the Draft EIS made note of the fact that development in the area was affecting the water quality of the water bodies adjacent to the site and affecting ,the groundwater levels of the site. The applicant's checklist does not adequately address existing conditions of the surface and groundwater hydrology of the site as well as changes which will occur as a result of constructing the development. Nor does the information adequately address how the combination of swales and ponds proposed along the riparian forest compensates for the loss of the S4 wetland.. Flora• The applicant noted several types of vegetation on the site including deciduous trees, evergreen trees (fir) • shrubs, grass and wetrsoil plants. The applicant's checklist notes that "all small vegetation in the proposed project area will be removed except larger significant trees." The majority of the site is covered primarily with grasses and shrubs. The applicant did note in • the checklist that "large existing trees with weak form, severe storm damage, dying of old age with broken tops and decaying branches, or pose a safety hazard will be removed. " Several of the large trees have been preserved on the • • site as a result of previous environmental and land use approvals in the greenbelt and Riparian Preserve areas. The applicant proposes landscaping plan which incorporates the existing large trees, large deciduous shade trees, small deciduous flowering trees, conifer trees, deciduous and evergreen shrubs, ground cover and lawn on the 42 acre portion of the property. • The greenbelt and Riparian Preserve areas are not to included as part of the project. A portion of the landscaping plan includes plantings for the drainage swale system. The applicant's checklist discusses the preservation of large trees on the site with the removal of those which pose a potential hazard. The applicant's plans do not appear to identify those trees to be removed. A determination to remove the trees must be done with the concurrence of the City since the significant trees on the site are required to be preserved on the site as stated in the EIS and as required in the Environmenta] view Committee Staff Report Black River Corporate Park Page 7 February 8, 1989' fill and grade special permit (file SP- 024-86 approved for the site) and shown on grading plans. The applicant's checklist does not, however, address the impacts on the trees with the change in the surface or ground water hydrology of • the site. Fauna: The applicant's checklist notes several ' types of birds and animals which have been observed on the site including hawk, heron, eagle, shorebirds as well as salmon and trout. The checklist notes that ". . .an immature bald eagle was sighted soaring over an adjacent site in the spring o f 1987, but there is no known history of bald eagles' use of the site." The site does attract a variety of migrating birds. The checklist did not note any mammals or amphibians which were reported in the Black River EIS. The applicant's checklist proposes the following measures to mitigate impacts of the development including the construction phase of the project by: 1) planting of special native vegetation along the drainage swales proposed adjacent to the Riparian Preserve and Greenbelt Easement areas; 2) providing a • erosion control measures and proposing a drainage system to mitigate water quality impacts on the wildlife; 3) restricting the outdoor construction activity with 600 feet of the Heron Rookery to those months exclusive of March 1 to June 15, or when the Heron fledglings leave nests to reduce impacts to the heron during the nesting season; and 4) the amount of property set aside in the BlackRiver Technology Park (20 acres) and the Valley 405 Business Park (17 acres) . It should be noted that the last measure is not being provided by this project at this time. These areas were required in for flood control in previous land use • approvals on. the former properties known as the Black River Office Park and Earlington Office Park properties. The • applicant's application notes that there is a Heron rookery near the site and that these birds are monitored. The checklist, other than restricting the months of outdoor construction activity within 600 feet of the rookery, does not address the impacts of the construction phase or the eventual human activity in the proposed office buildings and in the outdoor areas near the Heron rookery. This is particularly important during the winter months. Further, the applicant has not provided information • regarding measures to keep restrict outdoor human activity during the Heron Environmental Review Committee Staff Report Black River Corporate Park Page 8 February 8, 1989 • i nesting .months. The applicant needs to • provide further information regarding the impact on this project on the site's wildlife. Light and Glare: • The applicant proposes to lighting the parking areas and the exterior of • buildings and control light dispersion • to prevent on-site and off-site glare. However, the applicant does not address any potential glare impacts from the • glass which will be used for the exterior of the buildings which might adversely impact the area's wildlife. Recreation: The project includes horseshoe courtyards, jogging and foot trails together with sequential exercise stations. The paths will be open to the public. The proposed office development is expected to provide employment for approximately 5,973 people. Consequently, the project will have a significant impact on recreation particularly in light of the fact that there are little or no recreation facilities in the area, expect Fort Dent and Longacres racetrack located within a mile of the project site. The amount and type of recreation amenities and • facilities are inadequate to serve the • employment population of the complex. The applicant needs to study the matter, with staff and consider the addition of amenities such as indoor exercise space; men and women's shower and locker facilities; pedestrian amenities in the plazas and open areas of the project site; and additional active outdoor facilities. Land and Shoreline Use: The City's Comprehensive Plan and the implementing zoning for the property designate the site as being suitable for office uses. The applicant's proposal for an office complex is in keeping with the zoning regulations for Office Park zoned property. The project complies with the minimum development standards in the office park zoning designation as well as the parking and loading ordinance. The project will be compatible with other existing and proposed land uses in the area which have office uses together with some research and development as well as manufacuring and warehousing uses. The underlying EIS was prepared for a proposal to rezone the property from G- 1, General Use to M-P, Manufacturing Park. The rezone was proposed with the intent of developing 35.58 acres of Environmental ziew Committee Staff Report • Black River Corporate Park Page 9 . February 8, 1989 property in office uses, and 12.09 acres in rail served warehousing with the remainder of the site developed with roads, open space and riparian forest. Neither the checklist nor the underlying EIS fully evaluates the impacts of the the amount of office development presently proposed particularly in light of the environmental sensitivity of the site. The applicant needs to provide further information on the impacts of the proposed complex layout on the site as well as alternative building configurations and amounts of surface parking to make the proposed complex and sensitive to the site itself as well as the nearby wildlife habitate areas. With respect to the shorelines use, the City's Shoreline Master program designates "the portion of the north bank of the Black River lying west of its confuence with Springbrook Creek" as Natural with the remainder of the site designated as Urban. The Shorelines program states that the only acceptable activities and uses in areas so designated are ". . .floodway drainage or storage. All other human activities including recreation are considered inappropriate. " The Master Program defines "Urban Environments" as areas ". . .of high-intensity land use including residential, commercial and industrial development. . .On certain shorelines planned for future urban expansion, there should be limitations based on the physical aspects of the site. " (p.22, Shorelines Master Program) . Development of the site has caused staff, to review the amount of the site which actually falls under the "Natural Environment" designation. It appears that at time, the staff interpreted the natural designation to only apply to the portion of land along the north bank within 200 feet of the ordinary high water mark. However staff, based on their recent review of the matter, believe that the natural designation may apply to a larger portion of the site than originally thought due to the inclusion of "associated wetlands" in the City's Shorelines Master Program. As a result, the office complex as proposed appears not to be compliance with the City's Shorelines Master Program. Further study of this matter is necessary to determine what revisions of the design of the complex might bring the project in compliance with the City's Shorelines Master program. Environmental Review Committee Staff Report Black River Corporate Park Page 10 • February 8, 1989 Traffic: The office complex is expected to generate approximately 12,543 daily vehicle trips. In past applications, r, traffic studies have been prepared for the Valley 405 Business Park for the • complex south of the site in 1985 and a �. traffic study for the Black River Corporate Park issued in June 1986. These traffic studies recommended noted that the Black River Corporate Park project will result in significant traffic impacts in the immediate area. Some of the improvements such as the development of Oakesdale Avenue S.W. have been completed. In addition, the applicant has worked with Metro to • establish a Transportation Management Plan for the Black River Corporate Park. The City has established the Grady Way Benefit District, which will require the applicant to provide the City with their fair share of the traffic improvement costs. RECOMMENDATIONS: Recommend that the Environmental Review • Committee issue a Determination of Significance for the project focusing on water, flora, fauna, light and glare, land and shoreline use, and recreation. . • . . •. • . , . " . . - .. . ... .. . . . . .. . . ., • AllIALAI-kv\- i '-.. ! ! :,• . • . . • • . . . . -J:,,, • ?•i-.. : . • ......::-:•-• -- --=_•--`2.--_--L--_..,_•*•::,„, • - ...y:•••-• -,-•••._••=..---:._=-_,--L--.--_ ,_- -- ,:-.:.:?, 7.:-....4 - 4 -,..i.:-. c's • iff.:-._-_'-Lf.-_,..---7______ --_.-.-•:-.. •• . .•. 4C)1''• ...) Z•-........irm.-------- ::::. .1•;:i••. . 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First City Dovolopmonta Corp, Blackriver Corporate Park I • r. .,. •••'.! 14,8, '* • — • Ront?n,Washington 1• 4 • 1 " . •-.. . . • ENVIRONMENTAL REVIEW COMMITTEE • 10:00 AM Renton Municipal Building February 8, 1989 3rd Floor Conference Room MINUTES ATTENDING: Ken Nyberg, Acting Community Development Director; Ron Nelson, Building Director; Larry Springer, Planning Manager; Lynn Guttman, Public Works Director; Don Erickson, Zoning Administrator; Glen Gordon, Fire Marshall; Jeannette Samek-McKague, Senior Planner; Lenora Blauman, Senior Planner; and Margaret Pullar, Secretary. CALL TO ORDER: The meeting was called to order by Mr. Nelson. ANNOUNCEMENT: Mr. Nyberg stated that, effective last Friday, the Mayor had asked him to serve as the Acting Community Development Director until a permanent Director is appointed. In that capacity, he asked the Managers of the Planning and Building Departments, Mr. Nelson and Mr. Springer, to act as the ERC members this morning giving them the voice and vote for matters to be considered today. Further, he stated that Ms Guttman and himself would be signing the appropriate documents authorizing any determinations made today. NEW PROJECT BLACK RIVER CORPORATE PARK FIRST CITY DEVELOPMENT CORPORATION ECF; SA; SM-I09-88 Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. The property is located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. Discussion: Mr. Erickson stated that he has had extensive conversations with Mark Miller of First City Development Corporation urging Mr. Miller to request a Determination of Significance at the outset so that the City can begin scoping the project because there is virtually no way that the City can utilize a 10 year old EIS document that was problematic for a rezone of the property to an office park zone. Mr. Miller has opted to let the City make that determination without a request from the developers. Mr. Erickson noted that he and a Department of Ecology representative, Terra Prodin, spent one hour at this site yesterday in order to determine appropriate designations and future decisions. He stated that DOE has apparently decided that they will not issue a shorelines permit for that portion of the property containing the Rivertech site and possibly the remaining portion of the Black River site as well. Mr. Springer, along with Mr. Erickson, explained the urban and associated wetland designation boundary history and located all present and proposed development sites for the benefit of Ms. Guttman. Discussion followed regarding previous mitigation measures, particularly, the developer's financial involvement in the traffic impact study. Decision: Mr. Springer made a motion, seconded by Mr. Nyberg, to concur with staff recommendations to issue a Determination of Significance with the scope focused on those elements noted in the staff report, adding the element of aesthetics, noting for the record that the City gave no clear messages to the developer during the past processes, that the application is programmatic and, therefore, the City's response needs to be very specific and, finally, the City's response must also include factual information of past history showing that the developer has not taken into consideration during their decision making process the information available from.the City . The motion passed unanimously. RENTON 91 APARTMENTS ECF; R; SA-106-88 Applicant seeks: 1) to annex (under separate application) a 4.286 acre parcel of property; 2) to rezone parcel to R-3 zone, and 3) to obtain a site approval to develop the parcel with 88 multi- • family units. The property is located in the 11000 block of S.E. 76th Street. • Discussion: Ms. Blauman located the site and reviewed the proposal. She noted that this • project is located outside the City and that the proponent is proposing annexation and project development simultaneously. She reported that the developer has submitted revised plans in order to comply with staff's concerns about density reduction, tree retention and open space, storm drainage, and traffic impacts. She advised that the traffic mitigation was approved by •Minutes - Environmental Revic ommitice February 8, 1989 Page 2 TAC this morning. She stated that staff recommendation is to issue a Determination of Non- Significance-Mitigated with conditions noted in the report and including the standard construction requirement conditions. She suggested that the construction bond be increased from $2,000 to $4,000 and stated, as a result of a suggestion at TAC this morning, that the developer be encouraged to make a financial contribution for off-site recreation improvements. Decision: Ms. Guttman made a motion, seconded by Mr. Nyberg, to issue a Determination of Non-Significance-Mitigated subject to conditions recommended in the report and including those outlined by Ms. Blauman. The motion passed unanimously. RECONSIDERATION CEDAR VILLAGE ECF; SA-I10-88 Applicant seeks site approval for a 25 unit apartment building on a 1.01 acre parcel. Proposed project is consistent with R-3 zoning for property. Site is vacant. The property is located approximately 500 feet south of N.E. Sunset Blvd. at the northwest corner of Anacortes Avenue • and N.E. 12th Street, if extended. Discussions Mr. Erickson reported that the proponent for Cedar Village has requested reconsideration for two mitigated conditions as follows: • 1. They have no objections to the easement requested on a voluntary basis for future improvements to NE 12th Street. However, they requested that the easement have a 6 year limitation. • 2. They requested that a letter of credit for $2,000 rather than the required $2,000 bond be approved due to the cost involved in obtaining a bond. Decision: Following a discussion of these two requests, it was unanimously agreed to advise the • proponent that a 10 year, rather than the proposed 6 year, limitation is acceptable for the • easement and that the letter of credit is acceptable subject to the approval by the city attorney. ' DISCUSSION • - There followed a discussion of the effectiveness of the current system for processing applications and changes that could be made to improve staff input and the whole process • development. MEETING ADJOURNED AT 11,30 AM • 1 RE )N COMMUNITY DEVELOPMENT L.L.L)ARTMENT ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: aw(v k c3 tart' DATE CIRCULATED: January 30, 1989 COMMENTS DUE: FebJruary 6, 1989 EFC-109-88 � •� 01\50 t° ' A � v G10 - qU.� i � ,�I q-�, APPLICATION NOS: SA-109-88, SM-109-88 on a; PROPONENT: First City Development Corporation W)FT,Ifjj,it• `(,pi/°, PROJECT TITLE: Black River Corporate Park ic CA . l BRIEF DESCRIPTION OF PROJECT: Application for site, plan approval to ,allo 41, construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. OCATIONI Located on the north side of the P-1 Detention Pond and south of t e ` iingt,on Northern Railroad tracks. ° d' - 0 CCK-1'f IOrO ( JU �, SITE AREA 6 . - -i - BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL�EL _ N MENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATIOS IMPACT IMPACT NECESSARY 1. Earth O . 0 _ , ° 0 2 . Air . ° " . O ° J 3 . Water ,)< 0 /X ° >so/ 4 . Plants . ° ° ° O 5. Animals . ° ° \X/ 6. Energy & Natural Resources a 7. Environmental Health O ° ° %'C 8 . Land & Shoreline Use 0 • Ks" ° •" "' 9 Housing . ° ,° ti . . 10. Aesthetics O 0 Q''- 11. Light & Glare 0 0 - . 12 . Recreation • . °• tr. __• ,;; ` • 13 . Historic & Cultural Preservation ° 0 , 14. Transportation ° . °><,./ . ° ° 15. Public Services ° ;.� 16. Utilities . �. ° 0 ti ` COMMENTS: - - -� � CD NUJOMill ti\YO 1-1-1-AT tk.' PDP\jf), Pr .-- l' s RELAI-60„ ,'. L' 15 PREPS-E0 Tc:.R , {, a We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are.. where additional information is needed to properly assess this proposal: -) -.......-_- —f- U/v\a,-- . - R.- Signature of Dir c r or Authorized Representative - Date �' Rev. 6/88 RED',. v COMMUNITY DEVELOPMENT DL RTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 - APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First .City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 59-7,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BG N nTVISION PL-ANNING-DIVISION YSHORT RANGE ' LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. - _-- REVIEWING DEPARTMENT/DIVISION: R_Aknoll, D!On/OI APPROVED APPROVED WITH CONDITIONS NOT APPROVED PL1e 2-3-89 x,u) eR.00, 0& •—R l ( JZ 6is \ 0R B2 6(4i c)R, PP4),6(D . o DATE SIGNATURE OF-DIRECTOR OR- AUTHORIZED-REPRESENTATIVE REV. 6/88 _ :NTON COMMUNITY DEVELOPMENT DEPARTMENT ENVIRONMENTAL CHECKLIST REVIEWS EEL, REVIEWING DEPARTMENT: LA4 41CS ,� %��LG DATE CIRCULATED: January 30, 1989 COMMENTS DUE: Fed a 6 4It4, EFC-109-88 ' i.SJ0.j' 4 APPLICATION NOS: SA-109-88, SM-109-88 /' PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. f LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington. Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth . . 0 . . 2 . Air . . - . . . 3 . Water . . . . . 4 . Plants . 0 . . 0 5. Animals . . . 0 0 6. Energy & Natural Resources ° . . . 0 . 7. Environmental Health 0 ° . . . . 8. Land & Shoreline Use 0 . . 9 . Housing . . . . . 10. Aesthetics . . . . . . 11. Light & Glare , . . . 0 . 12 . Recreation . . 0 . 0 13 . Historic & Cultural Preservation 0 . . 0 14. Transportation . . . . 15. Public Services ° . 16. Utilities :---7--: . COMMENTS: We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where additional information is needed to properly assess this proposal. Signature of Director or Authorized Representative Date Rev. 6/88 Ret. 2/6/ff Drr 2/2k9 f _ A __ATON COMMUNITY DEVELOPMENT DEPARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: Cc UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: Ont.iry ,Ai6iA E NG APPROVED APPROVED WITH CONDITIONS 4 NOT APPROVED UTILITY APPROVAL SUBJECT TO LATE COMERS AGREEMENT-WATER ' C ''// LATE COMERS AGREEMENT-SEVER )E sJx3 ID 05144. t`l d ie #8/,�'/. �i , SYSTEM DEVELOPMENT CHARGE-Y'JATER ,ES I S-aD/'.7 ,4¢�r s . as GacAi S✓i o +-41-/ SYSTEM DEVELOPMENT CHARGE-SEWER, y S it �� e� i r/ �/ �c�e a SPECIAL ASSESSMENT AREA CHARGE-WATER A,/p SPECIAL ASSESSMENT AI:F.11 CUAEIE-SEWER ,, , APPROVED WATER PLAN ygs LZ r Q t7 /Tl6sJTE /��P0�8G��lts ate //uR�G� ' APPROVED SEWER PUN ygs CZ�c217 ON X/'T /�'� G1/�17E� /t�6}lIV MI APPROVED FIRE HYDRANT LC :iri F/L G CGl a' �� S. BY FIRE )�`'T. Y�S -PiC�D PILL srttutTvn.Rs 1RifQui21-1 134C.tc-t= ow E IsE GEC'"�f I�",LVSAO Pit Ora cno.-. i F ? 3 siarz-, c . YS al ( 4. DATE 2/ /° 49 SIGNATURE OF ►IRECTOR OR AUTHORIZED REPRESENTATIVE REV. 6/88 REc ' 0 49 Dux. 2/. Ara RE1 N COMMUNITY DEVELOPMENT E IRTMEN °o e , 4/0 ENVIRONME NTAL CHECKLIST REVIEWS e iT O,c�t4/��fr v REVIEWING DEPARTMENT: p� . �a! /s5 �� �TO4y DATE CIRCULATED: January 30, 1989 COMMENTS DUE: February 6, 0 .9 EFC-109-88 APPLICATION NOS: SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth . ° ° 0 o ° ° 2 . Air ° 0 0 o ° ° 3 . Water 0 ° ° o ° 0 4. Plants ° ° ° o ° ° 5. Animals ° ° 0 o ° 0 6. Energy & Natural Resources ° ° ° o ° ° 7. Environmental Health 0 ° ° O 0 8. Land & Shoreline Use 0 ° 0 o ° O 9. Housing 0 / ° O ° ° 10. Aesthetics ° 0 ° o ° ° 11. Light & Glare ° ° ° o ° ° 12 . Recreation ° 0 0 o 0 0 13 . Historic & Cultural Preservation ° ° 0 ° 14 . Transportation ° ° ° o ° ° 15. Public Services ° ° 0 o ° ° 16. Utilities ° 0 ° COMMENTS: We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where add' al informatio 's needed to properly assess this proposal. Sign tti4 of Director or Authorized Representative Date Rev. 6/88 REN' f COMMUNITY DEVELOPMENT D]-_'RTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City. Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT ~ BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: L7), APPROVED APPROVED WITH CONDITIONS X NOT APPROVED -I—l�d� 7-1-4 ,S r� / c c_ lv �-�- 6 c U.I�,a�.0 G s. "IL e , DATE Z- f SIGNATU-,•^ 'F DIRECTOR OR AUTHORIZED REPRESENTATIVE REV. 6/88 ' - . - ' R1,141.OI1 CO1MMUNITY DEVELOPMENT u�,r'ARTMENTr� CITY OFfiEiuiGiV ENVIRONMENTAL CHECKLIST REVIEW EFTS 2 0 1989 --� REVIEWING DEPARTMENT: -Taft, CEAVEIJ DATE CIRCULATED: January 30, 1989 COMMENTS DUE: February 6, 1989 EFC-109-88 FEB 'c 0 1,,. APPLICATION NOS: SA-109-88, SM-109-88 UU 15 lW 6 U u - PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597, 298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-i Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) : 597, 298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth e . . . , 2 . Air . . . . . . 3 . Water . . . • 0 • 4 . plants • . • • • 5 . Animals • • . • • • 6. Energy & Natural Resources • e____/ • • • • • 7 . Environmental Health • Gj-' • • . • • 8 . Land & Shoreline Use • • �` • • • 9 . Housing . J • . • • • 10. Aesthetics • • 0 • 11. Light & Glare . • . • 12 . Recreation . . . . • 13 . Historic & Cultural Preservation • • . . 14 . Transportation . . . • . . 15. Public Services • . . • . . 16. Utilities . . . COMMENTS : See attachment. We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where additional information is needed to properly assess this proposal . gi 4I C/417 Signature of Director or Au .6rized Representative Dat / Rev. 6/88 a SA-109-88, SM-109-88 First City Development Corporation Black River Corporate Park 1. Naches Ave. SW should not be cul -de-saced. Naches should loop all the way back to Monster Road and be a dedicated public right-of-way. 2. Traffic Benefit Zone (SW Grady Way & Rainier corridor) bonding amount for benefit zone assessment $152.00 per trip generated. Trip rate per EIS - 21 vehicle trips/1,000 s.f. or 12,543 total trips $152.00 x 12,543 = $1,906,536.00 assessment amount See attachment for trip rate and assessment rate sources. 3. Approved street light drawings will be required. 4. Traffichwarrant analysis required for the following: a) SW 7th Street & Naches b) SW 7th Street & Powell Ave.' SW 1 Environmental Checklist - City of Renton Page 16 b. IS SITE CURRENTLY SERVED BY PUBLIC TRANSIT? IF NOT, WHAT IS THE APPROXIMATELY DISTANCE TO THE NEAREST TRANSIT STOP? No. Approximately 3/4 miles to public transit with new transit stops being considered by Metro as entire Park develops. c. HOW MANY PARKING SPACES WOULD THE COMPLETED PROJECT HAVE? HOW MANY WOULD THE PROJECT ELIMINATE? Plus or minus 2,747 stalls provided. None eliminated. d. WILL THE PROPOSAL REQUIRE ANY NEW ROADS OR STREETS, OR IMPROVEMENTS TO EXISTING ROADS OR STREETS, NOT INCLUDING DRIVEWAYS? IF SO, GENERALLY DESCRIBE (indicate whether public or private) . Naches, 7th and Oakesdale are all completed at this time with curbs, gutters and sidewalks. The extension of Naches will be a private road built to City standards and the existing road to the west will be paved as a trail and an emergency vehicle path. All roads were programmed to accommodate development of 996, 000 S.F. for this area, of which the proposal is substantially less. e. WILL THE PROJECT USE (OR OCCUR IN THE IMMEDIATE VICINITY OF) WATER, RAIL, OR AIR TRANSPORTATION? If so, generally describe. P No. f. HOW MANY VEHICULAR TRIPS PER DAY WOULD BE GENERATED BY THE COMPLETED PROJECT? IF KNOWN, INDICATE WHEN PEAK VOLUMES WOULD OCCUR. Daily Trip Rate: 21 vehicle trips/1000 s. f. 12 , 543 daily trips PM Peak Hour: 2 . 4 vehicle trips/1000 s. f. 1, 433 vehicle trips/PM peak hour I - ' . •, . . -...vl. • i . , a R " . 'AOd ' •_ .. - ." , - , • , , •"'„bi, n 4: •',.:.,',.-: '• „ ' * . ., n—0O2 'Cig:903_ - . , . - • , , -- - - . LiblibLilqsbMkelt[bos' lbolIOL11.1d 'Vre ,-,-le9 Veo . , .. .. . 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P. < .. -- _ _ _ • GRADY WAY TRANSPORTATION BENEFIT DISTRICT y: > - • EXECUTIVE SUMMARY REPORT Y FOR THE TRANSPORTATION COMMITTEE OF THE RENTON CITY COUNCIL -' Impact Fee Schedule Land Use Type Benefit Assessment Cost/Driveway Trip Industrial $185 Office .,.'"41 $152 General Retail $72 Convenience Retail $40 * The impact fee schedule charges developers a fee based on the type of development and the number of trips they _ Prepared by: . • City of Renton Traffic Engineering Staff Gary Norris, PE, Traffic Engineer • - - John Adamson, Program Development Coordinator - Mark Jacobs, Asst Traffic Planning Engineer .t. - • _ _ ... .- .. - :mot✓•r. • - RE: V COMMUNITY DEVELOPMENT I ARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS . : SA-109-88 , SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597, 298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS : COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989 . REVIEWING DEPARTMENT/DIVISION: Traffic Engineering APPROVED APPROVED WITH CONDITIONS % NOT APPROVED See attachment. r 4 DATE ,r/P2 SIGNATURE OF DIRECTOR T R OR 4UTHORIZED REPRESENTATIVE REV. 6/88 SA-109-88, SM-109-88 First City Development Corporation Black River Corporate Park 1. Naches Ave. SW should not be cul-de-saced. Naches should loop all the way back to Monster Road and be a dedicated public right-of-way. 2. Traffic Benefit Zone (SW Grady Way & Rainier corridor) bonding amount for benefit zone assessment $152.00 per trip generated. Trip rate per EIS - 21 vehicle trips/1,000 s.f. or 12,543 total trips $152.00 x 12,543 = $1,906,536.00 assessment amount See attachment for trip rate and assessment rate sources. 3. Approved street light drawings will be required. Sri) 4. Traffic warrantanalysis required for the following: a) SW 7th Street & Naches b) SW 7th Street & Powell Ave. SW 3 �t I .• Environmental Checklist - City of Renton Page 16 b. IS SITE CURRENTLY SERVED BY PIIBLIC TRANSIT? IF NOT, WHAT IS THE APPROXIMATELY DISTANCE TO THE NEAREST TRANSIT STOP? No. Approximately 3/4 miles to public transit with new transit stops being considered by Metro as entire Park develops. c. HOW MANY PARKING SPACES WOULD THE COMPLETED PROJECT HAVE? IHOW MANY WOULD THE PROJECT ELIMINATE? Plus or minus 2,747 stalls provided. None 3 eliminated. d. WILL THE PROPOSAL REQUIRE ANY NEW ROADS OR STREETS, OR IMPROVEMENTS TO EXISTING ROADS OR STREETS, NOT INCLUDING DRIVEWAYS? IF SO, GENERALLY DESCRIBE (indicate whether public or private) . Naches, 7th and Oakesdale are all completed at this time with curbs, gutters and sidewalks. The extension of Naches will be a private road built to City standards and the existing road to the west will be paved as a trail and an emergency vehicle path. All roads were programmed to accommodate development of 996, 000 S.F. for this area, of which the proposal is substantially less. e. WILL THE PROJECT USE (OR OCCUR IN THE IMMEDIATE VICINITY OF) WATER, RAIL, OR AIR TRANSPORTATION? If so, generally describe. No. f. HOW MANY VEHICULAR TRIPS PER DAY WOULD BE GENERATED BY THE COMPLETED PROJECT? IF KNOWN, INDICATE WHEN PEAK tiVOLUMES WOULD OCCUR. Daily Trip Rate: El 21 vehicle trips/1000 s. f. . * 12 , 543 daily trips PM Peak Hour: 2 .4 vehicle trips/1000 s. f. 1, 433 vehicle trips/PM peak hour �,l - . •-- - •,,--,•'',.;,, ..-.,,A,'3 ....,..:•;•••••• ," .,...-- "..:_-;‘,,..,.... ••,i•.;-..et.,."..•••'''i.-",,...:::",-.,:.:-..: - . . • • : •• ••• ••••'• '15 ''''••"'•'''....".•' ''.... "•• •'..'SE.'.•."'ir.:.... 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'•••••V ••'" '; ••..‹.•••' ..!'••••: •• tkot. -- •••'?•-1,tt• ••'•- ...!,•.W1,1-7,_' t -AV?X • ••• At,'it:_ : zN.• -t-4-,• •,,,,,,,, . ,,,,f • ,•"-- , .. ... . „.„...4.* . , .,:•:.,.• • • • December 12, 1988. - _ - - •_ .- v •- •r, ram. 1 GRADY WAY TRANSPORTATION BENEFIT DISTRICT .. - .EXECUTIVE SUMMARY REPORT„ ' _ _•. . _ FOR THE TRANSPORTATION COMMITTEE OF THE RENTON CITY COUNCIL Impact Fee Schedule Land Use Type Benefit Assessment Cost/Driveway Trip Industrial $185 `Office- 152""9 • General-Retail $72 _ Convenience Retail $40 * The impact fee schedule charges developers a fee based on the type of development and the number of trips they_ __Prepared Prepared by: City of Renton Traffic Engineering Staff Gary Norris, -PE, Traffic Engineer • -- John Adamson, Program Development Coordinator _ Mark Jacobs, Asst Traffic Planning Engineer _ _— _ - • ; .. .ON COMMUNITY DEVELOPMEN'.L' PARTMEN / ' IN Fee ENVIRONMENTAL CHECKLIST REVIEW SHEET 6 REVIEWING DEPARTMENT: 1989 DATE CIRCULATED: January 30, 1989 COMMENTS DUE: February 6, 1989 PLANNING DIVISION EFC-109-88 w CITY OF RENTON APPLICATION NOS: SA-109-88, SM-109-88 D JAN 3 1 1989 [) PROPONENT: First City Development Corporate E CI 0 V LS PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of anI`office complex having 597,298 square feet. The complex will consist of seen buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/142 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth ° . . . . . 2 . Air i ° . . o ° . 3 . Water ° . . o ° . 4 . Plants 1 ° . ' . 5. Animals ° . 14 . . ° O 6. Energy & Natural Resources 0 . 0 f . 0 0 7. Environmental Health . ° ° . 0 - 0 8. Land & Shoreline Use ° ° X ° . ° . 9. Housing tf ° . . . ° . 10. Aesthetics ° . x . 11. Light & Glare ° ° ✓ . 12 . Recreation ° . x . . ° . 13 . Historic & Cultural Preservation . . ° ° 14 . Transportation 1 ° ° ° . ° . 15. Public Services . 0 . 1 0 . . 16. Utilities 1 ° . . COMMENTS: D ;� 3 � c e_d., ..L, Cio A .,� . We have reviewed this application with particular attention to those areas which we have expertilse and have identified areas of probable impact or are where addition information is needed to properly assess this proposal. r Signature 7 f Director or Authorized Representative Date 3_ 81 Rev. 6/88 d MON COMMUNITY DEVELOPMENT'PARTMENT DEVELOPMENT APPLICATION REVIEW SHEET PLANNING L)iViSiON ECF-109-88 CITY OF RENTON APPLICATION NOS. : SA-109-88, SM-109-88 . 'JAN 3 1 1989 114 PROPONENT: First City Development Corpo in E p v E PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: • PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION ` SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE XLONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: ) COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS // NOT APPROVED u DATE - 3-g5 SIGNATURE DIRECTOR OR AUTHORIZED REPRESENTATIVE REV. 6/88 1 I! • A. \ jTON COMMUNITY DEVELOPMENT _3PARTMENT ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: Iiht��/11 DATE CIRCULATED: January 30, 1989 COMMENTS DUE: February 6, 1989 EFC-109-88 j APPLICATION NOS: SA-109-88, SM-109-88 ! PROPONENT: First City Development Corporation 0 PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an Office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth !j • x ° ° 1 , a ° 2 . Air ° . 3 . Water I . ° 0 Ax ° • . 4 . Plants . ° . . 5. Animals p g ° o ° 6. Energy & Natural Resources . . . • ° 7. Environmental Health . • • . . . 8 . Land & Shoreline Use . • . . • . 9 . Housing ° ° ° . • . 10. Aesthetics 0 . II 0 . . 11. Light & Glare ; • . • . ° . 12 . Recreation • 0 ° 0 . . 13 . Historic & Cultural Preservation ° ° 0 y , . 0 14. Transportation li . x . . . • . 15. Public Services . ' . ,.._ • ° . 16. Utilities • x . COMMENTS: Dr'a l oie, /01 4.) re7u/veid We have reviewed this' application with particular attention to those areas which we have expertiise and have identified areas of probable impact or are where addition 1 information is needed to properly assess this p oposal. ot� o Signature of Director' or Authorized Representat ve Date �/ Rev. 6/88 P CON COMMUNITY DEVELOPMENT ,.JPARTMENT , DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: • PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED NOT APPROVED WITH CONDITIONS // �C �Q''rz € et-747 i As /'y it/re,d d?" Sr Z p/ /gyres/4V tier veed 744.- .:.PPfrizif ae-- css I'd dlReet • /ig'rh_ Cic ee ss S /0a d eot � ` ,ed. , e.-sri?� 3, /IcL Tea /dos Sirrrgv F 7' G<r�OF � t lyAc/ REv/Et*/rlAteorl,¢G 117 DATE 3 SIGNATURE OF DI ECTOR OR AUTHORIZED REPRESENTATIVE REV. 6/88 RL. ON COMMUNITY DEVELOPMENT ...�LARTMENT ENVIRONMENTAL CHECKLIST REVIEW SHEET REVIEWING DEPARTMENT: paarks av,ct (Pc c meA,n. DATE CIRCULATED: January 30, 1989 COMMENTS DUE: Febru, y, 6, 1989 EFC-109-88 471,N/Nl7 I, APPLICATION NOS: SA-109-88, SM-109-88 Pea e 0 8198 9 PROPONENT: First City Development Corporation i D PROJECT TITLE: Black River Corporate Park L BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth ° ° ° o ° 0 2 . Air ° ° - ° o ° ° 3 . Water ° ° 0 O 0 0 4 . Plants 0 0 0 O 0 0 5. Animals ° 0 0 o 0 0 6. Energy & Natural Resources ° ° ° o ° ° 7. Environmental Health ° ° ° o ° ° 8. Land & Shoreline Use ° ° ° o ° ° 9. Housing ° ° ° o ° ° 10. Aesthetics ° ° o ° 0 11. Light & Glare ° ° ° ° ° 12 . Recreation 0 ° x ° ° • ° 13 . Historic & Cultural Preservation ° o ° 14. Transportation ° ° ° o ° 15. Public Services 0 0 0 O 0 0 16. Utilities ° ° ° COMMENTS: SEE ATTACHED We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where additiona information is needed to properly assess this proposal. ` a4/f? Signa . e of Director or Austhorized Representative Date Rev. 6/88 BLACK RIVER CORPORATE PARK SA-109-88, SM-109-88 The development of seven office buildings will have a major impact on recreation. There are no parks or developed open spaces in the immediate vicinity. Active and passive recreation opportunities need to be provided. The applicant has taken significant steps to provide those opportunities through the inclusion of jogging paths, exercise stations, horseshoe courts and plazas. In general, the following issues need to be addressed. Indoor exercise space, locker and shower facilities, pedestrian amenities in the plazas and additional active outdoor facilities. The best location for the major east/west trail corridor is between Naches and the railroad right-of-way. A joint arrangement for the development of that trail should be reached between the City and the developer. RE.JN COMMUNITY DEVELOPMENT V±PARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: i4q „/ Recs-eee.74'00\.. APPROVED ,)( APPROVED WITH CONDITIONS NOT APPROVED SEE ATTACHED DATE 2.14/GP? SIGNATU OF DIRECTOR OR AUTHORIZED REPRESENTATIVE REV. 6/88 BLACK RIVER CORPORATE PARK SA-109-88, SM-109-88 The Parks Department suggests the following conditions: 1. The applicant should develop indoor recreation facilities in a minimum of three of the buildings with the idea that employees working at other buildings in the complex would have the opportunity to share in the use of those facilities. 2. Shower and locker facilities should be provided for those employees who choose active recreation activities during the workday. 3. Pedestrian amenities in the plaza areas and along the trail are needed such as tables and benches. 4. The complex needs at least one sports court which should include basketball hoops. 5. The developer and City Parks staff should work together to form a partnership for the development of the Black River Trail between Naches and the railroad right-of-way. RE...L JN COMMUNITY DEVELOPMENT 1J IL ARTMENT ENVIRONMENTAL CHECKLIST REVIEW SHEET , REVIEWING DEPARTMENT: y�(1 , 1'.q/,,,. 6 0) DATE CIRCULATED: January 30, 1989 COMMENTS DUE: F a vrey 6, 19'89 EFC-109-88 V VA .4 .40 APPLICATION NOS: SA-109-88, SM-109-88 PROPONENT: First City Development Corporation e v PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth ° . . ° . . 2 . Air ° . . . . . 3 . Water ° . ° • 0 4. Plants . • . . —. 5. Animals ° 0 0 ° • 0 2 6. Energy & Natural Resources . ° . . • 7. Environmental Health ° ° 0 • 0 8. Land & Shoreline Use 0 ° . ° ° 0 9. Housing 0 . . ° • . 10. Aesthetics ° . . ° • 0 11. Light & Glare ° ° . . 12 . Recreation ° ° 0 . . 13 . Historic & Cultural Preservation ° ° . . 14. Transportation ° ° . . 15. \ Public Services ° 4/ ° . 16. Utilities ° ° . COMMENTS: We have reviewed this application with particular attention to those areas which we have expertise have identified areas of probable impact or are where tiona ' . form , 'an-is needed to properly assess this proposal. 37 re, of Di ector or Authorized Representative Date Rev. 6/88 • RE N COMMUNITY DEVELOPMENT L-..ARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5:00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED ao-oi- 110.44-e.e( 11")-.) DATE E DI R OR AUTHORIZED REPRESENTATIVE REV. 6/88 RL_,a ON COMMUNITY DEVELOPMENT LL?ARTMEN F ,, L.. • iv ENVIRONMENTAL CHECKLIST REVIEWS ` 3'ea `/V REVIEWING DEPARTMENT: oRm kAA1 1-cr- �y A 9 8 449 / , � /S' ra DATE CIRCULATED: January 30, 1989 COMMENTS DUE: Febriu�;:r ,41-E1-9� 14 EFC-109-88 R EC r vED APPLICATION NOS: SA-109-88, SM-109-88 FEB ? 1989 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth ° ° ° o 0 0 2 . Air ° . - ° o ° - ° 3 . Water ° ° ° ° • 0 4. Plants 0 0 0 o ° 0 5. Animals 0 0 ° o 0 0 6. Energy & Natural Resources • ° ° o ° ° 7. Environmental Health ° ° ° O 0 0 8. Land & Shoreline Use ° ° 0 • 0 0 9. Housing ° ° ° ° • ° 10. Aesthetics ° ° ° o o ° 11. Light & Glare ° ° ° o ° ° 12. Recreation ° 0 ° 0 ° 0 13 . Historic & Cultural Preservation 0 ° ° 0 14 . Transportation ° ° ° . ° 15. Public Services ° ° ° O 0 0 16. Utilities ° 0 ° COMMENTS: SSG X+ 0'e�1" We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where additional information is needed to properly assess this proposal. -- ---e5-4\72 te ��r� Signature of Director or Aut rized Representative Da Rev. 6/88 RE • ►N COMMUNITY DEVELOPMENT L_.AARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad"tracks. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE PARKS AND RECREATION DEPARTMENT x OTHERS: W0. • COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: APPROVED APPROVED WITH CONDITIONS NOT APPROVED 4 Gi rD✓Cr/ wi "/". r � r-d5 ,1-d S, ,ram Conc94 ii pDATE /� REPRESENTATIVE SIGNATURE OF DIRECTOR OR THORIZED REP ��+ REV. 6/88 R] ON COMMUNITY DEVELOPMENT i„.2ARTMENT ENVIRONMENTAL CHECKLIST REVIEW SH REVIEWING DEPARTMENT: e. n1A ;mention Bureau DATE CIRCULATED: January 30, 1989 COMME 5D0i:February 6, 1989 EFC-109-88 3 - 1b° APPLICATION NOS: SA-109-88, SM-109-88 A '1. 1.9 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT: Application for site plan approval to allow t construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. SITE AREA 62 acre/ 42 acres BUILDING AREA (gross) :597,298 IMPACT REVIEW ON ENVIRONMENTAL ELEMENTS PROBABLE PROBABLE MORE MINOR MAJOR INFORMATION IMPACT IMPACT NECESSARY 1. Earth ° ° • o ° ° 2 . Air ° ° ° ° 3 . Water ° ° ° 4 . Plants ° ° ° ° 0 5. Animals 0 ° o ° 0 6. Energy & Natural Resources ° o ° ° 7. Environmental Health ° ° ° ° 8 . Land & Shoreline Use ° 0 o ° ° 9. Housing ° ° ° ° 10. Aesthetics 0 ° ° 11. Light & Glare ° ° ° 12 . Recreation ° ° ° o ° ° 13 . Historic & Cultural Preservation ° 0 ° o 0 0 14. Transportation ° 0 ° o ° ° 15. Public Services ° l/ ° 0 o ° ° 16. Utilities ° 0 ° COMMENTS: Adit/L1 defrow&re-e--*G" a-c-ez."2-tv 7,____.,64...;z2zetrE64„ ,,,rxe...44_,, Azy. /.64, We have reviewed this application with particular attention to those areas which we have expertise and have identified areas of probable impact or are where additional information is needed to properly assess this proposal. A-i-i-oeZz _ Signature of Director or Authorized Representative Date Rev. 6/88 • . RE,,,_,k=)N COMMUNITY DEVELOPMENT '.4a ARTMENT DEVELOPMENT APPLICATION REVIEW SHEET ECF-109-88 APPLICATION NOS. : SA-109-88, SM-109-88 PROPONENT: First City Development Corporation PROJECT TITLE: Black River Corporate Park BRIEF DESCRIPTION OF PROJECT.: Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four- story building, 2 five-story buildings, and 1 three level parking structure. " LOCATION: Located on the north side of the P-1 Detention Pond and south of the Burlington Northern Railroad tracks. TO: • PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC' ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU POLICE DEPARTMENT COMMUNITY DEVELOPMENT DEPARTMENT BUILDING DIVISION PLANNING DIVISION SHORT RANGE LONG RANGE • PARKS AND RECREATION DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE PLANNING DIVISION OF THE COMMUNITY DEVELOPMENT DEPARTMENT BY 5: 00 P.M. ON FEBRUARY 6, 1989. REVIEWING DEPARTMENT/DIVISION: APPROVED ✓ APPROVED WITH CONDITIONS NOT APPROVED Any development and/or construction shall comply with rt.""" • Suiiri~' Codes and Ordi-, nances. A second means,of approved access is required. Fire C-.. :_.., . . � . , . roads/la; .p hall be paved ' minimum width 20'; minimum height 13' 6". Yes Preliminary fire flow calculations show a fire flow of is required, hydrants with a ;.� iif pen each it. requital. _ �. .. . Primary hydrant is required to be within .�., _ ,._-�,... 'wit of a truct1-''r' S.•cotu,le y hydrants eta required to be within • . ;ct.tra ,..w. . m. �,�.._.., u.. -»......, ..... 1deF • • Aaa:proved aut rn,,,tic s�r'-kler system is required to protect total � •,►•,,. ,� £ { _ paved and t::;:.: are to be Instal � •� ��•. t:r to ; `' �►�••� "` �� be installed and approved.iI v �.J 4 4ii L �.+. iY.,... pproved coy:_ . ....... .. , DATE SIGNATURE OF DIRECTOR OR AUTHORIZED REPRESENTATIVE " REV. 6/88 • • Any development and/or construction shall comply with current Fire and Building Codes and Ordi- nances. A second means of approved access is required. FireJpartment access roads/lanes shall be paved minimum width 20'; minimum height 13' 6". Yes No Preliminary fire flow calculations show a fire flow of /7,50 is required. hydrants with a minimum flow of / gpm each is required. Primary hydrant is required to be within /6 D feet of the structure. Secondary hydrants are required to be within _300' feet of the structure. An approved automatic sprinkler system is required to protect the total structure. Yes ` .-No— All fire department access roads are to be paved and installed prior to construction. Yes .!:, No_ All fire hydrants are required to be installed and approved prior to construction. Yes No f c Q �,`' ✓ -ate �tice a� cry REQU I RCI) FIRE FLOW CALCULATIONS 1. HAZARD IDENTIFICATION INFORMATION NAME ,d;wX ,7>aed.P (_, 02,aew%e f- .7.eA U.B.C. CLASS OF BUILD ADDRESS 44 L #S ', AC la /km ,S:G61 FIRE MGMT AREA 2. OETERM OF CONSTIC - CLASS (CIRCLE ONE): I CIL:441E ' tV )' III V FIRE-RNON'=COMBUSTIBLE ORDINARY WOOD FRAME MIXED (NOTE: IF "MIXED' , SEE SPECIAL INSTRUCTION FOR AREA AND BASIC FIRE FLOW) 3. DETERMINE AREA: pd r �� GROUND FLOOR AREA: FT2 (A �. NUMBER OF STORIES: TOTAL BUILDING AREA: /D.S go-6' 4. DETERMINE BASIC FIRE FLOW FROM TABLE #1, USING AREA (A): .3S00 GPM (B 5. DETERMINE OCCUPANCY FACTOR ADJUSTMENT: ADJUSTMENT: ' — 2 i5 GPM (C. IF LOW HAZARD, SUBTRACT UP TO 25% OF (B): IF HIGH HAZARD, ADD UP TO 25% OF (B) 6. COMPUTE SUB-TOTAL (B+C): (IF B+C IS LESS THAN 500 GPM, INSERT 500 GPM) , L-atir GPM (D: 7. DETERMINE SPRINKLER ADJUSTMENT: ADJUSTMENT: — /9 ?..S GPM (E: (IF COMPLETELY SPRINKLERED, SUBTRACT UP TO 50% OF (D): IF LIGHT HAZARD OCCUPANCY AND FIRE RESISTIVE OR NON-COMBUSTIBLE CONSTRUCTION, SUBTRACT UP TO 75% OF (D). 8. DETERMINE EXPOSURE ADJUSTMENT: USING THE TABLE AT LEFT AS A GUIDE, ENTER THE SEPARATION AND ADJUSTMENT FOR EACH OF THE "FOUR FACES" OF THE BUILDING IN THE TABLE AT THE RIGHT: SEPARATION MAX. ADJUSTMENT EXPOSURE SEPARATION ACT. ADJ. 0 - 10 25% MAX. NORTH 4 0' ADD /5 % 11 - 30 20% MAX. EAST 7.S' ADD /D % 31 - 60 15% MAX. SOUTH • /o o' ADD /D % 61 -100 10%MAX. WEST /S-o, ADD —9 - % 101 -150 5% MAX. TOTAL % OF ADJUSTMENT 150 OR 4-HR WALL 0% MAX. (NOT TO EXCEED 75%) : ,� (TOTAL % ADJUSTMENT TIMES (D) ADJUSTMENT: '1 9/ , '75 GPM (F) 9. DETERMINE ROOF AND SIDING COVERING ADJUSTMENT: (IF SHINGLE COVERING, ADD 500 GPM) ADJUSTMENT: ` ) GPM (G) 10. COMPUTE ESTIMATED FIRE FLOW REQUIRED: (IF D+E+F+G IS LESS THAN 500 GPM, INSERT 500 GPM) CIF D+E+F+G IS GREATER THAN 12,000 GPM, INSERT 12,CO:� GPM) /��� Z-? (D+E+F+G) REQUIRED FIRE FLOW: /75C) GPM (H) 11. SIGNED: A LATE ✓,, /717 ,, of RED i ' a , __ y', .a NoTicE }; . . t.Q. ,, . ,,,y f0 SEP1 1.4 OF PENDING . . . :,.. ,. SITE PLAN APPLICATION I ,,, ,• : • • 0 , . . ' ,;: r DESCRIPTION • FIRST CITY DEVELOPMENTS CORPORATION _ E r;.'?,4 ECF; SA; SM-109-88 ;tl, .4 Application for site plan approval to allow the construction 1 •;1 of an office complex having 597,298 square feet. The ', .;� complex will consist of seven buildings: 3 three-story "' % '•��, buildings, 1 four-story building, 1 five-story building, and ,;.. 1 three level parking structure. ,sj1 ri:rtim • • ii GENERAL LOCATION AND/OR ADDRESS: • 0 Property located on the south side of the Burlington �' ' „ '. Northern Railroad; east of Seneca Avenue S.W., extended; "sh north of the P-1 Detention Pond; and west of Oakesdale `'" • Avenue S.W. -0 PUBLIC APPROVALS REQUIRED : - )r , • , SVi ..`•= ' -4' I` o Environmental Review , F`s o Site Plan Approval • o Shorelines Substantial Development Permit `,' PUBLIC Building WILL' ,;: 'a' BE RECEIVED BY THE BUILDING & ZONING DEPARTMENT',,.> .ANYTIME PRIOR TO PUBLIC HEARINGS. _ ' ' AND DURING PUBLIC HEARINGS. ' FOR FURTHER INFORMATION CALL THE CITY OF RENTON .,;• '`, BUILDING & ZONING DEPARTMENT 235-2550 THIS NOTICE NOT TO BE REMOVED WITHOUT PROPER AUTHORIZATION CERTIFICATION I , 4J T,, L,Iti.Q , HEREBY CERTIFY THAT lit- e6 ( 3) COPIES OF THE ABOVE DOCUMENT WERE POSTED BY ME IN 11-lat- (3 ) CONSPICUOUS PLACES ON OR NEARBY THE DESCRIBED PROPERTY ON __,3 MA pi 8 ) lq ATTEST: Subscribed and sworn to before me, a Notary Public, in and for the State of Washington • - residing in }�(J1r,it-mi.-0 , on that clA SIGNED ' day of c .z.A 1.1 1 ` W1 tel l ,-.13-e---C,COL.„. OFR4, 11/ 1/ O "LL 0,9gT�O SEPSE�O�P OF PENDING • D I.E CRIPTI • ® ti • FIRST CITY DEVELOPMENTS CORPORATION ECF; SA; SM-109-88 • Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 1 five-story building, and 1 three level parking structure. GENERAL LOCATION AND/OR ADDRESS: Property located on the south side of the Burlington Northern Railroad; east of Seneca Avenue S.W. , extended; north of the P-1 Detention Pond; and west of Oakesdale • • Avenue S.W. PUBLIC APPROVALS. REQUIRED : • • • o Environmental Review o Site Plan Approval o Shorelines Substantial Development Permit PUBLIC CuOi AENTS WILL BE RECEIVED BY THE BUILDING & ZONING DEPARTMENT .ANYTIME PRIOR TO PUBLIC HEARINGS AND DURING PUBLIC HEARINGS. FOR FURTHER INFORMATION CALL THE CITY OF RENTON BUILDING & ZONING DEPARTMENT 235-2550 THIS NOTICE NOT TO BE REMOVED WITHOUT PROPER AUTHORIZATION \_ ,.. . NOTICE OF PENDING SITE PLAN APPROVAL RENTON, WASHINGTON A Site Plan Application has been filed and accepted with the Planning Division of the Community Development Department. The following briefly describes the application and the necessary Public Approvals. DESCRIPTION: FIRST CITY DEVELOPMENTS CORPORATION ECF; SA; SM-109-88 Application for site plan approval to allow the construction of an office complex having 597,298 square feet. The complex will consist of seven buildings: 3 three-story buildings, 1 four-story building, 2 five-story buildings, and 1 three level parking structure. GENERAL LOCATION: • Property located on the south side of the Burlington Northern Railroad; east of Seneca. :,: . Avenue SW, extended; north of the P-1 Detention Pond; and west of Oakesdale Avenue S.W. PUBLIC APPROVALS: o Environmental Review o Site Plan Approval o Shorelines Substantial Development Permit o Building Permit The application can be reviewed at the Planning Division located on the third floor of Renton City Hall. Comments will be accepted anytime prior to Public Hearings, during Public Hearings, or prior to an administrative site plan approval. For further - -- ---information-on the application or dates of final action by the City, -please contact the �.. Planning Division at 235-2550. — SEA . . la MILE `",L ao� �F �• y�. . TO BELLEVUE : „ik ie., .l- SITE �2MILFs ��I - ,1000 ,r . (�� QUARRY rJI FAMILY ' lel jof wAI ,.ouse •RENTON ru AMWPc •r 1 • • •' c� .e&e,� ii, _ '. SW 7TH.. • e BLACK WASApr: ,: , GOEZP'ORATE ��rn . PARK. mil Tim' 40s ,• ,,iiefiNI 1.4 , TA b .., ,, , , E , SEA-TA 'n AIRPORT ;"` 4 MILES ch.a......L' i . LONGACRES>► .•4, ' 0 ' SOUTHCENTER •-• • P -_ o . VALLEY `; T 1... GENERAL . •- �f. .'( .. 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't.'.'.',,.:,17:'.'''.::::,',F,".•••:-•-;;;.‘.'''.7,••••,-,"",,,r,',7,04.3,, ,,..,:',`,,,;,(5',41,:!'',,t titti,,,,,,,:r,r,r,:r.,,,,,.,,,,,er,c1,,,,,.,,,;:Iip.,,,,,,,-,..,,isT,H,,,r,...,,,!...;.,5.,,.?:,„,:,..;:ptiZ.J.57-1.v; i',,,"7-3,,,Y.,,,,f•:.-,1,.,,,,,,,,,,,°,,:,1,..,,s,,, , ,51104..!,4,;,,,,,.._.../..11,...ct,„.,,,V.).1.,,,,,.,,,,A.,,,F,.Ir'i'i•,,,,A,,T.,,,,,,•!),9,z. :...... . • / • , , - - . • , Suite 4170-800 Fifth Av Seattle,Washington, 98104 - • flixstety DEVELOPMENTS CORP. PLANNING DIVISTY ION OFRENTON January 19, 19:0 JAN 2 0 1989 E c E i V E Mr. Donald K. Erickson Zoning Administrator CITY OF RENTON , 200 Mill Avenue South Renton, Washington 98055 RE: SITE PLAN APPROVAL AND SUBSTANTIAL SHORELINE DEVELOPMENT APPLICATION FOR APPROXIMATELY 597,298 SQUARE FEET OF OFFICE IN SEVEN BUILDINGS ON APPROXIMATELY 42 ACRE SITE Dear Don: I am responding to your letter of November 21, 1988 in which you were seeking confirmation from First City Developments Corp. that we wanted to proceed with our current application. This letter is to confirm our proposal as previously submitted is our official application for this site. Please proceed with an Environmental Determination on the project at this time. Should you need any further clarification as to our position on this application please do not hesitate to call. Yours truly, FIRST CITY DEVELOPMENTS COPP. Mark Miller Vice President Development MM:az cc: Jeff Goltz Royce Berg LAW OFFICES dam; LANE POWELL MOSS & MILLER A PARTNERSHIP INCLUDING PROFESSIONAL CORPORATIONS EVERGREEN PLAZA BUILDING 711 CAPITOL WAY OLYMPIA,WASHINGTON 98501 12061 754-6001 JEFFREY D. GOLTZ November 28, 1988 PLANNING DIVISION CITY OF RENTON Mr. Donald K. Erickson Zoning Administrator D NOV 21, 1988 City of Renton 200 Mill Avenue South _ ECINVIE Renton, Washington 98055 Re: Public Records Request Dear Mr. Erickson: Pursuant to chapter 42.17 RCW, I hereby request on behalf of my client First City Development Corporation (FCDC) access to or copies of the below described public records. I believe they are in your custody or in custody of Ms. Jeanette Samek-McKague. The correspondence or notes of communication between the Department of Ecology and the City of Renton relating to the wetlands and other areas owned by FCDC in the Black River area in Renton. These documents are referenced specifically in an October 27, 1988, letter from Mr. Donald Erickson of the City of Renton to Mr. Mark Miller of FCDC. A copy of that letter is attached as Exhibit A, and the reference to those documents is marked. The documents may also be referenced in the indicated paragraph of a November 21 letter from Mr. Erickson to Mr. Miller. A copy of that letter is attached as Exhibit B. Of course, I will pay the requisite fees for any copies made. If I do not hear from you by Friday regarding this request, I will call you to insure that the requested records are available and to arrange for an opportunity to copy such records. From my conversation with Ms. McKague, I understand that you believe these records to be exempt from public disclosure. SEATTLE,WASHINGTON ANCHORAGE,ALASKA BELLEVUE,WASHINGTON MOUNT VERNON,WASHINGTON LONDON,ENGLAND Mr. Donald Erickson November 28, 1988 Page Two I do not know the basis of such a determination and would be happy to discuss the legal merits of such a claim with you or the City Attorney. If there are any questions, please contact me. Very truly yours, L NE WELL MOSS & MILLER Jef y . Goltz JDG/j JDG0109 Attachments cc: Mark Miller EXHIBIT A 40 CITY OF RENTON '"L DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor • PLANNING DIVISION First City Derebom t,t tarp. • October 27, 1988 OCT B 1 Mark Miller i Director of Planning First City Development Corp. 800 Fifth Avenue, Suite 4170 Seattle, WA 98104 . RE: Proposed Site Plan Approval and Substantial Shoreline Permits for Buildings 18, 19, 20, 21, 22, 23 & 24 on the northern portion of Blackriver Corporate Park • Dear Mr. Miller: We have initially reviewed your application of October 18, 1988 and find that it does not comply with the provisions of our letter of February 29, 1988 to you via your then Director of Planning, Barbara Moss. In that letter I stated that the Environmental Review Committee had, after carefully reviewing the historical . record, concluded that it was not Council's intent to include within the Shorelines Master Program's "natural area" designation anything more than the originalf20 acres— that were set aside as Riparian Forest and greenbelt preserves when the site was originally rezoned in 1983. The letter went on to note that subsequent findings, however, have required additional controls on development Oven though much of the site is considered to have development potential. These included measures necessary to protect the Great Blue Heron rookery and measures to protect existing wetlands on the site. 200 Mill Avenue South • Renton, Washington 98055 - (206)235•2550 uu ao co ate• PGVI: SEFITTLE Mark Miller First City Development Corp. Black River Corporate Park In this same letter of February 29, 1988 I stated that the ERC had asked me to inform you that, among other things: 1) "it will not entertain any development proposals that place buildings or parking within 600 lineal feet of the Heron rookery" 2) "it expects to see a series of shallow inter- connected drainage ponds developed along the north edge of the existing Reparian Forest and greenbelt easements", and 3) it "would like to see efforts taken, wherever possible, to incorporate existing wetlands identified by the Department of Ecology as having special significance into" the "landscape areas" . Note: The DOE has provided the City with information identifying these wetlands which it construes as having special significance and which should be saved. We will shortly be issuing an'/fadministrative determinatioh''on our interpretation of these and how they may affect substantial shoreline development permit applications in this area. Since the existing application (EFC-109-88) does not reflect the above conditions, the Environmental Review Committee has asked me to inform you that unless your application is withdrawn or substantially modified it believes, based upon probable impacts to the existing wetlands, the nearby Great Blue Heron rookery, not to mention possible traffic related impacts, that it would likely have no other choice but to issue a Determination of Significance, pursuant to WAC 197- 11-360. Such a decision would either require you to modify the project proposal so that there are no probable significant adverse environmental impacts or pre Ore an environmental impact statement for the project. (ate would seriously recommend this latter course of action rioting that the previous EIS for the Blackriver Corporate Park was for a "non-project" rezone application and that doing an EIS now would provide the greatest protection to you against subsequent environmental appeals. ) • e Mark Xiller First City Development Corp. Black River Corporate Park If we do not hear back from you on this matter by November 4, 1988 we will assume you have withdrawn your application and refund your application fees. If you have any questions regarding this letter or need clarification on the letter of February 29, 1988, please let me know. Si rely, Kao.,_. Donald K. Erickson, AICP Zoning Administrator DKE:mjp a $ EXHIBIT t ti • 0 Q CITY tiP RENTON 6.11' (EF'ARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNINO DIVISION November 21, 1988 Mark Miller Vice President, Development S00 Fifth Avenue, Suite 4170 Seattle, Washington 98104 RE: Site Plan Approval and Substantial Shoreline • Development Applications for Approximately 597,298 Sq. Ft. of Office in Seven Buildings on An ApproXimatsly 42 Acre Site. Dear Markt Staff and I have reviewed your application, particularly in light of the Department of Eoologyss stance on associated wetlands as well as that of this City, DOB, and others in regard to protecting the existing riparian forest and the Great Blue Heron rookery immediately south of the site. Because of the numerous environmental issues your application raises (traffic was previously addressed in the Grady Way Traffic Benefit Improvement District Study) particularly in terms of soils hydrology as it affects wetlands, impacts of loading the site with fill and how this will affect soils hydrology and wetlands, man-made influences on wildlife, etc. , not to mention impacts on community services such as police and fire, staff will likely be recommending to the Environmental Review Committee that an BIS be prepared for this development. In light of this I wanted to take this opportunity to inform you so that, if you choose, you could withdraw your application prior to such a threshold determination being made. Sometimes developers will choose to withdraw an application rather than having a determination being made that may negatively affect financing or pre -leasing negotiations that are going on, etc. 200 Mill Avenue South - Renton, Washington 98055 - (206)235•2550 ,. bite Plan Approval . and Substantial Development Permit �,,, . ' n « 2�CaVeQ�el�l+o�" 20, 98- Page 2 X also wanted to take this opportunity to explain to you that in doing an EIS now for the whole north halt of your holdings you probably would be providing yourselves with the greatest protection from later environmental challenges, if they should occur. such an EIS Also would provide useful information for DOE and other agencies who will be. reviewing any environmental determination the City makes. Also, as you know, the lest EIS for the Slack River Office Park was done in April, 1982 end was a programatio Eli for a non- ' project rezone of 71.16 acres from the "General" zoning . designation to the Manufacturing Park" zoning designation. (The current zoning on the sits, incidentally, is Office Park. ) As noted on page "-x-" of the final for this Ezs, "Future environmental consequences of speaifio on-site development will be addressed in more detail in future environmental documents." since some of this information is already available, particularly in terms of potential impacts to Herons, it also makes a lot of sense to this information together in a single pull for all eight buildings that can be circulatedoforncomments and address any subsequent issues or questions that are raised in a formal manner. x would appreciate hearing back from you whether you wish us to proceed with an environmental determination now. Please let me know as soon as possible A$ your project le Currently scheduled for consideration by the Environmental Review ,Committee on November 30, 1988. Sincerely, adry Donald R. Erickson, AZOP Zoning Administrator DRE:mjp 40 0 CITY OF RENTON DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNING DIVISION November 21, 1988 Mark Miller Vice President, Development 800 Fifth Avenue, Suite 4170 Seattle, Washington 98104 RE: Site Plan Approval and Substantial Shoreline Development Applications for Approximately 597,298 Sq. Ft. of Office in Seven Buildings on An Approximately 42 Acre Site. Dear Mark: Staff and I have reviewed your application, particularly in light of the Department of Ecology's stance on associated • wetlands as well as that of this City, DOE, and others in regard to protecting the existing riparian forest and the Great Blue Heron rookery immediately south of the site. Because of the numerous environmental issues your application raises (traffic was previously addressed in the Grady Way Traffic Benefit Improvement District Study) , particularly in terms of soils hydrology as it affects • wetlands, impacts of loading the site with fill and how this will affect soils hydrology and wetlands, man-made influences on wildlife, etc. , not to mention impacts on community services such as police and fire, Staff will likely be recommending to the Environmental Review Committee that an EIS be prepared for this development. In light of this I wanted to take this opportunity to inform you so that, if you choose, you could withdraw your application prior to such a threshold determination being made. Sometimes developers will choose to withdraw an application rather than having a determination being made that may negatively affect financing or pre-leasing negotiations that are going on, etc. 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 Mark Miller 1\ Site Plan Approval ana Substantial Development November 20, 1988 Page 2 I also wanted to take this opportunity to explain to you that in doing an EIS now for the whole north half of your holdings you probably would be providing yourselves with the greatest protection from later environmental challenges, if they should occur. Such an EIS also would provide useful information for DOE and other agencies who will be reviewing any environmental determination the City makes. Also, as you know, the last EIS for the Black River Office Park was done in April, 1982 and was a programatic EIS for a non- project rezone of 71.16 acres from the "General" zoning designation to the "Manufacturing Park" zoning designation. (The current zoning on the site, incidentally, is Office Park. ) As noted on page "-x-" of the final for this EIS, "Future environmental consequences of specific on-site development will be addressed in more detail in future environmental documents. " Since some of this information is already available, particularly in terms of potential impacts to Herons, it also makes a lot of sense to pull this information together in a single project-oriented EIS for all. eight buildings that can be circulated for comments and address any subsequent issues or questions that are raised in a formal manner. I would appreciate hearing back from you whether you wish us to proceed with an environmental determination now. Please let me know as soon as possible as your project is currently scheduled for consideration by the Environmental Review Committee on November 30, 1988. Sincerely, oar. Donald K. Erickson, AICP Zoning Administrator DKE:mjp Suite 4170 800 Fifth Avenue Seattle,Washington 98104 (206)624-9223 Telecopier(206)flastCrly DEVELOPMENTS CORP. CITY OF RENTON November 3 , 1988 ®P Il \ i'M 1OV3 199� Mr. Donald Erickson Zoning Administrator ,, CITY OF RENTON 200 Mill Avenue South Renton, Washington 98055 RE: SITE APPROVAL AND SUBSTANTIAL SHORELINE PERMITS FOR BUILDINGS 18 , 19, 20, 21, 22, 23 , 24 City of Renton letter dated October 27, 1988 Dear Don: We received your letter of October 27 , 1988 and would like to respond to the issues raised and reiterate our position on this application. Item 1: We direct your attention to the September 14, 1987 Renton City Council minutes relative to the clearing and grading permit on a site immediately to the south of our current application. In those minutes the City Council stated "Building locations are not predetermined in any manner by this recommendation. This recommendation is not precedent setting in any fashion concerning the issue of building locations. Normal city processes such as ERC and site plan review will determine the building locations. " We feel, as do expert consultants on this project, that a 600 foot setback from the rookery is not necessary. Visual screening during the breeding season of the herons appears to be adequate mitigation. In addition, we feel there is existing buffer around the heron rookery which acts as an additional screen from the proposed project. Item 2: A series of shallow ponds has been detailed on the drawings along with a Riparian Forest to rechart the water table serve as a secondary wildlife habitat. Item 3 : Efforts were taken to preserve wetlands identified by DOE in particular E02 and E03 per the unadopted 1981 Wetlands Study, plus adding additional wetlands in the average 50 foot buffer area for existing 20 acre Riparian Forest buffer. See item ( 2 comments) . Mr. Donald Erickson November 3 , 1988 Page 2 Also, please review traffic reports referenced with submittal and relate these to actual proposed density from original proposed density. The completion of Oakesdale, Naches and Seventh were programmed to accommodate this project with far greater density than proposed in this submittal. You made reference in your letter that DOE has provided the city with information and that an administrative determination would be issued in the near future. We have not been made party to those recommendations. Before any such administrative determination purporting to be applicable to our project is made, we would like to (a) participate in the development of such a determination and (b) review a draft of this determination before it is formalized. Finally, we would like copies of any and all written information you have received from DOE relative to this site plan approval since we have received no copies of any such information. In conclusion we do not wish to withdraw the submittal and would appreciate staff ' s assistance in continuing to process the submittal. Yours truly, FIRST CITY DEVELOPMENTS CORP. Mark Mille Vice President Development MM:az cc: Royce Berg I 51226 10-c6 SHORELINE APPLICATI( J NOTICE OF APPLICATION OR AFFIDAVIT OF PUBLICATION SUBSTANTIALSHNE MANAGFME O IDEVELOPMENT PERMIT Notice is hereby given that First City Audrey Benner Development Corp. has filed an application ,being first duly sworn on oath states for a substantial development permit for the construction or development of 3 three sto- that he/she is the Chief Clerk of the ry office buildings, 3 five story office build- ings, 1 four story office building, and a three level parking structure. VALLEY DAILY NEWS located at: Blackriver Corporate Park,north of Interstate 405, North of the P-1 detention • Kent Edition • Renton Edition • Auburn Edition pond, East of Monster Road, and south of the Burlington Northern Railroad. within Section(s) 13 of Township 23 N, Daily newspapers published six (6) times a week.That said newspapers Range 04, W.M., in the City of Renton, are legal newspapers and are now and have been for more than six King County, Washington. Said develop- mentmonths prior to the date of publication referred to,printed and published proposedtsa to i within P 1 detention pond and//orr its associated wetlands. in the English language continually as daily newspapers in Kent, King Any person desiring to express his views County,Washington.The Valley Daily News has been approved as a legal or to be notified of the action taken on this newspaper order of the Superior Court of the State of Washington for applicationo pshould notify the Building and by P g Zoning Department, Renton Municipal King County. Building, 200 Mill Avenue South, Renton, Washington 98055 in Writing of his interest within thirty(30)days of the last publication The notice in the exact form attached,was published in the Kent Edition of this notice. CityD ofp Renton , Renton Edition x , Auburn Edition (and not in Building and Zoning Department supplement form) which was regularly distributed to its subscribers 10-85 during the below stated period.The annexed notice a Published30 in Valley Daily R320News Octo ber 30 and November 16, 1988. R3203 Notice of Application - - waspublishedon tnher 30 and Nove ahe-r 1-6, 19RR R3203 The full amount of the fee charged for said foregoing publication is the sum of $ 4 5 . 0 0 Subscribed and sworn to before me this 16 ta(ay of Nov 198 Notar ublic for the State of Washington, residing at Federal Way, King County, Washington. VDN#87 Rev,sed 11116 • 4e CITY OF RENTON DEPARTMENT OF COMMUNITY DEVELOPMENT Earl Clymer, Mayor PLANNING DIVISION October 27, 1988 Mark Miller Director of Planning First City Development Corp. 800 Fifth Avenue, Suite 4170 Seattle, WA 98104 RE: Proposed Site Plan Approval and Substantial Shoreline Permits for Buildings 18, 19, 20, 21, 22, 23 & 24 on the northern portion of Blackriver Corporate Park Dear Mr. Miller: We have initially reviewed your application of October 18, 1988 and find that it does not comply with the provisions of our letter of February 29 , 1988 to you via your then Director of Planning, Barbara Moss. In that letter I stated that the Environmental Review Committee had, after carefully reviewing the historical record, concluded that it was not Council 's intent to include within the Shorelines Master Program' s "natural area" designation anything more than the original 20 acres that were set aside as Riparian Forest and greenbelt preserves when the site was originally rezoned in 1983 . The letter went on to note that subsequent findings, however, have required additional controls on development even though much of the site is considered to have development potential. These included measures necessary to protect the Great Blue Heron rookery and measures to protect existing wetlands on the site. 200 Mill Avenue South - Renton, Washington 98055 - (206)235-2550 Mark Miller ✓ First City Development Corp. Black River Corporate Park In this same letter of February 29, 1988 I stated that the ERC had asked me to inform you that, among other things: 1) "it will not entertain any development proposals that place buildings or parking within 600 lineal feet of the Heron rookery" 2) "it expects to see a series of shallow inter- connected drainage ponds developed along the north edge of the existing Reparian Forest and greenbelt easements", and 3) it "would like to see efforts taken, wherever possible, to incorporate existing wetlands identified by the Department of Ecology as having special significance into" the "landscape areas" . Note: The DOE has provided the City with information identifying these wetlands which it construes as having special significance and which should be saved. We will shortly be issuing an administrative determination on our interpretation of these and how they may affect substantial shoreline development permit applications in this area. Since the existing application (EFC-109-88) does not reflect the above conditions, the Environmental Review Committee has asked me to inform you that unless your application is withdrawn or substantially modified it believes, based upon probable impacts to the existing wetlands, the nearby Great Blue Heron rookery, not to mention possible traffic related • impacts, that it would likely have no other choice but to issue a Determination of Significance, pursuant to WAC 197- 11-360. Such a decision would either require you to modify the project proposal so that there are no probable significant adverse environmental impacts or prepare an environmental impact statement for the project. (We would seriously recommend this latter course of action noting that the previous EIS for the Blackriver Corporate Park was for a "non-project" rezone application and that doing an EIS now would provide the greatest protection to you against subsequent environmental appeals. ) M ' Mark Miller ;y First City Development Corp. Black River Corporate Park If we do not hear back from you on this matter by November 4, 1988 we will assume you have withdrawn your application and refund your application fees. If you have any questions regarding this letter or need clarification on the letter of February 29, 1988, please let me know. Sincerely, ri V (71 Donald K. Erickson, AICP Zoning Administrator DKE:mjp I e-�' .v l T[TY . OF RENTC -h;�� FILE NO(S): 5IO1 88 U BUILDING & ZONING DEPARTMENT SM-/D9 ♦ A ® •' ev—log—Sa tS MASTER APPLICATION NOTE TO APPLICANT: Since this is a comprehensive application form, only those items related to your specific type of application(s) are to be completed. (Please print or type. Attach additional sheets if necessary.) • APPLICANT 1 1 TYPE OF APPLICATION NAME FEES First City Developments Corp. ❑ REZONE*(FROM TO ) ADDRESS 800 Fifth Avenue, Suite 4170 ❑ SPECIAL PERMIT* CITY ZIP • TEMPORARY PERMIT* CDSeattle, WA 98104 CONDITIONAL USE PERMIT* ' SITE PLAN APPROVAL 5510.00 TELEPHONE SPECIAL PERMIT FOR GRADE AND FILL 624-9223 No. of Cubic Yards: ` F , VARIANCE* CONTACT PERSON From Section: NAME Justification Required Mark Miller 4I *XX Shoreline Permit $6,270.22 ADDRESS ' SUBDIVISIONS: 800 Fifth Avenue, Suite 4170 Q SHORT PLAT CITY Seattle, WA 98104 ZIP ❑ TENTATIVE PLAT ❑ PRELIMINARY PLAT TELEPHONE ❑ FINAL PLAT 624-9223 I. ❑ WAIVER (Justification Required) OWNER NO. OF LOTS; NAME PLAT NAME: First City Developments Corp. , ADDRESS PLANNED UNIT DEVELOPMENT: 800 Fifth Avenue, Suite 4170 ❑ PRELIMINARY CITY ZIP ❑ FINAL Seattle, WA 98104 P.U.D. NAME: TELEPHONE 624-9223 ❑ Residential ❑ Industrial ❑ Commercial ❑ Mixed LOCATION MOBILE HOME PARKS: � R Y AD N rtt h o•� Metro..Ser. i ce treatmennt ° i P-1 ete.� ton.. as i n & South ❑ TENTATIVE of Burlington Northern Railroad tracksED EXISTING USE PRESENT ZONING PRELIMINARY VACANT OP ❑ FINAL PROPOSED USE PARK NAME: • Office/High Tech Flex NUMBER OF SPACES: ® ENVIRONMENTAL REVIEW COMMITTEE $3,080. 11 ,i SQ. FT. ACRES TOTAL FEES q AREA: 1 �33�_}78 S� 42 $ ,RFn_�� *Asia DVI.CInpi • GITY0FREIGNSAFF USE ONLY -- ADMINISTRATIVE PROCESSING DATE ST ' _OCT 1 8 1988 APPLICATION RECEIVED BY: . APPLICATION DETERMINED TO BE: £ CEI VE , ❑ Accepted ❑ Incomplete Notification Sent On By: (Initials) DATE ROUTED ADDITIONAL MATERIAL RECEIVED BY: a ``3 ti bn APPLICATION DETERMINED TO BE: '. ❑ Accepted . • • ❑ Incomplete Notification Sent On By: s (Initials) ROUTED TO: ❑ Building ❑ Design Eng. ❑ Fire ❑ Parks ❑ Police • ❑ Policy Dev. ❑ Traffic Eng. ❑ Utilities ' ---�� -401 Legal description of property (if more space is required, attach a separate sheet). SEE ATTACHED SHEETS AFFIDAVIT I, Mark Miller . being• duly sworn, declare that I am [authorized representative to act for the property owner,®owner of the property involved in this application and that the foregoing statements and answers herein contained and the Information herewith submitted are in all respects true and correct to the best of my knowledge and belief. SUBSCRIBED AND SWORN TO BEFORE ME THIS PM DAY OF (C)� 19 NOTARY PUBLIC IN AND FOR THE STATE OF WASHI GTON RESIDING AT • (Narne.of Notary'Pub c) (Signature of Owner) 'pi , _, 800 5th Avenue, Suite 4170 (Address) (Address) Seattle, WA 98104 (City) (State) (Zip) (206) 624-9223 (Telephone) Acceptance of this application and required filing fee does not constitute a complete application. Plans and other materials required to constitute a complete application are listed In • the "Application Procedure." Form #174 • BUSH, RUED & HITCHINGS. INC. NEW PARCEL 3 THAT PORTI014 OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SOUTHEAST QUARTER WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1099.78 FEET; THENCE NORTH 1°45'00" EAST 400.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 88°15'00" WEST 350.00 FEET; THENCE NORTH 71°42'49" WEST 218.86 FEET; THENCE NORTH 12°19' 12" WEST 109.81 FEET; THENCE SOUTH 71°22'34" WEST 174.45 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 650.00 FEET THE RADIUS POINT OF WHICH BEARS SOUTH 67°05'58" WEST; THENCE NORTHWESTERLY ALONG SAID CURVE 174.47 FEET; THENCE NORTH. 39°14' 15" EAST 453 . 11 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1165.09 FEET , THE RADIUS POINT OF WHICH BEARS SOUTH 39° 14 ' 15" WEST ; THENCE SOUTHEASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 267.97 FEET; THENCE SOUTH 37°35'03" EAST 308.70 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 1005.37 FEET A DISTANCE OF 248.54 FEET TO A POINT WHICH BEARS NORTH 1°45'00" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 1°45'00" WEST 18.89 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.7505 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS -OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES OVER THAT PORTION DESCRIBED AS FOLLOWS; COMMENCING AT THE MOST WESTERLY CORNER THEREOF; THENCE SOUTHERLY ALONG THE WESTERLY LINE OF THE ABOVE DESCRIBED MAIN TRACT 174.47 FEET TO THE SOUTHERLY LINE THEREOF AND THE TRUE POINT OF BEGINNING; THENCE NORTH 71°22'34" EAST ALONG SAID SOUTHERLY LINE 144.45 FEET; THENCE NORTH 12°19 ' 12" WEST 60.87 FEET; THENCE SOUTH 71°22'34" EAST 157 FEET TO SAID WESTERLY LINE; THENCE SOUTHERLY ALONG SAID WESTERLY LINE TO THE TRUE POINT OF BEGINNING. Co. 7:iX Aa, /3Z/i' - 7P88 FIRST CITY DEVELOPMENT CORP. APRIL 19, 1988 ARTHUR L. HITCHINGS ANC~Q L.HITc BRH JOB NO. 86114.04 co. PLANNING D9V181U�� SURV. 20A Q �, %qI -1 CITY OF RENTN �" ifir D OCT 1 8 1988o E C f IJ / F L sGis T ERE'S (AC jr BUSH. RLI D & HITCHINGS, INC. NEW PARCEL 4: THAT PORTION OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON AND TRACT 25, RENTON SHORELANDS 2ND SUPPLEMENTAL DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SOUTHEAST QUARTER WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1 ,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT WITH A RADIUS OF 853.34 FEET A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 140.57 FEET; THENCE SOUTH 71°22'34" WEST 413.75 FEET; THENCE SOUTH 31°14'05" WEST 358.99 FEET; THENCE SOUTH 47°09'50" EAST 71.33 FEET; THENCE EAST 114.27 FEET; THENCE SOUTH 68.91 FEET TO THE NORTH LINE OF THE SOUTH 650.00 FEET OF SAID SECTION 13; THENCE SOUTH 88°15'00" EAST ALONG SAID NORTH LINE 454.26 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.8319 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF ' SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. , �o Tx /. /323oy, FIRST CITY, DEVELOPMENTS CORP. APRIL 19, 1988 ARTHUR L. HITCHINGS BRH JOB NO. 86114.04 SURV. 20A ,,fi\csk t.FIB o FGISTES ���`'`" s' . kA� LM ,/11� BUSH, RUED & HITCHINGS, INc. NEW PARCEL 5: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: BEGINNING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13 WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 2080.77 FEET; THENCE NORTH 68.91 FEET; THENCE WEST 114.27 FEET; THENCE NORTH 47°09'50" WEST 71.33 FEET; THENCE NORTH 31°14'05" EAST 358.99 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 42°06'.08" WEST 215.00 FEET; THENCE SOUTH 80°04'48" WEST 232.00 FEET; THENCE NORTH 12°O1'00" WEST 40.75 FEET; THENCE SOUTH 77°59'00" WEST 133.03 FEET; THENCE ON A CURVE TO THE RIGHT HAVING A RADIUS OF 230.00 FEET A DISTANCE OF 111 .56 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 160.00 FEET A DISTANCE OF 197.73 FEET; THENCE SOUTH 82°15'00" WEST 67.68 FEET; THENCE SOUTH 31°32'22" WEST 71.06 FEET; THENCE NORTH 81°11'35" WEST 47.50 FEET TO A POINT OF A CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 52°42'12" EAST; THENCE EASTERLY ALONG SAID CURVE 1359.12 FEET TO A POINT WHICH BEARS NORTH 71°22'34" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 71°22'34" WEST 239.30 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 6.3831 ACRES, TOGETHER WITH AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS; BEGINNING AT THE MOST EASTERLY CORNER OF THE ABOVE DESCRIBED TRACT; THENCE NORTH 71°22'34" EAST ALONG AN EXTENSION OF THE SOUTHERLY LINE THEREOF 144.45 FEET; THENCE NORTH 12°19'12" WEST 60.87 FEET; THENCE SOUTH 71°22'34" WEST 157 FEET TO THE NORTHEASTERLY LINE OF THE ABOVE DESCRIBED TRACT; THENCE SOUTHEASTERLY ALONG SAID NORTHEASTERLY LINE TO BEGINNING, ALSO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A.DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2, 745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. �,���tt t. rr�N� -y �v T x m• /jzjo�--9oyd dr�.�S OF Alq FIRST CITY DEVELOPMENTS CORP. , . OPRIL 19, 1988 2 ARTHUR L. HITCHINGS r F "', tiBRH JOB NO. 86114.04 p {� +� SURV. 20A r O!STE�. 1� '6 4'a I;.HD /� BUSH. RUED & HITCHINGS. INC. NEW PARCEL 6 THAT PORTION OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH—SOUTH CENTERLINE OF SAID SECTION 13, A DISTANCE OF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26 OF RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS, ACCORDING TO THE UNRECORDED PLAT THEREOF; THENCE SOUTH 72°37'52" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 382.60 FEET; THENCE NORTH 70°54'02" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 73.51 FEET TO THE EAST LINE OF THE CHARLES BROWNELL DONATION LAND CLAIM NO. 41; THENCE NORTH O1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET; THENCE SOUTH 81°11 '35" EAST 119.19 FEET TO A POINT ON CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 52°42' 12" EAST; THENCE NORTHEASTERLY ALONG SAID CURVE 538.45 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUE ALONG SAID CURVE 646.21 FEET; THENCE NORTH 39°14'15" EAST 453. 11 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT—OF—WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1 ,165.09 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°14'15" WEST; THENCE WESTERLY ALONG SAID CURVE AND SOUTHERLY LINE 829.08 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,814.93 FEET A DISTANCE OF 79.20 FEET TO A POINT WHICH BEARS NORTH 1°24'04" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 1°24'04" WEST 365.48 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 7.1029 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A' CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. I Co, 7: e Ao , /321 d y- fo/z � Act°F W L. 7 y��� FIRST CITY DEVELOPMENTS CORP. � /' ,IJew ` REV. MAY 4, 1988 ', ' ��ARTHUR L. HITCHINGS I 174, z BRH JOB NO. 86114.04 • / !' -3f SURV. 20A .1 tat+ `'11#1'f BUSH, RUED & HITCHINGS. INc. NEW PARCEL 7: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE OF SAID SECTION 13, A DISTANCE OF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26 OF RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS, ACCORDING TO THE UNRECORDED PLAT THEREOF; THENCE SOUTH 72°37'52" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 382.60 FEET; THENCE NORTH 70°54'02" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 73.51 FEET TO THE EAST LINE OF THE CHARLES BROWNELL DONATION LAND CLAIM NUMBER 41; THENCE NORTH O1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°24'04" EAST ALONG SAID EAST LINE 509.58 FEET TO THE SOUTH LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT- OF-WAY; THENCE EASTERLY ALONG SAID SOUTH LINE AND ON A CURVE HAVING A RADIUS , OF 2,814.93 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 14°57'22" EAST, A DISTANCE OF 580.22 FEET; THENCE SOUTH 1°24'04" WEST 365.48 FEET TO A POINT OF A CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 5°14'26" EAST; THENCE WESTERLY ALONG SAID CURVE 538.45 FEET TO A POINT WHICH BEARS SOUTH 81°11'35" EAST FROM THE TRUE POINT OF BEGINNING; THENCE NORTH 81°11'35' WEST 119.19 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.8480 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. Co Tex A/o. /3 z3t9 9- yo zy' L.HIT , .. n ~ r 0- 0 �'" 'i FIRST CITY DEVELOPMENTS CORP. 7 ' X REV. MAY 4, 1988 • t•� k ARTHUR L. HITCHINGS * BRH JOB NO. 86114.04 rls76140 t` tly SURV. 20A ,r.r ,"; of H"I LAP !Ji BUSH, RUED & HITCHINGS, INc. NEW PARCEL 8 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13; TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST ALONG SAID SOUTH LINE 73.51 FEET TO THE EAST LINE OF SAID C.E. BROWNELL'S LAND DONATION LAND CLAIM NO. 41; THENCE NORTH 1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 81°11'35" WEST 26.31 FEET; THENCE SOUTH 82°15'00" WEST 92.99 FEET; THENCE SOUTH 35°29'30" WEST 143.18 FEET; THENCE NORTH 74°44'00 WEST 84.85 FEET; THENCE SOUTH 60°16 '00" WEST 67.00 FEET; THENCE SOUTH 12°16'00" EAST 97.35 FEET; THENCE SOUTH 68°06'46" WEST 110.53 FEET; THENCE NORTH 12°16'00" WEST 140.00 FEET; THENCE NORTH 19°41'48" EAST 80.00 FEET; THENCE NORTH 0°41'48" EAST 240.00 FEET; THENCE NORTH 26°45'10" WEST 154.31 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1768.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 26°45' 10" EAST; THENCE EASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 157.52 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 8603.00 FEET A DISTANCE OF 204.54 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,922.10 FEET A DISTANCE OF 178.79 FEET TO THE EASTERLY LINE OF SAID C.E. BROWNELL'S DONATION CLAIM NO. 41; THENCE SOUTH 1°24'04" WEST 509.59 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.5110 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS; THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. max Ao. 377ylo ,o// 0.P., I,,_1��7 y FIRST CITY DEVELOPMENTS CORP. �^ REV. MAY 4, 1988 )01), z ARTHUR L. HITCHINGS • ( I BRH JOB NO. 86114.04 s� � � +�) SURV. 20A ���^ UiSTE��.•;� )vi �� �',rrv.cife/ BUSH, RUED & HITCHINGS, INc. NEW PARCEL 9 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13; TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST ALONG SAID SOUTH LINE 73.51 FEET TO THE EAST LINE OF SAID C.E. BROWNELL'S DONATION CLAIM NO. 41; THENCE NORTH 1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET; THENCE NORTH 81°11'35" WEST 26.31 FEET; THENCE SOUTH 82°15'00" WEST 92.99 FEET; THENCE SOUTH 35°29'30" WEST 143. 18 FEET; THENCE NORTH 74°44'00 WEST 84.85 FEET; THENCE SOUTH 60°16'00" WEST 67.00 FEET; THENCE SOUTH 12°16'00" EAST 97.35 FEET; THENCE SOUTH 68°06'46" WEST 110.53 FEET TO THE TRUE POINT OF BEGINNING; THENCE SOUTH 68°06'46" WEST 265.00 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 195.01 FEET, THE RADIUS POINT OF WHICH BEARS WEST; THENCE NORTHWESTERLY ALONG SAID CURVE 267.83; THENCE NORTH 78°41'24 WEST 117.64 FEET;' THENCE NORTH 1°24'04" ' EAST 200.97 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 10,543.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 36°50'42" EAST; THENCE NORTHEASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 93.53 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,657.00 FEET A DISTANCE OF 193.93 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 6,738.00 FEET A DISTANCE OF 197.76 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,768.00 FEET A DISTANCE OF 36.93 FEET; THENCE SOUTH 26°45'10" EAST 154.31 FEET; THENCE SOUTH 0°41 '48" WEST 240.00 FEET; THENCE SOUTH 19°41'48" WEST ' 80.00 FEET; THENCE SOUTH 12°16 '00" EAST 140.00 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.3332 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: 1 COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, • SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS . OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. 7;1' 77 9 Q /.� �' • ;FIRST CITY DEVELOPMENTS CORP. , !. . •�\ 4EV. MAY 4, 1988 i : ., • 1 4RTHUR L. HITCHINGS .. � $RH JOB NO. 86114.04 t'i.j;.reD . ' •' URV. 20A • BUSH, RC/at) & HITCHINGS. INC. NEW PARCEL 10 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST 354.53 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 73°56'O1" WEST 130.08 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 41°16'07" WEST ALONG THE SOUTH LINE OF SAID TRACT 26 A DISTANCE OF 316.18 FEET TO A POINT ON THE NORTH BOUNDARY OF A TRACT OF LAND DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°41'39" WEST; THENCE WESTERLY ALONG SAID CURVE AND NORTH BOUNDARY 373.11 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°24'04" EAST 582.36 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 10543.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 36°50'42" EAST; THENCE WESTERLY ALONG SAID CURVE AND SAID SOUTHERLY LINE 92.98 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1 ,853.00 FEET A DISTANCE OF 194. 75 FEET TO A POINT OF COMPOUND CURVE, THE CENTER OF SAID CURVE BEARS SOUTH 43°22'19" EAST 4,030.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE LEFT, THROUGH A CENTRAL ANGLE OF 2°48'32", AN ARC DISTANCE OF 197.57 FEET TO A POINT OF TANGENCY; THENCE SOUTH 43°49'09" WEST ALONG SAID SOUTH MARGIN 271.00 FEET TO A POINT OF CURVE; THENCE ON A CURVE TO THE RIGHT ALONG SAID SOUTHERLY MARGIN, HAVING A RADIUS OF 1,571.00 FEET, THROUGH A CENTRAL ANGLE OF 7°32'02", AN ARC DISTANCE OF 206.57 FEET TO A POINT OF COMPOUND CURVE, THE CENTER WHICH BEARS NORTH 38°38'49" WEST 727.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE RIGHT, THROUGH A CENTRAL ANGLE OF 16°55'35", AN ARC DISTANCE OF 214.77 FEET TO A POINT OF COMPOUND CURVE, THE CENTER WHICH BEARS NORTH 21°43'14" WEST 1 ,055.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE 'TO THE RIGHT, THROUGH A CENTRAL ANGLE OF 11°24'08", AN ARC DISTANCE OF 209.95 FEET TO A POINT OF COMPOUND CURVE THE CENTER OF WHICH BEARS NORTH 10°19'06" WEST 696.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE RIGHT THROUGH A CENTRAL ANGLE OF 3°44'25", AN ARC DISTANCE OF 45.43 FEET TO THE EASTERLY MARGIN OF THE CHARLES MONSTER COUNTY ROAD; THENCE SOUTH 34°19 '34" EAST ALONG SAID EASTERLY MARGIN 43.56 FEET TO THE NORTH BOUNDARY OF SAID TRACT DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786 THENCE NORTH 74°13'19" EAST ALONG SAID NORTH BOUNDARY 443.81 FEET; THENCE NORTH 59°53'47" EAST ALONG SAID NORTH BOUNDARY 377.52 FEET; THENCE EAST ALONG SAID NORTH BOUNDARY 280.69 FEET; THENCE SOUTH ALONG SAID NORTH BOUNDARY 25.00 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH; THENCE EASTERLY ALONG SAID CURVE AND NORTH BOUNDARY 61 . 59 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.0046 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: BUSH, Rt..,=D & HITCHINGS, INc. NEW PARCEL 10 - PAGE 2 THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE ' NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. 1 o 7 X moo, 3/7,40 -D/rp bl V 7G ( FIRST CITY DEVELOPMENTS CORP. (/, ' f REV. MAY 4, 1988 g49 �'r ii ` ARTHUR L. HITCHINGS ` ;` ~ 4._ �4 BRH JOB NO. 86114.04 l',I/!` •} ,.(.2 . SURV. 20A r, , BUSH, Rt.dcD & HITCHINGS. INC. REMAINDER THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN; AND THAT PORTION OF JUNCTION ADDITION TO THE CITY OF SEATTLE, AS PER PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF KING COUNTY; TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW; AND OF CHARLES BROWNELL'S DONATION CLAIM NO. 41 AND OF THAT PORTION OF TRACTS 25 AND 26, RENTON SHORELANDS 2ND SUPPLEMENTAL, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958 AND THE TRUE POINT OF BEGINNING; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST 354.53 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 73°56'O1" WEST 130.08 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26 ; THENCE SOUTH 41°16 '07" WEST ALONG THE SOUTH LINE OF SAID TRACT 26 A DISTANCE OF 316.18 FEET TO A POINT ON THE NORTH BOUNDARY OF A TRACT OF LAND DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°41 '39" WEST; THENCE WESTERLY ALONG SAID CURVE AND NORTH BOUNDARY 373.11 FEET; THENCE NORTH 1°24'04" EAST 381.39 FEET; THENCE SOUTH 78°41'24" EAST 117.64 FEET; THENCE ON A CURVE TO THE RIGHT HAVING A RADIUS OF 195.01 FEET A DISTANCE OF 267.83 FEET; THENCE NORTH 68°06'46" EAST 375.53 FEET; THENCE NORTH 12°16'00" WEST 97.35 FEET; THENCE NORTH 60°16'00" EAST 67.00 FEET; THENCE SOUTH 74°44'00" EAST 84.85 FEET; THENCE NORTH 35°29'30" EAST 143.18 FEET; THENCE NORTH 82°15'00" EAST 92.99 FEET; THENCE SOUTH 81°11'35" EAST 193.00 FEET; THENCE NORTH 31°32'22" EAST 71.06 FEET; THENCE NORTH 82°15'00" EAST 67.68 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 160.00 FEET, THE RADIUS POINT OF WHICH BEARS NORTH 86°34'52" EAST; THENCE SOUTHEASTERLY ALONG SAID CURVE 197.73 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 230.00 FEET A DISTANCE OF 111.56 FEET; THENCE NORTH 77°59'00" EAST 133.03 FEET; THENCE SOUTH 12°01 '00" EAST 40.75 FEET; THENCE NORTH 80°04'48" EAST 232.00 FEET; THENCE SOUTH 42°06'08" EAST 215.00 FEET; THENCE SOUTH 31°14'05" WEST 358.99 FEET; THENCE SOUTH 47°09'50" EAST 71 .33 FEET; THENCE EAST 114.27 FEET; THENCE SOUTH 68.91 FEET TO THE SOUTHERLY LINE OF SAID TRACTS 25 AND 26; THENCE NORTH 88°15'00" WEST ALONG SAID SOUTHERLY LINE 180.64 FEET; THENCE NORTH 33°07 '25" WEST ALONG SAID SOUTHERLY LINE 154.51 FEET; THENCE NORTH 27°21 '32" EAST ALONG SAID SOUTHERLY LINE 387.32 FEET; •THENCE NORTH 83°17'25" WEST ALONG SAID SOUTHERLY LINE 171.17 FEET; THENCE SOUTH 46°22'22" WEST ALONG SAID SOUTHERLY LINE 324.66 FEET; ' THENCE SOUTH 72°37'52" WEST ALONG SAID SOUTHERLY LINE 76.33 FEET TO THE TRUE POINT OF BEGINNING. SITUATE IN THE CITY OF RENTON, COUNTY OF KING, STATE OF WASHINGTON. ; `•••> -- Co 7�X /YV, 3TT 91� _' 0//`v i ' • FIRST CITY DEVELOPMENTS CORP. ' ` REV. MAY 18, 1988 ARTHUR L. HITCHINGS .;;{ BAH JOB NO. 86114.04 `r \\f ,a ,•` pURV. 20A Architecture and Planning • Leason Pomeroy Northwest, Inc., Royce A. Berg,A.I.A., 1127 Pine Street,Suite 300 Seattle,WA 98101 (206)583-8030 TRANSMITTAL . -To: City of Renton Date: October 18, 1988 Dept. of Building & Zoning-. r ' ' . 200 Mill Avenue South ' - Project Name: Blackriver Corp. Park 'Renton, WA 98055 ' . , .Northern -Section Project No: NW 85058 Attn:' Donald K. Eric:kson .' ' . Re: . Site Approval Submittal . • ' • ' Description: - . 7 Copies Completed. Site Plan Approval Application with Legal - , • descriptions and Affidavit of Ownership. ' Includes Original . • 7 Copies ' Completed Substantial Development Application with Legal Description and Affidavit of Ownership. Includes Original . ' 7 Copies Environmental 'Checklist _ 8 Copies Letter of Design Intent • . 7 Sets Prints., Site Plan with Vicinity Map, Grading/Drain,age Plan, Landscape Plan, Building Elevations 1 Set • 82 x 11 PMT reductions of above drawings 1 Application Fee; - Remarks: . • ❑Sent per your Request . ® For Approval � ❑ Other: - . ❑ For your Use/Reference . ❑ For Distribution - ❑ For Review and Comment ❑ For your Records Submittal for Site Plan Approval and ,Substantial Development - Permit. - • . - • HAND DELIVERED PLANNING DIVISION P CIIYOFRENTON By: Paul R. Cop:pock t ,,,T 1 ,, lq 1 �, cc: Mark Miller (with encl ..) . . Ron Goldy, BRH . . Ted Holden, MNG • . Architecture and Planning 4-T . IP Leason Pomeroy Northwest, Inc.,Royce A. Berg,A I.A., 1127 Pine Street,Suite 300 Seattle,WA 98101 (206)583-8030 October 17, 1988 PROJECT NARRATIVE BLACKRIVER CORPORATE PARK BUILDINGS 18, 19, 20, 21, 22, 23 & 24 This proposal is for the design and construction of the northern portion of Blackriver Corporate Park Buildings 18, 19, 20, 21, 22 , 23 and 24 . The square footage of this proposal is approximately 597,298, consisting of three 3-story buildings, one 4-story building, two 5-story buildings, and one three level parking structure for Buildings 21, 22 and 23 . The site has been cleared (exclusive of Natural area designations under previous approved permits with major significant trees left and preserved by this proposal. These buildings will be developed on approximately 1,833, 178 S.F. of site. Development of the site will consist of approximately 166,000 S.F. of secondary waterfowl habitat and recharge area for the P-1 channel which is exclusive of the greenbelt parcels, easements, and dedicated areas. This area is equivalent to a 50 foot buffer around the greenbelt areas, but varies to accommodate significant trees. An additional 31, 000 S.F. of site will be left undeveloped southeast of Building 20 as an unadopted wetland area. Siting of the buildings is such that a majority of vehicular activity is buffered from the greenbelt areas as much as possible by the buildings. All buildings are planned to incorporate landscaped areas, preserve existing trees, and create outdoor plazas with seating walls and bike racks and are connected with pathways. Site access is provided by a private extension of Naches Avenue SW and a paved Emergency Vehicle Access path which already exists as a road between Monster Road and the termination turn-around of the private extension. All buildings incorporate tinted glass with Dryvit panels, except Building 20, which combines reflective and tinted glass with tilt-up concrete panels. Reflective glass is used to emphasise points of entry. No reflective glass is used within 600 feet of the heron rookery. Existing and planned uses within 1,000 feet of the project site are compatible with the proposed development. Existing office, commercial and manufacturing, compatible with thM. lAslists to the south, east and west. CITY OF RENTON D O C T 1 8 1988 CITY of RENTON ,,1U:•n. h.,... . BUILDING & ZONING DEPARTMENT Earl Clymer, Mayor Ronald G. Nelson, Director • February 29, 1988 Barbara Moss Director of Planning First City Developments 800 Fifth Avenue, Suite 4170 Seattle, WA 98104 RE: Blackriver Corporate Park, North Half Development Constraints Dear Ms. Moss: On behalf of the Environmental Review Committee of the City cf Renton I have been asked to write you and explain the City's position regarding development constraints on the north half of the Earlington Park/Blackriver site. As you knowlast October the Department of Ecology presented their plan . for preserving wetlands and wildlife habitation on the north half of the site. Their program was predicated upon the assumption that the area west of the confluence of Springbrook Creek and the Black River that was designated "natural area" under the City' s Shoreline Master Program could be exchanged for a wetland area of equal size over the north half of the site. After carefully reviewing the record the ERC has concluded that in their opinion, it was not Council 's intent to include within this natural area designation anything more than the original 20 acres (approximate) that were set aside as Riparian Forest and greenbelt preserves when the site was originally rezoned in 1983 . Under this historical interpretation, the, remaining portions of the subject site would be c_:•i— under the "urban" designation of the City' s SMP which allows "high-intensity land use" that is preferably interdependent and - allows , for public visual and physical access. Barbara Moss First City Developments February 29, 1988 • Page 2 In reaching this decision, the Committee was also influenced by the Army Corps of Engineers failure to require a 404 Permit for the filling of those wetlands Ecology sought to save, • apparently, on the belief that substantial development work had already occurred which had jeopardized areas for wetland use. As a consequence, the ERC has determined that in terms of wetland preservation its focus should primarily be on measures that help ensure the preservation of existing wetland habitats on the site. Measures already mentioned include wetland ponds or surface type- drainage ditches that will facilitate the recharge of these areas, as well as possibly other features that will help ensure the necessary microclimatic conditions necessary to sustain existing reparian flaura and fauna indigenous-to the site. In regards to this latter concern, it should be pointed out that the Council has already established precedence in terms of protecting the existing Great Blue Heron rookery with landscape buffers on the south side of the P-i Channel forebay at distances of 600 feet and 1, 000 feet from the center of the . rookery. The Environmental Review Committee believes that in light of existing evidence and the precedence already set on the southern portion of the forebay, it would have no other choice but to enforce, as a minimum, a 600 foot landscaped buffer/setback from the existing heron rookery. The Committee therefore has asked me to inform you that it will ' not. • entertain * any development proposals that place buildings or parking within 600 lineal feet of the heron rookery. Also, it expects to see a series of shallow inter- connected drainage ponds developed along the north edge of the existing Reparian Forest and greenbelt easements that will serve three purposes: 1) the recharge of existing wetlands that are to be retained on the site; 2) the provision of waterfowl feeding and nesting habitat; and 3) the bio- treatment and filtering of future surface water runoff from impervious surfaces. Also, since at least 20 percent of the area of future development sites are to have continuous, natural landscaping, the Committee would like to see efforts taken, wherever possible, to incorporate o .1y existing wetlands identified by the Department of Ecology as having • special significance into these landscape areas. The Committee also believes that you should work with the City to see if they would allow exchanging existing SCS filled sites to the west of the Reparian Forest that are now open space reserve for wetland set-asides elsewhere on the site. ; Barbara Moss First City Developments February 29, 1988 Page 3 I hope this letter helps clarify our position for you. We look forward to working with you in developing a preliminary site plan that will satisfy these parameters and hopefully be found , to be acceptable by the other agencies and groups that will also be involved in the review process. If you have any questions please feel free to give me a call. • On Behalf of tll4/t it nmental Review Committee, D K. Erickson , -CP Zoning Administrator RN:DE:cs Blckrver • SFi .i ,i _ f ' +' a ``T `7i .. l' r.\NDRE.1 BEATTY RINU\t '.,, Director ! . STATE OF N.VASHINGTO,N DEPARTMENT OF ECOLOGY ,Mail Stop Pt'-!1 • Olympia. Washington 98504-8711 • (206) 459-6000 . December 16, 1987 • • Larry M. Springer, Director Policy Development and Ronald G. Nelson, Director Building and Zoning City of Renton 200 Mill Avenue South Renton, WA 98055 • • Re: Black River Riparian Forest/First City Equities Dear Larry and Ron: . Thank you for your letter memorializing your understanding of the information exchanged during the meeting between the city and representatives of our department, Terra Prodan and Mary Burg, on November 13 . Terra and Mary had some modifications to the summary you presented which, due to their length, are enclosed on a separate sheet. It appears that your letter is an accurate summary of the substance of that meeting. I would caution that this series of letters, yours and mine, do not constitute a "set-in-concrete" agreement, but merely our initial thoughts on what might . constitute a workable scenario far redesignation FJd ultimate ' development of the pro er y. We do believe that revised master program language redesignating shorelines consistent with the policies of your shoreline master program and the Shoreline Management Act is the best approach for all parties. However, if First City Equities should choose to proceed using the prior definition of what constitutes a natural designation on the site, as set forth in Ron Nelson's letter of March241987, then there will be no further need to pursue this effor_t, expended mainly at 1 I their request. Please let us know what you and First City Equities decide. Larry M. Springer and Ronald G. Nelson December 16, 1987 Page 2 We anticipate that the city and the developer will soon begin work, on the package of amendment/development and look forward to providing you with more detailed comments at that time. Sincerely, osep illiams Supervisor, Management Section Shorelands and Coastal Zone Management Program JRW/tp A:miti Enclosure (_ ( ENCLOSURE _ Comments to letter of November 30, 1987 Page 2 . "trading off. . . " Please note that we did not mean to trade off wetlands in the sense of forgetting about acreage de- stroyed in exchange for acreage remaining as wetland in other portions of the site. We meant that replacement, i.e. , re-creation of lost wetland. acreage of natural designation, may occur on other areas of the site, for example, the eastern, now urban-designated, portion of the site adjacent to the heron rook- ery. It is important to note here that we are concerned with no net loss of acreage that was in the natural designation, and as we pointed out, this is a minimum requirement. Page 3 . (c) should read: "Mitigation for wetland losses includ- ing the wetlands lost in the eastern portion of the property which was not placed under a stop work order by Ecology ,either on- or off-site. " (7) . should read "overlays to define the location of the acre for 1 acre. . . " Also, a third purpose, (3) , is to "define the areas which may be developed with sensitivity and those which are off-limits to development" . B through E were meant to present Ecology's criteria for determin- ing areas off-limits to development. C. should read "RED defines that area set as a limit by the City of Renton Hearing Examiner on the adjoining First City Equities parcel, SP-100-86, which pos- sesses many of the same resources and constraints and is therefore likely to be set as a condition on this parcel: that is, the line 200 feet from the ordinary high water mark of the P-i pond/Black River and within 1, 000 feet of the heron rookery as the center of a circle" . D should read "from the center of the heron rookery, to satisfy resource agency concerns" . E should read "BLUE is intended to provide diversity by re-establishing the scrub shrub and emergent vegetation type wetlands which were identified in the City of Renton Wetlands Study of 1981, which are furthermore not represented in the pre- serve area or elsewhere on the site. " Further note: "Outside all lines of any color is the area in which development of some type may be possible, subject to various mea- sures and policies; inside any of the colored lines or shaded ar- eas development is prohibited (except selected uses as trails, ponds, and the like, subject to approval by Ecology) . " - 1 - • • , 4 � 1, r • (8) . We desire to make clear that mitigation is different than making the development sensitive' to the wetlands. We use mitiga- tion in the sense of replacement of wetland losses. Both are likely to be required. Therefore, this sentence should read: " .Ecology stated that any substantial development permit must include not only mitigation for wetland losses but also must present a development that is sensitive to the wetlands. " Also, the last sentence of that paragraph should not imply that the following pages of measures and policies were proposed by Ecology but they were in fact the product of a group discussion between us and Renton. Therefore, it should read, " Ecology and the City suggested the following measures to lessen impacts to the wetland. These would meet the intent and objectives of the Shoreline Master Program and the state legislation. In addition, these could pro- vide a beginning for discussions in an amended SEPA document" . a. 3 : should read "Avoid alterations of and impacts to soils in areas not proposed for buildings; minimize such impacts in ar- eas proposed for buildings through the use of pilings and similar technology" . ? Page 4. (4) : "pervious paving" : I do not believe we presented . this. (5) : "buffer area may include" : It is also a possibility that there would be a requirement, based on comments from agencies, that the buffer would be natural undisturbed vegetation. We would not want to give the impression that the buffer could be land- scaped throughout with ornamentals. b. 1: "Mary would like to see existing blackberry bushes removed" could be eliminated since it is redundant with c. l. , "Enhance the riparian forest by low impact weed removal" . b. 2 . This condition may be imposed by the Hearing Examiner or by resource agencies. b.3 . Restricted access was discussed but we don't recall coming to a strict consensus on "no access" . In fact, we suggested that the language in the master program, under natural designation, might be amended to allow low impact uses such as trails in certain ar- eas. c.2 . Again, "nesting platforms" may have been discussed but not suggested specifically by us. c.5 This "diversity" would primarily be sought in the areas which are to be developed. We meant to imply that these measures would be desirable in the areas around buildings and roads. In fact, we suggested that anywhere that is not a building should be a wetland. Our justification for this is that almost the entire site is a wetland. - 2 One note: it was also suggested that the City investigate the possibility of trading back the area on the extreme western end of the site to the developer in return for acreage of greater habitat value. The former has been filled for several years at least and is of minimal habitat value, and at the same time is more suitable for development. Don Erickson presented his "Black River Wetland Goals and Objectives" which seem compatible with the overlay concept pre- sented by Ecology. Map: correct, except that the 200 foot shoreline zone was meant to be included for preservation/enhancement only where it is within 1000 feet of the heron rookery. This is to allow the possibility of developing the extreme west end of the site which would cause fewer impacts to the wetland and the heron rookery. The map should be modified to reflect this. - 3 - Ur- !09- o City of Renton ENVIRONMENTAL CHECKLIST PURPOSE OF CHECKLIST: The State Environmental Policy Act (SEPA), chapter 43.21C RCW, requires all governmental agencies to consider the environmental Impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify Impacts from your proposal (and to reduce or avoid impacts from the proposal, ii it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental Impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the precise information known, or give the best description you can. You must answer each question accuracy and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from you own observations or project plans without the need to hire experts. If you really do not know the answer, or if question does not apply to your proposal, write "do not know" or "does not apply." Complete answers now may avoid delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. if you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information r lated to determining if there may be significant adverse impacts. CrrYOFRO SSNNN ON OCr 1 8 1988 Environmental Checklist - City of Renton Page 1 A. BACKGROUND 1. NAME OF PROPOSED PROJECT, IF APPLICABLE: BlackRiver Corporate Park Office Facility - North Property 2. NAME OF APPLICANT: First City Developments Corp. 3. ADDRESS AND PHONE NUMBER OF APPLICANT AND CONTACT PERSON: Mark Miller or Royce Berg First City Developments C LPN Architects 800 Fifth Avenue Suite 4170 1127 Pine Street Suite 300 Seattle, WA 98104 Seattle, WA 98101 (206) 624-9223 (206) 583-8030 4. DATE CHECKLIST PREPARED: October 17, 1988 5. AGENCY REQUESTING CHECKLIST: City of Renton Building and Zoning 6. PROPOSED TIMING OR SCHEDULE (INCLUDING PHASING, IF APPLICABLE) : June 1989 to August 1993 7. DO YOU HAVE ANY PLANS FOR FUTURE ADDITIONS, EXPANSIONS, OR FURTHER ACTIVITY RELATED TO OR CONNECTED WITH THIS PROPOSAL? If yes, explain. No. None at this time. 8. LIST ANY ENVIRONMENTAL INFORMATION YOU KNOW ABOUT THAT HAS BEEN PREPARED, OR WILL BE PREPARED, DIRECTLY RELATED TO THIS PROPOSAL. EIS for Blackriver Technology Park by R. W. Thorpe and Associates, April 1983 . E.I.S. for Earlington Park by Thorpe and Associates, February 1981. See Attached References Environmental Checklist - City of Renton Page 2 9. DO YOU KNOW WHETHER APPLICATIONS ARE PENDING FOR GOVERNMENTAL APPROVALS OF OTHER PROPOSALS DIRECTLY AFFECTING THE PROPERTY COVERED BY YOUR PROPOSAL? If yes, explain. None currently covered by this proposal. 10. LIST ANY GOVERNMENTAL APPROVALS OR PERMITS THAT WILL BE NEEDED FOR YOUR PROPOSAL, if known. City of Renton Grade & Fill Permit City of Renton Site Plan Approval City of Renton Substantial Development Permit (Shoreline) City of Renton Building Permit 11. GIVE BRIEF, COMPLETE DESCRIPTION OF YOUR PROPOSAL, INCLUDING THE PROPOSED USES, AND THE SIZE OF THE PROJECT AND SITE. THERE ARE SEVERAL QUESTIONS LATER IN THIS CHECKLIST THAT ASK YOU TO DESCRIBE CERTAIN ASPECTS OF YOUR PROPOSAL. You do not need to repeat those answers on this page. Construction of seven buildings with a total of approximately 597,298 s. f. for office use on a \42 acre usable of 61.47 acre total site of BlackRiver Corporate Park. Parking for the building will be provided per code requirement. 12. LOCATION OF THE PROPOSAL. GIVE SUFFICIENT INFORMATION FOR A PERSON TO UNDERSTAND THE PRECISE LOCATION OF YOUR PROPOSED PROJECT, INCLUDING A STREET ADDRESS, IF ANY, AND SECTION, township, AND RANGE IF KNOWN. IF A PROPOSAL WOULD OCCUR OVER A RANGE OF AREA, PROVIDE THE RANGE OR BOUNDARIES OF THE SITE(S) . PROVIDE A LEGAL DESCRIPTION, SITE PLAN, VICINITY MAP, AND TOPOGRAPHY MAP, IF REASONABLY AVAILABLE. WHILE YOU SHOULD SUBMIT ANY PLANS REQUIRED BY THE AGENCY, YOU ARE NOT REQUIRED TO DUPLICATE MAPS OR DETAILED PLANS SUBMITTED WITH ANY PERMIT APPLICATIONS RELATED TO THIS CHECKLIST. The site is located north of the P-1 detention basin and south of the Burlington Northern Railroad tracks. The west tip confronts Oakesdale (Monster Road) and the east end north of Seneca Avenue Southwest. Environmental Checklist - City of Renton Page 3 B. ENVIRONMENTAL ELEMENTS 1. EARTH a. GENERAL DESCRIPTION OF THE SITE (CIRCLE ONE) ; FLAT ROLLING, HILLY, STEEP SLOPES, MOUNTAINOUS, OTHER b. WHAT IS THE STEEPEST SLOPE ON THE SITE (APPROXIMATE PERCENT SLOPE) ? 6% at any ditch area. 10% at bank area off property adjacent railroad. c. WHAT GENERAL TYPES OF SOILS ARE FOUND ON THE SITE (FOR EXAMPLE, CLAY, SAND, GRAVEL, PEAT, MUCK) ? IF YOU KNOW THE CLASSIFICATION OF. AGRICULTURAL SOILS, SPECIFY THEM AND NOTE ANY PRIME FARMLAND. The upper 5 to 13 feet is soft to stiff clayey silt. Beneath the clayey silt is loose to medium dense silts and sands with varying amounts of gravel. d. ARE THERE SURFACE INDICATIONS OR HISTORY OF UNSTABLE SOILS IN THE IMMEDIATE VICINITY? If so, describe. No. Soft and clayey silts are compressible and buildable. e. DESCRIBE THE PURPOSE, TYPE, AND APPROXIMATE QUANTITIES OF ANY FILLING OR GRADING PROPOSED. INDICATE SOURCE OF FILL. Approximately 255,400 cubic yards of fill will be required to raise the base grade above the flood plain elevation of 15 ft. as required by the rezone. Source unknown at this time. A percentage of this fill has already been placed by the City of Renton through the excavation of the P-1 channel and access at the west side of the site. f. COULD EROSION OCCUR AS A RESULT OF CLEARING, CONSTRUCTION, OR USE? If so, generally describe. Erosion could occur during a placement of fill material. However, silt fencing, sedimentation ponds and other measures will be taken to control the erosion. Environmental Checklist - City of Renton Page 4 g. ABOUT WHAT PERCENT OF THE SITE WILL BE COVERED WITH IMPERVIOUS SURFACES AFTER PROJECT CONSTRUCTION (FOR EXAMPLE, ASPHALT OR BUILDINGS)? Approximately 75% of the total area will be impervious surface, excludes areas left in Riparian Forest and greenbelts. h. PROPOSED MEASURES TO REDUCE OR CONTROL EROSION, OR OTHER IMPACTS TO THE EARTH, if any: Erosion control ditches, silt fences, and sedimentation ponds will be used to reduce or control the erosion during construction per City of Renton standards. 2 . AIR a. WHAT TYPES OF EMISSIONS TO THE AIR WOULD RESULT FROM THE PROPOSAL (i.e. , DUST, AUTOMOBILE, ODORS, INDUSTRIAL WOOD SMOKE) DURING CONSTRUCTION AND WHEN THE PROJECT IS COMPLETED? IF ANY, GENERALLY DESCRIBE AND GIVE APPROXIMATE QUANTITIES IF KNOWN. Normal emission from dust and vehicles during construction. Normal vehicular emissions after the project is completed and occupied. b. ARE THERE ANY OFF-SITE SOURCES OF EMISSION? No c. PROPOSED MEASURES TO REDUCE OR CONTROL EMISSIONS OR OTHER IMPACTS TO AIR, IF ANY: Reduce dust by sprinkling with water. 3 . WATER a. SURFACE: 1) IS THERE ANY SURFACE WATER BODY ON OR IN THE IMMEDIATE VICINITY OF THE SITE (INCLUDING YEAR-ROUND AND SEASONAL STREAMS, SALTWATER, LAKES, PONDS, WETLANDS) ? IF YES, DESCRIBE TYPE AND PROVIDE NAMES. IF APPROPRIATE, STATE WHAT STREAM OR RIVER IT FLOWS INTO. There is the year round P-1 Detention Pond to the south and a biofiltering ditch to the southeast. Environmental Checklist - City of Renton Page 5 2) WILL THE PROJECT REQUIRE ANY WORK OVER, IN, OR ADJACENT TO (WITHIN 200 FEET) THE DESCRIBED WATERS? IF YES, PLEASE DESCRIBE AND ATTACH AVAILABLE PLANS. Yes, parts of construction will be either adjacent to or within 200 feet of the P-1 Channel, and P-i Detention pond and adjacent wetlands as determined by D.O.E. 3) ESTIMATE THE AMOUNT OF FILL AND DREDGE MATERIAL THAT WOULD BE PLACED IN OR REMOVED FROM SURFACE WATER OR WETLANDS AND INDICATE THE AREA OF THE SITE THAT WOULD BE AFFECTED. INDICATE THE SOURCE OF FILL MATERIAL. None. All fill and excavation will be conducted outside of surface water areas Certain adjacent wetlands as designated by D.O.E. will be filled. Source of material is unknown at this time. 4) WILL THE PROPOSAL REQUIRE SURFACE WATER WITHDRAWALS OR DIVERSIONS? GIVE GENERAL DESCRIPTION, PURPOSE, AND APPROXIMATE QUANTITIES IF KNOWN. The proposal will require no surface water withdrawals but will alter the overland flow of runoff water due to the proposed contours and elevation changes. All waters will be collected at the shallow ponds and swales along the Riparian Forest easements to recharge the water table and biofilter the water before flowing into the P-1 detention pond. 5) DOES THE PROPOSAL LIE WITHIN A 100-YEAR FLOODPLAIN? IF SO, NOTE LOCATION ON THE SITE PLAN. Portions of proposal are below the 100-year floodplain of elevation 15 ft. The creation of P-1 Channel and P-1 Detention pond by SCS eliminated the requirement of flood ponding storage on this site. First City Developments dedicated the property for the detention pond as flooding and wildlife mitigation as well as the Riparian forest preserve. 6) DOES THE PROPOSAL INVOLVE ANY DISCHARGES OF WASTE MATERIALS TO SURFACE WATERS? IF SO, DESCRIBE THE TYPE OF WASTE AND ANTICIPATED VOLUME OF DISCHARGE. No. Environmental Checklist - City of Renton Page 6 b. Ground: 1) WILL GROUND WATER BE WITHDRAWN, OR WILL WATER BE DISCHARGED TO GROUND WATER? GIVE GENERAL DESCRIPTION, PURPOSE, AND APPROXIMATE QUANTITIES IF KNOWN. None. 2) DESCRIBE WASTE MATERIAL THAT WILL BE DISCHARGED INTO THE GROUND FROM SEPTIC TANKS OR OTHER SOURCES, IF ANY (for example: Domestic sewage; industrial, containing the following chemicals . . . ; agricultural; etc. ) . DESCRIBE THE GENERAL SIZE OF THE SYSTEM, THE NUMBER OF SUCH SYSTEMS, THE NUMBER OF HOUSES TO BE SERVED (IF APPLICABLE) , OR THE NUMBER OF ANIMALS OR HUMANS THE SYSTEM(S) ARE EXPECTED TO SERVE. No waste material will be discharged into the ground. A gravity sanitary sewer connected to existing city sewer system will serve the user of this proposal. c. WATER RUNOFF (INCLUDING STORM WATER) : 1) DESCRIBE THE SOURCE OF RUNOFF (INCLUDING STORM WATER) AND METHOD OF COLLECTION AND DISPOSAL, if any (include quantities, if known) . WHERE WILL THIS WATER FLOW? WILL THIS WATER FLOW INTO OTHER WATERS? If so, describe. Surface water will be collected by a storm drainage system and pass through sedimentation/oil/water separators before being directed to the biofiltering swales and ponds which ultimately drain into the detention basin. 2) COULD WASTE MATERIALS ENTER GROUND OR SURFACE WATERS? If so, generally describe. There will be no waste material generated by the construction. Any sediments in surface runoff will be properly detained in sedimentation facilities. The majority of sediment will be removed prior to discharge. Post construction run-off will pass through sedimentation/oil/water separators prior to discharge to receiving waters. Environmental Checklist - City of Renton Page 7 d. PROPOSED MEASURES TO REDUCE OR CONTROL SURFACE, GROUND, AND RUNOFF WATER IMPACTS, if any: Oil/water separators, silt traps in catch basins, and biofilter swales will be employed to reduce the amount of pollutants entering the P-1 Channel/pond. Sheet-flow through grassed areas and swale vegetation will act as a biofilter to remove additional contaminants prior to stormwater merging with the channel. Open ditches for collection, temporary sedimentation ponds, and erosion control fences will provide protection during construction. 4. PLANTS a. CHECK OR CIRCLE TYPES OF VEGETATION FOUND ON THE SITE: X DECI cp N ��'t�`R cottonwood , .,y llo. , Washington hawthorn EVERG E: , CEDA , , SHRUBS GRASS CROP OR GRAIN X WET SOIL CATTAIL, BUTTERCUP, BULLRUSH, SKUNK CABBAGE, OTHER WATER PLAN ATER LILY, EEL GRASS, MILFOIL, OTHER OTHER TYPES OF VEGETATION b. WHAT KIND AND AMOUNT OF VEGETATION WILL BE REMOVED OR ALTERED? All small vegetation in the proposed project site area may be removed except larger significant trees. The project site is covered primarily by grasses and shrubs. Also see #10-c of this checklist. c. LIST THREATENED OR ENDANGERED SPECIES KNOWN TO BE ON OR NEAR THE SITE. None. Environmental Checklist - City of Renton Page 8 d. PROPOSED LANDSCAPING, USE OF NATIVE PLANTS, OR OTHER MEASURES TO PRESERVE OR ENHANCE VEGETATION ON THE SITE, IF ANY: Proposed landscaping is shown on the Landscape Plan. Existing significant trees will be preserved as outlined in No. 10-c of this checklist. The landscape design will incorporate and enhance the natural Riparian forest to the south. A drainage ditch/swale enhancement program has been implemented adjacent to the forest lands. 5. ANIMALS a. CIRCLE ANY BIRDS AND ANIMALS WHICH HAVE BEEN OBSERVED ON OR NEAR THE SITE OR ARE KNOWN TO BE ON OR NEAR THE SITE: For this section Reference: Draft & Final EIS "BlackRiver Office Park 1981 and 1982" and Final EIS for Earlington Park, Feb. 1981. BIRDS: a, 'ERO ', SONGBIRDS, OTHER - sparrows, sea. . s, sucks, misc. migrating shorebirds with heron rookery near NW corner of site. MAMMALS: DEER, BEAR, ELK, BEAVER, OTHER FISH: BASS, SALMON TgOUT HERRING, SHELLFISH, OTHER - near site at P-1 channel Great blue herons south and central of the site have been proposed as a monitored species and have established a rookery. b. LIST ANY THREATENED OR ENDANGERED SPECIES KNOWN TO BE ON OR NEAR THE SITE. An immature bald eagle was sighted soaring over an adjacent site in the spring of 1987, but there is no known history of bald eagles' use of the site. c. IS THE SITE PART OF A MIGRATION ROUTE? If so, explain. The P-1 channel and pond attract migratory waterfowl and shorebirds. Environmental Checklist - City of Renton Page 9 d. PROPOSED MEASURES TO PRESERVE OR ENHANCE WILDLIFE, if any: 20 acres of BlackRiver Technology Park (adjacent to the north of the detention pond) has been retained as a preserve and riparian forest area. This area provides natural habitat for any wildlife in the area. Future development includes adding new trees and landscaping to BlackRiver Corporate Park and additional landscaping will extend existing preserves in the developments. Special native vegetation plantings will be added along the drainage swales of this proposal by The Mitchell Nelson Group and Rex Van Wormer (Landscape Architect and Botanist, respectively) . This area amounts to an average of an additional 50' wide buffer along the forest easements. 17 acres of the Valley 405 Business Park south of this proposal have been deeded to the City of Renton to provide wildlife habitat and flood control for the P-1 Channel and detention pond. First City Developments would implement timing for control of outdoor construction within 600 ft. of the Heron Rookery to be exclusive of March 1 to June 15, or when Heron fledglings leave nests so as not to disturb the herons during nesting season. Proposed erosion control and post-construction runoff control techniques will mitigate water quality impacts to fish and other aquatic life. The proposed buildings close to the rookery are sited to screen the heron Rookery from the activities in the parking lot. Existing significant trees will be preserved on site where feasible. The project landscaping design will incorporate and enhance the preserve areas. The parking areas between the buildings will be heavily buffered from the swale areas. Environmental Checklist - City of Renton Page 10 6. ENERGY AND NATURAL RESOURCES a. WHAT KINDS OF ENERGY (ELECTRIC, NATURAL GAS, OIL, WOOD STOVE, SOLAR) WILL BE USED TO MEET THE COMPLETED PROJECT'S ENERGY NEEDS? DESCRIBE WHETHER IT WILL BE USED FOR HEATING, MANUFACTURING, etc. Use of gas and electric power for heat, lights and air conditioning. b. WOULD YOUR PROJECT AFFECT THE POTENTIAL USE OF SOLAR ENERGY BY ADJACENT PROPERTIES? If so, generally describe. no c. WHAT KINDS OF ENERGY CONSERVATION FEATURES ARE INCLUDED IN THE PLANS OF THIS PROPOSAL? LIST OTHER PROPOSED MEASURES TO REDUCE OR CONTROL ENERGY IMPACTS, if any: Meets Washington State Energy Code requirements 7. ENVIRONMENTAL HEALTH a. ARE THERE ANY ENVIRONMENTAL HEALTH HAZARDS, INCLUDING EXPOSURE TO TOXIC CHEMICALS, RISK OF FIRE AND EXPLOSION, SPILL, OR HAZARDOUS WASTE, THAT COULD OCCUR AS A RESULT OF THIS PROPOSAL? If so, describe. no 1) DESCRIBE SPECIAL EMERGENCY SERVICES THAT MIGHT BE REQUIRED. No special emergency services required or anticipated beyond what is already available. 2) PROPOSED MEASURES TO REDUCE OR CONTROL ENVIRONMENTAL HEALTH HAZARDS, if any: None required or anticipated Environmental Checklist - City of Renton Page 11 b. NOISE 1) WHAT TYPES OF NOISE EXIST IN THE AREA WHICH MAY AFFECT YOUR PROJECT (for example: traffic, equipment, operation, other) ? Normal background traffic and construction noises from adjacent developments and street. 2) WHAT TYPES AND LEVELS OF NOISE WOULD BE CREATED BY OR ASSOCIATED WITH THE PROJECT ON A SHORT-TERM OR A LONG-TERM BASIS (for example: traffic, construction, operation, other) ? Indicate what hours noise would come from the site. Short term: Construction and affiliated traffic noises from normal working hours between 7 a.m. to 5 p.m. Long term: Normal traffic noises. 3) PROPOSED MEASURES TO REDUCE OR CONTROL NOISE IMPACTS, if any: • None. 8. LAND AND SHORELINE USE a. WHAT IS THE CURRENT USE OF THE SITE AND ADJACENT PROPERTIES? Site: Vacant undeveloped property South: P-i detention pond, riparian forest and existing Phase III office development. North: Burlington Northern railroad tracks. b. HAS THE SITE BEEN USED FOR AGRICULTURE? If so, describe. Not in recent past C. DESCRIBE ANY STRUCTURES ON THE SITE. None d. WILL ANY STRUCTURES BE DEMOLISHED? If so, what? no Environmental Checklist - City of Renton Page 12 e. WHAT IS THE CURRENT ZONING CLASSIFICATION OF THE SITE? OP f. WHAT IS THE CURRENT COMPREHENSIVE PLAN DESIGNATION OF THE SITE? MP/MO-0 g. IF APPLICABLE, WHAT IS_ THE CURRENT SHORELINE MASTER PROGRAM DESIGNATION OF THE SITE? Urban along P-1 Channel and proposed development. Riparian forest easements are designated natural and are not to be developed. h. HAS ANY PART OF THE SITE BEEN CLASSIFIED AS AN ',ENVIRONMENTALLY SENSITIVE, AREA? If so, specify. D.O.E. interpretation of adjacent wetlands has placed parts of the site under their review. No work is proposed in designated Natural areas. All proposed development is in designated urban areas by the City of Renton. i. APPROXIMATELY HOW MANY PEOPLE WOULD RESIDE OR WORK IN THE COMPLETED PROJECT? Approximately 5,973 at the project completion, based on maximum allowable occupancy. j . APPROXIMATELY HOW MANY PEOPLE WOULD THE COMPLETED PROJECT DISPLACE? None k. PROPOSED MEASURES TO AVOID OR REDUCE DISPLACEMENT IMPACTS, if any: n/a 1. PROPOSED MEASURES TO ENSURE THE PROPOSAL IS COMPATIBLE WITH EXISTING AND PROJECTED LAND USES AND PLANS, if any: Compliance with land use plan and use is compatible with adjacent uses and with comprehensive plan and zoning designation and rezone mitigations. Environmental Checklist - City of Renton Page 13 9. HOUSING a. APPROXIMATELY HOW MANY UNITS WOULD BE PROVIDED, if any? INDICATE WHETHER HIGH, MIDDLE, OR LOW-INCOME HOUSING. None b. APPROXIMATELY HOW MANY UNITS, IF ANY, WOULD BE ELIMINATED? INDICATE WHETHER HIGH, MIDDLE, OR LOW-INCOME HOUSING. None c. PROPOSED MEASURES TO REDUCE OR CONTROL HOUSING IMPACTS, IF ANY: n/a 10. AESTHETICS a. WHAT IS THE TALLEST HEIGHT OF ANY PROPOSED STRUCTURE(S) , NOT INCLUDING ANTENNAS; WHAT IS THE PRINCIPAL EXTERIOR BUILDING MATERIAL(S) PROPOSED. Plus or minus 80 feet plus screen for roof mounted equipment. The exterior will be glass and painted composite building panels. b. WHAT VIEWS IN THE IMMEDIATE VICINITY WOULD BE ALTERED OR OBSTRUCTED? None c. PROPOSED MEASURES TO REDUCE OR CONTROL AESTHETIC IMPACTS, if any: Existing significant trees have been incorporated within the Master Plan. Existing mature trees influenced locations of buildings, parking, and circulation paths. Large existing trees with weak form, severe storm damage, dying of old age with broken tops and decaying branches, or pose a safety hazard will be removed. Environmental Checklist - City of Renton Page 14 11. LIGHT AND GLARE a. WHAT TYPE OF LIGHT OR GLARE WILL THE PROPOSAL PRODUCE? WHAT TIME OF DAY WOULD IT MAINLY OCCUR? Lights from parking lighting and exterior building lights at night time. b. COULD LIGHT OR GLARE FROM THE FINISHED PROJECT BE A SAFETY HAZARD OR INTERFERE WITH VIEWS? no C. WHAT EXISTING OFF-SITE SOURCES OF LIGHT OR GLARE MAY AFFECT YOUR PROPOSAL? none d. PROPOSED MEASURES TO REDUCE OR CONTROL LIGHT AND GLARE IMPACTS, if any: Control light dispersion from pole lights and building lighting to prevent on-site and off-site glare. 12. RECREATION a. WHAT DESIGNATED AND INFORMAL RECREATIONAL OPPORTUNITIES ARE IN THE IMMEDIATE VICINITY? Fort Dent Park and Longacres racetrack are near. b. WOULD THE PROPOSED PROJECT DISPLACE ANY EXISTING RECREATIONAL USES? If so, describe. no c. PROPOSED MEASURES TO REDUCE OR CONTROL IMPACTS ON RECREATION, INCLUDING RECREATION OPPORTUNITIES TO BE PROVIDED BY THE PROJECT OR APPLICANT, if any: Horseshoe cortyards and jogging and foot trails are proposed with sequential exercise stations. Paths to be open to public. Environmental Checklist - City of Renton Page 15 13. HISTORIC AND CULTURAL PRESERVATION a. ARE THERE ANY PLACES OR OBJECTS LISTED ON, OR PROPOSED FOR, NATIONAL, STATE, OR LOCAL PRESERVATION REGISTERS KNOWN TO BE ON OR NEXT TO THE SITE? If so, generally describe. no b. GENERALLY DESCRIBE ANY LANDMARKS OR EVIDENCE OF HISTORIC, ARCHAEOLOGICAL, SCIENTIFIC, OR CULTURAL IMPORTANCE KNOWN TO BE ON OR NEXT TO THE SITE. None. Archaeological dig was sponsored by First City Equities and conducted and completed by the University of Washington in 1981 on property to the south of this proposal (S.E. ) . An archaeological excavation of a prehistoric Indian living site, sponsored by First City was conducted by the University of Washington in 1981. Significant artifacts were removed for study and a report was compiled (James C. Chatters, Project Director, January 15, 1982 . Interim report on excavations at Earlington Park to Department of Anthropology and Museum of Man, Central Washington University) . The Project Director also indicated no further study was required and that construction and development would not damage the archaeological value of the site but would, in fact, preserve it by not disturbing it further (letter from Chatters to David Schuman, May 12, 1981) . c. PROPOSED MEASURES TO REDUCE OR CONTROL IMPACTS, if any: None. The archaeological investigation was concluded. 14. TRANSPORTATION a. IDENTIFY PUBLIC STREETS AND HIGHWAYS SERVING THE SITE, AND DESCRIBE PROPOSED ACCESS TO THE EXISTING STREET SYSTEM. SHOW ON SITE PLANS, if any. Direct access to S.W. 7th Street, Naches Avenue S.W. and Oakesdale Avenue S.W. , ultimately to Interstate 405 with on/off ramps at Rainier Avenue S. to the East and Interurban, via Oakesdale and S.W. Grady Way to the west. Emergency access is provided on an existing road to the west. Environmental Checklist - City of Renton Page 16 b. IS SITE CURRENTLY SERVED BY PUBLIC TRANSIT? IF NOT, WHAT IS THE APPROXIMATELY DISTANCE TO THE NEAREST TRANSIT STOP? No. Approximately 3/4 miles to public transit with new transit stops being considered by Metro as entire Park develops. c. HOW MANY PARKING SPACES WOULD THE COMPLETED PROJECT HAVE? HOW MANY WOULD THE PROJECT ELIMINATE? Plus or minus 2,747 stalls provided. None eliminated. d. WILL THE PROPOSAL REQUIRE ANY NEW ROADS OR STREETS, OR IMPROVEMENTS TO EXISTING ROADS OR STREETS, NOT INCLUDING DRIVEWAYS? IF SO, GENERALLY DESCRIBE (indicate whether public or private) . Naches, 7th and Oakesdale are all completed at this time with curbs, gutters and sidewalks. The extension of Naches will be a private road built to City standards and the existing road to the west will be paved as a trail and an emergency vehicle path. All roads were programmed to accommodate development of 996, 000 S.F. for this area, of which the proposal is substantially less. e. WILL THE PROJECT USE (OR OCCUR IN THE IMMEDIATE VICINITY OF) WATER, RAIL, OR AIR TRANSPORTATION? If so, generally describe. No. f. HOW MANY VEHICULAR TRIPS PER DAY WOULD BE GENERATED BY THE COMPLETED PROJECT? IF KNOWN, INDICATE WHEN PEAK VOLUMES WOULD OCCUR. Daily Trip Rate: 21 vehicle trips/1000 s.f. 12,543 daily trips PM Peak Hour: 2.4 vehicle trips/1000 s. f. 1,433 vehicle trips/PM peak hour Environmental Checklist - City of Renton Page 17 Based on Trip Generation and Informational Report, 3rd Edition, published in 1982 by the Institute of Transportation Engineers. Also reference Traffic Impact Analysis for Valley 405 Business Park, August 1985, by the Transpo Group and traffic analysis for Black River Corporate Park June 1986 by Transpo. Note project totals have reduced. g. PROPOSED MEASURES TO REDUCE OR CONTROL TRANSPORTATION IMPACTS, if any: Proximity to bus line and other developments to incorporate car pooling and transit bus use. The Transportation Management Plan for the BlackRiver Corporate Park is in place between First City and Metro. 15. PUBLIC SERVICES a. WOULD THE PROJECT RESULT IN AN INCREASED NEED FOR PUBLIC SERVICES (FOR EXAMPLE: FIRE PROTECTION, POLICE PROTECTION, HEALTH CARE, SCHOOLS, OTHER) ? If so, generally describe. Project will require normal fire protection and police protection already serving the area. b. PROPOSED MEASURES TO REDUCE OR CONTROL DIRECT IMPACTS ON PUBLIC SERVICES, if any. This project will be provided with fire sprinkler systems as required, building and parking lights for security and fire lanes for emergency vehicle access. 16. UTILITIES a. C . I = = . • - - L ILA !!cT ''I' : CTR U ' - 4:2r , EFUSE SERVIC TELEPHONE =ANITAR = TIC , ER. 1 Environmental Checklist - City of Renton Page 18 b. DESCRIBE THE UTILITIES THAT ARE PROPOSED FOR THE PROJECT, THE UTILITY PROVIDING THE SERVICE, AND THE GENERAL CONSTRUCTION ACTIVITIES ON THE SITE OR IN THE IMMEDIATE VICINITY WHICH MIGHT BE NEEDED. Electric power, gas, water, sewer, telephone. All utilities require extension to the site and exist at Naches Avenue. C. SIGNATURES I, THE UNDERSIGNED, STATE THAT TO THE BEST OF MY KNOWLEDGE THE ABOVE INFORMATION IS TRUE AND COMPLETE. IT IS UNDERSTOOD THAT THE LEAD AGENCY MAY WITHDRAW ANY DECLARATION OF NON-SIGNIFICANCE THAT IT MIGHT ISSUE IN RELIANCE UPON THIS CHECKLIST SHOULD THERE BE ANY WILLFUL MISREPRESENTATION OR WILLFUL LACK OF FULL DISCLOSURE ON MY PART. Proponent: Aelle 10( Name Printed: ._R / -0 . B- ,'N Architects - Plannsers See attached list of documents relating to project site. SPECIFIC REFERENCE FOR PROJECT SITE Blackriver Corporate Park (North Section) (property) 1. Rezone: City of Renton, File No. R-057-080. 2 . E.I.S. for Blackriver Office Park by Thorpe & Associates, April 1981. Draft E.I.S. , April 1982 . Final E.I.S. 3 . Grading and Fill a) Renton Grading & Fill Permit: Application No. SP-024-86, Permit No. B-12251, issued. b) Washington State, Department of Natural Resources, Permit No. F.P. 09-10246 for Forest Practice, issuance date: 3/29/87. 4. City of Renton Wetlands Study, 1981, unadopted. 5. Letters from Corps of Engineers noting property not subject to the Clean Water Act, Section 404 jurisdiction; December 16, 1985 and March 4, 1987. 6. U.S. Army Corps of Engineers File Report regarding Wetlands , Determination. 7. Department of Ecology, Wetlands Determination dated April 27, 1987. 8. Traffic analysis for Blackriver Corporate Park (property) June 1986 by Transpo. 9. Letter from City of Renton dated 29 February 1988 referencing Blackriver Corporate Park, north half constraints proposed for development (From Zoning Administrator Defining Natural Areas and Urban Areas) SPECIFIC REFERENCE - GENERAL AREA 1. ADMAC Building (adjacent site to east current submittals relate to Rivertech Corporate Center) : a) . Renton Site Plan Approval Application No. SA-057-86, approved. b) Renton Building Permit Application No. 4236, expired. c) Renton Variance Application to extend Naches cul-de-sac, No. V-058-86, rejected. (Private road approved by Hearing Examiner) . 2 . Grading & Fill for Valley 405 Business Park: a) City of Renton Grading & Fill Permit Application No. SP-100-86, approved. Appeal decision by City Council 14 September 1987. b) Renton Shoreline Permit Application No. SM-004-87, withdrawn. c) Environmental Checklist No. ECF-024-87. 3 . P-1 Channel, City of Renton: a) Renton Shoreline Application No. SM-093-81, approved and issued. b) Renton Special Permit No. SP-060-81. 4. Valley 405 Business Park (Earlington Industrial Park) : a) Renton Shoreline Application No. SM-91-81. b) Preliminary and Final Plat - WA Technical Center Plat. c) E.I.S. for Earlington Industrial Park February 1981 by Thorpe & Associates. 5. Oakesdale L.I.D. , City of Renton: a) Renton Shoreline Application No. SM-004-81, approved and issued. 6. Traffic Analysis for Blackriver Corporate Park (Valley 405 Business Park) dated August 1985 by Transpo. MISCELLANEOUS REFERENCES 1. Shipe, S.J. and W.W. Scott. 1981. The Great Heron in King County. Washington Game Department, Non-Game Program. With letter of February 12, 1987. 2 . Letter of Independent Ecological Services to First City Equities of January 31, 1987, pertaining to the Heron Rookery. 3. Letter from Barbara Moss of FCE to Don Erickson of City of Renton dated April 10, 1987, regarding Shoreline Designation, with memo from David Morency to Barbara Moss, dated April 13, 1987. i r . -., -1 ,r - 0398Z CITY OF RENTON Building & Zoning Department (206) 235-2550 SHORELINE MASTER APPLICATION APPLICATION FOR: OFFICE USE ONLY: Application No. : S11- /01 -68 III' SUBSTANTIAL DEVELOPMENT ECF No. : 101435 PERMIT _ SEC-TWP-R: (_I CONDITIONAL USE PERMIT Date Approved: I I VARIANCE Date Denied : _ Publication Date: _ " I_I EXEMPTION Comprehensive Plan: I_I REVISION Zoning: Water Body: STAFF USE ONLY -- ADMINISTRATIVE PROCESSING PLANT_ _DIVISION u RENTON Application Received By: Date Rece rA D] Application Determined To Be: OCT 1 8 1988 o Accepted o Incomplete g C 2 0 V 2 Notification Sent On: L5 By (Initials) : Date Routed: Additional Material Received by: Application Determined To Be: o Accepted o Incomplete Notification Sent On: By ( Initials) : In addition to the information below, the applicant should include a site map and any other pertinent information which will assist in the review of this application. The Building and Zoning Department reserves the right to require additional information needed to evaluate the application. APPLICANT TO PROVIDE INFORMATION REQUIRED IN ITEMS 1-10 THROUGH 14-16 BELOW: INFORMATION: 1. Applicant Owner X Purchaser Name: First City Developments Corp. Lessee Other Mailing 800 Fifth Avenue, Suite 4170 Address Seattle, WA 98104 Phone: (206) 624-9223 2_ Name of PROJECT INFORMATION: 4 . General location of proposed project (give street address if any or nearest street and intersection) North of Interstate 405, North of P-1 Detention Pond, East of Monster Road, South of Burlington Northern Railroad. 5 . Legal Description (if lengthy, attach as separate sheet) : See_,attached 6 . Name of adjacent water area or wetlands: P-1 Channel and P-1 Detention Pond and Adjacent Wetlands. 7. Current use of property and existing improvements: The property is vacant with no existing improvements other than clearing and grading. ' 8 . PROPOSED USE OF PROPERTY and proposed improvements (be specific) : Proposed improvements consist of approximately 597,298 S.F. of_ office and high- tech flex space in seven (7) structures , one 3-level parking garage and a private extension Naches Avenue S.W. 9 . Proposed construction costs and schedule: A. Total construction cost and fair market value of proposed project include additional developments contemplated but not included in this application: $30,201,095 Construction Cost; $54,000,000 Fair Market Value B. Construction dates (month/year) for which permit is requested : Begin June 1989 End August 1993 (approximately) 10. List any other permits for this project from state, federal , local governmental agencies or the City of Renton for which you have applied or will apply, including the name of the issuing agency, whether the permit has been applied for, and if so, the date of the application, whether the application was approved or denied and the date of same, and number of the application or permit : City of Renton Site Plan Approval , Application to concide with the Shoreline Application City of Renton Grade and Fill Permit City of Renton Building Permit ITEMS 11, 12, AND 13 TO BE COMPLETED BY LOCAL OFFICIAL: 11. NATURE OF THE EXISTING SHORELINE. (Describe type of shoreline, such as marine, stream, lake, lagoon, marsh, bog, swamp, flood plain, floodway, delta; type of beach, such as accretion, erosion, high bank, low bank, or dike; material, such as sand, gravel, mud, clay, rock, riprap; and extent and type of bulkheading, if any) : 12. In the event that any of the proposed buildings or structures will exceed a height of thirty-five (35) feet above the average grade level, indicate the approximate location of and number of residential units, existing and potential, that will have an obstructed view. 13 . If the application involves a conditional use or variance, set forth in full that portion of the master program which provides that the proposed use may be a conditional use, or, in the case of a variance, from which the variance is being sought. ITEMS 14, 15, AND 16 TO BE PROVIDED BY APPLICANT: 14 . If applying for a variance or a conditional use, complete the variance or conditional use form. 15 . Project Maps : Attach to application accurate site plan and vicinity maps . Refer to application instruction handout for map requirements. 16 . Additional information (If necessary, attach as separate sheet) : STATE OF WASHINGTON SS CITY OF RENTON I I, Mark Miller , being duly sworn-, certify that I am the above-named applicant for a permit to con- struct a substantial development pursuant to the Shoreline Management Act of 1971, and that the foregoing statements, answers, and information are in all respects true and correct to the best of my knowledge and belief . Wif/4-416 Signature Subscribed and sworn to me this ` I' ` ` day of • � "'• Ali Notary Public i a d''for..- tire`=:Stair of Wash' gton residiy a-: • FORM 177 • BUSH, RUED & HITCHINGS, INC. NEW PARCEL 3 THAT PORTION OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SOUTHEAST QUARTER WITH THE. NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1099.78 FEET; THENCE NORTH 1°45'00" EAST 400.00 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 88°15'00". WEST 350.00 FEET; THENCE NORTH 71°42'49" WEST 218.86 FEET; THENCE NORTH 12°19'12" WEST 109.81 FEET; THENCE SOUTH 71°22'34" WEST 174.45 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 650.00 FEET THE RADIUS POINT OF WHICH BEARS SOUTH 67°05'58" WEST; THENCE NORTHWESTERLY ALONG SAID CURVE 174.47 FEET; THENCE NORTH 39°14' 15" EAST 453. 11 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1165.09 FEET , THE RADIUS POINT OF WHICH BEARS SOUTH 39° 14 ' 15" WEST ; THENCE SOUTHEASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 267.97 FEET; THENCE SOUTH 37°35'03" EAST 308.70 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 1005.37 FEET A DISTANCE OF 248.54 FEET TO A POINT WHICH BEARS NORTH 1°45'00" EAST. FROM THE TRUE POINT OF BEGINNING.; THENCE SOUTH 1°45'00" WEST 18.89 FEET TO THE TRUE POINT OF BEGINNING,, CONTAINING 5.7505 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES OVER THAT PORTION DESCRIBED AS FOLLOWS; COMMENCING AT THE MOST WESTERLY CORNER THEREOF; THENCE SOUTHERLY ALONG THE WESTERLY LINE OF THE ABOVE DESCRIBED MAIN TRACT 174.47 FEET TO THE SOUTHERLY LINE THEREOF AND THE TRUE POINT OF BEGINNING; THENCE NORTH 71°22'34" EAST ALONG SAID SOUTHERLY LINE 144.45 FEET; THENCE NORTH 12°19' 12" WEST 60.87 FEET; THENCE SOUTH 71°22'34" EAST 157 FEET TO SAID WESTERLY LINE; THENCE SOUTHERLY ALONG. SAID WESTERLY LINE TO THE TRUE POINT OF BEGINNING. lo. 7aX �a. /3?/ '# - 7988 FIRST CITY DEVELOPMENT CORP. APRIL 19, 1988 ARTHUR L. HITCHINGS AlQ L.NITC4;- BRH JOB NO. 86114.04 (: ' PLANNING DIVISION SURV. 20A Q� �oF A�"�= J CITY OF RENTON • l OCT 18 1988 , ��'.: z o E C II W+ `s�v G S7CR T/ � '�. °yac �at+� s O Yi BUSH, RvtD & HITCHINGS, INC. NEW PARCEL 4: THAT PORTION OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON AND TRACT 25, RENTON SHORELANDS 2ND SUPPLEMENTAL DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SOUTHEAST QUARTER WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1 ,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT WITH A RADIUS OF 853.34 FEET A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 140.57 FEET; THENCE SOUTH 71°22'34" WEST 413.75 FEET; THENCE SOUTH 31°14'05" WEST 358.99 FEET; THENCE SOUTH 47°09'50" EAST 71.33 FEET; THENCE EAST 114.27 FEET; THENCE SOUTH 68.91 FEET TO THE NORTH LINE OF THE SOUTH 650.00 FEET OF SAID SECTION 13; THENCE SOUTH 88°15'00" EAST ALONG SAID NORTH LINE 454.26 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.8319 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID ' CENTERLINE. t 7 X /. //Z 30r` FIRST CITY DEVELOPMENTS CORP. APRIL 19, 1988 ARTHUR L. HITCHINGS BRH JOB NO. 86114.04 SURV. 20A HIT ltr w J 2 ��''' FGISTEFE� k�►►1� N.sri $`1 ►�► ''� �yAl WAD jo, BUSH, RUED & HITCHINGS, INc. NEW PARCEL 5: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: BEGINNING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13 WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 2080.77 FEET; THENCE NORTH 68.91 FEET; THENCE WEST 114.27 FEET; THENCE NORTH 47°09'50" WEST 71.33 FEET; THENCE NORTH 31°14'05" EAST 358.99 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 42°06'08" WEST 215.00 FEET; THENCE SOUTH 80°04'48" WEST 232.00 FEET; THENCE NORTH 12°01 '00" WEST 40.75 FEET; THENCE SOUTH 77°59'00" WEST 133.03 FEET; THENCE ON A CURVE TO THE RIGHT HAVING A RADIUS OF 230.00 FEET A DISTANCE OF 111 .56 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 160.00 FEET A DISTANCE OF 197.73 FEET; THENCE SOUTH 82°15'00" WEST 67.68 FEET; THENCE SOUTH 31°32'22" WEST 71.06 FEET; THENCE NORTH 81°11'35" WEST 47.50 FEET TO A POINT OF A CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 52°42'12" EAST; THENCE EASTERLY ALONG SAID CURVE 1359.12 FEET TO A POINT WHICH BEARS NORTH 71°22'34" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 71°22'34" WEST 239.30 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 6.3831 ACRES, TOGETHER WITH AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS; BEGINNING AT THE MOST EASTERLY CORNER OF THE ABOVE DESCRIBED TRACT; THENCE NORTH 71°22'34" EAST ALONG AN EXTENSION OF THE SOUTHERLY LINE THEREOF 144.45 FEET; THENCE NORTH 12°19' 12" WEST 60.87 FEET; THENCE SOUTH 71°22'34" WEST 157 FEET TO THE NORTHEASTERLY LINE OF THE ABOVE DESCRIBED TRACT; THENCE SOUTHEASTERLY ALONG SAID NORTHEASTERLY LINE TO BEGINNING, ALSO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A.DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 325.81 i FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. ,�''� "' �O. �x m• �31�0��,9oyd As7: OF A FIRST CITY DEVELOPMENTS CORP. ( ;:APRIL 19, 1988 o ARTHUR L. HITCHINGS ;. , k'BRH JOB NO. 86114.04 TZpni FCISTEi"`' 'Z•1/4 9 SURV. 20A zr 4i L;.N'� f 111 BUSH, RUED & HITCHINGS. INC. NEW,PARCEL 6 THAT PORTION OF THE SOUTHEAST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE OF SAID SECTION 13, A DISTANCE OF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26 OF RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS, ACCORDING TO THE UNRECORDED PLAT THEREOF; THENCE SOUTH 72°37'52" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 382.60 FEET; THENCE NORTH 70°54'02" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 73.51 FEET TO THE EAST LINE OF THE CHARLES BROWNELL DONATION LAND CLAIM NO. 41; THENCE NORTH 01°24'04" EAST ALONG SAID EAST LINE 498.15 FEET; THENCE SOUTH 81°11 '35" EAST 119.19 FEET TO A POINT ON CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 52°42' 12" EAST; THENCE NORTHEASTERLY ALONG SAID CURVE 538.45 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUE ALONG SAID CURVE 646.21 FEET; THENCE NORTH 39°14' 15" EAST 453. 11 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1 ,165.09 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°14'15" WEST; THENCE WESTERLY ALONG SAID CURVE AND SOUTHERLY LINE 829.08 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,814.93 FEET A DISTANCE OF 79.20 FEET TO A POINT WHICH BEARS NORTH 1°24'04" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 1°24'04" WEST 365.48 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 7.1029 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH' SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. Co, 7?, c' i 321 d fo'z w � 4F � •F A FIRST CITY DEVELOPMENTS CORP. f';l/if1('1t REV. MAY 4, 1988 n „ems`',;►I o ARTHUR L. HITCHINGS z BRH JOB NO. 86114.04 • ��'M-°,?1' SURV. 20A . ' E'GISTES ' rim•11 yAI LM gglPj BUSH. RUED & HITCH INGS, 1Nc. NEW PARCEL 7: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE OF SAID SECTION 13, A DISTANCE OF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26 OF RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS, ACCORDING TO THE UNRECORDED PLAT THEREOF; THENCE SOUTH 72°37'52" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 382.60 FEET; THENCE NORTH 70°54'02" WEST ALONG THE SOUTH BOUNDARY OF SAID TRACT 26, A DISTANCE OF 73.51 FEET TO THE EAST LINE OF THE CHARLES BROWNELL DONATION LAND CLAIM NUMBER 41; THENCE NORTH O1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°24'04" EAST ALONG SAID EAST LINE 509.58 FEET TO THE SOUTH LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT- OF-WAY; THENCE EASTERLY ALONG SAID SOUTH LINE AND ON A CURVE HAVING A RADIUS OF 2,814.93 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 14°57'22" EAST, A DISTANCE OF 580.22 FEET; THENCE SOUTH 1°24'04" WEST 365.48 FEET TO A POINT OF A CURVE HAVING A RADIUS OF 650.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 5°14'26" EAST; THENCE WESTERLY ALONG SAID CURVE 538.45 FEET TO A POINT WHICH BEARS SOUTH 81°11'35" EAST FROM THE TRUE POINT OF BEGINNING; THENCE NORTH 81°11'35' WEST 119.19 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.8480 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS , OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. _ Co ��x moo. z3� 90 z� _ " I,� �� FIRST CITY DEVELOPMENTS CORP. " ` REV. MAY 4, 1988 ; .� ARTHUR L. HITCHINGS / ti 1 BRH JOB NO. 86114.04 CiSTEn, SURV. 20A sr; C..;'` Nn( 00 '4111 BUSH, rwED & HITCHINGS, INC. NEW PARCEL 8 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13; TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST ALONG SAID SOUTH LINE 73.51 FEET TO THE EAST LINE OF SAID C.E. BROWNELL'S LAND DONATION LAND CLAIM NO. 41; THENCE NORTH 1°24104" EAST ALONG SAID EAST LINE 498.15 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 81°11'35" WEST 26.31 FEET; THENCE SOUTH 82°15'00" WEST 92.99 FEET; THENCE SOUTH 35°29'30" WEST 143.18 FEET; THENCE NORTH 74°44'00 WEST 84.85 FEET; THENCE SOUTH 60°16'00" WEST 67.00 FEET; THENCE SOUTH 12°16'00" EAST 97.35 FEET; THENCE SOUTH 68°06'46" WEST 110.53 FEET; THENCE NORTH 12°16'00" WEST 140.00 FEET; THENCE NORTH 19°41'48" EAST 80.00 FEET; THENCE NORTH 0°41'48" EAST 240.00 FEET; THENCE NORTH 26°45'10" WEST 154.31 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 1768.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 26°45'10" EAST; THENCE EASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 157.52 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 8603.00 FEET A DISTANCE OF 204.54 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,922.10 FEET A DISTANCE OF 178.79 FEET TO THE EASTERLY LINE OF SAID C.E. BROWNELL'S DONATION CLAIM NO. 41; THENCE SOUTH 1°24'04" WEST 509.59 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.5110 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS; THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34' FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19' 12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00. FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. Alo. 37792o-G//7:t;'Y f r�7 y• �. FIRST CITY DEVELOPMENTS CORPd REV. MAY 4, 1988 r <�la ARTHUR L. HITCHINGS • I .f ,.' } BRH JOB NO. 86114.04 4+ ;.1• 1 SURV. 20A '"�s ��''iSTE�j ,•i�i��� 0 r `• V=;r ''it ltit,:• y}e i } BUSH, RVCD & HITCHINGS, INC. NEW PARCEL 9 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13; TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST ALONG SAID SOUTH LINE 73.51 FEET TO THE EAST LINE OF SAID C.E. BROWNELL'S DONATION CLAIM NO. 41; THENCE NORTH 1°24'04" EAST ALONG SAID EAST LINE 498.15 FEET; THENCE NORTH 81°11'35" WEST 26.31 FEET; THENCE SOUTH 82°15'00" WEST 92.99 FEET; THENCE SOUTH 35°29'30" WEST 143. 18 FEET; THENCE NORTH 74°44'00 WEST 84.85 FEET; THENCE SOUTH 60°16'00" WEST 67.00 FEET; THENCE SOUTH 12°16'00" EAST 97.35 FEET; THENCE SOUTH 68°06'46" WEST 110.53 FEET TO THE TRUE POINT OF BEGINNING; THENCE SOUTH 68°06'46" WEST 265.00 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 195.01 FEET, THE RADIUS POINT OF WHICH BEARS WEST; THENCE NORTHWESTERLY ALONG SAID CURVE 267.83; THENCE NORTH 78°41'24 WEST 117.64 FEET; THENCE NORTH 1°24'04" ' EAST 200.97 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 10,543.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 36°50'42" EAST; THENCE NORTHEASTERLY ALONG SAID CURVE AND SOUTHERLY LINE 93.53 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,657.00 FEET A DISTANCE OF 193.93 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 6,738.00 FEET A DISTANCE OF 197.76 FEET TO A COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1,768.00 FEET A DISTANCE OF 36.93 FEET; THENCE SOUTH 26°45'10" EAST 154.31 FEET; THENCE SOUTH 0°41 '48" WEST 240.00 FEET; THENCE SOUTH 19°41'48" WEST 80.00 FEET; THENCE SOUTH 12°16 '00" EAST 140.00 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.3332 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: 1 1' COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. ,e.r.,,r,-._.. (v. 7;2e No. 37792o - 0/18 %� �' • •;FIRST CITY DEVELOPMENTS CORP. ;,\ ) EV. MAY 4, 1988 •( 1 ARTHUR L. HITCHINGS '� -'' j;•� / $RH JOB NO. 86114.04 "di �� '• ;SURV. 20A BUSH, RC.cD & HITCHINGS, INc. NEW PARCEL 10 THAT PORTION OF THE SOUTHWEST QUARTER OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON AND THAT PORTION OF JUNCTION ADDITION TO CITY OF SEATTLE, ACCORDING TO PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF SAID KING COUNTY, TOGETHER WITH VACATED STREETS ADJOINING WHICH I WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW, AND OF C.E. BROWNELL'S DONATION CLAIM NO. 41, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST 354.53 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 73°56'O1" WEST 130.08 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 41°16'07" WEST ALONG THE SOUTH LINE OF SAID TRACT 26 A DISTANCE OF 316.18 FEET TO A POINT ON THE NORTH BOUNDARY OF A TRACT OF LAND DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°41'39" WEST; THENCE WESTERLY ALONG SAID CURVE AND NORTH BOUNDARY 373.11 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°24'04" EAST 582.36 FEET TO A POINT ON THE SOUTHERLY LINE OF THE BURLINGTON NORTHERN RAILROAD RIGHT-OF-WAY, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 10543.00 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 36°50'42" EAST; THENCE WESTERLY ALONG SAID CURVE AND SAID SOUTHERLY LINE 92.98 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 1 ,853.00 FEET A DISTANCE OF 194.75 FEET TO A POINT OF COMPOUND CURVE, THE CENTER OF SAID CURVE BEARS SOUTH 43°22'19" EAST 4,030.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE LEFT, THROUGH A CENTRAL ANGLE OF 2°48'32", AN ARC DISTANCE OF 197.57 FEET TO A POINT OF TANGENCY; THENCE SOUTH 43°49'09" WEST ALONG SAID SOUTH MARGIN 271.00 FEET TO A POINT OF CURVE; THENCE ON A CURVE TO THE RIGHT ALONG SAID SOUTHERLY MARGIN, HAVING A RADIUS OF 1,571.00 FEET, THROUGH A CENTRAL ANGLE OF 7°32°02", AN ARC DISTANCE OF 206.57 FEET TO A POINT OF COMPOUND CURVE, THE CENTER WHICH BEARS NORTH 38°38'49" WEST 727.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE RIGHT, THROUGH A CENTRAL ANGLE OF 16°55'35", AN ARC DISTANCE OF 214.77 FEET TO A POINT OF COMPOUND CURVE, THE CENTER WHICH BEARS NORTH 21°43'14" WEST 1,055.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE .TO THE RIGHT, THROUGH A CENTRAL ANGLE OF 11°24'08", AN ARC DISTANCE OF 209.95 FEET TO A POINT OF COMPOUND CURVE THE CENTER OF WHICH BEARS NORTH 10°19'06" WEST 696.00 FEET; THENCE WESTERLY ALONG SAID SOUTHERLY MARGIN AND CURVE TO THE RIGHT THROUGH A CENTRAL ANGLE OF 3°44'25", AN ARC DISTANCE OF 45.43 FEET TO THE EASTERLY MARGIN OF THE CHARLES MONSTER COUNTY ROAD; THENCE SOUTH 34°19 ' 34" EAST ALONG SAID EASTERLY MARGIN 43.56 FEET TO THE NORTH BOUNDARY OF SAID TRACT DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786 THENCE NORTH 74°13'19" EAST ALONG SAID NORTH BOUNDARY 443.81 FEET; THENCE NORTH 59°53'47" EAST ALONG SAID NORTH BOUNDARY 377.52 FEET; THENCE EAST ALONG SAID NORTH BOUNDARY 280.69 FEET; THENCE SOUTH ALONG SAID NORTH BOUNDARY 25.00 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH; THENCE EASTERLY ALONG SAID CURVE AND NORTH BOUNDARY 61 . 59 FEET TO THE TRUE POINT OF BEGINNING, CONTAINING 5.0046 ACRES, TOGETHER WITH AND SUBJECT TO AN EASEMENT FOR INGRESS, EGRESS AND UTILITIES DESCRIBED AS FOLLOWS: BUSH, Rt,.:D & HITCHINGS, INC. NEW PARCEL 10 - PAGE 2 THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M. , IN KING COUNTY, WASHINGTON, LYING WITHIN 30 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE: COMMENCING AT THE INTERSECTION OF THE EAST LINE OF SAID SECTION 13, WITH THE NORTH LINE OF THE SOUTH 650.00 FEET THEREOF, SAID NORTH LINE BEING ALSO THE NORTH LINE OF WASHINGTON TECHNICAL CENTER AS RECORDED IN VOLUME 122 OF PLATS, PAGES 98 THROUGH 102, RECORDS OF SAID COUNTY; THENCE NORTH 88°15'00" WEST ALONG SAID NORTH LINE 1,626.50 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 1°45'00" EAST 225.00 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 853.34 FEET, A DISTANCE OF 209.55 FEET; THENCE NORTH 12°19'12" WEST 325.81 FEET; THENCE ON A CURVE TO THE LEFT HAVING A RADIUS OF 600.00 FEET A DISTANCE OF 803.66 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS , OF 2,745.00 FEET A DISTANCE OF 1 ,916. 19 FEET TO THE TERMINUS OF SAID CENTERLINE. ' 1 D 7;lx- A/o, 311y7o - oiip FIRST CITY DEVELOPMENTS CORP. /0 ': REV. MAY 4, 1988 4  ' : ARTHUR L. HITCHINGS 0; iff L 0. 1BRH JOB NO. 86114.04 /,14 ' '} , .2i .p SURV. 20A 4 V�iO,:tr�M�:l:I BUSH, Rt,cD & HITCHINGS, INc. REMAINDER THAT PORTION OF THE SOUTH HALF OF SECTION 13, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN; AND THAT PORTION OF JUNCTION ADDITION TO THE CITY OF SEATTLE, AS PER PLAT RECORDED IN VOLUME 12 OF PLATS, PAGE 75, RECORDS OF KING COUNTY; TOGETHER WITH VACATED STREETS ADJOINING WHICH WOULD ATTACH TO SAID PREMISES BY OPERATION OF LAW; AND OF CHARLES BROWNELL'S DONATION CLAIM NO. 41 AND OF THAT PORTION OF TRACTS 25 AND 26, RENTON SHORELANDS 2ND SUPPLEMENTAL, DESCRIBED AS FOLLOWS: COMMENCING AT THE SOUTH QUARTER CORNER OF SAID SECTION 13; THENCE NORTH 00°58'28" EAST ALONG THE NORTH-SOUTH CENTERLINE THEREOF 884.84 FEET TO THE SOUTHEAST CORNER OF TRACT 26, RENTON SHORELANDS SECOND SUPPLEMENTAL MAPS 1958 AND THE TRUE POINT OF BEGINNING; THENCE SOUTH 72°37'52" WEST 382.60 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE NORTH 70°54'02" WEST 354.53 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 73°56'O1" WEST 130.08 FEET TO AN ANGLE POINT IN THE SOUTH LINE OF SAID TRACT 26; THENCE SOUTH 41°16 '07" WEST ALONG THE SOUTH LINE OF SAID TRACT 26 A DISTANCE OF 316.18 FEET TO A POINT ON THE NORTH BOUNDARY OF A TRACT OF LAND DEEDED TO KING COUNTY AND DESCRIBED UNDER KING COUNTY RECORDING NUMBER 6607786, SAID POINT BEING ON A CURVE HAVING A RADIUS OF 627.46 FEET, THE RADIUS POINT OF WHICH BEARS SOUTH 39°41 '39" WEST; THENCE WESTERLY ALONG SAID CURVE AND NORTH BOUNDARY 373.11 FEET; THENCE NORTH 1°24'04" EAST 381.39 FEET; THENCE SOUTH 78°41'24" EAST 117.64 FEET; THENCE ON A CURVE TO THE RIGHT HAVING A RADIUS OF 195.01 FEET A DISTANCE OF 267.83 FEET; THENCE NORTH 68°06'46" EAST 375.53 FEET; THENCE NORTH 12°16'00" WEST 97.35 FEET; THENCE NORTH 60°16'00" EAST 67.00 FEET; THENCE SOUTH 74°44'00" EAST 84.85 FEET; THENCE NORTH 35°29'30" EAST 143.18 FEET; THENCE NORTH 82°15'00" EAST 92.99 FEET; THENCE SOUTH 81°11'35" EAST 193.00 FEET; THENCE NORTH 31°32'22" EAST 71.06 FEET; THENCE NORTH 82°15'00" EAST 67.68 FEET TO A POINT ON A CURVE HAVING A RADIUS OF 160.00 FEET, THE RADIUS POINT OF WHICH BEARS NORTH 86°34'52" EAST; THENCE SOUTHEASTERLY ALONG SAID CURVE 197.73 FEET TO A POINT OF COMPOUND CURVE; THENCE ON A CURVE HAVING A RADIUS OF 230.00 FEET A DISTANCE OF 111.56 FEET; THENCE NORTH 77°59'00" EAST 133.03 FEET; THENCE SOUTH 12°O1'00" EAST 40.75 FEET; THENCE NORTH 80°04'48" EAST 232.00 FEET; THENCE SOUTH 42°06'08" EAST 215.00 FEET.; THENCE SOUTH 31°14'05" WEST 358.99 FEET; THENCE SOUTH 47°09'50" EAST 71 .33 FEET; THENCE EAST 114.27 FEET; THENCE SOUTH 68.91 FEET TO THE SOUTHERLY LINE OF SAID TRACTS 25 AND 26; THENCE NORTH 88°15'00" WEST ALONG SAID SOUTHERLY LINE 180. 64 FEET; THENCE NORTH 33°07 ' 25" WEST ALONG SAID SOUTHERLY LINE 154.51 FEET; THENCE NORTH 27°21'32" EAST ALONG SAID SOUTHERLY LINE 387.32 FEET; -THENCE NORTH 83°17'25" WEST ALONG SAID SOUTHERLY LINE 171.17 FEET; THENCE SOUTH 46°22'2201 WEST ALONG SAID SOUTHERLY LINE 324.66 FEET; THENCE SOUTH 72°37'52" WEST ALONG SAID SOUTHERLY LINE 76.33 FEET TO THE TRUE POINT OF BEGINNING. SITUATE IN THE CITY OF RENTON, COUNTY OF KING, STATE OF WASHINGTON. .41 Co Tsx 4% 37771 ) oi/ � J FIRST CITY DEVELOPMENTS CORP. ' V REV. MAY 18, 1988 °;,l ARTHUR L. HITCHINGS ;,1 :.;f $RH JOB NO. 86114.04 yr ' ,p ,. URV. 20A , • CERTIFICATION OF NOTIFICATION OF ADJACENT PROPERTY OWNERS/SITE PLAN * * *FOR OFFICIAL USE ONLY* * * PROJECT TITLE: APPLICANT: APPLICATION NUMBER: SA - /06) 65 • The following is a list of adjacent property owners and their addresses. A notification of the pending site plan application shall be sent to these individuals as prescribed by Renton City Code, Chapter 7 Section 38 of Title IV (Building Regulations) of Ordinance No. 1628 relating to site plan approval. • ASSESSOR'S NAME ADDRESS PARCEL NUMBER .Newburn, Lloyal L. 315 27th N.E. East 132304 9006 Wenatchee, WA 98801 132304 9010 377920 0010 377920 0053 377920 0056 ' 377920 0120 Hughs , L.P. & Mary 8865 Overlake Dr. 377920 0170 Bellevue, WA 98004 Blackriver Quarry 6808 S. 140th St. 377920 0150 Seattle, WA 98178 722950 0320 Hawk, James L. , Sr. 6808 S. 140th St. 377920 0005 Seattle, WA 98178 Union. Pacific Corp. P.O. Box 2500 377920 0160 (Burlington Northern Railroad) . Bloomfield,_,C0 80020 DA ' C&P S RY Co. 4-4-Rey No Address Given 132304 9020 (Burlington Northern Railroad) by King County ),00 FiRsr ,A/7 RSr/fT 'f'vr7R Assessor 9qq •r!i-'0 44. S&A A44 '9 P L/ Sunpoint Associates, Ltd. 520 Pike Tower 132304 9025 Suite 2300 Seattle, WA 98104 King County 500 A King County 132304 9079 Admin. Bldg. 377920 0090 Seattle, WA 98104 PLANNINGCITY D � �FP.O14 . fO? 0cr i 8 lobo • ASSESSOR'S NAME ADDRESS PARCEL NUMBER City of Renton 200 Mill Ave. S. 911800 0150 Renton, WA 98055 First City Developments Corp. 800 5th Avenue 918800 0140 Suite 4170 • • Seattle, WA 98104 • • CERTIFICATION • I. Paul R,: Coppock hereby certify that the above list(s) of adjacent property owners and their addresses were taken from the records of the King County Assessor as prescribed by law. ATTEST: Subscribed and sworn to before me, a Notary Public, in and for the State of Washington residing at/r1- i/. on • ;, ` ''.. • . ; „ the /7Tft day of a,3 ,lam_ .,�0.aWv vtl� SIGNED: s • CERTIFICATION OF MAILING I. �r� ', hereby certify that notices of the public meeting on the subject site plan approval were 'mailed on a, (,, 1.759 , to each listed adjacent property owner as prescribed by law. ATTEST: Subscribed and sworn to before me. a Notary Public. i and for the State of Washington residi, g1_ at y on the day of .1f _•-- I fj e ,/. .t' • C� g __ SIGNED: I( . c� FORM 208 ' FINA NVIRONMENIA MPACT STAT ', MENT BLACKRIVER CORPORA1E PARK TRAcrs A AND B MICROFILMED OFucE BUILDINGS CORRECTED IS SUE City of Renton 200 Mill Avenue South Renton, Washington 98055 Prepared by: tr Jones & Stokes Associates,Inc. Bellevue, Washington March 1991 •. - CITY OF RENTON 1 :�; . Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttman,Administrator May 10, 1991 SUBJECT: Black River Corporate Park, Phases VII/VIII Final Environmental Impact Statement Dear Recipient/Party of Interest: The Black River Final Environmental Impact Statement included a section on cumulative impacts, reflecting the potential for development of several projects in the vicinity of the Corporate Park. These projects included the projected expansion of the Metro Wastewater Treatment Facility. The Draft Environmental Impact Statement for this project was released just prior to the Black River FEIS. The Final EIS included erroneous information which necessitates a revision. This letter documents that revision. Attached, please find an errata sheet for this item. If you have any questions, please do not hesitate to call 235-2550. Donald K. Erickson,AICP Principal Planner 200 Mill Avenue South - Renton, Washington 98055 ERRATA SHEET Please substitute the following paragraph for Paragraph 3, page 3-62 in the Final Environmental Impact Statement, Black River Corporate Park, Phases VII/VIII. Offensive odors could occasionally be generated from the treatment facility and extend beyond the boundaries of the site, even with Metro's proposed odor control plan. These odors most likely would come from mechanical failures, emergencies or system upsets, or, infrequently, unusual circumstances during day-to-day operations. These odors have the greatest potential for crossing Tracts A and B when the prevailing winds are from the south and southwest. CITY OF .RENTON Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttman,Administrator April 4, 1991 • Dear Interested Party: Due to a possible collation problem at the printer's, the FEIS you received may have been incorrectly put together. To reduce any possible confusion this may cause, we are sending corrected copies to you for your further review. We ask that you dispose of the original copy you received. You will kindly note that the new document has a different colored cover. Thank you for your forbearance. Since there has already been time for review,the comment period time will not change on this. LL . Donald K. Erickson,AICP Zoning Administrator 200 Mill Avenue South - Renton, Washington 98055 CITY OF RENTON Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttman,Administrator • March 27, 1991 • Dear Interested Party: This letter is notification that the Environmental Review Committee •(ERC), designated as the SEPA responsible official for the City of Renton, Issued the Final Environmental Impact Statement (FEIS) for the Black River Corporate Park, Tracts A and B on March 27, 1991. The proponent is applying for a Building Permit, a Shoreline Substantial Development Permit, a Clearing, Grading and Filling Permit, Site Plan Approval,and a Routine Vegetation Removal Permit. The FEIS augments the Draft EIS by providing additional research and findings, publishing and answering letters received on the Draft, providing additional mitigation, and incorporating by reference a number of documents. These documents, listed below with an asterisk (*), may be viewed at the Renton Public Library, Main Branch, 200 Mill Avenue South, Renton, 98055. All others are available at the Metro Library, Exchange Building, 821 Second Ave. Seattle,98104-1598. 1974. Auburn Interceptor EIS *1980. U.S. Environmental Protection Agency - Wastewater Management Plan for the Lake Washington/Green River Basins,EIS and Appendices. Report No.910/9-80-077 1981. U.S. Environmental Protection Agency-Final EIS on the Wastewater Management Plan for the Lake Washington/Green River Basins. 1983. Draft Supplemental EIS for the Puget Sound Facilities Engineering Report. 1983. Final Supplemental EIS on the Puget Sound Facilities Engineering Report 1983. U.S. Environmental Protection Agency-Municipality of Metropolitan Seattle/Draft and Final EISs,Sludge Management Plan. *1984. Final Supplemental EIS on the Renton Effluent Transfer System Alternative for the Wastewater Management Plan, Lake Washington/Green River Basins. 1984. Public Comments on the Draft Supplemental EIS on the Renton Effluent Transfer System Alternatives for the Wastewater Management Plan,Lake Washington/Green River Basins. *1985. Draft EIS on the Plan for the Secondary Treatment Facilities and Combined Sewer Overflow Control. *1985. Final EIS on the Plan for the Secondary Treatment Facilities and Combined Sewer Overflow Control. 1986. Final Supplemental EIS for Secondary Facilities and Combined Sewer Overflow Control. 1988. Final Supplemental EIS for West Point Secondary Treatment Facilities. 200 Mill Avenue South - Renton, Washington 98055 CITY OF RENTON NEWS RELEASE NOTICE OF FEIS ISSUANCE Description of Agency Action: Environmental Review Committee (ERC) issued the Final Environmental Impact Statement on March 27, 1991 on the Black River Corporate Park, Phases VII and VIII (ECF;SA;SM-071-88 & ECF;SA-109-88). 'ERC will issue a mitigation measures document on the above project based on information from the DEIS and FEIS on April 1990 and March 1991. Description of Proposal: TRACT A The proposal includes phased construction of three office buildings ranging in height from one to four stories. These buildings would provide 183,600 square feet of space. Surface parking would accommodate approximately 800 autos. TRACT B The proposal includes phased construction of three office buildings ranging in height from three to seven stories. - These buildings would provide 286,200 square feet of space. Surface parking would accommodate approximately 500 autos and another 800 stalls would be provided in a three story parking structure Location of Proposal: The project site is located on Oakesdale Avenue. Type of SEPA Review: Declaration of Significance, SEPA Scoping, Draft EIS, Public hearing on DEIS, Anal EIS. Documents may be examined during regular business hours at Development Services, Third Floor, Municipal Building,200 Mill Avenue South. LEAD AGENCY: City of.Renton Department of Planning/Building/Public Works Development Planning Section APPEAL Any appeal as to the adequacy of the Draft and Final Environmental Impact Statements, pursuant to WAC 197- 11-68 must be consolidated with an appeal on the agency's decision on the proposed action. The mitigation document Is this agency's decision which may be appealed together with the FEIS. These appeals may be filed with the Hearing Examiner, City of Renton, by 5:00 PM, 20 days after the issuance of the mitigation document. FINAL ENVIRONMENTAL IMPACT STATEMENT FOR BLACKRIVER CORPORATE PARK, TRACTS A AND B OFFICE BUILDINGS CITY OF RENTON, WASHINGTON For the Review and Comment of Citizens, Citizens Groups, and Government Agencies In Compliance With The State Environmental Policy Act of 1971 Chapter 42.21c, Revised Code of Washington and Revised SEPA Guidelines, Effective April 4, 1989 Chapter 197-11, Washington Administrative Code Date of Issue: March-37 , 1991 I FACT SHEET Title Blackriver Corporate Park, Tracts A and B Office Buildings Description of Construct as a four-year phased project, 3 one- to four-story proposal and office buildings on 12.07 acres of Tract A and 3 four- to alternatives seven-story buildings on the 15.7-acre Tract B, Renton, WA. Tract B will also include the construction of a three-story parking structure. Tract A. Alternatives analyses include: • Alternative A-1 -Tract A Proposed Action. Construction of a single-story 23,600 square foot building in 1991-92; and two four-story 80,000 square foot buildings in 1993-94 and 1994-95; and • Alternative A2 - No Action Tract B • Alternative B1 - Tract B Proposed Action. Construction of a 71,000 square foot four-story office building in 1991-92; construction of a 58,600 square foot three-story office building in 1992-93; and construction of a 156,600 square foot office building and three-story parking structure in 1993-95; • R 1 • Alternative B2 - Construction of one seven-story office building (285,000 square feet) and a four-story parking structure; and • Alternative B3 - No Action. n . Location of site City of Renton, King County History of Proposal History of proposal presented in Section 2.3 of the April 1990 Draft EIS with supplemental information provided in Section 2.3 of this Final EIS. Appendix B presents a history of the heron colony. Key historical events include: • 1979 - Property purchased by First City Development Corporation and zoned General (G); i ti i • Property rezoned to Manufacturing Park (MP) with conditions for rezone approval (see Section 2.3 of this FEIS for conditions); • 1984 - P-1 Pond excavated; • October 1986 - Property rezoned to Office Park (OP); • August 1988 - Phase VII (Tract B) site plan submitted to City and City determined need for EIS; • October 1989 Phase VIII (Tract A) added to EIS; • April 1990 - Draft EIS issued; Public hearingon DEIS; • May 1, 1990 - Pub c , • Comment period for DEIS extended from May 11, 1990 to May 28, 1990; and • March 1991 Final EIS issued. Proposal's sponsor First City Developments Corporation Date of Schedule is tentative pending decision on EIS and site plan implementation review. Lead agency City of Renton Responsible official City of Renton Environmental Review Committee Contact person Donald K. Erickson, AICP Zoning Administrator Planning/Public Works/Building Department (206) 235-2550 Attn: Mary Lynne Myer List of possible permit, Building Permit approval, and license Shoreline Substantial Development Permit requirements Clearing, Grading, and Filling Permit I Clean Water Act - Section 404 Authors and principal Jones & Stokes Associates, Inc. contributors to DEIS 2820 Northup Way, Suite 100 Bellevue, Washington 98004 U DB Associates, Inc. 401 Second Avenue South Suite 220 Seattle, Washington 98104-2883 INCA Engineers, Inc. 11120 N.E. 2nd Street Bellevue, Washington 98004 The Transpo Group, Inc. 14715 Bel-Red Road, Suite 100 Bellevue, Washington 98007 Subsequent environmental Supplemental analysis could be required if significant change review occurs in the proposal or if new information about impacts is identified. Such review could include Determinations of Significance,preparation of Addenda or Supplemental EISs, or preparation of new EISs. Location of background Jones & Stokes Associates, Inc. information. 2820 Northup Way, Suite 100 Bellevue, WA 98004 (206) 822-1077 Cost of copy $10.00 to public iii DISTRIBUTION LIST Federal U. S. Environmental Protection Agency Region X U. S. Army Corps of Engineers U. S. Fish and Wildlife Service U. S. Soil Conservation Service State Department of Ecology (SEPA Register) Department of Natural Resources Department of Wildlife Department of Transportation Department of Social and Health Services Office of Archaeology and Historic Preservation Office of Public Archaeology, University of Washington Puget Sound Water Quality Authority Regional Metro - Water Quality Division Metro - Transit Puget Sound Air Pollution Control Agency Puget Sound Council of Governments Seattle - King County Department of Public Health Seattle - King County Commuter Pool Local Government King County Department of Public Works, Surface Water Management Division King County Building and Land Development Division SEPA Information Center King County Parks, Planning, and Resources Department; Attn: Erik Stockdale King County Soil and Water Conservation District iv City of Renton Mayor; Attn: Mayor's Assistant City Council Hearing Examiner's Office Planning Commission Parks Board Public Works Department Parks and Recreation Department Police Department Fire Department City Attorney SEPA Information Center Planning and Community Development Department Utilities/Services Puget Sound Power and Light Company _ Washington Natural Gas Company Pacific Northwest Bell Libraries/School Districts Renton Public Library - Main Branch (3) • Renton Public Library - Highlands Branch (2) University of Washington Library, College of Arch. and Urban Planning King County Public Library System Renton School District No. 403 Newspapers Seattle Times - Eastside,Edition Seattle Post-Intellegencer Daily Journal of Commerce Valley Daily News v Journal American ram_ Private Organizations and Others Greater Renton Chamber of Commerce 1, City of Kent Muckleshoot Tribe Duwamish Tribe City of Tukwila Seattle Audubon Society Nature Conservancy Friends of the Earth Sierra Club f r 1 h II vi ELEMENTS OF THE ENVIRONMENT DISCUSSED IN THIS FINAL EIS 1 (1) NATURAL ENVIRONMENT (a) Earth -- (i) Geology Reviewed (ii) Soils Reviewed (iii) Topography N/A (iv) Unique physical features N/A (v) Erosion/enlargement of land area (accretion) N/A (b) Air (i) Air quality Reviewed (ii) Odor , (iii) Climate (c) Water (i) Surface water movement/quantity/quality Reviewed (ii) Runoff/absorption Reviewed (iii) Floods N/A , (iv) Groundwater movement/quantity/quality Reviewed (v) Public water supplies N/A (d) Plants and animals Reviewed (i) Habitat for and numbers or diversity of species of plants, fish or other wildlife (ii) Unique species Reviewed (iii) Fish or wildlife mitigation routes Reviewed (e) Energy and natural resources N/A , -- (i) Amount required/rate of use/efficiency (ii) Source/availability (iii) Nonrenewable resources - (iv) Conservation and renewable resources (v) Scenic Resources , (2) BUILT ENVIRONMENT (a) Environmental health (i) Noise Reviewed (ii) Risk of explosion N/A ' (iii) Potential releases to the environment Reviewed vii 1 , affecting public health, such as toxic or hazardous materials (b) Land and shoreline use (i) Relationship to existing land use plans Reviewed and to estimated population (ii) Housing N/A (iii) Light and glare Reviewed (iv) Aesthetics N/A (v) Recreation N/A (vi) Historical and cultural preservation Reviewed (vii) Agricultural crops N/A (c) Transportation (i) Transportation systems Reviewed (ii) Vehicular traffic (iii) Waterborne, rail, and air traffic (iv) Parking (v) Movement/circulation of people and goods (vi) Traffic hazards (d) Public services and utilities (i) Fire (ii) Police (iii) Schools (iv) Parks and other recreational facilities Reviewed (v) Maintenance (vi) Communications (vii) Water/storm water (viii) Sewer/solid waste (ix) Other governmental services or utilities viii Table of Contents Page Chapter 1. Summary 1-1 1.1 Introduction and Background 1-1 1.2 Overview of Events 1-1 13 Proposed Action and Alternatives 1-5 1.3.1 Tract A 1-7 1.3.2 Tract B (Phase VII) 1-7 1.4 Applicant's Objectives 1-9 1.5 Impacts and Mitigation Measures 1-9 1.6 Adverse Impacts that Cannot be Mitigated 1-30 1.6.1 Tracts A and B 1-30 Chapter 2. Description of Proposed Action and Alternatives 2-1 2.1 Introduction 2-1 2.2 Supplemental Project Area Information 2-2 23 Supplemental Information on Project History 2-5 2.4 Project Need 2-8 2.5 Description of the Proposed Action 2-8 2.5.1 Tract A 2-9 2.5.2 Tract B 2-11 2.5.3 Mitigation Measures 2-13 Chapter 3. Supplemental Description of Affected Environment, Significant Impact and Mitigation Measures 3-1 3.1 Introduction 3-1 3.2 Earth Resources 3-1 3.2.1 Topography/Soils 3-1 3.2.2 Foundation 3-6 3.2.3 Seismic 3-7 3.3 Air 3-7 3.3.1 Air Quality 3-7 3.4 Water 3-8 3.4.1 Surface Water Movement/Quantity 3-8 3.4.2 Water Quality/Runoff 3-10 3.5 Terrestrial Resources 3-13 3.5.1 Vegetation 3-13 3.5.2 Shoreland/Wetlands 3-15 3.5.3 Wildlife Resources 3-17 3.5.4 Unique Terrestrial Resources 3-20 3.6 Environmental Health 3-26 ix 3.6.1 Noise 3-26 3.62 Hazardous Waste 3-30 3.7 Land and Shoreline Use 3-31 3.7.1 Relationship to Existing Land Uses 3-31 3.7.2 Relationship to Plans, Zoning and Shorelines 3-32 3.73 Light and Glare 3-46 3.7.4 Historic and Cultural Resources 3-47 3.8 Transportation 3-48 3.8.1 Traffic 3-48 3.9 Public Services and Utilities 3-52 3.9.1 Parks and Other Recreational Facilities 3-52 3.10 Cumulative Impact 3-53 Chapter 4. Comment Letters and Responses to Comment Letters Chapter 5. Citations 5-1 ' 5.1 Literature Cited 5-1 5.2 Personal Communications 5-4 Appendix A. Zoning Code Excerpts and Overview of Comprehensive Plan, Green River Plan, Zoning Ordinances and Development Standards, Land Clearing and Tree Cutting Ordinance - Refer to Draft EIS for this appendix. Appendix B. Revised Life History and Effects of Human Disturbance on Great Blue Heron Colonies. Appendix C. Noise Monitoring Data - July 20, 1990 Geotechnical Drilling. Appendix D. Foundation and Seismic Analysis - Refer to Draft EIS for this appendix. Appendix E. Supplemental Air Quality Information. Appendix F. Hazardous Waste Study (Complete Report Available for Review at City of Renton Planning Division. Appendix G. Inventory of Flora and Fauna. Appendix H. Transportation Management Plan Blackriver Corporate Park Trip Generation Analysis. Appendix I. Flood Storage and Stormwater Detention - Tracts A and B. x List of Figures Figure Page 1-1 Regional Map 1-3 1-2 Project Location, Proposed Development of Tracts (Phase VII) and B, Blackriver Corporate Park, Renton, WA 1-4 1-3 Location of Tracts A and B, Blackriver Corporate Park, Renton, WA 1-6 2-1 Land Ownership in the Vicinity of Project Area 2-3 2-2 Wetlands on Tracts A and B an Adjacent Areas 2-4 2-3 Historic (1977) Conditions (Pre P-1 Pond Construction) on Tracts A and B. Blackriver Corporate Park 2-6 2-4 Alternative Al - Site Plan for Proposed Action 2-10 2-5 Alternative B1 - Site Plan for Proposed Action 2-12 2-6 Alternative B2 - Seven Story Building With Parking Structure 2-14 3-1 Tract A Illustrative Plan with Setbacks, Berming, and Building Height Limitations 3-3 3-2 Typical Cross Section of 5-foot and 10-foot High Earthen Berms Located Between the Heron Colony and Development and Along the P-1 Pond and Springbrook Creek 3-4 3-3 Tract B Illustrative Plan with Setbacks, Berming, and Building Height Limitations 3-5 3-4 Significant Environmental Features/Recommended Setbacks; _ Tracts A and B, Blackriver Corporate Park 3-22 3-5 Five Minute Leq Values (dBA) July 20, 1990 3-27 3-6 Comparison of 15-Minute Leq Values (dBA) at the Black River Heron Colony, January 23/24, 1990 and July 20, 1990 3-28 xi W List-of Tables Table Page 1-1 Environmental Elements Analyzed in Draft and Final Environmental Impact Statements and Page Location in Each Document 1-2 1-2 . Summary of Features of Tract A and B Proposed Actions 1-8 , 1-3 Summary of Impacts and Mitigation Measures for Tract A , Alternative Blackriver Corporate Park 1-10 1-4 Summary of Impacts and Mitigation Measures for Tract B Alternatives Blackriver Corporate Park 1-24 , 3-1 Comparison of Selected Pollutants in the P-1 Pond and Typical Urban Runoff to Water Quality Standards 3-12 3-2 Consistency of Proposed Actions for Tracts A and B with City of Renton Comprehensive Plan Policies 3-33 3-3 Peak Hour Vehicular Trip Generation - Tracts A and B 3-49 3-4 Daily and Nightly Peak - Hour Trip Generation Comparison 3-50 • xii Chapter 1. Summary DRAFT ENVIRONMENTAL IMPACT STATEMENT FOR BLACKRIVER CORPORATE PARK, TRACTS A AND B OFFICE BUILDINGS CITY OF RENTON, WASHINGTON For the Review and Comment of Citizens, Citizens Groups, and Government Agencies In Compliance With The State Environmental Policy Act of 1971 Chapter 42.21c, Revised Code of Washington and Revised SEPA Guidelines, Effective April 4, 1989 Chapter 197-11, Washington Administrative Code Date of Issue: April 11, 1990 FACT SHEET Title Blackriver Corporate Park, Tracts A and B Office Buildings Description of Construct as a four-year phased project, 3 one- to four-story proposal and office buildings (183,600 square feet) on 12.71 acres of Tract A alternatives and 3 four- to seven-story buildings on the 15.7-acre Tract B, Renton, WA. Tract B will also include the construction of a three-story parking structure in 1992-93. Tract A. Alternatives analyses include: • Alternative A-1 -Tract A Proposed Action. Construction of a single-story 23,600 square foot building in 1990; and two four-story 80,000 square foot buildings in 1993 and 1994;and • Alternative A2 - No Action Tract B • Alternative B1 - Tract B Proposed Action. Construction of a 71,000 square foot four-story office building in 1990; construction of a 58,600 square foot three-story office building in 1991; and construction of a 156,600 square foot office building and three-story parking structure in 1992 to 1993; • Alternative B2 - Construction of one seven-story office building (285,0.00 square feet) and a four-story parking structure; and • Alternative B3 - No Action. Location of site Renton, King County Proposal's sponsor First City Developments Corporation Date of Schedule is tentative pending decision on EIS analysis implementation Lead agency City of Renton Responsible official City of Renton Environmental Review Committee Contact person Donald K. Erickson, AICP Chief, Current Planning Department of Community Development (206) 235-2550 List of possible permit, Building Permit approval, and license Shoreline Substantial Development Permit requirements Clearing, Grading, and Filling Permit Clean Water Act - Section 404 Authors and principal Jones & Stokes Associates, Inc.: contributors to DEIS Project Management Jonathan Ives Soils, Water Quality Robert Denman Vegetation, Wetlands Dyanne Sheldon Terrestrial Resources Jonathan Ives Land Use Amy O'Leary Noise Robert Sculley Air Quality Tim Rimpo Editing Jennifer Grathwol DB Associates, Inc.: Project Alternatives Don Bazemore Scott Davidson INCA Engineers, Inc.: Foundation/Seismic Dan Russell, P.E. Date of issue of Draft April 11, 1990 Environmental Impact Statement (DEIS) Date of hearing on DEIS May 1, 1990 Date comments on the May 11, 1990 DEIS are due Tentative date of issue June 8,1990 of Final EIS - - Subsequent environmental None anticipated review Location of background Jones & Stokes Associates, Inc. information 1808 - 136th Place N.E. Bellevue, WA 98005 (206) 641-3982 Cost of copy $8.00 to public 11 DISTRIBUTION LIST Federal U. S. Environmental Protection Agency Region X U. S. Army Corps of Engineers U. S. Fish and Wildlife Service U. S. Soil Conservation Service State Department of Ecology (SEPA Register) Department of Natural Resources Department of Wildlife Department of Transportation Department of Social and Health Services Office of Archaeology and Historic Preservation Office of Public Archaeology, University of Washington Puget Sound Water Quality Authority Regional Metro - Water Quality Division Metro - Transit Puget Sound Air Pollution Control Agency Puget Sound Council of Governments Seattle - King County Department of Public Health Seattle - King County Commuter Pool Local Government King County Department of Public Works, Surface Water Management Division King County Building and Land Development Division SEPA Information Center King County Parks, Planning, and Resources Department; Attn: Erik Stockdale King County Soil and Water Conservation District 111 • City of Renton Mayor; Attn: Mayor's Assistant City Council Hearing Examiner's Office Planning Commission Parks Board Public Works Department Parks and Recreation Department Police Department Fire Department City Attorney SEPA Information Center Planning and Community Development Department Utilities/Services Renton School District No. 403 Puget Sound Power and Light Company Washington Natural Gas Company Pacific Northwest Bell Libraries Renton Public Library - Main Branch (3) Renton Public Library - Highlands Branch (2) University of Washington Library, College of Arch. and Urban Planning King County Public Library System Newspapers Seattle Times - Eastside Edition Seattle Post-Intellegencer Daily Journal of Commerce Valley Daily News Journal American iv Private Organizations and Others Greater Renton Chamber of Commerce City of Kent Indian Tribal Council City of Tukwila Seattle Audubon Society Nature Conservancy Friends of the Earth v ELEMENTS OF THE ENVIRONMENT DISCUSSED IN THIS EIS (1) NATURAL ENVIRONMENT (a) Earth (i) Geology Reviewed (ii) Soils Reviewed (iii) Topography N/A (iv) Unique physical features N/A (v) Erosion/enlargement of land area (accretion) N/A (b) Air (i) Air quality (ii) Odor t(1 pc (iii) Climate 1\j( (c) Water (i) Surface water movement/quantity/quality Reviewed (ii) Runoff/absorption Reviewed (iii) Floods N/A (iv) Groundwater movement/quantity/quality Reviewed „1 (v) Public water supplies N/A «e.�- (d) Plants and animals Reviewed (i) Habitat for and numbers or diversity of species of plants, fish or other wildlife (ii) Unique species Reviewed (iii) Fish or wildlife mitigation routes Reviewed (e) Energy and natural resources N/A —? (i) Amount required/rate of use/efficiency (ii) Source/availability (iii) Nonrenewable resources (iv) Conservation and renewable resources (v) Scenic Resources - (2) BUILT ENVIRONMENT (a) Environmental health (i) Noise Reviewed (ii) Risk of explosion N/A (iii) Potential releases to the environment N/A affecting public health, such as toxic or hazardous materials vi (b) Land and shoreline use (i) Relationship to existing land use plans Reviewed and to estimated population (ii) Housing N/A (iii) Light and glare Reviewed (iv) Aesthetics N/A (v) Recreation N/A (vi) Historical and cultural preservation Reviewed (vii) Agricultural crops N/A (c) Transportation N/A (i) Transportation systems (ii) Vehicular traffic (iii) Waterborne, rail, and air traffic (iv) Parking (v) Movement/circulation of people and goods (vi) Traffic hazards (d) Public services and utilities (i) Fire N/A (ii) Police (iii) Schools (iv) Parks and other recreational facilities (v) Maintenance (vi) Communications (vii) Water/storm water (viii) Sewer/solid waste (ix) Other governmental services or utilities vii TABLE OF CONTENTS Page CHAPTER 1. SUMMARY 1-1 1.1 Introduction and Background 1-1 1.2 Proposed Action and Alternatives 1-1 1.2.1 Tract A 1-1 Alternative Al - Proposed Action 1-1 Alternative A2 - No Action 1-3 1.2.2 Tract B (Phase VII) 1-3 Alternative B1 - Proposed Action 1-3 Alternative B2 - Single Seven-Story Building with Parking Structure 1-3 Alternative B3 - No Action 1-3 1.3 Applicant's Objectives 1-3 1.4 Impacts and Mitigation Measures 1-4 1.4.1 Tract A 1-4 Impacts 1-4 Mitigation Measures 1-4 1.4.2 Tract B 1-15 Impacts 1-15 Mitigation Measures 1-15 1.5 Adverse Impacts that Cannot be Mitigated 1-16 1.5.1 Tracts A and B 1-16 CHAPTER 2. DESCRIPTION OF THE PROPOSED ACTION AND ALTERNATIVES 2-1 2.1 Introduction 2-1 2.2 Project Area 2-2 2.3 Project History 2-2 2.4 Project Need 2-4 2.5 Description of the Proposed Action and Alternatives 2-4 2.5.1 Tract A 2-4 Alternative Al - Proposed Action 2-4 Alternative A2 - No Action 2-5 2.5.1 Tract B (Phase VII) 2-5 Alternative B1 - Proposed Action 2-5 Alternative B2 - Seven-Story Building with Parking Structure 2-5 Alternative B3 - No Action 2-6 CHAPTER 3. AFFECTED ENVIRONMENT, SIGNIFICANT IMPACTS AND MITIGATION MEASURES 3-1 3.1 Introduction 3-1 3.2 Earth Resources 3-1 3.2.1 Topography/Soils 3-1 Affected Environment 3-1 viii , Page I Impacts 3-2 Mitigation Measures 3-3 ; 3.2.2 Foundation 3-3 t Affected Environment 3-3 Impacts 3-3 Mitigation Measures 3-4 3.2.3 Seismic 3-4 Affected Environment 3-4 - Impacts 3-5 Mitigation Measures 3-5 3.3 Air 3-5 3.3.1 Air Quality 3-5 Affected Environment 3-5 Impacts 3-11 Mitigation Measures 3-17 3.4 Water 3-17 v 3.4.1 Surface Water Movement/Quantity 3-17 Affected Environment 3-17 Impacts 3-19 Mitigation Measures 3-21 3.4.2 Water Quality/Runoff 3-21 r Affected Environment 3-21 Impacts 3-23 A Mitigation Measures 3-27 3.5 Terrestrial Vegetation 3-28 3.5.1 Vegetation 3-28 Affected Environment 3-28 Impacts 3-29 Mitigation Measures 3-30 3.5.2 Wetlands 3-31 Affected Environment 3-31 Impacts 3-32 Mitigation Measures 3-32 3.5.3 Wildlife Resources 3-33 Affected Environment 3-33 Impacts 3-34 Mitigation Measures 3-36 3.5.4 Unique Terrestrial Resources 3-37 Affected Environment 3-37 Impacts 3-38 Mitigation Measures 3-43 3.6 Environmental Health 3-43 3.6.1 Noise 3-43 Affected Environment 3-43 Impacts 3-46 Mitigation Measures 3-47 ix Page 3.7 Land and Shoreline Use 3-48 3.7.1 Relationship to Existing Land Uses 3-48 Affected Environment 3-48 Impacts 3-48 Mitigation Measures 3-49 3.7.2 Relationship to Plans, Zoning and Shorelines 3-49 Affected Environment 3-49 Impacts 3-63 Mitigation Measures 3-65 3.7.3 Light and Glare 3-65 Affected Environment 3-65 Impacts 3-66 Mitigation Measures 3-66 3.7.4 Historic and Cultural Resources 3-67 Affected Environment 3-67 Impacts 3-67 3.8 Transportation 3-67 3.8.1 Traffic 3-67 Affected Environment 3-67 Impacts 3-67 3.9 Public Services and Utilities 3-68 3.9.1 Parks and Other Recreational Facilities 3-68 Affected Environment 3-68 Impacts 3-68 Mitigation Measures 3-68 CHAPTER 4. REFERENCES 4-1 4.1 Literature Cited 4-1 4.2 Personal Communications 4-2 APPENDICES A Zoning Code Excerpts and Overview of Comprehensive Plan, Green River Plan, Zoning Ordinances and Development Standards, Land Clearing and Tree Cutting Ordinance B Life History and Effects of Human Disturbance on Great Blue Heron Rookeries C Construction Noise Data D Foundation and Seismic Analysis E Air Quality Modeling x LIST OF TABLES Table Page 1-1 Summary of Features of Tract A and B Proposed Actions 1-2 1-2 Summary of Impacts and Mitigation Measures for Tract A Alternative Blackriver Corporate Park 1-5 1-3 Summary of Impacts and Mitigation Measures for Tract B Alternatives Blackriver Corporate Park 1-10 3-1 1987 Emissions in King County 3-7 3-2 Carbon Monoxide Impacts from Renton Garage Alternative B1 with One Exit Lane and 40 Percent Open Area 3-13 3-3 Carbon Monoxide Impacts from Renton Parking Garage Alternative B1 with Two Exit Lanes and 40 Percent Net Open Area 3-14 3-4 Carbon Monoxide Impacts from Renton Garage Alternative B2 with One Exit Lane and 40 Percent Open Area 3-15 3-5 Carbon Monoxide Impacts from Renton Parking Garage Alternative B2 with Two Exit Lanes and 40 Percent Open Area 3-16 3-6 Carbon Monoxide Impacts from Renton Parking Garage Alternative B1 with Two Exit Lanes and 55 Percent Net Open Area 3-18 3-7 Approximate Runoff Volumes from Tracts A and B for a 10-Year Storm, Blackriver Corporate Park, Renton, WA 3-20 3-8 Historic Water Quality Data (Mean Concentrations of Eight Sampling Dates) for the Black River and Tributaries, Renton, WA 3-22 3-9 Water Quality of Springbrook Creek and Black River During October 1980, City of Renton, WA 3-24 3-10 Metro 1987 Water Quality Data For Springbrook Creek 3-25 3-11 Results of 1989 Water Quality Sampling of Naches Avenue Drainage Swale, Blackriver Corporate Park, Renton, WA 3-26 3-12 Noise Data Summery for Black River and Peasley Canyon Rookeries 3-44 3-13 Weighted Sound Levels and Human Response 3-45 xi Page 3-14 Consistency of Proposed Actions for Tracts A and B with City of Renton Comprehensive Plan Policies 3-50 xii LIST OF FIGURES Following Figure Page 1-1 Regional Map 1-1 1-2 Project Location, Proposed Development of Tracts (Phase VII) and B, Blackriver Corporate Park, Renton, WA 1-1 1-3 Location of Tracts A and B, Blackriver Corporate Park, Renton, WA 1-1 2-1 Significant Environmental Features/Recommended Setbacks; Tracts A and B, Blackriver Corporate Park 2-3 2-2 Alternative Al - Proposed Action 2-4 2-3 Alternative Al - Landscape Plan 2-4 2-4 Alternative B1 - Proposed Action 2-5 2-5 Alternative B1 - Landscape Plan 2-5 2-6 Alternative B2 - Seven Story Building with Parking Structure 2-6 2-7 Alternative B2 - Landscape Plan 2-6 3-1 Probability of Exceedance of Peak Ground Acceleration 3-5 3-2 Carbon Monoxide Impacts - Garage Only 3-14 3-3 Carbon Monoxide Impacts - Garage Only 3-14 3-4 Carbon Monoxide Impacts - Garage Only 3-18 3-5 Carbon Monoxide Impacts - Garage Only 3-18 3-6 Carbon Monoxide Impacts - Garage Only 3-18 3-7 Hourly Average dBA Value 3-45 3-8 15-Minute dBA Levels 3-45 3-9 Construction Equipment Noise Ranges 3-46 xiii CHAPTER 1 CHAPTER 1 SUMMARY 1.1 Introduction and Background The First City Development Corporation (FCDC) is proposing to develop portions of the Blackriver Corporate Park in the City of Renton. The project site is located northwest of Renton city center and east of the Municipality of Metropolitan Seattle's (METRO) Renton Wastewater Treatment Facility (Figures 1-1 and 1-2). This Environmental Impact Statement (EIS) has been prepared to satisfy the State Environmental Policy Act(SEPA)requirements and to address environmental issues defined during the scoping process and by the City of Renton Environmental Review Committee. This chapter provides a brief summary of the proposed action,the project alternatives and the environmental impacts and mitigation measures. Chapter 2 contains a detailed description of the proposed action and alternatives, while Chapter 3 provides an analysis of project impacts and mitigation measures. 1.2 Proposed Action and Alternatives The proposed action of FCDC is to develop office buildings on that portion of the Blackriver Corporate Park known as Tracts A (12.7 acres) and B (15.7 acres) (Figure 1-3). Two alternatives, the Proposed Action and No Action are evaluated for Tract A. The proposed action for Tract A is construction of three office buildings in three phases. No Action assumes the site would remain undeveloped. Three alternatives, the Proposed Action (B1), Alternative B2, and No Action are evaluated for Tract B. The Proposed Action is development of three office buildings in three phases;Alternative B2 proposes a seven-story building and a four-story parking garage. No Action assumes the site would remain undeveloped. 1.2.1 Tract A Alternative Al (Proposed Action) The Proposed Action for Tract A is to construct three office buildings with surface parking in three phases over a four year period - Phase 1 scheduled for construction in 1990, Phase 2 in 1993, and Phase 3 in 1994. Table 1-1 presents a summary of features of the Tract A Proposed Action. See Figure 2-2 in Chapter 2 for a full description of the Proposed Action for Tract A. 1-1 Seattle 1J' Tacoma 1 • . shington vlympi. / • ........................ Bothell. i Woodinville J.Duvall ': Ki klan"� ..:.;:.:.;;:.; 99 �i .Redmond >p' : 05 s - t" .,* Carn. ion i, . - ;... > i `iimi:. Media. Bellevue e ue ......................................., ,................ fic:!.... • 1-9 0 0 1-5 111 �...... r çn e Isla ua 9 upper I Rent, J PP ta so lk _ I 11, Cedar kwila Mtn. Vashon INiiiiiiiinitiiiIiii 7 . Miiii Maple Island Aillinit P Valle y • Project Location Figure 1-1. Regional Map N43N EMPIRE WAY 11, ov r- RENTO N • . SW 7TH 5 BLACKRIVER` 0 Frove CORPORATE i# °3 WAY PARK 405 To SEA-TAC - AIRPORT 4 MILES 0 LONGACRES SOUTHCENTER ri O m > 0-I m N ED VALLEY m m GENERAL = HOSPITAL S 180TH / Figure 1-2. 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'•:: '' ;igi .e.ft..:.?fi..,:o,,. . ..44. .,.,...,,, . .,.4 41..,.k.:.••<t:.;.•:.:..•::.:..:.E.:•:.:;.:.%.14.4":0.... • . .:.:. , • .t...::':.•:.:.';,..,:::::;:exe:,.:,„. , ,:: ....,,,.,.,.., -....: 11:- ••:.:.,...4.:;.?. .*.:.:.,.., . •.:: 1 :;s:4,ij.‘:: .::::.:: ......, • .::,..:..-,=•,.. .:, ..::„ IA::. ::. ..... . .......... 'ilgittilltille 'c: )' ::: •••::: .t.:•...: >-;.:—-.' ': 0. • • - ....,:•,:17:k•••:•••.:' ''•,. . •.' -•,..•-••,:,,,..,. .;.,',.;',••••: : • ':''..'• '— r , „ .• .. ••••...., ..••••••••.• • .4.4,:.•.k. • '''.•i!S:',•; .,]i•...*.: •.;• ' -;•••; _ _ Table 1-1. Summary of Features of Tract • A and B Proposed Actions Alternatives* Al B1 B2 Project Feature (Proposed Action) (Proposed Action) (Single Building) Number of Buildings 3 (phased) 3 (phased) 1 Building Square Footage Phase 1 23,582 71,000 285,000 Phase 2 80,000 85,575 Phase 3 80,000 156,625 Building Height feet/stories Phase 1 24/1 57/4 93/7 Phase 2 57/4 45/3 Phase 3 57/4 93/7 Parking Garage 40/3 50/4 Number of People 935 1,450 • Parking Stalls 791 1,296** 1,151*** * Does not include No Action Alternatives (A2 and B3) which assumes no development of the site. ** 496 stalls on surface parking and 800 stalls in three-story parking structure (Phase 3). *** 551 stalls on surface parking and 600 stalls in four-story parking structure. 1-2 The development is intended to be consistent with the Office Park (O.P.) zoning designation of the site and with the environmental constraints and rookery protection guidelines defined for the site. Alternative A2 - No Action Under Alternative A2, the No Action Alternative, the site would not be developed and the objectives of the project applicant would not be met. The site would remain open and, with time, natural succession would result in shrubs and trees becoming dominant on the site. 1.2.2 Tract B (Phase VII) Tract B is a 15.7-acre site located east of Tract A and north of Oakesdale Boulevard (Figures 1-2 and 1-3). Two project alternatives (Alternatives B1 and B2) plus No Action (Alternative B3) were defined and evaluated in this EIS. Alternative B1 - Proposed Action Alternative B1 is the action proposed by the project applicant, FCDC. The proposal is to construct three office buildings in three phases - Phase 1 scheduled for construction in 1990, Phase 2 in 1991, and Phase 3 during 1992 and 1993. Table 1-1 presents a summary of features of the Tract B Proposed Action and Alternatives. See Figure 2-4 in Chapter 2 for description of the proposed action for Tract B. Alternative B2 - Single Seven-Story Building with Parking Structure Alternative B2 would include the construction of a single seven-story building and four-story parking garage (Table 1-1). Alternative B3 - No Action . } Under the No Action Alternative,Tract B would not be developed and the objectives of the project applicant would not be met. The site would remain in open space and vegetation would, over time, change to dense shrub and tree growth. 1.3 Applicant's Objectives The objective of the project applicant is to develop professional office space within the City of Renton that is consistent with O-P zoning. The applicant has defined a demand and need for office park space and has over the years shown an intent to develop the Blackriver Corporate Park property. 1-3 1.4 Impacts and Mitigation Measures Tables 1-2 and 1-3 present a comparison of impacts of alternatives for Tract A and Tract B. The Tables present an analyses of environmental features as discussed in detail in Chapter 3, a brief description of the impacts of each alternative on those features, and mitigation measures proposed to minimize the impacts. The following criteria were used to evaluate the impacts of the proposed actions and alternatives: • Consistency with local, state, or federal laws, or regulations, and local land use plans and policies (e.g., City of Renton ordinances and comprehensive plan; wetland regulations); • Meets or exceeds recognized quantative criteria or standards (e.g., water quality criteria for freshwater organisms; EPA noise criteria, etc.); and • Impacts on regional or statewide populations of threatened, endangered species or unique species. 1.4.1 Tract A Impacts Proposed Action. Minor filling of the site would occur with the addition of up to 10,000 cubic yards of fill. This would not represent a significant impact since the site had been previously filled. Other impacts would include increased runoff to the P-1 Pond (not a significant impact because of the capacity of the P-1 Pond is adequate to handle stormwater flows); short-term insignificant increase in sedimentation during construction; loss of 11.6 acres of grass/shrub vegetation and wildlife habitat (a significant impact that cannot be fully mitigated); increased noise caused by construction and day-to-day activities on site; increases in light and glare caused by building,and parking lighting and automobiles; and minor inconsistencies with some City of Renton Comprehensive Plan and Valley Plan policies and objectives. A summary of those impacts appears in Table 1-2. Mitigation Measures Table 1-2 presents mitigation measures for the significant impacts of Tract A development. These mitigation measures would reduce the magnitude of impacts to less than significant levels. 1-4 Table 1-2. Summary of Impacts and Mitigation Measures for Tract A Alternative - Blackriver Corporate Park Tract A Environmental Feature Al (Proposed Action) A2 (No Action) Mitigation Measures Topography/Soils No significant adverse impact - No impact No grading and filling should be done addition of up to 10,000 cubic during the period from February 15 to yards of fill; action would be June 15. consistent with Valley Plan policy since site was previously filled. Foundation No significant adverse impacts No impact None necessary anticipated- single-story building(Phase 1)to be developed with conventional to shallow foundation; Phase 2 and 3 buildings will use auger cast-in-place piles or driven piles. Seismic No significant adverse impact, No impact Design of buildings will follow UBC site has low potential for standards. liquifaction. Air Quality Not applicable, no parking No impact garage planned. Surface Water Movement No significant adverse impact No impact Drainage plan must be prepared as due to large capacity in P-1 required by City of Renton. Pond. Surface Water Quality No significant adverse impact; No impact - Prepare and submit Erosion Control assuming incorporation of Plan to City(see Section 3.4.2 for mitigation measures described details); herein. Tract A Environmental Feature Al (Proposed Action) A2 (No Action) Mitigation Measures • Install and maintain oil/water separators; and • Install biofiltration swales per WDOE standards. Vegetation No significant adverse impact - No impact • Plant native lowland trees and shrubs on 11.6 acres of grass and shrub edge of P-1 Pond and Springbrook affected; no endangered or Creek (see Section 3.5.1 for species list); threatened species. • Develop detailed planting plan and specifications; and • Participate with the City of Renton in a similar planting program with King County and SCS on land adjacent to the • P-1 Pond and Springbrook Creek. Wetlands No significant adverse impact. No impact None Necessary • Wildlife Resources Significant adverse impact that No impact • Plant and maintain a linear buffer of cannot be fully mitigated. Loss native vegetation along P-1 Pond and of 11.6 acres of terrestrial Springbrook Creek (see Section 35.1 for wildlife habitat. species list); and • Construct all buildings in earth or natural tones with non-reflective coated or tinted glass or hoods(Phase 2 and 3 only), on windows facing P-1 Pond and heron rookery. Unique Terrestrial Resources No significant adverse impact No impact • Establish a no-build zone for that to herons so long as heron portion of Tract A lying within 600 feet protection guidelines are of the nearest rookery tree; followed as listed under mitigation. Tract A Environmental Feature Al (Proposed Action) A2(No Action) Mitigation Measures • Prior to the construction of buildings, plant trees and dense vegetation at the northernmost portion of the site within no-build zone 600 feet from the nearest rookery tree; • Construct project in phases,with first phase of development furthest from the rookery; • After coniferous vegetation in the buffer zone has achieved a minimum height of 20 feet,begin construction of the Phase 2 and 3 buildings. Buildings should not exceed four-stories in height (unless I-& building is set back 1,000 feet or greater distance for the rookery); • Create dense vegetated no-build buffer along the eastern boundary of the site adjacent to Springbrook Creek to provide a vegetated ingress and egress route for herons leaving and returning to the rookery, • Construct the building in earth and natural tones;glass facing the rookery should be non-reflective, coated or tinted glass, or hooded to minimize disturbance to the birds; • Exclude human access to the P-1 Pond during the period from February 15 to June 15; and Tract A Environmental Feature Al (Proposed Action) A2(No Action) Mitigation Measures • No exterior construction activities should occur within 600 feet of the rookery during the period from February 15 to June 15. Noise Short-term significant impact No impact • Outdoor construction activities should be during construction. Most restricted to 7:00 a.m. to 8:00 p.m. significant noise would be during the summer months and 7:00 a.m caused by pile driving. Impacts to 7:00 p.m. during the winter months; can be mitigated. • All construction equipment should have sound control devices no less effective than those provided on the original equipment; • All construction equipment should ►� comply with pertinent equipment noise 0o standards of the U.S.Environmental Protection Agency, • The use of auger cast-in-place piling construction would be preferable to pile driving; • .If pile drivers are to be used, they should be modified or designed to generate peak noise levels of less than 95 dBA at 50 feet (see Appendix C for information on pile driving techniques designed to reduce noise levels);and • Limit pile driving activity to a period from August 1 through February 15,-the least sensitive time period for great blue heron use of the site. Tract A Environmental Feature Al (Proposed Action) A2(No Action) Mitigation Measures Relationship to Existing Land No significant adverse impact. No impact None necessary Use Relationship to Plans, Zoning No significant adverse impact. No impact None necessary .. and Shorelines The Proposed Action is consistent with the comprehensive plan, zoning and Shoreline Master Program setback requirements. Light and Glare Potential minor impact of light No impact - Use of downlighted light structures in from buildings and parking that the parking areas to confine light to can be mitigated. ground level; - Use of dense evergreen vegetated screen vo to reduce the effect of automobile headlights, particularly on Tract A which has no existing dense, tall-growing vegetation; and - Use of non-reflective coated or tinted glass or hooded windows for the sides of the buildings facing the heron rookery. Historic and Cultural No significant adverse impact. No impact None necessary Traffic This element previously No impact None necessary as a part of this EIS. evaluated in Grady Way Corridor Transportation Improvement Study. Parks and Recreation Incremental increase in the use No impact - FCDC should work with City to plan of City park facilities as a and design pedestrian trail system on result of project. Tract A and following rookery protection guidelines. Table 1-3. Summary of Impacts and Mitigation Measures for Tract B Alternatives - Blackriver Corporate Park Tract B Environmental Feature B1 (Proposed Action) B2 (Single 7-Story B3 (No Action) Mitigation Measures Building) Topography/Soils No adverse impact - addition of Same as B1 No impact No grading and filling should be done up to 36,000 cy of fill; action during the period from February 15 to June would be consistent with Valley 15. Plan policy since site previously filled. Foundation No adverse impacts anticipated - Same as B1 No impact None necessary all phases would require use of auger cast-in-place piles or driven V piles. O c Seismic No adverse impact - site has low Same as B1 No impact Design of buildings will follow UBC potential for liquifaction. standards Air Quality Significant adverse impact - CO Same as B1 No impact Proposed Action(B1) should have: concentrations in garage could exceed the maximum one-hour - Minimum of 40 percent open sides (side and eight-hour ambient standards facing rookery must be fully enclosed); without adequate open area of two exits. - Top level 100 percent open (with facade on rookery side to reduce line-of-sight); and - Two exits (on side opposite rookery) Alterative B2 measures same as B1 except that minimum side opening should , be 55 percent. Surface Water - No significant adverse impact due Same as B1 No impact Drainage plan must be prepared as required Movement to large capacity in P-1 Pond. by the City of Renton. Tract B Environmental Feature B1 (Proposed Action) B2 (Single 7-Story B3 (No Action) Mitigation Measures Building) Surface Water Quality No significant adverse impact Same as B1 No impact Same as for Tract A (Table 1-1). assuming incorporation of mitigation measures listed herein. Vegetation No significant impact-9.3 acres Same as B1 No impact Same as for Tract A (Table 1-1) plus of scrub alder,grass, and scrub - following: cottonwood affected;no endangered or threatened - Insure protection of mature cottonwoods species. per Ordinance No.4219; Wetlands Building and parking would be Parking would No impact - Establish a 25-foot wide no-build buffer constructed within 25 feet of encroach within 25 zone from edge of old Black River edge of old Black River channel feet of wetland channel wetland; wetland. edge '-" - Develop detailed planting plan; and - Develop drainage plan with biofiltration prior to discharge to wetland. • Wildlife Resources Significant adverse impact that Same as B1 No impact - Plant additional native trees and shrubs cannot be fully mitigated - loss of along Springbrook Creek and between 10.8 acres of terrestrial wildlife buildings, parking garage, and rookery; habitat. and - Construct all buildings in earth or natural tones with non-reflective coated or tinted glass or hoods on windows facing heron rookery of Springbrook Creek. Unique Terrestrial No significant adverse impact to Same as B1 No impact - Plant trees and dense vegetation at the Resources herons so long as heron northernmost portion of the site back 400 protection guidelines are feet from the nearest rookery tree; followed. Tract B Environmental Feature B1 (Proposed Action) B2 (Single 7-Story B3 (No Action) Mitigation Measures Building) - Any buildings located 400 to 600 feet from the rookery should not exceed four stories in height,with taller buildings only beyond 600 feet; - Create dense vegetated buffer along the western boundary of the site to provide a vegetated heron flight zone along Springbrook Creek; - Construct project in phases,with first phase of development furthest from the rookery; )71 - After coniferous vegetation in buffer zone N has achieved a minimum height of 20 feet, begin construction of remaining phases; - Maintain mature cottonwoods,specifically along the historic Black River channel, at the northern portion of the site, and on other portions of the site supporting mature trees (e.g., near the south portion of the site); - Densely landscape surface parking to minimize the visual impact on great blue herons; - Buildings should be constructed in earth or natural tones, and glass facing the rookery should be non-reflective coated or tinted glass or hooded to minimize disturbance; Tract B Environmental Feature B1 (Proposed Action) B2 (Single 7-Story B3 (No Action) Mitigation Measures Building) - No exterior construction activities should occur within 600 feet of the rookery during the period from February 15 to June 15; and - Walking and jogging trails and other forms of recreation are not permissible closer than 400 feet from the rookery. Additional mitigation could include: - Shifting Phase 3 of Alternative B1 slightly to the east and south; or - Shifting density from Tract B to Phase 1 of Tract A to reduce height of Phase building. Noise Short-term significant impact Same as B1 No impact Same as for Tract A (see Table 1-1). during construction-most significant noise would be caused by pile driving- impact can be mitigated. Relationship to The proposed seven-story Phase Alternative B2 No impact - Reduce building height or shift density Existing Land Use 3 building would be three- to would be three-to from Tract B to Phase 1 of Tract A. four-stories taller than buildings four-stories taller in immediate area, however, than building in Renton has no height limitation. immediate area Tract B Environmental Feature B1 (Proposed Action) B2 (Single 7-Story B3 (No Action) Mitigation Measures Building) Relationship to Plans, Phases 1 and 2 consistent with Height of No impact - Reduce building height or shift density Zoning, and Shorelines Comprehensive Plan, zoning and Alternative B2 from Tract B to Phase 1 of Tract A. Shoreline Master Progress would be setbacks. Phase 3 seven-story inconsistent with building inconsistent with Comprehensive Comprehensive Plan policy of Plan policy of low low rise office buildings adjacent rise office buildings to the P-1 Pond. adjacent to the P-1 Pond Light and Glare Potential minor impact of light Same as B1 No impact Same as for Tract A (see Table 1-2). from buildings and parking that V can be mitigated. 47,' Historic and Cultural No significant adverse impact. No impact No impact None necessary. Traffic This element previously evaluated Same as B1 No impact None necessary as a part of this EIS. in Grady Way Corridor Transportation Improvement Study. Parks and Recreation Incremental increase in the use Same as B1 No impact FCDC should work with City to plan and of City Parks facilities as a result design pedestrian trial system on Tract B of project, and following rookery protection guidelines. 1.4.2 Tract B Impacts Proposed Action. The most significant impacts associated with Alternative B1 (Proposed Action) will be the construction of the Phase 3, seven-story building. The proposed seven-story building would be inconsistent with the locational policies of the Land Use section of the Valley Plan (City of Renton Comprehensive Plan 1986). The Valley Plan designated the area surrounding the P-1 Pond as Manufacturing Park/Multiple Option - Office. The policy specifies that office activities be encouraged in "low rise building" of small and medium scale. As proposed, the seven-story buildings in Phase 3 of Alternative B1 would conflict with that policy. However, the proposal would be consistent with the site zoning. The City does not have a height limitation ordinance. Additionally, the Phase 3 building as proposed would lie close to one of the great blue heron flight zones. While impacts of a seven-story building in close proximity to the zone are unknown, there is a potential for causing disruption to the birds entering and leaving the rookery. The Phase 1 and 2, three- and four-story building would be more consistent with the City's Valley Plan policies for "low-rise" buildings in the area. In keeping with that policy, three- and four-story buildings have been recently constructed adjacent to the site. Other impacts of the Proposed Action include the addition of approximately 35,800 cubic yards of fill (not a significant impact); increased runoff to the P-1 Pond; increased sedimentation during construction; loss of 9.3 acres of vegetation and wildlife habitat; reduction in wildlife numbers on the site; increased noise caused by construction and day- to-day activities; increases in light and glare caused by building, parking and automobile lighting; and minor inconsistencies with City of Renton policies. See Table 1-3 for a description of those impacts. - Additionally, without sufficiently sized exits and open wall area on the first three levels of the proposed parking garage, carbon monoxide (CO) concentrations would exceed ambient standards 9 parts per minute (ppm) in the garage and in the air 500 feet beyond the garage. However, proper design of the parking structure would eliminate these air quality impacts (see Table 1-3). Alternative B2. Impacts of Alternative B2 would be similar to those for alternative B1 (see Table 1-2). No Action. Under Alternative B3 (No Action) there would be no significant impacts. Mitigation Measures The potential impact of the Phase 3 building could be minimized by reducing the height of the building to three-or four-stories,and/or shifting the building toward the center of the site. 1-15 Measures to reduce the magnitude of impacts to "less than significant" levels are identified in Table 1-3. 1.5 Adverse Impacts that Cannot be Mitigated 1.5.1 Tracts A and B The Proposed Actions (Al and B1)would result in the loss of 11.6 acres of terrestrial wildlife habitat on Tract A and 10.8 acres on Tract B, impacts that cannot be fully mitigated. The result would be a local reduction in populations of terrestrial wildlife species (rodents, songbirds, California quail, raptors and carnivores such as raccoons), even with the protection of adjacent areas and development of linear buffers along Springbrook Creek - and the P-1 Pond. The loss of the grass and shrub habitat will not significantly affect the heron food supply or feeding activities. 1-16 CHAPTER 2 CHAPTER 2 DESCRIPTION OF THE PROPOSED ACTION AND ALTERNATIVES 2.1 Introduction This Draft Environmental Impact Statement (DEIS) has been prepared to satisfy requirements set forth under the State of Washington Environmental Policy Act (SEPA, Chapter 43.21C RCW), and in the SEPA guidelines (Chapter 197-11 WAC). As required under SEPA, actions that are likely to have significant environmental impacts must be analyzed in an EIS. First City Developments Corporation proposes to construct office buildings on one 12.7-acre parcel (herein referred to as Tract A) and one 15.7 acre parcel (herein referred to as Tract B) of land zoned Office Park (O-P) by the City of Renton. In August, 1988, FCDC submitted a SEPA Environmental Checklist, grade and fill permit application, application for site plan approval, application for Shoreline Substantial Development and application for Building Permit to the City of Renton for approval to construct a seven-story office building on Tract B. In November, 1988, the City of Renton Environmental Review Committee, as lead agency, determined that the proposed action was likely to have a significant adverse impact on the environment and that an EIS was required. A scoping notice was sent to agencies, tribes, and the public to comment on the scope of the EIS. Scoping issues identified by the Renton Environmental Review Committee for analysis in the EIS included: • Water quality; • Wetlands and hydrology; • Flora and fauna, particularly in regard to great blue heron and waterfowl; • Land use; and • Light and glare, as it affects wildlife. A Preliminary DEIS was completed mid-1989 and was submitted to the City of Renton and FCDC. The proposed actions evaluated in the PDEIS included a "programmatic" analysis for Tract A, and a single seven-story building for Tract B. Based upon review of that PDEIS and rookery protection guidelines developed by JSA, FCDC revised the site plans for Tract B and later added a proposed project for Tract A. The revisions were made to minimize the impact of the project on the great blue heron nesting rookery, wetlands on the sites (specifically the old Black River channel on Tract B), groves of cottonwood trees and Springbrook Creek and the P-1 Pond. This DEIS analyzes the proposed site plan and alternatives for Tract A and the revised proposed action and alternatives for Tract B. In addition to the issues identified 2-1 through the scoping process seismic risk and building stability; air quality, for the proposed parking structure; noise, particularly with respect to the heron rookery; and parks and recreation will be addressed in this DEIS. The alternatives are described later in this chapter. 2.2 Project Area The project site lies northwest of the City of Renton's central business district, in the vicinity of the old Black River channel, at the confluence with Springbrook Creek (see Figure 1-3). The site is bounded on the north by the P-1 Pond (a pond established by the Soil Conservation Service [SCS] to store runoff from developing lands in the Green River Valley) and the remnant portion of the Black River riparian forest, and on the south by Oakesdale Boulevard and Metro's wastewater treatment facility. Tracts A and B are bisected by Springbrook Creek which flows north from the Green River Valley to the P-1 Pond. Naches Avenue and S.W. 7th Street lie to the east of Tract B. FCDC is presently constructing a business office complex on the east side of S.W. 7th Street. 2.3 Project History Proposed development of the site began in 1979 when First City Equities, (now First City Development Corporation), applied to the City of Renton for a rezone of the area from General Classification (G) to Manufacturing Park (M-P) and for the development of a warehouse/business park/office park complex called Earlington Park. In July, 1980, a DEIS was prepared for that project, and the Final EIS in February, 1981. The "Phase VIP" project, originally proposed as a part of that Earlingi:on Park development, has undergone extensive revision and currently includes two elements -Tract A, consisting of 12.7 acres, proposed for three office buildings to be built in three phases; and Tract B, consisting of 15.7 acres, proposed for three office buildings and a parking garage to be built in three phases. Pursuant to the rezoning of the past decade, the study area has undergone dramatic changes. Land east of the site has been developed as office park; Naches and Oakesdale Avenues have been constructed; a portion of the riparian forest and forested wetlands south of the Burlington.Northern Railroad tracks were logged and partially filled during 1987. In addition, FCDC voluntarily deeded a 27-acre parcel of black cottonwood forest to the City of Renton. This 27-acre parcel has been designated as "greenbelt" in the City's Comprehensive Plan, and with a "Natural" Shoreline designation. In addition to the Earlington Park EIS,an EIS for the Blackriver Office Park,directly north of the project site,was issued in April, 1981. That EIS addressed proposed office park development on a 71.16-acre parcel located north of the P-1 Pond. A great blue heron rookery was established in a portion of the riparian forest sometime prior to the construction of the P-1 Pond in 1984. The presence of the heron 2-2 rookery has resulted in a protracted development process for properties abutting the P-1 Pond. Since 1984 the number of great blue herons nesting in the rookery has increased from 3 to 18 nests (Van Wormer 1988). In 1984, the City of Renton prepared and adopted the Green River Valley Comprehensive Area Plan of which Tracts A and B are a part. In 1986, the City rezoned the project area to O-P in keeping with the Green River Valley Plan. The preparation of this DEIS for Tracts A and B began in mid-1989 at which time FCDC had identified no specific site plans for Tract A and proposed the construction of a single seven-story (285,000 square foot) office building on Tract B. The proposed seven- story building was proposed to be within approximately 350 feet of the heron rookery. Environmental factors evaluated included presence of wetlands, significant vegetation/wildlife habitat, distance from the great blue heron rookery, topography, and distance from the P-1 Pond and Springbrook Creek. In addition, a detailed literature review was conducted to evaluate such factors as: • building height and setback from the heron rookeries; • the influence of vegetation in terms of density, height, and visual buffering; • travel zones for great blue herons leaving and entering the rookery; • lighting for building and parking; and • use of reflective glass on buildings. The product of this analysis was rookery protection guidelines for Tracts A and B and a map showing significant environmental features and setback guidelines (Figure 2-1). Using the setback and buffer zones,cottonwood tree locations,wetland locations,and lighting/glass guidelines defined by JSA, FCDC revised the Tract B site plan to include a parking structure sited as a barrier between the buildings and heron rookery; protection of the old Black River channel wetland; protection of mature cottonwoods; increasing the setback distance from the rookery of office buildings to approximately 720 feet; and establishing vegetated buffers and dense vegetation in surface parking to reduce light and glare. In October, 1989, FCDC submitted a revised Tract B site plan to the City of Renton, along with a new alternative plan showing a single seven-story office building with a parking structure. At the same time, FCDC prepared a new proposed site plan for Tract A to include three office buildings to be built in phases and setback from the heron rookery based on guidelines set forth by JSA (see Appendix B). 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"to provide areas appropriate for professional, administrative, and business offices, certain manufacturing activities, and supportive services in a campus-like setting (Ord. 4186, 11-14-88)". FCDC has owned the property since 1979, and over the years has shown an intent to develop the property, beginning with the Earlington Park EIS in 1980, a mitigated DNS in 1986, a grade and fill permit application in 1987, and a SEPA Checklist, grade and fill permit application, and site plan in 1988. 2.5 Description of the Proposed Action and Alternatives As previously mentioned, two separate actions are proposed as a part of this EIS, development of three office buildings and surface parking on Tract A, and development of three office buildings and a parking garage on Tract B. FCDC has prepared site plans for Tract A and Tract B. 2.5.1 Tract A Alternative Al - Proposed Action The Proposed Action for Tract A is to construct three office buildings with surface parking in three phases over a four-year period. Phase 1 is scheduled to be constructed in 1990 and consists of a single-story±23,582 square foot office building and associated parking to be built in the western third of the site. Phase 2 is scheduled to be constructed in 1993 and consists of a four-story ±80,000 square foot building and associated parking to be built in the eastern third of the site. And, Phase 3 is scheduled to be constructed in 1994 and consists of a four story, ±80,000 square foot building and associated parking to be built in the middle third of the site. The completed project will include a native riparian vegetative buffer between the development and the P-1 Channel, a biofiltration swale for stormwater, pedestrian areas adjacent to buildings, landscaped surface parking, a total of 791 parking stalls, and adherence to zoning and shoreline setback requirements and restrictions and restrictions established for the protection of the heron rookery. The development is intended to be consistent with the O-P zoning designation of the site and with any environmental constraints and guidelines defined for the site (e.g., shoreline management regulations, setback/height requirements to insure protection of the great blue heron rookery, wetlands, and wildlife habitats of the P-1 Pond and adjacent areas). Figures 2-2 and 2-3 present the proposed site plan for Alternative Al. 2-4 r 1 !•' \,! !-1. CHMitie. c PMPsTAnCH - •:� ,ii TABULATION , e. vv. ,. .... '. Hai, . Site Area ± 525,536 S.F. �>.,�:. ., r �. �' Building Area ± 183,582 S.F. •,..,�_'"',::,,., �\ ) �pi !fr�r"� Footprint ± 63,582 S.F. CO �;:• �`� Nt T • Gross Coverage ± 34.9% Q. `s ttte . Site Coverage ± 12.1% �'� %i' � '/ Parking ± 791 Stalls CD iLw• Ave -� ratio ± 1/232 S.F. CZ ' Sewage Treatme • '�'' ,+`?'!s> \ -.,. L L •' O a VICINITY MAP 1-200 3rd Phase- 1994 n.�'�w- �,,,,.,..,. a I- P-1 Channel ' Q e�sv.-.A.+a..WALE. �• / `� a p•G ,,s-06 •• \ Xs, I— ' N 90.0000•E 367.07• x —_ ..+..w,..--+++++ +a_.+-4 r. +•n................ _ 77Z96•�`7� ••,� // tom- e_.2 G ',7'� •�, i ` I I I I I I I I�. �r / �a�� �?� -1'\ / ' l� �� �4,q, ,'�. '�p�O 1 c m$ �gt�� �/-' �• ` ♦ �`` • 6tvr9" / i i '... • g, q� 0 IL. L ,.._ '�- ----- /• qa7� �� / !60.000SF. •N6 �( 1 U Y (1 b E 111 --- - - _ 3 • t� p'• 7zak �cP,1 '-o uru,v W •• e• .N, 1 %aai. \a U al Q o Cocro.ls---,....? ---.. :4 \ svirINI-$ ., -''' ----... \ -%=c..3 -.1 = I z . .o (:^:�,at. Ankh Floor 20.0 / 44Int 4,' • - •• •. . ,._4..u . •.p.114 ,&i.pum,, • vy/ 1 • �\\ 8•4�44 r K� �` 11"115 I 1j �' SEO,000 SF. % • n �' • urge airIIII '�C z.e.,.- G:.Ti..r.. .- 1i -d P nr \`ate I b•t : . r. 12 .fin.-�1�+.+.n"h .�\\ / ITMr,Fe-., •r YI�A �. •�� i die/ t� Jf .. 1111, SI .;` '' PROPERTY. • fV1itICNG • .,...__ ._ rk �.` / �N r10:y-a pw+NIPS DATE 1st Phase- 1990 ‘I.--_ _ ce 1 10.+ rvnaXm•a / e '"*a �� a •gym i^ �\ r iN / . � i '.r: .t "` % • a ' _.1 : R1 i , ... 0,..) ii ---- ...., 41 • _.. , ...„.. . . . is„,,,-...... ___._ _ : ... ws.+wr _ - • • ��'1 70•E 193 0'1 1 f,- / Y 2nd Phase- 1993 - _ TRACT A / BURLINGTON NORTHERN T — • -- ' - - • . I ALTERNATE SCHEME W } 7< i- _ _ SITE PLAN BLACKRIVER VN CORPORATE PARK I ��.g RENTON, WASHINGTON I - - . (1E -e�m�rnF uti ►e FIRST CITY DEVELOPMENTS CORP. Re' 69017\Si %ni=1 = PHASE VIII Fi ure 2-2 ALTERNATIVE Al — PROPOSED ACTION- d08 NO.:89017 SHEET NO OF: . - - . - DATE: 9-2O-89 SITE PLAN e. /40 1 ar€cx:a:4.4•8 PLANT MATERIAL LEGEND RIPARIAN PLANT LIST • _ O w,��'#.. ara•1•.j..,,se.-, r+v.wlte,o•4;rtwc (7) -- F rl 4sf h.MN v 41L6046 �zL1`-k►�' �i•W-ittea,io-r-,rrofl.6,02.0( ,,a vrt,l aal ,. f►ra• a,o.r, aliry...tu.cl./ rNRruR2o•'wr+.; ceo 4-1 n w e` / ao-.w,.ta 27:oru ,,1 e"' ero,+r f rw� nh+w n+4-tC+ ,r 1 L i �r- J.rGMrM o rHM• \ CZ vf--row, • rce,..Atorre-a4 ism' _►r.0-nr+0 , I -rrant-Varoria.. `I- (66 Q. woo; rEgL,i• .+w. d•d wrG fro surtfo-4-r asab.r,i.45x0:4+r0r1 -34.0".-Friz rcri0-+ -o'•. •,�.•►a- 96140 Keg Oh OP ex.,✓a7v ,np-rre c ra,a-IM P- �-�^� sr...r�,,R ,� 1.4■ rFi-,0r,• ,r r"'` ,ar '- -.n,,v a ado. rw .4.- .."i.tee++;Fa,a ad.Axo,Hi.t.70 -( 'Q...-Ai- F.a-eHrr;, wAecti-r -Rr456'', ...,.NA,H03) } 41fa,wo .-awu-,+w•r,Wral¢AWiWF7-Auto-, rvuF¢ntG., ../ o•r ?cia- o 61 -- ,.-.41,"erVs0 of x0 R10,11ortr col -f!•,Pi Of ►iHfiw4.714o a0041td1 04n•r;tccze r-i,.dY.+, • fly L P-1 Channel * trrlofin iT f>+1+rW ►v-i,= Mr +�*{ �p is=_ ' � O b Iu>wr kr Q U Rom*) r-W'(�{wlh fk'/A hV ,ia4ka r°R �, 0 �l�1. 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A.,. ., . . w. :% G fir' •'i '1.11'4` rp r...4 4' /fi4.7x of :°' ; fillil gCrsr.]G b� / wj�� I L1. `�� �,. 1►,.I i �% '/ '��•. 1�1t� •dii VISAIZ.: ' - ii• �2 + a /..i.,�`\ �� f,`10. 1;�� -w.' -G� 11� • ,,'iy I"!r �� No DEsca,anoN DAIeN �.1� `►:"r_ fta+F• a\`- •.•` ht1 `• ne .�•�. // . �• 7%� �..1,4�' i� �, �`'`, •` �'• r� ��1�i;,�1 ' _ •7.4%) FJO�I�7tOVJA A : I. • 'Aci- I 1, 111.;`‘ . .\•• /P--c—' ...,1c-erh.._ %`31& .k%74 ___\ ei'i oitook".:I.7 ) ,..,•4,_ N..: I re 4F,1 air..... '\W_ �� u i •w � •r'A'1:,..444.444,---:1/4_,AilL-,..ve,, it li*,,- #,•. .-1 ��l 'I t0�� t�t44 V _ IV9 .-\ „:�_ Ana't3r�a r ;; c� `.. e—.r07--ra--a r--t,,, V. • -`` y44k4 .jf6544s .t_' ` 22 23 24 LANDSCAPE PLAN S . VN • Figure 2-3 • Alternative Al-Landscape Plan O _ ire.frrT LANDSCAPE PLAN /4O1 CHECK Alternative A2 - No Action SEPA guidelines (WAC 197-11-440) require that the No Action Alternative' be evaluated and compared to the other alternatives presented. Under the No Action Alternative, the site would not be developed. Tract A would be left as open space and available for development consistent with zoning of the site sometime in the future. The No Action Alternative would not meet the objective of the project applicant to develop the property. Under No Action, however, there would not be any of the environmental impacts associated with construction or operation. 2.5.2 Tract B Alternative B1 - Proposed Action The proposed project is the construction, in three phases, of a three office buildings: • Phase 1 is the construction of a ±71,000 square foot, four-story office building with associated surface parking in 1990; • Phase 2 is the construction of a ±58,575 square foot, three-story office building and associated surface parking in 1991; and • Phase 3 is the construction of a ±156,625 square foot, seven-story office building and a three-story parking structure in 1992-93. Parking for the completed project will include approximately 496 surface parking stalls and 800 stalls within the parking structure. Other features of the proposed design include preservation of the old Black River channel and associated wetlands, located in the northwestern portion of the site; retention of a majority of the mature cottonwood trees; landscaping and buffering of development from natural areas; and adherence to shoreline and zoning setback requirements and restrictions established for the protection of the heron rookery. The site plan for the project is shown in Figure 2-4, and the landscape plan is presented in Figure 2-5. Alternative B2 - Seven-Story Building with Parking Structure • Alternative B2 includes one seven story office building, a four-story parking structure and surface parking. The development is designed to be consistent with the zoning requirements and environmental constraints (e.g., shoreline management regulations, setback/height requirements to insure protection of the great blue heron rookery,wetlands, and wildlife habitats of the P-1 Pond and adjacent areas) of the site. The proposed office building is expected to provide ±285,000 square feet of office.space. Parking will consist of ±551 surface and ±800 within the proposed parking structure. As with the Proposed Action,this alternative includes preservation of the old Black River channel and associated wetlands; retention of a majority of the cottonwood trees; landscaping and buffering of development from natural areas; and adherence to shoreline and zoning setback 2-5 11- 1 • .4______c_taerotauscpsn-Ac.... . r . r 4'04,C01,...ICCO....y a-in 44e0,04,,c-41- 4.5. .carrolINAX0—A. vaue-oerzs..1 uc-cr • pi . • • - . •i-•94-amt....zoo vt/ ..„..1 : I i . b-116,0•QC...IL-41- r 4t4b4A-(t.s.-,. / e ,\_ 7 oqy coo. •?(Det 1 , I / '.. cr-....>'''At.<;4?‘ N... %""esl• sc1-44. • . 1 1... . ( •12-1 Cha r . • ,40,„ CCS . \ • htec, 1 [..--- nne i l 4, ,, • • . -• \ •, 1, 40o,c,s,v 0- Detention Pond sr, _ , , ..„, 1/4....,........ ; i VICINITY MAP , • • , ...„ . ...."-----...„....4., elt, i , // •„Iffr. ...--.. .2.00-E 4S4.27' isiPIRE WAY , re ItifilAr REHM... ' eL -------: .."..:• i i t. i - -- --. 5 BLACKcoapottA. RrimucVER7re-7.::t.';:ictti)i Ig 0IiIf 411 $901:00CrE 27.4..-.,74 41.5...C.0...E 3 1 - — I;I,•t,,I_i,411i.-iIi VSEAA.LTL AESC ESOUlT HCE • 07,1::, Thi.I:r0w ilf • • El 00 / g40 1 NTER0. CRS 0ai..... c,1•'<--- o,.\ \ /4' t 1 Si-•• . •...1***. .: ,,, E :•,\\ \ r •:"?' ti, " .. P \\ .rc. ..- --•1 :Fil Qs i ,• , . cr ----......,___ VALLEY I-' g. I ",-* , ..-- " . ••••E' ' ° ' ii .1- r GENERAL 0 i..... .\ • ‘ /4.5- I. 4u • 1 .--••••• Willt%, -____ sl.... ' 4•.• \'\ .Z. ts f'A -........ 40 i . t :: ...• aZd.: ! ,:1 ! _ _ ,_,, kr HOSPITAL / A ' --'-- •141 D \ cr —.......... S MOTH ii . . if - \ II'\ ' / III - 0 S \\\‘\ 3rd Phase-1992-3 •/1-' 4 I: ,- I oyrel, ----- ---lik. ..... . 1 .... -"et,: •x•r• : )--- 40410'4 1-sc-11 ' .' .Z. 'vViih,P-arkilty Sirueiure I/ . .\ .:,,, ..,3 _ - 1 ... \ ( .:i...- - •!....:,,,,,Auliimi--/A ;7 1 -- ;:',' \ i:1.,,113) //1/.; iii i 1::: ill :.._ Le,- . . .•To - -. .. ..- ,.., \ N \\I r, _ \. 0 4,.." A ) i „I i .. !,i,,,. , D-. • I I. . HERON EXHIBIT -. . 6 0 (f) CZ < g i -‘- 2 Ar; .ig' /./ fr W,---- - --------- IC ;II" t) - 1,1,...).. . ;1 1 -1 •-.....___ ____--\,.. .s., i‘f CO n_ ce • ' ,,, r iiti.VI ''I...... 1\-.......... y? .7 . 6 iiiit ..r.e.ii: //yr:I; 1 0 A 'S•5\illb . 1,4 isfAil.- ) \\ 7 Of I I ' 1 -• .,,,,,s,..01. .iriA__ 4 1,E,s,.7.::z,,,Li:Erp7; ill'iS .- . A . ' ..--''..".-----*---. ViK K,,._.,._,c/4. .71ZHERON ROOKERY i r,.: ,\741......L-DrainageDitct--, ,,,.. . , . ' r.- \, 11/ l ,Ili \ /. 1 7,1 4411141111.--_ :4 11111ii. 151°C6 C'14 -)/ 111 i k ‘tv. \..... •..: A. ., // , .....-„.......,„4-, 7 ., •s c 4-2:1,...... .. .. . I \ 1111111011PP----- di - -...* -- \,..---- . ----, -x - . • • \Existing Mese 111 --- • ill: : /I ' ////1",ii://1. :..•.1 s ... ... 15/st'..' ‘\\',....,....... 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NO OESCRIPTiON DATE - .01.40, _. a-4-4.A „ - • ___ 0.,;":"--",-...„. -• "dal.4 ; iv„„...• i ..,, r__ _ ._--_-----.. -...i.,_ .A041.1V.- . - - - '''t -'------ .-?;::: .... ,,..,, 'en,.__••• -.-=.., IA% . .‘4,-_,-...i.r.,,c,m4G2-2-zrio ---)- -.....:,7 X"•;r:.•c.ToQ:;;.e-.E-fx . ; ! ih 1(1 • 2coa ..: \----, • vAir .-....----- 7•5 A• AA:" ..-fr- vf--., ,--:-.—D-- 4.e- ' % - "11 , • AiriK a. ••••••.., , e .••••"*.... • a -- I ..'...... /X4...-1---.. ..-------N lirki 111.1411ftligkomm......--_I - .-QE-E-4 1st Phase- 1990 .\\N " i i aj -Ape: • \ - t - _ .,,,, a • Ext.454 , / • .- -- • -.-.Ali, :sir ir , -z:,sta.4e•540.,Ei.: — 7::-.• .- c • --•\•:3--- . -.\- :-Z.,-- _, ----- __ __ ._:_11111* 484sti ,--leit , Or , - -\\ %\.• —....C.. ......'...e.r. ••o—-,,____,--,,.—....'_e cia .4-i--t,_.,.r4........._.„„—•,.-„.- ._:,: / e -/..,'•.' .sC.....L,., 4 - — ...,2.-.,..1-.E.... -?0.Ei.ec^.i..S-.,.-.E,..,-..s.n,.G,.E.r.-EA.x-.2.-1G-E,4-Ai,Q0,S.7E E--i0b,-VE.,-.TG-•6.,f52vE-i,.-c..2.-...-.',.-..S...E.S5ce:,.-E r.E0G_ . . . •• ,..,_,N.., 11........,.. tedtyfe,u_ 4 -;:=.1„..........,......, ..!.. 1 ,........ • V/ pe /,. ••-ex.sr..4G--4zz- " , z ./ / 5 . T I / . -,D....--•er TYR • 0-,'DE-iit...4.':.- °S.W.. ' • • ....................... • ,..-:..-......:z..... ',-.7„.;/ .../.." e/// • ' ..45 .4 . , •,.., , 4 r / TABULATION --. t..... - - BLACKRIVER \-1 _ ,.... -4... 1. N''...-::4441.5, C.:'. , :ttc..';"‘//-".... "-- -- ... , • Site Area ±683,762 Slk--„. •.--....4., rde/ ....Eve, Aaiectoec-n3Povwg I ......... . Building Area 2:286,300 S-E ...______ . ..'''''...,%,.: ......-4.‘.,... "Nki„.1, 4-47...s. z /7 PP...,,,_,. -., CORPORATE PARK /v/. . N ,. e•ge...---•:- -„,. . ./ .../. k ----........ SITE PLAN ±41.9% .....r. Gross Coverage ! - --, tk:40.9.1" "rj1,/ E.-----1,..- Site Coverage ±23.6% (Includes Garage) -... 1 -.., . 1 --.. ,--z*,& RENTON WASHINGTON cc . o . ... .,,- / ": '* ' -- ' --.. FIRST CITY DEVELOPMENTS CORP. z ±1296 Stalls ±1/220 S.F. , .....-......,..... -..,--i x I--( i : Fa ,sd 90i 1301 • Parking 7.f--••=, - ....0, ... I r, Standard (±800 Structure Parked) ••••...€50.•-& -.,C. TRACT B 5,, ..„ L% Compact /N \ -----\ Handicap -:, ALTERNATE SCHEME ,7-A 2nd Phase-1991 .. .. . Vail Surfacs Parking . , . . ' . - . -__A_} — -- JOG NO. EEGs; SHEET NO OF • \ Figure 2-4 ALTERNATIVE B.1 - PROPOSED ACTION DATE .1-TE)-V CHECK•5".•,-• . . • '� ' MARRAMACE ACCESS F oo• i et II 1 1. .1.-4..." .:...........I,...-: --.•...,.......� ri LtF; `� 4 kl 4 Si`' -g- --------- \ t i f i: il 0 7,‘-. 0 4 . , a T' \1;*-4'-'111% h c li Os a 4 ,, �j Lam` ; �N �7�f .ic. ' "l�t� ry -��� AqY„�,w �R r / , -,. �•� • +� �'�-- Are t ----"\-----./ ': , -4,-,....1c 'AVI1/41466,mit,1,..vi"0... oiOtt - ' . I Arlill .1749,,- "Ns. A‘;‘.60,09 .. IS. ' te til . ...., 1 Pr / '... 14'7'n. -74ami ...-t„•• "..., AI atv4,4m.,r4 ' ' thi, ,,) 1 ; 1 veal I al a 4 1 4 •.P • • ''Pt• 41;ifi Or ic41 4wa 4tv4 0 ; is¢i 1 :y: ',� A'.1 =''. 4 F1i fi -s4'.ar4/, . .•. , ; t,, Ii ,, 4,-:," iv( 4.0,40- ,, \ xt 110:, i J :di / El / • -/4, .A04 e 1 e Ore'- •. - --- fat I /I/. _ ___ _ _, At, . /a • 0 A ,•'. v 00. I 4 "' \ VA *1.3:it 111,41'.1k 7kii.• i 1::( ' / / Sti./ ,.‘• ; #40( . ., 9:- sq % . ‘j• AN,. Y'r: 1'if/ % i I 1 1 / At!.i '\ ' ... .A ‘k ' ' lit. .41P.1\ elli ,,, .• . .. .. i V / e ..„ . ,. -_, , . i.v. , /.-, :All .• ,, ,i...41/............ . 1,,,_ .i,„, , , . . .,.... ._. . . • fzis,. .....\ •. 54 • ,. Wt. tr. - illi . .:. lot ..--, ,..0,.. 000$,. ,N15, .,41. .. . t , ,e,• ,3-`71,,,,0 )(,,,I: titk:°Iv A•• -N , :'II,.-4 .4,,L111.4 ilk\ , j tr% , 4s..•y• . I /7 �" Icr"- y / N . j Ai°4" 11 ea t iyt • r ! •� ..rei .�'/ • m i 1/ I4 1 4,a �,. �. � � �. � � �_ ' O `�►'��� 'ti /��}• .. ',f.•� Vie 21 );::. \.\ .., ' ,‘..'t,'040.405,-;01k41\ , ?-i, 1 .. //------- — :-.------7, . !,,,/_____ .._ 1 i .i. 7 . CD- / \ \ V' 41O1to0il 7 j / 7! ........ K---4.,, I. e is. _In ff.?' ‘ -Iiivkl. , / dor _____/ 11 R1 bps° \, ,g, . am ,� -nv-. - .t„.s. r 1 Z u„'i;4 a id \ \•41, I ti -�' ` � - - - - - eheAvsSW.- - � - ^� - �•- - - - - - - o 11/\\, ilAIL. •;"11 "" .-.. .,Z.- •-•----"'-7;----.'"'.-' '.,---,-.-"' ------ 7—C ' .--1.1 1 -o 1 = I ? n Z .,.I TI �T 1 �llr 1 iT M 11 0 CO i It i! C m m O � �an I ['I1 rl✓Gid �rI�A7 "� '"� O '• i [ID U CO 6. > Nil I n i tr - • ia.. -, 1 -Zit kliiiiAtl iiiitift 11 1 tt IP 11 1 il ; P 1 6rfl- £. ;Alig itlltlit 1- iitillit 1 1 I. 1 i -.-1; -i > 1 ' • WIt 4 4 1 p ; il 4 1 11 ill 4' 4 el it ‘ii 1 0 1 r- 0 = ,:..t. )::, 0 E OPP • m 0 ...ri M ti 1 4 :,11_ 41 . f i A t C'''' /it 1 li 1 1 i NORTH 1. "Cil. llt'i4 tq tqi tItl ? � ' If1)eU . NC0•f tt,a\ `S`t`lc t m r7 Jl skk 1 ti- ‘ , z • .„.. ! 2 S x r a First City Developments Corp. P, Blackriver Corporate Park _III % 11?q %E�k41� PHASE VII TRACT B . 9 ? Renton, Washington 3 requirements and restrictions established for the protection of the heron rookery (See Figures 2-6 and 2-7). Alternative B3 - No Action Under No Action Alternative, the site would not be developed. Tract B would be left as open space and available for development consistent with zoning of the site sometime in the future. The No Action Alternative would not meet the objective of the project applicant to develop the property. Under No Action, however, there would not be any of the environmental impacts associated with construction or operation. 2-6 « �a+aro� .s. ' „ // / • RI-Je IEQpJ•EGr \ // // n I� 1 �` QI �' ao. e / __ '' I \q 1 I P-1 fxtelnel &• \\ ` •• • • It If r •b)i:i • ;_- sozo. ¢$¢--- sea o0 0o E 2 •/r 31�� w 1 I �, co • erril \\ r _ _ \ f 1�.$$I N iao, iE iet 5 LONGACPES• ®• > U \ o flk Y :4. • TER tiI' -- / -. •I 1\, 1 'ice !14. I d P ' VAL_. o CC lb is i A� II I HOS?..' `��� S �! • ;I: / 25 -•>; t� •?�\ I I ll a'• .1'- i..e�- 5t61TH , I--J a > o \\\ 1991 7 Story Office —i!. '14:, i o In � _. �. °t° <_.... 8 _. I mW\� aWith Parking Structure 1: : , . ,-- MIL *� - 1-1 - o : `�';. 6 �/ I�' 1I ' 1� '., ?),./. t,-.. i• :1 Q. HERON EXHIBIT U U) CO.:1\ • • 4 • 1 Y /i. / 'a°°sr/Tus I :' I I` . `II i i i1 • ; 1 jI lIIq• . ' I II1*t, , Jr ---�a6t%\ -11 :.E�C1• /�� t - I r CV' q� I` (SYN2.f_ ^�i/�) t , , HERON ROOKERY i/ Ai ...2., . fil 4 ---- llimi - lii iii • • :. . .. . 3 . / f. ' '' -01,f1•y Ditch, of / it/ /I \It D J a, ,,i, -7,-,-....., • . ,,.... __,::....., tel. 1/ / 4 •0 us \i1 ! •1 , v t Channel, ,1 /r. 2 1 aI �v • / a i [if I:: �' , =285., »o- a ib •� �.�� ! I`. :1 1 : 1 E:l•ti g Phase■ /7 : .1 (•'! / i /l / '~ �/ 13 • 1� 7 j• t ,ill / / 'L 1 I/ _ 'j� 2L I -t,;,17,})• R�2s•L_12Y` -�I ��/ 10 oE9dwTK1M wTE ' \ Imo/ , _ _ �. \ ' 1 :; - _ 0 � tt • 4-E PI.Y G.1lM'74..L--• ..1 �I . 200, I- lami -N _ - - ./-_eo's.anu GEwER r Sk, �i- ' II 1 .MU t - - [' II ,L: ' c _ = __'- _ r'� �:-j �j • 111! 7 9r _in o �I d r'i ?3 r� fir. O (V\ 6J L-� f SL2�R 7 __ _ 7 Iis t i .-___- -7�e IV: �1� 4 7 �i Pfr i 7- . 7R......r. 1.Se-,. ..--..%2+[=, • • _.� '_ �`'`�`�'44 ` 5 6 ./, 1� L� " "'her RK... `��` ` \av�•~�/� O- �b hdala qY ,�•.� 9 1' '� - l . /›. • °ems %C.• ',` .� ate'- \ ..,�.`, end "`.ca_ � r i/ •�'"c...r-,ra • ��+ �5j� • fie+ TABULATION• �� BLACKRIVER VN Site Area ±683,762 SF-,,. �� �'s. c,� ,-:. c �a>., ` , X �, CORPORATE PARK . ASITE PLAN Building Area ±285,000 S.F. `�'--_,_ ,`�`,�s";�T '�•• s. Gross Coverage ±41.7% r MEk "-R-47.5' �; , Xx 1 \_ -saA-r ,r. �- _� s-� �• RENTON WASHINGTON 1- I / J 5-:�- s xvu.aem?x�weuicc Site Coverage ±17.6% (Includes Garage) - I . `•\ i _..• •.----1^'E-•is ;h�_� � •\%i r FIRST CITY DEVELOPMENTS CORP. z Parking ±1,351 STALLS (1/211 S.F.) � ,�`` r j Ea Sd ea tad staltaa<a .� r` TRACT B ` Compact • Handicap � � . ALTERNATE SCHEME . . �' _ r \\ \ OATE 1o:4 8041'�� s1tEEY w OF Figure 2-6 ALTERNATIVE B2 - SEVEN STORY BUILDING WITH, .PARKING .STRUCTURE. et M• ,�, MARRAMACE ACCESS A .,„ I I "� eft �/ I - 'r �fqa• / II I 1 �� � hptir + E P pR go i'g iii i ,14,0 • I i li 11 11 / i fir!?`j. �„,jj�. - 4'-# ,/ ,,,,, ar, .... ,iciiirsigp-Aw ...,-,,,. , ., . li, yp I, . -1 , , I%4400, ,--4.4 "iiN .. ... .,. .-•.;%. • • a i b, i fif ix*? Et_44,A04••• 30).4 ' .vg. s'.. • • i �,�,�y r d '0% ~ . 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'I-1=1=i, ..1 q/.1 4 til $ e•^ g Renton, Washington $� CHAPTER 3 CHAPTER 3 AFFECTED ENVIRONMENT, SIGNIFICANT IMPACTS AND MITIGATION MEASURES 3.1 Introduction This chapter presents a description of existing conditions,environmental impacts,and mitigation measures associated with proposed development of Tracts A and B of the Blackriver Corporate Park, Renton, Washington. The impact analysis identifies both construction-related and long-term operations. The subject areas were defined from comments received by the City of Renton during the scoping process initiated in November, 1988. During the scoping process,written comments were received from agencies, tribes, organizations, and private citizens. 3.2 Earth Resources 3.2.1 Topography/Soils Affected Environment The topography of the project area (both Tract A and Tract B) is generally flat, varying in elevation from 18 to 22 feet on Tract A and from 6 to 18 feet of Tract B. The steepest slopes on the sites are ditch side-slopes (approximately 6 percent) adjacent to the P-1 Pond. Both sites have been partially filled with soft to stiff clayey silt and silty-sand excavated from the P-1 Pond in 1984. Additional fill was added from construction of Oakesdale Avenue and 7th Street as a part of the Local Improvement District (LID) transportation improvements made during 1987 and 1988. Soils beneath the fill material consists of 13 to 23 feet of loose to medium dense silts and sands with varying amounts of gravel (Earth Consultants 1988). Very dense sands and gravels occur at an average depth of 20 feet below existing grade. The depth to groundwater at the time of geotechnical investigations (June, 1988)was 5 to 10 feet below the surface (Earth Consultants,Inc. 1988). Groundwater levels fluctuate seasonally. According to Earth Consultants, Inc. (1988), the • soils, with pile foundations, are capable of supporting the proposed buildings. The Soil Conservation Service (SCS 1973) King County soil survey was prepared prior to the construction of the P-1 Pond and Channel. Prior to the filling activities, Tracts A and B were classified as Puyallup fine sandy loam and Woodinville silt loam. According to SCS definition, under present conditions the site would now be classified as urban land (soil that has been modified by disturbance with additions of fill material). 3-1 Soils within the old Black River drainage channel consist of blue silts with organics and underlain with blue sandy gravel. Portions of the old channel are, by definition, wetlands (see Section 3.4.2 for discussion of wetlands). Impacts Grading would be necessary to establish desired elevations for construction and to achieve elevations above the floodplain(15 feet). Few portions of either site are below that elevation. The initial site work will involve site preparation and general earthwork, a preload program, and pile placement. As a part of site preparation and general earthwork, trees and other surface vegetation and organic material will be removed from the site (see Section 3.5.1 Vegetation for a discussion of impacts to vegetation resources). The ground surface will be compacted prior to placement of structural fill, foundations, or slabs. Following rolling, fill will be placed in horizontal lifts. The foundations of the buildings will be developed with spread footings (Tract A single-story building only) or by augercasting concrete piles (piers) to the dense and very dense sands and gravels found at an average of 20 feet below existing grade (Earth Consultants, Inc. 1988). Tract A. Cut and fills would be balanced to the extent possible to minimize the need to import soil to the site. It is possible, however, that up to 10,000 cubic yards (cy) of additional soil may be needed to achieve desired grades (Coppock 1989). Based on the proposed floor elevations of the buildings, elevation changes on the site would be less than five feet. It is anticipated that grading for all three phases would be done in the initial phase of the project (Coppock pers. comm.). To reduce the amount of post-construction settlement under the proposed Phase 1 single-story building, an additional 3 feet of material will be added as preload over the compacted fill. The material will be left in place for approximately ten weeks, at which time it will be removed from the site. A City of Renton Comprehensive Plan (1986) Valley Plan policy for land development states that "the City should encourage development of vacant lands currently filled and zoned for urban uses before allowing significant additional landfill in the Valley." Because Tract A had been previously filled as a part of the construction of the P-1 Pond, the placement of additional fill will not be inconsistent with that policy. Under the No Action Alternative, no filling or grading of the site would occur. Tract B. Similar to Tract A, cuts and fills would be balanced to the extent possible. Due to the elevation of the site, however, it is likely that greater amounts of fill would be needed to raise the grade to desired elevations. Approximately 35,800 yards of fill would be needed under either Alternative B1 or B2 (Coppock 1989). No fill would be placed in the drainage way at the north end of the site or in the remnant Black River channel in the 3-2 east portion of the site. Grading for all three phases would occur during the first phase of the project (Coppock pers. comm.). As with Tract A, portions of Tract B had been previously filled during construction of the P-1 Pond. The addition of additional fill to the site will not be inconsistent with land development policies in the Valley Plan. Under the No Action Alternative, no filling or grading of the site would occur. Mitigation Measures To minimize the impact of grading activities on great blue herons, no grading should be done from February 15 through June 15. 3.2.2. Foundation Affected Environment As mentioned in Section 3.2.1, the project area (both Tracts A and B) are relatively flat sites. These sites typically are underlain by 13 to 23 feet of loose, silty sands, silts and soft to medium stiff clayey silts. Beneath these surficial materials are medium dense to dense and very dense sands and gravels (Earth Consultants 1979). The surficial materials can be expected to compress when loaded and, therefore, a soil preloading program has been recommended(Earth Consultants 1979,Earth Consultants 1988 and Golder 1990). For structures ranging between one and two stories in height, conventional shallow foundations are recommended for building support (Golder & Associates 1990). Because the soils on these sites cannot support typical column and footing loads for buildings over two stories high, pile supported foundations extending to the dense sands and gravels are recommended for these heavier column loads (Earth Consultants 1988; Golder 1990). Appendix D of this EIS includes geotechnical conclusions from Golder & Associates (1990). Impacts. The impacts of preloading the site are associated with transporting fill to the site as mentioned in Section 3.2.1, 10,000 and 35,000 cy of material are expected to be imported for grading purposes to Tracts A and B, respectively. The transport of preload material would consist of using material which will later be graded onto the site and possibly using some additional fill material (particularly for Phase 1 construction on Tract A) which will need to be removed before construction begins. No quantities of preload material have yet been calculated. Tract A. The single-story Phase 1 building would be constructed using a conventional shallow foundation for building support. Impacts will be construction-related and of short duration. Construction activities will include trenching for foundation footings, compaction (rolling), forming, and concrete placement. 3-3 Phase 2 and 3 development will involve deep foundation. The impacts of deep foundations depend on the type of piles selected by the engineer. Both driller auger cast-in-place and driven steel piles are considered possible pile types (Earth Consultants 1988 and Golder 1990). Auger cast-in-place piles are usually drilled to between 40 and 60 feet in depth and have a capacity of approximately 50 tons (Golder 1990). This type of pile typically is constructed using a hollow stem auger. Augering will be done using a crane mounted drilling rig. As the hallow-stem auger is drilled, additional sections are added until the proper depth is achieved. While the auger is withdrawn, the concrete is pumped into the hole through the auger. Reinforcing steel is frequently placed in the top of the pile to provide anchorage to the pile cap. No impacts other than noise (see Section 3.6.1) would be anticipated for the use of drilled auger cast-in-place piles. Approximately two to three hours of time will be required to auger and pour each pile. Steel piles are often driven into, the ground using a crane-mounted hammer. The piles probably would be 40 to 60 feet deep and yield a capacity of 70 to 100 tons (Golder 1990). During the driving process, the noise level at the pile could reach 110 decibels. This high noise level would last from two to four hours per pile depending on the obstructions encountered (see Section 3.6.1). Fewer steel piles than auger piles would be needed to support a building. Tract B. All buildings proposed for Tract B (both Alternatives B1 and B2) would require deep foundation. Impacts of deep foundation development would be as described for Tract A. Mitigation Measures. Soil conditions on the site are judged to be suitable for building construction,including the use of conventional shallow foundations for one-or two- story structures. Either auger cast-in-place or driven steel piles would be suitable for buildings greater than two stories in height. No mitigation would be required. 3.2.3 Seismic Affected Environment The Puget Sound region is a seismically active area classified as Zone 3 by the Uniform Building Code (UBC). Large magnitude earthquakes affected the region in 1949 and 1965. The 1965 earthquake was a magnitude 6.5 on the Richter scale and registered Level 7 on the Modified Mercalli scale. The regions largest earthquakes have been subcrustal events, ranging in depth from 50 to 70 kilometers (Earth Consultants 1979). An evaluation of the liquefaction potential of the solid in the vicinity for the project site was performed in 1983 for the expansion of METRO's Renton Treatment Plant. The 3-4 - METRO site is located immediately south of Tracts A and B of the Blackriver Corporate Park. It was concluded that the potential for liquefaction at this site is quite low (Converse 1983). The Renton Treatment Plant was designed for a peak ground acceleration of 0.17 g which corresponds to a 70-year recurrence interval of a 50 percent probability of exceedance in 50 years (Converse 1983). Figure 3-1 shows the probability of exceedance of peak ground acceleration. This figure is from the seismic risk analysis performed by URS/Blume for METRO in 1983 (Converse 1983). This acceleration defines the level of shaking for the design of this essential facility. Based on the design acceleration and the type of soil at the treatment plant site, the liquefaction potential was determined to be quite low. The soil in Tracts A and B contains plastic silts and medium dense sands which diminish the potential of liquefaction (Earth Consultants 1988). The peak ground acceleration for design of the new buildings, based on the 1988 UBC, will vary between 0.10 g and 0.21 g depending on the structural framing system used. These design ground acceleration values seen reasonable since the METRO facility, which is considered an essential facility, was designed for a value of 0.17 g. Impacts Tract A and B. The impacts of designing the Tracts A and B structures to resist the peak ground acceleration_ as defined by the UBC are anticipated to be typical standard practice for buildings of this type. The lateral force resisting system employed in the structure will transfer the loads through the piles into the soil. Battered piles may be necessary to transfer loads for the structures supported on piles. For the structures with spread footings, the passive resistance of the adjacent soil may be sufficient to resist the lateral loads. No calculations have been performed to determine the forces transmitted to the battered piles or into the adjacent soil. Mitigation Measures Design of buildings must follow UBC standards. Calculations should be made to determine the need for battered piles for all pile-supported structures. 3.3Air 3.3.1 Air Quality Affected Environment This section examines how motor vehicle emissions produced in parking garages affect nearby concentrations of carbon monoxide (CO). The analysis, conducted for garage designs for Alternatives B1 and B2, is limited to CO because CO is the primary pollutant of concern associated with parking garages. 3-5 Probability of Exceedance (%) 99 98 95 90 80 70 60 50 40 30 20 10 5 2 1 .5 .2 .1 0.40 - 0.40 0.35 - 0.35 c 0.30 - - 0.30 4.3 • ?) 0.25 - - 0.25 Average Time Period, T (years) 100s. 50 20 10 5 2 1 cp 0.20 - ` - 0.20 x ai 0.15 _ • - 0.15 0.10 - Ns,, - 0.10 Note: Insufficient data for PGAs less than 0.l0g I I I I I a t t t I I I 1 Ye t t 1 2 5 10 20 30 40 50 60 70 80 90 95 981 99 99.5 99.8 Probability of Nonexceedance (X) source: URS/Blume 1983 Figure 3 - 1 Probability of Exceedance of Peak Ground Acceleration 0 The air quality analysis is organized into two major sections. The affected environment section discusses the existing CO air quality in the project area and the factors contributing to existing CO concentrations. This section also discusses parking garage air quality issues, including air quality standards and criteria applicable to garages.The impacts section describes the results of the air quality modeling conducted for each parking garage alternative. - In addition to the air quality analysis covered in this chapter; Appendix E of this EIS contains a discussion of the health effects of CO and the modeling procedure used to estimate CO concentrations. Existing Carbon Monoxide Air Quality. The Washington Department of Ecology (WDOE), the Puget Sound Air Pollution Control Agency (PSAPCA), and the U.S. Environmental Protection Agency (EPA) have each established ambient air quality standards for several different pollutants. Each agency has adopted identical air quality standards for CO. The 1-hour CO standard is 35 parts per million (ppm) and the 8-hour standard is 9 ppm. The PSAPCA is responsible for controlling stationary sources of air pollution in the central Puget Sound region while WDOE is responsible for monitoring CO levels.These two agencies operate 39 gaseous and particulate air monitoring stations in the central Puget Sound region. CO is monitored at 13 separate stations: eight are in Seattle, two are in Tacoma, and one each is in Everett, Bellevue, and Bremerton. None of the 13 CO monitoring stations are close enough to the Tract B study area site to be considered representative of CO concentrations in the project area. Given the current density of land use development and the existing roadway network, existing violations of the CO standard are considered unlikely in the immediate vicinity of the project area. Factors Contributing to Carbon Monoxide Problems. Motor vehicles in King County are the primary source of existing CO emissions. To illustrate, Table 3-1 identifies the source of CO emissions in King County. Over 96 percent of all CO emissions in 1987 were produced by transportation sources. The highest ambient levels of CO occur mainly during autumn and winter months. The highest CO levels are measured in the vicinity of congested motor vehicle traffic present during later afternoon commuting and around shopping centers, particularly during holiday shopping. A contributing factor during some periods when CO levels are high is the existence of stable weather and light wind, which temporarily reduce the dispersion of CO emitted into the air. CO is primarily a winter period pollution problem,with motor vehicles the dominant emission source in most areas. Winter seasonality is the result of two factors: • Vehicle CO emission rates increase at low temperatures; and • Meteorological factors resulting in limited dispersion are more prevalent during the winter than at other times of the year. 3-6 Table 3-1. 1987 Emissions in King County Carbon Monoxide tn/yr percent Point Sources Industrial Boilers 1,473, 0.30 Forest Products --- 0.00 Primary.Metals 2,092 0.43 Electric Utilities --- 0.00 Chemical Production -- 0.00 Cement Production --- 0.00 Other Point Sources More than 25 tn/yr 215 0.04 Less than 25 tn/yr 392 0.08 Area Sources On-Road Transportation 453,585 92.59 Off-Road Transportation, '20,003 4.08 Small Boilers 720 0.15 Slash Burns 1,144 0.23 Residential Heating 4,992 1.02 Other Area Sources 5.260 1.07 TOTAL 489,876 100.00 Note: tn/yr = tons per year 3-7 As a directly emitted pollutant, transport of CO away from the emission source is accompanied by dispersion and reduced pollutant concentrations. Consequently, CO problems are usually localized near a relatively concentrated source of emissions. The conventional expectation is that CO problems will be associated with a combination of high traffic volumes and significant traffic congestion. In recent years, however, it has become apparent that off-street parking facilities can also be an important contributing factor. Several studies suggest that CO problems occur primarily in the vicinity of major traffic arteries having significant amounts of commercial development. The presence of significant commercial development is an important contributing factor for two reasons, 1) parking lots for such developments represent a localized source of emissions that augment the CO emissions from vehicle traffic on adjacent roadways, and 2) vehicles leaving major parking lots are likely to be in a "cold start" operating mode, resulting in higher CO emission rates than is typical for through traffic on major roadways. Meteorological conditions are also a significant factor affecting the development of CO problems. High CO levels develop primarily during winter when periods of light winds or calm conditions combine with the formation of ground level temperature inversions (typically from the evening"through early morning period). These conditions result in reduced dispersion of vehicle emissions,allowing CO problems to develop and persist during hours when traffic volumes are declining from peak levels. Motor vehicles also exhibit increased CO emission rates at low air temperatures. The air quality impact analysis presented in this EIS focuses on the potential for CO problems associated with parking garage alternatives associated with Alternatives B1 and B2. The following discussion provides some pertinent background information on CO concentrations reported from inside parking garages and the various air quality codes and standards applicable to parking garages. Carbon Monoxide Concentrations in Parking Garages. Post-construction monitoring surveys provide limited data on CO concentrations inside parking garages. British studies often report carbon monoxide concentrations of 100-500 ppm inside poorly ventilated above- ground parking garages (Barratt 1985). The high concentrations are largely due to the absence of significant emission controls on vehicles sold in Britain. CO concentrations averaging 8.9-34.7 ppm have been reported on different levels in a well ventilated multilevel underground garage in Toronto;CO readings exceeded 100 ppm in two other underground parking garages (Wright et al. 1975). EPA has reported CO measurements in underground parking garages ranging from 40 ppm to over 100 ppm (U. S. Environmental Protection Agency 1979). Ingalls (1981) reported a CO concentration of 325 ppm inside a poorly ventilated, multilevel underground garage in Los Angeles, CA. A California study (Flachsbart and Ott 1984) provides data on carbon monoxide concentrations inside 10 different parking garages in the business/commercial districts of four different cities. All garages were described as "enclosed" or underground, as opposed to the "semienclosed" garages associated with shopping centers. Mean short-term CO 3-8 concentrations of 25 ppm or more. One garage produced persistent CO concentrations above 9 ppm on the lower 10 floors of an attached 15 story office building. Recent personal exposure monitoring studies have provided additional,data on CO values inside parking garages. A summer test of monitoring equipment measured internal parking garage CO concentrations of 27 ppm during the morning commute period and 50 ppm during the afternoon commute period (Ott 1985). CO concentrations averaging 10- 20 ppm were recorded inside parking garages in Washington, DC and Denver, CO (Akland et al. 1985). Additional studies in Washington, DC found 3-minute CO values averaging 20-25 ppm inside two parking garages during morning commute periods (Flachsbart et al. 1987). More variable carbon monoxide measurements (24 ppm at one garage and 94 ppm at the other) were reported for the afternoon commute period. None of these reports specifies whether above-ground or underground garage levels were being-monitored. CO concentrations inside parking garages do not fully identify air quality impacts on the general public. Parking garage users spend little time inside the garage. Garage users and other members of the public will, however, be at locations near the garage for more. extended periods. Locations outside an above-ground garage are exposed to a series of overlapping pollutant plumes, each dispersing from a different garage level. The total pollutant concentration at any location is the sum of the incremental contributions from each garage level.Under limited-dispersion meteorological conditions,locations within a few hundred feet of a garage may be exposed to pollutant concentrations greater than those inside any single garage level. Parking Garage Air Quality Standards and Criteria. A variety of codes, standards, and recommended criteria have been adopted by various governmental agencies and professional organizations to address air quality conditions in parking garages. These standards and criteria are discussed below. Building Code Ventilation Requirements. Ventilation requirements for parking garages differ somewhat among the codes used in different parts of the country (Boldon 1985).The codes generally distinguish between open garages and enclosed garages. Open garages are those meeting code requirements for minimum natural ventilation. Enclosed garages require mechanical ventilation. Building code ventilation.requirements for open,garages are phrased in terms of structural requirements (extent and distribution of open facade areas) rather than as air quality performance criteria. Anticipated vehicle usage patterns are not considered. Thus, there is no simple equivalency between building code ventilation requirements and potential internal carbon monoxide concentrations. Building code requirements for enclosed garages are generally phrased in terms of minimum air flow (e.g., 1.0 - 1.5 cubic feet per minute (cfm) per gross square foot of parking area). Some codes set CO performance standards (e.g., 50-200 ppm, depending on averaging time). In all' cases, however, the codes were originally designed to keep internal CO concentrations in individual garage levels below an 8-hour average of 50-100 ppm. These values correspond to common industrial hygiene criteria (see below). Building codes 3-9 presume that compliance with these ventilation requirements will ensure consistency with these industrial hygiene criteria. ACGIH Threshold Limit Values. The American Conference of Governmental Industrial Hygienists (ACGIH) has established recommended exposure limits for a large number of compounds encountered in industrial settings (ACGIH 1982). Two "threshold limit values" have been adopted for CO: 50 ppm for an 8-hour work day during a 40-hour work week, and 400 ppm for a 15-minute exposure (reached no more than four times a day with at least one hour between exposure periods). ACGIH also recommends a ventilation air flow of 500 cfm per parking space in garages with two enclosed levels. Higher per-space air flows are recommended for garages with more than two enclosed levels (Hama, Fredrick, and Monteith 1961). These air flow recommendations are intended to keep CO levels below 50 ppm as an 8-hour average. OSHA Workplace Standards. The federal Occupational Safety and Health Administration (OSHA) originally adopted the ACGIH recommended threshold (50 ppm over an 8-hour period) as a workplace standard for CO exposure. OSHA standards are based on a combination of health effects data(often presuming a healthy working-age male) and the economic feasibility of compliance over a wide range of industrial settings. Conse- quently, OSHA criteria represent pollutant exposure levels producing "acceptable" health effects in an occupational setting. In January 1989 OSHA adopted a more stringent CO standard: 35 ppm averaged over an 8-hour period, with a maximum short-term limit of 200 ppm. No averaging time is specified for the short-term limit. Federal and State Ambient Air Quality Standards. Federal and state ambient air quality standards are based solely on health effects data. The federal and Washington state CO standards are 9 ppm for an 8-hour exposure period and 35 ppm for a 1-hour exposure. The federal standards adopted by the U. S. Environmental Protection Agency (EPA) are intended to protect sensitive members of the public "with an adequate margin of safety." No consideration is given to the costs of achieving the standards. Consequently, ambient air quality standards are generally much more stringent than OSHA or ACGIH criteria. In addition to establishing a numerical CO concentration limit for specified averaging times,federal and state air quality standards contain a limit on the frequency of exceedance: no more than once per year for any location. It's not enough to meet the standards under "average" conditions; they must be met under all conditions that may occur more than once per year. Applicability of Air Quality Criteria to Parking Garages. Air quality criteria applicable to parking garages fall into two groups: those that establish legally enforceable requirements and those most appropriately used to judge public health implications regardless of legal enforceability. The legal enforceability issue depends on whether the location of concern is inside or outside the garage. 3-10 Two types of criteria have clear legal applicability to parking garages. Local regulations require conformity with building code requirements. In addition, OSHA criteria apply to parking garage attendants. Federal and state ambient air quality standards are designed to protect the health of the general public. "Ambient air", however, represents outdoor conditions. The federal ambient air quality standards represent threshold air quality levels that can trigger the application of federal funding sanctions and stationary source construction bans under provisions of the Clean Air Act. In a legal sense, federal ambient air quality standards do not apply inside a parking garage; high CO levels inside a parking garage cannot be used to establish "nonattainment area" designations or to trigger imposition of Clean Air Act sanctions. In the broader context of public health considerations, however, state and federal ambient air quality standards are clearly the appropriate criteria by which to judge potential health effects of CO exposure (see Appendix E). These air quality standards reflect CO exposure levels at which medical effects become detectable in those persons with sensitive physiological conditions. The U.S. Environmental Protection Agency has determined that CO exposures of 50 ppm over 8 hours, 75 ppm over 4 hours, or 125 ppm over 1 hour "would create adverse cardiovascular effects in a large segment of the U. S. population" (U.S. Environmental Protection Agency 1980). Once attention shifts from inside individual parking garage levels to locations outside the garage, federal and state ambient air quality standards assume legal as well as public health significance. Locations outside an above-ground parking garage will be exposed to CO dispersing from each individual garage level. The total exposure at such locations will be the sum (not the average) of the incremental pollutant concentrations contributed by each garage level. Under limited-dispersion meteorological conditions and for locations within a few hundred feet of a garage, this pollutant exposure may exceed the pollutant concentration found inside any individual garage level. Impacts The air quality impacts associated with the proposed project are limited to the potential for localized CO problems. Potential CO concentrations inside and outside.each parking garage alternative have been evaluated with a procedure developed by Jones & Stokes Associates' staff (Sculley 1987). The basic components of the analysis are detailed in Appendix E (Figure E-1). Detailed results of the modeling analysis are presented as a series of tables in Appendix E. An overview of the modeling procedures and a graphical summary of the modeling results also are presented in Appendix E. For the following analysis, the background CO levels are assumed to equal 6.0 ppm for the one-hour average and 3.0 ppm for the 8-hour average. Given these background levels and the ambient standards of 35 ppm (1-hour average) and 9 ppm (8-hour average), the maximum allowable CO concentration from either garage cannot exceed 29 ppm 1-hour or 6 ppm 8-hour without a violation of the state and federal ambient standards. 3-11 Tract A. Air quality analyses were not performed for Tract A since no parking structure is proposed for this portion.of the project. Tract B. For Tract B, two parking garage alternatives were analyzed.Alternative B1, a 3-story, 302,400 square foot parking garage, would service 3 office buildings totaling 286,300 square feet. Alternative B2, a 4-story, 312,000 square foot parking garage, would service one 7-story 285,000 square foot office building. In the analysis that follows, both garages are assumed to be completed by 1993. Alternative B1 would have a capacity of 800 spaces within the garage plus an additional 496 spaces of surface parking. Alternative B2 would also have a capacity of 800 spaces within the garage plus an additional 551 surface spaces. The air quality analysis summarized below and described in Appendix E was conducted only for the parking garage alternatives. Emissions produced by vehicles in the surface parking lots and on nearby roadways are assumed to be accounted for in the background CO concentrations. Because detailed design plans for the parking garages were not available at the time of this analysis, several assumptions were made that are crucial to the impact analysis. For the initial analysis, each parking garage was assumed to have one entrance and one exit lane. Also, the lower levels of each garage were assumed to be 40 percent open to the outside. The top level was assumed to be 100 percent open. Under Alternative'B1, the maximum predicted 1-hour CO concentration exceeds the ambient standard '(35 ppm) from the garage out beyond 300 feet (see Table 3-2). The maximum 8-hour CO concentration exceeds the ambient standard (9 ppm) from the garage out beyond 500 feet. Each of the three office buildings is within 150 feet of parking garage B1, and thus, the occupants could be exposed to unsafe levels of CO (Appendix E describes how the analysis was performed) given the garage design assumptions. The next step was to repeat the analysis for Alternative B1 under the assumption that the garage would have two exit lanes. This is a key assumption because with only one exit lane, long queues develop during the afternoon rush hour causing high CO emission rates from the numerous;cold-start idling vehicles. Table 3-3 shows the CO impacts from Alternative B1 assuming two exit lanes. With two exit lanes, long queues do not develop and the total CO emissions inside the garage are significantly lower.' Under the two exit lane scenario, predicted CO levels (including background concentrations) are well below the 1-hour and 8-hour ambient standards. Figures 3-2 and 3-3 illustrate the maximum CO concentrations as a function of distance from Alternative B-1. Figure 3-2 shows concentrations for one exit lane while Figure 3-3 shows concentrations for two exit lanes. Under Alternative B2, the maximum 1-hour and 8-hour CO concentrations exceed the ambient standard from the garage out to beyond 500 feet from the garage (Table 3-4), assuming one exit lane and 40 percent facade covering. However, if two exit lanes are incorporated into the garage design, then the predicted maximum CO concentrations drop significantly,as shown in Table 3-5. With two exit lanes, the 1-hour concentrations from the garage, including (6.0 ppm background), are less than the 1-hour ambient standard. 3-12 • Table 3-2. Carbon Monoxide Impacts from Renton Garage Alternative B1 with One Exit Lane and 40 Percent Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Garage Level Inside 10 25 75 150 300 500 1000 Level 1 38.2 36.7 34.8 29.5 24.3 17.9 12.8 8.0 Level 2 31.1 26.7 25.4 22.3 18.7 14.0 10.3 6.4 Level 3 5.0 3.4 3.3 3.0 2.7 2.1 1.6 1.0 w Garage 66.7 63.5 54.9 45.7 34.1 24.7 15.4 Background 6.0 6.0 6.0 6.0 6.0 6.0 6.0 TOTAL 72.7 69.5 60.9 51.7 40.1 30.7 21.4 Mean Dispersion Downwind of Garage 8-Hour Average Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Level 1 12.4 11.9 11.3 9.6 7.9 5.8 4.2 2.6 Level 2 8.5 7.3 7.0 6.1 5.1 3.8 2.8 1.8 Level 3 1.4 0.9 0.9 0.8 0.7 0.6 0.4 0.3 Garage 20.1 19.2 16.5 13.7 10.3 7.4 4.6 Background 3.0 3.0 3.0 3.0 3.0 3.0 3.0 TOTAL 23.1 22.2 19.5 16.7 13.2 10.4 7.6 NM Table 3-3. Carbon Monoxide Impacts from Renton Parking Garage Alternative B1 with Two Exit Lanes and 40 Percent Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Garage Level Inside 10 25 75 150 300 500 1000 Level 1 10.7 10.3 9.7 8.3 6.8 5.0 3.6 2.2 Level 2 7.3 6.3 6.0 5.3 4.4 3.3 2.4 1.5 Level 3 1.2 0.8 0.8 0.7 0.6 0.5 0.4 0.2 w 7.1 Garage 17.4 16.5 14.2 11.8 8.8 6.4 4.0 Background 6.0 6.0 6.0 6.0 6.0 6.0 6.0 TOTAL 23.4 22.5 20.2 17.8 14.8 12.4 10.0 Mean Dispersion Downwind of Garage 8-Hour Average Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Level 1 3.2 3.1 2.9 2.5 2.1 1.5 1.1 0.7 Level 2 2.2 1.9 1.8 1.6 1.3 1.0 0.7 0.5 Level 3 0.4 0.2 0.2 0.2 0.2 0.2 0.1 0.1 Garage 5.2 5.0 4.3 3.6 2.7 1.9 1.2 Background 3.0 3.0 3.0 3.0 3.0 . 3.0 3.0 TOTAL 8.2 8.0 7.3 6.6 5.7 4.9 4.2 Figure 3 -2 CARBON MONOXIDE IMPACTS — GARAGE ONLY: Aflem ss el -1 BA.lane 70 • 60 • e0- 40- 0 V • 30- x a z a 20 a • 10- O 0.2 0.4 0.6 0.e 1 DISTANCE FROM C+IIMGE(FT) O /WC HOUR 4 e-HOUR K1 AGE Figure 3 -3 CARBON MONOXIDE IMPACTS — GARAGE ONLY: ANemetlee e1 with 2 Eck Lars 1e 17 16- - 1e- 14- 13 12- 11 - 10- ✓ 9- 7- a a 6 e 4- ✓ 3 2- O 0.2 0.4 0.6 Owe C TANCE FROM :17G�(FT) O MK ROUR 4 0-HOUR mw.oe 1 Table 3-4. Carbon Monoxide Impacts from Renton Garage Alternative B2 with One Exit Lane and 40 Percent Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Garage Level Inside 10 25 75. 150 300 500 1000 Level 1 43.4 41.7 39.6 33.6 27.6 20.3 14.6 9.1 Level 2 34.7 29.8 28.4 24.9 20.9 15.7 11.5 7.1 Level 3 19.8 13.4 13.1 12.2 10.7 8.5 6.3 4.1 't' Level 4 3.2 1.7 1.6 1.5 1.4 1.2 0.9 0.6 LA Garage 86.6 82.7 72.2 60.7 45.7 33.4 20.9 Background 6.0 6.0 6.0 6.0 6.0 6.0 6.0 TOTAL 92.6 88.7 88.2 66.7 51.7 39.4 26.9 8-Hour Average Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Level 1 12.9 12.4 11.8 10.0 8.2 6.0 4.3 2.7 Level 2 10.3 8.9 8.4 7.4 6.2 4.7 3.4 2.1 Level 3 5.9 4.0 3.9 3.6 3.2 •2.5 1.9 1.2 Level 4 0.9 0.5 0.5 0.4 0.4 0.4 0.3 0.2 TOTAL 25.7 24.6 21.4 18.0 13.6 9.9 6.2 Table 3-5. Carbon Monoxide Impacts from Renton Parking Garage Alternative B2 with Two Exit Lanes and 40 Percent Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Garage Level Inside 10 25 75 150 300 500 1000 Level 1 10.7 10.3 9.8 8.3 6.8 5.0 3.6 2.2 Level 2 8.6 7.4 7.0 6.2 5.2 3.9 2.8 1.8 Level 3 4.9 3.3 3.2 3.0 2.7 2.1 1.6 1.0 w Level 4 0.8 0.4 0.4 0.4 0.3 0.3 0.2 0.2 o. Garage 21.4 20.4 17.8 15.0 11.3 8.2 5.2 Background 6.0 6.0 6.0 6.0 6.0 6.0 6.0 TOTAL 27.4 26.4 23.8 21.0 17.3 14.2 11.2 8-Hour Average Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Level 1 3.8 3.6 3.4 2.9 2.4 1.8 1.3 0.8 Level 2 3.0 2.6 2.5 2.2 1.8 1.4 1.0 0.6 Level 3 1.7 1.2 1.1 1.1 0.9 0.7 0.6 0.4 Level 4 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Garage 7.5 7.2 6.3 5.3 4.0 2.9 1.8 Background 3.0 3.0 3.0 3.0 3.0 3.0 3.0 TOTAL 10.5 10.2 9.3 8.3 7.0 5.9 4.8 However, the predicted 8-hour concentrations (with 3.0 ppm background) exceed the ambient standard up to and exceeding 75 feet from the garage. As a result, alternative B2 was modeled assuming two exit lanes and 55 percent facade opening. The results, shown in Table 3-6, reveal that predicted concentrations are less than the ambient CO standards at all distances. Figures 3-4, 3-5, and 3-6 illustrate the maximum CO concentrations as a function of distance from Alternative B-2. Figure 3-4 shows concentrations for one exit lane (40 percent facade opening), Figure 3-4 shows concentrations for two exit lanes (40 percent facade opening), and Figure 3-5 concentrations for two exit lanes with 55 percent facade opening. Implementation of either parking garage alternative would result in possible air pollution problems within and possibly beyond Tract B, assuming each garage had one exit lane and a maximum 40 percent net open area on each level except the top. The maximum predicted CO concentrations would expose those working in the associated office buildings to concentrations above the ambient CO standards during periods of adverse meteorological conditions such as low winds and/or inversions. Mitigation Measures No specific design plans have been prepared for the parking garage. Based on the results of the CO modeling, the parking garage for the Proposed Action (B1) should have the following features to insure that CO levels do not reach unsafe levels in the garage: • Lower levels of each garage deck should be a minimum of 40 percent open to the outside (side facing the rookery must be fully enclosed to minimize disturbance to nesting herons); • The top level must be 100 percent open (but with a facade or wall on the rookery side to minimize line-of-sight to the rookery); and • Two exits should be constructed (on the side of the garage opposite the rookery). 3.4 Water 3.4.1 Surface Water Movement/Quantity Affected Environment There are no surface water features within Tract A. During periods of heavy precipitation, water temporarily pond in small depressions which remained following fill placement and site grading. These features are not large enough to be considered significant. The majority of precipitation infiltrates into the fill except along the north edges where some runoff directly enters the P-1 Pond. Runoff from the east edge of the project enters Springbrook Creek (P-1 Channel) which flows into the P-1 Pond. Water from the 3-17 { Table 3-6. Carbon Monoxide Impacts From Renton Parking Garage Alternative B1 with Two Exit Lanes and 55 Percent Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Distances (feet) from the Garage Footprint Garage Level Inside 10 25 75 150 300 500 1000 Level 1 7.8 7.5 7.1 6.0 5.0 3.7 2.6 1.6 Level 2 6.2 5.4 5.1 4.5 3.8 2.8 2.1 1.3 Level 3 3.6 2.4 2.4 2.2 1.9 1.5 1.1 0.7 w Level 4 0.8 0.4 0.4 0.4 0.3 0.3 0.2 0.2 00 Garage 15.7 15.0 13.1 11.0 8.3 6.1 3.8 Background 6.0 6.0 6.0 6.0 6.0 6.0 6.0 TOTAL 21.7 21.0 19.1 17.0 14.3 12.1 9.8 8-Hour Average Carbon Monoxide Increments (ppm) at • Various Distances (feet) from the Garage Footprint Level 1 2.8 2.6 2.5 2.1 1.7 1.3 0.9 0.6 Level 2 2.2 1.9 1.8 1.6 1.3 1.0 0.7 0.5 Level 3 1.3 0.8 0.8 0.8 0.7 0.5 0.4 0.3 Level 4 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Garage 5.5 5.3 4.6 3.9 2.9 2.1 1.3 Background 3.0 3.0 3.0 3.0 3.0 3.0 - 3.0 TOTAL 8.5 8.3 7.6 6.9 5.9 5.1 4.3 IIIM Figure 3 -4 CARBON MONOXIDE IMPACTS - GARAGE ONLY' Mt 82 ./1 Exl tale ad 407G Open Area 90 D0 1 L 70- b 5 60-\\NNEL., 1.1 70- u ti 40- z 0 a 30- . 1 z O 20- 0 u U 10 ter..`_ 0 1 I I 1 1 I I I 1 0 0.2 0.4 0.6 0.8 1 OISTANCE FROM E(FT) 0 PEAK HOUR 4 8-HOUR AVERAGE Figure 3 -5 CARBON MONOXIDE IMPACTS - GARAGE ONLY: AN BZ./2 Exit Lama and 40X Open Area 22 21 7 19- a 16- . z 17- O 16- 14 11- U 13- a 12- U 11 - . O 10- Z 9- p B 1 7 a 67 O 6 • U 4 3 2- -__'^-- 0 0.2 0.4 0.6 0.8 .1 DISTANCE FRO E(FT) 0 PEAK HOUR 4 8-HOUR AVERAGE P-1 Pond is pumped to the old Black River channel where it flows into the Green River. No detailed drainage calculations regarding existing site flows have been made, but the estimated flow for a 10-year storm is approximately 3.6 cubic feet per second (cfs) (Table 3-7). Tract B is bordered on the west by Springbrook Creek and on the north by a drainage swale which flows west into the P-1 Pond. Springbrook Creek has been channelized through the section adjacent to the site and has little affect on the surface water hydrology of the site. Along the eastern margin of the site a 660-foot section of the old Black River channel meanders north to the drainage swale which forms the north border of the site. The drainage swale on the north edge of the site flows in a well-vegetated flat- bottomed valley approximately 40 feet in width. As the result of high flows, the actual stream has cut a 2- to 3- foot deep channel into this flat bottom valley. The stream is actively eroding the channel bottom and banks. No flow information is available for the stream, but it is apparent that flows are typical of highly developed areas, rising and falling quickly in response to storm events. Approximately 400 feet of the swale lies within the site and is contained in a drainage easement and a Natural Preserve area under the Proposed Action and alternatives. The majority of flow in the swale is runoff from a large part of urbanized north Renton and is conveyed beneath Naches Avenue in a 60 inch stormdrain to a manhole at the northern terminus of Naches Avenue. A portion of this runoff (about 1 cfs) is then pumped east approximately 800 feet to a fountain where the water is released. A small amount of flow from the urban areas north and east of the project site joins the pumped stormwater at this fountain and travels west in a landscaped swale at the northern terminus of Naches Avenue. Flow is discharged to the swale at the northeast corner of Tract B via a 97 by 67-inch arch culvert under Naches Avenue. Although existing runoff from Tract B has not been calculated, the estimated flow for the 10 year storm is about 3.1 cfs (Table 3-7). The only other surface water feature on Tract B is the remnant Black River channel. This area is a relatively well vegetated emergent wetland (see 3.4.2 Wetlands). Surface water, which results primarily from backwatering within the swale at the north side of the site, is present in the channel only during periods of significant precipitation. The upstream basin which feeds the upper end of the channel has been filled and is very small. Water depths within the channel likely range from zero to about 2 feet. Soils remain saturated for most of the year. Because the historic upstream basin has been filled, the primary hydrologic function of the channel is storage of flood flows which occur within the swale at the north end of the site. Without this storage, downcutting within the swale would be significantly greater than presently occurs. Impacts The primary impacts of the proposed projects would result from the increase in impervious surface and the resulting change in runoff volume and timing. Drainage system design and runoff calculations would be subject to the specifications contained in the Renton 3-19 Table 3-7. Approximate Runoff Volumes from Tracts A and.B for a 10-Year Storm, Blackriver Corporate Park, Renton,WA cubic feet per second (cfs) Alternative Existing Future • Tract A Phase 1 1.3 5.3 Phase 2 and 3 2.3 9.1 Tract B* -- -- All volumes given in cubic feet per second (cfs). Volumes are approximate and based on _ the Rational Runoff Method (Bell pers. comm.). * Runoff volumes have not been approximated for Tract B (Bell pers. comm.). 3-20 Storm and Surface Water Drainage Ordinance, (Chapter 29, Sections 4-2901-2918). As part of an agreement relating to land acquisition for the P-1 project, however, on-site detention of runoff from the developed condition is not required for either Tract. On-site project facilities are to be sized to contain the 25 year storm event; the receiving water (P- 1 Pond) will be able to pass the 100 year flow (Price pers. comm.). Tract A. Quantification of runoff impacts have been approximated due to lack of a detailed drainage plan. It can be assumed that runoff from the developed site would be routed through the biofiltration swales to the P-1 Pond. Table 3-7 presents the approximate runoff from a 10 year storm given the proposed site design. Given the large unused volume available in the P-1 Pond, the impact of this volume on the P-1 Pond and downstream facilities would be less than significant. Under No Action (Alternative A2), no change to the hydrology of the area is anticipated. Tract B. Detailed drainage plans have not been prepared for Tract B. Current design calls for runoff to be piped to the east side of the site, routed through biofiltration swales, and then discharged to the Black River channel (Berg pers. comm.). Additional drainage design work, including the capability of the channel at the north end of the site to carry additional flows without erosion, have yet to be completed. Depending on the results of this additional work, other options, such as discharge of runoff from the biofiltration swales directly to the P-1 channel may be considered (Berg pers. comm.). Based on runoff coefficients, storm flows from the site would likely triple once the property is developed. Runoff volumes and timing would be similar under Alternatives B1 and B2. Due to the excess capacity of the P-1 channel, significant impacts to the pond from the additional flows are not anticipated. Mitigation Measures Due to the large storage capacity of the P-1 Pond, no mitigation measures are anticipated for Tract A other than the preparation of a drainage plan (as required by the City of Renton) and proper sizing of drainage facilities. Completion of design flow calculations will allow assessment of the need for additional hydrologic mitigation. Mitigation could include improvements to the channel at the north end of Tract B, or routing stormwater to avoid potentially sensitive areas. 3.4.2 Water Quality/Runoff Affected Environment Tract A. Little information is available concerning the water quality of the areas surrounding Tract A. No recent water quality sampling has been done in lower Springbrook Creek or the P-1 Pond. In the period from 1974 to 1976,water quality was tested quarterly in Springbrook Creek and the Black River (Table 3-8). Turbidity, dissolved oxygen levels, and total coliform levels were found to exceed levels set for State Class A waters by the 3-21 Table 3-8. Historic Water Quality Data (Mean Concentrations of Eight Sampling Dates*) for the Black River and Tributaries, Renton,WA Springbrook Creek at Black Station SR - 167 River Temperature ('C) 9.6 8.5 pH 7.5 7.2 Dissolved Oxygen (mg/1) 11.0 7.7 Turbidity (JTU's) 4.8 22.2 Total Kjeldahl Nitrogen (mg N/1) 0.0260 1.643 Total Phosphorus (mg P/1) 0.094 0.309 Total Coliform (organisms/100 ml) 895 1,171 *Sample Dates: 3/21/74 2/7/75 3/19/76 3/18/77 6/11/74 12/11/75 6/11/76 12/13/74 Source: City of Renton, 1981 3-22 f ' Department of Ecology (City of Renton 1981). Additional sampling took place in October, 1980 when similar pollutant loads were found. Sample results are presented in Table 3-9. Springbrook Creek and the P-1 Pond are still quite turbid, and probably contain typical urban pollutants such as nutrients, particulates, and heavy metals. Runoff from impervious surfaces such as parking lots and erosion from construction are the likely sources of these contaminants. Tract B. Limited historical water quality data is available for the swale (drainage easement) at the north end of Tract B. Sampling results from 1987 testing by Metro of the 60-inch storm outfall from which the majority of the swale's water originates are presented in Table 3-10. Concentrations of coliform bacteria, nitrogen and oil and grease were significantly higher than those in Springbrook Creek for the same sampling period. In order to determine the current water quality within the swale and the effectiveness of the swale at pollutant removal, limited water quality sampling was conducted in the early summer of 1989. Samples were taken from the upstream end of the swale at Naches Avenue and approximately 800 feet downstream where the swale enters the P-1 Pond. Results are presented in Table 3-11. Impacts Water quality impacts from the Proposed Action would include construction and operational impacts. During construction, introduction of sediment to surface waters from erosion would likely be the most significant water quality impact. Following construction, the most significant water quality impact would be the introduction of contaminants associated with runoff from parking areas and landscaping. Tract A. Assessment of construction impacts are difficult without a detailed grading and erosion control plan. In general, it can be anticipated that even with proper erosion control, some sediment will enter lower Springbrook Creek and the P-1 Pond. Depending on the pond volume and pumping schedule, it is possible that some of the suspended material may be pumped to the Green River. Increases in contaminants associated with impervious paved areas would be expected once the building and parking lots are operational. In compliance with Renton policy, biofiltration of runoff through vegetated swales is proposed. Drainage from the west portion of the site (Phase 1, approximately 4.3 acres), will pass through an oil/water separator and then into a vegetated biofiltration swale approximately 200 feet in length. The swale is designed to meet the biofiltration criteria in the new King County Drainage Manual (Bell pers. comm.). These criteria have been developed through cooperative research of the Department of Ecology and other agencies to establish minimum design standards for effective biofiltration. As per these criteria, the swale is designed to treat the two year, 24 hour storm runoff volume (Bell pers. comm.).and can be expected to remove between 50 and 80 percent of the pollutants associated with particulates. The anticipated flow for this storm event is about 1.4 cfs (Bell pers. comm.). Pollutant removal efficiency for larger storms would be significantly reduced as flows increase. No high flow by-pass of the swale is proposed. 3-23 i Table 3-9. Water Quality of Springbrook Creek and . Black.River During October, 1980 City of Renton,WA Storm Sewer Springbrook Outfall Springbrook/ Creek at Near Naches Black River Black River Grady Way Avenue . Fork #3 Near Pump Temperature (SC) 11 14 12 . 12 pH 7.3 7.1 7.2 7.4 Conductivity (umhos/cm2) 287. 190. 175. 277. Dissolved Oxygen (mg/1) 7.5 7.2 7.2 7.3 Turbidity (NTU's) 16 12 14 17 Settleable Matter (mg/1) <0.1 <0.3 <0.1 <0.1 Total Suspended Solids(mg/1) 9.3 7.0 5.0 9.3 ' Ortho Phosphorous (mg/1 as P) 0.17 0.050 0.083 0.14 Total Phosphorus (mg/1 as P) 0.20 0.132 0.089 0.17 Ammonia (mg/1 as N) 0340 0.223 0.107 0.183 Nitrate+Nitrite (mg/I as N) 139 0.49 0.38 0.91 Total Kjeldahl Nitrogen _ (mg/1 as N) 1.55 0.68 <0.50 0.69 Biochemical Oxygen Demand j (mg/1 as N) 23 4.7 <13 2. Lead (mg/1) 0.008 0.025 0.005 0.006 Cadmium (mg/1) 0.0019 0.0019 <0.0005 0.0007 Zinc(mg/1) 0.134 0.071 0.010 0.083 Mercury(mg/1) <0.0004 0.0007 0.0003 0.0002 Copper (mg/1) 0.0007 0.013 <0.002 0.006 Chromium (mg/1) 0.022 <0.0015 <0.0063 0.011 Oil and Grease (infrared)(mg/1) 1.66 12.56 <1.79 <1.35 Total Coliform (MPN/100 mis) 5,266 >19,667 >8,850 >8,160 Fecal Coliform (MPN/100 mis) 1,923 >8,880 1,605 254 - Sampling Dates: 10/8/80, 10/10/80, 10/13/80 Source: City of Renton 1981 ,f 3-24 Table 3-10. Metro 1987 Water Quality Data for Springbrook Creek Parameter Median Minimum Maximum Dissolved Oxygen (DO) 5.8 3.78 9.87 Temperature 10.8 4.6 17.3 Turbidity 20.0 2.2 31.0 Fecal Coliform* 635 110 3600 *geometric mean Monthly sampling at NE corner of Longacres Source: Metro 1988 I 3-25 Table 3-11. Results of 1989 Water Quality Sampling of Naches Avenue Drainage Swale, Blackriver Corporate Park, Renton,WA 6/21/89 7/17/89 Naches Ave. P-1 Pond Naches.Ave. P-1 Pond Fecal Coliform Count, MPN per 300 240 >1600 >1600 100 mis pH, glass electrode 6.7 6.8 6.9 6.7 at 25°C Parts Per Million (mg/L) Chemical Oxygen Demand 12. <10. 24. 20. Total Suspended Solids 12. <2. 28. 7. Nitrate + Nitrite as N 1.1 0.20 0.21 0.23 , Total Kjeldahl Nitrogen 0.6 <0.5 5.3 3.4 Lead <0.01 <0.01 1.1 0.9 Oil & Grease 0.9 0.9 0.13 0.11 Copper 0.004 0.002 <0.01 <0.01 Zinc 0.015 0.016 0.008 0.006 Total Phosphate as P 0.062 0.064 0.051 0.047 ' Cadmium <0.002 <0.002 <0.002 <0.002 ` Chromium <0.005 <0.005 <0.005 <0.005 1 1 3-26 ' Runoff from Phases 2 and 3 of the project will also pass through an oil/water separator prior to discharge into a biofiltration swale. This swale will be approximately 350 feet in length and will be designed to similar standards as those proposed for the Phase 1 swale. Tract B. The primary construction-related impacts associated with this Tract would be the import and placement of large amounts of fill. The potential for erosion is greatest • along the eastern portion of the site where fill would be placed adjacent to the old Black River channel. Depending on the water level in the old channel and drainage channel to the north, some sediment could be carried to the P-1 Pond. If fill is placed and stabilized during the dry season, the amount of erosion would be less than significant. Following construction,water quality impacts would result primarily from pollutants associated with vehicles and landscaping activities. Although current design plans show no specific areas for biofiltration, runoff would be treated in vegetated swales in compliance with Renton city policies (Berg pers. comm.). Depending on final drainage design, impacts such as increased erosion from higher flows in the channel at the north end of the site could also occur. Mitigation Measures Mitigation of construction related water quality impacts for both Tracts would be in the form of an erosion control plan as required by the City. This plan would likely include the following elements: • Identification of clearing limits; • Installation of silt fences around the perimeter of areas to be cleared; • Installation of a rocked construction entrance; • Excavation of sediment ponds and ditches to carry surface flow to the ponds; • Installation of rock check dams in ditches to slow flow and trap sediments; • Phasing of clearing to minimize the amount of exposed soil; • Immediate seeding or covering of exposed cuts as recommended by the geotechnical engineer; • Mulching of all areas exposed for more than 330 days; and • Weekly maintenance of all ponds, ditches and other erosion control features and more frequent maintenance as required by weather. Mitigation for operational impacts on both Tracts would be the installation of maintenance of oil/water separators and vegetated biofiltration swales. Swales would be designed to meet the standards set forth by the Washington Department of Ecology. These swales are effective for removal of pollutants at flows at or below the two year, 24 hour 3-27 storm. For larger storms, some water quality improvement would be gained from detention in the P-1 Pond. The effectiveness of this detention would depend on pond volumes and pumping schedules. Other than biofiltration, mitigation measures for Tract B have not been specified due to the absence of a detailed drainage plan. Mitigation would likely take the form of proper design to ensure that the additional volumes generated by development would not increase erosion in the channel at the north end of the site. 3.5 Terrestrial Resources 3.5.1 Vegetation Affected Environment Tract A. Tract A is characterized by upland herbaceous species growing on the dredge spoils created from the excavation of the former Black River to create the P-1 Pond. The site is characterized by the presence of a variety of upland species contained in commonly used hydroseeding mixtures. Species such as Timothy, blue grass, bentgrass, fescue,and various clovers are present. Other pioneering species include thistle,blackberry, and Scots broom. No trees remain on this site, scattered red alder, cottonwood, and willow shrubs are becoming established in some areas. There are two very small (less that 30 feet in diameter) depressions which contain standing water on the compacted soils during storm events or winter high precipitation times. These depressions are characterized by the presence of scattered smooth rush, toad rush, dagger leaf rush, velvet grass and one cattail plant. These areas will be discussed further in Section 3.4.2. Tract B. Tract B retains more vegetative diversity: there are mature black cottonwood trees and woods present, an extensive shrub zone characterized primarily of red alder and black cottonwood, and an upland herbaceous area which is the remains of the former golf course on the site. Along the west side of Tract B there is a fringe of young red alder and Oregon ash trees along the upper reach of the east bank of Springbrook Creek. Just to the east of these young trees is a line of recently planted Lombardy popular saplings paralleling the bank of the creek. The northeast corner of Tract B is the most diverse: a mature black cottonwood woods remains in this area, as well as wetlands within the old channel of the Black River. The cottonwood woodland is characterized by the presence of mature trees of approximately 100 to 130 feet in height. The canopy is predominantly cottonwood though scattered red 3-28 alder are also present. The subcanopy is dominated by red elderberry, with a layer of red osier dogwood. The herbaceous layer is dominated by stinging nettle, sword fern, foam- flower, and upland sedge. The overall character of the woods is that of a floodplain forest. The soils in the woodland are upland and are characterized by olive brown silt loarns with mottling at about 18 inches. Because of changes in the hydrology of the surroundings this area is no longer subject to flooding or periodic saturation. Within the northeast corner of Tract B are the remains of the Black River channel. The area is characterized by an emergent wetland system which is well established and diversified. This wetland area is discussed in detail in the Wetlands Section. The central portion of Tract B is a mixture of upland grasses and shrubs. The site has been impacted repeatedly in the past. Species such as red alder shrubs and reed canary grass dominate on upland soils. Impacts Tract A. The proposed Alternative Al development on Tract A would result in the permanent conversion of 11.6 acres of grass and shrubland to a developed site of impervious surface and landscaped vegetation. No significant plant species or plant communities occur within this Tract because of past human impacts. The impact to the vegetation resource therefore would not be significant. Under the guidelines set forth in Appendix B, a dense vegetated buffer of native trees and shrubs would be created adjacent to the P-1 Pond and Springbrook Creek on FCDC and City of Renton property. Over time, this vegetated area will provide a vegetation diversity similar to that which historically occurred. This would represent a beneficial impact. Under the Alternative A2 (No Action) existing vegetation would remain and over a long period of time a dense shrub community would likely become established; probably dominated by Scot's broom and red alder. In response to successional patterns it is likely that a deciduous forested system of red alder and black cottonwood would establish over time on a portion of the site, though given the compacted nature of the soils this recolonization may not occur rapidly. Tract B. Under the Proposed Action (B1),phased development of Tract B will result in the loss of 9.3 acres of scrub black cottonwood, alder, Scot's broom and grass vegetation. Because of past disturbance to that portion of the site proposed for development, impacts to vegetation resources will not be significant. Proposed features of the project will be developed to avoid significant vegetation resources of the site, the mature cottonwoods and wetlands. The landscape plan for Alternative B1 shows mature cottonwoods on the south portion of the site preserved within landscaped islands within the surface parking area. Because cottonwoods are shallow rooted, filling or development of impervious surface area should not extend under the dripline of the trees (City of Renton Ordinance No. 4219). 3-29 The Proposed Action would also include the development of dense vegetated buffers of native vegetation adjacent to Springbrook Creek and between proposed surface parking and the great blue heron rookery. The buffer will serve to increase vegetation diversity on the site and will provide a linear swath of undisturbed habitat along the north, west, and east boundaries of the site. This would represent a beneficial impact. Under Alternative B2 (single seven-story building), the impact on vegetative resources would be similar to B1. The area proposed for grading and development of parking and buildings would be identical under the two alternatives. Under Alternative B3 (No Action) existing vegetation would remain and would eventually be replaced by mature cottonwoods and understory over time. Mitigation Measures Mitigation measures for vegetation listed here would also be beneficial to wildlife resources, aesthetics, and protection of the great blue heron. See Sections 3.5.3 Wildlife Resources and 3.5.4 Unique Terrestrial Resources for addition discussion. Mitigation measures include: Tract A and B • FCDC should plant Puget Sound native lowland trees and shrubs as a dense buffer along the edge of the P-1 Pond and Springbrook Creek on property owned by FCDC. Plant species shall include Oregon ash,red alder,cottonwood,willows, Douglas fir,western red cedar,western hemlock, native shrubs, and ferns such as red-osier dogwood, red elderberry, sword fern, snowberry, and vine maple; • FCDC should also cooperate in a shared-cost coordinated planting program with the City of Renton, SCS, and King County Surface Water Management for the portion of the P-1 Pond shoreline along Tracts A and B (e.g., maintenance access road) under the jurisdiction of the City and King County; • Develop detailed planting plan and specifications which mimics native plant community species composition and structure (i.e., spacing and grouping of trees and understory shrubs and ferns); and • Insure protection of mature cottonwoods on Tract B that will be isolated in surface parking and adjacent to buildings by avoiding impervious surfaces beneath tree driplines and following requirements of Ordinance No. 4219. 3-30 3.5.2 Wetlands Affected Environment Within Tract A there are no wetlands of significance. There are two small closed depression areas within the surface of the compacted dredge spoils. These two areas are less than thirty feet in diameter, and are clearly the result of settling within the dredge spoils. Water from precipitation collects in these holes; it cannot infiltrate into the compacted soil, therefore it evaporates leaving a characteristic cracked brittle soil surface. The sparse vegetation within these two depressions consists of a wide variety of various rushes, several wetland grass species such as velvet grass and bentgrass, and one cattail. The areas are technically wetland based on the assumption of an aquic soil (soil which may be upland soil but is covered by standing water for at least one week of the growing season) and the presence of hydrophytic vegetation. These areas provide very restricted, in any, wetland functions. No water quality improvement, biofiltration, or recharge occurs. Storage function is minimal due to their small size and no significant contributing "basin." Habitat value is limited due to their minute size and paucity of vegetation. Within Tract B the.remains of the Black River channel contain a well established palestrine emergent and shrub wetland. The shrub component of the wetland is characterized by willow, red alder, Oregon ash, red osier dogwood, and red elderberry in. dense tangles along the former river banks and extending down into the channel bottoms in several locations. The vegetation within the emergent area is a mosaic of dense stands of both narrow- leaved and broad-leaved cattail, purple loosestrife, smooth rush, and small-fruited bulrush. This dense, tall growth is in contrast to open stands of smartweed most often found within the deepest part of the old channel. Although the wetland area surface was dry at the time of the field visit in mid-June, it appears as if the vegetation is vigorous and stable. Soils within the area are characterized by 2 to 5 feet of a very soft grayish blue organic silt underlain by a heavily mottled sand and silt. The soft soils are deepest in the center and northern portion of the wetland and are thinnest near the upland edge. In the southern portion of the wetland, significant amounts of plant material can be found in the upper horizon. Soils were saturated just below the surface at the time of the wetland evaluation in June. The channel likely contains standing water during the winter months, and may collect some runoff during storm events during the remainder of the year as well. It does not appear as if there is a remaining significant contributing basin to provide a continuous water source all year. The channel area drains to the north towards the excavated channel which enters the property from the east and flows to the Forebay Pond to the west. 3-31 The wetlands are approximately 1.1 acres in size. The diversity of vegetation types and structure provides excellent habitat for passerines and prey species. It is likely that predators use these wetland areas as hunting locations. Some waterfowl use may be provided in the winter months if standing water is present. Biofiltration is provided through the dense mat of smartweed. Stormwater storage is limited due to limited basin input. Overall these small wetlands provide substantial functions and values, especially for wildlife as the sunken channels surrounded by dense blackberry are well protected by human intrusion. " Impacts Tract A. Development of Alternative Al would eliminate the two small depressional areas. Because the depressions provide no significant function or values in context of the larger wetlands within the immediate vicinity, the loss of these two depressions would be of no significance. The No Action Alternative (A2) would leave these areas as is, it is assumed that vegetation composition would change very slowly over time: perhaps a greater density of rushes would occur, and perhaps wetland pioneering shrubs such as hardhack would become established. Tract B. Under Alternatives B1 and B2, the small 0.04 acre wetland would be filled for office buildings and parking areas. No fill would be placed in the Black River channel wetland under any of the Alternatives. Under Alternative Bl, no buffer is proposed between the Phase 1 four-story office building and the south end of the wetland. Shading from the building could result in a change to the species found in the wetland. Under Phase 2, a parking lot would be constructed immediately adjacent to the west edge of the wetland. Alternative B2 would place parking lots immediately adjacent to the south and west edge of the wetland. Lack of a buffer would encourage human intrusion and deposition of trash in the wetland. • It has not been determined where treated stormwater runoff would be released. If treated stormwater was released into the Black River wetland, it is likely that water would pond more frequently and to greater depths than that which occur now. This is particularly true of the south portion of the wetland, where water would pond to about 18 inches prior reaching the invert of the culvert which would pass flow to the north towards the P-1 channel. Over time, this ponding in the south half of the wetland would alter the species composition within the wetland. If all stormwater were discharged to the P-1 channel, the southern portion of the Black River wetland would slowly dry, allowing upland species to become established. The northern portion would likely remain wet from back flooding of the channel at the north end of the site. Mitigation Measures No mitigation measures are needed for the development of the two depressions located on Tract"A and the small 0.04 acre wetland located on Tract B. 3-32 Mitigation measures to reduce the impact of Alternatives B1 and B2 on wetland resources include: • Establish a 25-foot wide no-build buffer zone from the edge of the wetland in the old Black River channel; • Develop a detailed planting plan to revegetate those portions of the buffer zone adversely affected by past construction activities on the site; • The planting plan should include use of native lowland trees and shrubs previously defined in mitigation measures under Section 3.5.1 Vegetation; and • Develop a drainage plan which would incorporate use of biofiltration swales followed by discharge of stormwater into the south end of the Black River wetland. This use of stormwater would provide additional water to the wetland to insure maintenance of emergent vegetation. The following discussion describes the existing wildlife resources on Tracts A and B and nearby the P-1 Pond. A more detailed discussion of the great blue heron, a unique wildlife species found on the sites, appears in Section 3.5.4. 3.5.3 Wildlife Resources Affected Environment Much of the study area (both Tracts A and B) have been substantially altered by past land use activities. In 1984, material dredged from the P-1 Pond by the SCS was deposited on Tract A and portions of Tract B. Wildlife resources of the area prior to that time, were described in the Earlington Park and Blackriver Office Park Draft EISs (City of Renton 1980, 1981). Since 1980, wildlife values have changed as a result of construction of the P- 1 Pond, clearing of a portion of the cottonwood riparian forest north of the P-1 Pond, establishment of a great blue heron rookery in the area (see Section 3.5.4 for a detailed description of great blue heron use of the area) filling of portions of the site and surrounding area, and the overall increase in development and human use in the general area. A majority of Tract A is vegetated with upland grasses. A row of poplars have been planted along the edge of the P-1 Pond and Springbrook Creek, and scattered shrubs occur in isolated patches on the site. The greatest wildlife use on Tract A occurs at the edge of the upland grass of the filled area and the P-1 Pond. The edge (ecotone) of vegetative types typically supports a wide variety of plant species which in turn supports a wide diversity of wildlife species. Given the open grassland habitat of the site, wildlife most likely to utilize the site include avifauna such as California quail,ringnecked pheasant,mourning dove, red- ' tailed hawk, American kestrel, common flicker, starlings, tree and barn swallows, robins, white-crowned sparrows, song sparrows and crows. Waterfowl such as mallards and cinnamon teal may nest, feed and loaf along the edges of the P-1 Pond, and great blue 3-33 herons (both adults and fledged young)use the pond for loafing and hunting when wintering waterfowl are present, the water level in the P-1 Pond is.high and wetlands north of the heron rookery are flooded. Mammalian and amphibian use on Tract A appears limited by the lack of vegetative structure and diversity. Tract B supports more diverse wildlife habitat than does Tract A because of the greater vegetative diversity. While much of the western and southern portion of Tract B has (_ been filled and regraded and now supports grass and scattered shrubs, a large portion of the site supports cottonwood, alder and Oregon ash vegetation. In addition to the species previously mentioned under Tract A,Tract B also supports birds,mammals, amphibians and reptiles more characteristic of forest and transition communities. Examples include ruffed grouse, band-tailed pigeon, Lewis woodpecker, Steller's jay, black-capped chickadee,winter wren, warblers, nuthatch and bushtits. Habitat for mammals and amphibians and reptiles is also greater than on Tract A because of the presence of riparian vegetation and wetlands along the old Black River channel and drainage ditch on the north and east sides of the site. Impacts Tract A. Development of Tract A under the Proposed Action (Alternative Al),will result in the phased permanent conversion of a majority (11.6 acres) of the site 12.7 acre site from grass and scattered shrubs to impervious surface (asphalt, concrete, and steel). Remaining undeveloped area would be a buffer zone along the edge of the P-1 Pond and Springbrook Creek, a portion of which is City of Renton property. Although the Tract A buildings are to be constructed over a three or four year period, all site grading will be accomplished in the initial phase (1990) which will eliminate grass and shrub habitat at all three building sites. The loss of grassland habitat will impact the wildlife species presently using the site. The population numbers and diversity of species will decrease as a result of the reduction in acres of habitat. Populations of those species with home ranges lying within the area proposed for development (e.g., voles, mice) will be eliminated. Mobile species such as birds and larger mammals will continue to utilize remaining adjacent habitat in lower numbers than occurred prior to project development. Development of the site will result in a change in wildlife species composition from natural. to more "urban." For example, a portion of the waterfowl population using the P-1 Pond (e.g., Canada geese, mallards) will become more domesticated, and many of the other bird species typically found in and adaptable to urban settings (e.g., crows, house sparrows, starlings, rock doves, etc.) will become common. Habitat along the shoreline of the P-1 Pond and Springbrook Creek will continue to be used, however, it is unlikely that the area would be sufficient to support species having large home ranges. Few mammals, other than mice, voles, and adaptable predators such as raccoons, striped skunks, and opossum will be sustained. The buffer zone should effectively maintain existing wildlife use within that strip. Waterfowl nesting may be reduced with the reduction or loss of grass areas up-slope of the ponds and with the increased disturbance adjacent to the buffer area. Approximately 11.6 acres of foraging habitat for birds of prey (American kestrel, red-tailed hawk, great-horned owl), will be eliminated and remaining habitat immediately adjacent to the project site will be of reduced value to predators. The proposed three-phase project has been designed following guidelines set forth in Appendix B of this EIS. These guidelines were designed to reduce the impact of the 3-34 project on the great blue heron rookery and use of the P-1 Pond and adjacent riparian forest by other wildlife species. Under No Action, existing wildlife use of the site would continue. Tract B. Under the Proposed Action (Alternative B1), approximately 10.8 acres of the 15.7-acre site (69 percent of the total area) would be developed as building or parking area. Approximately 4.9 acres would remain undeveloped, as drainage easement, buffer area adjacent to Springbrook Creek and the P-1 Pond, and for protection of wetlands in the old Black River channel and great blue heron flight zone. Wildlife habitat loss would include grassland, shrub, small areas of cottonwood/alder (see Sections 3.5.1 and 3.5.2 for a description of impacts to vegetation and wetland resources). Under the Proposed Action, groves of large-diameter cottonwoods adjacent to the Black River channel and near the south portion of the site will be preserved and incorporated into the landscaping of the site. As with the Tract A, the Proposed Action (Alternative B1) for Tract B and Alternative B2 (single seven-story office building), were designed using heron protection guidelines set forth in Appendix B of this EIS and guidance from an environmental constraints analysis conducted during 1989 by Jones & Stokes Associates. The guidelines and constrains analysis were developed to minimize impacts to wildlife and other natural resources on the site, specifically wetlands, significant cottonwood trees, great blue heron and other wildlife use of the P-1 Pond and adjacent areas. Because a significant portion of the site would be developed under the Proposed Action,wildlife habitat values would be low with the exception of the remaining undisturbed habitat in the old Black River channel, along the northern boundary of the site and along Springbrook Creek. Impacts to wildlife resources will be similar to those previously described for Tract A. Wildlife values in the old Black River channel and drainage easement along the northern boundary of the site will remain high since existing vegetation will be maintained and a portion of the site lies adjacent to the heron rookery and undeveloped cottonwood forest along the P-1 Pond (see Section 3.5.4 for a discussion of the great blue heron). The height of the proposed building on Tract B will be 57 feet for the 1990 Phase 1 four-story building, 45 feet for the 1991 Phase 2 three-story building and 90 feet for the 1992 - 1993 seven-story building. The height the buildings will be above the height of a majority of the trees occurring on the site and in the buffer zone along the P-1 Pond. At approximately 100 feet in height the seven-story building will represent a dominant structure on the site. The height,combined with the proposed reflective glass on the south-facing side of the building, would increase the risk of songbirds colliding with the building. Songbirds are most susceptible to collisions during the spring and fall migration periods and when visibility is reduced by poor weather conditions (e.g., fog or rainy weather) and at night (U.S. Fish and Wildlife Service 1950). Under Alternative B2 (single seven-story building), approximately 10.7 acres (69 percent) of the site will be developed for building or parking (see Tables 2-1 and 2-2 and Figure 2-6), an area of impact equal to that of the Proposed Action. As with alternative B1, wildlife habitat will be lost and wildlife populations reduced. The area to be impacted by 3-35 building and parking is primarily grass and shrub (Scot's broom, scrub alder and small cottonwoods) vegetation. Excluded from development under B2 will be the buffer zone between the parking structure and the heron rookery (see Section 3.5.4 and Appendix A for a description of the buffer zone), the historic Black River channel (which by definition is a wetland), mature cottonwood trees located on the north and south portions of the site, and a wetland setback zone 25 feet in width from the historic Black River channel (Figures 2-5 and 2-6). Under this alternative, as with the Proposed Action, a large contiguous area of wildlife habitat will be maintained along the Black River channel and the northern boundary of the site. 'n 1 Under the No Action Alternative, no wildlife habitat would be lost. With no development,vegetation on the site would revert to cottonwood and alder forest and wildlife r use would change with the change in vegetation. Mitigation Measures Tract A. Under Alternative Al (Proposed Action), mitigation measures that would minimize the adverse impact on wildlife resources of the site include: - • Maintenance and planting (as a cooperative program with the City of Renton) of a linear buffer of native vegetation (as previously defined under Mitigation Measures in Section 3.5.1 Vegetation) along the edge of the P-1 Pond and Springbrook Creek. The linear buffer will provide edge (ecotone) of habitat between the open water of the Pond and the developed uplands; and • • Construct all buildings in earth or natural tones with non-reflective coated or tinted glass and hoods on windows (Phases 2 and 3 only)facing the P-1 Pond and heron rookery. Tract B. Under the Proposed Action (Alternative B1), FCDC would construct three buildings with surface parking. Alternative B2 would include construction of a single seven- story office building with a parking garage. Both Alternative B1 and B2 were developed using guidelines and constraints analysis to, among other things, minimize the impact of development on wildlife resources and to make the alternatives less intrusive. The Alternative B1 and B2 site plans included protection of the Black River channel wetland,maintenance and additional planting of a vegetated buffer zone along the north and west end portions of the east boundaries of the site, and maintenance of large cottonwoods on the site. Mitigation measures to further minimize impacts on wildlife resources of the site include: • Plant additional native trees and shrubs in the buffer along Springbrook Creek and between the buildings, parking garage and the heron rookery; and 3-36 • Construct all buildings in earth or natural tones with non-reflective coated or tinted glass and window hoods on windows of all buildings (Phases 1, 2, and 3) facing the heron rookery and Springbrook Creek. The mitigation measures will be effective in maintaining native cottonwoods on the site, providing a buffer zone to the P-1 Pond and Springbrook Creek and a block of contiguous undisturbed habitat on the northern portion of Tract B adjacent to the P-1 Pond and heron rookery. Even with mitigation measures, 11.6 acres of wildlife habitat on Tract A and 10.8 acres of habitat on Tract B will be permanently lost. 3.5.4 Unique Terrestrial Resources Affected Environment Neither Tracts A or B are considered important habitat for listed endangered or threatened species. The site does lie within the range of the bald eagle, and an immature eagle was observed soaring over the site in the spring of 1987, however, no nesting or feeding activity has ever been recorded (Van Wormer pers. comm.). The WDW/Nongame Wildlife Program has identified the Black River riparian forest as supporting a great blue heron colony (Penland, pers. comm.; McAllister pers. comm.). A detailed analysis of life requirements and management guidelines is presented in Appendix B of this EIS. This heron rookery was believed to have been established several years prior to the construction of the P-1 Pond in 1984 (City of Renton 1987). Great blue herons are considered as a proposed monitor species by WDW and as a protected species (McAllister, pers. comm.; RCW 77.16.120). A monitor species is a species having 1) significant popular appeal; 2) requires limited habitat during some portion of its life cycle; 3) is an indicator of environmental quality; requires further field investigation to determine population status; or 5)was justifiably removed from the endangered,threatened or sensitive classification. Great blue herons nest adjacent to the project sites and feed and loaf along the shallow edges of the P-1 Pond. A majority of the use occurs from late February through August; more limited use is made of the P-1 Pond and nest trees at other times of the year. Based on field observations and information on the life history of the great blue heron, the upland grass and shrub/scrub vegetation on Tracts A and B do not constitute important heron habitat. Herons are known to use upland wet pasture areas (such as those found in the Green River Valley) for feeding(feeding on Microtus and amphibians) at certain times of the year, particularly during winter months when feeding in many intertidal areas of Puget Sound is limited by high tides during the daylight hours. 3-37 The great blue heron rookery, known locally as the Black River heron rookery, is located in cottonwood trees on an island formed when the P-1 Pond were constructed from March to August, 1984. The rookery is located approximately 350 feet from the northern boundary of Tract B and 500 feet from the northeastern boundary of Tract A. Based on field observations by Rex Van Wormer, wildlife biologist, during the 1989 nesting season, 25 nest structures were located in three 48-to 54-inch diameter, 140- to 150- foot tall black cottonwood trees. During field surveys conducted by Van Wormer on June 10, 1989, 17 of the nests were observed to be occupied and 8 nests unoccupied. During field surveys conducted in April, 1989,Van Wormer observed 23 occupied nests,6 more occupied nests than were observed during the June survey. The age of the nesting rookery is not well known, however, there is evidence that approximately three nest structures were present at the time of construction of the P-1 Pond in 1984 (Van Wormer 1988). Little nesting information is available prior to 1986. Since 1984, the Black River rookery has been subjected to a variety of disturbances and intrusions. Historical accounts of the rookery prior to 1986 are sketchy, however, Allmendinger(City of Renton 1987)reported seeing nesting herons prior to the construction ,3 of the P-1 Pond and forebay. According to Van Wormer (1988), excavation of the P-1 Pond (including creation of the island supporting the rookery) was carried out from April to September, 1984. Based on review of aerial photographs of the P-1 Pond and heron rookery, draglines and other heavy construction equipment were likely used within 50 to 100 feet of the rookery. During 1987, a large portion of the riparian forest lying approximately 800 feet north of Tract B and between the Burlington Northern Railroad tracks and the P-1 Pond was cleared and partially filled. Logging activity took place from February to mid-March,within 200 feet of the rookery and during a time of nest selection, nest building and pairing. According to Van Wormer (1988), at that time the rookery contained eight nest structures. Since 1987, various degrees of disturbance to the rookery have occurred as a result of construction at the Metro wastewater treatment site (1,500 feet from the rookery), on Oakesdale Avenue (1,100 feet from the rookery), continued routine activities on the Burlington Northern railroad tracks (1,000 feet from the rookery), at the Black River quarry (2,400 feet from the rookery), and on property adjacent to Naches Avenue S.W.(1,000 feet from the rookery). Appendix B of this EIS presents a comprehensive description of the life history and analysis of effects of human disturbance on great blue heron rookeries. Please refer to that appendix for additional information. Impacts The impacts of the Proposed Actions (Al and B1) and Alternatives (B2) on great blue herons and the nesting rookery, were based on information from studies conducted at other great blue heron rookeries in the Pacific Northwest and other parts of the United States and Canada. 3-38 During 1989,the consultant conducted a constraints analysis for Tracts A and B. The purpose of the analysis was to identify building siting factors such as distance to the heron rookery, site topography, vegetative cover (or lack of), shoreline designations, and heron ingress and egress routes to the rookery. This information was used by FCDC to develop project alternatives designed to minimize the impacts on the great blue heron. Limited information is.available from the literature and other heron rookery sites regarding the tolerance of herons to building construction in close proximity to rookeries. Research has shown herons nesting in urban settings to be, in many cases, tolerant of noise and human activities close to nests (Peasley Canyon Rookery, Auburn, WA; Spencer Property, Redmond, WA; Yarrow Bay, Kirkland, WA; Ross Island, Portland, OR; Pigeon Point, Seattle, WA; West Delta Park, OR, and Garabaldi, OR; see Appendix A for detailed discussion). In several cases, heron rookeries have been established within 100 feet of buildings, parking lots and railroad tracks (Appendix B). Herons have been found nesting closest to human use areas at rookery sites where dense vegetation screens the rookeries from human activity (Vancouver, B.C.; Spencer property, Redmond, WA). Tract A. The Proposed Action for Tract A(Alternative Al)was developed by FCDC based on rookery protection guidelines developed by the consultant as a part of environmental constraints analysis. Guidelines for siting of the buildings on Tract A were developed from the aforementioned constraints analysis, the results of past rookery studies conducted in the Pacific Northwest and other areas of the United States, field observations by JSA biologists and taking into consideration management recommendations set forth by resource agencies and biologists (WDW 1988; USFWS 1987; Parker 1980). Guidelines specific to Tract A are as follows: • Establish a no-build zone for that portion of Tract A lying within 600 feet of the nearest rookery tree; • Prior to the construction of buildings, plant trees and dense vegetation at the northernmost portion of the site within no-build zone 600 feet from the nearest rookery tree; • Construct project in phases, with first phase of development furthest from the rookery; • After coniferous vegetation in the buffer zone has achieved a minimum height of 20 feet, begin construction of the Phase 2 and 3 buildings. Buildings should not exceed four stories in height (unless building is set back 1,000.feet or greater distance from the rookery); • Create dense vegetated no-build buffer along the eastern boundary of the site adjacent to Springbrook Creek to provide a vegetated ingress and egress route for herons leaving and returning to the rookery; 3-39 • Construct the building in earth and natural tones; glass facing the rookery should be nonreflective, coated or tinted glass, and hooded to minimize disturbance to , the birds; • Human access to the P-1 Pond should be excluded during the period from February 15 to June 15; and • No exterior construction activities should occur within 600 feet of the rookery during the period from February 15 to June 15. Impacts to heron habitat will be minor because the grass and shrub vegetation on Tract A is not considered heron feeding, loafing or nesting habitat. Heron feeding and loafing is done on the margins of the P-1 Pond and Springbrook Creek, an area to be buffered by vegetation from the proposed project. Under No Action (Alternative A2), there will be no impact to great blue herons. Tract B. As with Tract A, the site plans for Tract B Proposed Action (Alternative B1) and alternatives (B2), were developed by FCDC using the site constraints analysis and heron protection guidelines. Guidelines developed specifically for Tract B include: • Plant trees and dense vegetation at the northernmost portion of the site back 400 feet from the nearest rookery tree; • Any buildings located 400 to 600 feet from the rookery should not exceed four stories in height, with taller buildings only beyond 600 feet; • Create dense vegetated buffer along the western boundary of the site to provide a vegetated heron flight zone along Springbrook Creek; • Construct project in phases, with first phase of development furthest from the rookery; • After coniferous vegetation in buffer zone has achieved a minimum height of 20- feet, begin construction of remaining phases; • Maintain mature cottonwoods,specifically along the historic Black River channel, at the northern portion of the site, and on other portions of the site supporting mature trees (e.g., near the south portion of the site); • Densely landscape surface parking to minimize the visual impact on great blue herons; • Buildings should be constructed in earth or natural tones, and glass facing the rookery should be nonreflective coated or tinted glass, and hooded to minimize disturbance; • No exterior construction activities should occur within 600 feet of the rookery during the period from February 15 to June 15; and 3-40 • Exclude human access to the P-1-Pond during the period from February 15 to June 15. Using the constraints analysis and the heron protection guidelines, portions of Tract B were excluded from development. These areas included wetlands within the old Black River channel; mature cottonwood trees located at the north end of the site, along the old Black River channel, and a scattered locations on the south end 'of the site; heron flight zones located on the east and west sides of the site, and a no-build setback zone 400 feet from the rookery. (See Figure 2-1 for a description of the set-back zones.) Under Alternative B1 (Proposed Action), three office buildings and a three-story parking garage would be constructed on a phased schedule extending from 1990 through 1993. As proposed, Phase 1 (1990) construction would consist of grading that portion of the entire site proposed for future development, constructing surface parking along the southern portion of the site, and constructing a four-story building approximately 930 feet southeast of the heron rookery. So long as the heron protection guidelines are adhered to, and because the proposed structure and parking would be located nearly 1,000 feet from the rookery, no significant impact to herons resulting from Phase 1 construction is anticipated. Under Phase 2, a three-story building and additional surface parking will be constructed during 1991. Since all grading would have been done under the first phase, no construction would occur within 650 feet of the rookery. Under this phase of development, surface parking will be constructed to within 650 feet of the rookery, while the three-story building will be built approximately 1,000 feet south of the rookery. Under Phase 2, no adverse impacts to heron use are anticipated. Under Phase 3, a seven-story office building, a three-story parking garage, and adjacent surface parking will be constructed during 1992 and 1993. The parking garage will be constructed to within 600 feet of the heron rookery, the seven-story building will be located approximately 700 feet south of the rookery, and surface parking to within 400 feet of the rookery. To minimize the impact of the parking structure on heron use of the rookery, the side of the parking structure facing north toward the heron rookery will have no windows or vehicular access or egress. The concrete wall will be heavily vegetated with climbing vines or evergreen trees. All vehicles will enter and exit from the south side of the structure, thereby screening the heron rookery from a substantial portion of the vehicular movement to be generated on the site. Impacts to heron habitat will be minor because the grass and shrub/scrub vegetation on Tract B is not considered heron feeding, loafing or nesting habitat. Heron feeding and loafing is done on the margins of the P-1 Pond and Springbrook Creek and further south in the Green River Valley. Some surface parking will be constructed between the parking garage and the 400- foot setback zone from the rookery. Fast growing deciduous and evergreen trees and shrubs will be planted to provide additional visual buffering. The intermittent use of the parking lot should not adversely affect herons. Viable heron rookeries exist in close proximity to parking lots at the Peasley Canyon rookery near Auburn, Washington, and adjacent to the Delta River Inn in Vancouver, B.C. where herons nest in a row of evergreens located between a freeway and the hotel parking lot. 3-41 The Phase 3 seven-story building is proposed to be constructed approximately 700 - feet south of the heron rookery and immediately adjacent to the no-build heron flight zone along Springbrook Creek. The building will be approximately 90 feet tall, taller than the adjacent vegetation but below the height of the heron rookery trees. Evidence suggests that height of the rookery trees in relation to surrounding land uses and activities is important. Although other viable heron rookeries in Oregon and Washington occur in close proximity to buildings, none of the structures are as tall as the proposed Phase 3 building. In all rookeries field-examined and researched for this EIS, great blue herons either nested in the tallest trees or at a prominent location such as a steep hillside. This preference for high nesting sites may be for ease of ingress and egress to the rookery and for nest defense and security. The close proximity and height of the Phase 3 seven-story building to the heron flight zone may cause herons leaving and entering the rookery to use other routes, or to fly along the westernmost edge of the flight zone adjacent to Tract A. This avoidance is more likely to occur during construction of the building when noise and movement of construction personnel and vehicles is most significant. The long-term impacts of the height and location of the seven-story building on heron use of the site is uncertain. None of the heron rookery case histories evaluated included buildings of the height proposed. Evidence suggests that, with time, herons become accustomed to changes in uses and activities adjacent to feeding and nesting areas. Review of the case histories in Oregon, Washington, and British Columbia showed herons nesting in close proximity to a variety of intrusive activities such as gravel extraction, apartments/condominiums, freeways, parking lots, and single-family developments (see Appendix B for discussion of case histories). On the other hand, the maximum extent to which herons can tolerate disturbance and habitat changes is unknown. As with the Proposed Action, the site plan for Alternative B2 was developed using the siting constraints analysis and guidelines for building location.Under Alternative B2, all site construction(surface parking, four-story parking garage, and a single seven-story office building) would be carried out during 1991. As with the Proposed Action, the Alternative B2 parking garage would be constructed with no windows, entrances or exits facing the heron rookery. The garage would, however,be located approximately 100 feet closer to the heron rookery (approximately 500 feet distance) and would be one story taller than the parking garage proposed under the Proposed Action. The single seven-story Alternative B2 building would be located approximately 725 feet south of the heron rookery. A portion of the building would be screened from the rookery by the parking structure (that portion below four stories in height and directly abutting the parking structure). As with the Proposed Action, extensive landscaping will be provided along the north side of the parking structure to minimize the visual impact from the rookery. The seven-story building would be located approximately 60 feet east of the heron flight zone adjacent to Springbrook Creek. As with Alternative B1, Alternative B2 could potentially cause herons leaving and entering the rookery to use other routes. Given the height of the building, the long term impacts on heron use is unknown. 3-42 Mitigation Measures Mitigation for Tract A and B proposed actions can be accomplished through the use of heron protection guidelines set forth in the Impacts Sections. Additional mitigation could include the following: • Shifting the Alternative B1 (Proposed Action) Phase 3, seven-story building further to the slightly east and south to minimize potential impact to great blue heron; or • Shifting density (i.e., building height) from Tract B to Phase 1 of Tract A to reduce the height of the Phase 3 building. 3.6 Environmental Health 3.6.1 Noise • Affected Environment A description of ambient noise levels on Tract B and adjacent areas was presented in the Earlington Park Draft EIS (City of Renton 1980). In addition, on January 23 and 24, 1990 Jones & Stokes Associates staff conducted 24-hour ambient noise monitoring at the Black River heron rookery and for a comparison, at the Peasley Canyon rookery near State Highway 18, Auburn, Washington. Continuous 24-hour noise monitoring was conducted using a Larson-Davis Laboratories Model 700 noise monitor. Noise from the monitor were downloaded to a micro computer and data presented in spreadsheets and graphics. Detailed results are present in Appendix C of this EIS. A number of noise sources exist in the vicinity of Tracts A and B. These include vehicular noise along Naches Ave. S.W., S.W. 7th Street, Oakesdale Boulevard, and more distant roadways such as I-405, Grady Way and Monster Road;intermittent noise associated with warehouse and light industrial uses south of the sites; low-flying aircraft; occasional rail activities north of the site; and office building construction noise east of the rookery. According to the Earlington Park EIS, the L90 1980 ambient noise levels in the vicinity of Tracts A and B ranged from 47.5 to 51.5 decibals (dBA), with peaks to 78 dBA. Table 3-12 presents a summary of noise data for Black River and Peasley Canyon rookeries. As expected, nose levels are higher at Peasley Canyon than at Black River. The Ldn (day- night weighted average sound level) at Black River was 60.0 dBA and 65.0 dBA at Peasley Canyon. The Peasley Canyon rookery lies adjacent to State Highway 18, a Park-n-Ride lot and West Valley Road. Table 3-13 presents weighted sound levels and human response criteria for various noise levels,while Figure 3-7 and 3-8 present hourly average dBA values and 15-minute internal dBA levels for the two sites. The U.S.Environmental Protection Agency(1974)has identified indoor and outdoor noise limits to protect public health and welfare with an adequate margin of safety. Noise 3-43 Table 3-12. , Noise Data Summary for Black River and Peasley Canyon Rookeries dBAs Statistic Black River Peasley Canyon Leq 56.3 62.1 SEL 105.6 111.4 Lmin 43.0 39.0 Lmax 83.0 84.5 Lpk 103.5 116.0 L10 58.5 64.5 L33 54.5 61.5 LSO 52.5 60.0 L90 46.5 57.0 Hourly Average Leq 56.1 61.9 Ld 57.8 63.8 Le 54.6 61.0 Ln 52.5 56.9 Ldn 60.0 65.0 CNEL 60.3 65.5 All data collected with A-weighted, slow response (8 samples per second) meter settings Leq " Equivalent constant sound level for the specified time period. SEL Single event level (cumulative noise event integrated over a 1-second period). Lmin Minimum 1-second average sound level. Lmax Maximum 1- second average sound level. . Lpk Maximum sound level sampled during the specified time interval (8 readings per second). L10 Sound level exceeded 10 percent of the time. L33 Sound level exceeded 33 percent of the time. LSO Sound level exceeded 50 percent of the time. L90 Sound level exceeded 90 percent of the time. Ld Average daytime (7:00 a.m. - 7:00 p.m.) sound level. Le Average evening (7:00 p.m. - 10:00 p.m.) sound level. Ln Average nighttime (10:00 p.m. - 7:00 a.m.) sound level. Ldn Day-night weighted average sound level. CNEL Community noise equivalent level. Rounding errors cause 24-hour Leq computed from 15-minute Leq to differ slightly from the 24-hour Leq value computed directly by the noise meter. 3-44 Table 3-13. Weighted Sound Levels and Human Response Sound Source dB(A)* Response Criteria --150 Carrier Deck Jet Operation --140 Painfully Loud --130 Limit Amplified Speech Jet Takeoff (200 feet) --120 Discotheque Auto Horn (3 feet) Maximum Vocal Effort Riveting Machine --110 Jet Takeoff (2,000 feet) Shout (0.5 feet) --100 N.Y. Subway Station Very Annoying Heavy Truck (50 feet) -- 90 Pneumatic Drill (50 feet) -- 80 Annoying Freight Train (50 feet) Freeway Traffic (50 feet) — 70 Telephone Use Difficult Intrusive Air Conditioning Unit (20 feet) — 60 Light Auto Traffic (50 feet) — 50 Quiet Living Room Bedroom — 40 Library Soft Whisper (15 feet) — 30 Very Quiet Broadcasting Studio -- 20 -- 10 Just Audible — 0 Threshold of Hearing Typical A-Weighted sound levels taken with a sound-level meter and expressed as decibels on the scale. The "A" scale approximates the frequency response of the human ear. Source: U.S. Council on Environmental Quality 1970. 3-45 Figure 3 - 7 Hourly Average dBA Value _70 m / r 7 _ ./ ; .-' 6 0 / // // J/ / / e- V r Ci D / M7r• / '- / „.-- 7 A- / / / ri I � .J r J / 7 / fi / 7 y ,!- f' r- ri jl FJ I y, iJ / / / / .7 7 ti � x r J x x t /,'-'` x ^� I r Al Tl i4 i /X 'yt /' / ED 7 <x . 1?‹ fk' !I'l i-Pf r%< —1 ✓ / /t /� / J/� r/� ✓ / / % ,1 /fit `. j /?� w 4p -7 7 J 7 ✓ 7 / / ` ? %" 7 7 J 7 Fri IT • :i i•< '< J 7 r 7 Q �:� ;.. . O 20 ..- 7 7 7 7 ..8 7 r 7 / 7 , , 7 , . , tt: i 7 / 57'. 7 7 , i ex / 7 r 7 / / 7 r . / / / 7 / 7 7 7 c f 7 i7 7r 7M / 7 77 7 11 AM 2 PM 5 PM 8 PM 11 PM 2 AM 5 AM 8 AM BEGINNING OF TIME INTERVAL_ %//, PEAS LEY SITE ��` BLACK SITE Figure 3 - 8 15-Minute dBA Levels 75 — -- -- -- - 1 I 70 -1 co 55 0 4......... iil-'1-. n n w la ri Kg <C 60 - Cr11 • la ►1 1.1 r/i a. Ill 21 f\, J rc - II 01 ' ^a t- w 15 - u r 111 r<i ►I I V Z u , ,cs_rglit in 'tir 214 + ' 45 -, 40 I I ` I r I I i r r I t I I I ' i r r IT-1'T 1 rTT-r-1-r"7TTT r 1 u u r I 1 1 AM 2 PM 5 PM 8 PM 11 PM 2 AM 5 AM 8 AM 11 AM BEGINNING OF TIME. INTERVAL 0 PEASLEY SITE -I- BLACK SITE level criteria for commercial and industrial areas are identified as 24-hour Leq values of 70 dB (both outdoors and indoors). Impacts Tracts A and B. Construction noise will be the most significant noise impact associated with the proposed projects and alternatives. The types of construction equipment used for this project will typically generate noise levels of 85-90 dBA at a distance of 50 feet while the equipment is operating (Figure 3-9). No explosives will be used, however, cast- in-place augering or pile driving will be necessary for foundations of each building. According to Lpn (letter dated January 16, 1990) and Golder Associates (letter dated January 25, 1990 and presented in Appendix D), auger cast piling construction is the most likely method to be used on buildings in excess of two-stories on both Tracts A and B. Construction equipment operations are somewhat variable,with episodes of multiple pieces of equipment operating concurrently. The assumption for this analysis is that general construction noise will be 90-95 dBA at a distance of 50 feet from the construction zone. Pile driving if used, will generate peak noise levels of up to 105 dBA; as an hourly average, pile driver noise will be closer to 84 dBA at a distance of 50 feet. Noise levels from auger cast piling construction is lacking, however, it can be assumed that noise levels will likely be comparable to those generated by air drilling rigs which on average produces a sound level of 88 dBA at 50 feet. Noise levels associated with construction will decrease with distance from the construction site. Noise attenuation with increasing distance from construction equipment is generally recognized to be 6 dB per doubling of distance. This attenuation factor ignores other factors such as sound absorption by dense vegetation, and atmospheric effects (wind and humidity conditions, sound reflection from inversion layers, etc.). Assuming 88 dBA noise levels at 50 feet, noise levels at the great blue heron rookery would be 70 dBA assuming the distance to the noise source is 400 feet and 67 dBA at a distance of 600 feet. In the event pile drivers are used, the noise generated is of greater concern. The potential for wildlife disturbance from pile driving is related more to peak noise levels than to average noise conditions. Peak pile driver noise would range from 83 to 87 dBA as measured at the heron rookery (Appendix C). These peak noise levels are 32-40 dBA greater than background noise levels and approximately 17 dBA greater than noise levels from augering. The increase from background to peak noise levels would occur in time intervals of less than 1 second. Given the relatively short distance from Tracts A and B to the heron rookery, there is a clear potential for disturbance to herons from pile driving operations during sensitive time periods. Results of the great blue heron study (Appendix B) for this EIS, indicate that great blue herons have nested successfully in close proximity to substantial generators of noise. Studies have indicated that great blue herons will oftentimes become "acclimated" to an established level of noise intrusion, but will be more bothered by loud intermittent noises. Examples include the Peasley Canyon rookery which is located adjacent to three busy highways, the West Valley Road, Highway 18, and Peasley Canyon Road in Auburn, WA; the Delta River Inn rookery in Vancouver, B.C.; Ross Island, Portland, OR; and West Delta Park, OR. 3-46 NOISE LEVEL (dBA.) AT 50FT 60 70 80 90 100 I10 COMPACTERS (ROLLERS) 1-1 FRONT LOADERS 1 CD z z BACKHOES 1 zo x TRACTORS } , 1 cow SCRAPERS, GRADERS PAVERS H J cc TRUCKS 1 z z CONCRETE MIXERS 1 >- -' ca a CONCRETE PUMPS H w = cc u W J 3 c CRANES (MOVABLE) I o cc a. W z CRANES (DERRICK) , H W acc PUMPS H � a o ``' GENERATORS 1 I F= COMPRESSORS I t— PNEUMATIC WRENCHES U W Win. JACK HAMMERS AND ROCK DRILLS 1 w PILE DRIVERS (PEAKS) } VIBRATOR 1 I SAWS 1 l 1 Note: Based on Limited Available Data Samples Figure 3 - 9 Construction Equipment Noise Ranges Source: Bolt, Beranek, and Newman 1971. The results of noise monitoring at Peasley Canyon provide some idea of the noise levels created by heavy truck traffic, a steep incline on Highway 18 (necessitating downshifting) and relatively high speeds and tolerated by great blue herons. It is highly unlikely that most post-construction noise levels at Black River will ever equal those at Peasley Canyon due to the lack of a major high speed roadway for through traffic and because of the low-noise generating type of land use offered by office buildings. The proposed Tract A and B projects would result in traffic increases on local roadways. Traffic noise conditions are most sensitive to the extent of truck traffic and traffic speed. Traffic noise is less sensitive to changes in traffic volume. A doubling of traffic volume will increase noise levels by about 3 dB (a loudness increase of about 23 percent). Noise associated with daily activities in the office complex should not cause any adverse impact to the great blue heron. Mitigation Measures The following measures should be incorporated into construction contract specifications to prevent construction noise from becoming an unacceptable nuisance condition and to prevent adverse impacts to great blue herons: • Outdoor construction activities should be restricted to 7:00 a.m. to 8:00 p.m. during the summer months and 7:00 a.m. to 7:00 p.m. during the winter months; • All construction equipment should have sound control devices no less effective than those provided on the original equipment; • All construction equipment should comply with pertinent equipment noise standards of the U. S. Environmental Protection Agency; • The use of auger cast-in-place piling construction would be preferable to piling driving; • If pile drivers are to be used, they should be modified or designed to generate peak noise levels of less than 95 dBA at 50 feet (see Appendix C for information on pile driving techniques designed to reduce noise levels); and • Pile driving activity should be limited to the period from August 1 through February 15, the least sensitive time period for great blue heron use on the site. 3-47 3.7 Land and Shoreline Use 3.7.1 Relationship to Existing Land Uses Affected Environment Currently Tracts A and B are undeveloped but are not in natural conditions. Much of the native vegetation has been removed and fill consisting of dredge material from the construction of the P-1 Pond and Channel was previously deposited on the sites. Both parcels have areas of shoreline. Tract A is bounded by the P-1 Pond to the north and the P-1 Channel to the east. Tract B is bounded to the west by the P-1 Channel (Springbrook Creek) and partially to the north by the P-1 Pond. The area in which the site is located is characterized by office and manufacturing parks. Overlooking the proposed site are hillside residential properties located 2,000 to 3,000 feet east of the sites. Impacts Tract A. Under Alternative Al, the use of the site would change from open space to office development. In relation to the adjacent properties the proposal would continue the general office and manufacturing park trend of land uses in the area. The proposed Phase 2 and 3, four-story buildings, would be similar to recent office park development in the area and would therefore not cause a significant impact. The No Action Alternative would not cause a significant impact since it would continue the use of the site as open space. It is likely that in the future the site would be developed in a similar manner to adjacent properties. Tract B. Although Alternative B1 would change the use of the site from open space to office park, the proposed use of the site would be consistent with other uses in the area. This in itself would not be a significant impact. The more significant impact of the proposal would be associated with the size of the seven-story office building proposed under Phase 3, and the precedence that would be set by the proposal. Many of the office buildings recently constructed in the area are three- to four-stories in height. The addition of the proposed Phase 1 and 2, three- to four-story buildings and the Phase 3, parking garage would therefore not cause a significant impact. The most significant impact of the proposal to land use would be the contrast in the height of the proposed Phase 3, seven-story building to other development in the immediate area. In Renton there is only one building taller than the proposed seven-story building; a non-story building located in Renton's downtown area. If the proposed Phase 3 building was to be developed, a precedence could be set for further highrise development in the area. The City of Renton does not, however, have any restrictions on building height (see page A-10 item 4 of Appendix A). Alternative B2 would have essentially the same impact to land use as the Alternative B1 Phase 3 building due to the addition of a seven-story building to the area. 3-48 Under No Action (Alternative B3), the use of the site would continue as open space and would therefore not be an impact to existing land use. Unless the site is purchased by the City it is likely that it would be developed in the future with a similar type of development as the surrounding area. Mitigation Measures Mitigation to insure greater height compatibility with established buildings in the area, could include a reduction in the number of stories in the Phase 3, seven-story Tract B building or a shift in density from Tract B to Tract A. 3.7.2 Relationship to Plans, Zoning and Shorelines Affected Environment Comprehensive Plan. An overview of the purposes of the Comprehensive Plan is presented in Appendix A. The City of Renton Comprehensive Plan of March 1986 is a general and flexible program which is intended to guide development but is up for periodic review by the City. The Plan is divided into General Goals of the City and Area Specific goals and policies. General Goals, Objectives, and Policies. A series of long-range goals, objectives, and policies have been developed relative to the needs of the city. There are 10 goals of the Comprehensive Plan described through the objectives and implemented through policies. Appendix A delineates the relevant goals and objectives. Specific policies under each objective and the consistency of the project to each are shown in Table 3-14. Area Specific Policies-Green River Valley Policy Plan. Following the general goals of the Comprehensive Plan are area specific goals and policies. The project site is included in the Green River Valley Policy Plan (City of Renton 1984). The general goal of this plan is that the Valley Planning Area 'be developed with a diversity of high quality industrial, commercial, and office uses.". The Valley should be the principal growth area for these uses within the City of Renton and development within the Valley should be compatible with the availability of services and transportation and with the environmental objectives of the City of Renton. Specific goals for the Valley are presented in Appendix A and policies of the Area Specific Plan are shown in Table 3-14. Zoning Ordinance. The City of Renton zoned Tracts A and B as _O-P in 1986. Until 1986, the City zoning had been Manufacturing-Park. The purpose of the O-P district is to"provide areas appropriate for professional, administrative,and business offices, certain manufacturing activities, and supportive services in a campus-like setting" (Zoning Ordinance Section 4-718,which is the Office Park District regulations, is included in full as Appendix A of this document). 3-49 Table 3-14. Consistency of Proposed Actions for Tracts A and B with City of Renton Comprehensive Plan Policies Category Policy Assessment of Consistency Environmental Balanced Development Urban development should Alternatives Al and B1-consistent. compensate for the services that it requires. Open Space Natural vegetation, ravines,slopes, and Alternative Al- consistent. water bodies should be preserved to Alternative Bl - partially consistent - retain open space. vegetation to be lost, small portion of wetland filled. Areas or strips of open space should Alternative Bl- partially inconsistent- w be retained and enhanced to serve as buffers previously removed on portions o buffers. of site. Wildlife Habitat Wildlife habitat should be designated, Alternatives Al and B1 - consistent. preserved, and enhanced. Vegetation Desirable natural vegetation should be Alternatives Al and B1 - consistent. retained wherever possible. In unique and/or fragile area, Alternatives Al and B.1 - consistent. desirable natural vegetation should be retained or enhanced. Healthy trees should be retained where Alternatives Al and Bl - consistent. possible. Category Policy Assessment of Consistency Resources Natural resources and areas having Alternatives Al and B1 - consistent. scientific or educational value should be identified and preserved. Surface Drainage Storm waters should be retained on- Alternatives Al and B1 - consistent - site and then released at a natural rate retention on site not required,water and quality. quality improvements on-site proposed. Precipitation should be returned to the Alternatives Al and B1 - partially soil at natural rates near where it falls. consistent-precipitation to be discharged to P-1 Pond. w Development should be designed to Partially consistent- majority of the N facilitate percolation and to minimize site proposed under Alternative B1 for ~ impermeable surfaces. impervious surfaces although proposal is within the guidelines. Development should include Alternative Al and B1- consistent. appropriate design and/or equipment to ensure clean runoff. Waterbodies Public access to publicly- owned areas Alternatives Al and B1 - consistent. along waterbodies should be provided. Development should be designed to Alternatives Al and B1 partially allow the most compatible and consistent - the vegetated buffer will be aesthetic use to be placed near the compatible with the P-1 Pond, waterbodies. especially the wildlife use of it,while buildings and parking will be less compatible. Category Policy Assessment of Consistency Development should be designed and Alternatives Al and B1 - consistent. constructed to incorporate features of waterbodies. Development should be oriented Alternatives Al and B1- consistent. towards waterbodies. Soils Structures should be built only on soils Alternatives Al and B1 - consistent- with adequate load-bearing capacity pilings would.provide structural including structural design adequate to integrity for buildings greater than two- accommodate existing soil conditions. stories in height. Economic tim tv Fiscal Balance Activities should not overextend public Alternative Al and B1 - consistent. facilities or services. Urban Design Landscape Landscaping which enhances the Consistent according to 12/12/89 site primary design should be place around plan. all structures, in the interior of parking lots, and along the periphery of the site. Refuse and/or other unsightly areas Consistent according to 12/12/89 site should be screened and landscaped. plan. Landscaping which is suitable for Alternatives Al and Bl - consistent- screening and buffering should be as long as vegetated buffer is provided between use area. established as recommended. Category Policy Assessment of Consistency Landscaping Design& Maintenance Materials and designs should reflect Alternatives Al and B1 - partially the function, scale, and type of area consistent -the landscape design being landscaped. appears to scale on the site plans although the trees won't reach the size shown for many years, existing cotton- woods to be retained will provide landscape more in scale with proposed buildings. An adequate irrigation system should This will be the responsibility of the be installed where appropriate. City during design approval. Plant materials should be selected to This will be the responsibility of the promote safety and minimize City during design approval. interference with utilities and traffic. Desirable natural vegetation should be Consistent. incorporated into the design where appropriate. All landscaping should be well This will be the responsibility of the maintained. City to enforce. Landscaping should be compatible with Partially consistent - plant species such significant natural conditions. as Lombardy poplar on Tracts A and B not native to area.A majority of the mature cottonwoods would be preserved. Signs Signs should be compatible with the Unable to determine at this point in scale and architectural style of the design process. development. Category Policy Assessment of Consistency Landscaping should be installed This will be the responsibility of the around signs where appropriate. City to determine. Traffic hazards should be minimized To be determined during design by proper location and design of signs. • approval. Visibility of other signs and/or scenic This will be the responsibility of the areas should not be obstructed. City to enforce. Commercial Commercial Structure& Sites Structure should be adequately set Consistent. back and buffered from other uses. to 4t. Site plan design should provide for Setbacks of structures area equate; efficient and functional use of land. the Alternative Bl. Phase 3 seven- story building though could not be buffered adequately from surrounding uses. Some parking will be a long distance to buildings. Transportation Facilities Transportation facilities should be Consistent. coordinated with and integrated into the surrounding land uses. The development of property should Consistent- the developers have • provide for public street improvements contributed to the Oakesdale LID. necessary to serve the site 1 - -� Category Policy Assessment of Consistency Specialized transportation for the This will need to be enforced by the handicapped should be accommodated. City. Maximum consideration should be Consistent. given to aesthetics of transportation facilities. Trails Trails should take advantage of views Consistent. and amenities. To improve pedestrian safety, trails Consistent. should be separated from vehicular traffic. Trails should be constructed to provide Could not be determined at this time: user safety including lighting. Utilities Storm Drainage The man-made storm drainage system Alternative Al - consistent. should incorporate the natural system Alternative B1- partially consistent- with appropriate measures to assure swale at north end of Tract B to be safety. regraded and replanted to provide flow passage and treatment. Polluted water should not be Consistent. discharged into the storm sewer system. New developments should be designed Consistent. to provide for safe collection and discharge of runoff. Category Policy Assessment of Consistency Sanitary Sewers All development should be connected Consistent. to a sanitary sewer system. Area Specific Policies- Green River Valley Policy Plan Urban Design Ample landscaping should be provided Alternative Al - consistent. throughout a developed site, including Alternative B2- partially consistent- along property lines, to provide a ample landscaping is provided on the pleasant environment, minimize the 12/12/89 site plan but the seven-story impact of development,and enhance building could not be adequately the visual experience from adjacent buffered. properties including hillsides. w ti^ In addition, landscaped buffers should be established adjacent to public right- of-way, between areas of incompatible land use,,and long water channels and wildlife habitatsAlternative Al- consistent. Alternative Bl - partially consistent - seven-story building could not be adequately buffered. Parking and loading areas should be Consistent. adequately screened and landscaped. Category Policy Assessment of Consistency The additional 2 percent natural Consistent. landscaping required for developed sites in the Valley by Soil Conservation Service Environmental Mitigation Agreement should not be dispersed throughout a site,but should be aggregated in one portion of the property. Where possible, the required 2 percent landscaping for adjacent properties should be contiguous. The design,placement, and size of To be determined by the City. signs should be compatible with high quality development. Storm Drainage/Flood Control New development throughout the Consistent. Valley should provide on-site and lateral storm drainage as part of the overall storm drainage plan for the Valley. Transportation New development should help finance Consistent. off-site street and traffic control improvements in proportion to the additional traffic impacts created. Utilities New development should provide for To be enforced by the City. utility extensions to service itself. Wetland/Wildlife Wherever feasible, unique natural Alternative Al - consistent. Habitat/Floodplain features should be incorporated into Alternative Bl - partially consistent - a developmental plans to preserve the small portion of wetlands proposed to character of the Valley. be filled. • Category Policy Assessment of Consistency Remaining wildlife habitat in the Consistent - the most significant Valley should be preserved or its loss habitat will be retained. should be mitigated. Areas that provide wildlife habitat, Consistent so long as mitigation such as designated wetland greenbelts measures are carried out. and stream corridors, should be large enough to provide suitable cover for wildlife and buffering from adjacent uses. The City's 1981 Wetlands Study should N/A be used as a basis for establishing the priority of wetlands for acquisition and/or protection. oo 00 A substantial portion of the Black Consistent - significant cottonwood River Riparian Forest should be trees remaining on Tract B will be preserved in its natural state as a preserved. unique remnant of the Valley flora. Whenever feasible, retention of natural Partially consistent- small portion of wetlands should be pursues as an wetland to be filled. alternative to structural flood control measures. Recreation Provision of recreational opportunities Consistent - provision of jogging trail, should be an integral part of exercise stations and horseshoe courts. development in the Valley. Recreational opportunities in the Consistent - recreational facilities Valley that serve both employees and provided can be used by the public as the community should be encouraged. well as employees. Category Policy Assessment of Consistency Firms with large numbers of This will be the responsibility of the employees should develop outdoor City to enforce. recreation facilities. Wherever feasible, Consistent. greenbelt/openspace/wildlife habitats should be managed to include recreational opportunities as a secondary objective. A pedestrian/bicycle path system Consistent - trail will be built to separate from the street system and a eventually connect with trail system at system of bicycle routes should be Fort Dent Park. Q.) incorporated in the developmental plan for the Valley and should connect with vo other trails or recreation destinations. Land Use - Manufacturing The area west of Powell Avenue S.W. Alternative Al - consistent. Phase 3 of Park/Multiple Option and north of S.W. 7th Street between Alternative B1 - consistent- the seven- the P-1 channel and the Building ton story building proposed on Tract B, Northern railroad and generally which is included in this area, is not surrounding the P-1 forebay storage low rise. pond should be specifically designated as manufacturing Park/Multiple Option - Office. The implementation of office and other similar service and light industrial activities in low rise building structures should be encouraged. These small to medium scale office and business park uses should be harmonious with their setting and should take advantage of the amenities offered by the forebay pond and Black river Forest. Large scale warehousing and industrial uses should be discouraged. • Category Policy Assessment of Consistency The remaining areas designated simply Consistent. for Manufacturing Park/Multiple Option are intended to provide the opportunity to choose among a wide range of light industrial and compatible heavy industrial, commercial and office uses. o, 0 Uses. The final decision of the on whether a use is permitted within the O- P Zone is made by the City of Renton Hearing Examiner. Uses must be either listed in the zoning ordinance or be of similar character. Principal uses permitted in the O-P Zone listed in Appendix A. Conditional uses,which are uses normally prohibited within a zoning district but are allowed with a conditional use permit,within the O-P Zone range from churches to on-site hazardous waste treatment and storage facilities. Conditionally permitted uses are allowed when judged by the City Hearing Examiner to be consistent with other existing and potential uses in the zone (Zoning Ordinance Section 4-748(A)). Residential uses are not permitted in this zone. Development Standards. Standards relevant to the proposed project are summarized in Appendix A. The City's Environmental Performance Standards (Zoning Ordinance Section 4- 718[C]7c) pertain to noise, smoke, dust, dirt, odorous and toxic gases, vibration, glare, and heat. Light and glare regulations will be discussed later in this EIS. Under the Landscaping requirements of the Zoning Ordinance (Section 4-744[F]2) is a requirement relevant to the proposal. "Green River Valley: Any development in the Green River Valley shall provide a minimum of two percent (2 percent) of the total site for landscaping suitable for wildlife habitat. This landscaping is in addition to any other landscaping requirements by this Section or any other ordinance." Land Clearing and Tree Cutting Ordinance. This ordinance, which "provides regulations for clearing of land and the protection and preservation of trees," became effective on June 12, 1989. According to this ordinance the developer is required to submit a land clearing and,tree cutting plan to the City for review and approval as part of the environmental review process. All land clearing and cutting activities shall comply with the performance standards set forth in this ordinance which include: • There shall be no clear cutting of trees for the sake of preparing a site for future development; • Trees shall be retained on the site to the maximum extent feasible; • Timing of land clearing and cutting activities may be restricted by the City; • Native Growth Protection Easements may be established on a site which could include the wetlands, shorelines, and cottonwood stands on the proposed sites; • No trees or ground, cover shall be disturbed within 25 feet of the annual high water mark or within 15 feet of the top of the bank of the P-1 Pond or P-1 Channel; • The developer may be required by the City to relocate or replace trees or implement other plantings; 3-61 • No clearing or cutting is allowed in wetlands is permitted except enhancement activities; and • Protection measures are required for all trees that are to remain. The following protection measures are to be employed for trees that are to be retained: • The applicant may not fill, excavate,stack or store any equipment, or compact the earth in any way within the area defined by the dripline of any tree to be retained; • The applicant shall erect and maintain rope barriers or place bales of hay on the dripline to protect the roots supervision shall be provided whenever equipment or trucks are moving near trees; • If the grade level adjoining to a tree to be retained is to be raised, the applicant shall construct a dry rock wall or rock well around the tree with a diameter defined by the dripline; • The applicant may not install impervious surface material within the area designed by the drilline of any tree to be retained; • The grade level around any tree to be retained may not be lowered within the area defined of (1) the area defined by the driline of the tree, or (2) the area around the tree equal to one foot in diameter for each 1-inch of tree caliper; and • The applicant shall prune branches and roots, fertilize, and water as appropriate for any trees and ground cover which are to.be retained. Shoreline Master Program. Renton's Shoreline Master Program was adopted on December 5, 1983 in compliance with the Shoreline Management Act of 1971 revised on July 22, 1985. Construction of the P-1 Pond and Channel was completed in 1984, prior to the 1985 revisions. In the Shoreline Program document no mention is made of the P-i Pond and channel construction; the site's water features are referred to as the Black River and Springbrook Creek. The northern shoreline of the Black River (or the P-1 Pond) west of its confluence with Springbrook Creek (or the P-1 Channel) is designated as natural. Its southern shoreline, which is the shoreline of the site, is designated as Urban. The Shoreline Master Program is intended to be long range, comprehensive and general as to be applicable to all of Renton's shorelines. 'The basic intent of this Master Program is to provide for the management of our City's (Renton's) shorelines by planning for and fostering all reasonable and appropriate uses and to ensure, if development takes place, that it is done in a manner which will promote and enhance the best interests of the general public." The program was formulated as to provide uses for the shorelines in the following order of preference: 3-62 • Recognize and protect the state-wide interest over local interest on shorelines of state-wide significance; • Preserve the natural character of the shorelines; • Result in long-term over short-term benefits; • Protect the resources and ecology of the shorelines; • Increase public access to publicly owned areas of the shorelines; • Increase recreational opportunities for the public in the shorelines; and 1 • Provide for any other element deemed appropriate or necessary. The proposed Phase VII site has a shoreline designation of"Urban"which means that it is an area of high intensity land use including residential, commercial, and industrial development. Tracts A and B of the proposal are located on the south side of the P-1 Pond and are divided by Springbrook Creek. Commercial development is encouraged where commercial development already exists although emphasis should be placed on water- dependent activities. Buildings proposed for the shoreline must be setback a minimum of fifty feet and emphasis should be placed on design and function. Landscaping should be of an indigenous character to the type of waterway. It is encouraged that commercial development incorporate recreational opportunities along the shoreline for the public into the site design. Impacts Tract A Comprehensive Plan. The buildings proposed under all phases of Alternative Al would be consistent with other office buildings recently built in the vicinity, and would therefore be consistent with the City's Comprehensive Plan goals, objectives, and policies. Under Alternative A2 (No Action), non-development of Tract A would not be consistent with the designation of the site as office park in the Comprehensive Plan. Zoning Ordinance. Alternative Al is generally consistent with zoning regulations. Setback, height, (the City has not established building height limitations), landscaping, parking/circulation requirements are met with the proposed site plan. Environmental Performance Standards appear will need to be met, especially with respect to glare impacts from reflective glass and outside lighting. Light and glare impacts are discussed in Section 3.7.3. Under Alternative A2 (No Action), the site would be left as open space which not be consistent with the zoning designation of the site. Land Clearing and Tree Cutting Ordinance. Alternative Al would not require any tree cutting or substantial land clearing. 3-63 With Alternative A2 (No Action) no clearing or tree cutting would occur except possibly at a later date. Any tree cutting or clearing done in the future would be required to be in compliance with this ordinance. Shoreline Master Program. Setback requirements would be met with the proposed site plan. The principal inconsistency is the use of the site as an office park rather than a water dependent commercial use. The Alternative A2 (No Action) would not be consistent with the Shoreline Master Program's encouragement of commercial use of the urban shoreline. The No Action Alternative also would not be consistent with the Shoreline Master Program encouragement of commercial use of the urban shoreline. Tract B Comprehensive Plan. For the most part Alternative B1 (Proposed Action) would be consistent with the Comprehensive Plan. Table 3-14 presents an itemized analysis consisting of the proposed action and the Comprehensive Plan. The primary inconsistency of Alternative B1 is that the Phase 3 seven-story building would not be in keeping with the land use policy of the Green River Valley Policy Plan that office and other similar service and light industrial activities be in low rise building structures. As mentioned previously, the seven-story building proposed would be three- to four-stories taller than other office developments in the area, and, as such would not be in harmony with established intensity. It also would not qualify as a low rise structure. The Phase 1 and 2, three- and four-story buildings would be in character with the more recent land uses. Alternative B2 would have essentially the same impact as Alternative B1 in that the height of the seven-story building would not be compatible with the type of development currently in the vicinity of the site. Alternative B3 (No Action) would not be compatible with the Comprehensive Plan designation of the site since the site would remain as open space. Zoning Ordinance. Alternatives B1 and B2 are consistent with zoning regulations. Setback,height,landscaping,parking/circulation requirements are met with the proposed site plans. Environmental Performance Standards will need to be met, especially with respect to glare impacts from reflective glass and outside lighting. Light and glare impacts are discussed in Section 3.7.3. Under Alternative B3 (No Action), the,site would be used as open space which would not be consistent with the zoning ordinance designation of the site. Land Clearing and Tree Cutting Ordinance. Alternative B1 is generally in compliance with this ordinance except that the plan shows impervious surfaces of the 3-64 proposed parking lot within the dripline of a number of the trees that are to be retained. As required under the ordinance,impervious surface must be located outsite of the dripline. The impacts associated with Alternative B1 would also occur with Alternative B2. With Alternative B3 (No Action Alternative) no clearing or tree cutting would occur except possibly at a later date. Any tree cutting or clearing done in the future would be required to be in compliance with this ordinance. Shoreline Master Program. The general regulations with which Alternatives B1 and B2 are not in compliance are that emphasis be placed on water dependent commercial use within a commercial area and that the design of the site be well coordinated and serve a useful purpose. The office building as proposed is not a water dependent, however, the proposed actions are consistent with the zoning of the property established by the City. Under Alternatives B3 (No Action), the site would remain as open space which would not be consistent with the Master Program which encourages the use of water- dependent commercial use for urban shorelines within a commercial area. Mitigation Measures Tract A. Maintenance of the vegetation on the site once the project is in place must be in compliance with the vegetation management requirements described in the Land Clearing and Tree Cutting Ordinance (see Appendix A). Tract B. Impacts associated with the incompatibility of the seven-story buildings proposed in Alternatives B1 and B2 with the height of buildings in the vicinity of the site could only be mitigated with a reduction in the height of the proposed buildings. Buffering would not be sufficient. Inconsistency with the Land Clearing and Tree Cutting Ordinance regulations regarding protection of trees to be retained on a development site should be mitigated through redesign of the parking lot. No paved surfaces or construction activities are to occur within the dripline of trees to be retained. Maintenance of the vegetation on the site once the project is in place must be in compliance with the vegetation management requirements described in the ordinance (see Appendix A). 3.7.3 Light and Glare Affected Environment Light and glare associated with the Tract A and B study areas is limited to lights from the nearby Metro Renton wastewater treatment facility located to the south, and to street lights along Naches Avenue, S.W. 7th Street and Oakesdale Boulevard. Existing office park development and warehouses east of the site also have night time lighting for parking and buildings. 3-65 Glare in the area is limited to expanses of glass on office park buildings and reflection off shiny metal surfaces and automobile glass. Impacts Proposed Actions for both Tracts A and B and the alternatives would require outdoor lighting for parking, pedestrian paths, and access roads, and indoor lighting for office space, hallways, and foyer. Tract A. Under Alternative Al, lighting for parking areas will have less than 5 foot- candles, a level of light low enough that the light will not be visible from off site (DBA, Inc. pers. comm.). An additional factor minimizing the impacts of parking lights above the site will be that the light structures will be downlighted. At the perimeter of the illuminated area, light is sharply cut-off, similar to a wall of light against darkness, thereby eliminating spill light. The source of light from automobiles will be of greater significance than from outdoor lighting. Automobile lights can be screened from the rookery through the use of dense evergreen foliage or a screening fence. Light from within the building should not be a problem since that light is of a diffuse indirect source rather than a direct beam of light. According to the U.S. Fish and Wildlife Service (1950) direct light beams are the principal cause of bird collisions with structures. Additionally, night lighting within the buildings should be minimal, restricted to security lighting. Tract B. Under both the Proposed Action and alternatives (Alternative B1 and B2), outdoor lighting will consist of 23 inches by 17 inches directed floodlights. These lights will use 250 watt high pressure sodium lamps. The lights will be mounted on 20- to 30-foot tall square steel poles. The impact of parking lights will be as described for Tract A. Because of the height of the proposed Phase 3 building (seven stories), a mass of lit surface area will be immediately adjacent to the great blue heron flight zone on the west side of the site. Alternative B2 and would result in somewhat greater impact than B 1 because of the larger mass and location of the building. Under No Action, there would not be any impact from light or glare. Mitigation Measures Mitigation measures that could be utilized for both Tracts A and B and Alternative B2 include the following: • Use of downlighted light structures in the parking areas to confine light to ground level; • Use of a dense evergreen vegetated screen to reduce the effect of automobile headlights, particularly on Tract A which has no existing dense, tall-growing vegetation; and 3-66 Use of non-reflective coated or tinted glass and hooded windows for the sides of the buildings facing the heron rookery. 3.7.4 Historic and Cultural Resources Affected Environment Extensive surveys and archaeological excavations were conducted in the study area as a part of the proposed Earlington Park project in 1980 and 1981. As a result of reconnaissance and test core surveys, the University of Washington conducted an archaeological excavation of Site 45K153. Artifacts were removed from the site and an report on the excavations was prepared by James C. Chatters, Project Director. In 1984, Tract A was filled with material excavated from the P-1 Pond. As a part of the same excavation program, portions of Tract B were also filled. Impacts Because of the comprehensive archaeological investigations that were previously completed on the site, analysis of cultural and archaeological resources was not identified as a scoping issue by the City of Renton and not included as a part of this EIS. Please refer to the Draft and Final EISs for Earlington Park (City of Renton 1980; 1981) and the final report prepared by James Chatters for further information on this topic. 3.8 Transportation 3.8.1 Traffic Affected Environment Tracts A and B fronted by Oakesdale Boulevard on the south side of the properties. Naches Avenue and S.W. 7th Street abut Tract B on the east and southeast. Oakesdale Boulevard joins S.W. Grady Way to the west of the sites. In 1988, The Transpo Group competed a transportation study for FCDC entitled the "Grady Way Corridor Transportation Improvement Study"which was a comprehensive traffic analysis of projected traffic volumes and needed improvements to accommodate those projected volumes in the area. The Tract A and B sites were a part of that study (Nordin pers. comm.). Impacts Because the development of Tracts A and B as office park were included as a part of the traffic analysis of the Grady Way corridor study, and because Oakesdale Boulevard 3-67 has been designed and constructed to handle projected year 2000 traffic volumes (assuming full build out of the area per what is allowed under the City of Renton's Comprehensive Plan), analysis of transportation was not identified as a scoping issue by the City of Renton and not included as a part of this EIS. Please refer to the Grady Way Corridor Transportation Improvement Study for further information on this topic. 3.9 Public Services and Utilities 3.9.1 Park and Other Recreational Facilities Affected Environment Current recreational use of the site is for the most part passive. Activities might include bird watching and lunchtime relaxation. Off site, several parks and the City of Renton Community Center are within a few miles of the site. The closest parks to the site, within the City of Renton, are Earlington to the north, Philip Arnold to the northeast, Teasdale to the east, and Oakesdale (Springbrook Creek trail) to the south (Chastain pers. comm.). Just west of the site within the Tukwila city limits is Fort Dent Park. As part of the proposed project horseshoe courts and trail system with exercise stations will be developed through the site and is anticipated to be connected to the trail system at Fort Dent Park. Locker rooms and shower facilities will also be included on the site (Coppock pers. comm.). Impacts An incremental increase in use of recreational facilities within Renton and the surrounding area is likely as a result of the proposed office park development which is expected to add approximately 2,300 people to the area during daytime hours (Coppock pers. comm.). Increased use of City recreational facilities will be made by employees of companies occupying the proposed buildings and possibly by families of employees who move to the Renton area. Mitigation Measures • FCDC should work with the City of Renton Parks and Recreation Department to plan and design to the specifications of the City, that portion of the City of Renton pedestrian trails system planned to cross Tracts A and B; and • The trail should be located so as not to conflict with guidelines set forth in Section 3.5.4 and Appendix B of this EIS. 3-68 CHAPTER 4 CHAPTER 4 REFERENCES { 4.1 Literature Cited Earth Consultants,Inc. 1979. Preliminary soil and foundation investigation Earlington Park, Renton, Washington. 9 pp. plus appendices. LPN,Architects and Planners. 1988. SEPA environmental checklist-Blackriver Corporate Park, Phase VII office facility. 16 pp. Metro. 1988. Quality,of local lakes and streams: 1986-1987 status report. Publication 167. Renton, City of. 1986. Compendium - City of Renton comprehensive plan. Renton, City of. No date. City of Renton zoning ordinance. Renton, City of. 1987. Report and decision of the hearing examiner for approval of a special use permit to grade and fill property on Blackriver Corporate Park property (SP-100-86). Renton, City of. 1985. Shoreline master program. 46 pp. Renton, City of. n.d. Miscellaneous correspondence and files associated with Earlington Park and Blackriver Office Park. Renton, Cityof. 1981. Wetlands study - A reconnaissance study of selected wetlands in the City of Renton. Prepared by the City of Renton Planning Department and Northwest Environmental Consultants, Inc. 24 pp. plus app. Renton, City of. 1981. Final environmental impact statement - Black River Office Park. Prepared by R. W. Thorpe and Associates. Renton, City of. 1981. Final environmental impact statement - Earlington Park. Prepared by R. W. Thorpe and Associates. 33 pp. Renton, City of. 1980. Draft environmental impact statement - Earlington Park. Prepared by R. W. Thorpe and Associates. 130 pp. plus app. Renton, City of. 1981. Draft environmental impact statement - Black River Office Park. Prepared by R. W. Thorpe and Associates. 115 pp. Thorpe and Associates. 1981. Final environmental impact statement-Earlington Park, City of Renton. 71 pp. plus app. _ 4-1 Transpo Group. 1988. , Grady Way corridor transportation improvement study. July, 5 1988. U. S. Fish and Wildlife Service. 1950. Migration of birds. Circular 16. Frederick Lincoln, Biologist. 102 pp. U. S. Soil Conservation Service. 1973. Soil survey - King County Area, Washington. 100 pp. ' Van Wormer, R. L. 1989. Letter dated June 29, 1989 to J. Ives regarding 1989 blue heron survey data for Black River Corporate Park heron rookery. 2 pp. 4.2 Personal Communications Berg, R. A., A.I.A. May 2, 1989. President, LPN, Architects and Planners. Meeting with J. Ives, JSA. Chastain, Sam. February 2, 1990. Superintendent. City of Renton Parks and Recreation, Renton, WA. Telephone conversation. Coppock, P. Architect, LPN, Architects and Planners. Letters and numerous telephone conversations with J. Ives and A. O'Leary, JSA. Erickson, D. K. March - July 1989. City of Renton, Zoning Administrator. Numerous telephone conversations and meetings with JSA staff. McAllister, K. July 5, 1989. Wildlife Biologist. Nongame Wildlife Program, Washington Department of Wildlife. Telephone conversation. Miller, M. April July, 1989. Vice President of Development,First City Developments Corp. Numerous telephone conversations with J. Ives, JSA. Nordin, R. July 6, 1989. City of Renton, Assistant Transportation Planning Engineer, Transportation Services Division. Telephone conversation. Penland, S. May 31, 1989. Urban Wildlife Biologist, Washington Department of Wildlife. Telephone conversation. Price, C. June 29, 1989. Stormwater Engineer, City of Renton. Meeting. Roed, B. June 28, 1989. Principal, Bush Roed and Hitchings Engineers. Telephone conversation. Samek-McKague, J. May - July, 1989. City of Renton, Department of Community Development. Numerous telephone conversations and meetings with JSA staff. Van Wormer, R. July 5, 1989. Senior biologist, IES Associates, Olympia, WA. Telephone conversation. 4-2 ► \ APPENDIX A Zoning Code Excerpts and Overview of Comprehensive Plan, Green River Plan, Zoning Ordinances and Development Standards, Land Clearing and Tree Cutting Ordinances OVERVIEW OF CITY OF RENTON COMPREHENSIVE PLAN ZONING CODE,.DEVELOPMENT STANDARDS AND GREEN RIVER POLICY PLAN Comprehensive Plan. The City of Renton Comprehensive Plan of March 1986 is a general and flexible program which is intended to guide development but is open for re- evaluation. "The purposes of the Comprehensive Plan are: • To improve the physical and social environment of the City as a setting for human activities -- to make it more functional, beautiful, decent, healthful, interesting, and efficient; • To insure acceptable levels of access, utilities and other public services to future growth and development; • To promote-the public interest, and the interest of the City at large; • To facilitate the democratic determination and implementation of City policies and development; • To effect coordination in development; • To inject long-range considerations into the determination of short-range actions; and • To provide professional and technical knowledge in the decisions affecting development of the City." (sic)(p.3) The Plan is divided into General Goals of the City and Area Specific goals and policies. General Goals, Objectives, and Policies. A series of long-range goals, objectives, and policies were developed that are relative to the needs of the city. There are 10 goals of the Comprehensive Plan that are described through the objectives and are implemented through the policies. The following outline delineates the relevant goals and objectives. • Environmental Goal: "To establish and maintain a harmonious relationship between the developed community and its natural environment."(p.8) Balanced Development Objective: A balance between economy, availability of services, and the needs of the environment. Open Space Objective: Specified areas should be selected and maintained as open space. A-1 Wildlife Habitat Objective: Wildlife habitats should be designated, preserved and enhanced. Vegetation Objective: Preservation of vegetation to preserve scenic beauty,prevent erosion,protect against floods and landslides,minimize air pollution, and reduce storm drainage costs. Resources Objective: "Natural resources and areas having scientific or educational value should be identified and preserved." This objective is also a policy. Surface Drainage Objective: Surface drainage is to be controlled "to remove harmful materials and sediments, replenish ground water resources, and minimize erosion and floods." Waterbodies Objective: Natural waterbodies are to be preserved "to minimize flood damage,minimize the need for storm drainage facilities, promote recreational opportunities, protect wildlife habitats, and } enhance adjacent uses." Soils Objective: Development is to be compatible with soils. • Economic Goal: 'To promote a sound, diversified economic base. Objectives are to encourage fiscal balance and employment." Fiscal Balance Objective: Balance between municipal costs and revenue. • Urban Design Goal: 'To promote aesthetic and functional harmony and to provide a proper balance of residential, commercial, and industrial areas." Landscape Objective: Landscaping that is used for buffering,screening less attractive activities, and minimizing detrimental impact between uses. Landscape Design and Maintenance Objectives: Design and maintenance to produce a desirable effect and to promote safety. Signs Objective: Signs that are compatible with the site and surrounding area. • Commercial Goal: 'To promote attractive, convenient, viable systems of commercial facilities." - - Commercial Areas Objective: the creation of sound commercial areas and revitalization of declining areas. A-2 Commercial Structure and Sites Objective: Commercial structures and sites that are well-designed, constructed, and maintained. • Transportation Goal: 'To promote a safe, efficient and balanced multi-model transportation system." Facilities Objective: Creation of viable transportation facilities and removal of non-functional ones. Trails Objective: Trails that are well located, designed, constructed, and maintained and form trail systems throughout the City. • Utilities Goal: 'To ensure an adequate supply and equitable distribution of utility services." General Objective: Utilities that are well planned, located, designed, constructed, and maintained and upgraded where necessary. Water Objective: Assurance of an adequate water supply and distribution system. Storm Drainage Objective: Assurance of an adequate storm drainage system which minimizes the impacts on the natural drainage features. Sanitary Sewers Objective: An adequate sanitary sewer system is provided. Area Specific Policies -Green River Valley Policy Plan. Following the general goals of the Comprehensive Plan are area specific goals and policies. The proposed site is included in the Green River Valley Policy Plan. The general goal of this plan is that the Valley Planning Area "be developed with a diversity of high quality industrial, commercial, and office uses. The Valley should be the principal growth area for these uses within the City of Renton. Development within the Valley should be compatible with the availability of services and transportation and with the environmental objectives. Specific goals for the Valley are: • Land Use Goal: "To promote development of the Valley in a diversity of high quality industrial uses, together with commercial and office uses." • Economic Goal: "To promote land development and commerce that will enhance a stable,' diversified economic base for residents, employees, and businesses in the City of Renton." • Environmental Goal: 'To ensure that development of the Valley is harmonious with the natural environmental setting,while minimizing pollution --- and other adverse environmental impacts." A-3 • Urban Design Goal: 'To promote a functional and aesthetic balance among industrial, commercial,office,recreation,and other uses in the Valley through appropriate design standards and a logical land use pattern." • Transportation Goal: 'To promote efficient transportation within the Valley and adequate access to and from the Valley Planning Area." • Urban Services Goal: 'To promote the adequate provision of utility services (including storm drainage control), community facilities, and recreational opportunities in.the Valley."(p.31-32) Zoning Ordinance. The City of Renton zoned Tracts A and B as Office Parkin 1986. Until 1986, the City zoning had been Manufacturing - Park. The purpose of the O- P district is to "provide areas appropriate for professional, administrative, and business offices, certain anufacturing activities, and supportive services in a campus-like setting" (Zoning Ordinance Section 4-718, which is the Office Park District regulations, is included in full as part of this Appendix). Uses. The final decision of the on whether a use is permitted within the O- P Zone is made by the City of Renton Building and Zoning Department. Uses must be either listed in the zoning ordinance or be of similar character. Principal uses permitted in the O-P zone include: • Administrative and professional offices; • Medical and dental offices and clinics; • Financial offices such as banks, savings and loan institutions; • Schools and studios for art, crafts, photography, dance, and music; • Business and professional services; • Research and development; • Educational, cultural, and social activities; • Product servicing, wholesaling, warehousing and storage of articles, products or merchandise from previously prepared natural or synthetic materials, or ferrous or alloyed metals; • Day care facilities; • Hobby kennels (maximum of 8 adult dogs or cats); and • Motion picture theatres and similar recreational and entertainment facilities (Zoning Ordinance Section 4-718 1988). Accessory Uses, which are uses that are incidental to a permitted use, include: A-4 • Parking garages; • Recreational facilities; • Retail sales of products of merchandise produced as a permitted use; • Repair activities ordinarily associated with a permitted use; and • Storage of petroleum or natural gas of a certain capacity and placed underground. Conditional uses,which are uses normally prohibited within a zoning district but are allowed with a conditional use permit, within the O-P zone range from churches to on-site hazardous waste treatment and storage facilities. Conditionally permitted uses are allowed when judged by the City Hearings Examiner to be consistent with other existing and potential uses in the zone (Zoning Ordinance Section 4-748(A)). Residential uses are not permitted in this zone. Development Standards. Standards relevant to the proposal include: • Site Plan Approval-the City requires approved site plans for all developments within the O-P zone. • Setbacks: 60 feet or 20 percent of lot depth, which ever is less, from streets (if the street is a major or secondary arterial the setback shall be a minimum of 30 feet). 20 feet or 15 percent of the lot width, whichever is less, from any property line that does not abut a public street. An increase of 1 foot for every 2,000 square feet larger than 25,000 for the footprint of a building adjacent to any building or structure (structure is defined as "any object constructed or installed by man") up to 100 feet abutting public streets, and 60 feet in other yards. Setback areas shall be unobstructed and unoccupied except for off- street parking and loading, driveways, entrance roads, lawn sprinklers, walkways, landscaping, ordinary and necessary utility service facilities, utility poles, lighting fixtures, identifying and direction signs and underground installations accessory to any permitted use. - - With approval by the City one of the side setbacks may be reduced of eliminated if the total width of both side setbacks is at least twice the width of the minimum setback specified above. A-5 • Height - setbacks shall be increased one foot for each additional foot above 45 feet for buildings adjacent to all uses but other than residential. • Landscaping - a minimum landscaped setback of 20 feet is required from all public streets or rights of way. The City requires landscaping for all areas not covered by buildings,structures, or paved surfaces. In addition,areas set aside for future development, such as Tract A,may be hydroseeded. When parking lots are adjacent to one another, perimeter landscaping is not required. A-6 4-718: OFFICE PARK DISTRICT (0-P): (A) Purpose and Intent:The Office Park Zone (O-P) is established to provide areas appropriate for professional, administrative, and business offices, certain manufacturing activities, and supportive services in a campus-like setting. (Ord. 4186, 11-14-88) (B) Uses: In the Office Park Zone (O-P), the following and similar uses are permit- ted. The Building and Zoning Department may determine that any other use is similar in general character to the following specific uses and is in keeping with the intent of this Zone. Upon such administrative determination,the subject use shall become a principal, accessory or conditional use, whichever is ap- propriate. Unless indicated by the text,definitions of the uses listed in this Zone are consistent with the descriptions in the Standard Industrial Classification Manual. 1. Principal Uses: In the 0-P Zone the following principal uses are permitted: a. Administrative and professional offices. b. Medical and dental offices and clinics. c. Financial offices such as banks, savings and loan institutions. d. Schools and studios for art, crafts, photography, dance and music. e. Business and professional services. f. Research and development. g. Educational, cultural, and social activities. (Ord. 3937, 9-16-85) h. Product servicing, wholesaling, warehousing and storage of articles, products or merchandise from previously prepared natural or synthetic materials, or ferrous or alloyed metals. (Ord. 4186, 11-14-88) 189 A-7 4-718 4-718 I_. B,1) i. Day care facilities. (Ord. 3937, 9-16-85) j. Hobby Kennels: A maximum of eight (8) adult dogs or cats may be permitted after satisfaction of the requirements in Section 4-749(C)1,a. (Ord. 3955, 11-4-85) k. Motion picture theaters and similar recreational and entertainment facilities, subject to the provisions of Section 4-730(C)2. (Ord. 3980, 3-24-86) 2. Accessory Uses: In the 0-P Zone the following uses are allowed where incidental to a permitted use: a. Parking garages. b. Recreational facilities. c. Retail sales of products or merchandise produced as a permitted use. d. Repair activities ordinarily associated with a permitted use. e. Storage of petroleum or natural gas or any of their by-products, provided that the total storage capacity is less than ten thousand (10,000) gallons or other applicable unit of measure, and that storage of such products is placed underground. 3. Conditional Uses: In the O-P Zone the following uses and their accessory uses may be allowed by conditional use permit as provided in Section 4-748 of the City Code: a. Churches. b. Heliports. c. Personal, recreational, and repair services, and retail uses, subject to the standards of Section 4-718(C)2. d. Additional uses as identified in Section 4-748(0)1. (Ord. 3937, 9-16-85) e. On-site hazardous waste treatment and storage facilities. (Ord. 4186, 11-14-88) 4. Prohibited Uses: In the 0-P Zone the following uses are prohibited: a. Residential uses. b. Automobile, motorcycle, truck, boat, mobile home, trailer, and recreational vehicle sales, rental, repair, service and storage activities, except repair and maintenance may be permitted if incidental to a permitted use. c. Any outdoor storage or display of materials or products. d. All other uses not included in Section 4-718(B)1 through 4-718(B)3. (Ord. 3937, 9-16-85) e. Off-site hazardous waste treatment and storage facilities. (Ord. 4186, 11-14-88) A-8 189 4-718 4-718 (C) Development Standards: In the O-P Zone the following development standards shall apply, except as otherwise provided by this Section. 1. Site Plan Approval: Site plan approval shall be required for all developments within the O-P Zone. A building site plan shall be filed and approved in accordance with the City Code prior to issuance of any building permits. Each building or other development permit issued shall be in conformance with the approved site plan. 2. Standards for Retail and Selected Service Uses: For those service and retail uses identified in Section 4-718(B13,c, the following standards shall apply: a. The design of structures, including signs, shall be generally consistent in character with surrounding uses. No drive-up windows or outside automobile service shall be permitted. b. No exterior display of merchandise shall be permitted. c. In order to avoid the negative impacts of strip commercial development: (1) Retail or selected service uses shall be developed as part of larger, planned commercial, office or industrial complexes having common architectural or landscaping themes. Such retail or service uses shall not stand alone and shall not occupy more than fifty percent (50%) of a jointly developed building complex. (2) Direct arterial access to individual uses shall occur only when alternative access to local or collector streets or consolidated access with adjacent uses is not feasible. (3) Roof signs shall be prohibited. Free-standing signs shall not exceed ten feet (10') in height and shall be located at least twenty feet (20') from any property line, except for entrance and exit signs. 3. Setbacks: a. Streets: All buildings and structures shall be located a minimum of sixty feet (60') or twenty percent (20%) of the lot depth, whichever is less, from any public street or highway property line. In any case, if the adjacent public street is a major or secondary arterial, the setback shall be at least thirty feet (30'). b. Other Yards: All buildings and structures shall be located a minimum of twenty feet (20') or fifteen percent (15%) of the lot width, whichever is less, from any property line which does not abut a public street or highway. c. Adjacent to Large Structures: The required yard setbacks adjacent to any building or structure with a building footprint greater than twenty five thousand (25,000) square feet shall be increased one foot(1')for each additional two thousand (2,000) square feet of building footprint, up to a maximum of one hundred feet (100') abutting public streets, and sixty feet (60') in other yards. 189 A-9 4-718 4-718 C,3) d. Adjacent to Residential Lots: Whenever a proposed use in the 0-P Zone shares a common property line with a lot that is designated any residential use on both the City of Renton Comprehensive Plan and Zoning Map, the minimum setback contiguous to the common property line shall be fifty feet (50'). Whenever an adjacent lot contains a residential use and either the Comprehensive Plan or zoning designation or both is something other than residential, then the appropriate setback and landscaping adjacent to the residential lot shall be determined by site plan approval. A site plan decision to require more than the minimum setback and landscaping shall consider the long term viability of the residential use, the presence of other residential uses in the surrounding area, and such other indications of stability as owner- occupancy and housing condition. e. Use of Setback Areas: All required setback areas shall be unoccupied and unobstructed except for off-street parking and loading, driveways, entrance roads, lawn sprinklers, walkways, landscaping, ordinary and necessary utility service facilities, utility poles, lighting fixtures, identifying and direction signs and underground installations accessory to any permitted use. f. Flexible Setbacks: With site plan approval and subject to applicable Building and Fire Codes, one of the side setbacks (not adjacent to a public street or residential use, as defined in Section 4-718(C)3,d) may be reduced or eliminated if the total width of both side setbacks is at least twice the width of the minimum setback specified in Section 4-718(C)3,b above; and the rear setback not adjacent to a public street may be reduced or eliminated if the front setback is increased accordingly. The site plan decision shall be based on a finding that, with reduced setbacks, the architectural design, building orientation, circulation, noise and glare of the proposed project will be compatible with adjacent uses and with the purpose and intent of the 0-P Zone. 4. Height: Building heights in the O-P Zone shall be established with consideration to adjacent land uses and shall be determined as follows: a. Adjacent to Single Family/Low Density Multi-Family Uses: No height limit shall be required provided that for each one foot (1') of building height there shall be provided one foot (1') of yard setback on the periphery of the site where the office park use is adjacent to a single family or low density multiple family use located on a lot designated Single Family or Low Density Multi-Family on the City of Renton Comprehensive Plan and Zoning Map. b. Adjacent to All Other Uses: No height limit shall be required provided that all required yard setbacks adjacent to such other uses shall be increased one foot (1')for each additional one foot (1') of height above forty five feet (45'). c. These setback/height requirements cannot be modified by application under the P.U.D. process. 5. Landscaping: a. There shall be a minimum landscaped setback of twenty feet (20') from all public street or highway rights of way. A-10 1285 4-718 4-718 C,5) b. There shall be a minimum landscaped setback of ten feet (10') or one-half ('A)the required setback, whichever is less, from all other property lines. c. A minimum of twenty percent (20%) of the site shall be retained in landscaped open space. A maximum of one-half (' ) of this requirement may be on the roofs of structures, provided employees and the public have access to the area. A maximum of seventy five percent (75%)of this requirement may be within the required perimeter landscaping. The twenty percent (20%) minimum landscaping requirement may not be reduced if a site is developed as a P.U.D. • d. All areas not covered by buildings, structures or paved surfaces shall be landscaped. Areas set aside for future development on a lot may be hydroseeded. e. Where parking lots are adjacent to one another, perimeter landscaping shall not be required. f. Any wall surface greater than thirty feet (30') in width lacking windows or doors shall be softened by landscaping or architectural'features, such, as change of texture or wall modulation. Such landscaping shall include trees over six feet (6')in height placed no more than thirty feet(30')on center or in clusters. g. With site plan approval, the perimeter landscaping setbacks required by Section 4-718(C)5,a and b above may be reduced in width up to fifty percent (50%) if the equivalent square footage of landscaping is provided elsewhere within the site. Site plan approval shall be based on a finding that the alternative landscaping arrangement provides buffering and site amenities equal to or better than that which would be achieved by strict application of the Code. The relocated landscaping shall not be located within the rear setback of the site. 6. Refuse: No refuse, trash, rubbish or other waste material shall be dumped, placed or allowed to remain outside a permanent building, except in nonflammable, covered containers or dumpsters, which shall be screened by fences or landscaping. No refuse shall be stacked higher than the screening fence or landscaping. 7. Parking/Circulation: Parking and circulation standards required shall be as follows: a. Access: The principal access shall be from an arterial or collector street and shall be oriented to the least traveled street whenever two (2) or more such arterials or collectors abut the site. b. Parking/Circulation: Parking and circulation areas along a common lot line with a residential use located on a lot designated as a residential use on both the City of Renton Comprehensive Plan and Zoning Map shall be allowed only if a ten foot (10') wide sight-obscuring landscaping strip and a six foot (6') high solid fence are provided along the common boundary line. c. Parking and Loading: (1) See Chapter 22, Title IV of the City Code. 1285 A-11 4-718 4-718 C,7,c) (2) All loading docks and roll-up doors shall be located at the rear of buildings or screened so that they are not visible from any point along the abutting public right of way. (3) At no time shall any part of a vehicle be allowed to extend into a public right of way while the vehicle is being loaded or unloaded. All loading and unloading maneuvers shall be conducted on private property. 8. Environmental Performance Standards: The following minimum standards shall be met by all activities within the 0-P Zone. For all activities which may produce objectionable or otherwise prohibited conditions, the property owner or lessee shall furnish design specifications or other scientific evidence of compliance with these standards. a. Noise: See Title VIII, Chapter 11, Noise Level Regulations. b. Smoke: (1) Visible grey smoke shall not be emitted from any source in a greater density of grey than that described as No. 1 on Ringlemann Chart. • (2) The provisions applicable to visible grey smoke shall also apply to visible smoke of a different color but with an equivalent apparent opacity. c. Dust, Dirt, Fly Ash or Airborne Solids: No observable dust, dirt, fly ash or airborne solids shall be emitted. d. Odorous Gases and Matter: No odorous gases or matter in a quantity sufficient to evoke a response from the average person beyond the exterior property lines shall be emitted. e. Toxic Gases and Matter: No emissions of toxic gases or matter shall be permitted. f. Vibration: No vibration shall be permitted to exceed 0.003 of one inch (1") displacement or 0.03 (g) peak acceleration, whichever is greater, as measured at any point outside the property lines of the lot or site. This shall apply in the frequency range of zero to five thousand (0 - 5,000) cycles per second. Shock absorbers or similar mounting shall be allowed to permit compliance with this specification. g. Glare and Heat: (1) No glare and heat from any source shall be permitted to be unreasonably objectionable beyond the exterior property lines of a lot or site. (2) All exterior or wall mounted lighting fixtures shall be directed away from public streets or rights of way. Exterior lighting fixtures shall be equipped with hoods or reflectors such that direct light rays extend no more than ten feet (10') beyond the nearest property line. 9. Signs: See Chapter 19, Title IV of the City Code. (Ord. 3937, 9-16-85) A-12 1285 4—7 19 4-719 4-719: AIRPORT ZONING: (A) Zones: In order to regulate the use of property in the vicinity of the airport, all of the land within two (2) miles south and one mile east and west of, or that part of the area that is within the City limits of Renton, Washington, whichever is nearest the boundaries of the airport, is hereby divided into airport approach, transition and turning zones. The boundaries thereof are shown on the Renton Airport Approach Plan numbered No. 1, dated March 1, 1956, which Plan is made a part hereof. (B) Height Limits: Except as otherwise provided in this Code, no structure or tree shall be erected, altered, allowed to grow or be maintained in any airport approach zone or airport turning zone to a height in excess of,the height limit herein established for such zone. For the purposes of this regulation, the following height limits are hereby established for each of the zones in question: (Ord. 1542, 4-17-56) 1. Approach Zones (Shaded Dark Red on Plan): Height limitation to be one foot (1') in height for each forty feet (40') lateral separation from a line which is two hundred feet (200') south from the "Displaced Threshold" at Station No. 10+00 as shown on revised Renton Airport Approach Plan, No. 1--R, dated May 17, 1960, which Approach Plan is filed herewith and by this reference is made a part hereof. (Ord. 1829, 5-17-60) (See following page for continuation of Section 4-719[B)) A-13 CITY OF RENTON, WASHINGTON ORDINANCE NO. 4219 AN ORDINANCE OF THE CITY OF RENTON, WASHINGTON, AMENDING TITLE IV (BUILDING REGULATIONS) OF ORDINANCE NO. 1628 ENTITLED "CODE OF GENERAL ORDINANCES OF THE CITY OF RENTON" BY ADDING A NEW CHAPTER ENTITLED LAND CLEARING AND TREE CUTTING ORDINANCE AND ESTABLISHING PENALTIES. THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO ORDAIN AS FOLLOWS : SECTION I. Title IV (Building Regulations ) of Ordinance No. 1628 entitled "Code of General Ordinances of the City of Renton" is hereby amended by adding the following chapter: CHAPTER 36 LAND CLEARING AND TREE CUTTING ORDINANCE 4-3601: TITLE This ordinance shall be hereinafter known as the "Renton Land Clearing and Tree Cutting Ordinance, may be cited as such, will be hereinafter referred to as "this ordinance, " and shall constitute Chapter 36, Title IV. 4-3602: PURPOSE This Ordinance provides regulations for the clearing of land and the protection and preservation of trees and associated significant vegetation for the following purposes : A. To promote the public health, safety and general welfare of the citizens of Renton; B. To implement the policies of the State Environmental Policy Act of 1971 as revised in 1984; C. To preserve and enhance the City's physical and aesthetic character by preventing indiscriminate removal or destruction of trees and ground cover; A 14 ORDINANCE NO. 4219 D. To implement and further the goals and policies of the City's Comprehensive Plan for the environment, open space, wildlife habitat, vegetation, resources, surface drainage, watersheds, and economics; E. To ensure prompt development, restoration and replanting, and effective erosion control of property during and after land clearing; F. To promote land development practices that result in a minimal adverse disturbance to ti existing vegetation and soils within the City; G. To minimize surface water and groundwater runoff and diversion; H. To aid in the stabilization of soil, and to minimize erosion and sedimentation; I. To minimize the need for additional storm drainage facilities caused by the destabilization of soils; J. To retain clusters of trees for the abatement of noise and wind protection; K. To acknowledge that trees and ground cover reduce air pollution by producing pure oxygen from carbon dioxide; L. To preserve and enhance wildlife and habitat including streams, riparian corridors, wetlands and groves of trees; M. To promote building and site planning practices that are consistent with the City's natural topographical and vegetational features while at the same time recognizing that certain factors such as condition (e.g.. disease, danger of falling, etc.), proximity to existing and proposed structures and improvements, interference with utility services, protection of scenic views, and the realization of a reasonable enjoyment of property may require the removal of certain trees and ground cover, N. To promote the reasonable development of land in the City of Renton. • 4-3603 : DEFINITIONS A. CALIPER shall mean the diameter of any tree trunk as measured at a height of four and a half (4 1/2) feet above the ground on the upslope side of the tree. . B. CREEK means those areas where surface waters flow sufficiently to produce a defined channel or bed. A defined channel or bed is indicated by hydraulically sorted sediments or the removal of vegetative litter or loosely rooted vegetation by the action. of moving water. The channel or bed need not contain water year-round. This definition is not meant to include storm water runoff devices or other entirely artificial watercourses unless they are used to store and/or convey pass-through stream flows naturally occurring prior to construction of such devices. C. DEVELOPED LOT shall mean a lot or parcel of land upon which a structure(s) is located. which cannot be more intensively developed pursuant to the City Zoning Code. and which cannot be further subdivided pursuant to City Subdivision ordinance. D. DRIP LINE of a tree shall be described by a line projected to the ground delineating the outermost extent of foliage in all directions. A-15 ORDINANCE NO. 4219 E. ENHANCEMENT .ACTIVITIES shall mean removal of noxious or intrusive species, plantings of appropriate native species and/or removal of diseased or decaying trees which pose a clear and imminent threat to life or property. Enhancement activities shall not involve the use of mechanical equipment. Enhancement activities may include the removal of pests which pose a dear danger to public health provided that such danger is certified by the King County Department of Public Health. F. GROUND COVER shall mean small plants such as salal, ivy, ferns, mosses, grasses or other types of vegetation which normally cover the ground and includes trees of less than 6 inches caliper. G. GROUND COVER MANAGEMENT shall mean the mowing or cutting of ground cover in order to create an orderly appearing property so long as such activities do not disturb the root structures of the plants. Ground cover management shall include the removal of vegetative debris from the property. H. LAND CLEARING means the act of removing or destroying trees or ground cover including grubbing of stumps and root mat from any undeveloped lot, partially developed lot. developed lot, public lands or public right-of-way. LAND DEVELOPMENT PERMIT means a preliminary or final plat for a single family residential project; a building permit; site plan; or preliminary or final planned unit development plan. J. LAKES are natural or artificial bodies of water of two or more acres and/or where the deepest part of the basin at low water exceeds two meters (6.6 feet). Artificial bodies of water with a recirculation system approved by the Public Works Department are not included in this definition. K. MECHANICAL EOUIPMENT shall include all motorized equipment used for earth moving, trenching, excavation, gardening, landscaping, and general property maintenance exceeding twelve (12) horsepower in size. L. NATIVE GROWTH PROTECTION EASEMENT is. a restrictive area where all native, pre- development vegetation shall not be disturbed or removed EXCEPT for removal pursuant to an enhancement program approved pursuant to this Chapter. The purpose of an Easement is to protect steep slopes, slopes with erosion, landslide and seismic hazards, creeks, wetlands and/or riparian corridors. This Easement shall be defined during the review process pursuant to Section 4-3613, and shown on the recorded plat or short plat. M. PARTIALLY DEVELOPED LOT shall mean a lot or parcel of land upon which a structure is located and which is of sufficient area so as to be capable of accommodating increased development pursuant to the Renton Zoning Code: or which may be subdivided in accordance with the City of Renton Subdivision Ordinance. N. PERSON shall mean any person, individual, public or private corporation. firm. association, joint venture. partnership, owner. lessee, tenant, or any other entity whatsoever or any combination of such. jointly or severally. O. RF.MOVAi. is the actual removal or causing the effective removal through damaging. poisoning. root destruction or other direct or indirect actions resulting in the death of a tree or ground cover. A-16 ORDINANCE NO. 4219 P. ROUTINE VEGETATION MANAGEMENT shall mean tree trimming. tree tonning and ground cover management which is undertaken by a person in connection with the normal maintenance and repair of property. O. TREE shall mean any living woody plant characterized by one main stem or trunk and many branches and having a caliper of six inches or greater, or a multi-stemmed trunk system with a definitely formed crown. R. TREE CUTTING shall mean the actual removal of the above ground. plant material of a tree through chemical, manual or mechanical methods. S. TREE TRIMMING shall mean the pruning or removal of limbs provided that the main stem is nor severed and no more than 40% of the live crown is removed. T. TREE TOPPING shall mean the severing of the main stem of the tree in order to reduce the overall height of the tree provided that no more than 40% of the live crown shall be removed during any topping. U. UNDEVELOPED LOT shall mean a platted lot or parcel of land upon which no structure exists. V. WETLANDS are those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support and that under normal circumstances do support, a prevalence of vegetation typically adapted to life in saturated soil fonditions. Wetlands generally include swamps. marshes, bogs and similar areas. 4-3604: ADMINISTERING AUTHORITY The City's Director of Community Development, or his duly authorized representative, is hereby authorized and directed to enforce all the provisions of this Ordinante. 4-3605: GENERAL PROVISIONS A. There shall be no tree cutting or land clearing on any site for the sake of preparing that site for future development unless a land development permit for the site has been approved by the City. B. Tree cutting is permitted as follows except as provided in Section D below: 1. On a developed lot; 2. On a partially developed or undeveloped lot provided that: a. No more than three trees are removed in any twelve month period from a property under 35.000 square feet in size: and b. No more than six trees are removed in any twelve month period from a property over 35.000 square feet in size. A 17 ORDINANCE NO. 4219 C. Land clearing in conformance with the provisions of Sections B and D is permitted on a developed. partially developed or undeveloped lot for purposes of landscaping or gardening provided that no mechanical equipment is used. D. No tree cutting or land clearing is permitted within 25 feet of any shoreline area. within 25 feet of the ordinary high water mark of creeks, in a wetland area, or on parcels where the predominant slope or individual slope is in excess of forty percent except enhancement activities. E. Any person who performs routine vegetation management on undeveloped property in the City must obtain a Routine Vegetation Management permit prior to performing such work. F. Any person who uses mechanical equipment for routine vegetation management, land clearing, tree cutting, landscaping, or gardening on developed, partially developed or undeveloped property mus: obtain a routine vegetation management permit prior to performing such work. G. No provision of this ordinance shall be construed to eliminate the requirement of permits for the purpose of developing the property with substantial permanent improvements such as roads, driveways, utilities, or buildings. 4-3606: REGULATIONS FOR THE LAND CLEARING AND TREE CUTTING AND THE DEVELOPMENT OF PROPERTY A. When a development permit is submitted to the City of Renton it shall be accompanied by a land clearing and tree cutting plan, This plan shall be reviewed as part of the environmental review process pursuant to the State Environmental Policy Act and Title IV, Chapter 7, Section 2800 of the City Code. B. All land clearing and tree cutting activities shall conform to the performance standards set forth in Section 4-3613 unless otherwise recommended in an approved soil engineering, engineering geology, hydrology or forest management plan and where the alternate procedures will be equal to or superior in achieving the policies of this Chapter. C. All land clearing and tree cutting activities shall be conditioned by the City to ensure that the following performance standards are met. 1. The land clearing and tree cutting will not create or contribute to landslides. accelerated soil creep, settlement and subsidence or hazards associated with strong ground motion and soil liquefaction. --r 2. The land clearing and tree cutting will not create or significantly contribute to flooding. erosion, or increased turbidity, siltation or other form of pollution in a watercourse: 3. Land clearing and tree cutting will be undertaken in such a manner as to preserve and enhance the City's aesthetic character and maintain visual screening and buffering. A-18 ORDINANCE NO. 4219 4. Land clearing and tree cutting shall be conducted so as to expose the smallest practical area of soil to erosion for the least possible time, consistent with an approved build-out schedule. 5. Land clearing and tree cutting shall be conducted so as to preserve habitat consistent with reasonable use of the property. 4-3607: EXEMPTIONS The following shall be exempt from the provisions of this chapter: A. Removal of trees and/or ground cover by the Public Works Department, Parks Department, Fire Department and/or public or private utility in emergency situations involving immediate danger to life or property, substantial fire hazards, or interruption of services provided by a utility; B. Removal of dead or terminally diseased or damaged ground cover or trees which have been certified as such by a forester, landscape architect or the City prior to their removal. C. Maintenance activities including routine vegetation management and essential tree removal for public and private utilities, road rights of way and easements, and parks. D. Installation of distribution lines by public and private utilities provided that such activities are categorically exempt from the provisions of the State Environmental Policy Act and Title IV, Section 2800 of City Code. a• 4-3608: ROUTINE VEGETATION MANAGEMENT PERMIT REVIEW PROCESS Permits for routine vegetation management shall be processed in accordance with the purposes and criteria of this section as follows : A. An application for a Routine Vegetation Management Permit shall be submitted to the Community Development Department together with any necessary fees. B. The permit shall be reviewed administratively within a reasonable period of time. C. Any individual or party of record who is adversely affected by such a decision may appeal the decision -to the City's Hearing Examiner pursuant to the procedures established in Title IV, Chapter 30. A-19 ORDINANCE NO. 4219 4-3609: APPLICATION FOR ROUTINE VEGETATION MANAGEMENT PERMIT A Routine Vegetation Management Permit Application shall set forth the following information: A. Name, address and telephone number of the applicant; name and telephone number of the contact person, if any; B. A time schedule for all mechanical equipment activities or routine vegetation management activities. C. A plan for the specific work to be performed. D. For routine vegetation management on undeveloped properties, the application shall include: 1. Standards and criteria to be used for routine tree trimming and tree topping; 2. Standards and criteria to be used for ground cover management; and 3. Standards and criteria to be used in determining the location for use of chemicals including insecticides and herbicides. E. For use of mechanical equipment the application shall include: 1. The type of equipment to be used. 2. A description of the specific work to be accomplished using the equipment. 3. The measures proposed to protect the site and adjacent properties from the potential adverse impacts of the proposed work and equipment operation. 4-3610: REGULATIONS FOR ROUTINE VEGETATION MANAGEMENT A. Any routine vegetation management on undeveloped property requires a permit pursuant to this Chapter. Permitted activities may include the use of mechanized equipment except as provided in Sections C and D below. B. The use of mechanical equipment for routine vegetation management, land clearing. ' tree cutting, landscaping, or gardening on developed, partially developed or undeveloped property requires a permit pursuant to this Chapter. C. For all properties, no land clearing, tree cutting, or ground cover management activities except enhancement activities are permitted in areas with slopes over 40 percent; slopes over 25 % with class II or class III landslide hazards, and slopes over 25% with class II or class III erosion hazards, as identified by the King County Soils Survey, King County Sensitive Areas Map Folio or the City of Renton Environmentally Sensitive Areas Maps. - D. For all properties, no land clearing, tree cutting or ground cover management activities except enhancement activities are permitted in wetlands including a minimum buffer A-20 ORDINANCE NO. 4 21 9 • area of 25 feet, riparian corridors including a minimum buffer area of 25 feet from the high water mark of the creek or stream, and in the 200 foot state shoreline area. 4-3611: ROUTINE VEGETATION MANAGEMENT PERMIT CONDITIONS The Routine Vegetation Management permit may be denied or conditioned by the City to restrict the timing and extent of activities in order to further the intent of this Chapter including: A. Preserve and enhance the City's aesthetic character and maintain visual screening and buffering. B. Preserve habitat to the greatest extent feasible. C. Prevent landslides, accelerated soil creep, settlement and subsidence hazards. D. Minimize the potential for flooding, erosion, or increased turbidity, siltation or other form of pollution in a watercourse. • 4-3612: TIME LIMITS FOR PERMITS Any permit for Routine Vegetation Management shall be valid for one (1) year from the date of issuance. An extension may be granted by the Community Development Department for a period of one (1) year upon application by the property owner or manager. Application for such an extension must be made at least 30 days in advance of the expiration of the original permit and shall include a statement of justification for the extension. 4-3613 : PERFORMANCE .STANDARDS FOR LAND DEVELOPMENT PERMITS A. There shall be no clear cutting of trees on a site for the sake of preparing that site for future development. Trees may be removed pursuant to a development permit which has been approved by the City. - B. Trees shall be retained to the maximum extent feasible on the property where they are growing. 1. Where it is not practicable to retain all trees on site due to a proposed development, a plot plan shall be submitted identifying those trees which are proposed for removal. The City may require a modification of the land clearing A-21 ORDINANCE NO. 4219 and tree cutting plan or the associated land development plan to ensure the retention of the maximum number of trees. 2. The plot plan shall identify the location of all areas proposed to be cleared including building sites, right-of-ways, utility lines, and easements. Clearing should not occur outside of these areas or more than 15 feet from the foundation line of proposed buildings. 3. No land clearing, ground cover management or tree cutting activities are permitted in a Native Growth Protection Easement except enhancement activities or the installation of essential roads and utilities where no other feasible alternative exists pursuant to an approved development plan. C. The City may restrict the timing of the land clearing and tree cutting activities to specific dates and/or seasons when such restrictions are necessary for the public health, safety and welfare, or for the protection of the environment, or to further the purposes of this ordinance. D. Native Growth Protection Easements may be established through the subdivision process in environmentally sensitive areas including but not limited to the following areas: 1. A buffer area from the annual high water mark of creeks, streams, lakes and other shoreline areas or from the top of the bank of same, whichever provides good resource protection. 2. Areas in which the average slope is greater than 40 percent. 3. Wetlands. 4. Any other area which is determined through the environmental review process to include significant vegetation or other valuable resources and which should be protected. E. No ground cover or trees which are within a minimum of 25 feet of the annual high water mark of creeks, streams, lakes, and other shoreline areas or within 15 feet of the top of the bank •of same should be removed, nor should any mechanical equipment operate in such areas except for the development of public parks and trail systems, and enhancement activities. F. The City may require and/or allow the applicant to relocate or replace trees, provide interim erosion control, hydroseed exposed soils, or other similar conditions which would implement the intent of this Chapter. G. No land clearing, ground cover management or tree cutting activities except enhancement activities shall be conducted in a wetland, except for the installation of roads and utilities where no feasible alternative exists pursuant to an approved development plan. H. When tree cutting or land clearing will occur pursuant to a building permit, protection measures should apply for all trees which are to be retained in areas immediately subject to construction. These requirements may be waived individually or severally by the City if the developer demonstrates them to be inapplicable to the specific on- I, A-22 ORDINANCE NO. 4219 site conditions or if the intent of the regulations will be implemented by another means with the same result. Where the dripline of a tree overlaps a construction line, this shall be indicated on the survey and the following tree protection measures should be employed: 1. The applicant may not fill, excavate, stack or store any equipment, or compact the earth in any way within the area defined by the dripline of any tree to be retained. 2. The applicant shall erect and maintain rope barriers or place bales of hay on the drip line to protect roots. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. 3. If the grade level adjoining to a tree to be retained is to be raised, the applicant shall construct a dry rock wall or rock well around the tree. The diameter of this wall or well must be equal to the tree's drip line. 4. The applicant may not install impervious surface material within the area defined by the dripline of any tree to be retained. 5. The grade level around any tree to be retained may not be lowered within the greater of the following areas: (1) the area defined by the dripline of the tree, or (2) an area around the tree equal to one foot in diameter for each one-inch of tree caliper. 6. The applicant shall prune branches and roots, fertilize, and water as appropriate for any trees and ground cover which are to be retained. 4-3614: VARIANCE PROCEDURES • The Hearing Examiner shall have the authority to grant variances from the provisions of this Ordinance pursuant to Title IV Section 722, and Title IV Chapter 30 . 4-3615: VIOLATIONS AND PENALTIES A. A violation of any of the provisions of this chapter shall constitute a misdemeanor. It shall be a separate offense for each and every day or portion thereof during which any violation of any of the provisions of this chapter is committed. B. Any person who shall violate any provisions of this ordinance shall be subject, upon conviction in court, to a fine not to exceed 31,000 per day and/or 3500 per tree. In a prosecution under this ordinance, each tree removed, damaged or- destroyed will constitute a separate offense. 4-3616: PUBLIC AND PRIVATE REDRESS A. Any person who violates any provision of this Chapter or of a permit issued pursuant thereto shall be liable for all damages to public or private property arising from such A-23 ORDINANCE NO. 4219 violation, including the cost of restoring the affected area to its condition prior to such violation. • B. Restoration shall include the replacement of all improperly removed ground cover with species similar to those which were removed or other approved species such that the biological and habitat values will be replaced; and C. For each tree which was improperly cut and/or removed, replacement planting of a tree of equal size, quality and specie or up to three (3) trees of the same species in the immediate vicinity of the tree(s) which was removed. The replacement trees will be of sufficient caliper to adequately replace the lost trees(s) or a minimum of 3 inches in caliper. D. Restoration shall include installation and maintenance of interim and emergency erosion control measures until such time as the restored ground cover and trees reach sufficient maturation to function in compliance with the performance standards identified in Section 4-3606. E. For any parcel on which trees and/or ground cover are improperly removed and subject to penalties under this Chapter. the City shall stop work on any existing permits and halt the issuance of any or all future permits or approvals until the property is fully restored in compliance with this Chapter and all penalties are paid. SECTION II. This ordinance shall be effective upon its passage, approval, and thirty days after publication. PASSED BY THE CITY COUNCIL this 5th day of June 1989 . Maxine E. Motor, City Clerk APPROVED BY THE MAYOR this 5th day of June , 1989 . Earl "Clymer,; Mayor` Approve as to form: � ���a-tea.._ Lawrence J. Wa en, City Attorney Date of Publication: Published in summary June 9, 1989 ORD. 90:5-11-89 :as . A-24 APPENDIX B LIFE HISTORY AND EFFECTS OF HUMAN DISTURBANCE ON GREAT BLUE HERON ROOKERIES TABLE OF CONTENTS Page Introduction B-1 Proposed Project B-1 Description of Study Area B-1 Black River Great Blue Heron Nesting Rookery B-2 Study Approach B-4 Life History of the Great Blue Heron B-5 Ecological Overview B-5 Nesting Requirements B-5 Effects of Human Disturbance B-6 Peasley Canyon Rookery, Auburn, WA B-7 Spencer Property, N.E. 95th Street, Redmond, WA B-8 Yarrow Bay, Kirkland, WA B-8 Lake Sammamish State Park, Issaquah, WA B-8 Ross Island, Portland, OR B-9 Pigeon Point, West Seattle, WA B-9 West Delta Park, Portland, OR B-9 Garabaldi, OR B-10 Summary of Findings - Effects of Human Disturbance B-10 Management Guidelines B-11 Blackriver Corporate Park - Tract A Site B-12 Blackriver Corporate Park - Tract B (Phase VII) Site B-13 References B-15 Literature Cited B-15 Personal Communications B-16 - i - LIST OF FIGURES Following Figure Page 1 Location Map Black River Great Blue Heron Rookery B-1 2 Site Plan, Tract B (Phase VII) 7-Story Office, Blackriver Corporate Park, Renton, WA B-1 3 Landscape Plan, Tract B (Phase VII) 7-Story Office, Blackriver Corporate Park B-1 4 Recommended Setbacks and Heron Flight Zone; Tracts A and B, Blackriver Corporate Park B-12 ii LIST OF TABLES Table Page B-1 Characteristics of Select Great Blue Heron Rookeries and Adjacent Human Activities in Washington and Oregon B-3 - 111 - LIFE HISTORY AND EFFECTS OF HUMAN DISTURBANCE ON GREAT BLUE HERON ROOKERIES Introduction The First City Developments Corporation(FCDC)proposes to construct three office buildings ranging from three to seven stories on 15.7 acres known as 'Tract B" (Phase VII), and three office buildings ranging from one to four stories on 12.71 acres of'Tract A"which lies adjacent to the Springbrook Creek, Renton, Washington (Figure 1). In November, 1988, the City of Renton made a Determination of Significance on FCDC's application for Site Plan Review and Shorelines Substantial Development Permit for Tract B (Phase VII), stating that a SEPA EIS was necessary to address, among other issues, the effect of the project on "flora and fauna, particularly in regard to the heron and other waterfowl in the area and sources of food for these species. . ., light, glare, and noise as it potentially affects wildlife species (including heron). . ." This technical report presents an overview of the proposed project and a description of the study area, defines the study approach, and provides a brief account of the life requirements of the great blue heron. Lastly, this report includes an analysis of effects of human disturbance on herons and guidelines designed to minimize future adverse impacts. Proposed Project The proposed project will include the construction of 286,200 square feet of office space on 15.7 acres known as Tract B, and 183,600 square feet on 12.7 acres on the adjacent Tract A. Construction of the three buildings on each tract is to be phased over a four year period beginning in 1990. Included with building construction at both sites will be parking and site landscaping. Figures 2 and 3 show the proposed site plans for Tracts A and B. Refer to Chapter 2 of the EIS for a more detailed description of the proposed action and project alternatives. Description of Study Area The project study area is located within the City of Renton corporate limits, approximately one half mile north of Interstate 405 (see Figure 1). Land east of the site is industrial and office park. Land south and west of the site supports Metro's Renton wastewater treatment facilities, office parks, and light industry. The area north of the site includes the Springbrook Creek and ponds, and riparian forest. Tract A is open and treeless, having been previously filled from material dredged from the Springbrook ponds. Upland grasses and Scot's broom dominate the site. As a condition to a grade and fill permit approved by the City for the site, FCDC planted several, B-1 G"P y EMPIRE WAY q4' v r.�, . .. RENTON SW 7TH 5 BLACKRIVER` wAY CORPORATE .tif F aRA°�c p 405 TO SEA-TAC AIRPORT " 4 MILES 0 LONGACRES SOUTHCENTER co D cn 2 .—i m ti D VALLEY m mr— GENERAL HOSPITAL S 180TH / Figure 1. Location Map Black River Great Blue Heron Rookery. FN LEGAL DESCRIPTION u 1 ,,,FM ..•• •1•.-•..• MN. HEH , I 1..MI II.1 •1.,. ® \........ I� .%.o•KN:G♦7r�:Marked'ONO . _ .1 � , ' * 1.`r•r•.w..•....a.In,..•... Ft M•nrl �` . '� / ��;P •' •. - ti•.--•�• a i VICINITY MAP D•Irlll..Pond / • _ _- , \ _ �� roiu• ♦�r II.M. _ r •- 7 ourc e 1. I I • 1•/nM N / 1 • 11 •7-11shasl' • • ,,° isb"9. .. Pi :$,--' _ eh NAM :r_,,,,,,,,......4.,..... : . :. ___ .......,._. „.1.,:... .....- , 1.......,___,-, Pink t I , . ......._ • ,-,.,.. . . ... rt.% . r- ____.....-: • • ..- ,w` CI II a• �-AV...v.S.wctr W^6 1 1 I 1 , a I I.i _ \ / :,I • •,e. \1 ----t; !/l / iu I I d I /439.1714 / [ [ wan 4- . -' I Ii ' 1 .11 :rr-w'.r�caw° `c'— /I. 7 L �i w. .....•�.+- �� •r HERON EXHIBIT /040 1 11 c9: ‘1 \ .e.i. it ly v..,..z.....:::„........-.......,..; ....._ / i . i: .. 1 ' 'li •' \ %...., ...,_ ___,,,.....e..s:/)....... I, .......... - • • tir•P• . 1'.•IC ••.--.AL."C. . \\ '\" • S.-m.6.4o .11 it/ .. inc..',"../.....:&- in ...........1..... .., _mot = • / ., \ 1 '�.II P .... , A i \ \ 1` • I 1..... i..•.r 2.r•.•tree■ • ��� VV 1 / I! "tip. / T` 11, .1;� I n.�� w..rrw {;p+ 1. I :� . ....----:: 0.A..) ....--'--..- i4".a; ;,, ._... __,,,, _ 11 X1 I !rI' _ •.....mow- t► * �1 , 4.,i1 _ ..a -•. ! \t \I J --_-•�C�y _.. _-.. - Y1k( L� = I, /'....I.......-- s. _-4_._-. .4- - ...hv:.a•w,.ti 94 4✓1. a+w .+.Mo.,.70Y 7�� �- � % i ; 04...•er.••Mu.•••..K, 4' . : - .././.:::,....,........ . , —°•*..„„,. Ao:;.:w.„ `.. nn .u � 1' W',jot , IL '' .•— `1 rur. Site Area 2683,912 S.F. • " v, , `" � Building Aria 22851000 S.F. +... •.1•.".., ter,. ,/-�•`' Gross Coverage 241.7X I ;-..•::r.4% '"'•"' ,�..•• Figure 2. Sits Coverage 26.2% .. • `' i'"`""""•' Site Plan,Tract B (Phase VII) Parking =Ko•••.-.o. �. ♦' rk 7-Story Office,Blackriver Corporate Park, Standard 21,05:our � a• Compact sass Sur 723Z ! ,,. Renton,WA Hrde.V 217 Star ., .., .• 11,425 Stalls . Source: LPN,Inc.1988 21/200 S.F. ‘ 1' /1V\IN .,c„,i , / 1 ` . _ '1. , Drainage Ditch ,S# L - I.1 _ •Al .r, a `6 ® P-1 Channel ` ela Detention Pond c� - IN „am- 44,�' '--` ''fir' - , a'b'�_act • ,,,,, ....,,, •—•...)u.-.. L.L.~y •� `Y.. MLT.r(/_J4.Lr.. -- u TJ.� .LL► T7 e3 , (CO /.yi`/�A.. --4 ro .-ice. L'. ' ~J.+ _ 7 .1•w�iY.i� 1 0 r:i rs1 •%•` - oa. ewes *sag a �•—4 ®i5 �:. T).rr FutuiliL :kTi,� lll.La �11,�aj 1�[„ 11 1 / ` /. PlazaNFlag ,a .._..�.... I • . 6 . { M \,... 6 , L:j/d 1 / R.r ` Poi / • `♦d*p+I 14w ` E2_, 5,) E7dsting �/ /I;/ �j 1 a�e.Ms p!V � V � a\ • ' ... Phase III Ily / / /........... 1-`2, Rill '"-'''''' %S.•'.‘.:1 ,• * _itw 1 o k 6�`s B . - 4 C I 4. r +.../ �� L'y. �+Cb S r;',.'"/.r I a.Z.. *: oW , 3ai Nft ` 74..1...\ `" dam ea-)cil t. tij ��, •/1 /, � ail ' `r1�' �`. ‘ . �.. n•-• '' eg \‘12�� c. ��1' !0 rip• ��� �.-a3" "�/% k- �'� VS; yr'' ,( r ,! a� 1 FuWre Parking (.7 r 4 rStrveture ; r• `+ ;�; 811 am ,,. .„, . ,..., \ \ .‘ .14 A_...., - \J'... + L1. r % ^a•.••.%L.•.a ; ► �? • . .oe �C, % 1Di law I q.. 07./ . .4%.** ,.-.k...„, -- -._ - - -___., /,(Nalf: :),,, ,,, , ,.. ____•,..,. .. ...., as -, ini P-1 Channel \" \� le R ��.� Figure 3. .- Landscape Plan,Tract B (Phase VII) NaTL.11.aLT TWT.•NwLL,.✓.•...! .........Y...>...LT...L..«... • • , 7 Story Office,Blackriver Corporate Park, .•YLOYa.WIL.•...r'stow•.4► '• fop at.,�..••.IL Y..� .' _.Y . V Renton,WA . ,.Y.y..L...M.W......Law.. ,`.. .,.,... ....Y......1. I,....LL..Y... Source: LPN,Inc.1988 LY..LL M..N ....ILy.f. \ ar\ ' •6,rsts. •'. L L.....1..•/..T.V.{a.•. rows of poplar trees within a 200-foot buffer zone bordering the Springbrook ponds. These trees are approximately 10 to 12 feet in height. Tract B is vegetated with grasses, alder, Scot's broom and a remnant riparian forest of cottonwood trees, a number of them greater than 48 inches in diameter. The northeast portion of the site is a remnant of the historic Black River channel (Figure 2). Mack River Great Blue Heron Nesting Rookery The great blue heron rookery, known locally as the Black River heron rookery, is located in cottonwood trees on an island formed when the P-1 Ponds were constructed from March to August, 1984. The rookery is located approximately 350 feet from the northern boundary of Tract B and 500 feet from the northeastern boundary Tract A. Based on field observations by Rex Van Wormer, wildlife biologist, during the 1989 nesting season, 25 nest structures were located in three 48 to 54-inch diameter, 140 to 150- foot tall black cottonwood trees. During field surveys conducted by Van Wormer on June 10, 1989, 17 of the nests were observed to be occupied and eight nests unoccupied (Van Wormer 1989). During field surveys conducted in April, 1989, Van Wormer observed 23 occupied nests, six fewer occupied nests than were observed in June. The age of the nesting rookery is not well known, however, there is evidence that at least three nest structures were present at the time of construction of the P-1 Ponds in 1984 (Van Wormer 1988). Table B-1 presents available data on the history of the nesting rookery. Little nesting information is available prior to 1986. The P-1 Ponds are used for feeding by adult and fledged young herons. Newly fledged young herons appear to use the shallow ponds for feeding during July and August, eventually moving to more productive feeding areas in the Green River Valley. Van Wormer (1988) found that a majority of the adult herons returning to and leaving the rookery on feeding forays flew to the south and east of the rookery. During July and August, 1989, fledged herons were observed by JSA staff to make only limited use of the ponds for feeding and/or loafing. This limited use may have been due to the very low water conditions in the pond and poor water clarity. Water in the ponds was rust-colored with limited visibility. Water was shallow and limited to narrow streams of inflow from Springbrook Creek and the drainage ditch located on the north boundary of Tract B. In past years the ponds have been stocked with fish, however, water levels in recent years have appeared lower than previously occurred (Erickson pers. comm.). Pond elevations are controlled at the King County pumping station. Reducing the discharge of water through the pump station could increase the ponded surface area, thereby improving foraging habitat for the heron. Since 1984, the Black River rookery has been subjected to a variety of disturbances and intrusions. Historical accounts of the rookery prior to 1986 are sketchy, however, Allmendinger (letter of 3/2/87) reported seeing nesting herons prior to the construction of the P-1 Ponds and forebay (report and decision, Office of the Hearing Examiner, City of B-2 Table B-L Characteristics of Select Great Blue Heron Rookeries and Adjacent Human Activities in Washington and Oregon Adjacent Distance Rookery Approximate Human Rookery to Rookery Location #of Nests Activity Nest Trees Activity Status Comments Reference Black River 1987-8 to 10 Road Cottonwoods 200-1000' Viable P-1 Pond Van Wormer, Renton,WA 1988- 18 construction, constructed 1984 1988;1989 1989-17 logging logging within 200 feet of rookery during March,1987. Lk.Sammamish 1985- 14 Public boat Cottonwoods —330' Viable High level of Murphy,1988 State Park, 1986-21 launch,boating- human activity in Issaquah,WA 1987-29 area during 1988-unknown summer. 1989-unknown Peasley Canyon 1989-27 Park&Ride, Red alder 600' Viable Rookery size has Van Wormer, Auburn,WA roadways increased from 10 1988;Bock pers. nests in 1983 to comm. 27 in 1989. Ross Island 1989-50 to 50 Gravel Extraction Cottonwoods 200-300' Viable 300'buffer Pesek,pers. • ed Portland,OR established,birds Comm. W now nesting within 200 feet of activity. Pigeon Point 1986-16 Multifamily Cottonwoods 200' Viable Occupied in 1986; Penland pers. West Seattle,WA 1987-0 no nesting in comm.;Murphy, 1988-0 1987;observed to 1988;City of 1989-unknown be occupied in Seattle 1986. 1989. Spencer Property 1988-6 Single family Douglas fir 75-100' Viable Nests in 80-100' Jones&Stokes Redmond,WA 1989-unknown residential Douglas fir trees; 1988 adjacent property logged to within 50'of trees. Yarrow Bay 1987-6 Condominium, Cottonwoods —150' Viable 1985 estimated Murphy,1988 - Kirkland,WA 1988-unknown tennis club year of 1989-10 established. West Delta Park 1989-20 to 25 Railroad Cottonwoods 50-100' Viable Within Portland Van Wormer, Portland,OR switching yard, city limits. 1988;Pesek,pers. log handling yard, comm. golf course. - Renton, June 9, 1987). According to Van Wormer (1988), excavation of the P-1 Ponds (including creation of the island supporting the rookery) was carried out from April to September, 1984. Based on review of aerial photographs of the P-1 Ponds and heron rookery, draglines and other heavy construction equipment were likely used within 50 to 100 feet of the rookery. During 1987, a large portion of the riparian forest between the Burlington Northern Railroad tracks and the P-1 Pond was cleared and partially filled. Logging activity took place from February to mid-March,within 200 feet of the rookery and during a time of nest selection, nest building and pairing. According to Van Wormer (1988), at that time the rookery contained eight nest structures. Since 1987, various degrees of disturbance to the rookery have occurred as a result of construction at the Metro wastewater treatment site (1,500 feet.from the rookery), on Oakesdale Avenue. (1,100 feet from the rookery), continued routine activities on the Burlington Northern railroad tracks (1,000 feet from the rookery), at the Black River quarry (2,400 feet from the rookery), and on property adjacent to Naches Avenue S.W. (1,000 feet from the rookery). Study Approach Information for this study was derived from three primary sources, 1) review of existing literature relative to the Black River rookery and the life history and effects of human activity on nesting great blue herons, 2) communications with biologists and others knowledgeable of the rookery and great blue herons, and 3) field visits to the site. A substantial amount of information is available on the life history and ecology of the great blue heron. Much of the information is found in life history accounts (Bent 1926; Lowe 1954; Palmer 1962), in published journal articles (Jenni 1969; Pratt 1970; Teal 1965; Murphy 1988; Mark 1975; Cottrille 1958; Henny 1971; Werschkul et al. 1976), or in special reports, correspondence and Masters theses or Doctoral dissertations (Parker 1980; Van Wormer 1987, 1988; Ives 1972). During the course of preparing this technical report, biologists and others knowledgeable of great blue herons and the rookery were contacted (Penland, Murphy,Van Wormer, Owens, Milner, McAllister, Pesek pers. comm.). During January, 1990, noise monitoring was conducted at the Black River and Peasley Canyon rookeries. A continuous noise monitor was placed at each rookery and background noise recorded for a 24-hour period. Noise data was down-loaded to a computer and printed on a spreadsheet format. Noise data(peak instantaneous and average noise levels) were then compared with noise literature and sound level data. B-4 Life History of the Great Blue Heron Ecological Overview The great blue heron is the largest and most widely distributed of American herons. It is found throughout much of the United States and Canada. The great blue heron is migratory throughout much of its northern range; in western Washington at least a portion of the population does not migrate. Great blue herons live within or near wetlands,along rivers and estuaries and coastal areas. They feed on fresh and marine fishes (approximately 72 percent of their diet),insects (8 percent of diet), crustaceans (9 percent of diet), mice and shrews (5 percent of diet), amphibians and reptiles (4 percent of diet) and vegetative matter (2 percent of diet) (Cottam and Uhler 1945). Herons breed after their second winter (Henny 1972). The breeding population (and some subadults) gather at nesting rookeries in February and early March. During that time, adults establish territories, begin nest construction or reconstruction of old nests, breeding, egg laying and incubation. Egg hatching extends from March to April. Clutch size varies from 3.3 to 4.2 eggs per nest. Young herons become fledged in approximately eight to nine weeks from hatching (Henny and Bethers 1971). An average of 2.6 young were observed to fledge per successful nest in western Oregon (Henny 1971). Fledglings return to the nesting rookery from feeding forays for up to four weeks following first flight (Ives 1972; Murphy pers. comm.). In western Washington, a majority of young have flight capability by mid-June but most young stay in the vicinity of the rookery and nests for feeding which continues after first flight. During a field trip to the Black River rookery on June 21, 1989, many of the young had not yet achieved flight capability. The fledging time for late nesters may extend into July or August (Murphy pers. comm.; Ives 1972). Nesting Requirements Great blue herons are colonial nesters and generally nest in tall trees but have been found nesting in small trees or shrubs wherever trees are not available (Washington Department of Wildlife 1988). Nesting habitat requirements generally include the following components: • Grove of trees greater than 1 acre (0.4 hectares) in size; • Trees with sturdy branches for nest placement and an open canopy for ease of egress and ingress; • Tree height may be variable and dependent on the proximity of disturbance factors to the nest sites; B-5 • Nesting sites are generally close to water, not more than 820 feet (250 meters); and • Foraging requirements are for shallow, clear water with a firm substrate and adequate populations of huntable small fish (Short and Cooper 1985). While the above represent optimal nesting habitat components, deviations have been recorded. Several reports have noted a preference for tall or the tallest trees in a grove for nest location (Jenni 1969; Ives 1972). All of the great blue heron nests in rookeries visited for this study were located in the tallest trees or on a slope where the birds were situated above the surrounding terrain and a majority of the trees. Heron nesting has been recorded in highly urbanized settings as well as undisturbed sites. Because of the need for water in close proximity to a rookery, herons are often found nesting near areas of high human use such as along lakes and rivers. Herons will either return to the same rookery each year, or may move to other established rookeries or establish a new site when conditions are suitable (Henny 1972). Consequently, the size and number of heron rookeries in an area may oftentimes change from one year to the next. The reasons for change in rookery location and size include human disturbance; natural events such as flooding, fire or wind; depletion of nesting materials; changes in food supply; or effects of excrement on the nest trees or understory (Simpson et al., 1987; Werschkul et al. 1976). Parker (1980) surmised that small nesting colonies have become increasingly common in recent years, perhaps in response to the continued reduction of large expanses of undisturbed riparian habitat that could potentially support large rookeries. Effects of Human Disturbance During the past 15 years, numerous scientific studies have been undertaken to determine the effects of human activities on great blue heron nesting rookeries. Increasing development and more intensive human use of the land has resulted in a greater need to understand the ecological requirements and tolerances of nesting herons. Recently the Washington Department of Wildlife (WDW) developed guidelines for the management of great blue herons (WDW 1988). Their guidelines indicate that responses of great blue herons to human activities near the rookeries are not predictable. Herons have been known to abandon rookeries because of housing and industrial development, highway construction, logging, active roads, and repeated human intrusions into colonies (Leonard 1985;Parker 1980; Kelsall and Simpson 1979;Werschkul et al. 1976; Bjorklund 1975). Mark (1976), conducted an inventory of great blue heron rookeries in British Columbia. He found records of heron rookeries dating to before 1920. Many of the earlier recorded rookeries had been abandoned or destroyed by logging or development. Mark (1976) concluded that when a heronry is abandoned, the birds are generally able to relocate easily, provided that large trees remain in the area. B-6 • Other studies have shown herons to tolerate noise such as highway and railway traffic as well as human movement. Webb and Forbes (1982), reported that four great blue heron nests were established in a single row of planted trees located between a hotel parking lot and a heavily ,used roadway system servicing the airport in Vancouver, B.C. A second colony, located next to high-use areas in Stanley Park, Vancouver, B.C., has existed since 1921. Both rookeries are located in coniferous trees. In several letter reports, Van Wormer (1987, 1988) noted great blue herons nesting adjacent to a railroad siding and industrial park near West Delta Park in Portland, Oregon. Taylor and Reshkin (1981) conducted a study of the effects of recreational activities on a great blue heron rookery located along the Little Calumet River in Indiana. The biologists concluded that, based on intrusion impact tests (noise tests, helicopter intrusion, group trips to within 280 feet of the rookery), recreational activities during the nesting season could be allowed within 575 feet of the nesting rookery. Parker (1980), conducted a study of the effects of human disturbance on great blue herons in Montana. He determined that while nesting rookeries have been found to be long-lived in other portions of the country, in Montana herons appeared to move frequently in response to development and disturbance. Parker suggested that the decrease in rookery size and age and the increase in the number of colonies may be due to the fragmentation __ of riparian habitat and the loss of extensive woodlands able to sustain large and long-lived colonies. In Washington and Oregon, a number of heron rookeries are viable in urban or urbanizing settings (Table B-1). The following section provides a brief overview of several of those rookeries. Peasley Canyon Rookery, Auburn.WA In Auburn, WA the Peasley Canyon rookery (approximately 27 nests), is located within 300 to 600 feet of three busy roadways (Highway 18, Peasley Canyon Road and the West Valley Road), a Washington Department of Transportation (WDOT) Park and Ride lot, and a single family dwelling. The rookery is located on the side of an east-facing slope of alder, cottonwood, and Douglas fir trees. A pond and wetland lies between the rookery and the Peasley Canyon Road and Park and Ride facility. Land west of the site is undeveloped and is vegetated with bigleaf maple, alder, and Douglas fir. According to Robert Caldwell (pers. comm.), the WDOT Park and Ride lot was constructed in 1983 at its present location. Although the location of the lot as originally proposed, was shifted from the south side of the Peasley Canyon Road to its present location to avoid possible impacts on the rookery, a"defacto" parking lot had been created and extensively used by commuters at the previous south side location (Caldwell pers. comm.). To avoid possible impacts of construction on the nesting birds, and as a condition of project approval, no construction was allowed from February through June, 1983. Lot construction extended from July through September, 1983 with no observed adverse impact on the herons. B-7 Spencer Property. N.E. 95th Street. Redmond,WA Approximately six great blue heron nests are located in 80 to 100-foot tall Douglas fir trees on a 1-acre lot located near Bear Creek and Avondale Road,Redmond,WA(Table B-1). Property immediately east and west of the site has been cleared of trees to within 50 feet of the nest trees. According to Spencer (pers. comm.), the herons have used the grove of trees for nesting. since 1983 or 1984. Based on known literature, the Spencer heron rookery is unusual because of the close proximity of the nest trees to occupied structures (100 feet). The level of human activity on the site is relatively low (lawn mowing, wood cutting, barbecues, barking dogs, etc.). The tolerance of the herons to human activity at this site is probably due to the height of the nests (80 feet) and the visual buffering provided by the foliage of the fir trees. Webb and Forbes (1982) suggested that the dense foliage of fir trees at the two rookeries in Vancouver, B. C. reduced nest visibility and buffered the effects of human activity. Yarrow Bay, Kirkland,WA The Yarrow Bay heron rookery is located near the Yarrow Bay condominiums, apartments and tennis club. The nest trees are located in cottonwoods approximately 200 feet from a swimming pool, cabana, tennis courts, and four-story apartment buildings (one story of which is parking). A narrow asphalt walk lies between the apartments and the rookery. While the area between the rookery and the development is densely vegetated with willows, alder, scattered cottonwoods and salmonberry, few trees are tall enough to provide a completely blocked view of the nests from the pool, walkway or buildings. Land to the west, north, and south of the rookery consists of forested and shrub wetland varying in distance from 1,000 to 1,500 feet to the nearest development. Human use and movement near the apartments occurs frequently, particularly during the summer months. Of the heron rookeries evaluated for this study, the Yarrow Bay rookery lies closest to a continuous moderate level of human activity. Nests on the Spencer property in Redmond are closer to occupied dwellings, however, human use of the site is light and dense vegetation provides a substantial visual buffer. During the fall of 1989, construction of several office towers was begun at Yarrow Bay approximately 1,200 feet south of the rookery. These office complexes will be approximately five stories in height. Additional development is also occurring approximately 600 feet west of the rookery. Lake Sammamish State Park, Issaquah, WA A great blue heron colony supporting approximately 29 nests, is located in black cottonwoods at Jensen's Cove in Lake Sammamish State Park. A public boat launch lies within 150 feet of the rookery and noise and recreational activities on the lake are frequent from spring through fall (Murphy 1988). Even with the frequent disturbance, the number of great blue heron nests has increased from seven in 1984 to 29 in 1987. B-8 Ross Island, Portland, OR The rookery is located on Ross Island in the Willamette River. Gravel, extraction activities, which began in the late 1970s, are ongoing within 300 feet of the rookery. The gravel company signed an agreement with the Oregon Department of Fish and Wildlife (ODFW) to maintain a 300-foot vegetated buffer between the rookery and gravel extraction activities. There are no seasonal limitations on extraction activities (Pesek pers. comm.). Gravel is extracted by dragline and loaded aboard barges for transport to a crusher on the mainland or to other locations on the river. Activity is fairly constant and the noise levels are high. A log storage lagoon also lies at the edge of the buffer zone. The rookery consists of 50 to 60 active nests located at heights of 80 to 100 feet in 120-foot tall black cottonwood trees (4 feet in diameter). Since the buffer agreement was put into effect, the rookery has expanded in size so that a number of active nests now lie within 200 feet of gravel extraction activities (Pesek pers..comm.). Pigeon Point. West Seattle, WA The Pigeon Point heron rookery is located in red alders,big leaf maples and possibly Douglas fir trees on an east facing slope above the Duwamish Waterway in West Seattle. The rookery held 16 nests in 1986 but was reportedly deserted in 1987 and possibly during 1988 (Murphy 1988; Penland pers. comm.). During a field visit to the rookery site on June 24, 1989 by JSA staff, great blue heron young were observed perched in alder and Douglas fir trees, however, no nest structures could be seen from the point of observation,-approximately 1,000 feet down-slope from the nesting rookery. According to R. W. Thorpe and Associates (1985), the heron nests are located 600 to 900 feet from Alaska way and 150 feet from a Continental Van Lines loading facility on West Marginal Way. Land use adjacent to the rookery includes single family, commercial/industrial development and open space. West Delta Park, Portland, OR The West Delta Park rookery, located near Force Lake and West Delta Lake golf course, is approximately 10 to 15 years old. The nesting colony, consisting of 20 to 25 nests, is located in 80-foot high cottonwoods (2 to 3 feet in diameter), adjacent to an industrial area (railroad tracks, warehouses). The rookery is within 50 feet of the railroad alignment and 150 feet from the nearest buildings (Pesek pers. comm.). According to Pesek (pers. comm.), there is limited human activity on the railroad tracks and in the vicinity of the buildings. According to Van Wormer (1987), construction of the warehouse, golf course, and railroad switching spur (all within 150 feet of the rookery)were completed with the rookery in place (18 nests in 9 trees smaller in diameter and stature than those at Black River). There were no conditions for construction (seasonal construction or setback requirements) of the warehouses (Van Wormer 1987). B-9 Garibaldi, OR Approximately seven years ago, a great blue heron rookery consisting of 20 to 25 nests, was established on vacant lots of a single family home subdivision in Garibaldi, a small coastal community located in Tillamook County, OR. The rookery was apparently established by herons displaced by logging activities in the area (Pesek pers. comm.). The nests are located in 60- to 80-foot tall alder trees less than 200 feet from existing single family homes. According to Pesek (pers. comm.), alders are the only tall trees in the area. Summary of Findings - Effects of Human Disturbance A majority of the information available regarding the effect of human activities on great blue heron rookeries is associated with either short-term construction-related activities or in areas where rookeries have been established after construction. Only limited information exists regarding the effects of construction activities on existing rookeries. Likewise, very little information exists regarding setbacks needed to provide long-term protection to heron rookeries. According to the USFWS Habitat Suitability Index model for great blue heron(Short and Cooper 1985), optimal nesting habitat includes a disturbance-free zone of 820 feet (250 meters) over land and 500 feet (150 meters) over water. While these distances represent optimal nesting conditions, research has shown that deviations have been recorded. There are many examples, as previously described, where human development preceded heron rookery establishment. Spencer property, WA; Yarrow Bay, WA; Ross Island, OR; and the Delta River Inn rookery,Vancouver,B.C.(Webb and Forbes 1982); are the most notable examples. In all cases great blue herons established rookeries at locations of known (and obviously acceptable) human intrusion and disturbance. Great blue herons established nests at distances varying from 75 feet to 300 feet from ongoing human activity. Rookeries located closest to disturbance (Spencer property and Delta River Inn) were established in coniferous trees, which suggests that the dense foliage of conifers reduces the - . visibility and provides "seclusion" for the nesting birds. West Delta Park, OR and at Black River,Renton,WA are examples where rookeries were established prior to construction activities (pond excavation, construction of warehouses and golf course). In both cases construction was carried out during great blue heron nesting activity and the rookeries continued to be viable after construction was complete. At the Pigeon Point rookery in West Seattle, WA herons are nesting within 200 feet of a moving company loading facility in a commercial/industrial zone. It is not known whether development preceded the rookery. Research indicates that great blue herons nesting in cottonwoods and other deciduous trees establish greater distances between the human disturbance and the nests. The Yarrow Bay rookery (a cottonwood rookery) is located within 200 feet of ongoing human activity and four story apartment buildings. This represents the closest known rookery site to an B-10 area at which there are tall buildings (four story apartments)continually used by humans. The Ross Island rookery lies within 300 feet of ongoing gravel mining, and newly established nests may be even closer. The Peasley Canyon rookery also lies within 300 feet of busy (and noisy) highways. The rookery at West Delta Park in Portland,OR is located in cottonwoods and within a few feet of railroad tracks (intermittently used) and 300 feet of occupied industrial buildings. Management Guidelines The WDW/Nongame Program,has established management guidelines for great blue herons in Washington (WDW 1988). It is mentioned that responses of great blue herons to human activities are not predictable,and for that reason nesting areas should be kept free of human disturbance within an 800-foot to 1,300-foot radius of the nesting colony during the breeding season (February 1 through August 1), and that a smaller, permanent buffer of 750 feet should be closed to human access year-round. Additionally, stands of trees at least 50 feet high and at least 10 acres in area should be preserved. In a February 20, 1987 letter to the City of Renton, the USFWS recommended that a 660-foot or greater radius no-construction and no-human-activity buffer zone be established from the center of the rookery. They also recommended that the buffer zone be revegetated with native Puget Sound lowland plants, that all buildings and parking lots be constructed as multi-level structures, and that the buildings be sited to act as a visual/sound screen between the parking/service areas and the rookery. At the Pigeon Point rookery in West Seattle, Penland the WDW stated that WDW considers 600 feet as a minimum buffer width, but that a 500-foot setback would be acceptable so long as modifications to a proposed Multifamily Planned Residential Development were made (City of Seattle 1986). In a Montana study on the effects of human disturbance on great blue herons, Parker (1980) recommended that a minimum of 10 acres of old-age cottonwoods be maintained for heron nesting, and that in an established rookery, a permanent buffer of 80 feet in radius should be established and closed all year. Additionally, an 820-foot no-entry zone should be established during the breeding season. { Taylor and Reshkin (1981), recommended a 575-foot no-entry buffer zone around rookeries located on the Little Calumet River in Indiana. In studies of colonial nesters along the east coast, Buckley and Buckley (1976), recommended excluding all foot traffic within 1,000 feet of any active colonial nesting waterbird sites (including great blue herons). This recommendation did not take into consideration nest tree height or the buffering effects of tall or dense vegetation. Additionally, these recommendations were for National Park lands in relatively protected • settings, not urban or suburban lands subject to a large number of ownerships and existing and potential land uses. The literature indicates a wide variety of buffer zone recommendations, some based on field observations and studies, others based on "scientific intuition." The eight case B-11 studies previously described show that there are a significant number of examples of tolerance of great blue heron to human disturbance. Successful heron rookeries in the Pacific Northwest have been established or maintained in urban settings at distances varying from 75 to 300 feet from human activities. Nowhere in any of the literature is any distinction made as to setbacks based on such factors as topography; vegetative type (evergreen vs. deciduous), height or density; surrounding land uses; or distances to existing intrusive activities. Field observations and biologists reports suggest the tree height, density and tree type are factors that influence the distance of heron nesting to areas of development or human activity, and that with dense vegetation, nesting herons may more readily accept disturbance at a closer distance than at more open sites. For example, herons have established nests in conifer trees within 75 feet of occupied dwellings or parking lots in Vancouver, B. C. and Redmond, WA. Herons are nesting within 150 feet of a swimming pool/cabana and four story apartments in Kirkland, WA (separated by a dense growth of willows, cottonwoods and wetland shrubs). A second factor of importance (at least in rookeries observed in the Puget Sound area) is the height of rookery trees in relation to the surrounding, vegetation and surrounding land uses. In all rookeries field-examined and researched for this report, great blue herons either nested in the tallest trees in the immediate area or at a prominent location such as on a steep hillside. This preference for high nesting sites may be for ease of ingress and egress to the rookery and for nest defense and security (e.g., wide field of view for potential predators). A third factor common to the rookeries is the presence of a relatively unimpeded route for movement of adults to and from feeding areas, and the presence of vegetation immediately adjacent.to portions of the rookeries. For example, at the Spencer property in Redmond, fields, pastures and vegetation border the rookery adjacent to Bear Creek; at the Peasley Canyon rookery dense vegetation lies upslope and to the north of the site; and at Yarrow Bay, Kirkland and at Lake Sammamish State Park, wetland vegetation and/or open water exist adjacent to the rookeries. Management guidelines specific to the Black River rookery were developed based on results of the literature review and the site-specific features of the rookery,including tree height,topography,presence of water,nest and buffer,tree location and density, disturbance history of the rookery, surrounding land use, and the results of past field studies of the rookery. Given those factors, guidelines for building setbacks, heights, configuration, and building materials were developed for Tracts A and B. The setback guidelines for distance from the rookery to the nearest building differ from those previously recommended by the WDE and the USFWS. 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M.W44,...4,44:*..44.ii:Wai,:r. ::.i,,:::.;;;.::•.,;.„iy::':i':,::..".0!y,4 ,.Ali.:•.',ir,4•;i:':4, '':. / •••-'`•.:A'..,ii4%.•:4;::4::•'.. .:k•ZW.4;••'4•.,i'=.::0M4.:kil6 I ii•....., .4... ,.....t.- - "'r••,,.'" ..I ,..,.,,..:::.'.'. ..,j ii;i::..:.•?!!!:,t i';..:',VAT:i.,,,,A,...6.0•ZONA,fi MA.n..''''',.....r.:• :,:•"'. .1.'......:.''-"' '''''' • ' '• ."—. '... ..•,fAi,.:.-?.;',4(,••'..".4,..:E•'..4,4p.IN.W.gii;v::::,• .?:.,..;,-P't .... 4,44,,••,••••.4::„...•••• ...:•:&:-.,:a44.:.:;.f.:.m-.....f...%, .: • • • . , - • . , . • •, - . • • • " • •• •• • . • . " . • , • boundary includes open water of the P-1 Pond, scattered wetland emergent vegetation, and a strip of grasses and 10 to 12-foot tall poplar trees planted on the site in 1986. The present elevations of the site were established from disposal of material dredged from the P-1 Pond. No vegetated buffer occurs between the site and the rookery. Because of the open view of the nesting rookery from Tract A, it is recommended that building setback be a minimum of 600 feet from the nearest rookery tree. Additionally, the area from the edge of the P-1 Pond to the nearest structure should be planted with native vegetation, preferably cottonwoods, to provide future wildlife habitat and visual buffering. Specific development guidelines for Tract A are as follows: _ • Plant trees and dense shrub vegetation at the northernmost portion of the site from the edge of the P-1 Ponds back 600 feet from the nearest rookery tree; • Construction of any buildings should be no closer than 600 feet from the nearest nest tree and not exceed four stories; any taller buildings should be 1,000 feet or further from the rookery; • Create dense vegetated buffer along the eastern boundary of the site to provide wildlife habitat a vegetated travel route for herons along Springbrook Creek (see Figure 4); • Buildings should be constructed in earth or natural tones; any glass facing the rookery should be nonreflective, nontransparent or hooded to minimize possible disturbance to herons; • Human access to the P-1 Pond should be excluded during the period from February 15 to June 15; and • No restrictions on timing of construction activities are necessary unless closer than 600 feet from the rookery, then no outside construction should occur during the period from February 15 to June 15. Blackriver Corporate Park -.Tract B (Phase VIII Site Tract B (Phase VII) lies due south of the heron rookery and approximately 300 feet to the edge of the northern site boundary (Figure 4). The 300 feet distance from the rookery to the site boundary includes open water of the P-1 Pond, emergent wetland vegetation, and cottonwood, Oregon ash, and alder trees varying in height from 50 to 123 feet. Much of the site to the south consists of low-growing grasses and shrubs (Figure 4). In 1986, a double row of poplar trees were planted along the west edge of the site adjacent to the P-1 Pond. Remnants of the cottonwood forest are present on the east and southeast portions of the site. A number of factors were considered when establishing guidelines for building setbacks and construction activities for the site. These included type, density and height of existing vegetation; height and location of the nest trees; surrounding land uses; site B-13 topography; known ingress and egress routes to and from the rookery; and the unknowns of great blue heron tolerance to human disturbance. Guidelines for Tract B (Phase VII) are as follows: • Establish a no-build or vegetation-removal setback from the rookery of 400 feet; • Plant cottonwood,douglas fir,western red cedar,Sitka spruce,hemlock,grand fir, and native shrub vegetation at the northernmost portion of the site back 400 feet from the nearest rookery tree. The evergreens should be planted closest to structures, the cottonwoods closest to the P-1 Ponds; • If more than one building is planned for the site, the construction should be phased, with the first phase of construction done at a distance of 600 feet or greater from the rookery; • Response of herons to construction should be monitored during and following construction; • Once vegetation in the buffer zone has achieved an average height of 25 feet, and assuming no impact to herons is caused by construction of the first phase, construction of the second phase can be carried out to within 400 feet of the rookery; • Human access to the P-1 Pond should be excluded during the period from February 15 to June 15; • Create a dense vegetated no-build buffer (location and width shown in Figure 4) along the western boundary of the site along Springbrook Creek, and maintain existing dense vegetation along the northern boundary of the site to provide a vegetated ingress and egress route for herons leaving from and returning to the rookery (see Figure 4); • The buildings should be constructed in nonreflective earth or natural tones; the amount of glass facing the rookery should be minimized and nonreflective, nontransparent or hooded to minimize disturbance; and • Any building construction within 600 feet (400 to 600 feet) of the rookery should be accomplished only from June 15 though February 15 of any year. B-14 REFERENCES Literature Cited Bent, A.C. 1926. Life histories of North American marsh birds. U. S. Natural History Bulletin 135. Washington, D.C. Bjorklund, R.G. 1975. On the death of a Midwestern Heronry - General Notes. The Wilson Bulletin, Vol. 87, No. 2. Buckley, P.A. and F.G. Buckley, 1976. Guidelines for Protection and Management of Colonially Nesting Waterbirds. North Atlantic National Park Service, Regional Office, Boston, MA. Cottam and Uhler, 1945. U.S. Fish and Wildlife Service leaflet no. 272. Cottrille, W. and B.D. Cottrille. 1958. Great Blue Heron: Behavior at the Nest. University of Michigan Press, Pub. 102. Henny, C.L. and M. Bethers. 1971. Population Ecology of the Great Blue Heron With Special Reference to Western Oregon. The Canadian Field - Naturalist, Vol. 25, pp. 205-209. Henny, C.J. 1972. An Analysis of the Population Fynamics of Selected Avian Species With Special Reference to Changes During the Modern Pesticide Era. U.S. Fish and Wildlife Service, Wildlife Research Report 1. 99 pp. Ives, J.H. 1972. Common Egret and Great Blue Heron Nest Study, Indian Island, Humboldt County, California. California Department of Fish and Game, Wildlife Management Branch Administrative Report No. 72-9. 39 pp. Jenni, D.A. 1969. A study of the Ecology of Four Species of Herons During the Breeding Season at Lake Alice, Alachua County, FL. Ecological Monographs, 39: 245-270. Jones & Stokes Associates, Inc. 1988. Great Blue Heron Rookery Investigation, N.E. 95th Street, Redmond, WA. Technical Report. 13 pp. Kelsall, J.P. and K. Simpson. 1979. A Three Year Study of the Great Blue Heron in Southwestern British Columbia. Proc. Colonial Waterbird Group, VOL. 3:69-74. Leonard, W. 1985. Inventory of Great Blue Heron Nest Colonies in Southern and Western Puget Sound. Unpublished report to Washington Department of Wildlife. Lowe, F.A. 1954. The Heron. Collins, London. 164 pp. Palmer, R.S. 1962. Handbook of North American Birds. Yale University Press, New Haven, CT. 567 pp. B-15 Mark, D.M. 1976. An Inventory of Great Blue Heron (Ardea herodias) Nesting Colonies in British Columbia. Northwest Science 50(1):32-41. Murphy, M. 1988. Status of Great Blue Heron Colonies in King County, Washington. Western Birds 19:37-40. Parker, J. 1980. Great Blue Herons (Ardea herodias) in Northwestern Montana: Nesting Habitat Use and the Effect of Human Disturbance. University of Montana, Unpub. M.S. Thesis. 61 pp. Pratt, H.M. 1970. Breeding Biology of Great Blue Herons and Common Egrets in Central California. Condor 72:407-416. Short, H.L. and R.J. Cooper. 1985. Habitat Suitability Index Models: Great Blue Heron. U.S. Fish and Wildlife Service Biol. Rep. 82(10.99). 23pp. Short, H.L. and'R.J. Cooper. 1985. Habitat Suitability Index Models: Great Blue Heron. U.S. Fish and Wildlife Service Biol. Rep. 82 (10.99). 23 pp. Simpson, K. and J.N.M.Webb. 1987. Correlates and Consequences of Coloniality in Great Blue Herons. Can. J. Zool. 65:572-576. Teal, J.M. 1965. Nesting Auccess of Egrets and Herons in Georgia. Wilson Bulletin. 77(3):257-263. U.S. Fish and Wildlife Service. 1987. Letter to Donald Erickson, City of Renton regarding Blackriver Corporate Park Development. February 20, 1987. Van Wormer, R.L. 1988. Technical Report on Recommended Setbacks for Great Blue Heron Rookery. October 3, 1988. IES Associates. 10 pp. Van Wormer, R.L. 1987. Technical Report on Heron Activity on Blackriver Corporate Park Property and Recommendations to Reduce or Negate Impacts from Clearing and Grading Land South of the P-1 Canal Pond and the Designated Natural Area Easement. 23 pp. Washington Department of Wildlife (WDW). 1988. Draft, Recommended Management Guidelines for Washington Endangered and Threatened Species and Species of Concern - Great Blue Heron. Nongame Wildlife. Werschkul, D.F., E. McMahon, and M.Lertxchuh. 1976. Some Effects of Human Activities on the Great Blue Heron in Oregon. Wilson Bull. 88(4):660-662. Personal Communications Caldwell, R. June 19, 1989. Washington State Department of Transportation. Telephone conversation. B-16 McAllister, K. May 31, 1989. Wildlife Biologist, Nongame Wildlife Program, Washington Department of Wildlife. Telephone conversation. Murphy, M. June 2, 1989. Avian Researcher, Half Moon Bay, California. Telephone conversation. Owens, T. June 1, 1989. Wildlife Biologist, Nongame Wildlife Program, Washington Department of Wildlife. Telephone conversation. Penland, S. May 31, 1989. Urban Wildlife Biologist, Washington Department of Wildlife. Telephone conversation. Pesek,J. June 16, 1989. Regional Nongame Wildlife Biologist, Oregon Department of Fish and Wildlife. Telephone conversation. Van Wormer, R. May 31, 1989. Senior Biologist, IES Associates, Olympia, Washington. Telephone conversation. B-17 APPENDIX C CONSTRUCTION NOISE DATA Distance Attenuation for Typical Construction Activity Noise ==> Basic sound level drop-off rate: 6.0 dB/doubling ==> Atmospheric absorption coefficient: 0. 5 dB/100 meters ==> Reference Noise Level: 90 dBA ==> Distance for Reference Noise Level : 50 Feet DISTANCE ATTENUATION: DISTANCE TO dB CONTOURS: Receptor Noise Level Noise Contour Distance (dBA) at Contour Distance ( feet ) Receptor Value (dBA) ( feet) 50 90 .0 105 9 100 83.9 100 16 200 77 . 8 95 28 400 71. 5 90 50 600 67.7 85 89 800 64 .9 80 159 1,000 62 .6 75 267 1, 500 58. 3 70 457 2,000 55.1 65 792 2,500 52.4 60 1, 370 3,000 50. 1 55 2, 009 4, 000 46.0 50 3,007 5, 280 41.7 45 4, 122 7, 500 35.3 40 5, 491 9, 000 31.4 35 7, 535 10, 560 27.6 30 9,189 15,840 16 . 1 25 10,922 Notes : Drop-off calculations include atmospheric absorption at 0. 5 dB/100 meters, centered at the reference distance. Except for sounds with highly distinctive tonal characteristics, noise from a particular source will not be identifiable when its incremental noise level contribution is significantly less than background noise levels . Contour distance calculations are most accurate within the decibel range of the direct attenuation calculations . C-1 bistance Attenuation for Peak Construction Activity Noise • ==> Basic sound level drop-off rate : 6 .0 dB/doubling ==> Atmospheric absorption coefficient: 0. 5 dB/100 meters ==> Reference Noise Level: 95 dBA __> Distance for _Reference Noise Level : 50 Feet DISTANCE ATTENUATION: DISTANCE TO dB CONTOURS : Receptor Noise Level Noise Contour Distance (dBA) at Contour Distance . ( feet ) Receptor Value (dBA) ( feet ) 50 95.0 105 16 100 88 .9 100 28 200 82 .8 95 50 400 76 . 5 90 89 600 72.7 85 159 800 69 .9 ° 80 267 1, 000 67 .6 75 457 1, 500 63.3 70 792 2, 000 60.1 65 1, 370 2, 500 57.4 • 60 2, 009 3,000 55.1 55 3,007 4, 000 51.0 50 4,122 5, 280 46.7 45 5, 491 7, 500 40.3 40 7, 535 • 9, 000 36 .4 35 9,189 10, 560 32. 6 30 10,924 15,840 21.1 25 15, 304 Notes : Drop-off calculations "include atmospheric absorption at 0. 5 .dB/100 meters, centered at the reference distance. Except for sounds with highly distinctive tonal characteristics, noise from a particular source will not be identifiable when its incremental noise level contribution is significantly less than background noise levels . Contour distance calculations are most accurate within the decibel range of the direct attenuation calculations . C-2 Distance Attenuation for Jack Hammer Noise ==> Basic sound level drop-off rate : 6.0 dB/doubling ==> Atmospheric absorption coefficient: 1. 36 dB/100 meters • ==> Reference Noise Level : 95 dBA ==> Distance for Reference Noise Level : 50 Feet DISTANCE ATTENUATION: DISTANCE TO dB CONTOURS : Receptor Noise Level Noise Contour Distance (dBA) at Contour Distance ( feet ) Receptor Value (dBA) ( feet ) 50 95.0 105 16 100 88 . 8 100 28 200 82 . 4 95 50 400 75.5 90 88 600 71.2 85 159 800 67.9 80 247 1, 000 65. 1 75 415 1, 500 59.5 70 640 2,000 55.0 65 1,005 2, 500 51.0 60 1, 481 3,000 47. 3 55 1,999 4, 000 40.7 50 2, 547 5,280 • 33.0 45 3, 115 7, 500 20.7 40 4,035 9,000 12.9 35 5, 178 10, 560 5.1 30 5, 436 15, 840 0.0 25 7, 281 .Notes : Drop-off calculations include atmospheric absorption at 1 . 36 dB/100 meters, centered at the reference distance . Except for sounds with highly distinctive tonal characteristics, noise from a particular source will not be identifiable when its incremental noise level contribution is significantly less than background noise levels . • Contour distance calculations are most accurate within the decibel range of the direct attenuation calculations . C-3 Simulated Pile Driver Noise Impulse Event INPUT==> PEAK dB = 106.00 dB INPUT==> DURATION = 0.20 seconds INPUT==> BACKGROUND dB = 40 .00 dB ESTIMATED DATA POINT INCREMENTAL INTERVAL DECIBEL LEVEL CALCS SEQUENCE dB CHANGE COUNT 40. 00 10000 1 0.00 0 43 . 29 21311 2 3. 29 1 48 . 93 78201 3 5. 65 2 64 . 28 2679195 4 15. 35 3 106 .00 39810717055 5 41.72 4 106. 00 39810717055 6 0.00 5 106 . 00 39810717055 7 0.00 6 100 . 55 11349489303 8 -5. 45 7 95. 14 3263440539 9 -5. 41 8 89 . 80 954543632 10 -5.34 9 84 . 57 286406918 11 -5.23 10 79 . 49 88881259 12 -5.08 11 74 . 59 28757240 13 -4 .90 12 69 .90 9775571 14 -4.69 13 65. 46 3517192 15 -4.44 14 61. 30 1348782 16 -4.16 15 57 .44 554910 17 -3.86 16 53.92 246418 18 -3.53 17 50. 75 118768 19 -3.17 18 47.95 62441 2'0 -2.79 19 45. 56 35966 21 -2. 40 20 43. 58 22783 22 -1.98 21 42.02 15921 23 -1.56 22 40.90 12303 24 -1.12 - 23 40 .23 10533 25 -0.67 24 40. 00 10000 26 -0.23 25 SEL = 90. 35 dB ERROR CHECK: Leq(pulse) = 97 .17 dB INITIAL dB = 40.00 L(max) = 106.00 dB FINAL dB = 40.00 PEAK - SEL = 15.65 dB PEAK - Leq = 8.83 dB EXPONENTIAL RISE 1 SEL - Leq = -6.82 dB SINE FUNCTION DECAY C-4 PILE DRIVER EVENT PROFILE 0.2 Seconds Duration, Sine Wave Decay 110 ❑ 100 90 - 80 - U 0 70 - 60 - 50 - 40 i i ► i 0 2 4 6 8 10 12 14 16 18 20 22 24 TIME INTERVALS FOR EVENT Distance Attenuation for Peak Pile Driver Noise ==> Basic sound level drop-off rate : 6.0 dB/doubling ==> Atmospheric absorption coefficient: 0.5 dB/100 meters ==> Reference 'Noise Level : 106 dBA ==> Distance for Reference Noise Level : 50 Feet DISTANCE ATTENUATION: DISTANCE TO' dB CONTOURS : Receptor Noise Level Noise Contour Distance (dBA) at Contour Distance ( feet) Receptor Value (dBA) ( feet) 50 106 .0 105 56 100 99 .9 100 99 200 93. 8 95 176 400 87. 5 90 318 600 83 .7 85 538 800 80.9 80 852 1,000 78 .6 75 1, 447 1, 500 74. 3 70 2,104 2,000 71. 1 65 3,115 2, 500 68. 4 60 4, 243 3,000 66 .1 55 5, 619 4,000 62.0 50 7, 667 5,280 57 .7 45 10,379 7,500 51. 3 40 11,064 9,000 47. 4 35 15, 438 10,560 43. 6 30 16,135 15,840 32.1 25 19, 419 Notes : Drop-off calculations include atmospheric absorption at 0.5 dB/100 meters, centered at the reference distance . Except for sounds with highly distinctive tonal characteristics, noise from a particular source will not be identifiable when its incremental noise level contribution is significantly less than background noise levels. Contour distance calculations are most accurate within the decibel range of the direct attenuation calculations . C-6 Control of Impact Pile Driving Noise and Study of Alternative Techniques* ..... ..... / ....._. ._.,. ,.., r.„6.E., .....- .6\ • /.. f J_: •11P— + lija • r � - - ::.sari .� - Harjodh S. Gill summarizes some of the basic characteristics of impact pile drivers, which are considered to be one of the most significant sources of noise annoyance during the operation of civil engineering projects. Also described are alternative piling methods and noise reduction techniques that have been developed by several contractors. It is shown that recent legislation and other stimuli have resulted in a range of pile drivers that can be 20 to 40 dB(A) quieter than conventional impact pile drivers. A pile is a structural member,wholly or partially buried in Until recently the general attitude of the public towards the ground, which receives a load at its upper end and construction noise has been one of tolerance. Since con- transmits that load at depth to the substrata.The use of im- struction noise is a temporary phenomenon at any one loca- pact devices in driving the pile almost inevitably gives rise to tion people will tend to endure it to a greater degree than high noise levels. noise from other sources. The growing awareness of en- vironmental and industrial noise and its adverse effects on *Received 30 August 1982;revised 8 November 1982 man, together with the demand for stricter noise control, tWilson, lhrig & Associates. Inc., $776 Broadway, Oakland. has led to the introduction of new legislation in the United California 94618 Kingdom and many other countries. In the United This study was primarily carried out while the author was em- ployed as a research fellow at the Institute of Sound and \ib- 8 ration,University of Southampton.England panying Code of Practice,gave local authorities the power 76 NOISE CONTROL ENGINEERING JOURNAL/March-April 1983 C-7 to limit noise from construction and demolition sites." In steam.A compressor or a boiler. is required for operation. recent years, it has become more common for local The use of pneumatic impact devices range considerably in authorities and contract documents to attempt to specify size, the smallest pneumatic hammer being adapted con- permissible noise levels, use of specific types of plants, or crete breakers used for placing light trench sheeting. hours of working. Similarly, various authorities on the Pneumatic devices are also used for the extraction of piles. European continent have restricted the use of piling ham- The use of steam hammers is not preferred since steam pro- mers in densely populated residential areas and business ducing equipment is cumbersome compared with the alter- centers. native use of mobile air compressors. Because of a recent upsurge in legislation,there has been a concerted effort by civil engineering contractors and some Vibratory Pile Drivers.The vibratory pile driver relies upon manufacturers to reduce noise from impact pile drivers, the out-of-balance forces generated within the vibrator unit and in some cases to employ alternative piling techniques. containing a motor, shafts and eccentric weights. These These alternative techniques range from hydraulic, forces are transferred directly onto the pile head, the pro- vibratory,sonic and bored piling. gress of which may be assisted by additional dead weights This paper outlines the results of a study,primarily con- (kentledge).The excitation frequencies are generally in the ducted in the United Kingdom,of noise levels,spectra and range of 2 to 25 Hz.Vibratory pile drivers are also used for waveform shapes from a range of pile driving devices which pile extraction,but the pull of a crane attached to the top of were either adapted or designed specifically to produce the vibrator is required for the pile to be withdrawn from noise levels below those normally expected from conven- the ground. Attachment to the pile is usually by means of tional impact pile drivers. The results from conventional hydraulic clamping devices.The vibratory pile drivers per- pile drivers are also included for comparison purposes. In form best in granular soils or loose/medium density cohe- addition, noise reduction techniques employed by several sionless soils, and are o,f limited use in heavy clay. contractors are briefly outlined. Alternative piling techni- ques are presented together with measured data.This study Sonic Pile Drivers. A more recent refinement to the is fully documented in Ref. 3. vibratory pile driver is the resonant pile driver,in which the vibration excitation frequency is controlled to match that of a suitable longitudinal mode of the pile—in the range of 60 Categories of Pile Driving Equipment to 130 Hz. Angering Techniques for Pile Placemen .The employment There are many types of pile drivers.The most common of various augering techniques for pile placement offers a categories are listed. quieter alternative to impact pile driving if the design and support requirements allow. After a pile has been posi- Impact Pile Drivers. In the case of impact pile drivers, a tioned in the bore hole,concrete is poured into the base and regular sudden impact of a free piston or a weight on the the remainder filled with various mixtures of sand,cement top of a pile head is used to force the pile into the ground. and bentonite.Concrete piles up to over a metre in diameter The main types of impact pile drivers are the gravity drop are also constructed with the use of shaft augering rigs that hammer,diesel and pneumatic/steam. may be mounted on a crane or a special crawler rig.Smaller - Gravity Drop Hammer. The gravity drop hammer relies size bored piles may also be constructed using a percussive upon the application of gravity force created by the technique that employs a tripod and a winch. deceleration of a massive weight which impacts directly or indirectly onto the pile head and is raised by means of a Miscellaneous Pile Driving Techniques. Electro-osmosis winch back to the drop position and then allowed to fall techniques may be employed sometime in the near future. freely,usually by an associated crane. This method is still in its early stages of development and has already been used to assist in pile extraction. DC elec- DieseLS The diesel pile driver consists of a free piston in a trical current is applied to the pile to activate the ground cylinder, which may weigh several tons. It is a self- water and thereby cause lubrication at the pile/soil inter- contained and self-activating type of unit. The piston is face.This method seems to be suitable only in clay soils and propelled on its upward stroke by the explosion of an could have application in pile driving, although it is en- air/fuel mixture.The piston strikes the anvil at the end of a visaged that problems could arise where pile interlocking is downward stroke,which may fall under the action of gravi- required. ty(single acting hammer),or be propelled by the explosion Sometimes hollow core piles are driven with the internal of a second charge to further accelerate the hammer in its drop hammer. Impact noise emanates near the bottom of downward flight path (double acting hammer). the hollow pile section, which is under ground, after the Pneumatic or Steam: Pneumatic or steam pile drivers first few hammer blows. Thus, there is some degree of operate in the same manner as the diesel hammer;however, sound attenuation and damping by the soil surrounding the the medium that propels the ram is compressed air or hollow pile section. Volume 20/Number 2 C-8 The "Hush"gravity drop hammer design is based upon "Quiet" Pile Drivers—Noise the conventional drop hammer principle. The entire pile Reduction Techniques and the hammer assembly is enclosed in a large vertical rec- tangular box constructed,from a sandwich panel of steel In recent years there has been considerable progress in and PVC rubber, giving an overall thickness of 16 mm, reducing noise from pile drivers,which are considered to be which effectively contains the noise.The composite wall is a significant source of community noise. designed to reduce noise transmission in both mass and This section outlines the more successful noise reduction stiffness-controlled regions. The box has openings at the techniques employed by various contractors to reduce noise top through which the crane leads are passed and a door from pile drivers.Full details of noise reduction techniques that consists of an entire front side. The pile is installed developed by several other contractors and manufacturers through the full length of the door, which is locked into may be found in Ref. 3. position by large wing nuts. The box is made up of a Taywood "Pilemaster:" This is an electrically driven number of sections (each with a door) to accommodate hydraulic pile driver which generates its driving force from varying pile lengths. The bottom door contains an inspec- frictional restraint of piles in the panel contained by the tion hatch, which enables the operator to check progress machine. A panel of seven or eight piles are pitched at a during driving.The rig is mounted on rails at ground level, time and the system operates rams to force two of the piles where adjustments can be made by jacking the wheels,and downwards. When these have been driven to the full 750 bolted at the top to the crane jib cat-head through a univer- mm stroke of the rams the next pair are driven, and so on sal joint, which maintains alignment. At present, the rig until all eight piles have been driven 750 mm. All of the employs a cast iron hammer weighing 3 tons,which is nor- rams are then retracted,allowing the"Pilemaster"to lower mally dropped from a height of about 750 to 900 mm. itself to the new level,and the cycle is repeated sequentially. Sometimes hammers weighing 4 and 5 tons are also used. The initial reaction available for driving the first pair of Impacts from the hammer are transmitted via a hardwood piles is the weight of the "Pilemaster," about 10.5 to 12 dolly to a steel plate anvil situated on top of the pile.The rig tons, plus the weight of the piles connected to it. The "Pilemaster" can be used for extracting as well as driving either drives a single pile or a pair of piles.Another version piles and is best suited to cohesive soil, because friction is of the rig can handle `H' piles up to 25 metres in length. essential to the driving process.The added advantage of the At present,the "Hush" diesel hammer employs a 8225 "Pilemaster" is that once the piles have been driven far Berminghammer to drive the pile(s)enclosed within a large enough to support the rig,the crane which must hold it until vertical rectangular box whose construction is identical to this point is reached,can be released to pitch further piles or the one used for the"Hush"gravity drop hammer.This rig to do other work.Furthermore,unlike most other systems, is incorporated with an efficient ventilation system to there is neither impact noise nor the generation of signifi- replace burnt gases with clean air which enables the cant ground vibration from the "Pilemaster." "Hush" diesel hammer to "breathe" adequately. The rig has been fitted with a venturi tube mechanism at the top of Dawson"Quiet Piling Rig:"The Dawson"Quiet Piling the box and fed with compressed air from the crane's corn- Rig" design is based upon the drop hammer principle. A pressor, to accelerate the expulsion of hot exhaust gases steel jacket of 884 mm diameter encloses the cast iron ham- from the box. It also has two cylindrical pipes running mer weighing 5 tons,and the anvil.Noise is attenuated by a along the vertical length of the box, with openings at the specially cohstructed 125 mm dolly on top of the anvil,and bottom and the top, through which cool air is drawn into by polystyrene chips which are fed to the impact surface the box from the outside. through a 50 mm annular space between the hammer and the jacket, which serves to avoid metal-to-metal contact DMD"4 Ton Solid 3N Initial Drive Hammer:"This rig between the hammer and the anvil. Wooden strip spacers is based upon the drop hammer principle, employing a running vertically inside the shell are employed to guide the hammer weight of 4 tons.The hammer is not enclosed but is hammer drop on the dolly.Close fit of the rig to the piles is recessed on the underside.The hammer blow on top of the maintained with nylon rollers attached to the long pile pile head is cushioned by introducing an asbestos padding guides.This helps to prevent the hammer from moving ex- material and "ship rope" between the pile head and the cessively after each hammer blow has been struck and it is hammer. The hammer fall is guided by nylon guide strips also thought to provide a certain amount of pile vibration fixed to the hammer side slits.A strip of loosely connected damping. heavy duty conveyor belt is employed to reduce metal-to- metal contact between the hammer and the pile side. S.P.C. "Hush" Piling Rigs: Currently there are two Another version of the rig, namely the "5 Ton Solid 3N main "Hush" systems in operation, namely the "Hush" Drop Hammer,"employs a hammer weight of S tons.This gravity drop hammer and a"Hush"rig for use with a diesel hammer has an additional one ton weight added at the top, hammer. Both of these rigs are very much similar in otherwise it is identical to the"4 Ton Solid 3N Initial Drive appearance. Hammer." 78 NOISE CONTROL ENGINEERING JOURNAL/March-April 1993 C-9 • Basic Characteristics of Impact Pile Drivers . I The A-weighted pressure-time waveforms p(t), and sound pressure level time histories Lp(t),of noise from the 1iJ - I . 1 I pile drivers were examined digitally from the recorded = l i ta, analogue data with the aid of the ISVR Data Analysis •�.�'; �µt I/ lu'' :;•,i... - • Center facilities. Figure 1 shows an example of p(i) � Y waveform sampled at 1000 samples per second. , , `� Examination of all the p(t)waveforms showed that,in all cases where impulsive impact was taking place above the - I ground, noise produced by the hammer impact and the ex- 1,1 0.034s haust of working fluid was dominant over noise from other - r-i sources, such as ancillary equipment. Furthermore, the TIME study showed that the characteristic waveform shape from impact pile drivers was that of a decaying exponential im- Figure 1—A-weighted pressure time waveforms of DMD "4 Ton pulse,except where a significant exhaust pulse was present, Solid 3N Initial Drive Hammer" or where a high impact rate rendered the noise effectively continuous. v All the pressure-time data were integrated digitally to generate sound pressure level time histories with integration 90 times ranging from 10 to 500 m a s,to encompass the range of integration times found on sound level meters. Figure 2 N. shows an example of such a L,,Q) trace. The use of the ' shortest practicable integration time (10 ms) has allowed > 80 the rapid rise of the main impulse and the secondary peak I • . caused by exhaust emission to be observed. Generally, an la I , I it exponential pulse should exhibit a linear decay of Lp(t)on a 70 f: _ , : I !, �1 ' - the trailingedge of the pulse.The W y' ''••• •;1••+: .':: 0a. :+" g P raw Lp(t)traces gave no '; ;,•S__+,i:.• _ ;P.':. ;?_;..`IV -• :' clear indication of this, so that in each case the cumulative t ` • •:1F distribution function of sound pressure level CDF L + s t ;11 # I •Il. ' Tr ''`was derived as shown in Fig.3.The tendency to linearity ofF. 60 ,I i 1 1 , t1, the low probability sections of the CDF(Lp) curves in- i : I I I I dicated that even in the presence of an exhaust noise the I I predominant characteristic of the pulses is exponential 50 - where the repetition rate allows the separation of adjacent 25 50 75 100 impacts. This conclusion allows an examination of the TIME - SECONDS theoretical analysis of impact pulses(see Ref.3 for details). Figure 2—Sound pressure level time history for DMD '4 Ton Solid 3N Initial Drive Hammer,"with 10 ms integration period 1.0 i, , Measured Noise Data and Discussion of Results '• n Ti 1.1 9- . INTEGRATION PERIOD Table 1 shows typical noise levels from"quiet"and con- u - ••• 35 ms ventional pile drivers at a distance of 15 metres.The results ; 0.5 . are shown in terms of equivalent sound level,Leg,because m ; ____• 200 ins of its wide use as a single-number descriptor of en- o:c 1 -- 500 ms vironmental noise. A range of noise levels results from d 1 measurements performed at different times(see Table 1). i Table 1 places the piling and extracting rigs into three ' broad categories, according to noise levels emitted— 0.0 • • • •i " • "quiet," "semi-quiet" and "conventional" rigs. These 60 70 80 90 categories allow a direct comparison of noise levels and SOUND PRESSURE LEVEL - dB(A) assessment of the manufacturers success in reducing the Figure 3—Probability of exceeding a particular sound pressure noise levels in more general terms.Note that Table 1 also in- level for DMD "4 Ton Solid 3N Initial Drive Hammer" Volume 20/Number 2 C-1079 TABLE I MEASURED EQUIVALENT SOUND LEVELS(Leq)FROM PILE DRIVERS DRIVING SHEET PILES NORMALIZED TO A DISTANCE OF 15 METRES Item Machine Type Leq—dB(A) Classification of Rig* 1 SPC "Hush" drop hammer 62-63 Q 2 Dawson "Quiet Piling Rig" 69-72 Q 3 Evans "Stealth Hammer" 81-83 SQ 4 DMD "4 Ton Solid 3N Initial Drive Hammer" 74 Q 5 DMD "5 Ton Solid 3N Drop Hammer" 82 SQ 6 DMD "6 Ton NAP Hammer" 81 SQ 7 "Sh-Sh-Shelbourne's Piling Rig" 79 SQ 8 Dawson "4 Ton Conventional Drop Hammer" 97 C 9 SPC "Hush" diesel hammer 71 Q 10 Delmag D60 diesel hammer 95 C 11 Delmag D30/02 diesel hammer 97 C 12 Kobe 35 diesel hammer 100 C 13 BSP B15 diesel hammer 85 SQ 14 BSP "Impulse Pile Driver" 87-89 SQ 15 BSP 700N pneumatic hammer 104-106 C 16 BSP HD7 pneumatic extractor 93 C 17 Taywood"Pilemaster" 65-67 Q 18 Evans "Tomen Vibro VM2-5000" 81-86 SQ 19•. Hawker Siddeley"Resonant Driver Unit 400" 76-82 SQ •Q=Quiet,SQ=Semi-Quiet,C u Conventional Machine "Operated by Hawker Siddeley Canada Ltd.,Vancouver,B.C. dicates the three categories into which each of the pile driv- . which no consideration had been given to reducing the ing and extracting rigs have been classified. amount of noise generated. Examination of Table 1 indicates that the range of The typical frequency spectra from most of the piling equivalent sound levels, Leq, measured within each and extracting rigs is shown in Figs. 4a to 4f. A response category are 62 to 74 dB(A)for"quiet"rigs,76 to 89 dB(A) time encompassing several pulses was used to generate for"semi-quiet"rigs and 93 to 106 dB(A)for conventional third octave spectra. These figures show the third octave untreated rigs. These results indicate that the equivalent band levels normalized at a distance of 15 metres and are sound levels generated by extensively treated machines grouped according to type of rig, namely—gravity drop (that is, SPC "Hush" drop hammer, Dawson "Quiet Pil- hammers (Figs. 4a and 4b), diesel pile drivers (Figs. 4c ing Rig," DMD"4 Ton Solid 3N Initial Drive Hammer," and 4d), pneumatic rigs (Fig. 4e) and miscellaneous rigs SPC"Hush" diesel hammer and Taywood "Pilemaster") (Fig. 4f). are approximately 20 to 40 dB(A) lower than those The spectra shown in Figs. 4a and 4b, for gravity drop generated by untreated machines at equivalent distances, hammers, indicates that, in almost all cases, the levels at these reduced noise levels being equal to or less than that low and mid frequencies dominate the spectra which is produced by other construction site noise sources. Gener- essentially flat over this region and then gradually decay at ally, the expected equivalent sound levels generated by higher frequencies.The exception to this rule was the SPC medium size conventional piling rigs at similar distances are "Hush"drop hammer,shown in Fig.4a.This rig produces in the range of 90 to 100 dB(A),and for larger capacity con- a type of spectra normally associated with the diesel inter- ventional piling rigs from 100 dB(A)upwards.' nal combustion engine powered equipment, indicating a Note that the rigs which have been designed with a de- maximum at relatively low frequencies and containing less tailed consideration given to reducing noise,and sometimes energy at higher frequencies. even employing a totally new principle(as in the case of the The spectra for diesel pile drivers,shown in Figs.4c and Taywood "Pilemaster"), are the ones which have been 4d, are similar to those generated by drop hammers. Note classified as "quiet" rigs in Table 1.The conventional pile that the spectra for the diesel pile drivers sometimes peaks drivers and extracting rigs can be defined as those rigs in at low frequencies due to the exhaust noise. ao NOISE CONTROL ENGINEERING JOURNAL/March-April 1983 C-11 ate- : i l i r l ' t l i i i i i l i t l i i l i i i i i i i t_ � � E- t l t t l i i, l i i l i l l i i l i l l i t l i i l l'l_ � 90—= - R90= . _ 9 - - m i83-t .. , 60 _ _ \:, . T : 60� _ m 50 _ 12 to 50 y. _ 40 �.t . -I Q 40— P O - 30 € llliliilltlitltlllilitliilii 30 III1It1IIII11Ii , IIiIiiIIIItt2 31563 125 250 500 Ik 2k 41 8k 315 63 . 125 250 500 Ik 2k 4k 8k Octave Band Center Frequency, Hz p Octave Bond Center Frequency, Hz o Dawson"4 Ton Caweraionol Hamner` 0 CND -6 Ton NAP Hamner o Evans"Stealth Hammer" c`Sn-Sh-Shdbaxne's Prnq Rig" x Denson"Cale Piling Hammer` x DMD"4 Ton Sold 3N Imhof Drive Hammer" e SPC`Hush" Drop Hammer A DMD`5 Ton Solid 3N Drop Hamner" Figure 4a—Spectra normalized at a distance of 15 metres for gra- Figure 4b—Spectra normalized at a distance of IS metres for gra- vity drop hammer pile drivers vity drop hammer pile drivers 8 110 - lltilitltilltltIIIIlttlltlttf. c iltilitlutltiltlluululllrlII O 100- _ 90 I93 7 . . -4 _ -E, l40 ^ 11111111111111111111111111112 30 ^ tlilltiIlilttltiliiliiltilti= 31.5 63 125 250 500 Ik 2k 4k 8k 315 63 125 250 500 1k 2k 4k 8k Octave Bond Center Frequency, Hz cg Octave Bond Center Frequency, Hz o Delmaq 030,02 Diesel Hamner 0 SSP en Diesel Hammer o Delmog D60 Diesel homer - o SPC'?lush"Diesel Honmr X Kobe 35 Diesel Hamner Figure 4c—Spectra normalized at a distance of IS metres for diesel Figure 4d—Spectra normalized at a distance of 15 metres/or diesel pile drivers pile drivers Volume 20/Number 2 81 C-12 E II0 : I111111IIIll ► IIIIIIIIIIIIIII: 8 1I1tI11IItIIIIItIIIl11111111_ c �-- _ m — 90- _= i / \- 70 - 1 a 5 70 _ c 60 _ -Tallrh'4A\-11Ara""ja'a-\\ 1 1 60,_;_ - . 50 b 40 IIIIIIIIIIIIIIIIIIIIIIIIIIII= 'a 30 IIIIIIIIIIIIIIIII11I11I11111= 40 31.5 63 125 250 500 Ik 2k 4k 8k �, 31.5 63 125 250 500 1k 2k 4k 6k Octave Band Center Frequency, Hz 0 Octave Bond Center Frequency, Hz o BSP 700N Pneumatic Hammer Evans"Tomen Vibro VM2-` •" o BSP HD7 Pneumatic Hoer a Toyvrood"P,krnosterHomer x BSP"Impulse Pik Driver" Figure 4e—Spectra normalized at a distance of 15 metres for pneu- Figure 4f—Spectra normalized at a distance of 15 metres for matic pile drivers miscellaneous pile drivers 100 : IIIIIIIIIIIIIIIIIIIIIIIIIIII: ' 8 = — levels drop speedily at higher frequencies.This type of spec- 90 _ trum can be associated with the electric motor, which is ® = - employed by the "Pilemaster" to drive the rams m = : hydraulically. Furthermore, the continuously generated - broadband noise from the"Pilemaster"is considered to be - E - ii subjectively less annoying than the impulsive noise from 7O=- - other piling rigs. — Overall spectral characteristics of noise from the pile 2 60- _ drivers and extracting rigs have been discussed, but the - = spectrum of the SPC"Hush"drop hammer,shown in Fig. 4a, shows some particular feature of interest. The SPC g 50` E "Hush" drop hammer exhibits a gradual drop of spectral t$ = = energy from the 50 Hz band upwards. This is due to the • 40—- = design of the box, which reduces the energy in the higher tj — - frequencies to a greater degree than the energy at lower fre- 2 30 - iltiltiltilitliiltiliiliilliE quencies. The significance of this is that the energy at 315 63 125 250 500 1 k 2k 4k 8k higher frequencies is greatly reduced,thus generating lower g Octave Band Center Frequency, Hz equivalent sound levels when the noise is A-weighted. The o Small dace at the bottom opened effect of opening the small inspection door at the bottom of o Small door of the bottom closed the box facing the measurement location during the opera- tion of the SPC"Hush"diesel hammer is shown in Fig. 5. Figure 5—Showing the spectra normalized at a distance of 15 The figure shows that an appreciable increase in sound metres for the SPC"Hush"diesel hammer, with the small inspec- tion door at the bottom opened and closed levels occurs over the full range of frequencies when the small inspection door is opened, with the exception of the 63 and 80 Hz bands. This is thought to be caused by the Figure 4e shows the spectra for the pneumatic pile drivers "mass-air-mass resonance" effect of the sandwiched - and extracting rigs. The characteristics of such spectra are panels of the rectangular box. The overall effect of the that the levels are fairly constant over the mid-frequency acoustically designed box in reducing the noise emitted by range and contain appreciable energy at high frequencies. the SPC"Hush"diesel hammer is likely to be considerably The spectrum of the Taywood "Pilemaster," shown in more than the increase in sound levels exhibited in.Fig. 5, Fig. 4f, is flat in the middle frequency range and then the when the small inspection door at the bottom was opened. $2 NOISE CONTROL ENGINEERING JOURNAL/March-April 1983 C-13 Noise Data Summary for the Peasley Canyon Site interval 15-Minute Time Interval Statistics Hourly Starting Average Time Leg SEL- Lmin Lmax Lpk L10 L33 L50 L90 Leg 11:00 AM 63.5 93.0 56.5 70.5 87.0 65.0 64.0 63.0 59.5 61.8 11:15 AM 63.0 92.5 56.0 69.0 83.0 65.0 63.5 62.5 60.5 , 11:30 AM 58.5 88.0 53.0 66.0 82.0 60.5 59.0 58.0 56.0 , 11:45 AM 60.5 90.0 54.0 75.0 87.5 62.0 60.5 59.5 57.0 12:00 PM - 63.5 93.0 56.5 68.5 84.0 65.5 64.0 63.0 60.0 65.1 12:15 PM 64.0 93.5 59.0 70.0 86.0 66.0 64.0 63.5 61.5 12:30 PM 64.0 93.5 59.0 70.0 89.5 66.0 64.0 63.0 61.0 12:45 PM 67.5 97.0 59.5 81.5 97.5 69.0 65.0 63.5 61.5 1:00 PM 66.0 95.5 59.0 76.5 92.0 69.0 64.5 63.5 61.0 65.4 1:15 PM 64.5 94.0 60.0 70.5 86.0 67.0 64.5 63.5 61.5 1:30 PM G5.0 94.5 60.0 74.0 88.5 67.0 65.0 64.0 62.0 ' • . 3 :45 PM 66.0 95.5 60.0 78.5 95.5 68.5 65.0 64.0 62.0 2:00 PM 64.0 93.5 60.5 68..5 91.5 66.0 64.0 63.5 62.0 63.9 2:15 PM 63.0 92.5 ' 57.0 68.5 90.0 65.0 63.5 63.0 60.5 2:3C PM 65.5 95.0 57.5 79.0 94.0 69.5 63.5 62.0 59.5 2:45 PM 62.5 92.0 58.5 70.5 91.5 64.5 62.0 61.5 60.0 ! 3:00 FM 62.0 91.5 58.0 72.0 92.0 64.0 61.5 61.0 59.5 G2.1 3:15 PM 61.0 91.0 58.0 66.5 82.0 '62.5 61.5 61.0 59.5 . :30 PM. 63.5 93.0 58.0 76.5 92.5 65.0 62.0 63.0 60.0 3:4`_. PM 61.5 91.0 58.0 68.5 82.0 63.0 62.0 G1.0 60.0 4:00 PM 62.5 92.0 58.0 74.5 92.5 65.5 63.0 60.5 59.0 64.3 4:15 PM 65.5 95.0 57.5 77.0 99.0 69.0 62.5 61.5 60.0 4:30 PM 63.0 92.5 57.5 77.0 91.5 65.0 61.5 61.0 59.0 4:4 , ,, C5.5 95.0 58.0 80.0 95.5 69.0 62.0 G1.0 76.5 5:00 FM 63.0 90.5 57.5 72.0 97.0 62.0 60.5 60.0 59.0 60.3 5:15 PM 60.5 90.0 58.5 66.0 92.'0 61.5 61.0 60.5 59.5 ' 5:30 PM 60.0 89.5 57.5 68.0 96.0 61.0 60.5 60.0 59.0 5:45 PM 59.5 89.0 57.0 72.0, 102.5 60.5 59.5 59.0 58.5 6:00 PM 61.0 90.5 57.0 74.0 113.5 62.0 60.5 60.0 58.5 62.1 6:15 PM G3.0 92.5 56.0 74.0 92.0 66.5 61.5 60.0 58.5 6:30 PM 61.5 91.0 56.5 76.5 91.0 61.5 . 59.5 59.0 57.5 6:45 PM 62.5 92.0 54.0 77.0 94.0 63.5 59.5 59.0 57.0 , 7:00 PM 64.0 93.5 55.0 79.0 95.0 65.5 59.5 58.5 56.5 62.3 7:15 PM 63.0 92.5 54.0 75.0 108.0 67.5 59.5 58.5 56.0 7:30 PM 62.5 92.0 53.0 77.0 92.0 65.0 58.0 57.0 55.5 7:45 PM 57.5 87.0 54.0 66.0 104.5 59.0 58.0 57.0 55.0 8:00 PM 62.5 92.0 57.0 75.0 115.5 65.'5 62.5 60.5 58.5 61.9 8:15 PM 63.5 93.0 58.5 78.0 109.0 65.0 62.0 G1.0 60.0 8:30 PM 61.0 90.5 57.0 72.0 108.5 62.5 60.0 59.5 58.5 8:45 PM 59.5 89.0 55.0 75.0 116.0 60.5 59.0 58.5 57.0 , f • C-14 Noise Data Summary for the Peasley Canyon Site Interval 15-Minute Time Interval Statistics Hourly Starting ---- Average Time Leg SEL Lmin Lmax Lpk L10 L33 L50 L90 Leg 9:00 PM 58.0 87.5 52.5 70.5 112.0 59.0 58.0 57.5 56.0 57.0 9:15 PM 56.5 86.0 52.0 67.0 98.5 58.5 57.0 56.0 54.5 9:30 PM 57.0 86.5 50.5 65.5 101.0 58.5 57.0 56.5 54.5 9:45 PM 56.5 86.0 51.5 66.5 96.0 58.0 56.5 56.0 53.5 10:00 PM 56.5 86.0 49.5 69.0 101.5 58.5 56.5 56.0 53.5 56.5 10:15 PM 55.5 85.0 50.0 63.0 94.0 57.0 55.5 55.0 53.0 10:30 PM 57.0 86.5 48.0 72.0 93.5 58.0 56.0 55.0 52.5 10:45 PM 57.0 86.5 48.5 70.5 96.5 58.5 56.0 55.0 52.5 11:00 PM 56.5 86.0 51.5 63.0 94.5 58.0 56.5 56.0 53.5 56.4 11:15 PM 56.0 86.0 50.5 65.0 89.0 58.0 56.5 55.5 53.0 11:30 PM 56.0 85.5 49.0 67.0 99.0 58.5 56.5 55.5 52.5 11:45 PM 57.0 86.5 50.5 69.5 92.5 59.0 56.5 55.5 53.0 12:00 AM 56.0 85.5 50.0 62.5 93.0 58.5 56.5 55.5 52.5 54.6 12:15 AM 54.5 84.0 47.0 59.5 92.0 57.0 55.0 54.0 50.5 12:30 AM 53.5 83.0 45.0 59.0 86.0 56.0 53.5 52.5 50.0 12:45 AM 54.0 83.5 45.5 64.0 93.5 57.5 53.5 52.0 48.5 1:00 AM 52.0 81.5 41.0 65.5 94.5 54.5 51 .5 50.0 46.0 54.5 1:15 AM 53.0 82.5 42.0 63.0 93.0 56.5 52.5 50.5 46.0 1:30 AM 57.5 87.0 41.5 75.0 91.5 58.0 53.6) 51.0 46.0 1:45 AM 53.0 82.5 42.5 68.5 94.0 55.5 52.0 50.5 46.0 2:00 AM 52.0 81.5 41.0 61.5 95.0 55.0 52.5 51.0 46.0 50.5 2:15 AM 49.5 79.0 40.0 56.5 94.0 53.0 50.0 48.5 43.5 2:30 AM 49.5 79.5 39.0 . 58.0 91.0 53.5 50.0 48.0 42.0 2:45 AM 50.5 ?0.0 39. . 51.0 54.5 50.0 48.0 43.0 3:00 AM 51.5 81.0 41.0 62.0 88.0 55.0 51.0 49.0 45.0 51.0 3:15 AM 49.5 79.0 40.0 58.0 93.5 53.0 50.0 48.0 42.0 3:30 AM 50.0 79.5 39.5 57.0 88.5 53.5 50.5 48.5 42.5 3:45 AM 52.5 82.0 40.5 63.5 . 88.0 56.0 52.0 50.5 44.5 4:00 AM 52.5 82.0 42.0 60.5 85.0 56.5 53.0 51.0 45.5 52.8 4:15 AM 52.0 81.5 44.0 59.0 83.5 55.0 52.5 51.0 48.5 4:30 AM 52.5 82.0 45.5 59.5 82.0 55.5 53.0 51.5 48.5 4:45 AM 54.0 83.5 45.0 60.0 74.0 • 56.5 54.5 53.5 50.0 5:00 AM 55.5 85.5 48.0 60.0 86.0 58.5 56.0 55.0 52.0 58.4 5:15 AM 58.0 87.5 53.0 61.5 79.0 59.5 58.5 57.5 56.0 5:30 AM 59.5 89.0 55.5 63.0 81.0 60.5 60.0 59.5 57.0 5:45 AM 59.5 89.0 56.5 63.0 80.5 60.5 60.0 59.5 58.0 6:00 AM 60.0 89.5 57.0 67.0 84.0 • 61.5 60.5 60.0 58.5 62.6 6:15 AM 61.0 90.5 57.5 65.0 92.0 62.0 61.0 60.5 59.5 6:30 AM 61.5 91.0 59.0 68.0 84.0 62.5 62.0 61.5 60.0 6:45 AM 65.5 95.5 59.0 79.0 97.5 67.0 63.0 62.0 60.5 • C-15 Noise Data Summary for the Peasley Canyon Site - Interval 15-Minute Time Interval Statistics Hourly Starting Average Time Leg SEL Lmin Lmax Lp). L10 L33 L50 L90 Leg 7:00 AM 68.0 97.5 62.0 82.5 100.0 71.5 66.0 65.0 63.5 65.8 7:15 AM 66.0 96.0 59.0 77.0 91.5 69.0 66.0 65.0 61.0 7:30 AM 64.0 93.5 59.5 72.0 88.0 65.0 64.5 64.0 61.5 7:45 AM 64.0 93.5 60.5 68.0 84.5 65.0 64.5 64.0 63.0 8:00 AM 63.5 93.0 59.0 68.0 88.5 65.0 64.0 63.5 62.0 64.4 8:15 AM 64.0 93.5 58.0 68.5 80.5 65.0 64.0 63.5 62.0 8:30 AM 63.5 93.0 57.5 68.0 81.5 65.5 . 64.0 63.0 60.5 8:45 AM G6.0 95.5 62.0 78.5 93.5 67.5 65.0 64.5 63.0 9:00 AM 66.5 96.0 58.5 84.5 101.0 68.0 65.0 64.0 62.5 64.5 9:15 AM 63.5 93.5 58.5 70.5 82.5 G5.0 64.0 63.5 61.5 9:30 AM 61.5 91.0 57.5 66.0 80.0 63.0 62.,0 61.0 59.5 9:45 AM 65.0 94.5 58.5 80.5 95.5 66.0 62.5 61 .5 60.5 10:00 AM 61.5 91.0 56.5 71.0 89.0 63.5 62.0 . 61.0 59.0 62.2 10:15 AM 61.5 91.0 58.5 66.5 82.0 63.0 61.5 61.0 60.0 10:30 AM 62.5 92.0 58.5 68.5 38.0 G4.0 ' 62.5 62.0 60.0 , 10:45 AM 63.0 92.5 44.5 70.0 '37.0 65.0 62.5 62.5 60.5 24-Hour Data: 62.1 111.4 39.0 84.5 1:G.0 64.5 61.5 60.0 51.0 61.9 ' L.•9 63.8 START DATE: 1-22-90 STOP DATE: 1-23-90 Le n 61.0 START TIME: 10:45:01 STOP TIME: 10:45:00 Lr, - 56.9 INTERVAL LENGTH: 15 MINUTES Ldn = 65.0 CNEL = 65.5 Ntes All data collected with A-weighted, uw r „ .i ' .. ,e a,ecc. 3 .,. tingr Leq = equivalent constant sound level for the specified tine period SEL = single event level (cumulative noise event integrated over a 1-second period) Lmin = minimum 1-second average sound level Lmax = maximum 1-second average sound level Lpk = maximum sound level sampled during the specified time interval (8 readings per second) L10 = sound level exceeded 10 percent of the time L33 = sound level exceeded 33 percent of the time L50 = sound level exceeded 50 percent of the time L90 = sound level exceeded 90 percent of the time Ld = average daytime (7 a.m. - 7 p.m.) sound level Le = average evening (7 p.m. - 10 p.m.) sound level , Ln = average nighttime (10 p.m. - r7.a.m.). sound level Ldn = day-night weighted average sound level CNEL = community noise equivalent level i Rounding errors cause 24-hour Leg computed from 15-minute Leg to differ slightly from the 24-hour Leg value 'computed directly by the noise meter C-16 Noise Data Summary for the Black River Corporate Park Site Interval 15-Minute Time Interval Statistics Hourly Starting - - - - - Average Time Leg SEL Lmin Lmaa Lpk L10 L33 L50 L90 Leg 11:00 AM 56.0 85.5 51.0 66.0 86.0 59.5 56.0 54.0 52.0 56.1 11:15 AM 56.5 86.0 51.5 66.0 86.0 59.5 56.5 55.0 53.0 11:30 AM 54.5 84.0 51.5 68.0 95.5 56.5 54.5 54.0 52.5 11:45 AM 57.0 86.5 51.5 66.0 80.0 59.5 57.5 56.0 52.5 12:00 PM 56.0 85.5 51.5 63.0 92.5 58.5 56.0 55.0 52.5 56.9 12:15 PM 59.5 89.0 51.5 75.0 90.5 60.5 57.0 55.5 52.5 12:30 PM 55.5 85.0 50.5 70.5 100.0 58.0 55.5 54.0 52.0 12:45 PM 55.0 84.5 50.5 65.5 94.0 57.5 55.0 53.5 52.0 1:00 PM 56.0 85.5 51.0 65.0 90.5 59.0 56.0 55.0 52.0 56.5 1:15 PM 57.5 87.0 51.5 70.0 84.5 59.5 57.0 55.0 52.5 1:30 PM 56.5 86.0 51.0 70.0 103.5 57.5 55.5 54.0 52.5 1:45 PM 56.0 85.5 51.0 71.0 96.5 59.0 55.5 54.5 52.5 2:0C PM 56.0 C5.5 52.0 67.0 92.0 58.5 56.0 55.0 53.0 55.9 2:15 PM 55.5 85.6 51 .0 67.5 96.0 58.0 56.0 55.0 52.5 2:30 PM 56.0 85.5 46.5 71.0 99.5 57.5 53.0 52.0 50.0 2:45 PM 55.0 85.`. 49.'• 74.0 92.0 56.0 53.0 52.5 51.0 3:00 PM 54.0 83.`- 3.0 68.0 82.0 54.5 52.5 52.0 50.5 53.6 3:15 PM 53.0 83.0 42.5 68.5 01.5 55.0 52.5 52.0 50.0 3.30 PM 54.5 04.5 50.0 67,0 ._ 57.0 53.5 52.5 51.0 3:45 PM 52. £:;'.•: .. 62.0 77.5. 54.0 52.0 52.0 51.0 4:00 PM 54.0 94. 62.0 77.0 56.5 54.0 53.0 51.5 54.7 4:15 PM 56.0 85.5 50.0 71.0 82.5 57.5 54.5 53.5 51.5 4:30 PM 54.0 84.0 50.5 62.5 78.0 56.0 54.0 53.0 52.0 f:1, .,.. ..t, . °' 3r . 53.5 52.5 51.5 5:00 PM 54.0 32.5 52.5 65.5 79.0 56.0 53.0 52.5 51.0 53.5 5:15 PM 54.0 83.5 !c.n 64.0 80.5 56.5 53.0 52.5 51.5 5:30 PM 53.0 82.5 -2.5 60.0 74.0 54.5 52.5 52.0 51.0 5:45 PM 53.0 83.0 56.0 62.0 75.5 55.5 52.5 52.0 • 51.0 • 6:00 PM 54.5 84.0 50.0 63.0 76.5 58.0 54.0 52.5 51.5 55.1 G:15 PM 56.5 86.0 50.0 66.5 81.0 60.0 55.5 54.0 51.5 6:30 PM 55.5 85.0 49.5 57.0 83.5 59.0 55.0 52.0 51.0 6:45 PM 53.5 83.0 49.5 65.0 79.5 56.0 52.0 51.5 50.0 . 7:00 PM 57.5 87.0 49.0 69.0 82.5 61.5 56.5 54.0 50.5 56.6 7:15 PM 55.0 84.5 43.5 65.0 79.0 59.0 54.0 51.5 50.5 7:30 PM 53.5 83.5 48.5 65.0 78.5 57.0 51.0 50.5 49.5 7:45 PM 58.5 88.0 48.5 70.0 82.0 62.5 58.0 54.0 50.0 8:00 PM 57.0 86.5 47.5 68.5 86.0 61.5 53.0 51.0 48.5 54.1 8:15 PM 51.5 81.0 47.5 64.0 78.5 51.5 49.5 49.0 48.0 8:30 PM 52.0 81.5 47.0 65.0 78.0 53.0 50.5 49.5 48.0 8:45 PM 53.5 83.5 47.0 62.0 76.5 58.0 53.0 51.0 48.5 C-17 Noise Data Summary for the Black River Corporate Park Site Interval 15-Minute Time Interval Statistics Hourly , Starting - •. -- _. Average 1 Time Leg SEL Lmin Lmax Lpk L10 L33 L50 L90 Leg 9:00 PM 50.0 79.5 47.0 61.0 74.0 51.0 49.0 48.0 47.5 52.2 9:15 PM 53.5 83.0 47.5 65.5 78.0 56.0 51.0 50.0 48.5 , 9:30 PM 50.5 80.0 47.5 62.0 74.5 51.5 50.0 49.5 48.0 9:45 PM 53.5 83.0 47.0 66.5 79.0 57.0 50.0 49.0 48.0 10:00 PM 52.0 81.5 47.5 62.0 76.0 54.0 50.0 49.0 48.5 52.2 -"" 10:15 PM 51.5 81.0 47.0 63.0 76.5 54.0 50.5 50.0 48.5 10:30 PM 51.5 81.0 47.0 61.5 74.5 53.5 50.5 49.5 48.0 10:45 PM 53.5 83.0 46.5 65.5 80.0 58.0 50.0 49.0 47.0 11:00 PM 49.5 79.0 ' 46.0 59.0 72.0 52.0 49.5 49.0 47.0 51.5 11:15 PM 51.5 81.0 46.0 63.5 79.0 55.0 49.0 48.0 47.0 13 :30 PM 49.0 78.5 46.5 54.5 69.0 51.0 49.0 48.5 47.5 11:4`. PM 54.0 83.5 46.0 67.5 83.0 57.0 49.5 48.5 47.5 2:00 AM 48.5 78.5 45.5 60.0 74.0 49.5 48.0 47.5 46.5 49.6 32:35 AM 50.5 80.0 44.0 65.5 79.0 52.0 48.0 47.0 45.0 12:30 AM 49.0 78.5 43.0 61.0 74.5 53.0 46.5 45.5 44.0 12:45 AM S0.0 79.5 43.5 63.5 76.5- 53.5 47.5 46.0 44.5 1:00 AM 47.0 76.5 43.0 59.5 73.0 48.5 46.0 45.0 44.0 46.9 3:35 7.M 4C.0 75.5 43.0 58.0 70.5 47.0 45.5 45.0 44.0 3 :30 AM 47.0 76.5 43.5 54.5 73.5 50.0 45.5 45.0 44.5 77.0 44.0 60.5 74.5 49.0 46.5 46.0 45.0 2:00 7.5 77.0 44.0 55.0 68.5 51.0 47.0 46.0 45.0 52.6 2:15 All 56.5 86.0 43.5 72.0 86.0 55.0 47.0 46.5 45.0 2:30 AM 51.5 81.0 44.0 63.5 80.5 56.0 47.5 46.5 45.0 . . .. 6:.1 74.0 53.0 47.0 46.0 4. .0 3:00 AM 46.5 76.0 43.5 59.0 72.0 47.0 46.0 45.5 44.5 47.8 3:35 AM 49.5 79.0 44.5 59.0 72.0 54.0 47.5 47.0 45.5 3:30 AM 47.0 76.5 45.0 51.5 77.5 48.0 47.0 47.0 45.5 3:45 AM 47.5 77.0 44.5 51.5 65.5 48.5 47.5 47.0 46.0 4:00 AM. 47.5 77.0 45.5 51.5 67.0 48.5 47.5 47.0 46.5 48.8 4:15 AM 49.0 78.5 46.5 59.0 71.0 50.5 48.5 48.0 47.0 4:30 AM 49.5 79.0 47.0 53.0 69.0 50.0 49.5 49.0 48.5 4:45 AM 49.0 78.5 47.0 52.0 66.5 50.0 49.0 49.0 48.0 5:00 AM 52.0 81.5 47.5 61.0 75.0 55.0 50.5 50.0 48.5 54.2 5:15 AM 54.0 83.5 49.5 67.5 80.5 54.0 53.0 52.5 51.0 5:30 AM 55.0 84.5 52.0 69.5 81.5 54.5 53.5 53.0 52.5 5:45 AM 55.0 84.5 52.0 67.0 78.0 56.0 54.0 54.0 53.0 6:00 AM 58.0 87.5 53.0 69.5 83.5 61.0 56.0 55.0 . 54.0 57.6 6:15 AM 55.5 85.0 53.0 65.5 79.0 57.0 55.0 54.5 54.0 6:30 AM 58.0 87.5 53.5 67.0 81.0 61.0 57.5 56.0 54.5 6:45 AM 58.5 88.0 54.0 66.5 81.0 62.0 58.0 56.5 55.0 I C-18 Noise Data Summary for the Black River Corporate Park Site Interval 15-Minute Time Interval Statistics Hourly Starting - Average Time Leg SEL Lmin Lmax Lpk L10 L33 L50 L90 Leg 7:00 AM 61.0 90.5 54.5 73.0 90.5 63.5 61.5 59.5 56.0 59.4 7:15 AM 59.5 89.0 54.0 69.0 83.0 62.5 59.0 57.0 55.0 7:30 AM 59.0 88.5 54.5 67.0 81.0 62.5 59.0 57.0 55.5 7:45 AM 57.5 87.0 54.0 64.0 79.0 59.5 57.0 56.0 55.0 8:00 AM 57.5 87.0 53.0 66.0 79.5 60.5 56.5 55.5 54.0 59.1 8:15 AM 59.0 88.5 54.0 67.5 80.5 62.0 58.0 57.0 55.0 8:30 AM 59.0 89.0 53.5 70.0 84.0 63.0 58.0 56.5 54.0 8:45 AM 60.5 90.0 53.0 76.0 90.0 63.0 59.0 56.0 54.0 9:00 AM 56.5 86.0 52.5 64.5 77.5 59.5 56.5 55.5 53.5 61.0 9:15 AM 65.5 95.0 52.0 83.0 98.5 66.0 59.5 57.0 53.5 9:30 AM 56.5 86.0 52.0 71.0 82.0 58.0 55.0 54.5 53.0 9:45 AM 57.5 87.0 51.0 64.5 82.0 61.0 57.5 55.0 52.5 10:00 AM 56.5 86.0 50.5 68.0 80.0 59.5 55.5 53.5 52.0 61.6 10:15 AM 56.5 86.0 51.5 66.5 82.0 59.0 56.0 54.5 52.5 10:30 AM 66.5 96.0 52.0 83.0 99.5 69.5 58.5 55.5 53.0 10:45 AM 56.0 85.5 51.5 G7.0 84.0 58.0 55.0 54.0 52.5 24-Hour Data: 56.3 105.6 43.0 83.0 103.5 58.5 54.5 52.5 46.5 56.1 Ld = 57.8 START DATE: 1-23-90 STOP DATE: 1-24-90 Le = 54.6 START TIME: 14:30:01 STOP TIME: 14:30:00 Ln = 52.5 INTERVAL LENGTH: 15 MINUTES Ldn = 60.0 CNEL = 60.3 Notes: All data collected with A-weighted, slow re:.l,:,nse (8 :,ample: per _ecord) meter settings Leg = equivalent constant sound level for the specified time period SEL = single event level (cumulative noise event integrated over a 1•-second period) Lmin = minimum 1-second average sound level Lmax = maximum 1-second average sound level Lpk = maximum sound level sampled during the specified time interval (8 readings per second) L10 = sound level exceeded 10 percent of the time L33 = sound level exceeded 33 percent of the time L50 = sound level exceeded 50 percent of the time L90 = sound level exceeded 90 percent of the time Ld = average daytime (7 a.m. - 7 p.m.) sound level Le = average evening (7 p.m. - 10 p.m.) sound level Ln = average nighttime (10 p.m. - 7 a.m.) sound level Ldn = day-night weighted average sound level CNEL = community noise equivalent level Rounding errors cause 24-hour Leq computed from 15-minute Leg to differ slightly from the 24-hour Leg value computed directly by the noise meter • • C-19 dBA PERCENTILE DISTRIBUTIONS • 75 — ---- — II 70 — Li Q ►1 m 65 — wo.26...., l>il i. .. -1 60 — ---, LI o � 55 — tii I , a- CL a_ .. .a• p `. Z 50 co — D 10 0 (/) isA 45 — ia 40 I I I 1 I I 1 1 1 0 20 40 60 80 100 PERCENT OF TIME EXCEEDING NOISE LEVEL 0 PEASLEY SITE + BLACK SITE 1 - MINUTE TIME HISTORIES 75 m 70 I v , > 65iii I ' i V 'I iLi o f ; D 1 01„. ' 11)11) Z II i D i , ii 1 D 60 1 55 1 ' ' "I, ' n• I irl .1 'Piliolf i i . 1 IIl, , ik 1 ( u 1I ' d rI / I ill I I1 D r`Irl w lift:,t:, ' E ,• E. w 50 1 1,, 4, z ttlisin p. D� 1 45 i ii 40 , 11 AM 2 PM 5 PM 8 PM 11 PM 2 AM 5 AM 8 AM 11 -AM TIME OF DAY PEASLEY SITE BLACK SITE APPENDIX D Foundation and Seismic Analysis Li Golder Associates Inc. . RECEIVED aCONSULTING ENGINEERS JAN 2 6 199u INCA ENGINEERS January-25, 1990 Our ref: 903-1005 INCA Engineers Inc. 11820 Northup Way, E. Bldg. Bellevue, Washington 98005 ATTENTION: Mr. Dan Russell RE: GEOTECHNICAL INPUT FOR EIS TRACTS A AND B BLACK RIVER CORPORATE PARK RENTON, WASHINGTON Dear Dan: The purpose of this letter is to provide sufficient response to the EIS process necessary to determine the impacts of construction during the installation of the foundation systems required for the proposed buildings. In preparing this letter we have reviewed the Preliminary Soil and Foundation Investigation Report, dated April 9, 1979. Based on discussions with the project architect we understand the proposed office park would include buildings ranging between one and seven stories in height. In summary, we have determined that for the standard foundation support systems considered feasible for this site, there are no perceived impacts on the environment as it relates to the construction process or final product. For structures ranging between one and two stories in height we would expect a preload to be used for site preparation and conventional shallow foundations used for the support of the building. Impacts associated with this type of operation, as it relates to the foundation system would be associated with the transport of fill material to the site for preloading, and the use of a clean well graded structural backfill. Based on our experience in the project area, structures over two stories typically require deep foundation support. The two standard pile types used in this area for deep foundation support are driven steel pipe piles and drilled auger cast-in-place piles. 1n general, for the range of loads anticipated by the project structural engineer, and the economics of the pile alternatives, the auger cast-in-place pile would probably be the foundation support system of choice by the owner and engineer. Auger cast piles in this area are typically 40 to 60 feet in length and are designed for an allowable capacity of approximately 50 tons. Based on numerous projects we have been involved in with using auger cast piles, there are no GOLOER ASSOCIATES INC.•t1C4•.gETH AVENUE N E. REDMOND ISEATTLEI.WASHINGTON.U S.A.98052•TEL.1206)883.0777•FACSIMILE(206)8E2 549E•TELEX 5106002944 OFFICES IN UNITED STATES•CANADA•UNITED KINGDOM•SWEDEN•AUSTRALIA January 22, 1990 2 903-1005 perceived impacts on the environment during construction for this system. Steel pipe piles , are typically driven 40 to 60 feet below existing ground surface and are designed for an allowable capacity of 70 to 100 tons. If the steel pipe pile support system is selected, we would expect ground vibration and noise during the pile driving to be of concern. However, based on our experience during the pile driving for the S.W. 7th Street bridge spanning the P-1 Channel, which is supported on driven steel pipe piles, we would not expect any noticeable or serious impact related to the installation of driven steel pipe piles. We understand that seismic design input is also required for this project. As project geotechnical engineer for the Renton Waste Water Treatment Plant immediately adjacent to the site, we not only provided detailed preload and pile design recommendations but also completed seismic design studies. Those details have been provided to you in an earlier transmittal. If you have any questions or require additional clarification following your review of this letter report, please do not hesitate to call. Sincerely, R ASSOCIATES DE INC., , . ,,,,David M. otton, P.E. Associate DMC/cla cc: Mark Miller, Vice President of Development, FirstCity Development Golder Associates APPENDIX E Air Quality Background and Modeling APPENDIX E AIR QUALITY BACKGROUND AND MODELING PHYSIOLOGICAL EFFECTS OF CARBON MONOXIDE Carbon monoxide (CO) is a colorless, odorless, and tasteless air pollutant affecting both the cardiovascular system (the heart and circulatory systems) and the central nervous system. The major medical effects from CO inhalation are caused by reduced oxygen transport to body tissues. Heart and brain tissues are especially sensitive to reduced oxygen availability. Hemoglobin molecules in the bloodstream provide the mechanism for transporting oxygen from the lungs to the tissues of the body. Oxygen diffuses into the bloodstream from air in the lungs and then binds to hemoglobin molecules. Metabolic processes keep oxygen levels low in body tissues, resulting in the release of oxygen from hemoglobin molecules and subsequent diffusion to body tissues. The normal concentration of oxygen in air (about 21 percent by volume for dry air) will typically saturate 97-98 percent of the blood's hemoglobin with oxygen. CO also combines readily with hemoglobin, forming carboxyhemoglobin (COHb). Because CO binds,200-250 times more readily with hemoglobin than does oxygen, small a- mounts of CO can saturate a large proportion of the blood's hemoglobin. When bound to hemoglobin, CO produces two effects: it reduces the total oxygen transport capacity of the circulatory system, and it reduces the rate at which the available oxygen is released from the blood to body tissues. This second effect makes CO poisoning more serious than a compa- rable level of simple anemia. There is also increasing evidence of a direct CO toxicity effect on cellular metabolism (Gutierrez 1982, McGrath 1982). THRESHOLDS AT WHICH EFFECTS OCCUR Normal metabolic processes produce CO, converting 0.3-0.7 percent of the blood's hemoglobin to COHb. Laboratory studies have shown that physiological effects on the cardiovascular and central nervous systems can occur at COHb levels of 2.5-4.0 percent. There is no evidence of a threshold effect,even at these low COHb levels(Goldsmith 1986). Some studies claim to have detected cardiovascular effects at COHb levels at 2 percent. Reduced vigilance and impaired performance of complex tasks have been reported for COHb levels of 5 percent (Gutierrez 1982, U.S. Environmental Protection Agency 1983). COHb levels of 5-10 percent usually produce chest pain in persons with angina (Gutierrez 1982). Persons with coronary vascular disease show significant metabolic chan- ges in the heart muscle when COHb levels exceed 6 percent (Goldsmith and Friberg 1977). Several studies report a reduction in the time until the onset of chest pain in exercising angina patients at 3-5 percent COHb (Coffin and Stokinger 1977, California Air Resources Board 1982, U.S.. Environmental Protection Agency 1983). Aggravation of leg pain in persons suffering from peripheral vascular disease has been reported at COHb levels below 3 percent (U.S. Environmental Protection Agency 1979). Gutierrez (1982) summarizes the increasingly serious medical problems that occur as COHb levels climb above 10 percent. COHb levels of 10-20 percent typically produce headaches, disturbances in vision, and a decrease in manual dexterity. COHb levels of 20-40 percent produce nausea, vomiting, and drowsiness. Coma and convulsions typically occur at COHb levels of 40-60 percent (with brain damage also occurring in some cases). Death usually occurs at COHb levels above 60 percent. The relationship between CO concentrations in the air and COHb levels in the blood is complex and involves time lags of several hours. Blood volume, hemoglobin content of the blood, breathing rate, and the rate of metabolic CO production all affect the COHb level reached after exposure to elevated CO levels in the air. The time lag between CO exposure and maximum COHb levels in the blood occurs in part because normal breathing exchanges only about 10 percent of the air in the lungs with each breath (Menzel and Amdur 1986; Schlesinger 1988). A significant volume of air (about 20-25 percent of total lung capacity) remains unaffected even with maximum inhala- tion and exhalation. Thus, there are significant time lags for diffusion of gases between the inhaled air and the residual air in the lungs. Additional time lags occur due to the rate at which CO diffuses into and out of the blood stream. The U.S. Environmental Protection Agency (1982) has estimated that an 8-hour exposure to fluctuating CO levels that average 9 ppm (the federal 8-hour standard) will result in COHb levels of 1.3-1.8 percent for people with normal physiological functions, and in COHb levels of 1.9-2.4 percent for people with sensitive physiological conditions (such as low blood volume, low hemoglobin levels, and high metabolic CO production). An 8- hour exposure to fluctuating CO levels averaging 15 ppm would result in COHb levels of 2.1-2.8 percent in people with normal physiological functions, and in COHb levels of 2.9-3.9 percent in people with sensitive physiological conditions. Ferris (1978)presents COHb estimates for exposures to constant CO concentrations. COHb levels at the end of 8-hour exposures are estimated to be 2.8 percent for a 20 ppm CO exposure, 4.1 percent for a 30 ppm CO exposure, 7.5 percent for a 50 ppm exposure, and 11.3 percent for 100 ppm exposure. Even higher COHb levels would occur later,when equilibrium conditions are reached: 3.3 percent COHb for the 20 ppm exposure, 5.0 percent COHb for the 30 ppm exposure, 8.4 percent COHb for the 50 ppm exposure, and 14.0 percent COHb for the 100 ppm exposure. SENSITIVE COMPONENTS OF THE POPULATION Persons with peripheral or coronary vascular disease are considered to be at greatest risk from increased COHb. Between 3.5 and 4 percent of the U.S. population suffer from cardiovascular disease or peripheral vascular disease (U.S. Environmental Protection Agency 1982). More than 2 percent of the U.S. population suffers from stable angina (U.S. EPA 1979). E-2 Other groups considered to be at special risk from CO exposure include: persons with respiratory diseases such as chronic bronchitis, pneumonia, or emphysema; persons suffering from anemia; persons with reduced circulatory and respiratory system functions associated with aging; and fetuses and young infants. ANALYSIS PROCEDURES The results of the air quality analyses summarized in Chapter 3 focus on potential CO concentrations in the immediate vicinity of the First City Developments' Renton, Washington Tract B site. The analysis was structured to evaluate conditions of limited pollutant dispersion (cold temperatures, low wind speeds, and moderate ground level temperature inversions). Such weather conditions typically occur several times each winter, being most easily recognized when fog lasts throughout the day. Modeling analyses were performed using a series of parking garage models developed by Jones & Stokes Associates. A parking garage air quality analysis shares the same general approach used by most other air quality impact assessments. First, a source activity pattern is estimated. This activity pattern is then used to estimate facility emissions. Finally, dispersion modeling procedures are used to estimate incremental impacts on ambient air quality. Parking garage analyses differ from typical stationary or mobile source analyses in the procedures used to evaluate source activity and facility emissions. The dispersion modeling step combines simple box model analyses with standard line source modeling, procedures. The overall analysis process is illustrated in Figure B-1. PROJECT DESCRIPTION Two parking garage alternatives are under examination for the proposed Tract B site located north of the Oakesdale Avenue S.W. and S.W. Seventh Street intersection in Ren- ton, Washington. The proposed parking garage alternatives include a three-level parking garage (alternative B1) and a four-level parking garage (alternative B2). Under Alterna- tive B1, three office buildings would be built totalling 286,300 square feet. Under Alternative B2, one office building would be built totalling 285,000 square feet. Either garage would be completely separate from the surrounding office building(s). Current plans anticipate that construction of either garage would be completed by 1993. At the time of this analysis, the design plans for the garages were incomplete. Those plans indicate that both garages would have a maximum of 800 parking stalls. Alternative B1 would distribute these 800 spaces among three parking garage levels and would provide 496 surface parking stalls. Alternative B2 would distribute 800 spaces in a 4-story parking garage and would provide an additional 551 surface spaces. Specific floor plans for the parking facility, including ramps and entrance and exit lanes, were not available at the time of this analysis. In addition, information is currently unavailable regarding how much of each garage level would be open to natural ventilation, E-3 a key element in the air quality analysis. The initial assumption is that, for each garage, 40 percent of the lower levels would be open. RESULTS OF AIR QUALITY ANALYSES Hourly Trip Patterns ly Parking Duration Total Trips Total trip generation for each associated office project was estimated using standard trip generation rates for general office uses (Institute of Transportation Engineers 1987). Total trip generation is primarily a function of total building square footage. The resulting estimates are as follows: Alternative B1: 3,019 daily trips, 495 trips in the morning peak hour, and 471 trips in the afternoon peak hour. Alternative B2: 3,009 daily trips, 493 trips in the morning peak hour, and 469 trips in the afternoon peak hour. Trips By Parking Duration Category Vehicle emission rates depend on numerous factors. A major influence is the "operating mode" of the vehicle, which depends on how long the engine has been running, how long the engine was off before being started, and whether the vehicle is equipped with a catalytic converter. To properly estimate vehicle emission rates,vehicle trips to and from the proposed parking garage must be classified into three parking duration categories. Short term parking involves a parking duration of less than 1 hour; intermediate term parking involves durations of 1-4 hours; and long term parking involves durations of 4 hours or more. Vehicles with a catalytic converter revert to a "cold start" mode after a parking duration of 1 hour or more,while vehicles without a catalytic converter revert to a cold start mode after parking durations of 4 hours or more. The daily and peak hour trip estimates noted above were used as a guide in developing hourly vehicle arrival and departure patterns for each of the three parking duration categories. Use of the parking garage and associated surface parking was modeled by developing short-term, intermediate-term, and long-term parking activity patterns based on assumed arrival times (in 15-minute intervals) and variable parking durations. Activity associated with short-term parking was simulated by a mix of 30 and 45 minute parking durations. Intermediate-term parking activity was modeled with parking durations of 2 and 2.5 hours. Long-term parking activity estimates used parking durations of 8 and 9 hours. The trip simulation model uses a library of previously-defined parking activity patterns,with activity indicated as vehicle movements per 100 parking spaces. Parking activ- ity for a specific project is simulated by allocating parking spaces to an appropriate E-4 combination of individual parking patterns. Pattern selection and parking space allocations can be varied until the resulting total trip pattern approximates independent estimates of daily and/or peak hour trip generation. The allocation of spaces to different parking durations represents a convenient analysis procedure, not a parking management assumption. No restriction on the use of individual parking stalls in the garage is implied. Table B-1 shows the nine parking activity patterns used to simulate use of garage alternative B1 plus surface parking. Note that data in Table B-1 are phrased as vehicle movements per 100 parking spaces. Table B-2 summarizes the resulting trip pattern in terms of actual vehicle trips. The simulated trip pattern matches the peak hour and daily trip generation estimates derived from the latest Trip Generation manual (Institute of Transportation Engineers 1987). Table B-3 shows the trip patterns for only the 800 spaces associated with garage alternative B1. To get from Table B-1 to B-3, all short and medium- term surface parking was deleted and the number of long-term parking spaces in table B-1 were reduced from 1178 to 800 (in Table B-3) based on the ratio of long-term parking pattern percentages found in Table B-3. Table B-4 summarizes the resulting trip pattern in terms of actual vehicle trips for the alternative B1 garage. Tables B-5 through B-8 repeat the parking activity pattern analysis for alternative B2. Table B-5 shows the nine parking activity patterns for the alternative B2 garage plus surface parking. Table B-6 summarizes the resulting trip patterns. Table B-7 shows the parking activity patterns for the B2 garage only and Table B-8 summarizes the B2 garage only trip patterns. Vehicle Emission Rate Estimates Vehicle emission rates used in the air quality impacts analysis were derived from the Environmental Protection Agency's MOBILE 4 program. Emission rates were estimated separately for entering and exiting vehicles for the long-term parking duration category. Emission rate estimates were developed for 1993, and assumed a 40 degree Fahrenheit air temperature. Two programs were used to develop input information needed by MOBILE 4. A program called FLEETMIX was used to estimate the relative composition of vehicles that would use the garages in each year from 1985 through 2020, along with the fuel types and catalyst percentages for each vehicle class. Table B-9 shows the vehicle fleet mixes computed by FLEETMIX. Table B-10 shows the results of the TRIPMODE program. TRIPMODE was used to create operating mode estimates for different trip types. For the parking garage alternatives, only long-term entering and exiting trip information is used as MOBILE 4 inputs. Short and intermediate-term trips are assumed to use only surface parking, rather than the parking garages. Using the information from FLEETMIX and TRIPMODE, several MOBILE 4 runs were made. All runs were made for the 1993 calendar year, the expected completion date for the garages. Separate runs were made for entering and exiting modes with and without E-5 inspection and maintenance(I&M)programs(Tables B-11 and B-12). The Puget Sound Air Pollution Control Association (PSAPCA) has an I&M program in effect that includes Renton. However,the I&M program does not extend south of Renton and thus, commuters to these office buildings from points south, such as Kent and Auburn,would not be subject to the I&M program (Raymond,pers. comm.). To correct for this,the MOBILE 4 program was run with and without the I&M program and the resulting emission rates from these two runs were averaged. The average I&M/non-I&M emission rate was used in the parking facility emissions model. Both runs assumed vehicles averaged 7 mph inside of the parking garage. Tables B-13 (with I&M) and B-14 (without I&M) were run for vehicles with an average speed of 5 mph. These runs were made because 5 mph cold start emission rates are needed to estimate total emission rates. The cold start emission rates from these two MOBILE 4 runs were averaged to account for the location of this project in an area fre- quented by a mix of I&M/non I&M vehicles. Parking Facility Emissions Analysis Features of the Parking Facility Emissions Model A parking facility emissions model developed by Jones & Stokes Associates was used to estimate total emission within each parking garage alternative based on hourly vehicle activity patterns and the available design characteristics. The parking facility emissions model was run for hourly parking garage activity patterns during the 10 a.m. to 6 p.m. period. Both garages are assumed to be used only for long-term parking, due to the large number of surface spaces available for short and intermediate-term parking Emissions From Traveling Vehicles. The equations used in the MOBILE 4 emissions model include speed-dependent patterns of vehicle idling, acceleration, cruising, and deceleration (Smith and Aldrich 1977; Darlington, pers. comm.). The parking facility emissions model performs separate evaluations of the traveling and idling components of the overall vehicle activity pattern. The model includes param- eters to account for extra travel while searching for an empty parking space or for an exit. Vehicle travel is estimated as a function of the gross square footage of the facility and the number of levels from the entrance to the top of the facility. Idling Emissions. The parking facility emissions model evaluates the amount of idling accounted for in the MOBILE 4 emission rates and then makes appropriate adjustments for insufficient or excessive idling. The entering vehicle idling time threshold reflects delays at the garage entrance, internal travel distances, and movement conflicts. The exiting vehicle idling time threshold reflects engine warm-up time, internal travel distances, movement conflicts, exit queues, and delays at the garage exit. Because average travel distances are greater for entering vehicles than for exiting vehicles, the use of standard vehicle emission rates will imply more idling time for entering vehicles than for exiting vehicles. This is the opposite of the real situation. To adjust for E-6 this, the entering vehicle idling time threshold is a maximum limit; the exiting vehicle idling time threshold is a minimum required amount. Entering and exiting vehicle idle time adjustment values (seconds per vehicle) are then determined from comparison with the total idling time thresholds. The entering vehicle idle time adjustment (zero or a negative value) represents any excessive idling time inherent in the standard vehicle emission rates. The exiting vehicle idle time adjustment (zero or a positive value) represents any required idling time not accounted for in the standard vehicle emission rates. Cold Start Idle Rates. Complications arise when establishing idle emission rates that accurately reflect vehicle operating mode mixes. Federal vehicle emission testing procedures collect integrated emission samples that include true cold start,hot start, and hot stabilized mode idling emissions. Data from these testing procedures are used to develop computer programs that estimate on-road vehicle emission rates. The hot stabilized idle emission rate is equivalent to the 100 percent hot stabilized running emission rate for a speed between 3 and 7 mph (depending on calendar year and mix of vehicle types). An estimated cold start idle emission rate is derived from the 5-mph 100 percent cold start running emission rate (by converting from a grams-per-mile to a grams-per-minute basis). For simplicity, the hot start idle rate is treated as equal to the hot stabilized idle rate. Weighted cold-hot idle emission rate values are then computed for entering and exiting vehicles. The appropriate weighted cold-hot idle rates are used to calculate the idle emission adjustments. Project-Specific Considerations Parking Emissions Model Results. Parking facility emissions model results for alternative B1 are presented in Table B-15. Hourly CO emissions during the modeled 8- hour period ranged from 0.0 to 88.7 pounds, and averaged 28.7 pounds. Cumulative vehicle travel during this period was 151 miles (26 miles for entering vehicles and 124 miles for exiting vehicles). The idle adjustment procedure produced small reductions in MOBILE 4 emission rates for entering vehicles while producing major increases in emission rates for exiting vehicles. Entering vehicle emission rates were decreased by an average of 25 percent; exiting vehicle emission rates were increased by 334 percent. Parking facility emissions model results for alternative B2 are presented in Table B-16. Hourly CO emissions during the modeled 8-hour period ranged from 0.0 to 102.3 pounds, and averaged 30.4 pounds. Cumulative vehicle travel during this period was 170 miles (30 miles for entering vehicles and 141 miles for exiting vehicles.) The idle adjust procedure produced small reductions in MOBILE 4 emission rates for entering vehicles while producing major increases in emission rates for exiting vehicles. Entering vehicle emission rates were decreased by an average of 24 percent; exiting vehicle emission rates were increased by 305 percent. Overall, the idle adjustment procedure E-7 increased cumulative vehicle emissions by 257 percent compared to the basic MOBILE 4 emission rates. Internal Garage CO Levels CO levels inside each level of the garage are primarily a function of vehicle emissions and the extent of wall area open to natural ventilation. For this analysis, 40 percent of the wall opening on each lower level is assumed to be open to natural ventilation. The top level of each garage alternative is assumed to be completely open. CO levels inside the garage were estimated using a standard "box model" approach: average emissions on a level divided by the gross volume of the level, with this pollutant concentration divided by a ventilation factor (air exchanges per hour). Assumed ceiling heights were 12 feet on the ground level and 10 feet for the other levels. The natural ventilation factor was calculated by adjusting an assumed outside wind speed (1 meter per second, or 2.2 mph) for the extent of open area in the walls of the garage. Overall parking emissions were distributed among garage levels based on the distribution of entering and exiting vehicle travel. Box model evaluations of peak hour emissions for alternative B1 are summarized in Table B-17. Peak hour CO levels are estimated at 31-46 ppm in the lower two floors of the garage. Box model evaluations of 8-hour average emissions for alternative Bi (Table B-18) produced estimates of CO levels inside the garage ranging from 8 to 13 ppm depending on garage level. For parking garage alternative B2, predicted CO concentrations ranged from 14 to 57 ppm for the peak-hour average (Table B-19) and from 4 to 17 ppm for the 8-hour average (Table B-20). CO Concentrations Inside and Outside Each Garage Alternative CO concentrations at locations outside the parking garage will reflect the additive effect of pollutant increments from each level of the garage plus a "background" contribu- tion from local street traffic and other sources. Relative concentration factors for locations outside the garage were taken from the CALINE3 dispersion modeling analyses previously performed for a parking garage with similar footprint dimensions (Jones & Stokes Associates 1987b). Modeled receptor locations were 5 feet above ground at distances of 10, 25, 75, 150, 300, 500, and 1,000 feet from the garage. The CO increments from the parking garage as noted above do not account for other sources of CO in the project area. The other major sources of CO would be vehicle traf- fic at the surface parking lots, and on adjacent streets and freeways. Recognizing this, a peak hour CO concentration of 6 ppm and an 8-hour CO concentration of 3 ppm are assumed as background levels. Incremental CO concentrations attributable to the proposed garage alternative B1 are summarized in Table B-21. Including background CO levels, maximum peak-hour CO levels inside garage alternative B1 would be 37-44 ppm inside the enclosed levels of the E-8 garage. Maximum 8-hour CO concentrations inside garage B1 would be 12-15 ppm. These concentrations meet OSHA requirements (35 ppm 8-hour average) but exceed the values of the federal and state ambient air quality standards. For the assumed garage activity pattern and facade design, potential CO increments from the parking garage exceed federal and state standards for both the 1-hour and 8-hour time periods even without including background contribution. Potential peak hour CO increments attributable to the garage would range from 67 ppm at 10 feet to 15 ppm at 1,000 feet from the garage. Potential 8-hour average CO increments attributable to the garage would vary from 20 ppm at 10 feet to 5 ppm at 1,000 feet from the garage. The federal and state 1-hour CO standard of 35 ppm would be exceeded out beyond 300 feet from the garage. The federal and state 8-hour standards of 9 ppm would be exceeded beyond 500 feet from the garage (including 3 ppm background). Incremental CO concentrations attributable to the proposed garage alternative B2 are summarized in Table B-22. Maximum peak-hour carbon monoxide levels inside garage alternative B2 would be 26-49 ppm inside the enclosed levels of the garage. Maximum 8- hour CO concentrations inside garage B2 would be 9-16 ppm(including 6 ppm background). These concentrations meet OSHA requirements, but exceed the numerical value of the federal and state ambient air quality standards. For the assumed garage activity pattern and facade design, potential CO increments from the parking garage exceed federal and state standards for both the 1-hour and 8-hour time periods. Potential peak hour CO increments attributable to the garage would vary from 87 ppm at 10 feet to 21 ppm at 1,000 feet from the garage. Potential 8-hour average CO increments attributable to the garage would vary from 26 ppm at 10 feet to 6 ppm at 1,000 feet from the garage. The federal and state 1-hour standard of 35 ppm would be ex- ceeded up to 1,000 feet from the garage. The federal and state 8-hour standards of 9 ppm would be exceeded beyond 1,000 feet from the garage (with 3 ppm background included). MITIGATION ALTERNATIVES Some simple mitigation measures easily adopted by the project applicant can be used to reduce or eliminate the potential CO problems associated with either parking garage alternative. These mitigation measures are discussed below. Alternative B1 Additional Exit Lane The simplest approach to relieving the CO problems associated with alternative B1 is to add an additional exit lane. With two exit lanes, CO emissions during times of peak exit demand are greatly reduced as cars have a significantly shorter wait before exiting. Parking facility emissions model results for alternative B1 with two exit lanes are presented in Table B-23. Hourly CO emissions during the modeled 8-hour period ranged E-9 from 0.0 to 24.8 pounds, and averaged 8.1 pounds. Cumulative vehicle travel during this period was 167 miles (26 miles for entering vehicles and 141 miles for exiting vehicles). Internal CO levels in garage alternative B1 equal 7.3-10.8 ppm (13.3-16.8 ppm with background) for the one-hour average (Table B-24) and 1.5-4.3 ppm (4.5-7.3 ppm with background) for the eight-hour average (Table B-25). The maximum outside 1-hour concentrations range from 23.4 ppm at 10 feet to 10.0 ppm at 1,000 feet with background CO included (Table B-26). Similarly, maximum 8-hour concentrations range from 8.2 ppm at 10 feet to 4.2 at 1,000 feet. All of these maxima are less than the existing Washington state and federal CO ambient standards. Therefore, alternative B1 can easily meet both the 1-hour and 8-hour ambient CO standards by installing two exit lanes and by ensuring that at least 40 percent of the garage lower levels are open. Alternative B2 Additional Exit Lane For alternative B2, adding an extra exit lane is considered the simplest mitigation measure for reducing total CO emissions. Parking facility emissions model results for alternative B2 with two exit lanes are presented in Table B-27. Hourly CO emissions during the modeled 8-hour period ranged from 0.0 to 25.3 pounds, and averaged 8.9 pounds. Cumulative vehicle travel during this period was 188 miles (29 miles for entering vehicles and 159 miles for exiting vehicles). Internal CO levels for garage alternative B2 with two exit lanes equals 3.3-14.2 ppm (9.3-20.2 ppm with background) for the one-hour average (Table B-28) and 1.2-5.0 ppm (4.2-8.0 ppm with background) for the eight-hour average (Table B-29). The maximum outside 1-hour concentrations range from 27.8 ppm at 10 feet to 11.2 ppm at 1,000 feet with background CO included (Table B-30). Similarly, maximum 8-hour concentrations range from 10.5 ppm at 10 feet to 4.8 ppm at 1,000 feet (with background). The above analysis shows that by adding two exit lanes,peak hour concentrations are reduced to below the 35 ppm ambient standard. However, the predicted 8-hour average concentrations exceed the 9 ppm ambient standard once the 3 ppm background is included. Workers in the adjacent 7-story office building would be exposed to CO levels exceeding the 8-hour ambient standard. Increase Facade Openings In the next step, the analysis is repeated by assuming that each level of the B2 parking garage is 55 percent open, rather than the 40 percent that has been assumed heretofore. Rerunning the box models for alternative B2 with 55 percent facade openings results in internal peak hour CO levels ranging from 2.4-10.3 ppm (8.4-16.3 ppm with background) E-10 (Table B-31) and 8-hour levels ranging from 0.9-3.6 ppm (3.9-6.6 ppm with background) (Table B-32). Dispersion modeling results (Table B-33) show that the maximum 1-hour concentrations range from 21.7 ppm at 10 feet to 9.8 ppm at 1,000 feet with background CO included. Maximum 8-hour concentrations range from 8.5 ppm at 10 feet to 4.3 ppm at 1,000 feet. At 25 feet, the distance of the adjacent 7-story office building, maximum predicted CO concentrations equal 8.3 ppm, less than the 8-hour ambient standard of 9.0 ppm. Based on these modeling results, it appears that if parking garage alternative B2 is selected, it should, at a minimum, have two exit lanes and a 55 percent of the lower levels open. E-11 References Akland, G.A.,T.D.Hartwell,T.R.Johnson, and R. W.Whitmore. 1985. Measuring human exposure to carbon monoxide in Washington, D.C. and Denver, Colorado during the winter of 1982-1983. Environmental Science and Technology 19(10):911-916. American Conference of Governmental and Industrial Hygienists. 1982. Industrial ventilation: a manual of recommended practice. 17th edition. Lansing, MI Barratt, R. S. 1985. Air pollution problems in car parks. Environmental Pollution Series (Series B) 9(3): 179-192. Boldon, C. M. 1985. On ventilation for parking facilities. 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E-12 - Institute of Transportation Engineers. 1987.Trip generation.4th edition. Washington, DC. Jones & Stokes Associates, Inc. 1987. Draft environmental impact report for the East-End parking garage. Prepared for: City of Sacramento Department of Public Works, Parking Division. Sacramento, CA. McGrath, J. J. 1982. Physiological effects of carbon monoxide. Pp. 147-181 in J.J. McGrath and C.D. Barnes (eds.), Air pollution physiological effects. Academic Press. New York, NY. Menzel, D. B. and M. O. Amdur. 1986. Chapter 12: Toxic responses of the respiratory system.Pp 330-358 in C. C.Klaassen, M.O.Amdur, and J.Doull, (eds.), Casarett and Doull's toxicology: the basic science of poisons. 3rd edition. Macmillan Publishing Company. New York, NY. Ott, W. R. 1985. Total human exposure. Environmental Science & Technology 19(10):880-886. Schlesinger, R. B. 1988. Biological disposition of airborne particles: basic principles and application to vehicular emissions. Pp. 239-298.in A. Y. Watson, R. R. Bates, and D. Kennedy (eds.), Air pollution, the automobile, and public health. National Academy Press. Washington, DC. Sculley, R.D. 1988. Modeling parking garage air quality impacts. Unpublished manuscript. Jones & Stokes Associates, Inc. Sacramento, CA. Smith, M. and T.Aldrich. 1977. Development of revised light-duty-vehicle emission-average - speed relationships. (EPA-460/3-77-011.) U.S. Environmental Protection Agency, Office of Mobile Source Air Pollution Control. Ann Arbor, MI. U.S. Environmental Protection Agency. 1979. Air quality criteria for carbon monoxide. (EPA-600/8-79-022). Washington, DC. . 1980. Significant harm levels for carbon monoxide. Draft. . 1982. Sensitivity analysis on Coburn model predictions of carboxyhemoglobin levels associated with alternative carbon monoxide standards.Draft staff paper.Office of air quality planning and standards. Research Triangle Park, NC. . 1983. Revised evaluation of health effects associated with carbon monoxide exposure: an addendum to the 1979 air quality criteria document for carbon monoxide. External review draft. (EPA-600/8-83-033A.) Office of Health and Environmental Assessment. Washington, DC. Wright, G. R., S. Jewczyk, J. Onrot, P. Tomlinson, and R. J. Shepard. 1975. Carbon monoxide in the urban atmosphere: hazards to the pedestrian and.street-worker. Archives of Environmental Health 30:123-129. E-13 Personal Communications Raymond, John. Environmental Specialist. Washington Department of Ecology. Olympia, Washington. January 16, 1990 - telephone conversation. E-14 ELEMENTS OF A PARKING GARAGE AIR QUALITY ANALYSIS GARAGE TRIP LAYOUT GENERATION PATTERNS r INTERNAL VEHICLE VEHICLE EMISSION TRAVEL RATES r EMISSIONS WITHIN GARAGE V INTERNAL POLLUTANT CONCENTRATIONS r POLLUTANT CONCENTRATIONS OUTSIDE GARAGE MITIGATION ANALYSES Source: Jones & Stokes Associates, Inc. awx 40 4. -- •— -- -- C. - 4.40 -- •• 40 4D b -- __ -- •4b -an « _ •. . -- - •_ •• _ •• 01 D. VPpro tom on - ...7 «- «.. �� -- -- -- -- 7 CZ MI •— 7C M1 - R- 17 -- -- •— IND— 00b OP OD •— OP• ON— :— 11 04 We ton Es r dis U —a it-ir -aW «a�«Et«za ^s� ' Q wEa-E� =a C C C C C C - �- 5� H de OD 44.1 " DI: OP 40 OD la a 41 De 10 de • • p11 ~ r re a 1 Mb an 2 0. a _OD 44 F IF ggOD 44 eft MP 44 ow AN 44 on 44 g� -- NM NI 40 — - — 440 pm am lon a ma ow -- ow ow -- — — — — 1 211 —— —— —— m.o. — — = cii -- 1 ' —— —— —— -— — — — 0° -- -- -- -- — — - - as IN a E. owag la 4 Al g g l ' E _ = ` ascgc smr 40 we E :a il � . wm MO. II 04 - - = LI �a 6 rah x� "1 _ 11 • m ifi G 44 r :I __ Cmr.si : si '" a ss � .. a a ie� a asi a a oa _ � s •r Ms a5 a s .aaii inasi ry _ • • s� s = = =� oda M PIP ' •° oz ... M 6E� e • —s a6. _a r oI. i - .s 7 = = _ • - - • r Um - 's -y z y MI y -P. i • OM om ! * ki xI s 's . a . . a . a . � . _ . s . >34a s _ sii _C _ M!I i. Mka MI VI • 10 .11 _ •MC Pa MI de ow _ _• Table 1-I. Surly hllele Inneeb Tit Stifle Iltetatln 11-pale tettl'T 0118 MICY IO?YO?Y1 ICCRIICT 1111111: 1AIIIIO I111I14 IIlL? I51IC1 Ant 11YII! COROIIT1?11I11C ICtITITT 1A1T111S It 1111 01 IIt(TOTAL IOTINUT0 n11110I 1011110t 1R101R1 OCCRYCT ICCI1YC1 CUR!. IORmi I- 1- 1- 1- I- S- A- 1- I- 1- II- 11- I- I- I- 1- I- S- 6- 1- 1- 1- II- 11- 11111 CIT160tt (111111 Itl I7AC1 IICTOI FACTO! OM 1111OTIOI l AI 2 II I II 4 II S Y I II 7 II 1 11 l II 11 II 11 U I I II 1 1I I?I 1 1I S 11 A 1l 1 tI 1 1I 1 11 11 II II 1I I TOTAL 1102T TI11 11YI10: IT WWII• 1 1.11 1.11 1.11 1.11 '1.1% 171111 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 III? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 for i101171 Mt 1111110: IT PIGS• 1 1.11 1.11 ISO 1.n 1.6% sun I I I I I I 1 I I 1 I 1 1 I I I I I 1 I I I 1 I I III? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I, nil 7Yllt6: Lt PICA• III 1.11 1.11 51.21 lll.lt 1.11 SITU 1 1 1 1 1 1 1 14S 116 III 1A 1 1 12S 1 1 1 1 1 1 1 1 1 1 111 Ulf 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 151 112 2IS IS1 1 1 1 1 1 111 C: 'e!:1 111IIIC 1ITTn1: TOTAL A11CI1• III 1.11 1.11 51.1% 111.1% 1.11 um 1 1 1 1 1 1 1 14S 116 In 21 1 1 l2S 1 1 1 1 1 1 1 1 1 1 111 III? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1S2 II? 111 111 1 1 1 1 1 111 TOTAL 1111CL1 I0/1QITI:W I 1 1 I 1 1 I 145 III III 26 1 1 125 1 1S1 Ili 711 111 I 1 1 1 1 1,611 lttlla SPICES 0[0R111: 1 I 1 1 1 1 1 11 111 55S Lp 615 615 111 III 121 SSI 211 11 I 1 1 1 1 11i110 CYACI OCCYPIICT FACTO,: It It It It It It II 1% III Al% 11% 141 Al% 11% 111% 11% 65% 11% It IL 11 It It It CUM OCCOIYC!AT 111 01 100l: It It It It 11 It 11 11% SIt III 141 141 Il% III% 111% Ill S1% Ill It 11 1t 11 I% It / f4 EE EE EE 1 ESA rr __ EEI AilP as es as es I 11 .. .. .. 0 e fi .. •o I o e A .. .. .. o o A 0 0 A 0 e A 0 e II u , ` I .. .. .. 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V r5 a gcccccccc A accc Y ii t. . • • • • • . • . • • . • . . . • . g�YII 5ccsrrccz 4 A.CAA =-c . table B-10. Trip Mode IstiRates for Renton Parking Garage Alternatives SRT1: Operating Node Nix Calculations: Short Term Exiting Trips Trip Catalyst Vehicle Modes loncatalyst Vehicle Nodes Type t Trips t Cold t Rot % Stable t Cold t Hot % Stable I-1 5.00% 13.13% 86.87% 0.00% 11.46% 11.54% 0.00% 1-1 0.00% 19.01% 10.961 0.00% 12.10% 87.90% 0.00% 1-0 15.00% 21.12% 71.88% 0.00% 13.40% 86.60% 0.00% 0-1 35.00% 23.81% 76.19% 0.00% 16.05% 83.95% 0.00% 0-0 45.00% 15.14% 64.86% 0.00% 4.32% 95.68% 0.00% II-EI 0.00% 1.60% 91.40% 0.00% 1.391 98.61% 0.00% EI-lI 0.00% 0.69% 99.31% 0.00% 0.60% 99.40% 0,00% THROUGH 0.00% 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% t1TD AVG* 11.97% 11.03% 0.00% 10.15% 89.85% 0.00% t VNT SUM 100.00% EMPAC STARTS: COLD = 17.82% ROT = 12.18% SET2: Operating Node Nix Calculations: Intermediate Term Exiting Trips Trip Catalyst Vehicle Modes loncatalyst Vehicle Modes Type t Trips % Cold I Rot t Stable t Cold t Rot % Stable 1-1 40.00% 100.001 0.00% 0.00% 11.46% 11.54% 0.00% H-S 0.00% 100.00% 0.00% 0.00% 12.10% 87.90% 0.00% 1-0 20.00% 100.001 0.00% 0.00% 13.40% 86.60% 0.00% 0-1 30.00% 100.00% 0.00% 0.00% 16.05% 83.95% 0,00% 0-0 10.00% 100,00% 0.00% 0.00% 4.32% 95.68% 0.00% II-EI 0.00% 100.00% 0.00% 0.00% 1.39% 98.61% 0.00% II-II 0.00% 100.00% 0.00% 0.00% 0.60% 99.401 0.00% THROUGH 0.00% 100.00% 0.00% 0.00% 0.00% 100.00% 0.00% 'lTD AVG* 100,00% 0.00% 0.00% 12.51% 87.49% 0.00% t TNT SUM 100.00% INFAC STARTS: COLD = 11.60% ROT = 11.40% SRT3: Operating Node Nix Calculations: Long Term Exiting Trips Trip Catalyst Vehicle Modes loncatalyst Vehicle Modes Type I Trips t Cold % Hot t Stable I Cold t Rot t Stable 1-1 70.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% H-S 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 1-0 5.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 0-1 20.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 0-0 5.00% 100.00% 0.00% 0.00% 100.001 0.00% 0.00% II-EI 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% El-II 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% TROUGH 0.001 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% *RD AVG' 91.00% 0.00% 0.00% 98.00% 0.00% 0.00% t VET SUM 100.00% IMPAC STARTS: COLD = 91.00% ROT = 0.00% Table B-10. (cont.) Trip Mode Estimates for Renton Parking Garage Alternatives SET1: Operating Node Nix Calculations: Short Teri Exiting Trips Trip Catalyst Vehicle Modes Moncatalyst Vehicle Nodes Type % Trips t Cold t Rot t Stable 1 Cold 1 Hot t Stable 1-1 5.00% 91.71% 8.29% 0.00% 80.04% 19.96% 0.00% R-S 0.00% 52.89% 47.11% 0,00% 33.61% 66.39% 0.00% 1-0 15.00% 68.36% 31.64% 0.00% 43.38% 56.62% 0.00% 0-1 35.00% 62.64% 37.36% 0.00% 42.24% 57.76% 0.00% 0-0 45.00% 28.90% 71.10% 0.00% 8.26% 91.74% 0.00% II-EI 0.00% 91.27% 8.73% 0.00% 79.12% 20.88% 0.00% HI-II 0.00% 91.15% 8.85% 0,00% 78.90% 21.10% 0,00% THROUGH 0.00% 91.71% 8.29% 0.00% 80.04% 19.96% 0.00% t1TD AVGt 49.77% 50.23% 0.00% 29.01% 70.99% 0.00% t VI? SUM 100.00% EMFAC STARTS: COLD = 47.06% ROT = 52.94% SHT2: Operating Mode Mix Calculations: Intermediate Term Exiting Trips Trip Catalyst Vehicle Modes loncatalyst Vehicle Modes Type S Trips 1 Cold S Rot S Stable 1 Cold S Rot S Stable S-V 40.00% 100.00% 0.00% 0.00% 80.04% 19.96% 0.00% R-S 0.00% 100.00% 0.00% 0.00% 33.61% 66.39% 0.00% 5-0 20.00% 100.00% 0.00% 0.00% 43.38% 56.62% 0.00% 0-V 30.00% 100.00% 0.00% 0.00% 42.24% 57.76% 0.00% 0-0 20.00% 100.00% 0.00% 0.00% 8.26% 91.74% 0.00% II-EI 0.00% 100.00% 0.00% 0.00% 79.12% 20.88% 0.00% II-II 0.00% 100.00% 0.00% 0.00% 78.90% 21.10% 0.00% THROUGH 0.00% 100.00% 0.00% 0.00% 80.04% 19.96% 0.00% t1TD AVG* 110.00% 0.00% 0.00% 55.01% 54.99% 0.00% 1 VET SUN 110.00% EMFAC STARTS: COLD = 102.84% ROT = 7.16% SET3: Operating Mode Nix Calculations: Long Term Exiting Trips Trip Catalyst Vehicle Nodes loncatalyst Vehicle Nodes Type t Trips 1 Cold 1 Rot 1 Stable t Cold S Rot S Stable 1-1 70.00% 100.00% 0.00% 0,00% 100.00% 0.00% 0.00% 1-S 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 1-0 5.00% 100.00% 0.00% 0,00% 100.00% 0.00% 0.00% 0-1 20.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 0-0 5.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 11-EI 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% RI-II 0.00% 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% THROUGH 0.00% 100.00% 0.10% 0.00% 100.00% 0.00% 0.00% MD AVGt 100.00% 0.00% 0.00% 100.00% 0.00% 0.00% 1 VMT SUM 100.00% EMFAC STARTS: COLD = 100.00% ROT = 0.00% Table B-11. Renton First City Parking Garage with IiM I/N PROGRAM SELECTED: START IEAR (JANUARI 1): 1982 PRE-1981 NYR STRINGENCY RATE: 20% FIRST MODEL TEAR COVERED: 1982 LAST MODEL IEAR COVERED: 1994 WAIVER RATE (PRE-1981): 20.% WAIVER RATE (1981 AND NEVER): 10.% COMPLIANCE RATE: 70.% INSPECTION TYPE: COMPUTERIZED DECENTRALISED INSPECTION FREQUENCY ANNUAL VEHICLE TYPES COVERED: LDGV - YES LDGT1 - YES LDGT2 - NO BOGY - NO 1981 i LATER MYR TEST TYPE: IDLE REGTON LAPs ASTN CLASS: A MINIMUM TEMP: 30. (F) MAXIMUM TEMP: 50. (F) BASE RVP: 7.0 IN-USE RVP: 7.0 II-USE START YR: 1989 TOTAL BC EMISSION FACTORS INCLUDE EVAPORATIVE RC EMISSION FACTORS. CAL. IEAR: 1993 I/M PROGRAM: IES AMBIENT TEMP: 40.0 (F) REGION: LOW ANTI-TAM, PROGRAM: NO OPERATING MODE: 11.9 / 5.8 / 15.3 ALTITUDE: 500. FT. VEB. TIPE: LDGV LDGT1 LDGT2 LDGT HDGV LDDV LDDT BODY MC ALL VEB TEE. SPEEDS: 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 VMT MIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) !IHAUST CO: 55.00 64.36 75.10 67.51 .00 .00 .00 .00 74.17 56.923 TOT STABILIZED IDLE EMISSION FACTORS (GM/RE) IDLE CO: 194.50 237.21 254.16 242.18 .00 .00 .00 .00 160.59 200.866 CAL. TEAR: 1993 I/M PROGRAM: IES AMBIENT TEMP: 10.0 (F) REGION: LOW ANTI-TAM. PROGRAM: NO OPERATING MODE:100.0 / ,0 /100.0 ALTITUDE: 500. FT. TER. TIPE: LDGV LDGT1 LDGT2 LDGT BDGV LDDV LOOT HDDV NC ALL VIE TEB. SPEEDS: 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 VET MIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS IGM/NILEI 'IHAUST CO: 185.82 198.18 212.85 202.47 .00 .00 .00 .00 223.97 188.494 NOT STABILIZED IDLE EMISSION FACTORS (GM/BR) IDLE CO: 194.50 237.21 254.16 242.18 .00 .00 .00 .00 160.59 200.866 Table B-12. Renton First City Parking Garage Analysis RENTON LAPs ASTM CLASS: A MINIMUM TEMP: 30. (F) MANIMUM TEMP: 50. (F) BASE RVP: 7.0 IN-USE RVP: 7.0 IN-USE START YR: 1989 , TOTAL BC EMISSION FACTORS INCLUDE EVAPORATIVE BC EMISSION FACTORS. CAL. TEAR: 1993 I/M PROGRAM: NO AMBIENT TEMP: 40.0 (F) REGION: LOY ANTI-TAM. PROGRAM: 10 OPERATING MODE: 11.9 / 5.8 / 15.3 ALTITUDE: 500. FT. VER. TIPE: LDGV LDGT1 LDGT2 LDGT BDGV LDDV LDDT HDDV MC ALL VER TER. SPEEDS: 7.0 7.0 7.0 7.0 7.0 7.0 1.0 7.0 VET MIX: .151 .099 .041 .000 .000 ;00,0 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EXHAUST CO: 57.66 70.48 15.10 71.83 .00 .00 .00 .00 74.17 59.795 NOT STABILIZED IDLE EMISSION FACTORS (GM/RR) IDLE CO: 204.03 262.74 254.16 260.22 .00 .00 .00 .00 160.59 211.510 CAL. IEAR: 1993 I/M PROGRAM: NO AMBIENT TEMP: 40.0 (F) REGION: LOY ANTI-TAM. PROGRAM: 10 OPERATING MODE:100.0 / .0 /100.0 ALTITUDE: 500. FT. VIA. TIPE: LOGY LDGT1 LDGT2 LOG? BDGV LDDV LDD! BODY MC ALL YEA YES. SPEEDS: 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 INT MII: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EXHAUST CO: 190.12 207.87 212.85 209.33 .00 .00 .00 .00 223.97 193.111 NOT STABILIZED IDLE EMISSION FACTORS (GM/RR) IDLE CO: 204.03 262.71 254.16 260.22 .00 .00 .00 .00 160.59 211.510 Table B-13. Renton First City Parking Garage vith IiM (5 Kph) I/M PROGRAM SELECTED: START TEAR (JANUARI 1): 1912 PRE-1981 MYR STRINGENCY RATE: 201 FIRST MODEL TEAR COVERED: 1982 LAST MODEL TEAR COVERED: 1994 WAIVER RATE (PRE-1981): 20.1 WAIVER RATE (1981 AID NEVER): 10,1 COMPLIANCE RATE: 70.1 INSPECTION TYPE: COMPUTERIZED DECENTRALIZED INSPECTION FREQUENCY ANNUAL VEHICLE TYPES COVERED: LDGV - IES LDGT1 - TES LDGT2 - NO EDGY - MO 1981 & LATER KIR TEST TYPE: IDLE KEETON LAPS ASTM CLASS: A MINIMUM TEMP: 30. (F) MAXIMUM TEMP: 50. (F) BASE RVP: 7.0 II-USE RVP: 7,0 IN-USE START IR,: 1989 TOTAL BC EMISSION FACTORS INCLUDE EVAPORATIVE RC EMISSION FACTORS. CAL. YEAR: 1993 I/M PROGRAM: IES AMBIENT TEMP: 40.0 (F) REGION: LOV ANTI-TAM. PROGRAM: NO OPERATING RODE: 11.9 / 5.8 / 15.3 ALTITUDE: 500, FT. VEB. TIPE: LDGV LDGT1 LDGT2 LOGY BDGV LDDV LDDT EDDY KC ALL VBB VER. SPEEDS: 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 VET MIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EXHAUST CO: 74.98 86.94 101.87 91.31 .00 .00 .00 .00 104.50 77.533 NOT STABILIZED IDLE EMISSION FACTORS (GM/BR) IDLE CO: 194.50 237.21 254.16 242.18 .00 .00 .00 .00 160.59 200.866 CAL. IEAR: 1993 I/M PROGRAM: YES AMBIENT TEMP: 40.0 (F) REGION: LOW ANTI-TAM. PROGRAM: NO OPERATING MODE:100,0 / .0 /100.0 ALTITUDE: 500, FT. VIE, TIPB: LOGY LDGT1 LDGT2 LOOT EDGY LDDV LOOT . EDDY NC ALL FIB VER. SPEEDS: 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 TIT NIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EIHAUST CO: 252.22 268.05 289.26 274.26 .08 .00 .00 .00 315.55 255.874 I0T STABILIZED IDLE EMISSION FACTORS (GM/BR) IDLE CO: 194.50 237.21 254.16 242.18 .00 .00 .00 .00 160.59 200.866 Table B-14 Renton First City Parking Garage Analysis (no ILK, 5 mph) IENTON LAPS ASTM CLASS: A MINIMUM TEMP: 30. (F) MAXIMUM TEMP: 50. (F) BASE RVP: 7.0 IN-USE RVP: 7.0 IN-USE START YR: 1989 TOTAL RC EMISSION FACTORS INCLUDE EVAPORATIVE BC EMISSION FACTORS. CAL. IEAR: 1993 I/M PROGRAM: NO AMBIENT TEMP: 40,0 (F) REGION: LOV ANTI-TAM. PROGRAM: NO OPERATING MODE: 11.9 / 5.8 / 15.3 ALTITUDE: 500. FT. VER. TYPE: LDGV LDGT1 LDGT2 LDGT EDGY LDDV LDDT EDDY MC ILL VER VER. SPEEDS: 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 VMT MIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EXHAUST CO: 78.51 95.08 101.87 97.07 .00 .00 .00 .00 104.50 81.370 NOT STABILIZED IDLE EMISSION FACTORS (GM/BR) IDLE CO: 204.03 262.74 254.16 260.22 .00 .00 .00 .00 160.59 211.510 CIL. TEAR: 1993 I/M PROGRAM: NO AMBIENT TEMP: 40.0 (F) REGION: LOV ANTI-TAM. PROGRAM: NO OPERATING MODE:100.0 / .0 /100.0 ALTITUDE: 500. FT. VER. TYPE: LDGV LDGT1 LDGT2 LDGT EDGY LDDV LDDT ADDY NC ALL VER VER. SPEEDS: 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 VMT MIX: .851 .099 .041 .000 .000 .000 .000 .009 COMPOSITE EMISSION FACTORS (GM/MILE) EIHAUS! CO: 258.00 281.10 289.26 283.49 .00 .00 .00 .00 315.55 262.085 IOT STABILIZED IDLE EMISSION FACTORS (GM/RR) IDLE CO: 204.03 262.74 254.16 260.22 .00 .00 .00 .00 160.59 211.510 Table B-15. Parking Esissions Model Results for Garage Alternative B1 PARAMETERS SYMBOL HOUR 1 HOUR 2 HOUR 3 HOUR 4 HOUR 5 HOUR 6 HOUR 7 HOUR 8 WTD MEAN TOTALS INPUT DATA: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE 131 MAX NUMBER OF LEVELS FROM ENTRANCE L 3 3 3 3 3 3 3 3 3 SHORT TERM (ST) SPACES Ps - 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM (IT) SPACES Pi 0 0 0 0 0 0 0 0 0 LONG TERM (LT) SPACES P1 B00 800 B00 800 800 800 B00 800 800 GROSS SQUARE FEET PER SPACE B 378.0 390.0 390.0 390,0 390,0 390.0 390.0 390.0 388.5 NUMBER OF EXIT LANES Nx 1 1 1 1 1 1 1 1 1.0 ST ENTERING TRIPS per 100 ST SPACES Ysn 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ST EXITING TRIPS per 100 ST SPACES Ysx 0.0 ' 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 IT ENTERING TRIPS per 100 IT SPACES Yin 0.0 0.0 0.0 , 0.0 0,0 0.0 0,0 0.0 0,0 IT EXITING TRIPS per 100 IT SPACES Yix 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 LT ENTERING TRIPS per 100 LT SPACES Yln 0..0 0.0 15.7 0.0 0.0 0.0 0.0 0.0 2.0 LT EXITING TRIPS per 100 LT SPACES Ylx 0.0 0.0 0.0 0.0 18,9 24.0 38.2 18.9 12.5 INITIAL DIST COEFFIC., ENTERING Fn 0.210 0.210 0.210 0,210 0.210 0.210 0.210 0.210 0.210 - INITIAL DIST COEFFIC,, EXITING Fx 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 EXTRA TRAVEL X, ENTERING VEHICLES 'Un 25 20 20 20 20 0 0 0 20.0 EXTRA TRAVEL X, EXITING VEHICLES Ux 0 0 0 0 0 0 0 0 0.0 ENGINE WARM-UP TIME (seconds/veh) Jx 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 IDLING AT ENTRANCE (sec/veh) Zn 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 •IDLING AT EXIT POINT (sec/veh) ix 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 2 VEHICLES WITH CATALYST C B6.97 86.97 B6.97 86.97 86.97 86.97 . 86.97 86.97 86.9.7 X CAT COLD START, ST ENTERING PCCCsn 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA X CAT COLD START, IT ENTERING PCCCin 0.0 16.9 16.9 16.9 16.9 16.9 16,9 16.9 . NA 2 CAT COLD START, LT ENTERING PCCCin 15.3 15.2 15.2 15.2 15,2 15.2 15.2 15,2 15.2 X NONCAT COLD START, ST ENTERING PCCNsn 0.0 11.7 11.7 11.7 , 11.7 11.7 11.7 11.7 NA 1 X NONCAT COLD START, IT ENTERING PCCNin 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11.8 NA X NONCAT COLD START, LT ENTERING PCCN1n 11.9 11.4 11.4 11.4 11.4 11.4 11.4 11.4 11.4 AVERAGE VEHICLE SPEED, 1-20 mph S 7 7 7 7 7 7 7 7 7 HOT IDLE RATE (grass/sinute) Ih 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 100% COLD RATE 8 5 MPH (g./.ile) Ec 258.98 258.98 258.98 258.98 258.98 258.98 258,98 258.98 258.98 ST ENTERING RATE, (grans/pile) Esn 0.00 0.00 0.00 0.00 , 0.00 0.00 0.00 0.00 NA ST EXITING RATE, (grams/pile) Esx 0.00 0.00 0.00 ' 0.00 0.00 0.00 0.00 0.00 NA IT ENTERING RATE, (grass/mile) Ein 0.00 0.00 0.00 0.00 0.00 0.00 . 0.00 0.00 . NA IT EXITING RATE, (grass/rile) Eix 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA LT ENTERING RATE, (grans/mile) Eln 58.36 58.36 58.36 58.36 58.36 58.36 58.36 58.36 58.36 LT EXITING RATE, (grams/mile) Elx 190.80 190.80 190.80 190.80 190.80 190.80 190.80 190.80 190.80 MODEL OUTPUT: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE 81 TOTAL SPACES P 800 800 800 800 800 800 800 800 800 CROSS PARKING AREA (square feet) A 302,400 312,000 312,000 312,000 312,000 312,000 312,000 312,000 310,800 EXIT DEMAND, SHORT TERM Vdsx 0 0 0 0 0 0 0 0 0 0 EXIT DEMAND, INTERMEDIATE TERM Vdix 0 0 0 0 0 0 0 0 0 0 EXIT DEMAND, LONG TERM Vdlx 0 0 0 0 151 , 192 305 151 100 800 TOTAL EXIT DEMAND Vdjx 0 0 0 0 151 192 305 151 100 800 TOTAL EXIT CAPACITY Xc 185 185 185 185 185 185 185 185 185 MEAN EXIT QUEUE (vehicles/lane) Xq 0.0 0.0 0.0 0.0 0.B 3.7 67.6 110.9. 22.9 ST EXIT CARRY-OVER (vehicles) Vqs 0 0 0 0 0 0 0 0 0,0 I.T EXIT CARRY-OVER (vehicles) Vqi 0 0 0 0 0 0 0 0 0,0 LT EXIT CARRY-OVER (vehicles) Yql 0 0 0 0 0 7 128 94 28,6 TOTAL EXIT CARRY-OVER (vehicles) WI 0 0 0 0 0 7 12B 94 28.6 SHORT TERM ENTERING TRIPS Vsn 0 0 0 0 0 0 0 0 0 0 SHORT TERM EXITING TRIPS Vsx 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM ENTERING TRIPS Vin 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM EXITING TRIPS Vix 0 0 0 0 0 0 0 0 0 0 LONG TERM ENTERING TRIPS Vin 0 0 126 0 0 0 0 0 16 126 LONG TERM EXITING TRIPS Vlx 0 0 0 0 151 185 185 185 8B 706 TOTAL ENTERING TRIPS Vjn 0 0 126 0 0 0 0 0 16 126 • TOTAL EXITING TRIPS Vjx 0, 0 0 0 151 165 185 185 88 706 TOTAL TRIPS Vjz 0 0 126 0 151 185 185 185 104 832 FINAL DIST COEFFICIENT, ENTERING fin 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 FINAL DIST COEFFICIENT, EXITING 6x 1.630 1,630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 MEAN TRAVEL PATH (feet/vehicle) D NA NA 910 NA 910 910 910 910 NA ENTERING VEHICLE TRAVEL (ft/veh) On 1,140 1,113 1,113 1,113 1,113 930 930 930 1,113 EXITING VEHICLE TRAVEL (ft/veh) Dx 916 930 930 930 930 930 930 930 930 MAXIMUM ENTER IDLE TIME (sec/veh) Mn 12 12 13 12 12 12 12 12 13.4 MINIMUM EXIT IDLE TIME (sec/veh) Mx 29 29 29 29 44 90 1113 1805 797,3 MOBILE/EMFAC IDLE TIME FRACTION H 0.4067 0.4067 0,4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 IDLE TIME COEFFICIENT (sec/ft) R 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396. 0.0396 MOBILE/EMFAC ENTER IDLE SECONDS Tn 45 44 44 44 44 37 37 37 44.1 MOBILE/EMFAC EXIT IDLE SECONDS . Tx 36 37 37 37 37 37 ' 37 37 36.9 MEAN EXIT TIME (seconds/vehicle) Xt 0 0 0 0 98 144 1,166 1,858 851 Z CAT COLD START, ST EXITING PCCCsx 0.0 18.9 18.9 18.9 16.9 18,9. 18.9 18.9 NA _ Z CAT COLD START, IT EXITING PCCCix 100.0 100.0 100.0 100.0 100.0 100.0 100,0 100.0 NA Z CAT COLD START, LT EXITING PCCCsx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 Z NONCAT COLD START, ST EXITING PCCNsx 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA Z,NONCAT COLD START, IT EXITING PCCNix 0,0 11.8 11.8 11.8 11.B 11.B 11.8 11.B NA Z NONCAT COLD START, LT EXITING PCCN1x 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 _ Z COLD STARTS, ST ENTERING TRIPS Wsn . 0,0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA Z COLD STARTS, ST EXITING TRIPS Wsx 0.0. 18.0 18.0 18.0 18.0 18.0 18.0 18.0 ' NA Z COLD STARTS, IT ENTERING TRIPS Win 0.0 16.3 16.3 16.3 16.3 16.3 16.3 16.3 NA Z COLD STARTS, IT EXITING TRIPS Wix 87.0 88.5 88.5 88.5 88.5 88.5 88.5 88.5 NA Z COLD STARTS, LT ENTERING TRIPS Win 14.9 14.7 14.7 14,7 14..7 14.7 14.7 14.7 14.7 Z COLD STARTS, LT EXITING TRIPS Wix 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100Z COLD IDLE RATE (plain) Ic 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 COLD/HOT IDLE (plain), ST ENTER Isn 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (plain), ST EXIT Isx 3.440 6.702. 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (plain), IT ENTER Iin 3.440 6.390 6.390 6.390 6.390 6.390 6.390 6.390 NA COLD/HOT IDLE (galain), IT EXIT Iix 19.218 19.497 19.497 19.497 19.497 19.497 19.497 19.497 NA COLD/HOT IDLE (ga/ein), LT ENTER Iln 6.140 6.103 6.103 6.103 6.103 6.103 6.103 . 6.103 6.103 COLD/HOT IDLE (gplain), LT EXIT Ilx 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 IDLE ADJUSTMENT (gm/v), ST ENTER Ksn -1.90 -3.58 -3.43 -3.58 -3.58 -2.78 -2,78 -2.78 NA ; IDLE ADJUSTMENT (gm/v), ST EXIT Ksx 0.00 0.00 0.00 0.00 0.77 5.95 61.12 120.80 NA IDLE ADJUSTMENT (gm/v), IT ENTER Kin -1.90 -3.42 -3.27 -3.42 -3,42 -2,65 -2.65 -2.65 NA IDLE ADJUSTMENT (gm/v), IT EXIT Kix 0.00 0.00 0.00 0.00 2.24 17.31 169.48 209.16 NA IDLE ADJUSTMENT (gm/v), LT ENTER Kin -3.40 -3.26 -3.12 -3.26 -3.26 -2.53 -2.53 -2.53 -3.12 IDLE ADJUSTMENT (gmlv), LT EXIT KIx 0,00 0.00 0.00 0.00 2.48 19.16 183.88 223.56 112.30 ST ENTERIN6 EMISSIONS (grams) Qsn 0 0 0 0 0 0 0 0 0 0 ST EXITING EMISSIONS (grams) Qsx 0 0 0 0 0 0 0 0 0 0 IT ENTERING EMISSIONS (grams) Qin 0 0 0 0 0 0 0 0 0 0 IT EXITING EMISSIONS (grams) Oix 0 0 0 0 0 0 0 0 0 0. LT ENTERING EMISSIONS (grams) Q1n 0 0 1,153 0 0 0 0 0 144 1,153 LT EXITING EMISSIONS (grams) Qlx 0 0 0 0 5,456 9,764 40,23E 47,579 12,880 103,037 ST PARKING EMISSIONS (grams) Qsz 0 0 0 0 0 0 0 0 0 0 IT PARKING EMISSIONS (grams) Piz 0 0 0 0 0 0 0 0 0 0 LT PARKING EMISSIONS (grams) Q1z 0 0 1,153 0 5,456 9,764 40,238 47,579 13,024 104,190 ENTERING VEHICLE EMISSIONS (gm) Qjn 0 0 1,153 0 0 0 0 0 144 1,153 EXITING VEHICLE EMISSIONS (gm) Qjx 0 0 0 0, 5,456 9,764 40,238 47,579 12,880 103,037 TOTAL EMISSIONS (grams) Qjz 0 0 1,153 0 5,456 9,764 40,238 47,579 13,024 104,190 TOTAL EMISSIONS (pounds) Qjz 0.0 0.0 2.5 0.0 12.0 21.5 88.7 104.9 28.7 229.7 PERCENT EMISSIONS BY ST PARKERS 0.0% 0,0% . 0,0% 0.0% 0.0X 0,0% 0.0% 0.0% 0.0% PERCENT EMISSIONS BY IT PARKERS 0.0% 0,0% 0.0% 0.0% 0.0% 0,0% 0.0% 0.0% 0.0% PERCENT EMISSIONS BY LT PARKERS 0.0% 0.0X 100.0% 0.0% 100.0% 100.0X 100.0X 100.0% 100.0% PERCENT TRIPS BY ST PARKERS 0,0X 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0,0% 0.0% PERCENT TRIPS BY IT PARKERS 0.0% 0.0% 0.0X 0.0% 0.0% 0.0% 0.0X 0.0% 0.0% PERCENT TRIPS BY LT PARKERS 0.0% 0.0% 100.0% 0,0% 100.0X 100.0X 100.0% 100.0% 100.0% ST EMISSIONS/ST SPACE (gm/space) 0,00 ERR ERR ERR ERR ERR ERR ERR ERR IT EMISSIONS/IT SPACE (gm/space) 0.00 ERR ERR ERR ERR ERR ERR ERR ERR LT EMISSIONS/LT SPACE (gm/space) 0.00 0.00 1.44 0.00 6.82 12.21 50.30 59.47 16.28 ADJUSTED STx/STn EMISS RATE RATIO NA NA NA NA NA NA NA NA NA ADJUSTED ITx/ITn EMISS RATE RATIO NA NA NA NA NA NA NA NA NA ADJUSTED LTx/LTn EMISS RATE RATIO 4.47 4,45 4.38 4.45 4.78 6.81 20,04 33.16 19.01 X IDLE ADJUSTMENT, ST ENTERING 0.00% 0,00% 0.00% 0,00% 0.00X 0.00% 0,00% 0,00% NA X IDLE ADJUSTMENT, ST EXITING 0.00X 0.00% 0.00% 0.00X 0.00% 0.00% 0.00% 0.00% NA 2 IDLE ADJUSTMENT, IT ENTERING 0.00% 0.00% 0.00% 0,00X 0.00% 0.00% 0.00X 0,00% NA X IDLE ADJUSTMENT, IT EXITING 0.00% 0.00% 0,00% 0.00% 0.00% 0,00% 0.00% 0.00% NA 2 IDLE ADJUSTMENT, LT ENTERING 0;00% 0.00% -25.36% 0.00X 0.00% 0,00% 0.00% 0,00% -25.36% 2 IDLE ADJUSTMENT, LT EXITING 0,00% 0.00% 0,00% 0.00% 7.39% 56.98% 546.87% 664,89X 333,99X X IDLE ADJUSTMENT, TOTAL ENTER 0.00% 0.00% -25.36% 0.00% 0.00% 0.00% 0.00% 0,00% -25.36% % IDLE ADJUSTMENT, TOTAL EXIT 0.00X 0.00% 0.00% 0.00% 7,39X 56.987. 546,87% 664,89% 333.99X 2 IDLE ADJUSTMENT, TOTAL 0.00% 0.00% -25.36% 0.00% 7.39% 56.98% 546,87% 664.89% 279.72% ENTERING VEHICLE VMT 0.00 0.00 26.47 0.00 0.00 0.00 0,00 0.00 3.31 26.47 EXITING VEHICLE VMT 0,00 0.00 0.00 0.00 26.63 32.60 32.60 32.60 15.55 124.43 TOTAL VMT INSIDE FACILITY 0.00 0.00 26.47 0.00 26.63 32,60 32.60 32.60 18.86 150.90 Table B-16. Parking Emissions Model Results for Garage Alternative B2 ..' PARAMETERS SYMBOL HOUR 1 HOUR 2 HOUR 3 HOUR 4 HOUR 5 HOUR 6 HOUR 7 HOUR 8 STD MEAN TOTALS INPUT DATA: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE B2 MAX NUMBER OF LEVELS FROM ENTRANCE L 4 4 4 4 4 4 4 4 4 SHORT TERM (ST) SPACES Ps 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM (IT) SPACES Pi 0 0 ' 0 0 0 0 0 0 0 LONG TERM (LT) SPACES P1 800 800 800 800 800 800 800 800 800 GROSS SQUARE FEET PER SPACE B 390.0 390.0 390.0 390.0 390.0 390.0 390,0 390.0 390,0 NUMBER OF EXIT LANES Nx 1 1 1 1 1 1 1 1 1.0 ST ENTERING TRIPS per 100 ST SPACES Ysn 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 ST EXITING TRIPS per 100 ST SPACES . Ysx 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 IT ENTERING TRIPS per 100 IT SPACES Yin 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ' IT EXITING TRIPS per 100 IT SPACES Yix 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 • 0.0 LT ENTERING TRIPS per 100 LT SPACES Yln 0.0 0.0 15.4 0.0 0.0 0,0 0.0 0.0 1.9 LT EXITING TRIPS per 100 LT SPACES Ylx 0.0 0.0 0.0 0.0 19.5 25.4 35.6 19..5 12.5 INITIAL DIST COEFFIC., ENTERING Fn 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 INITIAL DIST COEFFIC., EXITING Fx 0,210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 EXTRA TRAVEL X, ENTERING VEHICLES Un 25 20 20 20 20 0 0 0 20.0 EXTRA TRAVEL X, EXITING VEHICLES Ux 0 0 0 0 0 0 0 0 0.0 ENGINE WARM-UP TIME (seconds/veh) Jx 10.0 10.0 10.0 ' 10.0 10.0 10.0 10.0 10.0 10.0 IDLING AT ENTRANCE (sec/veh) Zn 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 IDLING AT EXIT POINT (sec/veh) Zx 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 X VEHICLES WITH CATALYST C 86.97 86.97 86.97 86.97 86.97 86.97 86.97 86.97 86.97 X CAT COLD START, ST ENTERING PCCCsn 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA X CAT COLD START, IT ENTERING PCCCin 0.0 16.9 16.9 16.9 16,9 16.9 16.9 16.9 NA X CAT COLD START, LT ENTERING PCCCsn 15.3 15.2 15.2 15.2 15.2 15.2 15.2 15.2 15.2 X NONCAT COLD START, ST ENTERING PCCNsn 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA X NONCAT COLD START, IT ENTERING PCCNin 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11.B NA X NONCAT COLD START, LT ENTERING PCCN1n 11.9 11.4 11.4 11.4 11.4 11.4 11.4 11.4 11.4 AVERAGE VEHICLE SPEED, 1-20 mph S 7 7 7 7 7 7 7 7 . 7 HOT IDLE RATE (grams/minute) Ih 3.4400 3,4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 100% COLD RATE E 5 MPH (ge/oile) Ec 258.9E 258.98 258.98 258.9E 258.98 258.98 258.98 258.98 258.98 ST ENTERING RATE, (grams/mile) Esn 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA - ST EXITING RATE, (grams/mile) Esx 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA IT ENTERING RATE, (grams/mile) Ein 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0,00 , NA IT EXITING RATE, (grams/mile) Eix 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA LT ENTERING RATE, (grams/mile) Eln 58.36 58.36 58.36 58.36 58.36 58.36 58.36 58.36 58,36 LT EXITING RATE, (grams/Bile/ Elx 190.80 190.80 190.60 190.80 190.80 190.80 190.80 190.80 190.60 IDLE ADJUSTMENT (gm/v), ST ENTER Ksn -2.10 -3.87 -3.60 -3,87 -3.87 -2.96 -2.96 -2.96 NA - - IDLE ADJUSTMENT (gm/v), ST EXIT Ksx 0.00 0.00 0.00 0,00 0.57 15.22 80.46 113.07 NA IDLE ADJUSTMENT (gm/v), IT ENTER Kin -2.10 -3.69 -3.43 -3.69 -3.69 -2.82 -2.82 -2.82 NA IDLE ADJUSTMENT (gm/v), IT EXIT Kix 0.00 0.00 0.00 0.00 1.65 44.28 166,39 199.00., NA IDLE ADJUSTMENT (gm/v), LT ENTER Kin -3.75 -3.52 -3.27 -3.52 -3,52 -2.70 -2.70 -2.70 -3.27 IDLE ADJUSTMENT (gm/v), LT EXIT Klx 0.00 0.00 0.00 0.00 1.83 49.02 . 180.39 213.00 115.53 ST ENTERING EMISSIONS (grams) Dsn 0 0 0 0 0 0 0 0 0 0 °' ST EXITING EMISSIONS (grams) Qsx 0 0 0 0 0 0 0 0 0 0 IT ENTERING EMISSIONS (grams) Gin 0 0 0 0 0 0 0 0 0 0 , IT EXITING EMISSIONS (grams) Dix 0 0 0 0 0 0 0 0 0 0 LT ENTERING EMISSIONS (grams) gin 0 0 1,305 , 0 0. 0 0 0 163 1,305 LT EXITING EMISSIONS (grams) Qlx 0 ' 0 0 0 6,188 16,073 40,377 46,409 13,631 109,047 ST PARKING EMISSIONS (grams) •Dsz 0 0 0 0 0 0 0 0 0 0 IT PARKING EMISSIONS (grams) Diz 0 0 0 . 0 0 0 0 0 0 0 LT PARKING EMISSIONS (grams) Qlz 0 0 1,305 0 6,188 16,073 40,377 46,409 13,794 110,352 ENTERING VEHICLE EMISSIONS (gm) Djn 0 0 1,305 0 0 0 0 0 163 1,305 1 EXITING VEHICLE EMISSIONS (gm) Djx 0 0 0 0 6,188 16,073 40,377 46,409 13,631 109,047 ' r TOTAL EMISSIONS (grams) Djz 0 0 1,305 0 6,188 16,073 40,377 46,409 13,794 110,352 TOTAL EMISSIONS•(pounds) Djz 0.0 0.0 2.9 0.0 13.6 35.4 89.0 102.3 30.4 243.3 PERCENT EMISSIONS BY ST PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0,0% PERCENT EMISSIONS BY IT PARKERS 0.0% 0.0X 0.0% 0.0% , 0,0% 0.0% 0.0% 0.0% 0.0% PERCENT EMISSIONS BY LT PARKERS 0.0% 0.0% 100.0% 0.0X 100.0% 100.0% 100.0% 100.0% 100.0% PERCENT TRIPS BY ST PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0X 0.0%. 0.0% PERCENT TRIPS BY IT PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0X 0.0% 0.0% , PERCENT TRIPS BY LT PARKERS 0.0% 0.0% 100.0% 0.0% 100.0X 100.0X 100.0% 100.0% 100,0% ST EMISSIONS/ST SPACE (gm/space) 0.00 ERR ERR ERR 'ERR ERR ERR ERR - ERR , IT EMISSIONS/IT SPACE (gm/space) 0.00 ERR ERR ERR ' ERR ERR ERR ERR ERR LT EMISSIONS/LT SPACE (gm/space) 0,00 0.00 1.63 0.00 7.74 20.09 50.47 58.01 17.24 ADJUSTED STx/STn EMISS RATE RATIO NA NA NA NA . NA NA NA NA NA ADJUSTED ITx/ITn EMISS RATE RATIO NA NA NA NA NA NA NA NA NA ADJUSTED LTx/LTn EMISS RATE RATIO 4.42 4.39 4.28 4.39 4.60 9.78 24.57 28.24 17.34 X IDLE ADJUSTMENT, ST ENTERING 0.00% 0.00% 0.00% 0.00% 0.00X 0.00X 0.00% 0.00% NA X IDLE ADJUSTMENT, ST EXITING 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% NA X IDLE ADJUSTMENT, IT ENTERING 0.00% 0.00X 0,00% 0.00% 0.00% 0.00% 0.00% 0.00X NA X IDLE ADJUSTMENT, IT EXITING 0.00% 0.00% .0.00X 0.00% 0.00X 0.00% 0.00% 0.00% NA X IDLE ADJUSTMENT,. LT ENTERING 0.00% 0.00% -23.63% 0.00% 0.00% 0.00% 0.00% 0.00% -23.63X X IDLE ADJUSTMENT, LT EXITING 0.00X 0.00% 0.00% 0.00% 4.84% 129.46X 476.44% 562.55% 305.13% ' X IDLE ADJUSTMENT, TOTAL ENTER 0.00X 0.00X -23.63% 0.00% 0.00% 0.00% 0.00% 0.00X -23.63% 7 IDLE ADJUSTMENT, TOTAL EXIT 0.00% 0.00% 0.00% 0.00% 4.84% 129.46% 476.44% 562.55% 305.13% X IDLE ADJUSTMENT, TOTAL 0.00% 0.00% -23.63% 0.00% 4.84X 129,46% 476.44% 562.55% 256.50% ENTERING VEHICLE VMT 0.00 0.00 . 29.29 0.00 0.00 0.00 0.00 0.00 3.66 29.29 EXITING VEHICLE VMT 0.00 0,00 0.00. 0.00 30.94 36.71 36.71 36.71 17.63 141.07 TOTAL VMT INSIDE FACILITY 0.00 0.00 29.29 0.00 30.94 36.71 36.71 36.71 21.30 170.36 MODEL OUTPUT: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE B2 TOTAL SPACES P B00 800 800 800 B00 800 B00 B00 B00 GROSS PARKING AREA (square feet) A 312,000 312,000 312,000 312,000 312,000 312,000 312,000 312,000 312,000 EXIT DEMAND, SHORT TERM Vdsx 0 0 0 0 0 0 0 0 0 0 EXIT DEMAND, INTERMEDIATE TERM Vdix 0 0 0 0 0 0 0 0 0 0 EXIT DEMAND, LONG TERM Vdlx 0 0 0 0 156 203 2B5 156 100 B00 TOTAL EXIT DEMAND Vdjx 0 0 0 0 156 203 285 156 100 800 TOTAL EXIT CAPACITY Xc 185 185 185 185 185 185 185 185 185 MEAN EXIT QUEUE (vehicles/lane) Xq 0.0 0.0 0.0 0.0 0.8 9.0 68.1 103.6 22.7 ST EXIT CARRY-OVER (vehicles) Vqs 0 0 0 0 0 0 0 0 0.0 IT EXIT CARRY-OVER (vehicles) Vqi 0 0 0 0 0 0 0 0 0.0 -_ LT EXIT CARRY-OVER (vehicles) Vql 0 0 0 0 0 18 118 B9 28.2 TOTAL EXIT CARRY-OVER (vehicles) Vq 0 0 0 0 0 18 118 89 28.2 SHORT TERM ENTERING TRIPS Vsn 0 0 0 0 0 0 0 0 0 0 SHORT TERM EXITING TRIPS Vsx 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM ENTERING TRIPS Yin 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM EXITING TRIPS Vix 0 0 0 0 0 0 0 0 0 0 LONG TERM ENTERING TRIPS Vin 0 0 123 0 0 0 0 0 15 123 LONG TERM EXITING TRIPS Vlx 0 0 0 0 156 185 185 185 89 711 TOTAL ENTERING TRIPS Vjn 0 0 123 0 0 0 0 0 15 123 TOTAL EXITING TRIPS Vjx 0 0 0 0 156 185 185 185 89 711 TOTAL TRIPS Vjz 0 0 123 0 156 185 165 185 104 834 FINAL GIST COEFFICIENT, ENTERING Gn 1.840 1.840 1.840 1.840 1,840 1.840 1.840 1.840 1.840 FINAL DIST COEFFICIENT, EXITING 6x 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 MEAN TRAVEL PATH (feet/vehicle) D NA NA 1,028 NA 1,028 1,028 1,028 1,028 NA ENTERING VEHICLE TRAVEL (ft/veh) Dn 1,305 1,253 1,253 1,253 1,253 1,048 1,048 1,048 1,253 EXITING VEHICLE TRAVEL'(ft/veh) Dx 1,048 1,048 1,048 1,048 1,048 1,048 1,048 1,048 1,048 MAXIMUM ENTER IDLE TIME (sec/veh) Mn 15 15 17 15 15 15 15 15 17.5 MINIMUM EXIT IDLE TIME (sec/veh) Mx 30 30 30 30 47 178 1123 1692 789.2 MOBILE/EMFAC IDLE TIME FRACTION H 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 IDLE TIME COEFFICIENT (sec/ft) R 0.0396 0.0396 0.0396 0.0396 0,0396 0.0396 0.0396 0.0396 0.0396 MOBILE/EMFAC ENTER IDLE SECONDS Tn 52 50 50 50 50 42 42 42 49.7 MOBILE/EMFAC EXIT IDLE SECONDS Tx 42 42 42 42 42 42 42 42 41.5 MEAN EXIT TIME (seconds/vehicle) Xt 0 0 0 0 107 236 1,184 1,753 B50 I CAT COLD START, ST EXITINGG PCCCsx 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA I CAT COLD START, IT EXITING PCCCix 100.0 100.0 100.0 100,0 100.0 100.0 100.0 100.0 NA I CAT COLD START, LT EXITING PCCCIx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 I NONCAT COLD START, ST EXITING PCCNsx 0.0 11.7 11.7 11,7 11.7 11.7 11.7 11.7 NA I NONCAT COLD START, IT EXITINGG PCCNix 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11.8 NA I NONCAT COLD START, LT EXITING PCCNsx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 I COLD STARTS, ST ENTERING TRIPS Wsn 0.0 18,0 18.0 18.0 18.0 18.0 18.0 18.0 NA I COLD STARTS, ST EXITING TRIPS Wsx 0.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA I COLD STARTS, IT ENTERING TRIPS Win 0.0 16.3 16.3 16.3 16.3 16.3 16.3 16.3 NA I COLD STARTS, IT EXITING TRIPS Wix 87.0 88.5 88.5 88.5 88.5 88.5 88.5 88.5 NA I COLD STARTS, LT ENTERING TRIPS Win 14.9 14.7 14.7 14.7 14.7 14.7 14.7 14.7 14.7 I COLD STARTS, LT EXITING TRIPS Wlx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 1002 COLD IDLE RATE (ge/ain) lc 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 COLD/HOT IDLE (g./.in), ST ENTER Isn 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (gm/min), ST EXIT Isx 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (ga/ain), IT ENTER Iin 3.440 6.390 6.390 6.390 6.390 6.390 6.390 6.390 NA COLD/HOT IDLE (ga/ain), IT EXIT lix 19.218 19.497 19.497 19.497 19.497 19.497 19.497 19.497 NA COLD/HOT IDLE (ga/ain), LT ENTER Iln 6.140 6.103 6.103 6.103 6.103 6.103 6.103 6.103 6,103 COLD/HOT IDLE (go/min), LT EXIT Ilx 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 &u j4aa PPS a o.,.: a" ! 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Carbon Monoxide Impacts Frog Renton Parking Garage Alternative 81 with One Exit Lane and 40% Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 38.2 36.7 34.8 29.5 24.3 17.9 12.8 8.0 Level 2 31.1 26.7 25.4 22.3 18.7 14.0 10.3 6.4 Level 3 5.0 3,4 3.3 3.0 2.7 2.1 1.6 1.0 Total 66.7 63.5 54.9 45.7 34.1 24.7 15.4 Mean Dispersion Downwind of Garage B-Hour Average Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 12.4 11.9 11.3 9.6 7.9 5.B 4.2 2.6 Level 2 8.5 7.3 7,0 6.1 5.1 3.8 2.8 1.8 Level 3 1.4 0.9 0.9 0.8 0.7 0.6 0.4 0.3 Total 20.1 19.2 16.5 13.7 10.2 7.4 4.6 Table B-22. Carbon Monoxide Impacts from Renton Parking Garage Alternative B2 with One Exit Lane and 407. Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 43.4 41.7 39,6 33.6 . 27.6 20.3 14.6 9,1 Level 2 34.7 29.6 28.4 24.9 20,9 15.7 11.5 7.1 Level 3 19,8 13.4 13.1 12.2 10.7 8.5 6.3 4.1 Level 4 3.2 1.7 1.6 1.5 1.4 1.2 0.9 0.6 Total 86.6 82.7 72.2 60.7 45.7 33.4 20.9 8-Hour Average Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 12.9 12.4 11.8 10.0 8.2 6.0 4.3 2.7 Level 2 10.3 8.9 8.4 7.4 6.2 4,7 3.4 2.1 Level 3 5.9 4,0 3.9 3,6 3,2 2.5 1.9 1.2 Level 4 0.9 0.5 0.5 0.4 0,4 0.4 0.3 0,2 Total 25.7 - 24.6 21.4 18.0 13.6 9.9 6.2 Table B-23. Parking Emissions Model Results for Garage Alternative 81 - Two Exit Lanes PARAMETERS SYMBOL HOUR 1 HOUR 2 HOUR 3 HOUR 4 HOUR 5 HOUR 6 HOUR 7 HOUR 8 'WTD MEAN TOTALS INPUT DATA: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE 81 MAX NUMBER OF LEVELS FROM ENTRANCE L 3 3 3 3 3 3 3 3 3 SHORT TERM (ST) SPACES Ps 0 0 0 0 0 0 0 0 0 -- INTERMEDIATE TERM (IT) SPACES Pi 0 0 0 0 0 0 0 0 0 LONG TERM (LT) SPACES ' PI 800 800 800 800 B00 800 800 800 800 GROSS SQUARE FEET PER SPACE B 378,0 390.0 390.0 390.0 390,0 390.0 390.0 390.0 388.5 NUMBER OF EXIT LANES Nx 2 2 2 2 2 2 2 2 2.0 ST ENTERING TRIPS per 100 ST SPACES Ysn 0.0 0.0 0.0 0.0 0.0 0.0 0.0 . 0.0 . 0.0 ST EXITING TRIPS per 100 ST SPACES Ysx 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 IT ENTERING TRIPS per 100 IT SPACES Yin 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 IT EXITING TRIPS per 100 IT SPACES Yix 0.0 0.0 0.0 ' 0.0 0,0 , 0.0 0.0 0.0 0.0 LT ENTERING TRIPS per 100 LT SPACES Yln 0.0 0.0 15.7 0.0 0.0 0.0 0,0 0.0 2.0 LT EXITING TRIPS per 100 LT SPACES Ylx 0.0 0.0 0.0 0.0 18.9 24,0 38.2 18.9 . 12.5 INITIAL DIST COEFFIC., ENTERING Fn 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 INITIAL DIST COEFFIC., EXITING Fx 0.210 0.210 0.210 , 0.210 0.210 0.210 0.210 0.210 0.210 EXTRA TRAVEL X, ENTERING'VEHICLES Un 25 20 20 20 20 0 0 0 20,0 EXTRA TRAVEL 7., EXITING VEHICLES Ux 0 0 0 0 0 0 0 0 0.0 ENGINE WARM-UP TIME (seconds/veh) Jx 10.0 10..0 10.0 10.0 10.0 10,0 10,0 10,0 10.0 IDLING AT ENTRANCE (sec/veh) Zn 3.0 3.0 3.0 3,0 3.0 3.0 ' 3.0 3.0 3,0 IDLING AT EXIT POINT (sec/veh) Zx 16.0 16.0 16.0 16,0 16.0 16.0 16.0 16.0 16.0 . X VEHICLES WITH CATALYST C 86,97 86.97 86.97 86.97 86.97 86.97 86.97 86;97 86.97 X CAT COLD START, ST ENTERING PCCCsn 0.0 18,9 18.9 18.9 18.9 18.9 18.9 18.9 NA X CAT COLD START, IT ENTERING PCCCin 0.0 16.9 16.9 16.9 16.9 16.9 16.9 16.9 NA X CAT COLD START, LT ENTERING PCCCsn 15.3 15.2 15,2 15,2 15.2 15.2 15.2 15.2 15.2 X NONCAT COLD START, ST ENTERING PCCCsn 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA X NONCAT COLD START, IT ENTERING FCCNin 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11.8 NA X NONCAT COLD START,. LT ENTERING PCCNIn 11.9 11.4 11.4 11,4 11.4 11.4 11,4 11,4 11.4 AVERAGE VEHICLE SPEED, 1-20 mph S 7 7 7 7 7 7 7 . 7 7 HOT-IDLE RATE (grams/minute) Ih 3.4400 3,4400 3.4400 3.4400 3.4400 3.4400 3.4400 3.4400 14400 100 COLD RATE e 5 MPH (gm/mile) Ec 258.98 258.98 258.98 258.9E 258.98 258.98 258.98 258.98 258.98 ST ENTERING RATE, (grams/mile) Esn 0.00 0.00 0,00 0,00 0,00 0.00 0.00 0.00 NA ST EXITING RATE, (grams/mile) Esx 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 NA IT ENTERING RATE, (grams/mile) Ein 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0.00- NA IT EXITING RATE, (grams/mile) Eix 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA LT ENTERING RATE, (grams/mile) Eln - 58,36 58.36 58.36 58.36 58.36 58,36 58.36 58.36 58.36 LT EXITING RATE, (grams/mile) Elx 190.80 190.80 190.80 190.80 190.80 190..80 190.80 190,80 190.80 MODEL OUTPUT: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE 81 TOTAL SPACES P 800 800 BOO 800 800 BOO B00 B00 800 GROSS PARKING AREA (square feet) ' A 302,400 312,000 312,000 312,000 312,000 312,000 312,000 312,000 310,800 EXIT DEMAND, SHORT TERM Vdsx . 0 0 0 0 0 0 0' 0 0 0 - EXIT DEMAND, INTERMEDIATE TERM . Vdix 0 0 0 0 0 0 0 0 0 0 -_- EXIT DEMAND, LONG TERM Vdlx 0 0 0 0 151 192 305 151 100 B00 TOTAL EXIT DEMAND Vdjx 0 0 0 0 151 192 305 151 100 800 TOTAL EXIT CAPACITY Xc 371 371 371 371 371 371 371 371 371 MEAN EXIT QUEUE (vehicles/lane) Xq 0.0 0.0 0.0 0.0 0.4 0.5 0.8 0.4 0,3 ST EXIT CARRY-OVER (vehicles) Vqs 0 0 0 0 0 0 0 0 0.0 IT EXIT CARRY-OVER (vehicles) Vqi 0 0 0 0 0 0 0 0 0.0 LT EXIT CARRY-OVER (vehicles) Vql 0 0 0 0 0 0 0 0 0.0 --- TOTAL EXIT CARRY-OVER (vehicles) Vq 0 0 0 0' 0 0 0 0 0.0 SHORT TERM ENTERING TRIPS Vsn 0 0 0 0 0 0 0 0 0 0 SHORT TERM EXITING TRIPS . Vsx 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM ENTERING TRIPS Yin 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM EXITING TRIPS Vix 0 0 0 0 0 0 0 0 0 0 LONG TERM ENTERING TRIPS Vln 0 0 126 0 0 0 0 0 16 126 LONG TERM EXITING TRIPS Vlx 0 0 0 0 151 192 305 151 100 800 _ TOTAL ENTERING TRIPS Vjn 0 0 126 0 0 0 0 0 16 126 TOTAL EXITING TRIPS Vjx 0 0 0 0 151 192 305 151 100 800 TOTAL TRIPS Vjz 0 0 126 0 151 192 305 151 116 926 FINAL DIST COEFFICIENT, ENTERING Gn 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 FINAL DIST COEFFICIENT, EXITING 6x 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 1.630 MEAN TRAVEL PATH (feet/vehicle) D NA NA 910 NA 910 910 910 910 NA - ENTERING VEHICLE TRAVEL (ft/veh) Dn 1,140 1,113 1,113 1,113 1,113 930 930 930 1,113 __ EXITING VEHICLE TRAVEL (ft/veh) Dx 916 930 930 930 930' 930 930 930 930 MAXIMUM ENTER IDLE TIME (sec/veh) Mn 12 12 13 12 12 12 12 12 13,4 MINIMUM EXIT IDLE TIME (sec/veh) Mx 29 29 29 29 37 39 46 37 41.0 MOBILE/EMFAC IDLE TIME FRACTION H 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 - IDLE TIME COEFFICIENT (sec/ft) R 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 MOBILE/EMFAC ENTER IDLE SECONDS 'Tn 45 44 44 44 44 37 37 37 44.1 MOBILE/EMFAC EXIT IDLE SECONDS Tx 36. 37 37 37 37 37 37. 37 36,9 - MEAN EXIT TIME (seconds/vehicle) Xt 0 0 0 0 91 93 99 91 95 2 CAT COLD START, ST EXITINGG PCCCsx 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA 2 CAT COLD START, IT EXITING PCCCix 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 NA 2 CAT COLD START, LT EXITING PCCCIx 100.0 100.0 100,0 100.0 100.0 100.0 100.0 100.0 100.0 1 NONCAT COLD START, ST EXITING PCCNsx 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA X NONCAT COLD START, IT EXITING PCCNix 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11.8 NA 2 NONCAT COLD START, LT EXITING PCCNsx 100.0 100.0 100,0 100.0 100.0 100.0 100.0 100.0 100.0 2 COLD STARTS, ST ENTERING TRIPS Wsn 0.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA X COLD STARTS, ST EXITING TRIPS Wsx 0.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA X' COLD STARTS, IT ENTERING TRIPS Win 0.0 16.3 16.3 16.3 16.3 16.3 16.3 16.3 NA X COLD STARTS, IT EXITING TRIPS Mix 87.0 88.5 88.5 88.5 B8.5 88.5 BIM 88.5 NA 1 COLD STARTS, LT ENTERING TRIPS Win 14.9 14.7 14.7 14.7 14.7 14.7 14.7 14.7 14.7 1 COLD STARTS, LT EXITING TRIPS Wlx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 1002 COLD IDLE RATE (ge/ein) lc 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 COLD/HOT IDLE (ge/sin), ST ENTER Isn 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (gm/min), ST EXIT Isx 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (gm/min), IT ENTER . Iin 3.440 6.390 6.390 6.390 6.390 6.390 6.390 6.390 NA COLD/HOT IDLE (gm/min), IT EXIT Iix 19.218 19.497 19.497 19.497 19.497 19.497 19.497 19.497 NA - COLD/HOT IDLE (ge/einl, LT ENTER Iln 6.140 6.103 6.103 6.103 6.103 6.103 6.103 6.103 6.103 COLD/HOT IDLE (ge/ein), LT EXIT Ilx 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 IDLE ADJUSTMENT (gm/v), ST ENTER Ksn -1.90 -3.58 -3.43 -3.58 -3.56 -2.78 -2.78 -2.78 NA _ IDLE ADJUSTMENT (gm/v), ST EXIT Ksx 0.00 0.00 .0.00 0.00 0.04 0.29 0.98 0.04 NA i IDLE ADJUSTMENT (gm/v), IT ENTER Kin -1.90 -3.42 -3.27 -3.42 -3,42 -2.65 -2.65 -2.65 NA IDLE ADJUSTMENT (ge/v), IT EXIT Kix 0.00 0.00 0.00 0.00 0.12 0.84 2.84 0.12 NA IDLE ADJUSTMENT (ga/v), LT ENTER Kin -3.40 -3.26 -3.12 -3.26 -3.26 -2.53 -2.53 -2.53 -3.12 IDLE ADJUSTMENT (ga/v), LT EXIT ' Klx 0.00 0.00 0.00 0.00 0.13 0.94 3.15 0.13 1.47 ST ENTERING EMISSIONS (grams) Qsn 0 0 0 0 0 0 0 0 0 0 ST EXITING EMISSIONS (grams) Dsx 0 0 0 0 0 0 0- 0 0 0 IT ENTERING EMISSIONS (grams) Qin 0 0 0 0 0 0 0 0 _ 0 0 IT EXITING EMISSIONS (grams) Dix 0 0 0 0 0 0 0 0 0 0 LT ENTERING EMISSIONS (grams) Din 0 0 1,153 0 0 0 0 0 144 1,153 LT EXITING EMISSIONS (grams) Dlx 0 0 0 0 5,100 6,648 11,230 5,100 3,510 28,078 ST PARKING EMISSIONS (grams) Dsz 0 0 0 0 0 0 0 0 0 0 IT PARKING EMISSIONS (grams) Diz 0 0 0 0 0 0 0 0 0 0 LT PARKING EMISSIONS (grams) Dlz 0 0 1,153 0 5,100 6,648 11,230 5,100 3,654 29,231 ENTERING VEHICLE EMISSIONS (ga) Qjn 0 . 0 1,153 0 0 0 0 0 144 1,153 EXITING VEHICLE EMISSIONS (gm) Djx 0 0 0 0 5,100 6,648 11,230 5,100 3,510 28,076 j TOTAL EMISSIONS (grams) Qjz 0 0 1,153 0 5,100 6,648 11,230 5,100 3,654 29,231 TOTAL EMISSIONS (pounds) Qjz 0.0 0.0 2.5 0.0 11.2 14.7 24.8 11.2 8.1 64.4 PERCENT EMISSIONS BY ST PARKERS 0.0X 0.0X 0.0% 0.0% 0.0% 0.0% 0.0X 0.0% 0.0X PERCENT EMISSIONS BY IT PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.01 0.0% PERCENT EMISSIONS BY LT PARKERS 0.0X 0.0% 100.0X 0.0X 100.0% 100.0% 100.0% 100.0X 100.0X PERCENT TRIPS BY ST PARKERS 0.0% 0.0% 0.0% 0.0X 0.0% 0.0% 0.0% 0.0X 0.0% PERCENT TRIPS BY IT PARKERS 0,0% 0.0% 0.0X 0.0% '0.01 0.0% 0.01 0.0% 0.0% PERCENT TRIPS BY LT PARKERS 0.0% 0.0% 100.0% 0.0% 100.0% 100.0% 100.0% 100.0% 100.0% ST EMISSIONS/ST SPACE (gm/space) 0.00 ERR ERR ERR ERR ERR ERR ERR ERR r- IT EMISSIONS/IT SPACE (gm/space) 0.00 ERR . ERR ERR ERR ERR . ERR ERR . ERR LT EMISSIONS/LT SPACE (gm/space) 0.00 0.00 1.44 0.00 6.37 8.31 14.04 6.37 4.57 ADJUSTED STx/STn EMISS RATE RATIO NA NA NA NA NA NA NA NA NA ADJUSTED ITx/ITn EMISS RATE RATIO. NA NA NA NA NA NA NA NA NA ADJUSTED LTx/LTn EMISS RATE RATIO 4.47 4.45 4.3B 4.45 4.47 4.46 , 4.74 4.35 4.57 X IDLE ADJUSTMENT, ST ENTERING 0.00X 0.00% 0.00% 0.00% 0.00% 0.00X 0.00% 0.00% NA X IDLE ADJUSTMENT, ST EXITING 0.00% 0.00% 0.00% 0.00% 0.00X 0.00% 0.00% 0.00% NA X IDLE ADJUSTMENT, IT ENTERING 0,00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% NA . X IDLE ADJUSTMENT, IT EXITING' 0.00% 0.00X 0.00X 0.00X 0.00% 0.00% 0.00% 0.00X NA X IDLE ADJUSTMENT, LT ENTERING 0.00% 0.00% -25.36% 0.00% 0.00% 0.00% 0.00% 0.00% -25.36% X IDLE ADJUSTMENT, LT EXITING 0.00% 0.00% 0.00% 0.00X 0.38% 2.78% .9.36% 0.36% 4.38% X IDLE ADJUSTMENT, TOTAL ENTER 0.00% 0.00% -25.36% 0.00% 0.00% 0.00% 0.00% 0.00% -25.36% X IDLE ADJUSTMENT, TOTAL EXIT 0.00% 0.00% 0.00% 0.00% 0.38% 2.78% 9.36X 0.38% 4.38% X IDLE ADJUSTMENT, TOTAL 0.00% 0.00% -25.36% 0.00% 0.38% 2.78% 9.36X 0.38% 0.35% ENTERING VEHICLE VMT 0.00 0.00 26.47 0.00 -0.00- 0.00 0.00 0.00 3,31 26.47 EXITING VEHICLE VMT 0.00 0.00 0.00 0.00 26.63 33.90 53.82 26.63 17.62 140.98 TOTAL VMT INSIDE FACILITY 0.00 0.00 26.47 0.00 26.63 33.90 53.82 26.63 20.93 167.45 !&B | ■" VOZ 2Z71 §2§ ) 2/§§ ! ;;■ --~ , , --- ; mg� §§7 ! _ __ i ... d§g ; §§ki gags ... ... §) / § ::: ::: ::: ::: ;§ ,■: --- ;;m ;E■ §E^ §\§ --- - .» §S §!. „.. 25■ ;Sa EEk §� iiEE ii££ &5z b 14e§ 2 -- --- g--: ;;;; ■R--- -22 --- 2 NO $l eeE --.-. -.-. .- -.-. .- -.-. .- . �a i!, ■i us gar.- gag :gut!.e, i&§ - a,i i«s ««k !! .2 §§§ au4 aa4 al4 SU4 1EN -I S k §II a &s% . a$ ■§e - ■ ■ ■ eij E IS §\ � k§ .. . ,� . : �f ) k I §®B . r- a a § _ \§§ �1. Ili 4' . e % - f§g Kg gas pas gala gnu BI ' i- §a� » ! ass ■■■ A■■ @ .■ . ._. . ___ ■■a ;;a 'as 22' VI • 1 it • —1§ ■;; r. . . . . . . . . . . 0� § W,a _ . cc0 ccc 0cc c0c §§_ �\ . §■§ 2■§ §■■ 000 7g2 . Oe EC (E2 §2 PP i.E [ , ' KB . . . . ■ • Esa ng §2© ' | �§§ §{■ $ ■�. ki§ | §2. ' | . . 07E . E £■a §§k ' max . . � � Ti: §E ::: ::: c:: . MI1 , , . . . . . . . . . . . . | `■a | . . ligi . 0,. | 2gp | . , m . | 2§ ) | Aep | , ` .} . | k/a | ' . '. 2 ::: ;;i | ;_; : ; : c i . y , . . t . . \ Table 8-26. Carbon Monoxide Impacts From Renton Parking Garage Alternative 81 with Two Exit Lanes and 40% Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 10.7 10.3 9.7 8.3 6.8 5.0 3.6 2.2 Level 2 7.3 6.3 6.0 5.3 4.4 3.3 2.4 1.5 Level 3 1.2 0.8 0.8 0,7 0.6 0.5 0.4 0.2 Total 17.4 16.5 14.2 11.8 8.8 6.4 4.0 Mean Dispersion Downwind of Garage 8-Hour Average Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 3.2 3.1 2.9 2.5 2.1 1.5 1.1 0.7 Level 2 2.2 1.9 1.8 1.6 1.3 1.0 0.7 0.5 Level 3 0,4 0.2 0.2 0.2 0.2 0.2 0.1 0.1 Total 5.2 5.0 4.3 3.6 2.7 1.9 1.2 Table B-27. Parking Garage Emissions Model Results for Garage Alternative 82 with Two Exit Lanes PARAMETERS SYMBOL HOUR 1 HOUR 2 HOUR 3 HOUR 4 HOUR 5 HOUR 6 HOUR 7 HOUR 8 WID MEAN TOTALS INPUT DATA: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE B2 MAX NUMBER OF LEVELS FROM ENTRANCE L 4 4 4 4 4 4 4 4 4 SHORT TERM (ST) SPACES Ps ' 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM (IT) SPACES Pi 0 0 0 0 0 0 0 0 0 ' LONG TERM (LT) SPACES P1 800 800 800 800 800 800 800 800 800 , GROSS SQUARE FEET PER SPACE B 390.0 390.0 390.0 390.0 390.0 390.0 390.0 390.0 390.0 NUMBER OF EXIT LANES Nx 2 2 2 2 2 2 2 2 2,0 ST ENTERING TRIPS per 100 ST SPACES Ysn 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0,0 0.0 ST EXITING TRIPS per 100 ST SPACES Ysx 0.0 0,0 0.0 0.0 , 0.0 0,0 0.0 0.0 0,0 IT ENTERING TRIPS per 100 IT SPACES Yin 0.0 0.0 0.0 0,0 0.0 0,0 0.0 0.0 0.0 IT EXITING TRIPS per 100 IT SPACES Yix 0,0 0.0 0,0 0,0 0.0 0.0 0.0 0.0 0.0 LT ENTERING TRIPS per 100 LT SPACES Yln 0.0 0.0 15.4 0.0 0.0 0.0 0.0 0.0 1.9 LT EXITING TRIPS per 100 LT SPACES Ylx 0.0 0.0 0.0 0.0 19,5 25,4 35.6 19.5 12,5 INITIAL DIST COEFFIC., ENTERING Fn 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 0.210 INITIAL DIST COEFFIC., EXITING Fx 0.210 0.210 0,210 0.210 0.210 0.210 0.210 0.210 0.210 EXTRA TRAVEL X, ENTERING VEHICLES Un 25 20 20 20 20 0 0 0 20,0 EXTRA TRAVEL X, EXITING VEHICLES Ux 0 0 0 0 0 0 0 0 0.0 ENGINE WARM-UP TIME (seconds/veh) Jx 10.0 10.0 10.0 10.0 10.0 10.0 10,0 • 10.0 10.0 IDLING AT ENTRANCE (sec/veh) in 3.0 3.0 3,0 3.0 3.0 3.0 3,0 3.0 3.0 IDLING AT EXIT POINT (sec/veh) lx 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 X VEHICLES WITH CATALYST C 86.97 86.97 86.97 86.97 86.97 86.97 86.97 86.97 86,97 X CAT COLD START, ST ENTERING PCCCsn 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA X CAT COLD START, IT ENTERING PCCCin 0,0 16,9 16.9 16.9 16.9 16.9 16,9 16.9 NA X CAT COLD START, LT ENTERING PCCCIn 15.3 15.2 15.2 15.2 15.2 15.2 15.2 15.2 15.2 X NONCAT COLD START, ST ENTERING PCCNsn 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA X NONCAT COLD START, IT ENTERING PCCNin 0.0 11.8 11,8 11.8 11.8 11,8 11.8 11,8 NA X NONCAT COLD START, LT ENTERING PCCNIn 11.9 11.4 11.4 11,4 11.4 11,4 11.4 11.4 11.4 AVERAGE VEHICLE SPEED, 1-20 mph S 7 7 7 7 7 7 7 7 7 HOT IDLE RATE (grams/minute) Eh 3.4400 3.4400 3.4400 3,4400 3.4400 3,4400 3.4400 3.4400 3.4400 IOOX COLD RATE @ 5 MPH (gm/mile) Ec 258.98 258.98 258,98 258.98 258.98 258.98 258.98 258.98 258.98 ST ENTERING RATE, (grams/mile) Esn 0.00 0,00 0.00 0,00 0.00 0.00 0.00 0.00 NA ST EXITING RATE, (grams/mile) Esx 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 NA IT ENTERING RATE, (grams/mile) Ein 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA IT EXITING RATE, (grams/mile) Eix 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 NA LT ENTERING RATE, (grams/mile) Eln 58.36 58.36 58.36 58,36 58.36 58,36 58.36 58.36 58.36 LT EXITING RATE, (grams/mile) Elx 190.80 190.80 190.80 190.80 190.80 190.80 190.80 190.80 190.80 MODEL OUTPUT: RENTON FIRST CITY PARKING GARAGE ALTERNATIVE B2 TOTAL SPACES P 800 B00 800 800 800 800 BOO 800 800 GROSS PARKING AREA (square feet) A 312,000 312,000 312,000 312,000 312,000 312,000 312,000 312,000 312,000 EXIT DEMAND, SHORT TERM Vdsx 0 0 0 0 0 0 0 0 0 0 EXIT DEMAND, INTERMEDIATE TERM Vdix 0 0 0 • 0 0 0 0 0 0 0 EXIT DEMAND, LONG TERM Vdlx 0 0 0 0 156 203 285 156 100 800 TOTAL EXIT DEMAND Vdjx 0 0 0 0 156 203 285 156 100 800 TOTAL EXIT CAPACITY Xc 371 371 371 371 371 371 371 371 371 MEAN EXIT QUEUE (vehicles/lane) Xq 0.0 0.0 0.0 0.0 0.4 0.5 0.8 0.4 0.3 ST EXIT CARRY-OVER (vehicles) Vqs 0 0 0 0 0 0 0 0 0.0 IT EXIT CARRY-OVER (vehicles) Vqi 0 0 0 0 0 0 0 0 0.0 LT EXIT CARRY-OVER (vehicles) Vq1 0 0 0 0 0 0 0 0 0.0 TOTAL EXIT CARRY-OVER (vehicles) Vq 0 0 0 0 0 0 0 0 0.0 SHORT TERM ENTERING TRIPS Vsn 0 0 0 0 0 0 0 0 0 0 SHORT TERM EXITING TRIPS Vsx 0 0 0 0 0 0 0 0 0 0 INTERMEDIATE TERM ENTERING TRIPS Vin 0 0 0 0 0 0 0 0 0 0 - INTERMEDIATE TERM EXITING TRIPS Vix 0 0 0 0 0 0 0 0 0 0 LONG TERM ENTERING TRIPS Yin 0 0 123 0 0 0 0 0 15 123 LONG TERM EXITING TRIPS Vlx 0 0 0 0 156 203 285 156 100 800 TOTAL ENTERING TRIPS Vjn 0 0 123 0 0 0 0 0 15 123 TOTAL EXITING TRIPS Vjx 0 0 0 0 156 203 285 156 100 800 TOTAL TRIPS Vjz 0 0 123 0 156 203 285 156 115 923 FINAL DIST COEFFICIENT, ENTERING fin 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 FINAL DIST COEFFICIENT, EXITING 6x 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 1.840 MEAN TRAVEL PATH (feet/vehicle) D NA NA 1,028 NA 1,028 1,028 1,028 1,028 NA ENTERING VEHICLE TRAVEL (ft/veh) On 1,305 1,253 1,253 1,253 1,253 1,04E 1,04B 1,048 1,253 EXITING VEHICLE TRAVEL (ft/veh) Dx 1,048 1,048 1,048 1,048 1,048 1,048 1,048 1,048 1,048 MAXIMUM ENTER IDLE TIME (sec/veh) Mn 15 15 17 15 15 15 15 15 17.5 MINIMUM EXIT IDLE TIME (sec/veh) Mx 30 30 30 30 40 43 48 40 43.5 MOBILE/EMFAC IDLE TIME FRACTION H 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 0.4067 IDLE TIME COEFFICIENT (sec/ft) R 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 0.0396 MOBILE/EMFAC ENTER IDLE SECONDS Tn 52 50 50 50 50 42 42 42 49.7 MOBILE/EMFAC EXIT IDLE SECONDS Tx 42 42 42 42 42 42 42 42 41.5 MEAN EXIT TIME (seconds/vehicle) Xt 0 0 0 0 102 103 109 102 105 1 2 CAT COLD START, ST EXITING PCCCsx 0.0 18.9 18.9 18.9 18.9 18.9 18.9 18.9 NA • 2 CAT COLD START, IT EXITING PCCCix 100.0 100,0 100.0 100.0 100.0 100.0 100.0 100.0 NA 2 CAT COLD START, LT EXITING PCCCsx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 2 NONCAT COLD START, ST EXITING PCCNsx 0.0 11.7 11.7 11.7 11.7 11.7 11.7 11.7 NA S NONCAT COLD START, IT EXITING PCCNix 0.0 11.8 11.8 11.8 11.8 11.8 11.8 11..8 NA 2 NONCAT COLD START, LT EXITING PCCNIx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 x COLD STARTS, ST ENTERING TRIPS Wsn 0.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA 2 COLD STARTS, ST EXITING TRIPS Wsx 0.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 NA 2 COLD STARTS, IT ENTERING TRIPS Win 0.0 16.3 16.3 16.3 16.3 16.3 16.3 16.3 NA 2 COLD STARTS, IT EXITING TRIPS Wix 87.0 88.5 BB.5 88.5 88.5 88.5 88.5 B8.5 NA - 2 COLD STARTS, LT ENTERING TRIPS WIn 14.9 14.7 14.7 14.7 14.7 14.7 14.7 14.7 14.7 2 COLD STARTS, LT EXITING TRIPS Wlx 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 1001 COLD IDLE RATE (go/.in) lc 21.582 21.582 21.582 21.562 21.582 21.582 21.582 21.582 21.582 COLD/HOT IDLE (gi/iin), ST ENTER Isn 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (g./iin), ST EXIT Isx 3.440 6.702 6.702 6.702 6.702 6.702 6.702 6.702 NA COLD/HOT IDLE (g./.in), IT ENTER Iin 3.440 6.390 6.390 6.390 6.390 6.390 6.390 6.390 NA COLD/HOT IDLE (g./.in), IT EXIT Iix 19.218 19.497 19.497 19.497 19.497 19.497 19.497 19.497 NA COLD/HOT IDLE (g.hin), LT ENTER Iln 6.140 6.103 6.103 6.103 6.103 6.103 6.103 6.103 6.103 COLD/HOT IDLE (ge sin), LT EXIT Ilx 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 21.582 IDLE ADJUSTMENT (ga/v), ST ENTER Ksn -2.10 -3.87 -3.60 -3.87 -3.87 -2.96 -2.96 -2.96 NA IDLE ADJUSTMENT (gm/v), ST EXIT Ksx 0.00 0.00 0.00 0.00 0.00 0.15 0.73 0.00 NA IDLE ADJUSTMENT (gm/v), IT ENTER Kin -2.10 -3.69 -3.43 -3.69 -3.69 -2.82 -2.82 -2.82 NA IDLE ADJUSTMENT (gm/v), IT EXIT Kix 0.00 0.00 0.00 0.00 0.00 0,42 2.11 0.00 NA IDLE ADJUSTMENT (gm/v), LT ENTER Kin -3.75 -3.52 -3.27 -3.52 -3.52 -2.70 -2.70 -2.70 -3.27 IDLE ADJUSTMENT (gm/v), LT EXIT Klx 0.00 0.00 0.00 0.00 0.00 0.47 2.34 0.00 0.95 ST ENTERING EMISSIONS (grams) gsn 0 0 0 0 0 0 0 0 0 0 ST EXITING EMISSIONS (grams) Dsx 0 0 0 0 0 0 0 0 0 0 IT ENTERING EMISSIONS (grams) gin 0 0 0 0 0 0 0 0 0 0 IT EXITING EMISSIONS (grams) Dix 0 0 '0 0 0' 0 0 0 0 0 ' LT ENTERING EMISSIONS (grams) Din 0 0 1,305 0 0 0 0 0 163 1,305 LT EXITING EMISSIONS (grams) Qlx 0 0 0 0 5,903 7,782 11,464 5,903 3,881 31,052 ST PARKING EMISSIONS (grams) Dsz 0 0 0 ' 0 0 0 0 0 0 0 IT PARKING EMISSIONS (grams) Diz 0 0 0 0 0 0 0 0 0 0 LT PARKING EMISSIONS (grams) glz 0 0 1,305 0 , 5,903 7,782 11,464 5,903 4,045 32,357 ENTERING VEHICLE EMISSIONS (gm) Djn 0 0 . 1,305 0 0 0 0 0 163 1,305 EXITING VEHICLE EMISSIONS (gm) Djx 0 0 0 0 5,903 7,782 11,464 5,903 3,8B1 31,052 TOTAL EMISSIONS (grams) ' 'Qjz 0 0 1,305 0 5,903 7,782 11,464 5,903 4,045 32,357 TOTAL EMISSIONS (pounds) gjz 0.0 0.0 2.9 0.0 ' 13.0 17.2 . 25.3 13.0 8.9 71.3 PERCENT EMISSIONS BY ST PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% PERCENT EMISSIONS BY IT PARKERS 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% PERCENT EMISSIONS BY LT PARKERS 0.07.. 0.0% 100.0% 0.0X 100.0% 100.0% 100.0% 100.0% 100.0% PERCENT TRIPS BY ST PARKERS 0.0X 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% PERCENT TRIPS BY IT PARKERS 0.0X 0.0% 0.0% 0.0% 0.0% 0.0X 0.0X • 0.0% 0.0X PERCENT TRIPS BY LT PARKERS 0.0X 0.0X 100.0% 0.0% 100.0% 100.0% 100.0% 100.0% 100.0% ST EMISSIONS/ST SPACE (gm/space) • 0.00 , ERR ERR ERR ERR ERR ERR ERR ERR IT EMISSIONS/IT SPACE (gm/space) 0.00 ERR ERR ERR ERR ERR ERR ERR ERR ! LT EMISSIONS/LT SPACE (gm/space) 0.00 0.00 1.63 0.00 7.38 9.73 14.33 7.38 5.06 ADJUSTED STx/STn EMISS RATE RATIO NA NA NA. NA NA NA NA NA NA ADJUSTED ITx/ITn EMISS RATE RATIO NA NA NA NA NA NA NA NA NA ADJUSTED LTx/LTn EMISS RATE RATIO 4.42 4.39 4.28 4.39 4.39 4.31 4.52 4.26 4.39 2 IDLE ADJUSTMENT, ST ENTERING 0.00X 0.00% 0.00X 0.00% 0.00% 0.00% 0.00% 0.00% NA X IDLE ADJUSTMENT, ST EXITING 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% NA t X IDLE ADJUSTMENT, IT ENTERING 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00X 0.00% NA X IDLE ADJUSTMENT, IT EXITING 0.00% 0.00% 0.00% 0.00% 0.00% 0.00X 0.00X 0.00% NA X IDLE ADJUSTMENT, LT ENTERING 0.00% 0.00% -23.637. 0.00X 0.00X 0.00% 0.00% 0.00X -23.63X 2 IDLE ADJUSTMENT, LT EXITING 0.00X 0.00X 0.00% 0.00% 0.00% 1.24% 6.17% 0.00% 2.51% X IDLE ADJUSTMENT, TOTAL ENTER 0.00X . 0.00% -23.63X 0.00% 0.00% 0.00% 0.00% 0.00% -23.63% I._ 2 IDLE ADJUSTMENT, TOTAL EXIT 0.00% 0.00% 0.00% 0.00% 0.00% 1.24X 6.17% 0.00% 2.51% X IDLE ADJUSTMENT, TOTAL 0.00X 0.00% -23.63X 0.00% 0.00X 1.24% 6.17% 0.00% -0.98X ENTERING VEHICLE VMT 0.00 0.00 29.29 0.00 0.00 0.00 0.00 0.00 3.66 29.29 EXITING VEHICLE VMT 0.00 0.00 0.00 0.00 30.94 40.29 56.59 30.94 19.84 158.75 TOTAL VMT INSIDE FACILITY 0.00 0.00 29.29 0.00 30.94 40.29 56.59 30.94 23.51 188.04 r I = E g i a .... -=v ... ...SS 4^ �.a wi.A4 o.: 1 S a s o i JG 4= FJ� pi 4Ati : sag --e oee 000 1434 igle° o=- ... oee ... ... ... 5 15 - -0 e ... ... ... ... .-- -o o e o o D o e o e e e o e O �� -ee REiR Rio PRA Os s_ -e2 APB gem ism _s4 4 O= -e. .-a .-a -e -n e R'; M Yf A� 11 Rai ee EEE ERE ERE EnE 6.� l C . -0 0 0 0 0 D o e e o o e o 2 ! EON Eei z ! i H i; _ Iq i astsji i .. -W Y ' :s 3°aI - _ • E! - § § § § El e e e e tol I: _ = v r -ai §1/F | a■a -- :-- -- .:.1 s e | �� .vv �e� � .� K2§ 22■ 2;2 4;) 2;) 427 ig dl§ ._, .,. co. ... VIA' s■& --- ©-- - §- ■ §§ 8„ ::: „: • . . . . . . . . . . . . . . . ik§ ■ --- I■\ 2£� ■4� fief �■§t } $S ®' °°■ a■S '■! \■ 2Em a - g« 1-it 'a£ §k 2:' 2;; 4" 4" ;2; &§ §§E | "' ■■E ■■e ■■e mme M§§ --- --- --- --- --- . . . 999 999 999 999 VZ .! n- ~ iI --- --- --- --- --- � ��� !q9 9 9 9 9 9 9 . 9 9 9 9 9 9 ■ a %� i&§ 33a 2)d ��) �B2 & 11 i! §@.. ss4 sis■ sip ssV sts4 I2 -I§ -- -. Is a§k - ■ ■ ■ ■ , }a §§■ §§e ■ ■ ■ ■ § , m e e £ e. M' — =f && I/ k kl §Sg mr . ` 2 Table 8-30. Carbon Monoxide Impacts From Renton Parking Garage , Alternative 1 B2 with Two Exit Lanes and 40% Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 10.7 10.3 9.8 8.3 6.8 5.0 3.6 2.2 Level 2 8.6 7.4 7.0 6.2 5.2 3.9 2.8 1.8 Level 3 4.9 3.3 3.2 3.0 2.7 2.1 1.6 1.0 Level 4 0.8 0.4 0.4 0.4 0.3 0.3 0.2 0.2 Total 21.4 20.4 17.8 15.0 11.3 8.2 5.2 Mean Dispersion Downwind of Garage 8-Hour Average Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 ,500 1000 Level 1 3.8 3.6 3.4 2.9 2.4 1.8 1.3 0.8 Level 2 3.0 2.6 2.5 2.2 1.8 1.4 1.0 0.6 Level 3 1.7 1.2 1.1 1.,1 0.9 0.7 0.6 0.4 Level 4 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Total 7.5 7.2 6.3 5.3 4.0 . 2.9 1.8 k k� - -B a `, a\ • ".. i © )lk rt;■ ie -- . g a = N. ' _ 7§§ K� E.-I �� MS�m. § �2u pas §5§ I . . U _ �e all ft _ r■ eno COE Qcc Q;c c00 c0c ft § § 2§■ §■■ §§■ §§■ ... :IQ . . . @jaa ,,; . p; P;ts zsE� Kk■ ow- .�& .�� , 6 ,cc §■x ! @ j VEf ■7§ am§ 2§ - -' ■2q %§} §U� kk§ C.. -VP B§ a,, . DEA U%1 {\■ lak §B§ gaA ` l . 22; §m . .0. c.o. _..a U§ B72 sgEco. co. ,.0 00_ PAW ;§. a�� 2�� 2'� Ug� E§ . ■cc Nix i s2� :cc cG.. [c2 ... ,■■ | §k + , , . ! i 1 ::: ::: Emiil JS Of OO` y ��VV N:::NN inNv.�. 441 Igl sg a ... ... ... ... ... A gl g ooe ... oee eee ... IP- . >«E oee eoe ... e u ®e e o o u e 0 0 e e o o e e I ••• 3R iii=i iii� PER !`a ig afag ee! RmU FAR EER _e.o 2.1 AEA Hig vAm -"� gm@ g e e 00ff Pi 0 n..e n..e nn.te: gi=F' t,i _ NE= eoe ERE ERE RAE ERE weneee 000 e0 eee 0e = a� ___ _. _ ___ ___ Ii g :/ ®e3 ooa ooe o.e i� :® 1141i eRr ;esi Big NRS g= N i .. y N'J .. as saV _ i W i W i W i W i- 42 al- 6 '! I G 0 N le ft Table B-33. Carbon Monoxide Impacts from the Renton Parking Garage Alternative B2 with Two Exit Lanes and 55X Net Open Area Mean Dispersion Downwind of Garage Peak Hour Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet,) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 7.8 7.5 7.1 6.0 5.0 3.7 2.6 1.6 Level 2 6.2 5.4 5.1 4.5 3.8 2.8 2.1 1.3 Level 3 3.6 2.4 2.4 2.2 1.9 1.5 1.1 0.7 Level 4 0.8 0.4 0.4 0.4 0.3 0.3 0.2 0.2 Level 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ' 0.0 Total 15.7 15.0 13.1 11.0 8.3 6.1 3.8 Mean Dispersion Downwind of Garage 8-Hour Average Carbon Monoxide Increments (ppm) at Various Garage Distances (Feet) From the Garage Footprint Level Inside 10 25 75 150 300 500 1000 Level 1 2.8 2.6 2.5 2.1 1.7 1.3 0.9 0.6 Level 2 2.2 1.9 1.8 1.6 1.3 1.0 0.7 0.5 Level 3 1.3 0.8 0.8 0.8 0.7 0.5 0.4 0.3 Level 4 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Level 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Level 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Total 5.5 5.3 4.6 3.9 2.9 2.1 1.3 • •