The URL can be used to link to this page

Home My WebLink AboutLUA97-135 / Ik o 'ni' a_d ^f-�s!r u 1 4"•yry,+ ! � `.I a a sYY..... n.. I �' �. __«..-.-. �- N D•- 58EaOWItR ^'°I , NA � I .. 1 ... s. • f~ ,��e 1 r aJ ��; ` ®i ... 2 III .' A N IP N_I IP b e ;•.YPL' - ' - ;_INTERSTATE�HWtiT?OS _ ,;_ ,�� INTEnsrgrE - c] WI t c. IA _',11 �1 N II o 5 JONES "•AV. ENE. x c`" \ tiiiiii,;:l �,00 _tr. r ,� ,°NENNEWICK.'AVE�N Lr•e. .� ga.- .A a it- ='�i,.-.iiigi'•L�1±r -- e F�,lJ 4 ,4 -, .:,likiirr4, Ir... 1 da F es_-- E .& i� .-' ,�'�, x* sO_.; �•T' Ill ±Vi tf3S a 1 i--,« �.'` Qt 5 ' '� 14JI C� �_ �-r-m_ �MONTEREY AVE..N.E. �—F _ � r ---1------( .9,)\. 2 i !• ��y°+ 1 i ! 4'''s, Eil -04 n d3.6 &J` ni w s�- J0T it -if: • 1i ABERDEEN ' 'AVE. N.E. e A s, , -. -4 Kennydale nr.;0 . ro ®--y `Lions Park A-''-- N ,'- > o = .z- ----..- m m lAiRl Jowl N xs g"„....... >m® z j�.-= $' iBLA/NEr:eE�„ac ` n m .s . ":Ld oz ri .. - PRELIMINARY PLAT OF 1 WHISPERING PINES ;I , PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 LEGAL DESCRIPTION PARCEL 3 PROJECT DATA Son(sr. ,, SITE THAT PORTION OF TRACTS 255,256,257,275,276,277 OF C.D. . comic ZOIING �___SHOE FAMILY(R-5) T' HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO.4,ACCORDING PROPOSED za•c__ WE EMILY(R-6) TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS,PAGE 82, SYTE ACREHZ __2.79 ACRES IRECORDS OF KING COUNTY,WASHINGTON,DESCRIBED AS FOLLOWS: LOTSPROPOSED--- ----11 I.P.LOTS PEA ACRE ___.__-._025 Tz ' .,;, AVERAGE LDT ME .__ __.__._._..__0.160 SQ.FT. - BEGINNING AT THE NORTHWEST CORNER OF TRACT 277; SMAUEST LOT ._.-.__5,603 SO.FT. THENCE SOUTH 89'43'59"EAST 114.44 FEET ALONG THE NORTH LINE OF aD a SAID TRACT TO THE TRUE POINT OF BEGINNING; ROADS w THENCE CONTINUING SOUTH 89'43'59"EAST 517.18 FEET; THENCE SOUTH 00'34'06"NEST 221.97 FEET TO A POINT ON THE SOUTH ROAD LOW ._ __421 LINEAL FEET u/L § LINE OF SAID TRACT 255; E THENCE 2WT55 AND Y79."NEST 517.62 FEET ALONG THE SOUTHERLY UNE OF LO'T SIZING THENCE NORTH 0033.45"EAST 80.05 FEET; THENCE NORTH 8952'13"NEST 94.15 FEET TO THE BEGINNING OF CURVE TO t9tOs5 511E A16A(0*5): 2]9 AfiRS(121,]M 50.FT.) 12TH ST. THE LEFT HAVING A RADIUS OF 20 FEET; 1mHU5 PROPOSED R/t AREA ..._.__.......___.._..._......._._�05e ACRES(2s,193 50.R.)) THENCE ALONG SAID CURVE THROUGH A CENTRAL ANGLE OF 89'34'LIN .AREA w LOTS IND OPEN S5AOE a.ACT'Ka'Y)__...._.221 mans(se371 SO.FT.) MR HAVING AN ARC LENGTH OF 31.26 FEET TO A POINT ON THE EAST LINE OF OPEN SPACE(TRACT•KA'K)VIVA 26.471 MT.(0.61 ACM)0224 OF SITE NSA MOONY LOT MN FELT JONES AVENUE; AREAw PROPOSED R/• ..__�_25.195 SLST.(0.58 ACM)021i OFi SITE AREA THENCE NORTH 00'33'45'EAST 90 FEET ALONG SAID LINE; THENCE SOUTH 0033Y5"NEST THROUGH A CENTRAL ANGLE OF 9025'S8" 70 HAVING AN ARC OF 31.57 FEED z THENCE SOUTH 89'52952.I313"EAST 94.29 FEET;THENCE NORTH 003NOTES 3'45'EAST 94.40 FEET TO THE TRUE POINT OF a BEGINNING. C 1.NO DUPLEX S1m1C10RF5 Ma PROPOSED TO BE CONSTRUCTED ON THIS SITE. (ALSO10-86,RECORDED UNDER RECORDING CEL 3 OF CITY NO.8609229011.)LOT LINE ADJUSTMENT NO. VI a SITUATE IN THE COUNTY OF KING,STATE OF WASHINGTON. VICINITY MAP OWNER / SURVEYOR / ENGINEER NO SCALE OWNER: NANCY BENNETT 2612 JONES AVE N.E , RENTON,WASHINGTON 98056 N.E. 28TH STREET CIVIL ENGINEER: ROBERT W.O'CONNELL,Jt. P.E NO.18093 SURVEYOR: KEVIN VANDERZANDEN P.LS. NO.30427 J.14.T' 2'8" • FIRE HYDRANT IL 1,1a7 CURVE I RADIUS I LENGTH I TANGENT I DELTA . ■ . . .Cl 55.00' S0.59' 27.24' S242'07 a C2 55.00' 24.14' 12.27' 25'08'{9" • • • • • C3 55.00' 37.62' 19.58' 39'11'36' 40 0 40 80 $-' a i3 I ••••-•••.••••.._• C4 55.00' 35.52' 18.40' 3700'13" SCALE IN/ ET S al z1 C5 55.00' 22.87' 11.60' 23'49'18' uB I I 50'Cm Jo''.4 C6 25.00.A 1 11.97' 6.10' 27'26'21' �'`� 1e•RR N 89'43'S9'W 517.18' is A 0 ; r F •54.29' '0' 60.00' 3 - 80.00' 90.07' -f �.8• 247.83' paKWA 30- I I 444..JJJJJ �0'C- 2e FIR 15'CITY OF RENTON 2• y UnuTY EASEMENT J GCS' • ss$?'. o 0 LOT 1 m w A=TO 21'12"I I •v0..6S..0. OS A-2 R=s y..c,Y+ WETLANDS (TRACT "A") ................... I c 2 I. 3 L..1:: , ,,No' A-13.05'32' 26,078 sq.ft. ,..... 0 NOT PART OF 5.866 sq.ft. Qom 5,891 sq.ft. P m 5,882 sq.ft. P m 7,3777 sq. u N 29'42'06'E %41 L=H043\ 8 THIS SUBDIVISION 7, r, z 25 ,D.m 6.52' TRACT'Xt "_3 __._...._..... iG=74'46'S �5 393 sq.ft. :;;•: ,•;;;:`: A=9025'SB' 10'HIDE PLANTER/z 5• q a m = aaTARY SF,.NHS Z z UTILITY h SIDEWALK R-25.00' Up ' w g I R=31.57' y A-4 geN.tAr (4)in 3 L=31.57' 8 EASEMENT + L=32.fi3' S• =VI -�A-7 D Z I N 89'52'13'W 94.29' 0 60.03' • 60.00' 60.00' 20.68' w ) :-5_ 6 a _ `� 4� N.E 26TH PLACE 0$ I 2 zs - - R t ��° _ N 8952'13'W 421.94' B. _ _ _ zi P ` \t rot msttA T. umm PnE >P Z �o ,®� 's .4s 3sz.so' �a° RIGHT-OF-WAY z �- 'o•m S 3.zf: 3 O 1 0 �4 .p 25,195 sq.ft. _ , t W OmnY POLE 8 + 1 0.`4iA` ,� . , 4 IV Ott CF RFMON UTILITY E91 r n - I. 68.75' 68.75' 60.75' 35.54' C61'� y Ltp tuE _ _6 _ N 8959'33"E N 895213'W 94.15' T & summer stm i WI• 20.OD'02- r CS C4 S739 WATER EMT A✓>T0• 68.20�*�z ¢ M. 3' =31.26' LOT 2 10'WIDE PLANTER/ Se -, �"IF II' S m UTILITY&SIDEWALK w 42• 4. ....•.,.._.G w•••,• ' EASEMENT 0RM8AY S 0. wo 11 °' 10 ' 9 X 8 7 w 513 30 „ • 5,773 sq.ft. o - 5,762 sq.ft. o BDm05ci50 q.ft. 5,603 sq.ft. 5,659 sq.ft. "' 7,223 sq.ft. -,Y,1 8,9(4 sq.ft. n NOT PART OF m i s nr sHOR o e THIS SUBDIVISION • ^ 10' P FOR i h o SLOPEE PROTECTION z g _ L 68.75' 68.75' 68.75'- N 84'S9 33 81.00' z 75.00' T 86.35' \517.62' SUNSET iiii.L.S .77 ' 1 f \ 331.....6 / 23 \ 22 I 21^ 20 I 19 / • DATE: SCALE: 12/05/97 I 1'=40' r/ • — a PRELIMINARY PLAT OF _— a`1 °w SHEET INDEX . — 9Z - OWNER WHISPERING PINES 0 p i I 1. COVER SHEET OWNER: NANCY BENNETT En 2612 JONES AVE.N.E. PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 3 (I) RENTON.WASHINGTON 98056 • 2, SURVEY B d OWL ENGINEER: ROBERT W.O'CONNELL.JR. P.E. N0.18093 3, SITE PLAN O a. SURVEYOR: KEVIN VANOERZANDEN P.L.S. NO.30427 ' 0_ 4. UTIUTY PLAN 25. ,GRAOIN�O PLAN- o NL LEGAL DESCRIPTION PARCEL 3 30TH ST. ; SITE 9 F w 0.L+J Q THAT PORTON OF ACTB 255,256,257,275,276,2]]OF CD. 4 W a Z�i TRHILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO.4,ACCORDING T C+ - U)LL Z TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS,PAGE 82. N}Z Ld Z RECORDS OF KING COUNTY,WASHINGTON,DESCRIBED AS FOLLOWS: ` Q X BEGINNING AT TIE NORTHWEST CORNER OF TRACT 2)): '^ BENCHMARK >z d U Z THENCE SOUTH 89'43'59•EAST 114.44 FEET ALONG THE NORTH LINE OF WASHINGTON A C)M N Z I SAID TRACT TO THE TRUE POINT OF BEGNNING END.6•ROUND CONCRETE MONUMENT W/NAIL IN CASE U�=Q THENCE CONTINUING SOUTH 89'43'59•EAST 517.18 FEET; _U SOUTH G OEM=239 77 Z THENCE SOU 00'34'06•WEST 221.97 FEET TO A POINT ON THE SOUTH + cc d 3 UNE OF SAID TRACT 255; THENCE SOUTH 8959'33•WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF ST' TRACTS 255 AND 275; OMR THENCE NORTH 00'33'45•EAST 80.05 FEET: THENCE NORTH 8952'13•WEST 94.15 FEET TO THE BEGINNING OF CURVE TO II • THE LEFT HAVING A RADIUS OF 20 FEET;THE s = HAVINCE ALONG NG AN pRCSAID LEEN CU OF RVE THROUGH6A TOC A POINT ON THE ANGLE OF BEAST UNE OF S y DATUM JONES AVENUE; - THENCE NORTH 00'33'45•EAST 90 FEET ALONG SAID UNE • U ` CITY OF RENTON THENCE SOUTH 00'33.45•WEST THROUGH A CENTRAL ANGLE OF 9025'58• N HAVING AN ARC LENGTH OF 31.57 FEET - THENCE SOUTH 8952.13•EAST 94.29 FEET; THENCE NORTH 00.33'45•EAST 94.40 FEET TO THE TRUE POINT OF w BEGINNING. aD OB (ALSO KNOWN AS PARCEL 3 OF CITY OF RENTON LOT UNE ADJUSTMENT NO. S F•I 3S 1 010-86,RECORDED UNDER RECORDING NO.8609229011.) h' F.W ap SITUATE IN THE COUNTY OF KISS STATE OF WASHINGTON. VICINITY MAP ND SCALE g. SERVICING UTILITIES COMPANIES 4•II e a PUGET POWER: WASHINGTON NATURAL CAS N.E 28TH STREET I 10 0 40 50 -� 319RENTON, S.THIRD STREET S. WA STREET - - - - SCALE IN FEET RE25)4 - 98055 (425)RENTON,WA 98055 _ (I25)455-5120 (425)382-7858 :••.--..._. • .._.. rg USWES5 CITY OF ENTON: 31 P.O.12480 200 MILL AVE.SOUTH r eC a SEATT.E,WA 96111 RENTON,WA 98055 I NTT RENTON 4PPP® 1-800-244-Ilft (425)235-2520 I a aE RENTON LOST 1 I SEMENT-.1 11- .Y \p\ �aaTq ' i 33.3_02d46 1 5,891 a 3 )'3n FAIL I \ WETLAND(TRACT"A") 1'°.8 PROJECT DATA NOT PART OF 5,866S.82 THIS SUBDIVISION "- 3363952551 • EOSIwG ZONING ....._.___........................................_..........SNGMT MAT(R-8) I v II / SITE ACREAGE ZONING ------ ]macar E�AusaT(R_°) �A ,T.soLw TRACT 1�X• �C-4 "NR@ m C WBE PLANTER/UMW NK (E9 -_ _�- 9 AVERAGE LOSE __—___— e.1A sp.Er. Z A a:.�1 m —_ ..................__._..__@so3 6a.Er, j N.E 2fiTH PLACE / \ ROADS WBE HUNTER/ D,M,r @ SOM.MI Zg eo --- LOT 2 "• • I 3343902965 a Il TO 9 B 7 6 5 3,]]J eREH. 5,)62 N.I1. 5.)50 488 5,603 50.FI 5,659 SO.PT ).T2J 50.R 8.914 50.R • g LOT SIZING THIS SUBDIVISION ':;�st. NOT PART OF IV WOE Esu'r FOR �...._•..•:[i - r AOVE aRoiEcnOx GLOSS SIZE AREA MA)................................. ...........2 79 ACRES(21.364 So.FE.) ' I \ 1 VRN LOTS ND AREA .........(TRA..._-.—_._...-.--.221 ACRES(25,195.2 FT.) AREA w L015 AND OPEN SPACE(TRIG-..26.4•1_-.._60 ACRES(96,102 SO.FT.) LC LOT(TRACT-.ex-)AREA—._..24aI SCUT.(a w ACRES)Bea a sot AREA ...60 FEES ::4::•B3936 I . / LC..LOT WIDTH _._-...._- --... __-_. . MCA w PPOAOSEO R/w ._._.-__...25.195 503T.(060 ACRES)0.2,Z OF 6ETE ARU. - — J I \ 23 ` 22 I 21 20 I 19 / 18 z 3;i{;19i)3d6i OPEN SPACE (TRACT"A) C \ 1 I I — \ :. ;:3<.4:-RR) / GAG IN PAT — (o.z or TOTAL Ur®AREA) 3343BB3ii3B NOTES 24 • \ // a 1.NO WPM STRUCTURES ARE PROPOSED TO BE CONSTROCTO ON T.SITE. 1 g A-NNNNAA PRELIMINARY PLAT OF • $, 9 E.7 WHISPERING PINES LEGAL DESCRIPTION PARCELJT• THAT PORTION Of TRACTS 255,256,257.;215�276;1]]Of CD.y H S LAKE WASHINGTON GARDEN OF II IN90N NO.4.ACCORDING VJ� IJ �n PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 TO THEDPUT045 THEREOF RECORDEDSIN VOLUME N OF PLATS.LOGE ez. RECORDS A KING COUNTY. DESCRIBED L S.PAGEFOLLOWS, BEGINNING AT THEE'0.111NV{SL I1(1 JN D6:TRACT 277; 8 I lOC TRACT TO89:4 TRIM EAST i,14:�E1ai. G:THE NORTH LINE OF a. ® _ N.E. 28TH STREET _ ,PiMN THENCE CT OUTIE SOUTH 89'COF,%3EORMMI7.18 FEET: 1HENCE'SOUTWO074'Oi'V•E'Sr221:9]•FEET TO A PONT ON THE SOUTH d LINE OF SAID TRACT 255: THENCE SOUTH 8959'33'NEST 517.62 FEET ALONG THE SOUTHERLY UNE OF TRACTS 255 AND 275: O N • IC PIASTE i 42 R~ �tl 94/ THENCE NORTH 8952'45'EAST 94.15 FEET: THENCE NORTH 095345 EAST 80.15 FEET TO INC BEGINNING OF CURVE TO 9 F Z 5's/r le la 5's/••uTlun[91Y THENCE ALONG SAID CURVE THROUGH Aa THE LEFT HAVING A RADIUS OF 20 •CENTRAL ANGLE OF 8914'02% • Q n` HAVING AN ARC LENGTH OF 31.26 FEET TO A POINT ON THE EAST LINE OF zCLaz3 0.a z �b p=py JONES AVENUE a W $Z MPG. E: 3O 0 SO 50 THENCE NORTH 0033'45'EAST 90 FEET ALONG SAID UNE: 11 CC Z m __-._— gg MT) a¢ SCALE IN FEET THENCE SOUTH 0013'45'NEST THROUGH A CENTRAL ANGLE OF 90.25'56' HAWNG AN ARC LENGTH OF 31.57 FEED W Q So ~ - THENCE SOUTH 8952'I3'EAST 94.1E FEED. ' N Z W I^Vj THENCE BEGINNINORTH0013'45'EAST 94.40 FEET TO THE TRUE POINT OF / 3J43902180 R CC !`I' S 1 6° PROPOSED ROAD SECTION 33439ortet 3 010- KNOWN AS PARCEL 3 OF CItt OF RFNTON LOT UNE ADJUSIMOlT NO. a J• N.T.$. 010-86.RECORDED UNDER RECORDING NO.8609229011.) ti Y. _ qJ i ap.OIL M.nx 15 \ 0'ZI Ak 9UATE IN THE COUNTY OF KING.STATE OF WASHINGTON. 0, `y I,�i ___ if ¢� oe _.1W 6v'• -tl \ ` 11 - °8 3 J902845 y `.-./ • 9 L01C ) x` 0n 1 S� .Y. I#l 5 V \\\\\ I.E M�_.. ; D° I u .; r i r r 2WR5RL \�_ \,- �. — 8 I I I 1 Ste '_. la ;LOT 1; � 2 . N!yOT PART OF /;� 41 I \ I J L. a� 'ri",'rii"�` TRA8 WETLANDS { THIS)SUBDIVISI a LoT1� LOT 2 g Lomas Fa ` Ra ' 4.,, A =1 a66n 50 I E H; 1i0N.., I I I\ I I I. a� - 3343902061 z 's --- �� i':,= .xl I I I ��TIN 1 /` , _1 S A S ° i 4j 'I J_ _ , _ o U R'. .E a. k �,. xi. ,.9 L J L J L\ _-J L� �� A a+ '. ,k:� T.o�_ �0 / E ----G. RfF• ��5— xassrlr• -eO•_°— =>`^ a,_tluaa`ia�L++� . I`/ as `7 O �� .14g 71 '- J? o L: �,;`k 1.E.26TH PL zsI �`t'• • l \\\:��_-�i\ _� .`•j'� �Q, •6 i a I _ N ena7r W .»•�L'�^° R W AREA \ ,' �� 't/� \✓ice M1 AP.0 ,,t _ c • m.195 m FT\ � , \�� \ ��/�\lb I 55- �'' I i• .� _ / F--- _ m- ••� APT`_ _ --�� Iii 11 '.: B , J?.I4$f _ Lm- -qi i 3343902840 r--- -1 r--- ---� �`R^ -'-1 �' -� �9''", ��-1� r I g \\ f '""v NOT PAR 0 I 1 1 I I IN 11 I I N. i �5. _ -� \ "° $ _� \ LOT 6 LOT 7. LOT 6• I LOT 5. I \\ I I I PHIS SUBOI SIO I LOT 11 1 I LOT 10 .I_ I 10L 9_ INI_-I• I �\ til I, E1asF\ 1 kIsartI1a,�1R yiaTm'F-3 11a FR_�,I_ _.=°°ws4� I IT, m Fr I I nw4 m Fr -/I. \a ,nI9k ' �;- ;•= LOi 2 I I II i '•`gin 1 I\I -. I I I I --J '� m,a,/ ,�/ 3L392120 J 1 J Ds 3343E 638 i _ \ 'I ' g I II 1 J343903641 1 \ 23 t 22 ?i ?�I -I- I ---I ----- --- I iI /' I I 3343903639 i 1 �_ I 24 \ ` I I ry i' BENCHMARK • LEGEND ®MD.6'ROUND CONCRETE MONUMENT W/NAO.IN CASE \ OWNER ELEV•239.77 • w PROPOSED WATER UNE VERTICAL DATUM °MN°E 2612 JONES AVE.N.E 4,0'CO.y • E91B lza��•mauT CITY O'RENTON RENTON,WAS TISTON 98056 ,( 'YLN� O'OONN®3. 4��N r1e Sc RMI['I WATER DOSING WATER IRE OWL ENGINEER: ROBERT W.O'CONNELL.A. P.E NO.18093 14- /I L AT+D TR.•O�M MN —SAN SEWER— EXISTING SAN SETTER EASEMENT NOTE SURVEYOR: KEVIN VANDERZANDEN P.LS NO.30427 •''i• libi 1,. �' DJBV0.0Pman FM11 ns, - SS PROPOSED SANITARY SEVER UNE THE HORIZONTAL AUGMENT OF THE 15'WOE Ott OF FENTON MITT ai HaVTCPN EASEMENT SHOWN ON MS PROPOSED STE PLAN HAS BEEN ROOSED . ,6,8-2 WETLAND FUG TO FIT LOTS 4 ND 5.THE INGRESS/EGRESS HORIZONTAL LOCATIONS OROOP AT THE NORTH AND EAST PROPERTY ONES HERE HELD. •�-y MIRES W/lK/•ja A—NNNNAA • • — PRELIMINARY PLAT OF ;� N.E. 28TH STREET WHISPERING PINES 9 _ in 1N PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 9 a!n .]'Rn lo•n:env; I © um10.m c�i r H ,c ;s S.s/. r 0 R1 b SO O J0 60 NOTE ti was(rro) 'E I SCALE/N FEET o I t / a •0(.—_ .] - I ALL TREES TO BE REMOVED ALONG 2601 AVE.•N.E. 9 pW 1 • Z Z W Q 33439021E11 • 3343902180 ' R S 0-a z 3 I ( Ial I PROPOSED ROAD SECTION - aa • cow 1 �^( - N.T.S. . '0 0 W=Z .,,rt na I w'v"Ii' 3 3902845— ...9, Q •.71.......1 \.- a.e' •ai J I �Lor t I $ i i --- \aaa 15`I ,I y 'Ilk, 40/s•� . -__. ETnN SPREADER p I r ) -> ' �► � a TRACT.'d 1I I - 1 m:�LOT7� 1 '� LOT 2 LO l I L. 4.. F r•�.♦t9 ti. ` WETLANDS . ',--- ��•cC I amp xi rr .1.. asap sn rr amp ea.� I ].sn-a v: ,so .1 ''I t0•l I I� I I ' � cam•., _p ]� 3343902061 —__L,; I�! "7„."� �zas•I >y I I \ 1 I r �r� .�`>♦•. �-- __ �i •- i I sne ME 64N I 4 I I �, ``` \\—-\ z� q " `i.`•'��.•,r ¢ I+\ N 62.62.12.�wOm) L L J L— s&L—J L - • i 8 p �F 3g 3 z? �;> • 9 a 9oe w"Lfi7H PL. k NI a �\�\ %mom—� �i� [Fz ��I� !1 'a d'i 9 _ . rlr. ry9`` ' .:.Rni AREA\w- �� \ (~i \fir w � id �• C)a € ;r., nor i • ■roi ' . • \ .;� r¢1 wts sai] ,,...:., ; — m_ ��--L�— i �a 15. 71 _ _:e,i I• I "rm.A/ 3313902840 -1 �>\asp1. 1 �T p \ - \ I I Tm Dates � y d' r ”e :, I \ I I r. \\ s6 N I i `"I r_—i \\ p oS : Th., _ ',e6A`i�i 1`I I ,y 2'1 \2 I LOT I LOT 0 I 1 LO�.Y_� I� LOT 8 LOT 7. 1 I LOT 6. LOT �� \\ 4_ I 1I `'� I aTm aa1FT� I a1 mes so. 1 Il 11 ""w 1 •�E 'xi rr -aps"' 1 .. T. s sa rT 51 aat4 S.FT \ I '.:---'• i. )'_ ____-' ; I I �I�YI s �', I -�.. -.._-d —" I I • I /� t 3 "�"�" b'�': ;� ,• LOT 2 ` 1 1 '1•� ="-,2'- I Iy I I -- / I ^�3ya39GznD dd ;,e i masar'Y, YL J Q� w•asa� /� 6� `I I — ,x sr.T s:m,.a:i a L ----TJ L---- --J` L'— .37 I __J L= _— J --.p."..e,•r Rv -- , Ira a RCN pcorr n:":lawn;i . "' -p.DA4 r NY-aaa A.:1M jDpSpNp Lapp'VC — —— r ,P120 flail 264 — -_, _— 254 04a. '- - LEGEND 1 In / -� \\ W PROPOSED WATER LINE W,A� EXISTING WATER lNE am / T�..".......Neq.WAtaR . —SAN SEWER— EXISTING SAN SEWER 1 - P. SS PROPOSED SANITARY SEWER LINE ��N, J T zv,.p.pF • AA-2 WETLAND I OWNER 1 1 OWNER: NANCY BENNETT 1 ?' Ts-'.'nue .71-s t�L,,,,�� 2612 JONES AVE N.E. 1 • corm..24am RENTON,WASHINGTON 98056 I 24e ` � SURVEYOR: RENN VANDERZANDEN P.LS N0.30427 SW,r�9.,.tea I °MHO SS 201 I 421E E • p S�O'CON4,� I 1 �O n ff• 0,0,.. O:l DOOM a f09{DNTS .y r� ro• pQ4®mpm snm as NITS, m , '`,I` L AND 1r n>:B g M 9 LPN N2 capm]:.® R. 14m 3400 WO OwRE9 0.T/pa//"j DROOP = N.E.26 PL A—NNNNAA • k m 5N PRELIMINARY PLAT OF LEGAL DESCRIPTION PARCEL.i...2 WHISPERING PINES 1HAT PORRON Or TRACTS 255,256,25J,2J5.2J6,2JJ OF CD. HRLLIAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO.1,ACCORDING I Il i a 9 • TO THE PIAT THEREOF RECORDED IN VOLUME 11 OF PLATS,PAGE 82, cn PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 RECORDS Or KING COUFsiTY.WASHINGTON,i OEScRIBED AS FOLLOWS: N 1 ES7 BEGINNING AT THE 3.59.EART t vT.44/EtrirCJ 2TH THENCE CT SOUTH 89YJ'S9•EAjT014.BEGNY-L: THE NORTH LINE OF.' ® _ N.E. 28TH STREET — SAID TRACK TO THE SOUTH 89 T OF"BEASI G„ THENCE CONTINUING SOUTH 89'43'S9•EAST 5I7.18 FEET; iIENOO S.60 ACT 25"WEST 221,97 FEET TO A PONT ON THE SOUTH UNE OF SAID TRACT 25S THENCE 255 SOU1H AND I 8959'3JS;3•WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF TRACTS W THENCE NORTH00'JJ'45•EAST 80.05 FEET N THENCE NORTH 895YI3'WEST 94.15 FEET TO THE BEGINNING OF CURVE TO y W HE LEF HAVING A RADIUS OF 20 EET Q Z W Q THENCE ALONG SAID CURVE THROUGH A CENTRAL ANGLE OF 89'JF02 }d d Z HAVING AN ARC LENGTH OF 31.25 FEET TO A PONT O!THE EAST LINE OF > Z W JO 0 •TO 60 THENCE NORTH 00'3345'EAST 90 FEET ALONG SAID UNE CE}K Z CO ZO /RRL NR.AKT SCALE IN FEET THENCE SOUTH O033'45•NEST THROUGH A CENTRAL ANGLE OF 90'25'S8• Q H HAVING AN ARC LFNGTI OF J1.5]FEET; IA Z W CD Z I THENCE SWTI 8952'T3•EAST 91.29 FEET; -N Z W / _ I THENCE NORTH 00.33'45•EAST 94.40 FEET TO THE TRUE POINT OF W W=Z r / 2� 3343902181• 3343902180 BEONNING. � F III (ALSO KNOWN AS PARCEL 3 OF CITY Or RENTON LOT LINE ADJUSTMENT NO. } D. 3 yyI 010-86,RECORDED UNDER RECORDING NO.8609229011.) e Zal _�___ F�� `NE ON 11A�wlt[FEK4��Y:►f M m'ASA"• \ \�\\\� nA_I SITUATE IN THE COUNTY OF KING,STATE OF WASHINGTON. IreNE.Ar.". E J 902845 '' ` �.../ I�fw� -'-'..\'' \ 3Y u+'ik \�\\ NOT—PART OF \ \\ g . [T.z 2 1 •$iic smomr-ON / • •ho -1 •i Ili * teli5u.., ..-. IKKt 3343902840 0 AYE �$' \ \ s � \� �—f�� :� [ 1 ii t°1 1 .17 zip D NsoN k' 1 1 ;\ • PART OF -- �� 270 7 1 i g i $33439 \ \ 9 I I II 1 23 \ 22 21 20 19 / 18 g I I 3343903641 \ a . / TIR1IN/°fib I II \ .... I3 090 v+nnRY SWFR 1 ,JJIJ902803 / CATCH I/T:- 3343903639 14/ I NIK.,oRAKT I 24 \ \ ,,,, 294 VI A/ • \ / LEGEND iw PROPOSED WATER UNE BENCHMARK WATER COSTING WATER LNE ®END.6•ROUND CONCRETE MONUMENT W/NAIL IN CASE aLl,.239.77 —sAN SEWER— COSTING sAN SEWER VERTICAL DATUM SS PROPOSED SANITARY SEWER LINE , CITY OF RENTON • AA-2 WETLAND FLAG 1 _ A—NNNNAA • • ra ;fi. i r ,-_,, PRELIMINARY PLAT OF c elf i, �• WHISPERING PARCEL 3 OF CITY LINE PINES NO. 010-86 a d N.E. 28TH STREET • _ y�� . O- - • f:,,q„v,: O. a • .. 9 LI z o z ¢ • ,4,n E9rr S.s .,e• M. S.sn ure,n" i aaaz3 z >-Z m Z _-___— �' 70 0 60 O -� P'I''') ki SCALE/N FEET �zw}Z I o- .. - • ¢3 z 11 PROPOSED ROAD SECTION 3343902181 3343902180 a e- I N.T.S. , g • 11 t. �I, — ==— ;_. ; �\ a 1 �,�A' ,a „: .a•�'i E. I 33 J902845 1y� "r., i \ - .� aC - \\ --- 'LOT 1' § I/� �I1 Is.II \y11� �� \� �. il ;, ;� ,-�.�• .- T_IJ jJ :/ (diti1_e Lint ., 1 I MI \jX iw�tt�.�`` MO'. ,., WETLANDS ROM s.sAmf • G..Z !I �I aem sn Tr r aeeo en n aeee so \I -Tn a F �'•I \ g z s` a I r x L;Ma.�:,,7. ....sne-vm A I 1 - I\I ••.�f' • ..` �� _ JJ43902061 U0.i ¢0" Nv SUER 1.1 hYP) = L J L J L\ ---J L,', „► �_, w� / •y.-v; as14 _ a `€ �\� xearor,r. ,tl„ERE ruxrze �� 4s _ ' ram!� - - 1s�e_ Ctl _- m .. . -:,.,,--- ��4 s%te• 33439D2a40 r--- -1 r--- -1 T-�La.., 1 f �� /�. N.c°' fL—y \ r- 10, �,..-- 1, y l `1i ,,.r; \ 11 antes w1M 1 ZI a itorg i_ 1_ate;m-n- a al iea di»ai -aascm -1•. T,-°:rr 1 I 4914 m FTT m � \ ➢311 a I iN ,a l--c -ill'• I I I I;.I s,w,,,- .,3i II I \,_-.I-n--'-- I I 1 �\\ ' lo6 1"`er:"e°�x I I '" •7:. , LOT 2 "l� 1 J _ " s -- `� Jya39 z,zo I\ 1 I I �xw I I o I I I- I I\I �\ I- I - I c xv „ A $ L ---- ' L---- -LH Lsa".2-.=�,: J L _ J L— DOOM J -�tl�� nr o J — —�/� 1; P,' , _ _ —ar--- --— — it tft u �,,, ..s. ,_-snr-.,n,., ' _i 7. 7 ' S S 3M39 3B 'I �� I \ , 4 II 23 1 2? 21 20 • 0 N a I —4- I -- -7 ------ ---� 3Jg9036tl "' I —1--j --- — ,1 is :;I sI NE wv_i I `1 ;J34390280J I ' -1/ I I 3343903639 I 1 f wJ 1. ____ I 24 \ I / ° LEGEND \ OWNER / = OWNER: NANCY BENNETT W PROPOSED WATER LINE 2BEST(IN,WASNINCTON 98056 11, 1Ra owl nYmB • WATER E%19PND WATER lNE AND 4®uleeR� �'E•r LIVa ENpNEER:ROBFRT W_O'LONNNEIy,R. P.E iB09J I EIOS11Np SAN SEWERIIRVEYOC. KEVIN VANDERZANDEN P.LS. NO.3042] � / D�� .(, D1i(4tJ)TSB SSPROPOSED SANITARY SEWER TINE NE (4>s)Tn— AA-. WETLAND FLAG B winces i.'' 7 ORO11P um. men -Il _ A—NNNNAA ' hM w,.` r 4 ` �cc. �`'., 4„t„ 1 'I�I 'tip s I 7� /or..,\ `^' 1-. ...Q: . •-\ .� 4* 1`4 cv 0r •--• t+� zol.14 1-Io 1 of -..- = 6 y - • \ i O \ • a - - _ ...� n (0IA I N 2 �� \'��• a T� • P29 �v al a 41 4 iI 9 ' �� n„ 1587,5 i 1 1.: ' I i - \ ` a0` 13E,V. 2 .�, 3 822 COP" Z`: z 10 \ \ \ 'B� I s 1 m 4 G 1 _ 1 1�S 128.5 j•. j *' to b a5 p ' `301 ILO '30 ` I �I .� I{ \ •5\ 'P rJ i{�, D✓ N m sm '0,.6 .0, C FORM R pis- 4 1 F f N of In I �, /r Ir K $- L O m �. qZ 93 37 6 . 1 , a ., w U 1r I:. W a ---j -o . , .F • .'A $ 7 84 7=7. • 3 6 t 4 Q to l ' 4 -v 1+ 1 Ir.I .: !' Q ! y4 8 -PT B ,b,NE• �3 /3 50� �s/4 L°ti / liJ 6 ` m 8 g15 939 5t0 3 ss s.zl ss.oz SBL 63 �<t ioo_�r 'i I b0 5 I 0 9er `9I .I I III 12a 1 0 '\ ,S. 1 s,, e ��, R - r,_-- • 230 I a s5 �6 III c Ss 6 �' zg:. .9' M« oS _AoICI I - = ' '^S of W I �� ti'o �Ldi �- r ss .. Ss 1 �N-- W' ti• 9 =v r Ij M1T1Y4$ ft • 1NI P R.R-- CJO 2ram--- III , '1 RNER •I � 1 Fo - - $ =t a II I1 -.� '� 1hvr c1, I I !1 I1 11 1 i�� _ 50 71 l , 7 •�� _4 . • - 7501 "��;50044-`�-'-Q'. .e449 4,0 =I' a' ' � '`/ Si___J y , l- I,: I ,Z3 3e 1 I lo. 1. i , .. {�� N �,... r ,n .� OPEN .L I. 1 (AS 64. 62./51 - H - .�- ST.._.. . VE'^- -�28TH -sz��S' m _ _ , 77.3 76 60 - ;�.s , ��_, 1 0� m '20T.! - `�.ft' - --�� I f'-- P.073-77 i ,7 OP 1443 El rl r6� ./ /,s. 75 74.d2 �O - (L) h (6) (C) ti I 61j I Imo, c Si �•I7r •�H. , m / I / IIT 1 `"' /SAcf,i 190/ii �. I - -- / I •• .1 I! Ib % I _ /oe I 64 r--I T.[%59i /;.y o O 7 i • 2 25 -- BO �� `n I i 1 • �' / I •h `•'- I ._- �/i �i� T �o I �S' I 6 � I EC �I �a� �. .74, • If , ' Is. /� I _� _ V n i i 1Z0y1^ , x u e/ 67 �I 1{Q ` 4.: 1 ' `- 7�21� )' T-C. . 27 15 - • 27 10 ; • • �T r,4 �� ^rill !8o I 1 0=.I ''5'3. + _ • I 1 I El ao r i 1 I -SS i o I 00 /� J : ,.•` 26n S3` -• n o , �"i I I f b �] `" - 1 // --1 4. \ Y' 6L16 c.. s • /so m 1 e>- ••1 1 1 O 1 11 1 G/ >°�S`/ 2,I I ' s� 4� ' PTO off, ti' � /f 1 75 Ty ¢ -= dt7o4 31' N.E. 2 T. CT., �y 279 ; ail �7 of 1 IS 5 / vv 473s W.cs i �7 a 1 . j / '1 Nil �+ j N \ /00 23/? 57 2 1 ---- ^ y b ( 2/ P SS 1 1 1 1 ! .N ffP 5535J7 9/69 c. '' 1.-_-2 , o h ;ti . "rs3 09 g (2) S.P LUA-92-186 11 , 1 1 i I ' / z6 _r_^___�__-• [26 �� ft \ I� I�3 . q B7 © � /so 08 N r�o ) 65 /o0 112 I _____ (I) g (2) (3) 1 N . . '// j Io r 2611 lSO az 7vg 17oroi.s `� 2 .3 Z 1 25'/ Ds 6!/92B491S.P�20 8 26^� o;i`--.-7zo-=e; m 2 1, 2 / 7_ I^ I 1 1 5 __ , I 0.89Ac aIN2�Q9 d,; / ; (2619I 12 5I j oo�- 9.97 -r------- -� h r.c ao 1�_ zo_,a. `, (A) (a) �,^ 276 R �` ,1 1 40 237 o . ss 6 i %I rl\°o 17 �° N is 7 aq` 1 �I9 J 2 ;4 3zo -• 1 • 'IL ' I, Z cl O ~-- ,SP33-76 E OE h 2, t mn ZJI5n 1^• 8 --- '3 1. I.-3 (0) - `' /00 0 t'! ado 2 2.3 212.3 - I d��o- 251 ; ; (C) 105 _� /s /431.53 20 117 lissf 252.3 o uo.vs 2532 c.ue 25i.3 14o i 4•0 j lOd7¢-I ; • `-_ 150 320 1� `�� (A) P 237. 22 0 20 `^ 19Zi �bB •'• f $ Q a 8 ,ti 2 25 ,, L 1, nc,•,vt7Y cetelE,t- o ` 2V,11 r7 $1 , 71. Azs IB) 02�9, 117J iy� *s r / -0 I]ZaL S1Fi ------ - / R R 1 n to '� I 111 " , --N 2 , ti 4 :3 �r ��4 IIb� t`r.Jcj'',-� :14. h 25 4 2 I, . 8 ° A 24! 231 62 \ /00 Re A03 a I„, 71 •F" .I o -� \R tom. •� S.P ZO 75 a/ I�ir , a`• ------------- jIIIIIP . s - , 1 :�I - ) 25C3 VIN233 978 "25 °5 7 7i_e1 9' 4i IT 1,4 1 Z ' !a.i fi.?:, ;64 �. ��. \vrj W ® bJh2508 �' 6 * 7 Z .6 o, ' so �.{ 2.515�; Q, 1V 'T v.r----8--------- `- a4S Z 101.19 /o,58 e a "W�2B '�•b6 ^ �i 24 2E9 -----�_ ___ r -__ �2S)21 ^ �� e [ ---• 295 -- uj 8 5 - tr,3y U or331 roc.67 24125 Q 2430 2 01 0 175.2/ rar t%9s sg� ; ''c'-- ti ': N , ye 3 �. C ItnI 2 419 �- ----\ O • � - ----- 2� o 0 243Z 27 , Q _.- i 7 W - 6 1a>7 - ------ Z r 25 o 1 : I O _ _ O 10,44 2 4 1: t !10 ; ,o.o...,..,,.r. 4a! , . , •°� o 2 41 134/9 119 r2 Imo- -� '$ 9 t' to ti L{-=-=, 27 m N I I 95 �,) zs az .sos= =i' {� 2d2t ,Lis-- 2,®Q ol.r9 a h S k '��3z 2f W T a',`_ 11. 017-80'^ 12411,0; (A) •0 --- ` ': ` ------ (A) 28 Y I \b ,ti�,5b - �� \ ------ (/) v qq B) m a;.-3 •U 3 t\ � �2 Rd 2418- C o fo v\ _ '9 s.P014.80_ yy` 12 13azy ti 1011/ ^ ,\ 10 * 14 �, W , piz7 le `', C in ( ; �.. V u 2 I� a m 3 Z 9 N C I' I 1401 m (I) O w2 18 :' �Q__-- 13434 5.P25-�6 29 3 7264 TR.A 12729 5536 0 -- ----I i� (6) •5� I 1 \> I T (C) 2c p1+3 W - rl,�--; 7---- - O I� (3)� 2E II -__ A (�. :n Q '0 1 1 3a01 z ^ {.� C417 Z ti 2 R i Q.) 0 1 IOSO@ --•2s184 -----rt73\. ,. I 00 o 21 1 III L 12L C 13 ,� I L .- o 70 1 Q i' `._. 1n - , 9843 NI I 28? z ' v ,j, _i ro,.27 . O ^ MGX I t Y I c" 16 S.P118 80/� W : I 7ER -_ I I 'o Li , 10,z, oN n, .. Z M o j1 111 I �� va p , O 10n M'� I - I ® m Y h , „ 'Z 1 S0 % I N 1 1) 1 I Q I p `: (A) (6)(--� \ b . ,.:�'. ` REN M M C r��'' 2 �2 Imo - SS t w v r.[.a Z )I� OEvsp1„pi-my/3 1 /34 1�'71 _ - 96 s\ {I i 195 7/; I, , r.!.32 E« M0 L[.7S ; Z 6> 756! 60.02 BroZ 8!.6 .?vol si7s 4 ro,e , 252.3 7z01 ,�.�z 5J c.91 I 27 � TH , - N. 24TH _ o N.E. TH T. ; t '' 152 ;- 139 ' • ` Ne____e 363 1 I101I 1 /01 ,t SZi- ��130 /22.9., 6Z 1 '��coi_ n 1 ''` 1 1 • n 1 1 j j IM� I to°O 12: - 2-101 2125 ,;? • / `n i ,170.: I f-- 96 � 11 II 8 I io (I I` B L m 4/Ac. o n1 _/ 1 ~ 1125; 11 N ^ti 1 ' _ -__- 2 rot.' f T11 50 -1-- - 0 0l• 1... N 252.3 -rl ' I P 03 91_55y,- .511 "tom - - 1. f f o?1� ��•� •. ° 1 11 I n W 10 1 Lit •e- R. i .7 6. - w W • Y °raa CleY OF RENTON ti o Z,14/64 ` 4= ♦ BOARD OF PUBLIC WORKS 1P,t re Jesse Tanner, Mayor June 1, 1999 NORTHWARD Mr. Dick Gilroy 1560 140th Ave.NE, Suite 100 Bellevue WA 98005 SUBJECT: WHISPERING PINES LUA-97-1355 PP REQUEST FOR DEFERRAL OF ON-SITE IMPROVEMENTS Dear Mr. Gilroy: The Board of Public Works members have reviewed and granted your request to defer off/on-site improvements (street lighting and fencing), subject to your posting a security device in the amount of$17,700 (150%of cost estimate)for said improvements. Be advised that the date the Board grants the deferral is the temporary effective date of the deferral, subject to the applicant providing said security device within 30 days, which would be June 30, 1999. If the security device is accepted the deferral then becomes permanent. If you fail to submit an approved security device within the 30-day period, the deferral becomes null and void. A sample set aside form is enclosed for your use. Please ensure that the effective date of the set aside is June 1, 1999, with an open-ended expiration date to expire when the deferred improvements are installed and approved. Once the improvements have been installed, then written documentation shall be submitted for the record and the security device will subsequently be released. The deferral will expire on June 30, 1999. You may call Paul Lumbert, Board Coordinator, at (425)430-7304 if you have any questions or need additional information. Si erely, - Mickie Flanagan u' Recording Secretary Board of Public Works cc: Board Members enc. 1055 South Grady Way-Renton,Washington 98055 (425)235-2569 H:\DIVISION.S\BPW\DEFERRAL\WHISPiNE.DOCF•acsimiie (425)235-2541 r7illo91 - 1351 'I' BOARD OF PUBLIC WORKS 8:30 a.m. Renton Municipal Building Wednesday, May 19, 1999 6th Floor Conference Room IN ATTENDANCE: Jana Hanson, Chairman Larry Meckling,Building Official Ron Straka,Utilities System Jim Gray, Fire Prevention Paul Lumbert,Plan Review Mickie Flanagan,Recording Secretary VISITORS: Dick Gilroy, Whispering Pines MINUTES 1. CALL TO ORDER: Chairman Hanson called the meeting to order at 8:30 a.m. 2. APPROVAL OF MINUTES: Moved by Meckling, seconded by Straka to approve meeting minutes dated,May 5, 1999. Motion Carried. 3. REQUESTED ACTION: • ON-SITE DEFERRAL,WHISPERING PINES,LUA-135,Jones Avenue NE and NE 26th Place- applicant requests a deferral of street lighting and fencing to complete recording of the plat. Action: Moved by Meckling,seconded by Straka to approve the deferral of street lighting and fencing, subject to posting a security device in the amount of $17,700(150%of cost estimate)for said improvements. Motion Carried. 4. OLD BUSINESS: • RIGHT-OF-WAY USE PERMIT, SOUND SUBARU OF RENTON,250 Rainier Avenue S. - applicant requests cancellation of right-of-way use permit due to the City vacating a portion of Lake Avenue South between South 2nd Street and South 3rd Street. Discussion: Tom Boyns reported that the applicant Sound Subaru is requesting cancellation of the right-of-way use permit retroactive to April 6, 1998,which is when the City vacated the street. Action: Moved by Meckling,seconded by Straka,to approve the cancellation of right-of-way use permit and to authorize the Finance Department to refund the applicant, retroactive to April 6, 1998. Motion Carried. 5. REFERRALS FROM CITY COUNCIL: None 6. COMMENTS AND ANNOUNCEMENTS: Chair Member,Jim Gray announced that he would be replacing Chuck Duffy and his alternate would be Corey Thomas at the Bard of Public Works meetings. 7. CONSENT AGENDA: None 8. ADJOURNMENT: Chairman Hanson adjourned the meeting at 8:45 a.m. �► • CITN _IF RENTON Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator January 26, 1999 Rick Pierce RTP Management 16709 230th St East Graham, WA 98338 SUBJECT: WHISPERING PINES PLAT UTILITY COMPLETION AND ACCEPTANCE OF UTILITIES REQUIREMENTS (RSTW 2730) C980300 LUA 97-135, pp Dear Mr. Pierce: As the construction phase of your project approaches a milestone, your project enters a new phase which I will refer to as Project close-out. The purpose of this letter is to highlight the subject areas in the final plat process. I want to let you know ahead of time some of the routine items that the City will require prior to Public Works acceptance of the above-subject project. All of these items discussed below need to be completed. Please use this letter as a check list to keep your project moving smoothly through the City procedures. Construction Concerns: I will be working with the utility inspector, Steve Pinkham, to insure that the project has installed ALL of the improvements, including street lighting and monuments as shown on the approved mylars, has a final walk through and sign-off by the inspector. This includes any punchlist items from the inspector and/or the City Maintenance Division. The construction permit for the project must be signed off by the inspector, Steve Pinkham, prior to completing project close-out. As-Built Concerns: The construction permit plan mylars must be checked-out from the sixth floor public works counter and updated or replaced with a complete As-Built plan set. All plan sheets, including those constructed per design, must be verified, stamped and signed as As-Built by a licensed surveyor or engineer. The mylars are labeled As-Built in large block letters and stamped by a PE or PLS. Submit an ASCI file along with your As-Built drawings. The civil drawings shall accurately reflect the construction activity. The civil drawings also need to show all watermain, sanitary sewer, and storm drainage systems easements which shall be consistent with the As-Built location of the utility. Once the above have been addressed, submit three sets of As-Built bluelines of the civil drawings to my office. The inspector will be reviewing the bluelines and if all is in order I will then call for the civil mylars to be returned. These final mylars must be submitted for our permanent records. 1055 South Grady Way-Renton,Washington 98055 f27 Thic mmrer rnntninc c119/-rnrurimi m.terinl 9f1%nnct rnner rmnr Whispering Pines Plat C80300 WA 97-135 Page 2 of 3 Construction Cost Data Concerns: At the same time the As-Built bluelines are submitted, the owner of the development or authorized agent shall supply the detailed construction cost of the public Water system, Sanitary Sewer System, Storm Drainage Systems, street improvements and street lighting on the Cost Data and Inventory Form (enclosed) and sign it at the bottom. This form is to reflect only those facilities that will be turned over to the City. An example of items that are NOT turned over are sidesewer stubs, water service lines and private storm drainage facilities. Return the original form to my office. The Bill of Sale (enclosed) is to reflect the items and quantities as shown on the Cost Data and Inventory form. Return the original form to my office. A maintenance bond is required in the amount of 10% of the grand total of the water, sewer, storm, street and street lighting costs as shown on the Cost Data Inventory form. A standard City of .Renton maintenance bond form is enclosed. The permit bond will be released upon receipt and acceptance of the maintenance bond, of the above documentation and final sign-off by the inspector. Final Plat Recording Concerns: I have scheduled a meeting for you and your surveyor to meet with the Technical Services staff and myself to discuss the final plat process. We will meet on February 3, 1999 at 10 am. Please check in at the Customer Service Counter on the 6th floor when you arrive at City Hall. I recommend that you pick up a copy of the Final Plat requirements at the 6th floor counter of City Hall. This is a handout outlining the general procedure leading up the recording of the plat. We will be discussing this handout at our meeting so please bring all of your questions and concerns. You may pick up your monument cards at this meeting. The plat drawing shall show the same easements and be consistent with the civil drawings. All storm drainage easements that are private shall be clearly labeled on the face of the plat as Private Drainage and Access Easements. Fees: The applicant shall pay the Traffic Mitigation Fee of $7162.50 prior to the recording of the plat. The applicant shall pay the Parks Mitigation fee of $530.76 per new single family lot prior to the recording of the plat. The applicant shall pay the Fire Mitigation fee of $488 per new single family lot prior to the recording of the plat. I. P f t<r Whisper-ing Pines Plat s t C80300 LUA 97-135 Page 3 of 3 It is a team effort of all of the above City Divisions and you, your engineer, your,contractor and your surveyor to get your plat to final plat approval. If you have an:y questions, please contact me at 425-430-7298. I will be working with you and your contractor to bring both the construction process and the final plat process to. closure. Please let me know if you find this letter a useful tool in managing your project. Thank you for your cooperation. Sincerely, " / (_, ,,L.,,,,..1,746/e..___ Arneta Henninger Engineering Specialist Development Services Divisioni: .:::".,_:: _ :,::: 2;..s.:,,...,,,,,,,.:., ':-' ' .- '' ' '''''''''''' ' -5,‘-'-.N - - :,„-',, , ,.„.-, , . :, , ,-. , .,-: , --.._ .‘ ,. , : pc: Neil Watts t t BobMacOnie �� + File LUA 97-135 � � ,t ,- ` 4 • r „ ® CIT. OF RENTON NIL Planning/Building/Public Works Department J e Tanner,Mayor Gregg Zimmerman P.E.,Administrator CITY CLERK(2) CITY OF RENTON November 9, 1998 NOV 1 0 1998 RECEIVED CITY CLERK'S OFFICE SUBJECT: NEW ADDRESSES IN NEW PLATS TO WHOM IT MAY CONCERN: Please note the following new addresses assigned to recently approved plats in the City of Renton. You should add these addresses to your database. Attached new plats: Valley Vue Estates Plat P- C11 .. 133 Whispering Pines Plat PP- q1 - 135 Stafford Crest Plat Pc-a l- 1 1 3 Steigman Short Plat Pierce Short Plat 51tP _ qt -107, Sincerely, a)rt_efj, Jan Conklin Development Services Representative Development Services Division Telephone: 425-430-7276 #1 :utilltr 1 U;5 South Grady \Vag - Renton. Washington 98055 i i1�a(lar c::r'a iy ,. >3r St.." 1'INL'Luyil1WAi%1 I L.II / ' , / WHISPERING PINES • ( '7 ,j S . PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT N0. 010-8.6 LEGAL DESCRIPTION PARC(L 3 PROJECT DATA • S°"'9T. (', SITE THAT PORD04 Or TRACTS 233,256.237.27S,276.277 Cr C.D. Corte=TOO SarA7 MAT P~I N38 1AMS MCC.A9N0TON CAROCM Or EOM 01319014 Na 4,ACCCMC MC ramie 7o013 11/41 r..4.T(R-I) sr(ALTCWC 1.71 TOO al • TO MC RAT 1MACOr RCCP7DCD Pi AC II Or'P1A13,IAQ 6a. 1011 nppQa 6� 7: RCCORDt or AMCCOUNT►Irlt9.4cr01L O[St7asm AS COLL0119 / Ut.10.rt. pCON.NC AT MC M0777NCSr COM(R d TRACT 277;. 71M11>s7 IO7 1A61 34 rt. aD 71A'7KZ SOIM 6r4Yss•CAST 114.44 ff(r ALONG Di NORM 1M Cr ROADS SAID TRACI TO MC Muc PONT ar OCOIAAN4' T14[NQ NNM1AING SOUR sr4Y6s•CAST 517.16 r[CT: 6aV Lava - 471 v4A rrtT aA. M[71Q SOUTH 00.34'06•n[UT 211.91 CCCT TO A PORT O4 11C SCUM THEN Cr TAo TRACT i LOT SIZING THENCE SOUR 6973•33•NEST 377.s2 f U acne TIC SQ7D67SY UK TRACTS 233 AND 273:77¢NQ NOUN 0013'43•CAST 80.03 TUT; _ a.o13 67R AKA f1>'rA a.7.AOas(v1344 Ta n3 sr MrNE NORM 6917'13'KST 94.13((CT TO DC ECCDOO40 Cr O&M TO 1..M TA t AKAesro A8 ATfA _ .77 0177 27.1n 7a R.) TN((ErT NAWIC A RAMS Q 20 TUT; . A N Tan Ta •66;K((N1CY•6AY Au 7tl3(r4.171 32 f7.7 neat AIOMC SAID CIRIC DR101P4 A C[MMK MGM Cr 6974'02: - 1: O.7•La•t1 N1A �74.471-(447 AGO) (7s Or I.R M. MA\RT6 AN An 1771GM Or 31.26 CUT TO A PONE PI MC LAST IIIC Cr r.AA.loT.Ons 74 71T1 .10KS AMMO NNA TO T1.9Iatm a/M 7►111 an.(W ACM)6i.a C.'7A1 NgIQ NORM 00'33'43•[AST 90 TM ALONG SAO LMC; I7[MCC SCUM 00:W4r 11CST 1161C1/G1 A C1.11171AE AM(AL Cr 9O2Y36• _ ' MA9m0 AN ARC(CMGM Of 31.57 MT; 7..., Y� 77(NQ NORMM 0737.43S'COAST ia40►((07 10 MC 7741/C POW cr NOTES THOMX '� / 6COMRIG. L IO OI/1DI SiRIL1U[S/7C TR1aOim TO K C9.60a7CIP 01 116 70L L6 el' • ( _-- ot0a0 MOM S.mcccmD[D 1 L3N�C OTY Or roam LOT muumuu Na , •• 91UAr(N TIC COU14n CY 7P/4 STAKC Or 1TA9NG10N. • VICINITY MAP OWNER / SURVEYOR / ENGINEER • flo SCALE ONHCJt NANCY COMM 2612 A71iCS Asi.N.C. RLMON:7A3O4GTOM 96036 • N.E. 28TH STREET oLt DICINmt ROBOT IC o•00764RL.3L PL Ha 16093 33L39iit.-r SURLCY07C KCWI YMA[R/A/W1 P.LS. NO.30427 • • . a _ ii. 1 - I c ci 1 A4a�s 11�Mc9N I TM10?Nr 1 3z4iTo7• ■ r• -�•�� CT 33.00' 24.1r 12.22• 73-06v9' • • •-• ••+•• .4� 33L3962181 C.1 53.00' 37.62' 19.56• 3711'3r 40 0 40 6J . C4 35.00' 33.32' 16.40• 3roo'Is SCALE GY F££f i �I CS 33.00' 71-67' 11.60' 7349'14r i x r.. C6 23.00'. 1 11.97' 6.10' 27-26'1 x O 7P11A x,w- JyN/9.4Y3•x 577.16' IY I6 .��yr (3.ai. 7rffa00• �']J'1i.�'L-. • .60.00• 9a0r • J ►`,s' 247.83'11-qlM 3o. "fF u'on Of moot b J, '§ /Y / OQA� Uiun CASCY[Rr I �J.s• i` \ E I I LOT 1 w• I' 1O� w y ✓D u �O�q•5 71•ta•I b.°ep.� '0' �"-2 YfE7UNDS (TRACT •A') 33oa9626L5 ( }- 1., ., L...1• > A-1303.32- 26.07E aq.M. 1 r w§ 1 T.« 2 w- 1. 3 4 A R.50.00 1 /"?..- a � J,666 aq.IL P a^, 3,691 aq.fL P w 3,682 s9J1 7.377 p., N 29'42.06•[ L.11.4S _••... I NOT PART OF 8 $ 6s2 A-3 �:•:?'-?:7==+1 Or ITT xr. TRACT 'X�g THIS SUBDIVISION x _ = e.744e. �yy • sr. 393.a4L \ __ lo•TAOC PIANT(R/ 3• �' •(7 _A-s E. ..7 4i A.29:7436• Noun,!sOCTNEK R.25'ar 3 L� (rw.''''..ory �+ 1 R•7aoo' _ CASC11p1T�L l.3t63' `,'•�� A-3 A-6- 3.� 0 aA jw a: l.13L3 N 697713•9 /4.2r 60.03' 60.00 60.00' 20.66' •• 2\ 7.3' fe _ _�3 a >$ y" sr 4• 4' 44 s k N.E. 26TH PLACE of I , s \ ' e 1 ! N 69]Y13•M 421.9E - �P m.1o.• ,--,N .+- Lam'°?R ynunn7 L(ni7r- SI .4yd+ k 14t• J92.3v4� RIGHT-OF-YfAY c7 'p.a°\•i ..0 T1 QO 4 J a3.193 VOL �� • R ti'o7Y a R7i7u1 uni1T[_i 1-'•P' _imam_d T µ� 7 ___- N n9573T 7 F _ 1 • / M 69]2.13•• s4.13' 1 1673' 4673' 6673� JSx• C6 4• _ 6620 _ .sr34.01. __- �) T __'_CS- _C4 ,/,.4. H 770•a, i z 6 a.T.S Rt.+1. 9 1, T•31.2 LOT'2 S. 1101 ' /(S u UKr 51Jn A pinata/ rT`riix 'g7••w /�(/p / v�� 33L366-EL6 $ y uLxAOJIT 14} ' p161.T w•� 11 ^ io . fl In C'n B ;I:: i[ 7 6 y 6.914 49.f1. ]( I L rY 3.773 aq.n. 8 3.762 aq.IL g .7 1a.Zi�i¢fL $ 3.60033 SOM. 5.659 aq.fl. L.,^ 7.22J aq.fl. '. S;i i.;i:iu::is 130. I 74 NOT PART OF 7HIS SUBDIVISION § _ 7c 11P.s4►��o` /D o/ x `S-13 lo•Nt0[[su'7 rat '. U ` 1 �sca 4gtot(cnal =7 ••� . ! ��_^ 61.00' I 73.0e ( 3635 ....�. 7s WITS' 1 6R:73' --66.75'- 69.00• rl < 6`�'� • I N 64'59 33"E ` 317.62' 3 1. `.0.1N1 1 1 3343963E3E I 3343963641 \ :;;INSET F:Ei.i...1 i '• tyl • I \ • 19 6 23 22 21 20 1 DLiS 0'31 1 . 17/03/67 l I . ; 1 i CITE`' ,OF RENTON tfo .IL City Clerk Jesse Tanner,Mayor Marilyn J.Petersen, March 24, 1998 Robert O'Connell, Jr. 4620 200 Street SW, Suite F Lynnwood, WA 98036 • Re: Whispering Pines Preliminary Plat; File No. PP-97-135 Dear Mr. O'Connell: At the regular Council meeting of March 23, 1998,the Renton City Council approved the referenced preliminary plat application as recommended by the Hearing Examiner. In accordance with Renton City Code Section 9-12-6, a final plat shall be submitted for approval within three(3)years of the date of preliminary plat approval. Your plat will • lapse on March 23, 2001. By filing a written a written request to the hearing examiner at least 30 days prior to the expiration date, a one year extension shall be granted if the applicant demonstrates that a good faith effort has been made to submit the final plat within the three year period. If I can provide additional information or assistance,please do not hesitate to call. Sincerely, • an yn e s-en City.Clerk cc: Mayor Jesse Tanner . . _ Council President Bob Edwards . Fred J. Kaufman,Hearing Examiner Jennifer Toth Henning,Development Services Division • • 200Mill Avenue South.- Renton, Washington 98055 - (425)235-2501 /FAX(425)235-2513 • ®This paper contains 50%recycled material,20%post consumer March 23, 1998 Renton City Council Minutes Page 104 Comprehensive Plan: 1998 Economic Development, Neighborhoods and Strategic Planning Department Amendments submitted proposed 1998 Comprehensive Plan amendments. Refer to Planning Commission and Planning & Development Committee. Plat: Whispering Pines, Hearing Examiner recommended approval, with conditions, of the Whispering Preliminary, Jones Ave Pines preliminary plat; 11 single family lots on 2.8 acres located at 2612 Jones NE, PP-97-135 Ave. NE (File No. PP-97-135). Council concur. Vacation: Lake Ave S Technical Services Division submitted request from the petitioner for the Lake (Safeway/VAC-95-001) Ave. S. street vacation (Safeway, Inc./VAC-95-001), located between S. 2nd and 3rd Streets, that the balance of the right-of-way be formally approved by Council without further costs or fees. Council concur. (See page 108 for ordinance.) CAG: 98-, Mosquito Surface Water Utility Division recommended approval of Whitworth Pest Abatement Services, Control, Inc., as sole source provider for pest control consultant services Whitworth Pest Control needed for the 1998-1999 mosquito abatement program, and requested approval of contract in the amount of$19,909 for 1998 services. Refer to Utilities Committee. Transportation: Commute Transportation Division submitted proposed changes to the Commute Trip Trip Reduction (CTR) Reduction (CTR) ordinance to incorporate recent legislative and administrative Ordinance Changes changes to the State's CTR program. Refer to Transportation Committee. Lease: Cedar River Transportation Division recommended approval of lease agreements with the Hangar Agreements for Cedar River Hangar Limited Partnership to lease space for the purpose of Outdoor Aircraft Storage outdoor aircraft storage; and further requested authorization to execute future month-to-month leases for individual storage units within the City-owned hangar and for leases of airport property for the exclusive purpose of outdoor aircraft storage. Refer to Transportation (Aviation) Committee. CAG: 96-055, Corrosion Water Utility Division requested approval of Addendum #8 to CAG-96-055, Control Facilities Control contract with Economic and Engineering Services, Inc., for programming of Systems & Telemetry new control systems and telemetry system components for the corrosion System, Economic & control facilities project, at a cost of $68,753.92. Council concur. Engineering Services MOVED BY EDWARDS, SECONDED BY CORMAN, COUNCIL APPROVE THE CONSENT AGENDA AS AMENDED TO REMOVE ITEMS 8.a. AND 8.b. FOR SEPARATE CONSIDERATION. CARRIED. Separate Consideration City Clerk reported bid opening on 3/13/98 for CAG-98-021, New City Hall CAG: 98-021, New City Cabling Infrastructure (Low Voltage Wiring); nine bids; project estimate Hall Cabling $250,000; and submitted staff recommendation to award the contract to the Infrastructure (Low low bidder, EZ Interface, in the amount of $223 .1-68-66 $219,850.93. Voltage Wiring), EZ Interface CAG: 98-025, New City City Clerk reported bid opening on 3/13/98 for CAG-98-025, New City Hall Hall Active Electronics Active Electronics (Voice and Data Infrastructure); three bids; project estimate (Voice & Data $1,050,000; and submitted staff recommendation to award the contract to the Infrastructure), GTE lowest responsive bidder, GTE, in the amount of $989446-34 $962,280.43. Noting that the lower bid award amounts were made possible by the selection of less expensive alternatives, it was MOVED BY EDWARDS, SECONDED BY KEOLKER-WHEELER, COUNCIL CONCUR IN AWARDING THESE CONTRACTS AS RECOMMENDED. CARRIED. • CITY OF RENTON COUNCIL AGENDA BILL AI #: •f SUBMITTING DATA: FOR AGENDA OF: Dept/Div/Board.. HEARING EXAMINER Staff Contact... Fred J. Kaufman, ext. 2593 AGENDA STATUS: Consent XX SUBJECT: Whispering Pines Preliminary Plat Public Hearing.. Correspondence.. Location: 2612 Jones Avenue NE Ordinance File No.LUA-97-135,PP,V Resolution • Old Business.... EXHIBITS: 1. Hearing Examiner's Report&Recommendation New Business.... Study Session... Other RECOMMENDED ACTION: Approve Hearing Examiner's Recommendation 1 APPROVALS: I Legal Dept Finance Dept.... I Other FISCAL IMPACT: N/A Expenditure Required... Transfer/Amendment.. Amount Budgeted Revenue Generated... SUMMARY OF ACTION: The Hearing Examiner's Report and Recommendation on Whispering Pines Preliminary Plat was published on February 2, .1998. A request for reconsideration was received on February 5, 1998. The Examiner did not alter his recommendation as requested. The Examiner recommends approval of the proposed preliminary plat, subject to the conditions outlined on page 8 of the Report and Recommendation. This office notes that the conditions placed on this project are to be met at later stages of the platting process. STAFF RECOMMENDATION: Approve. February 2, 1998 OFFICE OF THE HEARING EXAMINER • CITY OF RENTON REPORT AND RECOMMENDATION • APPLICANT: Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V LOCATION: 2612 Jones Avenue NE SUMMARY OF REQUEST: Request preliminary plat approval to subdivide 2.8 acres into 11 lots for single family homes. Variance requested to construct stormwater flow spreader at toe of steep slope adjacent to Category II wetland. SUMMARY OF ACTION: Development Services Recommendation: Approve with conditions DEVELOPMENT SERVICES REPORT: The Development Services Report was received by the Examiner on January 6, 1998. PUBLIC HEARING: After reviewing the Development Services Report,examining available information on file with the application,field checking the property and surrounding area;the Examiner conducted a public hearing on the subject as follows: • MINUTES The following minutes are a summary of the January 13,1998 hearing. The legal record is recorded on tape. The hearing opened on Tuesday,January 13, 1998,at 9:06 a.m.in the Council Chambers on the second floor of the Renton Municipal Building. Parties wishing to testify were affirmed by the Examiner. The following exhibits were entered into the record: Exhibit No. 1: Yellow file containing the original Exhibit No.2: Vicinity map application,proof of posting,proof of publication and other documentation pertinent to this request. Exhibit No.3: Preliminary plat map Exhibit No.4: Preliminary plat map with grading plan The hearing opened with a presentation of the staff report by JENNIFER HENNING,Project Manager, Development Services,City of Renton,200 Mill Avenue.South,Renton,Washington 98055. The applicant requests approval to subdivide a piece of property into 11 parcels for construction of individual single family Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA-97-135,PP,V February 2, 1998 Page 2 homes. The subject property is located in the east Kennydale portion of the City. It is on the east side of I-405 near the N.30th exit. The boundaries of the site are Jones Avenue NE on the west,NE 28th on the north and . NE 24th on the south. The northwest portion of the site is relatively flat and has.an existing two-story shop building that would be demolished. The northeastern portion of the parcel has a Category II wetland and a steep slope of about 60 to 65 percent. This is considered an unbuildable area. The applicant is proposing to . . record a native growth protection easement on this portion of the plat. The City has recorded an easement for utilities through this property to construct its East Kennydale sewer and storm water interceptor lines. The 11- , lot plat was:considered by the Environmental Review Committee(ERC)and they issued a Determination of Non-Significance-Mitigated in mid-December. The City's easement comes in from the east portion of the site,goes east-west then turns slightly northwest and then north. It would be located along the north side of proposed Lot 5 and Lot 6,cross the cul-de-sac and then come through a portion of proposed Lot 4. That has been recorded by the City and construction of the proposed utilities is anticipated to begin this spring. •The applicant also requests a variance from City Code Section 4-9-5.D in order to construct storm water facilities down the steep slope and adjacent to a Category II wetland. There is a 12-inch storm water line to be built on the slope below ground. It would connect to a flow spreader that would be located at the toe of the slope adjacent to the wetland. It would be within the 50 foot wetland buffer,but it would also be within 25 feet of the edge of the wetland: The 11 lots would range in size from 5,600 to 8,914 square feet. This is above the City's minimum of 4,500 square feet for the R-8 zone in which this property is'located. There would be a new public street which is NE 26th. It would be extended from Jones Avenue NE to the east and would serve the 11 lots and end in a cul-de- sac. The right of way would be 50 feet wide at its intersection with Jones. It would reduce within the plat to 42 feet in width beginning where Lots 1 and 11 are located: It would include the required 32 foot travel lane with 6 foot sidewalks,but only 5 feet of those sidewalks would be within the right of way. The additional one foot would be in a 10 foot wide easement'which would also include utilities and a planting strip. That would be located either in the front yard area or pipestem area for the proposed lots. A storm water vault would be constructed'underground within the cul-de-sac area. The ERC assigned several mitigation measures to the proposal,including following recommendations of the geotechnical engineering study,and paying the parks,traffic and fire mitigation fees. There were also mitigation measures associated with storm drainage: (1)grading of the new street at its intersection with Jones should be accomplished in order to make sure the runoff from the section of new street is conveyed to the east side of Jones NE rather than have it sheet flow across Jones to the west side;(2)final engineering plans shall include the use of infiltration discharge design where possible;(3)final drainage control plans shall be .. designed to discharge one-half of the two year predeveloped discharge through the two year design storm,one- half of the ten year predeveloped discharge through the ten year design storm,and with overflow occurring when the 100 year design storm with a 30 percent factor of safety detention are exceeded;(4)final drainage control plans shall provide split discharge design to discharge the two-year and ten-year design storms directly into the wetland. Furthermore,the plans shall provide for the diversion of flows from storms greater than the • 10 year design storm into the Kennydale storm water interceptor. Regarding the variance request,the applicant would have to remove vegetation from the steep slope area in order to construct the storm water facility line as well as within 25 feet of the wetland to construct the flow • Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA-97-135,PP,V February 2, 1998 Page 3 spreader. The line would be buried 3 to 8 feet below the surface. Large equipment would be needed for installation of the pipe. There is no need to keep the area clear for maintenance. The presence of the steep slope and wetland area reduces the area available for the applicant to develop homes. The proposal for 11 homes is near the minimum net density that is allowed by this zone classification,which is 5 units to the acre or a maximum density of 8 units to the acre. The applicant has achieved a density of 5.94 units to the acre.The applicant's request for the variance to locate the site's storm facilities on the slope and adjacent to the wetland is in response to a desire to meet the minimum net density requirements,given the constraints of the site. In addition,the City's wetland ordinance allows the use of buffers in wetland areas for storm water discharges and storm water dispersion facilities as long as they meet the requirements and tests of the City%surface water drainage ordinance. It is possible to construct the discharge conveyance pipe dispersion facilities outside the buffer and wetland area;however,it could constitute a threat to downstream areas. The impact on the proposed plat,surrounding properties and the public welfare would allow for the release of storm waters at their natural location,disbursed to minimize channelization and erosion of the wetland areas and the buffer. Staff would recommend that the applicant revegetate the disturbed portion of the slope immediately following installation of the line. For areas within the wetland buffer,revegetation should be accomplished in consultation with a wetlands biologist,a wetlands ecologist or landscape architect that has expertise in wetlands. Pertaining to the preliminary plat criteria,this area is designated residential single family in the Comprehensive Plan(CP)and the zoning designation is R 8 with a minimum lot size of 4,500 square feet. Other plats in this area include Sunset Hills to the south with lot sizes of about 7,200 square foot minimum which were achieved under the old zoning code. La Mesa is located to the northeast with minimum lot sizes of 4,500 square feet. There are other larger parcels that have yet to subdivide in this area. This proposal meets the intent of lot arrangement criteria. It appears that the lots meet all the minimum setbacks,minimum size,width and depth. This particular project would generate about 105 new average daily traffic trips. The access would be from • Jones. The two lots that front on Jones would be impacted by additional noise and headlight glare. There may be a need for some measure of fencing or landscaping that could help prevent the impacts to those adjacent property owners. There are public services to serve this site. There are parks within a one mile area. Renton School District has informed the City that there is space available in their system. This particular proposal would be expected to generate about 8.5 students. In terms of storm water, about.7 acres of the site presently discharges to the west to Jones Avenue. The east 2.11 acres is meadow,wetland buffer and slope. The site is located within Zone 2 of the Aquifer Protection Area. Staff would recommend approval of this plat subject to several conditions: (1)compliance with the ERC mitigation measures;(2)drafting of a homeowner's association or maintenance agreement. This agreement or association would be responsible for all common plat improvements and also for the payment of taxes and Maintenance of the native growth protection area easement. (3) Establishment of the native growth protection area to be defined and recorded on the face of the plat. The applicant/owner would be required to adhere to City code requirements for such areas. (4) Revegetation of the hill slope portions that are disturbed by installation of the storm water line,to be accomplished immediately following the installation of the storm water line and the flow spreader. A wetlands biologist,wetlands ecologist,or landscape architect with expertise in wetlands to provide the expertise with regard to revegetation plantings. Robert W.O'Connell,Jr.,Olds Group,4620 200th SW,Lynnwood,Washington 98036,applicant herein, explained the various natural restrictions of this parcel and how they arrived at the locations of the detention Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA-97-135,PP,V February 2, 1998 Page 4 vault,storm water line and flow spreader. Concerning the width of the possible construction going down the slope,he stated that at its widest it would be approximately 15 to 20 feet wide. Regarding the two lots on Jones;the current access is steep coming off of Jones and rises very fast as it goes to the east. It will be dropped approximately 2 to 3 feet from where it is now in order to satisfactorily take care of drainage. In the area that is adjacent to those two lots where there is a 50 foot right of way,slope transitions must be made. The plan is for a stub wall to the north and a short rockery on the south. Neil Watt.;Plan Review Supervisor,Development Services,City of Renton,200 Mill Avenue S,Renton, Washington 98055,stated that once the final sizing and construction of the detention vault was accomplished,a geotech would be required to certify that it will work. As far as drainage,staff would be working with the engineer to get as much infiltration as possible. The soils here are expected to be excellent for infiltration and what would be preferred is a mixture of infiltration and some detention with water quality treatment for the roadway itself and use of infiltration with overflow systems to the pipe system. The Examiner called for further testimony regarding this project. There was no one else wishing to speak,and no further comments from staff. The hearing closed at 10:05 a.m. FINDINGS.CONCLUSIONS&RECOMMENDATION Having reviewed the record in this matter,the Examiner now makes and enters the following: FINDINGS: 1. The applicant,Robert O'Connell,Jr.,filed requests for approval of an 11-lot Preliminary Plat together with a variance to allow removal of trees for a utility line on a steep slope and.within 25 feet of a wetland buffer. 2. The yellow file containing the staff report,the State Environmental Policy Act(SEPA)documentation and other pertinent materials was entered into the record as Exhibit#1. 3. The Environmental Review Committee(ERC),the City's responsible official,issued a Declaration of Non-Significance-Mitigated(DNS-M)for the subject proposal. 4. The subject proposal was reviewed by all departments with an interest in the matter. 5. The subject site is located at 2612 Jones Avenue NE. The subject site is located north of NE 24th Street and west of Aberdeen. Kennewick Place NE and NE 27th Street are located north of the subject site. I-405 is located one block west of the subject site. 6. The subject site is zoned R-8(Single Family;Lot size-4,500 square feet). The site received this zoning in June 1993. 7. The map element of the Comprehensive Plan designates the area in which the subject site is located as suitable for the development of single family uses,but does not mandate such development without consideration of other policies of the Plan. 8. There is a workshop building on the site. Most of the site is pasture. Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA-97-135,PP,V February 2, 1998 Page 5 9. The site is actually served by a pipestem-type driveway to Jones that is 50,feet wide. This pipestem would be extended into the interior of the site to act as a public street,NE 26th Place. (see below) 10. The subject site is approximately 2.8 acres. The subject site is nearly rectangular. The site is approximately 518 feet deep(east to west)by approximately 222 feet wide. 11. The site slopes steeply down in its northeast corner at grades of approximately 65 percent(65%). At. the bottom of this slope is a Category II wetland. These constrained areas total approximately.60. acres. 12. The applicant will be creating a plat which basically contains two tiers of lots located on each side of a cul-de-sac public street. Proposed Lots 1 -4(west to east)would be located on the north side of the street. Proposed Lots 5- 11 (east to west)would be located on the south side of the street. 13. Two of the proposed lots,Lots 5 and 6,are served by pipestem or pipestem-like access driveways. Both meet code. 14. The proposed density of the eleven lot plat will be 5.94 units per net acre. This density falls within the permissible 5.0 to 8.0 dwelling units per acre required in the R 8 Zone. 15. The proposed lots will vary in size from approximately 5,603 square feet to 8,914 square feet. In addition,the northeast corner,the steep slopes,would be set aside as a 26,078 square foot native growth protection easement. 16. The site naturally drains to both the west and the east although the majority of storm water drains to the east. The westerly flow will be handled by systems along Jones. The easterly flow will be detained and then released at a controlled rate down the toe of the steep slope by a stormwater flow spreader. 17. In order to construct the eastern storm water system,trees and vegetation will be removed in a corridor down the steep slope and a trench will be dug and pipe will by laid. 18. Variances are required for any tree removal within 25 feet of a wetland or on slopes in excess of 40%. The proposed storm water system will actually trigger a need for variances since the system will be on a slope in excess of 40%and will be within 25 feet of the wetlands. The applicant has applied for the necessary variance relief. 19. NE 26th Place,the new road that will be constructed,will begin at Jones as a 50 foot wide right-of-way for approximately 100 feet and then narrow to 42 feet for the rest of its length until it ends in a cul-de- sac. . . - 20. This new road will be developed over what is now a pipestem between two existing single family homes. The traffic for these eleven(11)lots will now run immediately between the two lots that surround the pipestem. • 21. The development of the site will generate approximately 110 vehicle trips per day. 22. Staff has indicated that the steep drop-off located at the eastern edge precludes continuing the proposed new road to connect to the street grid east of the site. Staff notes that because of this,the proposed cul- de-sac is appropriate. Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA-97-135,PP,V February 2, 1998 Page 6 23. The proposed plat will generate approximately 8.4 school age children. The students will be spread across the grades and are assigned to Renton School District Schools on a space available basis. 24. The subject site is located within Zone 2 of the Aquifer Protection Zone. 25. The site is located in the Kennydale Sanitary Sewer Sub-basin and a new interceptor intended to serve the general vicinity will actually cross the subject site. The site may be served by two lines as it will be served by two storm systems to exploit gravity as much as possible. 26. The geotechnical studies show that the detention system at the east edge of the steep slope is safe. 27. The applicant will be clearing an approximately 20 foot area in order to perform the installation of the flow spreader line. The trench will vary from approximately 3 feet to 8 feet deep. 28. The'site will be revegated and once restored there should be little need to disturb the site again. CONCLUSIONS: Variance for Utility 1. Variances may be granted when the property generally satisfies all the conditions described in part below: a. The applicant suffers undue hardship caused by special circumstances such as:the size,shape, topography,or location where code enforcement would deprive the owner of rights and privileges enjoyed by others similarly situated; b. The granting of the variance would not materially harm either the public welfare or other property in the vicinity; • c. The approval will not constitute a special privilege inconsistent with the limitations on other property in the vicinity;and d. The variance is the minimum variance necessary to allow reasonable development of the subject site. The applicant's property appears ripe for the variance requested. • 2. The subject site is constrained by both a steep slope and a wetland. Approximately one-fifth of the site is wetland and added to that is a portion of the site which has very steep slopes. This limits the normal development potential of the subject sitein ways in which other property in the vicinity is not limited. In order to accommodate the storm water needs of the subject site while preserving the wetland hydrology,a system needs to be developed which can carry water down a steep slope and deposit it near or adjacent to the wetland without causing erosion. The proposed flow spreader appears to offer the appropriate balance. This system due to its very nature must be constructed on steep slopes and within 25 feet of the wetland. In order to accommodate this system,trees and other vegetation will have to be removed to accommodate construction. Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA 97-135,PP,V February 2, 1998 Page 7 3. The proposal should not ultimately affect either the public welfare or other property in the area. While vegetation will be removed for construction purposes,it will be replanted. Erosion control will be provided to assure that the slope and exposed soils do not erode. In addition,the flow spreader is intended to not only dissipate the erosive force of storm water but also to maintain the wetland hydrology with similar amounts and quantities of storm water as would naturally feed the wetland. 4. Approval in this case will not extend a special privilege to the applicant. The nature of the site and its combination of steep slope and wetlands clearly distinguishes this property from other property in the vicinity. 5. The intrusion will.be kept to•a minimum while enabling the applicant to disperse storm water and appropriately recharge the wetland aquifer. - Preliminary Plat 6. The proposed plat appears to serve the public use and interest. It will create additional single family . housing choices in an area that is or can reasonably be served by urban services. It will fulfill the goals • of the Comprehensive Plan by providing single family uses which complement those already in the • area. 7. The cul-de-sac street is appropriate in this situation. While not assisting in the furthering of the street grid system, it creates a reasonable method of providing access to the interior areas of this larger parcel. 8. The creation of a new street will serve to convert two existing mid-block lots to new corner lots. Where they were once neighbors to a large,essentially undeveloped site with a shop,they will now have traffic for 11 new lots entering a street that was once only a driveway to a single family lot. In addition now to the traffic that exists on Jones,they will be subject to approximately 110 additional vehicle trips along what was their respective sideyards. The applicant shall be required to screen these two parcels with fences and landscaping. 9. The changing road width appears to have been designed to slowly narrow from the 50 foot width to a 42 foot width. This should enhance safety,but if necessary to buffer the two lots noted above,the width shall be narrowed further to accommodate appropriate fencing and landscaping. 10. Most of the proposed lots are rectilinear with side lot lines perpendicular to the street. The lots. accessed from the cul-de-sac bulb vary from the desired rectangular shape but approximate it as best they can. 11. Under the ERC conditions,the applicant will bemitigating its impacts on streets,parks and fire demand. 12. The varied lot sizes will help blend this development into the existing neighborhood. In addition,the . lots of this plat are interior to the existing streetscape along Jones and will not be visible to the majority of existing development in the area. This will help offset any impacts created by the smaller lot sizes found in the proposed plat. 13. In conclusion,the variance and plat appear to be compatible and appropriate for the subject site. • Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA=97-135,PP,V February 2, 1998 Page 8 DECISION: The variance is approved subject to the following conditions: 1.• The applicant shall comply with the ERC conditions applicable to the variance and storm drainage requirements. 2. The applicant shall minimize the intrusion and vegetation removal from the corridor in which the storm line:is located. 3. The applicant shall revegetate the site and take all necessary interim measures including hydroseeding or other similar actions to assure that erosion is kept to a minimum and all natural vegetation is replanted as soon as possible. RECOMMENDATION: The Preliminary Plat should be approved by the City Council,subject to the following conditions: 1. The applicant shall comply with the ERC conditions. • 2. The applicant shall be required to screen the two parcels located on either side of the new roadway with fences and landscaping: The roadway width of the new street where it enters the site from Jones Avenue NE shall be narrowed as necessary below 50 feet in width to accommodate appropriate fencing and landscaping. 3. The applicant/owner shall draft and record a maintenance agreement or establish a homeowners association for the maintenance of all common plat improvements(storm water detention vault,flow spreader,utility easements). A draft of the document shall be submitted to the City for review and approval by the City Attorney prior to the recording of the plat. 4. The applicant/owner shall define and record a Native Growth Protection Easement on the face of the plat for the steep slope and wetland area on the east portion of the property. The applicant/owner shall adhere to the City Code requirements for such areas. ORDERED THIS 2nd day of February, 1998. FRED J.KAUF HEARING EXAMINER TRANSMITTED THIS 2nd day of February, 1998 to the parties of record: Jennifer Henning Robert W.O'Connell,Jr. Neil Watts 200 Mill Avenue S 4620 200th SW 200 Mill Avenue S Renton,WA 98055 Lynnwood, WA 98036 Renton,WA 98055 • . Robert O'Connell,Jr. Plat of Whispering Pines File No.:LUA 97-135,PP,V February 2, 1998 Page 9 • Nancy Bennett Richard Fisher 2612 Jones Avenue NE P.O.Box 969 Renton,WA 98056 Sequim,WA 98382 TRANSMITTED THIS 2nd day of February, 1998 to the following: Mayor Jesse Tanner Gregg Zimmerman,Plan/Bldg/PW Administrator Members,Renton Planning Commission Jim.Hanson,Development Services Director Art Larson,Fire Marshal Mike Kattermann,.Technical Services Director Lawrence J.Warren,City Attorney Larry Meckling,Building Official Transportation Systems Division Jay Covington,Chief Administrative Officer Utilities System Division Councilperson Kathy Keolker-Wheeler South County Journal Pursuant to Title IV,Chapter 8,Section 15 of the City's Code, request for reconsideration must be filed in writing on or before 5:00 p.m..February 16.1998. Any aggrieved person feeling that the decision of the Examiner is ambiguous or based on erroneous procedure,errors of law or fact,error in judgment,or the discovery of new evidence which could not be reasonably available at the prior hearing may make a written request for a review by the Examiner within fourteen(14)days from the date of the Examiner's decision. This request shall set forth the specific ambiguities or errors discovered by such appellant,and the Examiner may, after review of the record,take further action as he deems proper. An appeal to the City Council is governed by Title N,Chapter 8,Section 16,which requires that such appeal be filed with the City Clerk,accompanying a filing fee of$75.00 and meeting other specified requirements. Copies of this ordinance are available for inspection or purchase in the Finance Department,first floor of City Hall. If the Examiner's Recommendation or Decision contains the requirement for Restrictive Covenants,the executed Covenants will be required prior to approval by City Council or final processing of the file. You may contact this office for information on formatting covenants. The Appearance of Fairness Doctrine provides that no ex parte(private one-on-one)communications may occur concerning pending land use decisions. This means that parties to a land use decision may not communicate in private with any decision-maker concerning the proposal. Decision-makers in the land use process include both the Hearing Examiner and members of the City Council. All communications concerning the proposal must be made in public. This public communication permits all interested parties to know the contents of the communication and would allow them to openly rebut the evidence. Any violation of this doctrine would result in the invalidation of the request by the Court. The Doctrine applies not only to the initial public hearing but to all Requests for Reconsideration as well as Appeals to the City Council. PRELIMINARY PLAT OF • WHISPERING PINES , PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 • r•= LEGAL DESCRIPTION PARCEL 3 PROJECT DATA Je f b toot 817E SlclE MAY R-6) THAT POR1101 Cr TRACTS 755.256.257.275.278,277 Cr C.D. PflL U Y p-s) li He1NAN'S LANE IYASNNOTON CAROCN Cr MEN ONSIDE NO.4.ACCORTNO -1ONC 1L..22 TN '� , TO flit PUT iHCRECF RECORDED N VOUItIE II a PLATS.PACE 62. RECORDS Ci RING coiwro WA91MGTON.DESCRIBED AS MORE11 LOT eya M.R. ,.1 0.23 eECINNMO AT 111E NORTHPESf CORNER FEET TRACT 277: 6NYlOT RD SAW 60.FT. • ,HENCE SCUM 89'43.59'EAST iN./t FEET ALONG TM NORM UNt Cr SAID TRACT TO DIE 8111E POINT OF OLONNNG ROADS - • iHENCC CONTINUING SOUTH 89.43'59•LAST 817.18 FEED Pye tAfAe[ .A71 tAfAL rta 9/. A THENCE SCUM 00•31.06•VEST 22Lh FEET TO A PONT GN THE SOUTH . • - LHE or SAq TRACT:55: LOT SIZING • THENCE SOUTH 6979 33.TEST 517,82 fEET ALONG nit SOUIMIRY tort OF TRACTS 25S AND 275: - 12M Sf' THENCE NCRM 00'33'45'EAST e0.05 FEET; - oAoy WI MU trig, f.ts AOkS ht1a11 sa R THERM Noah 6972.13•SLOT 94.15 22: 10 me SCORNING K DIRK 20 WA Nbosm PA9 AAA 39 /C (YAMS 5e.rt. THE LEE?HARING A RADIUS 0 20 FEEL; AAG a ler6 AN9enpI faAR(t6reT•RAY)) 0inei IO LIES f0.rt mg TN[NCE ALONG SAID CURIE Re+d/CI1 A CENTRAL ANON OP e97t'02'. 00.lur2 PncV'rAY)IRA ....�faarl ton.t0.A1 Aatt) er>�AM NANNG AN ARC LENGTH OF 21.26 rut TO A PM:ON ME EAST LINE OF A MM kV 31.115!vT•Coy AST 031i OC�L2 AAu ,AMC ANORTH THENCE NORM 00'33'45'EAST 90 EMT ALONG SAID UNE: THENCE SOUTH LOIG 5'LEST THROUGH A CENTRAL ANGLE Cr 90'25'S8• ST . THENCE AN ARC 922 13 O 31.97 29 r NOTES - < HENCE NOUN 00'33.5.UST 91.29 FLEE f E ��t MENa NORM 007115'CAST 9t,10 FEET 1O INC TRUE PONT a 1.le 01u STRUCT WE AV FRaroso t0 eE Ceratg1C11D calms lac MOWING RN(ALSO 014/AS FARM.3 Cr CITY OF R NENT NO.LOT UNE ADAIST . � OIO-ee,RECORMD UNDER RECORONO NO.86092290I1.) VICINITY MAP ''\ -°l SITUATE N THE COUNTY Cr KG IN STATE OF wA5MN010N. • OWNER / SURVEYOR / ENGINEER NO SCALE ORNEF8 NANCY OLIMETT 2612.TONES AVE.N.E. , RENTON.0ASHNOTON 98056 • N.E. 28TH STREET owl ENGINEER: ROSER?W.O'CONNELL.r+. P.E. N0.18093 33(,3902180 • SURVEYOR: ITEMS VANOERZANDEN PLS. N0.30427 • �C.PMT . 0 / CV I R.dus t �3,LpNc1H t TriwENT E }2a`7rA C I50+s�5.�; 'rtia• tt}.Y 21'6a'` •`i•i•i•i I��•� 31.3...E 181 '�f32: °Io r ,SCALE/NTEET • ¢♦{1 i 33(( L 1 I ; I Ar uo GA 5s'.O'A. IIV7' I T.O' 26' 1• S • c 0 tr CO. or A A6•M N e9't3'S9'w 517.,e' A 6 X �}, 60.00•- 60.00' 90.07' ,..I. ..8• 247.83' :A I_ �.29' A.e • "'iiiwww 15'LATE or mom t'� •P �•- • UMW EASEWENT 7 �tr3 °""" ` i. § e-10 Ell I 4tk:'.1.-. �A-2 WETLANDS (TRACT'Al LOT 1 "' It:i. e-T1v332• zE6o7e 6q.n 331.3GU..8C.i § 1 r a 1 2 n §g 7.37 9g., N 29•42'06'C Ir L-11.13' NOT PART OF ? s,e66 Pv.n. s.e91 6v.r1. s.ee2 sv.rl. . est .A-3 334,3902061 _ _ AF m , >r nl� TRACT`%` :w • THIS SUBDIVISION = _ e•7v.6 : 393 skit.2 $ to MOC pLANttll/ R•t500' I S A-A A 7 e 9001:5°- = UTRTTY!9 wAtlt t-;116 l• A-5�� _6 -� M LA�r NENT A\ •* �� - a e IRKSAT L:3sY ( 60.00• 60.02 _20.66' ZIP � 1 N 89SY13'w 9/.29' 60.OY 11- 9 '7.5�s a $ - * " b `� `6 k N.E 26TH PLAN 1,� -l - Ce. / �' OItiA,:+ t N e93Y13'w 121.94: L\'O o`#\'` ' y r ' - �i - 392 so 4 T� RIGHT-OF-WAY -E--- • R tV 6' k t co 2S.T9S F- /y s U OTT 07 RNT�E Y�i1 �1 2a1a Eac� '� • 1T , i + 4 J C -:- N 093YS3• 77Sf 91VTTT'91L , I t 6A75' - �60.75' 60.75'- 35.Sa' c6��_ _G 4''a smart g7j�b'A 60.20 F. 1 N 695253'w 9t.15' ,�- -- -� -ram _ - :' .89.3t'01' - • 10'160E PLANTER/ - • C ywrA6r tE.L9 tAv -70.00' S - - �QT• �► . .tau • .31aa LOT 2 W anon 3 SIDEwAtx W. - 1n EAmAU17 N 6 ^ Y 5- 331.39G.".BEG o • 10 7.� . p 7 . 6 :b •D.913 sq.& @ - c2'220 ' I w g 11 C J • 5,603 9q.?L s.659 eq.EL 7.227 6q.R. 9_ • 33L3002120 �. g 5.772 sq.fL t 5.262 sq.& X g LmNioiSO'yafl• 1 m 1 to ;I } NOT_PART OF 2 = vow'a = _ I 1C woe Eset 208 . THIS SUBDIVISION t • .1.-SLOPE PROIEGiiGN = .� 89,00' et.ao' 75.00' T 66.35' L = 6e.73 ae.7s' -ee7s'-� N e9'5933 [ ,s,7.a2' w,W \ cit!3.3Ei1 i 60 HILLS • 33c:19G2893 I / X 331.3!IG:!G:{fl I 33L3?{G3!!I,I I \ 1 I I • 19 / i 23 22 21 20 DAM Salk 12/05/92 1`'40' - • Parcel 3: That portion of Tracts 255, 256. 257. 275. 276. and 277 of C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, according to the Plat thereof recorded in Volume 11 of Plats. Page.82. records of King County. Washington. described as follows: Beginning at the Northwest corner of Tract 277: THENCE South 89°43'59" East 114.44 feet along the North line of said tract to ' the true point of beginning: THENCE continuing South 89°43'59" East 517.18 feet: THENCE South 0°34'06" West 221.97 feet to a point on the South line of said Tract 255: THENCE South 89°59'33" West 517.62 feet along the Southerly line of Tracts 255 . and 275: THENCE North 0°33'45" East 80.05 feet; THENCE North 89°52'13" West 94.15 feet to the beginning of a curve to the left having a radius of 20 feet: THENCE along said curve through a central angle of 89°34'02" . having an arc length of 31.26 feet to a point on the East line of Jones Avenue: THENCE North 0°33'45" East 90 feet along said line: THENCE on a curve .to the left having a radius of 20 feet and from a tangent bearing South 0°33'45" West through a central angle of 90°25'58" having 'an arc length of 31.57 feet: • THENCE South 89°52'13" East 94.29 feet: THENCE North 0°33'45" East 94.40 feet to the true point of beginning. (ALSO KNOWN AS Parcel 3 of City of Renton Lot Line Adjustment No. 010-86. recorded under Recording No. 8609229011. ) Situate in the County of King, State of Washington. fr .;�, .,.,.. •.fir•. .7•�`•\Y -f. `iar:r y�n� :"j" A•` Z .r 7 W `fir;• }' - Y `::;''w•` =;., .�" :1.. is :. `:o-P :ia°. :, _ j,ti•'. ;; :zcs r: .a,:,'^.} t 0 Q�� y°fa w3.h t t, ve,s�a,,?x.:�I ..,,,� ��..;ta', _?�`_:�•.,.r.,., 1:�;r,,':.�:• ..:L. .,;.,p I�,•.,1`�. '�.t, �a�,•§�'. • rY 4r+ }q .s e. -1`• .Tit•' r'31•' .`j 3-" \f rr, .b• 1 S: i1 M :tea .ice, `ra _ .. March 17, 1998 • Mr. Robert O'Connell,Jr. 4620 200 Street SW, Suite F - " Lynnwood,WA .98036 Re: • WHISPERING PINES PRELIMINARY PLAT • FILE No. LUA97-135,PP,V Dear Mr. O'Connell: • " • The Fxaminer's.Report and Recommendation: nd the Request for Reconsideration on the above referenced matter were not appealed within the,14-day period established by ordinance. ' Therefore,this matter is being;transmitted to the'City`Clerk tlus'date for transmittal to the City. Council for review. You will receive notification of final approval„from'the•'City Clerk, and will be notified of all action taken by the City.Council upon approvalof the:•request. ;: r a, • •Please feel free to contact this office if further;�assistance or information is required:, Sincerely, Fred J. Kaufman Hearing Examiner FJK/mm . cc: Jennifer Toth Henning Sandi Seeger,Development Services • • • 200 Mill Avenue South-Renton,Washington 98055 - (206)235-2593 �1 Th10 naner rnntalnc cfl%recycled material 90%nost consumer y,�v'P f ' •'S':,.. i! ..L�..,a 7 :.tt. :CIT3i F`R:E' OlT :r :. .HearinExaminer E e r: g Jesse Tanner,Mayor . • • .. . . 'Fred J Kaufma n February 23, 1-998• • Mr. Jim Hanson •Planning/Building/Public Works City of-Renton 200 Mill Avenue s Renton, WA 98055 Re: : Request for Reconsideration re: Whispering Pines File No. LUA97-135,PP,V Dear Mr.Hanson: I have reviewed the referenced Request for Reconsideration. This is no reason to alter or'remove the condition: Clearly,the condition will have to comply with appropriate setback and height limits found in the code. The fence can still serve as best it can its intended purpose to screen the two homes from the assault of road noise that the creation of a new road will create. If this decision is not acceptable,'you may appeal to the City Council within 14 days of this decision: , Sincerely, Fred J. Kaufman . • Hearing Examiner FJK:mm 0 • cc: Mayor Jesse Tanner , Gregg Zimmerman,Plan/Bldg/PW Admin. Members,Renton Planning Commission Jim Hanson,Development Services Dir. •� • Art Larson,Fire Marshal. 0 Mike Kattermann,Technical Services Dir. Lawrence J.Warren,City Attorney Larry Meckling,Building Official Transportation Systems Division -Jay Covington,Chief Administrative Officer Utilities System Division ' Councilperson Kathy Keolker-Wheeler South County Journal Parties of Record 200 Mill Avenue South -Renton,Washington 98055 - (206)235-2593 `R)This paper contains 50%recycled material,20%post consumer O E@NWEi FEB 51998 j.j,1 . CITY OF RENTON HEARING EXAMINER CITY OF RENTON PLANNINGBUILDING/PUBLIC WORKS MEMORANDUM DATE: February 5, 1998 TO: Fred Kaufman FROM: Jim Hanson SUBJECT: Reconsideration Item#2 of Recommendation for Whispering Pines Plat LUA-97-135,PP,V I would like to request that item #2 be eliminated from your recommendation for Whispering Pines plat. City code only allows fences or hedges with a maximum height of 42"within a 20-foot clear vision area, and 48"in the front or side yard along a street within the building setback. That fence height will do little to screen the existing houses. The City also does not allow private fences on the public right of way. Your condition appears to require the location of the fence in the right of way,which violates City code. cc: Jana Huerter Gregg Zimmerman JCH98-007cg 2. The applicant shall be required to screen the two parcels located on either side of the new roadway with fences and landscaping. The roadway width of the new street where it enters the site from Jones Avenue NE shall be narrowed as necessary below 50 feet in width to accommodate appropriate fencing and landscaping. AFFIDAVIT OF SERVICE BY MAILING STATE OF WASHINGTON ) ss. County of King ) MARILYN MOSES ,being first duly sworn,upon oath, deposes and states: That on the 2nd day of February ,1998, affiant deposited in the mail of the United States a sealed envelope(s) containing a decision or recommendation with postage prepaid, addressed to the parties of record in the below entitled application or petition. Signature: ' 1/' i` SUBSCRIBED AND SWORN to before me this $i d day of , 1998. Notary Public 'n and for the State of Washington, residing at ,therein. Application, Petition, or Case No.: Plat of Whispering Pines LUA97-135, PP,V The Decision or Recommendation contains a complete list of the Parties of Record. HEARING EXAMINER'S REPORT February 2, 1998 OFFICE OF THE HEARING EXAMINER CITY OF RENTON REPORT AND RECOMMENDATION APPLICANT: Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V LOCATION: 2612 Jones Avenue NE SUMMARY OF REQUEST: Request preliminary plat approval to subdivide 2.8 acres into 11 lots for single family homes. Variance requested to construct stormwater flow spreader at toe of steep slope adjacent to Category II wetland. SUMMARY OF ACTION: Development Services Recommendation: Approve with conditions DEVELOPMENT SERVICES REPORT: The Development Services Report was received by the Examiner on January 6, 1998. PUBLIC HEARING: After reviewing the Development Services Report, examining available information on file with the application,field checking the property and surrounding area;the Examiner conducted a public hearing on the subject as follows: MINUTES The following minutes are a summary of the January 13,1998 hearing. The legal record is recorded on tape. The hearing opened on Tuesday,January 13, 1998,at 9:06 a.m. in the Council Chambers on the second floor of the Renton Municipal Building. Parties wishing to testify were affirmed by the Examiner. The following exhibits were entered into the record: Exhibit No. 1: Yellow file containing the original Exhibit No.2: Vicinity map application,proof of posting,proof of publication and other documentation pertinent to this request. Exhibit No.3: Preliminary plat map Exhibit No.4: Preliminary plat map with grading plan The hearing opened with a presentation of the staff report by JENNIFER HENNING,Project Manager, Development Services,City of Renton,200 Mill Avenue South,Renton,Washington 98055. The applicant requests approval to subdivide a piece of property into 11 parcels for construction of individual single family Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 2 homes. The subject property is located in the east Kennydale portion of the City. It is on the east side of I-405 near the N. 30th exit. The boundaries of the site are Jones Avenue NE on the west,NE 28th on the north and NE 24th on the south. The northwest portion of the site is relatively flat and has an existing two-story shop building that would be demolished. The northeastern portion of the parcel has a Category II wetland and a steep slope of about 60 to 65 percent. This is considered an unbuildable area. The applicant is proposing to record a native growth protection easement on this portion of the plat. The City has recorded an easement for utilities through this property to construct its East Kennydale sewer and storm water interceptor lines. The 11- lot plat was considered by the Environmental Review Committee(ERC)and they issued a Determination of Non-Significance-Mitigated in mid-December. The City's easement comes in from the east portion of the site,goes east-west then turns slightly northwest and then north. It would be located along the north side of proposed Lot 5 and Lot 6,cross the cul-de-sac and then come through a portion of proposed Lot 4. That has been recorded by the City and construction of the proposed utilities is anticipated to begin this spring. The applicant also requests a variance from City Code Section 4-9-5.D in order to construct storm water facilities down the steep slope and adjacent to a Category II wetland. There is a 12-inch storm water line to be built on the slope below ground. It would connect to a flow spreader that would be located at the toe of the slope adjacent to the wetland. It would be within the 50 foot wetland buffer,but it would also be within 25 feet of the edge of the wetland. The 11 lots would range in size from 5,600 to 8,914 square feet. This is above the City's minimum of 4,500 square feet for the R-8 zone in which this property is located. There would be a new public street which is NE 26th. It would be extended from Jones Avenue NE to the east and would serve the 11 lots and end in a cul-de- sac. The right of way would be 50 feet wide at its intersection with Jones. It would reduce within the plat to 42 feet in width beginning where Lots 1 and 11 are located. It would include the required 32 foot travel lane with 6 foot sidewalks,but only 5 feet of those sidewalks would be within the right of way. The additional one foot would be in a 10 foot wide easement which would also include utilities and a planting strip. That would be located either in the front yard area or pipestem area for the proposed lots. A storm water vault would be constructed underground within the cul-de-sac area. The ERC assigned several mitigation measures to the proposal, including following recommendations of the geotechnical engineering study,and paying the parks,traffic and fire mitigation fees. There were also mitigation measures associated with storm drainage: (1)grading of the new street at its intersection with Jones should be accomplished in order to make sure the runoff from the section of new street is conveyed to the east side of Jones NE rather than have it sheet flow across Jones to the west side;(2)final engineering plans shall include the use of infiltration discharge design where possible; (3)final drainage control plans shall be designed to discharge one-half of the two year predeveloped discharge through the two year design storm,one- half of the ten year predeveloped discharge through the ten year design storm, and with overflow occurring when the 100 year design storm with a 30 percent factor of safety detention are exceeded; (4)final drainage control plans shall provide split discharge design to discharge the two-year and ten-year design storms directly into the wetland. Furthermore,the plans shall provide for the diversion of flows from storms greater than the 10 year design storm into the Kennydale storm water interceptor. Regarding the variance request,the applicant would have to remove vegetation from the steep slope area in order to construct the storm water facility line as well as within 25 feet of the wetland to construct the flow Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 3 spreader. The line would be buried 3 to 8 feet below the surface. Large equipment would be needed for installation of the pipe. There is no need to keep the area clear for maintenance. The presence of the steep slope and wetland area reduces the area available for the applicant to develop homes. The proposal for 11 homes is near the minimum net density that is allowed by this zone classification,which is 5 units to the acre or • a maximum density of 8 units to the acre. The applicant has achieved a density of 5.94 units to the acre. The applicant's request for the variance to locate the site's storm facilities on the slope and adjacent to the wetland is in response to a desire to meet the minimum net density requirements, given the constraints of the site. In addition,the City's wetland ordinance allows the use of buffers in wetland areas for storm water discharges and storm water dispersion facilities as long as they meet the requirements and tests of the City's surface water drainage ordinance. It is possible to construct the discharge conveyance pipe dispersion facilities outside the buffer and wetland area;however, it could constitute a threat to downstream areas. The impact on the proposed plat, surrounding properties and the public welfare would allow for the release of storm waters at their natural location, disbursed to minimize channelization and erosion of the wetland areas and the buffer. Staff would recommend that the applicant revegetate the disturbed portion of the slope immediately following installation of the line. For areas within the wetland buffer,revegetation should be accomplished in consultation with a wetlands biologist,a wetlands ecologist or landscape architect that has expertise in wetlands. Pertaining to the preliminary plat criteria,this area is designated residential single family in the Comprehensive Plan(CP)and the zoning designation is R-8 with a minimum lot size of 4,500 square feet. Other platsrin this area include Sunset Hills to the south with lot sizes of about 7,200 square foot minimum which were achieved under the old zoning code. La Mesa is located to the northeast with minimum lot sizes of 4,500 square feet. There are other larger parcels that have yet to subdivide in this area. This proposal meets the intent of lot arrangement criteria. It appears that the lots meet all the minimum setbacks,minimum size,width and depth. This particular project would generate about 105 new average daily traffic trips. The access would be from Jones. The two lots that front on Jones would be impacted by additional noise and headlight glare. There may be a need for some measure of fencing or landscaping that could help prevent the impacts to those adjacent property owners. There are public services to serve this site. There are parks within a one mile area. Renton School District has informed the City that there is space available in their system. This particular proposal would be expected to generate about 8.5 students. In terms of storm water, about.7 acres of the site presently discharges to the west to Jones Avenue. The east 2.11 acres is meadow,wetland buffer and slope. The site is located within Zone 2 of the Aquifer Protection Area. Staff would recommend approval of this plat subject to several conditions: (1)compliance with the ERC mitigation measures; (2)drafting of a homeowner's association or maintenance agreement. This agreement or association would be responsible for all common plat improvements and also for the payment of taxes and maintenance of the native growth protection area easement. (3) Establishment of the native growth protection area to be defined and recorded on the face of the plat. The applicant/owner would be required to adhere to City code requirements for such areas. (4) Revegetation of the hill slope portions that are disturbed by installation of the storm water line,to be accomplished immediately following the installation of the storm water line and the flow spreader. A wetlands biologist,wetlands ecologist,or landscape architect with expertise in wetlands to provide the expertise with regard to revegetation plantings. Robert W. O'Connell, Jr., Olds Group,4620 200th SW,Lynnwood,Washington 98036,applicant herein, explained the various natural restrictions of this parcel and how they arrived at the locations of the detention Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 4 vault, storm water line and flow spreader. Concerning the width of the possible construction going down the slope,he stated that at its widest it would be approximately 15 to 20 feet wide. Regarding the two lots on Jones,the current access is steep coming off of Jones and rises very fast as it goes to the east. It will be dropped approximately 2 to 3 feet from where it is now in order to satisfactorily take care of drainage. In the area that is adjacent to those two lots where there is a 50 foot right of way, slope transitions must be made. The plan is for a stub wall to the north and a short rockery on the south. Neil Watts,Plan Review Supervisor,Development Services,City of Renton,200 Mill Avenue S,Renton, Washington 98055, stated that once the final sizing and construction of the detention vault was accomplished,a geotech would be required to certify that it will work. As far as drainage, staff would be working with the engineer to get as much infiltration as possible. The soils here are expected to be excellent for infiltration and what would be preferred is a mixture of infiltration and some detention with water quality treatment for the roadway itself and use of infiltration with overflow systems to the pipe system. The Examiner called for further testimony regarding this project. There was no one else wishing to speak,and no further comments from staff. The hearing closed at 10:05 a.m. FINDINGS,CONCLUSIONS&RECOMMENDATION Having reviewed the record in this matter,the Examiner now makes and enters the following: FINDINGS: 1. The applicant,Robert O'Connell,Jr.,filed requests for approval of an 11-lot Preliminary Plat together with a variance to allow removal of trees for a utility line on a steep slope and within 25 feet of a wetland buffer. 2. The yellow file containing the staff report,the State Environmental Policy Act(SEPA)documentation and other pertinent materials was entered into the record as Exhibit#1. 3. The Environmental Review Committee(ERC),the City's responsible official, issued a Declaration of Non-Significance-Mitigated(DNS-M)for the subject proposal. 4. The subject proposal was reviewed by all departments with an interest in the matter. 5. The subject site is located at 2612 Jones Avenue NE. The subject site is located north of NE 24th Street and west of Aberdeen. Kennewick Place NE and NE 27th Street are located north of the subject site. I-405 is located one block west of the subject site. • 6. The subject site is zoned R-8 (Single Family;Lot size-4,500 square feet). The site received this zoning in June 1993. 7. The map element of the Comprehensive Plan designates the area in which the subject site is located as suitable for the development of single family uses,but does not mandate such development without consideration of other policies of the Plan. 8. There is a workshop building on the site. Most of the site is pasture. Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 5 9. The site is actually served by a pipestem-type driveway to Jones that is 50 feet wide. This pipestem would be extended into the interior of the site to act as a public street,NE 26th Place. (see below) 10. The subject site is approximately 2.8 acres. The subject site is nearly rectangular. The site is approximately 518 feet deep(east to west)by approximately 222 feet wide. 11. The site slopes steeply down in its northeast corner at grades of approximately 65 percent(65%). At the bottom of this slope is a Category II wetland. These constrained areas total approximately.60 acres. 12. The applicant will be creating a plat which basically contains two tiers of lots located on each side of a cul-de-sac public street. Proposed Lots 1 -4(west to east)would be located on the north side of the street. Proposed Lots 5 - 11 (east to west)would be located on the south side of the street. 13. Two of the proposed lots,Lots 5 and 6,are served by pipestem or pipestem-like access driveways. Both meet code. 14. The proposed density of the eleven lot plat will be 5.94 units per net acre. This density falls within the permissible 5.0 to 8.0 dwelling units per acre required in the R-8 Zone. 15. The proposed lots will vary in size from approximately 5,603 square feet to 8,914 square feet. In addition,the northeast corner,the steep slopes,would be set aside as a 26,078 square foot native growth protection easement. 16. The site naturally drains to both the west and the east although the majority of storm water drains to the east. The westerly flow will be handled by systems along Jones. The easterly flow will be detained and then released at a controlled rate down the toe of the steep slope by a stormwater flow spreader. 17. In order to construct the eastern storm water system,trees and vegetation will be removed in a corridor down the steep slope and a trench will be dug and pipe will by laid. 18. Variances are required for any tree removal within 25 feet of a wetland or on slopes in excess of 40%. The proposed storm water system will actually trigger a need for variances since the system will be on a slope in excess of 40%and will be within 25 feet of the wetlands. The applicant has applied for the necessary variance relief. 19. NE 26th Place,the new road that will be constructed,will begin at Jones as a 50 foot wide right-of-way for approximately 100 feet and then narrow to 42 feet for the rest of its length until it ends in a cul-de- sac. 20. This new road will be developed over what is now a pipestem between two existing single family homes. The traffic for these eleven(11)lots will now run immediately between the two lots that surround the pipestem. 21. The development of the site will generate approximately 110 vehicle trips per day. 22. Staff has indicated that the steep drop-off located at the eastern edge precludes continuing the proposed new road to connect to the street grid east of the site. Staff notes that because of this,the proposed cul- de-sac is appropriate. Robert O'Connell, Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 6 23. The proposed plat will generate approximately 8.4 school age children. The students will be spread across the grades and are assigned to Renton School District Schools on a space available basis. 24. The subject site is located within Zone 2 of the Aquifer Protection Zone. 25. The site is located in the Kennydale Sanitary Sewer Sub-basin and a new interceptor intended to serve the general vicinity will actually cross the subject site. The site may be served by two lines as it will be served by two storm systems to exploit gravity as much as possible. 26. The geotechnical studies show that the detention system at the east edge of the steep slope is safe. 27. The applicant will be clearing an approximately 20 foot area in order to perform the installation of the flow spreader line. The trench will vary from approximately 3 feet to 8 feet deep. 28. The site will be revegated and once restored there should be little need to disturb the site again. CONCLUSIONS: Variance for Utility 1. Variances may be granted when the property generally satisfies all the conditions described in part below: a. The applicant suffers undue hardship caused by special circumstances such as: the size, shape, topography, or location where code enforcement would deprive the owner of rights and privileges enjoyed by others similarly situated; b. The granting of the variance would not materially harm either the public welfare or other property in the vicinity; c. The approval will not constitute a special privilege inconsistent with the limitations on other property in the vicinity; and d. The variance is the minimum variance necessary to allow reasonable development of the subject site. The applicant's property appears ripe for the variance requested. 2. The subject site is constrained by both a steep slope and a wetland. Approximately one-fifth of the site is wetland and added to that is a portion of the site which has very steep slopes. This limits the normal development potential of the subject site in ways in which other property in the vicinity is not limited. In order to accommodate the storm water needs of the subject site while preserving the wetland hydrology,a system needs to be developed which can carry water down a steep slope and deposit it near or adjacent to the wetland without causing erosion. The proposed flow spreader appears to offer the appropriate balance. This system due to its very nature must be constructed on steep slopes and within 25 feet of the wetland. In order to accommodate this system,trees and other vegetation will have to be removed to accommodate construction. Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 7 3. The proposal should not ultimately affect either the public welfare or other property in the area. While vegetation will be removed for construction purposes, it will be replanted. Erosion control will be provided to assure that the slope and exposed soils do not erode. In addition,the flow spreader is intended to not only dissipate the erosive force of storm water but also to maintain the wetland hydrology with similar amounts and quantities of storm water as would naturally feed the wetland. 4. Approval in this case will not extend a special privilege to the applicant. The nature of the site and its combination of steep slope and wetlands clearly distinguishes this property from other property in the vicinity. 5. The intrusion will be kept to a minimum while enabling the applicant to disperse storm water and appropriately recharge the wetland aquifer. Preliminary Plat 6. The proposed plat appears to serve the public use and interest. It will create additional single family housing choices in an area that is or can reasonably be served by urban services. It will fulfill the goals of the Comprehensive Plan by providing single family uses which complement those already in the area. 7. The cul-de-sac street is appropriate in this situation. While not assisting in the furthering of the street grid system, it creates a reasonable method of providing access to the interior areas of this larger parcel. 8. The creation of a new street will serve to convert two existing mid-block lots to new corner lots. Where they were once neighbors to a large,essentially undeveloped site with a shop,they will now have traffic for 11 new lots entering a street that was once only a driveway to a single family lot. In addition now to the traffic that exists on Jones,they will be subject to approximately 110 additional vehicle trips along what was their respective sideyards. The applicant shall be required to screen these two parcels with fences and landscaping. 9. The changing road width appears to have been designed to slowly narrow from the 50 foot width to a 42 foot width. This should enhance safety,but if necessary to buffer the two lots noted above,the width shall be narrowed further to accommodate appropriate fencing and landscaping. 10. Most of the proposed lots are rectilinear with side lot lines perpendicular to the street. The lots accessed from the cul-de-sac bulb vary from the desired rectangular shape but approximate it as best they can. 11. Under the ERC conditions,the applicant will be mitigating its impacts on streets,parks and fire demand. 12. The varied lot sizes will help blend this development into the existing neighborhood. In addition,the lots of this plat are interior to the existing streetscape along Jones and will not be visible to the majority of existing development in the area. This will help offset any impacts created by the smaller lot sizes found in the proposed plat. 13. In conclusion,the variance and plat appear to be compatible and appropriate for the subject site. Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 8 DECISION: The variance is approved subject to the following conditions: 1. The applicant shall comply with the ERC conditions applicable to the variance and storm drainage requirements. 2. The applicant shall minimize the intrusion and vegetation removal from the corridor in which the storm line is located. 3. The applicant shall revegetate the site and take all necessary interim measures including hydroseeding or other similar actions to assure that erosion is kept to a minimum and all natural vegetation is replanted as soon as possible. RECOMMENDATION: The Preliminary Plat should be approved by the City Council, subject to the following conditions: 1. The applicant shall comply with the ERC conditions. 2. The applicant shall be required to screen the two parcels located on either side of the new roadway with fences and landscaping. The roadway width of the new street where it enters the site from Jones Avenue NE shall be narrowed as necessary below 50 feet in width to accommodate appropriate fencing and landscaping. 3. The applicant/owner shall draft and record a maintenance agreement or establish a homeowners association for the maintenance of all common plat improvements(storm water detention vault,flow spreader,utility easements). A draft of the document shall be submitted to the City for review and approval by the City Attorney prior to the recording of the plat. 4. The applicant/owner shall define and record a Native Growth Protection Easement on the face of the plat for the steep slope and wetland area on the east portion of the property. The applicant/owner shall adhere to the City Code requirements for such areas. ORDERED THIS 2nd day of February, 1998. 1A<Guds_ FRED J.KAUF N HEARING EXAMINER TRANSMITTED THIS 2nd day of February, 1998 to the parties of record: Jennifer Henning Robert W. O'Connell,Jr. Neil Watts 200 Mill Avenue S 4620 200th SW 200 Mill Avenue S Renton, WA 98055 Lynnwood,WA 98036 Renton,WA 98055 Robert O'Connell,Jr. Plat of Whispering Pines File No.: LUA-97-135,PP,V February 2, 1998 Page 9 Nancy Bennett Richard Fisher 2612 Jones Avenue NE P.O.Box 969 Renton,WA 98056 Sequim,WA 98382 TRANSMITTED THIS 2nd day of February, 1998 to the following: Mayor Jesse Tanner Gregg Zimmerman,Plan/Bldg/PW Administrator Members,Renton Planning Commission Jim Hanson,Development Services Director Art Larson,Fire Marshal Mike Kattermann,Technical Services Director Lawrence J.Warren,City Attorney Larry Meckling,Building Official Transportation Systems Division Jay Covington, Chief Administrative Officer Utilities System Division Councilperson Kathy Keolker-Wheeler South County Journal Pursuant to Title IV,Chapter 8, Section 15 of the City's Code, request for reconsideration must be filed in writing on or before 5:00 p.m..February 16,1998. Any aggrieved person feeling that the decision of the Examiner is ambiguous or based on erroneous procedure,errors of law or fact, error in judgment,or the discovery of new evidence which could not be reasonably available at the prior hearing may make a written request for a review by the Examiner within fourteen(14)days from the date'of the Examiner's decision. This request shall set forth the specific ambiguities or errors discovered by such appellant,and the Examiner may, after review of the record,take further action as he deems proper. An appeal to the City Council is governed by Title IV, Chapter 8, Section 16,which requires that such appeal be filed with the City Clerk, accompanying a filing fee of$75.00 and meeting other specified requirements. Copies of this ordinance are available for inspection or purchase in the Finance Department,first floor of City Hall. If the Examiner's Recommendation or Decision contains the requirement for Restrictive Covenants,the executed Covenants will be required prior to approval by City Council or final processing of the file. You may contact this office for information on formatting covenants. The Appearance of Fairness Doctrine provides that no ex parte(private one-on-one)communications may occur concerning pending land use decisions. This means that parties to a land use decision may not communicate in private with any decision-maker concerning the proposal. Decision-makers in the land use process include both the Hearing Examiner and members of the City Council. All communications concerning the proposal must be made in public. This public communication permits all interested parties to know the contents of the communication and would allow them to openly rebut the evidence. Any violation of this doctrine would result in the invalidation of the request by the Court. The Doctrine applies not only to the initial public hearing but to all Requests for Reconsideration as well as Appeals to the City Council. r PLA T AT OF • WHISPERING PINES PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 • LEGAL DESCRIPTION PARCEL 3 PROJECT DATA 30TH ST. 4, tat SITE THAT PORTION Cr TRACTS 255,256,257.275,276,277 Cr CO. DOOTIA Z0 44 SWALE DAY 01-s) • HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DMAUI NO.4.ACCOROINO PROPOSED 201e6 saw DYLY(R-e) ICi TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS.PACE 82, SITE A�� 2•„Ad= RECORDS OF TONG COUNTY,WAS1/1NGTON.CESOBRED AS FOLLOWS LOTS PArnum IILOTS PER AM •�, ij .' BLOWING AT THE NORTHWEST CORNER OF TRACT 277; SWUM LOT 4002 SO.ILOT SIZE a=SO. L ID ` < < THENCE SOUTH 89'43'59'EAST 114.44 FEET ALONG THE NORTH UNE OF 4 SAID TRACT TO THE TRUE POINT OF BEGINNING. ROADS THENCE ST 001.06. 89'42$9'EAST 517.18 TEST. . THENCE SOUTH 0071'06'WEST 221.97 FEET TO A PONT ON THE SOUTH RCN,LINEAGE 421 aWAL ICII u/L UNE OF SAID TRACT 255; • 5 THENCE SOUTH 89'J9'33.WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF LOT SIZING TRACTS 255 AND 275; THENCE NORTH 00'33'45'EAST 80.05 FEED THENCE NORTH 89'2'I3'WEST 94.15 FEET TO THE BEGINNING OF CURVE TO CROSS SITE AAA(cSA).. L7S MOTES(121.364 SO.TT.) 12M ST: THE LEFT NANNC A RADIUS CF 20 FEET; mass PRMO=A/W MWA e34 ACRES(22,103 SO.n. THENCE ALONG SAID CURSE n/R001) A CENTRAL ANGLE Cr 89'34'02-. -ARM ofANT 0 tors ANT SPACE(MAT WAX 2.21 APES(0e.171 SO.ET.� nu NANNC AN ARC LENGTH or 31.26 FEET TO A PONT ON THE EAST LURE OF OWN AA¢(nu[r'tAARIA)AR 24.471 wn.(a2l KM)OATS 0 art ARTA 444M04 I0 ID MIN 0..�_SO MET JONES AVENUE; AWN N NAPO PM 22.1Fa SOJl.(o.se Auss)0.21N 0I SRC 4.42.4 THENCE NORTH 00'33'45'EAST 90 FEET ALONG SAID UNE: P THENCE SOUTH 00'J3'45'WEST'THROUGH A CENTRAL ANGLE OF 9075'S6' Z 2 i,.i . THENCEN AN ARC EAST 9129EFFEET; ` THENCE NORTH 00'33'45.EAST 94.40 FEET TO THE TRUE POINT OF NOTES SS BEGINNING C' 1./IS OIPEDt STRIOIIOR ARC 7506SED TO aC CCr61WATED 01 e6 SIL (ALSO KNOWN AS PARCEL 3 OF air OF RENT&N LOT UNE ADJJSTSENT NO. P a 0T0-86,RECORDED UNDER RECORDING NO.8609229011.) AIUATE N THE COUNTY or KING STATE OF WASHNGTO. VICINITY MAP OWNER / SURVEYOR / ENGINEER NO SCALE OWNER:' NANCY BENNETT 2612 JONES ARE.N.E. RENTON,WAIINGTCN 98056 N.E. 28TH STREET OWL ENGINEER: ROBERT W.O'CONNELL JR. RE NO.18093 •• SURIEYOR: KERN VANDERZANDEN P.L.S. NO.30427 J.i 4.:9u..t0.: 1/..0 . ever KNOWT CURVE 1 RADIUS 1 LENGTH 1 TANGENT I DELTA C AI C1 55.00' 50.59' 27.24' 52.42'0Y • • • • • 11111�11� � Et .f A C2 55.00' 24.14' 12.27' 25'08'45F • • • ■ e 1m1 C3 55.00' 37.62' 19.58' 39'11'3d 40 0 4(0 BD :1: � I '32'" "'�' C4 55.03' 35.52' 18.40• 37)0.13' SCALE/N fEET R C5 55.00' 22.87' 11.60' 23"49.16' • Lc 3Y u.r C6 25.00'A 1 11.97' 6.10' 2T26'2T' N & I x #am 'to''JIMU, a d 1S,Jrtw, �r y ` N 89'IS'S W 517.16' IS.I A 8 1t Yy r 0.29' 'L.:f'60.00' 3 F' .[60.00' I 90.07 ..I ►`6' 247.83' t y1 30'k�"BI • r Fe 15'OTY OF RENTON 2'� H ��9pp. SWAM A I S UDUTY EASEMENT -`j �J., . _ A.10 ZI'12'I Is�y,;O,2A. py A 2 n I I LOT 1 W W . R.5 - I 4 WETLANDS (TRACT'Al 3341902645 1r L•I✓+.27 aF' p.13135'32' 26.078 sq.ft. s ' r W 1 ) 2 T = 3 T,S 4 30 'N. R-50.00' m 5,866 aq.ft. P 8 5,89I aq.11. P 8 5.882 sq.fl. A 7.J77 sq., N 29'42'06'E ... \ L•11.43'\ 8 NOT PART OF S S S° 6.52' TRACT'X' A-3 1 THIS SUBDIVISION 2 z z 2e"'" , #`" A �:?43?eiZz6 6 /�' 8 10'mix PLANTER/ G.74'48'5 5, \"y J93 eq.0. \ .a W A-9075'S8' UTILITY t SIDEWALK R.25.00' tA `�A-1 n -�A-7 SAWr.Nr�W w� Z w 1 R.20.00' - = EASEMENT L.32.6J' �J. 151� a •WAWA, er r $� l•31.57' I 44 •i.... A-5 A-6! 71� \\\ N 8932'IJ'W 94.29' 6003' 60.00' 60.00' 20.66' u 4, - - - 5 a z- zs• a 8 -i', `�k 4`� 4• YY�44 k N.E. 26TH PLACE I _ $,: • e.�,. e /�° _ N 8952'f3-W 421.94"ti✓ -• 1S �\ry m0 wax 01� w R A Lyu - k 392.50' ,9 Pq' RIGHT-OF-WAY : ... \ _g • 91urr Pa[ ' 2 1i �� SL •¢1� I 25.195 aq.fL I yi T 'i ., arAIti POTE O g • . h. IS'ON ff ROOM LINTY[9-`I i - 1 �_- N 8939.031. g a1 T--�1 68.75' 60.75' 60.75' 35.54' C6~\ C4 4•�J JJ'1u� N 7 p 6&20 8 o-. N 8932I3 W 94,15 69'Sa'02' x SArrARr iA1.w AN/ .20.a0' _- -- �- 4 J• �•W W. as m 3 ) -3136' LOT 2 10'WIDE PLANTER/ .ea, A. U1NTY t ADEWAU( W ' 9 3343902E4?? m o W EASEMENT Y „ la 5 s a'"K*•* I o 0 11 10 ~ 9 8 n. 7 6 10 8.9I4 sq.ft. $ . 6 b u 5.773 s fl, g 2 5,762 s ft. 8 p 5,750••q.fl, t'2 5,603 aq.ft. 8 4 5,659 sq.ft, .,^ 7,223 aq.(t. :1 r j3t.3?1Zo2Q 30' ; NOT PART OF ,. °• i °• 8 a SR1a1711M99/CP 8 8 m ° THIS SUBDIVISION n >: 10'ODE ESM'T FOR `� • S 8 rSLOPE PROTECTION 2: y • zIf 4 ii 3 I 68.75' 66.75' 66.75-� -~ 69.00' 81.00' i 75.00' 86.33' lc ul L I N 8a'59'33'E ,517.62' D. I 1 34:i?i?I:?....,. „„1,:iei..,...i.i \ .•)3:i43:2ii36ii3 / • � 2 23 \ 22 I 21 I 20 I 19 DAM SCAM 12/05/97 1'-40' J . � Washington State Northwest Region Department of Transportation 15700 Dayton Avenue North P.O. Box 330310 Sid Morrison Seattle,WA 98133-9710 Secretary of Transportation (206)440-4000 lekA 16 6° '9 DATE: Januaryn 9, 1998 ye o'�`� V TO: Jennifer Toth Henning City of Renton, Project Manager 200 Mill Avenue South Renton WA 98055 Subject: SR 405 MP 6.72 CS 1744 Determination of Nonsignificance- Whispering Pines 11 lot plat File No. LUA-97-135,PP,V,ECF FROM: bert A. oseph o , PE, Manager of Planning & Local Coordination Washington State Department of Transportation Northwest Region 15700 Dayton Avenue North, MS 122 P. O. Box 330310 Seattle, WA 98133-9710 Thank you for giving us the opportunity to review this project, which is located 2612 Jones Avenue NE.. Our response is below: We have reviewed this subject document and have no comments. The Project will have no significant impact on the state highway system. If you have any questions, please contact Don Hurter at 440-4664 or Vickie Erickson at 440-4915 of my Developer Services section VEE:vee File Name IN .✓ AFFIDAVIT OF PUBLICATION NOTICE OF ENVIRONMENTAL Kristina Thompson, being first duly sworn on oath states that he/she is the Legal Clerk of DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE the RENTON,WASHINGTON SOUTH COUNTY JOURNAL The Environmental Review Committee (ERC)has issued a Determination of Non- 600 S. Washington Avenue, Kent, Washington 98032 Significance - Mitigated for the following project under the authority of the Renton Municipal Code. a daily newspaper published seven (7)times a week. Said newspaper is a legal PLAT AT WHISPERING PINES newspaper ofgeneralpublication and is now and has been for more than six months LU nviro meat l eV Environmental review for approval to prior to the date of publication, referred to, printed and published in the English language develop an 11 lot plat. Location: 2612 continually as a daily newspaper in Kent, King County, Washington. The South County Jones Ave.NE. Journal has been approved as a legal newspaper order of the Superior Court of the The 15 day comment and appeal period PP 9by P for this project will run concurrently. The State of Washington for King County. comment/appeal periods for this project will The notice in the exact form attached, was published in the South County end at 5:00 PM on January 5, 1998. Journal not in supplemental form) which was regularly distributed to the subscribers theWr Developmentten comments shall s forwarded to (andPP 9 Y the Services Division Land during the below stated period. The annexed notice, a Use Review Supervisor. Information on the project file and the mitigation measures imposed by the City of Renton's Plat at Whispering Pines LUA-97-135,PP,ECF,V Environmental Review Committee are :. available at the Development Services Division, Third Floor, Municipal Building, as published on: 12/22/97 Renton, Washington 98055. Phone: 235- 2550. Appeal procedures are available in The full amount of the fee charged for said foregoing publication is the sum of$56.15 the City Clerk's office, First Floor, Municipal LeLegal Number 4011 Building. g A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council Chambers on the Gt, second floor of City Hall, Renton, (y (� Washington, on January 13, 1998 at 9:00 AM to consider the Preliminary Plat and L Clerk, S uth County Journal Variance. If the Environmental Determina- , tion is appealed, the appeal will be heard �y� as part of this public hearing. Interested Subscribed and sworn before me on this d ay of , , 19 q8, parties are invited to attend the public ., hearing. ‘.,;i Published in the South County Journal `````,�1111 111//1�''' December 22, 1997.4011 c. o y:. kedi7121L-r l Notary Public of the State of Washington ;`;_e; NOTAgy y: residing in Renton —.-- _ King County, Washington - -i ''ust C, O ., �c�. •,A. 0/* Al Tr*, .4. >.CITY OF;RENTON; CURRENT PLANNING DIVISION AFFIDAVIT OF SERVICE BY MAILING On the (•+ , day of Zdh i , 199e, I deposited in the mails of the United States, a sealed envelope containing /*.Pori it -tine ttearvvi m‘r-r documents. This information was sent to: Name Representing ":2obeVT. O C-D V V C II 13r. rl .., - .v•v etr . k?Kcvarc. FisVer• tte,.hn.+ 'tiou.s. . r (Signature of Sender) %Milk k . S ..dntr— STATE OF WASHINGTON ) ) SS COUNTY OF KING ) I certify that I know or have satisfactory evidence that -a-c(g;a 7- ce e r._ signed this instrument and acknowledged it to be his/her/their free and voluntary act foI 'the uses and purposes mentioned in the instrument. \� Dated: c- aur, I( () $ J�a n c:4_,A Notary Public'th and for the State of VII�"shington Notary (Print) MARILYNkA CHEFF My appointmentM • COMMISSION EXPIRES 6/29/99 Project Name: per. of 1�1ntSpert Pih� Project Number: LUA•`1'1 • 135, PP. EC.ir, V NOTARY.DOC • • • : ::: ::is�iil7"l..S.::;'I. .::5:::i:Yy. • END .............................:::..::.. • ............................:...............................:...:... :M1tNiC1.N°...... CHAMBERS, SECOND LOOR, REN��N MU CICIP L UILDI CG :::Tha::::a hcat►.an.s.>::listed::::are:::in::>order.::.:>of:::a' i.icltx rt::::tum ber .: ::: :::: . :::::: .'es ;::: : :< d >::: ::the• >:. f>:b ;>:e :.:<:::> ::: PROJECT NAME: Renton Stadium Track& Field . PROJECT NUMBER: LUA-97-171,SA-H,SP,SM PROJECT DESCRIPTION: The Renton School District seeks site plan approval, a shoreline permit and a special permit for fill and grade to remove the existing crowned track and field facilities and replace them with new facilities. Location: 405 Logan Avenue North. PROJECT NAME: Plat of Whispering Pines PROJECT NUMBER: LUA-97-135,ECF,PP,V PROJECT DESCRIPTION: The applicant has requested preliminary plat approval and environmental review for the development of an 11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the.toe of the steep slope adjacent to a Category II wetland. The new lots would range in size form 5,603 square feet to 8.914 square feet. A two-story shop building would be demolished for the proposal. Location: 2612 Jones Avenue NE. AGNDA.DOC „ (,--3 , 1' - City of Renton PUBLIC Department of Planning/Building/Public Works- HEARING PRELIMINARY REPORT TO THE HEARING EXAMINER A. SUMMARY AND PURPOSE OF REQUEST: ' Public Hearing Date: January 13, 1998 Project Name: Plat of Whispering Pines ' Applicant/ Robert O'Connell;Jr. Address: 4620 200th Street, SW, Suite F - Lynnwood, WA 98036 ' Owner/ Nancy Bennett • Address: 2612 Jones Avenue NE Renton, WA 98056 File Number: LUA-097-135,PP,V;ECF Project Manager: Jennifer Toth Henning' Project Description: The applicant has requested preliminary plat approval and environmental review for •• the development of an 11-lot plat on 2.8 acres. A variance is also requested in order to,construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8.914 square feet. A two-story shop building would be demolished fog the proposal. Project Location: 2612 Jones Avenue NE • _ _.�----'- --- —E E N V{ 1 3 a �.' . ., lOTll T.., w !I."_• 55 54 I E I E� � I I j �'4�p•`i:�a� Y1 x S • J � I, °Na. },C14a Gla_ ( .I�6 p c . ,,, •`51 •� , 1.i'l. 6I . xis M�,tis.�n .1 r. j 2 j ' 1 r,,.. ,„,:is ), : j\ ii pl,; . . ' R a -a ,teis rt p;os 2.;N 1 • �� _ -27 ' � s� I 4(i 6 .�� JP‘tyl �� .u u r ..'..•( 1257 Qno ^�'' _W 3G ® ¢➢- Ifs• --rxT. ° qp a 231 I _ 'n,9” ra o n!1 276 Re 56 _• l'A 0 8 .yl ,� �YILII Yu: : •a 72 ! '2- a _•fi i2-TH Sr. 2 +•: 3 ,•••• x _ . _ w'' 0 ►e W e �:�c�l'°`� w .. 1 —_—sue S'._��-T" n — �.41, . .__---- aY a 2. rAr- ge I--24--Z`^`'=""_.' e , 3 0 n � 295 ._�� .� - rl a'.��1"• �=i c a s Di�¢ri �__ :f�/lQtrEti .. i,•.a (� ¢ `°' .bird lei ,H I��g. o � Y 'Q.r-*-.R,a e ti ::ro• ,'h"F„,,,.., �t xE ..1... .�,$1 043"•yr---¢ „,7' ;.,0 w gar 2 ...::. .r �u, N.E:... a 21TN 1' :�, Yl/: i ; xe .z,rM' s a o� . ;,� , 1I!'•r ''"-.___ ." ; • '�Q.e,2% �jla.p -ir101' 1 LkCF; I111`©:, �_ ,4,'.24.2, it -' IL1 e• Y tR '5x "a HH W" _ City of Renton P/B/PW Departmen. -'- - Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V, ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 2 of 11 B. GENERAL INFORMATION: 1. Owner of Record: Nancy Bennett, 2. Zoning Designation: Residential- 8 Dwelling Units per Acre (R-8) 3. Comprehensive Plan: Residential- Single Family Land Use Designation 4. Existing Site Use: pasture and shop building • 5. Neighborhood Characteristics: North: Single family residential • East: Single family residential South: Single family residential West: Single family residential 6. Access: via Jones.Avenue NE 7. Site Area: 2.8 acres 8. Project Data: area comments Existing Building Area: 2,500 s.f. shop to be demolished New Building Area: N/A Total BuildingArea: N/A C. HISTORICAUBACKGROUND: Action Land Use File No. Ordinance No. Date Annexation N/A 1818 3/8/60 Annexation N/A 1827 5/3/60 Lot Line Adjustment LUA-85-010,LLA 10/18/85 Lot Line Adjustment LUA-86-010,LLA Comprehensive Plan 4489 2/20/95 Zoning Code 4404 6/7/93 D. PUBLIC SERVICES: 1. ' Utilities: Water: Existing 12-inch water line in Jones Avenue NE. Sewer: Existing 8-inch sanitary line in Jones Avenue NE. East Kennydale Sewer Interceptor easement is located on the property. Surface Water/Storm Water: Storm facilities on Jones Avenue NE HEXRPT.DOC . City of Renton P/B/PW Departmen.'- - ' Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 3 of 11 2. Fire Protection: Provided by City of Renton 3. Transit: King County/Metro Transit provides service on NE 27th Street 4. Schools: Kennydale Elementary, McKnight Middle School, Renton High School (12th graders), Hazen High School (9th - 11th grade) . 5. Recreation: 'Kennydale Lions Park(NE 24th and Aberdeen) 6. Other: Located in Aquifer Protection Area.Zone 2 • E. APPLICABLE SECTIONS OF THE RENTON MUNICIPAL CODE: 1. Zoning Code- Residential:. Section 4-31-4.2 - Residential = 1 Dwelling Unit per Acre (R-1); and, Section 4-31-5- Residential 8 du/ac(R-8) . 2. Land Clearing and Tree Cutting Ordinance: Section 4-9 3. Wetlands Management Ordinance: Section 4-32 4. Street Improvements: Section 4-35 5. Subdivision Ordinance: Section 9-12 6. Parking and Loading Ordinance: Section 4-14 F. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN: 1. 'Land Use Element- Residential - Single Family Policy LU-34. Net development densities of 8 dwelling units per acre should be allowed in Residential Single Family neighborhoods. (pg. 1-10) Policy LU-23. New development within all residential designations should achieve a minimum density. The minimum density may be adjusted to reflect constraints on a site. (pg. 1-9) Policy LU-77. Sidewalks should be provided along both sides of residential streets. Sidewalk with should be ample to safely and.comfortably accommodate pedestrian traffic.(pg. 1-15) Policy LU-78. Trees should be planted along residential streets. (pg. 1-15) 2. Housing Element Policy H-4. Encourage infill development as a means to increase capacity. Policy H-10. Encourage small lot single family development. Policy H-15. Minimum density requirements should be based on net density and should exclude portions of the site constrained by sensitive areas, dedicated public or private rights of way and public facility requirements. HEXRPT.DOC . • City of Renton P/B/PW Department - - Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 4 of 11 3. Environmental Element Policy EN-29. Route stormwater run-off from new development to avoid gully erosion or landslide in ravines and steep hillsides. Policy EN-33. Use, maintain, and enhance the natural stormwater storage capacity provided in existing significant wetlands. Policy EN-70. Land use on steep slopes should be designed to prevent property damage and environmental degradation, and to enhance greenbelt and wildlife habitat values by preserving and enhancing existing vegetation to the maximum extent possible. Policy EN-71. Allow land alteration only for approved development proposals or approved mitigation efforts that will not create unnecessary erosion, undermine the support of nearby land, or unnecessarily scar the landscape. 4. Utilities Element Policy U-74. Design storm drainage systems to minimize potential erosion and sedimentation problems, and to preserve natural drainage systems including rivers, streams, flood plains, lakes, ponds and wetlands. Policy U-83. Existing natural drainage,watercourses, ravines and other similar land features should be protected from the adverse effects of erosion from increased storm water runoff. G. DEPARTMENT ANALYSIS: 1. PROJECT DESCRIPTION/BACKGROUND The applicant has applied to the City of Renton in order to subdivide an existing 2.8 acre parcel into 11-parcels suitable for the development of single family residential homes. The Preliminary Plat application is accompanied by a request for a variance from Code Section 4-9-5.D. in order to construct stormwater facilities down on a steep slope and adjacent to a Category II wetland. A 12-inch stormwater flow spreader would be built on the slope, and connect to a flow spreader located at the toe of the slope and adjacent to the wetland: Section 4-9-5.D states that: "No tree cutting or land clearing is permitted within twenty-five feet (25') of any shoreline area, within twenty five feet(25) 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 (40%) except, enhancement activities." The proposal was originally submitted as a 10-lot plat, but was redesigned to an 11-lot plat in order respond to City concerns regarding the location of existing. City utility easements. The Environmental Review Committee issued a threshold Determination of Non-Significance - Mitigated in December 1997. Mitigation measures addressing geotechnical concerns, Transportation fees, Parks fees, Fire fees, stormwater design and facilities were required of the applicant. The plat would result in the subdivision of the site into 11 lots ranging in size from 5,603 square feet to 8,914 square feet in size. Net density for the 11-lot development would be 5.94 dwelling units per acre once the right-of-way,wetland and steep slope areas are subtracted. A new public street, NE 26th Place would be extended from Jones Avenue NE to serve the 11 lots. The right-of-way would be 50 feet in width at its intersection with Jones Avenue NE and abutting the two lots at NE 26th Place and Jones (which' are not part of this subdivision proposal). The right-of-way width would be reduced to 42 feet within the plat, as permitted under HEXRPT.DOC City of Renton P/B✓PW Departmen --- - Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES • LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 5 of 11 the City's Subdivision Ordinance, and would terminate in a cul-de-sac. Thirty-two feet (32') of the right-of-way width would be roadway, and 6-foot wide sidewalks would be installed on both sides of the street. A 10-foot wide easement for utilities, planting strip and a portion of the sidewalk would be located in the front yard or pipestem area for each of.the proposed lots. The radius of the cul-de-sac would be 45 feet on the inside and 55 feet on the outside, in compliance with City and Fire Department,standards. Steep slopes (up to 65%) and a Category II wetland and buffer are located on the east portion of the site and take up approximately 0.60 acres. The applicant has proposed.to record a Native Growth Protection Easement for the slope, wetland and 50-foot wide buffer area. Storm drainage facilities consisting of an underground pipe on the slope and a flow dispersion facility would be constructed within the Native Growth Protection Easement. A stormwater vault would also be constructed underground in the cul-de-sac. The subject site is zoned Residential - 8 dwelling units per acre (R-8). The proposed plat requires preliminary plat approval, environmental review and a variance from the Land Clearing and Tree Cutting Ordinance in order to construct stormwater facilities. 2. ENVIRONMENTAL REVIEW Pursuant to the City of Renton's Environmental Ordinance and SEPA (RCW 43.21C, 1971 as amended), on December 16, 1997 the Environmental Review Committee issued a Determination of Non-Significance- Mitigated. 3. COMPLIANCE WITH ERC MITIGATION MEASURES 1. The applicant shall follow the recommendations of the geotechnical engineering study as prepared for the subject parcel by Earth Consultant, Inc.. Compliance: The applicant intends to comply with this mitigation measure. 2. The applicant shall pay the applicable Transportation Mitigation Fee, at a rate of$75.00 per each new average daily trip attributable to the project. The fee is payable prior to the recording of the plat. The applicant would need to revise the construction mitigation plan to restrict construction-related traffic to the hours between 8:30 a.m. to 2:00 p.m. during the school year, and to the off-peak hours between 8:30 a.m. and 3:30 p.m. during he months school is not in session, unless approved in advance by the Development Services Division. Compliance: The applicant intends to paythe applicable fee prior to recording of the plat. The applicant intends to comply with this measure. A revised construction mitigation plan is required prior to issuance of the construction permit. - 3. The applicant shall pay a Park's Department mitigation fee of$530.76 per each new single family dwelling unit. The required mitigation fee shall be paid prior to the recording of the plat. Compliance: The applicant intends to pay the applicable fee prior to recording of the plat. 4. The applicant shall pay the appropriate Fire Mitigation Fee equal to $488 per single family residential lot. The Fire Mitigation Fee is payable priorto the recording of the plat. Compliance: The applicant intends to pay the applicable fee prior to recording of the plat. HEXRPT.DOC City of Renton P/B/PW Department Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 6 of 11 5. a) The grading of the new intersection at Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. fl b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage control plans for the site shall be designed to discharge: one-half of the 2-year pre-developed discharge through the two-year design storm; one-half of the 10-year pre-developed discharge through the 10-year design storm;and, with overflow occurring when the 100-year design storm with thirty percent(30%) factor of safety detention are exceeded. d) The final drainage control plans for the site shall provide a split-discharge design to discharge the two-year (2-year) and ten-year (10-year) design storms directly into the wetland. Furthermore, the plans shall provide for the diversion of flows from storms greater than the ten-year design storm into the Kennydale Stormwater Interceptor. Compliance: The applicant intends to comply with these measures. 4. STAFF REVIEW COMMENTS Representatives from various city departments have reviewed the application materials to identify and address site plan issues from the proposed development. These comments are contained in the official file, and the essence of the comments has been incorporated into the appropriate sections of this report and the Departmental Recommendation at the end of the report. 5. CONSISTENCY WITH VARIANCE CRITERIA: The proposal to remove vegetation on a steep slope in order to construct the storm water facility line and to construct a flow spreader within 25 feet of a wetland would result in the removal of trees and vegetation. The applicant has applied for a variance from Code Section 4-9-10:C in order to cut trees and clear land in steep slope areas, and within 25 feet of a wetland. City Code Section 4-3149 F. states that the Hearing Examiner has authority to grant a variance upon making a determination, in writing, that the conditions specified below have been found to exist: a. That the applicant suffers undue hardship and the variance is necessary because of special circumstances applicable to subject property, including size, shape, topography, location or surroundings of the subject property, and the strict application of the Zoning Code is found to deprive subject property owner of rights and privileges enjoyed by other property owners in the vicinity and under identical zone classification: The applicant's proposal would result in clearing of a portion of the slope in order to install a buried stormwater line and a surface-mounted flow dispersion spreader at the toe of the slope. The presence of the steep slope and wetland reduces the area available to the applicant to develop homes. The proposal for 11 homes is at or near the minimum density of 5.0 du/net acre specified in the R-8 Zone, once steep slopes over 40%, the wetland, and the dedicated street right-of-way are subtracted from the overall site area The applicant's request for a variance to locate some of the site storm facilities on the slope and adjacent to the wetland is in response to a desire to meet the minimum net density requirements of the R-8 Zone. Furthermore, during the pre-application process, staff discussed a preference HEXRPT.DOC • City of Renton P/B/PW Departmenl - 1 Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 7 of 11 for the use of a flow dispersion facility rather than using a water quality facility, a swale, or a dispersion facility at the top of the steep slope. Location of the other types of facilities on the top of the bank could lead to destabilization of the steep slope and erosion into the wetlands. The line would be installed at depths of three to eight feet below the surface. The applicant has stated that they have proposed the stormwater facilities in this location in response due to site constraints, and in response to staff comment during the pre-application process. In addition, the City's Wetlands Ordinance (Section 4-32-4.A.9 and B.2) together allow the use of buffers and wetland areas for storm water discharges and storm water dispersion facilities as long as they meet the requirements and tests of the Surface Water Drainage Ordinance (Code Section 22). b. That the granting of the variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and zone in which subject property is situated: The applicant has stated that the construction of the facility would not damage the public welfare or injure the property or improvements in the vicinity. Indeed, the applicant argues that not constructing the facility could be damaging. It is possible to construct the discharge conveyance, a pipe, and dispersion facility outside the buffer and wetland area, however, it could constitute a threat to the downstream areas. The impact on the proposed plat, surrounding properties and the public welfare would allow for the release of storm waters at their natural location, dispersed to minimize chanelization and erosion of the wetland areas and it's buffer. Other potential options for handling the stormwater could increase impacts to the wetland and buffer through erosion and destabilization of the slope area. Staff will recommend that the applicant be required to revegetate areas disturbed as a result of construction of the stormwater facilities. For areas within the wetland buffer, revegetation should be accomplished in consultation with a wetlands biologist, or wetlands ecologist, or a Landscape Architect with expertise in wetlands. c. That approval shall not constitute a grant of special privilege:inconsistent with the limitation upon uses of other properties in the vicinity and zone in which the subject property is situated: The applicant states that the granting of the variance would permit the construction of storm water drainage facilities (including treatment and release) that minimize impacts to immediate and downstream areas. They maintain that this is a privilege allowed under code for all citizens. Staff notes that other properties constrained by steep slopes have applied for variances in order to construct utility systems to serve the sites. While circumstances of other plats vary, the approval of the variance as requested by Whispering Pines would not set a precedent for plats in the R-8 Zone. d. That the approval as determined by the Reviewing Official is a minimum variance that will accomplish the desired purpose: The proposal to install an underground storm water facility line on the steep slope and a flow dispersion facility within the wetland buffer is the minimum variance needed to accomplish the 11-lot plat, and meet minimum density of the R-8 Zone, while recharging the wetland area, protecting the stability of the slope, and preventing downstream impacts. • HEXRPT.DOC City of Renton P/B✓PW Department -' - Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 8 of 11 6. CONSISTENCY WITH PRELIMINARY PLAT CRITERIA: Approval of a plat is based upon several factors. The following preliminary plat criteria have been established to assist decision makers in the review of the plat: (a) Compliance with the Comprehensive Plan Designation. The proposal is consistent with the Comprehensive Plan designation of Residential-Single Family (RSF). (b) Compliance with the Underlying Zoning Designation. The proposal site is R-8, on the City of Renton Zoning Map. The proposed development would allow for future construction of up to 11 new detached single family residential dwelling units. Minimum lot size permitted in the R-8 Zones is 4,500 sf. The proposed plat provide 11 lots ranging in size from 5,603 square feet (Lot No. 8) to 8,914 square feet (Lot. No. 5). These lot sizes are smaller than other existing parcels in this area, but compatible with the R-8 designation that applies to other parcels located south of the subject site. Subdivision that has occurred south of the subject site reflects the minimum lot size of 7,200 square feet that was in effect for single family residential properties prior to adoption of the current zoning code and development standards. The R-8 Zone permits densities of 5.0 dwelling units per net acre minimum to 8.0 dwelling units per acre maximum. Net density is determined by deducting the right-of-way and sensitive areas from the overall site area. For this proposal dedicated road right-of-way, wetland area, and steep slopes (40% and greater) were deducted from the overall site area to determine net density. The proposal to develop 11 lots proposed would result in a net density of 5.94 dwelling units/acre. Based on staff calculations, the applicant would be permitted a minimum of 10 units or a maximum of 14 residential dwelling units based on the net density permitted in the R-8 Zone. (c) Compliance with Subdivision Regulations. Lot Arrangement: Side lot lines are to be at right angles to street lines, and each lot must have access to a public street or road. Access may be by private access easement street per the requirements of the Street Improvement Ordinance (Code Section 4-34). Proposed Lots 1, 2, 3, 4, 8, 9, 10, and 11 meet the requirements for side lot lines to be at right angles to streets. Lots 5, 6, and 7 proposed for the turning circle of the cul-de-sac are irregularly shaped and the side lot lines at the frontage intersect the cul-de-sac somewhat irregularly. However,the intent of the lot arrangement criteria is met. Lots: The size, shape and orientation of lots shall meet the minimum area and width requirements of the applicable zoning classification and shall be appropriate for the type of development and use contemplated. The proposed parcels would meet the minimum size, width, depth, shape and orientation requirements of the R-8 Zone. None of the lots would be considered to be corner lots. It appears that a home could be constructed on each of the new parcels. Property Corners at Intersections: All lot corners at intersections of dedicated public rights-of-way, except alleys, shall have minimum radius of 15 feet. The proposal would comply with the minimum radius requirement. HEXRPT.DOC City of Renton P/B/PW Department' -- Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 9 of 11 (d) Reasonableness of Proposed Boundaries. Access: The proposal would be expected to generate 105 new average daily trips (9.55 x 11 new homes). Access would be from Jones Avenue NE. A new street (NE 26th Place) would be extended from Jones Avenue NE to serve the plat. All of the proposed homes would achieve access from NE 26th Place. Objective LU-M of the Comprehensive Plan calls for more linkages within and between neighborhoods by developing a system of residential streets which serve both vehicles and pedestrians and creating a continuous, efficient, interconnected network of roads and pathways throughout the City. Policy LU-70 states that: "Streets, sidewalks, pedestrian or bike paths in a neighborhood development should be arranged as an interconnecting network. The extensive or predominant use of cul-de-sacs and pipestems should be discouraged for new development. A "flexible grid"pattern of streets and pathways should be used to connect adjacent and future development." The proposed plat would not provide the interconnecting street system envisioned by the policies of the Comprehensive Plan due to topographic and wetland constraints. The proposed cul-de-sac is appropriate given site sensitive areas on the eastern- portion of the site, and the inability to connect to the north/south street system given that existing development to the south accessing from NE 24th Street also terminates in a cul-de-sac. Topography: The site slopes from west to east. Slopes of up to 60% are present on the eastern portion of the property. No development of building lots is proposed in the steep slope portion of the site. The applicant has proposed recording a Native Growth Protection Easement for the steep slope and wetland portion of the site. Staff will recommend this as a condition of plat approval. The western portion of the property is generally flat (proposed lots 1, 2, 3, 9, 10, and 11). Slopes across proposed Lot No. 4 average 15%. Proposed Lots. No. 5, 6, 7, and 8, while relatively flat across the lots, have an existing 2:1 (50%) cup slope along the south properly line. This cut slope is located outside of proposed building envelopes. Slopes adjacent to the wetland (in the buffer area) are generally 40%. The applicant is required to follow the recommendations of the geotechnical engineering study as a mitigation measure. Relationship to Existing Uses: The subject property is presently used as pasture and is generally undeveloped except for a shop building on the site. Surrounding development is generally residential in character and has occurred on larger parcels. Subdivision of parcels south of the property has resulted in single family residential development on lots with a minimum size of 7,200 square feet. The proposal would differ in terms of average lot size from the existing residential uses surrounding it, but only for such time that those parcels remain undeveloped or underdeveloped based on current zoning. (e) Availability and Impact on Public Services(Timeliness). Police and Fire: Police and Fire Prevention Bureau staff indicate that sufficient resources exist to furnish services to the proposed development, subject to the condition that the applicant provide Code required improvements and fees. HEXRPT.DOC . City of Renton P/B/PW Department - u" Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 10 of 11 Recreation: The proposal would impact the local park and recreation facilities, however, no further conditions would be required to off-set those impacts, provided that the applicant pays the required Park Mitigation Fee. Schools: An 11-lot single family residential development would be expected to generate up to 8.4 students (4.9 elementary (0.443/home), 1.9 middle school (0.171/home), and 1.6 high school students • (0.145 per home)). The Renton School District was contacted regarding the proposal to construct 11 lots suitable for single family residences. A response was received and the School District indicated that they would be able to accommodate the additional students such a development would generate. The property is located in a transitional area for high school. If the project is lived in for the 1998/99 school year, 9th through 11th graders would attend Hazen High School, and 12th graders would attend Renton High School. The elementary and middle school students would attend Kennydale Elementary and McKnight Middle School respectively. Storm water: Approximately 0.68 acres of the subject site presently discharges to the west to Jones Avenue NE. Of this, 0.17 acres is impervious asphalt driveway, gravel parking area, and shop building roof. The east 2.11 acres is meadow, wetland,, buffer and slope area: The Environmental Review Committee requested additional information from the applicant regarding stormwater facilities that were being proposed in order to address potential off-site impacts. Four of the mitigation measures applicable to the plat are with regard to stormwater: (a) The applicant is required to grade the new intersection of Jones Avenue NE and NE 26th to insure that the runoff from the section is properly conveyed to the east side of Jones Avenue NE; (b)Infiltration discharge design is required where possible for the new homes; (c) the stormwater discharge system is required to be designed beyond City Code requirements; and, (d) the applicant is required to provide split discharge design to discharge the two-year and 10-year design storms directly into the wetland. • Water and Sanitary Sewer Utilities: Plat of Whispering Pines would be served by City of Renton Utility Systems for water and sanitary sewer. The project site is located within Zone 2 of the Aquifer Protection Area. An existing 8-inch water main is located in Jones Avenue NE which extends from NE 28th'Street to NE 24th Street. A 24-inch water main in also located in Jones south of the site, and an 8-inch water main is located in the subdivision to the south. The applicant is proposing to connect to the 8-inch main in Jones and run this line to the east property line. The proposal is located in the Kennydale Sanitary Sewer Subbasin. The proposed East Kennydale Sanitary Sewer Interceptor will be located on the site, a utility easement has been recorded through the property, and construction is to commence during 1998. There is an 8-inch sanitary sewer main that is located in.Jones Avenue NE and flows to the north. The 8-inch line will be extended from Jones to serve a portion of the plat's western lots (Lots 1-3, 9-11, and possibly Lot Nos. 4 and 8). The remainder of the plat (Lot 5 7, and possibly Lots 4 and 11) would tie directly into the East Kennydale Interceptor. The East Kennydale Interceptor would be located in an easement that generally separates the Native Growth Protection Easement from the lots. HEXRPT.DOC City of Renton P/B/PW Department - " Preliminary Report to the Hearing Examiner PLAT OF WHISPERING PINES LUA-97-135,PP,V,ECF PUBLIC HEARING DATE: JANUARY 13, 1998 Page 11 of 11 Street Improvements: A new public street, NE 26th Place would be extended from Jones Avenue NE to serve the 11 lots. The right-of-way would be 50 feet in width at its intersection with Jones Avenue NE and abutting the two lots at NE 26th Place and Jones. (which are not part of this subdivision proposal). The right-of-way width would be reduced to 42 feet within the plat, as permitted under the City's Subdivision Ordinance, and would terminate in a cul-de-sac. Thirty-two feet (32) of the right-of-way width would be roadway, and 6-foot wide sidewalks would be installed on both sides of the street. A 10-foot wide easement for utilities, planting strip and a portion of the sidewalk.would be located in the front yard or,pipestem area for each of the proposed lots. The radius of the cul-de-sac would be 45 feet on the inside and 55 feet on the outside, in compliance with City and Fire Department standards. H. RECOMMENDATION: ' Staff recommends approval of the Plat of Whispering Pines, Project File No. LUA-97-135, PP,V, ECF subject to the following conditions: (1) Compliance with ERC Mitigation,Measures: The applicant/owner is required to comply with the Mitigation Measures which were required by the Environmental Review Committee Threshold Determination prior to the issuance of a construction or building permit as applicable. (2) Drafting of a Homeowner's Association/Maintenance Agreement: The applicant/owner shall draft and record a maintenance agreement or establish a homeowner's association for the maintenance of all common plat improvements (stormwater detention vault, flow spreader, utility easements). A draft of the document shall be submitted to the City for review and approval by the City Attorney prior to the recording of the plat. (3) Establishment of a Native Growth Protection Easement: The applicant/owner shall define and record a Native Growth Protection Easement on the face of the plat for the steep slope and wetland area on the east portion of the property. -The applicant/owner shall adhere to the City Code requirements for such areas. Staff recommends approval of the Plat of Whispering Pines Variance, Project File No. LUA-97-135, PP,V, ECF subject to the following conditions: (1) Revegetation of Hillslope: The applicant/owner shall be required to revegetate the disturbed portion of slope immediately following installation of the stormwater line. For areas within the wetland buffer, revegetation should be accomplished in consultation with-a wetlands biologist, or wetlands ecologist, or a Landscape Architect with expertise in wetlands. Revegetation plans are subject to the review and approval of the Development Services Division project manager, and must be submitted and approved prior to issuance of a construction permit for the stormwater facilities. EXPIRATION PERIODS: Preliminary Plats (PP): Three(3)years from final approval (signature) date. Variance: Two (2)years from final approval date. HEXRPT.DOC CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) MITIGATION MEASURES APPLICATION NO(S): LUA-97-135,PP,ECF,V APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant,' Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a.11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal LOCATION OF PROPOSAL: 2612 Jones Avenue NE MITIGATION MEASURES: 1. The applicant shall follow the recommendations of the geotechnical engineering study as prepared for the subject parcel by Earth Consultants, Inc. 2. The applicant shall pay the applicable Transportation Mitigation Fee, at a rate of$75.00 per each new average daily trip attributable to the project. The fee is payable prior to the recording of the plat. The applicant would need to revise the construction mitigation plan to restrict construction- related traffic to the hours between 8:30 a.m. to 2:00 p.m. during the school year, and to the off- peak hours between 8:30 a.m. and 3:30 p.m. during the months school is not in session, unless approved in advance by the Development Services Division. 3. The applicant shall pay a Park's Department..mitigation fee of $530.76 per each new single family dwelling unit. The required mitigation fee shall be paid prior to the recording of the plat. 4. The applicant shall pay the appropriate Fire Mitigation Fee equal to $488 per single family residential lot..The Fire Mitigation Fee is payable prior to the recording of the plat. 5. a) The grading of the new intersection at Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly " conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage'control plans for the site shall be designed to discharge: one-half of the 2- year pre-developed discharge through the two-year design storm; one-half of the 10-year pre- developed discharge through the 10-year design storm; and,with overflow occurring,when the 100-year design storm with thirty percent (30%)factor of safety detention are exceeded. d) The final drainage control plans for the site shall provide a split-discharge design to discharge the two-year (2-year) and ten-year (10-year) design, storms directly into the wetland. Furthermore, the plans shall provide for the diversion of flows from storms greater than the ten- year design storm into the Kennydale Stormwater Interceptor. CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) ADVISORY NOTES APPLICATION NO(S): LUA-97-135,PP,ECF,V APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal LOCATION OF PROPOSAL: 2612 Jones Avenue NE Advisory Notes to Applicant: The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations. • Plan Review-Transportation 1. City Code states that the width of proposed residential street right-of-ways is required to be 50 feet. However, Section 4-34-12D. of the Street Standards states that reduced right-of-way dedication may be approved for residential access streets for new street within a short plat or subdivision to 42 feet when the extra area is used for the creation of an additional lot which could not be platted without the reduction, or when the platting with the required right-of-way width results in the creation of lots with less than 100 feet in depth. The Department may require additional easements be provided for the franchise utilities outside of the dedicated right of way when such a right-of-way reduction is approved. 2. The cul-de-sac is required to have a 55-foot radius and an improved paved cul-de-sac radius of 45- feet minimum. 3. Sidewalks are required adjacent to the curb. The sidewalks shall be a minimum width of six(6) feet. 4. Street lighting is required to City standards. 5. A traffic mitigation fee of$75.00 per each new single family residence will be required. The fee is discussed in the mitigation measures and is estimated to be$7,162.50 (9.55 trips x 10 new homes= 95.5 new daily trips x$75.00 per trip= $7,162.50). The fee is due prior to recording of the plat. 6. A vertical roadway profile is required during the review of the civil (construction) drawings. Also,the vertical profile at the approach to the intersection with Jones Avenue NE is required. Plan Review- Water 7. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant must be able to deliver 1,000 gallons per minute of fire flow. Hydrants must be located in conformance to Fire Department standards. 8. The Water System Development Connection Charge is$850 per lot. 9. Construction drawings are required to meet City of Renton Drafting Standards. 10. Water main extension size and valve locations need to be shown on the conceptual utility plan. • } The Plat at Whispering Pines LUA-97-135,PP,ECF Advisory Notes(Continued) 11. Pressure relief valves need to be noted and shown on the drawings if they will be required. 12. The construction plans should show the finished floor grades. 13. A vertical profile will be required during the review of the construction.(civil)drawings. Plan Review-Surface Water • 14. Drainage system and temporary erosion control plans for the site shall be designed in accordance with the 1990 King County Surface Water Design Manual, as adopted by the City of Renton. Surface Water(SDC)fees of$385 per each new single family lot will be required. 15. As part of the Kennydale Interceptor Project, a separate storm main will be constructed through the northeast corner of the site. The runoff form this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed, if the plat drainage system is constructed prior to construction of the new public storm sewer main. 16. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and an adequate quality control system. 17. The proposed project is located in the Aquifer Protection Area Zone 2. 18. Through curb inlet will be required at the bottom of the cul-de-sac and at vertical sags (two catch basins required so as to not cause flooding.) 19. The project is constructing more than 5,000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by over-sizing the detention vault, but no calculations were provided. The detention/water quality treatment wetvault has to be sized to meet the design'criteria for a wetvault in addition to the design criteria for a detention vault. The vault will need a minimum of one-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to one-third (1/3)the two-year, 24-hour storm volume, plus the required detention volume. The drainage report will need to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. Plan Review-Wastewater 20. The proposal will need to be coordinated with the City's Kennydale Sewer Interceptor,that has been designed to go across the plat (northeastern corner of the subject site). Construction of the Kennydale Sewer is expected to occur in the next year. 21. The project would be subject to a Water System Development Connection Charge of$585 per lot. Fire Prevention 22. The minimum fire flow for the single family structures is 1,000 gpm with one fire hydrant within 300 feet of the structure. If the square footage of any of the single family structures exceeds 3,600 square feet(total floor area including garage and basements),the fire flow would increase to a minimum of 1,500-gallons per minute (gpm)with,two fire hydrants required within 300 feet of the structure. 23.. The fire mitigation fees are applicable at the rate of$488 per single family building: Eleven (1.1) single family units x$488.00= $5,368.00. The fire mitigation fees are discussed under the mitigation measures. The fee is due prior to recording of the plat. Parks and Recreation 24. The Parks Mitigation Fee applies to this proposal and is discussed in Mitigation Measures. The fee will be charged at a rate of$530.76 per each new,single family residential home. The fee is estimated to be$5,838.36 (11 homes x$530.76= $5,838.36) and is due prior to recording of the plat. Property Services 25. Several comments regarding the preliminary plat drawings were submitted and will be forwarded to the applicant separately. The Plat at Whispering Pines LUA-97-135,PP,ECF Advisory Notes (Continued) General 26. All required utility, drainage and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a registered Civil Engineer. The construction permit application must include a itemized cost estimate for these improvements. The fee for review and inspection of these improvements is 5% of the first$100,000 of the estimated construction costs; 4% of anything over$100,00 but less than $200,000, and 3% of anything over$200,000. Half of this fee must be paid upon application for building and construction permits, and the remainder when the permits are issued. There may be additional fees for water service related expenses. • CITY OF RENTON PLANNINGBUILDING/PUBLIC WORKS MEMORANDUM DATE: November 21, 1997 TO: Jennifer Toth Henning '� RECEIVED FROM: Sonja J.Fesser�� SUBJECT: Plat of Whispering Pines LUA-97-135,PP Holt 9 j 1997 Format and Legal Description Review pEVELurrvitw r INNING CITY OF RENTON Bob Mac Onie and I have reviewed the above referenced long plat submittal and have the following comments: Note all existing easements of record on the drawing. The 15 foot City of Renton utility easement shown on the drawing is not drawn to conform to bearings and distances noted in the the utilities easement document recorded under King County Recording No. 8911170514. Please note that this recorded easement is not noted in the title report. Note that the existing two-story shop is to be removed. Note the appropriate quarter-section, section,township and range under the title information at the top of the drawing sheet. The proposed name of this plat has been used elsewhere in King County. Perhaps a different plat name should be considered. - Information needed for final plat approval includes the following: Note the city's land use action number (LUA-97-XXX-FP) and the city's land use action number (LND-10-0331) on the drawing, preferably in the upper right-hand corner. The type size used for the land record number should be smaller than that used for the land use action number. Please note that the land use action number for the final plat is different from the preliminary plat number and is unknown as of this date. Make ties to the City of Renton Survey Control Network.. See the attached. The geometry will;be checked when the ties have been made. Provide plat and lot closure calculations. Note discrepancies between bearings and distances of record and those measured or calculated,if any. 1 'November 7, 1997 Page 2 Include the basis of bearing,per WAC 332-130-050 1:b.iii. Include a statement of equipment and procedures used,per WAC 332-130-100. Indicate what is, or has been,set at the corners of the proposed lots. Note the date the existing monuments were visited,. per WAC 332-130-050 1.f.iv, and what was found. Note that jLthere are restrictive covenants or agreements to others as part of this subdivision,they can be recorded concurrently with the plat. The plat,drawing and the associated document(s) are to be given to the City Clerk's office as a package. The plat shall have the first recording number. The recording number(s) for the associated document(s) will be referenced on the plat in the appropriate location(s). Note to whom new easements,if any,are to be granted(private or City-held). An updated plat certificate is needed(dated within 45 days of Council action on approval of the plat). Addresses for the' proposed lots will be provided by the City after the preliminary review. The addresses will need to be noted on the drawing. The property owners' signatures need to be notarized and the signatures should be preceded with a certification and dedication block. Required City of Renton signatures are: the Administrator of Planning/Building/Public Mayor and the CityClerk. An Works, the approval block for the city's Finance Director is also required. Because this property is located within Zone 2 of the City of Renton's Aquifer Protection Area, the Aquifer Protection Notice needs to be noted on the drawing. See attached. Complete City of Renton Monument Cards,with reference points for new right-of-way monuments. Fee Review Comments: The Fee Review Sheet for this preliminary review is provided for your use and information.. • "•'./.::.'-'1.--- ' PROP,. ;'V SERVICES FEE REVIEW FOR Silt /ISIONS No..97- `'' ;:..'`- - ._`APPLICANT: � �� .�:•.:... -1E5 11�1 MTT- ) K1,1 1-ICY - • RECEIVED FROM JOB ADDRESS: a .fZ l()�! � Z- PJtELIMINARyNTUROR REVIEW. F SUBDI JSION'B LONG LA LND I� - o��s SHORT PLAT,BINDING SITE PLAN,ETC.. ND s 0 VICINITY MAP •NE D MORE I ORMATION:• ❑-LEGAL•D 0 FINAL REVIEW OF SUBDIVISION,THIS REVIEW REPLACES 0 SQUARE FOOTAGE 0 OTHER ESCRIPTION PRELIMINARY FEE REVIEW DATED 0. FRONT FOOTAGE' X SUBJECT PROPERTY PARENT PID# 3�,d.3gQ-2�4- X NEW KING CO. TAX ACCT.#(s)are required when assigned by King County. It is the intent of this development fee analysis to put the developer/owner on notice,that the fees quoted below may be applicable to the subject site upon development of the property. All quoted fees are potential charges that may be due and payable at the time the construction permit is issued to install the on-site and off site improvements(.e.underground utilities,street improvements,etc.) Triggering mechanisms for the SDC fees will be based on current City ordinances and determined by the applicable Utility Section. Please note that these fees are subject to change without:notice. Final fees will be based on rates in effect at-time of Building Permit/Construction Permit application. ❑ The existing house on SP Lot# addressed as has not previously paid SDC fees,due to connection to City utilities prior to existance of SDC fee Ord: SP LoW subject to future. SDC fees if triggering mechanisms are touched within current City Ordinances. will be XWe understand that this subdivision is in the preliminary stage and that we will have the opportunity to review it again before recordation. The following quoted fees do NOT include inspection fees,side sewer permits, r/w permit fees or the cost of water meters. I SPECIAL ASSESSMENT DISTRICT I PARCEL METHOD OF DISTRICTS ASSESSMENT ASSESSMENT Latecomer Agreement(pvt) WATER NO. NO. ASSESSMENT UNITS OR FEE Latecomer Agreement(pvt) WASTEWATER • -o- Latecomer Agreement(pvt)OTHER -ri - Special Assessment District/WATER _� Mom lug• ISEtj>=bt� G► tbl /-c)- Special Assessment D'utrictlWASTEWATER 1 � VAL '�3{oboL�y 4j= �utlp U Joint Use (METRO) �yb'7'S1.I�>=` S `, ) i` Agreement Y �� . � >=Cl-r(S SYa'��1--t , Local Improvement District -o - Traffic Benefit Zones $75.00 PER TRIP, CALCULATED BY TRANSPORTATION -o FUTURE OBLIGATIONS -o - SYSTEM DEVELOPMENT CHARGE-WATER ❑ Estimated -0- l/OF UNITS/ SDC FEE 0 Pd Prev. 0 Partially Pd(Ltd Exemption) 0 Never Pd Single family residential$850/unit x SQ. FTG. Mobile home dwelling unit$680/unit in park In 8,`- •.0 0 Apartment, Condo$510/unit not in CD or COR zones x __ Commercial/Industrial, $0.113/sq. ft.of property(not less than$850.00)x Boeing,by Special Agreement/Footprint of Bldg plus 15 ft perimeter(2,800 GPM threshold) SYSTEM DEVELOPMENT CHARGE-WASTEWATER 0 Estimated -❑ Pd Prev. 0 Partially Pd (Ltd Exemption) 0 Never Pd Single family residential$585/unit x Mobile home dwelling unit$468/unit x IC) 5,890. 00 Aprtment,Condo$350/unit not in CD or.COR zones x • Commercial/Industrial$0.078/sq. ft.of property x(not less than$585.00) SYSTEM DEVELOPMENT CHARGE-SURFACEWATER 0 Estimated ❑ Pd Prev. 0 Partial,' Pd(Ltd Exem Lion) 0 Never Pd Sin le famil residential and mobile home dwelling unit$385/unit x Ief,All other properties$0.129sq ft of new impervious area of property x 3,850.00 (not less than$385.00) � yy I PRELIMINARY TOTAL $ l8 Zoo.�---5 —t V)l/ht n ) Sc .4).nFh ) ?FLU 5 3}' �e Signat�tf¢of R vim 1 VI c1,97 �, IIVJJ g Authority bATt is�� t�cri - -, 0 *If subject property is within an LID, it is developers responsibility to check with the Finance Dept. for paid/un-paid status. ❑ Square footage figures are taken from the King County Assessor's map and are subject to change. /��, 0 Current City SDC fee charges apply to `y ro' 0 c:/template/feeappl/tgb EFFECTIVE July 16, 1995/Ord. Nos. 4506, 4507,4508, 4525, and 4526 Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development Services EIS Review November 10, 1997 WATER: 1. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant will deliver 1000 gpm of fire flow. This condition is not met on conceptual plan. Hydrant location must be acceptable to the Fire Department. 2. The Water System Development Connection charge is$850 per lot. 3. Construction drawings to meet City of Renton Drafting Standard. 4. Main extension size and valve locations not shown on conceptual plan. 5. Pressure relief valves to be noted and shown if needed. 6. The construction plans to show the finished floor grades. 7. A vertical profile will be required for the construction plans. 97cm180W 97CM180W.DOC1 WHISPERING PINES PLAT 2612 Jones Ave NE EIS Review Development Services November 5, 1997 TRANSPORTATION: 1. The right-of-way width is required to be 50-feet for the proposed 26th Place NE roadway. 2. The Cul-de-sac is required to have a 55-foot right-of-way radius and a improved paved cul-de- sac radius of 45-feet minimum. 3. Six(6)foot sidewalks adjacent to the curb is required. 4. • Street lighting required to City Standards. Note: The proposed plans do not appear reflect all of the above requirements 5. The transportation mitigation is $75 per new trip generated for a 24-hour period. The rate is based on the ITE trip generation manual. 6. A vertical roadway profile.required. Also include the vertical profile at the approach to the intersection with Jones Ave.NE. 97CM178.DOC\ • CY Ar "'ii ,;•�: .':P..., vY.larro..ar•. ..�•►y+..ts7�!.R?!xf,.a��:oq.«.0.....,.w.�.,,,e�y,kN. .. .. _ '.,Y,:<?4�•a�+c„r..ai.•q.:rw..c,.•-wari..»x;.�.:,,iA,Y.:�n,�..wx Project Name 5f-evitt." Pnr�r� Plrc� Project Address 2612_ Jcite5 Ave i'JE Contact Person 12c1,ty t C� Coil rye(I t j v. Address 4620 - 200-61 St. SlL scold f , Ltyt.iwdoc( OA 9 $036 Phone Number (206 ) - 712. - e 2S . • Permit Number LLA - (37 - 135 Project Description l0 107 5lbt;O Ir 4111,111w is Land Use Type: Method of Calculation: 0/Residential ["ITE Trip Generation Manual ?.5 5 tv,ps ❑ Retail 0 Traffic Study ) lci ❑ Non-retail 0 Other Calculation: N<-T ma) kohl tv►ps (`t.55) (l&) -4 q5, 5 G{m/7 �vio kohl ; Fl f $7 5. �.�, -t ri f ( , 5 ) ( 75) = $ 7 / 62 . 50 Transportation Mitigation Fee: 7162, 50 Calculated by: Ai Wa Date: 1D/311/47 Account Number: ' Date of Payment Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development_Services EIS Review November 10, 1997 SEWER: 1. Street name labeling on drawings are incorrect as shown. It should be written as follows: NE 26th P1. for roadway inside the plat. 2. This project is to coordinate with City project planned for this fall for the Kennydale Sewer Interceptor going across the northeastern corner of the proposed site. 3. The Waste Water System Development Connection charge is$585 per lot. STORM DRAINAGE: 1. As part of the Kennydale Interceptor Project,a separate storm main will be constructed through the northeast corner of the site. The runoff from this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed, if the plat drainage system is constructed prior to construction of the new public storm sewer main. 2. The System Development Connection charge is $385 per lot. 3. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and a adequate quality control system 4. The proposed project is located in the Aquifer Protection Zone 2. 5 Through curb inlet required at bottom of cul-de-sac and at vertical sags (2 CB's Required so as to not cause flooding. 6. Vertical profile plan required and note all utility crossings. 7. The City will not maintain the proposed detention vault. Therefore a homeowners agreement document will be require to maintain the vault. The following comments are from a memorandum to Clinton Morgan from Ron Straka. 8. The project site does not drain to the Cedar River as indicated in the drainage report. The site drains to May Creek and Lake Washington. Page 5,paragraph 3 of the report needs to be corrected. 9. Storm drainage improvements are required at the intersection of Jones Ave.NE and 26th Pl.NE (the new plat Street). A cross culvert under 26th Pl.NE is required to convey runoff along the east side of Jones Ave.NE. 97CM180D.DOC\ 10. Soil types indicate that infiltration of storm water runoff from the site is feasible,but the Engineer has rejected it according to the drainage report. Infiltration of the runoff is preferred. 11. The surface Water utility and Wastewater Utility have a recorded 15'utility easement over the project site. The location of the existing utility easement is shown incorrectly on the project plans and needs to be corrected. John Hobson of the Wastewater Utility will provide the applicant a recorded copy of the Utility Easement upon request. 12. The Surface water Utility and Wastewater Utility will be constructing a storm system interceptor and sewer interceptor in the recorded utility easement in 1998. The onsite drainage system could be designed such that the predeveloped runoff(allowable release rate)for up to the 2-year and 10-year storm events could be discharged to the wetland on the site to maintain wetland hydrology. The storm water releases associated with storm events greater than the 10- year storm could be discharged to the proposed new storm system interceptor. The project will increase the peak rate of runoff and volume of runoff being discharged to the wetland,which flows in a small stream between homes to May Creek. The increase in volume of runoff and peak rate due to model inaccuracies could adversely impact the wetland and the downstream properties. 13. The project is constructing more than 5, 000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by oversizing the detention vault,but no calculations were provided. The detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design. criteria for a detention vault. The vault will need a minimum of 1-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to 1/3 the 2-year, 24-hour storm volume plus the required detention volume. The drainage report need's to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. 97cm180d • 97CM180D.DOC\ • „ • .S`CY O O + AMR + CITY OF RENTON 4/,;N2o FIRE PREVENTION BUREAU MEMORANDUM DATE: January 27, 1997 TO: Jennifer Henning, Planner • FROM: Jim Gray, Assistant Fire Marshal .11 SUBJECT: Whispering Pines Plat, Jones Ave. & NE 27th CT. Fire Department Comments: 1. A fire hydrant with 1000 GPM fire flow is required within 300 feet of all new single family'.structures. If the square footage of the structure exceeds 3600 square feet in area, then the fire flow increases to a minimum 1500 GPM.and two hydrants are required within 300 feet of the structure. 2. A fire mitigation fee of$488.00 is required for all new single family structures. Please feel free to contact me if you have any questions. • • • Cit) ,:enton Department of Planning/Building/r- c Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW ,SHEET REVIEWING DEPARTMENT: pa .a COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell, Jr. . PROJECT MANAGER: JENNIFER TOTH HENNING PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 • LOCATION: 2612 Jones Avenue NE • SITE AREA: 2.8 acres I BUILDING AREA(gross): 'N/A SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information impacts Impacts Necessary - impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities ' Animals Transportation Environmental Health Public Services Energy/ - Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS q ,P14 /60-77?-0/-7 /11, 530 C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas In which we have expertise and have Identified areas of probable Impact or areas where additional Information is needed roperfy assess this proposal. 1 'A gnatu a of D rector or Aut'or' ed Representative Date DEVAPP.DOC • - PRELIMINARY PLAT OF 1 WHISPERING PINES PARCEL 3 OF CITY OF RENTON' LOT LINE ADJUSTMENT NO. 010-86 , LEGAL DESCRIPTION PARCEI.3 _ PROJECT DATA 30TH or. 41 pat SITE THAT PORTION OF TRACTS 255,256,257,275,276,277 OF C.D. COSMO NNS SINGLE LE FAULT(IT-•) . HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION 0N NO.4,ACCORDING S• Ci TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS,PAGE 82. SPE AGEVE'----^'^- .. ..-'-2.79 ACRES ' AL RECORDS OF KING COUNTY,WASHINGTON,DESCRIBED AS FOLLOWS • LOTS P PPER o * -- 1CRE 111., _ i ' BEGINNING AT THE NORTHWEST CORNER CF TRACT 277; ASMALLEST LOT 603 S FT. aD THENCE SOUTH 89'43'59'EAST 114.44 FEET ALONG THE NORTH LINE OF • SAID TRACT TO THE TRUE POINT OF BEGINNING; ROADS M 3 THENCE CONTINUING SOUTH 89'43'S9'EAST 517.18 FEET: THENCE SOUTH 00'34'06'WEST 221.97 FEET TO A POINT ON THE SOUTH R01D IlK/AZ_._�_._�_.___._.-.�.-_.421 IfEAI,TEi u/L E o x LINE OF SAID TRACT95 255; • _ w THENCE SCUM 8959.33'WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF LOT SIZING TRACTS 255 AND 275; THENCE NORTH 0013'45'EAST 80.05 FEET; - • 12TH ST. THENCE NORTH 8952'13'WEST 94.15 FEET TO THE BEGINNINGGROSS OF GIJRVE TO SRE AREA(OSAk- ----L79 ACRES(121,M•4 5O.FT.) THE LIFT HANNG A RADIUS OF 20'FEET; mran 10D AREA MSS AGES(25.195 50.FT.) MR THENCE ALONG SAID CURVE THROUGIJ A CENTRAL ANGLE OF 89'34'02% -AREA 00 N 1015 AIM OPEN SPACE(TRACf'AA'Y)-.-... .221 ACRES 96.'71 SO.FT.) HAVING AN ARC LENGTH OF 31.26 FEET TO A POINT ON THE EAST UNE OF a511 SPAG ow.Wort)ABA -24.471 msW.(aN AGas)0s29 OF suc AREA JONES AVENUE; AREA pPOS D R/A' .. -_25.195 SO/T.(03•ACRES)021E OF S IE,W THENCE NORTH 00'33'45'EAST 90 FEET ALONG SAID LINE; THENCE SOUTH 00'33'45'WEST THROUGH A CENTRAL ANGLE OF 9025'S8' )1. • ' HAVING AN ARC LENGTH OF 31.57 FEET; THENCE SOUTH-8952'13'EAST 94.29 FEET;THENCE NORTH 00J3'45-EAST 94.40 FEET TO THE TRUE POINT OF NOTESiBEGINNING x1.NO 41 506 SIRIIET1. ARE PROPo 9D TO BE ORGTR TUI ON T1.5 snE. 0 0-86,RECORDED ALSO KNOWN AS UNDER RECORD N NO.86119229011.)CEL 3 OF C/TY OF RENTON LOT E ADJUSTMENT NO. a SITUATE IN THE COUNTY OF KING.STATE OF WASHINGTON. VICINITY MAP • • . OWNER / SURVEYOR / ENGINEER NO SCALE OWNER: NANCY BENNETT • • 2612 JONES AVE.N.E. RENTON.WASTINGTON 98056 • N.E. 28TH STREET CIVIL ENGINEER: ROBERT W.O'CONNEU,JT. P.E. NO.18093 •,•.-• 't'>9a '�WO/ANT KEVIN VANDERZANDEN P.L.S. NO.30427 '"'" """ "'" i CURVE I RADIUS I LENGTH I TANGENT I DELTA -•I CT 55.00' 50.59' 27.24' 5742.07' ■.NNt••t•Nt•N�- C2 55.00' 24.14• 12.27' 25'08'49' Sg ••••-••••••••-•••• C3 55.00' 37.62' 19.58' 39'll'36� .�Q O 40 80 kIL : c4 ss.00• 3s.sr 18.40• 37vo'1r SCALE/N FEET g a I C5 55.00' 22.87' 11.60, 2349'18- �, Jr K15 CO 25.00'A 1 11.97' 6.10' 2726'21' il SO.TED 1e'1m FR N 89'43'S9'W 517.18' IS'I A • tl ' T I 1 F •59.29' 060.00' - 60.00' 90.07' -f ►'.a. - 247.83' 12 Gmumr 'il 30-.it I �4.JJ 2a 15'CITY OF RENTON 2"L...._y. .L• UnUTY EASEMENT -.7 : 1 I J? s H I I LOT I a a s'21'12'1 I o.T P. oz \A-2 • :i:i+:3:•i'E):: :: 2 3 L-1.' ` +,` n-laos'3z - WETLANDS26TRy sq.ft. 'A') R` 1 •m 5,866 sq.ft. g m 5.891 sq.ft. Po 1m 5.882 sq.ft. g m 7.377 sq. ss N 29'42'06'E K44'V L e 50� NOT'PART OF 1s /�] I THIS SUBDIVISION z 2e m w' 6.52' TRACT'X' A 3 • -..•.•......,•..: X - W R 90'25'SB' 0 10'WIDE PLANTER/2 74� 5 �Z 393 sq.ft. •20 vig cwRARr a•rn&V 2 MITT k SIDEWALK R 25.00' �o A-4 1 n w 1 R 20.00' • EASEMENT L 32.6J' 3 -�A-7 k GMW.1nr yJ. ; L e 31.5Y I �• a 5 Z IN N 8952'13'W 94.29' • 60.03' • 60.00' 60.00' 20.68'' V 4 Q• •A-5 -6- a a_8 A, I) a`� •4R g F N.E. 26TH PLACE I " 25 ' • m' • d [12 0 N 8932'13'W 421.94_ t •` � '0t- .y N _ _ _ _ _ �YWli(I.'•m0l3OSiB1 m ;.I W ry J9250' - 9-.'BE'• i' yam PGE ZZ ! ® k .N , I RIGHT-OF-WAY ,s - O e '�' 'P ��cc ..// 25.195 sq.ft. _• o 15'an,CF R(NTGL UMW F91T UIMtt PGE *5 *`•"N , W N 8959'33'E ~ I. 68.75' 68.75' • 68.75' - 35.54' C61� __ It SWAM'SD.WV �1 89'34'02' N 895213 W 94.15 0 T -.� C4 N3i tg.u AFT N 7j0, 6B.ZOrR�F g 20.00' 7 E A tut A • _31.26' LOT 2 10'WADE PLANTER/ .ta 9 .., ��W I. •,,, m UTILITY&SDEWALK w 69• k • 2• :i3G:i::::.:S::u • EASEMENT N °"RE'A' 3$ • 11 10 9 Z 1 8 13 7 a915: «. ' q o q 8 ( M 7250 q.ft. o m 5,603 sq.ft. o 5.659 sq.ft. 7,2236sq.ft. q'E 5,773 • s ft 5,762 s !t. i ;1 n yY_•Vy••"•-V NOT PART OF m 5 G r SHOP w THIS SUBDIVISION e : " ' 10'WIDE ES5'T FOR 8 m 1� 8 SLOPE PROTECTION 'F 4 - L 68.75' 68.75' _--68.75'---_' 69.00' 81.00' z 75.00' f 86.35' N 8959'33-E 517.62' SUNSEiT HILLS P. 23 \ 22 1 21 I 20 I 19 / DATE SCALE 12/05/97 I 1''40' a~n PI WHISPERING N.E. 28TH STREET PRELIMINARY PLAT OF 1 p 1� f • PARCEL 3 OF CITY pRENTON LOT NE ADJUSTMENT NO. 010-66 (np A• Rat./a (ploy 9•Si 16 16 9.9n EN . n JO 0 �o 60 NOTE t . $S ...(Tm) SCALE hV FEET • ALL TREES LUNG ALONG 26TH AVE N.E. 40 N b TO BE REMOVED < -- 3343902181 3313902180 y Z�Z s 3 a z T.° PROPOSED ROAD SECTION aacDw N.T.S. r- ,' ' A o W=Z W .,°•: J 3902845 6c „// \ i _'4, \u,U 6.m ``1 e[ 3 V\ a I r r ----7 r\ 2tlnWn 5 r—� �; �' \\ • LOT 1 a I I I gI \\ Ala \ �\\ ' i '\.- {-1 I I ' :( LaT`I� 1 LOT 2 LOTS I I L,• 4.' �y,•:.,. !` m.Tay\\•,- FLOW SPREADER WETLANDMOM S • . I : . I yry I A=..ET ''64.: ua°Su FT a®m r I I TAN••01/._••' "'y, !tiiy III�� I I 614 t+w . I I f I / ' _ `—� _ JSusozo6l v W. • oP ....1. {\ �., ,,t\ a>fWw(TIP)/, L L J L_y`M-__I L )11\1‘. \�\ — \ =p • wo0.BE �y \` •�` cr..'• __ .eo . , To.Nt. netl �� 4,` \.�\� ' • \ •-, .7TIr�T F, s` w N A r".'°" TH PL. o� \ Ts H W s, 1,` :T.; Ni .' f -:� 4'a--•:•� ui - SYu•• :.-+`• � R -AREA w.. \. _•l'. �Y ., l = .. ( _ .. v... .w Ir 55- -��ULLIDT,rtT L.,-- - - i. ra=mWa ' JN3902810 \ 9s -,� \ / 1 ,I !\/v. \ I I I \1--3 �..-.� I1 �1 r \ 1s s P ,IDTIYAaL ` ,•�' ..!,. `g I .. I 1 I I - \I I �\ I I \ _ "I .' Irg 1' : \ I 54°xilnl 1 ZI ,,,k;n1n 111 -,,,e�°wr vt - •I a1• .i°m R `) I---8.8RG w.n._-_ l 1.- LOT 6. I : a�°wir; .RI ,o 1 _ of 1 .ut3so21zo Ili a "oD° Jtl ; LOT 2 .,'� ----, I I . i. 1- .--:L'. -' ' I \— __ I — _`"° i I �_ .._ J I 5.1 i � L TJ L---- —J'-. L'' a.m •_'J rm.-- - ivnnei _- J L f.,a a Na.�T 1 „. �.wrua • w a:nm 1.I — 10.03.VC Y —'a°tl K— — _ LEGEND • . 9 E b \ PROPOSED WATER UNE g gyy za W ^ I —WATER EXISTING WATER WE a / -•�r�"""::: • 156 —SAN SEWER— USW.SAN SEWER I - *ON SS PROPOSED SANITARY SEWER UNE 6,A-1 WETLAND MG OWNER I a1D14 VALLT OWNER: NANCY BENNETI 1 tV�. 1'1J.00 AwE. - 2612 JONES AVE.NE. ' (y, oNW Stl0l RENTON.WASHINGTON 98056 EN y� b SBRKYOR: NEON VANDERLWOEN P.L.S. N0.20122 c.wan r,LI ' �y6,O'COA.N THE . !vTr w+) '4 1/ "� ,, 0 wNN�J, al Dome•IanADN l '9Zoli i�sff .Ti: ':' F L AND � w MnS.•r - S 'C :.. 6 BY61.oPE�T (�T, :TN y�` • 8�VIC® aux 1.2 a a.a0 .. s—� GROUP 9 N.E.26TH PL. A—NNNNAA • PRELIMINARY PLAT OF — a" a e� SHEET INDEX • - =,z- OWNER WHISPERING PINES (�� OWNER. NANCY BENNETT 1. COVER SHEET a RESIGNNES A N.E. 9BD56 PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 2. SURVEY a d CIVIL ENGINEER: ROBERT W O'CONNELL.JR. P.E. NO.18093 3. SITE PLAN El. SURVEYOR: KEVIN VANDER2ANOEN P.L.S. NO.30427 ' EL 4. UTILITY PLAN 5. GRADING PLAN oo,� LEGAL DESCRIPTION PARCEL 39xs III SITE t z .4...T W C THAT PORTION Of TRACTS 255,256,25),2)5,2)6,2])OF CD. Q r(10-Z- HILLMAN' LAKE WASHINGTON GARDEN OF EDEN DIMSION NO 4,ACCORDING (A EL Z TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS,PAGE B2 • (',-Z m Z RECORDS OF KING COUNTY,WASHINGTON,DESCRIBED AS FOLLOWS: >?t o FX z THENCE SOUTH 89'4.NORTHWEST CORNER OF ALONG THENORTH UNE OF . W,LAKE ANG1ai. BENCHMARK • 0 V,Z W SAID TRACT TO THE TRUE POINT OF BEGINNING: K END.6"ROUND CONCRETE MONUMENT W/NAIL IN CASE. 0 W=Q EC THENCE CONTINUING SOUTH 89'43'59"EAST 517 18 FEET; Div a 239)) F D_3 Z THENCE SOUTH 00'J4'06"WEST 221.97 FEET TO A POINT ON THE SOUTH LINE OF SAID TRACT 255: d { THENCE SOUTH 8959'33"WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF ST, TRACTS 255 AND 275: Ng THENCE NORTH 00.33'45'EAST 8005 FEET; THENCE NORTH 8952'13"WEST 94.15 FEET TO THE BEGINNING OF CURVE TO I THE LEFT HAVING A RADIUS OF 20 FEET; 4 THENCE ALONG SAID CURVE THROUGH A CENTRAL ANGLE OF 89'34'02 DATUM HAVING AN ARC LENGTH OF J1.26 FEET TO A POINT ON THE EAST LINE OF Y JONES AVENUE: THENCE NORTH 00'33'45"EAST 90 FEET ALONG SAID LINE: ,P CITY OF RENTON THENCE SOUTH 00'33'45'WEST THROUGH A CENTRAL ANGLE OF 90'25'58" HAVING AN ARC LENGTH OF 31.57 FEET; o THENCE SOUTH 8952'13'EAST 94.29 FEET; THENCE NORTH 00'3345"EAST 94.40 FEET TO THE TRUE POINT OF 0E BEGINNING. ID O (ALSO KNOWN AS PARCEL 3 OF CITY OF RENTON LOT LINE AD.USTMENT NO. _ •7"Z n 010-86,RECORDED UNDER RECORDING NO.6609229011.) VICINITY MAP a En(E a T s SITUATE IN THE COUNTY OF KING,STATE Of WASHINGTON • A U a. $E NO SCALE ,1 SERVICING UTILITIES COMPANIES 4 11 `°' N.E 28TH STREET I 10 0 IC 80 r- 319 5.POWER: 319 0 WASHINGTON NATURAL GAS. _ -— SCALE/N FEE/ n� 319 S.THIRD STREET RENTON. S THIRD STREET (A2S)RENTON, - 98055 RENION. 98055 (425)455-51z0 (425)382-7858 -...u,......III • .............._.. USWEST: CITY OF RENTON. ti1 I,0,• P.O.12480 200 MILL ALE.SOUTH ^-1 [( I-000- WA I, RENTON.WA 96055 • F- UNITY GSE "L\ 4 1-B00-N4-11T1 (425)235-2520 I I I IS NnnRr wT i ce\ i I OT,leis 4 /A = i jet I ... S,B66 pIL 5.891 satt 5,882 as lL \ WETLAND(TRACT'A') )an F9 a. MOM 9 8 ! TDAT 93 ea,.._.._.....__._...._..._._.........._-._.._._......_e.»-9.rt.- 6 rtlll S En W B MNR/ UMW.SDEN K Bat L I,. @ 17069 MOLE ' • LOT 2 I,•e4N. 4 ,/ o I I a2/'"i;O:6L1 11 10 5,]6lL 9 5.)50 8 5,603 7 6.669 6 ; 5.))3 6911. 2 ea ¢9.11. SO.FT' 50.FT >.z]J 50.FT 8,91 s0.FT S NOT PART OF -..L E- LOT SIZING i MIS SUBDIVISION """ "` I-SLOPE PRORCWO1 DRD s 6 E MD(9 ).............._......._...._....._..........2.79 ACRES 21.364 so. 3 I L — — ICRAS PROPOSED R/W .............. _..........._......_..0.58 ACRES(75.195 S0.FL) MD.IN LOTS AND OPEN SPACE(TRACT.0,K) ........ 221 ACRES(96.,02 SO FL) 1 / art,+SOAa RRAn'ce-K)ARu .____.___.2e.a1 sar.(06o AwLsl o2iK a SIN rRFA 1 / MNON5 LOT 5566 .........._..._........................ ..60 FEET ..... .....�...... .._.......22.195 SO3T.(060 ACRES)0.21W K HIS AREA •• .••.•••-MFw IN PROPOSED VW .._:..._....__ z I I 23 1 22 21 20 19 / 18 OPEN SPACE (TRACT'A) C _ I \\ , ;:; MAO.IIPL41_ . a 69 ACRES 9226 TOTAL1D, AND AREA) NOTES INE 1 sNNEI9N wm s ARE PROPOS°,TO 9E • RNEND ON 11R L.=SR \ / M 1 _ A—NNNNAA . — a PRELIMINARY PLAT OF LEGAL DESCRIPTION PARCEL,3 - a 1 - WHISPERING PINES THAT PORRON OF TRACTS 255.256.257.275,•276.277 OF C.D., HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO.1•ACCORDING N t'. § PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 TO THE RAT THEREOF RECORDED IN VOLUME 11 OF PLATS.PAGE B2. RECORDS OF KING COUNTY,WASHINGTON.DESCRIBED AS FOLLOWS:' • 1 (n - BEGINNING AT wEeHORliit{Si CS✓thCR 06.TRACT 277; I I THENCE SOU 69,13.59 EAST 111,I1. T ALTINC;TNE NORTH LINE OF ® N.E. 28TH STREET SAD TRACT To{DIE TRITE,TANrIF BEENMIIR, a. THENCE coNIWUING SOUTH 89613'595 EAS6•517.18 FEET; . THENCE•SOOTH-0071D6-WEST 221.97 FEET TO A POINT ON THE SOUTH a. • ONE OF SAID TRACT 255; THENCE 50UR1 8959'JJ'MSi 517.62 FEET ALONG THE SOUTHERLY ONE TRACTS 255 AND 275: THENCE NORM OO'JJ'15'EAST 80.05 FEET; 0 N 1808 • . a . •Y xN OP Pux / THENCE NORM 8952'l3'WEST 951.15 FEET TOA THE BEONNMC OF CURVE TO W V,un E9r 5'S/• I5 ,e S.S/N MAY EMIT THE LEFT HAVING A RADIUS aF 20 FEET 1 Z W Q a' e: THENCE ALONG SAID CURVE THROUGH A CENTRAL MOLE OF 89.3{•OY. Za d CS Z . I HAVING AN ARC IFNCM OU 31.26 FEET TO A PONT oN THE EAST USE OF - Z Lb y JOVES AVENUE: 8- .N7 O SO NSO THENCE NORTH 00'J3'{5'EAST 90 FEET ALONG SAID LINE: a Z CD ° 0�.m�(7w) SCALE/ry fE£T THENCE SOUTH 00 LENGTH WEST THROUGH A CENTRAL ANGLE„OAS: Ff W Q 0= L . HAVING AN ARC LENGTH OF 31.57 FEET; I_Z VI Z Z I �� THENCE SOUTH,8952'1J'EAST 91.29 TFEI; ` N N Z W -;, THENCE NORTH 00533'45'EAST 94.40 FEET TO THE TRUE POINT OF • ]:4 �: �1' 33{J9021BI" JJl3902180 BEGINNING. Z. 3 z *° PROPOSED ROAD SECTION (ALSO KNOWN AS PARCEL 3 OF CITY OF RENTON LOT UNE AD US NENi NO. a .,/ N.T.S. 010-86•RECORDED UNDER RECORDING NO.8609229011.) '47 \ \ • 1 - SITUATE IN THE COUNTY OF KING.STATE OF WASHINGTON. 3343902845 `.'.•¢a• ...L.y � 1 \ �, (.... 8 A e \\\• xw' :LOT 1: ➢ I I 84111114h, ...Z1.4OT PART OF I I IS~I ��_ • o \ LOW-1 L0� I L. MryryTH1SSUBDIVISON � \= M1- .E. ---1- I / I -` • '-___ • 33/3902061 z , ` v1 1 1 I N, A — .•r W .. `> .Q I' \ `• '' /� L J L J L\1 -sa._J L�/ •),1`y $ ., -\� , \ - e UQ'i 11.PE "}�\�\pay x eseru•• w • ' Bun Am n 'mmn w\- :� .��' \ \vrr�� _ - 7 '(• - o� r x'. ;✓/ �,.,.•'• - {1 G ' `LE.26TH PL. ../ ` - 'Qy° :.' �'��"�\� �r� — �„�. — d 1,1 im 7. Ir E- .rv�' _ 1l W x1,H 56 rt\ /`) .`� �` " �� _�-` _``:lr -• 1 `'j I m n .n r • 1.- -..C`• /��,^•MY G \ /l ` 4 ��UAItt/6 xENIP1\ '%_1 10 WOE Lamy• MI 1:10:3.3E 1@ �/ m�;� x,L�x r--- --� r -- , /,�^ ems— � J B x` ' JJg902B10 E a _ \ ii -- I 1 I 5 S \ I 1 �� r—` � / ;5 5•I NL_/ �,,•P �,. ,I"' �, NOT PART 0 $ I I I I I •I' �I 1 I I " IS SUBDIp�S>O I LOT 11 1 1 LOT 10 1 .1 - LOT.9, j 1'... LOT 8 .1,_i� LOT 7• l- 1. LOT 6• 1 I LOT 5• "1 i ill 1• \ 51 a7e5 sn TTl 1 ,1 Am m rt .I •:1 5785,art.,: �'E1 aw5 50.FT ..1...n -°"ese /I 1 7 I 1 4m1 5a rt RL,,-w \� ..3 N 1 r.(' LOT 2 I '" — :o asaL 2120 .., ..,;, J _ I I I:;I I11 I1 I .I i_ .I I 331390 — ` TJ 7 4' L..,.m e•5 is —'.J — _J L _I 5L J �`J -�� tg > \ � ` w 'N . A \ u \ - I I ! O J31]906;)I 9 ) 1 II • e a = I II 1 3J1J9036N C . ---.1— � 3343902803 3343903639 • 2,1 - BENCHMARK -n LEGEND ®MD.6'ROUND CONCRETE MONUMENT W/NAIL IN CASE \ • OWNER • ELEV_239.77 o OWNQL N 12'J NENNER THE w PROPOSED WAIFR LINE VER TiCAL DATUM RENT0N.RASHINGTON 98056 R.�,.O0O.' . • OYODHNitLT. ma l7rams.N7WOAawla EXISTING WATER LNE OTT OF RENTON NR- ff /)n LAND 1�LWMoea WA tea .r • WA1ER OWL ENGINEER: ROBERT W.O'CONNELL JR. P.C. Na 1809J C EASDNG SAN SEWER EASEMENT NOTE SURVEYOR: KERN VANDERZANDEN P.LS NO.30427 v rAK 5)7 2.-•••v SAN SEWERI 1 DEynon.= .0.0-'� 55 PROPOSED SANITARY SEWER UNE THE HORIZONTAL AUfNMENE OF THE 15'WOE CITY Cr RENTON UTILITY 8EILVICE8 EOSELT SHOWN ON THIS PROPOSED 4 RAN HAS ON ALE REVISED AA-2 WETLAND MG TO RE LOTSR 1 AND E.TOE ROPORTINGRESS/EGRESSINl RE HORIZONTAL LOCATIONS GROUP AT THE NORTH MD EAST PROPERTY ONES MERE HELD. W��-j EXNKS W Od/-'a A-NNNNAA " • . • .. . _ . s PRELIMINARY PLAT OF • LEGAL DESCRIPTION PARCEL 3=•.' ` WHISPERING PINES MAT PDRT1ON a TRACTS 255,256.257,2]5.2]6,2n OF C.D. HILLMANS LANE WASHINGTCN CARDEN CC EDEN MASON NO.1.ACCORMNG I l' li' 9n TO ME PLAT MERECC RECORDED IN VOLUUE 11 OF PLATS.PAGE B2. 0PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 RECORDS OF IDNO CWI(TY,WASHINGTON OES,'MBEO AS MEOWS 1 (n BEGINNING AT ME NORIHREST CORNER,•OF.r1(BACT 231,• 8 ITHENCE TRACT TO EAST T,AL•N G THE NORTH UNE OP' d ' N.E. 28TH STREET THENCE CT TO TOE TROTH DINT 019-EAST 517.I8 FEEL THENCE SOUTH 00'JI'06-NEST 221.9]FEET TO A PANT ON ME SOUTH a.. • UNE OF SAID TRACT 255: THENCE SOUTH 8939'3.T NEST 51].62 FEET ALONG THE SOUTHERLY LINE OF MACTS 255 AND 2]5: THENCE LL THENCE NptM 00'3315-EAST 80.05 FEET O N THENCE NpIM 8932'I3-NEST 91.15 FEET i0 ME BEFRIMNO OF CURVE i0 9 r Z MC LEFT HANNG A ROONS OF 20 FEET; a g-z 3 NAANC AN ARGCSAM IENC CURVE MRWp EiT i CENTRAL POWT ON ME EAST OL NE O a QlK Z W[D O mO9,y,T • JO 0 FJOEET 60 THENCE SOUTH 00'3J•I5-REST 9O OUG ALONG SAID ANC: =Q¢ F- SI,".ILE/N FEET HAVNCE SOUTH 00,3045-REST ING AN ARC LENGTH OF 31.57 RFEETT; A CENTRAL ANGLE OF 9075'58 HI Z W Y 41 I THENCE SOUTH 895213•EAST 94.29 ITCH N Z W 1• THENCE NORM 00.33'IS•EAST 94.40 FEET 10 DIE TRUE PORT OF 2 Q I. I ' 3343902181 3343902180 BEGINNING 0. �/�7II �� I P . (ALSO KNOWN AS PARCEL 3 OF Orr OF RENTON LOT LINE ADJUSTYENI NO EL 3 I 010-86•RECORDED UNDER RECORDING NO.8609229011.) tl 2 ,p-® Su'In - 10 -I SITUATE O!THE COUNTY OF KING.STATE Of WA9RNCipJ. .7-__,-----: { .. I I 3902845 �../ 1�Tw 'yT`� `.}� �\ aY r Uym\ /\ ,`\ \ A. • S. NOT PMT OF % \ I ''''''\ r \\\ ` \ \ ` C1r,� :- iHi•A18DIN510N �~ `'ar \•1 oo FE 95O �/ / _, N E. 9%$ / I. • \\ \`Fw u : ' 1 ; / m11\ 2\ 6T az, �� 00. F' �g ��q a y%WMNH, 'i iii 33I3902810\ \ I -/ s\ ' tP 1 3 \ A 'a'i NeWWW., ,e y I D.>NG1- \._•-- J- .41 H I/ �T� ` s 2.88BSSINBBHUSI J \ 1 �§ slow'�Io a,§r\ - 3343902120 z• l 1 \ rc�yyy�y��, \ \NOOd�I\W�\ ..BON FMrt ` `/r// j1517.97' ® 1 .n' / I. I ! ! I 3343901538 % I \ g I II• I 23 1 22 21 20 19 / 18 aI 1 3313903611 \ . 1 \ 1 ynTµYgngw I 1 SUNSET 3343902803, I / ulw..a,/yam ImF Nmawr J903639 I \ \ 24 PR;.� i 1 Ri r LEGEND \ / W PROPOSED WATER LINE BENCHMARK • —WATER DOSING WATER IRE ®END.6•ROUND CONCRETE UOINUENT W/NAIL IN CASE. ELEV w 239.]] —SM SEWER— EMSTWG SAN SEVER VERTICAL DATUM SS PROPOSED SANITARY SEWER ONE CITY OF RENTON . p9-1 WETLAND MG 1 r 9 - . • Al—NN1NNAA • PRELIMINARY PLAT OF '~ WHISPERING PINES • Ns$il1;i 9+ . PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 I B a. N.E. 28TH STREET • s ;,r,� poi i;• ran 9 w K irivii r sn m 0e r sn�,°,n MIT 1 ZgZz.0 S .aZ ii • ° csseis °-azW0Z .- & Wt�., E .To a jo 60 Q§ o ., r SCALE uvrtzr c W—Z I,( 1 3313902181 33I3902180 PROPOSED ROAD SECTION Q. • .f: a N.T.S. g �` -_ e „ f, cu-A�� "'Is' \^�m\� AA € ------ -,�° 'Ci*'- Lee =a /.. 1 20. 33[[[3902845 \•', o n "�v \�\� • y ^� ILJI LOT i i i i \ IS I \ "��I� t`4 �� .`_ g 4 ; \ - 1•: ;�\i0jT 1.MI lmb 2 gI m)N 4 I �I s•. k;P,�=�1m " \' itOw WETLANDS SPREADER 0 O {:E I..- I >®sn Er i. 1\Sem m rt I WO sa rr\ I "11=,m ,n A„ '"f ` ,,, �-r . E. 3 y , •t.w I I I `�' .I /: 0' al•♦-;:,jam _ - 334390206/ E.4. i. 1 e.a6 ICS SA» 5 I. I I I I T .i •. v` w _ • ,.„ \____ 6 c E I�\�� vYY W eo w,.a m/ .1 � \��\� _ -a.. y1 mE jr o v POF � 1.E6TH PL. e �� 4 \>, :4\__—� f i g'o +•`'z- B* 9_ r•na _ - _ mrtr. •r .w 4 ,_,.,\, so , ,_ , • ....., :...: y .._.;w AREA _ 'r7 y;W i°, an"'0"n:' W ,aii\ �IE7�� ' '��Y -\�\ —i1•'�' :I d •• Y 6� .. �7j� .u.. • 3343902840 r-- --7 r-- --- T�1Y A56,- 1 f — --� i�'\,•a \'/- - `�� r—� 8 6 �mno• t :r \ g I I I �� " r..,\ I I �1 r—' �� / -'15r1 1.011,11 aP `' 1 •;, $ I I I I I I T I I ! WL-- 2 \ 5171111 IdiEo10 Ld0 9 \ WT.6 14371 7• 6.09 6. I 1d39 5. ml a�' ; :'•.\ I wasso.rt\ I I amsmrt I EI.. 316s sa ri. •I EI >em snrt 7•-J�y.sas2�l I rt I 1 nW1mrt L-- —��\ Te Ar I I I I I I I h, ,n nn`rW�,l b. n s`•LOT 2 "."" 21 I I I --- �`�3343902120 p I I I J I I al h �' =•a `�•��' P ,:., . 8 L ----TJ. L---- — ` L�-�S_aeC 2J J L Roocors J 'WI_ tar cvrr J _c aseY ) i�,� - 1. • 1 • 8 `. \\ `\ \`_`�,l .Jl`(, r . �—_8 �'T • I8 I I I I -3313903611 - .• • ' . • • i I - - -• l I 3343903639 • - 3343902803 ... .I I... .,. t LEGEND OWNER i OWNER: NANCY BENNETT 1 W PROP05E0 WATER LINE 2612 ALES AVE.N.E. THE . MOON.WAS2,WGTON 98056 �„0'CO cm.°®e WAS 01589G WATER ENE Qc TANNm L mu ENGINEER:RCWERT W.O•C[NNNELL 3R- P.E.18093 b ��t, LAND Im u1.tsEn 0001 AIM St SCE•r —SAN SEWER— COSTNG SAN SEWER SURVEYOR I�YN YANDERZANDCN P.L.S. NO.30137 �_, OM SS PROPOSED SANITARY SEWER TINE C I;' 1• D TEYBAT'1�2'E � 951- AA-2 WCIIAND FLAG ✓'IttYioas OROUP DmD1s m a qA _ A—NNNNAA 41 w:�` ` CI' V- OF RENTON • Planning/Building/Public Works Department J e Tanner,Mayor Gregg Zimmerman P.E.,Administrator January 7, 1998 Mr. Robert O'Connell, Jr. 4620-200th Street SW, Suite F Lynnwood, WA 98036 SUBJECT: Plat of Whispering Pines Project No. LUA-97-135,PP,ECF,V Dear Mr. O'Connell: This letter is to inform you that the comment and appeal periods have ended for.the Environmental Review Committee's (ERC) Determination of Non-Significance - Mitigated for the above-referenced project. No appeals were filed on the ERC determination. The applicant must comply with all ERC Mitigation Measures and Conditions of approval. As•you are aware, a Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council Chambers on the second floor of City Hall, Renton, Washington on January 13, 1998 at 9:00 AM to consider the Preliminary Plat and Variance. The applicant or representative(s) of the applicant is required to be present at the public hearing. If you have any questions, please feel free to contact me at (425)277-6186. • For the Environmental Review Committee, je/tir h"e"t"Avrl nifer-T-et6 Henning Project Manager cc: Ms. Nancy Bennett/Owner Mr. Richard Fisher/Party of Record Mr. Henry House/Party of Record FINAL DOC • 200 Mill Avenue South - Renton, Washington 98055 This paper contains 50%recycled material,20%post consumer / DEC-31-97 'WED 7: 50 AM WSDOT/D.AYTON 5TH FLR FAX ND. 20i4404805 P. 1 � Washington State - Northwest Roglon �I/ Department of Transportation 15700 Dayton Avenue North Sid Morrison PO Box 330310 Seattle,WA 98133-9710 Secretary of Transportalion. (206)440-4000 • December 30, 1997 JEV m ry r r PLANNING • DEC 511 1997 . Jennifer Toth Henning City of Renton Re: Acoustical Comments Dear Ms. Henning In my review of a list of proposed developments from the Department of Ecology I came across a residential development in Concrete area that will be adjacent to State Route 405 Your file number for this project is LOA-97-135. We have learned from experience that people who will live in these residences that are close to our right-of-way then call us up after a few months to ask what we can do about the noise. We are unable to even consider these locations for noise walls until we have a project to add lanes to the adjacent highway. • We would appreciate it if you would make it clear to the developer that any mitigation • measures necessary to protect the future residents of the development from traffic noise impacts will be entirely the responsibility of the developer. If you have any questions please feel free to contact me at: MS 138 15700 Dayton Ave. N. Seattle WA, 98133 phone (206)440-4643 fax (206) 440-4805. gillisn@wsdot.wa.gov • Sincerely, Nathan A. Gillis Acoustical Technician W.S.D.O.T. ro i Washington State Northwest Region Department of Transportation 15700 Dayton Avenue North P.O. Box 330310 Sid Morrison Seattle,WA 98133-9710 Secretary of Transportation • (206)440-4000 • • • DEC 2 1997 DEVELOPMEN a PLANNING DATE: December 12, 1997 CITY OF RENTON TO: Mark Pywell City of Renton, Project Manager • 200 Mill Avenue South Renton WA 98055 Subject: SR 405 MP 6.72 CS 1744 Notice of Application-Whispering Pines10 • lot plat File No. LUA-97-135,PP,V,ECF .A FROM: Robert A. Jo ephson, PE, Manager of Planning &Local Coordination Washington State Department of Transportation Northwest Region 15700 Dayton Avenue North, MS 122 P. O. Box 330310 ' • Seattle, WA 981-33-9710 • Thank you for giving us the opportunity to review this project, which is located 2612 • Jones Avenue NE.. Our response is below: We have reviewed this subject document and have no comments. The Project will have no significant impact on the state highway system. If you have any questions,please contact Don Hurter at 440-4664 or Vickie Erickson at 440-4915 of my Developer Services section , VEE:vee File Name • • • • • • • „- • • • mismisiosigimagelimemotiolimmonOURRENTPLANNIN" D1VISION ••••••••••••••••••••••••.•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• • .".". """". "---"•••"•• • APF$DAVIT OF SERVICE BY MAILING On the day of • Pecevy‘ber , 1997, I deposited in the mails of the United States, a sealed envelope containing €.Yc. cW.teit pentv‘killlin% •documents. This information was sent to: • • Name Representing Department of Ecology Don Hurter WSDOT KC Wastewater Treatment Division Larry Fisher Washington Department of Fisheries David F. Dietzman Department of Natural Resources Shirley Lukhang Seattle Public Utilities • Duwamish Indian Tribe Rod Malcom ' Muckleshoot Indian Tribe Joe Jainga Puget Sound Energy (Signature of Sender) %Avila.STATE OF OF WASHINGTON ) SS COUNTY OF KING, • ) I certify that I know or have satisfactory evidence that signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument. Dated: • Notary Public in and for the'State of Washington Notary(Print) My appointment expires: • • Project Name: rivie, fist r 4.)Wsperiv rt neS Project Number: LUR .11. 135 , PP.Ecr NOTARY.DOC ;; s;== CIT' . 'OF RENTON Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator December 17, 1997 Mr. Robert O'Connell, Jr. 4620-200th Street SW, Suite F Lynnwood, WA 98036 SUBJECT: Plat of Whispering Pines Project No. LUA-97-135,PP,ECF,V . . Dear Mr. O'Connell: This letter is written on behalf of the Environmental Review Committee (ERC) and is to advise you that they have completed their review of the subject project. The ERC, on December 16, 1997, issued a threshold Determination of Non-Significance-Mitigated with Mitigation Measures. See the enclosed Mitigation Measures document. • Comments regarding the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee is based on erroneous procedure, errors of law or fact, error in judgment, or the discovery of new evidence which could not be reasonably available at the time of the determination may submit written comments. After review of the comments, if Environmental Review Committee finds there is not sufficient evidence to amend its original determination, then there will be no further extension of the appeal period. .Any person wishing to take further action would need to file a formal appeal within the original 15-day timeframe. Written'comments must be filed with: Jana Huerter, Land Use Review Supervisor, City of Renton Development Services,Division, 200 Mill Avenue South, Renton, WA 98055. If an appeal of the environmental determination is also fled with the Hearing Examiner during the same 15-day comment period, then the Environmental Review Committee will first take action on the request for reconsideration and the appellant will be notified that the appeal is on hold pending the Committee's decision on the reconsideration request. The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal. Appeals of the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998.' Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 200 Mill Avenue South, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)235-2501. A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council.Chambers on the second floor of City Hall, Renton, Washington, on January 13, 1998 at 9:00 AM to consider the Preliminary Plat and Variance. The applicant or representative(s) of the applicant is required to be present at the public hearing. A copy of the staff report will be mailed to you one week before the hearing If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. - The preceding information will assist you in planning for implementation of your project and enable you to exercise your appeal rights'more fully, if you choose to do so. If you have any questions or desire clarification of the above, please call me at(425) 277-5586. For the Environmental Review Committee, ICI fer To nning Project Manager cc: Ms. Nancy Bennett/Owner 200 Mill Avenue South - Renton, Washington 98055 • • CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) MITIGATION MEASURES APPLICATION NO(S): LUA-97-135,PP,ECF,V - APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant has requested preliminary plat approval and environmental review for the development of an 11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope in a buffer area adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8,914 square feet. An two-story shop building would be demolished for the proposal. • LOCATION OF PROPOSAL: 2612 Jones Avenue NE MITIGATION MEASURES: 1. The applicant shall follow the recommendations,::of-the,;,geotechnical engineering study as prepared for the subject parcel by Earth Consultants, Inc: °'. • 2. • The applicant shall paythe applicable Transportation Mitigation`Fee, at a rate of$75.00 per each new average daily trip attributable to the"project; The fee is payable prior to the recording of the • plat. The applicant would need to:revisetheNconstruction mitigation plan to restrict construction- related traffic to the hours between:8:30,a`;m:to 200 p.m during the school year, and to the off- peak - peak hours between 8:30 a:m.'`and"3:30;p.m:;'during the months school is not in session, unless approved in advance by the Development Services Division. - 3. The applicant shall pay;a Fark's Department mitigation.;fee of $530.76 per each new single family dwelling unit. The required mitigation fee shall pe paid prior to the recording of the plat. 4. The applicant shall pay the "ap`propriate Fire:Mitigation;Fee equal to $488 per single family residential lot. The Fire Mitigation Fee is;payable prior,to`the recording of the plat. 5. a) The grading of the new intersection at'Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage control plans for the site shall be designed to discharge: one-half of the 2- year pre-developed discharge through the two-year design storm; one-half of the 10-year pre- developed discharge through the 10-year design storm; and,with overflow occurring when the 100-year design storm with thirty percent(30%)factor of safety detention are exceeded. d) The final drainage control plans for the site shall provide a split-discharge design to discharge the two-year (2-year) , and ten-year (10-year) design storms directly into the wetland. Furthermore,'.the-plans shall provide for the diversion of flows from storms greater than the ten • - year design storm into the Kerinydale Stormwater Interceptor. • CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) • • ADVISORY NOTES APPLICATION NO(S): LUA-97-135,PP,ECF,V - APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines • DESCRIPTION OF PROPOSAL: The applicant has requested preliminary plat approval and environmental review for the development of an 11-lot plat on 2.8 acres. A variance is also requested in Order to construct a stormwater flow spreader at the toe of the steep slope in a buffer area adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8,914 square feet. An two-story shop building would be demolished for the proposal; LOCATION OF PROPOSAL: . ' '. 2612 Jones Avenue NE .Advisory Notes to Applicant The following notes are supplemental information provided in conjunction with the environmental determination:=Because these notes are provided as`information only, they are not subject to the appeal process,for environmental determinations::; Plan Review-Transportation'' ; • 1. City Code states that the`width of proposed residential,street right-of-ways is required to be 50 feet. However, Section 4-34-12D.`of the Street Standards states that reduced right-of-way dedication may be approved for residential access.streetsnfor new street within a short plat or subdivision to 42 feet when the extra area is used for the creation of an additional lot which could not be platted without the reduction, or when the platting with the requireda right-of way width results in the creation of lots with less than 100 feet in depth. The Department may re,eight-of-Way uire additional:easements be provided for the franchise utilities outside of the dedicated right of way when such a'right-of-way reduction is approved. • 2. The cul-de-sac is required to have a 55-foot`radius'and in improved paved cul-de-sac radius of 45- feet minimum. 3. Sidewalks are required adjacent to the curb. The sidewalks shall be a minimum width of-six(6) feet. 4. Street lighting is required to City standards. . 5. A traffic mitigation fee of$75.00 per each new single family residence will be required. The fee is discussed in the mitigation measures and is estimated to be$7,162.50 (9.55 trips x 10 new homes= 95.5 new daily trips x$75.00 per trip=$7,162.50). The fee is due prior to recording of the plat. 6. A vertical roadway profile is required during the review of the civil (construction)drawings. Also, the vertical profile at the approach to the intersection with Jones Avenue NE is required. ' Plan Review- Water 7. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant must be able to deliver 1,000 gallons per minute of fire flow. Hydrants must be located in conformance to Fire ', Department standards.. 8. The Water System Development Connection Charge is$850 per lot. ' 9. Construction drawings are required to meet_City of Renton Drafting Standards. • 10..Water main extension size and valve locations need to be shown on the conceptual utility plan. The Plat at Whispering Pines LUA-97-135,PP,ECF - Advisory Notes (Continued) 11. Pressure relief valves need to be noted and shown on the drawings if they will be required. • 12. The construction plans should show the finished floor grades. 13. A vertical profile will be required during the review of the construction (civil) drawings. Plan Review-Surface Water 14. Drainage system and temporary erosion control plans for the site shall be designed in accordance with the 1990 King County Surface Water Design Manual, as adopted by the City of Renton. Surface Water(SDC)fees of$385 per each new single family lot will be required. 15. As part of the Kennydale Interceptor Project, a separate storm main will be constructed through the northeast corner of the site. The runoff form this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed, if the plat drainage system is constructed prior to construction of the new public storm sewer main. 16. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and an adequate quality control system. 17. The proposed project is located in the Aquifer Protection Area Zone 2. 18. Through curb inlet will be required at the bottom of the cul-de-sac and at vertical sags(two catch basins required so as to not cause flooding) 19. The project is constructing more than 5,000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration,or wetvault. The drainage report indicates that the project will provide water quality treatment by over-sizing the detention vault, but no calculations were provided. The1detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design criteria fora;detention vault. The vault will need a minimum of one-foot of dead storage for sediment accumulation'along with the water quality treatment •storage equal to one-third (1/3)the two-year,24-hour storm'volume, plus the required detention volume. The drainage report will need to be revised to show that the;sizing of the project detention/wetvault meets City design standards as part of the'project construction plan review: Plan Review-Wastewater ` • 3p. `m 20. The proposal will need to be coordinated with the City's Kennydale Sewer Interceptor,that has been designed to go across the plat'(northeastern corner of the subject Site). ,Construction of the Kennydale Sewer is expected to occur in the,next 21. The project would be subject to a Water System Development"Connection Charge of$585 per lot. Fire Prevention 22. The minimum fire flow for the single family structures is 1,000 gpm with one fire hydrant within 300 feet of the structure. If the square footage of any of the single family structures exceeds 3,600 square feet (total floor area including garage and basements),the fire flow would increase to a minimum of 1,500 gallons per minute (gpm)with two fire hydrants required within 300 feet of the structure. 23.. The fire mitigation fees are applicable at the rate of$488 per single family building: Eleven (11) single family units x$488.00= $5,368.00. The fire mitigation fees are discussed under the mitigation measures. The fee is due prior to recording of the plat. ' Parks and Recreation 24. The Parks Mitigation Fee applies to this proposal and is discussed in Mitigation Measures. The fee will be charged at a rate of$530.76 per each new single family residential home. The fee is estimated to be$5,838.36 (11 homes x$530.76=.$5,838.36) and is due prior to recording of the plat. Property Services 25. Several comments regarding the preliminary plat drawings were submitted and will be forwarded to • .the applicant separately. The Plat at Whispering Pines LUA-97-135,PP,ECF Advisory Notes (Continued) General 26. All required utility, drainage and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a registered Civil Engineer. The construction permit application must include a itemized cost estimate for these improvements. The fee for review and inspection of these improvements is 5% of the first$100,000 of the estimated construction costs; 4% of anything over$100,00 but less than $200,000, and 3% of anything over$200,000. Half of this fee must be paid upon application for building and construction permits, and the remainder when the permits are issued. There may be additional fees for water service related expenses. • • a CITE. ;)F RENTON a :,ti Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator December 17, 1997 Washington State Department of Ecology Environmental Review Section PO Box 47703 . Olympia,WA 98504-7703 Subject: Environmental Determinations = Transmitted herewith is a copy of the Environmental Determination and Environmental Checklist for the following project reviewed by the Environmental Review Committee (ERC) on December 16, 1997: DETERMINATION OF NON-SIGNIFICANCE-MITIGATED THE PLAT AT WHISPERING PINES/LUA-97-135,PP,ECF,V The applicant has requested preliminary plat approval and environmental review for the development of an 11- lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope in a buffer area adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8,914 square.feet. A two-story shop building would be demolished for the proposal. Location: 2612 Jones Avenue NE. Comments regarding the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee is based on erroneous procedure, errors of law or fact, error in judgment, or the discovery of new evidence which could not be reasonably available at the time of the determination may submit written comments.After review of the comments, if . Environmental Review Committee finds there is not sufficient evidence to amend its original determination,then there will be no further extension of the appeal period. Any person-wishing to take further action would need to file a formal appeal within the original 15-day timeframe. Written commentsmust be filed with: Jana Huerter, Land Use Review . Supervisor, City of Renton Development Services Division,200 Mill Avenue South, Renton,WA 98055. If an appeal of the environmental determination is also filed with the.Hearing Examiner during the same 15-day comment period,then • the Environmental Review Committee will first take action on the request for reconsideration and the appellant will be notified that the appeal is on hold pending the Committee's decision on the reconsideration request. The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal'. Appeals of the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Appeals must be filed in writing together with the required .$75.00 application fee with: Hearing Examiner, City of Renton,200 Mill Avenue South, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)235-2501. • If you have questions, please call me at(425)277.5586. Fo the Enviro ntal Review Committee, • v �4 Jife t Hennin �� (--. ) 9 Project Manager cc: King County Water Pollution Control Division, Metro - Larry Fisher, Department of Fisheries - . David F. Dietzman, Department of Natural Resources . . • Don Hurter, Department of Transportation , Shirley Lukhang, Seattle Public Utilities 0 Duwamish Tribal Office . ': .• - . . Rod Malcom, Fisheries, Muckleshoot Indian Tribe (Ordinance) - .• • : • Joe Jainga, Puget Sound Energy AG.NCvr TR nniA 200 Mill Avenue South-Renton, Washington 98055 - J This paper contains 50%recycled material,20%post consumer • CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) APPLICATION NO(S): LUA-97-135,PP,ECF5 V APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 11'-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal LOCATION OF PROPOSAL: 2612 Jones Avenue NE LEAD AGENCY: City of Renton Department of Planning/Building/Public Works Development Planning Section The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21 C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-6-6 Renton Municipal Code. These conditions are necessary to mitigate environmental impacts identified during the environmental review process. Comments regarding the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee is based on erroneous procedure, errors of law or fact, error in judgment, or the discovery of new evidence which could not be reasonably available at the time of the determination may submit written comments. After review of the comments, if Environmental Review Committee finds there is not sufficient evidence to amend its original determination, then there will be no further extension of the appeal period. Any person wishing to take further action would need to file a formal appeal within the original 15-day timeframe. Written comments must be filed with: Jana Huerter, Land Use Review Supervisor, City of Renton Development Services Division, 200 Mill Avenue South, Renton, WA 98055. If an appeal of the environmental determination is also filed with the Hearing Examiner during the same 15-day comment period, then the Environmental Review Committee will first take action on the request for reconsideration and the appellant will be notified that the appeal is on hold pending the Committee's decision on the reconsideration request. The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal. Appeals of the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 200 Mill Avenue South, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)235-2501. PUBLICATION DATE: December 22, 1997 DATE OF DECISION: December 16, 1997 SIGNATURES: /41/4-fr 7 G e Zim 4fm inistrator DA E Depart etIt of Panning/Building/Public Works /2--- le — f — . Sam Chastain,-Administrator DATE Community Se ice Departme ,Re /—dx_ Lee hee er, Fire Chief DATE Renton Fire Department DNSMSIG.DOC CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) MITIGATION MEASURES APPLICATION NO(S): LUA-97-135,PP,ECF,V APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal LOCATION OF PROPOSAL: 2612 Jones Avenue NE MITIGATION MEASURES: 1. The applicant shall follow the recommendations of the geotechnical engineering study as prepared for the subject parcel by Earth Consultants, Inc. 2. The applicant shall pay the applicable Transportation Mitigation Fee, at a rate of$75.00 per each new average daily trip attributable to the project. The fee is payable prior to the recording of the plat. The applicant would need to revise the construction mitigation plan to restrict construction- related traffic to the hours between 8:30 a.m. to 2:00 p.m. during the school year, and to the off- peak hours between 8:30 a.m. and 3:30 p.m. during the months school is not in session, unless approved in advance by the Development Services Division. 3. The applicant shall pay a Park's Department mitigation fee of $530.76 per each new single family dwelling unit. The required mitigation fee shall be paid prior to the recording of the plat. 4. The applicant shall pay the appropriate Fire Mitigation Fee equal to $488 per single family residential lot. The Fire Mitigation Fee is payable prior to the recording of the plat. 5. a) The grading of the new intersection at Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage control plans for the site shall be designed to discharge: one-half of the 2- year pre-developed discharge through the two-year design storm; one-half of the 10-year pre- developed discharge through the 10-year design storm; and,with overflow occurring when the 100-year design storm with thirty percent(30%)factor of safety detention are exceeded. d) The final drainage control plans for the site shall provide a split-discharge design to discharge the two-year (2-year) and ten-year (10-year) design storms directly into the wetland. Furthermore, the plans shall provide for the diversion of flows from storms greater than the ten- year design storm into the Kennydale Stormwater Interceptor. CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE (MITIGATED) ADVISORY NOTES APPLICATION NO(S): LUA-97-135,PP,ECF,V APPLICANT: O.L.D.S. Group, Mr. Robert O'Connell PROJECT NAME: The Plat at Whispering Pines DESCRIPTION OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 11;lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal LOCATION OF PROPOSAL: 2612 Jones Avenue NE Advisory Notes to Applicant: The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations. Plan Review-Transportation 1. City Code states that the width of proposed residential street right-of-ways is required to be 50 feet. However, Section 4-34-12D. of the Street Standards states that reduced right-of-way dedication may be approved for residential access streets for new street within a short plat or subdivision to 42 feet when the extra area is used for the creation of an additional lot which could not be platted without the reduction, or when the platting with the required right-of-way width results in the creation of lots with less than 100 feet in depth. The Department may require additional easements be provided for the franchise utilities outside of the dedicated right of way when such a right-of-way reduction is approved. 2. The cul-de-sac is required to have a 55-foot radius and an improved paved cul-de-sac radius of 45- feet minimum. 3. Sidewalks are required adjacent to the curb. The sidewalks shall be a minimum width of six(6) feet. 4. Street lighting is required to City standards. 5. A traffic mitigation fee of$75.00 per each new single family residence will be required. The fee is discussed in the mitigation measures and is estimated to be $7,162.50 (9.55 trips x 10 new homes= 95.5 new daily trips x$75.00 per trip= $7,162.50). The fee is due prior to recording of the plat. 6. A vertical roadway profile is required during the review of the civil (construction) drawings. Also,the vertical profile at the approach to the intersection with Jones Avenue NE is required. Plan Review- Water 7. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant must be able to deliver 1,000 gallons per minute of fire flow. Hydrants must be located in conformance to Fire Department standards. 8. The Water System Development Connection Charge is$850 per lot. 9. Construction drawings are required to meet City of Renton Drafting Standards. 10. Water main extension size and valve locations need to be shown on the conceptual utility plan. ' The Plat at Whispering Pines` LUA-97-135,PP,ECF Advisory Notes(Continued) 11. Pressure relief valves need to be noted and shown on the drawings if they will be required. 12. The construction plans should show the finished floor grades. 13. A vertical profile will be required during the review of the construction (civil)drawings. Plan Review-Surface Water 14. Drainage system and temporary erosion control plans for the site shall be designed in accordance with the 1990 King County Surface Water Design Manual, as adopted by the City of Renton. Surface Water(SDC)fees of$385 per each new single family lot will be required. 15. As part of the Kennydale Interceptor Project, a separate storm main will be constructed through the northeast corner of the site. The runoff form this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed, if the plat drainage system is constructed prior to construction of the new public storm sewer main. 16. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and an adequate quality control system. 17. The proposed project is located in the Aquifer Protection Area Zone 2. 18. Through curb inlet will be required at the bottom of the cul-de-sac and at vertical sags (two catch basins required so as to not cause flooding.) 19. The project is constructing more than 5,000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by over-sizing the detention vault, but no calculations were provided. The detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design criteria for a detention vault. The vault will need a minimum of one-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to one-third (1/3)the two-year, 24-hour storm volume, plus the required detention volume. The drainage report will need to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. Plan Review-Wastewater 20. The proposal will need to be coordinated with the City's Kennydale Sewer Interceptor,that has been designed to go across the plat.(northeastern corner of the subject site). Construction of the Kennydale Sewer is expected to occur in the next year. 21. The project would be subject to a Water System Development Connection Charge of$585 per lot. Fire Prevention 22. The minimum fire flow for the single family structures is 1,000 gpm with one fire hydrant within 300 feet of the structure. If the square footage of any of the single family structures exceeds 3,600 square feet(total floor area including garage and basements),the fire flow would increase to a minimum of 1,500 gallons per minute (gpm)with two fire hydrants required within 300 feet of the structure. 23.. The fire mitigation fees are applicable at the rate of$488 per single family building: Eleven (11) single family units x$488.00= $5,368.00. The fire mitigation fees are discussed under the mitigation measures. The fee is due prior to recording of the plat. Parks and Recreation 24. The Parks Mitigation.Fee applies to this proposal and is discussed in Mitigation Measures. The fee will be charged at a rate of$530.76 per each new single family residential home. The fee is estimated to be$5,838.36 (1.1 homes x$530.76= $5,838.36) and is due prior to recording of the plat. Property Services 25. Several comments regarding the preliminary plat drawings were submitted and will be forwarded to the applicant separately. , The Plat at Whispering Pine? LUA-97-135,PP,ECF Advisory Notes (Continued) General 26. All required utility, drainage and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a registered Civil Engineer. The construction permit application must include a itemized cost estimate for these improvements. The fee for review and inspection of these improvements is 5% of the first$100,000 of the estimated construction costs; 4% of anything over$100,00 but less than $200,000, and 3% of anything over$200,000. Half of this fee must be paid upon application for building and construction permits, and the remainder when the permits are issued. There may be additional fees for water service related expenses. NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON, WASHINGTON The Environmental Review Committee (ERC) has issued a Determination of Non-Significance - Mitigated for the following project under the authority of the Renton Municipal Code. PLAT AT WHISPERING PINES LUA-97-135,PP,ECF,V Environmental review for approval to develop an 11 lot plat. Location: 2612 Jones Ave. NE. The 15 day comment and appeal period for this project will run concurrently. The comment/appeal periods for this project will end at 5:00 PM on January 5, 1998. Written comments shall be forwarded to the Development Services Division Land Use Review Supervisor. Information on the project file and the mitigation measures imposed by the City of Renton's Environmental Review Committee are available at the Development Services Division, Third Floor, Municipal Building, Renton, Washington 98055. Phone: 235-2550. Appeal procedures are available in the City Clerk's office, First Floor, Municipal Building. A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council Chambers on the second floor of City Hall, Renton, Washington, on January 13, 1998 at 9:00 AM to consider the Preliminary Plat and Variance. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. Interested parties are invited to attend the public hearing. Publication Date: December 22, 1997 Account No. 51067 dnsmpub.dot • . . i • • ....,,,, . ,\]..(;) ,T1, 00 ii • . . .. . . . i , . . . . . ... . , .., , , Ir-J ENVIRONMENTAL DETERMINATION , POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: THE PLAT AT WHISPERING PINES PROJECT NUMBER: LUA-9T-135,PP,ECF,V The applicant has requested preliminary plat approval and environmental review for the development of an 11- lot plat on 2.6 acres.A variance is also requested in older to construct a stormwater flow spreader et the toe of the steep slope fn a butler area adjacent to a Category II wetland.The new lots would range in size from 5,803 squaefJones t to 6,914 NE. feel. A two-story shop building would be demolished for the proposal. Location: 12 A enue THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ENVIRO MENTT.POSED AN ENVIRONMENTAL IMPACT STATEMENT WILL NOT BE REQUIRED. THE . Comments regarding the environmental determination must be filed In writing on or before 5:00 PM January 05,1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee Is based on erroneous procedure,errors of law or fact,error in judgment,or the discovery �I ' of new evidence which could not be reasonably available at the time of the determination may submit written ' comments.After review of the comments,if Environmental Review Committee finds there Is not sufficient evidence to amend its original determination,then there will be no further extension of the appeal period. Any person wishing to take further action would need to file a formal appeal within the original 15-day timeframe.Written comments must be filed with:Jana Huerter,Land Use Review Supervisor,City of Renton Development Services Division, 200 Mill Avenue South, Renton, WA 98055. If an appeal of the environmental determination Is also filed with the Hearing Examiner during the same 15-day comment period, I then the Environmental Review Committee will first take action on the request for reconsideration and the • itappellant will be notified that the appeal Is on hold pending the Committee's decision on the reconsideration request. The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal. Appeals of the environmental determination must be filed in writing on or before 5:00 PM • January 05,1998. Appeals must be tiled In writing together with the required 575.00 application fee with: Hearing Examiner,City of Renton,200 Mill Avenue South,Renton,WA 98055: Appeals to the Examiner are govemed by City of Renton Municipal Code Section 4-8-11B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office,(425)235-2501'. A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council Chambers on the second floor of City Hall,Renton,Washington,on JANUARY 13.1998 at 9:00 AM to consider the Preliminary Plat and Variance.:If the Environmental Determination Is appealed,the appeal 'fl will be heard as part of this public hearing: .- --,..,..r11J1 -.gip'eY.. . -- vo c r.. • r °dnS.Sn,r jj rL. l• \r�,p�,u R• „•. :/ 4i A • I ib I.11 w 1 3 gl�, e:w o a f'° z III ; ..l IR8 �".Liar 'f••._,�. e. 1 0 - r L':. II • ° - rye* .IC ?. .',.. . tT 4.. s: s ..,;•O ��trtrtrry•It _14..0,.1!..O... 9f t•• ;Ttt Vr ar-o � «a 1161..-,. - y� ll eRg A ~' \ ll ali -i j FOP il ` �O ' .VELOPMENT SERVICES DIVISION AT 235,2550. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION IPlease Include the project NUMBER when calling for proper file.identiticatlon. -1 i . CERTiFICATION • Ir Akfr/f�jnin//7/ , hereby certify that 3 copies of the above document were posted by me in 3 conspicuous places on or nearby the described properly on • . 9,:?6,1arrz /F,if7 . Signed: • f,,:lr� 0. . STATE OF WASHINGTON ) • • ) SS cO!N7Y OF KING ) • I _certify that I know or have satisfactory evidence that /1(?,a- 7 )3/,- • signed Tis instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument. , • • Dated: .• /61, 1 1? ---.--) ? a07 -- Notary P • in and for the Stal of Washington Notary (Print) MARILYN KAMCHEFF g r: u,ON EXPIRES 6/29/99 • • My appoinlmer�p�>�,,i �, ENVIRONMENTAL DETERMINATION POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: THE PLAT AT WHISPERING PINES PROJECT NUMBER: LUA-97-135,PP,ECF,V The applicant has requested preliminary plat approval and environmental review for the development of an 11- lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope in a-buffer area adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8,914 square feet. A two-story shop building would be demolished for the proposal. Location: 2612 Jones Avenue NE. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. AN ENVIRONMENTAL IMPACT STATEMENT WILL NOT BE REQUIRED. Comments regarding the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee is based on erroneous procedure, errors of law or fact,error in judgment,or the discovery of new evidence which could.not be reasonably available at the time of the determination may submit written comments. After review of the comments, if Environmental Review Committee finds there is not sufficient evidence to amend its original determination, then there will be no further extension of the appeal period. Any person wishing to take further action would need to file a formal.appeal within the original 15-day timeframe. Written comments must be filed with: Jana Huerter, Land Use Review Supervisor, City of Renton Development Services Division, 200 Mill Avenue South, Renton, WA 98055. If an appeal of the environmental determination is also filed with the Hearing Examiner during the same 15-day comment period, then the Environmental Review Committee will first take action on the request for reconsideration and the appellant will be notified that the appeal is on hold pending the Committee's decision on the reconsideration request: The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal. Appeals of the environmental determination must be filed in writing on or before 5:00 PM January 05, 1998. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner,City of Renton,200 Mill Avenue South, Renton,WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office,(425)235-2501. A Public Hearing will be held by the Renton Hearing. Examiner at his regular meeting in the Council Chambers on the second floor of City Hall, Renton, Washington, on JANUARY.13, 1998 at 9:00 AM to consider the Preliminary Plat and Variance. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. rK-mx _ -__. G E EN V, ' F11LY ©c i• i: �` • 0�..'�Sipe 15� ,'" • • r® gr -,fze4.,` ,ram:• % -�1; Q • i- i i .... iM• 11- ..�' d „kg ------------ AT.-......_.. .... .o 13-.:z1T n Li mr • 7 1_•— -�A-, n'17 a 1 '©. • .4£S , 1 Rt3-_ 'x 'b r W r:-.zees • i' zde z, a_.._ 1 y • 13 3-: 1'• .H7: • w e�._ -'L': vq �rHrlis• 4 .Fidt a i m ' ':elpp"® 9.: �.. .,1111 cht.m,!si ! • ..,'m,:�.v� A. • 14' ia3 ® C+w'xiz�! qi .• 9$ KB r ----.dn FOF — — ,l Q^"d• � ._° .VELOPMENT SERVICES DIVISION AT 235-2550. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION Plea 010lude`:the' . o ect NUMBER.when:call*( 0. ro er:.:001.0,E ai,..:aio"`::;`ent a n. • STAFF City of Renton REPORT Department of Planning/Building/Public Works ENVIRONMENTAL REVIEW COMMITTEE A. BACKGROUND ERC MEETING DATE December 16, 1997 Project Name Plat of Whispering Pines Applicant Robert W. O'Connell Jr. 4620 200th Street SW, Suite F . Lynnwood, WA 98036 File Number LUA-097-135,PP,V,ECF Project Manager Jennifer Toth Henning Project Description The applicant has requested preliminary plat approval and environmental review for the development of an 11-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,603 square feet to 8,914 square feet. An two-story shop building would be demolished for the proposal. Project Location 2612 Jones Avenue NE Exist. Bldg. Area gsf 2,460 s.f. shop building Proposed New Bldg. Area gsf Site Area 2.8 acres Total Building Area gsf RECOMMENDATION Staff Recommend that the Environmental Review Committee issue a Determination of Non-Significance-Mitigated. • aI Y lS I. _ __�• 1& 3! 50 e 51 I if'•,2ewr .a—,. i 2'•11,Y;'-- .''' .T' ` 1 m• 0, 24g`fie, i\ 0y. 11.' , .., . Iri ;, .'®I,' ©,I Inl x a a. •'e.-la'A ''�t' �9 .� 27:. % r'�i� �� N L.CI, jovial 6 �..7 7,„, .40 'IRJppir , I._L.—w F • 29F T' o �RQ . _-� .12.E t » �'�. - _. i+ ,4 , I pV _� n. .. .t y W 1, 254Q. -241� ,. o.L,; . N - - - --'- y.... Ws'.. r „,. — lg = o sir: , x[.,i.r x-Sr a a. ME';:' ' 2TH Project Location Map ERCRPT.1)OC , City of Rentop PB/PWDepartment , ]: �'onmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135-PP, V,ECF REPCRT AND DECISION OFDECEA'BER 16,1997 - Page2 of 7 B. RECOMMENDATION Based on analysis of probable impacts from the proposal, staff recommend that the Responsible Officials make the following Environmental Determination: DETERMINATION OF X DETERMINATION OF NON-SIGNIFICANCE NON-SIGNIFICANCE-MITIGATED. Issue DNS with 14 day Appeal Period. X Issue DNS-M with 15 day Comment Period with Concurrent 14 da A eal Period. Issue DNS with 15 day Comment Period Issue DNS-M with 15 day Comment Period with Concurrent 14 day Appeal Period. followed by a 14 day Appeal Period. C. MITIGATION MEASURES 1. The applicant shall follow the recommendations of the geotechnical engineering study as prepared for the subject parcel by Earth Consultants, Inc. 2. The applicant shall pay the applicable Transportation Mitigation Fee, at a rate of$75.00 per each new average daily trip attributable to the project. The fee is payable prior to the recording of the plat. The applicant would need to revise the construction mitigation plan to restrict construction-related traffic to the hours between 8:30 a.m. to 2:00 p.m. during the school year, and to the off-peak hours between 8:30 a.m. and 3:30 p.m. during the months school is not in session, unless approved in advance by the Development Services Division. 3. The applicant shall pay a Park's Department mitigation fee of $530.76 per each new single family dwelling unit. The required mitigation fee shall be paid prior to the recording of the plat. 4. The applicant shall pay the appropriate Fire Mitigation Fee equal to $488 per single family residential lot. The Fire Mitigation Fee is payable prior to the recording of the plat. 5. a) The grading of the new intersection at Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage control plans for the site shall be designed to discharge: one-half of the 2-year pre-developed discharge through the two-year design storm; one-half of the 10-year pre-developed discharge through the 10-year design storm; and,with overflow occurring when the 100-year design storm with thirty percent (30%) factor of safety detention are exceeded. d) the final drainage control plans for the site shall provide a split-discharge design to discharge the two-year (2-year) and ten-year (10-year) design storms directly into the wetland. Furthermore, the plans shall provide for the diversion of flows from storms greater than the ten-year design storm into the Kennydale Stormwater Interceptor. ERCRPT.DOC City of Rentqn PB/PWDepartment ] 9nmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135-PP, V,ECF REPORT AND DECISIONOFDECEMBER 16,1997 Page3 of 7 Advisory Notes to Applicant: The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations. Plan Review- Transportation 1. City Code states that the width of proposed residential street right-of-ways is required to be 50 feet. However, Section 4-34-12D. of the Street Standards states that reduced right-of-way dedication may be approved for residential access streets for new street within a short plat or subdivision to 42 feet when the extra area is used for the creation of an additional lot which could not be platted without the reduction, or when the platting with the required right-of-way width results in the creation of lots with less than 100 feet in depth. The Department may require additional easements be provided for the franchise utilities outside of the dedicated right of way when such a right-of-way reduction is approved. 2. The cul-de-sac is required to have a 55-foot radius and an improved paved cul-de-sac radius of 45-feet minimum. 3. Sidewalks are required adjacent to the curb. The sidewalks shall be a minimum width of six(6) feet. 4. Street lighting is required to City standards. 5. A traffic mitigation fee of$75.00 per each new single family residence will be required. The fee is discussed in the mitigation measures and is estimated to be $7,162.50 (9.55 trips x 10 new homes= 95.5 new daily trips x$75.00 per trip= $7,162.50). The fee is due prior to recording of the plat. 6. A vertical roadway profile is required during the review of the civil (construction) drawings. Also,the vertical profile at the approach to the intersection with Jones Avenue NE is required. Plan Review-Water 7. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant must be able to deliver 1,000 gallons per minute of fire flow. Hydrants must be located in conformance to Fire Department standards. 8. The Water System Development Connection Charge is$850 per lot. 9. Construction drawings are required to meet City of Renton Drafting Standards. 10. Water main extension size and valve locations need to be shown on the conceptual utility plan. 11. Pressure relief valves need to be noted and shown on the drawings if they will be required. 12. The construction plans should show the finished floor grades. 13. A vertical profile will be required during the review of the construction (civil) drawings. Plan Review-Surface Water 14. Drainage system and temporary erosion control plans for the site shall be designed in accordance with the 1990 King County Surface Water Design Manual, as adopted by the City of Renton. Surface Water(SDC) fees of$385 per each new single family lot will be required. 15. As part of the Kennydale Interceptor Project, a separate storm main will be constructed through the northeast corner of the site. The runoff form this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed, if the plat drainage system is constructed prior to construction of the new public storm sewer main. 16. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and an adequate quality control system. 17. The proposed project is located in the Aquifer Protection Area Zone 2. 18. Through curb inlet will be required at the bottom of the cul-de-sac and at vertical sags (two catch basins required so as to not cause flooding.) 19. The project is constructing more than 5,000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by over-sizing the detention vault, but no calculations were provided. The ERCRPT.DOC City of Renton PB/PWDepartment ;onmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135-PP, V,ECF REPORT AND DECISION OFDECEMBER 16,1997 Page4 of 7 detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design criteria for a detention vault. The vault will need a minimum of one-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to one-third (1/3)the two-year, 24-hour storm volume, plus the required detention volume. The drainage report will need-to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. • Plan Review- Wastewater 20. The proposal will need to be coordinated with the City's Kennydale Sewer Interceptor, that has been designed to go across the plat(northeastern corner of the subject site). Construction of the Kennydale Sewer is expected to occur in the next year. 21. The project would be subject to a Water System Development Connection Charge of$585 per lot. Fire Prevention 22. The minimum fire flow for the single family structures is 1,000 gpm with one fire hydrant within 300 feet of the structure. If the square footage of any of the single family structures exceeds 3,600 square feet (total floor area including garage and basements),the fire flow would increase to a minimum of 1,500 gallons per minute (gpm)with two fire hydrants required within 300 feet of the structure. 23.. The fire mitigation fees are applicable at the rate of$488 per single family building: Eleven (11) single family units x$488.00= $5,368.00. The fire mitigation fees are discussed under the mitigation measures. The fee is due prior to recording of the plat. Parks and Recreation 24. The Parks Mitigation Fee applies to this proposal and is discussed in Mitigation Measures. The fee will be charged at a rate of$530.76 per each new single family residential home. The fee is estimated to be $5,838.36 (11 homes x$530.76= $5,838.36) and is due prior to recording of the plat. Property Services 25. Several comments regarding the preliminary plat drawings were submitted and will be forwarded to the applicant separately. General 26. All required utility, drainage and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a registered Civil Engineer. The construction permit application must include a itemized cost estimate for these improvements. The fee for review and inspection of these improvements is 5% of the first$100,000 of the estimated construction costs; 4% of anything over$100,00 but less than $200,000, and 3% of anything over$200,000. Half of this fee must be paid upon application for building and construction permits, and the remainder when the permits are issued. There may be additional fees for water service related expenses. D. ENVIRONMENTAL IMPACTS In compliance with RCW 43.21 C. 240, the following project environmental review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. Has the applicant adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development? 1. Earth Impacts: The subject parcel slopes to an existing wetland in the northeast quadrant. The western portion of the site is generally flat (proposed lots No. 1, 2, 3, 9, 10 and 11). Slopes across proposed Lot No. 4 averages 15%. Proposed Lots No. 5, 6, 7, and 8, while relatively flat across the lots, have an existing 2:1 (50%) cut slope along the south property line. This cut slope is outside of proposed building envelopes. Slopes adjacent to the wetland (in the wetland buffer) are 35%to 40%. ERCRPT.DOC City of Renton PB/PWDepartment onmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135-PP, V,ECF REPORT AND DECISION OFDECEMBER 16,1997 Pages of7 A geotechnical engineering study prepared by Earth Consultants, Inc.was submitted with the project application. The study notes that four types of soil were observed at the site: fill, silt, sand, and gravel. Clearing and grading would be necessary in order to create the new street, install utilities, and develop building pads. The applicant has estimated the amount of material that would be cut and exported for the construction of the roadway to be approximately 500 cubic yards. Additional cut and fill may also be needed on the site. Temporary erosion and sedimentation control plans would be required and submitted during review of the construction drawings. According to the geotechnical report,the site can be developed provided that the recommendations contained in the report are incorporated into the final design. Proposed structures may be supported on spread footings bearing on structural (compacted)fill or competent native soils. Proposed Lots 5 through 8 would likely require overexcavation of the existing fill material. Overexcavation depths would depend upon the conditions exposed at the time of construction, but a minimum depth of two feet would be necessary. Mitigation Measures: The applicant shall follow the recommendations of the geotechnical engineering study as prepared for the subject parcel by Earth Consultants, Inc. Nexus: Environmental (SEPA) Ordinance (Section 4-6) 2. Air Impacts: Impacts to air quality can be anticipated during construction and after occupancy of the proposed project. Impacts during construction would include increased levels of airborne particulates (especially dust)from disturbance of exposed soils. Construction impacts would be short term in nature and would be mitigated through best management practices of the required Temporary Erosion/Sedimentation Control Plan and with the Construction Mitigation Plan. Emissions from construction equipment exhaust would have a minor impact on local air quality. Exhaust from construction vehicles is regulated by State and City Codes. After construction the impacts would be associated primarily with vehicle exhaust from resident traffic. Vehicle emissions are regulated by the State of Washington. Overall air impacts would be relatively minor in nature and not considered significant to warrant special mitigation measures. Mitigation Measures: No further mitigation required. Nexus: N/A 3. Transportation Impacts: The proposed preliminary plat development would result in an increase in traffic trips on the local street system and therefore would be subject to the City's Transportation Mitigation Fee. The trip generation values are based on the ITE Trip Generation Manual which estimates 9.55 average daily trips per single family residence, or a total of 105.05 new average daily trips for the 11-lot development. The Transportation Mitigation Fee is calculated to be $75 per average daily trip attributable to the project. The traffic mitigation fee is estimated to be $7,878.75 and would need to be paid prior to the recording of the plat. The applicant has indicated that construction would occur during the hours of 7:00 a.m. to 3:30 p.m. Monday through Friday,with no weekend construction contemplated. (City Code precludes site construction on weekends, except construction on Saturdays may occur with special permission.) Hauling of construction materials would is proposed to follow Kennewick Place Northeast south,then head west on Northeast 28th Street, turning south on Jones Avenue Northeast. Kennydale Elementary School is within 500 feet of the site (at Kennewick Place NE and NE 28th Street), and pedestrian and vehicular traffic associated with the school occurs before 8:30 a.m. and after 2:00 p.m. Because of this, staff will recommend that hauling associated with construction be limited to the hours from 8:30 am to 2:00 p.m. If construction occurs during the summer months when school is not in session,then hauling hours could be extended to the off-peak hours from 8:30 a.m.to 3:30 p.m., unless otherwise approved in advance by the Development Services Division. ERCRPT.DOC City of Renton PB/PWDepartment ronmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135-PP, V,ECF REPORT AND DECISION OFDECELIBER 16,1997 Page6 of 7 Mitigation Measures: The applicant shall pay the applicable Transportation Mitigation Fee, at a rate of$75.00 per each new average daily trip attributable to the project. The fee is payable prior to the recording of the plat. The applicant would need to revise the construction mitigation plan to restrict construction-related traffic to the hours between 8:30 a.m.to 2:00 p.m. during the school year, and to the off-peak hours between 8:30 a.m. and 3:30 p.m. during the months school is not in session, unless approved in advance by the Development Services Division. Nexus: Transportation Mitigation Fee Resolution and adopting ordinance; Environmental Ordinance (SEPA) 4-6. 5. Wetlands and Streams Impacts: An existing wetland area is present on the northeast portion of the site, extending off site to the north and east. This is considered to be a headwater wetland that feeds an unnamed tributary of May Creek. Headwater wetlands are considered to be Category 2 wetlands according to the City's Wetlands Ordinance. The wetland boundary was delineated in the field by Sargent Environmental Consulting in March of 1995. The wetland and 50-foot wide buffer area is 26,241 square feet (0.60 acre). The proposal shows a portion of a 15-wide City utility easement as being located in the wetland buffer. This utility easement location is currently being disputed by the City, and the applicant is being advised to revise the drawing to indicate the actual recorded location of the easement, outside of the wetland buffer. The applicant intends to record a Native Growth Protection Easement for the wetland and buffer area. Mitigation Measures: No further mitigation required. Nexus: N/A 6. Parks and Recreation Impacts: The proposal would allow for the construction of 11 detached single family residential units. Future residents would make use of the existing and future City park and recreation facilities throughout the City. In order to mitigate the impact of the development on the City's parks and recreation facilities the City has adopted a mitigation fee of$530.76 per each new single family residence. The fee would be payable prior to recording of the plat. Mitigation Measures: The applicant shall pay a Park's Department mitigation fee of$530.76 per each new single family dwelling unit. The required mitigation fee shall be paid prior to the recording of the plat. Nexus: Parks Mitigation Fee Resolution, Environmental Ordinance (SEPA) 4-6. 7. Fire Prevention Impact: The proposal would add new construction to the City and would potentially impact the City's Fire Department. A Fire Mitigation Fee would apply to all new construction at a rate of$488 per each new single family unit, for an estimated total of$4,888.00 (11 lots X$488= $5,368.00). The Fire Mitigation Fee is payable prior to the recording of the plat. Mitigation.Measures: The applicant shall pay the appropriate Fire Mitigation Fee equal to $488 per single family residential lot. The Fire Mitigation Fee is payable prior to the recording of the plat. Nexus: Fire Mitigation Fee Resolution and adopting ordinance, Environmental Ordinance (SEPA) 4-6. 8. Storm Water Impact: Approximately 0.68 acres of the subject site presently discharges to the west. Of this, 0.17 acres is impervious asphalt driveway, gravel parking area, and shop building roof. The east 2.11 acres is meadow,wetland, buffer, and slope area. Development of the site with new homes, patios,walkways, and the new public street (NE 26th)would increase the impervious surface on the site, and could result in downstream impacts. Stormwater runoff could impact Jones Avenue NE and areas north of the site (Canyon Oaks). ERCRPT.DOC City of Renton PB/PWDepartment .2Pnmental Review Committee Staff Report Plat of Whispering Pines LUA-97-135 PP, V,ECF REPORT AND DECISION OF DECEMBER 16,1997 Page7 of 7 In order to mitigate the potential impacts, four mitigation measures are proposed: 1)to grade the new intersection of Jones Avenue NE and NE 26th to insure that the runoff form the section is properly conveyed to the east side of Jones Avenue NE; 2)to use infiltration discharge design where possible for the new homes; 3)to design the stormwater system beyond City Code requirements as noted below; and, 4)to provide split discharge design to discharge the 2-year and 10-year design storms directly into the wetland. Mitigation Measures: a) The grading of the new intersection at Jones Avenue NE shall lower the peak grade of NE 26th to 261.5 feet to help insure that the runoff from this section of new street is properly conveyed to the east side of Jones Avenue NE, rather than sheet flow across the street to the west side of Jones Avenue NE. b) The final engineering plans for the site shall include the use of infiltration discharge design where possible for the single family structures. c) The final drainage control plans for the site shall be designed to discharge: one-half of the 2-year pre-developed discharge through the two-year design storm; one-half of the 10-year pre-developed discharge through the 10-year design storm; and,with overflow occurring when the 100-year design storm with thirty percent (30%) factor of safety detention are exceeded. d) The final drainage control plans for the site shall provide a split-discharge design to discharge the two-year(2- year) and ten-year(10-year)design storms directly into the wetland. Furthermore,the plans shall provide for the diversion of flows from storms greater than the ten-year design storm into the Kennydale Stormwater Interceptor. Nexus: Environmental Ordinance (SEPA). E. COMMENTS OF REVIEWING DEPARTMENTS The proposal has been circulated to City Departmental/Divisional Reviewers for their review. Where applicable, these comments have been incorporated into the text of this report as Mitigation Measures and/or Notes to Applicant. X Copies of all Review Comments are contained in the Official File. Copies of all Review Comments are attached to this report. Environmental Determination Comment Process Comments regarding the environmental determination must be filed in writing on or before 5:00 PM January 5, 1998. Any aggrieved person feeling that the environmental determination of the Environmental Review Committee is based on erroneous procedure, errors of law or fact, error in judgment, or the discovery of new evidence which could not be reasonably available at the time of the determination may submit written comments. After review of the comments, if Environmental Review Committee finds there is not sufficient evidence to amend its original determination,then there will be no further extension of the appeal period. Any person wishing to take further action would need to file a formal appeal within the original 15-day timeframe. Written comments must be filed with: Jana Huerter, Land Use Review Supervisor, City of Renton Development Services Division, 200 Mill Avenue South, Renton, WA 98055. If an appeal of the environmental determination is also filed with the Hearing Examiner during the same 15-day comment period,then the Environmental Review Committee will first take action on the request for reconsideration and the appellant will be notified that the appeal is on hold pending the Committee's decision on the reconsideration request. The City will notify the appellant/person requesting reconsideration and parties of record and the Hearing Examiner of the Environmental Review Committee's final determination. The appeal process will then be continued unless the appellant notifies the Hearing Examiner in writing that he wishes to withdraw the appeal. Environmental Determination Appeal Process Appeals of the environmental determination must be filed in writing on or before 5:00 PM January 5, 1998. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 200 Mill Avenue South, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)235-2501. ERCRPT.DOC PRELIMINARY PLAT OF • WHISPERING PINES PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 LEGAL DESCRIPTION PARCEL 3 PROJECT DATA • 30TH • Sr. 4, 3ITE THAT PORTION CF TRACTS 255,256,257,275,276,277 OF CD. COSMO ZONN6 MEE F6•LY(R-8) HALMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO.4,ACCORDING PVOPOSR°ZSUR SINGLE FAMILY(R-6) TO THE PLAT THEREOF RECORDED IN VOLUME If OF PLATS PAGE t12, ISITE/CREWE OTs p itA A� I.,i �1'. 1 RECORDS OF KING COUNTY,WASHINGTON,DESCRIBED AS FOLLOWS: L615 FOR ACRE 025 i i' BEGINNING AT THE NORTHWEST CORNER OF TRACT 277; AyY 6T T �i S;A, aD THENCE SOUTH 89'43'59'EAST 114.44 FEET ALONG THE NORTH LINE OF < A SAID TRACT TO THE TRUE POINT OF BEGINNING; ROADS 0 THENCE CONTINUING SOUTH 89'43'59"EAST 517.16 FEET; THENCE SOUTH 00'34'06'WEST 221.97 FEET TO A POINT ON THE SOUTH RONT IMAGE 421 UEAL FEET W/L LINE OF SAID TRACT 255; THENCE SOUTH 6959'33'WEST 517.62 FEET ALONG THE SOUTHERLY LINE OF � 0'TRACTS 255 AND 275; LOT SIZING THENCE NORTH 0013'45'EAST 80.05 FEET; , THENCE NORTH 895213-WEST 94.15 FEET TO THE BEGINNING OF CURVE TO CROSS SELF AREA(5STJ: 2.78 ACRES(121.364 SO.Ell 12TH ST. TOE LEFT HAVING A RADIUS CF 20 FEET; WAS PROPOSED R/•AREA _. 6.55 ACRES 25.105 50.FT.) THENCE ALONG SN CENTRAL N 6N EN D aJRVE THROUGH A NTRAL ANGLE CF 89'34'02% -AREA LOTS D OP 5P.E1TRCT'A a Y)- .221 ACR13(NMI SO.R.) MI HAVING AN ARC LENGTH OF 31.26 FEET TO A POOR DV THE EAST UNE CF - CPDI SPACE(TRACT VIM AREA -26.01 SOFT.(a61 A0•S)o1a s SeC KU WO LOT JOKES AVENUE; RN L FROTH • 60 FEET AREA RI RLPQ4D R/V 25,I95 SOFT.(036 WINS)01111 or SITE Ass,THENCE NORTH 0013'45'EAST 90 FEET ALONG SAID LINE: T THENCE SOUTH 0013'45'WEST THROUGH A CENTRAL ANGLE OF 90R5'58' HAVING AN ARC LENGTH OF 31.57 FEET; THENCE SOUTH 895213'EAST 94.29 FEET; p THENCE NORTH 00'33'45'EAST 94.40 FEET TO THE TRUE POINT OF NOTES i BEGINNING.: - 1.No"oU3D(51R1Tc1uRL5 6R[PROfV9D TO BE mItiIRIROim off R6 512 ' 0_ 3 Of _ LOT u 10-68KNRECORADED UNDER RECORDING O..B60N 290f LINE ADJUSTMENT NO. '!� SITUATE IN THE COUNTY OF KING STATE OF WASHINGTON. VICINITY MAP OWNER / SURVEYOR / ENGINEER NO SCALE OWNER: NANCY BENNETT 2612 JOKES ME.N.E RENTON.WASHINGTON 98056 N.E. 26TH STREET COL ENGINEER: ROBERT W.O'CONNELL.JR. P.E. NO.18093 MC MM.! SURVEYOR: KENN VANDERZANDEN P.LS. NO.30427 -.... 12'E" •• 8 'L.i 1 I CURVE"I RADIUS I LENGTH I TANGENT I DELTA •• • • • • - CI 55.OU' S0.59' 27.2{' S2{2'07' .., C2 55.00' 24.14' 12.27' 25'OB'49' 6 3.1I.JU 1218• C3 55.00' 37.62' 19.58' 39'11'36- 40 0 40 80 d I C4 55.00' 35.52' 18.40' 3700'13' SCALE/N FEET • S . C5 55.00' 22.87' 11.60. 2549'1 Er N 1 u,EN u'MAP I C6• 25.00'A I 11.97' 6.10' 2726'21' RF.iiM. J N 89'43'59'W 517.18' 15' A a.. w ;2}1 r Y •54.29. 1.�'60.06 60.00' 90.07' --1 .�:.8• 247.&7' `� 30`a I I �4...✓/ 26 Ip 15•CITY OF RENTON 2'IALt 4•. UTILITY EASEMENT '-7I *. �E4' LOT 1 W W A-ID zl'12'I . ';P. •`sCO A-2 I •• R �•. WETLANDS (TRACT "Al = I I d 3�i,,;y�2 04 u$ 1 v_ 2 v 3 L 1• N. _ "�" A-1395'32' 26,078 sq.ft. 1. 1. m 4 '1'I R-50.00' S I NOT PART OF in m 5,866 sq.ft. g 5,891 sq.ft. Po m 5,882 sq.ft. Po m 7,377 sq.,� N 29'42'06"E 41' L-11.43'\ St ' THIS-SUBDIVISION ' R z 'z 2: 36.M 0. sr IN 6.52' TRACT'X. A-3 .334351020E1 rf �lJ A-9075'58' 8 10'WIDE PLANTER/ A-74465 IF 5, �. \Z 393 sq.ft. -.7, VMTART SERER Mr Z yr 1 R-20.00' z UMW&SIDEWALIC R-2500' +/ A-4 i6 - DRDCR..T EU m 3 L-31.57' EASEMENT I L-3263' j I� _AA-7 { 3 ]1R N 8952'13'W 94.29' \•; A-5_ •-6 • 60.03' 60.00' 60.00' 20.68' 9 1 08 .o$ +. W \E a s a 4 a F s N.E. 26TH PLACE * } 8 `2 25 :m' a - N 8952'13'W 421.94"V a - - - - 30 °>' mysm 'Tn B 39250' RSP �r o It 6Run Far ill k .4? RIGHT-OF-WAY z `°•2' ,s ,�3 W IUTT POE _� $ �,,yyT�7! 25,195 sq.ft. _ ' . 8 �. 'JAF� I ,gy 15'an 6 RENTER LIMIT. E9�1 T n a' ' 6&75• 68.75' 68.75' 35.54' �` F CST4oE ••\ AI W _ N 8959'33'E S 561FTMr SORN tN/ -- p• ': 201192' N 8952'13'W 94.15'. _ T -_e5 C4 ~S7,g RARER ENO A'7U?0. .- 68.20 -24,u 3 i. 0 10•ME PLANTER `59 ri• �•A S -31s6' LOT 2 UTILITY&SIDEWALI/( W -4• Ir -L' 6RRERAT I• :i;i i,:i ef'281,)) m .m . EASEMENT . W 5 0 11 10 1 9 h S 8' " 7 6 .8 IT In 5.773 sq.ft. o 5,762 sq.ft. 85 750 q.ft. 8 m •5,603 •sq.ft. PR,+1• 5,659 sq.ft. ^ 7,223 sq.ft. 8.914 sq.ft. n NOT PART OF In SZRT 916P 8• 'PI°' _342SC:212e c THIS SUBDIVISION "n z Y 10'WIDE E91'T FOR • 8 8 SLOPE PROTECTION z a, L z 68.75' 6$75' 68.75•---_- 69.00' 81.00' z 75.00' T 86.35' I N 8959"33-E ` 517.62• P. C / I \ 23 \ 22 I / 21 20 I 19 ` DATE: SCALE: - 12/05/97 I 1--40' , • :-. PRELIMINARY PLAT OF • _ N.E. 28TH STREET - WHISPERING PINES I l'I 1 1 g • (A PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86 -, El I 20 PLANT./. le N.A.N./ i a. !MTV TUFT ST 3/IT Is. 3.stir LIMIT IS. a_ l'i„. N liti8B411 ART.,. a.1 Jo o Jo eo NOTE ii• 0..,.=__, )________________,,_,i,f SCALE/N frer t • ALL'FREES LT1NG ALONG 26T0 AVE.NE. l._ TO BE REI1OVED g La 21-2 .....u, • g 5ET_Z -- .,Lo PROPOSED ROAD SECTION 3343902181 3343902180 N.T.S. ,.(: ,•.• z re E c• 1 --...,_ -"A„ ,, ., • , 05.. : „ • P ceMm , %. ,.'i, • 0',± Z. 30,.1 3902845 g LLT = .'••• ii. 1 ' 33c LOT 1. • § F. I ... I • w 0. i Tr----7 ‘i• ....L. -,.r \- .:1 a\ \,t,./, ---22: , \ • ',W 4 I I 0 1 N I I OM SCREAM i -..ix.-: Tolln...............4it,....... rFrAc‘r.),..., _ WEITANDS • . I ,1"--Larl......... I LOT 2 5/I 1_0'N ...\:\, ,...,I.,:‘,..40...410.11....... ...„, ,,,,,,s , _ ...._. _ mom 44.4 ,.• ./ Am Nan ..44,...4 N.sm." I Am Pan,. I 1 7.377-n 4,. .41.. •59 ..-• I.A. [Ff43 g t.i...4 I r"--- I ' i I , _, ---_-----r,,,,,. ---.. 3343902061 1 lit, •- .. _"l' .;,'.........•-9.-4.mai .7 I I )`. I 17 7aw sh77. . I —------ - — ____\_ , _.. I- L _I L_D\-... -___I i__..,..-• . ;,...Z .1. '.. ....II : ,, ., , ,::.,, ,,____E-. •2 I,..- t,J:, '+'4 ...., -,‘ -‘- , • - r' *.-.""` 611-1 PLN, .,- „„_, fk7.1._._IIIIIIIIIL _ .8.a ›-.Z g.i :I.1 211 1:' t awl. -.:"•• e• •^ • • .- ..-1-- ...:-- .? . '"'• .2!:25,'• ' NrCk "10.-..: g L.)1:4 .c ::, x•xs-,7.-q... i I " • ..'. i:' ' ;1 p?.. ,:-.;.—il.-- - ,; .-' l''!'';• T' 't ., •• ,,..,, •-• ..... ;r• ,.,;._,,— - . 11P..' 'j 'Nft-' 1- - - -'1 --. -... •oc,;.• ; . ,...,......, mr.. ' •-•••••-•..N. ,.--_-.. - - 2 E AI*. 1 - I,- __T.? " 1_ ,,or ro. ..,,... g„___•7".4.unurt E....T____.____,,,,,_ V 1 4. ..... '". • ---- P.7.-;"i , .'_. ,'-" Mmft. ...0r_. -- WAILTIst:SarT i-s•-.....—Si.— r:_.-.....,.--- g--- - .,,,LA • •-...°4 l' 4 r---Nc----I r-- ,-‘-—I -1—=---4T asaa. —I r ---- -- _:).„. '-^s,... ----/.--- --.... /..-444 -. • \ .n -•, • 3343902910\ / -- .1 I 'T'''-',.,,, 25 *NOMA'MD DISIND • • I \ . 1 I 1. \ ' ' i _::\ I i ..---..-1 r--- Min 1 1 Y \I • LOT 8 LOT 7. -4-----_, LOT 6. I LOT 5. .I I ,.LOT \ I 1 ,.471)1.1,7 4i, I .0.101 no .1,1 zi . -I,..1 • 1 z 3.60.1 91 FT ----WASII-SO._!1____,..., I 11.01.VI FT ;RI... t.: .... _ h EQ:10 • • ' • \ I I I I ' I I \____ I .1 \ I I ,.•,.- .,..I I 'I.;'..+1. ----..,, I ..\! 1 1 0 ial4 I I ' 7 I . 3.343902120 co.. _, 1:---.--9.9:61. j-- - LOT 2 ''A 11 - I ' - . •-..,..•, ,.... ;- ' I_ _ - i ,• - .el. ... —_I I_ ——— ——I': ,. 1.1 _I I_ _1 .k_. I *--N •, ____ ,,,,.___\.., 1:,. .\,,,.._....; .! - ---\ I- - c____--._: _--- •-• - -----'- ---.-----.-- --.--vai rL„,Teryl.. .. ._.__ ,.--.-,--, '1 ..e. .. ..- ...I . • 1 No.MO DV.MIA; 1001 PONT STA.NASA • ' LOW PONT ILLY•}SIBS PA 01Y.21101•.;,-! LOW POW STA•NIII. E AP...750 ,.`N VA STA.NON iTTI[LEV•r4.1.7. 3 g •.CP •i2 rt./SONE LOOLOO -k_o 1 1 iiif1 - .‘co.vc -------—.., -------,./.1. .6. ./•••••• SO.CO•VC— .v. T / r•, LEGEND „ i oi , _ ----.. PROPOSED MAIER LAE , VI N EXISPNG WATER IHE . g 2511 .. ' NOrimaNsii;[... Me • III -'",,SE*ER— :0170SED'"ANSANIR7 SEwER UNE •. L\4-[ MERANO RAG OVVNER . i rar WS°•OSOIT . 00270... ..p. •,_ OHNER: NANCY BENNETT 26.2 JONES AVE.N.E. Wow-1.01 RENTON.WASHINGTON 98056 • -F.04.‘. . I . • —. NO SURVEYOR: KEVIN VANDERZANDEN PLS. NO.30427 W-.35.69 g ' . onme S3 I•1 HIT 555 : 1-7-01111E1-. . • ' :nu'?i ,,,,- :-.• 0,....,. CPA MMUS•CONNIAANIS aglia •Fi,T. .'.-.1.1r MOO 300f1•1 SOW BM. •In•r L AND MIMI;IA•103. - ',A .6 ..SIC • ,.r. TIRS) 1-0101 ..1.- 91 * g D emorioarr cr.C N.ot-ion Q N ft ift M % 51i.. 6 E2VICES NCO NCO NCO NCO 12=iTirMi'A GROUP 1 g . N.E26TH PL ...,..... • A—NNNNAA • • • • • CITY OF RENTON . . . PLANNING/BUILDING/PUBLIC WORKS DEPARTMENT MEMORANDUM DATE: DECEMBER 4, 1997 TO: JENNIFER HENNINGr FROM: NEIL WATTS IV I w SUBJECT: PRELIMINARY PLAT OF WHISPERING PINES DRAINAGE CONTROL PLAN We have reviewed the additional information provided by the engineer for the above listed projects addressing our concerns for drainage impacts along Jones Ave NE, and in. the Canyon Oaks complex area. This additional information and project revisions adequately address these concerns, and we recommend approval of the project, with the following conditions: 1. The grading of the new intersection at Jones Ave NE shall lower.the peak grade of 26th PI NE to 261.5 feet to help insure that the runoff from this section of,new street is properly conveyed to the east side of Jones Ave NE, rather than sheet flow across the street to the west side of Jones Ave NE. S a(I -1 2. The final engineering plans for the site include the use of infiltration discharge design where A possible for the single family structures. --- 3. The final.drainage control plans for the site shall be designed to discharge 1/2 of the 2 year pre-developed discharge through the 2 year design storm, the 10 year pre-developed discharge through the 10 year design storm, and with overflow occurring when the 100 year design storm with thirty percent (30%) factor of safety detention volume are exceeded. 4. The final drainage control plans for the site shall provide a split discharge design to discharge the 2 and 10 year design storms directly into the wetland, and to divert flows from storms k greater than the 10 year design storm into the Kennydale Stormwater Interceptor. cc: Clint Morgan • Ron Straka The O.L.D.S. Group 4620 2001h Street S.W.,Suite F Lynnwood WA 98036 Phone:(425)712-9688 Fax: (425)712-9832 Memo BNNT-OI-WSPN To: RON STROKA CC: Jennifer Toth Henning City of Renton City of Renton Surface Water Management '. From: Bob O'Connell Date: December 1, 1997 Re: Preliminary Plat of Whispering Pines Ron: ;During a recent conversation with,dennifer Toth Henning concerning the review of the Preliminary Plat documents by the City of Renton, she mentioned that you have concerns about the intersection of Jones Avenue Northeast and proposed Northeast 26"' Place storm drainage. The major concerned seemed to be the possibility of overshoot of storm water flows from 26"'Place into Jones Avenue. We have reviewed our design and would like to propose an alternative to the catch basins and pipe you suggested. • ' ANALYSIS: Current Conditions - Storm water from the driveway, homes and yards of the houses adjoining the proposed 26th Place right of way flow onto the ACP driveways and then into Jones Avenue. There are no current problems with this flow pattern. There is an existing curb line along the east side of Jones Avenue both north and south of the proposed 26th Place intersection. Storm water from the street currently flows southerly from the crest of the hill, approximately 110 feet north of the intersection to a catch basin in the shoulder of Jones Avenue approximately 240 feet south of the intersection. Please see Pages 7 and 8 of the Engineering Design Report. Proposed Conditions - The current design for the grading of the intersection of the streets relies on the predominate southerly cross slope of 26th Place to direct storm water along the east margin of Jones Avenue. . The proposed storm water mitigation plan will limit the amount of storm water discharged from 26"' Place to a maximum of that discharged at pre-developed conditions. The storm water would exit 26th Place along the southeast curb return of the intersection. A shallow gutter would be formed along the east margin of Jones Avenue across the intersection. The gutter would carry the drainage away from both Jones Avenue and 26th Place. Proposed Renton Resolution - Installing catch basins and a discharge pipe along the east margin of • Jones Avenue will channel the drainage away from the intersection. It will require the removal and replacement of approximately 200 feet of existing Jones Avenue pavement,5 to 8 foot width,installation •Ione 1 Thiilg alma GROUT of a storm drain line. While this is not an onerous condition we believe the drainage issue is better addressed by the following proposed revision.. Proposed Revision - We have included a drawing that shows more detail of the grading at the proposed intersection. In order to mitigate entry street slopes we have lowered the peak grade of 26th Place to 261.5 from 262.0 on the original drawings. The gutter formed along the east edge of Jones Avenue is sloped much steeper to the south than the cross slope of either Jones Avenue or 26"'Place, which will keep drainage from 26th Place from flowing into the travel lanes of Jones Avenue. SUMMARY: We feel that Our proposed revision will provide the same level of storm water channelization as the city's request for a catch basin and pipe system. We request acceptance of the revision in lieu of the structures and pipe. Should you have any questions or require additional information please call. • • • .. 4 BNNTO1-MM 1 •Page 2 •Il'1Hll ®OLJD O GROUP —, _- / . P ii ' ' ce •/�',0 431 ;.;x gam" CcL� 11 3 ��.- �� :ARBED ce �,n,r 3 .W / 943902845 ': w 30 . _ +.1 3 — — — oR►vEwa , Z r _ __I a !10° 1 . °' Z 1D PA OF 5,g66 sq. ;�. 5e - SURD VISIONi,l� 30 1 AsP W I = 14'�vU I ry 2'6 ,C"-LS A,'E- N.-. I,o I / o _ _ W L _ _ — — QI � o = 90 'S'�" L F Z'--. z �— 4 ,6PJC. AL o �_o— 31.5 ' • N 89'S2'13' W DRIVEWAY 3 _----- - "—VOA. W ' Nmc7.5 \0 Z ;.- -a _ N r,..• tyro �- O Q \ p _-dam 4 .. -� - i ��,co Iiii ASPH lijk \ .1 N ---- -�--- r' CONC. SIDE •ILITY POLE U, 1110•11;001WW. — — -- • -- --=..` 9. ,nu rr POLE Z �\ 1 . ct\ N 8' W �� 1,., it 1 — iITARY SEwER_ { /� 31.26' 3343902840\In r \ 3 = 243t ,. CSC�. :tDRIVEWA\: NOT PAR 1LOT ��',•ioI it_j - HIS SU xI �w :.1 5,773 sq•f DRIVEWAY , a\ . 30. . ) -.4) I 1 LOT 2 _ _ __ _ V'to ,.;1- �,-JE. P:.E. Lo 2,,1 r. to : - . \ imil Z N°� • Ilk.- W 0 \-2-=-7-1QLj---0 o C' . \ 3 4' ••OWE' � - Aso 334390A638LI1 \ 1 y . I ®oLo1oayo i I }, ��u J caN.,30a GEM) O'CONNELL LAND DEVELOPMENT SERVICES DEVELOPMENT PL N�N!Nc. . O'CONNELL ��=RFIVT�� :4620- 200th St. S.W., Suite F • Lynnwood, WA 98036 . • • Office: 425-7 2 96 O1 F Fax 425 712-9832 � fi �� RECEIV November 28, 1997 Ms. Jennifer Toth Henning Project Manager Planning/Building/Public Works Department City of Renton 200 Mill Avenue South Renton,WA 98055 Re: Plat of Whispering Pines Project No.LUA-97-135,PP,ECF,V Dear Ms.Henning: In reference to our discussions of November 26, 1997-concerning the issues raised by the City of Renton Environmental Review Committee (ERC) related to storm drainage release from the Plat of Whispering Pines we have prepared the following response. THE ISSUE: Downstream Impact to Canyon Oaks From our discussions it is my understanding that the ERC members expressed concern about potential impacts by storm water discharges from the Plat of Whispering Pines on conveyance into and through the downstream Canyon Oaks complex. This concern is based on previous flooding of the Canyon Oaks complex. ANALYSIS: Current Submittal The issue of storm water discharge volumes from the Plat of Whispering Pines has been addressed in the Engineering Design/Preliminary TIR Report (EDR) submitted to the City of Renton as a portion of the Preliminary Plat Application. • Please see Exhibit II of the TIR, the Downstream Analysis, appendix pages 18, paragraph five, and 19,paragraphs one and two, for a discussion of drainage into and through Canyon Oaks. No signs of frequent flooding was observed approaching or through Canyon Oaks. Below the Canyon Oaks complex is an open channel flowing northerly into May Creek. • Please see Pages 9 through 14, Retention/Detention Analysis, for a complete analysis of the discharge volume and time of concentration calculations. As noted in the report the system is designed to discharge %2 of the 2 year pre-developed through the 2 year design storm, the 10 year pre-developed discharge through the 10 year design storm and overflow occurs when the 100 year design storm with thirty percent (30%) factor of safety detention volume are exceeded. For the most common storms, high frequency/low peak with a one hundred percent chance of occurrence, ie one/two year design storms, the system as designed will limit discharge through the two year design event to one half of pre-developed discharge. The design increases the time of concentration of the peak surface water storm discharge for the 2 year design storm into the wetland area from approximately 18 minutes, Page 12 of EDR/Appendix Page 1, to a little more than 13 hours, and only during 10 year design or greater storms,as the worst condition. • The system as designed would discharge all storm events through the wetland at the northeast corner of the site. • Infiltration was considered to mitigate site discharge requirements. While infiltration maybe used for single family roof discharge, the location, size and approval of these individual infiltration systems will be more closely examined during preparation of final project plans. CONCLUSION: Observations and Recommendations Given the above analysis the O.L.D.S. Group would like to offer the following observations and recommendations concerning the Preliminary Plat of Whispering Pines storm drainage discharge impacts on downstream areas. 1. OBSERVATION - The storm drainage system was analyzed and modeled in accordance with the City of Renton Storm Drainage Ordinances and the King County Surface Water Design Manual, 1990 Edition and 1994 revisions for Wet Vaults. 2. OBSERVATION - Results of the above procedures show that the Plat of Whispering Pines will reduce and delay peak discharge volumes, which should benefit the Canyon Oaks complex. See the EDR Appendix for modeling results. 3. OBSERVATION - The City of Renton has noted in recent correspondence that this project may use the proposed Kennydale Storm Water interceptor as a point of discharge for the developed site storm water system for flows greater than the 10 year design storm event. 4. OBSERVATION - The Interim May Creek Critical Drainage Ordinance allows the City of Renton to impose additional detention requirements for this storm system. The additional measures include restriction of the developed 10 year design storm to the two year pre-developed discharge volume for detention volume analysis and similarly the restriction of the developed 100 year design storm to the ten year pre-developed discharge volume. It is our understanding from city staff that the proposed final May Creek Drainage Basin Plan, as prepared by King County will drop these discharge limitations to match discharge requirements for the rest of the city. 5. RECOMMENDATION - Approve the Preliminary Plat of Whispering Pines as currently proposed with the following conditions: A. That the final engineering plans for the site include the use of infiltration discharge design where possible for the single family structures. B. That the final design provide a split discharge design will all discharge from 2 and 10 year design storms directed into the wetland and flows from storms greater than the 10 ten year diverted into the Kennydale Stormwater Interceptor. C. That the engineer show as part of the storm water design report for the Plat of Whispering Pines construction permit submittal that downstream volumes from this plat have been mitigated in deference to the Canyon Oaks complex. SUMMARY: The above recommendation, if adopted by City of Renton in part or whole, should provide the margin of safety the city seeks in protecting the downstream drainage course into and through the Canyon Oaks complex. While there can be no guarantee that flows from the developed Plat of Whispering Pines storm drainage system will not cause adverse impacts to the downstream drainage courses due to hydrologic cycle variations or changes, other area development and potential changes to downstream conveyance materials or facilities by others,the O.L.D.S Group does warrant that in accordance with modeling and analytical methods prescribed and accepted by the City of Renton that the discharge from the Plat of Whispering Pines will not be greater than pre-developed or existing conditions. Should you have any questions or require additional information please call. Respectfully, THE O.L.D.S. GROUP y 0"),t.1"-W, Robert W. O'Connell Jr.,PE Principal BNNT-01-LTR7 ¶llaOOLOIO OcI uI — alma Giui O'CONNELL LAND DEVELOPMENT SERVICES 4620- 200th St. S.W., Suite F • Lynnwood, WA 98036 Office: 425-712-9688 • Fax: 425-712-9832 BNNT-01-WSPN November 17, 1997 Ms. Jennifer Toth Henning Project Manager Planning/Building/Public Works Department City of Renton DEVELOPMENT PLANNInil nl. ,. 200 Mill Avenue South Renton, WA 98055 NOV 2 4 1997 Re: Plat of Whispering Pines Project No.LUA-97-13 5,PP,ECF,V Dear Ms. Henning: • In response to your letter of November 14, 1997 the O.L.D.S. Group has contacted the various City of Renton reviewers for,the above project to discuss the comments made and included in your letter. From these discussions we have prepared the following reply to clarify issues noted in your letter. Issues are addressed as numbered in your letter. 1. We will correct the Engineering Design Report Page 5, Paragraph 3, to delete reference to the Cedar River Drainage Basin and use Lake Washington in its place, in line,2. We were trying to show that discharge from the Whispering Pines site naturally enters streams which flow into May Creek and Lake Washington through the May Creek and Cedar River Drainage Basins, respectively according to King County Drainage Basin maps. Please see Exhibit 1-A of the Engineering Design Report. 2. Our understanding of a conversation with Mr. Ron Stroka is that the vault sizing issues.were noted as requirements for the final plan. We will revise the Engineering Design Manual to be more emphatic that the water quality facility for this project is a Wet Vault meeting the design standards of the City of Renton. The, process followed on Page 13 "Detention System Design" more than meets the requirements for a Wet Vault design for horizontal area and dead storage volume. A Wet Vault has been approved as the site water quality treatment facility for this project. Additional design information will be submitted with the construction permit plans. It is our judgment that the vault, shown on the preliminary design, has been sized to provide more detention and storage volume than will be required at time of final design. As discussed on Page 12, Paragraph 2 of the Engineering Design Report a vault has been used for this analysis as it is the worst case solution for detaining and treating storm water discharge from this site. 3. The analysis requested is based on a comment, #12, by Clint Morgan from your November 14 memo. Mr. Morgan states that storm water model inaccuracies will lead to increased runoff volumes from the site potentially adversely impacting down stream wetlands and properties. The O.L.D.S. Group storm water analysis has modeled site drainage in accordance with the procedures of King County Surface Water Design Manual, revised November 1995. We do not have enough information to be able to evaluate the impacts of model inaccuracies. Please see Pages 9 through 12 of the Engineering Design Manual for a discussion criteria and requirements met in our design. It has been our intent to meet the requirements of the City of Renton Storm May Creek Drainage Basin Plan as drafted. Whispering Pines would gladly revise its discharge system so that flows greater than the pre-development ten year design discharge will go to the new Kennydale interceptor. Infiltration is a method that we would evaluate at the time of fmal design to mitigate peak flows and is available as noted on Page 12 of the Engineering Design Report, but infiltration will require extensive coordination with the site environmental and geotechnical consultants before design recommendations can be made. 4. We are requesting a revision of the easement location. This was discussed with the City of Renton during our pre-application meeting of February 18, 1997. We were advised to suggest an alternate location to minimize sewer construction and maintenance impact. The location shown on our plans is the revised location. By shifting site elements, ie the vault and catch basins, it might be possible to move the greater part of the proposed Kennydale easement out of the buffer area and still reap the efficiency of the shorter path and fewer structures offered by the revised location over the previously dedicated. This matter is being evaluated by Ron Stroka of the City of Renton. 5. New fire hydrant locations are shown on pages 4 and 5 of the Whispering Pines plans set submitted with the SEPA Checklist. The hydrants as located provide adequate coverage for all new proposed structures. The O.L.D.S. Group will add the valves, profile and material callout information as part of the construction/permit plans to be submitted after preliminary plat approval. The proponent has instructed the O.L.D.S. Group to use a conservative approach when evaluating the various storm drainage and development issues related to this site, which we have done. This has included discussing project components with city staff before the submittal and their comments since the beginning of review. The conservative approach is reflected specifically in the use of a Wet Vault for the storm drainage system. A Wet Vault is expensive to construct, requires comprehensive maintenance and is generally difficult to engineer due to existing condition requirements, but in this case is required to mitigate storm water ullm OOalo-oho GROUP quantity/quality discharge for most of the site. While infiltration may ultimately mitigate the size of and discharge from the Wet Vault, and overall site discharge impacts, we requested review of the greater impact design as it maybe the only facility that will function in this location. Many of the comments made by City of Renton staff as a part of your November 14, 1997 letter will be addressed in greater detail as part of the final construction/permit plans after the feasibility decisions of the Preliminary Plat Application are made. We do appreciate the direction we have received from the city staff comments and we will incorporate them. Rather than reissue the full Engineering Design Manual for the few changes noted above would it be possible to issue replacement pages? Based on the comments in your letter and the information presented above we do not believe the plan set needs to be revised. Please advise if you feel otherwise. Please call if you have any questions or require additional information. Respectfully, THE O.L.D.S. GROUP Robert W. O'Connell Jr.,PE Principal 711ffs OOIO)000 GROUT • CITE: OF RENTON' . Planning/Building/Public Works Department f Gregg Zimmerman P.E.;Administrator Jesse Tanner,Mayor November 14, 1997 . • Mr.Robert O'Connell,Jr. -: 4620 200th Street SW,Suite F - Lynnwood, SUBJECT: PLAT,OF WHISPERING PINES(PROJECT NO.LUA-97-135,PP,ECF,V) :.•.Dear Mr. O'Connell: City staff have conducted a review of your application for the Plat of Whispering Pines: . We have , •' -• :•determined that additional information is needed before the Environmental Review Committee (ERC) . - can consider your application. We have tentatively rescheduled the project•with the ERC for:November 25, 1997, pending the receipt of the additional information as' discussed below.. Staff comments are - • • - attached for your reference.- :: -• ' Specifically, additional information is needed rerdmg the,proposed utility systems., The stormwater - "r eport and/or conceptual utility plans need to be revised to: _ '.'?ti : 1) correct the report:on page°,5;paragraph'3,to state that the project site drains to May • Creek and Lake Wa shington,not the Cedar River: ,. 7i', 2) provide the size-;information and_calculations foi ;the`:proposed wetvault•.to meet required detention;and describe the proposed water.quality:treatment, 3 provide_an analysis of the mcreasel volume of rdiioff to the wetland. An assessment: ;of the potential impacts to;the;wetland and do'vnstrream system,and, . : • �r, _ u 4 show the correct City utility,easement on",.the conceptual utilities plan; ' • 5)) show the existing:and proposed fire hydrant locations, main,extension size and valve locations on`the conceptual utilities drawings." :.' :Other comments have been included regarding,the proposed street for the plat. The date of the public hearing for the project has also been rescheduled,:and is tentatively rescheduled • for Tuesday,December 23,1997 at 9:00 am:':The hearing,before Mr:Fred Kaufman,Renton Hearing Examiner, will•be held in the City Council-Chambers on-the`'second`floor of City Hall, .Renton, Washington. The applicant or representative of the applicant is required to be present at the public hearing. A copy of the staff report will be mailed to you one week:before the hearing: •'• Please contact me at(425)277-6186 if you have any questions regarding this correspondence. Sincerely, . , • emufer oth Henning:. :. :.. :.Project Manager cc:•Ms.Nancy Bennett •es fRecorrd - -arts o p •\DIVISION.S\DEVELOP.SER\DEV&PLANING\PROJECTSV7-135.JTI-1\1114LTR.DOC; . .+ .. ' . 200 Mill Aveiiue'Sduth_:Renton,Washingtoii:98055• • Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development Services EIS Review November 10, 1997 SEWER: 1. Street name labeling on drawings are incorrect as shown.. It should be written as follows: NE 26th Pl. for roadway inside the plat. 2. This project is to coordinate with City project planned for this fall for the Kennydale Sewer Interceptor going across the northeastern corner of the proposed site. 3. The Waste Water System Development Connection charge is $585 per lot. STORM DRAINAGE: 1. As part of the Kennydale Interceptor Project,a separate storm main will be constructed through the northeast corner of the site. The runoff from this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed,if the plat drainage system is constructed prior to construction of the new public storm sewer main. 2. The System.Development Connection charge is$385 per lot. 3. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and a adequate quality control system 4. The proposed project is located in the Aquifer Protection Zone 2. 5 Through curb inlet required at bottom of cul-de-sac and at vertical sags (2 CB's Required so as to not cause flooding. 6. Vertical profile plan required and note all utility crossings. 7. The City will not maintain the proposed detention vault. Therefore a homeowners agreement document will be require to maintain the vault. The following comments are from a memorandum to Clinton Morgan from Ron Straka. 8. The project site does not drain to the Cedar River as indicated in the drainage report. The site drains to May Creek and Lake Washington. Page 5,paragraph 3 of the report needs to be corrected. 9. Storm drainage improvements are required at the intersection of Jones Ave.NE and 26th Pl.NE (the new plat Street). A cross culvert under 26th Pl.NE is required to convey runoff along the east side of Jones Ave.NE. • 97CM180D.DOC\ 10. Soil types indicate that infiltration of storm water runoff from the site is feasible,but the Engineer has rejected it according to the drainage report. Infiltration of the runoff is preferred. 11. The surface Water utility and Wastewater Utility have a recorded 15'utility easement over the project site. The location of the existing utility easement is shown incorrectly on the project plans and needs to be corrected. John Hobson of the Wastewater Utility will provide the applicant a recorded copy of the Utility Easement upon request. 12. The Surface water Utility and Wastewater Utility will be constructing.a storm system interceptor and sewer interceptor in the recorded utility easement in 1998. The onsite drainage system could be designed such that the predeveloped runoff(allowable release rate)for up to the 2-year and 10-year storm events could be discharged to the wetland on the site to maintain wetland hydrology. The storm water releases associated.with storm events greater than the 10- year storm could be discharged to the proposed new storm system interceptor. The project will increase the peak rate of runoff and volume of runoff being discharged to the wetland,which flows in a small stream between homes to May Creek. The increase in volume of runoff and peak rate due to model inaccuracies could adversely impact the wetland and the downstream properties. 13. The project is constructing more than 5,000 square feet of impervious surface subject to. vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by oversizing the detention vault,but no calculations were provided. The detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design criteria for a detention vault. The vault will need a,minimum of 1-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to 1/3 the 2-year, 24-hour storm volume plus the required detention volume. The drainage report need's to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. • . 97cm18Od • • • 97CM180D.DOC\ • Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development Services EIS Review • November 10, 1997 WATER: 1. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant will deliver 1000 gpm of fire flow. This condition is not met on conceptual plan. Hydrant location must be acceptable to the Fire Department. 2. The Water System Development'Connection charge is$850 per lot. 3. Construction drawings to meet City of Renton Drafting Standard. 4. Main extension size and valve locations not shown on conceptual plan. 5. Pressure relief valves to be noted and shown if needed. 6. The construction plans to show the finished floor grades. 7. . A vertical profile will be required for the construction plans. 97cm180W ' . • 97CM180W.DOC\ , WHISPERING PINES PLAT 2612 Jones Ave NE EIS Review Development Services November 5, 1997 TRANSPORTATION: 1. The right-of-way width is required to be 50-feet for the proposed 26th Place NE roadway. 2. The Cul-de-sac is required to have a 55-foot right-of-way radius and a improved paved cul-de- sac radius of 45-feet minimum. 3. Six(6)foot sidewalks adjacent to the curb is required. 4. Street lighting required to City Standards. Note: The proposed plans do not appear reflect all of the above requirements 5. The transportation mitigation is $75 per new trip generated for a 24-hour period. The rate is based on the ITE trip generation manual. 6. A vertical roadway profile required. Also include the vertical profile at the approach to the intersection with Jones Ave.NE. • • 97CM178.DOC\ • ti _ • "S-• O U ;_ :r•' FRA '�•• + .III a s . EErr.<•s1.•,..,.�ai�^.l�w,=..�5.....:c..•r'....,,.»x�a.-,.:'vv.:v+.. :R. . .v.. '` u,.,.�'�'�'.�1' E•��.�"i:ICLSI"L Project Name 01415/-eviecci .Pi.it Play" Project Address 2612. Joi.te5 Ave Contact Person Rol,evt O}Cowirte(I Address 4620 - 200" St , Sucre f , LvklAwood. ('iA 91 $D3(' Phone Number (2 06 ) - 71 Z - 96?S • Permit Number LUA - q7 — 135 Project Description /0 .(4�-7 5I I Ir �u iei i /�r /,/cj Land Use Type: Method of Calculation: L"Residential LATE Trip Generation Manual q,55 t v,p5 0 Retail 0 Traffic Study /477 0 Non-retail 0 Other • Calculation: . N „„o kohl .v,ps (,55) (io) z� 5, 5 dlirly tvip, ..._......_ At $75 (42') Irif • 0c5, 5 ) ( 1.75) 1. 7162. . 50 Transportation Mitigation Fee: 7I62. 50 Calculated by: 1V (Na6 Date: i0/31 97 Account Number: • Date of Payment • RENTON FIRE DEPT Citybrenton Department of Planning/Building/Fuuno Works ENVIRONMENTAL & DEVELOPMENT APPLICATIONoenVglOW SHEET REVIEWING DEPARTMENT: Fwe- ir2VRAlknr\ COMMENTS DUE: HOVE U i 9 D APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell,Jr. PROJECT MANAGER: JENNIFER TOTH HENNING PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 LOCATION: 2612 Jones Avenue NE SITE AREA: 2.8 acres I BUILDING AREA(gross): N/A SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare • Plants Recreation • Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services • Energy/ Historic/Cultural Natural Resources Preservation • Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS AJ C. CODE-RELATED COMMENTS SPA `w P .7 97 t-PA TS- hi , We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional information is needed to properly assess this pr posal. Signature of Director or Authorized Representative Date DEVAPP.DOC Rev.10/93 w U.fY O� . C. CITY OF RENTON FIRE PREVENTION BUREAU MEMORANDUM DATE: January 27, 1997 TO: Jennifer Henning, Planner ()/ftc_ FROM: Jim Gray, Assistant Fire Marshal SUBJECT: Whispering Pines Plat, Jones Ave. & NE 27th CT. Fire Department Comments: _ 1. A fire hydrant with 1000 GPM fire flow is required within 300 feet of all new single family structures. If the square footage of the structure exceeds 3600 square feet in area, then the fire flow increases to a minimum 1500 GPM.and two hydrants are required within 300 feet of the structure. 2. A fire mitigation fee of$488.00 is required for all new single family structures. Please feel free to contact me if you have any questions. City ,ten ton Department of Planning/Building/I :Works ENVIRONMENTA.L & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: S l ,i�4I UJ U OMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF- " DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell, Jr. PROJECT MANAGER: JENNIFER916FRfi PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 ucT 2 9 1997 LOCATION: 2612 Jones Avenue NE SITE AREA: 2.8 acres I BUILDING AREA(gross): N/ U,La.JrIa - u v tsION SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review.for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ HistoridCultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet 5 � `a 'a.6 1,, vvSP--c-z te-- rev/m B. POLICY-RELATED COMMENTS VIn Cl V a zz e, cm ul d [4 -av e a. in d v t se-- 1 ,-, -p.a c f t -r des , �,�c2.( p ev- '�� C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have Identified areas of probable Impact or areas where additional information Is needed to properly assess this proposal. Signature of Director or Authorized Representative Date DEVAPP.DOC Rev.10/03 Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development Services EIS Review November 10, 1997 SEWER: 1. Street name labeling on drawings are incorrect as shown. It should be written as follows: NE 26th P1. for roadway inside the plat. 2. This project is to coordinate with City project planned for this fall for the Kennydale Sewer Interceptor going across the northeastern corner of the proposed site. 3. The Waste Water System Development Connection charge is$585 per lot. STORM DRAINAGE: 1. As part of the Kennydale Interceptor Project,a separate storm main will be constructed through the northeast corner of the site. The runoff from this site should be directed to this new storm sewer main. Installation of a flow spreader at the base of the slope will be allowed,if the plat drainage system is constructed prior to construction of the new public storm sewer main. 2. The System Development Connection charge is$385 per lot. 3. Runoff collected from pavement and gravel surface with vehicle access/parking must flow through oil/water separator and a adequate quality control system 4. The proposed project is located in the Aquifer Protection Zone 2. 5 Through curb inlet required at bottom of cul-de-sac and at vertical sags (2 CB's Required so as to not cause flooding. 6. Vertical profile plan required and note all utility crossings. 7. The City will not maintain the proposed detention vault. Therefore a homeowners agreement document will be require to maintain the vault. The following comments,are from a memorandum to Clinton Morgan from Ron Straka. 8. The project site does not drain to the Cedar River as indicated in the drainage report. The site drains to May Creek and Lake Washington. Page 5,paragraph 3 of the report needs to be corrected. 9. Storm drainage improvements are required at the intersection of Jones Ave.NE and 26th P1.NE (the new plat Street). A cross culvert under 26th Pl.NE is required to convey runoff along the east side of Jones Ave.NE. 97CM180D.DOC\ Ilot, 10. Soil types indicate that infiltration of storm water runoff from the site is feasible,but the Engineer has rejected it according to the drainage report. Infiltration of the runoff is preferred. 11. The surface Water utility and Wastewater Utility have a recorded 15'utility easement over the project site. The location of the existing utility easement is shown incorrectly on the project plans and needs to be corrected. John Hobson of the Wastewater Utility will provide the applicant a recorded copy of the Utility Easement upon request. 12. The Surface water Utility and Wastewater Utility will be constructing a storm system interceptor and sewer interceptor in the recorded utility easement in 1998. The onsite drainage system could be designed such that the predeveloped runoff(allowable release rate)for up to the 2-year and 10-year storm events could be discharged to the wetland on the site to maintain wetland hydrology. The storm water releases associated with storm events greater than the 10- year storm could be discharged to the proposed new storm system interceptor. The project will increase the peak rate of runoff and volume of runoff being discharged to the wetland,which flows in a small stream between homes to May Creek. The increase in volume of runoff and peak rate due to model inaccuracies could adversely impact the wetland and the downstream properties. 13. The project is constructing more than 5, 000 square feet of impervious surface subject to vehicular use and is required to provide water quality treatment by biofiltration or wetvault. The drainage report indicates that the project will provide water quality treatment by oversizing the detention vault,but no calculations were provided. The detention/water quality treatment wetvault has to be sized to meet the design criteria for a wetvault in addition to the design criteria for a detention vault. The vault will need a minimum of 1-foot of dead storage for sediment accumulation along with the water quality treatment storage equal to 1/3 the 2-year, 24-hour storm volume plus the required detention volume. The drainage report need's to be revised to show that the sizing of the project detention/wetvault meets City design standards as part of the project construction plan review. 97cm180d 97CM180D.DOC1 City,,..ienton Department of Planning/Building/Pik L :Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT:—1V I -h{s.v\ COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell, Jr. PROJECT MANAGER: JENNIFER TFKKON PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 LOCATION: 2612 Jones Avenue NE UCT 2 9 1997 SITE AREA: 2.8 acres I BUILDING AREA(gross): N/14i4.am. ,,„ SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS • C. CODE-RELATED COMMENTS some, • e6ti,n cv 1reuie-eei -m ev-, eSa We have reviewed this application with particular attention to those areas In which we have expertise and have identified areas of probable impact or areas where additional Information Is needed to roperly assess this proposal. Signature of Director or Authorized Representative Date DEVAPP.DOC Rev.10/93 WHISPERING PINES PLAT 2612 Jones Ave NE EIS Review Development Services November 5, 1997 TRANSPORTATION: 1. The right-of-way width is required to be 50-feet for the proposed126th Place NE roadway. 2. The Cul-de-sac is required to have a 55-foot right-of-way radius and a improved paved cul-de- sac radius of 45-feet minimum. 3. Six(6)foot sidewalks adjacent to the curb is required. 4. Street lighting required to City Standards. Note: The proposed plans do not appear reflect all of the above requirements 5. The transportation mitigation is $75 per new trip generated for a 24-hour period. The rate is based on the ITE trip generation manual. 6. A vertical roadway profile required. Also include the vertical profile at the approach to the intersection with Jones Ave.NE. 97CM178.DOC\ • • G��Y• yt 1:21RA I+ '•�•"• ';^�.a:fr ^'.':D....v.��.. S�tW'kL�!�ifM,,��fOMw :....''.".�wwy�ip•, '•'..:�.Qt+•r�. .l:ox.. .q[— ..�w)...{...,.•_ 5r:.. '4,Y`•i�G>M��y��T�/�•t:��P�QRa ':R^TLC}�V> I�}�.T.��1�� , .. h� a._.% .^:aw,.:wn+a'r..✓ ,+e.»..Ro..an..�`vr,T:r+utL.vwaa...r � ��M.i?a;,/'••v. ^�'=� Project Name .01415p-eevi'i PHia4 Pied-- Project Address 26 LZ Jost Ave /‘JL Contact Person RobeYt 0)Cow PldII , jY. Address 46Z0 - 200{'1 St. 51,0 , 5u1-td -F Lc c4jdoc( oJA d( 8O3Co Phone Number (206 ) - -7/Z - q,SS . Permit Number LUA - q-7 - 135 Project Description l0 (vT s!Pici lr iti devi Land Use Type: Method of Calculation: 0/Residential ["ITE Trip Generation Manual q.55 t v,ps ❑ Retail 0 Traffic Study loT ❑ Non-retail 0 Other Calculation: NcT mu.) kohl tips (1.55) (10) _a '15, 5 bili/17 tvw t $75 (AR1 try p 05, 5 ) ( 75) = 7 / 6Z - 50 Transportation Mitigation Fee:. 47(62, 50 Calculated by: ' AV WAA Date:. 10/3+1/47 Account Number: Date of Payment - ' City_.-. enton Department of Planning/Building/ Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: 043A Re4leui — tAzur COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF • DATE CIRCULATED: OCTOBER 30, 198 OF REhiroii APPLICANT: Mr. Robert O'Connell, Jr. PROJECT MANAGER: JENNIFER TOTH HENNING PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 NOV 3 1997 LOCATION: 2612 Jones Avenue NE SITE AREA: 2.8 acres I BUILDING AREA(gross): N/A c'i'II"— "'JiON SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also.requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air _Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic./Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet MCA t -Co 1 e(// ED 1iZ ' B. POLICY-RELATED COMMENTS • C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas In which we have expertise and have Identified areas of probable impact or areas where a iti nal Info ation Is needed to properly assess this proposal. • � —, ///7J/� Signature of Director or Authorized Repre ntative Date DEVAPP.DOC Rev.10l83 Whispering Pines Plat 2612 Jones Ave.NE. NE 26th Place Development Services EIS Review November 10, 1997 WATER: 1. A fire hydrant is required to be within 300 feet of each structure. One fire hydrant will deliver 1000 gpm of fire flow. This condition is not met on conceptual plan. Hydrant location must be acceptable to the Fire Department. 2. The Water System Development Connection charge is$850 per lot. 3. Construction drawings to meet City of Renton Drafting Standard. 4. Main extension size and valve locations not shown on conceptual plan. 5. Pressure relief valves to be noted and shown if needed. 6. The construction plans to show the finished floor grades. 7. A vertical profile will be required for the construction plans. 97cm180W 97CM180W.DOC\ I,- CITY OF RENTON PLANNINGBUILDING/PUBLIC WORKS MEMORANDUM DATE: November 21, 1997 TO: Jennifer Toth Henning RECEIVED FROM: Sonja J.Fesser Ji UBJECT: Plat of Whispering Pines LUA-97-135,PP NOVN 2 1 1997 Format and Legal Description Review DEVELUrrYitiv i PLANNING CITY OF RENTON Bob Mac Onie and I.have reviewed the above referenced long plat submittal and have the following comments: Note all existing easements of record on the drawing. The 15 foot City of Renton utility easement shown on the drawing is not drawn to conform to bearings and distances noted in the the utilities easement document recorded under King County Recording No. 8911170514. Please'note that this recorded easement is not noted in the title report. Note that the existing two-story shop is to be removed. Note the appropriate quarter-section, section,township and range under the title information at the top of the drawing sheet. The proposed name of this plat has been used elsewhere in King County. Perhaps a different plat name should be considered. • Information needed for final plat approval includes the following: Note the city's land use action number (LUA-97-XXX-FP) and the city's land use action number (LND-10-0331) on the drawing,preferably in the upper right-hand corner. The type size used for the land record number should be smaller than that used for the land use action number. Please note that the land use action number for the final plat is different from the preliminary plat number and is unknown as of this date. Make ties to the City of Renton Survey Control Network. See the attached. The geometry will be checked when the ties have been made. Provide plat and lot closure calculations. Note discrepancies between bearings and distances of record and those measured or calculated, if any. November 7, 1997 Page 2 Include the basis of bearing,per WAC 332-130-050 1.b.iii. Include a statement of equipment and procedures used,per WAC 332-130-100. Indicate what is,or has been, set at the corners of the proposed lots. Note the date the existing monuments were visited, per WAC 332-130-050 1.fiv, and what was found. Note that jLthere are restrictive covenants or agreements to others as part of this subdivision,they can be recorded concurrently with the plat. The plat drawing and the associated document(s) are to be given to the City Clerk's office as a package. The plat shall have the first recording number. The recording number(s) for the associated document(s) will be referenced on the plat in the appropriate location(s). Note to whom new easements,if any,are to be granted(private or City-held). An updated plat certificate is needed(dated within 45 days of Council action on approval of the plat). Addresses for the proposed lots will be provided by the City after the preliminary review. The addresses will need to be noted on the drawing. The property owners' signatures need to be notarized and the signatures should be preceded with a certification and dedication block. Required City of Renton signatures are: the Administrator of Planning/Building/Public Works, the Mayor and the City Clerk. An approval block for the city's Finance Director is also required. Because this property is located within Zone 2 of the City of Renton's Aquifer Protection Area, the Aquifer Protection Notice needs to be noted on the drawing. See attached. Complete City of Renton Monument Cards,with reference points for new right-of-way monuments. Fee Review Comments: The Fee Review Sheet for this preliminary review is provided for your use and information. ',.4,0.',;1-11:',;::.i•i',4,: ::,"::., -.• -. • .'• . ... • • .1 `.,'. 1l tl • Y-'.•:i-TA. Ft...i..k,. +J..'.. A . • THE LOTS cat=,6. N>= f I-1 FALL AQUIFER PROTECTION NOTICE .THIS NOTICE SHALL 9 ADDITION THAT LOTS 1 THROUGH 16 OF WARREN'S ADDITION ARE LOCATED WITHIN ZONE 2 OF RENTON'S AQUIFER PROTECTION AREA AND ARE SUBJECT TO THE REQUIREMENTS OF THE CITY OF RENTON ORDINANCE . #4367. THIS CITY'S SOLE SOURCE OF DRINKING WATER IS SUPPLIED FRCM A SHALLOW ACQUIFER UNDER THE CITY SURFACE. THERE IS NO NATURAL BARRIER BETWEEN THE WATER TABLE AND GROUND SURFACE. EXTREML • CARE SHOULD BE EXERCISED WHEN HANDUNG OF ANY LIQUID SUBSTANCE OTHER THAN WATER TO PROTECT FROM CONTACT WITH THE GROUND SURFACE. IT IS THE +HOMEOWNERS RESPONSIBILITY TO PROTECT THE CITYS DRINKING WATER. • • • . 1. PR' ES FEE REVIEW FOR Sti:../VISIONS No..97= -Y--;:? o- • "APPLICANT: �E--1- ) W L 1-( • . RECEIVED FROM date JOB ADDRESS: ?.r I Z ., j ept_l�� ,it„v ,. 1�1 P WO# 7f3 Z S� O N TURE OF WORK: In r+t- )� l� -pi-A-I- ,i 1-n� W HI° LND# 1n - O3:L PRELIMINARY REVIEW. F SUBD y; ION.B LONG LA , NE D MORE I ORMATION:.• ❑•LEG-AL.DESCRIPZION SHORT PLAT,BINDING SITE PLAN,ETC. ❑ PID#'s 0 VICINITY MAP 0 FINAL REVIEW OF SUBDIVISION,THIS REVIEW REPLACES ❑ SQUARE FOOTAGE 0 OTHER PRELIMINARY FEE REVIEW DATED• ❑. FRONT FOOTAGE XSUBJECT PROPERTY PARENT PID/{3-9,d.5g0-2GY 4• IX NEW KING CO. TAX ACCT.#(s)are required when assigned by King County. It is the intent of this development fee analysis to put the developer/owner on notice,that the fees quoted below may be applicable to the subject site upon development of the property. All quoted fees are potential charges that may be due and payable at the time the constriction permit is issued to install the on-site and off-site improvements(i.e.underground utilities,street improvements,etc.) Triggering mechanisms for the SDC fees will be based on current City ordinances and determined by the applicable Utility Section. Please note that these fees are subject to change without notice. Final fees will be based on rates in effect at time of Building Permit/Construction Permit application. ❑ The existing house on SP Lot# - ,addressed as has not previously paid SDC fees,due to connection to City utilities prior to existance of SDC fee Ord. SP Lot# will be subject to future SDC fees if triggering mechanisms are touched within current City Ordinances. XWe understand that this subdivision is in the preliminary stage and that we will have the opportunity to review it again before recordation. The following quoted fees do NOT include inspection fees,side sewer permits, r/w permit fees or the cost of water meters. SPECIAL ASSESSMENT DISTRICT PARCEL METHOD OF ASSESSMENT ASSESSMENT DISTRICTS NO. NO. ASSESSMENT UNITS OR FEE Latecomer Agreement(pvt) WATER _o_ Latecomer Agreement(pvt) WASTEWATER -0 - Latecomer Agreement(pvt) OTHER _0- Special Assessment District/WATER /_ I..rot 4_ ILI D. lc, I.li=.E-1--)r_3D Pi *,6 RD3011k -It tc AsciU06..L H 4--Iobol-CY eF nriu etc. Special Assessment District/WASTEWATER -pL4.-J± u Icy�1=• /F 7 SYS. To ipicir CI-ph.(. S"( - i-•-1 . Joint Use Agreement(METRO) -o _ Local Improvement District -o- Traffic Benefit Zones -- $75.00 PER TRIP,CALCULATED BY TRANSPORTATION -o - FUTURE OBLIGATIONS -o- ' SYSTEM DEVELOPMENT CHARGE-WATER 0 Estimated #OF UNITS/ SDC FEE 0 Pd Prey. 0 Partially Pd(Ltd Exemption) 0 Never Pd SQ. FTC. Single family residential$850/unit x I0 t 8,500.o C Mobile home dwelling unit$680/unit in park Apartment,Condo$510/unit not in CD or COR zones x Commercial/Industrial, $0.113/sq. ft.of property(not less than$850.00)x Boeing,by Special Agreement/Footprint of Bldg plus 15 ft perimeter(2,800 GPM threshold) SYSTEM DEVELOPMENT CHARGE-WASTEWATER 0 Estimated ❑ Pd Prey. .❑ Partially Pd(Ltd Exemption) 0 Never Pd Single family residential$585/unit x 10 5, 3SO. 00 Mobile home dwelling unit$468/unit x Apartment,Condo$350/unit not in CD or COR zones x t Commercial/Industrial$0.078/sq. ft_of property x(not less than S585.00) SYS1 I:M DEVELOPMENT CHARGE-SURFACEWATER 0 Estimated ❑ Pd Prey. 0 Partially Pd(Ltd Exemption) 0 Never Pd Single family residential and mobile home dwelling unit$385/unit x ICE 3r0.00 All other properties$0.129sq ft of new impervious area of property x , (not less than$385.00) PRELIMINARY TOTAL $ #8,,i?oo.r'Y---) "IDLL)5 *. tr 1117i n) C 4 I Id) 97 �("5 . " L1Q Signal of Retying Authority only A A1oovc-) Q ❑ If subject property is within an LID, it is developers responsibility to check with the Finance Dept. for paid/un-paid status. ❑ Square footage figures are taken from the King County Assessor's map and are subject to change. c N ❑ Current City SDC fee charges apply to rg c:/template/feeappl/tab EFFECTIVE. filly 16 1oocica..,t M . A[nf ACAI Acno 1,1c .c•,, ... •" . ... .... .. . . . .. . • • .,--"••••,).,„ • „ • ,:•,, . • • i :•"•.•:•'',, • '....„••• • ' • • . . . • ' ' • ' : : • : • 9,: • , ..,;•,:•:,24" „......".--„., "''''• ' • : • • : • : •... .•' • : . : . : :' • : :' : • : : . . • • : - : • . : . . . : . .•' : : . : . . . 40 . ....:.e/ „•••••••*" :•••"" . •. . . i i , 09 i ! ....••:.:::7 ..../......,' i.:. .....„ -17 • • : . • • • : : • . • : • • .• : • • . •. . . • • • , • • • % '! i i : i ' ! : : ' : '• : ' : : i ! , ! : : ' i : : : : ' • ' • ' • . : • • de. . ' ••••••..••••• f / i 4 : • c.„.. ' ; • Al' i i•••• , t6:: : : •; : : : : : : ; i ; i : • : ; : : : ; H : : : : : , i ; ; : ; ; : . / ...." :•:•• r c,4) • 4 C • • ' '0 . . •s" •,' / J.i 1•--* 1 r•• % „ - : ; : ; ; ; ; ; ; : ; : ; : : . : ' : ; : ; . ; : ; ; ; • . . : . i, : L............ ,..... ..,... „, ‘ i , .: i . , . : , , , . . : . , . ; : i , . : : . ; . , , . . . : , , , . , , ...• ...• „..•••••• .„..,....,:i ; .e ., ...............i.s„.. ...,,..k....,. •.,.. i:. %11„ . : , : • : . : : , , : . ; : ; ; ; : : : : ; i : : : , i . i . ; , .... .. ....„ 4:.,. .„, 1.- -, -% . ; ; ; ; ; ; ; ; • . • • . • • ; I : : col , . •••• ../...." : . •••. ; % : • : • • • : • . • •• •. • •. . : . : . . • .../ .. . . . •. oo ?:: : ,........i •• • : , : , .. .. . , . „. . 1% . , ' : • , : , : , • • • : • • ••••:,.... , ‘• , ; ; ' ; : ; : : , : : . : • : . : ; . • : : CP.. .. ..• . ' : : ::'• . : . • OP , Z , a i •e r- , • •...:. • . "kb . : • ! : : . • . : . /..-:1• ;0°1 i •j•-••••••• ts••••-s ij j . , N) • IN.) C.., .•" .." . / .„4 .5 , .. .•. : i '% . : : : : : . : : • ; ; ; • •,... • : • . ..•• .,/,,,. cc, cc) c . „ : ;%,. , , : , , : , • .: ,.• • • ; ; •% • • ; . ; I do.. i \D . ••••'. •'' ...• oi ...•••.:. : . ..!..•••• ...••••' ........ ...., „ .. •!: • : ; % ; i i i ; ; , 0,,,,,,,' 0.: 7 .43, 1- -• •••••••.:....... .......„..,::::;:„..---' . .. 17.7%! -- .-----........-.." •I\O-\ ...../ ...; -7- •-.1.- N, ; 0 %7 : •••.... •••••••••• .... •-N?„,••••••••:-.:.".,-"•.°$ ''''',/ ii 2 .1. ND . 60 '1. : , ...:' ' ,• • .•..... : i %Pe'.: 2... : .:.•'•. ..-*•• '''••'" ex"'" 0\ • i I I\) :2 :3 ••: ' . •'.....s . V••••." 1 1 CP) I--t .....,.....'''''"."........„.••••••s.:;.. ,:.••••• • c lA2k......:....; „.... .......... .. .....„..... ,.......:,,,,,,. i s...-• . . co ..•• ••••• ...„." .......- • .. i • - •,•• , .: :Carden .,: z czliz :: :, v) , . . , 1-Pi c,4 . • • . • .... .: = .--' Ct. ' r" N.) ',..‘ . oo 1--Li• cp :.•:. .. ... •..... . N) - >. •-•4- i =.. ; • Meadow 1 NE v- • • ) •„: , n-- , . , u 1 t,- ..... s.• ;•• ,....,,,,,, . ....,,,....., ... „.. .., • . .........., • . . .f„ . ,.._ ...,..... ••• • "•‘" "— ----„, ) , 1 •• __.• ...,,....................................... (....,, 1,, t' (.11 tn co ...............,........... • „.. ......................• Jones Ave. NE ; •, . , ,,... tv c) 4, OD ...........•-•••••::::::::• :::::: • „„ „,„ ......./ el (AO %/4•0 i i: :. ,•:. _%. ' ,.... ••" .•••••'''CY). `" .••••" IN 4... ..4 .. " ' 2 : • / .."' . . 03 C.43 .,i -,••:-- ./1 : i.".. .." f-"1-/ •2 .. . :1 =..• • ..•., •••• . ...Kennewick L 4 z. Kennewick .. . •• co rn , j .1.../rri .„.. Lincoln „..,.•••••.....-.„,.,,,••,..i.::, , f ,• . __,. . -• CDf. .......„4....?„.... N..) 4 ,i, r-t-• . .• r-1- :i ., : D • I f .. : : .... . ,n terey = ,. Monterey. 1 Monterey ; , • '..! ,:. . . ye. NE ,--.-- ,.. .•. : z ......, • ••.....................,„.., • . ...•••••••• i ; • ; ; • •• .• . ...... • 1 .., . ,., , ! r.r-r.,, • , e. ND Aberdeen Ave. NE ........'......'..• .- , ; $. . i ,Aberdeen Ave. NE t•sb "• • ... .------ ,---.-• ,. :. _...._,. i ; -""- :: .:• ,: m•- :: . • c.)-1 0-) . : ., • , 1,--2. 0• ':".X. Blaine Ave. -NE '• :i. • — -• - ••••••••.. • ...............„,..............1 N..). :: • . rn . Camas . In ,-I- . 4 . , • SiC t''''t". • D''. i ( J ' • • :i • :' :: •i N.) .. . ......................••..... :',,..•:•:1 ::' ......• ' ..... '., :r i'• . . :•Dayton 1 • . ..., Dayton .: =-- . „ • • :... i :i , . . Dayton . • - .v) .; i• :i, DaytQa : . • .......,:.,,, . co -- K., ; i i - , , ..•.../•:'•',..t\. co • .. 0.3 i i • r...% 1/4...A-4 . ...•...": : I : . i / -N2 i• C) 1 . Edmonds Ave. NE !.': . co i ••D $ CI "N7 : •• ••• /W..,••'••••'••' . ......... . . .. , .••••• •: ' ' "1Y.'..„"' ................ '...."" "Aril..................."."'"'"4.................................. ..... .. .... I r"111".1.61. • :,i i• i ' = : . :.: ,. ': • -7. &• ,•_.... .i Z ' i •'....\ • ?• : x ?: M • rT1 :: :'• • • rn . oet)s, 1 . : , .. ; :. • : , ,?: J.i . _ i. N.) ::r.-----/ ; .:: • : r...-) • . . '170£5 . . . CRID • j.. !!‘gligaP:e.;) ' ' • • .., . . ......,. . • s.. ilI10 + Pi , '47 ii110 -A . ••:6:;-, 0,4 . . CA , ,•• hoax ;• . ... X7 . .... + . , = < MIMS .. 0 °V 2.4 • 0 M moll lia• . '< ..< .. -.„ 11 ib W r 4 -• 0 n. ., I.i 6....1 ' . 0 0 tri 4 )-' ''':'' . el- • N el- r-4 0 0.4 •• -i; ,... , CAD o t\D 13) I . rii Z —ri • ..:.:: • py e cA) ,.... co 7,., A LT] 717 7:1 RC) Z ,•N 0 . -' CAD r offid t\D I . 4 ‘ d 0 M IC/ il Z Xi tri i::i li cri PJ 144 PI Z Immil @ < •:;:. C.I.) . 1'41 C'l .111 0 14MMI 0 ' 0 0 13, jp.it Z 1.."tri ik..1• kJ' • 73 0 . ....,.. tin . - SECTION 5 T23N R5E W.M. 24-Oct-96 Horizontal: NAD 1983/91 Meters Vertical: NAVD 1988 Meters '57 NW Corner 9 T23N R5E Location: Found a 3" flat brass disc with "X" and a punch mark on a concrete post monument down 0.5'at the constructed intersection of NE 12th Street & Edmonds Avenue NE. Monument: 3 IN BRASS DISC W/ [X] & PUNCH ON CONC MON, IN CASE, DN. 0.5' NORTHING: 56830.947 EASTING: 398127.629 ELEVATION: 99.496 71 • Location: Top of 2 1/2" brass disk set in concrete monument 11'8 S. and 9' east of intersection of Aberdeen Avenue N.E. and N.E. 12th Street. Monument: BRASS DISC IN CONC MON NORTHING: 56834.084 EASTING: 397723.712 ELEVATION: V 86.756 250 V : Location: Top of 1/4" brass plug set in concrete monument 4' east of centerline intersection of Aberdeen Avenue N.E. and N.E. 16th Street Monument: BRASS PLUG IN CONC MON V NORTHING: EASTING: ELEVATION: 93.606 266 N 1/4 Corner 5 T23N RSE. V Location: Found a 1/8" copper pin on 5"diameter round concrete monument post down 0.2' in a monument case at the constructed intersection of NE 28th Street & Jones Avenue NE. See City of Renton monument reference card#266. Monument: 1/8 IN CU PIN ON 5 IN DIA. CONC MON, IN CASE, DN. 0.2' NORTHING: 58347.931 EASTING: 397335.034 ELEVATION: • . 75.552 V � 4; 5305-1 SECTION 5 T23N R5E W.M. 24-Oct-96 Horizontal: NAD 1983/91 Meters Vertical: NAVD 1988 Meters 334 Location: . Top 1/8" brass nail set in concrete monument at intersection Jones Avenue N.E. and N.E. 24th Street. Monument: BRASS NAIL IN CONC MON NORTHING: EASTING: ELEVATION: 74.475 341 Location: Top 5/8" steel rod set in concrete monument in case 3' east of centerline intersection Park Ave. North and N. 30th Street. Monument: 5/8 IN STEEL ROD IN CONC MON, IN CASE NORTHING: EASTING: ELEVATION: 61.343 369 W 1/4 Corner 4 T23N R5E Location: Found a 3"flat bronze disc with a punch mark on concrete post monument down 0.5' in a monument case in the constructed centerline of Edmonds Avenue approximately 185 feet northerly of its constructed intersection with NE 20th Street to the west. Monument: 3 IN BRONZE DISC & [X]W/PUNCH ON CONC MON, IN CASE, DN. 0.5' NORTHING: 57635.367 EASTING: 398135.222 ELEVATION: 101.368 l ' 5305-2 ,, SECTIONJ5 T23N R5E W.M. • 24-Oct-96 Horizontal: NAD 1983/91 Meters Vertical: NAVD 1988 Meters 1300 Location: Found 3" brass disk stamped 106.619 "King County Survey monument EN 86 1973"2.2' east of back of walk on east side of Edmonds Ave. N.E. 136' north of N.E. 16th street. Monument: BRASS SURFACE DISC NORTHING: EASTING: ELEVATION: 106.619 1836 Location: Found a 1/8" bronze pin in a round concrete post monument down 0.4' in a monument case at the constructed intersection of N 30th Street& Burnett Avenue N. Monument: 1/8 IN BRONZE PIN ON CONC MON, IN CASE, DN. 0.4' NORTHING: 58563.567 EASTING: 396538.792 ELEVATION: 36.586 1837 Location: Found a 2-1/2" brass disc with an "X" and a punch mark on a concrete post monument down 0.4' in a monument case at the constructed intersection of NE 25th Street& Edmonds Avenue NE. This monument has a City of Bellevue (COB) GPS station designation no. 0349. Monument: 2-1/2 IN BRASS DISC W/"[X] & PUNCH ON CONC MON, IN CASE, DN. 0.4' NORTHING: 58061.034 EASTING: 398138.999 ELEVATION: 96:691 5305-3 • P SECTION 5 T23N R5E W.M. 24-Oct-96 Horizontal: NAD 1983/91 Meters Vertical: NAVD 1988 Meters 1839 Location: Found a 1/8" copper pin on concrete post monument down 0.4' in a monument case at the constructed intersection of NE 20th Street & Jones Avenue NE. Monument: 1/8 IN CU PIN ON CONC MON, IN CASE, DN. 0.4', NORTHING: 57570.050 EASTING: 397327.479 ELEVATION: 85.090 1886 NW Corner 5 T23N R5E Location: A brass nail in concrete in a monument case on Burnett 125 feet south of North 28th Place. 0.76 feet below rim. Monument: BRASS NAIL ON CONC DN 0.76' IN MON, CASE NORTHING: 58361.030 EASTING: 396532.414 ELEVATION: 31.919 1900 . Location: Found a punched 1.5" brass disk in 10" monument case approximately 200' south of Ivar's resturant and 35' east of tide wall at Gene Coulon park Monument: 1.5 IN BRASS DISC W/PUNCH MK. IN MON. CASE NORTHING:, 57214.409 EASTING: 396908.116 ELEVATION: 1934 Location: PK nail'in paved shoulder of Sunset Blvd. N.E. on north side of street, 11' east of guard rail, 55' east of 1-405 overpass. Monument: PK NAIL NORTHING: EASTING: ELEVATION: 35.516 5305-4 • SECTION 5 T23N R5E W.M. 24-Oct-96 Horizontal: NAD 1983/91 Meters Vertical: NAVD 1988 Meters 2117 Location: Set 3 1/2" brass disk stamped "City Of Renton BM" in the N.W. corner of concrete base of signal bridge at the railroad crossing at the north entrance of Coulon Park. signal bridge base is located south of the entrance road into Coulon Park and west of the railroad tracks. Monument: BRASS SURFACE DISC IN SIGNAL BRIDGE NORTHING: EASTING: ELEVATION: 11.355 2118 Location: Set 3 1/2" brass disk stamped "City of Renton BM" in the S.E. corner of concrete base of'southerly leg of high voltage power tower. Tower located north of the entrance road to Puget Power's Shuffleton Steam Plant and west of the entrance road to the south end of Coulon Park. Monument: BRASS.SURFACE DISC IN CONC. BASE POWER TOWER NORTHING: EASTING: ELEVATION: 7.343 5305-5 • City' ,4enton Department of Planning/Building/I ... Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: p26.Arimi COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell, Jr. PROJECT MANAGER: JENNIFER TOTH HENNING PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 LOCATION: 2612 Jones Avenue NE SITE AREA: 2.8 acres I BUILDING AREA(gross): N/A SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Environment Minor Major Information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet /C2. ( 67-)(91-106.6(— -/ c7t) " B. POLICY-RELATED COMMENTS d q Pa/W66-71-2-01-Zir 1-2(3, s3 4- 530 C. CODE-RELATED COMMENTS • G,e , �� We have reviewed this application with particular attention to those areas in which we have expertise and have Identified areas of probable Impact or areas where additional information is needed roperly assess this proposal. / gnatu30/ e of Director or Aut or ed Representative Date P DEVAPP.DOC Rev.10/93 City:...tenton Department of Planning/Building/1=_,_.Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET 4. REVIEWING DEPARTMENT: 6.11.Ce. COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997 APPLICANT: Mr. Robert O'Connell, Jr. PROJECT MANAGER: JENNIFER TOTH HENNING PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 LOCATION: 2612 Jones Avenue NE SITE AREA: 2.8 acres I BUILDING AREA(gross): N/A SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable • More Environment Minor Major Information Environment Minor Major information Impacts Impacts Necessary Impacts Impacts Necessary Earth Housing Air _ Aesthetics Water Light/Glare Plants Recreation LandrShoreline Use Utilities Animals Transportation Environmental Health Public Services ./ Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where a Nona!information is needed to properly asse this proposal. Signatur�Director or Authorized Representative Date DEVAPP.DOC Rev.10/93 City,..--.enton Department of Planning/Building/f'+>.__ Works ENVIRONMENTAL & DEVELOPMENT APPLICATION. REVIEW SHEET REVIEWING DEPARTMENT: culActVl16.vx Sew iGei' COMMENTS DUE: NOVEMBER 12, 1997 APPLICATION NO: LUA-97-135,PP,ECF DATE CIRCULATED: OCTOBER 30, 1997. APPLICANT: Mr. Robert O'Connell,Jr. PROJECT MANAGER: JENNIFERiFIATOPl 1 PROJECT TITLE: Plat of Whispering Pines WORK ORDER NO: 78280 . LOCATION: 2612 Jones Avenue NE OCT 2 9 1997 SITE AREA: 2.8 acres I BUILDING AREA(gross): N/Atel„vil lr%.14 i.Ii w1ON SUMMARY OF PROPOSAL: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. A. ENVIRONMENTAL IMPACT(e.g.Non-Code) COMMENTS Element of the probable Probable , More Element of the Probable Probable More Environment Minor Major information Environment Minor Major Information impacts Impacts Necessary impacts Impacts Necessary Earth Housing Air Aesthetics Water LIght/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet • B. POLICY-RELATED COMMENTS RO /116 C. CODE-RELATED COMMENTS . • /kb NC We have reviewed this application with particular attention to those areas In which we have expertise and have identified areas of probable impact or areas where additio I information Is needed to prope assess,this proposal. r �� !r am 7 ,Signe a of Director or h rued Re resentative DEV .DOC Rev.10193 • 0 SO• + wRil 4. NOTICE OF APPLICATION PLANNING/BUILDING/PUBLIC WORKS • DATE: 'OCTOBER 29, 1997 - , ,- , , „ F .,;„�-1� ' ,• ` t r,`, . I;i b , . 7;; . • A Master Application has been filed and accepted with the Development Services Division of the City,of Renton. The `t ' �,_�1'<i ,•- •�_ ,d following briefly describes the application and the necessary Public Approvals. (`I,l 1 'a:' k ,; a. ;:11 `_ x.i ".. +? 1113 PROJECT NUMBER/NAME: LUA-97-135,PP,V,ECF/PLAT OF WHISPERING PINES DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres..A variance.is also. requested In order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. • , The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would,be demolished. for the proposal. . • GENERAL LOCATION: • 2612'Jones Avenue NE . STUDIES REQUIRED/OR AVAILABLE: Geotechnical Engineering Study . Preliminary Engineering Design Report . • Preliminary Storm DrainageTechnical Information Report • PUBLIC APPROVALS: _ • .Environmental Review_. , • Preliminary-Plat Approval ' - '. _ , ' Variance Approval ' : :, - • Building Permit . -- . _.__• I Comments on the above application'must be submitted;In_writing.to-JenriiferToth Henning;,Project Manager, • Development Services Division,.200 Mill'Avenue South,-Renton;WA 98055,.by 5:00 PM on December 8,1997. This . matter is also scheduled for a public hearing on December 16,1997 at 9:00 AM;Council Chambers,Second Floor ' Municipal Building,200 Mill Ave;South.'If you are interested in attending the,hearing,please contact the Development. Services Division,277-5582,to ensure that the hearing has not,been rescheduled.if comments cannot be submitted in writing by the date indicated above,you may still appear at the hearing and present your comments on the proposal before the Hearing Examiner. If you have questions about this proposal,or wish to be made a party of record and • receive additional information by mail,contact Jennifer Toth Henning,Project Manager,at 277-6186. Anyone who submits written comments will automatically become a party of record and will be.notified of any decision on this project. • PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION DATE OF APPLICATION: September 11,1997 , , • ' . NOTICE OF COMPLETE APPLICATION: October 29,1997 DATE OF NOTICE OF APPLICATION: October 29,1997 vM ,_S _ ,�y ___, 7" G E E N Yr •zial 1 ft!..W.1.....-,.--.'NVE . . •-4.-...- 30 ff .j ..r®i 11 '_ _ �' x� - ..A.--. .��. '° .._._• -'''''''N :a�1 �-,�r�;y 1 ��` . .•.... , 1 .4 /m19 z ' I 1i " 6 P urip4: a w'-'y,`(iC '.� , ,53.='6'w01,• v..'.,... .i • `IJ. i it s2. .Y� ..z..-.r,ar..r. !?' ! -tg' `;:,A. .' g Q' I JEI1I■A 1 as*Eo :sr '71,:fi�rt'� — IEi `��..i41k_ �,• .: sp a . j w I - n. al gjaVilk E 0---"_ . ell • 17) GI -T: .i ��. n ik uu watiRf :V m i.iki Y� i� x xc:-• =�rx 9 h v GENMALOT.DOC y :i o c ':' tiif� '.. Ci R8 _ w ' . . .. . . - .. . . . . - ,- .. _,. . - . . . ._ ____ _ ___ _. _ . . •-..- 1 l• --:- 11 111 1 1111111 111 III 1 1 III 1 111 1111 1 1 III 11111 in In 11 1 Illi • 7.• .. .. . .. -- . • . 7--- • • • ...... ...„. r— r IA . .3...09 . 4 allgrAsidiaa-riaromarwe4 CITY OF Development SeRrvEicNTesDNivision N (m . ' 'It.• --....4 • * - , so 4 ‘,' ' • •.477 ir - - 200 Mill Avanue South \ fog/ .,‘: OCT'3 O't. ,i7-140,-4ht---::,--1)---32; Renton,Washington 98055 ''.---'::.._---- . PB METER * ' 1 U.S. POSTAGE, - \ ...1 - 7150564 . . I r 334390 3648'03 • 999999 1 FLEMING JOHWE+GWEN F 1 /41 ' 2422 JONES AVE NE , , 98056 ' , RENTON .WA , . . . . , ,mrs 1,f•., ,,. , r..---...— -'..n....."."— AS ADDRESSED 'ie.., ..._ ' I • UNABLE TO FORWARD N.------::•:;i.-1 -i:,.,. ' ;t1,Stili"J LIETURN TO SEEDER • . 3 • °O O� +1 + • NOTICE OF APPLICATION PLANNING/BUILDING/PUBLIC WORKS • DATE: OCTOBER 29, 1997 A Master Application has been filed and accepted with the Development Services Division of the City of Renton. The l 6 following briefly describes the application and the necessary Public Approvals. ,:# : :-e ,'1 r•' s ' J v Y• PROJECT NUMBER/NAME: LUA-97-135,PP,V,ECF/PLAT OF WHISPERING PINES '17 ,t;,•-";y.` r. , , DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests •'' - '` - preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres..A variance is also requested in order to construct a stommwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. , The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. • GENERAL LOCATION: 2612 Jones Avenue NE STUDIES REQUIRED/OR . AVAILABLE: Geotechnical.Engineering Study . , Preliminary Engineering Design Report Preliminary Storm DrainageTechnical Information Report PUBLIC APPROVALS: Environmental Review , Preliminary Plat Approval . _ Variance Approval ._,,, • • ''Building Permit: • , . ._. Comments on the above application must be submitted in'w1ithig fo Jennifer th Henning,:Project Manager, • Development Services Division,200 Mill Avenue South,Renton,WA 98055,by 5:00 PM on December 8,1997. This . matter is also scheduled for a public hearing on December,l6,1997 at 9:00 AM,,Council Chambers,Second Floor • Municipal Building,200 Mill Ave.South. If you are interested In attending the hearing,please'contact the Development Services Division,277-5582,•to ensure that the hearing has'not been rescheduled. If comments cannot be submitted in writing by the date indicated above,you may still appear at the hearing and present your comments on the proposal before the Hearing Examiner. If you have questions about this proposal,or wish to be made a party of record and • receive additional Information by mail,contact Jennifer Toth Henning,Project Manager,at 277-6186..Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this'project. • PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION . . . DATE OF APPLICATION: September 11,1997 . • •• NOTICE OF COMPLETE APPLICATION:. October 29,1997 DATE OF NOTICE OF APPLICATION: Octo}lber 29,1997 ' ! ` • ,5•,?'100,Vi , W,...i,.....•-•'..::: . . tioi,:11Ligrs,t,\ ."- i 1 I • •_-.fet',.. a .1;,i,e , c aeV,.. • •` ! , ..,...,... -. ,• - • .: , • . L.--,:lic .... , , 4,,,i•F . 'ilkill NCO ,,,71,1n1Piiip ' ; • •:. :.•• . '.'.:t!,•.:•.. . . 0 rim. f eeee�S e. ri `=m i r 317 pl: a0 << Inw • .. &. or a �; gt arOm: 1 f7 m ] gg i GENMALOT.DOC .. . AD 5 ; . VI 1 R8'-• ,.. itu 6 • • • • • 1 . . , „.• . • • j • • 1 • • 1 • 4111111,,d Ii! l 11 11111 II 11 Hi . • ' •• I I!!!!! 1111 111)1 11 III )11 111)) to7, e0_ CITY OF RENTON PM(/) "' co, •----- Development Services Division \‘`P 3 0 t OCT' 0'9 I sz,to : • :2,4.- * 200 Mill Avenue South - .9 . Renton,Washington 98055 , 7150564 U:S..POSTAGE 802620-0100-08 • •1 • 6.HAUDRY. MANSOOR M 400477 2441 MONTERE* AVE NE • . RENTON WA 98056 • "vox 1,66} • NOT Ea 9 V EPIA BCE .,• • NS ADDRESSED ....... fr.,et, ci • • • •. -.. ,.;::•;;;',7•,:i's;,--•,:-•• : .,;•;:.: 4 ;,? . , „.4..•..sii.;i.):inr.:111i?!toi.•! !tijH Tit;:l • . •. • f 1 Liglit + ' /Nirr0 NOTICE OF APPLICATION PLANNING/BUILDING/PUBLIC WORKS DATE: OCTOBER 29, 1997 „ ....._ • , -••.. 1. t': . ' .,‘:1?-.'-i--'-'7•_,:',-;'•J.,rior. t,`,. A Master Application has been filed and accepted with the Development Services Division of the City of Renton. The, following briefly describes the,aPplication and the necessary Public Approvals. ,5. (.1,.. t. ,./.. t ., ::;•<,"'-..,'`li PROJECT NUMBER/NAME: LUA-97-135,PP,V,ECF/PLAT OF WHISPERING PINES DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.L.D.S. Greup, .requeits T' ' '- preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres..A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. . The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. ' . • GENERAL LOCATION: 2612 Jones Avenue NE !II. STUDIES REQUIRED/OR „ , , AVAILABLE: , Geotechnical Engineering Study .,, Preliminary Engineering Design Report Preliminary Storm DrainageTechnical Information Report • • PUBLIC APPROVALS: Envirorimental .Review , - . , Preliminary Plat Approval Variance Approval --'-' ' .: '.,•: .-. : . •1.; I :.: ' = . ,.. .: • ,.,:. 1.-:;,1'.;• ,.,:, ,;,%:',i:..sr ,1-;; .:.: ; • - Building Permit. Comments on the above application must be submitted iin,writing to Jennifer Toth Hennind,Project Manager, • Development Services Division,200 Mill Avenue South;'Renton;WA 98656::45:00 In:Coil:December 8,1997. This matter is also scheduled for a public hearing o'n,peceMber;16,1997 e1.9:0P:AM:Council Chambers,Second Floor Municipal Building,200 Mill Ave,South:'ilf you are interested in attending the hearing,'please contact the Development Services Division;277-5582,to ensure that the hearing has not been rescheduled..If comments Cannot be submitted in writing by the date indicated above;you may Still appear_at the hearing and present your comments on the proposal before the Hearing Examiner. If you have questions about this proposal,or wish to be made a party of record and receive additional Information by mail,contact Jennifer Toth Henning,Project Manager,at 277-6186. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION ID • . , DATE OF APPLICATION: September 11,1997 • NOTICE OF COMPLETE APPLICATION: October 29,1997 \ DATE OF NOTICE OF APPLICATION: October 29,1997 ._ r °0 E E N yf . 5 •...• ......1 p.••• : •rf.:e\ 1 filk• 4"•••1 •• 41, . . i.7. . ,,,1% 411 , t :\ .... , ....„ .... . - i, A.1p 34 • 1i...1;R MI 1 :: • a ita.Iiieb‘:43:;4? \ •••• . . ititik111:401 E/711j: . . . 1 trL77 -'.i 4.' - ''., : 1 :. . .. ,::, ' ' • ' ..:`!'f 10. ' ... /a• !•,-.11170 ,_ _ 7,..--t ,-.t..t..,,.„:..: ;:-...: .7.1..„: ,...,..,...,„,..• :v ,,t,.'4' rmic u .• 'tp .p.0.,.' RC -'': ''l°I I ftKe PAM 1 M.I. ".*“.... r'73 ,. , „.. i a, , 'w11011alla , •, , $7 ;.."..'"...7 :. :,:,,.;.,-,,.,,.-,:_lc.,... . . . _, ....• . ,;..,.,,,,,,;•:titi.,:c,„_ -1'4.4 !,' ,.2,' . •.`c. IREEMWM:gais.r.-•-rimpeARIIIMEMti-77-,w7;:.._ • ,• Rt„ 1.'--"'^;'.:`.'-'1--':.'Ot:•r•-,U:76. .::.i!trifiall il • ,;•3_77 i ElEtIMIL17.= 8 ' . I• ,;.' • . -:, •. .. ., • ' :l, ,1-'''7 -ft ..19$ la 1114r it :I, — *I . -° '.: ,- i. - , -Iti iX V latt ,R----------,.--* -.. r.....ier- - f? ja .1111,.• ......-. a , 7 3)- • mow Ilk ILO _•••:•ti a ••••". ,. L ...•acmi '• #... "..5 M'O...;'. " 1 2 I I id'OD'— ., a .,1_,,, GENMALOT .1„. .DOC :!!' ••-•--1 •,.13 i, !, ___Ixt!. ",,;:i......y,0 ; i 4 • . .. . , . • . .. • c,• • , .. • .,,., , • .".•'1-.:I f., '.'... •, ';, •-•....:,',f,.' '-v•',..,.. ,'..,. ',:,!,, ;•;"j-....,...,..'.; • • . . . , . . . • F —• • • _ _ •— —: . • , 1111 11 11 11111 Hi! I it Ilil I 1 i 1 1)) Mit 1 •,.. 1 ;II.:: !! !! !h i! Iii-: I !: !:l !!: ! ! ! ! !!I !III! Ali! . . f - IIP . ., • . . 1 .. . ., . . . . . , . , : :.,'.. •„.• . • . . .. . • . '7;,:::;:7"- • • .-Vc:',"• •. , • -• ..... . . . ...„ ,, . • . • • 1_b. 4, •,,,....,;,..... .--oviimmt----7 -7,4, „.-„,, . 7..."4"",,,F0FA ::,,,,,r... ,1,itmsesnemear- 1... .., pNi ' ....,.;." 4,71,,,,, -- - . - - .... . , T. .....,.,...., . r- CITY OF RENTON s-") — 3 7 13 ) ' OCA 9 ', . ,-,e, t% Development Services Division 0' 7 •••. ..-0:30' • - . -• ' -—,,_• ___..i:F.,," \ 200 Mill Avenue South ......, - ,. •i • * • • *pima 0 Renton,Washington 98055 , . / \--... . 7150544 (t..s. POSTAGE . • .80262070070-04 ., • `. i TALLaAN- STFVEN W ' 2442 MONTFREY AVE_NF. 0 3994 f RENTON WA' , . TALL442 980562029 1996 18 11/03/97 FORWARD TIME EXP RTN TO SEND TALLMAN'STEVEN W : ' NO T DE:I VERA r-:,I;E:•:.-7-7-,-;.:7.-----...„ ...;. , . •, ...:.(„,•‘-'024,f%\ -4-7i,- • 8113 129TH PL SE ' v I AS ADDRESSED '7,-"... .„: -..1, 1, • ••.1661 N NEWCASTLE WA 98056-1763 , / -' .:,: „,„ . 11111r - UNABLEI 10 -F-0 RW A R L. ,..— 1: -,..i:-. . .. . .. -.,1 Alk 1. ! RETURN TO WRITER ...614!'"t'r - .,,,Nfi., 1. ( ii ii ii Hi ill )1 ii iii .. r r : CITA_ 3F. RENTON : Planning/Building/Public Works Department , Jesse Tanner,Mayor' ' • Gregg Zimmerman P.E.,Administrator • October 29, 1997. - RECEIVED NOV . 4 '97 OFF CE• f Hi SUPERINTENDEI+' • Superintendent's Office Renton School District#403 , ; 435 Main Avenue South • 0 6 Renton, WA 98055 �cL :. , . Op'VtA, SUBJECT: PLAT OF WHISPERING.PINES - 9 �444/ •Project No. LUA-97-135,PP,V,ECF • - 4F The City of Renton Development Services Division has received an application fora 10-lot.plat to be located on a vacant 2.8 acre site zoned R-8, single.family residential. The property is located in the • ' Kennydale area, at 2612 Jones Avenue NE. • In order to process this application,:the-Development Services,Division•heeds to know which Renton .• schools would be attended by'children living in residences at the location indicated:above'. Would you please fill•in'the.appropriate schools on the-list below and return this,letter to the Development Services Division, City of Renton, 200 Mill.Avenue South, Renton, Washington 98055. . Elementary School: Kennydale.- : • • Middle School: M-KTI i gl1•1- 'High School: . Renton (12.th graders), Hazen. (9 th' thru ll th) • ' • - Will the schools you have indicated`be.able to handle the impact of the additional'students estimated to come from the proposed development? Yes . X No Any Comments: This property is in:a transitional 'area for,high.;school. If it is lived in for the 1998/99' school year:,: 9th-1'lth graders would go to Hazen and 12th graders would go to Renton.' - -. •' • Thank you for providing this important,information. Sincerely, = • Jennifer Toth Henning • Project Manager :..' _ LUA-97-135,PP,V,ECF 200 Mill Avenue South- Renton, Washington 98055 This paper contains 5b%'recycled material,20%post consumer. . o CITY OF RENTON . , 1 r� Planning/Building/Public Works •�, v 'ig g y �w.� 82,r4"� • ^",;Mill Avenue South -Renton,Washington 98055 ----- Avo b ca OM301i re/g.a1 = 0 2 9 5 . - ' ) . (bP:4•#C'-- IC:\ `�, �� -cQ qT TPo ye 1IZ L� QF k4 fie@ sq0G8E73n„6 -F,MA ., .9 t 60\c� ee 813210=0050=0I . SHOWCASE OMES INC. 55 999 • Ids , ,&RatgiDA,M tMA E lfi t.t a lit I • •::•J . .� - ililill! i! in; !i!a I. . aaaa t. s .: OATY O ff ' NOTICE OF APPLICATION PLANNING/BUILDING/PUBLIC WORKS ' DATE: OCTOBER 29, 1997 - A Master Application has been filed and accepted with the Development Services Division of the City of Renton. The following briefly describes the application and the necessary Public Approvals. PROJECT NUMBER/NAME: LUA-97-135,PP,V,ECF/PLAT OF WHISPERING PINES ti - DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in-order to&instruct a-stormwater flow spreader-at the toe of the steep slope adjacent to a-Category II"wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. GENERAL LOCATION: 2612 Jones Avenue NE STUDIES REQUIRED/OR AVAILABLE: Geotechnical Engineering.Study , Preliminary Engineering Design Report. ' Preliminary Storm DrainageTechnical Information Report PUBLIC APPROVALS: =•!. +•!I'Environmental`Review-'', ` :,r: - •;,I Preliminary•Plat Approval±; -'I ; _ , ``+ :•• Variance Approvat�_ :,,,.�•i—....,, . .. : t Building Permit d Comments on the above application:must be:submitted'in,wnting_to Jennifer Toth Henning,Project Manager, ' Development Services Division ;200 Mill• `Avenue'South,Renton,WA 98055;by,.5:00 PM on December 8,1997. This matter is also scheduled fora public hearing oil'December 16;1997 et-9;00 AM;;Corincii-Chambers,Second Floor Municipal Building,200 Mill Ave..South. If you are interested in attending the hearing,please contact the Development Services Division,277-5582,to ensure that the hearing has not been rescheduled. If comments cannot be submitted in writing by the date Indicated above,you may still appear at the hearing and present your comments on the proposal before the Hearing Examiner. If you have questions about this proposal,or wish to be made a party of record and receive additional information by mail,contact Jennifer Toth Henning,Project Manager,at 277-6186. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. IPLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION DATE OF APPLICATION: September 11,1997 NOTICE OF.COMPLETE APPLICATION: October 29,1997 DATE OF NOTICE OF APPLICATION: October 29,1997 -- s i, mx •_ _.__. i• 0 - E E N y{ , •••\ • Act: te, I • i ; .;•. ......I -1•Ntoll k.ip •1 lea d]I I Ae �.:•... ,_.1. ..{. •36¢ _ �5.� ill liii 1331■A�'..:"E• :�,'t�. Mom: �OM t�AL�v"n._ zoo `"' "'� /I}},x� '� \ r l .W' Cl call 2f, fit.. !w :,�::':.ID '�Y - �I t I i �. pli: CL� tr •.� h 9l PEi ak5 4i 2 ©j ge M. -I ! 12 YC•_• t E.iM S j__ �'a . " r:!1'Vr' 4",w. :_._ - :6 = ' q , a GENMALOT.DOC - oRS . �?� r ,= ya • • • .. • • DEVELOPMENT SERVICES D1V1SON LIST OF SURROUNDING PROPERTY OWNERS • PR OJ ECT NAME:k)(Sr(720.k.ill:Si PG/116" APPLICATION NO: LU7N 91 - 135 t)P, The following is a list of property owners within 300 feet of the subject site. The Development Services Division will notify these individuals of the proposed development. NAME• ADDRESS ASSESSOR'S PARCEL NUMBER Jee • • • • • .,.c\31-1e r,.• • do... . • • , „. - VIUZZAO,Yibtl. • • • • . , • • . . .• , , • •, . • _.: •-- ' ' - • , , • . ..,. • TtE.:ORMED -• . . • ••.. illYARAM • •• SER711, irl.f:itizgli.;.45.4a.t.attach. additional sheets, if necessary) IDEVELOPmEN.1 PLANNING CITY OF RENTON 'Iv • , (Continued) • • • NAME ADDRESS ASSESSOR'S PARCEL NUMBER • • • II Applicant Certification I, �G(7dtZF Li,) O 2 , hereby certify that the'above list(s) of adjacent property (Print Name) owners and their addresses were obtained from: O City of Renton Technical Services Records O Title Company Records AKing County Assessors Records Signed Date ./l;2/ 7,=,,,.,,,E,;;, (Applicant) NOTARY �"'..e�-6,•p . � • • ATTESTED: bscribed and sworn before me, a Notary Public, i and for=the aTe or vVes ntton, residi t on the // day of .�o Signed RGAR J. PULLA�R ss'A (Nota y ublic) • COMMISSION EXPIRES 6I91O8 • ::[:i.::iF%iF:iF:".;{{:::::::'.;`:':>2:;'o "'2;:;:::':::>;:;. ;':;;:::;:9F?ii::lF:k::::2::::Y' :::::2: ::£i ;:::::>:::::::#:'•:::: :::::::?::2::::':?::: :::: ::::: • v • `' :>�:» »�� "<'� ��<<��'�:.�>�`'� >�?�?''> ��< '��`<��>�`r��:s;>''.s'`;``:`:>f`�:�.:'::`:��•�'�a`'''``os'�'"i3 a e o .. er rrial ed.. F.i+I'v:vi:•.'•i;iivi:•iii}:i4ii:ii+:�:6ii}}}}}}}}}}y}}}}}}}}};iiiii:4ii:ti•i}iii:.. q,>'::::::Ci:':i v!i:ii:i:::i iiiiiii::;f!iv:'i:iii;;i<•iii:v:;:i;:;;+ii:ii::v}iv:::i::i::i i>:;siii:istii:iS::vjj:Li:':4i:::;iiiii::iiiiiiiii:i::i:::i+:i::::}:{:}:Y::}:::i::ivii iiiiiiii:L4ijiji}iiiii:iii:iY:'ii iiiiii ii:}i:';::ii::i:::!fv:;i::::ivii;:;l,v:::;::::::i:'(:jS?;: ?:: 1,4 Q' .;•.::.......... :: i::•:i:::•::Si::>::i::i<�•:::::::: iii:::::::•::i:i•;:>i::i:i;::i:;i:::>;;:iii::ii�:;::::.'•i::i::iiiiiii:"•:i:;;is:::::::::::::i':ii::;::::::::;:•:ii'�:::;:::::i:::i::i::i:>':'::::i i;<:::i::i:>:.:%;•:;>'::::i::;:.`;>:::::::::::::i::i::;::i::;;:';:::� • '; A:. iE :17.a. '°k scribe. <:and:: .wo:n:::: . .fore::::me:<: :::N:o. a:..::.:P b49::6>: <:: rr »for`:: DRi$ a >of Washin klili Ng ,A ��•�'..��.'!�:?•.'!•:�•:••:,•:•:•:•:•:•:{ti4:{ti•i:?4::ti•i:•iiii?i}is��iiii}isihii}ii:i4:4ii:•i}iii}ii:4}iiiiii:^:•iiii:4i:4ii:•ii:�ii:4:4i:4}ii}iiiiiiii??iiiii}??i}i}i'!�iiiii}iY^ii'� �� iiii::?::':`'::;:}?;:�:^:;is�$i:;{isj,:;:>�':`•.'•�.<}$iiiiiiJiiir';:;:..>:ijiiiii}iiiiii:i`�.'<'<�i iiii ii:>iii i}:i{iii:'iiiii:'iiiiii iiiiiiiiii::":;:S�:y;:�:;is�:�:�:>{::}:;}YiiiiiiiiiiiiiXi+iitiiiiii iii:?::!:ii?::i:'i$::iii:�i:i��:'v}:ii?>vS:?v:;:Sv:: list ro .doc tarY'R i1L T N kikiVICHEFE P e REV 07/95 LION EXPIRES 6/29/99 2 . . . . . „ . , . . . , „ , .... ..),, ,,c. . ›.(*. J.c.. .v. v...t.v*x.cc***********%. Cie 1 '* ' BATCH NUMBER: . HL l'• COMMENT!. • • 1- ' ' H CUSTOMER. NAME NANCY BENNETT • ,*(,9 ,-,tsi-3 ' . McZcZon-V.cc,<Zon-f.WrCoMtontcinCZ<cf,MIncto4*),M,- e4<gc-T-40. 1.4k—C . 229650-0035-07 1 :1 229650-0036-06 . . - 1 KODIS HARRY A 202893 GORDON GLEN G & WILMA JEAN 692214 4 . 1 2619 JONES AVE NE i. ?623 JONES AVE NE / ' ' 1RENTON WA 98056 :;'' RENTON WA S 98056 , . 417'.4' '''' ' '---'7---'-'—--- -----'-------7--'77-7 1 '..!... '1 ST__-_,, -...---.--"—_--- =-r....77 ----,_-=',..1-_-L` %AI 1 1 ' ', 229650-0037-05 1 229650-0038-04 CANNON ALLEN 519999 , KINDLE DONNA+EMMETT 610522 !- 2607 JONES AVE NE 41924 236TH AVE SE RENTON WA 98056 ENUMCLAW WA 98022 ' 229650-0040-00 ; 229650-0041-09 GUILLEN GREG+NADINE 189999 MCCULLOUGH ROBERT P 619999 , i 2535 JONES AVE NE 2523 JONES AVE NE RENTON' WA V 98056 ' RENTON WA 98056 ' 229650-0045-05V . V ' 229650-0046-04 MCCULLOUGH ROBERT P 569999 ' ZEVART F L 2517 JONES AVE NE 2509 JONES AV NE RENTON WA 98056 RENTON WA 98055 . - 334390-2062-02 H 334390-2063-01 = HORA EARL O+ANNETTE 289999 ANDERSON JON P 539999 2621 ABERDEEN AVE NE 2623 ABERDEEN AVE NE RENTON WA 98056 RENTON WA 93056 334390-2120-02 V , 334390-2122-00 AUDETTE P 2N0382 H LUCAS CHILDRENS TRUST 149999 8605 135TH PL SW' H 225 108TH AVE NE ST7. 310 EDMONDS WA 98020 H BELLEVUE WA 98004 334390-2124-08 I. 334390-2162-01 — THE ZIMMER TRUST 349999 LUCAS GREGORY O+CYNTHIA M 969999 ' 2530 156TH AVE SE , , 1 2009 NE 27TH ST HI BELLEVUE WA 98008 1"1 RENTON WA ' 98056 gil V . - : — 1 334390-2180-09 H 334390-2181-08 .._, NEWTON LEE 701392 H WELLS ROBERT & JOAN 704956 1901 NE 27TH ST ' 1 18120 NE 102ND CT . RENTON WA 93056 . 1 REDMOND WA 98052 ---:.-_ •i 334390-2184-05 334390-2190-07 ' BOURDOISEAU ALAIN 261780 . KOURA KENSO '.- ,0676 1915 NE 27TH . 1909 NE 27TH PL . RENTON WA 98056 ' i RENTON 'WA , , , 93055 ,-. ., 334390-2240-07 . 334390-2280-08 =, FROST W C 0676 FREY JAMES 0 JR 960790 1924 NE 27TH ST V 2425 MONTEREY AVE NE ,„„ Qpicrimi 1.1 c't PrInc nLI-kaTnm 1/A 001 -.. : gstei NOENNETT NANCY . 6N0626 V _ NEWBOLD T-.^M MORRIS+MARLENE 7699992612 JONES AVE NE . 4.',1,-1 2622 JOP AVE NE . . -() .,i, RENTON WA . 98056 01 RENTON- WA - 98056, • , APP1. ' a • . . - - -;.' '7.Y.-77 7--;---77 '1Z-*.;r:"-:_:2.t•...'''— ,L....,-,.•' ,_r---Fi_e. :7,'S. TZ,:.--,:...2.!....1..,.....1•:-..==7-LL?:::-t... S,5';i:zr-Ll_i'i::,a-1:.'2.1_Lz. ::IL,'_.; _:: IC ji ' 334390-2900-08 F,;J. 3343902905-03 '44 WELLS- ROBERT & JOAN 409800 [I:.: WELLS ROBERT C JOAN 409800 NA 18120 NE 102ND CT • 18120 NE 102ND CT : - . ;-N] REDMOND WA 98052 '"1 . REDMOND WA • 98052 w.1 ilk.1 . A -J 334390-2910-06 11 334390-3040-07 NI WELLS ROBERT C JOAN 41)9800 ' LOWRY MICHAEL- & MARY 301678 N 18120 NE 102ND CT EXECUTIVE MANSION ,..-, REDMOND WA - 98052 : OLYMPIA WA 98501 ,--,' 334390-3041-06 H- 334390-3042-05 . [II - n: WELLS ROBERT L C0879 ri WALKER RALPH E 100765 - 1725 NE 28TH ST ,.n 1 2732 JONES AVE NE , RENTON WA mg: . 98055 ;'N RENTON WA ' PI 98056 .,• . 334390-3043-04: , H 334390-3045-02 CD OILS KATHERINE M 899999 - -WILLIAMS ANNIE . 463331 • 2712. jONES NE • , 1809 NE 27TH ST . RENTON WA 98056 ' I RENTON WA 98056 ,-; . -- - • • - . . . . . . _1 :.- - ;.;., 334390-3046-01 1 - 334390-3080-08 'e- LARSON CARL L C NANCY I MOORE LLOYD E+JOANNE 579999 1733 NE 26TH . 1806 NE 27TH ST RENTON WA 98055 ' RENTON WA 98056 . . - . - • - • - - • , • . _ . . . & 334390-3061-07. . . 334390-3082-06 NHOGGARD PHIL 241472 ' ST CLAIR DAVID A+JUNE R 989999 . - 1916 NE 27TH . , 1832 NE 27TH ST -. j RENTON WA 98056 - ; RENTON WA 98056 la . ,-„,., •. . ___________ .. . . _ . . . .. •• - • • 334390-3063-05 . . 334390-3084-04 • - ASMUS DARRYL W+ROBINA 674532 H PHAM . JAMES D+OZUNG Q 019999 - 1810 - NE 27TH ST . 1 1814- NE .27TH ' RENTON WA • 98056 ; RENTON NA . • 98056 471 . . . • _ _ - 334390-3638-05 . 334390-3639-04 . IF. - .SCOTT JOHN- C+JOAN T 339999 OWENS -CHARLES 351322_ . 2532 JONES AVE NE ' . 2518 - jONES AVE NE - .- . ' RENTON WA 98056 ' RENTON: WA 98056 el H • . . *.) 334390-3641-00 1 334390-3642-09 !1 FRANCIS VERNON N SWEEN -JAMES- F R0578 1 1 %:24 JONES AVE NE i • 2514 JONES AVE NE . - • RENTON WA 98055 RENTON . WA 98055 •,:,".. - .„,,,,,_,,,,,,,==-,!:.,_===.7.7,==a-,-..;.:•7.7f,:::., ..._ __... .... . _. . ,. - - .:..--; r+k:si • 1 334390-3645-06 3343903648-03 . 4 DONOFRIO FRANK E : . FLEMING JOHN E+GWEN F 999999 44 2508 JONES AVE NE 2422 JONES AVE NE RENTON WA 98055 RENTON WA 98056 uvOG0-01/4,00-04 i'l '; . TALLMAN STEVEN W 039999 i,' BATES Ai.`'-79T T C0979 . 2.442 MONTEREY AVE NE "� 2448 MDl -REY AVE NE ,� . ' RENTON RENTON WA . 98056 I' ' RENTON WA :• 98055 802620-0090-00 802620-0100-08 STRAND ANDREW G 229999 CHAUDRY MANSOOR M 400477 14504 129TH AVE NE 2441 MONTEREY AVE NE oi KIRKLAND RA 98034 RENTON WA 98056 - -_:.. 802620-0110-06 � :-_--.__:___.._.,.- $, H1 813210-0050-01 , HAGER STEPHEN M+JANE I 879999 SHOWCASE HOMES INC 559999 ' 11121 NE 97TH 900 MERIDIAN AVE E 019-323 . . KIRKLAND WA 98033 PUYALLUP WA 98371 . . j813210-0060-09 813210-0070-07 1 GRUENING MICHELLE LARA4-PETE502024 SHOWCASE HOMES INC 559999 .I 1807 NE 25TH PL * ,* 900 MERIDIAN AVE E 419-323 ;-1,j RENTON WA 98056 PUYALLUP WA 98371 H813210-0030-05 , 813210-0160-08 ;i SHOWCASE HOMES INC 559999 : GLAUSER STEVEN D+TAMARA L 559999 , 900 MERIDIAN AVE ' E i 19-323 . H 24001 SE BLACK NUGGET ROAD ,_;Y PUYALLUP WA 98371 . , L ISSAQUAH WA 98027 1 813210-0170-06 813210-0180-04 I KIRKWOOD COMPANY INC 55Z025 I SCHOOLEY DUANE H JR 509999 13301 180TH AVENUE NE � 2514 iiENNEWICK PL NE _ REDMOND WA 98052 RENTON WA * 98178 Y. • ,i) 813210-0190-02 , 813210-0200-00 , , LARSON THOMAS J+SHELLY L 509999 KIRKWOOD CO INC 55Z025 1832 NE 25TH PL H 13301 180TH AVENUE NE ;Af RENTON .WA 98056 REDMOND WA 98052 i 813• 210-0220-06 813210-0230-04 JOHNSTON CONTRACTORS CORP 549800 KIRKWOOD COMPANY . 619999 1209 114TH SE 0218 13301 180TH AVE NE .J BELLEVUE WA 98004 REDMOND WA 98053 tE'. 813210-0240-02 . 813210-0250-09 j'= _ _ • GLAUSER STEVEN D+TANARA L 559999 • SHOWCASE HOMES INC 559999 24001 SE BLACK NUGGET ROAD • 900 MERIDIAN E 019-323 11 ISSAQUAH WA 98027 ! ; PUYALLUP WA 98371 Q; 813210-0260-07 : 813210-0270-05 -_ SHOWCASE HOMES INC 559999 HUFF JOEL T+ESSLEY DEANNE L579999 900 MERIDIAN AVE -E 019-323 ! , 2421 KENNEWICK AVE NE • PUYALLUP WA 98371 H RENTON -WA • 93056 •it., 813210-0310-07 884800-0010-07 JOHNSTON CONTRACTORS CORP 549800 KAISER DAVE P+MECHAM,MARK 059999 1209 114TH SE 0218 2717 JONES AVE NE ,r BELLEVUE WA 98004 RENTON WA 93056 ' • < <,u-ravu—uuct)—JD , ' 884800-00�2-03' _. L:�� ''''G.IST GEORGE W - • 469999 ld MI.LLER ' )D A+SARAN J • 209999 ';�' 1 1626 NE 27TH CT f.;,, 'r:k1624 NE z7T1� CT RENTON WA 98056 ,, ' RENTON WA 98056 „1 :1 1, 884800-0030-03 ' 884800-0040-01 - - ---- 4# :.,,,,+,.'H .G I ST GEORGE W • 0878 !' i SMITH DAV'I D• A 391855 .airy.. t� 1630 NE 27TH CT ,,;,,;, 1626 NE 27TH CT * 'd RENTON Wei RENTON W A ,ups 98055 98055 l 884800-0050-08 I 884800-0060-06 .� DAHLMAN . JOHN A+RACHEL K 429999 �'�" � SCHELL RQNALD L 801276 1627 NE 27TH COURT ! 1621 NE 27TH COURT �n. KENT WA 98056 RENTON• WA • 98055 884800-0070-04 ! i 884800-0080—.02 • "' PORTE SANDRA M+TODD P 009999 • 1 URCH ' DOLORES L 451123 1615 NE 27TH CT ( PO BOX 3043 • -RENTON WA 98056 RENTON WA 98056 • • • } a t� • . • • • irC ; • • • , ' . • V . • • • • • J +''�' , ,. • —4' .. .• �''yi�� .. r.i..«•'1''11'ti., .. - J•y. n.. s:c ':�` „'i :4'1'�;�iliiSi:Rf:'=:;nr' R '7.I' ,••.; • • '. , • oaf • • • - • i%`51 ? :re i:tl-:,1:4nk:.i. S'E'�-y.4..a.tar.e--v?3i:A.m— ''.. r�A 3u•• +a fi' ^t r �"' a•,4 C"Ss� »l ,s:+s �4�,N.fds t:7. i71.. 'u;% . ti 'r •* `�Rr •..,^ , . dr.;q,Fs, «� . c tri'k S Y v "'�'.. r rv�e f , K �liNrto� NOTICE OF APPLICATION ' i a PLANNING/BUILDING/PUBLIC WORKS _ DATE: OCTOBER 29,1997 • • A Master Application has been filed and accepted with the Development Services Division of the City of Renton.The following briefly describes the application end the necessary Public Approvals. 1 PROJECT NUMBERINAME: LUA-97.135,PP,V,ECF!PLAT OF WHISPERING PINES , DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.LD:S. Group, requests 1 ' preliminary plat approval end environmental review for the development of a 10-lot plat on 2.8 acres.A variance Is also requested In order to construct a starmwaler flow spreader at the lee of the sleep slope adjacent to a Category II wetland. The new lots would range In size from 5,750 square feet to 13,242 square feet.An existing home would be demolished ,I for the proposal. GENERAL LOCATION: 2812 Jones Avenue NE ll STUDIES REQUIRED/OR l AVAILABLE: Geolechnlcal Engineering Study 1 Preliminary Engineering Design Report • Preliminary Storm DralnageTechnical Information Report PUBLIC APPROVALS: • Preliminary Environmental Review evt i vat I I . Variance Approval • Building Permit I Comments on the above application must be submitted In writing to Jennifer Toth Henning,Project Manager. IDevelo , maser is also scheduled for a publiment Services Division, c ic hearing onDecemb r 10,1987 of 9:00 AM,Council Chambers,Second Finer0 Mill Avenue South,Renton,WA 98055,by 5:00 PM on December 8,1997. Municipal Building,200 Mill Ave.South.If you are Interested In attending the hearing,please contact the Development I - Services Division,277.5582,to ensure that the hearing has not been rescheduled.If comments cannot be submitted In writing by the date Indicated above,you may still appear at the bearing and present your comments on the proposal before the Hearing Examiner.II you have questions about this proposal,or wish to be made a party of record and receive additional Information by mail,contact Jennifer Toth Henning,Project Manager,at 277-0188.Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. !PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION I . DATE OF APPLICATION: September 11,1897 . NOTICE OF COMPLETE APPLICATION: October29,1997 , a • DATE OF NOTICE OF APPLICATION:. October29,1997 r• w' t r x q • • LiI }` sex r �S 1=ure r f = ;' R ,�; of IIcO+rutor.00c m R6 • . CERTIFICATION I, • AKIX/A/Ah / l , hereby certify that 3 copies of the above document were posted by me in . conspicuous places on or nearby the described property on • . ©r 6fre �0t rrt? Signed: : •0t� ',,,, STATE OF WASHINGTON ) - ) SS -*'' GOUT , flF KING ) V. ( 1 % .•'-'it ' • i ic.€4° 'i-. al 1 know or have satisfactory evidence that m AT T VY1 i »h: E e * `'-i d is instrument and acknowledged it to be his/her/their free and voluntary act for the USES Le Aar, k:Arp.orses mentioned in the instrument. . •s • , ,F yt Pk. • p U- y, i�i7 ` CZ - • Notary Pub 'c in an for the Stal Washington Notary (Prin1). YN KAMCHEFF - My appoinlme&sigt.,t pisEsTl2M crlrARY rv.e OrVY o it + . . 41N'lvr cv NOTICE OF APPLICATION PLANNING/BUILDING/PUBLIC WORKS DATE: OCTOBER 29, 1997 A Master Application has been filed and accepted with the Development Services Division of the City of Renton. The following briefly describes the application and the necessary Public Approvals. PROJECT NUMBER/NAME: LUA-97-135,PP,V,ECF/PLAT OF WHISPERING PINES DESCRIPTION: The applicant, Mr. Robert O'Connell of The O.L.D.S. Group, requests preliminary plat approval and environmental review for the development of a 10-lot plat on 2.8 acres. A variance is also requested in order to construct a stormwater flow spreader at the toe of the steep slope adjacent to a Category II wetland. The new lots would range in size from 5,750 square feet to 13,242 square feet. An existing home would be demolished for the proposal. • GENERAL LOCATION: 2612 Jones Avenue NE STUDIES REQUIRED/OR AVAILABLE: Geotechnical Engineering Study Preliminary Engineering Design Report • Preliminary Storm DrainageTechnical Information Report PUBLIC APPROVALS: Environmental Review Preliminary Plat Approval Variance.Approval Building Permit Comments on the above application must be submitted in writing to Jennifer Toth Henning,Project Manager, Development Services Division,200 Mill Avenue South,Renton,WA 98055,by 5:00 PM on December 8,1997. This matter is also scheduled for a public hearing on December 16,1997 at 9:00 AM,Council Chambers,Second Floor Municipal Building,200 Mill Ave.South. If you are interested in attending the hearing,please contact the Development Services Division,277-5582,to ensure that the hearing has not been rescheduled. If comments cannot be submitted in writing by the date indicated above,you may still appear at the hearing and present your comments on the proposal before the Hearing Examiner. If you have questions about this proposal,or wish to be made a party of record and receive additional information by mail,contact Jennifer Toth Henning,Project Manager,at 277-6186. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. PLEASE INCLUDE THE PROJECT NUMBER WHEN.CALLING FOR PROPER FILE IDENTIFICATION DATE OF APPLICATION: September 11,1997 NOTICE OF COMPLETE APPLICATION: October 29,1997 DATE OF NOTICE OF APPLICATION: October 29,1997 94 G E E N Yr 1 t •\ „,,. 4, 42 I 4` • I -l2Ly�4+i9 - /rtip_j.:ii3 �xv8� e Ilii �;JI ? a oq �, ��; �f.,, '� •gyp Pow:.. kE .RIi m c irT � 9SZFt law ,',,�,t v e-e al C Et11�`9 zz�ei7r Y -2.3470 _.41--mr wignipaik ,ftEmanliti 0.+I ; 'rf 2 •Noma 7 SWIM i>-.e�'3:9��' 1m16 1 .. p' Zia"Ijvr fb ® 4 Ek of amG._.. 2C zaz � GENMALOT.DOC , Re---L. �'' � Wi s+' � JI ;ra • - c ' : , - -CIT1 )F RENTON . ,` Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator • - . . . October 30, 1997 - , : . . _ Mr. Robert O'Connell, Jr. ,-. " 4620-200th-Street SW, Suite F ' ' ' • _ : • : Lynnwood, WA 98036 .. -:SUBJECT: -'Plat of Whispering"Pinee :"'.=;:- - ' . - - : ,Project No. LUA-97-135,PP,ECF,V °;".. - ' Dear Mr. O'Connell: ° . '^ : - •• " - ' =` The,Development:,Planning_Section'of,the City.of Renton'-has determined that the : •'- . `. • `'-subject application is,`complete according to:;submittal requirements ;and, therefore,,is ` °accepted for review ,,r - :rho.:i�:'=•c�;-'t-'�!•s _ It;is'tentativel scheduled'for.considerationiby-tile-Environmental Review Comrnittee'on• _ y.. ';:November :18,".'1997. 'Prior to:,that 'reviiew,'.:you will be notified 'if:any- additional" -.information is required to continue:processing your application. .`: -- -' •'•:.The date•of Tuesday, +December`16, 1997, at 9:00AM,-has been'set for a public hearing ': ':.' 'to review the above-referenced matter. '.The hearing,-beforeMr.•.Fred Kaufman, Renton -:•'+Hearing Examiner,will be:held in the Council Chambers-onthe second floor of City Hall, ;- . :.Renton, Washington. The applicant or representative(s)'of the applicant is required to be present,at the public hearing.':,A,copy of the;staff report will be mailed to,w . you one ;•: . , - -„Week before the. hearing Please contact me, at (425) 277-6186, if you have any questions.' , _ , i Sincerely,' `:_ } Jennifer Toth Henning Project Manager cc:. •:` Ms. Nancy Bennett/Property Owner _ - •-` 200 Mill,Avenue,South;-Renton-'Washin ton 98055. / ,,, ,'.;: -, : :i - :: This paper contains 50%:recycled material,20%post consumer'• ' • - •- - ' , - TEE 00 z..421 0 Gi®u O'CONNELL LAND DEVELOPMENT SERVICES 4620- 200th St. S.W., Suite F • Lynnwood, WA 98036 Office: 425-712-9688 • Fax: 425-712-9832 BNNT-01-WSPN Ms. Jennifer Toth Henning October 10, 1997 Senior Planner City of Renton Development Services 200 Mill Avenue South Renton, WA 98055 Re: PLAT OF WHISPERING PINES (LUA-07-135,PP,ECF) Variance Request-City Code Section 4-9 (4-31-9.5.D) Dear Ms. Henning: When we proposed the solution of placing the flow spreader at the toe of the steep slope adjacent to the wetlands during our Pre-Application Conference of February 13, 1997 and received subsequent city staff support for our proposal no one mentioned the need for a variance or we would have prepared one with the initial submittal. This response has been prepared in accordance with City Code Section 4-31-19.F, as amended, and in accordance with directions from the City of Renton Development Services Division public information handout, Submittal Requirements for Variances,Item#11. THE ISSUE: Site Description - The proposed Plat of Whispering Pines is a 2.79 acre parcel in the Kennydale area of the City of Renton. The site drains approximately 1.5 acres of pasture area into a 0.59 acre Category II wetland area in the northeast corner of the parcel. The wetlands area is surrounded by banks with 15% to 65% slopes rising to the Whispering Pines development area. The proposed wetland buffer of 50 feet will include the steep slopes, from toe to top, around the wetlands. Proposed Design - The Whispering Pines storm water mitigation system has been designed to collect, convey, detain and treat storm waters in accordance with City of Renton Chapter 22, Surface Water Drainage Ordinance and city staff administrative approvals. Core Requirement No. 1 of the ordinance requires that storm waters be discharged at point of natural discharge, which in this case is the Category II wetlands in the northeast corner. The proposed design would provide storm water quantity and quality mitigation with a wetvault designed in accordance with the King County Surface Water Design Manual. We proposed to discharge the treated storm water through a flow dispersion facility at the toe of the steep slopes in the buffer adjacent to the wetlands. This would also require crossing the buffer area with a conveyance pipe. As this is a preliminary submittal we did not include detailed trenching and mitigation requirements for the pipe crossing or the construction of the flow dispersion facility. The City of Renton would require this detail in the preparation of final construction/permit doc" IV D DEVELOPMENT PL4NNING CITY OF REQNTON The Conflict - The construction of storm water discharge pipe from the storm detention wetvault across a proposed wetland buffer to the wetland edge where a flow spreader would be installed to discharge treated storm water violates the language of City Code Section 4-9, Tree Removal and Land Clearing, as quoted in your letter of September 26, 1997. VARIANCE JUSTIFICATION: A. Other Ordinances - When we began this application City of Renton Ordinance No. 4346, an Interim Ordinance, was the applicable language for City Code Chapter 32, Wetlands Management. Section 4-32-4.A.9 and 4-32-4.B.2 together allow the use of buffers and wetlands areas for storm water discharges and storm water dispersion facilities as long as they meet the requirements and tests of City Code Chapter 22, the Surface Water Drainage Ordinance. As far as we know this ordinance is still in effect and according to city staff within surface water engineering the proposed final ordinance also adopts these uses. We feel that the acceptance of theses uses by Chapter 32 is justification in and of itself for the proposed design and no variance is required. B. Undue Hardship and Special Circumstances - We had discussed the possibility of crossing the buffer to a flow dispersion facility adjacent to the wetlands with City of Renton staff at our Pre-Application Conference as a preference over placing either a water quality facility, a swale, or a dispersion facility at the top of the banks surrounding the wetlands. City staff agreed that the top of bank location for either facility could lead to destabilization of the steep slope and erosion into the wetlands. We presented the proposal to put the dispersion facility at the toe of slope as a more stable solution. City Code Section 4-32- 4.A.4 allows for the maintenance of dispersion facilities in buffer/wetland areas, which will be infrequent and require no alteration or filling of wetland areas. While it would be possible to construct the discharge conveyance, a pipe, and dispersion facility outside the buffer and wetland area,without a variance, it would constitute a threat to the sensitive areas downstream of the release. The top of slope location would be a hardship for the owner, due to potential liability resulting from the threat of slope destabilization, and to the public as a result of downstream environmental degradation. This case entails no special circumstances other than the fact that the wetlands exist and drainage must be directed toward them for their survival. C. Material Detriment - If a variance is required for this construction, the impact on Whispering Pines, surrounding properties and the public welfare will be beneficial allowing for the release of storm waters at their natural location, dispersed to minimize channelization and erosion of the wetlands and it's buffer. Other potential resolutions of this issue would more substantially impact the wetlands and it's buffer through erosion and destabilization of slope surfaces. gseitAIIM D. Special Privilege If a variance is required for this construction it would only reinforce other City of Ordinances and Codes by allowing a land owner to construction a storm water drainage,treatment and release system that minimizes impacts to immediate and downstream areas. This a privilege allowed under code for all citizens. TTHW4 00 0L0)0a GROUP E. Minimum Variance - It is understood by the proponent that should a variance be required and granted that it is for the particular circumstances proposed on preliminary planning and engineering documents being reviewed by the City of Renton. CONCLUSION: We do not believe a variance is required to allow the crossing of the proposed buffer area with a storm system discharge pipe to a flow dispersal facility at the edge of the wetlands as this construction and it's maintenance is allowed under existing City of Renton Code Chapters 22 and 32. The technical violation of City of Renton Code Chapter 4-9 for Clearing and Tree removal can be mitigated by routing the discharge pipe in areas where there will be no tree removal or damage, and by mitigating the trench and dispersal facility construction through current City of Betlhell requirements and standards. R?M1 Though we have submitted this response as a Variance Request we request that this condition be removed and proponent fees be returned. Should you have any questions or require additional information please call. Respectfully, THE O.L.D.S. Group AL)c)61,1_412_072. Robert W. O'Connell Jr.,P.E. Principal cc: Nancy Bennett BNNT-01-LT5 00.N.,oa O GROUP • ..................:..................:.......................:.............••.... IN • STATE OF WASHINGTON ) b COUNTY OF KING ) bevE-, /997 n CI)YO:R LI NftrN,NG • . `fee b\er °being firs duly sworn on oath, deposes and says: 1. On the co day of ©either— , 19(1 1 , I installed public information sign(s) of the property located at • for the following project: (a) L11perivlJ q inP� Project name Alan @ �Pv1v1e Owner Nam 2. I have attached a copy of the neighborhood detail map marked with an "X"to indicate the location of the installed sign. 3. This/these public information sign(s)was/were constructed and installed in locations in conformance with the requirements of Renton Municip ections 9-12-8 G and 9-12-9-I 2a. £ 7 WOhi Installer Signature SUBSCRIBED AND SWORN to before me this */(0 day of Gc -, , 19 7 ' •to •Cy ' NOTARY PUBLIC•in and for the State o ashington, '0,"1-"•,4 -` • • • residing at ( (0 s SE`/? . CUA . qcCior j "'* •: My commission expires on atiet.tc. a • ,�zEv.81 NS9 AO�, ,� ,Rev.ero3 MARILYN KAMCHEFF • COMMISSION EXPIRES W29/99 • CITE , F RENTON: : mu. ,,' .,. • Planning/Building/Public Works Department ' GreggZimmerman P.E. Administrator ' • . Jesse Tanner,Mayor ' • : September 26, 1997.-. 2- . , Mr. Robert O'Connell,Jr. • 4620 200th Street SW, Suite F :. :Lynnwood, WA .9.8036 ' ' • •:` SUBJECT: PLAT OF WHISPERING PINES (LUA-97-135, PP, E.CF) . • • :Dear Mr. O'Connell: _ 'environmental are unable to begin processing your application for preliminary plat approval and ' environmental review .until certain discrepancies are resolved in the project drawings, • _ • -.and`new drawings (12 copies) and PMT's:(1 copy each sheet) are' •submitted..As we ' :' : --discussed iin our.telephone conversation this:week,the proposed lot areas depicted on • the cover sheet(1of 5), site plan(3 of 5), and grading`plan (5 of 5) do not correspond to ` - • •,the dimensions iven for Lots Nos:1, 2, 3,-4, 8,•9, and 10:;gFor example; it appears that . : ' .. the lot area for Lot.No. 1 is`approximately'5,880 square feet,=not'5,500 square feet as .. shown.` .Your submittals:need to: "accurately'depict;the;exact square footage of.each ;proposed lot in'the,preliminary.'plat.'=:Please:;note that`the drawings •received today:do •. • •; =not accuratell/reflect-the size in square-feet'of each lot::'':-.�;;. :�� . - - _ In addition,the submitted lans jindiicate'the construction of�`a 12-inch stormwater outlet • and flow s reader on;the•'site': `Ci • Code 'Section,4-9 Land Clearin and Tree tutting states that:'"No'tree cutting or land clearing is permitted•within'`;25 feet of::any wetland ..�'• `::'• -1 • 'area, or on parcels_where the predominant slope or individual lidpe is.in excess of 40%• :` : . -'- except.enhancement activities:".,(4-31-9.5,D).''=The-.Code,'does allow" installation of , : utilities;in. a :wetland where.nod:feasible"alternative:exists•-pursuant to an :approved - • • .development'plan: It you intend to construct stormwater facilities in•the steep slope : - -•.' area, .and within;25 feet of the•:wetland .edge, then a'variance would be needed from • '• 'the Land Clearing and TreeCutting Ordinance.-`'The..variance would be'head by the' = - • '; ' Hearing Examiner at the same time as preliminary plat. 'An,additional fee of $250.00 - . - • _(one-half of the $500:00 Variance Fee) must be submitted, as well as 12 copies of a _ ' written narrative justifying the reasons for the variance. :A:copy.of the,Variance criteria -- - is.enclosed. . • • It is likely that Native Growth Protection Easement may be established as part of the-- ' •.subdivision process, and that easement would apply to the •steep:slope_.and wetland - - area of the'plat I would be happy to discuss piii.1:1,,/.it...h:..r1.1_ ,..!it.:1:1.ef:...:,,;:::. -; -::-: Please:feel free to contact me-'regarding-this ,correspondence: My direct.telephone ' '- number is (425) 277-6186.::I will be-away on vacation'during the_week of:September' - 29, .1997,`�eturning on,Monday, October 6. If you need assistance in the interim please -:: '-';contact Jana Huerter at(425)235-2518. - -='•- ; ". .H:\DIVISION.S\DEVELOP.SER�DEV&PLAN.ING'J MWHSPNLTR DOC ' - "-•200 Mill Avenue South;;-'Renton,Washington=98055_•.: - - • • . , Page 2 -• .. September 26, 1997 = - • Sincerely, : . - , u :_ Jennifer oth Henning . - ' Project Manager cc: Dave Peebler ..' . - • CADvantage . : . 23306 115th Place SE . . . , • •. ' • . , Kent, WA 98031 - i • . • Nancy Bennett 2612 Jones Avenue NE : : Renton, WA 98056 , . . • Y •`c i ,a :': dq' '• 'err.' v� iJ . .. • , . - .. fa, ,l «a �3,- °'A°/n:..:s;'t YY'y..'tl'YiwF. �. �'� /- DEVELOPMENT SERVICES DIVISION - • ASTER::iiApp..LitkATIUN-:::::usimme:2:Nagnalms . . •••• " •• " • •••.•-• • :"• • • ........ -• .•- , . - • ••• • • PROJECT INFORMATION. Note: If there is more than oneilagSleovinar:;::#0sa'#ftas#NOtadditional . notarized Master Appii6iition for•e•tich ovine;: EXISTING LAND USE(S):• NAME: Nancy P. Bennett Land is presently vacant, except for a • . 1,253 S..-F,*.garage.'W/860 S.F. concrete Pads attached. ADDRESS: 2612 Jones Avenue N.E. • EXISTING ZONING: Single Family Residential (SF) R-8 , • • CITY: Renton, Wa ZIP: 98056 . • . . • PROPOSED LAND USE(S): Creation, of 10 single Family TELEPHONE NUMBER: (206) 255-1540 Lots -_w/minimum area•if 5,500 S.F. . ..•• • • . .•• • • CONTACT PERSON/APPLICANT NAME: Robert W..-O'Connell Jr • PROPOSED ZONING: SF-(R-8) • • • ADDRESS: 4620 200th st. S.W. STE - F SITE AREA(SQ.FT. OR ACREAGE): 2.79 Ac. CITY: Lynwood,-Wa ZIP:98036 TELEPHONE NUMBER: (206) 712-9688 PROJECT VALUE: Finished MKT value $350K Construction Cost $160K . , • • • •••-- •••• • • -• • . •. •• ••• • PROJECT OR DEVELOPMENT NAME: IS THE SITE LOCATED IN THE AQUIFER PROTECTION AREA? Plat of Whispering Pines. Zonegil PROPERTY/PROJECT ADDRESS(S)/LOCATION: • • •••• 2612 Jones Avenue N.E. Renton, Wa 98056 IS THE SITE LOCATED IN ANY OTHER TYPE OF ENVIRONMENTALLY . SENSITIVE AREA? KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): Wetlands 0e,e.ogVVE:grner of Site 3343902064 • • -• sE9 1. 11,97 01V°1- -Y r LEGAL. DESCRIP•Er,.i.,N,.OF PROPERTY•:,(Attach.separa,e'.sheet.if•pecessa"ryy.: > >::`. :::..,•:::... . • See Attached • • • ' .. .. ... ... .. :: ::: :'. ::i4:iv:4:•:iiiX?•:.::.}ii:::iY..iv.: ':iii::?::{{�..vi}i:\.: ::i•'.:n•.Lii ...,:. :TYP E OF- APP C ....... . ..,::,.. .... .... . V. es:that:a 1 -=Ci staff•'willdetermine<fees > :><< >:`: -1, .. >> '"• Check all application typ ... ... pp.y _ANNEXATION $ SUBDIVISION: _ REZONE $ • _ SPECIAL PERMIT $ — LOT LINE ADJUSTMENT $ _TEMPORARY PERMIT $ — SHORT PLAT $ • _CONDITIONAL USE PERMIT $ TENTATIVE PLAT $ _ SITE PLAN APPROVAL $ XX PRELIMINARY PLAT S 0.00 _GRADE & FILL PERMIT $ _ FINAL PLAT $ (NO. CU. YDS: 1 — VARIANCE $ • PLANNED UNIT DEVELOPMENT: $ (FROM SECTION: 1 _WAIVER $ _ PRELIMINARY WETLAND PERMIT $ FINAL ••_ — _ ROUTINE VEGETATION - - • MANAGEMENT'PERMIT: $ MOBILE HOME PARKS:' • $ • _ BINDING SITE PLAN $ SHORELINE REVIEWS: • TENTATIVE _ PRELIMINARY _ SUBSTANTIAL DEVELOPMENT $ _ FINAL _ CONDITIONAL USE $ _ VARIANCE $ _ EXEMPTION SNo Charge g ENVIRONMENTAL REVIEW • $ 60049 . • REVISION $ ...�.:...:.:...::: '.:• ' :.>:. FF D . 1/IT.:O.F.::OWN.ERSHIP...:._..:.. .::... ..::::.:,.::.:10:.::: :::::.:::.:::::::160:.; .:;:14:::.. I. (Print Name) A494) ..y Be-htl'ec,declare that lam (please check one) .the owner of the property involved-in this application.—_—_the authorized representative to act for the property owner(please attach proof of Authorization),and that the foregoing statements and answers herein contained end the information herewith submitted are in all respects true and correct to the best of my knowledge and belief. 1 ,A• DEC d �� .•ZSaion F': r A EST: Subscrib d and sw• n to before m a Notary Public. in and ,1 •�e� A% • �forl h: Sta = of is 4siding at Gt�N.Q�Gly J (Name of Ow r/Representative) ; ' :cs NOTAF?1'm"•• u7 a. q„ t� • . on the/0— ay of ��JJ (Sig/nature caner/Representative) I fit; <,•'..?•ta,•-.,c q .r9 L�� -� �� '�,_�uFWA$ :'Signatu,e of Notary Public) Na�U p iees. /o_/t-g7 ..,. .. .. •:. ..; •- i. c i n:to be com eted b CityStaff.) '. .•..::.:............................. ... :.. .. ... (Th s sect o - .... .:,. :.::.::...: .....;•: : , City Fite Number:,Cfl�'1 •-'. .:. ECF S.A:.::R:..SHPL CU .:LLA PP FP.:::TP.::;SP.,.::RVMP : V. ::::. ME:;`:PMHP',' .FMHP... BSP A.:':: ::•;:«:, r:;;::.a:::° ::: ::: .. :.' :; >' :.... ..:.::: ,.::::; :':<= :: PR V., : :�; .::TOTAL:FEES;.•.S�.. .�D3':.t�•'.:.::::::;.:.::> •::.>:.::,;TOTAL.:POSTAG.E. :::PROVIDED 5.��'� .�D :.::.: ••;.::.;:.;:_:.:•. '.:. ' • • REV'SED 1/95 LEGAL DESCRIPTION THAT PORTION OF TRACTS 255, 256, 257, 275. 276, 277 OF C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS, PAGE 82, RECORDS OF KING COUNTY. WASHINGTON. DESCRIBED AS FOLLOWS: BEGINNING AT THE NORTHWEST CORNER OF TRACT 277; THENCE SOUTH 89'43'59" EAST 114.44 FEET ALONG THE NORTH LINE OF SAID TRACT TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 89'43'59" EAST 517.18 FEET; THENCE SOUTH 00'34'06" WEST 221.97 FEET TO A POINT ON THE SOUTH UNE OF SAID TRACT 255; THENCE SOUTH 89'59'33" WEST 517.62 FEET ALONG THE SOUTHERLY UNE OF TRACTS 255 AND 275; THENCE NORTH 00'33'45' EAST 80.05 FEET; THENCE NORTH 89'52'13" WEST 94.15 FEET TO THE BEGINNING OF CURVE TO THE LEFT HAVING A RADIUS OF 20 FEET; THENCE ALONG SAID CURVE THROUGH A CENTRAL ANGLE OF 89'34'02". HAVING AN ARC LENGTH OF 31.26 FEET TO A POINT ON THE EAST UNE OF JONES AVENUE; THENCE NORTH 00'33'45" EAST 90 FEET ALONG SAID LINE; THENCE SOUTH 00'33'45" WEST THROUGH A CENTRAL ANGLE OF 90'25'58" HAVING AN ARC LENGTH OF 31.57 FEET; . THENCE SOUTH 89'52'13" EAST 94.29 FEET; THENCE NORTH 00 33'45" EAST 94.40 FEET TO THE TRUE POINT OF BEGINNING. (ALSO KNOWN AS PARCEL 3 OF CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86, RECORDED UNDER RECORDING NO. 8609229011.) SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON. RECEIVED TREE 00ILO D)O O GROUP 1 1 1997 O'CONNELL LAND DEVELOPMENT SERVICES SEP 4620 - 200th St. S.W., Suite F • Lynnwood, WA 98036 ;�ytL�NmE�i'I PLANNING Office: 425-712-9688 • Fax: 425-712-9832 CITY ME i PLAN TON BNNT-01-WSPN Ms. Jennifer Henning September 8, 1997 City of Renton Planning/Building/Public Works Department 200 Mill Avenue South Renton, WA 98055 Re: Preliminary Plat of Whispering Pines Introduction Dear Ms. Henning: The attached documentation has been submitted on the behalf of Nancy P. Bennett owner of the 2.79 acre parcel that is proposed to become the Plat of Whispering Pines. We attended a Pre- Application meeting, File No. 97-11, at the City of Renton on February 13, 1997. Since that meeting we have been preparing documents and notifications to meet the requirements of the staff comments and city standards. We would like your special consideration of the following issues. 1. Plat Submittal - City of Renton standards request that the plat be submitted on an 18" by 24" plan sheet. We are submitting on 22" by 34" plan sheets to preserve detail and scale in relation to the other drawings. 2. Tree Cutting Plan - This has been incorporated into the Grading Plan, Sheet 5, as there are only three trees of record to be removed. 3. East Kennydale Sewer Interceptor Easement - Prior to the Pre-Application meeting we asked the City of Renton to consider relocation of the interceptor easement into the buffer area. Mr. Neil Watts replied that the City of Renton would not construct the sewer in a sensitive area or immediately above a steep slope. We have realigned the easement so that the sewer would fall along the outer limit or just outside the buffer limits line. This alignment would reduce overall length, position the line so that it would minimally effect residential construction, and still preserves the point of entry and exit for the line as originally planned by the city. A legal description has been attached for your review. All other information has been prepared in accordance with the City of Renton standards and staff comments. Should you have any questions or require additional information please call. Respectfully, THE . .D.S. GROUP c )1/l4-#, Robert W. O'Connell,P.E./P.L.S. Principal BNNT-01-LTR4 RECEIVED SEP 1 '1 1997 EXHIBIT "A" DEVELOPMENT PLANNING CITY OF RENTON Sanitary Sewer&Waterline easement Whispering Pines-Preliminary Plat A 15 foot wide easement lying 7.5 feet on each side of the centerline thereof, said easement lying within the a portion of Tracts 256, 257, 276, 277 of C.D. Hillmans Lake Washington Garden of Eden Division No. 4, According to the plat thereof, recorded in Volume 11 of Plats, Page 82, Records of King County,Washington, said centerline being more particularly described as follows: COMMENCING at the Northwest corner of said Tract 277; Thence S 89°43'59".E along the North line of said Tract a distance of 372.59 feet to the centerline terminus of the herein described easement; Continuing S 89°43'59" E 259.03 feet to the Northeast corner of Whispering Pines; Thence S 00°34'06"W along the East line of Whispering Pines a distance of 136.97 feet to the POINT OF BEGINNING;Thence N 89°19'10"W 102.72 feet; Thence N 49°15'30"W 204.51 feet; Thence N 00°00'00"E 3.47 feet to the terminus of this centerline description. The sidelines of this easement shall be shortened or lengthened so as to meet at angle points and terminate at the East line of Whispering Pines and said North line of Ttact 277. Situate in King County,Washington. • 1177eOLO---moa GROUP , , TEE coolo-oho c ® H O'CONNELL LAND DEVELOPMENT SERVICES 4620 - 200th St. S.W., Suite F • Lynnwood, WA 98036 Office: 425-712-9688 • Fax: 425-712-9832 BNNT-01-W SPN Ms. Jennifer Henning September 8, 1997 City of Renton Planning/Building/Public Works Department 200 Mill AvenueSouth Renton, WA 98055 Re: Preliminary Plat of Whispering Pines Project Narrative Dear Ms. Henning: On February 13th of this year the City of Renton had a Pre-Application meeting, File No. 97-11, for the Plat of Whispering Pines. We received preliminary city comments concerning the development, which we have used to prepare the attached set of drawings and documents. The Project Narrative and Construction Mitigation Plan are attached to this letter for your use and review. PROPERTY CHARACTERISTICS: 1. Size and Current Use - The property is approximately 520 feet in the east-west direction and approximately 220 feet, measured north-south, with a 50 foot wide by 94 foot long connection to Jones Avenue Northeast on the west, covering 2.79 acres. The northwest portion of the site has been used to pasture a horse, while the southwest portion has been used as a garage area with a 30 foot by 42 foot shop building. Trucks and construction equipment were parked and maintained in this area. The eastern half of the site consists of a meadow and wetland area. The meadow is a grass and shrub area, that has been used to store construction materials such as wood beams, steel sheets and beams, and tires. Fire wood was also stacked in the meadow area. The wetland area has been delineated and is designated a Category II. 2. Special Site Features - There is a 0.59 acre Category II wetland in the northeast portion of the site, which will not be developed, but set aside in a Native Growth Protection Area (NGPA) as part of the plat. The wetland has a surface elevation of approximately 236, while the development area varies from elevation 264 to 246. The slopes into the wetland vary from 30% to 70% in the banked area, with slopes from 10% to 15% above the bank. The proposed NGPA will include a 50 foot wide buffer area to protect the we . a d area. The buffer begins at the toe of slope/bank and extends past the top I.' i' � '+. all the way around the wetland. SFP 1 1997 DEV EcLiOrtP of RLNTONN ING 3. Zoning - The current zoning is Single Family,R-8. The zoning on all sides of the proposal are currently zoned the same. The Plat of Whispering Pines proposes to use the existing zoning. 4. Project Proposal - The proposed project would demolish the existing shop building, construct a 32 foot wide street with adjacent curb/gutter, sidewalk and planting strip in a 50 foot wide right of way. The street and right of way will be dedicated to the City of Renton when the final plat is recorded. The street area will include a storm drainage collection, conveyance and quantity/quality mitigation facilities. The storm water drainage quantity/quality mitigation facility is proposed to be a wet vault which will discharge to the wetland area through a level spreader. Franchise and public utilities will be extended and constructed in the street area. A separate sanitary sewer line,the East Kennydale Interceptor, is proposed to run along the border of the NGPA, not crossing any steep slope or sensitive areas. Building lot areas will not be graded as part of this proposal, but maybe graded during construction of housing. 5. Project Timing - We expect the Preliminary Plat and Final Plat review and approval processes within the City of Renton to take approximately nine to twelve months from initial submittal. This would allow construction to begin between June and August of 1998. Construction of the street and utilities will require two to three months, which should complete the construction by the end of 1998. No phasing is proposed. The above information is also provided in the SEPA checklist, some is shown on the attached plans and other portions are discussed in the reports that have been submitted as part of this Preliminary Plat Application. Should you have any questions or require additional information please call. Respectfully, THE O.L.D.S. GROUP n~ 11 Robert W. O'Connell Jr.,P.E./P.L.S. Principal BNNT-01-LT2 TEE OOoLoIOa GROUP TEE 0)OLOID o GROUP RECEIVED O'CONNELL LAND DEVELOPMENT SERVICES 4620- 200th St. S.W., Suite F • Lynnwood,WA 98036 SEP 1 1 1997 Office: 425-712-9688 • Fax: 425-712-9832 BNNT-OI WSPN DEVELOPMENT PLANNING CITY OF RENTON Ms. Jennifer Henning September 8, 1997 City of Renton Planning/Building/Public Works Department 200 Mill Avenue South Renton, WA 98055 Re: Preliminary Plat of Whispering Pines Construction Mitigation Plan Dear Ms. Henning: On February 13th of this year the City of Renton had a Pre-Application meeting, File No. 97-11, for the Plat of Whispering Pines. We received preliminary city comments concerning the development, which we have used to prepare the attached set of drawings and documents. The following Construction Mitigation Plan has been prepared for your use and review. CONSTRUCTION MITIGATION PLAN: 1. Compliance - When the Final Plat Documents are prepared for this project, the applicant will be required to submit to the City of Renton a Temporary Erosion/Sedimentation Control Plan(TESCP). This plan will show how storm water will be captured, conveyed and treated during construction. The plan will be supported by calculations and details in accordance with City of Renton Standards and Specifications. 2. Construction Timing - It is assumed that the Final Plat Submittal plans will not be approved until the early fall of 1998. Construction would begin after approval of the final plat plans and will take between two to four weeks beginning in September of 1998 to be completed by the end of the year. 3. Construction Operations - Hours of construction will be held to 7:00 AM to 3:30 PM daily for week day operation. No weekend construction is contemplated at this time. Hauling of construction materials will most likely come south along Kennewick Place Northeast, then west on Northeast 28`h Street to Jones Avenue Northeast which fronts the site. Hours of hauling will be shortened, depending on time of year, as there is a school at the intersection of Kennewick Place and 28th Street which has heavy week day traffic after 3:00 PM. Construction traffic could be routed onto Northeast 24th Street from Aberdeen Avenue Northeast if required. 4. Mitigation Measures - Noise,traffic and noxious impacts will be controlled by the hours of operation discussed above. Dust, mud and construction impacts will be mitigated by the installation of TESCP facilities to be designed at the time of the submittal of Final Plat Plans. These latter mitigation methods would include use of a water truck to control dust, installation of TESC ponds and swales to control runoff, and installation of graveled truck entrance to ensure site soils do not become deposited on City of Renton streets. Should you have any questions or require additional information please call. Respectfully, THE O. D.S. GROUP Robert W. O'Connell Jr. Principal BNNT-01-LTR3 UlliE 00 0L0)0 0 MOUT SEPA CHECKLIST PRELIMINARY PLAT OF WHISPERING PINES RENTON, WASHINGTON Prepared for: Nancy Bennett By: The O.L.D.S. Group 4620 200th Street Southwest, Suite F Lynnwood, WA 98036 (206) 712-9688 RECEIVED SEP 1 1 1997 DEVELOPMENT PLANNING 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, if 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 the preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary 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 the 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 reasonably related to determining if there may be significant adverse impact. Use of checklist for nonproject proposals: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS(Part D). For nonproject actions,the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer,"and "affected geographic area," respectively. 1 Environmental Checklist A. BACKGROUND 1. Name of proposed project, if applicable: Plat of Whispering Pines 2. Name of applicant: Nancy P. Bennett 3. Address and phone number of applicant and contact person: Applicant: Nancy P. Bennett Contact: Robert W. O'Connell Jr. 2612 Jones Avenue Northeast The O.L.D.S. Group Renton, WA 98056 4620 200th Street Southwest (206) 255-1540 Lynnwood, WA 98036 (425) 712-9688 4. Date checklist prepared: June 18, 1997 5. Agency requesting checklist: CITY OF RENTON 6. Proposed timing or schedule(including phasing, if applicable) Permit Approval - November 1997 Construction Completion - August 1998 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No expansion possible. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Sargent Environmental Consulting report dated March 13, 1995 for Nancy Bennett, wetlands determination and flagging. Agra Earth and Environmental report no. 6-91M-10292-B dated January 1997 for R W. Beck, Inc. and the City of Renton, Kennydale Sewer Interceptor Geotechnical Engineering Report. Earth Consultants Inc. report no. E-7624, dated May 22, 1997 for Nancy Bennett, a geotechnical report and analysis. 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. Yes. The City of Renton is presently planning to construct the East Kennydate Sanitary Sewer Interceptor and a water main connection on the east portion of the property. 10. List any government approvals or permits that will be needed for your proposal, if known. SEPA determination by the E.R.C. Hearing Examiner Recommendations City Council Approval Final Plat permits 2 ' J Environmental Checklist 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. (Lead agency may modify this form to include additional specific information on project description.) The 2.79 acre parcel is approximately 255 feet in the north-south direction and 517 feet'in the east-west direction. This plat proposes to divide the property into 10 lots ranging from 5,500 to 13,141 square feet in size in accordance with City of Renton R-8 single family requirements incorporating lot size averaging over the entire parcel area less roadways. A roadway 32 feet wide will be constructed east from Jones Avenue Northeast into a cul d sac to provide access to the lots. Utility services will follow the roadway. 12. Location of 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 topographical 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 applications related to this checklist. The parcel is located in the NE '/ of Section 5, Township 23 North, Range 5 East W.M. East in the City of Renton, east of Jones Road Northeast between residences addressed as 2612 and 2616. The parcel is King County Tax Lot 3343902064. The legal description and vicinity maps are attached. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site(circle one); flat,rolling, hilly, steep slopes, mountainous, other X The slopes range from flat to 4% on the west half of the site, and from flat to 65% on the eastern half The steeper slopes dropping into a wetland area in the northeast corner of the parcel. b. What is the steepest slope on the site(approximate percent slope)? The steepest slope is 65%along the southwest margin of the bank above the wetlands. c. What general types of soils (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. Based on the SCS King County Soils Survey the upland soils are a dry sandy-loam typical of the Indianola series and the wetlands are a silty-loam with high organic content and are not classified by the geotechnical reports. 3 Environmental Checklist d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. The steep banks dropping into the wetlands showed some signs or erosion. e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. Potential cut and export are expected for up to 500 CY of topsoil in the roadway area. Approximately 250 CY of material will go from cut to fill. The final design might require small amounts of additional cut and fill depending on the finished grades of the roadway and the vault. Source of fill, if required, to be determined by owner and approved by the City of Renton prior to pre-construction meeting. All CY measurements in approximate bank yards. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. It is possible that soils could be eroded during wet weather in the roadway area during construction of the roadway and utilities. g. About what percent of the site will be covered with impervious surfaces after project construction(for example, asphalt or buildings)? Roadways, house and driveway construction could ultimately cover a maximum of 38% of the site area. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: Temporary erosion and sedimentation plans (TESCP) will be provided as part of the grading permit submittal. The plans, which would include the use of gravel or paved site access during construction, swales and ponds to control any wet weather erosion and recommendations to limit construction to the dry season, would have to be approved by the City of Renton prior to construction. 2. AIR a. What types of emissions to the air would result from this 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. The local area would be subject to increased automotive emissions from increased residential traffic and construction activity. It is possible that some dust maybe generated during construction. 4 ' 1 Environmental Checklist b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. No. c. Proposed measures to reduce or control emissions or other impacts to air, if any: We have no proposals to limit residential traffic. Dust from construction activity will be controlled with periodic watering. 3. WATER a. Surface Water: 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 are headwater wetlands in the northeast corner of the site, which feed an unnamed tributary of May Creek 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. The City of Renton plans to install the East Kennydale Interceptor adjacent to and across the wetland buffer in the northeast corner of the site. A portion of the sewer will be paralleled.by a water main south of the wetlands. The plat will construct portions of the roadway, utilities and four homes within 200 feet of the wetlands. 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 the fill material. No fill or dredging of the wetlands is planned. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose,and approximate quantities if known. No. 5) Does the proposal lie within a 100 year floodplain? If so, note location on the site plan.. No. 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. 5 1 Environmental Checklist b. Ground Water: 1)' Will groundwater be withdrawn, or will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. No. 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 such systems,the number of houses to be served ( if applicable), or the number animals or humans the system(s) are expected to serve. The site is served by sanitary sewer and storm runoff will be discharged to the surface waters of the wetland No discharges to ground water are planned 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. Storm water will be collected from roof driveway and roadway impervious surfaces by flow into or direct connection to street catch basins. The catch basins will connect to a detention/water quality vault. The discharge from the site currently flows both east and west. The west 0.68 acre basin discharges 0.06, 0.09 and 0.17 CFS for the 2, 10 and 100 year storms respectively. The west basin will continue to discharge at the same levels without detention as it will be reduced to 0.36 acres after plat development. The east 1.52 acre basin discharges 0.02, 0.05 and 0.17 CFS for the 2, 10, and 100 year design storms. The east basin will be increased to 1.75 acres by plat development with the outlet controlled to pre-development flows through detention. Approximately 0.09 acres of lawns and undeveloped pervious area will bypass the detention system. Please see the Engineering Design Report by the O.L.D.S. Group, submitted with this document for additional details. 2) Could waste material enter ground or surface waters? If so, generally describe. It is possible during construction that fuel or other construction material could be spilled and reach the wetlands. Post construction materials could include fertilizer and yard chemical residues. d. Proposed measures to reduce or control surface, ground,and runoff water impacts, if any: TESCP facilities should trap construction fuel and material spills, and if properly maintained keep the material from the wetlands. The post construction pollutants will be subject to water quality treatment in the water quality vault. 6 Environmental Checklist 4. PLANTS a. Check or circle types of vegetation found on the site: X_deciduous tree: alder, maple,aspen, other X_evergreen tree: fir,cedar,pine, other X_shrubs X_grass X_pasture _ crop or grain X_wet soil plants: cattail,buttercup, bulrush, skunk cabbage, other,see attached report by Sargent Environmental Consulting. X_water plants: water lily,eelgrass, milfoil, other, _other types of vegetation b. What kind and amount of vegetation will be removed or altered? Some scrub alder, grasses, three significant alders,four significant firs and berry bushes will be removed to construct the roadway. No significant trees will be removed to construct the housing, only grasses, bushes and brush. c. List threatened or endangered species known to be on or near the site. None have been observed d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: Street trees will be planted in accordance with City of Renton requirements for the roadway. Lots will be landscaped by homeowners. 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: X_ birds: hawk, heron,eagle, songbirds, other: robins, wrens and other small birds. X_ mammals: deer,bear, elk,beaver,other: rodents. —fish: bass, salmon,trout,herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. None observed or identified c. Is the site part of a migration route?If so, explain. No. 7 Environmental Checklist d. Proposed measures to preserve or enhance wildlife, if any: None proposed or required 6. ENERGY AND RESOURCES a. What kinds of energy (electrical, 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. Electricity and natural gas will be extended to the site for residential heat, lighting and amenities. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe.. No solar collectors in the area. 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: - None proposed or required 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. Yes. During construction fuel and material spills are possible. 1) Describe any emergency services that might be required. No special emergency services required. 2) Propose measures to reduce or control environmental health hazards, if any: The contractor will be required to provide a spill prevention plan for construction activities. b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? There is no offsite noise of relevance. 8 • Environmental Checklist 2) What types and levels of noise would be created by or associated with the project on a short-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Construction equipment will increase noise level in the area during the hours of 7:00 AM to 7:00 PM for about four weeks. 3) Proposed measures to reduce or control noise impacts, if any: Construction hours will be limited to weekdays only between the hours of 7:00 AM and 7:00 PM 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? About half the property is presently being used to pasture a horse. The remainder is vacant except for an garage, no longer in use. b. Has the site been used for agriculture? If so, describe. Only for pasturing a horse. c. Describe any structures on the site. There is a garage in the south central portion of the site with an open wood frame, metal roof 30'by 42'concrete floor and outside concrete pads, approximately 2,100 SF of impervious area. d. Will any structures be demolished? if so,what? The garage and concrete pads described in part `c', above. e. What is the current zoning classification of the site? Single family, R-8. f. What is the current comprehensive plan designation of the site? Single family residential. g. If applicable,what is the current shoreline master program designation of the site? Not applicable. 9 Environmental Checklist h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Yes. There a‘re wetlands in the northeast corner of the site. i. Approximately how many people would reside or work in the completed project? Site residency is anticipated to be 20 to 40 people with no business. j. Approximately how many people would the completed project displace. None.. k. Proposed measures to avoid or reduce displacement impacts, if any: None required. 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The sensitive area will be protected by creating a wetlands and buffer NGPE. 9.Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle or low-income housing. The housing is project to be middle income. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. No housing units will be eliminated c. Proposed measures to reduce or control housing impacts, if any: Creation of the wetland NGPE and compliance with the zoning code. 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? The tallest structure is limited to 30 feet high by code. Contemporary exterior materials would include wood, metal, stucco, brick or plastic siding. 10 Environmental Checklist b. What views in the immediate vicinity would be altered or obstructed? No views will be impacted by this proposal. c. Proposed measures to reduce or control aesthetic impacts, if any: None required. 11. Light and Glare a. What kind of light or glare will the proposal produce? What time of day would it mainly occur? Residential and street lighting will increase total light in the morning and evening hours, and the street lighting will be on most of the night, but total intensity can be maintained within City of Renton zoning standards. 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? There are none. d. Proposed measures to reduce or control light and glare impacts, if any: None required. 12. Recreation a. What designated and informal recreation opportunities are in the immediate vicinity? There are playfi:elds north of Northeast 28'h Street near Jones Avenue Northeast. b. Would the proposed project displace any existing recreational uses? If so,describe. No. o. Proposed measures to reduce or control impacts on recreation, including recreational opportunities to be provided by the project or applicant, if any: None required 11 Environmental Checklist 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, archeological, scientific, or cultural importance known to be on or next to the site? If so, generally describe. Not applicable. c. Proposed measures to reduce or control impacts, if any: None required. 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. A new street,potentially N.E. 261"Place, would connect the site to the east margin Jones Avenue Northeast. North along Jones Avenue, and Kenewick Place Northeast provide a connection to I- 405 via the Kennedale/Northeast 32nd Street exit, approximately a half mile from the site. b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? A quarter mile to Kennewick Place Northeast. c. How many parking spaces would the completed project have? How many would the project eliminate? Potentially 30 on street stalls plus individual residence parking, none will be 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). The developer will construct 500 LF of roadway with 50 foot cul d sac connecting to Jones Avenue Northeast. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. No. 12 Environmental Checklist f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Peak volumes will likely occur between 6.•00 and 9:00 AM and 3:00 and 6:00 PM, 30 potential peak hour trips. g. Proposed measures to reduce or control transportation impacts, if any: Stop sign at Jone Avenue Northeast on the new plat street, Northeast 266 Place. 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. b. Proposed measures to reduce or control direct impacts on public services, if any. Current fire and police protection, health care and public school facilities will cover the new population. 16. Utilities a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service., telephone,sanitary sewer,septic system, other. 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. Water and sewer will be provided from existing City of Renton facilities bordering the site, Puget Power will provide electricity, phone service will be by U.S. West, gas service is from Puget Energy Company and the City of Renton provides refuse service. SIGNATURE 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 migh issue in reliance upon this checklist should there be any willful misrepresentation or will 1 lack of full disclosure on my part. Proponent: 0 /mod Name Printed: /a 66 w- Ceyt_Av t3l/ Z1 Date: // 5.2 / '7 Revised 9/94 13 • LEGAL DESCRIPTION THAT PORTION OF TRACTS 255, 256, 257, 275, 276, 277 OF C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 11 OF PLATS, PAGE 82, RECORDS OF KING COUNTY, WASHINGTON. DESCRIBED AS FOLLOWS: BEGINNING AT THE NORTHWEST CORNER OF TRACT 277; THENCE SOUTH 89'43'59" EAST 114.44 FEET ALONG THE NORTH LINE OF SAID TRACT TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 89'43'59" EAST 517.18 FEET; THENCE SOUTH 00'34'06" WEST 221.97 FEET TO A POINT ON THE SOUTH LINE OF SAID TRACT 255; THENCE SOUTH 89'59'33" WEST 517.62 FEET ALONG THE SOUTHERLY LINE OF TRACTS 255 AND 275; THENCE NORTH 00'33'45" EAST 80.05 FEET; THENCE NORTH 89'52'13" WEST 94.15 FEET.TO THE BEGINNING OF CURVE TO THE LEFT HAVING A RADIUS OF 20 FEET; THENCE ALONG SAID CURVE THROUGH A CENTRAL ANGLE OF 89'34'02", HAVING AN ARC LENGTH OF 31.26 FEET TO A POINT ON THE EAST LINE OF JONES AVENUE; THENCE NORTH 00'33'45" EAST 90 FEET ALONG SAID LINE; THENCE SOUTH 00'33'45" WEST THROUGH A CENTRAL ANGLE OF 90 25'58" HAVING.AN ARC LENGTH OF 31.57 FEET; . THENCE SOUTH 89'52'13" EAST 94.29 FEET; • THENCE NORTH 00'33'45" EAST 94.40 FEET TO THE TRUE POINT OF BEGINNING. (ALSO KNOWN AS PARCEL 3 OF CITY •0_F RENTON LOT LINE ADJUSTMENT NO. 010-86, RECORDED UNDER RECORDING NO. 8609229011.) SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON. tiT - REACM PARR UM n I'' N M MTh ti, F i F TOTN •r MD IR : : n ! KENNYDAL1O I MST If PONT III" I c, 1 j '•• — 15 ATN67� r,S rE . IS fST rhin ton _ W M Sf DST 5 NE lrrt . ai NE ATM a NE 1 N ST 9y� s 'N1 1 "�T g MO •j<IT-f,.! -��_NE Sa 67I7 •T 7 i. • r 4 . H ..' I i L z iSCC. O NEI. g a3 I I 'r1'c1 'f-I A N L .A . ' • A 11, L IB' ..1. . • 7`}, II tea'•:•r` r- ; NI W If111 �ST A "" ITT . I I �```�'I 4/z • . EPARI i L • ; • ST I I , �, Uq ;:IE >_ • E 1: 5 115T" Wr a <a CD NE IOTN 1 �� /OAT LAUNCH \ ' v M® a 1 MSC \` NE CTN 1ST �' F®� 1 RENTON \1' i— 1 --J.. NE CM r I•;;`3f..r :I t 1 11511" • M® 'T _ST -' REN ON ? 94_-< �::. T, nTN I � � WN -�T�,,,�1 b sr � , li E STm t:..r` • I 2. "i " �" v �` S 123".ST— T'" 1, rmat;5:• -7i• . 123"D PI. ,E._ , •li rI1 N ' Rfll i � E' ` ST Nrt s ` • r .`P • 'en. OR IS �u�Of�`"KTTst: ._ �N i' s i ";:�I n E'ii`s C. im 'sT . .. 1 ...; s 1 • Figure 1: Vicinity Map Not to Scale SARGENT ENVIRONMENTAL CONSULTING 613 NW 52nd Street, Seattle, Washington 98107 (206) 782-3613 March 13, 1995 RECEIVED SEP 1 1 1997 Nancy Bennett 2612 Jones Avenue NE DEVEL0i-nnENI PLANNING Renton, Washington 98056 CITY OF RLNTON RE: Whispering Pines Wetland Boundary Delineation Dear Ms. Bennett, A wetland study was conducted to identify wetland boundaries on a 3.2 acre property located in a 630 foot long lot behind 2612 and 2616 Jones Avenue NE, Renton, Washington. The Whispering Pines short plat is planned for this property. This short letter report should be sufficient for submittal to the City of Renton due to the distinct wetland boundary, avoidance of impacts to the wetland, and the small project size. If a more detailed report is required for permitting, one can be prepared. Wetland boundaries were identified using the Federal Manual for Identifying and Delineating Wetlands (FICWD, 1989) as required by the City of Renton's Wetland Management Ordinance#4346. This manual provides the criteria used to identify wetlands based on examination of vegetation, soils, and hydrology for wetland and upland characteristics. The routine method in the federal manual was used to delineate the wetland on this project site because of the distinct boundary between the upland and wetland areas. Data sheets from the delineation are included at the end of the letter report. The project site is located on a gradual sloping ridge that runs north-south across the center of the property. This area is currently being used as pasture and appears to have been graded some time ago for this purpose. A sharp elevation drop occurs in the northeast corner at the edge of pasture and graded area. A wetland occurs at the base of the fill slope and covers the low lying northeast corner of the property. the wetland extends off site to the north and east. UPLAND The ridge and pasture have upland characteristics and do not meet the technical criteria SARGENT ENVIRONMENTAL CONSULTING of wetlands. The Soil Survey of the King County Area maps the soils on the site as Indianola loamy fine sand, a nonhydric upland soils. The soils found in upland areas were Indianola soils characterized by dark brown (10YR 3/3) to dark yellowish brown (10YR 3/4) sandy loam. Soils were dry and did not fill with water. The vegetation in upland areas was dominated by Facultative Upland (found in uplands greater than 67% of the time) and Facultative (found in uplands between 33-67&% of the time) plant species. A few Douglas-fir (Pseudotsuga menziesii), big-leaf maple (Acer macrophyllum), and black cottonwood(Populus trichocarpa)remain from the second growth forest that once covered the area. The pasture is dominated by common non-native upland grasses and weeds including clover (Trifolium spp.), Kentucky bluegrass (Poa pratensis) and dandelion (Taraxacum officinale). A data sheet for the pasture area is included in this report. Clumps of upland shrubs -- Himalayan blackberry (rubus discolor) and Japanese knotweed(Polygonum japonica)-- are common in the upland areas. Swordfern(Polystichum munitum) is found in the less disturbed portions of the upland. WETLAND The Northeast corner of the project site was identified as wetland because it meets the criteria for wetland vegetation, hydric soils and wetland hydrology. A blueprint showing the wetland boundary is attached. Test pits dug at the base of the slope filled with water to within a foot of the surface and ponding water was evident in portions of the wetland. Soils were saturated and very dark gray (10YR 3/1) silt loam. Some flowing water was present in the wetland. However, no distinct channels or gravel beds characteristics of a stream were located. Water flows from the wetland north to a tributary of May Creek. Vegetation in the wetland was dominated by Facultative(found in wetlands between 33-67% of the time), Facultative Wetland (found in wetlands more than 67% of the time), and Obligate (found in wetlands over 99% of the time) plants species. Red alder (Alnus rubra) and Black cottonwood were the most prevalent trees. Salmonberry (Rubus spectabilis) and vine maple (Acer circinatum) were the dominant shrubs. Lady fern (Athyrium felix femina), Tolmiea (Tolmiea menziesii) and skunk cabbage (Lysichiton americanum) were common in the herb layer. BOUNDARY DETERMINATION The wetland boundary was distinct with a soils, vegetation and hydrology changing at the base of a sharp topographical break. The data sheets presented were recorded for an upland and wetland area two feet on either side of wetland flag # A-2. The data sheets demonstrate the change in all three criteria in a distance of four feet. SARGENT ENVIRONMENTAL CONSULTING WETLAND CLASSIFICATION Wetlands in the City of Renton are divided into three categories (City of Renton Ordinance #4346). The wetland is located at the headwaters of a. tributary to May Creek. A headwater wetland is considered a Class 2 wetland. The buffer width, an area of undisturbed vegetation required to be retained around each wetland, is determined by the wetland category. A 50-foot buffer is required around all Category 2 wetlands. If you should any questions or need further assistance with environmental issues, please give me a call.. Sincerely, en Sargent Sargent Environmental Consulting -. 4 DATA FORM _ RO' NE ONSITE DETERMINATION ME',' ' )D1 Field Investigator(s): Ken Sargent - Date: March 10. 1995 Project/Site:Whispering pines State:WA County: King Applicant/Owner: Nancy Bennett Plant Community#/Name:Upland Pasture Note:If a more detailed site description is necessary, use the back of data from or a field notebook. Do normal environmental conditions exist at the plant community? Yes X No (If no, explain on back) Has the vegetation, soils, and/or hydrology been significantly disturbed? Yes No X (If yes, explain on back) Indicator Indicator Dominant Plant Species Status Stratum Dominant Plant Species Status Stratum 1. Clover FACU HERB 11. 2. Kentucky bluegrass FACU HERB 12. 3. Dandelion FACU HERB 13. 4. 14. 5. 15. . 6. 16. 7. 17. 8. 18. 9. 19. 10. 20. Percent of dominant species that are OBL, FACW, and/or FAC: 0 % Is the hydrophytic vegetation criterion met? Yes No X Rationale: Most of the dominant plant species,are Facultative Upland (FACU) plant species. species. • Series/phase: Indianola Subgroup. Gravelly silt loam Is the soil on the hydric soils list? Yes No x Undetermined Is the soil a Histosol? Yes No x Histic epipedon present? Yes No x Is the soil: Mottled? Yes No x Gleyed? Yes No x • Matrix color: 10YR 3/3 Mottle colors: None Other hydric soil indicators:None Is the hydric soil criterion met? Yes No X Rationale: Does not meet the hydric soil criteria the ground surface inundated? Yes No X Surface water depth: Is the soil saturated? Yes No X Depth to free-standing water in pit/soil hole: List other field evidence of surface inundation or soil saturation: Some surface ponding on compacted soils, less than 0_5 inches deep. Is the wetland hydrology criterion met? Yes No X Rationale:Soil was even.though the site visit was preceded several days of rain and a small area of surface ponding occurred nearby. NALE ><4< '>»<< '>< {<s>> iiiig >o :::::::::::::;;>:<.>:.;:.;:.::<:::>::>:; :<.:::::;<>:>:.;:.:<>:::;.:.;::. ...: :. .;:,::.(yi�AT�<'I7�ET:ERMINAT ON...t�NI�..Ii�TI. .N. .....:.�:::....:............ Is the plant community a wetland? Yes . No X Rationale for jurisdictional decisions: Area lacked wetland hydrology, hydric soils and hydrophytic vegetation. • This data form can be used for the Hydric Soil Assessment Procedure and the Plant Community Assessment Procedure. 2 Classification according to "Soil Taxonomy." DATA FORM • ROIL 1E ONSITE DETERMINATION MEI' 1DI Field Investigator(s): Ken Sargent Date: March 10. 1995 Project/Site:Whispering pines • State:WA . County: King Applicant/Owner.Nancy Bennett Plant Community #/Name:Wetland By flag A-2 Note: If a more detailed site description is necessary, use the back of data from or a field notebook. Do normal environmental conditions exist at the plant community? Yes X No (If no, explain on back) Has the vegetation, soils, and/or hydrology been significantly disturbed? Yes No •X (If yes, explain on back) Indicator Indicator Dominant Plant Species • "Status Stratum Dominant Plant Species Status Stratum 1. Black cottonwood FAC TREE 11. 2. Red alder FAC TREE 12. • . 3. Salmonberry FAC • SHRUB 13. 4. Big-leaf maple FACU TREE 14. • 5. 15. 6. 16. 7. 17. 8. 18. 9. 19. . 10. 20. . -Percent of dominant species that are 013L, PACW, and/or FAC:75 To :Is the hydrophytic vegetation criterion met? Yes X No • Rationale:Most of the dominant plant species are Facultative (FAC) plant species except for one individual big-leaf • maple on a hummock. Note: skunk cabbage, vine maple and lady fern were found in other parts of the wetland. .............................. Series/phase: Indianola Subgroup. Gravelly silt loam Is the soil on the hydric soils list? Yes No x • Undetermined Is the soil a Histosol? Yes No x Histic epipedon present? Yes No x Is the soil: Mottled? Yes No x Gleyed? Yes No x Matrix color: 10YR 3/1 Mottle colors: None Other hydric soil indicators: low chroma soil Is the hydric soil criterion met? Yes X No Rationale: Low chroma soils meet the hydric soil criteria. Is the ground surface inundated? Yes - No X Surface water depth: Is the soil saturated? Yes X No Depth to free-standing water in pit/soil hole: 12 inches . List other field evidence of surface inundation or soil saturation: Ponding water in most of wetland . Is the wetland hydrology criterion met? Yes X No _ Rationale:Soils saturated to the surface. ;;::;::; .lIIRISDICTTONATIJE:TERMIN4TI00ANI�.RATI(yNAL ...,:M.::::::::.::..:. : the plant community a wetland? Yes X No Rationale for jurisdictional decisions Area had all three major wetland characteristics: wetland hydrology, hydric soils and hydrophytic vegetation. This data form can be used for the Hydric Soil Assessment Procedure and the Plant Community Assessment Procedure. 2 Classification according to "Soil Taxonomy." DATA FORM RO1' 4E ONSITE DETERMINATION ME'" ')D1 Field Investigator(s): Ken Sargent Date: March 10, 1995 Project/Site: Whispering pines State:WA County: King Applicant/Owner. Nancy Bennett Plant Community#/Name:Upland BY flag A-2 Note:If a more detailed site description is necessary, use the back of data from or a field notebook. Do normal environmental conditions exist at the plant community? Yes X No . (If no, explain on back) Has the vegetation, soils, and/or hydrology been significantly disturbed? Yes No X (If yes, explain on back Indicator Indicator Dominant Plant Species Status Stratum Dominant Plant Species Status Stratum 1. Black cottonwood FAC TREE 11. 2. Himalayan Blackberry FACU SHRUB 12. 3. Privet UPL SHRUB 13. 4. Creeping Buttercup FACW HERB 14. 5. Salmonberry FAC SHRUB 15. 6. English Holly UPL SHRUB 16. 7. 17. 8. 18. 9. 19. 10. 20. Percent of dominant species that are OBL, FACW, and/or FAG 50 Is the hydrophytic vegetation criterion met? Yes No X Rationale:Most of the dominant plant species are Facultative Upland (FACU) or Upland (UPL),plant species, with only one Facultative wetland (FACW),species. 7 ; ': ::i: ':i':::':r::i:ri::' ...........:.:.........................:......... Series/phase: Indianola Subgroup. Gravelly silt loam Is the soil on the hydric soils list? Yes No x Undetermined Is the soil a Histosol? Yes No x Histic epipedon present? Yes No x Is the soil: Mottled? Yes No x Gleyed? Yes No x Matrix color. 10YR 3/3 Mottle colors: None Other hydric soil indicators: None Is the hydric soil criterion met? Yes No X Rationale: Does not meet the hydric soil criteria • .......:..... the ground surface inundated? Yes No X Surface water depth: Is the soil saturated? Yes No X Depth to free-standing water in pit/soil hole: List other field evidence of surface inundation or soil saturation: Is the wetland hydrology criterion met? Yes No X Rationale:Soil was even though the site visit was preceded 1 several days of rain. t�:•'v•'�•,4\:ii:::;?;i:::::::;:;;::;?:yt;+:::; :{?i::ij;::i:i:::::i::}:ii:•,'{t:'i • iitiisii:iiiiiiiTiiiiiiiiiiiiiiiiiiiiiiii::ti:�i:ii:}:i:i::i::i: ::i:::tii::i::i::i+:i:}:i?:::i'i:::'i':�:i:ii+isisi'v+:j^:tii:;iiisisi::iiiijt::::ii::i::::iii:::Fi:Y i};.}:}::viiiii:vi{:4i:{iL}};i::iiiii:?tryii:C4iiiii:4+i};:p}:{i•}iii:•}:L:{CC•iiiiiS:v}:•ii:iG:{�:•i::i6::v:i;:.�:::::::.�::: :}:•i:{X??ijj};i::•ii:{:%iv:+i.'•};'v;S::LS:•:�ii::ii:J:i{>.:ii:i{::Ci:}i:::•:::.:...:....:..,::y..:...::.:::.::•..i'.:.'..;:.:::�.�:....::.....Y:ti.:::::.::.n:::::......::v..::::.iv.n�:::i:"i::'.i':..:::::.:::: the plant community a wetland? Yes No X Rationale for jurisdictional decisions: Area lacked wetland hydrology, hydric soils and hydrophytic vegetation. This data form can be used for the Hydric Soil Assessment Procedure and the Plant Community Assessment Procedure. 2 Classification according to "Soil Taxonomy." NE Fidelity National Title Company of Washington Underwritten by Fidelity National Title Insurance Company 3500 188th Street SW #300 Lynnwood, Washington 98037 (425) 771-3031 / 527-1432 Fax No. (425) 224-0837 Direct Line (425) 640-3508 / 640/3505 Toll Free: 1-800-776-3021 ** THIRD ** SHORT PLAT CERTIFICATE TO : NANCY BENNETT 2612 JONES AVENUE N.E. RENTON, WA 98056 Attention : -- Your Number : -- Reference Name: BENNETT, NANCY OUR NUMBER 142972 Charge : No charge Sales Tax: - 0 - CERTIFICATE FOR FILING PROPOSED SHORT PLAT Dear Sirs: In the matter of the above described Short Plat submitted for your approval , this Company has examined the records of the County Auditor and County Clerk of King County, Washington, and from such examination hereby certifies that: TITLE TO the following described land is vested in: N0p1/16- 1 TOM MORRIS NEWBOLD and MARLENE R. NEWBOLD, husband and wife as t Parcel 1 9/1ca1"^) AND NANCY P. : ►►. 4 , who appears of records NANCY V. BENNETT, as her separate estate, as t, 'ar el s ar Pre-el eye/ �a � l a3 -(-- fette ,t Ald THE LAND is situate in said King County, and is described as follows: See Attached - Pages 2 and 3 FlEpEIVED SEP 1 1 1997 DEVELOPMENT PLANNING CITY OF RENTON Fidelity National Tit ompany of Washington Short Plat Certificates, i"age 2 Our Number 142/972 LEGAL DESCRIPTION: Parcel 1: That portion of Tracts 275 and 276 of C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, according to the plat thereof recorded in Volume 11 of Plats , Page 82, records of King County, Washington, described as follows: Beginning at the Southwest corner of Tract 275; THENCE North 00°33'45" East 60.48 feet along the East line of Jones Avenue to the beginning of a curve to the right having a radius of 20.00 feet; THENCE along said curve through a central angle, 89°34'02" an arc length of 31.26 feet; THENCE South 89°52'13" East 94. 15 feet; THENCE South 00°33'45" West 80.05 feet to a point on the South line of Tract 275; THENCE South 89°59'33" West, 114.00 feet to the point of beginning; (ALSO KNOWN AS Lot 1 of City of Renton Lot Line Adjustment No. LLA-010-86 recorded under Recording No. 8609229011) ; Situate in the City of Renton, County of King, State of Washington. Parcel 2: A portion of Tracts 276 and 277, C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, according to the Plat thereof recorded in Volume 11 of Plats, Page 82, in King County, Washington, and portion of vacated County Road No. 174 which would attach by operation of law, being more particularly described as follows: Beginning at the Northwest corner of said Tract 277; THENCE South 89°43'59" East, 114.44 feet along the North line thereof; THENCE South 0°33'45" West 94.40 feet; THENCE North 89°52'13" West 94.29 feet to the beginning of a curve to the right having a radius of 20.00 feet; THENCE along said curve through a central angle of 90°25'58" an arc distance of 31.57 feet to a point on the East line of Jones Avenue; THENCE North 0°33'45" East 74.52 feet along said line to the point of beginning. (ALSO KNOWN AS Lot 2, City of Renton Lot Lines Adjustment No. 010-86 recorded under Recording No. 8609229011. ) Situate in the County of King, State of Washington. Fidelity National Tit ompany of Washington Short Plat Certificate, rage 3 Our Number 142/972 LEGAL DESCRIPTION (continued): Parcel 3: That portion of Tracts 255, 256, 257, 275, 276, and 277 of C.D. HILLMAN'S LAKE WASHINGTON GARDEN OF EDEN DIVISION NO. 4, according to the Plat thereof recorded in Volume 11 of Plats, Page 82, records of King County, Washington, described as follows: Beginning at the Northwest corner of Tract 277; THENCE South 89°43'59" East 114.44 feet along the North line of said tract to the true point of beginning; THENCE continuing South 89°43'59" East 517.18 feet; THENCE South 0°34'06" West 221.97 feet to a point on the South line of said Tract 255; THENCE South 89°59'33" West 517.62 feet along the Southerly line of Tracts 255 and 275; THENCE North 0°33'45" East 80.05 feet; THENCE North 89°52'13" West 94.15 feet to the beginning of a curve to the left having a radius of 20 feet; THENCE along said curve through a central angle of 89°34'02" , having an arc length of 31.26 feet to a point on the East line of Jones Avenue; THENCE North 0°33'45" East 90 feet along said line; THENCE on a curve to the left having a radius of 20 feet and from a tangent bearing South 0°33'45" West through a central angle of 90°25'58" having an arc length of 31.57 feet; THENCE South 89°52'13" East 94.29 feet; THENCE North 0°33'45" East 94.40 feet to the true point of beginning. (ALSO KNOWN AS Parcel 3 of City of Renton Lot Line Adjustment No. 010-86, recorded under Recording No. 8609229011. ) Situate in the County of King, State of Washington. Fidelity National Tit Dmpany of Washington Short Plat Certificates, , age 4 Our Number 142/972 SUBJECT TO the exceptions shown herein. No search has been made as to the taxes and assessments. THIS CERTIFICATE shall have no force or effect except as a basis for the Certificate applied for. Records examined to August 5, 1997 at 8:00 A.M. By: Bill Fisher, Title Officer Tonya Wiseman, Title Officer Barbara O'Neill , Assistant Title Officer (425) 771-3031 / From Seattle 527-1432 • FAX 527-9240 or 224-0837 Fidelity National Tit ,ompany of Washington Short Plat Certificat,; gage 5 Our Number 142/972 EXCEPTIONS 1. GENERAL TAXES PAYABLE AFTER FEBRUARY 15TH: THE FIRST HALF TAXES ARE DUE PRIOR TO MAY 1ST; THE SECOND HALF TAXES ARE DUE PRIOR TO NOVEMBER 1ST: Year: 1997 Amount Billed: $2,248.66 Amount Paid: $1,124.33 Amount Due: $1,124.33 Tax Account No. : 334390-2845-06 The above amount DUE is a total of the following charges: General Taxes: $1,123.70 Conservation: $ 0.63 Levy Code: 2100 Value of Land: $56,000. 00 Value of Improvements: $106,000.00 Affects: Parcel 1 2. GENERAL TAXES PAYABLE AFTER FEBRUARY 15TH: THE FIRST HALF TAXES ARE DUE PRIOR TO MAY 1ST; THE SECOND HALF TAXES ARE DUE PRIOR TO NOVEMBER 1ST: Year: 1997 Amount Billed: $2,498.37 Amount Paid: $1,249.18 Amount Due: $1,249.19 Tax Account No. : 334390-2840-01 The above amount DUE is a total of the following charges: General Taxes: $1,248.56 Conservation: $ 0.63 Levy Code: 2100 Value of Land: $56,000.00 Value of Improvements: $124,000.00 Affects: Parcel 2 3. GENERAL TAXES PAYABLE AFTER FEBRUARY 15TH: THE FIRST HALF TAXES ARE DUE PRIOR TO MAY 1ST; THE SECOND HALF TAXES ARE DUE PRIOR TO NOVEMBER 1ST: Year: 1997 Amount Billed: $1,541.14 Amount Paid: $ 770.57 Amount Due: $ 770.57 Tax Account No. : 334390-2064-00 The above amount DUE is a total of the following charges: General Taxes: $769.94 Conservation: $ 0.63 Levy Code: 2100 Value of Land: $95,000.00 Value of Improvements: $16,000.00 Affects: Parcel 3 Fidelity National Tit ompany of Washington Short Plat Certificate, rage 6 Our Number 142/972 4. CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-85, AND THE TERMS AND CONDITIONS THEREOF: Recorded: October 18, 1985 Recording No. : 8510189001 5. CITY OF RENTON LOT LINE ADJUSTMENT NO. 010-86, AND THE TERMS AND CONDITIONS THEREOF: Recorded: September 22, 1986 Recording No. : 8609229011 6. EASEMENT AND CONDITIONS CONTAINED THEREIN, AS GRANTED BY INSTRUMENT: Recorded: September 26, 1986 Recording No. : 8609260997 In Favor Of: Puget Sound Power & Light Company, a Washington corporation Purpose: Underground electric transmission and/or distribution system Affects: Parcel 2 7. Agreement whereby the hereinafter named owner agrees, in receiving a permit for the temporary connection of said premises with the following described utility, not to protest the construction of a permanent utility that will regularly serve the property or the assessment that will be levied against the property for its construction. Said Agreement shall be a covenant running with the land and binding upon all parties, and their heirs and assigns, until the permanent utility to serve the above described property has been constructed and the assessment roll certified for collection. Utility: Sanitary sewer extension Location: Jones Avenue NE in the 2600 Block In Favor Of: The City of Renton Owner: Nancy Bennett Recorded: April 9, 1987 Recording No. : 8704091076 Affects: Parcel 2 8. EASEMENT AND CONDITIONS CONTAINED THEREIN, AS GRANTED BY INSTRUMENT: Recorded: April 9, 1987 Recording No. : 8704091075 —Purpose: Utility easement Affects: Parcel 3 9. CITY OF RENTON ORDINANCE NO. 4362. AS FOLLOWS: An ordinance of the City of Renton, Washington, establishing an assessment district for sanitary sewer service in a portion of the Kennydale Sub-Basin and establishing the amount of the charge upon connection to the facilities. Affects: Parcel 1 Fidelity National Tit. 'ompany of Washington Short Plat Certificate, rage 7 Our Number 142/972 10. DEED OF TRUST AND ADDITIONAL ADVANCES, IF ANY, AND THE TERMS AND CONDITIONS THEREOF: Grantor: Tom M. Newbold and Marlene R. Newbold, husband and wife Trustee: Commonwealth Title Company Beneficiary: U.S. Bank of Washington, national association Original Amount: $15,000.00, plus interest Dated: May 18, 1989 Recorded: May 26, 1989 Recording No. : 8905260705 Affects: Parcel 1 11. DEED OF TRUST AND ADDITIONAL ADVANCES, IF ANY, AND THE TERMS AND CONDITIONS THEREOF: Grantor: Nancy P. Bennett, who acquired title as Nancy V. Bennett, an unmarried woman, as her separate estate Trustee: Lawyers Title Company Beneficiary: Mortgage Title Company Original Amount: $62,000.00, plus interest Dated: May 19, 1993 Recorded: May 25, 1993 Recording No. : 9305250723 Affects: Parcel 2 THE MORTGAGEE'S/BENEFICIAL INTEREST HAS BEEN ASSIGNED: To: Mellon Mortgage Corporation, a Colorado Corporaiton Recorded: September 16, 1996 Recording No. : 9609160784 12. DEED OF TRUST AND ADDITIONAL ADVANCES, IF ANY, AND THE TERMS AND CONDITIONS THEREOF: Grantor: Tom Morris Newbold and Marlene R. Newbold, husband and wife Trustee: Chicago Title Insurance company Beneficiary: Empire of America Realty Credit corp. , a New York corporation Original Amount: $130,000.00, plus interest Dated: July 1, 1993 Recorded: July 12, 1993 -Recording No. : 9307120413 Affects : Parcel 1 Rerecorded: March 16, 1994 Recording No. : 9403162283 THE MORTGAGEE'S/BENEFICIAL INTEREST HAS BEEN ASSIGNED: To: Source One Mortgage Services Corporation, a Delaware corporation Recorded: December 12, 1995 Recording No. : 9512120072 Fidelity National Tit ompany of Washington Short Plat Certificate, rage 8 Our Number 142/972 13. The effect of Quit Claim Deed dated April 27, 1993 recorded December 16, 1993 under Recording No. 9312162545, Nancy Bennett as the grantor and Ben's Dozer Services, Inc. as the grantee. We are unable to determine what property is being conveyed, as the legal description contained therein is erroneous in that it does not continue back to the true point of beginning. Said Quit Claim Deed should be corrected and re-recorded. • 14. Right, title and interest of Ben's Dozer Services Inc. as disclosed by Quit Claim Deed recorded December 16, 1993 under Recording No. 9312162545 and the King County Assessors tax rolls. 15. A legal description was not included in the application for Title Insurance. The legal description contained herein was taken from the record and the presumed intention of the parties to the transaction. Said description must be examined and approved by all parties prior to closing. Affects: Parcel 3 END OF EXCEPTIONS THANK YOU FOR YOUR ORDER IF WE MAY BE OF FURTHER ASSISTANCE, PLEASE GIVE US A CALL NE Fidelity National Title Company of Washington Underwritten by Fidelity National Title Insurance Company 3500 188th Street SW #300 Lynnwood, Washington 98037 (425) 771-3031 / 527-1432 Fax No. (425) 224-0837 Direct Line (425) 640-3508 / 640/3505 Toll Free: 1-800-776-3021 TO: NANCY BENNETT 2612 JONES AVENUE N.E. RENTON, WA 98056 Attention : -- Your Number : -- Reference Name: BENNETT, NANCY Order No. : 142972 Thank you for giving us the opportunity to serve you. We appreciate your business and will strive to merit the confidence you have shown in us. Enclosed: THIRD SHORT PLAT CERTIFICATE DOCUMENT COPIES Please call us whenever we can be of further assistance. DATED: AUGUST 8, 1997 FIDELITY NATIONAL TITLE COMPANY OF WASHINGTON ( - - itl ` 'l TR.y. IzI *N.. , x ,:. 54 • K ING COUNT " PARK a RECREAT I C : .. .• 3, 40 %,A; :•Igt Y1'5.1::3‘..'"' ,5f*,,,' ,,,,,,..,,,... 1 f N 1.... . . . ,,• (". 1,i' .±E-__ , .•' . 49 Is:I sp:. • ... r.x7„...lit .. . ; . • •,. ,- .(:..100 1.11.17..,!7‘c.likj s @ ---\.............11 • 9 .., .._,Ic _ ,,..., %%,.,,,,, s.. . t 7 ... 3u cOs'f . •,' g al ,F,„ g ..0,,,,,s, ..,.‘3. , ,,,' _ D „1\1 ..,,.. ' X 'il i3 M 11:.)_4g k• -11 '''''' &4 ..; ••• , , „ e -17 < ''0 S. ,e -"-<" 4 C _,..,...1..R. 7 i:.mm,...,4-..riL: ,:.!:,.7... ...,,,,,,, i I zz., .b., . 15.,„ •09 .1.s.H6 ,..., 51 i 2 ..,:,,,9..,4 4.V a'. , s 8(95,i%,""::::::E,67 \2?9'.....-. .1-.. . c. NI 1,L L ,..."•,.- M_•", iSfiteri .,. . . El2 ,!ti i:_____11:(.41 t •fi si... . I 4,'",.„04., .,,,;''.. 1 "-' .1.-•.• er • 228TH 2 Itt::;11:2r84,, ' .', -.: ,,,:e1.: \A‘ ,m g E.S sA E • - '"-- '•-• ' - ”"' -.'; !! , • .,,u;.0, !,.,;,' ,..:, :::, . 50 •55 '''''' I'10 . 9 IS 8 7 7 2 6 ..i9 ...•, '•2 ; , r.,g ii ' : • 61,1 1503 - . a no. -7.,'.7.,0-O.- . - .., .•: ! • : '---- 8T-H -1.---'-.'-• T.2:-•-.; 1 •1-L•1'41E4.--28TH-J5?-1.9'••-• -t- ,:',_:•-•.-•- -- -.."'r• 41 ,'• •,- - , " ..r.--•'' ',",n-----, s .. , . , ic,„ r___, fill,,,ro rt• ,,er 01-3T1. pi i LE2 LEd ., El J c i-,! M mg: .: '1o. 4, '-. I ' 445'n..."' t '" i ''' '141.,;' . )4c,at • 'a 9 nE1' ..° 249 6.y.53.1.-2 OIL, -7;1-- .7.1• ' .' .".i 1-44- '" --it-4, A ims „,.... i.,,,,, ' 2 : 02-_-_-•:_i_-: 2f 5-a.)25-tfah''-1-7".,sk- , ' '''' - )1 il L'"!,::1 11PA -4P 1 zir '171-- ----9'___- - : .r z, At, q , ... .: , , : a • Eli Ei .1. „„„ : ,• 1 iP3:11,,,I I,. . t 0 a: 3 (21 13/ 27 :.,- / I/ 1 11 ' il:L- L• '13g1 '-------" ,,2 ,,. 'V'ii:""".•1216 'h. Wil 35,"3.17."72•:45.' ill '.'f'• '''' 12/'5 al I Pf•11' ' 2..5.:1!UZ i .. . (A, 83E1 5 P.P1 2 3 1 L 1 7 1 '.." 26 t 7 1:325 Lo s , (6) a ..:-..;. ,276 14.5 . 1 ' ' tc- •=7.:r-.-X171-r 9. 2 0, i . 1.0 . 2 . :. 56‘71-'91-••° tl 1 1 . .,- : ,„, 1 '''''El) ,t„,s , r . wt2trf. 4., .• .: 693,16 ''''' 2 .. •, 1 '' 1 s.., 25P. 8- . : At. ,1,1 ,,7i• am. .,:, .,,::..,. -,;,,,,,, 1 fC/ .'-• N5 ..: r° 3.1.,26TH ST .--D---,;-F-1i.4-.zv---erV8r'1=.'P-.l.:'•E7'l-z_4,..:,u;*-k.1;11 :,• ,,7-. 7"' '4aP-1 1,..,- •:*-. 1=.IZ,E•EI?3f-'..5.;',.,•V0.-,i „, . 5, / l015 NE PL IL ' • 254.'2is00 z k.,52P"L"025L 4P_1 2 L ,: : : 6 7 E24Z Z 26 , 6 1: , 7 . 5 e5 . • , zfl •PG?, IC Li - a 25 al P .,. , 1[• 2_ zry 2 . .. c Is 2041L. 1 '',., '•-•6 2 -5•16.3.." - • ' 441 i ;-,,i 'i; 2.Eal. ,, INN NveE5e2 i (71 I , 28 •Y, .' ,i:,.,510 f6-,&Lu 2 .96(2,,2,0019.80 q:: ''S g Cr ;291i C 0 43 i•-•:, ,‘'id ' 24:1 '35626:t 2: .....4(i*..012,10 .. 14-'a ga LU•5. 2 Vet' C .- ..," (c).; -.• 0,4, La 7•L• . -- ••'FE ,-, - - •.•.,45. 281 r:1".2H 'aL So t• I•Y (NZ- 2 SP rie 0.3 1.1.1 Ili: ::.;"222.--7-: .. ,,,..-&-ir—— r. r240. uj .. 1_ .m.o.., 0 •, IA/ (21)ra Z° bi 3......,.: ;:::::::.-13 -ir 1€1 QI:111] );g i-: ' I .faZA0,[b 11 i '-' .t x , _..1 •F. ,k 91.0 11901/479 f99 8/09 en, . ,411 , ,‘ P 4- ••.,....C..; 4,24TH ST. R §1 UV um 4 T _ 24TH „I is 2\I, ,• 35 e.35/54 316 I ,-Ir, " :11;":1r 1 tr •••,:::e..! ,..„ „n7,7,4o i oSeq,,,,,_v.,.• 332 % : '..• .:',- . EP:1 ,6 11 rES31,41 - 3 r.:.-b, al 4 1111 V' illg--1 - ...Z‘C9 ' ,ali`k II] '''1 • I, --w- I.1,I; 9 - 11-1. ES . „,Ams 1 , 242 ^ 2 9 • ____ 3 ,;.3 :3 .. •. ..-2_.-:-r„,-'2,€330--,.-.5-.. --) 1 25 _..LO''A 87',d ZO5 4,e: •I; - % ,- .,. ...'— ,, • . • • • • • ( ,... RECE1VEn SEP 1 1 1397 DEVELOPMENT PLANNING CITY OF RENTON 1 **************************************************************** City of Renton WA Reprinted: 10/16/97 13 :35 Receipt **************************************************************** Receipt Number: R9705802 Amount: 2 , 521. 76 09/11/97 10 :34 Payment Method: CHECK Notation: #1007 BENNETT Init: LN Project #: LUA97-135 Type: LUA Land Use Actions Parcel No: 334390-2840 Site Address : 2612 JONES AV NE Total Fees : 2 , 771. 76 This Payment 2 , 521. 76 Total ALL Pmts : 2 , 771 . 76 Balance: . 00 **************************************************************** Account Code Description Amount 000 . 345 . 81. 00 . 0007 Environmental Review 500 . 00 000 . 345 . 81. 00 . 0008 Prelim/Tentative Plat 2, 000 . 00 000 . 05 . 519 . 90 .42 . 1 Postage 21. 76 **************************************************************** City of Renton WA Reprinted: 09/11/97 10 :44 Receipt **************************************************************** Receipt Number: R9705802 Amount: 2, 521. 76 09/11/97 10 :34 Payment Method: CHECK Notation: #1007 BENNETT Init: LN Project #: LUA97-135 Type: LUA Land Use Actions Parcel No: 334390-2840 Site Address : 2612 JONES AV NE Total Fees : 2, 521. 76 This Payment 2 , 521 . 76 Total ALL Pmts : 2, 521. 76 Balance: . 00 **************************************************************** Account Code Description Amount 000 . 345 . 81. 00 . 0007 Environmental Review 500 . 00 000 . 345 . 81. 00 . 0008 Prelim/Tentative Plat 2, 000 . 00 000 . 05 .519 . 90 .42 . 1 Postage 21 . 76 Ai • • • • ADD 1 2 4 . • 0.3670 cfs 0.1599 ac-ft 7.83 hrs REMARK NOW THE SUB-BASINS HAVE TO BE UPDATED FOR THE 100 YEAR STORM FOR A HYDROGRAPH RUN THROUGH THE CATCH BASIN SYSTEMS, THE HYDROGRAPHS ARE THEN ADDED TOGETHER .TO PROVIDE THE 100 YEAR IN HYRDROGRAPH FOR THE LEVEL POOL ROUTING TABLE. • LSTEND • CHANGE DESCRIPTION "100 yr. East Basin CB 1,3 & 4" CHANGE-PRECIP 3.90 • cbl.dev cb3.dev cb4.dev LSTEND • ZERO 1 2 • ROUTE HYDROGRAPH 1 THROUGH REACH.west • Network west • Reach <AREA> <Act Q> <Q Full> % Full Ndepth. <Diam> <NVel> <FVel> Carea cb3 0.60 i 0.23 4.16 5.50 1.98 •12.00 2.70 4.93 cb3.dev • cbl 0.95 0.36 4.16 8:73 . 2.48 •12.00 3.09 4.93 .cbl.dev ROUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO • • Reach -Area- --Qact-- --QFull- %Full Ndepth--Dia- -Vact- -Vfull Basn cb4 0.42 0.19 4.16 4.61 1.82 12.00 2;56 4.93 cb4.dev ADD 1 2 5 • 0.5555 cfs 0.2416 ac-ft . 7.83 hrs • • REMARK NOW THAT THE THREE FREQUENCY IN HYDROGRAPHS HAVE BEEN CALCULATED WE CAN NOW RUN THE LEVEL ROUTING TO SIZE THE ORIFICES AND CALCULATE THE ELEVATIONS AND STORAGE REQUIREMENTS FOR THE THREE DESIGN STORMS. LSTEND LPOOL 1 "2 year" 0.020000 3 wspn wspn 6 • Description MatchQ PeakQ Sto Dis • • PkStg OutQ hyd Volu 2 year 0.02 0.25 wspn .wspn 253.22 0.02 6 3,26 Z LPOOL 2 "10 year" 0.050000 4 wspn wspn 7' Description MatchQ .PeakQ Sto• • Dis PkStg OutQ hyd Volu 10 year 0.05 0.37 wspn • wspn 253.79 0.02 7 5791 LPOOL 3 "100 yr" 0.17Q000 5 wspn wspn 8 • Description MatchQ PeakQ Sto Dis PkStg OutQ hyd Volu 100 yr 0.17 0.56 wspn wspn 254.35 0.05 8 88324 End program file D:\BNNT-0-1\CALLS\WSPN.pgm • . • • • • 14 • TABLE OF CONTENTS :`s:' ITEM PAGE I. Project Overview TIR Worksheet 1 Location 2 Existing Site Conditions 2 Proposed Development 2 Site Development 3 Utilities 4 Vicinity Map 5 II. Preliminary Conditions Summary Basin Analysis Existing Basin 6 Developed Sub-basins 6 Soils 6 King County SCS Map 7 III. Offsite Analysis East Basin Offsite Analysis (Exhibit II) 8 West Basin 8 • West Basin Offsite Route Map 9 IV. Retention/Detention Analysis Special Requirements Analysis 10-11 Existing Site Hydrology 11 East Basin 11 West Basin 12 Developed Site Hydrology East Basin 12 West Basin 12 Hydrologic Analysis 12 Retention/Detention System Analysis 13 Existing Basin Analysis East Basin 13 West Basin 14 • Detention System Design 14 Developed Sub-basin Analysis West Basin 14 East Basin 15 V. Conveyance System Analysis 15 • TABLE OF CONTENTS '" • ITEM PAGE. VI. Special Reports and Studies 15 VII. Basin and Community Plan Areas 15 Not Applicable for Preliminary Plat VIII. Other Permits- 16 IX. Temporary Erosion and Sedimentation Control Analysis 16 X. Bond Quantity Worksheet, 16 Retention/Detention Facility Summary Sheet and Declaration of Covenant XI. Maintenance and Operations Manual 16 APPENDIX: Storm Drainage Calculations Natural Basin Discharges Developed Sub-basin Discharges East Basin Detention Model Program Storage and Discharge Structures East Basin Detention Model Results East Basin Detention Model Results w/Residence Infiltration. Exhibit I-A - Natural Basin Map For Area I-B - Site Existing Basin Map Exhibit II- Downstream Analysis by Lance Y.K.Gyotoku,P.E. Exhibit III-Developed Sub-Basin Map Page 2 of 2 • King County Building and Land Development Division TECHNICAL INFORMATION REPORT (TIR) WORKSHEET 1-ART 8 DEVELOPMENT LIMITATIONS •.• . • REFERENCE LIMITATION/SITE CONSTRAINT El Ch.4-Downstream Analysis N0n/ ' Cl 0 El 0 a (--I Additional Sheets Attatched . PART 9 ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION FOLLOWING CONSTRUCTION • ® Sedimentation Facilities El Stabilize Exposed Surface K1 Stabilized Construction Entrance El Remove and Restore Temporary ESC Facilities BJ Perimeter Runoff Control C Clean and Remove All Silt and Debris CI Clearing and Grading Restrictions Cl Ensure Operation of Permanent Facilities CI Cover Practices Cl Flag Limits of NGPES Construction Sequence 0 Other CI Other l'ART 10 SURFACE WATER SYSTEM . . • • 0 Grass Lined Channel El Tank . CI Infiltration Method of Analysis RI Pipe System ®. Vault(\A/ET) 0 Depression S c.S —A 0 Open Channel 0 Energy Dissapator . Flow Dispersal Compensation/Mitigation El Dry Pond 0 Wetland CI Waiver of Eliminate,Site Storage CI Wet Pond CI Stream E Regional Detention / Brief Description ofSystem Operation lac/t�sr Su B-PAS'/N -� IS, T Fc_o 0-11 . ,s a/ A�o �7c-j*[3x+a iJ. £'A-sT 6-jAs.Aj `7OY—AL_ Aft CojArcit'oAii doff-ta-krri a') Facility Related Site Limitations El Additional Sheets Attatched Reference Facility Limitation PART 11.STRUCTURAL ANALYSIS _ ..PART 12:EASEMENTS/TRACTS - i • (May require special structural review) •' El Drainage Easement • ® Cast in Place Vault CI Other El Access Easement • Retaining Wall F=4 Native Growth Protection Easement C Rockery>4'High fl Tract CI Structural on Steep Slope 6ZI Other Sr r3f G,4 -N' J7 • :'ART 14-'SIGNATURE OF PROFESSIONAL ENGINEER. . ' - I or a civil engineer under my supervision have visited the site.Actual site conditions as observed were incorporated into this worksheet and the 'attatchments. To the best of my knowledge the information provided here is accurate. S s'e"''d'D''• . • • ` Pagel of 2 ',:! ='- King County Building and Land Development Division i TECHNICAL INFORMATION REPORT (TIR) WORKSHEET PART'I . PROJECT OWNER AND _ - PART 2 PROJECT LOCATION • • PROJECT ENGINEER , .. AND DESCRIPTION Project Owner NMC y R 13ENNE'H Project Name T LAY OF WffiSPSINa Fill S Address ZCo/2. aoN AVEn/UF_ N.E. Location Phone 4/Z6— Z 5.5— /5410 Township Z 3 N Project Engineer Ro[3er R`I'14. f9 CoNNELL Za. Range 5 C Section NE /y 1 5 Company ENE O•I—b S- G•O.O O P Project Size Z.7 9 AC _ Address Phone 4 ZS-7/2.- 74 8 8 Upstream Drainage Basin Size O.QAC PART 3 TYPE OF PERMIT APPLJCATION • PART 4 OTHER PERMITS 0 Subdivision 0 DOF/G HPA 0 Shoreline Management 0 Short Subdivision 0 COE 404 0 Rockery 0 Grading 0 DOE Dam Safety 0 Structural Vaults 0 Commercial 0 FEMA Floodplain 0 Other El Other -L t M I N Ar 2 Y PLAT 0 COE Wetlands 0 HPA PART 5 SITE COMMUNITY AND DRAINAGE BASIN • . • Community C r 7` `7- O_ r' e e-AT7—On/ Drainage Basin I ' G,. Vi42 0 v42 ' MALI- C/2.E ( AS/A/S . PART 6 SITE.CHARACTERISTICS - • . - • - . • 0 River 0 Floodplain 0 Stream ® Wetlands O• 5 9 Ao, Ci-ASS 21 0 Critical Stream Reach 0 Seeps/Springs , • El Depressions/Swales 0 High Groundwater Table CI Lake 0 Groundwater Recharge . 0 Steep Slopes 0 Other El Lakeside/Erosion Hazard • • • PART 7.SOILS. .. . - - • - : . . . Soil Type Slopes Erosion Potential Erosive Velocities 2vDMNDG•r4 Z -'!o % L-Occ./ '/C/O ( • 0 Additional Sheets Attatched 1. PRELIMINARY- STORM DRAINAGE (TIR) PROJECT OVERVIEW • LOCATION - The Whispering Pines Plat is a 2.79 acre parcel of.land, which lies in the Northwest Quarter of the Northeast Quarter of Section 5, Township 23 North, Range 5 East W.M., and is addressed between 2612 and 2616 Jones Avenue NE, in the City of Renton. The property accesses Jones Avenue Northeast via a one hundred-fourteen foot long and fifty foot wide right of way dedication, which is approximately 105 feet north of the plat location of Northeast 26 Street. The dedication continues another three hundred-eighty six feet to a 50 foot radius cul d sac. The main body of the property is dimensioned 517 feet west to east and 223 feet north to south. EXISTING CONDITIONS - The southwestern portion of the 2.79 acres has been used as a shop, storage and vehicle parking area,with slopes of less than three percent. The north half of the site is pasture for two horses,with slopes of two to six percent. The northeast 0.60 of the site is a proposed NGPE for wetlands and associated 50 foot buffer, with slopes of thirtysixty to percent in the buffer area and slopes of 20% to flat in the wetland area. The remainder of the south half of the site is a pasture/storage area,with slopes of one to five percent to the toe of the fifty percent slope that drops from the neighboring plat of Sunset Hills to the south. The site topography is shown on sheets 2, 3 and 4 of the attached preliminary plat set. As the site topography shows there is no offsite contributions of storm water to the uplands area of the proposed Plat of Whispering Pines. Storm water does flow from the residential properties east and southeast of the site into the wetlands area in the northeast corner of the property. Exhibit I-B shows the existing site natural drainage basin lines. Approximately 0.68 acres of the site discharges to the west, of which 0.17 acres is impervious asphalt driveway, gravel parking area and shop building roof. The east 2.11 acres is split between a proposed 0.59 acre NGPE for a wetland and 50 foot buffer and the remaining 1.52 acres of the site which is all pervious pasture and meadow area. The surficial soils are shown as an Indianola type on the USDA SCS mapping for King County,see Page 5. PROPOSED DEVELOPMENT - The applicant proposes the development of 10 single family lots meeting the requirements of R-8, minimum 5,500 SF lot average, zoning. The proposal includes construction of 500 LF of 32 foot wide street and a 50 foot radius cul d sac, with curb/gutter and sidewalk.The 0.60 acre right of way dedication is being proposed in accordance with City of Renton development conditions and requirements. Site Development - There will be no general site grading. The lot topography will remain, substantially intact except for slope grading for the street construction. Grading for the street will drain lot and street storm waters both east and west in accordance with existing basin discharge requirements. During street construction water, sewer, gas, electricity and telephone utilities will be extended from Jones Avenue Northeast to serve the individual lots. Except for the storm vault construction and sewer utility trenches all grading and construction will be within three feet of the existing ground surface. The street will be paved with curb and gutter, sidewalk and street tree planting strip. The wetland will be flagged and fenced along the outer limit of its buffer during construction to minimize intrusion into the sensitive areas. Prior to final TEE a_Aona mow . 2 acceptance by the City of Renton the proponent shall prepare and record a Native Growth Protection Easement for the wetlands and its buffer. No other mitigation is required. Utilities - The following provide public and franchise utility services for this area of the City of Renton. Public utility provider: City of Renton (Water, Sewer,Refuse, 200 Mill Avenue South and Storm Water) Renton,WA 98055 (253)235-2520 . . Telephone provider: USWest . PO Box 12480 Seattle,WA. 98111 (800)244-1.111 Electricity/Gas provider: Puget Sound Energy 319 South Third Street Renton,WA 98055 (253)382-7858 The Kennydale Sewer district will have a fifteen foot (15') easement along the outside of the wetlands buffer going from the east line of the plat to the north line of the plat crossing Lots 6 and 7. . • • • /*HZ ®o AoIo�o.GROUP 3 1 ''„:,o;• I 9,. t , ' '•''' a z - - str . - ,..-. q 1 , , , til - - 4.,',.----',..)t,,'' AI- :t,:',,c: .,2.— '." :4: ' 7)(A.,-*z-Hw, 11: :'''''L;Izl - , , 1,,,,3 1 7> —:, r:v 4. .. r' ... I ,, , • ..4 , ,,,,, • ^$ , . • -, • •, ,. Al ! I t3f) ; I i—4 / ', '-•••,,, . •,•.• ,;', ,.. —4 Al, C4 -I 4otik f, ti .,z --„, a--,4 .:';•., '1-''- ' iz * -ti' . . . VI 3344 . , a r. 'LI 1i ilt3'°' . - AV 14 FRWY 44430V 1 g i n MY!,4.....1s:- w V it/ p4 iL_I ........._..... ..........— 0 . • t b4 0 a - • Ilk .--3 ft:,,C Av N _AY, Z 41i 0 i:kg01( Ai IC S At -41.4 , ,,\ IM : - j -- "--(C'W ...1Lt:ilL4se'lL:Al: }Et i LINCO — - ....4.t.......1.11k ,z M " rl IE • Zri '4, • i / L:214 ,i, IA i 4 . i k4, q /Dirt 4--:4't1---•4k 7: ,4., iSe -",.., ,• 1,-,"' " 1 ' . *I'ER( --R- ., Z ,r-t-3-*.i -: . I ' 'x , :•• NE r., 1 A Av H M ,. i ', 6 i ''' '‘' 1•4?' •(11 '•-•6 ,..2. I- - -- ,44,014_14 -4 "3 , _ •N6 ,,,, 1 ...„ 4 4-I 0-1 • jroo i, 4 ..,„, , ,,, .. i:•.$ li : . : IN 44 , ::' Co t, Ili 412T1 --- - - -44- ---- 41_4_211_ otatot Atka, ':-; r,) 4 '' 21 i ,o, WIEf ME 0 --J it " ' 41£11 ,i .,..,lif OAY1011 irk). AY 4E ;f I ,f•- i, ' I 1.1 V V t hge IS al I 1 r, Le vt R-..,,at , GI 0 , r —4.. -IA -4 el:zi 1 kj, 0.4 11811 ,..._L- lm - —4 ' IA ,m - •'1 ',;* Y 116Ilit ,-. I, anlz -.. , 1 - ............4'i ii 43,a 4, , tr , __,. -136011- § _ r - iiNd cj ! Fill4D4,LE i 4- • - o, r, . , § 1 rit r- -4 ' ' ''- .17,... iiirro 7 - 4'4, ' i 16 $•-t1.- 47;j61(Pi " •-...). 1 N('-;g1* PRELIMINARY CONDITIONS SUMMARY BASIN ANALYSIS: Existing Basin - The proposed development contributes storm water runoff to two basins, the Cedar River and May Creek, Drainage Basins, as shown in Appendix Exhibit 1-A. It is the intent of the plat design to continue the contributions to both basins. As described in the introduction to this report the site uplands do not act as a collector of off-site drainage flows. As the topography shows the areas south of this proposal are graded to flow south, the areas to the north flow to the north and east, the west is above Jones Avenue and the eastern portion of the site can get flows from only the west. Storm water flows do enter the wetland, a portion of which is located in the northeast portion of site property, from residential areas to the east and southeast of the site. Proposed Sub-Basins - By reducing the developed contribution area flowing west into the Cedar River Drainage Basin the developed site will direct discharge the 2 year,the 10 year and the 100 year design storm events at the same volumes as existing conditions. The west basin will shrink from 0.68 acres of mixed pervious/impervious area to 0.36 acres of mixed pervious/impervious area. The storm water from the west part of the site will not be collected, but will sheet flow into the new street gutter for discharge into the storm system in Jones Avenue Northeast, which drains south and west into the Cedar River. The point of discharge is at the same point as existing conditions. The east basin which drains into the May Creek Drainage Basin will have an larger developed contribution area(existing 2.11 acres, developed 2.43 acres), a combined water quantity/quality mitigation vault,controlled release for the 2 year,the 10 year and 100 year developed conditions design storms, to the following respective discharge requirements, %2 the two year, the 10 year and the 100 year pre-developed release rates. A discussion of discharge requirements occurs in the Retention/Detention Analysis section under the review of Special Requirement No. 1. Drainage from lot structures, driveways and lawn areas on the east part of the site is assumed to flow into the catch basins of the new street by tight line or sheet flow for collection and conveyance. The spreader trench will discharge the east portion of the site at the same location as existing conditions. Exhibits I-B and III show the existing and proposed site drainage basin areas respectively. The exhibits show the overland flow times and distance for existing conditions to point of discharge. Total pre-development and post development discharge flows will be noted for the 2, 10 and 100 year design storms and designed release rates. SOILS: The site soils are shown as an Indianola Horizon on the King County SCS Map, see Figure 2, next page. This classification has been confirmed by the soils analysis provided in the geotechnical report by Earth Consultants. The Indianola Horizon is typified by deep sandy and gravelly loamy soils and high permeability rates. The horizon is similar to and include pockets of Everett Horizon soils. It is listed as a hydrologic Type A soil in the King County Surface Water Design Manual. nig �a o2o GROUT 5 R o. :_,... --. ..'. • '.'' ''1,,,J. ... "F," it:I:to • 4.A .- ig,'t''t • I 4 ,. 1 ‘‘, 1 ..,,E, _ , . ,,,,,._ ). . • , )., .., ,, ,c_7__ . „ . , ,:i • -,_ , . 1.: ..4,..i.f.•.. _, • , . ,I, , ,- - -La, ,,...:. ,. .1144- , xe 4..)1 • , A ' ..;••• ...I-- ' 4- - -1 - '( '' •' Iffp aILZ ��__a-_ ?1•sAI +,',jam •t 1 ipipigiv ra . VD ..fil!- , '4'1•, 05411.., \ ..+,:, !W--.1. *'' • I 1:7 ' I. 1 .: I 4 - 41r-7111 - . frolgtaL ....41011111,11111113M 1,,,:ii4114 ....4"):. -jay t 4 \ ..:: 1 * I ) 111 , , .., .4 _is,. 1 ,,. ...i— es.-- i. ,4r,.. ..... . \-•.. • . , : q \Ctitt,21, ''- ', o • ' ,..rif. . , , 4 14,.,..-7-- ..,-•:- ____:-1----'•-•4;. •• t - .7 ‘s."''':''''-6 t 't ___ I __ 11--..iii ' . 4 AI J 1 , ...v , la el 1 ,I b,• 'I / • I'•I*.a • F*1 • ' • .0et' c ,' ...% r ?, ` --4 I s' •••I I K,► .: agar - 7, •°• ,.� e+n ::.1 /j',-- Ir 7+ ,I•�i . . CO`• °�..• � •'SORT, ,0. • :R Cy SIN*,'o 1 0 ,-,,,,,--, . - ecyckt Q �� w • ✓': - ^' �j li�t• at• ''dry- pyk 'P. ?') C. �A► 1 '1 \ !j R-. A' �Irrr�T`i-�!—_ ��/o iips IG ci) `N1911ti 1i ,__•Mall _1 _ I �• •4• rm-� g, ih...4, ...,.., il ti,7, .._...,..,._.,,,: .... f ._140 • li, if. : it c-ir-- ' -.' •ii • •e��a ' • /Z ,ac , Its L.. r O q%r�1A!+'1'• it:. '� �' 4 r,L Syr • �__ • —� �•iF O o U � . F r� I.i ir 4,' .- . "'••• 'I . :� . i •T alt.-. •lial .a4 .:, fr.i A-` • Nit ii ,, •-4. Jit• • 44r1 I f ,,,b,. , cA - - *.ilkiallifitilar--d-f- - 0-. . _ : ',.„,,,,., ' '. ,•ii; • i • •• #4,_ LI \ ""'•'•''111_Ilib ,.: .[; „iv ; , .• :I: .ice cv ' *.' ,_ ii 1..t4 ;,:ft - j ,_^11 :._-_-•_------'---------_. • - ----7----. -- ' ..t . x, -•r,. 4,77V17. .."."..."W. ‘..... . ...k. i_,,,_-:41_E-- .-. 4. TIU t' il .•'‘' •_•4. ,. ,,... -,, --Nimt .,-! 2..-'2._i . . : .,_ ,...J.4.- .,,,•-•1, .- ., ..„;.........:.-4------- ,... /,,;:il,i,, ,,,. ,,,,,, . I" 1,•, ..uf :-.‘:,,‘ ••t,!_ •i ., . . ..,„: 10,..A. pfo' , :;,,-,., ;.....,---,',....--• ' . ' ' litool ` ‘i•l, (.20 • ' I :I'• • II ` fi:Oi-7' -vr . ' :. It +41 iichlT!.--4.4*- i.....1.4. ' ''' • . ".., ., -• ,.• \� ., mil; „yl {! / ;. w•,.-• ;►J I'. 1 . / , t ..4 fit. . ..� „ ,,.I— ,IW • may' �, 1 �� c •I, Z`c� \ 1 ... t .T 1 S1r r iS v 4 4M ,,f i ,O OFFSITE ANALYSIS DOWNSTREAM ANALYSIS: East Basin - The east basin downstream analysis was performed by Lance Y.K. Gyotoku, P.E. and is included as Appendix Exhibit II. The review by the O.L.D.S. Group found the report to complete and consistent with our observations. West Basin - Storm waters from the west 0.68 acres of the site currently sheet flow from the lawn and pasture, and driveway areas westward onto Jones Avenue Northeast. From there the storm water flows: 0 to 240' Southalong the street east curb and shoulder of Jones Avenue to a catch basin/inlet in the shoulder. 240' to 600' South from the catch basin/inlet in an 8"concrete pipe to an outlet in a ditch on east margin of Jones Avenue. 600'to 700' South in a 1' deep by 1.25' wide ditch that flows down to a catch basin/inlet off the shoulder of the intersection of Jones Avenue and Northeast 24 Street. 700'to 750' West from the catch basin/inlet in an 8"PVC pipe to a Type II drainage control structure on the west curb line of Jones Avenue north of Northeast 24th St. 750'to 970' West from the drainage control structure fifty feet to another Type II locked structure. Continuing west for another one hundred sixty feet to another Type II locked structure from which an 18"PVC pipe discharges to the north. 970'to 1,560' North in an unnamed creek, which measured 2.5' to 4' on the bottom, and 4' to 6' across the top of a 1.5'to 3' deep channel. 1,560' Creek channel enters a large bore pipe for conveyance west under I-405. See next page for flow routing map and stationing. `ll"1H11� OO._doIOa GROUP 7 . . WEST BASIN OFFSITE ROUTING MAP • -7- I-— .-...,_ . —"j— N.,t...r-' EfT Fi-_—ST-tc-•pe-1-4--- .— .—A,,..„...,... ,,..70...r. . . — 171-: • t 01 :1 1 ' f6 ill ,?, (,). . IF. 1 m,,,' :if i ,i . C* A4r:0'e.C. 14,1 . I',le' ev El i 4 — i_r1 _44_ i g i •,- ,4 - t-*. :9- . ' it: .,ii. .i fir , _.__. • .. lir'1 ' 2 7,1 t 2 ki . •:-. • I se • ,i t.. 1 -, N or. -212 . 41 Ii . .-\"•,;,, „ .. t.t , T fil _. _ ...1 ,... ., .1.-:_z_J • , 1111 ,_11. . 1 ISO • 1 •. " - I - .1-98 Tiff ir:.----- , •-.6 . i, „.1.:1,,:l ., N, ., ... . , .,, „ ,,,,, • • 2.7.9 . . • I N 1.. • N.E. 2 TH CT ' '‘ . ' • Eg7: i 1 . ., -• , r ,f1,3-ri f trIrr .; - •- i'-`+--, I • • .. . 278 , -091i • HO • Mil,tols. „2,0 v 1 . kt, , • . . , „ : 0.-.. •y!t;;.,,,,.. ,..• sit„..vtri. :.,. q . afr o 1'1 En : /7/171/11/rii•'',E ,, , ...v.. . ., 0;17., / if //j7 / , _RC ----: ! l si •,17.-.1) , . ft) le 142 r r I ..g! i ..' L• 1752 3 61 • ‘, __P5, ._ _ _ _ i c • (• lr, 0 * I 61,01 5!6- Ili 4 il .11 II,..-1if 41 , 4..I. LI-) :1 . v 1 ',111111111kilt ,',t.., !lit 4 -tr • ' • IZ) . Z _ _'.%., -' j .'I A, • '. !! .t 282 2 f ' • ,, 4,1? 11,5-0.iti• ._i+4.'..•,. • Liiii.,....r „ I I ...__ _ :I-1,1 ,, ..-. ,. • .• ›.-- -8- - --- ----- -- ------ flb 2,io' c-13/ e-ET , , El, ei _"--1-.---4 --- - -- LEGENV Plato TRAT4-i , I En o 1 ,1 1 -• mii . , ,-, i1. • '3 v. 0, ti -• PATH 1...F 1 . . 1 z40._ ;•1 -,„., ---4a7c 1,17 ' . • j/1 '.7.:. 7...e", ' ' I ' ' 141 • . . I V, I, IC[ k 1 t C5 I ?fit,..,T! • 04?I . On lb. - I I , ' • tr) -1' % - • .,‘ Z2\,, u..2 ? ti l I I (..co' Dri4.14 1 1-1-r . • — :--' - - ,toP ..,.-N _ .,. ...' t:11:. •-> , • 1 „pft P"'" 3 Ol I al : r t .N. ' „„,i:° c . rt •`•127.. - I ' 04 .I 1.- -71 . 96 1 /96.J G' 1 t Pr :1• g 2„--... - 24TH ST. •Z '• 1 . ... s:-N.E. , , c.ofita.e7 NE -, _ ,. tr, . p34•a P6 I '51 3 O " I IL • I./k i Hi, , , , I. 1 1E ki 11:',IL.1 • ,i) 1 -z • . , ,,, lo ok, , _ 1 -367--j r:11....0 'I ! . M 1-.. .0 i • , • • • • THE a'Lona GIRCDUIF 8 RETENTION/DETENTION ANALYSIS ' : = REVIEW OF SPECIAL REQUIREMENTS: The City of Renton requires development to meet the standards and requirements of the 1990 King County Surface Water Drainage Manual,which includes seven(7) Core requirements that" must be met,and twelve(12)Special Requirements that must be addressed and mitigated as they apply to the development. The following addresses the Special Requirements providing possible mitigation measures for those that apply to the'proposed project. - • 1. Critical Drainage Area - The site does lie within the designated May Creek Critical Drainage Area, as shown in Exhibit I-A, a portion of the Cedar River Drainage Basin. Approximately 2.43 acres of the proposed development drainage, eighty-seven percent of the. , site, is received by May Creek approximately three-eighths of a mile downstream of the . proposed Plat of Whispering Pines. After reviewing the King County Public Rules for the May -' - ' Creek Critical Drainage Area, Policy 6.4 requiring restricted controlled release from the site • water quantity/quality mitigation vault. The standard requires ''/2 of the two -year pre- development release through the 2 year developed design storm, the.2 year pre-development release through the 10 year developed design storm, and the 10 year pre-development release through the 100 year developed design storm. ' Ft• Comment - The City of has adopted neither the 1995 Edition of the King County Surface Water Design Manual nor the May Creek Critical Drainage Basin. King County Surface Water Management has drafted a new May Creek Basin Plan, which is .going through final review and approval by,all effected jurisdictions, including the City Of Renton. In lieu of the.- current King County policies and the Draft May Creek Basin Plan, the City Of Renton has allowed retention/detention design in accordance with the standard/normal requirements of controlled release for 1/2 the two year, 10 year and 100 year pre development flows. 'The Draft - May Creek Basin Plan currently allows discharge in accordance with the release rates used by: the City of Renton: The city has also allowed use of the standard release if the downstream analysis shows that the channels and conveyances are stable and show no signs or erosion or . over capacity, which the analysis for the east discharge by Lance UY.K. Gyotoku, PE; see Appendix Exhibit II. Policies 6.5 through 6.11 are for process elements that will be complied With during design and ^;,:: =:'.t °'. ` : review of the fmal project plans. Specific elements of some of the policies are addressed Policy 6.6 - Review of the site by the O.L.D.S. Group and Earth Consultants,'.a geotechnical;•. .::'_::'.;,' :. ;', firm, have found no evidence of either topographical or geotechnical features'that would require*,-10.!,_:: " ` a phased installation of the proposed storm water quantity/quality mitigation system...Should be required,a phased plan would be prepared as part of the construction permit submittal..... s-;:-.: a;,d[-r '' Policy 6.7 - The design does.include a flow spreader to discharge the controlled:release.from the detention system. It is placed at the toe of the slope,with a discharge`surface approximately s?a; two feet above the wetland water level. i - ..{t,`.,1.?. ''.`2: - -.•L7`r�'`n,;';:^i'-�["'•"��`�_(•,:.V„`[fit. 'T-a• - f '4 .-fit'. ::r ;Y#.i;; .:r:i':i fir,....t .{;`1 Fr.'..(. h�'<-{„Sr_ ..�.., �.�;,T�;; a�Y,F' l��':`-�5•y.�l ,-.j '.�-'l[:�„4. ��_.:i�.�.'''r.:'e.. ..Y.rV2:f 111H11�_ "74P !;,.QaIR®NIP' ,3 ,f : r . �.•}. , 1-' �-.,�.:, I:• R• - �'�-)��^•�,:iS:h,: .L ="uL .�!' .,y'Y.�:�'$�r�ri•.,r.L't r,N _ yt^YAM Policy 6.8 - This site is in an urban not a rural setting. Policy 6.9 - Clearing for this proposal shall be limited to the right of way area and a single crossing of the wetland buffer area to construct the outlet pipe and flow spreader,approximately 25%of the site area. Special Requirements No.2,3,4,6,7,and 8 -These do not apply as they are for conditions not found on or proposed for this site. 5. Special Water Quality Controls - A wet vault is proposed as part of the site storm drainage system to mitigate special water quality requirements for the point of discharge being a critical area,wetland. 9. 100 Year Floodplain Delineation - The nearest 100 year flood plain is approximately 200 feet below the site in the Cedar River,a half mile away. 10. Flood Protection for Type 1 and 2 Streams -This does not apply as there are no Type 1 or 2 streams on or adjacent to proposed project. 11. Geotechnical Analysis and Report - Is provided per requirements by Earth Consultants. 12. Soils Analysis Report - This is not required as the geotechnical report found soils consistent with SCS mapping. EXISTING SITE HYDROLOGY: The existing site natural basins are shown on Appendix Exhibit I-B, while the developed sub- basins are shown on Appendix Exhibit III. Modeling of existing site basins was competed in accordance with King County Surface Water Design Manual requirements. The proposed conveyance system was used in the modeling of the detention system requirements for this preliminary report, though final design may alter the storm layout. The conveyance system when designed for permit submittal will most likely make very small reductions in the detention volumes. East Basin - The east 2.11 acres, including the 0.59 acres of wetland and buffer, contributes to the May Creek Drainage Basin. The uplands portion of the site contains 0.02 acres of impervious area in the form of a workshop/garage and adjacent concrete pad areas with the remainder,with the remaining 1.50 acres of uplands area being meadow grasses or horse pasture. Storm water from these areas flow across the grassy surfaces with slopes of 1% to 6% to the edge of steep slope dropping into the wetland in the northeast corner of the property. The slopes into the wetland vary from 15%to 66%and show some areas of instability. All flows are sheet • • flow in this area including over the steep slopes, which are generally well vegetated. The site . • soils are of a hydrologic Type A, very permeable and stable. Pervious and impervious runoff curve numbers of 65 and 98 respectively were used to calculate flows for the existing conditions. + .. Our investigation of the site found no offsite areas contributing storm water flows or discharge to the upland areas of this portion of the site. The wetlands do receive flows from residential areas ' • • : r to the east and southeast of the site via contiguous:areas of wetland.adjacent to the northeast corner of Whispering Pines site: _ 10' s- �. � � IP3 ✓f` a o o�a:� ®NIin:�:��:�::-:. . i • e;2'• • West Basin - Storm waters from the west 0.68 acres of the site currently sheet flow from the a' lawn and pasture, and driveway areas westward onto Jones Avenue Northeast. .'A small area,-,.•.. approximately 250 SF from the lawn of a residence to the north of the proposed development' : .. flows onto this portion of the site. The volumes of the offsite flow contribution are - inconsequential for this analysis.,The.same CN curve numbers used for the east basin 65 and 98'e : • for pervious arid impervious areas respectively,same hydrologic Type A soil horizon,:were used to model discharge volumes for this portion of the site. The west basin had 0.14 'acres of ' impervious area in the form of pavedand graveled:driveways, and 0.54 acres of meadow and • -` ' • lawn pervious area. DEVELOPED SITE HYDROLOGY: East Basin - The site has been designed to accept runoff from all'pervious and impervious-" ' surfaces from the 10 proposed lots and the street right of way east of.station 1+80;except for the east 20 feet of Lot 5 and the north 15 feet of Lot 6,which will bypass the collection system. The ' , bypass areas are now and are planned to be pervious areas, either lawn or landscaping:. Total sub-basin area will be 1.84 acres,with 0.87 acres of pervious area and 0.97 acres of impervious; area at maximum coverage allowed by City of Renton Zoning Code. CN values were derived from the King County: Surface Water Design Manual as 98 for • " impervious and paved surfaces, and 65 for lawn and landscape areas." All roof drains are assumed to be tight lined to the nearest street catch basin. All lot driveways and pervious areas will sheet flow to the street for collection,with the exception of Lots'5 and 6 which may require driveway and yard drains to collect the storm water and convey it to the storm collection system. All drainage from the east basin will be detained and,mitigated for water quality using a wet vault. The point of discharge,will be the wetland in the northeast corner of the site, same as existing conditions. West Basin - By reducing the developed contribution area flawing west into the Cedar River,: Drainage Basin the developed site will direct discharge the %z of the 2 year,the 10 year and the• 100 year design storm events at the same volumes as existing conditions,'at the same point of discharge. The west basin will shrink from 0.68 acres of mixed pervious/impervious area to 0.36 acres of mostly impervious area.' The,storm water from the west part of the site will not be collected, but will sheet flow into the new street,gutter for discharge into-the-storm system in Jones Avenue•Northeast a maximum'distance of"180 feet. . The'0.36 acre,sub-basin:will 'covered by 0.19 acres of pervious area in the,form oflandscaping and small portions:of lawn area from lots 1 and 10, while the 0.17•acres of impervious area will:be street pavement sidewalks. The CN values for•the:west basin are the same as the east HYDROLOGIC ANALYSIS: _:. ;•• , • Based on information from the King County Surface Water:Design,.Manual.it determined. %::;,°•:,''•:-:::;,Zs Y.:J'! '` ' that the'24 hour precipitation.for this region'of the City of Renton would:be 2.0 inches"for a two t: ; r ; year storm, 2.9 inches for a ten year storm and 3.9 inches for 100 year storm:':The.CN•values''3:°i:�:: for the existing conditions were 65 for pervious and 98_for impervious•areas. The_CN values,for developed conditions are 65 for.pervious ;° ':. ;; > .,% :" a.;'^n ?:i;b.. ; k- :; :< • p rviousand98•foi'imperviousareas��. � > •`�°��3::�,�P y ��::„_`�� ' �.+.�� p �=.� s.ra,ts_{" am }€ aF:d;�:,.,.. :';�:.: AI T> :4: - 3' 1 �Vai�:'r .•t, yt., •.]' - is. t�+••'�i r_�r, C': ). d=-i 'li,'t• ,i:i K s,7•iµ=f i '�. . r'r�,r e•�4 :p- , '1!- • '1'4' .';:,i:_r3 •e f, f .:K f..rj .,i�J •r J-. }.`''. - r.,,l"... ai- 'xS:" :•rJ",-sr:;; Y - :rl`T. :;1;'`P rra ;i"T': . • There is approximately 0.09 acres of pervious area that will flow directly into the wetlands without being collected, conveyed or detained. This area, when developed, will be lawn and landscape area of nearly the same CN value as the pre-developed site. For simplicity,we have included this bypass area in the East Basin modeling. We also considered the use of infiltration to mitigate site discharge,but the only application that would be effective is infiltration of residence roof areas. With an allowable percolation rate of 2.4"/hr.to 8.0"/hr.,from the King County Surface Water Design Manual Section/Table 4.5.2 and a regional scale factor of 1.0, and tested percolation rates between 20"/hr. and 100"/hr., from site geotechnical report, infiltration is feasible. The O.L.D.S. Group analyzed a total area collection/detention model for the east basin as a more conservative model and the worst case condition. The point of discharge for the east and west sub-basins are the same as existing conditions. A spreader trench will be used to discharge storm water to the wetlands in the northeast corner of • the site as a method of preserving the existing point of discharge. RETENTION/DETENTION ANALYSIS: The basis for all analysis and design for the Plat of Whispering Pines is the 1990 Edition of the King County Surface Water Design Manual and the City of Renton Zoning and Development Codes. Waterworks by Engenious Systems, 1994 edition, was used to model the system elements and calculate flow and detention volumes. Waterworks allowed us to write complete and comprehensive program models that processes and calculates each of the natural basin and developed sub-basin systems. The vault shall be sized to include a thirty percent(30%) increase in volume as a factor of safety. For the purpose of this analysis time of concentrations were calculated using the ITC and PTC calculators in the Waterworks program. These calculators assume saturated 'conditions and therefore give very conservative estimates for the storm drainage collection. Conveyance flow calculations were performed automatically as part of the program After revisions are made for Preliminary Plat review comments from the City of Renton and preparation of construction/permit drawings the fmal analysis will include conveyance calculations. • EXISTING BASIN DISCHARGE - East Basin ,- See the Appendix for Storm Drainage Calculations to view the basin model. summary. The data and results of the model are as follows: Item Area CN TC Volume _ , , Pervious 1.50 Acres 65 17.49 Min. • :> . Impervious . 0.02 Acres 98 18.01 Min. Total 1.52 • ' 2 Year Discharge 0.02 CFS. 10 year Discharge 0.05.CFS 100 Year Discharge • 0.17 CFS?:..` ' • /� )� • '12 r-. •F • ;a• x G'r �\ a •:'1`� �A ��) •:S Y i P :i•: .t .rt•r^ 'f W• West Basin - See the Appendix for Storm Drainage Calculations to view the basin model - summary.The data and results of the model are as follows: . - Item Area CN TC Volume Pervious 0.54 Acres 65 22.11 Min. Impervious 0.14 Acres 98 1.86 Min. Total 0.68 Acres 2 Year Discharge 0.06 CFS 10 Year Discharge 0.09 CFS 100 Year Discharge 0.16 CFS DETENTION SYSTEM DESIGN - The east basin detention system will use a water quality vault to detain the storm waters and a multiple orifice structure to control the system release. The vault will be constructed in place in accordance with City of Bothell structural engineering requirements. The vault was modeled with dimensions of 30' by 70' with an outlet elevation of 250.50 and a top of structure elevation of 257.50,allowing for 5.0 feet of detained storage. With a 30%factor of safety the vault size will be constructed as 91' by 30 feet. Half of the two year collected volume will be used as dead storage below the outlet elevation. The total•2 year volume collected is 6,406 CF,of which half would be 3.203 CF requiring an additional 1.50 feet of depth in,the vault. The bottom elevation of the vault would then be 249.00. The modeled overflow elevation of the vault is 255.20. See the Appendix for Storm Drainage Calculations to view the basin model summary. The vault is shown on the preliminary plat plans. DEVELOPED SUB-BASIN DISCHARGE - • West Sub-basin - As discussed in preceding sections the west sub-basin has been reduced in size so that the developed discharge will match the allowed pre-development discharges. See the Appendix for Storm Drainage Calculations to view the basin model summary. The data and results of the model are as follows: Item Area CN TC Volume Pervious 0.19 Acres < 70 16.15 Min Impervious 0.17 Acres '- 98 0.87 Min. - Total 0.36 Acres 2 Year Discharge • 0.07 CFS 10 Year Discharge :. 0.10 CFS 100 year Discharge 0.16 CFS• y a. .rl._ zY�.�- �.r4'� i5a��/� - •� ti c, �o � - .r.- I- lr' _ yy East Sub-Basin - The east sub-basin is assumed to be fully collected and detained. See the Appendix for Storm Drainage Calculations to review the basin model program and results. The data and results of the model are as follows: ; Item Area ;'. CN TC Volume Pervious 0.87 Acres 65 12.18 Min. Impervious '0.97 Acres 98 1.38 Min. Total 1.84 Acres 2 Year Discharge 0.01 CFS 10 Year Discharge 0.05 CFS 100 Year Discharge 0.17 CFS CONVEYANCE SYSTEM ANALYSIS The conveyance system is assumed to be three catch basins and 215 LF of 12"pipe with a slope of 2%. The slope maybe revised during fmal design to raise the outlet invert into the vault. Design calculations will be submitted with the permit/construction plans. SPECIAL REPORTS AND STUDIES WETLANDS DELINEATION REPORT - A wetlands delineation report has been prepared by Sargent Environmental Consulting,dated March 13, 1995. The delineation was flagged in the field and the flags located by survey for the preparation of the topographic survey drawing in the plan set. GEOTECHNICAL REPORT - A geotechnical report has been prepared by Earth Consultants, Inc., dated March 22, 1997. The geotechnical.report information covers storm drainage issues including the possibility of infiltration. BASIN AND COMMUNITY PLAN AREAS COMMUNITY PLAN - The Plat of Whispering Pines is subject..to the zoning and development requirements of the City of Renton only. BASIN PLAN - The City of Renton,is currently reviewing the proposed May Creek.Basin Plan, which will replace the May Creek Critical Drainage Basin Policies. The.May''Creek: : :• Critical Drainage Basin Policies were discussed in the Special Requirements.Section of the.. Retention/Detention Analysis and Design. The Draft May Creek Basin Plan would :revise: Retention/Detention requirements to the standard %2 of the two year, the 10 year, the 100 year <. pre-developed storm water release rates for the developed site. '..::. ll1Hllt'(01-20111Uo (laROJIP';-':"'ter>,.•t...,:' •,<';>::.:,.. :,..:.- _ OTHER PERMITS NOT APPLICABLE to the Preliminary Plat review process. TEMPORARY EROSION AND SEDIMENTATION CONTROL ANALYSIS AND DESIGN NOT APPLICABLE to the Preliminary Plat review process. BOND QUANTITY WORKSHEET,RETENTION/DETENTION FACILITY SUMMARY SHEET AND DECLARATION OF COVENANT NOT APPLICABLE to the Preliminary Plat review process. MAINTENANCE AND OPERATIONS MANUAL NOT APPLICABLE to the Preliminary Plat review process. • 15 APPENDIX: - TABLE OF•CONTENTS:- • = . ITEM • ' PAGE Storm Drainage Calculations • Natural Basin Discharges Existing East Basin 1 Existing West Basin 2 Developed Sub-basin Discharge West Sub-basin 3 East Sub-basins 4 East Sub-basin Detention Model Program 5-6 Storage and Discharge Structures Storage Structure 7 Discharge Structure 8 East Sub-basin Detention Model Results • Program With Calculated Results 9-10 Vault Stage Storage Table 11 Discharge Stage Storage Table . 12 East Sub-basin Detention Model Results w/Residence Infiltration. 13-14 Exhibit I-A - Natural Basin Map For Area 15 I-B - Site Existing Basin Map (See back pocket.) Exhibit II- Downstream Analysis by Lance Y.K.Gyotoku,P.E. . 16-20 Exhibit III-Developed Sub-Basin Map (See back pocket.) ' STORM DRAINAGE CALCULATIONS NATURAL BASIN DISCHARGES 8/5/97 2 :5:2 pm = : OLDS Inc. ' . page 1 Whisper Pines BASIN SUMMARY'. BASIN ID: eb2e.hyd NAME: 2 yr existing east basin SBUH METHODOLOGY TOTAL AREA • 1.52 Acres BASEFLOWS: 0. 00 cfs RAINFALL TYPE. . . . : TYPE1A PERV IMP PRECIPITATION • 2 . 00 inches AREA. . : 1.50 Acres 0.02 Acres TIME INTERVAL • 10.00 min CN • 65 .00 98 .00 TC • 17.49 min 18. 01 min ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 195.00 ns:0.1300 p2yr: 2 .00 s:0.0620 TcReach - Sheet L: 80.00 ns:0.2400 p2yr: 2 .00 s:0 .2500 impTcReach - Sheet L: 30. 00 ns:0.0110 p2yr: 2.00 s:0.5000 impT.cReach - Sheet L: 220. 00 ns:0.1300 p2yr: 2 . 00 s:0 . 0545 impTcReach - Sheet L: 40.00 ns:0.4000 p2yr: 2.00 s:0.4000 PEAK RATE: 0 .02 cfs VOL: 0 . 02 Ac-ft TIME: 1120 min BASIN ID•. ebCe.hyd NAME: 100 yr existing east basin SBUH METHODOLOGY TOTAL AREA • 1.52 Acres BASEFLOWS: 0. 00 cfs RAINFALL TYPE • TYPE1A PERV IMP PRECIPITATION • 3 .90 inches AREA. . : 1.50 Acres 0 .02 Acres TIME INTERVAL 10.00 min CN • 65. 00 98 . 00 TC • 17.49 min 18 . 01 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 0.17 cfs VOL: 0.13 Ac-ft TIME: 490 min BASIN ID: ' ebXe.hyd NAME: 10 yr existing east basin { SBUH METHODOLOGY TOTAL AREA • 1.52 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE TYPE1A PERV IMP PRECIPITATION' • 2.90 inches AREA. . : 1.50 Acres 0.02 Acres TIME INTERVAL 10. 00 min CN • 65. 00 98 . 00 TC • 17.49 min 18 .01 min ABSTRACTION COEFF: 0.20 PEAK RATE:. 0.05 cfs VOL: 0. 06 Ac-ft TIME: 960 min - t ey. _ 1 .,,._. ._ ..•... ... ,. - ,.. c...,-e-.. .-.< . .�"ter`:. _._ .a- - � ......, .+ ... ..-. ... >.. -. .,. 8/5/97 2 : 6 :22 pm OLDS Inc. page 1 Whisper Pines BASIN SUMMARY . BASIN ID: wb2e.hyd NAME: 2 yr existing west basin SBUH METHODOLOGY TOTAL AREA - 0 .68 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE • TYPE1A PERV IMP PRECIPITATION • 2.00 inches AREA. . : 0 .53 Acres 0 .14 Acres TIME INTERVAL • 10. 00 min CN • 65. 00 98. 00 TC • 22 .11 min 1.86 min ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 160. 00 ns:0 .1500 p2yr: 2 . 00 s:0.0125 TcReach - Shallow L: 130. 00 ks:27.00 s:0 . 0615 impTcReach - Sheet L: 40. 00 ns:0.0110 p2yr: 2 . 00 s:0.5000 impTcReach - Shallow L: 140 . 00 ks:13.. 00 s:0 . 0180 impTcReach - Shallow L: 130 . 00 ks:27. 00 s:0 . 0615 PEAK RATE: 0 . 06 cfs VOL: 0. 03 Ac-ft TIME: 470 min • BASIN ID: wbCe.hyd NAME: 100 yr existing west basin SBUH METHODOLOGY TOTAL AREA • 0. 68 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE • TYPE1A PERV IMP , ' PRECIPITATION • 3 .90 inches AREA. . : 0 .53 Acres . 0 .14 Acres TIME INTERVAL • 10. 00 min CN • 65. 00 98 .00 TC • 22 .11 min 1.86 min ABSTRACTION COEFF: 0.20 impTcReach - Sheet L: 40.00 ns:0. 0110 p2yr: 2 . 00 s:0 .5000 impTcReach - Shallow L: 140.00 ks:13 . 00 s:0 . 0180 ' impTcReach - Shallow L: 130. 00 ks:27. 00 s:0 . 0615 PEAK RATE: 0 .16 cfs VOL: 0 . 09 Ac-ft TIME: 480 min BASIN ID: wbXe.hyd NAME: 10 yr existing west basin SBUH METHODOLOGY TOTAL AREA • 0.68 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE • TYPE1A PERV IMP PRECIPITATION • 2.90 inches AREA. . : 0 .53 Acres 0.14 Acres TIME INTERVAL • 10.00 min CN • 65. 00 . 98. 00 TC • 22 .11 min 1.86 min ABSTRACTION COEFF: 0.20 impTcReach - Sheet L: 40. 00 ns:0. 0110 p2yr: 2 . 00 s:0 .5000 impTcReach - Shallow L: 140. 00 ks:13 . 00 s:0 .0180 impTcReach - Shallow L: 130. 00 ks:27. 00 s:0 . 0615 . PEAK RATE: 0 . 09 cfs VOL: 0 .05 Ac-ft TIME: 470 min ,L 2_ DEVELOPED SUB-BASIN DISCHARGES 8/5/97 2 :5:23 pm : : OLDS Inc. page 1 Whisper Pines , . BASIN SUMMARY BASIN ID: wb2d.hyd NAME: 2 yr developed west basin SBUH METHODOLOGY . TOTAL AREA 0 .36 Acres . BASEFLOWS: . 0 . 00 cfs RAINFALL TYPE •. TYPE1A PERV IMP PRECIPITATION • 2.00 inches AREA. . : 0.19 Acres 0 .17 Acres TIME INTERVAL 10.00 min CN • 65.00 98 . 00 TC • 16.15 min 0 .88 min ABSTRACTION. COEFF: 0 .20 TcReach - Sheet L: 95. 00 ns:0..1500 p2yr: 2 . 00 s:0. 0100 TcReach - Shallow L: 180.00 ks:27.00 s:0.0610 impTcReach - Sheet L: 20.00 ns:0-.0110 p2yr: 2 .00 s:0. 0200 impTcReach - Shallow L: 180.00 ks:27. 00 s:0 . 0600 PEAK RATE: 0. 07 cfs VOL: 0.03 Ac-ft TIME: 470 min BASIN ID: wbCd.hyd NAME: 100 yr developed west basin SBUH METHODOLOGY TOTAL AREA • 0 .36 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE TYPE1A PERV IMP PRECIPITATION • 3 .90 inches AREA. . : 0.19 Acres 0.17 Acres TIME INTERVAL 10 .00 min .CN • 65. 00 98 .00 TC • 16.15 min 0 . 87 min ABSTRACTION COEFF: 0.20 impTcReach :- Sheet L: 20.00 ns:0.0110 p2yr: 2 .00 s:0. 0200 impTcReach '- Shallow L: 180. 00 ks:27. 00 s:0. 0610 PEAK RATE: 0 .16 cfs VOL: 0 .07 Ac-ft TIME: 470 min BASIN ID: wbXd.hyd NAME: 10 yr developed west basin SBUH METHODOLOGY TOTAL AREA • 0.36 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE TYPE1A PERV IMP PRECIPITATION • 2 . 90 inches AREA. . : 0 .19 Acres 0. 17 Acres TIME INTERVAL • 10. 00 min CN • 65. 00 98 . 00 TC • 16 .15 min 0 . 87 min ABSTRACTION COEFF: 0 .20 . impTcReach - Sheet L: 2.0. 00 ns:0.0110 p2yr: 2 . 00 s: 0 . 0200 impTcReach - Shallow L: 180. 00 ks:27.00 s:0 . 0610 PEAK RATE:' ' 0 .11 cfs VOL: : 0 .05 Ac-ft TIME: 470 min . - - r .J t? .: i 3 8/5/97 2 :18 :9 pm OLDS Inc. page 1 Whisper Pines BASIN SUMMARY BASIN ID: cbl.dev NAME: 100 YR. EAST BASIN CB 1 ' SBUH METHODOLOGY TOTAL AREA • 0 .39 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE • TYPE1A PERV IMP PRECIPITATION • , 3 .90 inches AREA. . : 0 .21 Acres 0 .18 Acres TIME INTERVAL • 10 . 00 min CN • 70 . 00 98 . 00 TC • 11. 87 min 1.10 min ABSTRACTION COEFF: 0.20 TcReach" - Sheet L: 90 . 00 ns:0 .1500 p2yr: 2 . 00 s:0 . 0200 TcReach - Shallow L: 110. 00 ks:27.00 s: 0 . 0200 impTcReach - Sheet . L: 40 . 00 ns.:0 . 0110 p2yr: 2 . 00 s:0 . 0250 impTcReach - Shallow L: 110. 00 ks:27. 00 s:0 . 0250 PEAK RATE: 0 .18 cfs VOL: 0 .08 Ac-ft TIME: 470 min BASIN ID: cb3 .dev NAME: 100 YR. EAST BASIN CB . 3 '.. SBUH METHODOLOGY TOTAL AREA • 0 . 68 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE TYPE1A PERV IMP PRECIPITATION • 3 .90 inches AREA. . : 0 .36 Acres 0 .32 Acres TIME INTERVAL 10 . 00 min CN • 70 . 00 98 . 00 TC • 12 . 00 min 1.28 min ABSTRACTION COEFF: 0 .20 . TcReach - Sheet L: 90. 00 ns : 0.1500 p2yr: 2 . 00 s:0 . 0200 TcReach - Shallow L: 155.00 ks:27. 00 s:0.0250 impTcReach - Sheet L: 40.00 ns :0. 0110 p2yr: 2 . 00 s:0 . 0250 impTcReach - Shallow L: 155.00 ks:27. 00 s:0 . 0250 PEAK RATE: 0 .33 cfs VOL: 0 .14 Ac-ft TIME: 470 min BASIN ID: cb4 .dev NAME: 100 YR. EAST BASIN CB 4 SBUH METHODOLOGY TOTAL AREA • 0 .78 Acres BASEFLOWS: 0 . 00 cfs RAINFALL TYPE TYPE1A PERV IMP PRECIPITATION • 3 . 90 inches AREA. . : 0 .30 'Acres 0 .48 Acres TIME INTERVAL 10 . 00 min CN • 70 . 00 98 . 00 TC • 12 .18 min 1.38 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 90 . 00 ns:0 .1500 p2yr: 2 .00 s :0 .0200 TcReach - Shallow L: 180 . 00 ks:27. 00 s: 0. 0200 impTcReach - Sheet L: 40. 00 ns:0 . 0110 p2yr: 2 .00 s:0 . 0250 • impTcReach - Shallow L: 180. 00 ks:27. 00 s:0 . 0250 . PEAK RATE: .0 .45 cfs VOL: 0 .18 Ac-ft TIME: 470 min EAST SUB-BASIN DENTION MODEL PROGRAM _late of Session: 6/9/97 1:22 :44 -pm ' . CLEARHIS . • EMARK ' THIS PROGRAM HAS BEEN -WRITTEN:TO' PROVIDEtPRELIMINARY MODELLING ^,F THE PLAT OF WHISPERING PINES STORM SYSTEM:: THE FIRST STEP IS - " UPDATE THE 'SUB-BASIN INFORMATION FOR A'TWO YEAR STORM,' 'J EN ROUTE A HYDROGRAPH THOUGH THE CATCH BASIN SYSTEM •FOR THE 'EAST BASIN. THE TWO SYSTEM RUNS ARE 'THEN ADDED TOGETHER TO PROVIDE THE g HYRDOGRAPH FOR THE .LEVEL POOL ROUTING TABLE. . STEND -IANGE DESCRIPTION "2 yr. East Basin CB 1,3 & 4" JANGE PRECIP 2..00 cbl.dev cb3 .dev cb4 .dev ISTEND _ERO 1. 20 ROUTE HYDROGRAPH 1 THROUGH REACH west ZERO JUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO DD 1 2 3 • • EMARK wOW THE SUB-BASINS HAVE TO BE UPDATED FOR THE 10 YEAR STORM - FOR A HYDROGRAPH RUN THROUGH THE CATCH BASIN SYSTEMS, THE HYDROGRAPHS `ZE THEN ADDED TOGETHER TO PROVIDE THE 10 YEAR IN HYRDROGRAPH FOR `iE LEVEL POOL ROUTING TABLE. LSTEND • ANGE DESCRIPTION "10 yr. East Basin CB 1,3 & 4" CHANGE PRECIP '2 . 90 ^,1.dev cb3 .dev' cb4.dev 'WEND ZERO 1 2 ' )UTE HYDROGRAPH 1 THROUGH REACH west ZERO )UTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO ADD 1 2 4 . REMARK MOW THE -SUB-BASINS HAVE TO BE UPDATED FOR THE ,100 YEAR STORM- • . i )R A HYDROGRAPH RUN -THROUGH THE CATCH 'BASIN 'SYSTEMS, THE 'HYDROGRAPHS `. . _tE THEN 'ADDED TOGETHER' TO- PROVIDE THE 10 0 YEAR IN' HYRDROGRAPH FOR '. ,. • • ' - THE LEVEL POOL' ROUTING .TABLE: ' •' '.- ' '.. . . 3TEND . • • MANGE DESCRIPTION "100 :yr.' .East 'Basin CB 'iANGE PRECIP 3 . 90 . . . cnl.dev •cb3 .dev' cb4 .dev,•-:. : ; ' • '' = T-+:STEND . . -ERO 1 2 " .ROUTE HYDROGRAPH. 1. THROUGH'�;REACHwest -'ZERO. '-` �Y�:�':::� .,�4 � .:,�. )UTE HYDROGRAPH '2:•THROUGH:REACH.'cb4: ZERO :,: .r ;•.:: 1 ')D 1 2. 5 • . � it' - +.�'' T.. `•l $.r MARK. >'3. sf r.i - - •Tv�"r(s�'.;p:: _ '•r,: -h"' ',}. -.1{` bit%. '-i°��::..+,_r:'-.'1%;<'._. _ •iGLy 4 .:3W THAT THE THREE FREQUENCY IN HYDROGRAPHS HAVE BEEN • . CALCULATED WE CAN NOW RUN THE LEVEL ROUTING 'TO SIZE THE • 2IFICES AND CALCULATE THE .ELEVATIONS AND STORAGE REQUIREMENTS `DR THE THREE DESIGN STORMS. LSTEND . }POOL 1 "2 year" 0 .010000 3 wspn wspn 6 LPOOL 2 "10 year" 0 . 0.50000 4 wspn wspn 7 ;POOL 3 "100 yr" 0 . 170000 5 wspn wspn 8 • • • • .. f'. n f�� STORAGE AND DISCHARGE STRUCTURES 8/5/97 2 : 18 :56 pm OLDS Inc. page 2 Whisper Pines STORAGE STRUCTURE LIST RECTANGULAR VAULT ID No. wspn Description: CDS Vault Length: 70 . 00 ft. Width: 30 . 00 ft. voids : 1 . 000 7 8/5/97 2 :21 :45 pm OLDS Inc. page 1 Whisper Pines DISCHARGE STRUCTURE LIST MULTIPLE ORIFICE ID No. wspn Description: Orifice tree for 2, 10, 100 yr. Outlet Elev: 250 .50 Elev: 248 . 50 ft Orifice Diameter: 0 .4578 in. Elev: 253 . 70 ft Orifice 2 Diameter: 1. 0869 in. Elev: 255 . 20 ft Orifice 3 Diameter: 2 . 7598 in. 8 EAST SUB-BASIN DETENTION MODEL RESULTS • Date of Session: 8/5/97 2:13 :0 pm CLEARHIS REMARK THIS PROGRAM HAS BEEN WRITTEN TO PROVIDE PRELIMINARY MODELLING OF THE PLAT OF WHISPERING PINES STORM SYSTEM. THE FIRST STEP IS TO UPDATE THE SUB-BASIN INFORMATION FOR A TWO YEAR STORM, THEN ROUTE A HYDROGRAPH THOUGH THE CATCH BASIN SYSTEM FOR THE EAST BASIN. THE TWO SYSTEM RUNS ARE THEN ADDED TOGETHER TO PROVIDE THE IN HYRDOGRAPH FOR THE LEVEL POOL ROUTING TABLE. LSTEND CHANGE DESCRIPTION "2 yr. East Basin CB 1,3 & 4" CHANGE PRECIP 2.00 cbl.dev cb3.dev cb4.dev LSTEND ZERO 1 20 ROUTE HYDROGRAPH 1 THROUGH REACH west ZERO Network west Reach <AREA> <Act Q> <Q Full> % Full Ndepth <Diam> <NVel> <PVel> Carea cb3 0.68 0.13 4.16 3.23 1.53 12.00 2.30 4.93 cb3 .dev cbl 1.07 0.21 4.16 5.04 1.90 12.00 2.63 4.93 cbl.dev ROUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO Reach -Area- --Qact-- --QFull- %Full Ndepth --Dia- -Vact- -Vfull Basn cb4 0.78 0.20 4.16 4.83 1.86 12.00 2.60 4.93 cb4.dev • ADD 1 2 3 0.4109 cfs 0.1620 ac-ft 7.83 hrs REMARK • NOW THE SUB-BASINS HAVE TO BE UPDATED FOR THE 10 YEAR STORM FOR A HYDROGRAPH RUN THROUGH THE CATCH BASIN SYSTEMS, THE HYDROGRAPHS ARE THEN ADDED TOGETHER TO PROVIDE THE 10 YEAR IN HYRDROGRAPH FOR THE LEVEL POOL ROUTING TABLE. LSTEND CHANGE DESCRIPTION "10 yr. East Basin CB 1,3 & 4" CHANGE PRECIP 2.90 cbl.dev cb3.dev cb4.dev LSTEND ZERO 1 2 ROUTE HYDROGRAPH 1 THROUGH REACH west ZERO Network west Reach <AREA> <Act Q> <Q Full> % Full Ndepth <Diam> <NVel> <FVel> Carea cb3 0.68 0.21 4.16 5.16 1.92 12.00 2.65 4.93 cb3 .dev cbl 1.07 0.34 4.16 8.06 2.39 12.00 3.02 4.93 cbl.dev ROUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO Reach -Area- --Qact-- --QFull- %Full Ndepth --Dia- -Vact- -Vfull Basn , cb4 0.78 0.31 4.16 7.46 2.30 12.00 2.95 4.93 cb4.dev 9 ADD 1 2 4 0.6464 cfs 0.2652 ac-ft 7.83 hrs REMARK NOW THE SUB-BASINS HAVE TO BE UPDATED FOR THE 100 YEAR STORM FOR A HYDROGRAPH RUN THROUGH THE CATCH BASIN SYSTEMS, THE HYDROGRAPHS ARE THEN ADDED TOGETHER TO PROVIDE THE 100 YEAR IN HYRDROGRAPH FOR THE LEVEL POOL ROUTING TABLE. LSTEND CHANGE DESCRIPTION "100 yr. East Basin CB 1,3 & 4" CHANGE PRECIP 3.90 cbl.dev cb3.dev cb4.dev LSTEND ZERO 1 2 ROUTE HYDROGRAPH 1 THROUGH REACH west Network west Reach <AREA> <Act Q> <Q Full> % Full Ndepth <Diam> <NVel> <FVel> Carea cb3 0.68 0.33 4.16 7.82 2.35 12.00 2.99 4.93 cb3.dev cbl 1.07 0.51 4.16 12.24 2.94 12.00 3.41 4.93 cbl.dev ROUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO Reach -Area- --Qact-- --QFull- %Full Ndepth --Dia- -Vact- -Vfull Basn cb4 0.78 0.45 4.16 10.82 2.76 12.00 3.29 4.93 cb4.dev ADD 1 2 5 0.9598 cfs 0.3902 ac-ft 7.83 hrs REMARK NOW THAT THE THREE FREQUENCY IN HYDROGRAPHS HAVE BEEN CALCULATED WE CAN NOW RUN THE LEVEL ROUTING TO SIZE THE ORIFICES AND CALCULATE THE ELEVATIONS AND STORAGE REQUIREMENTS FOR THE THREE DESIGN STORMS. LSTEND LPOOL 1 "2 year" 0.010000 3 wspn wspn 6 Description MatchQ PeakQ Sto Dis PkStg OutQ hyd Volu 2 year 0.01 0.41 wspn wspn .253.59 0.01 6 6486 LPOOL 2 "10 year" 0.050000 4 wspn wspn 7 Description MatchQ PeakQ Sto Dis PkStg OutQ hyd Volu 10 year 0.05 0.65 wspn wspn 255.09 0.05 ,7 •9,637 LPOOL 3 "100 yr" 0.170000 5 wspn wspn 8 Description MatchQ PeakQ Sto Dis PkStg OutQ hyd Volu 100 yr 0.17 0.96 wspn wspn 255.51 0.17 8 . 10512 End program file D:\BNNT-0-1\CALCS\WSPN.pgm 10 . 8/5/97 2 :20 :52 pm OLDS Inc. page 1 Whisper Pines STAGE STORAGE TABLE RECTANGULAR VAULT ID No. wspn Description: CDS Vault Length: 70 . 00 ft. Width: 30 . 00 ft . voids : 1. 000 STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --Ac-Ft- 250.50 0.0000 0.0000 251.80 2730 0.0627 253.10 5460 0.1253 254.40 8190 0.1880 250.60 210.00 0.0048 251.90 2940 0.0675 253.20 5670 0.1302 254.50 8400 0.1928 250.70 420.00 0.0096 252.00 3150 0.0723 253.30 5880 0.1350 254.60 8610 0.1977 250.80 630.00 0.0145 252.10 3360 0.0771 253.40 6090 0.1398 254.70 8820 0.2025 250.90 840.00. 0.0193 252.20 3570 0.0820 253.50 6300 0.1446 254.80 9030 0.2073 251.00 1050 0.0241 252.30 3780 0.0868 253.60 6510 0.1494 254.90 9240 0.2121 251.10 1260 0.0289 252.40 3990 0.0916 253.70 6720 0.1543 255.00 9450 0.2169 251.20 1470 0.0337 252.50 4200 0.0964 253.80 6930 0.1591 255.10 9660 0.2218 251.30 1680 0.0386 252.60 4410 0.1012 253.90 7140 0.1639 255.20 9870 0.2266 251.40 1890 0.0434 252.70 4620 0.1061 254.00 7350 0.1687 255.30 10080 0.2314 251.50 2100 0.0482 252.80 4830 0.1109 254.10 7560 0.1736 255.40 10290 0.2362 251.60 2310 0.0530 252.90 5040 0.1157 254.20 7770 0.1784 255.50 10500 0.2410 251.70 2520 0.0579 253.00 5250 0.1205 254.30 7980 0.1832 255.60 10710 0.2459 11 8/5/97 2 :21 :45 pm OLDS Inc. page 2 Whisper Pines STAGE DISCHARGE TABLE MULTIPLE ORIFICE ID No. wspn Description: Orifice tree for 2, 10, 100 yr. Outlet Elev: 250 . 50 Elev: 248 .50 ft Orifice Diameter: 0 .4578 in. Elev: 253 . 70 ft Orifice 2 Diameter: 1. 0869 in. Elev: 255 . 20 ft Orifice 3 Diameter: 2 . 7598in. STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> (ft) ---cfs (ft) ---cfs (ft) ---cfs • (ft) ---cfs 250.50 0.0000 251.80 0.0065 253.10 0.0092 254.40 0.0381 250.60 0.0018 251.90 0.0067 253.20 0.0093 254.50 0.0400 250.70 0.0025 252.00 0.0070 253.30 0.0095 254.60 0.0419 250.80 0.0031 252.10 0.0072 253.40 0.0097 254.70 0.0437 250.90 0.0036 252.20 0.0074 253.50 0.0098 .254.80 0.0454 251.00 0.0040 252.30 0.0076 253.60 0.0100 254.90 0.0470 251.10 0.0044 252.40 0.0078 253.70 0.0102 .255.00 0.0486 251.20 0.0048 252.50 0.0080 253.80 0.0205 255.10 0.0501 251.30 0.0051 252.60 0.0082 253.90 0.0248 255.20 0.0516 251.40 0.0054 252.70 0.0084 254.00 0.0282 255.30 0.1184 251.50 0.0057 252.80 0.0086 254.10 0.0311 •255.40 0.1468 251.60 0.0060 252.90 0.0088 254.20 0.0336 255.50 0.1689 251.70 0.0062 253.00 0.0090 254.30 0.0359 ' 255.60 0.1878 • 12 • EAST SUB-BASIN DETENTION MODEL RESULTS, WITH RESIDENCE INFILTRATION • • Date of Session: 6/10/97 ' 11:19:26 am • CLEARHIS REMARK THIS PROGRAM HAS BEEN WRITTEN TO PROVIDE PRELIMINARY MODELLING . OF THE PLAT OF WHISPERING PINES STORM •SYSTEM. THE FIRST STEP IS TO UPDATE THE SUB-BASIN INFORMATION FOR A TWO YEAR STORM, • THEN ROUTE A HYDROGRAPH THOUGH THE CATCH BASIN SYSTEM FOR THE EAST• BASIN. THE TWO SYSTEM RUNS ARE THEN ADDED TOGETHER TO PROVIDE THE • IN HYRDOGRAPH FOR THE LEVEL POOL ROUTING TABLE. • LSTEND • CHANGE DESCRIPTION "2 yr. East Basin CB 1,3 & 4" CHANGE PRECIP 2.00 ' • cbl.dev cb3.dev cb4.dev LSTEND ZERO 1 20 ROUTE HYDROGRAPH 1 THROUGH REACH west ZERO Network west Reach <AREA> <Act Q> <Q Full> % Full Ndepth <Diam> <NVel> <FVel> Carea cb3 • 0.60 0.10. . 4.16 '. 2.39 1.33 12.00 2.11 4.93 cb3.dev cbl 0.95 0.16 4.16 3.80 1.66 12.00 2.42 4.93 cbl.dev ROUTE HYDROGRAPH 2 THROUGH REACH cb4 ZERO Reach • -Area- --Qact-- --QFull- %Full Ndepth --Dia- -Vact- -Vfull Basn cb4 . 0.42 .0.09 4.16 2.09 1.24 12.00 2 .02 4.93 cb4.dev ADD 1 2 3 • 0..2455 cfs 0.0952 ac-ft 7.83 hrs REMARK , NOW THE SUB-BASINS HAVE TO BE UPDATED FOR THE 10 YEAR STORM • FOR A 'HYDROGRAPH RUN THROUGH. THE CATCH BASIN SYSTEMS, THE HYDROGRAPHS • ARE THEN ADDED TOGETHER TO PROVIDE THE 10 YEAR IN HYRDROGRAPH FOR THE LEVEL POOL ROUTING TABLE. LSTEND CHANGE DESCRIPTION "10 yr. East Basin CB 1,3 & 4" . CHANGE PRECIP 2.90 cbl.dev cb3.dev cb4.dev - LSTEND . ZERO . 1 2 , . ROUTE HYDROGRAPH 1 THROUGH REACH west ZERO Network west Reach <AREA> <Act Q> <Q Full> % Full Ndepth <Diam> <NVel> <FVel> Carea cb3 0.60 0.15 4.16 3.58 1.61 12.00 2.38 4.93 cb3.dev cbl 0.95 '0.24 4.16 5.69 2.01 12.00 2.73 4.93 cbl.dev ROUTE HYDROGRAPH. '.2 THROUGH REACH cb4 ZERO • Reach -Area- --Qact--. --QFull-• %Full Ndepth --Dia- -Vact- -Vfull Basn cb4 0.42 0.13 4.16 . 3.12 1.51 12.00 2.28 • 4.93 cb4.dev • • 13 EXHIBIT I EXHIBIT I-A ► ' "�'--,,,,� :.��2'f / '� ' � .�`;� 1 IiI � v 1 (------, -... ii / �emsy. � .�l 4..":;-_-1..:::„.., Z...--.../ . fl (It; .:11111, \.\\\, ,,,,,. ,• •;M. 1 / V to•4111,,_at '".s4.1.‘1;twAlk: l'4,..__drI 4tid,,` 1 ,141111mok \ milk,. ____:, ....d. N. g vi..... . le e 1 i 4 ,-2 I. 1 1:, .!.. i ,*41,9 6 .140z,L1,-. *----,--::-.--„k, ' ...v, \ \ N f, ...,,..... 'rim . .-..e..,...• k ..\ Jf 4. P ...._,,, •.*_ tt 0 E ,,,,.. 1 .4 , ‘ ,. * •-1 :. k . .- • : - : 1 .: . -..,....: .1% ,..\\\ \\. Ey:, - )1 1 i ,,,,„14 L. , ,,,‘.. ., . i\_______ ,.. ,_..0 = /t .L*till = p III 4 r(Q L i . �f1.106,.. \ II:'''''' ••••••••1-11P2IN rill - . - IIMIlki,74 ii.,.., ,.),.,.. ,., 1:1,...1.‘,,,li.k ‘ I i \\ .i-2 i1 , ..� `= . � , ‘111 mitvesmitimm, Ntrfelw .... ..).\--- .=—, .-41e '11.141114 .12..t-?41 WIT%(:-.1,f:. ''. 1 \ ':•ti., *:',:...-..?....\:Pl.. I i I "\ iii'i • 7-NZ\: L.,t.. e" °" "1 ‘. , . .,: ,.. slpi,,,,,..\\:. .,.. . ,.,,,,,,r* .,: .". .. .'st4 ..s.i.'l ii *ilk • itt6L Pr . .;...,/, ' .• 'AS A, .. - :it\ ri\ —a---_,A-i ---J------- .� ?`sue• ) 1- ..---• • � \:.. ,..c. ,.. • ` `�„��I •‹--- ,,,...-2. , .. sc a sr, .k, 7�\ eT/ 4 of / —�. .�i �jt�1'�\ '�� ‘41151311%. \ .S'' lit- ' ..••I ..; 1 • '''bp ‘ - .---'..-1".-1 4, \- ,,efpro .s.4-.. ,•....-e-CA.:.1. --.'' Irb.'‘IPIk .11. — 1.‘• .-Nr- ------'idll‘_ ' A s:' \.122ft- . _� a `p`- F' r 1 '-, - ... '.1••i( n1t' `1;.` `rPV L. \� 1� I' �P. �` �• Nligtt,• .. 1\, ` d -moo\\ ; ' !< ..• 1/�1 7 J. • .. '�T ram; . \` ICI . 1• :. •VYJ 1 •1`C z .A 6,6 \lI .N. ",, y4:.,••\ .\ v'. /am — :t.•`\-.. • 1 1.......•,,.E ki4.i_i......4.'V• ''•=DY . •1-- / . . I•_ . '1�:1,•; r • . �J • ]\ \ •• • ' »,o NTbN l0 .,, . \.L,..h.\,..•..\..:.d.• kF...,.tN.l,.tkII..LVo r. Kr* .\-~ ;:pRlM RAJ'd0t ' •:'• •f:. .1 ...•-': '1 :..•*••-,.;„;..,.\,:, .N.i-alo r.' -4 A" :i1., ••• `:• iT1 ` , ' May Creek Basin \I . ., T - ,a :: g%.• �o S^ 1c. EXHIBIT II DOWNSTREAM ANALYSIS THE PRELIMINARY PLAT OF WHISPERING PINES • May 6, 1995 Gy GQi WAsy, O Of ?, tz4 MCAO .73 R, 30725~` rsE° ' SS/ONAL G • EXPIRES 3/3/14 • PREPARED BY: Lance Y.K. Gyotoku,P.E. 16 The Plat of Whispering Pines Downstream Analysis REACH PARK 35TH ST Z I " I MT + '„�I N 3(TN T � - TT TT E A �pM = 3ND rt %a' E KENNYDALD " ! iZ ! mrmiii II^_____- - q N 7Et :�t, l E TIISTHST h i n . ton I\IIN\ ; =•Sr, NE 2 E R!•Pl 6,S `5 N! T1 . I< i" f xEn M -t Et w.: 1 tagAst to n K 4I :7-4 Is I '; ' i, ' Al,.Y`' . -i- Nf A6, T sa ;!4i.. .e, _ N 4.r Z NTH 1 C + ^ SI RHT • �`4 I I ..,.,, i g . ..��.. NEW 12T ' T T ST I • 44-�Lr`;a. Z STD f 3 ST IISTN 1 I w CC) NE IRTN i A��1 :. ! •.T LAUNCH S E k s I�• a 1 NOlING 1� y ui N! N11N [ST S 117T STkt, R[IITDN / /' mIN!1TH PS 117TM P.Mi ` __ .7 _ IMS 2E'_ ST U ' 11l111nI 1 us 2 i� ti•.a RENR' ON A E��1. a'F 1 b s L 1 I d n. N7Tj✓ST © 7b ! ❑s s�•ST Z TTE ' 11 K:•,,,,,,ERS Rt x � 2 c+, "1 12 •PL •�> g 1 < r a _ ST 1N m 1:' m :' NTH V ~3,�r� r>STH A to on !$ w ig 1 # ..,,• N sT" i ' ,4, N5 :\I, n ` ^8. IT r ... R i ,: Figure 1: Vicinity Map Not to Scale J The Plat of Whispering Pines Downstream Analysis Project Overview The site is located on the east side of Jones Avenue NE between NE 28th Street and NE 24th Street and is composed of approximately 2.7 acres. The proposed development will consist of 11 single-family residential lots, with a cul-de-sac public road and detention system. Site Conditions The site is consists of mainly cleared land with a 2 story barn. There is a high point near the westerly third of the site that slopes to the West at 6%. To the East the grade falls generally east at a slope of 6.5% until the defined bank near the northeast corner at which point the grade drops 14 feet in roughly 25 feet. The site would be classified as pasture land with very poor vegetation coverage. The area of the Northeast of the bank is undeveloped and would be considered young second growth. Existing Drainage The site is located within the Cedar River Drainage Basin, and the East Lake Washington Sub- Basin. Runoff from this site presently sheetflows the East and to the West. There are no drainage conveyance structures, swales, or ditches onsite to channelize flow., The site probably infiltrates rainfall from smaller storms, and sheetflows the larger storm events. Proposed Drainage The proposed plat will provide an underground drainage system that will collect runoff and direct it to the detention tank located in the cul-de-sac. This tank will outflow into a grass-lined biofiltration system and ultimately discharge to the low point of the site (the northeast corner). The vault and biofiltration system will be sized using the current City of Renton design standards. Downstream Analysis The proposed storm system will discharge into the low point of the site located at the bottom of the bank near the northeast corner. The runoff enters a wetland-type area that is very heavily vegetated. A slight ditch is present in this area and runs in a northerly direction for roughly 210 feet at a very gradual, flat slope. (Please refer to Figure 2, Point "A") This ditch has bottom width that varies from 2 to 5 feet with a depth that also varies from 0.5 to 1.0 feet. The area surrounding this ditch is very low and wooded. There is no evidence of erosion or very heavy flows. This drainage course then intersects NE 27th Street where it enters a 24" CMP culvert. (Point"B") This culvert is partially blocked with debris. The headwall created by NE 27th Street roughly extends 3 feet above the culvert. This culvert crosses NE 27th Street in a northwesterly direction where it terminates in a manhole. This manhole discharges into a heavily landscaped ornamental pond/stream system located on private property. (Point "C") The pond and stream are located approximately 4 feet vertically and 20 feet horizontally from the property owner's homes. This drainage course continues to wind thru private property in a northerly direction for about 300 feet. The drainage course then intersects NE 29th Court. The drainage course now has a section with a bottom width of 1.5 feet, and vertical 2 foot high rockery-type side walls. From these rockery walls, the grade extends up at a 2:1 slope to an additional depth. of 7 feet. These. side slopes are covered with mowed grass in very good condition. (Point "D") The channel enters a 24" CMP pipe and crosses the street. The 24" CMP inlet seemed to be in good working order. (Point "E") From this pipe the drainage system enters the Canyon Oaks Townhome Development. The outfall is located in the back of the buildings, roughly 150 feet from the 24" CMP inlet. It is not known exactly where the conveyance pipes are on this property. 18 The Plat of Whispering Pines Downstream Analysis It is believed that the drainage course discharges from a 36" CMP pipe which daylights from a steep slope. (Point "F") The runoff discharges into an energy-dissipation pool approximately 5 feet in diameter. (Point "G") The runoff then overflows from the pool into a very defined, heavily vegetated and wooded channel that is sloped at roughly 2.5:1 and runs northeasterly toward May Creek. This area was not easily accessible for further observation due to the slope. There seemed to be no evidence throughout this downstream course of any erosion or drainage problems. It is assumed that the 24" culvert at NE 27th Street does backup and accumulate some water depth due to the debris at the inlet. Due to the ample height of the headwall and surrounding area, this does not seem to be a problem. This proposed development will not have a significant impact on the downstream properties with respect to erosion or capacity. Further research of city and county records will be necessary to analyze the remaining downstream drainage system. • • 19 The Plat of Whispering Pines Downstream Analysis ry 1 4.,4 20 U x-10 r ��9.31 I 369 \--, MAY z CREEK I , P I 1 368./6 50.95 y 58� " 57 Zoa .;.-- R • 1 31 65 67 I II P 0 S E D ' I \ , I C I''R E E 130 S_I oz , -----�GiSf , 60294 -------- I o i 55 ; 54 TR I"A" �,�3 11 K I I �= f Aa NI PARK & F 4 ``�`\ \.. Yi.p-Ise ° VJ I 1 •- 'sty I 0 _m` .a . 7p1.t 1l0 6 � i' of -w N - . TI •-- II*`.` Q1 FORM R / �.\�\ yei.4+ 3.14 r 'yam 413i41E6 6° ° �' 5 I o ass C 9dr ,, A 515 53 1 i� 5 Z 6 = ti -Il Cl. u76 5s b C' ai 50 2 6 .. \ 5991 `��' �6o69r ® \' N d •'� '2-. EgST-A �TES �:, 10 9 8 s 7 a 6 39� �•\ _. l P i i5M` L 1501• .r.��. 7 .�'Do S ,04.-- • � • :s i -136t3 Iv 8-5— f 73 7o 1 ;o I 126./5 ry l2�r5 �ti3 I 76 l oo 6J 5 7os 7S 74.SZ -0 cc\; (A) a, 3tei � I la I $' 1 I�, ,� � Q A 02� I ' 259 �' 1 $ ''�� , �� co 1 I III 7�! Iv! f �iJ/ I Z N 27 .v1� # I I 1 i 1 Q I h A A, ^, o 1 I 1 I r1 I 2 17 7 i 180 1 !98 '��I l.� 70 .... ' 1 53 r' ' C 1 to 279 O ! o e �� ! I i v 1 89.3 r• 3 53 n ! i �I 1 es. wI 1 /jig/ 2S i i.: , i !oo ( 65 J /00 1 772 I 3 : 2 5,`7 �s �{.{�E. �.y� .mot _ �_ L 300 � � �iI I� q a ` .6 _4 I •r ,Iw 17 r' N 7 y {NtJ I I A 25t 1 ^�^ 2 51''') !!..1 ' '.—.1 iao 30 ri Soo '25 [87 !S .3 6 i"v 3 zo 117 11r.S1 : 252.3 a (A) I ; 8 • 2 25 0� ` ti_ -•te wo7-1 R Figure 2: Downstream Analysis Exhibit Scale 1"=200' BEGINNING OF FILE FILE TinEid.te, .56Mfrt (72 ) fetheuer;godt-i 6kLipti,13- / - 8 97--1.35 . 4 ., - . - - ' .GEOTECHNICAL ENGINEERING.STUDY ," ..`. ' • . BENNETT PLAT.- , • 2612 JONES AVENUE NORTHEAST. ' RENTON, WASHINGTON I , . •�- E-76'24 22 May: ,:1997' ,- PREPARED FOR .• NANCY'BENNETT ' ' . ' Kyle-.R: Campbell, P:E: • • ; • Manager of•Geotechnical Services'- • . " -- , , • yAS �. • . 4 • . , . . , , / • 7' 47 .• • - . .', : • . • ' , = Douglas S. Lynne, P.E. .' . .' , . - ' - ' .. • , • ,• , - . ' Project'Engineer. - • , Earth Consultants, In.c • . , - ' • 1805, --136th Place Northeast, Suite 201 , . :t , " Bellevue,Washington 980,06 . , , .RECEIVEI - . (206) 643-3780 ' ' : .! ' . : SEA: 1 1' 1997 DEVELOPMENT PLANNING . ' CITY OF R�NTON IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL ENGINEERING REPORT More construction problems are caused by site subsur- technical engineers who then render an opinion about face conditions than any other factor.As troublesome as overall subsurface conditions,-their likely reaction to subsurface problems can be,their frequency and extent proposed construction activity,and appropriate founda- have been lessened considerably in recent years,due in tion design. Even under optimal circumstances actual large measure to programs and publications of ASFE/ conditions may differ from those inferred to exist, The Association of Engineering Firms Practicing in because no geotechnical engineer, no matter how the Geosciences. qualified,and no subsurface exploration program,no" The following suggestions and observations are offered matter how comprehensive,can reveal what is hidden by earth, rock and time.The actual interface between mate- to help you reduce the geotechnical-related delays, cost-overruns and other costly headaches that can rials may be far more gradual or abrupt than a report occur during a construction project. indicates.Actual conditions in areas not sampled may; differ from predictions. Nothing can be done to prevent the :. unanticipated,but steps can be taken to help minimize their A GEOTECHNICAL ENGINEERING impact. For this reason, most experienced owners retain their • REPORT IS BASED ON A UNIQUE SET geotechnical consultants through the construction stage,to iden- tify variances,conduct additional tests which may be OF PROJECT-SPECIFIC FACTORS - needed,and to recommend solutions to problems A geotechnical engineering report is based on a subsur- encountered on site. - face exploration plan designed to incorporate a unique set of project-specific factors.These typically include: SUBSURFACE CONDITIONS • the general nature of the structure involved, its size and CAN CHANGE configuration;the location of the structure on the site and its orientation; physical concomitants such as Subsurface conditions may be modified by constantly- ' access roads, parking lots,and underground utilities, changing natural forces. Because a geotechnical engi- and the level of additional risk which the dient assumed neering report is based on conditions which existed at the time of subsurface exploration,construction decisions by virtue of limitations imposed upon the exploratory program.To help avoid costly problems, consult the should not be based on a geotechnical engineering report whose geotechnical engineer.to determine how any factors adequacy may have been affected by time. Speak with the geo- - which change subsequent to the date of the report may technical consultant to learn if additional tests are affect its recommendations. advisable before construction starts. Unless your consulting geotechnical engineer indicates Construction operations at or adjacent to the site and otherwise, your geotechnical engineering report should not natural events such as floods,earthquakes or ground- - be used: water fluctuations may also affect subsurface conditions. •When the nature of the proposed structure is and, thus, the continuing adequacy of a geotechnical changed, for example, if an office building will be report.The geotechnical engineer should be kept apprised of any such events,and should be consulted to erected instead of a parking garage.or if a refriger- ated warehouse will be built instead of an unre- determine if additional tests are necessary. frigerated one; •when the size or configuration of the proposed GEOTECHNICAL SERVICES ARE structure is altered: PERFORMED FOR SPECIFIC PURPOSES •when•the location or orientation of the proposed structure is modified; AND PERSONS . •when there is a change of ownership.or Geotechnical engineers' reports are prepared to meet •for application to an adjacent site. the specific needs of specific individuals.A report pre- ' Geotechnical engineers cannot accept responsibility for problems pared for a consulting civil engineer may not be ade- - which may develop if they are not consulted after factors consid- quate for a construction contractor,or even some other ered in their report's development have changed. consulting civil engineer.Unless indicated otherwise. this report was prepared expressly for the client involved and expressly for purposes indicated by the dient. Use MOST GEOTECHNICAL "FINDINGS" by any other persons for any purpose,or by the client ARE PROFESSIONAL ESTIMATES for a different purpose, may result in problems. No indi- vidual other than the client should apply this report for its Site exploration identifies actual subsurface conditions intended purpose without first conferring with the geotechnical only at those points where samples are taken,when engineer. No person should apply this report for any purpose they are taken. Data derived through sampling and sub- other than that originally contemplated without first conferring sequent laboratory testing are extrapolated by geo- with the geotechnical engineer. Aft? pk, -(.141\ tEarth Consultants Inc. pp /) \, Geotechnical Engineers.Geologists&Environmental Scientists May 22, 1997 E-7624 Ms. Nancy Bennett 2612 Jones Avenue Northeast Renton, Washington 98056-2269 Dear Ms. Bennett: We are pleased to submit our report titled "Geotechnical Engineering Study, Proposed . Bennett Plat, 2612 Jones Avenue Northeast, Renton, Washington." This report presents the results of our field exploration, selective laboratory tests, and engineering analysis, as well as geotechnically related recommendations for the proposed site development. The purpose and scope of our study was outlined in our March 6, 1997 proposal. Based on the subsurface conditions encountered at the above referenced site, it is our opinion that the proposed residences may be supported by shallow spread footings bearing on structural fill or competent native soil, provided that the recommendations contained in this report are incorporated into the construction specifications. It should be noted that the lots in the southern portion of the plat have varying amounts of fill. This fill is not considered adequate to support the proposed residences due to its highly variable nature. If you or your consultants have any questions about the content of this report, or if we can be of further assistance, please call. Respectfully submitted, EARTH CONSULTANTS, INC. Kyle R. Campbell, P.E. Manager of Geotechnical Services DSL/KRC/kml 1805-136th Place N.E.,Suite 201,Bellevue,Washington 98005 Bellevue(206)643-3780 Seattle(206)464-1584 FAX(206)74-608-60 Tacoma(206)272-6608 TABLE OF CONTENTS E-7624 PAGE INTRODUCTION 1 General 1 Project Description 1 SITE CONDITIONS 2 Surface 2 Subsurface 2 Groundwater 3 Laboratory Testing _ 4 DISCUSSION AND RECOMMENDATIONS 4 General 4 Site Preparation and Grading 5 Foundations 6 Slab-on-Grade Floors 7 Seismic Design Considerations 8 Excavations and Slopes 8 Site Drainage 9 Infiltration 10 Backfill Procedures 11 Pavement Areas 11 LIMITATIONS 12 Additional Services 12 APPENDICES Appendix A Field Exploration Appendix B Laboratory Testing ILLUSTRATIONS Plate 1 Vicinity Map Plate 2 Test Pit Location Plan Plate 3 -Typical Footing Subdrain Detail Plate 4 Typical Utility Trench Fill Plate Al Legend Plates A2 through A14 Test Pit Logs Plates A15 and A 16 Boring Log Plates B1 and B2 Grain Size Analyses GEOTECHNICAL ENGINEERING STUDY PROPOSED BENNETT PLAT 2612 JONES AVENUE NORTHEAST RENTON, WASHINGTON E-7624 INTRODUCTION General This report presents the results of the geotechnical engineering study for the proposed Bennett Plat, 2612 Jones Avenue Northeast, Renton, Washington. The general location of the site is shown on the Vicinity Map, Plate 1 . The purpose of this study was to explore the subsurface conditions at the site and, based on the conditions encountered, to provide recommendations for site preparation, as well as present geotechnical information for the proposed site development. Project Description At the time our study was performed, the site, and exploratory locations were approximately as shown on the Test Pit Location Plan, Plate 2. Specific building locations were not available at the time of the exploration. _ We understand that it is proposed to build ten single-family residences on the plat. Although no specific design information was available at the time of this report, we anticipate the homes to be of one and two story, wood frame construction with conventional spread footing foundations. We anticipate the garages to be slab-on- grade. Grade modifications are anticipated to be minimal with the exception of the cul-de-sac entrance where cuts on the order of three feet may be required. Based upon our experience with similar structures in the past, we anticipate structural loading to fall within the following ranges, including maximum dead plus live loads: • Wall footings - 2 kips per lineal foot • Slab loads - 150 pounds per square foot (psf) If the above design criteria are incorrect or change, we should be notified and allowed to review our recommendations in light of actual design information. In any case, it is recommended that Earth Consultants, Inc. be retained to perform a general review of the final construction design. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 2 SITE CONDITIONS Surface The site is bounded by single-family residences on all sides. The cul-de-sac will have access from Jones Avenue on the west side of the parcel. The areal extent of the parcel is about two and two-thirds acres. At the time of the subsurface exploration, the site was developed with a small horse ranch with associated pasture, barn and fences. The plat is located behind two existing residences that front on Jones Avenue. The general drainage gradient at the site is down to the northeast towards the wetland area. The majority of the site is relatively flat. Two notable slopes at the site are in the northeast portion of the parcel and along the south property line. The northeast slope is about sixteen to eighteen feet high with an inclination of about thirty-five to forty percent. The slope along the south property line apparently is a cut slope with a height of about fourteen feet and an inclination of about fifty percent. The southern slope is located along the east half of the south property line. Subsurface The site was explored by excavating fourteen test pits at the approximate locations shown on Plate 2. Detailed descriptions of the conditions encountered at each location explored are presented on the test pit logs, Plates A2 through A14. A description of the field exploration methods is included in Appendix A. Below is a generalized description of the subsurface conditions encountered. We have also reviewed a boring log from AGRA, dated November 18, 1996 that is located on the site. The boring log is contained in Appendix A on Plates Al 5 and A16. In general, we observed four soil types at the subject site during our subsurface exploration. The soil types are fill, silt, sand and gravel. L Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 3 Fill Fill was observed in Test Pits TP-2 through TP-7, TP-11 and TP-12 to depths ranging from two and one-half (2.5) feet to greater than seven (7) feet. TP-6 did not penetrate through the fill at a depth of seven (7) feet. Large concrete slabs, metal debris, organics, brick and asphalt rubble was observed throughout the fills. The fill locally consisted of silty sand and gravel. In general, the fill was loose to medium dense; however, excavation of the fill was difficult due to the size of the debris. The fill is not considered suitable for use as structural fill or adequate for support of structures in its present condition. Silt (Unified Soil Classification ML) A silt layer was observed in Test Pits TP-4 and TP-8. In TP-4, the silt was beneath the fill between two and one-half (2.5) feet and four (4) feet in depth. In TP-8, the silt was observed from the surface to a depth of three (3) feet. In general the silt was observed to be medium dense to dense. Sand and Gravel The sand and gravel soils were observed at roughly the same depths beneath the fill and the silt. The sand was exposed at the surface in Test Pits TP-1, TP-9 and TP-13. The sand and gravel ranged from poorly graded to silty sand and gravel (SP to SM and GP-GM to GM) in soil classification based on the Unified Soil Classification system. These soils were observed to the maximum exploration depth of twelve (12) feet beneath the existing ground surface. The boring log shows the sand and gravel extending to thirty-six and one-half (36.5) feet below the existing ground surface. Groundwater Groundwater seepage was not observed during our site exploration. Groundwater levels were noted at eleven (11) feet below grade in the boring log on November 23, 1996. At the time of drilling, the water level was six (6) feet deeper. It is important to note that groundwater seepage is not constant; thus, one may expect fluctuations in the volume and location depending on the season, amount of rainfall, surface water runoff, and other factors. Generally, groundwater seepage is greater during the wetter winter months (typically October through May). Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 4 Laboratory Testing Laboratory tests were conducted on several representative soil samples to verify or modify the field soil classification of the units encountered and to evaluate the general physical properties and engineering characteristics of the soils encountered. Visual classifications were supplemented by index tests, such as sieve analysis and moisture content tests on representative samples. The results of laboratory tests performed on specific samples are provided either at the appropriate sample depth on the individual test pit log or on a separate data sheet contained in Appendix B. However, it is important to note that these test results may not accurately represent the overall in- situ soil conditions; our geotechnical recommendations are based on our interpretation of these test results. The soil samples for this project will be discarded after a period of fifteen (15) days following completion of this report, unless we are otherwise directed in writing. DISCUSSION AND RECOMMENDATIONS General Based on the results of our study, it is our opinion that the site can be developed generally as planned provided the recommendations contained in this report are incorporated into the final design. In our opinion, the proposed structures may be supported on spread footings bearing on structural fill or competent native soils. Lots 5 through 8 will likely require overexcavation of the existing fill. Overexcavation depths are dependent upon the conditions exposed at the time of construction, but a minimum depth of two feet will be necessary. These and other geotechnically related aspects of the project are discussed in the following sections of this report. This report has been prepared for specific application to this project only and in a • manner consistent with that level of care and skill ordinarily exercised by other members of the profession currently practicing under similar conditions in this area for the exclusive use of Ms. Nancy Bennett and her representatives. No warranty is expressed or implied. It is recommended that this report, in its entirety, be included in the project contract documents for the information of the contractor. Earth Consultants, Inc. • GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 5 Site Preparation and Grading Construction areas should be stripped and cleared of existing vegetation, fills, debris piles, existing structures, topsoil, and any other deleterious materials. Stripped organic materials should not be mixed with soils to be used as structural fill. Following the stripping and clearing procedures, the earthwork operations can commence to provide the design grades. The ground surface where structural fill is to be placed should be proofrolled. All proofrolling should be performed under the observation of a representative of ECI. Soil in any loose or soft areas, if recompacted and still excessively yielding, should be overexcavated and replaced with structural fill to a depth that will provide a stable base. Of the three soil types observed at the site, two are considered moisture sensitive. These soils are the silt and the gravel. To be considered moisture sensitive, the soil must have greater than five percent fines. The silt has in excess of fifty percent fines by definition and the gravels have in excess of five percent fines. As such, in an exposed condition they will become disturbed from normal construction activity especially when in a wet or saturated condition. Once disturbed, in a wet condition, they will be unsuitable for support of foundations or pavements. Therefore, during construction where these soils are exposed and will support new structures, care must be exercised not to disturb their condition. If disturbed conditions develop, the affected soils must be removed and replaced with structural fill. The depth of removal will be dependent on the level of disturbance developed during construction. Structural fill is defined as compacted fill placed under foundations, roadways, slabs, pavements, or any other load-bearing areas. Structural fill under foundations should be placed in horizontal lifts not exceeding twelve (12) inches in loose thickness and compacted to a minimum 90 percent of its maximum dry density in accordance with ASTM Test Designation D-1557 (Modified Proctor). The fill materials should be placed at or near the optimum moisture content. Fill under pavements and walks should also be placed in horizontal lifts and compacted to 90 percent of maximum density, except for the top twelve (12) inches which should be compacted to 95 percent of maximum density. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 6 Based on the laboratory test data, the moisture content of the majority of the native soil is between 4 and 16 percent. With the exception of the silt, native soil has fines contents between 4 and 14 percent. In our opinion, the majority of native soil appears to be suitable for use as structural fill in its present condition. Although the silt has a high fines content (greater than 50 percent),this soil may be suitable for use as structural fill provided its moisture content does not increase above optimum. Should the moisture contents increase above optimum, the moisture must be reduced to near optimum prior to use as structural fill. Should this not be possible, particularly in the silt, the soil should be removed from the site or used in landscaping areas. Due to the highly variable nature of the fill, the existing fill is not considered suitable for use as structural fill or for support of structures in its present condition. Structural fill which is to be placed in wet weather should consist of a granular material with a maximum size of three inches and no more than five percent fines passing the No.. 200 sieve, based on the minus 3/4-inch fraction. During dry weather, most compactible non-organic soil can be used as structural fill. It is recommended that structural fill planned for on site use be submitted for approval prior to import. Foundations Based on the encountered subsurface soil conditions, preliminary design criteria, and assuming compliance with the preceding Site Preparation and Grading section, the proposed structures may be supported on compacted fill or competent native soils. The foundation may be designed for an allowable soil bearing capacity of two thousand five hundred (2,500) pounds per square foot (psf) when bearing on structural fill or competent native soil. As noted previously, the fills exposed in the test pits on lots 5 through 8 are not considered suitable for support of structures or for use as structural fill. This recommendation is due to the highly variable nature of the fill with respect to size of constituents, type of constituents and lack of fill placement control. Foundations for Lots 5 through 8 should be supported by a minimum of two feet of structural fill, depending on the condition of the fill encountered in excavations. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 7 Footings should be at least twelve (12) inches in width and extend to a depth of at least eighteen (18) inches below the lowest adjacent finished subgrade or interior floor slab surface. For the above design criteria, total settlements are expected to be less than one inch. Differential settlements are expected to be less than one-half of an inch. The majority of the anticipated settlement should occur during construction as the dead loads are applied. The above allowable soil bearing values are for dead plus live loads and may be increased one-third for combined dead, live, wind, and seismic forces. It is recommended that footing excavations be observed by a representative of ECI, prior to placing forms or rebar, to verify that exposed soil conditions are as anticipated in this report, and/or provide suitable modifications in the design, as required. Lateral loads can be resisted by friction between the foundation and the supporting native or compacted fill subgrade or by passive earth pressure acting on the buried portions of the foundations. The foundations must be poured "neat" against the existing soil or backfilled with a compacted fill meeting the requirements of structural fill: • Passive pressure = 300 pcf equivalent fluid weight • Coefficient of friction = 0.40 Note that the above values include a factor of safety of 1 .5. Slab-on-Grade Floors Slab-on-grade floors may be supported on the existing competent soil or on structural fill. Should loose soil be present at the slab subgrade elevation, it should be compacted to the requirements of structural fill. Any disturbed subgrade soil must either be re-compacted or replaced with structural fill. Slabs should be provided with a minimum of four inches of free-draining sand or gravel. In areas where slab moisture is undesirable, a vapor barrier such as a 6-mil plastic membrane may be placed beneath the slab. Two inches of damp sand may be placed over the membrane for protection during construction and to aid in curing of the concrete. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 8 Seismic Design Considerations The Puget Sound region is classified as Seismic Zone 3 by the Uniform Building Code (UBC). The largest earthquakes in the Puget Sound region have been subcrustal events, ranging in depth from 30 to 55 miles. Such deep events have exhibited no surface faulting. The UBC earthquake regulations contain a static force procedure and a dynamic force procedure for design base shear calculations. Based on the encountered soil conditions, it is our opinion that a site coefficient of 1 .2 should be used for the static force procedure, as outlined in Section 1628 of the 1994 UBC. For the dynamic force procedure outline in Section 1629 of the 1994 UBC, the curve for Rock and Stiff Soils (soil type 1) should be used on Figure 16-3, Normalized Response Spectra Shapes. Liquefaction is a phenomenon in which soils lose all shear strength for short periods of time during an earthquake. The effects of liquefaction may be large total and/or differential settlement for structures with foundations founded in the liquefying soils. Groundshaking of sufficient duration results in the loss of grain to grain contact and rapid increase in pore water pressure, causing the soil to behave as a fluid for short periods of time. To have potential for liquefaction, a soil must be cohesionless with a grain size distribution of a specified range (generally sands and silt); it must be loose to medium-dense; it must be below the groundwater table; and it must be subject to sufficient magnitude and duration of groundshaking. Based on the subsurface information obtained during our field exploration, it is our opinion that the liquefaction potential at the site is negligible due to the relatively high density of the soils encountered and the absence of a groundwater table. Excavations and Slopes In no case should excavation slopes be greater than the limits specified in local, state and federal safety regulations. As described in the current Occupational Safety and Health Administration (OSHA) regulations, approximately the existing fills would classify as a Type "C", and the native soil would classify as Type "B". Therefore temporary cuts greater than four feet in height, should be sloped at an inclination no steeper than 1 .5H:1V in the existing fills and 1 H:1 V in the native soils. If slopes of Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 9 this inclination, or flatter, cannot be constructed, or if excavations greater than twenty (20) feet in depth are required, temporary shoring may be necessary. This shoring would help protect against slope or excavation collapse, and would provide protection to workmen in the excavation. If temporary shoring is required, we will be available to provide shoring design criteria, if requested. All permanent slopes should be inclined no greater than 2H:1V. If this inclination cannot be maintained, this office should be contacted to review the design and . construction criteria. We also recommend that all cut slopes be examined by Earth Consultants, Inc. during excavation to verify that conditions are as anticipated. Supplementary recommendations can then be developed, if needed, to improve the stability, including flattening of slopes or installation of drainage. In any case, water should not be allowed to flow uncontrolled over the top of any slopes. The existing fill slope in the northeast portion of the parcel should have normal erosion control measures, such as a silt fence, placed along the top of the slope. This will reduce the potential for erosion during construction. After construction, the ground surface above the slope should be sloped to drain away from the top of the slope. The above information has been provided solely as a service to our client. Under no circumstances should the above information be interpreted to mean that this office is assuming responsibility for construction site safety or the contractor's activities; such responsibility is not being implied and should not be inferred. Site Drainage Groundwater seepage was not encountered during our site exploration. Groundwater levels were noted at eleven (11) feet below grade in the boring log on November 23, 1996. At the time of drilling, the water level was six (6) feet deeper. We do not anticipate that groundwater levels will present construction related problems while excavating the foundations and the utilities. If groundwater seepage is encountered in any excavations during construction,the bottom of the excavation should be sloped to one or more shallow sump pits. The collected water can then be pumped from these pits to a positive and permanent discharge, such as a nearby storm drain. Earth Consultants, Inc. • GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 10 Depending on the magnitude of such seepage, it may also be necessary to interconnect the sump pits by a system of connector trenches. It is recommended that the appropriate locations of subsurface drains, if needed, be established during grading operations by this office, at which time the seepage areas may be more clearly defined. The site should be graded such that surface water is directed off the site. Water should not be allowed to stand in any area where structures, slabs or driveways are to be constructed. During construction, loose surfaces should be sealed at night by compacting the surface to reduce the potential for moisture infiltration into the soils. Final site grades should allow for drainage away from the structure foundations. The ground should be sloped at a gradient of three percent for a distance of at least ten feet away from the structures in landscape areas. This gradient may be reduced to two percent in paved areas. Footing drains should be installed around building perimeters, at or just below the invert of the footing, with a gradient sufficient to initiate flow. A typical detail is provided on Plate 3. Under no circumstances should roof downspout drain lines be connected to the footing drain system. All roof downspouts must be separately tightlined to discharge. Cleanouts should be installed at strategic locations to allow for periodic maintenance of the footing drain and downspout tightline systems. Infiltration Infiltration tests were performed during the subsurface exploration in Test Pits TP-10, TP-12, and TP-13. The following table summarizes the measured infiltration rate and location. Test Pit Depth Soil Type Infiltration Rate (inches/hour) TP-10 4.5 feet GP-GM > 100 TP-12 5.0 feet GM 75 TP-13 4.0 feet SP 20 Earth Consultants, Inc. • GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 11 The tests were performed in the coarser soils observed beneath the silt and existing fill. Rates provided in the previous table are the values measured in the field and do not include a factor-of-safety. Backfill Procedures Based on the soil conditions encountered, the soils expected to be exposed by utility excavations should provide adequate support for utilities. Utility trench backfill is a major concern in preventing settlement along utility alignments, particularly in. pavement areas. It is important that each section of utility line be adequately supported in the bedding material. The material should be hand tamped to ensure support is provided around the pipe haunches. Fill should be carefully placed and hand tamped to about twelve (12) inches above the crown of the pipe before any heavy compaction equipment is brought into use. The remainder of the trench backfill should be placed in lifts having a loose thickness of less than twelve (12) inches. A typical trench backfill section and compaction requirements for load supporting and non-load supporting areas is presented on Plate 4. Pavement Areas The adequacy of site pavements is related in part to the condition of the underlying subgrade. To provide a properly prepared subgrade for pavements, we recommend the subgrade be treated and prepared as described in the Site Preparation and Grading section of this report. This means at least the top twelve (12) inches of the subgrade should be compacted to 95 percent of the maximum dry density (per ASTM 1557). It is possible that some localized areas of soft, wet or unstable subgrade may still exist after this process. Therefore, a greater thickness of structural fill or crushed rock may be needed to stabilize these localized areas. We recommend the following pavement section for lightly loaded site pavements: - Two inches of asphalt concrete (AC) over four inches of crushed rock base (CRB) material, or - Two inches of AC over two inches of asphalt treated base (ATB) material. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY Ms. Nancy Bennett E-7624 May 22, 1997 Page 12 We can provide pavement sections for heavy traffic areas upon request. Asphalt concrete (AC), asphalt treated base (ATB), and crushed rock base (CRB) materials should conform to WSDOT specifications. All rock base should be compacted to at least 95 percent of the ASTM D-1557-78 laboratory test standard. LIMITATIONS Our recommendations and conclusions are based on the site materials observed, selective laboratory testing and engineering analyses, the design information provided to us by you, and our experience and engineering judgement. The conclusions and recommendations are professional opinions derived in a manner consistent with that level of care and skill ordinarily exercised by other members of the profession currently practicing under similar conditions in this area. No warranty is expressed or implied. The recommendations submitted in this report are based upon the data obtained from the test pits. Soil and groundwater conditions between test pits may vary from those encountered. The nature and extent of variations between our exploratory locations may not become evident until construction. If variations do appear, ECI should be requested to re-evaluate the recommendations of this report and to modify or verify them in writing prior to proceeding with the construction. Additional Services This office will be available to provide consultation services relating to review of the final design and specifications to verify that our recommendations have been properly interpreted and implemented in the approved construction plans and specifications. In addition, it is suggested that this office be retained to provide geotechnical services during construction to observe compliance with the design concepts and project specifications, and to facilitate design changes in the event subsurface conditions differ from those anticipated prior to the start of construction. It should be noted that it is generally in the best interests of the owner/client to maintain the same Soils Engineer during construction in order to obtain the project objective, with optimum quality control. Earth Consultants, Inc. ,;.•,;,:,irze.,7,-. or . ..... 7,7".7— i ..• :i .. ( .c. \ /7 ir,. :, 4 ••1 si 741 4 iT . 04 N, • I 4(i 4, w 1,1/ t , ,. 0,,.-", r.„m Jim ' .. .z -,..4- ..-.... .a t $1 f*Ti it *Pt...* t.‘. 70 1.., Kt , 38TH I NA( AC ,,, _... ., _.- - •--, `*--..qRI vr w. - e' .,.-- (IA P441r tr:V I r••.- 1 ' 1 ,..". lia-Z ..,• ' 5,4-..,404T1.......Iof ayrii, S i...t..,A' At kii#7.0tk # , It 36111 3 • r v.. tit 4 . ‘,. ..1. SE arm -4.1 1-,,- tftAlii,of i\OM An , AfIC asiii 47 4 i J p-...--- . '--- , lio. 1 ',5., - .,--# -, I-3 .., '''''6 i ( .• if 344TH ...r 23. . 1 ‘..}1 '''..j.1 ..,....A ‘-.VT‘4' • 4 , "4.; P )-1 1 1 Th 90 i 1 .,,i t I :0 3343 ST _ itAirt . i , A . i . • N 3151 ST : ! . ve- ers ...,_ Nt, 4,1S-! ....'t• i r." ,, —. 1 \114 $TH a1 -ST i 13 1 t44S1 CRLLK \ . .. ' 700 - ' ill 4 2Tti ',:bi 4 Alf; •C• •."--, ‘ NA f , _ .r.. ;.! 1,`i -4, „ & - . __, -, r" _ ,NE; _?Ell IN. • ._...... .1/4, ..._1,4 IS.r.....,...__ 4.4.0 41- ---',....'5f- - --- - --;..._ .z lit 1--- '' L?rri I r.T I. 1-- pit- . 4 -K =Ir., ,.-•• - t ...; .., ., K EA+Ai V CAL i = , :• •• ,.......g tit.i*LIFH.z it= =i , .i. . , ..., .,.... .- 2ATI* “,.1 ; • 4,..,"- ';-,-ir ce. lir, _ ._ =Ai ._ . ._,... 5f-t.:-.__- _: i t too 1 It , i t lit, 1 1 !, N ,c ,..i ,14.c-, i , ,.. ... .. irk '#„ cz:.- 2 - ,--• Cr: - -1' L.L. ' i '••• 5 Ur 21 ST 1:11_, .J0 . -. ; C4 - _ 11 41....E ' Z&Tti IC s #_,.4.,..-1 _t_=13.___ #--g‘t. l. • -1---- • 1- --T- ,...,[ wtrifv1 it .-..„ li ix:;• i HO # *6 21...; *) ?.C! i 1' Hk. pit. Lk! .41V 1. VLI ill 14 -' CP r... 'aSikel VI ' i .41k . (7,....t 1. --e! 00? a -.--, C..) , Z: .. , , tti, *„. _j 1Lv ..,Nowa ...c ‘„,,,,-, Jilj,41 )11W4 my . Eutt --- 7- I. .,, v. ,_, .F. au - L,-,7 .,,... 4.4 (-11' I:440 Earth Consultants inc. II 116i Geotechnical Engineers,Geologists&Environmental' Scientist (le, 11# Vicinity Map Bennett Plat Reference: King County/ Map 626 Renton, Washington By Thomas Brothers Maps Dated 1997 Drwn. GLS Date Apr.'97 Proj. No. 7624 Checked DS L Date 4/16/97 Plate 1 4 i . I W 260 260 250 240 ■ / Z j s s r - W Fenco . 0 Z ---I x . TP-8 W I ii -i- Manure Pile,..5- .r' jNlTP7 WETLAND Q i— 41'. Approximate Scale to i r - - I Kmom.TP-10 .- 0 30 60 120ft. , ZP) . ...._ [ 0 0 1C. -0 , . • a K c r ,r O \ -------------------------------- TP-6 CN V -o- 1♦- 240 250 -� 26th AVENUE N.E. . I B-10 250 1 b. " r 0O O O _�_ TP-11 LEGEND --_I LJ. TP-1+ TP-13 1--------1 TP-3 _;_ 260 TP-1 -:- Approximate Location of , , -0- I -Barn 1 -�- I TP-4 �; .,� ECI Test Pit, Proj. No. 1 j II TP-12 ' RockPileE-7624, Apr. 1997 s% \ ,. " " Fence — i ; Existing Building /' \ 2 L_� zoo. 2� 0 Proposed Lot Number • - . Sunset Hills . _o_ Approximate Location of ' Boring by Others 1 • did". �� i Test Pit Location Plan r �� - , a4 f Earth CO11SU1tantS Inc. \''�I.��t��i�F� �«� � „ ^� Bennett Plat Renton, Washington Proj No. 7624 I Drwn. GLS I Date Apr.'97 Checked DSL. I Date 4/16/97 I Plate 2 - ' o • • • • Slope To Drain P _ •• . •:.<: ., .. :;.: 7t e e••° •o f':o o O 1:" +f ▪ Wit"~ ':L O • O 6 in h min. -P� - 0'' !J: :d Oo•O40 • t�Jy O • O O -O O •O • • •-:• :':• -... :o• . .a;:%:..••.o. : 0 • 18 inch min. •.O-0..•. •e • -e.••. • .••••• •.:.'•:`„ •® e- O • • ; •:_':- •••• ▪.:;•. 'I..• ▪ .'.y�O.•e• ' O • -0 - 4 inch min. •:o ▪ • •••' Diameter - .• •�•O•.•• ▪ ;; Q • - O° ,o .O O O0 .°O• . o Perforated e • o - 0 Wrapped in Drainage :._▪ : _ : .• o•o e o • o° e e Fabric •• -' ▪ °^•o °•• o ° o e• •. • t 2 inch min. 2 inch min. / 4 inch max. 12 inch min. SCHEMATIC ONLY - NOT TO SCALE NOT A CONSTRUCTION DRAWING LEGEND r'= '< • Surface seal; native soil or other low permeability material. •-• ' -••.• Fine aggregate for Portland Cement Concrete; Section 9-03.1(2) of the WSDOT Specifications. ODrain pipe; perforated or slotted rigid PVC pipe laid with perforations or slots facing down;tight jointed;with a positive gradient. Do not use flexible corrugated plastic pipe. Do not tie building downspout drains into footing lines. Wrap with Mirafi 140 Filter Fabric or equivalent. • • Ip 44k\ TYPICAL FOOTING SUBDRAIN DETAIL tr(i0041) Earth Consultants InC. Bennett Plat Renton, Washington Proj. No. 7624 I Drwn. GLS I Date Apr.'97 Checked DSL I Date 4/16/97 I Plate 3 • Non-Load Supporting Floor Slab or • Areas Roadway Areas • I 0 - I' I • o ° d ° o ° ° Varies • °000 o 95 B o• o o• o o r • A 5y <_ I FootMinimum M nim m •95 :.i., - 1 Bac kfill - _^+n `• _ ▪ Varies °OOQo:CYOQ:ao b°�Q°.o�;f:o. Bedding O°°•o •°Q°•• i •°°oe ;d•V.�• °'`C Varies apo-o••: ooA�oQo. �Qo% oo 'D�0OooO a ��.{�O•.O-"00oQ.V.0pO oo �n0'O0 o° °•�6Q? CJi,o° ".Qed_oa":0-0•o°°o i • LEGEND: Asphalt or Concrete Pavement or Concrete Floor Slab , 0,0 oo.. 0 0 ° o.' Base Material or Base Rock •.;. ; ; ...;_ Backfill; Compacted On-Site Soil or Imparted Select Fill :,a;,r Material as Described in the Site Preparation of the General Earthwork Section of the Attached Report Text. 95 Minimum Percentage of Maximum Laboratory Dry Density as Determined by ASTM Test Method D 1557-78 (Modified Proctor), • Unless Otherwise Specified in the Attached Report Text. •. ..o Bedding Material; Material Type Depends on Type of Pipe and i°•0�o p• : Laying Conditions. Bedding Should Conform to the Manufacturers • Recommendations for the Type of Pipe Selected. • • ,p�• �� 441\ TYPICAL UTILITY TRENCH FILL s� Earth Consultants Inc. Bennett Plat U��1�1�� CegecMfdFi�gtnersGeol°{�Sts6Fnvlmnme1 sarnikts Renton, Washington Proj. No. 7624 `Drwn. . GLS I Date Apr.'97 Checked DSL I Date 4/16/97 I Plate 4 APPENDIX A E-7624 FIELD EXPLORATION Our field exploration was performed on March 21, 1997. The subsurface conditions at the site were explored by excavating thirteen test pits to a maximum depth of twelve feet below the existing ground surface. The test pits were excavated by Evans Brothers Construction, using a rubber-tire backhoe. • The approximate test pit locations were paced from existing landmarks. The locations of the test pits should be considered accurate only to the degree implied by the . method used. These approximate locations are shown on the Test Pit Location Plan, Plate 2. The field exploration was continuously monitored by an engineer from our firm, who classified the soils encountered and maintained a log of each test pit, obtained representative samples, and observed pertinent site features. • All samples were visually classified in accordance with the Unified Soil Classification System which is presented on Plate Al, Legend. Logs of the test pits are presented in the Appendix on Plates A2 through A15. The final logs represent our interpretations of the field logs and the results of the laboratory tests on field samples. The strati- fication lines on the logs represent the approximate boundaries between soil types. In actuality, the transitions may be more gradual. Representative soil samples were placed in closed containers and returned to our laboratory for further examination and testing. • Earth Consultants, Inc. • MAJOR DIVISIONS GRAPH LETTER TYPICAL DESCRIPTION SYMBOL SYMBOL , O CI 0 c GW Well-Graded Gravels,Gravel-Sand AndGra Clean Clean Gravels Q n d n 8 n gw Mixtures,Little Or No Fines Gravelly (little or no fines) 11111 II& M Soils , . . . GP Poorly Graded Gravels,Gravel- Coarse Grained 1; gp Sand Mixtures,Little Or No Fines Soils More Than GM Silty Gravels,Gravel-Sand- 50% Coarse Gravels With I' gm Silt Mixtures Fraction Fines(appreciable Retained On amount of fines) e f�i GC Clayey Gravels,Gravel-Sand- No.4 Sieve ' it gC Clay Mixtures Sand e ' SW Well-Graded Sands, Gravelly And Clean Sand o u' o SW Sands, Little Or No Fines Sandy (little or no fines) ;y.•:V1:;*;;. More Than w4i::::iii ::, ; SP Poorly-Graded Sands, Gravelly 50% Material Soils ' L•Q` :'<o:#;d::: ., Sp Sands, Little Or No Fines Larger Than More Than No.200 Sieve 50% Coarse ` SM Silty Sands.. Sand-Silt Mixtures Size Sands With Sm Fraction Fines(appreciable . '. ::` Passing No.4 amount of fines) SC - . Sieve �:�,,:�!!�f::.,� ,, SC Clayey Sands, Sand-Clay Mixtures ML Inorganic Silts&Very Fine Sands,Rock Flour,Silty- ml Clayey Fine Sands;Clayey Silts w/Slight Plasticity Fine Silts snit Clays Of Low To Medium Plasticity, Grained Arid Liquid Limit A CL Inorganic Soils � Clays Less Than 50 j CI Gravelly Clays, Sandy Clays, Silty Clays, Lean 11111111 OL Organic Silts And Organic I I I I OI Silty Clays Of Low Plasticity • MH Inorganic Silts, Micaceous Or Diatomaceous Fire More Than mh Sand Or Silty Soils 50% Material Silts Smaller Than And Liquid Limit CH Inorganic Clays Of High • No.200 Sieve Clays Greater Than 50 ch Plasticity, Fat Clays. Size • � OH Organic Clays Of Medium To'High / / / / /' Oh Plasticity, Organic Silts • Highly Organic Soils `41Z `,j PT Peat, Humus, Swamp Soils �, .2 n, :l r, pt With High Organic Contents • Topsoil '4,si'y 4', Humus And Duff Layer ♦♦♦♦♦♦ Fill ♦♦♦♦♦♦♦♦♦♦♦♦ Highly Variable Constituents ♦♦♦♦♦♦ • • • The discussion in the text of this report is necessary for a proper understanding of the nature • of the material presented in the attached logs. DUAL SYMBOLS are used to Indicate borderline soil classification. C TORVANE READING,tsf I 2'O.D.SPLIT SPOON SAMPLER qu PENETROMETER READING,tsf W MOISTURE,%dry weight • II 24"I.D. RING OR SHELBY TUBE SAMPLER P SAMPLER PUSHED * SAMPLE NOT RECOVERED i WATER OBSERVATION WELL . • pcf DRY DENSITY,lbs.per cubic ft. LL UQUID UMIT,% 2 DEPTH OF ENCOUNTERED GROUNDWATER PI PLASTIC INDEX DURING EXCAVATION T SUBSEQUENT GROUNDWATER LEVEL W/DATE + 'e? LEGEND 11�� , 1 Earth Consultants Inc. , ` (kvitx lilINUttUgiiw,rs.Gmlogb`is&IJ wink inlet ualSiwniws Proj. No. 7624 I Date Apr. '97 I Plate Al . \ Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by Date: Test Pit No.: 7624 DSL 3/21/97 TP-1 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: _ ® g . Surface Conditions: Grass a. 5 a a \ k ■ ■ Ca Wi � SP Brown poorly o� raded fine SAND, medium dense, moist • 96 AAP — Mtg ƒ 2 - .* 4 — i J s 12.5 • A & y « e • — . » 7 layer of«t a GP Gras poorly graded GRAVEL with sand,dense, mois . 3.6 a ?II g • ■ MeI . 441•110 VII -- -- 11 Test pit terminated at11:feet below eisinggrade. Nogroundwater . encountered during excavation. \ z n -4 . - - , • i Test Pit Log § t1:111 . Earth Consultants Inc. Bennett Plat . - . r xid/\r � _ . Renton,Washington -J P j.No. 7 2 Dwm GLS Date Apr.'97 Checked DSL Date 4 14 9 Plate A2 Subsurface conditions depicted represent our observations at the time and bman of this exploratory Nile,modified b engineering tests, &a�&md&mmetea not necessarily rpr»n&eooeum■and b2an ecmoa�@rpnb«■rtheuse or ( interpretation boe ai rmation presented on this log. `Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: • 7624 DSL 3/21/97 TP-2 • Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: .• o _ — 0 .c ° ; Surface Conditions: Bare w f .0 "1-a a .0 E — • E E (%) 3 5tL wl M 3 L o. 0 ..% SM FILL:Dark brown silty fine SAND with gravel,medium dense, moist, • 8.2 asphalt, brick and rubble — •• • • 12.0 i 3 SP-SM Brown poorly graded fine SAND with silt, medium dense, moist ACM 4• '- I GP-GM (6"layer of silt) 5 ini Brown poorly graded GRAVEL with silt and sand, medium dense to dense, moist• . • I 6 3.9 • 6 I ; n 7 -minor caving •• "• pt - •&ga w • w 6 ‘11 I •• • • • • I ▪ 10 Test pit terminated at 10.0 feet below existing grade. No groundwater encountered during excavation. P V —I . V AtTi., •pi, ii4h, Test Pit Log qiiti( Earth Consultants Inc. Bennett Plat • Pi NdF, Geolechnical Engbeer&Geoiogists&Envitornriergal Scientists Renton,Washington EL Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A3 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or • interpretation by others of information presented on this log. • Test Pit Log • Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: • 7624 DSL 3/21/97 TP-3 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: — ; • ; Surface Conditions: Grass Pasture w .0 *- • a .0 • (%) cDcn• 7 • : S o • SM FILL Dark brown silty fine SAND with gravel,dense, moist • 7.1 • 8 1 • • • • 2 111 • GM Brown silty GRAVEL with sand,dense, moist • 1, -cobbles -small boulders 4.. 5 SP Grades to brown poorly graded medium SAND with gravel,dense, moist 7.9 4;taiit 6 = -minor caving *;i4ei 7 • 5.1 ;NO 8 111 • 9 AN° El 10• Ill tra 11 III 12 Test pit terminated at 12.0 feet below existing grade. No groundwater encountered during excavation. v Test Pit Log h utdiii Earth Consultants Inc Bennett Plat 111 \up Nti Gaze:chilled Engineer,.Geologists&Envitonrotreal SCialt1903 Renton,Washington Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A4 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. 'Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 DSL 3/21/97 TP-4 • Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: u _ W — o t a rn c Surface Conditions: Grass ▪ . +: a u (%) ° a c w a O N ca U1 ••• SP-SM FILL: brown well graded fine SAND with silt and gravel, medium • • cTense, moist • •ii- •ii• 9.3 *••• 2 15.5 3 ML Brown and gray SILT,dense, moist -organic seams a rown SP B poorly p graded fine SAND, medium dense, moist »::e'.:' I GP Grades to brown poorl y y graded GRAVEL with sand,dense, moist •.•. 8 •• I•I • b 1lb I 9 5.2 •.•. •�•I • 10 — •.•• --1-1 11 Test pit terminated at 11.0 feet below existing grade. No groundwater encountered during excavation. • P Q .r v 444 Test Pit Log N ei a� Earth Consultants Inc. Bennett Plat �lli►' t11 t,iUJ Renton,Washington Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A5 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, accept and judgment. They are not necessarily representative of other times and locations.We cannot responsibility for the use or interpretation by others of information presented on this log. Test Pit Log • Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 DSL 3/21/97 TP-5 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: (2- .c ° — Surface Conditions: Bare W 2 • [1') 2 cl• e El- E W E 00 II 3 a IL' 01 3 L — vi •• SP-SM ALL:Brown poorly graded fine SAND with silt and gravel, loose, moist • =Pis, brick and asphalt debris (surface) 9.0 • •• 2 • •• • 3 — • • 4 — -caving • 5 SM Gray silty fine SAND with gravel,dense, moist 7.5 • • 6 — SP Brown poorly graded fine SAND, medium dense, moist - gag pRgp 8 n Ki:i4§::*;:,K:is• a • 9 ti4§:% 10 — 5 11 12 Test pit terminated at 12.0 feet below existing grade. No groundwater encountered during excavation. • • ct• /IT pi; 44IV Test Pit Log • c7i 110( ,A/M Earth Consultants Inc. Bennett Plat \I.Okiju Peciedmical Eligneets.Geologists&Enviscanzreal Scientists Renton,Washington -- a- Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A6 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. Test Pit Log Project Name: Sheet of • Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 , DSL 3/21/97 TP-6 Excavation Contactor. Ground Surface Elevation: Evans Brothers Notes: w =• c } ® rn o Surface Conditions: Sparse Grass a � at• a (%) • & •o & • N in •• • SM FILL-Brown silty fine SAND with gravel,loose to medium dense,moist 10.1 •�� •-•• � � 2 — tire and brick rubble 44: -concrete rubble (3"diameter) • •�• s — -metal debris ♦ . •�� . qry 4 — •�*•*• ♦ . Test pit terminated at 7.0 below existing g grade due to difficult excavating through rubble. No groundwater encountered during excavation. n tr «;i pay: 4.4kx. Test Pit Log 111 i d�7 II Earth Consultants Inc. Bennett Plat �1�1��1��/ Cedect T3+ ds.Ceobgise ta anvirco mrd Scientists Renton,Washington F Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A7 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. Test Pit Log • Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: • Date: Test Pit No.: 7624 DSL 3/21/97 TP-7 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: — • ta ; Surface Conditions: Grass 00 • gl • : 2 & L ta CO VJ • • SM ALL:Brown silty fine SAND with gravel, loose,moist • • • • 1 15.1 • . • • 2 - • • • , •••• SP-SM Brown poorly graded SAND with silt and gravel, medium dense, moist = 4 8.1 gft — 6 7 — - .7 108o 8 - 9 - 0 10 11 Test pit terminated at 11.0 feet below existing grade. No groundwater encountered during excavation. 1 AtTi •Pi: Akt. Test Pit Log (7, qb-11(;,,y1.4110 Earth Consultants Inc. Bennett Plat 111/ liff GeolectitiCal Englneas.GeologIstS&EnvItonmental Scientists Renton,Washington 0- Proj.No. 7624 Own. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A8 Subsurface conditions depicted_ represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 DSL 3/21/97 TP-8 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: W — o } ® ca o Surface Conditions: Grass Pasture O. •a +; a CIO (%) . a ® u. � ML Gray and brown SILT, medium dense, moist 19.5 1 2 • 1. 3 GP-GM Brown poorly graded GRAVEL with silt and sand, medium dense,wet ▪II -2'diameter boulder •5.9 .; a -caving iJ� 5 •• j• In 6 •. • •`• 7 •.• • . . 6.5 •b• 8 III •▪ I• 9 — 11111 10 Test p'It terminated at 10.0 feet below existing grade. No groundwater encountered during excavation. • a v 44I►V Test Pit Log 7 �� oh) Earth Consultants Inc. Bennett Plat Renton,Washington Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date. 4/14/97 Plate A9 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. . TestP■ Log Project Name: Sheet of • Bennett Plat 1 1 Job No. Logged b� Date: Test Pit No.: . 7624 DSL 3/21/97 TP-9 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: .c ® o Surface Conditions: Grass • % ii � ILat § k i ■ (4 $ SP k .12dRLL +tyrnlesan)rwnpoorly graded fine SAND, medium dense, moist " \ 1 — 8.9 § $ 2 -minor caving — : . Ak2 4 — :migiv�$ 5 _ at w a46 — 7 — • / • Ar f 8 — . • g Test pit term baedaa0%kbbweisinggrade. Nogonwme encountered durne excavation. • \ _ , . 44 TestPitLog a Earth Consultants Inc. Bennett Plat p �/� Renton,Washington Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate AO Subsurface conditions depicted represent our observations at the time and location of this exploratory hlem modified by engineering tests,ma�amdWdmmte are mlmce�r representative dother uma mdlocations.W cannot acceptresponsibility t the use or interpretation by others oinformation presented on this log. • Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: • 7624 DSL 3/21/97 TP-10 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: o _ W L o .c ° N c Surface Conditions: Grass Pasture a � O. a 0 .0 • (%) / a e U. i OL Vl CA Vl ML Gray and brown SILT, medium dense, moist 1 - 2 3 i 1 7 1 4 GP-GM Brown poorly graded GRAVEL with silt and sand, medium dense, moist Test pit terminated at 4.5 feet below existing grade. No groundwater encountered during excavation. n ♦ pa': 44kV Test Pit Log d4 I` Earth Consultants Inc. Bennett Plat nN I11)4/ \t ;j a� Renton,Washington e gto J Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate Al Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 DSL 3/21/97 TP-11 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: o _ w t .c+ • ! co o Surface Conditions: Grass Pasture IL a i- d U (%) A , e !L, w g & LL 0 , 0 ••� SM i! Gray silty fine SAND with gravel, medium dense ♦♦ •�• •• • •• 2 • 3 — -concrete rubble(broken 4'-6'slabs) •�� -remnant of 55-gallon drum (rusted out) • 4 -metal debris •�i�i� 5 Test pit terminated at 5.0 feet below existing grade. No groundwater encountered during excavation. • • ♦ /on E��: Akv Test Pit Log �� y`d�i Earth Consultants Inc. Bennett Plat Renton,Washington J Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate Al2 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. 'Test Pit Log • Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by: Date: Test Pit No.: 7624 DSL 3/21/97 TP-12 Excavation Contactor: Ground Surface Elevation: Evans Brothers Notes: w — o 2 + - a° N o Surface Conditions: Grass Pasture a aa U � (%) r a MU' A 7 LL N G N SM F1W Gray silty fine SAND with gravel,dense, moist ♦♦ ii♦i �*4* i♦♦♦i♦ 2 al 3 GM Brown silty GRAVEL with sand, medium dense, moist 4 .14 1r1 5 s Test pit terminated at 6.0 feet below existing grade. No groundwater encountered during excavation. N 1 ��r►.,11 . 4.41\. Test Pit Log qpif `f�Ytxi Earth Consultants Inc.onmental C Bennett Plat Renton,Washington -J a Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A13 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. 'Test Pit Log Project Name: Sheet of Bennett Plat 1 1 Job No. Logged by. Date: Test Pit No.: . 7624 DSL 3/21/97 TP-13 Excavation Contactor. Ground Surface Elevation: Evans Brothers Notes: — r ° rn o Surface Conditions: Sparse Grass w r .0 '-a. ' a u o.(%) L o u. a ea H N (n WOW aW SP (4"of FILL•dark gray silty fine sand with gravel) Brown poorly graded fine SAND, medium dense, moist Q'•i:•i .:•o.:::t:t : 2 — Test pit terminated at 4.0 feet below existing grade. No groundwater encountered during excavation. • • a v -p; d41V. Test Pit Log N �� a� /1 Earth Consultants Inc. Bennett Plat r Sth'(�+1/`��/ C�eotechnical meets.Ceobylsts 4 Enviraurrntal Scientists Renton,Washington J a Proj.No. 7624 Dwn. GLS Date Apr.'97 Checked DSL Date 4/14/97 Plate A14 Subsurface conditions depicted represent our observations at the time and location of this exploratory hole,modified by engineering tests, analysis and judgment. They are not necessarily representative of other times and locations.We cannot accept responsibility for the use or interpretation by others of information presented on this log. • PROJECT: East Kennydale Interceptor w.o. 6-917-10292E3 BORING NO. B-10 SOIL DESCRIPTION in a a a PENETRATION RESISTANCE tti a..1 m 6 Page 1 •t I.5. Location: Pasture area o A L. of 2< • R e Standard Blows per foot Other Approximate ground surface elevation: 262 feet u2 ° '' 0 tO 20 30 40 . 50 TESTING - 0 Topsoil .—_-- and Grass ' •• • Loose,damp,gray,silly,fine SAND with trace to • - ' • •. • - some fine gravel(RiD : •. : : • • . .. , • .. - - . . ' .. ‘. = , •• - • - 5 - _ — • • . _ • S-7 _ . - " . \:•:: . . .. - . • . . . _ : \ Medium dense,damp to moist,brown,fine to , - ..i • . . •• . _ .::• - io - coarse,sandy,fine to coarse GRAVEL with trace : ' ' •__ • - .i oi•••• •••!...'•-:-- •.• •. . - ...ca. . , sat _ 1 5-2 0._ , IMIMMI• IMO -` • .- -....... . . . i. . , ' ..... " 15 — Grades to fine to medltrm GRAVEL. _._ • • . - • S-3V. ' • 11/23/96 . • , • • •Grades with trace cobbles . - ----- • " ' • . : n . •• 20 - - _ ' • ' _ •. S-4 ., •. II. •• . . , . AID Medium dense,saturated,brown,fine SAND with • trace slit,trace fine gravel and moderately . . . dilatant . • - 25 - . — • . _ S-5 Sand Is coarser,still.ilhe gravel _ S-6 - • .... 1.1 •. ., _____ ; • (continued) - 30 '40 60 ao 1100 ii 6 20 LEGEND MOISTURE CONTENT Observation well 1' • 1 1 .§ I 2.00-inch OD split-spoon sample I Seal Plastic limit Natural Liquid limit 1,5 PVC casing 2 / AG R A .. . N/E No groundwater encountered .x. Groundwater level at Earth & Environmental E Azi• time of drilling . 12 11335 NE 122nd Way,Suite 11)O 1" •< 0Grain size analysis — Screen Kirkland,Washington 98034-6918 < Drilling method: HSA Hammer type: Automatic Date drilled: 18 November 1996 Logged by: BWG Plate A15 . •, .PROJECT: East Kennydale Interceptor . w.o. 6-917-10292B BORING NO. B-10 SOIL DESCRIPTION cc n PENETRATION RESISTANCE Page 2 to ul g • Location: Pasture area A of 2 a 1 2 5 Standard Blows per foot Other Approximate ground surface elevation: 262 feet CA vi 0 .0" 0 10 20 30 40 • 50 TESTING - 30 - Fine SAND(as above) . S-7 • UN lk S-S-89 " .... MIMI= •• IMIIIMII 'MI I . .. • • — • • . . - , * ----------- ----1.----- --- ----. , • ingismin Boring terminated at approximately . . • — ., . 36.5 feet - . . ,. . . . ,•, - - • . • i . .• . . . . . .. . . . .. . — . ... . . . . .. .. . ,. . . ., ... • . • ... - , - • . , ... : • : — . . • : • :. .. . ,-- • -, - 45 -\ • — - : . : . . ; • . • . • • . ,. . - - , 1 r - _ . ,--------7----- ' , -. . 50 - — — . •: ' • • . . . : : . . . : . . - • • . • . . : . ,. - • .. . . . .. . ,. . . 1 _ 0 20 40 60 80 100 MOISTURE ,__ • • I (Ci • TURE CONTENT LEGEND ' . _' I Observation well I 0 i I2.00-inch OD split-spoon sample . I I Seal Plastic limit Natural Liquid limit c , tu PVC casing AGRA - •* NE No groundwater encountered ..x. Groundwater level at Earth & Environmental - 1 Ao time of drilling 11335 NE 122nd Way,Suite 100 : I g se Grain size analysis . ._ Screen Kirkland,Washington 98034-6918 . (.9 a Drilling method: . HSA Hammer type: Automatic Date drilled: 18 November 1996 Logged by: BWG Plate A16 • SIEVE ANALYSIS HYDROMETER ANALYSIS 0 SIZE OF OPENING IN INCHES I NUMBER OF MESH PER INCH,U.S,STANDARD GRAIN SIZE IN MM • 00 t0 N 0 ��' Og. z `' � N tD d M •N N'- r-cn�vim c j .� at OD O N M t� 000 N 0 Rs. O O • O O O O Q 0 N u 90 •Q _ 10 20 p Q) .D BO , •ti p m _ ! n _ • m 0-4 m 70 •• '•\. 30 n m r P O —I �n 1 1`•`% Z En 40 —I iCnc -11 60 i + 7 \ 5073 0 T. 50 1n d oo r'1•. m o t! -C �0 •�ti 60 7C1 -+ 40 W 30 \` © 70 m S 20 % - •`'�.• � 80 - m ` ` n b • Cl. 10 ••....0 90 CJ _ ✓ a I- I 1 11 1 1 1 I I III 1 I l 1 I 1 1 l_I�p s} �p a ��yy 100 �� ID ID DJ 0 0 O COCO �? M 0 O 00 !O s} M N .- 00.lO M N �• O' O O O O O O O O O O O O O O O O O rt w y GRAIN SIZE IN MILLIMETERS v y COBBLES COARSEGRAVEL FINE COARSE MEDIUM FINE FINES N SAND ' ct N corf 1-1 Boring or DEPTH DESCRIPTION Moisture N D KEY Test Pit No. (ft.) USCS Content (%) LL PL to 0 •.< .ter 0 m•fl N O TP-1 5 SP Brown poorly graded SAND 12.5 -- -- m rt m 0--- TP-2 6 . GP-GM Brown poorly graded GRAVEL with silt and sand 3.9 -- -- bo ~` 0 TP-4 2 SW-SM Dark brown well graded SAND with silt and gravel 9.3 -- -- SIEVE AI HYDROMEGRAITER ANALYSIS I SIZE OF OPENING IN INCHES NUMBEROF MESH PER INCH,U.S.STANDARD IN po O8 co � DO IR N M pp pp O O O O OOZ cN w � co N , , .o s4. N O l O O O1 o rr. rn e 290 �•• ....Ltr, 10 ,P ` S 20 a 3 m . \ , m m 70 ao n m p - z T 60 40 F __Cf) m o R. .-+ 50 50 03 IIN o oo m �'-� * 40 60 CO li 1° a = a0 G _ 70 ` ;�. _ n 20 - G-�\ 80 ...I ...6` a 10 �. O. -� 90 O — -•-, En ti I l l_I I I it I I_I I I 14 1 I I I I I I 1 I I I I l 1 1p s} �y 100 i� 6) M 0 0 O O o o o M N O CO 0 at M N " CO {O �t M N . O 4 `q O O O O O O O O to D M N GRAIN SIZE IN MILLIMETERS • O O O O O O 0 co o 2 COARSE I FINE COARSE I MEDIUMSAND [ FINE FINES cp - o _n COBBLES GRAVEL O N w rt m Moisture Ab w N Z Boring or DEPTH DESCRIPTION 0 Ai D KEY Test Pit No. ({t,) USCS Content (%1 LL PL o cn ..., 0 m • cn -u 0 TP-7 4 SP-SM Brown poorly graded SANd with silt and gravel 8.1 -- -- m m 6---- TP-8 4 GP-GM Brown poorly graded GRAVEL with silt and sand 5.9 -- -- on N 0......•••• TP-9 1 SP Brown poorly graded SAND • - 8.9. -- -- f DISTRIBUTION E-7624 • • 4 Copies Ms. Nancy Bennett 2612 Jones Avenue Northeast Renton, Washington 98056-2269 2 Copies The Olds Group 4620 200th Street Southwest Lynnwood, Washington 98036 Attention: Mr. Bob O'Connell • Earth Consultants, Inc.