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LUA00-068
• • • i EMI L it - , ` • .. ,c3„) ........1N vt,. Ir Nikon2rVJ2R et_� j r v �O 0 l e - 0 .w., , �� `'r' ► 4. o,i6AL PIPE LINE -� COMPANY EIr.�', -u -�"4 `_",i, r j�Ytl VM E `, �,.:J-- 2 YR.FLOOD ELEVATION ff T(- • ,0(,,.".� l- APPROX.OF EL.NTO.N PER ,_ _ �I r. . `, - CITY OF RENTON DATA I -- -1. ,t -' ' �4 7Vw.a\:emu. N ,, .,7 YTS- - •4'�t� 1q�j .a'.5.y�` ` /UNNA`DRAINAGE CHANNEL< r-r I i -Hill-, CL St PROJECT -- - L.. ` H=i-41— k j� ,, � SATE I� (W ETLAN ) a J.'I''-2---, , fT V•fil III i'.. / 911.Or��-_.—� • DES NE �-J(IJ.L' /, /I.'t S _ RENfON f%Y __ !�r_ —._�MOINESf- �, /� ..�"�.. - 1 I{P-i_-rT I ul. - . Y,. WETLAND j" 1 cn �r "y" T'T-' ID EXISTING CHAIN LINK i•' 'k•,t v Ih / ~ ' L c , �,��* I FENCE.PROJECT SITE .. % 1.1 1[7,,114' f BOUNDARY AND LIMIT ,;�" I:� , �, I 5 DRAWING INDEX OF CONSTRUCTION AREA ; 't ,oN Ig 'I ■ �� -'• iin DWG No. DRAWING TITLE SHT No. AUTOCAD FILE No. 1J.1. F„1� _ n� GENERAL DRAWINGS WETLAND BOUNDARY . • ,:Al,,c I`, 4 ��,y T-OI TITLE SHEET. VICINITY MAP, DRAWING LIST _ `y - i.��rr/ ,T` G-01 GENERAL NOTES, EROSION CONTROL NOTES, TECHNICAL SPECS I"BITp'_'I �'1 .`• I m '. C-01 SITE PLAN �'�j I--' N I APPROX.100 YEAR Ti;k� •�%--•CLam! �� '�' ill C-02 DETAIL SHEET /y��;\'{ F" ( 1-� -�" - C-03 DETAIL SHEET • FLOODPL 00 BOUNDARY - r{t- �_. I, Eu S-01 STRUCTURAL DETAILS _903.30' el `UK _ "Y'£r Ii�Sln-'y'..'7 ice.'..11 -.-,',#+ .I •",1 1 `5:i,1, 1 VICINITY MAP SITE MAP HORIZONTAL DATUM: ENGINEER OLYMPIC PIPE LINE COMPANY TH AVENUE SOUTH • VERTICAL DATUM: DRAFTER 2319 and Avenue S.W. lam Renton,Washington FEDERAL WAY,WASHINGTON ENGINEERING TITLE SHEET BERGER/ARAM VOICE2600 NOTE BOOKS: CHECK RENTON STATION VAX (2206)431-2300 DRAFTIING DRAINAGE IMPROVEMENT PROJECT ENGINEERS FAX 206 31-2250 NO. REVISIONM TM BY CHECKED APPROVED R ADICD ff IS EXPRESSLY FURNISHED DIE DRAWING. APPROVED DATE ( H no TR SRAM ACE NO•S: SCALE: STA. TO M.P.NG STA. 6 REV.NO. REFERENCE DRAWINGS AND ANV COPIES THEREOFF(PARDAL OR COMPLE▪ TE• )PSHALL BE RETURNED TO THE OWNER ON DEMAND. NONE IDR T-1 I 0 y 25.WOO of Jz{aa er¢wn., lie xae aI200Dlr0008.1 001.5,....neefey S.e., r _ -4 W �c glwl -110,10 RN: gggpg- 3� gg .10M P:.., W W� 0,Ag �'.. q;151.. 'gal, ......... INSM-41 owl Aw CD F. co MR 14 VN- th Ha IL nz Olympic Pipeline co INS 2 Ad; Project Site, th It cz ��� IS No u/ ���� 30 OU1NPIC PIPELINE COMPANY RENTON8TATON ' ---- DRAINAGE IMPROVEMENT PROJECT � wvnh U evao Existing land mmmprojemsitemmvicinity— VALVES �2 (NORMALLY CLOSED) SPILL CONTAINMENT DRAINS!SEE I I DETAIL(). TAP 9 LOCATIONS I 1 I Fv STING 1:%3I',+G.POLLS i- ------ WETLAND BOUNDARY __. _\BP __ \� �Frm ---- --- BURIED IMPERVIOUS LINER ,8,-,.,,.1,J ' •'.• I.7.;e N'GC'.I,I.,,I_ / \� ! / I c,No ,. `O =W_t '7-*`rr.4V-M_K'.: i-i-i 7 -_.-i r ' \_ �,/1/�i pyp� 2 07s( PROPERTY LINE f t m i, L T _ _ / KI 4"..PERFORATED DRAIN PIPE; _---_S�"-`-���i 1__1...:' 21.2� ///5�� � 7� II I I I • I 1Bsb /?rqT\.... I - C\CRETE-PAD ARO/D411-5 s EII18.-'Q�_ �r��� 1 � - -/ // -2810 1 I /=/J���/7s)-18.50 . r .(I �/' //� pak.04fr, . 01 ( E• I; i�l`��� ��1� ��: 1� RIM EL 2{.7 ( --__ i'// ® I �/.,'*6?' .../r/ ..0,, 41 ` / / T IE oUT(S1 19.00 - --- -- --I .J I �� _ _I�� �j/�/PllrA� /' r r / h ( � _ 20.00 r� 1•r.\/90945fOLY,"IC ,J L. I I O ( ILIA ,--- - - - 111 (11-11_ r� ° ;PIPED, o- III11I - 111 319isf rR�- 4' , "_" L". t,a :I,9STAL]:.a l 'I \ II III n .m', ., III IMPERMEABLE LINER�I ,' a l I n I IN CONTAINMENT AREA i\ ;lull ark w - _ //' / i^ram /;, II ;1l II /e1 11 IV G, 1 i7G+Y Y ,.I'_-U!"r'1 I. E1 10 000 BBLS CA ACITY N ;NIIIII -- III I 'I\ LL 5 PCO , CB'2 L i.4. 1- I--I [I GASOLINE/DIESEL TANK, I II F' \ >F� 2 ` �-y l,1,II,' a4 JUYU','/G ? /� RIM EL 22.0 LI f Illlll ', _ llllll , I" mo A o u' _ IE IN(NE)18.49 J COSTING SPILL CONTAINMENT BERM /� ��, - Inl 1 14 nm - � '.� IE OUTW)18.49 'I d J 'y;l ,''Iiilllll / i_I_.---��ALL GL �I'-" tFpS i \ .-i+ / ' �I, o P/ I- NORTH DRANAGE AREA - -071 .. ._ / I I,I'I�1.•'P' I11I,/%//////,yL -L f S�'.1 �J .�/�jL�> .7-- 1 T+� ��������� PAVEMENT REMOVAL / m '.I I(i I/IIII, -- - 111 ��',% 'm'� . .I 4 f �I B ''S - _I; �"�.,lj`F+I'�'', -.) I I I ; C 6�•�����A AND REPLACEMENT. 50'WETLAND BUFFER ( I, II Ill r lDRAINAGE BOUNDARY C-13 30_ ""`"""' Ii'. ( III',. �I I 1 �" _l' Ic:,r ///���lull _Ii RIM_ EL 2_2.0 'l`y' 1 t\\�\ , rol Z7 / F1tSOUTH IE IN NE)17.82 i •"-4 /til GRAVEL WITH LINER WETLAND BOUNDARY I Il I - -_= -r II I, x"FSI r. 'GRADE SEPARATION BERM j/ I' ,y, -___-_-_:_--_,1 21. p11 AREINAGEIE IN N)) 17.85 l'+� �--( / .I N H5.• AREA IE OUT(SW)17.65 L. 1 % �--I 1 „ __1E=0UT(S a/ I s'' I III;,; , / / --- 96 LF 10 PVC f.RIM EL 21.6 \/ / I' REPLACE ASPHALT 29 LF 10"PVC S=.005 FT//FT TT _�- �µ���"�F,l77 5=.005 FTfFT 1 I l' IE IN(N)17.61 {.�0-�! =�-= I ,IV ; I C NEW EMBANKMENT FOR I ?_ �'�_�' J` 4;.�t�v\ l IN(NE)16.12 _ _ -�`�. ,1 --i;}' ��� r •.�,It1___', - i DIE-OUT(W)16.1z _�r -. �r I STORMWATER RUNOFF ,/U '�� 1 [ .,,.-- CONTAINMENT POND /��' /.N ti�� 1 nm"R'`-"-, J ,531� G „(,r, 1 iCEI 7 J, 1 IIl 1 .`1T 1 1 • I.a +,I"I.!'C•nIVAGE :R4U✓2 -----_ qq p4 A 1 1/1 RIM EL.21,5 `� f 0 IP 11110.01 E lsso" _ II 1 1 Y P/G' �!Fli;Vf -----1---- II II I I/�I� ;L:1H; g IE ouT(s)19.8 I(,I( � �I;�+ � 'I 0o.000001l1 � 1 !1 �� 1 51- I YI� 11 MOM L J. _I I 1 -V G;i/ BJ/iU/-✓' r11�!/ i is ' 'fV=111� • �, li a I-I T'r�� 31=" =" �/I/ ;I, I r . G. m Oopti1,,,. i 1.,4.01_ �. f5.avv..�vT-I_.>�I!l �,,,„- G = S H--'-r-131) 1J ,I r /MH 2 /1 4Z„r�N LL • y e �I I��\\11\ rvyi e. o I I - F lRR Z`�,\ � �'_ -,�-I -\�.�, .^� I��F'�" I o ICI },a'T,I E o I ' POND \ I IlM IN NA CE',i ,1 I{ m 1, 1�-I F�v_vv vv»....,'.:.�\Z-4'.»v�_m•4 �U n IC;`I DISCHARGE ♦ • I A LESS RAMP I\ 1'' 1-`, `'.,' I' ( ��i r-_ _Ijjr�-- _ y N,,- -fir. EXISTING CHAIN LINK ' \ \�_ /�_ I! ��j�`\�/ Jl`I FENCE. PROJECT SITE r�,_ -f ry _ S / IJ BOUNDARY AND LIMIT I / i OF CONSTRUCTION TREAD\' ✓ wL_ III 75 LF 8"PVC ! ( Ea I l '''\\\\\\ I S=.0044F7 FT i' ��'�� \+ I50 +\ \-/� I Fyn CB I. / E I CB 11 9 \ //\// RIM rEL.21.5� _ d 1� 1 ffI`� RIM E11L'��1I22.0 1 BUFER\ ` l l E IN(N)1812 ~--. I u\ s1 IE OUT(Nj 17.9iI \\ / _ JE ouT(ES 19.12 --\ d 1 r \ TEMPORARY EROSION CONTROL ` \\ `/ 0 1 of FILTER FABRIC FENCE _ AND/OR HAY BALES ( I" I[ \ \ -T ALONG WEST BOUNDARY a �_ IJ OF PROJECT SITE. \ , _ D I- ��'1 of \7 \ -. I -.-+--.x-n-x-c*__x„,___x-x.�-r-y_K v-.- 1�;- -' // _-----___--____ ___ _ \ / _- RIGHT OF WAY v �,-�ik_<-.,_7.21:_,J___;:_v_ri.,11i; C9 PIMAf2'C1__ PROPERTY LINE _ _- lf'6'l. 1.=_75i- ------- --__ __ S68'25'33"E _ 1 30 0 30 60 SW 23rd R/W "� 9 R `�i =30' scale feet �L=22�?� ! I I -NDItIZONTAL DALio ENGINEER o,(y Pi= OLYMPIC PIPE LINE COMPANY 333019TH AVENUE SOUTH VERTICAL DATUM: • DRAFTER 9� YJt9 LnJ Aronue OW. FEDERAL WAY,WASHINGTON NAV00R SITE P L Wesnlnoton BERGE/t/ABAM ENGINEERING PLAN 9R003-2600 NDiE BWKS: CHECK RENTON STATION [x VOICE:FAX 1(06)431 22500 - - - REVISION ION TN�wn N IS THE soarnn OF a EXPRESSLY TOSSES CNRARING DRAINAGE IMPROVEMENT PROJECT FAX: (20fiH31-2250 TH. RETION T BY CUNEKCO APPROVEDTHIS DRAM.AND ALL APPROVED DALE M P. STA. TO M P. STA. SHALLOLYMPIC PIPE EXCEPT FOR R WHOCH N.ATE NO'S:NOT RE COPIED OR SCALE: DRAWING P. STA. rIREV.N0. r wn",a,�n er tea+ ra xm,e aIToOI rulumIA.o,I r-sleazy seew REFERENCE DRAWINGS AND ANY comes THEREOF INFORMATION oRCerourl[iE)sNAu SE RETURNED TO THE OWNER ON DEMAND. 1"=30• C-1 I 0 2 YR. FLOOD ELEVATION . APPROX. EL. 13.0 PER CITY OF RENTON DATA N Ln 1 UNNAMED DRAINAGE CHANNEL x WETLAND --....,_. [ cii P/L — _ 911.0T - .— — L — — — • — • — sK/ r, APPROX. 100 YEAR /L X a 9 x L FLOOD PLAIN BOUNDARY J/ 11 X -- -- I I I el N 4 WETLAND1 x G ; in EXISTING CHAIN LINK a ,o 0 o w FENCE. PROJECT SITE /I ix Ix o • ; v------ 1 E BOUNDARY AND LIMIT I I Uo[rurrc aane OF CONSTRUCTION AREA I WETLAND BOUNDARY \` i �450' e� i \ e I \ ❑ p \ x ' •x o o I I x x T. 903.30' o x _ FLOOD PLAIN MAP goo - 0 100 20( scale - feet 2 YR. FLOOD ELEVATION APPROX. EL. 13.0 PER CITY OF RENTON DATA I* o UNNAMED DRAINAGE CHANNEL > WETLAND �, I o I I � 7X� X- -T X y,% I fk i_ _ APPROX. 100 YEAR TX a 9 n Tx-, FLOOD PLAIN BOUNDARY 1' l+ x 1 CV i WETLAND �� x Q I in EXISTING CHAIN LINK ) FENCE. PROJECT SITE /Ix ' n x~ BOUNDARY AND LIMIT ( � —_' t `� 11-1-.OLYMPIC •'•PEUNf A OF CONSTRUCTION AREA I I OFRCE81R r'NG .I Iz �x , a WETLAND BOUNDARY �` ® :iii 1 -1\ L-KT o . 8 o I \ X,.= Q ❑� 0 \\/ 1 _ 903.30 - X . co - - H I I II I 1 100 0 100 20( FIGURE 2 , — — scale feet Smooth Feed SheetsTM Use template for 5160® Spieker Properties Lp Spieker Properties Lp City of Renton • 1150-114th Avenue SE 1150-114th Avenue SE 200 Mill Avenue South Bellevue,WA 98004 Bellevue,WA 98004 Renton,WA 98055 192305 9076 192305 9095 302305 9007 2201 Lind Avenue SW 2101 Lind Avenue SW 2301 Lind Avenue SW _ Renton,WA 98055 Renton,WA 98055 Renton,WA 98055 City of Seattle Texaco Trading and Transport Olympic Pipe Line Company 710 Second Avenue#9th P.O.Box 5568 P.O.Box 5568 Seattle,WA 98104 Denver,CO 80217 Denver,CO 80217 302305 9066 302305 9083 302305 9084 2251 Lind Avenue SW 2250 Lind Avenue SW 2319 Lind Avenue SW Renton,WA 98055 Renton,WA 98055 Renton,WA 98055 Olympic Pipe Line Company Olympic Pipe Line.Company Tosco Corporation P.O. Box 5568 P.O. Box 5568 72 Cummings Point Road Denver,CO 80217 Denver,CO 80127 Stamford,CT 06902 302305 9084 302305 9084 302305 9085 2319 Lind Avenue SW 2319 Lind Avenue SW 2423 Lind Avenue SW Renton,WA 98055 Renton,WA 98055 Renton,WA 98055 Tosco Corporation Attn: R.S. Dutton-Dc-48 Phoenix,AZ 85072 302305 9100 2323 Lind Avenue SW Renton,WA 98055 9.. { v Spieker Properties Lp t. Spieker Properties Lp City of Renton 1150-114th Avenue SE 1150-114th venue SE Mill Av ue South Bellevue,WA 98004 Bel ue, 98004 Ren 98055 192305 9 192305 30230 `2201 Lind Avenue SW 2101 nd Avenue SW 23 Lind Avenue SW Renton,WA 98055 R on,WA 98055 nton,WA 98055 City of Seattle Texaco Trading and Transport Olympic Pipe Line Company 710 Second Avenue /#9th, P.O. Box 5568 P.O. Box 5568 Seattle,WA 98104 �✓ Denver,CO 80217 Denver, CO 80217 302305 9066 302 302305 9 84 2251 Lind Avenue SW 2250 Lind Avenue SW 2319 Lind Avenue SW Renton,WA 98055 Renton,WA 98055 Renton,WA 98055 Olympic Pipe Line Company Olympic Pipe Line Company Tosco Corporation P. . Box 5568 P. . Box 55 8 72 Cummings Point Road V De ,C 217 Den 80127 Stamford,CT 0C902 302305 84 30230 4. 302305 9085 -® 231 ind nue SW 23 Lind A nue SW 2423 Lind Avenue SW _ nton,WA 9 055 nton,WA 98055 Renton,WA 98055 Tosco Corporation Attn: R.S. Dutton-Dc-48 v/ Phoenix,AZ 85072 9230.5 Sinn 2323 Lind Avenue SW Renton,WA 98055 AVERY® Address Labels Laser 5160® 0 > S 'eker Prope ies Lp I Spieker Properties Lp ' Ci of Rento 115 —114th venue SE 1150— 114th Avenue SE , 200 ill enue South Bellev ,W 98004 ' ' Bellevue,WA 98004 I ; Rento A 98055 192305 9 6 _— 192305 9095 , 30230 07 2201 Li A ue SW 2101 Lind Avenue SW ,( ),off ' ; 230 Lind enue SW Rento ,WA 980 5 i Renton,WA 98055 1 R nton,WA 9 055 Cit f Seatt Texaco Trading and Transport ( yinpic Pipe Li ompany ' ' 710 S on Avenue#9th ; ' P.O. Box 5568 i i P. Box 5568 Seattle, A 98104 Denver, CO 80217 ' Deny , C 0217 I30230 0 6 302305 9083 30230 84 2251 ind A nue SW 1 ' 2250 Lind Avenue SW ' 23 Lind venue SW ' Re on,WA 98055 j Renton,WA 98055 -11 -e- 1 j ' enton,WA 55 pie Pipe ine Company i 01 is Pipe ine Company ;TTosco Corporation I P.O. ox 5 8I P.O. x 55 8 , 72 Cummings Point Road i Denver, 0 80217 Denver, 80127 ' Stamford, CT 06902 I3023 90 ' 302305 4 302305 9085 123 Lind Ave e SW ' 12319 ind A nue SW 2423 Lind Avenue SW enton,WA 9805 Ren on,WA 9 55 ,__-7', Renton,WA 98055 f- 4 , 6 ff . Tosco orp ation ' i , Attn: . utton-Dc-48 ' • Phoenix, 85072 302305 0 `---- 2323 L' d venue SW ' Rento ,WA 055 ' 4 AVERY® Address Label's Laser 5160® Lp� vv -vv0 t - 1 PLANNING BERGER/ABAM ENGINEERING ENVIRONMENTAL ENGINEERS I N C. PROGRAM MANAGEMENT MemorandumRECEIVE Date December 17,2001 DEC 1.i 2001 Subject Olympic Pipeline Renton Station Drainage Improvements �coNol�ICDsvFsoPrneNr° NEIGHBORHOODS, From Gail S. Brooks, Sr. Environmental Manager /1 i { v RkTEGIC PLP.NN,NG To Elizabeth Higgins,AICP/ASLA, Senior Planner CC Ron Greene,Joe Estep,Gary Phillips,Chuck Schott, This memorandum is to clarify the reasoning behind the changes that were made in the Olympic Pipeline Renton Station Drainage Improvements since the November 21,2000 Hearing Examiner decision on the Variance from the Critical Areas Ordinance and wetland regulations. The File Number for the project is LUA00-068,SA-H,ECF,V. The project designers reviewed the original proposal to install an impermeable liner in the north part of the site and remove one foot of existing soil and made the proposed changes for the reasons described below. Given the amount of existing underground piping in the north part of the site,it was felt that there would be too much soil disturbance and disruption to dig up the entire area in relation to the potential benefit of a liner. It was felt that providing concrete"catch"pads for potential leak points would be(1)more cost effective,(2)more physically effective and(3)would allow leaks to be detected and cleaned up more quickly and easily than if the leak seeped down into the soil to the liner. In case of a spill,the pad would be cleaned more easily than having to remove spill- contaminated soil. We hope we have provided you with the information you required. If you have any questions,please contact Chuck Schott at 206-431-2263. --------- — --- -- ------ - — ---- (yeet—,k,/QZ-c_. %/cc-02—, BERGER/ABAM Engineers Inc.,33301 Ninth Avenue South•Federal Way,WA 98003-6395 Phone 206/431-2300•Fax 206/431-2250 1...4,17 vv U(, b- BERGER/ABANiPLANNING ENGINEERING ENGINEERS I N C. ENVIRONMENTAL PROGRAM MANAGEMENT Transmittal Memorandum To City of Renton Date 5/31/01 Dept. of Planning/Building/Public Works Project Olympic Pipeline Drainage Improvements Development Services Division Our Number 1055 S. Grady Way—Renton City Hall Your Number Renton,WA 98055 Attention Ms. Elizabeth Higgins,AICP/ASLA Regarding Buffer Enhancement Plan I am forwarding ®Prints ❑Originals ❑Reproducibles ❑ Photocopies ❑Other Quantity ID Number Date Description 5 copies May 2001 Critical Area Study and Buffer Enhancement Plan Remarks I'm sending you the Buffer Enhancement Plan which is proposed to fulfill the conditions of the Variance for the Olympic Pipeline Drainage Improvements Project. If you have any questions or would like to discuss the report,please give me a call at 206/431-2380. BERGER/ABAM Engineers Inc.,33301 Ninth Avenue South•Federal Way,WA 98003-6395 Phone 206/431-2300•Fax 206/431-2250 ir4" CITE ,)F RENTON '' ; Hearing Examiner Jesse.Tanner,Mayor . Fred J.Kaufman January 4,2001 Rose Ann Lopez Olympic Pipeline Company 2319 Lind Avenue SW Renton, WA 98055 Re: Renton Station Drainage • File No. LUA00-068,SA-:A,ECF,V Dear Applicant: The Examiner's Report and Decision on:the above referenced matter,which was issued on November 21,2000,was not appealed within the;'14;-day'period established by ordinance. Therefore,this matter is considered final by this office and the file on your application is being transmitted to the City Clerk as of this`date: Please feel free to contact this office;.if further assistance or:information is required. Sincerely, Fred J. Kaufm n • Hearing Examiner FJK/jt cc: Elizabeth Higgins,;Development.Services Sandi Seeger, Development Services 1055 South Gra dyWay-Renton, Washington-98055- (425)430-6515 .. �'This paper contains 50%recycled material,20%post consumer '. AFFIDAVIT OF SERVICE BY MAILING STATE OF WASHINGTON ) ss. County of King ) Joan Thompson , being first duly sworn, upon oath, deposes and states: That on the 21st day of November ,2000, 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: N ���� d 1 e, t-e _, 2000. SUB,S�' AND SWORN to before me this day of Nev- r to. is, V'O r4:9. / _y i co S 1�� = No ary blic 'n and or the State of Washington, '4, 0- residing at ,therein. Oj ,,,sets0,,`� 'rr NNVIP Application;petition, or Case No.: Renton Station Drainage LUA00-068,SA-A,ECF,V The Decision or Recommendation contains a complete list of the Parties of Record. ----.7,-,iii':::•1 ..,,..,2.7•••-i.:4"-:,'!""•,,-: -..••,74..1/441tv-,"X4-:..-•?.1,•, .--,,,t.,)4g-,''-•i:'*•-2:...r(17.k:13F:?-1,,- Z•V•4 i:`'.*,,Its,'•4•4„-ilt,-,,'•'''' ,...,,A1....-„,,, ,,,,., „..,...,, ,,..,,,,-...7,.....,..,•....,_,_,A..t.t.,..ti,..,0,,...1.;,4....., . ,.,-,•,,,,.....„...,,.„. r. •.. . .„,....„,„.4.,„,.. . "0„, ....,•..,,,;„...,-,,,k.„- .,-,:r,',WA,,,,,,,`17,,-...'1,.1 -,,,,74,,/,'• ,',,'i'l.ei ..- ,..47....,,,t''Per'=',':Al`'• -: 4.--4-i-:•''':1-..71'.F3-'•$.• ...:'... :' k •,. .? '•1,• 4, 4.0. ,,:i,- •••*& -. 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'- -' -5,-,,,• ;:-Ei'.:..,- , „: ,.*-4:-4 ,- --, 1,-' ' ...,,1- ,,o,„—::,.i:—,„ '.;4..,,y,C.,;::74-41.7-:.,it. .,,,'•-vi;:-..,,e,?s,re-y...:k.,:,,." ....,.; -,.,(34,,,,,,I,.. .,:..).,:ty-L.,,,,V,krit.--,,,• i's.:4,4±,,,,,,,•-•—•`',,k4. .- L 4- ii7.,,," -,tr..,lif.r.V.:.,.r••.`li:...,•v,.•tierstae.":414E.44 .,,-..,'A •,:-', -•;:i...:t i••-•I'f',•'•-'_J-7;.:*';',4,..,.-?• 43.;,ii".:•Li '.,''''' -., ,v-," ', ,,s.1,..,N;A, i '2 -'.1 " j.:,-,,ka* ' , • HEARING EXAMINER'S REPORT .2, i: •', -_,.'41:-.,_ :Y,..0',.-• 'e..4, 'L:.)14-!.-1.e,?./..,.,_,. 7 -;%:• ,„,',2*S.";.'V S."' -.''- ..,-....', November 21, 2000 OFFICE OF THE HEARING EXAMINER CITY OF RENTON REPORT AND DECISION APPLICANT: Olympic Pipeline Co. Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V LOCATION: 2319 Lind Avenue SW SUMMARY OF REQUEST: Proposed project would require upgrade and reconstruction of an existing drainage pond. It would also require work, including construction of permanent features, in the 50'buffer of an existing Category 2 wetland. Therefore,a Variance from the Critical Areas Ordinance and wetland regulations has been requested by the applicant. SUMMARY OF ACTION: Development Services Recommendation: Approve with conditions DEVELOPMENT SERVICES REPORT: The Development Services Report was received by the Examiner on October 24,2000 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 October 31,2000 hearing. The legal record is recorded on tape. The hearing opened on Tuesday, October 31,2000 at 1:32 p.m. in the Council Chambers on the seventh floor of the Renton City Hall. 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: Site Plan application,proof of posting,proof of publication and other documentation pertinent to this request. Exhibit No.3: Flood Plain Map Exhibit No.4: Vicinity Map Exhibit No. 5: Zoning Map Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 2 The hearing opened with a presentation of the staff report by ELIZABETH HIGGINS, Senior Planner, Development Services, City of Renton, 1055 S Grady Way,Renton, Washington 98055. Olympic Pipeline has requested approval of storm drainage improvements to the Renton Station Facility located on Lind Avenue in southwest Renton. The proposed project would upgrade and reconstruct an existing drainage pond and redirect storm water away from a wetland. In the course of this work,construction of permanent features and reconstruction of features already located in the 50 foot buffer would be required. The 50 foot buffer is a buffer area from an existing Category 2 wetland. The variance that has been requested would be to allow the work to take place within the buffer area. Originally an exemption from the Critical Areas Ordinance was requested,but it was not approved because it is a Category 2 wetland, larger than 2,200 square feet, and it is not a hydrologically isolated wetland. It is associated with Spring Brook Creek,which is located to the west. The applicant has requested a variance from Renton Municipal Code Section 4.3.050N, as amended by Ordinance 4835, Critical Areas Ordinance. The purpose of the variance is to allow construction within the 50 foot buffer of a wetland. The owner of the property is Olympic Pipeline Co. The property is located in an Industrial-Heavy(IH)Zone. The property is about 12 acres in size. It is rectangular in shape,running primarily east-west. It fronts on Lind Ave SW on its east boundary and Spring Brook Creek on its west boundary. Along the north boundary is a drainage channel. The South boundary of the property abuts the Tosco Tank farm. The property is divided almost exactly in half north and south. The east half has been developed for the Olympic Pipeline facility on filled area, and the west half is primarily wetland. The Examiner asked what is located within the buffer. Ms.Higgins responded that there are some existing facilities in the buffer area. The pond that will be improved with this project is located partly in the buffer area. There are some other structures in the buffer area as well. The pond will have some material excavated from it. It will have a liner put in and material that had been removed will be put back over the liner if the material proves to be clean enough. All the areas indicated as shaded on the Site Plan will have an impermeable liner put down with material put back over the top. This will provide a barrier so that any spilled product does not get into the ground water or travel into the wetland. Along the north boundary is a concrete pad, approximately 1,400 square feet in size,which is a new facility that is approximately 50%within the buffer area. The applicant will be required by code to do mitigation, and will submit a Mitigation Plan following the approval of the variance request. The applicant will also have to obtain a construction permit to move soil,and will have to submit a Mitigation Plan before that permit can be issued. The Examiner could state in the conditions that a Mitigation Plan would be required prior to getting a construction permit, even though it is also required by code. Ms. Higgins continued by stating that the proposal also meets the requirements of a Department of Ecology order to provide improved protection to the wetland area. This followed a spill that occurred in August of 1999 at the Renton Station Facility. The plan would be to redirect storm water away from the wetland area on a portion of the property and direct it into a containment area where it could be held until it was either removed off site or cleansed. The proposed project includes construction of a drainage containment pond,new drainage pipelines, several concrete spill containment pads,an impermeable liner within the existing spill containment area,and a subsurface impermeable liner within certain unpaved gravel areas of the site. The blue areas on the Site Plan are areas that would be within the buffer. The property is in an Industrial-Heavy(IH)Zone. The existing use, "large utility" is a conditional use, typically permitted following Hearing Examiner review. Even though an expansion of an existing conditional use would normally require Hearing Examiner approval,this project has been deemed a"technological upgrade" rather than an expansion. Therefore,the Hearing Examiner will not be asked to consider the Conditional Use Permit. Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 3 The Examiner asked for clarification on whether there would be extra capacity added to the project. Ms. Higgins responded that they will only be protecting the ground water and the wetland from an inadvertent spill of material during the normal operations that are occurring at the present time. None of the incoming pipes will be upsized. The new concrete pad is to contain any material that might be spilled when a truck is being filled with product. The Department of Ecology has been working with Olympic Pipeline, and they will be providing a certain amount of oversight to the project. The Environmental Review Committee(ERC) issued a Determination of Non-Significance for the project. The appeal period ended on October 16, and there were no appeals of the threshold determination filed. There were no mitigation measures required by the ERC. Ms.Higgins reviewed the Decision Criteria for the variance. The first item is that the applicant suffers undue hardship,and the variance is necessary because of the special circumstances applicable to the property. The wetland buffer, but not the wetland, extends into an existing industrial use site. Some of the proposed facilities would be constructed within the buffer. The ultimate goal of the work would be to protect the wetland. It is not feasible to relocate the facility, so the protection has to take place at the existing facility. The Examiner asked what the proposed dimensions of the pond will be and how much it will intrude into the buffer. Ms Higgins responded that the footprint of the existing pond will be increased from 37,800 square feet to 39,900 square feet. The height of the pond will be raised on the west side, but the pond will not extend any farther into the buffer. The pond will be higher and steeper. This will prevent overflow into the wetland to the west of the pond. Material will be removed from the existing pond, a liner will be put in,the height of the side along the buffer will be increased, and the removed material will be put back in. Continuing with the Decision Criteria for the variance,Ms.Higgins stated the applicant has been ordered by the Department of Ecology to rectify a situation that has existed for some time. They are attempting to do so in an area that is environmentally sensitive. The granting of the variance would provide greater protection for the environment, and therefore enhance the public welfare. There have been cases where buffer averaging has been allowed in industrial zones and other zones. While trying to protect the wetland wherever possible,there is a little more leniency involved with buffers and what can be done to accommodate existing uses or enhancement of existing uses. The project will not be making the property any larger or improving the value of the property. The requested variance is only to allow the proposed drainage and spill containment facilities to partially extend into the buffer area. There is no request to allow new project or transmission facilities,or to allow any work beyond the existing project site as defined by the fence line. The proposed work is in conformance with the Comprehensive Plan. The Comprehensive Plan encourages the retention of industrial uses in this area. If this work were not allowed to proceed,there is a possibility that the use would not be allowed to continue at this location,which would be a hardship on the applicant. The proposed drainage improvements meet or exceed the current land use regulations. The purpose of the project would be to mitigate the potential contamination of ground water, surface water and wetlands,therefore it would be mitigating impacts to surrounding properties and uses that may be occurring without the project. The proposed project would reduce the likelihood of soil contamination on the site. The restoration of the disturbed wetland buffer following the project would be required by the City Code. The project would work toward conservation of area-wide property values by protecting the soil in the area. The excavated soil should be stockpiled in an area to be approved by the Development Services Department before construction is begun. Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21, 2000 Page 4 The soils,which may be contaminated at the present time, should be covered if the construction occurs\between November and April. The applicant has been requested to keep the Development Services Department informed of when the project would be started and when it is completed. Staff recommends approval of the Site Plan Review and the Variance Application for the Renton Station Drainage Improvements with the conditions that the excavated soils be stockpiled in an area to be approved by the Development Services Department prior to commencement of construction,the stockpiled soils shall be covered if construction occurs between the months of November and April,and the applicant shall provide the project planner with the date the project is started and completed. Harold Brende,Earthtech, 10800 NE 8th St.,Bellevue,WA 98004,reviewed the existing situation regarding the pond. The overall site is roughly 6 to 8 feet higher than the wetland. The fill on the west edge of the pond extends to create a berm where there is standing water one to two feet deep most of the year. The southwest corner of the pond is essentially a swale where the pond drains out into the wetland area. The project will increase the height of the existing fill and continue it around to enclose the swale. A pipeline with a valve structure on it will be installed through the new berm material. The whole existing pond will be enclosed with a new berm that is higher and provides more storage volume. The control valve would normally be in a closed position,but could be opened to drain the pond as necessary after it has been determined that there are no contaminants in the water. The pond would collect runoff water that is potentially contaminated from spills or leakage from other areas of the site and drain it into the pond. The new berm is essentially re-grading and increasing the height of an existing berm. The site contains an existing 10,000 barrel steel tank that is surrounded by an earth containment berm in case the tank should leak. Another element of the proposed project is to install a liner over the existing containment area. Part of the liner material would extend up the slope of the existing berm onto the top and down the other side a little way. The liner material would extend a little way into the buffer. Currently the containment area created by the berm drains northwards though a small diameter pipe out to another pond area that was created many years ago. The project would close this off and route that water into the new containment pond. Concerning a wetland mitigation, one of the things that could be done to mitigate the work within the buffer would be to take out the existing berm material and bring it to the normal grade of the surrounding wetland, with the result that it would no longer be functional as a containment area,but revert back to the adjacent wetland. The Examiner asked if the concrete pad could be relocated and trucks be rerouted so that it is not as close to.the wetland. Mr. Brende replied that the concrete pads are sized to totally contain a spill from the trucks that park on them. They are regulated by a closed valve. They could not be conveniently relocated because the existing underground piping system is fixed. Mr.Brende continued by stating that most of the southern half of the site is asphalted,but most of the northern part of the site is gravel material. What is proposed is to remove about 18 inches of the gravel material and install a new impermeable liner to prevent any spills from seeping down into the underlying materials. There would be sub drains above the liner,but below the surface to capture any spilled material and rainfall runoff and route it to the pond. The Examiner asked who is going to do the sheen detection and why they will not be using analytical rather than "eyeball" methods to determine whether or not there has been a leak and whether or not the material should be cleaned up. Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21, 2000 Page 5 Mike Condon, Environmental Coordinator, Olympic Pipeline Co,PO Box 1800,Renton, WA 98057 stated that the agreement with the Department of Ecology calls for a periodic sampling to confirm that sheen observation is adequate. If there is no sheen,we are required to take a sample to show that water discharge quality standards are met.If there is sheen, at a minimum the water would be pumped out with a vacuum truck. We would take an extensive sampling to determine the extent of the sheen. It might just be floating on the top, and removing some of the water might be sufficient, or it could require some cleaning of the pond. It should be pointed out that there are different containment areas in the property where there are individual valves. Those would be examined individually for a sheen. Everything doesn't automatically go into the pond. Around the specific points of equipment there would be an option to contain any sheen and water there. There would be opportunities to catch the sheen well before it got into the pond. The Examiner asked if the pond is used by waterfowl and wildlife and what kind of jeopardy they are in if the pond is not treated appropriately or fast enough. Mr. Condon replied that he has not observed waterfowl there, but he is not there every day. In a rain event,the operators would be discharging water at different points throughout the property and examining the water in the pond. Regarding whether the exit valve from the pond would be normally left open or closed to the wetland. For recharge purposes the argument is to keep it open so there would be a more constant flow of water out to the wetland. From an environmental standpoint it is preferred to be kept closed so that there can be a last check before it flows out unabated into the wetland. The Examiner asked whether the project is or is not in the 100 year flood plain. Ms Higgins responded that the property is in the flood plain,but because it had about 10 to 16 feet of fill on the eastern half of the property,that portion is raised up out of the flood plain. On the map that is Exhibit#3 there is a line that runs from north to south along the existing fence that is the edge of the 100 year flood boundary. If you look at a map that predates the development of this property, it would show that it is in the flood plain area but is raised up out of the area that would be in jeopardy of flooding. Rosanne Lopez,2319 Lind Ave SW,Renton, WA 98055 discussed the concrete pad on the site. This is very rarely used unless the capacity of the utility tank is reached and the amount that can be reinjected into the line is reached. If levels are close to exceeding the capacity or for any emergency reason,trucks are brought in to offload product or move product around. It is a preventative measure in case a release occurs. The concrete pad area would reduce any product that might go into the soil if a release should occur. Regarding the concrete pad that runs east-west along the north boundary,there is a possibility that approximately half of it may no longer be in the buffer zone. The Examiner asked if the concrete pad that runs north-south on the western part of the site will have a liner. Ms.Lopez responded that the liner would be continued under that area as well so that the number of seams. would be minimized. The location of the liner would also depend on the location of the existing underground piping. The Examiner asked since they are nearing capacity is a there a way of shutting off the pipeline somewhere else so that the tanks do not overflow, and if this is what caused the spill in the summer of 1999. Ms Lopez replied that the last release was from a valve. They would determine,based on the situation, if the line would need to be shut down. There are times when they cannot reinject into the pipeline system fast enough. The purpose of having a utility tank there is that product is shipped down the line in segments, be it Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 6 gasoline, diesel or jet fuel. The jet fuel that goes to Seatac Airport cannot have any contaminants associated with it, so there are times when the interface section needs to be removed and that is diverted into the utility tank. The Examiner again questioned whether or not there is a Mitigation Plan. Ms Higgins replied that no mitigation plan has been submitted at this point. Mitigation would be required for doing any work within the buffer. The exemption requested would have not only allowed them to do the work, but would have exempted them from doing any mitigation. That request was denied. They will have to do mitigation as a requirement for getting their construction permit. The construction permit is required to remove any soil or do any grading on the property. 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 2:27 p.m. FINDINGS, CONCLUSIONS&DECISION FINDINGS: 1. The applicant,Rose Ann Lopez, for Olympic Pipeline's Renton Station,filed a request for approval of a Site Plan and Critical Areas Variance to modify a pipeline facility adjacent to a protected wetland. 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(DNS)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 2319 Lind Avenue SW. The site is located on the west side of Lind just south of SW 23rd Street. The site is the location of an Olympic Pipeline transmission facility known as Renton Station. 6. The facility contains a variety of pipes, pumps and values that control the flow of various petroleum products. The site serves a number of localities including providing Seatac Airport with aviation fuel. 7. The subject site was annexed to the City with the adoption of Ordinance 4040 enacted in February 1987. 8. The subject site is zoned Heavy Industrial(IH). 9. The map element of the Comprehensive Plan designates the area in which the subject site is located as suitable for the development of employment generating uses, but does not mandate such development without consideration of other policies of the Plan. 10. The subject site is an approximately 11.77 acre site. It is approximately 911 feet deep(east to west)by approximately 577 feet wide(Lind Avenue frontage). 11. The site has a large Category 2 wetland located on the western half of the parcel. The complex is Olympic Pipeline - Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 7 concentrated on the eastern half of the parcel. The project is described as consisting of approximately 6.8 acres. The wetland is also segregated off from the rest of the site by a 50 foot wide wetland buffer. The wetland continues around the north end of the property and that section also has the 50 foot buffer. 12. The applicant proposes isolating or separating possible contaminated runoff from potential petroleum spilled on the northern portion of the site. The upgrade consists of a few different elements. The applicant does not propose any major additions or new buildings to the facilities on the complex. 13. There would be new piping and valves to contain and direct spills or contaminated water to a containment pond. The applicant proposes adding and upgrading concrete truck parking pads located generally in the northwest corner of the developed portion of the site. The northernmost pad is located within the required 50 foot wetland buffer. 14. The applicant also proposes installing an impermeable liner or barrier under the containment pond located on the western edge of the site just east of the wetland and under various gravel areas found mainly on the north portion of the site. Pipes would convey spilled materials collected above the barrier to the containment pond. The applicant would then determine if the contamination could be removed or recovered or disposed of properly. 15. The western pond would be increased in size from 37,800 square feet to 39,900 square feet. The embankment would be increased to provide protection to the wetland. This pond expansion and related embankment work will intrude into the 50 foot wetland buffer. The work will require the removal of approximately 12 inches of topsoil,the installation of the barrier and placement of gravel to contain the barrier. 16. The current use is a"large utility" and the underlying use is a Hearing Examiner Conditional Use. Staff has determined that the proposed project is a technological upgrade and not an expansion and therefore, does not require additional conditional use approval. 17. The project area, at approximately 6.8 acres,would normally be reviewed as an administrative site plan. The work proposed on both the northern concrete pad and the containment pond along the west margin of the site require a variance from the Critical Areas Ordinance since they are within the required 50 foot wetland buffer. The wetland variance and the site plan will therefore be subject to Hearing Examiner review. 18. The Washington State Department of Ecology will also be providing oversight on this project. All of Olympic Pipeline's stations in the State will be undergoing similar spill containment upgrades. The department has reviewed the proposed plan and provided guidance in determining how it will operate and how to respond to any spills. CONCLUSIONS Variance 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 Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21, 2000 Page 8 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 odd aspect of this variance request is that the subject site is very large but almost half of the subject site is dominated by wetlands and wetland buffer. These wetland areas severely limited the useful, unencumbered property. In ordinary circumstances,the development limitations created by the existing layout would be considered self-imposed. Self-imposed hardships are not justification for a variance. In this case,the limitation is that so much of the parcel is dedicated to wetlands that development on the site is limited. In order to provide the possible drainage needed to channel spill or contaminated waters to the holding pond,the pond needs to be located where it is and expanded where it is. Similarly, locating the concrete pad is limited by the current pattern of piping which cannot reasonably be relocated. 3. The applicant proposes no intrusion into the wetland and limited intrusions into the buffer. The intent is to positively protect the wetland and remaining environment in the event of a spill event. The approval of the variance should not affect the public welfare nor other property in this area. The work will be managed to prevent erosion or degradation of the wetland or other areas of the buffer. 4. Severe restriction on half of a property would be needed to replicate this approval. It is not a special privilege easily granted. 5. The variance appear to be the minimum that will allow the project and processes to function together in a successful fashion to contain contaminants if there should be a spill. Site Plan 6. The site plan ordinance provides a number of specific criteria for reviewing a site plan. Those criteria are generally represented in part by the following enumeration: a. Conformance with the Comprehensive Plan; b. Conformance with the Building and Zoning Codes; c. Mitigation of impacts on surrounding properties and uses; d. Mitigation of the impacts of the proposal on the subject site itself; e. Conservation of property values; -' ^ ` � ` ) ^ � - �J � L_�0 �~, - Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 9 f. Provision for safe and efficient vehicle and pedestrian circulation; g. Provision of adequate light and air; h. Adequacy of public services to accommodate the proposed use; The proposed use satisfies these and other particulars of the ordinance. 7. The Comprehensive Plan suggests employment generating uses for this area of the valley. The complex probably does not provide a large employment base on its own. But in order to support job creation utilities are a necessary component of the economy. 8. As noted,the applicant is not adding much that will be visible. There are no new buildings,there are some surface changes to the pond and concrete spill pads and there will be piping and underground barriers. Those aspects that are being upgraded or modified appear to meet the setbacks imposed on the property other than the wetland buffer setbacks for which a variance was requested and approved. The use will be monitored by the applicant in accordance with State and City standards. 9. The changes and additions should not have much of a visible impact on either the subject site or adjoining properties. The upgrades should prevent harm to the subject site and neighboring properties in the event of a spill. 10. The modifications should not affect area-wide property values. 11. The internal circulation plan will not be substantially altered by the changes to the subject site. 12. The utilitarian nature of the subject site obviates the need to allow light and air to enter the subject site. The low-rise nature of the structures does not impair neighboring properties access to light and air. 13. The construction activities will increase noise but once those activities cease,there should not be substantially any changes to existing conditions. The facility obviously deals with hazardous materials. The release of those materials could harm the public health and safety. The changes proposed are an attempt to limit and contain any potential harm that spills might create. 14. Public utilities are provided near the site. 15. The redevelopment of the subject site should not create any deterioration or blight. DECISION The Site Plan and Variance are approved subject to the following conditions: 1. Excavated soils shall be stockpiled in an area on site to be approved by the Development Services Department prior to commencement of construction. 2. Stockpiled soils shall be covered if construction occurs between the months of November and April, inclusive. Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21, 2000 Page 10 3. The applicant shall provide the project planner with the City the date that the project is started and completed. ORDERED THIS 21st day of November, 2000. FRED J.KA MAN HEARING EXAMINER TRANSMITTED THIS 21st day of November, 2000 to the parties of record: Elizabeth Higgins Rose Ann Lopez 1055 S Grady Way Olympic Pipeline Co. Renton,WA 98055 2319 Lind Ave SW Renton.WA 98055 Harold Brende Mike Condon Earthtech Olympic Pipeline Co. 1008 NE 8th 2319 Lind Ave SW Bellevue,WA 98004 Renton,WA 98055 TRANSMITTED THIS 21st day of November,2000 to the following: Mayor Jesse Tanner Gregg Zimmerman,Plan/Bldg./PW Admin. Members„Renton Planning Commission Neil Watts,Development Services Director Larry Rude,Fire Marshal Sue Carlson,Con. Div.Administrator 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 100G of the City's Code, request for reconsideration must be filed in writing on or before 5:00 p.m.,December 5,2000. 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 110,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. Olympic Pipeline Renton Station Drainage Improvements File No.: LUA00-068,SA-A,ECF,V November 21,2000 Page 11 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. ,. •n--wm." --- p1'i; • NW--9-73*5 ' � --. .' off.— p-- .ti Ai. - �? r f • 1I -- e I � •I - A, • a ", T. ® ,: , Ililv.A: �� ` `� : ,t o_ � - _ _ eta, _ - ads ^-.� � �.K .., •_- - --:--: -"'-'+ ,•-+-�----... "_�_ .u�; a.. p�� £�1�5 tudni w'ltird �!lily, i e NW illihiliCEPIL ms. . ri •:�.:: .1.(:, A Q��� •,utia�A0 'po tt ri ;I \ L ail '�11= � iiR.o��ll ..a�a a: �'r� as :_. r> _ I_ Nis .\ �. W 19th o`1. l oa�s. �j risc' - -- ----w---- -. at iv 1--. .._t i . • II • w1 I F! ! ' ' aki i t. f' ' . =fir -II Olympic Pipeline k '11E1 sa i'cn .. . Isirip t ••I JT 0 Q • • ham. -- - - a Project Sites _ • — ; pxpgq r4 :I vio- ='`I 1.- L = 7 'fir / �‹�``¢ �� II�4�ho.0fl- - SW 27 ---.:. --- u, IIM c I 1 �1 ! 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EL. 13.0 PER CITY OF RENTON DATA N in I UNNAMED DRAINAGE CHANNEL X I -•� - _ L • < < < 1 0, • a.__ -.l WETLAND Q I0. ,,,, — P/L _ _ 911.07',— •-- - - • _-. __-j . _'. —I 7 / / — 11-- i APPROX. 100 YEAR X 0 9 FLOOD PLAIN BOUNDARY l� x �:� I , (V i cf, Nr WETLAND /1 x (3 to I EXISTING CHAIN LINK �J w i — � � FENCE. PROJECT SITE A h.: z BOUNDARY AND LIMIT ( I —+�-` =4 I `r' OF CONSTRUCTION AREA 1 Ix ii la WETLAND BOUNDARY \.f I . � 50 ' / \ J 8 , 0 \\\K x x x X X 903.30 0 I _ . — — �s r;...,,,AG I Vtg FLOOD PLAIN MAP 100 0 100 2c s scale feet VALVES ((NORMALLY CLOSED) SPILL CONTAINMENT DRAINS:-SEE ! DETAIL O. T-B TIONS i I WEUWD BOUNDARY- ----- ----J BURIED MPERd0U5 CANER _ .: ; uI" '/ [ 2 07sf _ PROPERTY USE , %� / ,,,, // - 4 PERFORATED DRAIN PIPE 'CdNCRE PAD'AROUND!P- S E)iB.T� r , .CB 10 ` T(S)1E1.50IV %!! 1 - .//fa 4f-r 7 \ / / V® I' ,%, '`� , RIM EL2(.7 wl 1 I ' i • /y '��.1 qq� IE OUT(SW)19.00 11 i �'ir, - 1.t 201I00 ,� , /' _ "/ /•4\ 9094sf '.• If I• .: I• f3 .'III✓ Ji97sf :. �:. / '- - o0y • IMPERMEABLE UNER JI • 4 ' • IN •CONTAINMENT ARE{ • I:I!' LL ! I li: ,i n.. 10 000 DDLS CA ACITY f ''^ • I:', hid I W !ØNORNDR:NA:EY I• • . CB 2 ,IOF Ft� I 7, 0 Il ,lill ')'+j!II�r,,,,F,,,,,, �1-«; : 5:;., .I �il.. ;:I; ;I '♦:♦.♦.� PAVEMENT REMOVAL �j I' AND REPLACEMENT. 50.WETLAND BUFFER 1 I(1jl' / DRAINAGE BOUNDARII CB J Q, . , I' • " ` I;Il.i li'�,I I' RIM EL 220•':j ': ' 1 / I. �);I III`' - pt'SOUTH IE IN(NE)17.821 GRADE SEPARATION BERM ��/// GRAVEL WITH UNER WETLAND BOUNDARY �. IF.' Y1• Ott ft( AREA INN 17.85•' •, , 'I . _ _ . IE4If Eil15.• AREA IE OUT SW)17,65 ':0 IE OUT( S� :1, ♦♦♦♦ 'i WEIR ._ __ __ /�' !-,.•�. --- -- _-'M „ ♦�♦♦♦•♦• j ' •' ' T • 96 LF 10 FT CT :, y RIM EL 21.6 _ • j' �♦�♦�♦ REPLACE ASPHALT 29 LF 10'PVC S=.005 Fit/FT I727 I '-- gym'" S..005 ii IE IN(N)17.61 -"1 I�i I ♦♦ ♦ I ,'fY IN(NE)16.12 17 .- NEW EMBANKMENT FOR ( (r �•.�/ !; '(1 1 ) - - ♦♦♦• I, lid; STORMWATER RUNOFF 1 /( —� �A�"I �. �' gliE OUT(W)16.12 i _- ♦♦♦ id; CONTAINMENT POND !c[/[�9j �j `•� CB 7 ' I ♦♦♦♦♦♦♦ • i, 1 1 I I;01140. '� IE 15.50 t I •RIM EL 21.5 ' ♦♦♦♦♦♦.♦ I •I• • r,•• ..• CIE OUTS)19.8 ♦ , [1 I; 1 ' ) I' • Tig \ 'tk • - • � +IJil Id ! tr • I! /A H 2* 1 ta;146.;;;.-44,,L,,AeiR4. , '46.ta• . - . ,. ;6- .! . . - L•.. ' �r , POND I DISCHARGE \ ' I TENANCE. .'j.,� CESS RAMP i' EXISTING CHAIN UNK ) • \��\> .�L. - '7 'r I ° r•I FENCE. PROJECT SITE •BOUNDARY AND LIMIT ) - ` '' - '111. 'll `i`ITv_:-• I' 17-u r7 - Ij i , OF CONSTRUCTION AREPI— I..:;'' '` 7 F 'PVC ' 11• I1 I �\ '` 1-�,./ I, i 1. S .0044FT FT , ,i1 ! • r->D' ! RIM.EL 21.5 11.:d Il RIM EL.22.0 ' BUFit.P ` IE,111011 9.12 0 ` iij IE IN(W)�7.90 \ /' OUT((E J9.12 - f. �, ,),t IE OUT(N. 17.9 , TEMPORARY EROSION CONTROL / /,� ,•\ I, ` I ' I • I 'I I FILTER FABRIC FENCE _,'\i/" :�/" T. I r , ,.,II I I I AND/OR HAY BALES � ! ALONG WEST BOUNDARY �' �• ;'" C�' , OF PROJECT SITE 1 *.\ .;�'/" -J•.. .I.. - , '.1; I I • \ \;�:, /: v ..•_._, v.. .-_.v,.. v-r it_ ,;- ' I•r 'I 1 I bl ) ..___.-_-- _--_ / RIGHT OF WAY I• .J exl!./7:LEI 1 PROPERTY CANE - - _. -- - - _ - O--:•.! .. 17 • . - -- .. ..._._ - 0 6 ......___- +tiY,7r;'S.i'E ._ _ _ _. ,.i• P:Li .._ 1 JD JGscale feel a I _ i 0 JO - - SW 23rd R/W I I - I I i I IDA120NIAL DAhlIA [,p,,,[[Rgety OLYMPIC PIPE LINE COMPANY •� ]]]01 BTN AVEMIE SOUTH VERTICAL la MATTER S pIM LOW Awwu.S.M. FEDERAL WAY,WASHINGTON INWeE TPA•N'�A�l^^ L T],onrtwxo SITE PLAN ltEItGER�AUAM VOICE 000 NOTE ROOKS: x[tK RENTON STATION [ ' VOICE:(209N21-2500 DRAnIxO FAX (208M01-2250 No. REVISION n CHECKED APPROVED cx[cR DRAINAGE IMPROVEMENT PROJECT Dw,ynp„n. AWL T*•S, APPROVED NAIL P. STA TD YD. STA O REFERENCE DRAWINGS MD r„+Corrt1 nrtw[or MGM, o OM�n cw�"i•l[Tf)S�wl VE w[,wN[o ro THE o,m[w oN xu,v,o. S w'�''�]6F 6 4[V.N�• .,.M M Cm a IMOMMMMOPOO v.M Me JO =�O�1u C-1 10 AFFIDAVIT OF PUBLICATION Charlotte Ann Kassens, first duly sworn on oath states that he/she is the Legal Clerk of the SOUTH COUNTY JOURNAL 600 S. Washington Avenue, Kent, Washington 98032 NOTICE OF ENVIRONMENTAL a daily newspaper published seven (7) times a week. Said newspaper is a legal DETERMINATION L REVIEW newspaper of general publication and is now and has been for more than six ENVIRONM RENTON,WASHI GTONMITTEE months prior to the date of publication, referred to, printed and published in the The Environmental Review Committee English language continually as a daily newspaper in Kent, King County, has issued a Determination of Non- er Washington. The South County Journal has been approved as a legal the authorincety for the the following project Municipal dal the authority of Renton Municipal newspaper by order of the Superior Court of the State of Washington for King Code. RENTON STATION DRAINAGE County. IMPROVEMENT The notice in the exact form attached, was published in the South LUA-00-068,SA-H,V,ECF County Journal (and not in supplemental form) which was regularly distributed to Environmental review for proposed the subscribers duringthe below statedperiod. The annexed notice, a upgrade of existing drainagelAs pd A variance from the Critical Areas Ordinance and wetland regulations is requested. Location: 2319 Lind Ave.SW. Renton Station Drainage Improvements Appeals of the environmental determination must be filed in writing on or as published on: 10/2/00 before 5:00 PM October 16,2000.Appeals must be filed in writing together with the The full amount of the fee charged for said foregoing publication is the sum of required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 $48.88, charged to Acct. No. 8051067. South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by Legal Number 8237 City 1110.oAdditonaf RentonM nformatonndega diong the appeal process may be obtained from the Renton City Clerk's Office,(425)430-6510. A Public Hearing will be held in the Council Chambers of City Hall,October 31,2000 at 1:30 PM to consider the proposed site plan • egal CI th County JOumal and variance. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. Published in the South County Journal Subscribed and sworn before me on this ay of Or-717-; , 2000 October 2,2000.8237 ``ooN ts1cPtvrr,,,,, .Q'�, %%OTARy 7/Kt.—I- ae, MA.Ivi = ee,_ — '`• piinLl� • ? Notary Public of the State of Washington .`°�':E' . �: residing in Renton :';,17r•'C? 6 , 2�- a�•`. King County, Washington CITY OF RENTON • CURRENT PLANNING DIVISION AFFIDAVIT OF SERVICE BY•MAILING.. On the p day of CcloDea-- , 2000, I deposited in the mails of the United States, a sealed envelope containing Preovt > Heavk al Ef innv --rdocuments. This information was sent to: Name Representing f p iC>`,e'. Nil l LA....pt.'7._ CAL/4�'1�Jl G �� �l l (If' � a-kl.t (Signature of Sender) )0JACIL,ta (C . _9-er- STATE OF WASHINGTON ) SS COUNTY OF KING ) I certify that I know or have satisfactory evidence that sr�. ,pL, S.2ec'.O.t signed this instrument and acknowledged it to be his/her/their free and voluntary act for th uses and purposes mentioned in the instrument. Dated: (9rA . J C, �r . ---177 4�i� 2Cl�-,-L (.fir �w Notary Public i nd for the State of Washin•4�� MARILYN KAMCHEFF ► NOTARY PUBLIC P Notary (Print) MARILYN KAMCHEFF STATE OF WASHINGTON ► My appointment e I COMMISSION EXPIRES 1 JUNE ProjdccvvYn -.�1n Stailcm D'Zk tKai e I w p VO Project Number: LUW . 00 -069g, SW- 1 , V , EC NOTARY2.DOC I � • • CITY OF. RENTON HEARING EXAMINER PUBLIC HEARING OCTOBER 31, 2000_ AGENDA COMMENCING AT 1:30 PM, COUNCIL CHAMBERS, 7TH FLOOR, RENTON CITY HALL The application(s) listed are in order of application number only and not necessarily the order in which they will be heard. Items will be called for hearing at the discretion of the Hearing Examiner. 1:30 PM PROJECT NAME: Renton Station Drainage PROJECT NUMBER: LUA-00-068,SA,V,ECF PROJECT DESCRIPTION: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond. This project would also require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, the applicant has requested a Variance, from the Critical Areas Ordinance and wetland regulations. Location: 2319 Lind Avenue SW. hexagenda 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: October 31, 2000 Project Name: Renton Station Drainage Improvements Applicant/Address: Rose Ann Lopez Olympic Pipeline Company 2319 Lind Avenue SW Renton,WA 98055 Owner/Address: Same as above File Number: LUA-00-068, SA-H, ECF, V Project Planner: Elizabeth Higgins, AICP Project Summary: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond.This project would also require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, a Variance,from the Critical Areas Ordinance and wetland regulations, has been requested by the applicant. Project Location: 2319 Lind Avenue SW B. VARIANCE 1. Variance Decision Requested a. The applicant has requested a variance from Renton Municipal Code Section 4.3.050N, as amended by Ordinance 4835, Critical Areas Ordinance. b. The purpose of the variance is to allow construction of facilities within a wetland buffer. C. EXHIBITS Exhibit 1: Project File containing the application, reports, staff comments, and other material pertinent to the review of the project. Exhibit 2: Sheet C-1, Site Plan (no date) Exhibit 3: Flood Plain Map (no date, received 5/30/00) City of Renton P/B/PW Department - _.:.'iinary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS LUA-00-067, SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 Page 2 of 7 Exhibit 4: Vicinity Map (no date) Exhibit 5: Zoning Map, dated 12/20/00 D. GENERAL INFORMATION: 1. Owner of Record: Olympic Pipeline Company 2. Zoning Designation: Industrial, Heavy(IH) 3. Comprehensive Plan Land Use Designation Employment Area-Valley 4. Existing Site Use: Olympic Pipeline Renton Station facility(to remain) 5. Neighborhood characteristics: North: Drainage creek, office park East: Wetland preserve South: Tosco tank farm West: West half of property is undeveloped, wetlands 6. Access: Driveway off Lind Avenue SW 7. Site Area: 11.77 acres 8. Project Data: area comments Existing Site Area: 11.77 A Project area is 6.8 acres New Project Area: N/A No new building construction Total Site Area: 11.77 A Drainage improvements would be within existing facility area. E. HISTORICAL/BACKGROUND: Action Land Use File No. Ordinance No. Date Zoning 4404 6/7/93 Comprehensive Plan 4498 2/20/95 Annexation 4040 2/9/87 F. APPLICABLE SECTIONS OF THE RENTON MUNICIPAL CODE: 1. Section 4-3-050.N, Environmentally Sensitive Areas, Amended by Ordinance No.4835 2. Section 4-4-060, Grading, Excavation, and Mining Regulations hexrpt.doc City of Renton P/B/PW Department _: Binary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS LUA-00-067,SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 Page 3 of 7 G. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN: 1. Land Use Element—Employment Area—Valley 2. Environmental H. DEPARTMENT ANALYSIS: 1. PROJECT DESCRIPTION/BACKGROUND Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. Renton Station is the location of an Olympic Pipeline Company facility that handles transmission pipelines, pumps,valves, and a storage tank used for transport of refined petroleum products from Anacortes, Washington. Renton Station also has administrative and operations buildings on the property. The facilities used for the transport of petroleum products are subject to leaks and spills of the products. The intent of the proposed project would be to segregate runoff originating in the north part of the property,that is subject to contamination from spills and leakage of petroleum products, and route that runoff to an on-site containment pond. The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas, including Category 2 wetlands, adjacent to the site. The proposed project includes construction of a drainage containment pond, new drainage pipelines, several concrete spill containment pads, an impermeable liner within an existing spill containment area, and a subsurface impermeable liner within certain unpaved (gravel) areas of the site. This project would require work, including installation of new storm drainage features, in the 50' buffer of an existing Category 2 wetland located to the west and at the north part of the site.The proposed work is not included in the"Allowed and Regulated Activities"within wetland buffers (RMC 4-3-110K). A Variance has been requested by the applicant so that proposed work within the buffer could commence. The work requiring the Variance to allow construction within the 50'wetland buffer includes removal of approximately 12"of topsoil, installation of a subsurface, impermeable liner, replacement of soil with gravel, and the increase in size of an existing embankment around a drainage pond. A concrete spill containment pad would also be partially(approximately one-half) located in the 50'wetland buffer.The proposed upgrade and reconstruction of the new pond would increase the "footprint"of the existing pond (37,800 square feet)to 39,900 square feet. The property is in an Industrial - Heavy(IH) Zone. The existing use, "large utility' is a conditional use, which is typically permitted following Hearing Examiner review, in this zone. While expansion of an existing conditional use would normally require Hearing Examiner approval,the proposed project has been deemed a"technological upgrade", rather than an expansion. Therefore,the Hearing Examiner will not be asked to consider the Conditional Use Permit. The project site is located in the Employment Area Valley Planning Area(Comprehensive Plan). All development within the Employment Area Valley Planning Area typically requires Site Plan Review. Because the project area, at approximately six(6) acres, is less than ten (10) acres in size, the site plan would typically be reviewed administratively, except that,for this project, a Variance is required. Therefore,the Hearing Examiner will be asked to consider and approve the site plan, as well as the Variance request. The Olympic Pipeline Company has stated that the Washington State Department of Ecology would also provide oversight to this project. The proposed work at Renton Station is part of the Facility Storm Water Management System proposal for the installation of containment systems at all of Olympic's stations and delivery facilities. A report was submitted to the Washington State Department of Ecology hexrpt.doc City of Renton P/B/PW Department tninary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS LUA-00-067, SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 Page 4 of 7 in June 2000. The Renton portion of this project was scheduled by November 2000, or within 6 months of receipt of all permits. Regarding corrective actions currently underway, the remediation and air sparging system responsible for the August 29, 1999, release is still in operation at the Renton Station. Olympic Pipeline Company is working with the Washington State Department of Ecology(Ms. Elfin Storey in the DOE Northwest Regional office) on continued monitoring and remediation of the release site. The proposed work would commence as soon as approvals are received from the City of Renton, and would be scheduled for completion in Autumn 2000. 2. ENVIRONMENTAL REVIEW Pursuant to the City of Renton's Environmental Ordinance and SEPA (RCW 43.21 C, 1971 as amended), on September 26, 2000, the Environmental Review Committee issued a Determination of Non-Significance. The appeal period ended on October 16, 2000. No appeals to the threshold determination were filed. 3 COMPLIANCE WITH ERC MITIGATION MEASURES No mitigation measures were required. 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 DECISION CRITERIA The Reviewing Official shall have authority to grant a variance upon making a determination, in writing,that the conditions specified below have been found to exist (RMC 4-9-250B). 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 wetland buffer, but not the wetland, extends onto an existing industrial use site. As previously described, some of the proposed facilities would be constructed with the buffer. The specific special circumstance is that it is not feasible to relocate the proposed facilities so as to be out of the buffer area. Relocation is not feasible because the proposed facilities need to be situated to complement and serve the existing facilities. The drainage containment pond needs to be at the site of the existing pond for the following reasons: • To provide an adequate hydraulic gradient drop from other areas of the site, • To avoid conflict with other facilities and uses of the site, and hexrpt.doc City of Renton P/B/PW Department . ._:.ninary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS LUA-00-067,SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 Page 5 of 7 • Because adequate space is available to provide the desired storage volume. The impermeable liner for the existing tank containment area needs to extend to the top of the existing berm slope; thus the liner will extend a few feet into the buffer area in the northwest corner of the containment area. The liner needs to extend to the top of the berm so the entire potential storage area that would contain spilled product is covered with the liner, and to provide a proper design that would prevent water from seeping under the liner and causing hydraulic uplift of the liner. The spill containment pad will be used as the site where tank trucks are parked during unloading of chemical material. The pad needs to be located as shown on the site plan because this is where the existing pipelines that are attached to the tank trucks are located. The subsurface impermeable liner needs to extend into the buffer area so as to provide a complete seal in the area of potential leaks and spills of product to protect the wetlands. 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 the subject property is situated. All of the proposed facilities are intended to protect environmental quality and public welfare. There will be no impacts to adjacent properties. All construction work and facilities will be on the existing project site, in other words,within the existing fence line around the project site. Temporary erosion control measures (including filter fabric fence, hay bales, and reseeding)will be implemented to prevent sediment from being washed off the project site. 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 proposed project would be unique to the area and zone, as far as is known. If proposed, a similar request from another property owner or facility would be reviewed and considered in the same manner. The requested variance does not appear to be a grant of special privilege because there would be no additional fill in the wetland that could potentially increase the use and value of the property. d. That the approval, as determined by the Hearing Examiner, is a minimum variance that will accomplish the desired purpose. The requested variance is only allow the proposed drainage and spill containment facilities to partially extend into the buffer area. There is no request to allow new product handling or transmission facilities, or to allow any work beyond the existing project site as defined by the fence line. 6. CONSISTENCY WITH SITE PLAN APPROVAL CRITERIA As per RMC 4-9-200E, "The Reviewing Official"shall review and act upon site plans based upon comprehensive planning considerations and the following criteria. These criteria are objectives of good site plans to be aimed for in development within the City of Renton. However, strict compliance with any one or more particular criterion may not be necessary or reasonable. These criteria also provide a frame of reference for the applicant in developing a site, but are not intended to be inflexible standards or to discourage creativity and innovation. The site plan review criteria include, but are not limited to,the following:" hexrpt.doc City of Renton P/B/PW Department - . ._.:ninary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS L UA-00-067, SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 Page 6 of 7 GENERAL SITE PLAN REVIEW CRITERIA: (a) Conformance with the comprehensive plan, its elements &policies The objectives and policies of the Employment Area—Valley element of the Land Use section of the Comprehensive Plan and the Environmental section of the Comprehensive Plan would be applicable for the proposed project. Employment Area—Valley The Employment Area—Valley element includes objectives and polices that recognize the importance of industrial uses, both existing and new, to the City of Renton. The policies are guidelines for the economic development of the City of Renton. Another primary objective of the Employment Area—Valley is to provide employment opportunities, so non-employment-based uses are prohibited in the Renton Valley. The proposed project would make it possible for the existing use, the Olympic Pipeline Company's Renton Station, to continue operations at its present location. Environmental The City of Renton's environmental policies provide the basis for environmental actions that are intended to balance urbanization, economic development, and natural area protection. Urbanization results in industrial uses being located within city boundaries. The need for economic development results in the development of land that may be in, or near, environmentally sensitive areas. Protecting natural areas, while allowing the operation of industrial uses and land development, may require higher development standards. The proposed project would retrofit storm drainage controls that meet current wetland protection standards. (b) Conformance with Existing Land Use Regulations The proposed storm drainage improvements meet or exceed current land use regulations. (c) Mitigation of impacts to surrounding properties and uses The purpose of the proposed project would be to mitigate the potential contamination of ground water, surface water located in the adjacent wetlands, an existing storm drainage channel, or other surface water runoff areas. Contamination could result from inadvertent spills or leaks of petroleum products. (d) Mitigation of impacts of the proposed plan to the site The proposed project would reduce the likelihood of soil contamination on the site from spills or leaks of petroleum products. Restoration of the disturbed wetland buffer following project completion would be required by City code. (e) Conservation of area-wide property values The increased protection from contamination should result in protection of property values in the area. (f) Safety and efficiency of vehicle and pedestrian circulation Not applicable; improvements would be located away from vehicle and pedestrian circulation areas. hexrpt.doc City of Renton P/B/PW Department .:,,...ninary Report to the Hearing Examiner RENTON STATION DRAINAGE IMPROVEMENTS LUA-00-067, SA-H,V,ECF PUBLIC HEARING DATE: October 31,2000 . Page 7 of 7 (g) Provision of adequate light and air Not applicable (h) Mitigation of noise, odors and other harmful or unhealthy conditions; The intent of the proposed project is to mitigate potentially hazardous conditions resulting from spills and leaks of petroleum products on the property, thereby reducing potentially unhealthy conditions. In order to ensure that no short term unhealthy conditions arise as a result of the construction of the proposed improvements, staff recommends conditions of approval that would require the following measures be undertaken prior to commencement of construction: • Excavated soils shall be stockpiled in an area on site to be approved by the Development Services Department prior to commencement of construction. • Stockpiled soils shall be covered if construction occurs between the months of November and April, inclusive. • The applicant shall provide the project planner with the City the date that the project is started and completed. (i) Availability of public services and facilities to accommodate the proposed use Existing stormwater facilities would be utilized for stormwater runoff from areas not subject to contamination from spills or leaks of petroleum products. (j) Prevention of neighborhood deterioration and blight The increased protection from contamination should result in the reduced likelihood that the neighborhood would become deteriorated. RECOMMENDATION Staff recommends approval of the Site Plan Review and Variance Application for the RENTON STATION DRAINAGE IMPROVEMENTS, Project File No. LUA-00-067, as proposed, subject to the following conditions: 1. Excavated soils shall be stockpiled in an area on site to be approved by the Development Services Department prior to commencement of construction. 2. Stockpiled soils shall be covered if construction occurs between the months of November and April, inclusive. 3. The applicant shall provide the project planner with the City the date that the project is started and completed. EXPIRATION PERIODS: Site Plan Approvals (SA): Two (2) years from the final approval (signature) date. Variance Approval (V): Two (2) years from the approval date, if construction has not commenced. hexrpt.doc - • . 'VALVES i . -. (NORMALLY CLOSED) SPILL CONTAINMENT DRAINS!'SEE '- DETAIL)). TYP.6,EOCAVONS i-WETLAND BOUNDARY '' 'J.'''. --; -:---- ------ -- ..------- ---------BURIED IMPERVIOUS UNER .,o,-----‘,1 ' ";., .,--7 tt 7.-I ..I•t•i-.• ..„.•'7'. A/a---.-.-= -.-,_ _ --a-aer-,-,---11 ._.--,ogr=le--7.- xtr.-.==e-tt,o--Pof "teA,•=l-trA.---•-•-='•-•*-,-,7,l'.,..; . 1( ;„•--I ----.. , ,/-Y• S./fr--...yrelk 2 0,7s1 •. PROPERTY UNE / ,-(I 'A.//'.'1 I O''. - 't - __ 4 PERFORATED DRAIN PIPE ''''''"toNCRE1 PAD'ARO,UND.P- S of Sil.E)sots-- -ArMirlyrdiv.: . • a: .d A _ - i, . . • ,.......ar .. ir r Zi'l •.e- :.. / , , N /8--7:7.-1.17.--17:91:.-..::'-:-:ii.liV '40 -.. ._ if 4,,PAYT-r-fil oer/tk•oi ,: .•• - ••'. • , 1 I - -- -- -- ' 711 ,I., it-. .••ii! .4,44r-w;e4e.,Jr, . • RIM EL 21.7 .s., SI' i; I, -tr,/2.2 i r ,'•4......k 9094s' 1 l '•••I' li'l . ', I ltI-- ,7 D , _,,...;._ . . ) • 1 ''', E-/44, . ::, . ) . :;:::' , / , •,''• Al7 3,1r'f I ' -• DAPERMEABLE UNER, ' P elk . ..: I . 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F• RENTON ..LL Planning/Building/Public Works Department • J e Tanner,Mayor Gregg Zimmerman P.E.,Administrator October 17, 2000 • Ms. Rose Ann Lopez Olympic Pipe Line Company • 2319 Lind Avenue SW Renton,WA 98055 SUBJECT: . Renton Station Drainage Improvement Project No.LUA00-068,SA-H, ECF, V Dear Ms. Lopez: 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 for the above-referenced project. No appeals were filed on the ERC determination. This decision is final. A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting in the Council Chambers on the seventh floor of City Hall, on October 31, 2000 at 1:30 PM to consider the proposed site plan approval and variance. If you have any questions, please feel free to contact me at(425)430-7382. For the Environmental Review Committee, Elizabeth Higgins,AICP Senior Planner FINALLETTER 1055'South Grady Way-Renton, Washington 98055 . :CITY �.F RENTON:. Planning/Building%Public Works Department Jesse Tanner Mayor = Gregg Zimmerman P.E.,Administrator September. 28; 2000 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 for the following project reviewed by the Environmental Review Committee(ERC)on September 26, 2000: DETERMINATION OF NON-SIGNIFICANCE'' RENTON STATION DRAINAGE IMPROVEMENT . LUA-00-068,SA-H,V,ECF;:. The Olympic Pipeline Company`has requested approval of its.proposed Renton Station Drainage " Improvement project. The proposed project would require upgrade.and_reconstruction of an existing drainage pond. This,project;would also..require.work, including construction of permanent -. features, in the 50' buffer ofan existing Category 2"wetland:. Therefore, the applicant has requested a Variance, from the Critical Area s'Ordinance and wetland regulations. Location: 2319 Lind Avenue SW. '.: : . Appeals of the environmental determination must be filed in writing on or before 5:00 PM October 16, 2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady.Way, Renton,WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110.=Additional;informatio_n regarding the appeal process may be obtained from the Renton City Clerk's;Office, (425)-430-6510. . • If you have questions, please call me at(425)430-7382. , For the Environmental Review Committee, /' b44 - • Elizabeth Higgins,AICP • Senior Planner _ • • . - cc: : King County Wastewater Treatment Division_ Larry Fisher, Department of Fisheries • . David E. Dietzman, Department of Natural Resources . WSDOT, Northwest Region - , 'Duwamish Tribal Office."';. :: ;: Rod Malcom,Fisheries,•Muckleshoot Indian Tribe(Ordinance) , • US Army Corp,'of Engineers Agancytrr� 1055 South Grady Way Renton;Washington 98055 . Ti.ic n�nn nnnl�ine CflO rnn..nln. .,, t ,4 l OAO nnN nnnc.....n• ' • CITY OF RENTON . . DETERMINATION OF NON-SIGNIFICANCE- ADVISORY NOTES -APPLICATION NUMBER: •. •LUA-00-068,SA-H,V,ECF '. APPLICANT: Olympic Pipeline Company. PROJECT NAME: _ Renton Station Drainage Improvement DESCRIPTION OF PROPOSAL: The Olympic Pipeline.Company has requested approval of its • .-.proposed.Renton. Station Drainage Improvement project. _The proposed project would require upgrade and reconstruction of an existing drainage pond. This "project would also' 'require work, including construction of permanent features, 'iri the 50' bUffer of an existing Category 2 wetland. Therefore, a Variance,from the Critical Areas Ordinance and wetland regulations,_has been requested by the applicant. LOCATION OF PROPOSAL: 2319 Lind Avenue SW 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. Fire Prevention: 1: Provide detailed information on the spill containment and spill notification'alarms or detection. 2. . Separate plans and permits are required for changes;to any fuel:piping systems.. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. _ • Surface Water Utility: • - 1: Show drainage basin delineation for existing and proposed site;;conditions. 2. Clearly show land use areas and quantities for,existing conditions. This should include soil types and assumed land cover. 3.: Demonstrate how the runoff coefficients and time of concentrations were determined. Show calculations with assumptions and references. _ 4:;, Show profile of storm drain system. Include all utility crossings on the profile. 5. . Label oil/water separator on plans and include a detail of structure. : 6. Clarify how the runoff that infiltrates through the sand layer above the impervious liner is.conveyed to .the storm system. Clarify if there is an under drain system that serves this function. . 7. An erosion control plan will be required prior to obtaining construction permits. Development/Planning: 1. The proposed project site is located in the Industrial-Heavy(IH)Zone. 2: A construction permit will be required prior to initiation of work: _ ' 3. A wetland buffer restoration plan will be required prior to issuance of the required construction permit. Replacement buffer area can be located on non-developed portion of Olympic Pipeline property.: advisorynotes CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE APPLICATION NUMBER: LUA-00-068,SA-H,V,ECF APPLICANT: Olympic Pipeline Company PROJECT NAME: Renton Station Drainage Improvement DESCRIPTION OF PROPOSAL: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond. This project would also require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, a Variance, from the Critical Areas Ordinance and wetland regulations, has been requested by the applicant. LOCATION OF PROPOSAL: 2319 Lind Avenue SW LEAD AGENCY: City of Renton Department of Planning/Building/Public Works Development Planning Section This Determination of Non-Significance is issued under WAC 197-11-340. Because other agencies of jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14)days. Appeals of the environmental determination must be filed in writing on or before 5:00 PM October 16,2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton,WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)-430-6510. PUBLICATION DATE: October 2, 2000 DATE OF DECISION: September 26, 2000 SIGNATURES: a 9/6/0 0 Gregg Z mm n, Ad ' is a r DATE Departmen of la /Building/Public Works )s .-- / o7 (vV76 d fm Shepher ,Administrator DA �ommunity Services Department I Le ee er, Fire Chief DATE R nton Fire Department dnssignature F,,.; .. ; CITY F ,.RENTON ..� " . - . :Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator • September 28, 2000 • Ms. Rose Ann Lopez Olympic Pipe Line Company • 2319 Lind Avenue SW -, Renton,WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA00-068, SA-H, ECF,V • Dear Ms. Lopez:. This letter is written on behalf of the Environmental Review Committee (ERC) and is to inform you that they have completed their review of the environmental impacts of the above-referenced project. The Committee, on September•26, '2000, decided that your project will'be'issued a Determination of Non- Significance. The City of Renton ERC has determined that it does not have a probable'significant adverse impact on the environment. An Environmental Impact Statement(EIS) is not required Under ROW 43.21C.030(2)(c). This decision was made by the ERC under the authority of Section 4-6-6, Renton Municipal Code, after review of a completed environmental;checklist and other"information, on file with the lead agency. This information is available to the public on request: .:. Appeals of the environmental determination must be.fled in writing on or before 5:00 PM October 16, 2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110: Additional information regarding the appeal process may be obtained from the Renton City Clerk's:Office,'(425)-430-6510. • _ A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting. in the Council Chambers on the seventh floor of City Hall, on October31, 2000 at 1:30 PM to consider the proposed site _ plan approval and variance. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing: • . If you have any questions or desire clarification of the above,'please call me at(425)430-7382. For the Environmental Review Committee; Elizabeth Higgins,AICP Senior Planner dnsletter 1055 South Grady Way Renton,Washington 98055 _ [il Sn 7n L nnet rr-� d ) t 4 CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE ADVISORY NOTES APPLICATION NUMBER: LUA-00-068,SA-H,V,ECF APPLICANT: Olympic Pipeline Company PROJECT NAME: Renton Station Drainage Improvement DESCRIPTION OF PROPOSAL: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond. This project would also require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, a Variance, from the Critical Areas Ordinance and wetland regulations, has been requested by the applicant. LOCATION OF PROPOSAL: 2319 Lind Avenue SW 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. Fire Prevention: 1. Provide detailed information on the spill containment and spill notification alarms or detection. 2. Separate plans and permits are required for changes to any fuel piping systems.. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. Surface Water Utility: 1. Show drainage basin delineation for existing and proposed site conditions. 2. Clearly show land use areas and quantities for existing conditions. This should include soil types and assumed land cover. 3. Demonstrate how the runoff coefficients and time of concentrations were determined. Show calculations with assumptions and references. 4. Show profile of storm drain system. Include all utility crossings on the profile. 5. Label oil/water separator on plans and include a detail of structure. 6. Clarify how the runoff that infiltrates through the sand layer above the impervious liner is conveyed to the storm system. Clarify if there is an under drain system that serves this function. 7. An erosion control plan will be required prior to obtaining construction permits. Development/Planning: 1. The proposed project site is located in the Industrial—Heavy(IH)Zone. 2. A construction permit will be required prior to initiation of work. 3. A wetland buffer restoration plan will be required prior to issuance of the required construction permit. Replacement buffer area can be located on non-developed portion of Olympic Pipeline property. advisorynotes NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON,WASHINGTON The Environmental Review Committee has issued a Determination of Non-Significance for the following project under the authority of the Renton Municipal Code. RENTON STATION DRAINAGE IMPROVEMENT LUA-00-068,SA-H,V,ECF Environmental review for proposed upgrade of existing drainage pond. A variance from the Critical Areas Ordinance and wetland regulations is requested. Location: 2319 Lind Ave. SW. Appeals of the environmental determination must be filed in writing on or before 5:00 PM October 16, 2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)-430-6510. A Public Hearing will be held in the Council Chambers of City Hall, October 31, 2000 at 1:30 PM to consider the proposed site plan and variance. If the Environmental Determination is appealed, the appeal will be heard as part of this public hearing. Publication Date: October 2, 2000 Account No. 51067 dnspub _ ENVIRONMENTAL DETERMINATION POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT PROJECT NUMBER: LUA-00-068,SA-H,V,ECF - •• The Olympic Pipeline Company has requested approval of Its proposed Renton Station Drainage ' Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond.This project would also require work,Including construction of permanent features,In the - 50'buffer of an existing Category 2 wetland.Therefore,the applicant has requested a Variance,from the Critical Areas Ordinance and wetland regulations.Location:2319 Lind Avenue SW. THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED ' THAT THE PROPOSED ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. A Public Hearing will be held by the Renton Hearing Examiner at his regular meeting In the Council Chambers on the seventh floor of City Hall,on October 31,2000 at 1:30 PM to consider the proposed site plan approval and variance. If the Environmental Determination Is appealed,the appeal will be heard as part of this public hearing. Appeals of the environmental determination must be filed in writing on or before 5:00 PM October 16, 2000. Appeals must be filed In writing together with the required$75.00 application fee with:Hearing Examiner,City of Renton,1055 South Grady Way,Renton,WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional Information regarding the appeal process may be obtained from the Renton City Clerk's Office,(425)-430-6510. 1' 1 I r d .1 j`. all,,,ill{' I ;. '°' �;Olympic Pipeline i sn L(jjl ��" ; 1.7.,•:y-.I.j Proj'c See l j�.; ,iI i._. - '-`-�SW 22I7°'I l �i/4-.••.:I -mot n .,...-...., . ,:..:- �- • FOR FURTHER INFORMATION,PLEASE CONTACT THE CITY OF RENTON,DEVELOPMENT SERVICES DIVISION AT(425)430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION ' Please include the project NUMBER when calling for proper file Identification. CERTIFICATION I, 4rtji/vee_ D c,,t,,,,fi , hereby certify that 3 copies of the above document were posted by me.in 3 . conspicuous places on or nearby the described property on S.e:p f- , Z5 Z.Joc-) . • Signed: 2 ATTEST: Subcribed om before me,a Nortary Public, in and for the State of Washington residing in ,on the 3r2.49 day of do 7j, 0 -61, - t r L. 1 MARILYN KAMCHEFF C° Ara... v‘-1-'61 4R NOTARY PUBLIC STATE OF WASHINGTON ` COMMISSION EXPIRES MARILYN KAMCHEFF E JUNE 29, 2003 I, MY APPOINTMENT EXPIRES:6-29'03 do — - 4,0 Car — $ v — — 41 REPORT City of Renton & Department of Planning/Building/Public Works DECISION ENVIRONMENTAL REVIEW DECISION DATE: September 26, 2000 (Revised report to the Committee, additions to this report, provided by the applicant since the ERC meeting of August 1, 2000, are indicated herein by bold italic type) Project Name: OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT Applicant: Rose Ann Lopez Olympic Pipeline Company 2319 Lind Avenue SW Renton,WA 98055 Owner: Olympic Pipeline Company/BP Amoco File Number. LUA00-068, SA-H, ECF, V Planner. Elizabeth Higgins Project Summary: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond. This project would also require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, a Variance, from the Critical Areas Ordinance and wetland regulations, has been requested by the applicant. Project Location: 2319 Lind Avenue SW Exist. Bldg. Area SF: N/A Proposed Area SF: N/A • Site Area: 11.77 acres (project area 6.8 acres +/-) Total Building Area SF: N/A l ram- r die ��F t � l:'=;: L""__�: Ic- y=-0'_q � l `.,r_ ago SW''19 —'1 � `�' e. to _ .✓ ' •11 OPIPEIlNE COMPANY RENTON flENTON STATION I ;Olympic Pipeline co�- S r_ '•� ppAINAGE IMPROVEMENT PROJEOT I P/L trA,41, 7^— Nunn scale yF oo,i + ' -I �'eCt Q - >' ( 1 I . E.awa aye waama"anaa a V ---== Prot Site; a� l I� �� Induswal Il— --r— T':. W 7t'' �: cri S 2 1• - -1 L_ 1r �'jti; I Ili i i is^ r. W iy= lh,ty "\.tom SW 30th '. ' ___ : = -�; ; Project Location Map erQpLdoc Cry of Renton PB/PWDepartment Envir ntal Review Committee Staff Report , OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OFSEPTEMBER 26,2000 Page2 of9 PART ONE: PROJECT DESCRIPTION/BACKGROUND Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. Renton Station is the location of an Olympic Pipeline Company facility that handles transmission pipelines, pumps, valves, and a storage tank used for transport of refined petroleum products from Anacortes, Washington. Renton Station also has administrative and operations buildings on the property. The facilities used for the transport of petroleum products are subject to leaks and spills of the products. The intent of the proposed project would be to segregate runoff originating in the north part of the property, that is subject to contamination from spills and leakage of petroleum products, and route that runoff to an on-site containment pond. The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas, including Category 2 wetlands, adjacent to the site. The proposed project includes construction of a drainage containment pond, new drainage pipelines, several concrete spill containment pads, an impermeable liner within an existing spill containment area, and a subsurface impermeable liner within certain unpaved (gravel) areas of the site. This project would require work, including installation of new storm drainage features, in the 50' buffer of an existing Category 2 wetland located to the west and at the north part of the site. The proposed work is not included in the "Allowed and Regulated Activities"within wetland buffers (RMC 4-3-110K). A Variance has been requested by the applicant so that proposed work within the buffer could commence. The work requiring the Variance to allow construction within the 50' wetland buffer includes removal of approximately 12" of topsoil, installation of a subsurface, impermeable liner, replacement of soil with gravel, and the increase in size of an existing embankment around a drainage pond. A concrete spill containment pad would also be partially (approximately one-half) located in the 50' wetland buffer. The proposed upgrade and reconstruction of the new pond would increase the "footprint" of the existing pond (37,800 square feet) to 39,900 square feet. The property is in an Industrial - Heavy (IH) Zone. The existing use, "large utility" is a conditional use, which is typically permitted following Hearing Examiner review, in this zone. While expansion of an existing conditional use would normally require Hearing Examiner approval, the proposed project has been deemed a "technological upgrade", rather than an expansion. Therefore, the Hearing Examiner will not be asked to consider the Conditional Use Permit. The project site is located in the Employment Area Valley Planning Area (Comprehensive Plan). All development within the Employment Area Valley Planning Area typically requires Site Plan Review. Because the project area, at approximately six(6) acres, is less than ten (10) acres in size, the site plan would typically be reviewed administratively, except that, for this project, a Variance is required. Therefore, the Hearing Examiner will be asked to consider and approve the site plan, as well as the Variance request. The proposed work would commence as soon as approvals are received from the City of Renton, and would be scheduled for completion in Autumn 2000. The Washington State Department of Ecology will also provide oversight to this project. The proposed work at Renton Station is part of the Facility Storm Water Management System proposal for the installation of containment systems at all of Olympic's stations and delivery facilities. A report was submitted to the Washington State Department of Ecology in June 2000. The Renton portion of this project was scheduled by November 2000, or within 6 months of receipt of all permits. ercrpt.doc City of Renton PB/PW Department Envir ntal Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF SEPTEMBER 26,2000 Page3 of 9 Regarding corrective actions currently underway, the remediation and air sparging system responsible for the August 29, 1999, release is still in operation at the Renton Station. Olympic Pipeline Company is working with the Washington State Department of Ecology(Ms. Elfin Storey in the DOE Northwest Regional office) on continued monitoring and remediation of the release site. PART TWO: ENVIRONMENTAL REVIEW In compliance with RCW 43.21C.240, the following project environmental review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. A. Environmental Impacts The Proposal was circulated and reviewed by various City departments and divisions to determine whether the applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development. Staff reviewers have identified that the proposal is likely to have the following probable impacts: 1. Earth Impacts: The Olympic Pipeline Company facility is built on approximately ten feet of fill (silty sand with gravel) overlying alluvial sediments. Filling took place approximately twenty years ago. On August 29, 1999, 3,368 gallons of petroleum product was released at the Renton facility when an injection pump mechanical failure occurred. The release occurred in the area just north of the northeast corner of the 10,000-barrel utility tank earth berm, and pooled in the asphalt area between the earth berm and mechanic's shop. The release was contained, free product was removed, and petroleum-contaminated soil was excavated. However, due to the presence of subsurface and surface facilities, not all of the impacted soil could be removed. Therefore, petroleum-impacted soils are still present. A remediation system utilizing air sparging technology to treat both soil and groundwater, is currently in operation. However, it is possible that during excavation for the proposed project, some petroleum-impacted soil could be encountered. Olympic proposes that during construction, the soil will be excavated in lifts and stockpiled. A sample will be collected from each stockpile and tested for the presence of petroleum hydrocarbons. Soil that does not meet state standards will be transported to TPS Technologies for incineration at their Lakewood, Washington facility. GeoEngineers, Inc. will be on site to collect soil samples and coordinate testing. Contaminated soil will be hauled off site by TPS Technologies. The trucks will enter the northeast corner gate and will be loaded by the construction contractor. The truck will exit from the exit gate located on the south side of the facility, and will continue south on Lind Avenue Southwest to Southwest 415t Street to Highway 167 to Highway 512. The truck will follow Highway 512 to the TPS Technologies facility located at 2800- 104°' Street Court South in Lakewood Washington. Approximately 100 cubic yards of new fill would be imported to create an embankment for a drainage containment pond. ercrpt.doc City of Renton PB/PWDepartment Envir ntal Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF SEPTEMBER 26,2000 Page4 of9 Approximately one foot of existing soil from the north part of the site will be temporarily removed and stockpiled on site while an impermeable liner is installed in the area. Approximately 900 cubic yards of sand and drain rock will be brought on site as initial backfill over the liner, then approximately 900 cubic yards of stockpiled material will reinstalled and the remaining 900 cubic yards of stockpiled material will be hauled off site or wasted on site. Soil erosion could result during the construction phase of the project, therefore a Temporary Erosion and Sedimentation Control Plan will be required prior to receiving a construction permit. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 2. Air Impacts: Development of the site, as proposed, would not result in any significant long-term impacts to existing air quality. The primary impacts from development of the proposed project are related to construction activities. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 3. Water Impacts:The applicant has stated that the developed portion of the property is not in a floodplain, but according to FEMA maps, the property lies within the 100-year floodplain, with a base elevation at this location of 16'. This project would require work in the buffer of an existing wetland. Therefore, a Variance from the Critical Areas Ordinance has been requested by the applicant. Staff recommends that mitigation for wetland buffer impacts be required for this project. A Wetland Study, by Berger/ABAM Engineers, Inc., dated May 19, 2000, was submitted with the application. This study verifies a description by Jones and Stokes of the wetland complex on the property, "High quality habitat; one of the highest quality wetlands in the City" (Critical Areas Inventory, dated 1991). Type 2 wetlands are located to the west and north of the developed portion of site, within the property boundaries. The 50'wetland buffer extends onto the developed portion of the site. Existing portions of the Olympic Pipeline facility are located within the 50' wetland buffer. The proposed project would require construction and placement of permanent structures within the 50' wetland buffer. If the variance request that would allow this work is approved, a wetland mitigation plan demonstrating replacement of wetland buffer areas, that would be lost due to construction of this project, in ratios determined by the Renton Municipal Code would be required. Replacement wetland buffer area could be located on non-developed portion of Olympic Pipeline property. The west half of the property is located within the Springbrook Creek Conservancy Environment of the City of Renton Shoreline Master Program. The project area for work proposed by this land use application is located on the east portion of the property, more ercrpt.doc City of Renton PB/PW Department Envin, ,nta1 Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF SEPTEMBER 26,2000 PageS of 9 than 200' from Springbrook Creek(the creek is located approximately 0.5 mile from the developed portion of the property). While work is proposed to occur within the wetland buffer, no work has been proposed within the"shoreline wetland"that is adjacent to the project area, therefore the proposed project is not subject to Shoreline Master Program requirements. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 4. Stormwater Impacts: Of the 11.77 acre site, approximately one-half, the east portion, has been developed. The west, undeveloped, portion includes a Category 2 wetland and, on the west property boundary, Springbrook Creek. The southeast quarter of the site has been developed with administrative and operation buildings, crushed rock parking areas, and asphalt-paved driveways and parking areas. The northeast quarter has pipelines, pumps, and hydraulic equipment designed to handle the refined petroleum products and other materials. Runoff from the southeast portion is collected in small diameter pipes that are routed to a drainage pipeline along Lind Avenue SW. The Lind Avenue pipeline runs northward approximately 100 yards where it discharges into an unnamed drainage channel that flows westward to Springbrook Creek. Some of the runoff from the southeast part of the site flows overland westward to an existing drainage pond. Runoff from the northeast portion of the site is generally in the form of surface flow, some of which is collected into small pipelines running westward to a small drainage pond at the northwest corner of the site. Both of the storage ponds have small capacity and no outlet control. The following stormwater improvements are proposed by the applicant: • Create two separate drainage areas by means of a defined grade break, by constructing a low asphalt ridge, to segregate surface water runoff that originates from the north part of the site from the runoff that originates in the south part of the site. In the newly created "north drainage area"the following is proposed: • Install drain pipes and catch basins; route the pipes to an oil-water separator, and then to a new stormwater containment pond located on the west side of the site (and the location of an existing pond). • Install concrete spill containment pads that are connected to the drainage pipeline. One pad will be used for parking tanker trucks during the loading of petroleum products. Another pad will be used for parking tanker trucks during the unloading of chemicals that are injected into the petroleum pipelines. Approximately one-half of one of the above concrete pads will be located within the 50'wetland buffer. Approximately 3200 sf of new impervious surface would be created as a result of these new containment pads. ercrpt.doc City of RentonPB/PWDepartment Envin vital Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OFSEPTEMBER 26,2000 Page6 of9 • Install miscellaneous small containment pads at pumps, scraper, and launcher/receiver doors. As part of this design proposal, bermed concrete containment areas will be placed at locations where there could be a higher risk of a petroleum product release. These include areas around pumps and seals, as well as the utility tank and sump tank As noted on the Site Plan, these bermed areas will drain through a series of valved piping, through a weir, and eventually into a lined storm water containment pond near the southwest corner of the Renton Pump Station. The bermed areas will be individually valved, with the valves in the normally closed position. • Install valve on drain line from each containment pad. The valves will normally be in a closed position to prevent any spilled material from entering the drainage system. Upon inspection by Olympic Pipeline operations staff to ensure that no contaminants are in the containment pads, the valves will be periodically opened to release captured rain water to the drainage system. The valves will be manually operated by an Olympic/BP Amoco field specialist. During the field specialist's routine inspection of the facility, the field specialist will visually inspect the containment and berm areas. If the water within the contained area is free of hydrocarbon sheen, the valve would be opened and the water allowed to discharge into the piping, through the weir and, eventually, to the containment pond. However, if a sheen is present, then the water from that area would either be pumped into a vacuum truck for offsite treatment/disposal, or pumped through an on site or portable treatment system, likely portable carbon filters, or in certain instances, pumped into an on site tank for future treatment or disposal. A system of valves is proposed. Based on the visual inspection that the field specialist performs, as outlined above, the water will be allowed to flow to the designated containment area as shown on the west side of the property. However, before entering the main containment area, the water will pass through the weir that will contain a hydro-affinic packing material, such as polypropylene. The weir will also be equipped with alarms that would notify the control center of a potential release. Therefore, the weir will serve as an additional barrier preventing hydrocarbons from reaching the containment pond. Another valve will be located at the discharge point from the main containment pond. In previous meetings and discussions, the City of Renton has asked that this valve remain in the normally open position so as not to modify the flow of surface water into the wetlands area located on the west side of the fenced area, also owned by Olympic Pipeline Company. The Washington State Department of ecology has indicated a preference, shared by Olympic Pipeline, that the valve remain in the normally closed position to serve as yet another check against any petroleum product entering into the wetlands area. As with the other valves, should this valve be kept in the normally closed position, the area field specialist would visually inspect the containment pond and, if no product were present, the valve would be opened to allow discharge to the wetlands area. Storm water discharges will be logged as to date, time, and person opening the valve(if applicable). ercrpt.doc City of Renton PB/PW Department Envir ntal Review Committee StaffReport , OLYMPICPIPELINERENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA H,ECF, V REPORT AND DECISION OFSEPTEMBER 26,2000 Pagel of • Install a new impermeable liner inside the existing spill containment area for the existing 10,000-barrel steel tank. The containment area is created by an earth embankment. The liner is intended to prevent spilled or leaked substances from entering into subsurface soils. The interior of the containment area will be connected to the new drainage system via a pipeline. A valve on the pipeline will normally be in a closed position. The valve will be opened periodically to release captured rain water. • Install a subsurface impermeable liner in other areas of the north drainage area to prevent contaminants from seeping into the ground. • Reconfigure a stormwater containment pond, located on the west side of the project site, into which runoff from the north drainage area would be routed. The earth embankment of the existing pond, a portion of which lies within the 50' wetland buffer, will be increased in size. The existing pond has a small storage volume because there is no outlet control. The intent of the new pond is to provide outlet control and a larger storage volume to capture spilled material and contaminated runoff water; the pond is not intended to serve as a stormwater detention facility to reduce peak flow discharge rates. The pond will include an impermeable liner, a low-level outlet pipe with a valve, and a high-level overflow pipe. Pond discharge will be westward into a vegetated area, a Category 2 wetland and buffer, at the same location where the existing pond discharges. The containment pond can be operated with the valve in either the normally open or normally closed position. If operated in the normally closed position, the pond will gradually fill with runoff water. A some water elevation before the water level reaches the overflow elevation, Olympic Pipeline staff will check for contaminants, and will then open the valve if there is no contamination. If the pond is operated with the valve normally open, runoff water will pass freely through the pond with no significant increase in water elevation. Operations staff will close the valve if a leak or spill occurs to prevent contaminants and runoff from being released. Olympic Pipeline staff will be responsible for determining the most effective mode to operated the control valve, and for removing any contaminants that are trapped in the pond. The "mode of operation of the control valve"refers to the normal operating position of the discharge valve from the containment pond and it will be based on the recommendation of the City of Renton. Olympic field specialists will follow the visual inspection plan outlined above in order to determine if the storm water will e discharged or removed for treatment/disposal. As a further check to ensure that discharged storm water meets water quality criteria, Olympic Pipeline Company's proposal to the Washington State Department of Ecology included periodic sampling of the discharge water at Renton as well as other facilities. In the "south drainage area"the following is proposed: • Install additional drain pipes and catch basins that will tie into an existing drain pipe in the southeast corner of the site. The existing drain pipe discharges into a catch basin on the storm drain pipeline in Lind Avenue SW. ercrpt.doc City of RentonPB/PWDepartment Envir ntal Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF SEPTEMBER 26,2000 Page8 of 9 Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 5. Transportation Impacts: The project site is located on the west side of Lind Avenue SW, north of SW 27th Street. The existing access, located at the southeast corner of the project site, would be used during construction. There would be no increase in traffic due to the proposed project. No traffic mitigation would be required. Approval of the proposed Haul Route Plan is required prior to receiving construction permits. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 6. Vegetation Impacts: No trees are proposed to be removed. Development standards for the IH Zone require a minimum 15-foot landscape width along non-arterial streets. This landscape standard would apply along the site frontage of Lind Avenue SW. Currently, extensive mature landscaping exists along Lind Avenue SW. No additional landscaping will be required as a part of this application. Wetland vegetation within the wetland buffer area will be disturbed, as will vegetation located where approximately 12" of earth will be removed on the project site. Staff recommends that a wetland buffer restoration plan be submitted prior to issuance of a site preparation permit. Wetland plants suitable for the conditions on site, shall be specified on the plan and planted following completion of construction. All wetland areas and wetland buffers that are disturbed during construction shall be restored, with the exception of areas where the impermeable liner would be potentially damaged by root growth. Mitigation Measures: None required. Policy Nexus: N/A B. Recommendation Based on analysis of probable impacts from the proposal, staff recommend that the Responsible Officials make the following Environmental Determination: DETERMINATION OF DETERMINATION OF NON-SIGNIFICANCE NON- SIGNIFICANCE-MITIGATED. Issue DNS with 14 day Appeal Period. Issue DNS-M with 14 day Comment and A eal Period. Issue DNS-M with a Concurrent 14 day Appeal Period. ercrpt.doc City of Renton PB/PWDepartment Envir vital Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OFSEPTELIBER 26,2000 Page9 of 9 C. Mitigation Measures No mitigation measures are recommended. 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. Fire Prevention: 1. Provide detailed information on the spill containment and spill notification alarms or detection. 2. Separate plans and permits are required for changes to any fuel piping systems.. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. Surface Water Utility: 1. Show drainage basin delineation for existing and proposed site conditions. 2. Clearly show land use areas and quantities for existing conditions. This should include soil types and assumed land cover. 3. Demonstrate how the runoff coefficients and time of concentrations were determined. Show calculations with assumptions and references. 4. Show profile of storm drain system. Include all utility crossings on the profile. 5. Label oil/water separator on plans and include a detail of structure. 6. Clarify how the runoff that infiltrates through the sand layer above the impervious liner is conveyed to the storm system. Clarify if there is an under drain system that serves this function. 7. An erosion control plan will be required prior to obtaining construction permits. Development/Planning: 1. The proposed project site is located in the Industrial—Heavy (IH)Zone. 2. A construction permit will be required prior to initiation of work. 3. A wetland buffer restoration plan will be required prior to issuance of the required construction permit. Replacement buffer area can be located on non-developed portion of Olympic Pipeline property. 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 Appeal Process: Appeals of the environmental determination must be filed in writing on or before 5:00 PM October 16, 2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, 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)-430-6510. ercrpt.doc • • • • • . . . z .7At. ,74,,,... I N E�R l ei • � I -----)M1-1 xli, - fa • .. ,„„) ...tch V.,„mt.._ N........0, i y' It id' ` # Olympic , . -.0:14* , 40, A6-liAL PIPE LINE • • N� COMPANY • • • • i! [�• I illT"jili I APPRO.EL ELEVATION 1 y f1 F APPROX EL 13.0 PER ��1- T,r`,(t1�7 `.•� �.-��'•i-,��. 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EROSION CONTROL NOTES, TECHNICAL SPECS .�}r\ '., I •� �'�l: I, C-0I SITE PLAN �` �� APPROX IW YEAR 4yC )�.•� It C-02 DETAIL SHEET FLOOD PLAIN BOUNDARY K—�_ = I�.. -167 FTAIL C-03 DETAIL SHEET _803.3D�IIR� 1 -�_:II�' �� ■ S-0I STRUCTURAL DETAILS '-1 �1'_NUllk� 9g�l�1i NI �i I ' I VICINITY MAP • • SITE MAP NORRONIAL DATUM: ENGINEER ea OLYMPIC PIPE LINE COMPANY '� 333019TH AVENUE SOUTH VERTICAL DATUM: [RATTER 2 R.neneWe011npfen Avenue W FEDERAL WAY,WASHINGTON ran [NGINC[RINa TITLE TSHEET NOTE BOOKS: CNECK BE!lGER/ARAM POW3-2fi00 RENTON STATION L E 0 R 1 VOICE:(2013)431-2300 [RAFTING '+e. PAX: (206)431-22S0 NO. REVISIONON BY [NECKED APPROVE', CHECK M P—DRAIA AGE IMPROVEMENT. PROJECT nos wawa mrso ALL s o.AFL NO'S: APPROVED D1TC 5[AtL: irAAMINO N0. f OF6ii 0 REFERENCE DRAWINGS AM/ANY Gong.THrNr r(PAWL.on cournij a nr nvwNro TO THE omm.ON MIA.. • NONE T-1 0 1 I I_ ic....._i_.1._____._--/=Fi._ _ _i_ I{ I T \� ,\of. , 1 t'I. 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S TER RUNOFF 1 _ y .'y -•' I OUT W 16.12 ( HI CONTAINMENT POND �PI9��/],�f% __ `'f 4 CB 7 ' jj)J)j(\`S)J ' / 1'+' ♦.'� RIM EL.21.5 I ((• "1�0 �� IE 15.50 - ���1l�llf . �� TIE OUT(S)19.8 XV 4`'4.yam=4I9. d e -___________ ♦ ! • POND E \ ;A t�CEIA INTENANCE I -'(' .. , - A ' DISCHARG '', SS RAMP • • EXISTING CHAIN LINK \ "_'_ l i' I • - !II I, FENCE. PROJECT SITE ♦ \ :I I. ri�yv I i I I I' •BOUNDARY AND LIMIT - 7 F 8'PVC • II! OF CONSTRUCTION AREA/-� I-.�• S=.0044FT FT ,' II L��-�\ \ a` �.:.;,I/' !.I,., ': CB 9 ' ♦ 50 v' �'' RM EL 21.5 I(:� a 'II RIM EL 220 I • UFFE • IE IN(N 19.12 �: I;j IE IN(W),17.90 • B R ` I j) '! IE OUT(( 17.9f ♦ IE OUT(E)19,12 I I \ ) I TEMPORARY EROSION CONTROL: ' - i' .. , FILTER FABRIC FENCE \_,\./ /�"' `/1 I r- .',II ! AND/OR HAY BALES \ /. ' I _ I I I ALONG WEST BOUNDARY 1 /%//�•--_ •l OF PROJECT SITE.k\♦'�^ %�� _ I_ _ I " _ -___ __-_. \ '':' `/ RIGHT OF WAY i:'•- •.. "I'I' _ : /I" PROPERTY LINE v ___ _ _ _ _ _ _ _ - - -,- ..• -�+-'' .. • .. I • 30 0 30 60 • a i_ r-3o' c - � SW 23rd R/W .I I Teat I . 110RR0.NTAL DATUM: CNCIEEER p�,,R OLYMPIC,PIPE LINE COMPANY •BB►► AS UM Arrow S.W. 333019TH AVENUE SOUTH VERTICAL WM9b DRAFTER -�� Renton.WasIVnpton FEDERAL WAY,WASHINGTON CNCIN[FAINO SITE PLAN NOTE BOONS: CNECK BERGER/ABAM VOICBI(006w•FnNO RENTON STATION E. FAX( 0)431--2500 RRonoNr Me Ma N�� . FAX(ZO6N31.7250 NO. REVISION BY cN[CIt[O APPROVED • CHECK M.P. DRAINAGE IMPROVEMENT PROJECT EXPRIMSIN ...LE AR NO'S: • -APPROVED OM 9GMi� IDRAWINO NO. 3 OF6 IREV.Kt REFERENCE DRAWINGS .NO N.COMES iNrncorr(..RO.L OR COM FOR TIE PLETE)[)SHALLIT IS TO T.OM..OR Dci.No. 1'=30' C-1 I 0 R.Vey IT IPA.sia... ....O11O4.0.1mm10.,110-51.0.snx 2 YR. FLOOD ELEVATION APPROX. EL. 13:0 PER CITY OF RENTON DATA b SI in I ..,„.--- P/L 1 UNNAMED DRAINAGE CHANNEL ( WETLAND ) ID) < - - - - CY1 0 EL < --_____, I I I I 911.07' ,- - ------ (:).--,._L- • - • - • - -_:. '-i-- • .---• -11-1 - ,- :' X )7--T- X-- • / / -- -----7.-- 1, giti _ APPROX. 100-YEAR -- T I 1 FLOOD PLAIN BOUNDARY 1 x I NI : a) i nt: WETLAND E 1 \ in • ‘1. EXISTING CHAIN LINK J ' , i- • =i FENCE. PROJECT SITE ix it . r•- BOUNDARY AND LIMIT i 1 . f lir ., v ., L. -- 002IPIC 'MIRE OFFICE BUXOM OF CONSTRUCTION AREA --,....„,..111x in WETLAND BOUNDARY I , 0 1 \\ I x 903.30' - I 0 - ..,...:72,.,::. ,-;- :-:=L________i__I HkA i-A‘i J . , . . .. ,.. 100 0 100 2 FLOOD PLAIN MAP 1 - - scale fee 2 YR: FLOOD'ELEVATION APPROX. EL. 13.0 PER CITY OF RENTON DATA 0 N • L UNNAMED DRAINAGE CHANNEL o WETLAND 0 Q 1 ui • I �- P/L 911.07' .-- - -I r—--' o� � X a � o APPROX. 100 YEAR � j--X--' FLOOD PLAIN BOUNDARY x —= , + WETLANDcn ( ° I EXISTING CHAIN LINK 1 LC) rJ• _ � xti z i FENCE. PROJECT SITE /'x - BOUNDARY AND LIMIT I -'= ' 1") ii �' A OF CONSTRUCTION AREA I .,� z �x — Ia V\ WETLAND BOUNDARY 0`. • 5�, 1f\ 8 ' . ® . I 1 ,\ o \\ x ' x x x I _ 903.30 r, • (.0 — — H 11 I1 100 0 100 FIGURE 2 , - - �= scale fee - CITY- F RENTON :: : . • - Planning/Building/Public Works Department J e Tanner Mayor : Gregg Zimmerman P.E.,Administrator • :.September 26, 2000 • Ms. Rose Ann Lopez. Olympic Pipe Line Company • 2319 Lind Avenue SW. • Renton,WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA00-068, SA-H, ECF,V. Dear Ms. Lopez: This letter is to inform you that the time of the public meeting to discuss the above referenced project has been changed. " • Due to a scheduling conflict, this project is now scheduled to be heard at a public meeting _ before the Renton Hearing Examiner at his regular meeting in the Council Chambers on • the seventh floor of City Hall, on October 31,2000 at 1:30 PM. I hope this change is not an inconvenience for you and your consultants. ...... The applicant or representative(s)of the applicant is required to be present at the public. • hearing: • Please contact me, at(425)430-7382, if you have any questions. • Sincerely, �!z46 Elizabeth Higgins,AICP • Senior Planner • ocecptencc86 . ,1055 South Grady Way-Renton,Washington 98055 : , t. CITY: F .RENTON ma ' = '' Planning/Building/Public Works Department Jesse Tanner •,Mayor Gregg Zimmerman P.E.,Administrator September 12, 2000 4.=' Ms. Rose Ann Lopez Olympic Pipe Line Company . 2319 Lind Avenue SW Renton, WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA00-068, SA-H, ECF, V Dear Ms. Lopez: This letter is to inform you that the date of the-,e public meeting to discuss the above referenced project has been changed. Due to a scheduling conflict,this project is now scheduled to be heard at a public meeting before the Renton Hearing Examiner at his regular meeting in the Council Chambers on the seventh floor of City Hall, on October 31, 2000 at 9:00 am. I hope this change is not too great of an inconvenience for you and your consultants. The applicant or representative(s) of the applicant is required to be present at the public hearing.. .: The Environmental Review Committee is still scheduled to consider the information you provided at their meeting of September 26, 2000. Please contact me, at(425) 430-7382, if you have any questions. Sincerely, . ...„.„4.45 • Elizabeth Higgins,AICP . • Senior Planner .• • 1055 South Grady Way-Renton,Washington 98055 - . 04 This caper contains 50%recycled material.20%post consumer CITY :F .RENTON .-") Planning/Building/Public Works Department Jesse Tanner;Mayor Gregg Zimmerman P.E.;Administrator September 5, 2000 , Ms. Rose Ann Lopez Olympic Pipe Line Company ' 2319 Lind Avenue SW_ Renton, WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA-00-068, SA-H, ECF, V , Dear Ms. Lopez: •The Development Planning Section of the City of Renton has received your response to our letter of August 2, 2000 "Hold Letter." Your responses will be included in a revised staff report to the Environmental Review_Committee (ERC). The continued ERC review of this project is now tentatively scheduled for September 26, 2000. Prior to that review, you will be notified if any additional information is required to ' continue processing your application.,: This project has tentatively been scheduled to be heard at a public meeting before the Renton Hearing Examiner at his regular meeting in the Council Chambers on the seventh floor of City Hall, on October 24,:2000 at 9:00 am. The applicant or representative(s) of the,applicant is required to be present at the public hearing. - Please contact me, at(425) 430-7382,if you have any questions. Sincerely, /T Elizabeth Higgins, AICP Senior Planner r • • • acceptance#3.doe — .1055 South Grady Way-Renton,Washington 98055 • - ®This paper contains 50%recycled material,20%post consumer • y 0111Mpic PIPE LINE OLYMPIC PIPE LINE COMPANY COMPANY 2319 LIND AVE.S.W. � CITY�OFR W P.O. BOX1800 RE/s August 30, 200 RENTON,WASHINGTON 98057 (425)235-7736 S E P 0 1 2000 BUILDING DIVISION Ms. Elizabeth Higgins Senior Planner, AICP City of Renton 1055 South Grady Way Renton, WA 98055 RE: Renton Station Drainage Improvements Project LUA00-068,ECF,V,.SA-H-Hold Letter Dear Ms. Higgins: I am writing this letter in response to the questions you posed in your August 2, 2000 Hold Letter regarding the Olympic Pipe Line Company Renton Station Drainage Improvements Project. The operation of Olympic Pipe Line Company has recently changed to BP Amoco. Olympic/BP Amoco looks forward to working with the City of Renton in implementing this petroleum products containment project, as well as the improvements to surface storm water flow at our Renton facility. I shall restate each question,with the response immediately following: 1. Explain, in narrative, how the proposed valve system is intended to function (operations and maintenance). As part of this design proposal, bermed concrete containment areas will be placed at locations where there could be a higher risk of a petroleum product release. These include areas around pumps and seals, as well as the utility tank and sump tank. As noted on the Site Plan, these bermed areas will drain through a series of valved piping, through a weir, and eventually into a lined storm water containment pond near the southwest corner of the Renton pump station. The bermed areas will be individually valved, with the valves in the normally closed position. The valves will be manually operated by an Olympic/BP Amoco field specialist. During the field specialist's routine inspection of the facility, the field specialist will visually inspect the containment and berm areas. If the water within the contained area is free of hydrocarbon sheen, the valve would be opened and the water allowed to discharge into the piping, through the weir and, eventually, to the containment pond. However, if a sheen is present, then the water from that area would either be pumped into a vacuum truck for offsite treatment/disposal, or pumped through an on site or portable treatment system, likely portable carbon filters, or, in certain instances,pumped into an on site tank for future treatment or disposal. Ms. Elizabeth Higgins August 30, 2000 Page 2 Please note that a system of valves is proposed. Based on the visual inspection that the field specialist performs, as outlined above, the water will be allowed to flow to the designated containment area as shown on the west side of the property. However, before entering the main containment area, the water will pass through the weir that will contain a hydro-affinic packing material, such as polypropylene. . The weir will also be equipped with alarms that would notify the control center of a potential release. Therefore the weir will serve as an additional barrier preventing hydrocarbons from reaching the containment pond. Yet another valve will be located at the discharge point from the main containment pond. In previous meetings and discussions, the City of Renton has asked that this valve remain in the normally open position so as not to modify the flow of surface water into the wetlands area located on the west side of the fenced area, also owned by Olympic Pipe Line Company. The Washington State Department of Ecology has indicated a preference, shared by Olympic Pipe Line Company, that the valve remain in the normally closed position to serve as yet another check against any petroleum product entering into the wetlands area. As with the other valves, should this valve be kept in the normally closed position, the area field specialist would visually inspect the containment pond and, if no product were present, the valve would be opened to allow discharge to the wetlands area. Storm water discharges will be logged as to date, time, and person opening the valve (if applicable). We shall rely on the guidance of the City of Renton to determine the normal operating position of this valve. 2. Explain in detail the following statement, which is from Section A.11 (page 3) of the environmental checklist, "Olympic Pipeline staff will be responsible for determining the most effective mode to operate the control valve, and for removing any contaminants that are trapped in the pond." The "mode of operation of the control valve"refers to the normal operating position of the discharge valve from the containment pond and it will be based on the recommendation of the City of Renton. As stated above, Olympic field specialists will follow the visual inspection plan outlined in the response to question number one in order to determine if the storm water will be discharged or removed for treatment/disposal. As a further check to ensure that discharged storm water meets water quality criteria, Olympic Pipe Line Company's proposal to the Washington State Department of Ecology included periodic sampling of the discharge water at Renton as well as other facilities. Ms. Elizabeth Higgins August 30, 2000 Page 3 3. Section B.1.e(page 4) of the environmental checklist includes a statement that soils on site will be temporarily removed and stockpiled, stockpiled material will be reinstalled, and stockpiled material will be hauled off site or wasted on site. a. Provide a soils analysis of the existing soils on site demonstrating that contaminated soils are not present. On August 29, 1999, three thousand three hundred sixty eight gallons of petroleum product was released at the Renton facility when an injection pump mechanical failure occurred. The release occurred in the area just north of the northeast corner of the 10,000-barrel utility tank earth berm, and pooled in the asphalt area between the earth berm and mechanic's shop. (Please see the site plan for additional information). The release was contained,free product was removed, and petroleum-contaminated soil was excavated. However, due to the presence of subsurface and surface facilities, not all of the impacted soil could be removed. Therefore petroleum-impacted soils are still present. A remediation system utilizing air sparging technology to treat both soil and groundwater, is currently in operation. However, it is possible that during excavation for the proposed project, some petroleum-impacted soil will be encountered. Olympic proposes that during construction, the soil will be excavated in lifts and stockpiled. A sample will be collected from each stockpile and tested for the presence of petroleum hydrocarbons. Soil that does not meet state standards will be transported to TPS Technologies for incineration at their Lakewood, Washington facility. Geo Engineers, Inc. will be on site to collect soil samples and coordinate testing. b. Provide a haul route plan and location for disposal of material that may be hauled off site. Contaminated soil will be hauled off site by TPS Technologies. The trucks will enter the northeast corner gate and will be loaded by the construction contractor. The truck will exit from the exit gate located on the south side of the facility, and will continue south on Lind Avenue Southwest to Southwest 41 S`Street to Highway 167 to Highway 512. The truck will follow Highway 512 to the TPS Technologies facility located at 2800 104th Street Court South, Lakewood, Washington, 98499. Ms. Elizabeth Higgins August 30, 2000 Page 4 4. Provide a list of other agencies (other than the City of Renton) that may provide oversight of this project. The Washington State Department of Ecology will also provide oversight to this project. The proposed work at Renton Station is part of the Facility Storm Water Management System proposal for the installation of containment systems at all of Olympic's stations and delivery facilities. This report was officially submitted to the Washington State Department of Ecology in June 2000. The Renton portion of this project was scheduled to be completed by November 2000 or within 6 months of receipt of all permits. Olympic appreciates the assistance of the City of Renton for the prompt review of this permit application. Olympic hopes to meet our construction timeline goals of completing this project by November 2000. 5. Provide information, including other jurisdictions, compliance, and scheduling requirements, on any corrective actions currently underway regarding fuel spills or soil contamination. The remediation and air sparging system due to the release on August 29, 1999 is still in operation. Olympic is coordinating with the Washington State Department of Ecology on continued monitoring and remediation of the release site. Please contact Ms. Elfin Storey at the Northwest Regional Office in Bellevue, Washington. Mr. Harold Brende was the Berger/ABAM project manager working on the design of this project. Mr. Brende is no longer with Berger/ABAM. Please address future correspondence to me and to Mr. Dwain Zahn at Berger/ABAM, 33301 Ninth Avenue South, Federal Way, Washington, 98003-6395. Thank you for your assistance with this project. Please be assured that Olympic Pipe Line Company is working with the Washington State Department of Ecology to develop a proactive solution to both prevention and containment of petroleum product releases at all of our facilities. If you have any questions please call me at (425) 227-5213. Sincerely, .m.k< Rose Aim Lopez Engineer-Olympic Pipe Line Company cc: Michael Condon CITX 3F RENTON Planning/Building/Public Works Department ` ✓ Gregg Zimmerman P.E.,Administrator Jesse Tanner,Mayor August 2, 2000 Ms. Rose Ann Lopez Olympic Pipeline Company 2319 Lind Avenue SW Renton,WA 98055 Re: Renton Station Drainage Improvements, LUA00-068,ECF,V, SA-H-Hold Letter Dear Ms.Lopez The City of Renton Environmental Review Committee(ERC)met yesterday to discuss the proposed drainage improvements project at Olympic Pipeline's Renton Station. The ERC was unable to make a determination on the project's compliance with the State Environmental Policy Act(SEPA). They found that additional information will be required before they can make a determination. For this reason, a"hold" has been placed on the project until the requested information has been submitted and deemed complete by staff. Specifically,the ERC requested the following: 1. Explain, in a narrative, how the proposed valve system is intended to function(operations and maintenance). 2. Explain in detail the following statement,which is from Section A.11 (page 3) of the environmental checklist, "Olympic Pipeline staff will be responsible for determining the most effective mode to operate the control valve, and for removing any contaminants that are trapped in the pond." 3. Section B.1.e (page 4) of the environmental checklist includes a statement that soils on site will be temporarily removed and stockpiled, stockpiled material will be reinstalled, and stockpiled material will be hauled off site or wasted on site. a. Provide a soils analysis of the existing soils on site demonstrating that contaminated soils are not present. b. Provide a haul route plan and location for disposal of material that may be hauled off site. 4. Provide a list of other agencies (other than the City of Renton)that may provide oversight of this project. 5. Provide information, including other jurisdictions, compliance, and scheduling requirements, on any corrective actions currently underway regarding fuel spills or soil contamination. This hold on the application will necessitate scheduling another ERC meeting as well as rescheduling the Hearing Examiner public meeting on this project. Please contact me at 425-430-7382, if you have any questions. Sincerely Elizabeth Higgins,AICP Senior Planner 1055 South Grady Way-Renton, Washington 98055 ®This paper contains 50%recycled material,20%post consumer REPORT City of Renton Department of Planning/Building/Public Works DECISION ENVIRONMENTAL REVIEW DECISION DATE: August 1, 2000 Project Name: OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT Applicant: Rose Ann Lopez/Olympic Pipeline Company 2319 Lind Avenue SW Renton, WA 98055 Owner: Olympic Pipeline Company File Number: LUA00-068, SA-A, ECF Planner: Elizabeth Higgins Project Summary: The Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. The proposed project would require upgrade and reconstruction of an existing drainage pond. This project would require work, including construction of permanent features, in the 50' buffer of an existing Category 2 wetland. Therefore, a Variance from the Critical Areas Ordinance and wetland regulations has been requested by the applicant. Project Location: 2319 Lind Avenue SW; Renton Exist. Bldg. Area SF: N/A Proposed N/A Area SF: Site Area: 11.77 acres (project area 6.8 acres +/-) Total Building N/A Area SF: ,� sY -.... Awe. fn ----r--- - SW 19 S"-1=1I —tr I I r ti---• CN t y' Olympic Pipeline 1 • • Project Site;l ._ ° ' Y 1 � -. , i �{1F• ,+ri ••' �i!�} w ' --+�•"'�` OLYMPICPIPELINE COMPANY RENTON STATION / DRAINAGE IMPROVEMENT PROJECT SWth i- — —^' ' 4 Eeee,glaw a useyaeavbaeJ.• n- 30•. =, 7,; InAatrial ercsa-a City of Renton PB/PWDepartm. Environmental Review Committee Staff Report OLYMPIC PIPELINE RENTON STATIONDRAINAGE IMPROVEMENT LUA00-068,SA H,ECF, V REPORT AND DECISION OF AUGUST 1,2000 Page2 of8 PART ONE: PROJECT DESCRIPTION/BACKGROUND Olympic Pipeline Company has requested approval of its proposed Renton Station Drainage Improvement project. Renton Station is the location of an Olympic Pipeline Company facility that handles transmission pipelines, pumps, valves, and a storage tank used for transport of refined petroleum products from Anacortes, Washington. Renton Station also has administrative and operations buildings on the property. The facilities used for the transport of petroleum products are subject to leaks and spills of the products. The intent of the proposed project would be to segregate runoff originating in the north part of the property, that is subject to contamination from spills and leakage of petroleum products, and route that runoff to an on-site containment pond. The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas, including Category 2 wetlands, adjacent to the site. The proposed project includes construction of a drainage containment pond, new drainage pipelines, several concrete spill containment pads, an impermeable liner within an existing spill containment area, and a subsurface impermeable liner within certain unpaved (gravel) areas of the site. This project would require work, including installation of new storm drainage features, in the 50' buffer of an existing Category 2 wetland located to the west and at the north part of the site. The proposed work is not included in the "Allowed and Regulated Activities"within wetland buffers (RMC 4-3-110K). A Variance has been requested by the applicant so that proposed work within the buffer could commence. The work requiring the Variance to allow construction within the 50'wetland buffer includes removal of approximately 12" of topsoil, installation of a subsurface, impermeable liner, replacement of soil with gravel, and the increase in size of an existing embankment around a drainage pond. A concrete spill containment pad would also be partially (approximately one-half) located in the 50'wetland buffer. The proposed upgrade and reconstruction of the new pond would increase the "footprint" of the existing pond (37,800 square feet) to 39,900 square feet. The property is in an Industrial - Heavy (IH) Zone. The existing use, "large utility" is a conditional use, which is typically permitted following Hearing Examiner review, in this zone. While expansion of an existing conditional use would normally require Hearing Examiner approval, the proposed project has been deemed a "technological upgrade", rather than an expansion. Therefore, the Hearing Examiner will not be asked to consider the Conditional Use Permit. The project site is located in the Employment Area Valley Planning Area (Comprehensive Plan). All development within the Employment Area Valley Planning Area typically requires Site Plan Review. Because the project area, at approximately six (6) acres, is less than ten (10) acres in size, the site plan would typically be reviewed administratively, except that, for this project, a Variance is required. Therefore, the Hearing Examiner will be asked to consider and approve the site plan, as well as the Variance request. The proposed work would commence as soon as approvals are received from the City of Renton, and would be scheduled for completion in Autumn 2000. ercrpt.doc City of Renton PB/PWDepartment Env.; Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA H,ECF, V REPORT AND DECISION OF AUGUST I,2000 Page3 of 8 PART TWO: ENVIRONMENTAL REVIEW 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. A. Environmental Impacts The Proposal was circulated and reviewed by various City departments and divisions to determine whether the applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development. Staff reviewers have identified that the proposal is likely to have the following probable impacts: 1. Earth Impacts: The Olympic Pipeline Company facility is built on approximately ten feet of fill (silty sand with gravel) overlying alluvial sediments. Filling took place approximately twenty years ago. Approximately 100 cubic yards of new fill would be imported to create an embankment for a drainage containment pond. Approximately one foot of existing soil from the north part of the site will be temporarily removed and stockpiled on site while an impermeable liner is installed in the area. Approximately 900 cubic yards of sand and drain rock will be brought on site as initial backfill over the liner, then approximately 900 cubic yards of stockpiled material will reinstalled and the remaining 900 cubic yards of stockpiled material will be hauled off site or wasted on site.. Soil erosion could result during the construction phase of the project, therefore a Temporary Erosion and Sedimentation Control Plan will be required prior to receiving a construction permit. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 2. Air Impacts: Development of the site, as proposed, would not result in any significant long-term impacts to existing air quality. The primary impacts from development of the proposed project are related to construction activities. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 3. Water Impacts:The applicant has stated that the developed portion of the property is not in a floodplain, but according to FEMA maps, the property lies within the 100-year floodplain, with a base elevation at this location of 16'. This project would require work in the buffer of an existing wetland. Therefore, a Variance from the Critical Areas Ordinance has been requested by the applicant. ercrpt.doc a City of Renton PB/PW Departm — Environmental Review Committee Staff Report OLYMPICPIPELINERENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA H,ECF, V REPORT AND DECISION OF AUGUST 1,2000 Page4 of8 Staff recommends that mitigation for wetland buffer impacts be required for this project. A Wetland Study, by Berger/ABAM Engineers, Inc., dated May 19, 2000, was submitted with the application. This study verifies a description by Jones and Stokes of the wetland complex on the property, "High quality habitat; one of the highest quality wetlands in the City' (Critical Areas Inventory, dated 1991). Type 2 wetlands are located to the west and north of the developed portion of site, within the property boundaries. The 50'wetland buffer extends onto the developed portion of the site. Existing portions of the Olympic Pipeline facility are located within the 50' wetland buffer. The proposed project would require construction and placement of permanent structures within the 50' wetland buffer. If the variance request that would allow this work is approved, a wetland mitigation plan demonstrating replacement of wetland buffer areas, that would be lost due to construction of this project, in ratios determined by the Renton Municipal Code would be required. Replacement wetland buffer area could be located on non-developed portion of Olympic Pipeline property. The west half of the property is located within the Springbrook Creek Conservancy Environment of the City of Renton Shoreline Master Program. The project area for work proposed by this land use application is located on the east portion of the property, more than 200'from Springbrook Creek(the creek is located approximately 0.5 mile from the developed portion of the property). While work is proposed to occur within the wetland buffer, no work has been proposed within the "shoreline wetland"that is adjacent to the project area, therefore the proposed project is not subject to Shoreline Master Program requirements. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 4. Stormwater Impacts: Of the 11.77 acre site, approximately one-half, the east portion, has been developed. The west, undeveloped, portion includes a Category 2 wetland and, on the west property boundary, Springbrook Creek. The southeast quarter of the site has been developed with administrative and operation buildings, crushed rock parking areas, and asphalt-paved driveways and parking areas. The northeast quarter has pipelines, pumps, and hydraulic equipment designed to handle the refined petroleum products and other materials. Runoff from the southeast portion is collected in small diameter pipes that are routed to a drainage pipeline along Lind Avenue SW. The Lind Avenue pipeline runs northward approximately 100 yards where it discharges into an unnamed drainage channel that flows westward to Springbrook Creek. Some of the runoff from the southeast part of the site flows overland westward to an existing drainage pond. Runoff from the northeast portion of the site is generally in the form of surface flow, some of which is collected into small pipelines running westward to a small drainage pond at the northwest corner of the site. Both of the storage ponds have small capacity and no outlet control. The following stormwater improvements are proposed by the applicant: ercrpt.doc City of Renton PB/PWDepartment - En, mental Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF AUGUST 1,2000 Page5 of8 • Create two separate drainage areas by means of a defined grade break, by constructing a low asphalt ridge, to segregate surface water runoff that originates from the north part of the site from the runoff that originates in the south part of the site. In the newly created "north drainage area" the following is proposed: • Install drain pipes and catch basins; route the pipes to an oil-water separator, and then to a new stormwater containment pond located on the west side of the site (and the location of an existing pond). • Install concrete spill containment pads that are connected to the drainage pipeline. One pad will be used for parking tanker trucks during the loading of petroleum products. Another pad will be used for parking tanker trucks during the unloading of chemicals that are injected into the petroleum pipelines. Approximately one-half of one of the above concrete pads will be located within the 50' wetland buffer. Approximately 3200 sf of new impervious surface would be created as a result of these new containment pads. • Install miscellaneous small containment pads at pumps, scraper, and launcher/receiver doors. • Install valve on drain line from each containment pad. The valves will normally be in a closed position to prevent any spilled material from entering the drainage system. Upon inspection by Olympic Pipeline operations staff to ensure that no contaminants are in the containment pads, the valves.will be periodically opened to release captured rain water to the drainage system. • Install a new impermeable liner inside the existing spill containment area for the existing 10,000-barrel steel tank. The containment area is created by an earth embankment. The liner is intended to prevent spilled or leaked substances from entering into subsurface soils. The interior of the containment area will be connected to the new drainage system via a pipeline. A valve on the pipeline will normally be in a closed position. The valve will be opened periodically to release captured rain water. • Install a subsurface impermeable liner in other areas of the north drainage area to prevent contaminants from seeping into the ground. • Reconfigure a stormwater containment pond,.located on the west side of the project site, into which runoff from the north drainage area would be routed. The earth embankment of the existing pond, a portion of which lies within the 50' wetland-buffer, will be increased in size. The existing pond has a small storage volume because there is no outlet control. The intent of the new pond is to provide outlet control and a larger storage volume to capture spilled material and contaminated runoff water; the pond is not intended to serve as a stormwater detention facility to reduce peak flow discharge rates. The pond will include an impermeable liner, a low-level outlet pipe with a valve, and a high-level overflow pipe. Pond discharge will be westward into a vegetated area, a Category 2 wetland and buffer, at the same location where the existing pond discharges. The containment pond can be operated with the valve in either the normally open or normally closed position. If operated in the normally closed position, the pond ercrpt.doc City ofRenton PB/PWDepartmr- a Environmental Review Committee Staff Report OLYMPICPIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF AUGUST I,2000 Page6of8 will gradually fill with runoff water. A some water elevation before the water level reaches the overflow elevation, Olympic Pipeline staff will check for contaminants, and will then open the valve if there is no contamination. If the pond is operated with the valve normally open;runoff water will pass freely through the pond with no significant increase in water elevation. Operations staff will close the valve if a leak or spill occurs to prevent contaminants and runoff from being released. Olympic Pipeline staff will be responsible for determining the most effective mode to operated the control valve, and for removing any contaminants that are trapped in the pond. In the"south drainage area"the following is proposed: • Install additional drain pipes and catch basins that will tie into an existing drain pipe in the southeast corner of the site. The existing drain pip discharges into a catch basin on the storm drain pipeline in Lind Avenue SW. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 5. Transportation Impacts: The project site is located on the west side of Lind Avenue SW, north of SW 27th Street. The existing access, located at the southeast corner of the project site, would be used during construction. There would be no increase in traffic due to the proposed project. No traffic mitigation would be required. Approval of a Haul Route Plan is required prior to receiving construction permits. Mitigation Measures: No mitigation is deemed necessary. Policy Nexus: N/A 6. Vegetation Impacts: No trees are proposed to be removed. Development standards for the IH Zone require a minimum 15-foot landscape width along non-arterial streets. This landscape standard would apply along the site frontage of Lind Avenue SW. Currently, extensive mature landscaping exists along Lind Avenue SW No additional landscaping will be required as a part of this application. Wetland vegetation within the wetland buffer area will be disturbed, as will vegetation located where approximately 12" of earth will be removed on the project site. Staff recommends that a wetland buffer restoration plan be submitted prior to issuance of a site preparation permit. Wetland plants suitable for the conditions on site, shall be specified on the plan and planted following completion of construction. All wetland areas and wetland buffers that are disturbed during construction shall be restored, with the exception of areas where the impermeable liner would be potentially damaged by root growth. Mitigation Measures: None required. Policy Nexus: N/A ercrpt.doc City of Renton PB/PWDepartment E, ';mental Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF AUGUST I,2000 Page7of8 B. Recommendation Based on analysis of probable impacts from the proposal, staff recommend that the Responsible Officials make the following Environmental Determination: ko DETERMINATION OF DETERMINATION OF NON-SIGNIFICANCE NON-SIGNIFICANCE-MITIGATED. Issue DNS with 14 day Appeal Period. Issue DNS-M with 14 day Comment and A eal Period. Issue DNS-M with a Concurrent 14 day Appeal Period. C. Mitigation Measures No mitigation measures are recommended. 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. Fire Prevention: 1. Provide detailed information on the spill containment and spill notification alarms or detection. 2. Separate plans and permits are required for changes to any fuel piping systems.. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. Surface Water Utility: 1. Show drainage basin delineation for existing and proposed site conditions. 2. Clearly show land use areas and quantities for existing conditions. This should include soil types and assumed land cover. 3. Demonstrate how the runoff coefficients and time of concentrations were determined. Show calculations with assumptions and references. 4. Show profile of storm drain system: Include all utility crossings on the profile. 5. Label oil/water separator on plans and include a detail of structure. 6. Clarify how the runoff that infiltrates through the sand layer above the impervious liner is conveyed to the storm system. Clarify if there is an under drain system that serves this function. 7. An erosion control plan will be required prior to obtaining construction permits. Development/Planning: 1. The proposed project site is located in the Industrial—Heavy (IH)Zone. 2. A construction permit will be required prior to initiation of work. 3. A wetland buffer restoration plan will be required prior to issuance of the required construction permit. Replacement buffer area can be located on non-developed portion of Olympic Pipeline property. ercrpt.doc City ofRenton PB/PWDeparting, Environmental Review Committee Staff Report OLYMPIC PIPELINE RENTON STATION DRAINAGE IMPROVEMENT LUA00-068,SA-H,ECF, V REPORT AND DECISION OF AUGUST I,2000 Page8 of 8 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 Appeal Process: Appeals of the environmental determination must be filed in writing on or before 5:00 PM August 21, 2000. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, 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)-430-6510. ercrpt.doc • • • • • h. r - I - . . '3: ets -" "11:: Z1----------1• 01 vt T v� Cr'4 1 Cc") Q) _,,,.„-s,c) ...e .7 ,, . 0' V ,o 0.- s#46,•,,,, . • l •410,4 w. • , , o i • * • Aiiiiiii PIPE LINE 4 • . N� COMPANY : j' �I,''- � E, ® � C El 2C HO FLOOD ERA:.: f Ili•tt I 1 I'^ ti ((1 CITY OF RENTON DATA ,1 I1 1-1-.1 itl III .C1f`" -'`V I'I ; II... UNNAMEDDRAINAGEGUNNELVjL 1[-. �I �'I 9' t `tA�:.: f l` I i.o PROJECT CIETLAN )/ 1,Ft- - - I 1 fr.:f4I __L.'I ,,, '\.F� i .,PIL __ s11.Dr RENTCN K.____ L g..L.v,1-"Al CYYErLANO ) ' I I t�T i__ L -, / O i.; I � I DRAWING INDEX FENCE.PROJECT SITE LLD :BOUNDARY AND LIMB � I 'irk.. � v N DWG No, DRAWING TITLE SHT No. AUTOCAD FILE No. OF CONS7RUC710N AREA�I`�r ripaitm1111111112i111ranarl � n GENERAL DRAWINGS WETLAND BOUNDARY y L i�� � [ I T-01 TITLE SHEET. VICINITY MAP, DRAWING LIST B. {{{��� r j,� G-0I GENERAL NOTES, EROSION CONTROL NOTES, TECHNICAL SPECS A . _.___ .o;1 A - LIF ; T C-01 SITE PLAN APPROX 100 YEAR Y .- I,, C-02 DETAIL SHEET FLOOD PWN BOUNDARY J- b : '�, I C-03 STRUT RALED ` BOJ.SD -_ a�` ett_ m y u I1 < . S-0I STRUCTURAL DETAILS ara�B i haimigiAiixl:�1m1 egiu 1 N • VICINITY MAP SITE MAP • AORIZONTAL DATUM: ENGINEER OLYMPIC PIPE LINE COMPANY SJ UM...Awe SW. • A^ 33301 BTH AVENUE SOUTH VERTICAL 0 UYh DRAFTER RwAwn., Apfw FEDERAL WAY.WASHINGTON NOTE DOORS: GM[CR[KWD TITLE SHEET BERGER/AR 000 AM 0}3000 RENTON STATION FAR:(200M01.2250 NO. RMSION DT CHECKED APPROVED DRUM) D Y.P. DRAINAGE IMPBOO G N VENENT PROJECTSor nAs comma Awo Au.PwownA sn.0 AFC NO'S:OM RI COMO OR IMO APPROVED DATE XI- IDRAw:NO NO. la REV,x� REFERENCE oRAwIHGS Ann Axr nor,npxrn:'v :nu noun n r,nu..or;yrmown In nor unnrR ox nrwwo NONE T-1 1 0 • • VALVES SPILL CONTAINMENT DRIJM5 SEE __ (NORMALLY CLOSED) DETAIL(). TYP 8 LOCATIONS /i ---- �`_ z-WETIAND BOUNDARY i BURIED IMPERVIOUS UNER .•• / 2 07a1 4'PERFORATED DRAIN PIPE PROPERTY UNE A �� ® � I r / ) A I,A 18.50� I / /A'/I �� / , /� / 1 j • "CONCRET�PAD AROUND P• S E)1B.SD !/ //��^jf;I _/ _ . • • CB 10T(S)18.50 w I NI ///�/(ryM / CB 1 4 IE OUT(SW)19.00 (LE ( I �� ,¢1C 2000 �"' / �� / •Ci/ / y��9094a/ •� I 1 • / 3197a1/ r / • N CONTIMPERMAINMENT AREt j j V/� a ;/ N _000 ROTS CA ACNY�' • •/,/ r ca 2 1-1 GAiIILINL/UILSIL I%Jlk I ate/`, n /H RIM EL.22.0 Z // ,...0', IE IN(NE)18.49 EXSTING SPILL CONTAINMENT BERM —i- / i�/ I o j - -/ IE OUT(SW)18.49 d / i •��, J E r NORTH DRAINAGE AREA 0\ • ( I ��/�i—� �_ _ �5r -- �/� ��__ C It�����v AND REPLACEMENT' PAVEMENT ` 50'WETLAND BUFFERI DRAINAGE BOUNDARY RIM EL 22.0 • ,CB 3 p 1y j ( v". . ,,, 'Ft IFt SOUTH IE IN NE)17.82 GRADE SEPARATION BERM Z / GRAVEL WITH UNER WETLAND BOUNDARY I I/ 21. I 0\\ DRAINAGEIE IN(N) 17.85 _ �jIK(T(1S. ` AREA IE OUT(SW)17.65 l( :I ..[1 / WEIR —— IE WT• /�/,• •..• 5 a r,M L J • / - - - '6 LF 10 PV FT RI EL 21.6 REPLACE ASPHALT Cn 29 LF 10'PVC S,•.005 FT//FT if S ,005 FT/ IE IN(N)17.61 'Kt NEW EMBANKMENT FOR I/ Ill lrl IE IN(NE)16.12 • I I Z.2 i 2i STORMWATER RUNOFF __ 012 OUT(W)16.12 •• • III CONTAINMENT POND I (j� CB 7 ���0 I /�1'/�------ T RIM EL 21.5 •��• • �/i � fy/�,�J w�1 E' IE 15.y0 • ••• Q I O!110 S�/(�/I. 1) IE OUT(S)19.8 y • .. •• • i` S1/ ` 1 J . MH 2 /\y4"t- �� /�� POND M NTENANCEI . + ,"At�GESS RAMP EXISTING CHAIN LINK y ..; • FENCE. PROJECT SITE •I \ l •. • I I I r I •M 1' •BOUNDARY AND UNIT -' 5 F 8'PVC OF CONSTRUCTION AREA(—,,: II ,, , ,'` S•.0044FT T I.--�^� CB 8 .' CBRIM EL 22.0 59 • RIM EL.21.5 '(-A 1') BUFFFR I IE IN(N)19.12 I. a IE OUT(E)19.12 , , I'I IE O IE UT(N)17.9t 17.90 ' TEMPORARY EROSION CONTROL: \ FILTER FABRIC FENCE _ • /•,"I ' ,II. AND/OR HAY BALES ` M\' - � , ALONG WEST BOUNDARY ' OF PROJECT SITE \• `,\,' ,1 \ \� .. _ • _ .- -- -- . -• - •• . . ..._ \ • RIGHT OF WAY - .lye; ... 1,1', T. PROPERTY UNE ( • I. ' M.,,,.,L., �. SW 23rd R/W1 . . • 1 30 3Ga — feel 60 0 30 I • • HON1EOAIOL DATUM: ENGINEER • Opp/ OLYMPIC PIPE LINE COMPANY w --fib► 25I9 Lind Arena.S.M. . A ) 311019TH AVENUE SOUTH VERTICAL%TTi DRAFTER - Renton,Wo�tiAPew FEDERAL WAY.WASHINGTON NOT[BOOKS: CX[CR ND SITE PLAN BERGER/ABAM a RENTON STATION I VOICE:(208NOT•2000 CxH CRC DRAINAGE IMPROVEMENT PROJECT FAX:(2081431-2250 NO. REVISION SIT CHECKED APPROVED • APPROVED DATE Y.P. STA 10 Y.P. STA �•' MO AUS O OCE.,RT Ica,a nc O IRO 341024 F IS W OY uNEno r�..T swu LIE xo's:NOT BF 034420 .n,Ir 6wrlNo H2'— of I AEv.owl: Awn/KA E DRAWINGS ANBCOMM TIPREOFF(FARR.OR c�OLLIT)SMALL BE.m,mmaoro THE COMA o„ocIC pRE1e1Owm. 1'=30' I C-1 I 0 444434 AM r 3 Om OA.. ,R 4*.oWnlL09IEAOR.1,-H..E INN AI • . • • . . • 2 YR. FLOOD ELEVATION .• APPROX. EL.. 130 PER. . • . . - • - - . . • CITY OF RENTON DATA • b P41 in < ---\ E:VETLAN I:) P/L7 UNNAMED DRAINAGE CHANNEL >.) < - - - - < --1- - I- a_ --, I — 911.071,,— •_2------.. ..L.—e—__:=_-. ._. -- _—__-.--1— • — • —I ,-/ / f/ -- 113 APPROX. 100 YEAR •— tl T7 1 a v• _ rx . FLOOD PLAIN BOUNDARY (-_ ( ) 1 i co 4 .../V!TLAN11::D I 0 r 1 in /I x to li EXISTING CHAIN LINK I •- .ND FENCE. PROJECT SITE _ I 1., Lf7" BOUNDARY AND LIMIT I 1 11) LE ogoc,,p,vwfsrlec. - 11.1 :V OF CONSTRUCTION AREA -- II... ,j, • WETLAND BOUNDARY \•,, , I ---- \\ 50 . ' . 1 .. . : ' . . .. . • : . . L8: x X I — — T-•1 1`,':. .77.77-'5 ifoil ...7-.47.77,..7- •...;...‘L__________I__I t - ...„:„.„... loo o loo . FLOOD PLAIN MAP 4 scale f( 2 YR: FLOOD ELEVATION • . APPROX. EL. 13.0 PER CITY OF RENTON DATA 0 N • i UNNAMED DRAINAGE CHANNEL xo f < ./ - - - < IT - - - L WETLAND �, 0 - P/L _ _ 911.07' - �- X —X --T X+� - / 1 .. , t::3 APPROX. 100 YEAR 1..-I � ,--- : L . r_x_, FLOOD PLAIN BOUNDARY I x I X EN 4 WETLAND f 0 in /i x __ . L EXISTING CHAIN LINK In j' r o1 Cr? i FENCE. PROJECT SITE /'X — I BOUNDARY AND LIMIT I 11 Eir / OF CONSTRUCTION AREA I I ggrf f IVOfAI£BU!(pNG IX _I . WETLAND BOUNDARY \4.f IC. ;50 ) . 8 \\\,/- A41( a a 1 ,,, ! i \� / xc3(XXX o I �\� 903.30 x - - I H I I I 100 0 100 FIGURE 2 scale 1 // i\ •-q\y Il itt i ��G1 1 �` it � 1� ...••z. ! � i I 1 4. _�_*''1="�i -- vam1,. -` ✓'CC'.\�I;- i°0 IIII li • — — — — i 1H— ° f 1N. 0 ,W • • • _ -_- -. ss -- m -r_,�--- 84 Ave. S. i ����``� \=:,� •:' t o • t' 1 V V/ y, , rF T\ S —}11 • ; -;:;.' _ I ,,I II' `I L.I t.`t; ‘ .11; ^.S+s I It •'d * _ I nti { I ��N li�'.•• ,:I;1'I �`''ta�\If.l EegilEie� z:.,,.•'; n `� 0 r o f • , \„I I I t; l� i l i!P,Ilue..�ii, }g,,,,, :ei i a?faaon+a el .a r 6. 41 • I —— \ f S • 3 O a '��\� o '�1' t�: { Ave- 1111 1 ,\ ��_ I�. ` } t ccylu�� ;-`,_g. 1W w ,- �u- (1 ' Lind v . S al��e ,y tin�lBs ol�� • ���e - -,, i——�! - Is: I �,A9• ! ...t' `! �a 11■11 1111 1 'iiEiiiii:i .1 ,:; • , �iRi��49l�i►�� I _ ' "_",l 1\ ® ' I I{� 1 a t I' .a , i 11 IL°IIYII ►'� KM +A S+� \ . qtja�y �6iq {,.. St'v. 1 4 1; • I ! I _�, j; I:,,r.• � ,, dn� ao��Eiiini >t.. "�,� :`.s .� C= C t i 7nA 1\ p 1 I 1 I. t�i �� 111 „��4 I ;��. ;: :1 <' .tltl n • !`, F ,- , - ! lme ii1119 ' in111111.1■i _ _ ;_ •, • um iil�ii . 1� .� : t 11110 L°illsr• _ ur:v. �3 :cu-a 1 . � '�,blw�lili! _ 01; East ValleyHwyMy ' ' . ^ — � � .°11u - i • :ill 4,‘ . otki.,, , roisci , -7--__Y ellillsr P.Fa z 0 !; ii!!! LLr1 rIi..ll SJ� , ga4•.\ + x � � h cn • o -aD-1 :-.444; �+ - 1�dLA6� aFr"^��p � ',�P'P- p I. •" ' ' � bipI, mQ ' - 4 • Am � . r x; � + I�!*day i ° J . .,gi .�, iwadi- < • Q albl.�� b� ` 4"�+�' g'°{lam ,_� I,! 1 „�44N;... b'110 ` �' ; o' 1% ■t ,414004....t4 robot t 1 r r a, Ii --a'. . -I /- .!I .,1 r c n r, 1{ I = lupic --- . 7 Lv . 0 .. b6-OG sul - p e . gin: exit on State,oficials s . 3,300 gallons; company says less BY ARTHUR SANTANA AND BRIER DUDLEY Seattle Times staff reporters . Approximately 3,300 gallons of gasoline and higher-octane aviation fuel spilled on the ground last night at an Olympic Pipe Line Co. station in Renton, state officials said. • .,The spill was caused after a me- chanical problem with a Pump,Olym- picj officials said. They; however, dispute the amount that was spilled. Initial reports indicated that be- tween 200 to 500 gallons had spilled after part of a fuel transfer pump ruptured about 10:30 p.m. at the company facility at 2319 Lind Ave. S.W. By 2 a.m. today, a crew from a cleanup company was able to re- trieve 3,000 gallons.The rest either evaporated or soaked into the • ground, said Renton Fire. Depart- ment spokesman Lt. Larry Welch. Company spokeswoman Maggie Brown said some of the liquid recov- ered may have been rainwater and it's unclear how much fuel actually spilled. . No injuries were reported,and it was not immediately.known what kind of environmental damage the spill caused.:. ' "We hope:there will be none," Brown said."But anytime you have it going into the soil, you're going to have some potential impact.". A crew of eight firefighters stayed at the,site through the night in case PLEASE SEE Pipeline ON A 11 .POytnpic4 . Line-spilis -thousands o gallons. :„„.1..„,..f,.3, bffrtel. - . .. at: Renton. aci . .i 'PIP ... . , . . . . . ELINE' :. _ Olym pic Pipe Line spill ..6pNTINUED FROM PAGE. 1 ' .•. • •` Gasoline and aviation fuel spilled at ttne fu•el ignited: the Lind Avenue station last night. p. The pipeline is the same one that -..- ' �' . , -":> :.:::.. . . !attired June 10 in Bellingham,kill- �' �J . }••-T- "la,�' w : . 4lig.threepeople: • ...... �1= • • '= The state Ecology Department • ` `r t ff '': 6 - rV ill overseef `_K!i. the cleanup effort in � j �` Fop._ yesterday's spill, by a private com-' -- "�!; _' ;Pany, West Pac Environmental, - 1 �' =�.: 7"�yer • :::'.:.:: R.. iWelch said: cY`�AYa Renton .' ,.„:..'Because the spill didn't reach ....,r,•.i1;;. ::_ .' ,waterways,' it's unlikely 'that the %,: ;coiiipany will be penalized by the �!t :': ';'' ::.: ::_.5w':::: state, although the rules are being :- ..SAY 23RD ST' . . CET D ::;;; :reconsidered in light of the:Belling- :1.,':; : 2 • • ' .. :;:`® •.. ham accident.The state is investigat-. •. ::' ; 'w:. :m a ge Renton spill but isn't likely to �:`:;. w:• •:'� ;' - ,nzr� ;:; ;do.much an sis: • -�a' _analysis,. ,:,:•,,,..,„ ;,W.Itwentstraighttoground,justto - , ' , THE,•SEATTLE;TIM•ES , "di t," said Dale Davis of the DOE's Last month,Brown defended the • . state spill assessment section.., Nat-- ural• resource damage .assessment . company's record; saying the:.spills • • were small and that Olympic recov- only occurs when we go to water."':- ers 60•percent of what is spilled.The tuz Welch said.there.is.going to be ' • m company'had also emphasized its some soil removal and remediation. safetyrecord earlier while it was still ''they'll scoop that contaminated dirt ..pursing a cross-Cascades pipeline to but of there and then send it off to aPasco. hazardous dump site." "We moved 4.9 billion gallons last. Original reports were,that a few y ar and spilled 126,000," she said. hundred gallons had spilled,but after Most of the spills reported to the ' West Pac's 3,000-gallon tanker filled ..• with spilled fuel,,officials realized the:. federal Office of Pipeline Safety since • spill was'greater and thought up to 1985 have occurred at Olympic facili • 5,000 gallons had leaked. •: ties:such'•as....the. Renton•transfer By midmorning,state and Renton' s S on,pump stations and tank facili- fir'e'officials were estimating the spill . at,-3,300 gallons,.said DOE spokes- .: ., Olympic is a;partnership'`of oil.. man Ro >: ,_.' ::. ;': . companies Shell, Arco;and-Texaco • n Langley. "=The 3,000 gallons recovered from and_.shipper GATX'. :''' : the:ground will likely be returned to a:.•.' .• liotding tank:andlater re-injected into... : Arthur Santana s phone message : . Y number is 206-515-5684.His a-mail •tlie'pipeline in:diluted-_state;where .' : , it'will be mixed with':clean fuels, address is:asantana@seattletimes.com• Welch said. :-' = ,.Brier,Dudleys phone.message number is. • 'The incident was the'44th signifi- 206-515;5687 His a-mail address is:. ' - cant spill for the 34-year-old pipeline; bdudley@se'ttletimes.com. . *filch has-now leaked about 826,000 1• '•' • - ' gallons of.'fuel on its route between Bellingham'and .Portland, according • Oldie state.Department•Of Ecology. L'+�Recentspills include the June.10. rupture that'leaked 277,000.gallons of gasolin_a:and killed three'in Bel - -. fiiigham, and an`80,000-gallon spill` near Renton discovered in-1986. .. \.'s;-, :. CITY OF RENTON Community Services Department I• • 0 Committed to Enriching Lives 0 MEMORANDUM DATE: July 24, 2000 TO: Elizabeth Higgins, P/B/PW, Developme t Services Div. FROM: Leslie Betlach, Parks Direct SUBJECT: Renton Station Drainage (LUA00-068, SA-H, ERC, V) This memo is in response to your 7/20/00 memorandum regarding the required variance from the Critical Areas Ordinance in order to do the proposed work within a 50-foot wetland buffer. My 6/8/00 comments are still applicable—there are no further impacts to Parks and we have no other comments. 2000-131mb(Renton Station Drainage).doc . CITY OF RENTON Planning/Building/Public Works MEMORANDUM DATE: July 20, 2000 TO: Reviewing Departments FROM: Elizabeth Higgins x 7382 SUBJECT: Renton Station Drainage(LUA00-068, SA-H, ERC, V) During the course of the planning review it was determined that the above referenced project would require a variance from the Critical Areas Ordinance in order to do the proposed work within a 50 foot wetland buffer. Included herewith is the variance request from the applicant and the comments submitted previously from your department. Please submit additional comments, if necessary, by July 27,2000. Thank you very much. ..)4) did& CITY OF RENTON Planning/Building/Public Works MEMORANDUM on),OF RENTON DATE: July 20,2000 JUL 2 0 2000 TO: Reviewing Departments FROM: Elizabeth Higgins x 7382 ciuuL J+ tvG DIVISION SUBJECT: Renton Station Drainage (LUA00-068, SA-H, ERC, V) During the course of the planning review it was determined that the above referenced project would require a variance from the Critical Areas Ordinance in order to do the proposed work within a 50 foot wetland buffer. Included herewith is the variance request from the applicant and the comments submitted previously from your department. Please submit additional comments, if necessary, by July 27, 2000. Thank you very much. [a • CITY OF RENTON Planning/Building/Public Works MEMORANDUM - : DATE: July 20, 2000 TO: Reviewing Departments FROM: Elizabeth Higgins x 7382 SUBJECT: Renton Station Drainage (LUA00-068, SA-H, ERC, V) ' During the course of the planning review it was determined that the above referenced project would require a variance from the Critical Areas Ordinance in order to do the proposed work within a 50 foot wetland buffer. Included herewith is the variance request from the applicant and the comments submitted previously from your department. Please submit additional comments, if necessary, by July 27, 2000. Thank you very much. CIcedp food e:okome vvvi tte%J t/gti/ 5/06 DEVELOPMENT FLAIVfVlIVCa CITY OF RENT f JUL 2 5 2000 RECEIVED • J U L 2 U 2000 CITY OF RENTON Planning/Building/Public Works MEMORANDUM DATE: July 20, 2000 TO: Reviewing Departments FROM: Elizabeth Higgins x 7382 SUBJECT: Renton Station Drainage (LUA00-068, SA-H, ERC, V) During the course of the planning review it was determined that the above referenced project would require a variance from the Critical Areas Ordinance in order to do the proposed work within a 50 foot wetland buffer. Included herewith is the variance request from the applicant and the comments submitted previously from your department. Please submit additional comments, if necessary, by July 27, 2000. Thank you very much. N v �6)LA c_ f a—S zt-z.i L Pt_n/rvly rvc,_ r iiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii'€>:€:»>:<»>:»:»»:>: > >: > : :::: : On thecday of 2000 I deposited in the mails of the United States, a sealed envelope containing i a; 0 0 documents. This information was sent to: Name Representing 0 1M pic p Li to A.�o i 1" Sp itk ✓ rropeA7 lies Sl, ✓vO(A.vn-X( v3 iPropLa/r OLt)R -✓ X A c U Ira rail p1g ✓�,l S()o/ 1 AA rr O LvM riitI� Pr ,71 (.LcJYk_e, O5 (ro (o ()"K`A�1 Prof O1,Aie (Signature of Sender) STATE OF WASHINGTON ) SS COUNTY OF KING ) I certify that I.know or have satisfactory evidence that }q-n� -ee signed this instrument and acknowledged it to be his/her/their free- and voluntary act for the uses and purposes mentioned in the instrument. D A A EF aoo —7'27 00)4- NO R PUBLI Notary Public i nd for the State of Wah' gton STATE OF WASHINGTON Notary (Print ARILYN KAMOHEFF COMMISSION EXPIRES • JUNE 29,2003 My appointor nt• iro's: Project Nam : ‘31ti 1 .;(-)/kj Project Number: Liti/4_,_(9 0(0 17 NOTARY2.DOC I U�rtY , I • ,,t� Comments on the above application must be submitted In writing to Ms.Elizabeth Higgins,AICP,Senior Planner. !i rti c0 • - Development Services Division,1055 South Grady Way,Renton,WA 98055.by 5:00 PM on July 31,2000. If you have questions about this proposal,or wish to be made a party of record and receive additional notification by mail,contact the I NOTICE OF APPLICATION ,, planner.l Anyone��ubmits written comments will automatically become a party of record and will be notified of any • I AND PROPOSED DETERMINATION OF NON- CONTACT PERSON: ELazABETH HIOOINS,AICP (428)430.7792 SIGNIFICANCE-MITIGATED(DNS-M) PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION ' • ,1 ( Will ---- __i4Y" ".L. I DATE: July 20,2000 I . ^l I'll WEE •-r' . I LAIIDUSE NUMBER: LUA-0OO68,SA•H,ECF,V J1. ;:Rf� 4 1 9 I I . APPLICATION NAME: . RENTON STATION DRAINAGE IMPROVEMENTS n I . NC to--� 1 PROJECT DESCRIPTION: The applicant,apple Pipe Line Co.,has applied for an Administrative Site Plan ., I • I• .5s�Ul ti brt Irl' Review N ceder to Initiate Ice Renton Station Drainage Improvements Project. A • " r 11 p!ql +1 , a • Variance from the Onkel Areas Ordinance,to allow work within the fifty-foot(50') i I : a I I f'" buffer of e wetland, has also been requested. The project consists of N�r'R ',O1 liIr ''lr reconstruction of an existing drainage pond, construction of concrete spill 1 I i 11J I containment pads,and removal of approximately 12'of lopsen followed by r rt'�`,n� .r;i,S;ie 4! . installation o1•subsurface,hnpermeabte liner overlain by grovel,within a wetland w ® I '� ;fd1 :1 butler.•.. c� I.I SS .. . w��6i:-.._a.(.:. 2- ':CIF �. _ • ,,. PROJECT LOCATION: 2319 Land Avenue SW co D for 7 r7i' a ��r )i1i� f•t (t t Mln e u• OPTIONAL DETERMINATION OF NON-SIGNIFICANCE,MITIGATED(DNS,M):As the Lead Agency,the City of �; y O) •'�7 • • I•j „,t;z S p�M�r��Jl s ro .t:_:: sow ,1.1 zr.. .era.:'_n,. Roden has determined dust significant emdmnmantal Impacts ere unlikely to result from the proposed Project.Therefore, ` t /� �_:.I•=! s Nit:: as permitted under the RCW 43.21C.110,the City of Renton b using the Optional DNS(M)process to give notice that a h Q :• - ^! s comment b Relyperio to be blued.a no Corot pentode for the project end the proposed rash are Integrated Mto a single I ,t1A, 1f\. _i I - + •? e,r• :: fire 4 rev: .rT nor.; • cormicancerbd. tadThere(D5S7M).A o-day cep eMd follopedal wit the bathe Issuance of ice Threshold of Non- s Ca SW 19th R_' ,, '''' nF�,�.SIB r,Pf. Significance AOfipaled(DNSM).A 14dey appeal period wit follow the bsua(ce of the DNS-M. i s invoot-I,NN31s76'7., }- .: PEFWIT PPUCATIONDATE. May 302000 r"! +1 . •! _ r= i I QA oWPM re , ix NOTICE OF COMPLETE APPLICATION: July 20,2000 - , '�Il1�� DIT :Olympic Pipeline i,�CO _ y - m;'� oc APPLICANT: Olympic PipeLlneC,o. '.y` P/L . ICI irel -rum= §' :Ica_ =_{ `? . OWNER: Otympio Pipe Lha Co. ��:s® s F�, i mot•�1 Q- �j >. rh� Parrots/Review Requested: En*cninenW(SEPA)Review,Hearing Examiner Site Plan Review, - --- �_ Project Site' 'D,- Mt - 1 5'.c'4 Variance bore Critical Areas Ordinance BY )DCP:P v • I �1 f - C ��I L� ��ea �Ci o�e/I • _ RequestedStudies: Wetland Delineation and Report I / --1 C.�el,r? ='n�° r� -lo:pr�.„-% crr4i Irfr.. aj??oar•. I Location where application may - - -I {IJ -\\ a .,`Se •'be reviewed: Planning/Building/Public Works DMsion,Development Services i ,1�440. Department Sixtth Floor,1055 South Grady Way,Renton,WA 98055 , �i� 'e�'•°rPUBLICHEARING: PublichearingocheduiedforAugust29,2000,beforetheRenton = �I dA.4p>rp Heerh g Examiner In Renton Council Chambers.Hearings begin at 9:00 - - I . ' ® i' v.0.1 obgg1 ' AM on the 7thtoor of the Renton City Hall located at 1055 Grady Way _4.' w : (h '_� %T^"i©•�'I� ,`, `Jere I!c o'r:ntl • SW 30 Lm CONSISTENCY OVERVIEW: ' ',':' ' a • Land Use: Heavy Industrial(IH) • a(I. RENTONOITPIPELINECOMPANY • PSTATION ON FEnvironmentalEnvironmentalDocuments that z, ,r `1 OOR EYTNNAGE IMPROVEMENT PROJECT ' ,"Evaluate the Proposed Project State Environmental Policy Act(SEPA)Environmental Checklist,Welland r -/r Deeelbn and Report r•-Drainage Report ! .I: I S Wh /� Development Regulations Nau Sole 99l o;f Used For Project Mitgatton: Slate Environmental Policy Act(SEPA),Renton Municipal Code -� I I.,aw.a poled.sawvlm+ry- • ' Proposed Mitigation Measures: II _e r• _1. Follow the recommendations of the wetland btolegbt regarding Gass II wetlands and Neff associated buffers. ..NONCE OF PROPOSEWENVOt01REMALAPPl1CATION•• NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION to - CERTIFICATION • I, is ✓19-e ,(1),J5 ak u) , hereby certify that 5 copies of the above document were posted by-me in•• 8 . conspicuous places on or nearby • - •the described property on . J Z€./ Z oil - . • Signed: _ar.,_,Ze /3,,a__________-- ATTEST: Subcribed d sworn before me,a Nortary Public,in and f e State of Washington residing 4n ,,t„ - ,on the (o Vv. day of MA141'1'1 KAMCHEFF > ?; NOTARY PUBLIC . '1 �G' STATE OF WASHINGTON : MARILYN EFF COMMISSION EXPIRES r MY APPOINTMENT EXPIRES:6.29.03 91 l'`"F 29 2003 _ _ .�: /r / CITY OF RENTON ;a Planning/Building/Public Works MEMORANDUM DATE: July 20, 2000 TO: Reviewing Departments FROM: Elizabeth Higgins x 7382 SUBJECT: Renton Station Drainage (LUA00-068, SA-H, ERC, V) During the course of the planning review it was determined that the above referenced project would require a variance from the Critical Areas Ordinance in order to do the proposed work within a 50 foot wetland buffer. Included herewith is the variance request from the applicant and the comments submitted previously from your department. Please submit additional comments, if necessary, by July 27, 2000. Thank you very much. / PLANNING BERGER/ARAM ENGINEERING ENGINEERS I N C. ENVIRONMENTAL f PROGRAM MANAGEMENT Transmittal Memorandum To City of Renton Date 6 July 2000 Development Services Division Project Olympic Pipeline Renton Station Project Our Number Attention Ms. Elizabeth Higgins, Senior Planner Your Number LUA00-068, ECF, SA-H e 'J H Regarding Variance Request I am forwarding OPrints DOriginals DReproducibles ❑ Photocopies DOther Quantity ID Number Date Description 10 Variance Request Justification Remarks The attached material is submitted per your 26 June 2000 letter to Olympic Pipeline Company. DEVELOPMENT PLANNING CITY OF RENTON JUL 12 2000 RECEIVED cc: /�/a rO// &ea',c/ BERGER/ABAM Engineers Inc.,33301 Ninth Avenue South•Federal Way,WA 98003-6395 Phone 206/431-2300•Fax 206/431-2250 DEVELOPMENT PL4N CITY OF RENTOA JUSTIFICATION FOR VARIANCE REQUEST JUL 12 2000 OLYMPIC PIPELINE COMPANY RENTON STATION DRAINAGE IMPROVEMENT PROJECT RECEIVED BACKGROUND Olympic Pipeline Company (applicant) applied for an administrative site plan review for its Renton Station Drainage Improvement Project. The application included a request for a certificate of exemption regarding the City's new critical areas ordinance because some of the proposed facilities would lie within a 50-foot wetland buffer. The City indicated its acceptance of the application material for review in a June 6, 2000 letter(see attachment 1). Subsequently, in a June 26, 2000 letter,the City stated that a variance would be required, rather than an exemption, because of the number and type of proposed facilities that would be within the buffer(see attachment 2). REQUEST The applicant requests the City approve a variance as provided for under Section 4-3-050, N, as amended by Ordinance 4835. The variance is to allow construction of facilities within a wetland buffer as described below in the Proposed Facilities section. EXISTING SITE Olympic Pipeline Company's Renton Station is located on an approximately 12 acre property located immediately west of Lind Avenue SW and north of SW 23`d. Approximately the eastern half of the property was filled with 7 to 10 feet of soil material and gravel to create a site suitable for the installation of buildings, pipelines, pumps, and other facilities required for the handling and transport of refined petroleum products. These facilities were constructed in 1964 and 1965. A general layout of the facilities is shown on the site plan drawing that was submitted with the original application for administrative review. The filled area with the existing and proposed facilities is referred to herein as the project site (as distinguished from the total property). A chain-link fence exists around the perimeter of the project site and is located at the top edge of the fill side slope. The western half of the property remains naturally vegetated and undeveloped. WETLAND AND BUFFER BOUNDARY A wetlands study and report was prepared for the property. The study concluded that the western half of the property (the non-filled part) is a regulated wetland. The eastern edge of the wetland was staked in the field and is shown on the site plan. A 50-foot wetland buffer line is also shown on the site plan. PROPOSED FACILITIES The intent of the proposed project is to a) segregate the drainage catchment area that is subject leaks or spills of petroleum product from the area that is not so subject, and b) install secondary containment facilities to prevent petroleum product from reaching the off-site environment. 1 There are five proposed project facilities that would exist, in part,within the wetland buffer boundary; refer to the site plan for locations. 1. Drainage Containment Pond—A drainage containment pond is proposed to be constructed along the west edge of the project site at the location of an existing drainage pond. As shown on the site plan drawing,the western part of the pond would extend into the buffer area. As currently planned and as shown on the site plan,the footprint area of the proposed pond would not exceed the footprint area of the existing pond by more than 10 percent. However, this variance request also includes the option to expand the pond footprint by up to 30 feet to the south. During final engineering design it may be determined that it is necessary for hydraulic reasons to raise the floor of the pond to an elevation slightly higher than is currently envisioned. Therefore,the pond footprint would need to be expanded southward in order to maintain the desired storage volume. All pond work would remain inside the existing fence • line. 2. Tank Containment Area Impermeable Liner—An earth berm, located in the northwest part of the site, currently exists around a steel tank to create a spill containment area. It is proposed to install an impermeable liner material over the surface of the containment area to prevent the seepage of spilled petroleum product into the soil. The liner would be installed up the interior side slope of the berm and on the crest of the berm. As shown on the site plan drawing,the liner installation work would extend a few feet into the buffer area along the northwest corner of the containment area. 3. Spill Containment Pad—A concrete spill containment pad is proposed to be constructed at the north-central part of the project site. Approximately half of the pad would extend into the buffer area. (A second pad would also be constructed immediately to the southwest; however,that pad would not extend into the buffer area.) Tanker trucks will be parked on the containment pad during the unloading of a chemical material that is used on the project site. 4. Subsurface Impermeable Liner—An impermeable liner material is proposed to be installed in the existing gravel area in the north part of the project site. As shown on the site plan drawing, part of the liner would extend northward into the buffer area. The liner would be installed be removing approximately 12 inches of surface soil and gravel, then laying down the liner,then backfilling with sand and crushed rock. 5. Spill Containment Drains—Three spill containment drains (catch basins)would be installed within the buffer area. The purpose of these drains is to collect petroleum product that may leak from pipe fittings and connections. JUSTIFICATION This section provides the justification for the variance request. Addressed are the four criteria listed in item number 17 of Submittal Requirements For Hearing Examiner or Board of Adjustment, Variance. 1. Special Circumstances The wetland buffer, but not the wetland,extends on to an existing industrial use site. As previously described, some of the proposed facilities would be constructed within the buffer. The specific special circumstance is that it is not feasible to relocate the proposed facilities so as to be out of the buffer area. Relocation is not feasible because the proposed facilities need to be situated to complement and serve the existing facilities. The drainage containment pond needs to be at the site of the existing pond a)to provide an adequate hydraulic gradient drop from other areas of the site, b)to avoid conflict with other 2 facilities and uses of the site, and c) because adequate space is available to provide the desired storage volume. The impermeable liner for the existing tank containment area needs to extend to the top of the existing berm slope;thus the liner will extend a few feet into the buffer area in the northwest corner of the containment area. The liner needs to extend to the top of the berm a) so the entire potential storage area that would contain spilled product is covered with the liner, and b)to provide a proper design that would prevent water from seeping under the liner and causing hydraulic uplift of the liner. The spill containment pad will be used as the site where tank trucks are parked during unloading of chemical material. The pad needs to be located as shown on the site plan because this is where the existing pipelines that are attached to the tank trucks are located. The subsurface impermeable liner needs to extend into the buffer area so as to provide a complete seal in the area of potential leaks and spills of product. 2. Public Welfare All of the proposed facilities are intended to protect environmental quality and public welfare. There will be no impacts to adjacent properties. All construction work and facilities will be on the existing project site, in other words, within the existing fence line around the project site. Temporary erosion control measures (including filter fabric fence, hay bales, and reseeding) will be implemented to prevent sediment from being washed off the project site. 3. Not a Grant of Special Privilege The applicant is not aware of any similar project work (existing or proposed) on similar properties in the vicinity of the Olympic Pipeline property to enable a direct evaluation of the special privilege question. However,the requested variance does not appear to be a grant of special privilege because a) it is for a minimum purpose (see item 4, following), b)there will no additional fill in the wetland that could potentially increase the use and value of the property, c)there will be no adverse impacts on adjacent properties, and d) the proposed facilities are within the area of existing industrial facilities. 4. Minimum Variance The requested variance is only to allow the proposed drainage and spill containment facilities to partially extend into the buffer area. There is no request to allow new product handling or transmission facilities, or to allow any work beyond the existing project site as defined by the fence line. ATTACHMENTS 1. June 6, 2000 letter from the City of Renton regarding receipt and acceptance of initial application. 2. June 26, 2000 letter from the City of Renton regarding the need for a variance. 3 ATTACHMENT 1 • 4$ ; CITY C. RENTON 0, .sIL ,.{ Planning/Building/Public Works Department Gregg Zimmerman P.E.,Administrator . Jesse Tanner,Mayor June 6, 2000 • • Ms. Rosalie Ann Lopez Olympic Pipe Line Company • 2319 Lind Avenue SW Renton, WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA-00-068,SA-A,ECF Dear Ms. Lopez: 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. It is tentatively scheduled for consideration by the Environmental Review Committee on June 27, 2000. Prior to that review, you will be notified if any additional information is required to continue processing your application. Please contact me, at(425) 430-7382, if you have any questions. Sincerely, • Elizabeth Higgins, AICP Senior Planner _cC9tWo 1055 South Grady Way-Renton,Washington 98055 ®This paper contains 50%recycled material,20%post consumer - osi2si2000 1.3:2•3 FAX . ATTACHMENT 2 • r oo2 • .. .. ' ; .CITY. 0r' REN. . • •"l' • . .PlanningBuilding/Public Works'Department , Jesse:Tanner Ma or •'. • `, ' .• • . ,� Y • ••' • ' :.'�'... •Gregg:Zimmermtan P.1✓:;Administcnfor::• :. •' . June 26;.2000 , . Rose Ani Lo ez .. p ... Olympic Pg cline Company 23.19 Lind Avenue SW . .• . Renton,'WA 98055 • •.' .. : • . . •• • . ' ' .. '•:Re: . Renton•Station Drainage`Improvements;�L•UA00=068,ECF,V, SA-H.: , Halrl i{etter . .. . . .. . .• ' • Dear Ms.Lopez• . . .. . , . The-City of Renton PlanningBuilding/Public Works.Department,.Development Services • • • Division;has n• m considered'youerequest for a Letter of Exemptio fro the•City's Critical'Areas• • • • • •' '• • • Ordinance No,4835: Your request'is based on sizing of•the'reconstructed.drainage pond. ':. : • ' ' • • • .. Although the.size•of the.existing drainage:.Ropd,.•WAll not,be increased by more than ten percent,it ' : .. • '. • m th appears from plans submitted that the a wilt b'e•othet,new,;construction within the fifty-foot • . . • . • wetland buffer,..-This construction contists of removal of 12".oftopsoil and soil material, • ' ' installation of an impervious matetial,.placement,of sand And/or gravel;and construction of a • • • ' - portion of a concrete spill contaitirnent.pad,'.as well'as.pos iblj.other:-structures,;all within:the • . : wetland buffer area. We have determined that this new construction'will require a variance from ,• • • . Critical Areas Ordinance 146:'4835. •rather tlnuian:eltemption:'• • ' ' . ' Please.contact Laureen Iyicolay,at 425-43Qr;1.2Q4r;Eor,the"submittal;requi ements for a Variance. ' • • - • .• • ..the'review of the Variance request witl�.bo•lby#he`Cit!,of Renton Hearing Examiner..The criteria - by which the Variance request will be reviewed:can bey 'ound,in RMC.4-9-250.B.10. " • Until this required;information i,,.submitted;'and•acceptcd:as adequate,'.the project is on hold.as*of ' - • the date of this.letter: ' • . ' • This"hold",on the application,will necessitate rescheduling:th a ERC meeting as well as • scheduling a Hearing Examiner public meeting bn this•project. As a reminder,the ERC meeting is closed to the applicant and the public,but the hearing must be attended by the applicant or the • .applicant's representative. Please contact me at 425-430-7382,•if you have any questions.:.' • • : • •. , • Sincerely . • • /i ,a.62 .• . • . . . • ' Elizabeth Higgins;AICP .. • . • • • Senior Planner . • . . . • . ' . .• • • • 'Copy Laureeh•Nicolay._ . . • . ' ' •' Jennifer Toth Henning'• • , fine • • . • . . 1055 South Grady Way'-Renton;Washington'98055. This paper bantam 50 k recycled Materiel,20%post coheurner ' • JUN 28 ' 00 13 : 25 PAGE.002 **************************************************************** City of Renton WA Receipt **************************************************************** Receipt Number: R0003795 Amount: 500 . 00 07/12/00 15 :56 Payment Method: CHECK Notation: PB #1444634 Init: JEJ Project #: LUA00-068 Type: LUA Land Use Actions Parcel No: 302305-9084 Site Address: 2319 LIND AV SW Total Fees: 2, 003 .30 This Payment 500 . 00 Total ALL Pmts: 2, 003 .30 Balance: . 00 **************************************************************** Account Code Description Amount 000 .345 . 81. 00 . 0019 Variance Fees 500 . 00 /t DEVELOPMENT PLANNING CITY OF RENTON JUL 1 2 2000 RECEIVED OVY 0�i. ti :NOTICE OF APPLICATION AND PROPOSED OF DETERMINATION -NON SIGNIFICANCE - MITIGATED (DNS-M) • DATE: July 20,2000 • LAND USE NUMBER: LUA-00-068,SA-H,ECF,V • • APPLICATION NAME: RENTON STATION DRAINAGE IMPROVEMENTS • PROJECT DESCRIPTION: The applicant,Olympic Pipe Line Co.,has applied for an Administrative Site Plan • • • Review in order to Initiate its Renton Station Drainage Improvements Project. A Variance from the Critical Areas Ordinance,to allow work within the fifty-foot(50') • . buffer of a wetland, has also been requested. The project consists of .. reconstruction of an existing drainage pond, construction of concrete spill containment pads, and removal of approximately 12" of topsoil followed by • Installation of a subsurface,impermeable liner overlain by gravel,within a wetland buffer. • PROJECT LOCATION: 2319 Lind Avenue SW • OPTIONAL DETERMINATION OF NON-SIGNIFICANCE,MITIGATED(DNS,M): As the Lead Agency,the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permitted under the RCW 43.21C.110,the City of Renton is using the Optional DNS(M)process to give notice that a DNS-M is likely to be Issued. Comment periods for the project and the proposed DNS-M.are integrated into a single ' comment period. There will be no comment period following the issuance of the Threshold Determination of Non- • • Significance Mitigated(DNS-M). A 14-day appeal period will follow the issuance of the DNS-M. • • PERMIT APPLICATION DATE: May 30,2000 ' • NOTICE OF COMPLETE APPLICATION: July 20,2000 APPLICANT: Olympic Pipe Line Co. OWNER: Olympic Pipe Line Co. Permits/Review Requested: Environmental(SEPA)Review,Hearing Examiner Site Plan Review, . Variance from Critical Areas Ordinance ' • • • Requested Studies: • Wetland Delineation and Report • Location where application may 0 • be reviewed: Planning/Building/Public Works Division,Development Services • Department,Sixth Floor,1055 South Grady Way,Renton,WA 98055 PUBLIC HEARING: Public hearing scheduled for August 29,2000,before the Renton • Hearing Examiner In Renton Council Chambers. Hearings begin at 9:00 . AM on the 7th floor of the Renton City Hall located at 1055 Grady Way South. _ CONSISTENCY OVERVIEW: • Land Use: Heavy Industrial(IH) • • Environmental Documents that ' Evaluate the Proposed Project: State Environmental Policy Act(SEPA)Environmental Checklist,Wetland • Delineation and Report,Drainage Report • • Development Regulations Used For Project MiUgation: State Environmental Policy Act(SEPA),Renton Municipal Code • • Proposed Mitigation Measures: 1. Follow the recommendations of the wetland biologist regarding Class II wetlands and their associated buffers. • NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION - • Comments on the above application must be submitted in writing to Ms. Elizabeth Higgins, AICP, Senior Planner, . • Development Services Division,1055 South Grady Way,Renton,WA 98055,by 5:00 PM on July 31,2000. If you have questions about this proposal,or wish to be made a party of record and receive additional notification by mail,contact the planner.Anyone who submits written comments will automatically become a party of record and will be notified of any i ect ecision on th s - .• rF r ' N • V( 'i ct CONTACT PERSON: �ELIZABFTHHIGGINS AICP 425 430-7382 - . PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION .p. a ' df im! ,. A_ I l ,. . 1 _ J,,,x,, =.„,,,Inl--"-.....J. , -. —.,,,F.,----- ,.;.,.„1311!:.1' 1 ��; tliWpg, i,i,;1 7,"Iln ' Ilr; .:! .. I abiB nl, '. : _y. • . - '10F:7-.o I Tin. 2• .-- w -.r wr_w ..._1 1. • : '•5. • ._ . rn _,..,.7:1......." --.---__, -, .7,.7.4,z-1..;,:a. tariErgrirkEinuittifiti gig Q,Ni • e1e:Jelin v'.lN=I==w1 �.i k I e r ml 1- '-- --i i• • ah .= MI ..rR X• } ��� �y.I� � �, T . �� .:� —�wc,MIA r.7!�+rt•Qllil�l/�t:e -�-. it ''� .*F�v'' "'r � _L�:-?j:}�-' I�il":.'•,� .t�,;:4' ��.������limaF,an`�oG����N�• i t - "Cr - ow 19 P-- n�aw.,.R 7llM 1= T' il Ti I. 721 :.P.'"=1.7.1"..'1.•=1.! .1.:,:': ...w.:1111111-1611VrtitirliZir4m4.:7.0"itengl:P-1.1111;ri, • • L ,,Olympic Pipeline 1= A Y 1:' ' �, .,, ��ai• :OPP'. sl P/L % ' NI%rI �i � pyr, ‘1° :::::__ _ ..... ..44,1" ...../..Niril ''''..A5N1011=ii; 7 `I Project Site a) :I,I :1 _ _ * _ II Jr o.I.d,,te5,'.,,,,, A4 s I I __ ' --"-r SW 27th ' =� itrs. VIV1p;•cre�ii• - - t--,./ - - I' I . j' - '. CZ i iLIMI3 1,�,,tPd9) 6br-0O1aa.. N gill104 y • --- -- _ li ..�I ��A��la�4�. '•�eD' O iti 15 Jt c' tli 1 ,V. . Q& 9JR•!� ._ -� • SW 30 , !- ice' z_ 11 VS - >Pootioem• • e t I'%`` , f ; ,' i l - OLYMPIC PIPEMPANY ' °I. _."1/ .4, .• -• RENTON STATION CO DRAINAGE IMPROLINEVEMENT PROJECT I, -1 I - 1 - • North 111‘ Scale II--/ MOO' • 101 il" e A p - j 1 =- Indust dal use of project site and vicinity- • a I L �. .--.. — 4 i --e:te $�,� I NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION U, .. t:: CITYY RF :RENTON nfixx •. .ALL Planning/Building/Public Works Department Jesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator • • July 20, 2000 • • Ms. Rosalie Ann Lopez Olympic Pipe Line Company 2319 Lind Avenue SW Renton, WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA-00-068, SA-H, ECF, V Dear Ms. Lopez: The Development Planning Section of the City of Renton has received the application for a Variance from the Critical Areas Ordinance and determined that the subject application is complete according to submittal requirements and,therefore, is accepted for review. It is tentatively scheduled for consideration by the Environmental Review Committee on August 1, 2000. Prior to that review, you will be notified if any additional information is required to continue processing your application. This project has tentatively been scheduled to be heard at a public meeting before the Renton Hearing Examiner at his regular meeting in the Council Chambers on the seventh floor of City Hall, on August 29, 2000 at 9:00 am. The applicant or representative(s) of the applicant is required to be present at the public hearing. Please contact me, at(425)430-7382, if you have any questions. • Sincerely, Elizabeth Higgins, AICP Senior Planner • acceptance#2.doc 1055 South Grady Way-Renton,Washington 98055 ®This paper contains 50%recycled material,20%post consumer - Cr , :: CITY ►F RENTON LIE �_ Planning/Building/Public Works Department I Gregg Zimmerman P.E.,Administrator Jesse Tanner,Mayor June 26, 2000 Ms. Rose Ann Lopez Olympic Pipeline Company 2319 Lind Avenue SW Renton,WA 98055 Re: Renton Station Drainage Improvements,LUA00-068,ECF,V, SA-H Hold Letter Dear Ms.Lopez The City of Renton Planning/Building/Public Works Department,Development Services Division,has considered your request for a Letter of Exemption from the City's Critical Areas Ordinance No. 4835. Your request is based on sizing of the reconstructed drainage pond. Although the size of the existing drainage pond will not be increased by more than ten percent, it appears from the plans submitted that there will be other,new,construction within the fifty-foot wetland buffer. This construction consists of removal of 12"of topsoil and soil material, installation of an impervious material,placement of sand and/or gravel, and construction of a portion of a concrete spill containment pad, as well as possibly other structures,all within the wetland buffer area. We have determined that this new construction will require a variance from Critical Areas Ordinance No. 4835,rather than an exemption. Please contact Laureen Nicolay, at 425-430-7294,for the submittal requirements for a Variance. The review of the Variance request will be by the City of Renton Hearing Examiner. The criteria by which the Variance request will be reviewed can be found in RMC 4-9-250.B.10. Until this required information is submitted, and accepted as adequate,the project is on hold as of the date of this letter. This"hold"on the application will necessitate rescheduling the ERC meeting as well as scheduling a Hearing Examiner public meeting on this project. As a reminder,the ERC meeting is closed to the applicant and the public,but the hearing must be attended by the applicant or the applicant's representative. Please contact me at 425-430-7382, if you have any questions. Sincerely Elizabeth Higgins, AICP Senior Planner Copy: Laureen Nicolay Jennifer Toth Henning file 1055 South Grady Way-Renton,Washington 98055 CITY OF RENTON MEMORANDUM DATE: June 13,2000 TO: Elizabeth Higgins FROM: Allen Quynn SUBJECT: Drainage Report—Olympic Pipeline Company Drainage Improvement Project The following comments address the Surface Water Utility's concerns regarding the above referenced project: 1. Show drainage basin delineation for existing and proposed site conditions. 2. Clearly show land use areas and quantities for existing conditions. This should include soil types and assumed land cover. 3. How was the runoff coefficients and time of concentrations determined? Please show calculations with any assumptions and references in the report. 4. Show profile of storm drain system. Include all utility crossings on the profile. 5. Label oil/water separator on plans and include a detail of structure. 6. It is not clear how the runoff that infiltrates through the sand layer above the impervious liner is conveyed to the storm system. Is there an under drain system that serves this function? cc: Ron Straka e e d>1. e /)1/W-F-01 H:\DIVISION.S\UTILITIE.S\DOCS\2000-272.doc\a City:.;--:enton Department of Planning/Building/F _:_'Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: 3U-leaCe.I (,l ,S- }ENTEK— COMMENTS DUE: JUNE 20,2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2000 CITY OF RENTO APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth HigginslRE1'FIVFI! PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 JUN 2000 • LOCATION: 2319 Lind Avenue SW • SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): �Uit,Uli+azi iiJlvi LIi"a SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 ry V vI1 Y( - O, Kt10v( ✓? LIB Uagai 71/ 44C4441 Provisiov15 Ji C tfv1 Ctwlz_ C. CODE-RELATED COMMENTS I. G !r Cc,'15tvGIC.CI64 eZ✓12(W '✓,q1d -fez pV ,c›se IF /1�1.fQYl/l2l4. Inerpolf.(spx1,4A • 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 property assess this proposal. A) Oa/ 6 11/DO Signature of Director or Authorized Representative Date Routing Rev.10193 IMO Ch o enton Department of Planning/Building Works ENVIRONMENTAL & DEVELOPMENTL APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: -Kv -C�� #101/A COMMENTS DUE: JUNE 20,2000 APPLICATION NO: .LUA-00-068,SA-A,ECF DATE CIRCULATED: J j+ • 'y +ACC E W APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: , i -iggins 1 PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78.1 R 211(ln LOCATION: 2319 Lind Avenue SW SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): CITY OF RENTON FIRE UEPARTMCNT SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an .,, ••••• = • - - an -eview in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 a /1),' 4144p-t teJ rack B. POLICY-RELATED COMMENTS f 0 4 . C. CODE-RELATED COMMENTS /✓ , (,a �f We have revi wed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additi al information' eeded to properly assess this proposal. /SI, Signa ure f Director or Authoriz epresentative Date Routing Rev.10/93 (Y �. IMO 441 CITY OF RENTON FIRE PREVENTION BUREAU �N�o MEMORANDUM DATE: June 7, 2000 TO: Elizabeth Higgins, Senior Planner �( FROM: Jim Gray, Assistant Fire Marshal ,A SUBJECT: Olympic Pipeline Improvement, 2319 Lind Av. SW Fire Department Comments: 1. Provide detailed information on the spill containment and spill notification alarms or detection. 2. Separate plans and permits are required for changes to any fuel piping systems. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. Please feel free to contact me if you have any questions. enton Department of Planning/Buildinci Works ENVIRONMENTAL 8 DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT:?VoLY\ Re,U1,e,W — WaLU'--COMMENTS DUE: JUNE 20, 2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 200(bEvaopme .rcl_(:$ APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth HigginsCITY OF RENTON PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 JU-N 0'7 2000 LOCATION:. 2319 Lind Avenue SW • SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): RIVED SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 LancUShoreline 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 TT S IV O G .)i�''tO IM 144 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 Jinformation snneeded to properly assess this proposal. iV fli��trt'l 6.h/0 CU Signature of Director or Authorized Representative Date Routing Rev.10/93 City o , ton Department of Planning/Building/Put:r ..irks ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT:COVISAVI.LG.10V1 Seri t c c COMMENTS DUE: JUNE 20, 2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2000 CITY OF RENT(' APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth Higgins PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 JU t iOW LOCATION: 2319 Lind Avenue SW UHVISION SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 / /W e C. CODE-RELATED COMMENTS Afi) 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 information is needed to properly assess this proposal AC) Si ure of Director or rized Re sensen at Date<< 9 P Routing Rev.10/93 City enton Department of Planning/Building/f Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: S\ oAa-i1c51r) COMMENTS DUE: JUNE 20, 2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2 OE Berri.'" RECE1. APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth Hi g�ins PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 JUN 6 AM LOCATION: 2319 Lind Avenue SW suitiLD NG [7g�,,,,o`,✓� SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 � - Jo addl7iovl�t l top Gieizrevcc ivti assocIgtee/f •Ve-42 p/crej. C. CODE-RELATED COMMENTS i. /C4 Coi4414Ge / 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. ar7;([ 6/6/0d Signature of Director or Authorized Representative Date Routing Rev.10/93 City ton Department of Planning/Building/Porks ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET • REVIEWING DEPARTMENT: ..DV OVrJC DeUdeprYLWOMMENTS DUE: JUNE 20,2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2000 APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth Hi•gar "" --......._�, PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 EIV r4 ' LOCATION: 2319 Lind Avenue SW JUN 6 20 00 SITE AREA: site: 12 acres/project area is 6 acres I BUILDING AREA(gross): I d ecc�nu;v„�uF„€LorMLti, ivLIGHBORHO SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Adminis -•#_ i- _j:;:' -moigyv i order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow wor Y fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 . .1 C) el)tit Ci-'l i 5 5 U Lib • 62)___,._.Fo1—5- .IJ-ctrat C- d7 LA-rwvl rV Z.._ C. CODE-RELATED COMMENTS We have reviewedthLs a placation with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where 'anal information' to properly assess this proposaL /ic'A1 Signature of i ector or u orized Representative Date Routing Rev.10/93 City` Mon Department of Planning/Building/ orks ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: 126-A/1 ' COMMENTS DUE: JUNE 20,2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2000 5. C- 7c) APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth Higgins 5 O c PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 -vt LOCATION: 2319 Lind Avenue SW 0)z. m�, 'Q SITE AREA: site: 12 acres/project area is 6 acres BUILDING AREA(gross): SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland, has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 Wafer 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 NO/WU_ 1k) 4/)41--1,0 --X; lfr )4/. 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. 11/1Z) Signature of Director or Authorized Representative Date Routing Rev.10/93 Citton De rfinent of Planning/Building/ s ENVIRONMENTAL 8 DEVE OPMENT APPL ON REVIEW SHEET REVIEWING DEPARTMENT: P011C- COMMENTS DUE: JUNE 20, 2000 APPLICATION NO: LUA-00-068,SA-A,ECF DATE CIRCULATED: JUNE 6, 2000 APPLICANT: Olympic Pipe Line Company PROJECT MANAGER: Elizabeth Higgins PROJECT TITLE: Renton Station Drainage WORK ORDER NO: 78694 LOCATION: 2319 Lind Avenue SW SITE AREA: site: 12 acres/project area is 6 acres BUILDING AREA(gloss): SUMMARY OF PROPOSAL: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption, to allow work within the fifty-foot (50') buffer of a wetland,has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface, impermeable liner in a gravel area within a wetland buffer. 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 /201 0,40 , 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 additional information is needed to properly assess this proposal. Signature of Director o A thorized Representative Date Routing Rev.10/93 • PM••E•N S:EEZV:I CE:S> IUE .:Q..:..::::::::::.::..........................:...:.::...:................. • . <" fatiesub'e:ct.sit 0/Yr-%.60o)*:‹.1 P/e l��e Cor-,,0,7 y PROJECT NAME: R ie/771o''‘ Sic °"\ Dra'�'Gl e L 1PY-°`/e.-fr'P✓t Prod e c l APPLICATION NO: LUUl 6D • OCoS 1 Sal 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 See ,,,//dcAece sAee7-. 1�d211J�' . . CJ{ 'fib'✓rVj N' - D���� p 1' lO/t/NiNO '120 �� pp ®® • o (Attach additional sheets, if necessary) 4 J / r C .-.) (Continued) NAME ADDRESS ASSESSOR'S PARCEL NUMBER Applicant Certification , I, , t25/12h ,�-A)A� LOPE , hereby certify that the above list(s) of adjacent property (Print Name) owners and their addresses were obtained from: 0 City of Renton Technical Services Records ,,.• ,•'',,v,svAi . 0 Title Company Records �ti`?,.•44_��▪ ,° '. King County Assessors Records d ' 0: • j„ tit-1�� r- / c- • _ w., d" w Signed / Date —/9/�0 0'�}�d1'4d.N4i to 2- (A licant) J'g•'�*otss� =� NOTARY fa •� � • . ATTESTED: bscribed and sworn before me, a Notary Public, in and forthe State of Washington, residing L? BC Gc�� on the c day of �')titi, lUy Si ed Public) I77'(.`J�L�-h, Q.C/CS -/ -/"Q3 ,.:.::.:..::• e. Use.>:, :::;: ; ::::>;<:::.:::;.;:;:<.<:>:»::>'......• :...........;.....:. ..........;;::. .....:.. . For Citv of R n..ton .. • • `''::': :�;:'><:'`: �::;:<::`;:: .'::. ::::':>::'`:::::: :CERTIFIC...:ATIO.N::OF>MAILIN. .......... . .:................. _.... ... .:::::.::... .. I, • • -- hereby certify that notices of the proposed application were mailed#o :. :::::..;: :;..:.;:Ci Em toe . ... .: . !:..: :::.:..i:":_:,::. ::::.::;!:.::...:$:,:i:.Ii:::: :: each listedproperty:o neron:;..4�<4t -..(o .Z ;;:;:.;:;;:.....,:;.;:< . :.:..;: :,: .i:...,:...:::......::::::::: .:.. ••••..: : :> _ P r �'�/� t - •Signer,:::,+, :.;>. _�,� ::;>:: : ::`:>:::.<Date, NOTARY::>::>:':::':.::::. ::::>::..:'::.;::>.::. . > WA�IiINGTON::, ::.i....:: <:•.:.::::;: :::::::::::. .::::<: : 1..1. ! ATTE ::,..lJ pSworn>,!efore me,<a.Notary 9.`bl .in:and for the:State.;of Washington residing`, {' on the r day:of , 1• 3 nn ::::. :::::::� :: ::. :., ::. .... ;. :.::�.. ...1": s�5;i;3i�'::5::;`:?_:;i �i:>.;:i:::i:".;'`•i�:�.�.;:% `•:';:::•i •i::'>i:::`.:.'.::�"iii::i:: Sjgh listprop.doc�gpRILYN C�iE� REV 07/98 ��tENT EXPIRES:6.29'OS 2 04/28/2000 09:46 FAX 2002 * : Metrogcan / King (WA) * 'Owner pieker Properties Lp Parcel:19230•5 9076 Site :2201 Lind Ave SW Renton 98055 Xfered:l0/10/1997 . Mail :1150 114Th Ave SE Bellevue Wa 98004 Price :$30,958,000 Full Use:264 Off,1-3 Story,50K+ Sqft Phone :425-453-1600 Bedrm: Bath: TotRm: YB:1987o01: B1dgSF:114,000 Ac:9.39 * MetroScan / King (WA) * Owner :Spieker Properties Lp Parcel:192305 9095 Site :2101 Lind Ave SW Renton 98055 Xfered:10/10/1997 Mail :1150 114Th Ave SE Bellevue Wa 98004 Price Use:923 Vacant,Commercial,5 To 10 Acres Phone :425-453-1600 Bedrm: Bath: TotRm: YB: Pool: B1dgSF: Ac:9.56 * : MetroScan / King (WA) * Owner :City Of Renton Parcel:302305 9007 Site :2301. Lind Ave SW Renton 98055 Xfered:05/14/1992 Mail :200 Mill Ave S Renton Wa 98055 Price :$1,000,000 Use:932 Vacant,Industrial,l To 5 Acres Phone Bedrm: Bath: TotRm: YB: Pool: B1dgSF: Ac:3.24 * : hitreScan / Ring (WA) : * Owner :City Of Seattle Parce1:302305 9066 Site :2251 Lind Ave SW Renton 98055 Xfered: Mail :710 2Nd Ave #9Th Seattle Wa 98104 Price Use:622 Ind,Utilities,Public,Garage/Electri Phone Bedrm: Bath: TotRm: YB: Pool: BldgSF: Ac: .68 * : MetroScan / King (WA) * Owner :Texaco Trading & Transport Parce1:302305 9083 Site :2250 Lind Ave SW Renton 98055 Xfered: Mail :PO Box 5568 Denver Co 80217 Price Use:622 Ind,Utilities,Public,Garage/Electri Phone • Bedrm: Bath:' ' TotRm: YB: Pool: B1dgSF: Ac:1.96 * m: : MetroScan / King (WA) * Owner :Olympic. Pipe Line Company Parcel:302305 9084 Site :2319-Lindt'Ave SW Renton 98055 Xfered:04/05/1984 Mail :PO Box 5568-Denver Co 80217 Price Use:622 Ind,Utilities,Public,Garage/Electri Prone • Bedrm: Bath: ., TotRm: YB:1965oo1: BldgSF:11,912 Ac:11.77 ' * : MetroScan / Ring (WA) * Owner :Olympic Pipe Line Company Parcel:302305 9084 Site :2319 Lind-Ave SW Renton 98055 Xfered:04/05/1984 Mail :PO Box 5568 Denver Co 80217 Price Use:622 Ind,Utilities,Public,Garage/Electri Phone Bedrm: Bath: TotRm: YB:1965oo1: B1dgSF:3,400 . Ac:11.77 * : M.troScan / King (WA) * Owner :Olympic Pipe Line Company Parcel:302305 9084 Site :2319 Lind Ave SW Renton 98055 Xfered:04/05/1984 Mail :PO Box 556E Denver Co 80217 Price Use:622 Ind,Utilities,Public,Garage/Electri Phone Bedrm: Bath: TotRm: YB:1980oo1: B1dgSF:1,800� Ac:11.77 * : MetroScan / King (WA) * Owner :Tosco Corporation Parcel:302305 9086 Site :2423 Lind Ave SW Renton 98055 Xfered:12/28/1993 Mail :72 Cummings Point Rd Stamford Ct 06902 -Price :$3,585,644 Full Use:602 Ind,Manufacturing,Petro,Chemical P1 Phone :203-977-1000 Bedrm: Bath: TotRm: YB:1968o01: BldgSF:882 Ac:10.69 * : MetroScan / King (WA) * Owner :Tosco Corp Parce1:302305 9100 Site :2323 Lind Ave SW Renton 98055 Xfered: Mail :Attn:R S Dutton-Dc-48 Phoenix Az 85072 Price • Use:602 Ind,Manufacturing,Petro,Chemical P1 • Phone Bedrm: Bath: TotRm: YB: Pool: BldgSF: Ac:1.07 The Information Provided l's Deemed Reliable, But Is Not Guaranteed. APR 26 ' 00 9 :48 PAGE.002 / smooth Feed Sheets"" Use template for 5160® Spieker Properties Lp Spieke roperti s Lp Cit f nton 1150— 114th Avenue SE 1150— venue SE 200 M. venue South • Bellevue,WA 98004 Bellevue,W 004 Ren n,WA 98055 City f attle Texaco Trading and Transport O pic Pip Line Company 710 S and Avenue#9th P.O. Box 5568 '4F P.O. ox 68 seat e, A 98104 Denver, CO 80217 Denver O 80217 3023 90 2 Lind Ave e SW Renton,WA 98055 P. D1O pic XPi 6e8Line Company Olympi Pip Line Company Tosco Corporation P.O. Box 68 72 Cummings Point Road Denver CO 80217 Denver, 80127 Stamford, CT 06 30230 9 84 302305 08 231 ind venue SW 2319 L' d Av nue SW Re ton,WA 98055 Rento ,WA 9 55 Fusco Co oration kttn: R.S ► tton-Dc-48 Phoenix, r 8' 172 CONTACT PERSON: ELIZABF r3INS,AICP (425)430.7382 ptiSY O� + I PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION �- �NTo. NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON- SIGNIFICANCE -MITIGATED (DNS-M) • _ - "' DATE: June 5,2000 f( :.F: .i_i 0 LAND USE NUMBER: LUA-00-068,SA-A,ECF - / - II APPLICATION NAME: RENTON STATION DRAINAGE IMPROVEMENTS i •I �3'yr -' gip ,3 PROJECT DESCRIPTION: The applicant,Olympic Pipe Line Co.,has applied for an Administrative Site sill mr�••pg.j'lll�l nj %yr . Plan Review In order to Initiate its Renton Station Drainage Improvements • gift° , gel J ,C j°a Project A Certificate of Exemption,to allow work within the fifty-foot(50)buffer "11jum may'ie'y'vltr�'!t.-='-I, . . C of a wetland,has also been requested.The project consists of reconstruction of i7�r,a�5 _ I. an existingdrainage pond. Included in the proposed project Is the installation of ,n-- I •,`'_''_1_e! -1f—` __ a subsurface,impermeable liner in a gravel area within a wetland buffer. I •-Eh TSl .Wil,�t•_«. —�- PROJECTLOCATION: 2319 Lind Avenue SW Ty' I 11• -- - .�' gPit ").• llg••—' I ai _ 11 �, veal a. 0.1r. il OPTIONAL DETERMINATION OF NON-SIGNIFICANCE,MITIGATED(DNS,M):As the Lead Agency,the City of " ��'/" , -• 1.ya.�._ t„, Renton has determined that significant environmental Impacts are unlikelyto result from the proposed project. I -°_ - 1 __ ;! Therefore,aspermitted under the RCW 43.21C.110,the Cityof Renton is usingthe Optional DNS(M)process togive o 4 r` I Q"--%.�'.•,:-_ e -•'.•';a •%um S' 'pier"A'IN• P ( ) � 4.���A, x f• 1 - I:I r_�= _ 22=-e27.-1, 0i,^u notice that a DNS-M is likely to be issued.Comment periods far the project and the proposed DNS-Mare integrated into � ;�`_- =. � c�-_--��� ix w E6L2x..e°.v'i a single comment period.There will be no comment period following the Issuance of the Threshold Determination of - •` SW 19th Iv —�Zrai S .p fii µ:. Non-Significance Mitigated(DNS-M).A 14-day appeal period will follow the Issuance of the DNS-M. .1 I 'I AIWC 1 8•�,{•,f,�pm mil AiMI»n_+l' it,e. Oi1ii1- PERMIT APPLICATION DATE: May 30,2000 .�,�;• •,- J I ; Ir_• illil h t�'1kl ,E UcitIEV NOTICE OF COMPLETE APPLICATION: June 5,2000 .t Olympic Pipeline t' - = "-,�!a I 'a`r�M � ' j co °:' pp:.� _ Fig' APPLICANT: Olympic Pipe Line Co. P/L ,. l q-4:= :lam V_r`/ OWNER: Olympic Pipe Line Co. r N l ��;�—�� , Permits/Review Requested: Environmental(SEPA)Review,Administrative Site Plan Review, ----- - _ Project Site + 'III Certification of Exemption q, ego. ra = Or --t'' Ir Ii, II E , CO cble '�y,,cu{~ta�u�. Requested Studies: Wetland Delineation and Report 1�_ I 1 --I -• > i --4... k R to 'I � SW 27th`r - i__�` a. n4 tt-TA eo.,niY1f1• Location where application may ! �I f!) r. acq��'30 1 be reviewed: Planning/Building/Public Works Division,Development Services `,,, II I; CO ��+p6a- 'e per;Department,Sixth Floor,1055 South Grady Way,Renton,WA 98055 ' J1�/ e - I AS ,,J•J'�'I W \\Ts i��4npq %a d�'CONSISTENCY OVERVIEW: _r , I zr.'r� ^ahl� '1 ■a1 �`� ! =� p n Land Use: Heavy Industrtal(IH) —_:____ __ • _v- _ ,TER pi .I' ,�,. at 0 PO , • SW 30th un- I Environmental Documents that I a` "— Evaluate the Proposed Project: State Environmental Policy Act(SEPA)Environmental Checklist, i °I' Lii. Wetland Delineation and Report,Drainage Report �i _ j III .c�in ® OLYMPIC PIPELINE COMPANY ' Development Regulations I ' ._ RENTON STATION Used For Project Mitigation: State Environmental Policy Act(SEPA),Renton Municipal Code F j_ DRAINAGE IMPROVEMENT PROJECT Proposed Mitigation Measures: ! f'-w 1111911A1 � NOM scale I—q 1. Follow the recommendations of the wetland biologist regarding Class II wetlands and their associated buffers. - e i I r goo' e • _I'� �• Inawrn�aideewaato�wMl,;teaaarki,;y_ i I,i Comments on the above application must be submitted In writing to Ms.Elizabeth Higgins,AICP,Senior Planner, _ 1 - 'r3 Development Services Division,1055 South Grady Way,Renton,WA 98055.by 5:00 PM cc June 20,2000.If you have i _ _ ,�` questions about this proposal,or wish to be made a party of record and receive additional notification by mail,contact the planner.Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION NOTICE Cr PROPOSED ENVIRONMENTAL APPLICATION • - CERTIFICATION I, (kA - , hereby certify that (... copies of the above . document were posted by me in 6 conspicuous places on or nearby the described property on . -- Co, 7 oa • Signed: ATTEST: Subcribed and sworn before me, a Nortary Public,in an or the State of Washington residinem -DL-,- . , on the 1 1'1- day of p oO . • — - ‹.... « MARILYN KAMCHEFF �--�� (VOTARY PUBLIC • 7`l11 STATE OF WASHINGTON • COMMISSION EXPIRES MARILYN KAMCHEFF TUNE 29,2003 MY APPOINTMENT EXPIRES:6-29-03 -4. 0- --• -w -- 3 : az seP NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON- SIGNIFICANCE - MITIGATED (DNS-M) DATE: June 5,2000 LAND USE NUMBER: LUA-00-068,SA-A,ECF APPLICATION NAME: RENTON STATION DRAINAGE IMPROVEMENTS PROJECT DESCRIPTION: The applicant, Olympic Pipe Line Co., has applied for an Administrative Site Plan Review in order to initiate its Renton Station Drainage Improvements Project. A Certificate of Exemption,to allow work within the fifty-foot(50)buffer of a wetland,has also been requested. The project consists of reconstruction of an existing drainage pond. Included in the proposed project is the installation of a subsurface,impermeable liner in a gravel area within a wetland buffer. PROJECT LOCATION: 2319 Lind Avenue SW OPTIONAL DETERMINATION OF NON-SIGNIFICANCE,MITIGATED(DNS,M): As the Lead Agency,the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore,as permitted under the RCW 43.21 C.110,the City of Renton is using the Optional DNS(M)process to give notice that a DNS-M is likely to be issued. Comment periods for the project and the proposed DNS-M are integrated into a single comment period. There will be no comment period following the issuance of the Threshold Determination of Non-Significance Mitigated(DNS-M). A 14-day appeal period will follow the issuance of the DNS-M. PERMIT APPLICATION DATE: May 30,2000 NOTICE OF COMPLETE APPLICATION: June 5,2000 APPLICANT: Olympic Pipe Line Co. OWNER: Olympic Pipe Line Co. Permits/Review Requested: Environmental(SEPA)Review,Administrative Site Plan Review, ff Certification of Exemption Requested Studies: Wetland Delineation and Report Location where application may be reviewed: Planning/Building/Public Works Division,Development Services Department,Sixth Floor,1055 South Grady Way,Renton,WA 98055 '' CONSISTENCY OVERVIEW: Land Use: Heavy Industrial(IH) Environmental Documents that Evaluate the Proposed Project: State Environmental Policy Act(SEPA)Environmental Checklist, Wetland Delineation and Report,Drainage Report Development Regulations • Used For Project Mitigation: State Environmental Policy Act(SEPA),Renton Municipal Code • Proposed Mitigation Measures: 1. Follow the recommendations of the wetland biologist regarding Class II wetlands and their associated buffers. Comments on the above application must be submitted in writing to Ms. Elizabeth Higgins, AICP, Senior Planner, Development Services Division, 1055 South Grady Way,Renton,WA 98055,by 5:00 PM on June 20,2000. If you have questions about this proposal,or wish to be made a party of record and receive additional notification by mail,contact the planner.Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION CQNTAf±:T PERSON: ELIZABETH HIGC AICP (425)430-7382 rPL E A S E INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION I - .n... _ •...-..;Phi ' NW•re_�•$J wrn..u�l' _ y'I, • I) YL . , / j - I ill II I ;ice.—� ^,,.. -III/ 't,.,ligge ....,._, .5""°' ;. nalll i% r xG-•. qt fl i �1 .',.•-'il.- Oil 1ii�s[S,I��{•:�:'-":� l ! ' I n ti i .i 131 II:MIL-nll�l..y;:' I' .16111`'"',.. u3;�l 1p 131 x•50 i93fAal IIII' ' --I t 1g51.14'2 rl � 6g911f 7 qil EI. 1:!!q a Q� C�. 1.9'isle • �� �.. .,. E Awe �� . \`. lam— ..„.:l os -?i'xa��L .J.:T. =1.. ,E'a gt_9, c �� �Q�'ki3�f O..ill:3_. ._., 4 iZl s�t'.ig. ?.iae li�a'i.0 /}•�w��nacre.to 'R _� o I CO _ - \ �i1>i�►�i sere �f1e lain '�*� Fr 1 - . I 1 r a.5 '�z ��.1�Ewa J •�V• ,I I r �_ :9 _ V 'N s _ r mpg riSr �` ��, J\ 'Vv t,_ ' ..._r 113,co = 1 r t i p _:.._ SW 19 � _ �� ate, � 9 q•• geji 'it 1, d `' I ® 1! I I}�—j I b-'^ _� Q �BR'c�i:.MIB�I�I:a 1, / I ,4; ` I- ' i-,L, �v,' 13 I, ,,, , _i.,... tEggiagir, A....,4, � . Olympic Pipeline I .ii a I .Id 2 iwill7ntitggtalr L,. ` ex "iri I , e+ t`- I # _ . I ^ (-Ti �r t il� 41 r L 1 4 IL _l 1� 1Jst�4, a' �44>¢ a4A O ^ . 10 t.,,,,,,.,._,--- e __i == 1 1 r '':'' In sl $e tr." i -,f.- --1 -..-- al -: pio.44. • N '101 tro'r:srliffeterlker:IFt"- _ • I I' - � IS t I. _ t fAittglaan., '— �' ,-- W 30h u� ff' y ., -----•---- titra I _° p'— I I 01 �� -• ' OLYMPIC PIPELINE COMPANY • a •a// � 4 e To 4. RENTON STATION - — ,�—_-----=- • DRAINAGE IMPROVEMENT PROJECT rl, I . I + `i/ I/ / I I .- �4 North Scale I --4 ` 400' 6 f _. t' Existing land use of project site and vicinity- . Industrial 9 r I/47- -_ .9 g it qa K•_ 7-I ' -{�— /�a..e• r.--I'__ __I_____, NOTICE OF PROPOSED ENVIRONMENTAL APPLICATION r ,,, -:, CITY ____)F RENTON Planning/Building/Public Works Department J e Tanner,Mayor Gregg Zimmerman P.E.,Administrator June 6, 2000 Ms. Rosalie Ann Lopez Olympic Pipe Line Company 2319 Lind Avenue SW Renton, WA 98055 SUBJECT: Renton Station Drainage Improvement Project No. LUA-00-068,SA-A,ECF Dear Ms. Lopez: The Development Planning Section of the City of Renton has determined that the subject application is complete according to submittal requirements and, therefore, is accepted for review. It is tentatively scheduled for consideration by the Environmental Review Committee on June 27, 2000. Prior to that review, you will be notified if any additional information is required to continue processing your application. Please contact me, at (425) 430-7382, if you have any questions. Sincerely, . /1:i.-ez...4-e---/-1-- --il-r--• t-g-------= Elizabeth Higgins, AICP Senior Planner accoptanco 1055 South Grady Way-Renton,Washington 98055 Esteticipmmrsermegsi.av*map ER :.::;.::.A ION >> >>> <«< >< > .... ......PROPS. . .. ..... ...�...................................... Note If tfiere'ita morel tfl$Iti'one Ie B owneIy;„ease`attac an additional >notanied"(NfssCer`ApplicsiiorY:>fat::ea�l<i'Dwne...�.......: PROJECT OR DEVELOPMENT NAME: • Ot j'Y)piG `P�pEL nc NAME: Renton Station Drainage Improvement Olympic Pipe Line Company , PROPERTY/PROJECT ADDRESS(S)/LOCATION: ADDRESS: 2319 Lind Avenue S.W. 2319 Lind Avenue S.W. • Renton,l� WA 98055 CITY: Renton, WA ZIP: 98055 KING 0230TY 5.908E402 R'S ACCOUNT NUMBER(S): TELEPHONE NUMBER: (425) 235-7736 EXISTING LAND USE(S): Industrial < :><>> >< :>APPLICANT:(► :> rtMer:than::ovn...:.:. .:::::..:...........:.. ..:::....:...................... PROPOSED LAND USES: NAME: Rosalie Ann Lopez No change COMPANY (if applicable): EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: Olympic Pipe Line Company Employment Area ValleyC I DEVELOPMER(7 PLAN�IIVG ADDRESS: 2319 Lind Avenue S.W. � n�Ap PROPOSED COMPREHENSIVE PLAN MAP DESIIGNrATrON (if applicable): No change MAY 3 0 2000 CITY: Renton, WA ZIP: 98055 EXISTING ZONING: RECEIVED IH (heavy industrial) 1� TELEPHONE NUMBER: (425) 235-7736 PROPOSED ZONING (if applicable): No change SITE AREA (SQ. FT. OR ACREAGE): NAME: Rosalie Ann Lopez Total Property Area: approximately 12 acr.44 Project Area: approximately 6 acre COMPANY (if applicable): PROJECT VALUE: $150,000.00 Olympic Pipe Line Company ADDRESS: 2319 Lind Avenue S.W. IS THE SITE LOCATED IN THE AQUIFER PROTECT IpNXIiiR,TOA72% No w c ` t� h�@� s- r CITY: �i �Renton, WA ZIP: 98055 c a o= IS THE SITE LOCATED IN ANY OTHER TYPE,OFfIV,I8VcIrstlitALIY SENSITIVE AREA? `'° a•+��"r tarot r� 30 3 t TELEPHONE NUMBER: yes 0rvS We-t of CA'1- " ritt; 0' (425) 235-7736 __ • .;: . .. .:. . . € F.::PRt PEF 'T'Y:> . h.:s... f+$.:s et:�.f...: ..::.:..:..:.:;Y.}..:.; _::::::::::::::.:::::::::::::.::::.:::.;<:::::»:;::> »:<»:»<::::IE�AI,.��5� 'f'IBC#I�.::........................:...::.:.�.::::._.#.:::::.:....:............:. ,�................................:............ .•--- •� ...........:.................... Attached. • rm n. ;<; _ANNEXATION $ SUBDIVISION: - —COMP. PLAN AMENDMENT $ _ REZONE $ _ LOT LINE ADJUSTMENT $ _ SPECIAL PERMIT $ _ SHORT PLAT $ TEMPORARY PERMIT $ _TENTATIVE PLAT $ 77 CONDITIONAL USE PERMIT $ _ PRELIMINARY PLAT $ SITE PLAN APPROVAL $ I poo _ FINAL PLAT $ _GRADE & FILL PERMIT $ (NO. CU. YDS: 1 PLANNED UNIT DEVELOPMENT: $ _VARIANCE $ (FROM SECTION: ) _ PRELIMINARY _WAIVER $ _ FINAL _WETLAND PERMIT $ ROUTINE VEGETATION — MOBILE.HOME PARKS: $ MANAGEMENT PERMIT $ _ BINDING SITE PLAN $ SHORELINE REVIEWS: _SUBSTANTIAL DEVELOPMENT $ _CONDITIONAL USE $ _VARIANCE $ — EXEMPTION $No Charge IZENVIRONMENTAL REVIEW $ , ,CO,CO REVISION $ . FFtDQVlT.. .............. I, (Print Name) ejO:..K\ LbY1'1O I‘tceclare that I am (please check one)_the owner of the property involved in this application, ► e authorized representative to act for the Vroperty owner(please attach proof of authorization), and that the foregoi /th ng statements and answers herein contained and the information herewith submitted are in all respects true and correct to the best of my knowledge and belief. *` I SiGrl/s . IATTEST: Subscribed and sworn to before me,a Notary Public,in and (✓�no ()� {I`+t for a State of (A)4 residing at (Nam r/ epresentati e) P/n C. , on the cA;day of presentative) O,(,(j'y / 1' ! ) 'k/+/ t ) r':% Vi (Signature of Notary Public) jp, 0 q F•' • �u v: .... .. ...:.:..........::.. ::. ...::: :. a ..:.tTh)s:.section..to:be.tomp.e..tedbY:�rt1G....::...f.:.)::: .:.:.............:.:.. a .:� .�::::.:: :::.::::::.:.. r ..:. .: :. . ...... .'�..............:::::::::::..A.::::AAb.::.:.BSI�:.;:.;:.CAP..S.;;;:.:CAP-.t�;:.:.:;gPA<::.:;..C.g;:..:.:;>..Et:j ::.;:.:LL><t;:::I»::;.>;;;;:>:>: *. .:. .::::....: . ... ....... . :::...: .... . .:::. ..:. .:::;:.. : . ..... . .. . ........5::.�.;..:SIV(:.::.:SI�I)w»: �:.;::�:>.::-A:>::>::ll::>�<:>::Y:;H:»::>3?U:><:>:; ....... :.:: lJt�:.. .�P.PP.:R:..::..R�lN1P::...SA..I�k..y.�AH.._SHPL.A.,..SHPi...N.... #'... �..4::.:...:. . w.::::.:.. ...: ::: .:.: TAL:POSTAGE:..PR.QVIOED...::5::::::....4.::::.:.:.::.::::.g.;.;:.:.;:.;;;:<.:::::::::::::.:.::::.:::::::::::...: . ...................................................................... MASTERAP.DOC REVISED 8/97 I • WASRIN LAND TITLE ASSOCIATION STANI • )RM POLICY OF TITLE INSURANCE Pioneer National Title Insurance Company WASHINGTON TITLE DIVISION 719 SECOND AVENUE SEATTLE, WASHINGTON 98104 • hereinafter called the Company, a California corporation, for valuable consideration, and subject to the conditions and stipulations of this policy, does hereby insure the person or persons named in item 1 of Schedule A, together with the persons and corporations included in the definition of"the insured" as set forth in the conditions and stipulations, against loss or damage sustained by reason of: 1. Title to the estate, lien or interest defined in items 3 and 4 of Schedule A being vested, at the date hereof, otherwise than as stated in item 2 of Schedule A; or 2. Any defect in, or lien or encumbrance on, said title existing at the date hereof, not shown in Schedule B; or 3. Any defect in the execution of any instrument shown in item 3 of Sched- ule A, or priority, at the date hereof, over any such instrument, of any lien or encumbrance not shown in Schedule B; provided, however, the Company shall not be liable for any loss, damage or expense re- sulting from the refusal of any person to enter into, or perform, any contract respecting the estate, lien or interest insured. The total liability is limited to the amount shown in Schedule A, exclusive of costs in- curred by the Company as an incident to defense or settlement of claims hereunder. In witness whereof, Pioneer National Title Insurance Company has caused this policy to be authenticated by pie facsimile signature of its President and Secretary but this policy is not valid unless attested by an authorized signatory. Pioneer National Title Insurance Company �.." rtVT I.E r,yRl'l By Al rME5IDENT 04#0 ••:,-.p'4.;;.• 0 0)t.44 KO( Id°Z4 if,41 •�f�• p ,`,r SECRETARlb 0 `Ors °�•1-` ti ��� • • Attest: \‘NNN\N `* . AUTHORIZED SIp ryATORY`OF•I LMED •"""• • MAY 18 ' 00 11 :07 PAGE.002 SCHEDULE A rs VO. B_7.62275 AMOUNT $238 ,7.50.00- DATE January 31, 1966 at 8: 30 a.m. PREMIUM $ 593.10 1. INSURED Olympic Pipe Line Company, a Delaware corporation. 2. TITLE TO THE ESTATE,LIEN OR INTEREST INSURED BY THIS POLICY IS VESTED IN The named insured'. 3. ESTATE,LIEN OR INTEREST INSURED Fee simple estate. • 4. DESCRIPTION OF THE REAL ESTATE WITH RESPECT TO WHICH THIS POLICY IS ISSUED As hereto attached. • • • • SCHEDULE B DEFECTS,LIENS,ENCUMBRAN' S AND OTHER MATTERS AGAINS'' WHICH THE COMPANY DOES NOT INSURE: SPECIAL EXCEPTIONS MAY 18 ' 00 11 :07 PAGE.003 (a) That portion of Government lot 9 and the Henry Meader Donation Claim No. 46, all in section 25, township 23 north, range 4 east, W. M. , in King County, Washington, described as follows: Commencing at the northeast corner of said section 25; thence south 0°49'10" west, along the east line of said section 25 a distance of 180.01 feet to an intersection with a line parallel to and 180 feet southerly, measured at right angles to the north line of said section 25; thence north 87°12' 59" west, parallel with said north line, 20.01 feet to an in- tersection with a line parallel to and 20.00 feet westerly, measured at right angles to the east line of said section 25, said point being the true point of beginning; thence north 87°12' 59" west, parallel and 180.00 feet southerly of the north line of said section, a distance of 1026.07 feet; thence south 1°C"�19" west 1095.58 feet; thy' ._.,e south 88°24'48" east 1029.43 feet to a_ oint on a line 20 feet web.erly, measured at right angles to the ea-t line of said section 25; '"Bence north 0°49'10" east parallel to said .._ Est line 1074.19 feet to ttrue point of begin- ning. (b) That portion of the northwest quarter of the northwest quarter of section 30, township 23 north, range 5 east, W. M. , in King County, Washington, described as follows: Commencing at the northwest corner of said section 30; thence south 0°49 '10" west, along the west line of said section 30, a distance of 180.01 feet to an intersection with a line parallel to and 180 feet southerly, measured at right angles to the north line of said section 30; thence south 89°52 '01" east, parallel with said north line, 20.00 feet to an intersection with a line parallel to and 20 feet easterly, measured at right angles to the west line of said section 30, said point being the true point of beginning; thence south 89°52 'O1" east , parallel and 180 feet southerly of the north line of said section, a distance of 910.93 feet to a point on a line 70 feet westerly, measured at right angles to the east line of said northwest quarter of the northwest quarter; thence south 1°35'12" west, parallel to said east line, 794 .72 feet to a point of curvature of a curve to the right of radius 344.265 feet; thence southwesterly along said curve 369.79 feet to a point from which the center of the circle of said curve bears south 26°52 '12" east; thence north 88°24 '48" west 716.02 feet to a point on a line parallel to and 20 feet easterly of, measured at right angles to the west line of said section 30; thence north 0°49'10" east along said parallel line, 1074.37 feet to the true point of beginning. MAY 18 ' 00 11 :08 PAGE.004 • 1. Exceptions and reservations contained in deed dated February 9, 1962, executed by Arthur L. Cady, a single man, conveying an undivided one-fourth interest in said property, recorded February 9, 1962 under auditor' s file No . 538,6152, as follows: Excepting and reserving always unto the grantor, his successors and assigns, forever all iron, natural gas, coal and all minerals, of any nature whatsoever, upon or in said land together with the sole, 'exclusive and perpetual right to explore for, remove and .dispose of said minerals by any means or methods suitable to the sellers, their successors and assigns, but without entering upon or using the surface of the lands hereby conveyed and in such manner as not to damage the surface of said lands or to interfere with the use thereof by the buyer, its successors or assigns . 2. Exceptions and reservations contained in contract dated June 25, 1959, executed by Clarence L. Cady, recorded July 1, 1959, under auditor's file No. 5050633, and in contract dated June 27, 1959, executed by Jane L. Geary, formerly Jane L. Cady, recorded July 1, 1959 under auditor' s file No. 5050635, as follows: Excepting and reserving always unto the seller, their successors and assigns, forever, all iron, natural gas, coal and all minerals, of any nature whatsoever, upon or in said land together with the sole, exclusive and perpetual right to explore for, remove and dispose of said minerals by any means or methods suitable to the sellers, their successors and assigns, but without entering upon or using the surface of the lands hereby conveyed and in such manner as not to damage the surface of said lands or to interfere with the use thereof by the buyer, its successors or assigns. NOTE: The deeds in fulfillment of said contracts do not contain said reservations . 3. Exceptions and reservations contained in deed executed by Glacier Park Company, a Minnesota Corporation, dated August 12 , 1965 and recorded September 13, 1965 under auditor's file No. 5927061, as follows: Excepting and reserving always unto the granter, its predecessors, successors and assigns, forever, all iron, natural gas, coal and all minerals of any nature whatsoever, upon or in the lands above described, together with the sole, exclusive and perpetual right to explore for, re- move and dispose of the same by any means or methods suitable to the Grantor, its predecessors, successors and assigns, but without entering upon or using the surface of the lands hereby conveyed and in such manner as not to damage the surface of said lands or to interfere with the use thereof by the Grantee, its successors or assigns. 4. Restrictions in Declaration of Protective Restrictions dated February 16, 1965, executed by Glacier Park Company, a corporation, recorded March 9, 1965, under auditor's file No. 5852490, as follows: I. No structure or building shall be located within 100 feet of the easter- ly margin of said property. II. The foregoing shall not prevent the use of the easterly 100 feet of said property for streets, railroad rights of way, or pedestrian, ve- hicular and utility access ways. III. The restriction set out in Paragraph I hereof shall remain in B-762275 nd rcl 5fEIMea MAY 18 ' 00 11 : 09 PAGE. 005 • • • force and effect until December 31, 1975. 5.. Easement for an electric transmission line over a portion of parcel (b) and other property as granted by instrument recorded April 24, 1962 under auditor's file No. 5417049; to which reference is hereby made for full particulars. NOTE: General taxes for 1966 the sum of which is not available at this time and which cannot be paid until February 15, 1966. • • • • • GENERAL EXCEPTIONS 1. Encroachments or questions of location, boundary and area, which an accurate survey may disclose; public or private easements not disclosed by the public records; rights or claims of persons in possession, or claiming to be in possession,not disclosed by the public records; material or labor liens or liens under the Workmen's Compensation Act not disclosed by the public records; water rights or matters relating thereto; any service, installation or construction charges for sewer, water or electricity. 2. Exceptions and reservations in United States Patents; right of use, control or regulation by the United States of America in the exercise of powers over navigation; limitation by law or governmental regulation with respect to subdivision, use, enjoyment or oc- cupancy; defects,-liens, encumbrances, or other matters created or suffered by the insured; rights or claims based upon instruments . or upon facts not disclosed by the public records but of which rights,claims,instruments or facts the insured has knowledge. 3. General taxes not now payable;matters relating to special assessments and special levies,if any.preceding the same becoming a lien. • (End of Schedule l3) I C 1 OF I LM ED MAY 18 ' 00 11 : 10 PAGE. 006 CONDITIONS AND STIPULATIONS 1. The Company shall have t_ ght to,and will, at its own expense, defend t isured with respect to all demands and legal proceedings founded upon a caiin of title, encumbrance or defect which existed or is claimed to have existed prior to the dare hereof and is not set forth or excepted herein; reserving, however, the option at any time of settling the claim or paying the amount of this policy in full. In case any such demand shall be asserted or any such legal proceedings shall be instituted the in- sured shall at once give notice thereof in writing to the Company at its home office and, if the insured is a party to such legal proceedings, secure to the Company, within ten days after service of first process upon the insured, the right to defend such legal proceedings in the name of the insured so far as necessary to protect the insured, and the insured shall render all reasonable assistance in such defense. If such notice shall not be given, or the right to defend secured, as above provided, then.all liability of the Company with regard to the subject matter of such demand or legal proceedings, and any expense incident thereto, shall terminate; provided, however, that failure to give such notice shall in no case prejudice the claim of the insured unless the Com- pany shall be actually prejudiced by such failure and then only to the extent of such prejudice. 2. In the event of final judicial determination by a court of competent jurisdiction, under which the estate, lien or interest in- sured is defeated or impaired by reason of any adverse interest,lien or encumbrance not set forth or excepted herein,claim may be made as herein provided. A statement in writing of any loss or damage, for which it is claimed the Company is liable, shall be furnished to the Company at its home office within sixty days after such loss or damage shall have been ascertained. No ' right of action shall accrue with respect thereto until thirty days after such statement shall have been furnished and no recovery shall be had unless an action shall have been commenced thereon within one year after the expiration of said thirty days. Any rights or defenses of the Company against a named insured shall be equally available against any person or corporation who shall become an insured hereunder as successor of such named insured. 8. The Company may at any time pay this policy in full, whereupon all liability of the Company shall terminate. Every pay- ment made by the Company, exclusive of costs incurred by the Company as an incident to defense or settlement of claims hereunder, shall reduce the liability of the Company by the amount paid. The liability of the Company shall in no case exceed the actual loss of the insured and costs which the Company is obligated to pay. When the Company shall have paid a claim here- under it shall be subrogated to all rights and remedies which the insured may have against any person or property with respect to such claim, or would'have if this'policy had not been issued, and the'insured !Hall transfer all such rights to the Company. If the payment made by the Company does not cover the loss of the insured, such subrogation shall be proportionate. Whenever the Company shall be obligated to pay a claim under the terms of this policy by reason of a defect in the title to a portion of the area described herein, liability shall be limited to the proportion of the face amount of this policy which the value of the defective portion bears to the value of the whole at the time of the discovery of the defect, unless liability is other vise specifi- cally segregated herein. If this policy insures the lien of a mortgage, and claim is made hereunder, the Company may pay the entire indebtedness and thereupon the Insured shall assign to the Company the mortgage and the indebtedness secured thereby, with all instruments evidencing or securing the same, and shall convey to the Company any property acquired in full or partial satisfaction of the Indebtedness, and all liability of the Company shall thereupon terminate. If a policy insuring the lien of a mortgage is issued simultaneously with this policy and for simultaneous issue premium as provided in rate schedule,any payment by the Company on said mortgage policy with respect to the real estate described in Schedule A hereof shall reduce pro tanto the liability under this policy. All actions or proceedings against the Company must be based on the provisions of this policy. Any other action or actions or rights of action that the insured may have or may bring against the Company with respect to serv- ices rendered in connection with the issuance of this policy, are merged herein and shall be enforceable only under the terms,condi- tions and limitations of this policy. 4. The following terms when used in this policy mean: (a) "named insured": the persons and corporations named as insured In Schedule A of this policy; (b) "the insured": such named insured together with (1) each successor in ownership of any in- debtedness secured by any mortgage shown in Item 3 of Schedule A, (2) any owner or successor in ownership of any such indebt- edness who acquires title to the real estate described in Item 4 of Schedule A, or any part thereof,by lawful means in satisfaction of said indebtedness or any part thereof, (3) any governmental agency or instrumentality which insures or guarantees said indebtedness or any part thereof, and (4) any person or corporation deriving an estate or interest in said real estate as an heir or devisee of a named insured or by reason of the dissolution, merger, or consolidation of a corporate named insured; (c) "date hereof": the exact day, hour and minute specified in Schedule A; (d) "public records": records which, under the recording laws, impart constructive notice with respect to said real estate; (e) "home office": the 9ffice of the Company at the address shown herein; (f) "mortgage": mortgage, deed of trust, trust deed, or other security instrument described in.Schedule A. • o fi O c.i E-i z ° i .. Z 0 ° ww H °z Q w cn 1• ( MAY 18 ' 00 11 : 11 PAGE.007 OLYMPIC PIPELINE COMPANY RENTON STATION DRAINAGE IMPROVEMENT PROJECT PROJECT NARRATIVE. APPLICATION Olympic Pipeline Company is applying for an Administrative Site Plan Review for its proposed Renton Station Drainage Improvement Project. Olympic is further applying for a Certificate of Exemption regarding the City of Renton's new critical areas ordinance because some of the work lies within the 50- foot buffer area of a wetlands(but not within the wetlands). The basis for the proposed exemption is Section 4-3-050-c-5-d-4,Modification of Existing Utilities or Streets by 10 Percent or Less,of the ordinance. The proposed drainage containment pond,which partially lies within the wetlands buffer area on the west side of the site,involves an upgrade and reconstruction of an existing drainage pond wherein the footprint of the new pond increases the footprint of the existing pond by less than 10 percent. The footprint of the existing pond(including the earth embankment)is 37,800 square feet;the footprint of the proposed pond is 39,900 square feet,which is approximately a 5 percent increase. Other project work in the north part of the site will be within the buffer area. The north part of the project site currently consists of gravel and paved areas and pipeline and pumping facilities. The work in this area includes the installation of a subsurface impermeable liner in the gravel area and concrete spill containment pads. There will be no change in the developed area of the site,and there will be no change in the facilities for handling petroleum products; therefore,this project work falls within the exemption criteria. PROJECT SUMMARY This project is located on Olympic Pipeline Company's Renton Station site where refined petroleum products are handled with transmission pipelines,pumps,valves,and a storage tank. These facilities may be subject to leaks and spills of the product. The intent of this project is to construct new containment and drainage facilities to prevent spilled or leaked product from migrating off-site or into subsurface soils. The proposed facilities include a drainage containment pond,new drainage pipelines,several concrete spill containment pads,an impermeable liner within an existing spill containment area,and a subsurface impermeable liner within certain unpaved(gravel)areas of the site. • Zoning of site and adjacent properties: Heavy Industrial (IH);no change is proposed • Comprehensive Plan designation: Employment Area Valley, no change is proposed • Current site use: Transport through pipelines of refined petroleum products;administrative and operations buildings;no change is proposed • Off-site improvements proposed: None • Approximate project construction cost: $150,000 • Sensitive Areas: A Type 2 wetland and a flood plain exist on the Olympic Pipeline property to the west of,but not on,the project site area. The wetland and flood plain also exists on the adjacent property to the north of the Olympic Pipeline property. 'NMNING • Soil type: Approximately 10 feet of fill (silty sand with gravel)overlying all Id'4pe 'DeV FRC At 3 0 2, 53 • Fill and excavation quantities: Approximately 100 cubic yards of fill will be brought on site to create the embankment for the drainage containment pond. In addition,the top 12 inches of existing soil material in the north part of the site will be temporarily removed and stockpiled on site while an impermeable liner material is installed. Approximately 500 cubic yards of sand and drain rock will be brought on site as initial backfill over the liner;then approximately 500 cubic yards of stockpiled material will be reinstalled and the remaining 500 cubic yards of stockpiled material will be hauled off site or wasted on site. • Trees to be removed: None • Land to be dedicated to the City: None PROJECT DESCRIPTION The project involves new facilities and other improvements to the storm drainage system at the Olympic Pipeline Renton Station. Refer to the project drawings that are included with the Conditional Use Permit application material. The total Olympic Pipeline property is about 12 acres,as shown on the site map on Drawing T-1. However,the project construction site is limited to approximately six acres of the eastern part of the property. The project site is on fill material that was placed on the property approximately 20 years ago. The intent of the drainage improvements is to segregate runoff originating in the north part of the site that is subject to contamination from spills and leakage of petroleum products,and route that runoff to a containment pond(refer to Drawing C-1). The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas adjacent to the site. No additional buildings or parking areas are proposed as part of the project. Existing Conditions Approximately the south half of the project site consists of administrative buildings,along with asphalt and crushed rock parking areas. The north portion of the site consists of pipelines,pumps,and other hydraulic equipment designed to handle refined petroleum products and other materials. Runoff from most of the south part of the site is collected in small diameter pipelines that are routed to a drainage pipeline along Lind Avenue. The Lind pipeline runs northward approximately 100 yards where it discharges into an unnamed drainage channel that flows westward to Springbrook Creek. Some of the runoff from the south part of the site flows overland westward to an existing drainage pond(drainage pond 2 as shown on Drawing C-1). Runoff from the north part of the site is generally in the form of surface flow and then small pipelines that run westward to a small drainage pond at the northwest corner of the site(drainage pond 1 as shown on Drawing C-1). Both of the existing ponds have a small storage capacity and no outlet control. Proposed Project The proposed improvements to the drainage system include the following(refer to Drawing C-1). • Create a defined grade break(with a low asphalt ridge)to segregate surface water runoff that originates from the north part of the site from the runoff that originates in the south part of the site. In effect,two separate(north and south)drainage areas will be created. North Drainage Area ■ Install drain pipes and catch basins;route the pipes to an oil-water separator,and then to a new stormwater containment pond located on the west side of the site(at the location of the existing pond 2). • Install concrete spill containment pads that are connected to the drainage pipeline. One pad will be used for parking tanker trucks during the loading of petroleum products. Another pad will be used for parking tanker trucks during unloading of chemicals that are injected into the petroleum pipelines. Miscellaneous small containment pads will also be located at pumps,scraper,and the launcher/receiver doors. A valve will be installed on the drain line from each of the pads. The valves will normally be in a closed position to prevent any spilled material from entering the drainage system. Upon inspection by Olympic Pipeline operations staff to assure that no contaminants are in the containment pads,the valves will be periodically opened to release captured rain water to the drainage system. • Install a new impermeable liner material inside the existing spill containment area for the existing 10,000 barrel steel tank. The containment area is created by an earth embankment. The liner is intended to prevent spilled or leaked substances from entering into subsurface soils. The interior of the containment area will be connected to the new drainage system via a pipeline. A valve on the pipeline will be in a normally closed position. The valve will be opened periodically to release captured rain water. • Install a subsurface impermeable liner in other areas of the north drainage area to prevent contaminants from seeping into the ground. • Construct a stormwater containment pond,on the west side of the project site,into which runoff from the north drainage area would be routed. The new pond will be created by reconstructing the earth embankment of the existing pond(pond 2). The existing pond has a small storage volume because there is no outlet control. The intent of the new pond is to provide outlet control and a larger storage volume to capture spilled material and contaminated runoff water; the pond is not intended to serve as a stormwater detention facility to reduce peak flow discharge rates. The pond will include an impermeable liner,a low-level outlet pipe with a control valve,and a high-level overflow pipe. Pond discharge will be westward into a vegetated area at the same location where the existing pond discharges. The footprint of the new pond,including the earth embankment,will be approximately 5 percent larger than the existing pond. The containment pond can be operated with the valve in either the normally open or normally closed position. For example,if operated in the normally closed position,the pond will gradually fill with runoff water. At some water elevation before the water level reaches the overflow elevation Olympic Pipeline staff will check for contaminants,and will then open the valve if there is no contamination. If the pond is operated with the valve normally open,runoff water will pass freely through the pond with no significant increase in water elevation. Company staff will close the valve if a leak or spill occurs to prevent contaminants and runoff from being released. Olympic Pipeline staff will be responsible for determining the most effective mode to operate the control valve,and for removing any contaminants that are trapped in the pond. South Drainage Area • Install additional drain pipes and catch basins that will tie into an existing drain pipe in the southeast corner of the site. The existing drain pipe discharges into.a catch basin on the storm drain pipeline in Lind Avenue SW. OLYMPIC PIPELINE COMPANY RENTON STATION DRAINAGE IMPROVEMENT PROJECT CONSTRUCTION MITIGATION DESCRIPTION Proposed Construction Dates Start: early August 2000 End: late September 2000 Hours of Operation Normal work hours expected to be between 7:00 AM and-5:00 PM Proposed Hauling/Transportation Route Approach project site travelling north or south bound along Lind Avenue SW Mitigation Measures A temporary erosion control plan will be implemented to meet City of Renton regulations. Traffic and construction noise impacts are not expected to be significant. Specialty Construction Hours None are expected. Preliminary Traffic Control Plan Construction traffic into the site from Lind Avenue is not expected to be significant; however traffic will be controlled per City of Renton regulations. r` A ,�), ����p�/o/NQ CITY OF RENTON Panning / Building / P-trblic Works MEMORANDUM • NG DATE: March 2, 2000 ‘A-c TO: Pre-Application File pti`10.%( Q6® 3p`L FROM: Peter Rosen, Senior Planner 3thr- eASO SUBJECT: Olympic Pipeline Improvements - Pre-App File No. 00-16 We have completed a preliminary review of the pre-application for the proposed Olympic Pipeline Improvements project. Listed below and attached on several sheets are our preliminary findings. Although every attempt is made to ensure that these comments are complete, a more thorough examination of the project at the time of application submittal may reveal additional issues that may alter these comments or require additional comments. Proposal—The proposal is to modify the drainage system so that site areas subject to potential leaks and spills of petroleum products are hydraulically segregated from site areas with "clean" runoff water. The segregation would be accomplished by slightly recontouring the site and installing new curbs, catch basins, and pipelines. Permit Requirements. The Olympic Pipeline facility is considered a "large utility" because the facilities serve the entire City or region. The code definition of large utilities includes natural gas transmission lines. Large utilities require approval of a Hearing Examiner conditional use permit (CUP). The proposed improvements to the drainage system on the site would require conditional use permit approval. SEPA environmental review is required for minor land use decisions such as conditional use permits. The land use permit process including SEPA environmental review and a Hearing Examiner Conditional Use Permit Review takes approximately 12 to 14 weeks, which includes the appeal periods. The public hearing would follow after the SEPA appeal period. SEPA Environmental Review - A SEPA environmental checklist must be submitted with the application materials. The applicant is responsible for disclosing accurate information regarding potential environmental impacts associated with the proposal. The Environmental Review Committee (ERC) will review the proposal, consider mitigation measures, and issue a threshold determination. A wetland re ort 's required if there are wetlands located on the subject property. The wetland report shou inc ude a delineation of the wetland edge, an analysis of impacts to the wetland, and a mitigation plan if applicable. City wetland regulations require an applicant to determine the classification of a wetland within 25 feet of the subject property, even if the wetland is not located on the subject site. Proposed revisions to the Sensitive Areas Ordinance (SAO)would increase this distance to 100 feet. If the required buffer width for an off-site wetland extends onto the subject property, the applicant must preserve that portion of their property in order to maintain an undisturbed buffer width. Conditional Use Permit: A Conditional Use Permit is required for"large utilities" in all zoning designations. Section 4-9-030.G. of the Development Regulations lists the criteria which the Hearing Examiner will evaluate for a Conditional Use Permit. The application submittal must include a written justification addressing these criteria. Zoning. The project site is zoned Heavy Industrial (IH). Most development standards of the IH zone would not apply to the proposed stormwater facilities. The zoning does require a minimum 15-foot landscape width along non-arterial streets. This landscape standard would apply along the site frontage of Lind Ave. SW. If the required landscaping is not presently existing along the street frontage, the applicant may be required to upgrade the landscape strip to comply with the code standard. `rne most common threshold for requiring Vie upgrade of a non-conforming condition is if the proposed action on the property would affect more than one-third (1/3)of the site. cc: Jennifer Henning - a DEVELOPMENT SERVICES ' CITY OF RENTON FEB 0 4 200U MEMORANDUM RECEIVED DATE: W9ov • TO: Construction Services, Fire Prevention, Plan Review, Project Planner FROM: Jana Hanson, Development Services Division Director SUBJECT: New Preliminary Application: ( / r;(. . top 'n1 �,,„�►.,�ti( LOCATION: e-D--)) I 1 L- t: J PREAPP NO. 00 A meeting with the applicant has been scheduled for `� ,(9 0 T 1'f\ , Thursday, FQ (-4y 6th , in one of the floor conference rooms (new City Hall). If this meeting is scheduled at 10:00 AM, the MEETING MUST BE CONCLUDED PRIOR TO 11:00 AM to allow time to prepare for the 11:00 AM meeting. Please review the attached project plans prior to the scheduled meeting with the applicant. You will not need to do a thorough "permit level" review at this time. Note only major issues that must be resolved prior to formal land use and/or building permit application submittal. Please submit your written comments to ek at least two (2) days before the meeting. Thank you. j C Xutrnee14-,-3; Preapp2 t 6 O��Y 0� . A CITY OF RENTON "P. �� FIRE PREVENTION BUREAU �'NTO MEMORANDUM DATE: February 14, 2000 TO: Peter Rosen, Planner FROM: Jim Gray, Assistant Fire Marshal . SUBJECT: Olympic Pipeline Improvement, 2319 Lind Av. SW Fire Department Comments: 1. We need detailed information in relation to the overall project. The Fire Department has concerns in relation to the containment of spills and limiting the spill to a product tight containment areas. 2. Separate plans and permits are required for changes to any fuel piping systems. 3. Provide details on new truck concrete pads that are being proposed along with the provisions for containment of any spills. Will the truck load/unload pad areas be covered? Please feel free to contact me if you have any questions. A � RENTOr MEMORANDUM F EB�^� a 2000 <-+u�Luuvu way:610N DATE: r / 1((90 TO: Construction Services, Fire Prevention, Plan Review, Project Planner FROM: Jana Hanson, Development Services Division Director SUBJECT: New Preliminary Application: k LOCATION: 7 I , kr) AT; PREAPP NO. C`)0 ~ � to A meeting with the applicant has been scheduled for !a (;O AM , Thursday, NIvv1,1% >rt,;� 6th , in one of the floor conference rooms (new City Hall). If this meeting is scheduled at 10:00 AM, the MEETING MUST BE CONCLUDED PRIOR TO 11:00 AM to allow time to prepare for the 11:00 AM meeting. Please review the attached project plans prior to the scheduled meeting with the applicant. You will not need to do a thorough "permit level" review at this time. Note only major issues that must be resolved prior to formal land use and/or building permit application submittal. Please submit your written comments to ' at least two (2) days before the meeting. Thank you. Des Ti Stuttc,ccaCi — Kin/ Coo+NT Li Suvieict Gu ff✓ Nlui4ue..E - it'g!i vev.'ic v Level // C{JLi1v1 i (-}✓2Ci+6'i Gtl1Gt��� /5 .-u'-1 l;C S 1d//14 S-1°irt de;✓GIS ) c�., II VeCb{I✓[ L/.,tf;1v C.,I/ Qe✓I4AI1 -c.1 (/l✓c, lH ✓,S/CL ACI4 Gci i 3/1/4,J Preapp2 • • • .. • • f Nr..Y:ti¢'e 't�`S.�_.� • • FEB 4 2000 MEMORANDUM . DATE: 2/4l0 TO: Long Range Planning FROM: Jana Hanson, Development Services Division Director SUBJECT: New Preliminary Application: O1`Ir\A?�c_ ;Po\ sie -rv.{7QrnaQiv.+-9` .t LOCATION: � l° A\ PREAPP NO. OO - Ilo • Please review the attached preliminary project plans for consistency with applicable Comprehensive Plan Policies. • Pleas sub it your written comments to :�Q- �� no later than `• �� dV . Thank you. We will not be able to include comments received after this date in the presentation/summary we prepare for the applicant. 5%7L- l 5 "06StCJVIliaY") ✓rv. iT/vatl-ti - '�u I S f,C� Co v pRt'1-►c.'rvsIvL PIr/.1, �10 9OL-*, —nkcr P62_0POS/1-z_ ..'v rGR $i{�y� tC'71 L Pcii7vni• • preapp _- - _ - uEVELOPMENT SERVICES DIVISION WAIVER OF SUBMITTAL REQUIREMENTS FOR LAND USE • APPLICATIONS EME . OM M Calculations, Survey, Drainage Report 2 '<><>>' <> ><``' <'' < >« `<`> > > >< >s ' » ;>«°> >> < >> 7` :..:.::..::::n. ArCftl.::::Ct.:. :.:.3 AND 4..... :':.::..;;:;•:.:. :.. Elevations, Grading 2 < < > Existing Easements (Recorded Copy)4 r Plans 3 AND 4 Ge otechnica e o 'AND Grading Plan, Conceptual 2 /JRiAJ Gradi9 n Plan Detailedz '. : King County Assessor's Map Indicating Site 4 • Landsca in Plan _Conce uala. 't Legal Description 4 List.of Surrounding•Property:Owners4 Mailing Labels for Property Owners 4 Map of Existing Site Conditions 4 Master Application Form 4 . .....:.:: Monument Cards.(oneper monument) , Parking, Lot Coverage & Landscaping Analysis 4 Plan Reductions (PMTs) 4 Postage 4 2 Public Works Approval Letter2 ., Title Report or Plat Certificate 4 Topography Map (5' contours)3 Traffic Study 2 ! 1 (-1 Tree Cuttin Ne etation ClearingPlan 4 -• 9 9 Utilities Plan, Generalized 2 /V F• ( ) Wetlands Delineation Map 4 Wetlands Planting Plan 4 Wetlands study This requirement may be•waived by: ' 1. Property Services Section PROJECT NAME:0 2. Public Works Plan Review Section i r D V -/ \-- 3 3. Building Section DATE: /4-A/r6/-/�2 i ?� 4. Development Planning Section ENVIRONMENTAL CHECKLIST A. BACKGROUND 1. Name of the proposed project: Olympic Pipeline—Renton Station Drainage Improvements 2. Name of Applicant: Olympic Pipeline Company 3. Address and telephone number of applicant and contact person: 2319 Lind Avenue SW,Renton,WA 98057; Ms. Rose Ann Lopez,Project Manager,425-227-5213 4. Date checklist prepared: 28 April 2000 5. Agency requesting checklist: City of Renton 6. Proposed timing or schedule (including phasing,if applicable): Construction planned for late summer 2000. 7. Plans for future additions, expansion, or further activity related to or connected with this proposal: There are no plans for future additions or expansions to the site drainage system beyond the subject proposal. 8. Environmental information that has been prepared, or will be prepared, directly related to this project: A drainage report will be prepared per City of Renton requirements. 9. Applications that are pending for governmental approvals or other proposals directly affecting the property covered by the proposal: No other applications are pending. 10. List of governmental approvals or permits that will be needed for the proposal: An administrative site plan review,is required from the City of Renton. A construction/ drainage permit will also be required. 11. Brief, complete description of the proposal,including the proposed uses and the size of the project and site: The project involves new facilities and other improvements to the storm drainage system at the Olympic Pipeline Renton Station. Refer to the attached project drawings. The total Olympic Pipeline property is about 12 acres, as shown on the site map on Drawing T-1. However,the project construction site is limited to approximately 6 acres of the eastern part of the property. The project site is on fill material that was placed on the property approximately 20 years ago. The intent of the drainage improvements is to segregate runoff originating in the north part of the site that is subject to contamination from spills and leakage of petroleum products, and route that runoff to a containment pond(refer to Drawing C-1). The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas adjacent to the site. No additional buildings or parking areas are proposed as part of the project. Nee' 1 P� 3 7310® A00063\aepechecklist.doc Existing Conditions Approximately the south half of the project site consists of administrative buildings, along with asphalt and crushed rock parking areas. The north portion of the site consists of pipelines,pumps, and other hydraulic equipment designed to handle refined petroleum products and other materials. Runoff from most of the south part of the site is collected in small diameter pipelines that are routed to a drainage pipeline along Lind Avenue SW. The Lind pipeline runs northward approximately 100 yards where it discharges into an unnamed drainage channel that flows westward to Springbrook Creek. Some of the runoff from the south part of the site flows overland westward to an existing drainage pond(Drainage Pond 2 as shown on Drawing C-1). Runoff from the north part of the site is generally in the form of surface flow and then small pipelines that run westward to a small drainage pond at the northwest corner of the site(Drainage Pond 1 as shown on Drawing C-1). Both of the existing ponds have a small storage capacity and no outlet control. Proposed Project The proposed improvements to the drainage system include the following(refer to Drawing C-1). • Create a defined grade break(with a low asphalt ridge)to segregate surfacewater runoff that originates from the north part of the site from the runoff that originates in the south part of the site. In effect,two separate(north and south)drainage areas will be created. North Drainage Area • Install drain pipes and catch basins;route the pipes to a weir, and then to a new stormwater containment pond located on the west side of the site(at the location of the existing Pond 2). • Install concrete spill containment pads that are connected to the drainage pipeline. One pad will be used for parking tanker trucks during the loading of petroleum products. Another pad will be used for parking tanker trucks during unloading of chemicals that are injected into the petroleum pipelines. Miscellaneous small containment pads will also be located at pumps, scraper,launcher/receiver doors,and the prover loop door. A valve will be installed on the drain line from each of the pads. The valves will normally be in a closed position to prevent any spilled material from entering the drainage system. Upon inspection by Olympic Pipeline operations staff to assure that no contaminants are in the containment pads,the valves will be periodically opened to release captured rain water to the drainage system. • Install a new impermeable liner material inside the existing spill containment area for the existing 10,000-barrel steel tank. The containment area is created by an earth embankment. The liner is intended to prevent spilled or leaked substances from entering into subsurface soils. The interior of the containment area will be connected to the new drainage system via a pipeline. A valve on the pipeline will be in a normally closed position. The valve will be opened periodically to release captured rain water. • Install a subsurface impermeable liner in other areas of the north drainage area to prevent contaminants from seeping into the ground. A00063\eepachecklist.doc 2 • Construct a stormwater containment pond,on the west side of the project site,into which runoff from the north drainage area would be routed. The new pond will be created by reconstructing the earth embankment of the existing pond(Pond 2). The existing pond has a small storage volume and no outlet control. The intent of the new pond is to provide a large storage volume to capture spilled material and contaminated runoff water;the pond is not intended to serve as a stormwater detention facility to reduce peak flow discharge rates. The pond will include an impermeable liner,a low-level outlet pipe with a valve,and a high-level overflow pipe. Pond discharge will be westward into a vegetated area at the same location where the existing pond discharges. The containment pond can be operated with the valve in either the normally open or normally closed position. For example,if operated in the normally closed position, the pond will gradually fill with runoff water. At some water elevation before the water level reaches the overflow elevation,Olympic Pipeline staff will check for contaminants,and will then open the valve if there is no contamination. If the pond is operated with the valve normally open,runoff water will pass freely through the pond with no significant increase in water elevation. Company staff will close the valve if a leak or spill occurs to prevent contaminants and runoff from being released. Olympic Pipeline staff will be responsible for determining the most effective mode to operate the control valve, and for removing any contaminants that are trapped in the pond. South Drainage Area • Install additional drain pipes and catch basins that will tie into an existing drain pipe in the southeast corner of the site. The existing drain pipe discharges into a catch basin on the storm drain pipeline in.Lind Avenue SW. 12. Location of the proposal,including street address,if any,and section, township, and range;legal description; site plan;vicinity map; and topographical map,if reasonably available: Site address: 2319 Lind Avenue SW, Renton,WA. Site plan with topography and a vicinity map are attached. B. ENVIRONMENTAL ELEMENTS 1. Earth a. General description of the site (underline): flat,rolling,hilly, steep slopes,mountainous, other b. What is the steepest slope on the site (approximate percent slope)? The entire site is essentially flat(less than 1 percent slope),except for along the north and west sides of the site where the fill slopes are somewhat steeper. A00063\sepachecklist.doc 3 c. What general types of soils are found on the site (for example clay, sand, gravel,peat,muck)? Specify the classification of agricultural soils and note any prime farmland. Approximately ten feet of fill(consisting of silty sand with gravel)overlying alluvial sediments(consisting of loose silty sands and soft silts). There are no agricultural soils or prime farmland. d. Are there any surface indications or a history of unstable soils in the immediate vicinity? If so, describe. The is no evidence of unstable soils or slopes on the site. e. Describe the purpose,type, and approximate quantities of any filling or grading proposed. Indicate the source of the fill. Approximately 100 cubic yards of fill will be brought on site to create the embankment for the drainage containment pond. The top 12 inches of existing gravel material in the north part of the site will be temporarily removed and stockpiled on site while an impermeable liner material is installed; approximately 900 cubic yards of sand and drain rock will be brought on site as initial backfill over the liner;then approximately 900 cubic yards of stockpiled material will be reinstalled and 900 cubic yards will be hauled off site or wasted on site. f. Could erosion occur as a result of clearing,construction, or use? Erosion could occur during construction of the embankment for the stormwater containment pond. No land will be cleared. No erosion will occur as a result of using the new facilities. g. About what percent of the site will be covered with impervious surfaces after project construction (for example buildings or asphalt)? Under existing conditions approximately half of the site is covered by buildings and asphalt. Approximately 3200 square feet of new impervious surface will be created as a result of constructing two new concrete spill containment pads for tank truck loading and off loading. h. Describe the proposed measures to reduce or control erosion, or other impacts to the earth,if any. The owner intends to construct the project during the summer dry season,thus the chance or erosion caused by rainfall will be minimized. Filter fabric fences and/or hay bales will be installed adjacent to the area where the pond embankment is constructed. Netting and hydroseed will be immediately installed on the embankment. A00063\sepachecklist.doc 4 2. Air a. What types of emissions to the air would result from the proposal (e.g. dust, automobile,odors,industrial,wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities,if known. No air emissions will occur as a result of the project, except for exhaust emissions from construction equipment. b. Are there any off-site sources of emissions or odors that may affect your proposal? If so,generally describe. None c. Describe proposed measures to reduce or control emissions or other impacts to air,if any. None 3. Water a. Surface: 1. Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater,lakes, ponds, and wetlands)? If yes,describe type and provide names. If appropriate, state what stream or river it flows into. An unnamed drainage channel lies approximately 150 feet north of the north property line. The channel flows westward parallel to the property line and drains into Springbrook Creek. A wetlands exists on approximately the west half of the property(to the west of the project site boundary). 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 north boundary of the project site(the north property line)is within 200 feet of the unnamed drainage channel. An existing chainlink fence runs along the property line. All project work will be south of the fence. Project work will occur within 200 feet of the wetlands. There will be no work within 200 feet of Springbrook Creek. 3. Estimate the amount of fill and dredge material that could be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected.Indicate the source of fill materials. There will be no filling or dredging of material from surface water or wetland areas. A00063\sepachecklist.doc 5 4. Will the proposal require surface water withdrawals or diversion? Give general description,purpose, and approximate quantities,if known. No water diversions or withdrawals will be required. 5. Does the proposal lie within a 100 year flood plain? If so,note location on the site plan. The project area does not lie within the 100-year flood plain. However,the FEMA flood plain map indicates that a flood plain exists on the Olympic Pipeline property to the north and west of the project site(refer to project drawings). 6. Does the proposal involve discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. There will be no-discharge of waste materials to surface waters. b. Ground 1. Will ground water be withdrawn,or will water be discharged to ground water? Give general description,purpose, and approximate quantities if known. No ground water withdrawn; no water will be discharged to the aquifer. 2. Describe waste material that will be discharged into the ground from septic tanks or other sources,if any. Describe the general size of the system, the number of such systems,the number of houses to be served (if applicable), or the number of animals or humans the system(s) is expected to serve. None. c. Water Runoff(including storm water) 1. Describe the source of runoff(including storm water) and method of collection and disposal,if any(including quantities if known). Where will this water flow? Will this water flow into other waters? If so,describe. Refer to response in Item A-11, Project Description. 2. Could waste materials enter ground or surface waters? If so, generally describe. Under existing site conditions,petroleum products could enter ground or surface water as a results of leaks or spills. The project is intended to prevent such occurrences. A00063\sepechecklist.doc 6 d. Describe proposed measures to reduce or control surface,ground, and runoff water impacts,if any. Refer to response in Item A-11, Project Description. 4. Plants a. Types of vegetation found on site: Deciduous trees: None Evergreen trees: None Shrubs: None,except landscaping shrubs. Grass: Lawn areas adjacent to the buildings. Pasture: None Wet Soil Plants: black cottonwood,reed canary grass,red osier,dogwood, sitka willow,pacific willow Water Plants: b. What kind and amount of vegetation will be removed or altered? The location of the existing drainage pond on the west side of the site where the new drainage containment pond will be constructed,includes grass and various types of small plants. This vegetation will be removed to construct the new pond. The exterior pond embankment slope will then be seeded. The interior of the pond will not be revegetated in order to protect the liner. If required by City of Renton regulations,Olympic will revegetate other areas of the property to compensate for removing the existing pond vegetation. c. List threatened or endangered species or critical habitat known to be on or near the site. None. d. Describe proposed landscaping,use of native plants,or other measures to preserve or enhance vegetation on site. Refer to Item b above. 5. Animals a. Underline any birds and animals which have been observed on or near the site or are known to be on or near the site: None of the following animals are known to exist on the project site itself(i.e. the area within the existing fence line). Some of these animals probably exist in the undeveloped vegetated areas that lie immediately to the north and west of the project site. A00063\sepachecklist.doc 7 Invertebrates: shellfish,insects,other Fish: bass, salmon,trout,herring,other Amphibians: frogs, salamanders,other Reptiles: lizards, snakes,turtles,other Birds: hawks,heron,eagle,songbirds,ducks,other Mammals: deer,bear,elk,beaver,other b. List any threatened or endangered species or critical habitat near the site. None c. Is the site part of a migratory route? If so, explain. No. d. Proposed measures to preserve or enhance wildlife,if any. None 6. Energy and Natural Resources a. What kinds of energy(electric,natural gas,oil,wood, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating,manufacturing, etc. None b. Would the project affect the potential use of solar energy by adjacent properties? If so, explain. No c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts,if any. None 7. Environmental Health a. Are there any environmental health hazards,including exposure to toxic chemicals,risk of fire and explosion, spills, or hazardous waste that could occur as a result of this proposal? If so,describe. The proposed drainage improvements will not create any environmental hazards. Under existing site conditions,refined petroleum products are transmitted through the site via pipelines and are also stored in a 10,000 barrel steel tank. These A00063\sepachecklist.doe 8 products could leak or spill and create a hazard. The intent of the proposed drainage system improvements is to capture runoff water and contaminants in the containment pond. Contaminants would be removed from the pond by various procedures implemented by Olympic Pipeline staff. 1. Describe special emergency services that might be required. Olympic Pipe Line Company will have personnel on site monitoring the project. All underground utilities within the project area will be identified and marked as applicable. If an environmental hazard should occur, Olympic Pipe Line Company will follow the procedures as specified in the Olympic Pipe Line Company Field Document, and Spill Response Plan. These documents have been provided by Christopher Pope,the hazardous materials specialist for the City of Renton Fire Department,Fire Prevention Bureau. 2. Describe proposed measures to reduce or control environmental health hazards. See response to 1,above. b. Noise 1. What types of noise exist in the area which may affect your project (for example: traffic, equipment operation, other)? None 2. What types and levels of noise would be created by or associated with the project on a short-term or long-term basis (for example: traffic, construction, operation, other)? None 3. Describe proposed measures to reduce or control noise impacts,if any. Not applicable 8. Land and Shoreline Use a. What is the current use of the site adjacent to the properties? The current Comprehensive Plan designation for the project site and adjacent properties is Employment Area Valley. b. Has the site been used for agriculture? If so, describe. The site has not been used for agriculture. c. Describe any structures on the site. Office,maintenance, and storage buildings. A00063\sepachecklist.doc 9 d. Will any structures be demolished? If so,what? No structures will be demolished. e. What is the current zoning classification of the site? Zoning is Heavy Industrial(IH). f. What is the current comprehensive plan designation of the site? Employment Area Valley. g. If applicable,what is the current shoreline master program designation of the site? Not applicable h. Has any part of the site been classified as an"environmentally sensitive" area? If so, specify. The area immediately to the north and west of the project site has been designated a flood plain area. The City of Renton's seismic map shows the project site to be within a sensitive area. The project site is not within sensitive areas as shown on the City's Agricultural Protection, Steep Slopes,Erosion, Slide,or Coal Mine sensitive area maps. i. Approximately how many people would reside or work in the completed project? No change from existing conditions. j. Approximately how many people would the completed project displace? None. k. Describe proposed measures to avoid or reduce displacement impacts,if any. Not applicable. 1. Describe proposed measures to ensure the proposal is compatible with existing and projected land uses and plans,if any. Not applicable. 9. Housing a. Approximately how many units would be provided, if any?Indicate whether high,middle, or low-income housing. Not applicable. A00063\sepachecklist.doc 10 b. Approximately how many units,if any,would be eliminated? Indicate whether high,middle, or low-income housing. Not applicable. c. Describe proposed measures to reduce or control housing impacts,if any. Not applicable. 10. Aesthetics a. What is the tallest height of any of the proposed structure(s),not including antennas? What is the principal exterior building material(s) proposed? Not applicable. b. What views in the immediate vicinity would be altered or obstructed? Not applicable. c. Describe proposed measures to reduce aesthetic impacts,if any. Not applicable. 11. Light and Glare a. What type of light and glare will the proposal produce? What time of day would it mainly occur? None. b. Could light or glare from the finished project be a safety hazard or interfere with views? Not applicable. c. What existing off-site sources of light or glare may affect your proposal? None. d. Describe the proposed measures to reduce or control light and glare impacts,if any. Not applicable. 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? None. A00063\sepacheckliat.doe 11 b. Would the proposed project displace any existing recreational uses? If so, describe. No. c. Describe proposed measures to reduce or control impacts on recreation, including recreational opportunities to be provided by the project or applicant. Not applicable. 13. Historic and Cultural Preservation a. Are there any places or objects listed on or eligible for national, state, or local preservation registers known to be on or next to the site? If so, generally describe. None. b. Generally describe any landmarks or evidence of historic,archeological, scientific, or cultural importance known to be on or next to the site. None. c. Describe proposed measures to reduce or control impacts,if any. Not applicable. 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. The project site is currently accessed from Lind Avenue SE;no changes will be made. b. Is the site currently served by public transit? If not,what is the approximate distance to the nearest transit stop? Not applicable. c. How many parking spaces would the completed project have?How many would the project eliminate? No change from existing conditions. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets,not including driveways? If so,generally describe. None. A00063\sepacheeklist.doc 12 e. Will the project use (or occur in the immediate vicinity of)water,rail, or air transportation? If so, generally describe. No. f. How many vehicular trips per day would be generated by the completed project? If known,indicate when peak volumes would occur. No change from existing conditions. g. Describe proposed measures to reduce or control transportation impacts, if any. Not applicable. 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 explain. No. b. Describe proposed measures to reduce or control direct impacts on public services. Not applicable. 16. Utilities a. Underline utilities currently available at the site: Electricity, natural gas,water,refuse service,telephone,sanitary sewer,septic systems,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. No additional utilities are proposed as part of the project. C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: i . i�(. ,r@./77. 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Development Planning Section ' ' " " " • - - - 00 - 0(08 (y) WETLANDS STUDY Olympic Pipeline Company Renton Station Drainage Improvement Project Submitted to City of Renton Renton City Hall, 6th Floor 1055 South Grady Way Renton, Washington 98055 DoJeeN 19 May 2000 a 3 ' 005* Submitted by BERGER/ABAM Engineers Inc. 33301 Ninth Avenue South,Suite 300 Federal Way,Washington 98003-2600 Job No.A00063 TABLE OF CONTENTS SECTION PAGE 1.0 Introduction 1 2.0 Site Description 1 3.0 Project Development 1 4.0 Methodology 1 4.1 Wetland Definition 1 4.2 Wetland Delineation Requirements 4 4.3 Review of Existing Information 5 5.0 Wetland Investigation and Determination 7 5.1 Wetland Complex 7 5.2 Wetland Impacts 9 6.0 Wildlife 9 6.1 Wildlife Observations 9 6.2 Species of Concern 10 7.0 References 10 LIST OF TABLES 1 Wetland Indicator Status 2 City of Renton Sensitive Areas Overlay Wetlands Rating System LIST OF FIGURES 1 Vicinity Map 2 Site Map and Wetland Boundary APPENDIXES A Vegetation Found in Classified Wetland B Data Sheets 1.0 INTRODUCTION This report presents the findings of a wetland delineation performed by BERGER/ABAM Engineers Inc. (BERGER/ABAM)for the Olympic Pipeline Renton Station Drainage Improvement project. The project site is located in the City of Renton, Washington, south of Interstate 405(I-405)and west of Lind Avenue SW(Township 23N, Range 5E,west half of Section 30). A vicinity map is provided as Figure 1. The Olympic pipeline property is approximately 12 acres, although only the eastern most 6 acres are currently developed for industrial purposes. A map of the study area is provided as Figure 2. In compliance with federal and local wetland regulations for the City of Renton, BERGER/ABAM completed this study in order to determine the presence, extent, and characteristics of wetlands and their buffers in the study area. 2.0 SITE DESCRIPTION The project study and surrounding lands are used for commercial office parks,high-density residential communities and light-to-heavy industrial work .The project site is situated atop 10 feet of fill material(silty sand with gravel)that was placed on the property approximately 20 years ago. Springbrook Creek runs north and south approximately one-half mile directly west of the Olympic Pipeline Renton Station. An extensive wetland complex exists adjacent to the developed site 10 to 30 feet from the chain-link fencing that surrounds the industrial area. The project study area is generally flat, with elevated grades for the developed zone. Vegetation within the wetlands immediately adjacent to the developed area includes the following. ■ Scrub-shrub wetland areas dominated by willows, red-osier dogwood, and black cottonwood to the north of the site ■ Reed-canary grass edges and swales in areas lacking canopy 3.0 PROJECT DEVELOPMENT The proposed project involves improvements to the storm drainage system at the Olympic Pipeline Drainage Station. Pond improvements are intended to segregate runoff originating in the north part of the site that is subject to contamination from spills and leakage of petroleum products,and route that runoff to a containment pond. The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas adjacent to the site. 4.0 METHODOLOGY 4.1 Wetland Definition Wetlands are formally defined as"... those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas." (Environmental Laboratory, 1987). 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L. ., • �'li 4.ll f± --^ .•'. _:. _.,_____,-.!.:,'----:,—...,:yi.,7....7.-1 - ' 1'`�•,�`' 11 1'. ... t: 'l. :,. �I.iirg �'V FY t yf�,c?. y,.._._ --i • .,r .}., — f.., -+y�'�`[ll1�•,, L�: I�I` '.x` e .+✓.f.�-`: fir] �y %11-':I:. ;Y i. _�4i�,, ..}, A '.j4.1 , _ 1 1 I .. �^ II t �`,`.a ti4* ' ,,,1 tX- t:. .:{--'+II�.i::3FJ.:&- _y-5r, li;�-. r:ll. ,fit. ::x p� . it• : ^.'tit .j.. :.• r. Sy., �. ;t, _ i ;,n. % ., tti�t�T-y l�{•Jr�`c'�t'"•t:L.- r;:•1._ :...i-fr<., tl'.�,_,f . _.�..I,. �. ;i --- ., t r _ ., • • FIGURE 1 • 2 YR. FLOOD ELEVATION APPROX. EL. 13.0 PER CITY OF RENTON DATA 0 N in UNNAMED DRAINAGE CHANNEL > Q WETLAND U, o I / i Xr- X———7-— X R--- ( X to 9 ® XJ APPROX. 100 YEAR FLOOD PLAIN BOUNDARY 1 xI- ,.. .. . f_ ;+ x 4 ( iiAND l / ; 0 EXISTING CHAIN LINK )1 I w E 41 FENCE. PROJECT SITE /IX xi.: W 1 BOUNDARY AND LIMIT I ' '" e ���LO OF CONSTRUCTION AREA I O WILDING_E,:� / I z r- WETLAND BOUNDARY \ 7f 50, ,.., ,_,.., \ter o f 8 \\ o \� X.� X X X o \\i/ X _ 903.30 H I 100 0 100 20C FIGURE 2 , — — scale feet 4.2 Wetland Delineation Requirements The wetland delineation was conducted using the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987) (Corps manual) as required by the U.S.Army Corps of Engineers (USACE) and the City of Renton. In February 1997, the Washington State legislature adopted the Washington State Wetlands Identification and Delineation Manual(Ecology Manual) and require its use by local jurisdictions. This new manual is consistent with, although not identical to,the USACE manual. According to both manuals, an area must exhibit indicators of hydrophytic vegetation,hydric soils, and wetland hydrology to be considered a wetland. These criteria are mandatory and must all be met for an area to be identified as wetland, except under circumstances when a wetland is considered a disturbed area or problem wetland. These criteria are discussed below. Vegetation Hydrophytic vegetation is defined as macrophytic plant life growing in water, soil, or substrate that is periodically deficient in oxygen. For each plot,the percent areal coverage is estimated for each plant species present, and the dominant species are determined. Species are assigned a Wetland Indicator Status (Reed, 1988), which is based on the estimated probability of each plant species' occurrence in wetlands or nonwetland(see Table 1). Table 1. Wetland Indicator Status Wetland.I dicator" :Estiiiiated Probability of -%=S.tatus= Description 'Being Found in a Wetland OBL Obligate: species that almost always occur in >99% wetlands under natural conditions. FACW Facultative Wet: species that usually occur in 67%>99% wetlands but are occasionally found in nonwetlands. FAC Facultative: species that are equally likely to 34%>66% occur in wetlands or nonwetlands. FACU Facultative Upland: species that usually 1%>33% occur in nonwetlands but are occasionally found in wetlands. UPL Obligate Upland: species that almost always < 1% occur in nonwetlands under normal conditions. NL Not Listed: species that are not listed and are presumed to be upland species. NI No Indicator Status: species that have not yet been evaluated. (adapted from Reed,1988) The indicator status of the dominant species within each vegetative unit(tree, shrub,herb)is used to determine if the plant community of an area is characterized as hydrophytic. If 50 percent or greater of the dominant plants in a unit have an indicator status of OBL, FACW, or FAC,the vegetation is considered to be hydrophytic in both manuals. Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 4 19 May 2000 ' t Common plant names are used throughout this text. Scientific nomenclature of all plant species encountered follows that of Flora of the Pacific Northwest(Hitchcock and Cronquist, 1973). Where the taxonomic names of plant species have been changed since 1973,plant names follow the 1988 list of synonymies(Reed, 1988,revised 1993). Soils The King County Soil Survey(Snyder,D.E.,P.S. Gale, and R.F. Pringle, 1973) and Hydric Soils list (Soil Conservation Service, 1985)were consulted for the presence of mapped hydric soils within the project area. Soils were assessed in the field by examining soil for hydric indicators to a minimum depth of 18 inches with a soil auger. Soil characteristics examined include hue,value, and chroma, as identified on a Munsell soil color chart(Munsell Color, 1992). Hydric soil indicators include mottles, low soil chroma, gleying, and high organic content. Mottles are spots or blotches of contrasting color occurring within the soil matrix. Gleyed soils are predominantly neutral gray in color. Hydrology Wetland hydrology is defined as permanent or periodic inundation or soil saturation, to within 12 inches of the soil surface,for a significant period(usually a week or more) during the growing season (Environmental Laboratory, 1987). Where positive indicators of wetland hydrology are observed,it is assumed that wetland hydrology occurs for a significant period of the growing season. Direct indicators of wetland hydrology include areas of ponding or soil saturation. Indirect indicators include dry algae on bare soil, water marks on soil or leaves, drift lines, oxidized root channels associated with living roots and rhizomes, sediment deposits, and drainage patterns. Duration of inundation and/or soil saturation for the Ecology Manual is based on the number of days during the growing season that are at 32°F(0°C)or above. Wetlands in the Pacific Northwest area must have 26 days of continuous saturation or inundation within the growing season to meet the criteria for wetland hydrology. Within the study area, direct and indirect indicators of wetland hydrology were recorded on data sheets and described. Method The"routine on-site determination method" (Environmental Laboratory, 1987)was used to delineate wetlands within the study area. This method is used for areas equal to or less than 5 acres in size, or for larger areas with relatively homogeneous vegetative, soil, and hydrologic properties. A combination of field indicators,including vegetation, soils, and hydrology,were used to determine wetland edges. Sampling results for the three criteria were analyzed to make a wetland determination for each plot. Based on the results of plot determinations and visual observation of site characteristics, an overall assessment of the area was conducted and wetland boundaries were located. For all wetland plots identified, data for a corresponding upland plot was collected to confirm the edge of the wetland. Wetland Data Forms are included as Appendix B. Wetland boundaries were identified with sequentially numbered blaze-orange colored flagging. 4.3 Review of Existing Information Prior to conducting field evaluations, existing literature, maps, and other materials were reviewed to identify potential wetlands within the study area. This information included • City of Renton Wetland Inventory Maps(City of Renton, 1991) • Renton,Washington topographic quadrangle (USGS, 1994) • National Wetland Inventory Map, Renton quadrangle (USFWS, 1988) Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 5 19 May 2000 • Soil Survey of King County Area, Washington (Snyder et al., 1973) • Hydric Soils of the State of Washington(Natural Resources Conservation Service, 1985) • City of Renton Potential Wildlife Areas(City of Renton, 1998) • City of Renton Critical Areas Inventory (Jones and Stokes, 1991) City of Renton Wetland Inventory Maps The City of Renton Wetland Inventory Map (Jones and Stokes, 1991) and the City of Renton Critical Areas Inventory (Jones and Stokes, 1991), describe the wetland complex as follows. • Location: Township 23N, Section 30, Renton Quadrangle • Dominant species are willow, dogwood, and black cottonwood • High quality habitat; one of the highest quality wetlands in the City • Permanent wetland flow-through • Hydrologically connected to Springbrook Creek Priority Habitats and Species Data Base The Washington State Department of Wildlife (WDFW) Priority Habitats and Species(PHS) data base was examined for endangered,threatened,or sensitive wildlife species; species of concern; and priority habitats within the project area. The results of this investigation are discussed in Section 6.0. King County Soil Survey The Natural Resource Conservation Service(NRCS) (formerly known as the Soil Conservation Service), defines hydric soils as soils that are saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part of the soil profile (SCS, 1987). The NRCS,in cooperation with the National Technical Committee for Hydric Soils,has compiled lists of hydric soils of the United States (SCS, 1985; 1987). These lists identify soil series mapped by the NRCS that meet hydric soil criteria. The Soil Survey of King County Area, Washington(Soil Survey) maps Woodinville silt loam (map symbol—Wo) as the dominant soil within the study area. The Woodinville series consists of poorly drained soils that formed in alluvium on stream bottoms with a typical profile as a gray silt loam with layers of peaty muck extending from the surface to a depth of 38 inches. Permeability is moderately slow, runoff potential is slow, erosion hazard is slight, and flooding potential is severe unless flood protection is provided. Available water-holding capacity is high and there is a seasonally high-water table at or near the surface(Snyder et al., 1973). Woodinville silt loam is classified as a hydric soil (SCS, 1985; 1987). City of Renton Sensitive Areas Ordinance During the production of this report, proposed revisions to the Sensitive Areas Ordinance (SAO) were in discussion. These revisions would require wetland classifications and delineations to take place within 100 feet of the subject property(or,in this case,the fence surrounding the industrial zone) as opposed to previous regulations stating that classifications must take place within 25 feet of the property. The delineation and classification were performed according to the new ordinance and, therefore, wetlands were classified within 100 feet of the fenceline. Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 6 19 May 2000 5.0 WETLAND INVESTIGATION AND DETERMINATION A field survey to identify and delineate wetlands within the study area was conducted by Biologist Becky Gurshaw, of BERGER/ABAM. Observations of topography,vegetation, soils, and hydrology identified three wetland types within the study area: emergent, shrub-scrub, and forested. Data sheets for the wetland are provided in Appendix B. The wetlands found within the study area are shown in Figure 2. 5.1 Wetland Complex Vegetation The dominant vegetation species within the wetland include Sitka willow (Salix sitchensis, FACW), Pacific willow (Salix lucida spp. lasiandra), and black cottonwood(Populus balsamifera, FAC) in the tree layer. The shrub layer was dominated by red-osier dogwood(Corn us stolonifera, FACW+). Reed-canary grass(Phalaris arundinacea, FAWC+) dominates the herb layer. Based on a dominance of species rated facultative or wetter,vegetation in the wetland is considered hydrophytic. A complete list of vegetation found within the classified wetland is given in Appendix A. Soils The NRCS(Snyder et al., 1973) mapped soils within the wetland in the Oridia-Seattle-Woodinville association, specifically,Woodinville silt loams and silty clay loams. Soils generally were hydric at the toe of slope that was created from the industrial zone fill. The soils sampled in the wetland at 10 inches in depth within the A-horizon were olive brown(10YR 3/2) silty clay and silty clay loams with yellowish brown mottles and reddish mottles (10YR 5/6)from the surface to a depth of 18 inches. Grey gleyed(N5/) silty clay soils were observed below 18 inches in depth. These soils were considered hydric due to a low chroma with mottles within 10 inches of the surface. Hydrology The sources of hydrology to the wetland include a high groundwater table, Springbrook Creek, direct precipitation, and surfacewater runoff from adjacent areas. Soils sampled within the data plot were moist to 10 inches and,in several samples,water filled the soil pits to within 4 inches of the surface. Classification and Rating The City of Renton classifies wetlands according to the system developed by the U.S. Fish and Wildlife(USFWS). Wetlands are rated by the City of Renton according to three categories, as shown in Table 2. According to the wetland classification system established by the USFWS (Cowardin et al., 1979), which is the current federal standard for classifying wetland habitat,the wetland is classified as a "palustrine scrub-shrub/palustrine emergent/palustrine forested(PSS/PEM/PFO) wetland." This wetland would be classified as a Type 2 wetland by the City of Renton based on the following criteria. ■ it is estimated to be greater than 2,200 square feet in size ■ it is subject to minimal disturbance ■ it has a minimal open water component ■ it has no critical habitat for threatened/endangered species (City of Renton, 1997) Draft Wetlands Study BERGERJABAM,A00063 Olympic Pipeline Renton Station 7 19 May 2000 Table 2. City of Renton Sensitive Areas Overlay Wetlands Rating System Wetland Class ' ° Wetland Buffer Type 1 Wetlands: Those wetlands that are greater than 2,200 square 100 feet feet that meet one or more of the following criteria. a) The presence of species listed by the federal government or the State of Washington as endangered or threatened, or the presence of critical or outstanding actual habitat for those species b) Wetlands having 40 to 60 percent permanent open water(in dispersed patches or otherwise)with two or more classes of vegetation c) Wetlands equal to or greater than 10 acres in size and having three or more wetland classes, one of which is open water d) The presence of plant associations of infrequent occurrence; or at the geographic limits of their occurrence e) Wetland assigned the Unique/Outstanding No. 1 rating in the current King County Wetlands Inventory 1991 or thereafter amended Type 2 Wetlands: Those wetlands that are greater than 2,200 square 50 feet feet that meet one or more of the following criteria. a) Wetlands greater than 2,200 square feet that are not Category 1 or 3 wetlands b) Wetlands that have heron rookeries or raptor nesting trees,but are not Category 1 wetlands c) Wetlands of any size located at the headwaters of a watercourse,but are not Category 1 wetlands d) Wetlands assigned the Significant No. 2 rating in the current King County Wetlands Inventory 1991 or as thereafter amended e) Wetlands having minimum existing evidence of human related physical alteration such as diking, ditching,or channelization Type 3 Wetlands: Those wetlands greater than 5,000 square feet 25 feet which meet one or more of the following criteria. a) Wetlands that are severely disturbed. Severely disturbed wetlands are those that meet the following criteria. i) Are characterized by hydrologic isolation,human-related hydrologic alterations such as diking, ditching,channelization and/or outlet modification ii) Have soils alterations such as the presence of fill, soil removal and/or compaction of soils iii) May have altered vegetation b) Wetlands that are newly emerging. Newly emerging wetlands are i) Wetlands occurring at the top of fill materials ii) Characterized by emergent vegetation, low plant species richness, and used minimally by wildlife. These wetlands are usually found in areas such as the Green River Valley and Black River Drainage basin c) All other wetlands not classified as Category 1 or 2, such as smaller, high-quality wetlands (Chapter 18.45.020.C.,Renton Municipal Code,City of Renton, 1997) Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 8 19 May 2000 5.2 Wetland Impacts There will be no impacts to the wetlands as a result of constructing or operating the new drainage containment pond. There will be no direct construction impacts because the wetland boundary lies to the west of the existing project site fence; whereas, all construction work will occur on the east side of the fence. Indirect construction impacts, such as erosion and sedimentation, will be minimized by the use of best management practices,including.installation of filter fabric and/or hay bales along the fence line to form a physical blockage. There will be no change in the quantity of surfacewater runoff that flows from the project site to the wetlands. Under existing conditions, runoff water leaves the project site at three locations. Runoff from the north part of the site flows westward to an existing drainage pond at the northwest corner of the site. This pond discharges into the wetland. Runoff from most of the south part of the site flows westward to the existing pond on the west side of the site. This pond is the location of the proposed new containment pond and discharges to the wetlands. Runoff from the southeast part of the site is collected in a small pipeline that discharges into the City's existing drainage pipeline along Lind Avenue. Under the proposed drainage system, runoff from the north part of the site will be collected in a pipeline and routed to the new drainage containment pond on the west side of the site. Thus the point of discharge into the wetland for runoff originating from the north part of the site will be shifted a short distance from the northwest corner of the site to the west side of the site via the new containment pond. However, the total quantity of runoff water that flows into the wetland(i.e., the hydrologic connection)will not change from the existing condition to the new condition. Flow routes for runoff that originate from the south part of the site will not change;that is, part of the runoff will continue to flow eastward into the Lind Avenue pipeline, and part will continue to flow westward into the wetland. SAO wetland regulations state that Category 2 wetlands must have a 50-foot buffer. Some pond improvement activities would occur within that zone. Subsequent mitigation is contingent upon the City of Renton's determination as to whether or not the improvement activities within the buffer zone require or necessitate some form of mitigation. 6.0 WILDLIFE 6.1 Wildlife Observations The City of Renton Potential Wildlife Areas map indicated that forested and wetland habitat exist on the project site. These habitats contain mixed vegetation types, including emergent wetland swales, shrub-scrub wetlands and forested wetland areas dominated primarily by deciduous trees. Potential wildlife species that may occur in the area include: deer,raccoon, skunk, voles,water shrews, song sparrow,American robin,willow flycatcher, northwestern salamander, Pacific chorus frog, and common garter snake. Actual wildlife observed or heard during the site investigations included common yellowthroat, willow flycatcher, killdeer,American goldfinch, red-winged blackbird, gray squirrel, and a species of snail(Mollusca). Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 9 19 May 2000 ' I 6.2 Species of Concern Species of concern include those classified by the WDFW(1998) as endangered, threatened, sensitive, candidate,or monitor species. Colonies of the great blue heron(Ardea herodias), a state-monitored species, are known to occur within 2 miles of the study site in the vicinity of Springbrook Springs and the Black River Corporate park. Great blue herons feed on aquatic and marine animals found in shallow water, as well as mice and voles found in upland fields. Great blue herons may use the wetland's hydrologic source, Springbrook Creek,for foraging. It does not appear that they use the area for nesting and, therefore, the project in not likely to adversely affect the species. A bald eagle(Haliaeetus leucocephalus) nest is located on Mercer Island, north of the study area. Bald eagle prey on species, including anadromous and warmwater fish, small mammals, carrion, and waterfowl. Bald eagles may forage in Springbrook Creek,but are unlikely to use the project area wetlands. Coho salmon(Oncorhynchus kisutch), a candidate for listing in the Puget Sound area by the National Marine Fisheries Service, may occur within Springbrook Creek(E.Higgins, City of Renton 15 May 2000 Pers. Comm.). Since there will be no impact to wetlands as a result of this project, it is not likely that the coho salmon will be adversely affected. 7.0 REFERENCES Cowardin,L.M.,V. Carter, F.C. Golet, and E.T.LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States.U.S. Fish and Wildlife Service. Publ.#FWS/OBS- 79/31. 131 p. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1,US Army Engineer Waterways Experiment Station,Vicksburg,MS. Federal Interagency Committee for Wetland Delineation. 1989. Federal Manual for Identifying and Delineating Jurisdictional Wetlands.U.S.Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S. Soil Conservation Service, Washington,D.C. Cooperative technical publication. 76 pp.plus appendices. Higgins, E. 15 May 2000. Personal Communication between Elizabeth River Higgins, senior planner with the City of Renton, and Becky Gurshaw,biologist with BERGER/ABAM Engineers Inc. Hitchcock, C.L., and A. Cronquist. 1973. Flora of the Pacific Northwest.Univ. of Washington Press, Seattle. Jones& Stokes, Inc. 1991. City of Renton Critical Areas Inventory. Prepared for the City of Renton. Seattle,WA. Munsell Color. 1988. Munsell Soil Color Charts.Kollmorgen Instruments Corp., Baltimore,MD. Reed,P.B.,Jr. 1988. National List of Plant Species that Occur in Wetlands:National Summary. U.S. Fish and Wildlife Service,Washington,D.C. Biol. Rpt. 88(24). 244 p. City of Renton. 1998. City of Renton Potential Wildlife Areas. Renton,Washington. City of Renton. 1998. Title IV, City of Renton Building Regulations. Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 10 19 May 2000 Snyder,D.E., P.S. Gale, and R.F. Pringle. 1973. Soil Survey of King County Area, Washington. U.S. Soil Conservation Service,Washington, D.C. Soil Conservation Service. 1985. Hydric Soils of the State of Washington. U.S. Department of Agriculture, Soil Conservation Service, Washington,D.C. Soil Conservation Service. 1987. Hydric Soils of the United States. In cooperation with the National Technical committee for Hydric Soils. U.S. Soil Conservation Service,Washington, D.C. Washington Department of Ecology. 1997. Washington State Wetlands Identification and Delineation Manual. Publication#96-94. Washington State Department of Ecology. Olympia, Washington. Washington Department of Fish and Wildlife. 1998. Priority Habitats and Species Database. Olympia,Washington. Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station 11 19 May 2000 APPENDIX A Vegetation Found in Classified Wetland Appendix A Vegetation Found in Classified Wetland Common Name Scientific Name Wetland Indicator Status trees Sitka willow Salix sitchensis FACW Pacific willow Salix lucida spp. lasiandra FACW+ red alder Alnus rubra FAC black cottonwood Populus balsamifera FAC shrubs red-osier dogwood Cornus stolonifera FACW+ red elderberry Sambucus racemosa FACU Himalayan blackberry Rub us discolor FACU herbs reed-canary grass Phalaris arundinacea FACW+ lady fern Athyrium filix-femina FAC stinging nettles Urtica dioica FAC+ bluegrass Poa spp. NL creeping buttercup Ranunculus repens FACW red clover Trifolium pratense FACU Draft Wetlands Study BERGER/ABAM,A00063 Olympic Pipeline Renton Station A-1 19 May 2000 APPENDIX B Data Sheets DATA FORM 1 WETLAND DETERMINATION Applicant ''� Application Project Name: D(y�RL� (-!'p26;le, Number: Name: /leap& 5 State: (V A County: VIJ Ki Legal Description: Township:c22WRange: 5 Date: c /to -Oro Plot No.: Section: J O Vegetation [list the three dominant species in each vegetation layer (5 if only 1 or 2 layers)]. Indicate species with observed morphological or known physiological adaptations with an asterisk. Indicator Indicator Species Status Species Status Trees �A G Herbs t` L5r�.ss r�4�-1J �' 1. 0,,c,k. c.o64onNraoxcf �. eruct - ca.�ar7 2.5,'�-lest �.J-i 1 I.otia Fi4 c-� 8. rf+ca� f�0 i'cc_ h�4C-t Gi PC- t4 r 6LOuJ FACW1 f!1 �f:1"trt.� 3. 9. Saplings/shrubs Woody vines 4. fad -04a1`Q+e. dc�wtIbc/ J* 10. 5. 11. 6. 12. 2 of species that are OBL. FACW/and/or FAC: leg Other indicators: . Hydrophytic vegetation: Yes I No Basis: 7 S V 07p oat, ?%A ).PA G Soil Series and phase• �C10�`n ri Le On hydric soils list? Yes ; No Mottled: Yes TJ ; No Mottle color: 'Ye �/19; Matrix color: la`( /1 .4 /b`(2 v/L Gleyed: Yes J No� Other indicators: i¢[S Hydric soils: Yes V '�No •; Basis: L-O W etriAl • Hydrology Al"V7 Inundated: Yes ; No� Saturated soils: Yes _ ; No Depth to saturated soil: •"' �� 2 Other indicators: TI1to S t' .ALd ( ,, , Qr- (e neg 611. -4$ Wetland hydrology: Yes ; No / Basis: . Atypical situation: Yes ; Normal Circumstances? Yes ul No . Wetland Determination: Wetland ✓ ; Nonwetland . Comments: Determined by: G I:4,cr��� B2 • d0 - oo8 ( J DRAINAGE REPORT Olympic Pipeline Company Renton, Washington Renton Station—Drainage Improvement Project Prepared for City of Renton Conditional Use Permit Application 26 May 2000 P1 R�.miNG OF BEN-1.°id tAPN 3 CI 2 B, F( �1r' was ?r' R ' O +v J rto, Submitted bye 2. 2492 ����� GIS 1EK� BERGER/ABAM Engineers Inc. JONAL 6N ,. 0 33301 Ninth Avenue South,Suite 300 Federal Way,Washington 98003-2600 Eg i15/ 00 2, ` Job No.A00063 PROJECT SUMMARY The project involves new facilities and other improvements to the storm drainage system at the Olympic Pipeline Renton Station. Refer to the attached project drawings. The total Olympic Pipeline property is about 12 acres, as shown on the site map on Drawing T-1. However,the project construction site is limited to approximately 6 acres of the eastern part of the property. The project site is on fill material that was placed on the property approximately 20 years ago. The intent of the drainage improvements is to segregate runoff originating in the north part of the site that is subject to contamination from spills and leakage of petroleum products,and route that runoff to a containment pond(refer to Drawing C-1). The objective is to prevent petroleum products and contaminated runoff water from infiltrating the site subsurface soils and from reaching a drainage channel and undeveloped vegetated areas adjacent to the site. No additional buildings or parking areas are proposed as part of the project. Existing Conditions Approximately the south half of the project site consists of administrative buildings, along with asphalt and crushed rock parking areas. The north portion of the site consists of pipelines,pumps, and other hydraulic equipment designed to handle refined petroleum products and other materials. Runoff from most of the south part of the site is collected in small diameter pipelines that are routed to a drainage pipeline along Lind Avenue SW. The Lind pipeline runs northward approximately 100 yards where it discharges into an unnamed drainage channel that flows westward to Springbrook Creek. Some of the runoff from the south part of the site flows overland westward to an existing drainage pond(Drainage Pond 2 as shown on Drawing C-1). Runoff from the north part of the site is generally in the form of surface flow and then small pipelines that run westward to a small drainage pond at the northwest corner of the site(Drainage Pond 1 as shown on Drawing C-1). Both of the existing ponds have a small storage capacity and no outlet control. Proposed Project The proposed improvements to the drainage system include the following(refer to Drawing C-1). • Create a defined grade break(with a low asphalt ridge)to segregate surfacewater runoff that originates from the north part of the site from the runoff that originates in the south part of the site. In effect,two separate(north and south)drainage areas will be created. North Drainage Area • Install drain pipes and catch basins;route the pipes to an oil-water separator, and then to a new stormwater containment pond located on the west side of the site(at the location of the existing Pond 2). • Install concrete spill containment pads that are connected to the drainage pipeline. One pad will be used for parking tanker trucks during the loading of petroleum products. Another pad will be used for parking tanker trucks during unloading of chemicals that are injected into the petroleum pipelines. Miscellaneous small containment pads will be located at pumps, scraper, and the launcher/receiver doors. A valve will be installed on the drain line from each of the pads. The valves will normally be in a closed position to prevent any spilled material from entering the drainage system. Upon inspection by Olympic Pipeline operations staff to assure that no contaminants are in the containment pads,the valves will be periodically opened to release captured rain water to the drainage system. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 1 26 May 2000 . et "" 1"..,:j Ellij.' glin I • lik Jr . ,I . o> ik, � � 47.0 0 _. ,,. t` 7 AlrA Gm- :0 Ill.::!" 1 J _ . ., -4 0' , \....,o iiii o) °� ; ► -.4114 ‘ tt.V.- :.;44 r‘il II v/ Oi N \,, ) _. 05-�1 Oly �V �4 mpie • . • . . .. . +,k, `r .tk.,..0.,0 sA) 4,02 0, * . Iiiiik PIPE LINE 4 COM PAN Y -••r-i-^E: ?y.`:""z:•w ‘ft,':,ek;:"41,:,: .l< .;-.:; .,,t...,is i ,,:i:.;st .r>.:;a,•.. ,, .:< ,-, . • ;{,<, si:>;F" Na"r. i v :. R,FLOOD ELEVATION :cY < trM:#'€.1'.:` A:�,;:tym[dr .::{:'r;.; '[" j.`.iY lyx:'. .•Li.:V :['`"�✓> I';: "„"' aAPPROX.EL.13.0 PER #_ :.t:;. dz...f;.: §;i;I-t‘ %i.:.. £..................... �"<ry ,:,y :.;' CITY OF RENTON DATA 5+,�: :f'. "s.ay€� :'iss'; r' s.e i '>"s%:°-'r� 'Sis'<at+�"f ,-.:.fi^",:>'i:SS; rOt In .fY f! ,.5:'i .e" .'£'.r <A€:`E''.f:, =4:".: .: +: * •S O v� M: k<i: • �.7,A '35gq. .:<;:`:.<' :i.i.,.< €:�:, rg J;- ;;>y`E y-;.?+:?"k+,">,z�r,';"> \ =s .. ;:,.;:_;d #,r.>.<z-...,:: z .<. UNNAMED a� 4 ..- € V-?.. a;—:' ,.tA _.,_ DRAINAGE CHANNEL rY :.. �_> >: .:4 .<:f:4 .0 !11: > :-g,•,s::... {e},,; ; �... 3 ..;; PROJECT a 0..-;N t:r•iy ••. " ' g :.,,'" : ">:f {€:fs .:. SITE a a s w .•• ;,:y.: ':: ?':,. ri 4, ,7=a:: r::.:,jj p� .>'k:::>,.`a.r.s,a WETLAND '. ". i'a""' yri I. r'it:s r.i ' :u-`ii".r:..i�.w,.f .:�F^fix>•.%'> :.'.i�>i.t:i..: DES . 5#a`; " >Ns. .:F .: a;:"C>.:>..;`' ' :.: RENTON• .:M: / f, �•fI X1.�I MOINE y's.s is:, <:w,zt.:' . ;i::: :a:. ��;':"<ia r rA f,.; :;m" .:I ; WETLAND 'Y» :fn iv' cl ..ry.TJ • Y.s ii :, .�N:JJ �,ji t�-y�<V. . 't rf.a:t'.».:":,s...:..:.:.:..,.::.-L..;...',Y.:., "\.a�:2 1 _! y< EXISTING CHAIN LINK o ) Lz's,.'..f;. :S a:: :.a,( 3<�£ .'. L FENCEPROJECT SITE J ;ua. - TLii r.:. I BOUNDARY AND LIMIT \1. x :t . <;. :, DRAWING INDEX .: V:q :,t<::: ".3y,sra OF CONSTRUCTION AREA as it s.�i's"r•....,..:,i.:-',Y`..... a.'. ,r.i :..:.: . ram.-3>--- :E<;...i",P.:`.'r>" 1' ., ;#.,.:a{. :...tt.I a :,. ': "..�''- ...'i. • .E.'•.' yi S:M_ir"f':i'.`''ik�.({.i,i-::�{•;,.,,:.L...a: ..a;:,n:; DWG No. DRAWING TITLE SHT No. AUTOCAD FILE No. ' _ -1.- :'>'' 'n` >^ 1j" a GENERAL DRAWINGS • ir .s..r'� ;<". •,,;.;: WETLAND BOUNDARY ,A,..;::•. -•.. sift{i g,:5 f ::: �'S �.>n:^ ..: ":;g:.'I .`'..�:z_(Yc:�3 1 ,�! f � .1pp:;: ;; '`: - :• � ;;yw' t T 01 TITLE SHEET. VICINITY MAP, DRAWING LIST • g , . : . <€. •;..:; >,:,: t': ,:>ynr .. G-01 GENERAL NOTES, EROSION CONTROL NOTES, TECHNICAL SPECS , 8 in ^,; �4Y ", f:. .1 .it:sy2'�'`i;::CA.s f. �T;'::,iA — u 4,,.i:`$:>`', ti.'\':: r`. ::#` ..>..:,.,:s>:;.;, ir "?.>. 'f< C 01 SITE PLAN o r>;az. Y.:: ,i 5 :,�:;:'0C':-:;" €'1-` . ,,..::,,;^rt:; rT:,..r, : '';''1. . > FLOODAPPROX.100 YEAR + t?•:: `>r fr I' < }:�n C-02 DETAIL SHEET \ .. f:i" 'I 5i..:7.::;t;l;.:..1: .• az 5,:;u W..,•i;. ' �:%':r` :::;:1"r: t: FLOOD PLAIN BOUNDARY x� x x_ r't..::..." ".ckr:::::: ,,.�IB7, .:_..j: ¢.�-, ::F<^.£. .F�: ::fi,s.. C-03 DETAIL SHEET _� - z:.,.. a : :::i'.':7 y .r,$:..k.:.. 1' .,>.. 903.30' >t :.z^3'#. is , It', .£ • _ .,:.: b 3Y:;�•-:...,r.;�.". :.f::�.��. i.s fuss�i•,.'i (3.;,5:°: : -;:€��` ; �:..�:#>,k:o`:'.{.t._tt..,.<..a"5�:,>3i:;:,,"*•. '::;.:..<. '.^�.p`t:.:;<:)<x�:•:.5�,:.,..s{.,,..t.. ' ->_:: 5-01 STRUCTURAL DETAILS cD S -- &i.F": wE#'-.� 3 #«5x47:;,,;: .N> y<Y':'lI sy':5:,: >`i.�&xi,t0 .,) t,.i)E ':2::::::>:._.I ' .........I 't7 : € VICINITY MAP SITE MAP HORIZONTAL DATUM: ENGINEER tra• p OLYMPIC PIPE LINE COMP rc 2319 Lind Avenue S.W. ;:>`" 33301 9TH AVENUE SOUTH - VERTICAL DATUM: DRAFTER Renton, Washington FEDERAL WAY,WASHINGTON ENGINEERING TITLE SHEET BERGER/ABAM 98003-2600 NOTE BOOKS: CHECK RENTON STATION E N:G I N E E N S I N C. VOICE:(206)431-2300 DRAFTING FAX: (206)431-2250 NO. REVISION BY CHECKED APPROVED CHECK DRAINAGE IMPROVEMENT PROJECT THIS DRAWING AND ALL INFORMATION THEREON IS THE PROPERTY OF OLYMPIC PIPE LINE COMPANY AND SHALL AFE NO'S: APPROVED DATE M.P. STA. TO M.P. STA. NOT RE COPIED OR USED EXCEPT FOR THE PURPOSE FOR WHICH IT IS EXPRESSLY FURNISHED.THE DRAWING SCALE: DRAWING NO, 1 OF 6 REFERENCE DRAWINGS AND ANY COPIES THEREOF (PARTIAL OR COMPLETE) SHALL BE RETURNED TO THE OWNER ON DEMAND. NONE T-1 Cost Seed on Thu May 25 2000 of J:2Jpm by d ch, File Name.:a\2000IA0006JICA00IdwgsITl-cmcrsheeLdwg Scde I GENERAL NOTES • ' TEMPORARY EROSION CONTROL PLAN CONTRACTOR SHALL COORDINATE WITH OLYMPIC PIPELINE FOR -.CONTRACTOR TO IMPLEMENT TEMPORARY EROSION CONTROL PROCEDURES ALL WORK REGARDING THE EXISTING EQUIPMENT ON THE SITE. AS PER THE CITY OF RENTON STANDARD PLANS AND SPECIFICATIONS, • INCLUDING THE KING COUNTY SURFACE WATER DESIGN MANUAL. CONTRACTOR SHALL BE RESPONSIBLE FOR ASSURING ALL WORK - IS DONE TO THE LOCATION, GRADES AND ELEVATIONS CALLED CONTRACTOR SHALL MAINTAIN EROSION CONTROL PRACTICES THROUGHOUT FOR IN THE PLANS. THE CONTRACTOR SHALL PROVIDE THE THE DURATION OF CONSTRUCTION. ENGINEER WITH AS—BUILT SURVEY DATA FOR ALL WORK. ALL CONSTRUCTION WILL BE WITHIN THE EXISTING CHAIN LINK FENCE TO BE COMPLETED AROUND THE PROJECT SITE. CONTRACTOR SHALL INSTALL FILTER FABRIC OR HAY BALES ALONG THE NORTH AND WEST SIDES OF THE PROJECT SITE. MATTING AND SEEDING WILL BE PLACED ON THE NEW DRAINAGE CONTAINMENT POND EMBANKMENT IMMEDIATELY FOLLOWING CONSTRUCTION. • DURING THE INSTALLATION OF THE IMPERMEABLE LINER THERE WILL BE A NEED TO STOCKPILE MATERIAL AT THE SITE DESIGNATED ON THE PLANS. THE TEMPORARY STOCKPILES WILL BE COVERED WITH PLASTIC TARPS AS NECESSARY TO PREVENT ANY EROSION AND RUNOFF. DURING CONSTRUCTION THE CONTRACTOR SHALL PERFORM ANY SURFACE STABILIZATION, STREET SWEEPING, OR OTHER MEASURES AS NECESSARY. THE CONTRACTOR SHALL ROUTE OR PUMP ANY SEDIMENT LADEN RUNOFF WATER TO THE DRAINAGE CONTAINMENT POND OR TO THE EXISTING POND LOCATION AT THE NORTHWEST CORNER OF THE SITE. THE CONTRACTOR SHALL APPLY ALL APPLICABLE DUST CONTROL MEASURES, SUCH AS SPRAYING WITH WATER, AS NECESSARY. CONSTRUCTION NOTES TECHNICAL SPECIFICATIONS TO BE COMPLETED STANDARD SPECIFICATIONS SHALL BE: 1998 STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION, WSDOT, DIVISIONS 2 THROUGH 9. CITY OF RENTON STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION. KING COUNTY SURFACE WATER DESIGN MANUAL. CATCH BASINS PVC DRAIN PIPE(8 INCH) SHALL BE SDR 35 OR THICKER AND SHALL CONFORM TO ASTM D 3034, WITH INTEGRAL BELL GASKETED JOINTS. PERFORATED PVC (4 INCH) VALVES GEOTEXTILE FOR LINER APPLICATION MATERIAL FOR LINER APPLICATION POND EMBANKMENT MATERIAL CONCRETE ASPHALT TO BE COMPLETED HORIZONTAL DATUM: ENGINEER 01n t OLYMPIC PIPE LINE COMP 2319 Lind Avenue S.W. "" 33301 9TH AVENUE SOUTH _ VERTICAL DATUM: DRAFTER Renton. Washington • FEDERAL WAY,WASHINGTON - ENGINEERING GENERAL NOTES BERGER/ARAM 98003-2600 NOTE BOOKS: CHECK RENTON STATION E N;G I N E E N S I N G. VOICE:(206)431-2300 DRAFTING FAX: (206)431-2250 NO. REVISION BY CHECKED APPROVED CHECK DRAINAGE IMPROVEMENT PROJECT This DRAWING AND ALL INFORMATION THEREON IS THE PROPERTY OF OLYMPIC PIPE LINE COMPANY AND SHALL AFE NO'S: APPROVED DATE M.P. STA. TO M.P. STA. ^' " sl NOT BE COPIED OR USED EXCEPT FOR THE PURPOSE FOR WHICH R IS EXPRESSLY FURNISHED.THE DRAWING SCALE: DRAWING NO. 2 OF 6 REFERENCE DRAWINGS AND ANY COPIES THEREOF (PARTIAL OR COMPLETE) SHALL BE RETURNED TO THE OWNER ON DEMAND. NONE G-1 - • ............-......LL......-.......--. - .............,..........,.................,-,.......,,............,...........,-,..........--.....-•••• . - ,--, - VALVE . , - • i , (NORMALLY CLOSED) SPILL CONTAINMENT DRAINS! SEE •............,,.......„ • ...... DETAIL Q. TYP §.LOCATIONS : ,. ----------___-- • ' E:.f.i:•••iiN(... E.F11:iN..%Gi5: F•••;)mC ..i:E1 -,,, /%-• -- / - --- •2::::.IT..._.......... ---......_ z--iVETLAND BOUNDARY ./ ,.•••••••;::.!':•:::::;•..:',F:Cr.•: FlCV:::1 71,:' __....-- -- ..,.........., ---- BURIED IMPERVIOUS LINER .„:,:.,..::.•••••••:•.: " •) !E•.:,'...4::.:.• E•i':','::N.,..C:: Cii:::11.1a. .... / ."-'1:%:: / . ...">: . ...... • ..;. ....--".'; ./..V.:7:q q cz ;4- , ,., .,.... . , .,.- : , . . . . . ..,.,. , --1 ',--...,.. :.:•?: ...:::. :.:...... • ,3 4' PERFORATED DRAIN PIPE PROPERTY LINE ; - kil•A?I'lAC -.'',-`',:s.;': -•-•• ••,.. -•' ••• - • '...:•-•.••>."-1-... ' i .4rAr Ar, j4i'j.iid, 401 4 •• v..' , ../ ••••••••••••,:. 3 , :. •,Ak:( .8f50,-- ;.5...:...: 1Ve'd.r4cRI-pArI'AR0 ..t: -,.:1:- ,. T •- E). e,..-50----- -•••• / ,.r G.Itr Ar# :.:,,,,..... --,•! •:.-- ••• 1 .eiro - ••:•.,.0 . ::". SI/--- :...-.:;:..-.......:-........::::,-- ...................f.okiii;o:,,•.,,, i . -............... :-.,1.;.:-.4fp;4901-4FA- / ("00 fr k Al / a-' ,f.•'-',.. ' ! ..ii. / • -- - - - • • . „ .... ... . , . 'i 1 i.....FK>i•il K.,il WP,Y ( .:,•.................... -.:,...;,;• .4.1z dr, '... . .• eit, r 1.15*.• --.... --, --....•::'..etr'. ..... .:. CB i ' .1 ".• RIM EL. 2.1:7 \ . „ \ 1 "-- A"''( e jr,el-•11: APZ-. • ,•,-.. .; .--v 100 AO ,.- i.i.s--:. .,. •I.; ,./ •I<4. \ r :: : 4or .•:".•••••-,, ....:::;:. ..‘,..„.... - fR ' 2060' Al4 ;C9i.ri 4' r.:) ' -,.. k : .,-HP1-..1.); Ii.. ..;'' \ i! II)f:1;': ...::::::....--:.•:..-.:-':-*: :. .. .:.;:::.1)''•:',:,. !:::.' : / &.1 ::: ,...:r.,1,I•ie•If.• I ) : \ NI i : ! ;••••••'•: ...I.:..I'!1i II 1 i / ;; ::::::'...•.'''''''''''''"'''"'''''"'''''',1 . ..........-•i 1 . : : .I,, • .' '' • : IMPERMEABLE LINER , .. . . . . .. . ,,.. . • '• • ••••'• : :.: :-...:, . .,.. . . . , . . .. . • •••••,7r: .: IN CONTAINMENT AREA I ' ill i)i;,• , •-• ••• • NW •:::',: .... ::./P•::1'-"; .:.:•. i .•••`:: .. , . . ItiE '!: :. :!: ii i ir.. I--.:i. ;'••;:. ::... :•..:.':...:' '.:: . a.u.,. . f ,..• ,, . • „.-r .• . ... . ...... .. . • t-4 EX. 10 000 BBLS CA"ACITY i i UP;1::ii. •:.• ' ... •.. GASOLINE/DIESEL TANK :,,F ,... , :i fii ...,i.,..4,:.,..:''............................................1...,2, -...,,.....,...:... . •":...........,;ii ,,...!.....:c9R:7174112Eil../..,..)20..:T.::...E. ..1:.....,..:,::::-.. .r...,..c..:)...E,.....i.,..L.... Z . .;g ': ;:' ::',. ....• . • .: : i)SI(NEY 18.49 •.., : :: • . •. 1 • .;:.. .....:::::: ...' .•. I.; :::.•.''...i?ij," li EXISTING SPILL CONTAINMENT BERM •.•• :ir,i, • ••• • . ..,. Ti I b 8E; ''''''''' 1 cn .. .::..::• . • IF OUT(SW) 18.49 - •.......1 * •••••• .. f.; :.i ina , ,, i psi 11;: -s.,::. NO9H DRAINAGE AkA .,..:"•-•,,,01 T / :1 i H" 4.:: .rai 0 • :I.:I!iSlil '; ./ I -0,4. ::. •:,: • -.3' PAVEMENT REMOVAL i ••• ..011 .'..:.*:::*••••..•CA:':''' . ..!/ AIX ! *.'••,.::,, •I:i;:]i AI -.•.= i , : j.,I - . .--) 3 \•.... >. ,..- ....:.-.. 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" 3 .„ - • F ":CB 7 '..• ' ,k-,•'=•:--., 1 .404'`:' ... ii• r.• .•<.: 'y-z• I ,•:•• W...4.,.. .....,. ‘' :: 13:' IM EL. 21.5 '' •• • '• L iiv.' : -:.: ..•.;;'..•••:/7,',••'"k:::1'•)•:-;.•••'•'.-:7' .:': 1 v... i , , .....z."- :::..:i,..:.;.ia; !:.5,.... ..,,,.3.i:: i'.'cl,Ni) P.----.....................-.....-...I \I I lig 11 firrylsoti$0,;:") \!E.15.re;:•4;•-::4•Sf.;:,I. IE OUT(S) 19.8 • ' •:. :•':--;•••;(-;•-•.• 1 `•••'•:•••:.'''''''•• '''' 1 i k&A.4:1\ : b=-1 ',..' ' -....• •••-' ''). „ ..; i ,/ ./•••••=. i. •• •.::, .... .........F.V.:;Ti':k; Ni:::;•114::.:: •- (,.;Ts; ,1'.. 1......N.;',...•,k.; ,_ „ i.,:.„....4... ,::.......,.:;:.:..,;:::::;,...z....,..„. „...!...,v.... -.. ....„.., -,. ..: ,.... •oti,ti,, .,v ip .. i ....::::.••• .•-•-....:•.-..:,2,.: L.,.. ,,-.•;:::::,.....-:::.,-,,,-......,i -: - --1--i•.::i ...• ''•-... ,: .... ' ' MH 2 i 1 trtAr.-1-'-';',- #4440:'' . t$43/4gwzitrA"..721 '',• ... 0-U- IK1 .... ••• , t\14044,:22.2:0M,r‘r4l,/4r, '• '.'.•'"..,,........•• Vr'.'"4;'11 -.E4 2 l': / ' :i F•i '•...., to si• II ,II -...1 •.-0 . v.. ., , . ,. ;••'.4 • .. i i 1 Flj '... • ...2,::''z/' i.,•. ..:rne e:,.i.: ;::•1.1W;'. \ ' :!." t.......__.f..:.4 Br 0'AN 1.--.___._:__......__.........4.1f4 ri'. '/.'"''•4 '\ N II •.'' , , •.... 141 -;,1:i' E f:::': .?..i ;:;::1:.ii..; Pii.::::i..1E: i.- , \ -th , v • '' s'• •,..,•; ::= ....„ i1 .... ......:: •.4 .:/,‘ ........ .:,.: , , .,.. , .... . :. .. ... .:: POND \ Ntsitr`WN AN CE.‘ ! •'... ''.. ':. , . '"• ri•-•.....ii.,.. - # DISCHARGE •, Ilk • A ESS•••RAMP : •; .. • ... ...;-.,"' _...Y: i! '" \ i cj.: .\ 'I '''''''. '' -.....":'.... ..---.:•-..--;::=V ;..„. :, ....... toy.... • c: "---.- ...--. .... .:• '41\ '''- `,.. .,'"?.". ?.:" :'..:1j..1 , . : EXISTING CHAIN LINK ) •••••• .. . • : - ..,...„,-.......,.......,..,...:........ ....` %.:•::•••:• ..:::::::':- A.;;...••• ..,..„. !...,, •.••••.., :• '''•••,........(RS-::•.'FENCE PROJECT SITE i .. %. .,••'• 1:1•••• , (.•::i • . OF BOUNDARY AND LIMIT __________----%\ f •• •I ' •:;,. ;••••...., ..• i.",-,.,. .: .. • i!I' 275 F 8" PVC '3.CONSTRUCTION AREA/ •*.i : •• .....• ..,:•-c7,.. .."•,-: ••.' , S = .0044FT/FT . .., \ Z:• ; i ,...... : '.• i ' CB 9 L--- , i ..... 8.. 1 ..••••-•*". .... ,•'' RIM EL. .Z2.0 /• ,„'.1i;1;:::::1/1/,1/1,//1!,/1•:...7...'.[..,. , „JIEE4'ONU(T(E3.....19.1 . .............,......, -:.:,i;.......•....... ..i,.. s...,. •, IIEE OINU(TW()N 5I 71• 790.9± TEMPORARY EROSION CONTROL * / ::(''. :.:... FILTER FABRIC FENCE '",AND/OR HAY BALE .,.. ...... ' ...,. •5••./..••(•‘•$: ••••••••;•i-', • CiT..%.-• '''..% . .... . c., S ...' , •. .,. .%, ,..- :..... ALONG WEST BOUNDARY . • .•••. 0 OF PROJECT SITE. •Air:., i ',/":"..'Vs •':(• %:: ''.. \ ..,... ../....:,../ ::: ••. r•.'.i.--••13":•,.. ',,. ! :......... •••• •, •• ' L.•••.. ii •••-•......<•L•••":::, "1 ! \ • ':):-.,' •'• 4 :•.--,.....•-:.....••:--.::......... i::*":7••••:•i;..7.••••'••• .i.••.••• I i I:. ..,- _ - ....- RIGHT OF WAY-- T !'f-.•.-..„......i '!,. E:1 1!:ii,,1 D..;:i..:?.!,.....!'i ss :. ..... ..........-......... -.......--........ ....:.....,,,:....... ............-. ... . ..._ ,........._-........... „................ ; ...• v'. . - .0?::..... ....'" 30 0 30 PROPERTY LINE ..,-, ,. , : , •-•-- :::.!-:••:•:••••:••.f"..').:''f:'. SW 23rd R/W . - ,,, - ..-- 1 =30" ' stale _ ....._ HORIZONTAL DATUM: ENGINEER olvmnic OLYMPIC PIPE LINE COMP 4111.-_-___Sfa" 2,319 Lind Avenue S.W. 33301 9TH AVENUE SOUTH , VERTICAL DATUM: NAVD8 8 DRAFTER Renton, Washington . ; FEDERAL WAY,WASHINGTON BERGERENGINEERING SITE PLAN NOTE BOOKS: CHECK IA 98003-2600 HAMINEERE INC. VOICE:(206)431-2300 DRAFTING RENTON STATION •••' FAX: (206)431-2250 NO. REVISION BY CHECKED APPROVED CHECK DRAINAGE IMPROVEMENT PROJECT 'THIS DRAWING AND ALL INFORMATION THEREON IS THE PROPERTY OF OLYMPIC PIPE LINE COMPANY AND SHALL AVE NO'S: APPROVED DATE M.P. STA. TO M.P. STA. 'tIi0 NOT SE COPIED OR USED EXCEPT FOR THE PURPOSE FOR WHICH IT IS EXPRESSLY FURNISHED.THE DRAWING SCALE: DRAWING NO. 3 OF 6 REFERENCE DRAWINGS AND ANY COPIES THEREOF (PARTIAL OR COMPLETE) SHALL BE RETURNED TO THE OWNER ON DEMAND. 1"=30' C-1 Last Yawl on 7hu May 25 2000 at.5.16pn,by drab,, Re Name:O.\2000\A00063\CA00\obrots\CI-Sitedwg Scale:30 •— ....,.....""V-Z. , ' i .......,. e. vw 7: . . . • . ‘•I\IC TE D \ EXISTING FENCE ..... IS G cP'ING CIL IES TOP OF BERM AT 0 20.0 OF LIVE WATER STORAGE P PO E E -• .PHA T k, ' OVERFLOW IE 18.0 SIDE SLOPES AT 3:1 TC EXI NG OU 40.0' _I EXISTING GROUND 0 PR . 2 . o MATCH EXIS NG PA4EMENT-- OUTLET IE 13.5 cS APPROk. 21.3 .„. DEAD WATER STORAGE - ,..i. ._ w - " 0 S=2.2% APPROX. PROPOSED GROUND / BOTTOM OF POND \ 0 EL. 12.5 td . : ,,',e,-• ILI IMPERMEABLE LINER . ---". _J WITH UV PROTECTION ....,......,..._ ......, a > _ EXISTING-G EDG_E7 S=2.5% APPROX. ' -4111kIEF- C2 OF ASPHALT 1 ,L POND - SECTION CD SCALE: 10 I 100.0' LOADING TRUCK PAD - PLAN B SCALE: 10 10,470 GALLON CAPACITY MH 2 36" TYPE 2 MANHOLE b TOP OF WALL 0 21.00 PROPOSED GROUND , -___,_.-- .....---- r- 8" OVERFLOW PIPE @ IE 18.0 T BUTTERFLY VALVE 1 T IE 13.5 LOADING TRUCK PAD - SECTION SCALE: 10 H:5 V 8" OUTLET PIPE IE 13.41 8" OUTLET PIPE 0 S=.005FT/FT © S=.005FT/FT IE 13.33 / TOP OF WALL AND CURB 59 ' JNG G ASPHALT 0 APPROX. 21.2 OUTLET 0 SCALE: NTS STRUCTURE • MATCH EXISTING ASPHALT b EL. 20.0 • - — - : b 6 S I --____ = 2.03% APPROX.. ___,_ ____ -__ 0 b EL. 20.0 CONCRETE CONTAINMENT AREA 6 II I ..1 6" GRAVEL SURFACING 7 / 4" PERFORATED PIPE W/ FABRIC WRAP 6" SAND LAYER ( DRA PADS - PLAN IMPERMEABLE LINER 1) SCALE: 10 7620 GALLON CAPACITY EXISTING GROUND 7:'..".;t.".:;:f..";V'.;"..•.;:.".;t.s.;'h.";:.••;t.".;,'t•.;f.".;I.'.:;:t".:;14 innEli \_ 2.0. LT, GMRAOTUCHNDE: NONWOVEN GEOTEXT1LE 9.0' / 9.0' j c-: I 1 1 1 ''.>• TOP OF WALL @ 21.5 MATCH EXISTING ASPHALT © APPROX. 21.2 - 0 TYPICAL LINER SECTION SCALE: NTS F DRA PADS - SECTION 2 E DRA PADS - SECTION 1 SCALE: 10 H:5 V SCALE: 10 H:5 V HORIZONTAL DATUM: ENGINEER t OLYMPIC PIPE LINE COMP ozo 2319 Lind Avenue" S:46n 33301 9TH AVENUE SOUTH - _ VERTICAL DATUM: DRAFTER .W. Renton, Washington NAVD88 ' FEDERAL WAY,WASHINGTON - ENGINEERING DETAILS BERGERABAA4 98003-2600 - —NOTE BOOKS: CHECK RENTON STATION ENGINEERS I N C. VOICE:(206)431-2300 - DRAFTING .• 'f FAX: (206)431-2250 NO. REVISION BY CHECKED ' APPROVED CHECK DRAINAGE IMPROVEMENT PROJECT '::',!::'6Xii•e''''' THIS DRAWING AND ALL INFORMATION THEREON IS THE PROPERTY OF OLYMPICPIPELINE COMPANY AND SHALL AFE NO'S: APPROVED DATE M.P. STA. TO M.P. STA._ ALE NOT BE COPIED OR USED EXCEPT FOR THE PURPOSE FOR WHICH IT IS EXPRESSLY FURNISHED.THE DRAWING SC : DRAWING NO. 4 OF 6 REFERENCE DRAWINGS AND ANY COPIES THEREOF (PARTIAL OR COMPLETE) SHALL BE RETURNED TO THE OWNER ON DEMAND. VARIES C-2 • ASPHALT BERM ASPHALT PAVEMENT \\\_ � / ASPHALT PAVEMENT To BI-- C O V P L I- I- D F 4 i A GRADE SEPARATION BERM SCALE: NTS EXISTING TANK ----__^ TACK COAT WI GRAVEL APPLIED IMPERMEABLE LINER EXISTING BERM AND GROUND WITH UV PROTECTION A EXISTING EARTH BERM SCALE: NTS HORIZONTAL DATUM: ENGINEER OLYMPIC PIPE LINE COMP (..'--.41-4vntal33301 9TH AVENUE SOUTH VERTICAL NATUM: DRAFTER = 2319 Renton, Washington W FEDERAL WAY,WASHINGTON ENGINEERING BERGER/ABAM 98003-2600 - NOTE BOOKS: CHECK DETAILS ENGINEERS I N C. VOICE:(206)431-2300 - - DRAFTING RENTON STATION FAX: (206)431-2250 NO. _ REVISION BY CHECKED APPROVED CHECK DRAINAGE IMPROVEMENT PROJECT ?':''?5:. THIS DRAWING AND ALL INFORMATION THEREON IS THE PROPERTY OF OLYMPIC PIPE LINE COMPANY AND SHALL AFE NO'S: APPROVED DATE M.P. STA. TO M.P. STA. NOT BE COPIED OR USED EXCEPT FOR THE PURPOSE FOR WHICH IT IS EXPRESSLY FURNISHED. THE DRAWING SCALE. DRAWING NO. 5 OF 6 REFERENCE DRAWINGS AND ANY COPIES THEREOF (PARTIAL OR COMPLETE) SHALL BE RETURNED TO THE OWNER ON DEMAND. VARIES C-3 • Install a new impermeable liner material inside the existing spill containment area for the existing 10,000-barrel steel tank. The containment area is created by an earth embankment. The liner is intended to prevent spilled or leaked substances from entering into subsurface soils. The interior of the containment area will be connected to the new drainage system via a pipeline. A valve on the pipeline will be in a normally closed position. The valve will be opened periodically to release captured rain water. • Install a subsurface impermeable liner in other areas of the north drainage area to prevent contaminants from seeping into the ground. • Construct a stormwater containment pond,on the west side of the project site,into which runoff from the north drainage area would be routed. The new pond will be created by reconstructing the earth embankment of the existing pond(Pond 2). The existing pond has a small storage volume because there is no outlet control. The intent of the new pond is to provide outlet control and a larger storage volume to capture spilled material and contaminated runoff water;the pond is not intended to serve as a stormwater detention facility to reduce peak flow discharge rates. The pond will include an impermeable liner,a low-level outlet pipe with a valve, and a high-level overflow pipe. Pond discharge will be westward into a vegetated area at the same location where the existing pond discharges. The containment pond can be operated with the valve in either the normally open or normally closed position. For example,if operated in the normally closed position,the pond will gradually fill with runoff water. At some water elevation before the water level reaches the overflow elevation,Olympic Pipeline staff will check for contaminants, and will then open the valve if there is no contamination. If the pond is operated with the valve normally open,runoff water will pass freely through the pond with no significant increase in water elevation. Company staff will close the valve if a leak or spill occurs to prevent contaminants and runoff from being released. Olympic Pipeline staff will be responsible for determining the most effective mode to operate the control valve, and for removing any contaminants that are trapped in the pond. South Drainage Area • Install additional drain pipes and catch basins that will tie into an existing drain pipe in the southeast corner of the site. The existing drain pipe discharges into a catch basin on the storm drain pipeline in Lind Avenue SW. CORE REQUIREMENTS Core Requirement No. 1 —Discharge at Natural Location Drainage from the project site will discharge at existing natural locations. North Drainage System Drainage from the north system will be routed to the new stormwater containment pond on the west side of the site. The existing pond at this location drains westward through a swale to a vegetated area. The new,reconstructed pond will discharge at the same location. South Drainage System Drainage from the south system will continue to be routed to an existing catch basin on the existing City of Renton drain line running along Lind Avenue SW. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 2 26 May 2000 Core Requirement No.2—Off-Site Analysis Per City of Renton regulations,the requirement for an off-site drainage analysis can be waived provided that 1)the proposed project contains sufficient measures to adequately protect the downstream drainage system, and 2)the new impervious surface area is less than 5,000 square feet. Regarding protection of the downstream drainage system: Under existing conditions,most of the project site drains westward to the vegetated area that lies to the west of the existing fence line. Runoff water dissipates into the vegetated area. Runoff from the southeast part of the site currently drains into the 48-inch drain pipe running northward along Lind Avenue SW. Under the proposed drainage system,runoff from the north part of the site will be routed to the new drainage containment pond,which will also discharge westward to the vegetated area where the water will dissipate. The drainage area for the system that discharges into the Lind Avenue SW pipeline will increase by about 0.3 acre,which will cause the peak flow into the pipeline to increase by less than 0.5 cfs. Regarding new impervious surface: Approximately 3,600 square feet of new impervious surface will be created by construction of the new spill containment pads. The proposed improvements to the drainage system will result in only minimal changes to the existing downstream system. Therefore,it is requested the City of Renton waive the requirement for an off-site analysis. Olympic Pipeline will provide additional information and analysis if requested by the City. Core Requirement No.3—Runoff Control Regulations Runoff control in the form of peak rate control or water quality treatment is required by City of Renton regulations for certain projects. However,Core Requirement No. 3 provides exemptions for both of these forms of control for projects in which there is less than 5,000 square feet of new impervious surface. Approximately 3,800 square feet of new impervious surface will be added to the project site as a result of constructing two concrete spill containment pads. -Thus,the project falls within the exemptions. (Note: Approximately 35,000 square feet of impermeable liner material will be installed under the existing gravel areas in the north drainage area. The liner is intended to prevent leaks or spills of petroleum products from percolating into deeper soils. The liner will be covered with 12 to 18 inches of sand and gravel material. While the liner is an"impervious surface,"it will not increase the peak runoff rate from the site like a new paved area or building would because of the sand and gravel material that overlay the liner. The sand and gravel material will function like a hydrologic sponge to absorb rainfall and slowly release the flow to the drainage containment pond. Therefore,it is proposed that the area of new liner material not be included in the definition of new impervious surface.) Proposed Runoff Control Runoff control will be provided as part of the project,however,by a new drainage containment pond. As previously described in the Project Summary section,the pond will be located on the west side of the project and will collect runoff from the north drainage area. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 3 26 May 2000 The pond will be designed and operated to contain runoff that is contaminated by leaks or spills,and to prevent that runoff from leaving the project site. The pond is not intended to provide peak rate runoff control or water quality treatment. Design Criteria The containment pond is designed to contain,without outflow,the entire runoff generated by the north drainage area by a 5-year 24-hour rainfall event(2.4 inches per the King County Surface Water Design Manual). A runoff volume of approximately 17,800 cubic feet is generated by the 89,000-square-foot drainage area. Containment Pond Design The containment pond will be created by reconstructing the embankment of an existing small pond and providing outlet control. The pond will have the following features as shown on Drawings C-1 and C-2. ■ Top of embankment elevation: 20.0 • High-level overflow invert elevation: 18.0 • Low-level outflow invert elevation: 13.5 • Floor of pond elevation: 12.5 • Live storage volume(between low- and high-level invert elevations): 18,900 cubic feet • Dead water storage volume(between pond floor and low-level outlet invert elevation): 2,200 cubic feet • Interior side slope: 3H:1V; exterior side slope: 2H:1V ■ Low-level outlet pipe will include a valve to shut off flow • An impermeable liner will be placed in the interior of the pond to prevent seepage of contaminants into the soil • A vehicle access ramp will be located in the southeast corner of the pond Containment Pond Operation The valve on the pond's low-level outlet can be operated in a normally open or normally closed position,as determined by Olympic Pipeline staff. Refer to Project Summary,Proposed Project section(above)for details. Contaminants will be removed from the pond by Olympic Pipeline staff with procedures,such as skimming,pumping, and absorbents. Core Requirement No.4—Conveyance System Design Criteria Pipe systems shall be designed to convey the peak flow rate generated by the 25-year rainfall event. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 4 26 May 2000 Peak Flow Rate Peak flow rate is determined by the rational method as set forth in Section 4.3.3 of the King County Surface Water Design Manual. Rational method values for the north drainage area are listed below. • C=0.5 • i=0.6 inch per hour(based on Figure 4.3.3A of the King County Manual) • A=2.0 acres Thus,peak flow Q=0.6 cfs. Rational method values for the south drainage area are listed below. • C=0.7 • i=0.45 inch per hour • A=2.4 acres Thus,peak flow Q=0.8 cfs. Pipeline Design All drainage pipelines will be 8-inch(minimum)PVC with a minimum slope of 0.5 percent. Maximum pipe capacity is,therefore, 1.2 cfs,which provides excess capacity based on the peak flow as determined above. Core Requirement No.5—Temporary Erosion Control The temporary erosion control plan and requirements are included on Drawings G-1 and C-1. Clearing Limits All construction will be within the existing chain link fence around the project site. Notes on the project drawings show the fence as the limit of the contractor's work area. The project will not require land clearing. Cover Measures Construction of the drainage containment pond and installation of the impermeable liner in the north drainage area will be the main areas where earth work is involved and that may require temporary cover. Pond construction will require sod removal followed by placement,grading,and compaction of embankment material. Matting and seeding will be placed on the new embankment immediately. Installation of the liner in the north drainage area will include the removal and temporary stockpiling of the existing gravel material,then reinstallation of the gravel. The temporary stockpiles will be covered with plastic tarps as necessary. Perimeter Protection Hay bales and filter fabric will be installed inside the chain link fence along the west side of the project site. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 5 26 May 2000 Traffic Area Stabilization The entrance area to the project site is currently covered with crushed rock and asphalt,thus tracking of soil material off site to Lind Avenue SW is expected to be minimal. Stabilization,street sweeping,or other measures will be performed as necessary. Sediment Retention Sediment laden runoff water will be routed or pumped to the drainage containment pond or to the existing pond located at the northwest corner of the site. Sediment will settle out in the ponds and water will be released into the wetlands. Surfacewater Control Refer to Sediment Retention,above. Dust Control Dust control measures are not expected to be necessary for this project due to the small amount of earthwork involved. Dust control measures, such as spraying with water,will be applied as needed. Wet Season Construction The project is expected to be constructed approximately between mid-July and mid-September. Wet season erosion control measures will be implemented if construction extends past 1 October. Construction within Sensitive Areas and Buffers Construction will occur within the buffer area of the wetlands(but not in the wetlands)that are located to the west of the project. The wetlands will be protected from construction impacts by a sediment barrier as described in Perimeter Protection,above. Maintenance The contractor will be responsible for maintaining all erosion control measures during the construction period. The contractor will be required to designate an erosion control supervisor. Final Stabilization Matting and seeding will be installed on the earth embankment forming the drainage containment pond. Other site areas will be covered with crushed rock or asphalt. SPECIAL REQUIREMENTS None of the 12 Special Requirements appear to be applicable to the proposed project,thus a waiver is proposed. Olympic Pipeline will provide additional analysis and information if requested by the City. TECHNICAL INFORMATION REPORT WORKSHEET(TIR) Not required by the City of Renton for this project. Drainage Report,Olympic Pipeline Company BERGER/ABAM,A00063 Renton Station-Drainage Improvement Project 6 26 May 2000 li*************************************************************** City of Renton WA Receipt ******* ******************************************************** Receipt Number: R0002867 Amount: 1, 503 .30 05/30/00 16: 07 Payment Method: CHECK Notation: OLYMPIC #32366 Init: JEJ Project #: LUA00-068 Type: LUA Land Use Actions Parcel No: 302305-9084 Site Address: 2319 LIND AV SW Total Fees: 1,503 .30 This Payment 1,503 .30 Total ALL Pmts: 1, 503 .30 Balance: . 00 **************************************************************** Account Code Description Amount 000 .345 . 81. 00 . 0007 Environmental Review 500. 00 000 .345 . 81. 00 . 0017 Site Plan Approval 1, 000 . 00 000 . 05 .519 .90 .42 . 1 Postage 3 .30 w Critical Area Study and F Buffer Enhancement Plan ! tot .,_ �.... I'f 111itt�� p�gr � -Y t off t k 4 7 , i ;;!r u�l�l F i 4 r, • -fi j fit,,' ' '_011 f %J f `'',g,,,,,"4,2 ' rt lir— '----z- t. .,-,-- .t ,,,,,,, . 4 � ��,� '� � YI2IEIE lC J y ��. ANY .\.„..,..............7... I iv r"WA .N :.«R '$*—/ *ft. ' i ' Olympic Pipeline p Renton Station Drainage N � :, Improvement Project , -,x ''.. Submitted to BP Pipeline , OperatorsNorthAmerica of the Olympic Pipeline Co Lisle, mpany Illinois Submitted by BERGER/ARAM ENGINEERS I N C. Job No. A00063 May 2001 . CRITICAL AREA STUDY AND BUFFER ENHANCEMENT PLAN Olympic Pipeline Renton Station Drainage Improvement Project Submitted to BP Pipeline North America, Operators of the Olympic Pipeline Company 801 Warrenville Road Lisle, Illinois 60532 May 2001 Submitted by BERGER/ABAM Engineers Inc. 33301 Ninth Avenue South, Suite 300 Federal Way,Washington 98003-2600 Job No.A00063 • OLYMPIA PIPELINE RENTON STATION DRAINAGE IMPROVEMENT PROJECT CRITICAL AREA STUDY AND BUFFER ENHANCEMENT PLAN } TABLE OF CONTENTS SECTION PAGE Introduction 1 Project Purpose 1 Proposed Improvements 1 Site Description 1 Methodology 5 Wetland Investigation and Determination 7 Wildlife Observations 10 Mitigation Measures 11 Monitoring 12 Maintenance Requirements 13 Contingency Plan 13 Limitations 14 References 15 FIGURES Figure 1—Vicinity Map Figure 2—Site Map Figure 3—Drainage Improvements TABLES Table 1—Wetland Indicator Status Table 2— City of Renton Sensitive Areas Overlay Wetlands Rating System APPENDIXES Appendix A—Vegetation List { Appendix B—Data Sheet Appendix C—Planting Plan Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station ii May 2001 • INTRODUCTION At the request of the Olympic Pipeline Company, BERGER/ABAM Engineers Inc. (BERGER/ABAM) has performed a wetland delineation and prepared this report for the Olympic Pipeline Renton Station Drainage Improvement project. The project site is located in the City of Renton, Washington, south of Interstate-405 (I-405) and west of Lind Avenue SW(Township 23N, Range 5E, west half of Section 30). A vicinity map is provided as Figure 1. The Olympic pipeline property is comprised of approximately 12 acres, of which the easternmost 6 acres are currently developed for industrial purposes. BERGER/ABAM completed this study in order to determine the presence, extent, and characteristics of wetlands and their buffers in the study area, in compliance with regulations promulgated by the U.S.Army Corps of Engineers (USACE), the Washington Department of Ecology(Ecology), and Renton Municipal Code, Section 4-3-110. PROJECT PURPOSE The Renton facility of the Olympic Pipeline Company handles transmission pipelines,pumps, valves, and a storage tank used for transporting refined petroleum products from Anacortes, Washington. The Renton site also contains the company's administrative and operations buildings. A map of the project site is provided as Figure 2. The intent of the drainage improvement project is to segregate runoff originating in the north portion of the property that may be subject to leakage and spills of petroleum products and to route the runoff to an improved on-site containment pond. The objective of the project is to prevent infiltration of petroleum products and contaminated runoff water into site -. subsurface soils, into adjacent Type 2 wetlands, and into Springbrook Creek. PROPOSED IMPROVEMENTS The proposed improvements will consist of improvements to an existing drainage containment pond, new drainage pipelines, concrete spill containment pads,placement of an impermeable liner within the existing spill containment area, and placement of a subsurface impermeable liner within certain gravel areas of the site. Improvements are shown on the attached site plan(Figure 3). SITE DESCRIPTION The project study area and surrounding lands are used for commercial office parks, high-density residential communities, and light-to-heavy industrial work. The project site is situated atop 10 feet of fill material (silty sand with gravel)that was placed on the property approximately 20 years ago. Springbrook Creek runs north-south approximately one-half mile directly west of the Olympic Pipeline Renton Station. An extensive wetland complex exists adjacent to the developed site 10 to 30 feet from the chain-link fencing that surrounds the industrial area. The project study area is generally flat, with elevated grades for the developed zone. Vegetation within the wetlands immediately adjacent to the developed area includes the following. ■ Scrub-shrub wetland areas dominated by Pacific and Sitka willows, red-osier dogwood, and black cottonwood to the north and west of the site ■ Reed-canary grass-dominated edges and swales in areas lacking canopy -__ Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 1 May 2001 iay ""o•.E • • �.1s : �€.t; ?.` "::':,:�,-. `'ti "i,.,..�;• :i.>, ,i.,...'•�'_:. k.: : .r'4.:::f� E f1:''i3•':..;.,'ts. :::;::, : ..f „haj -!air ,:;•; a,:�' b:% .>. .#`#;iG,:�:v :i'r,•.. >t', ;' . .S:� 'r. ; , . . rho • f iI Y :.• t : p. tpNtexp: �tomR � :�'. < .� �ai t.. x: -. vE. St €#.. X C ., .. .., ...,sahG�.: ....0 .i.1ti"1 ..M:.,.,..:�::'i C.:f�i£:-k �.�' '�},,AL'`�#�'`[%r .'Y.,:y .,.>,y,',!q, ti .. • t ' -.:.Q.:_ i. ..w•<•w< '�: y,,- {' i. a"gg ;;�'r' i/':t'sJ:` •, :a:: �S�. I<:.,,. <s . :�:�: �#—' ,>fN,.a3.' { , .:Y,;k.:. PROJECT lig ( }� .€.� • x�', o{( :1 3�'.�. .h- SITE �+, .:v ;y.,,,r. Naf"'":`yL....^r:; ::' - • .. /yl`± ,��.�t:<€. i.�._.C L<".' \. :f.L°{!;'", < i gn 77 E1 r. .P �#:-.._�i'��• �{'� ” y 3.�!" ��H<-fir: �ir: < • s:.r{w�....,.:. ;•.,..v..,. • '<:,;.#rb'-`�:;r..'�' :•,asiwggs: .f' X:." kz'�:'z DES• t#. ,.I7. _� _+:., i(� �RENTON. *� .;, , ,�. .' r ..,E l'•::. :. ., s ... ' `.:i::.• .:?::i<;::"> y� �j1� :.P N off"':1�k .... }":. •.l:�<� � `�5..7.•:,. w • j %:i >f it £: } :E� •�3V.F s•- <s}s.. • a r • • '27 : .�t ' :,G:' ti E A t .,j. ...,,;•, ;:r:;: ,ba.. ,, #. "emu ,:i.5;:� �'t•: . . :O::k 4':0,. . ,.:mot'' : ...Y. E`Sis3�` �,.3�• :zF▪ ' "f Ti,' `[" Ti . .:b:t ; J s t pry, , l. • ▪ �i F'w : • ,#▪ £� , • .'.,. 'y'y>'Fk.. :114t I • .. • % :J''<i::.,:}; : E>tit:;f.;.... J.::Y'pAS.:g g. iic . •'�:: � psi: _ t .. s j 'x>' :s r..:I j ,1: > •1.•i ;„` F .t: f.: `;f i.. :j. f • £I qq t • • I � ' :%"`^ :.: @- C'• .i. a• a a � R: ,im i.:: >tF. Ff:€i. : : ' ;;'y:" `,:4 . ` . a r.� t . •C. ..:>,<- i £' �< k. ar%'`<�.... f:-. <ait"•;�..�.:i:: �} e � i . . r':•a k ' "..1. >' 11 North • HE�Eeh':;<r Vicinity Map Figure 1 Olympic Pipeline Renton Station Drainage Improvement Project N in UNNAMED DRAINAGE CHANNEL xo - i a_ WETLAND a — I Tx-' �i WETLAND I" L 1 CY x _ A t EXISTING CHAIN LINK J—... `Ai o = I FENCE.PROJECT SITE •l?x x- ^- I BOUNDARY AND LIMIT I .- _sj ' . OF CONSTRUCTION AREA .I y Ig WETLAND BOUNDARY .,,........yiNI x J �• o x II I APPROX. 100 YEAR a FLOOD PLAIN BOUNDARY \\ x x x x ," I x- N st — 41) i North • BE GER/" :"` Site Map Figure 2 `"" Olympic Pipeline Renton Station Drainage Improvement Project •_. ___�ti ,- 4` PERFORATED (9DSPILL EiAILAINir�M DRAW'LOCATIONS H I I DRAIN PIPE, TYP L�GA EXISTING DRAINAGE POND /j1 ,�\ i --- IYEnJWD BOUNDARY i I DISC ARGE FLOWS IINTO / • 1 - -- -- ----J BUPo ERVIOUS UNER N ,2 . J D D AINA r CHANNEL SURVEY CONTROL N69'S2''22'W ����- ~- p1P 89'S2' " Ut N .tE P G - • 1 .tt�a - 30.01' I I BENCH MARK 1 (CTS BM #1) > �, _ - -_ 4�I PERFO ATED N = 169874.82 E = 1296414.70 / «: r,• G i/./: ,/ / _,j, -� i II DR N PIPE, TYP �/ / •�: / / // .'' BENCH MARK 2 CT BM 2 PROPERTY UNE i- E' , C -0 r, A� MO-. :[ I TT //7// ///� d. r/ j � I SE SHEE" C-4 FOR �i7 N = 170215.55 ( E = 1296420.46 'PORT //9 `!N /7/:1F.:� ✓�� /7/. / ,,:6/1.//,//4//� 9,e/ ;,r //.1" 'y%./, LA L IE�OUT(E� 1935`_10, TYPE 1 -1�\ /waxu ��1R1 �� � 3!°� ,/,�TA"Y'1/�{4//�//Y// 'jQ1Jj($)'.1�/�i�' /7 / I N MATCH EXISTING �1r /�/S��I -ESiE`."•,.� ' , -"/'/,",. 4 • /�� yy///4i T /i ( �i� IGHT Ott WAY RIM EL,21.1 r - - 3/Ga',at. tl�C �l%/`i/�'// //i/fC)1;/ /i ' ' 'i i j/ CB 1, 1 I /,r �a097 ,S' 1I /4i/,L._;'�;/ iT"' ,1i./('• �,•1 �/11�� of RIM EL 2,� I �'[� i/// / I �,L . .1" 'SPILL/j'r'Y / /, \ / /0� / IE OUT( �,. 19.00 0' 40' I / --- ta; ////,COMAJII IENT;FAI ,/2 / ' IIIIII - .4- / I / - -, ''20aw I�/�! ///i/�.. i��/I��I J/ �/ / 7 'OLYMPIC �� �` r /' ', /S NORMA y-LcLOSEDJ/ r /,/,t• "lb,IPELINE • • k -1t �A r)\`1 /jam ii - ':/ �. ///'- "'El /'../i/�I /�• C/ ,I/ a/ BSTATION. IMPERMEABLE UNER 1111111; y' \1 '1 Va, t3 6' PVC x\� \ / `I,,' a%.01 FT/FT ` 3 -/. 1: %i * CTS 8M i INCONTAJNAREI1I '� \� \�i ��� //; I / r.J`,/f L=[1.90 I' �I 11 \ \ ' \;` /,. / PAVEMENT REMOVAL 10000 BBLS CA'ACITY 111 rllt'` / .i�/, ^ S ��t • /' �/ / C8 TYP 1 ( 1.-1 :.‹ 2 c AND REPLACEMENT. EX. Ilk \\`� \ \\,, �.nlrllliw in,, \ > //,; 3 / //f�/ ¢1 v `� GASOLINE/DIESEL TANK I 4 LI \� a,a'II . a Sib'CCU "/ _ � ' RI EL 22 0 I O 4' PERF. DRAIN PIPE UNDER UNER I„Illlll���lsl� ``\\� " y 11 j/ 'z 1 //' IE (NE) 18.49 1 �.1 Q SEE SHEET C-4 FOR LAYOUT / �lll r'( I, \• \��\\ a�l1l �o j : ©U!_I'/!G ' = •�� ' IE W) 18.49 I TELEPH JE �.J GRAVEL AREA WITH LINERAnk EXISTING SPILL CONTAINMENT BERM �l � \\'\ \ y \ V 1� (/ �� , =s F-EEL GIL / i � ; NEDE 'L j/�// I 11 \} \\\••\y \ jt / 1 y / // / SUBDRAINS ABOVE LINER. / aI. il I 1•Va.\'''\ ��>\�� \ // Ia N�': DRAINAGE A �1�� . l / NOTE: THE LIMITS OF THE LINER ARE THE / 1 1., b\ \ss . \`\ 11= / �'' _ - I i P FOLLOWING; EXISTING ROAD, ASPHALT, / e sIV ' �\` \•\ \.il 1C{� , // I� �a_ � � �l {r EXISTING VAULT, EXISTING STRUCTURES, 1 , I\i 1' l////� .,, sy ��s tIw ,r s THE BOTTOM OF THE CONTAINMENT \ \�\�\ / / DRAINAGE BOUNDARh j ar v BERM, THE FENCE LINE, AND THE I 50' WETLAND BUFFERS \\ ry�\ I� 1 P .//i r _/���: ©' s o\ . t Z LIMITS IDENTIFIED ON SHEET C-4. ` \ \\ \,„ n',:�g(N 2 . (SOUTH GRADE A/1- ON B2', ,n 1 �k. � ' � 1 :, / ( "•� fS' DRAINAGE © C8 3, TYP ��' r--� - I Z ' APPROXIMATE AREA = 34000 SF WLZIJWD BOUNDARY _•-i ..a Y/ , 0� EAII"RIM EL 22.� ® u l z tm1 +ty 15 /� 1. IE IN(NE) 7t: '. � � I L J \\\\:.* LINER ONLY WITH SUBDRAINS BELOW LINER. - -- >/j/ `/-_ S:P1 WPtr- IEINN L.: _ 30 LF 10• PVC S .005 FT/FT / - )) E \ \\� (BERMED CONTAINMENT AREA & / I -- J P . CB 4, TYPE 1 ✓' / = IE OUT(SW� ,X' AW,� T AND C3 1 \�\'. RAINAGE POND) I. I �� -- ': 9 p05 FT/FT RIM EL 21.6 °�`�r, : I . y EP y' ASPHAy i Q i7•y ti� - 5 IE IN N) 17.61 ` .�' ti EET C-4I NW • NEW EMBANKMENT FOR / li�� _- ib 11 E INSNE 16.12 \ STORMWATER RUNOFF _ '�i j"1 l ) J FOR EDCATION. I I CONTAINMENT POND �4.�f �.CtTFAIl ••ram. 'r;r OUT(W) 16.12 -- . Q Q Iqq"'�/�I�1T'�� •� s i I 15.50 I I ^ ‘^'�•..V.\ 'v ' I SEE DETAILS AND FOR LIMITS. 4' PERF. DRAIN PIPE UNDER UNER I 0 r f IA 7, TYPE 1 = < ''" V' o• I ��l �\\\\ I AC C eSEE MEET C4 FOR LAYOUT. I �` \ �I I IE EL. 21 9.8 ' JI OLY�l1r/C P!,°cL/Y�E ? % I i BERMED CONTAINMENT AREA APRROXIMATE EXISTING DRAW AGE POND y2 ��N����I+!R T \P\Oli 1 I 'GAk.Cc I APRROXIMATE 1 `�f �j `I C,��/CE BL!%Lo NG ■' EXISTING MANHOLE AREA 15000 SF �<� CI?Y bF RENTOPJ DRAINAGE POND AREA 1,1�!�• `�.�� z '"CO�,, ,n��_. �� li i- AREA = 120D0 SF �c� \� it _G S���21/ \ j/ I SDMH RIM EL=c2_O7 0 44 � \1` ,� I SIY 1 -- INV 48" CORC -8.9 \` INV 48" CONC N=8.97 • MH 2, CATCH BASIN TYPE 2(48') ''Y\Ality.•‘,1;k"..w, �r �Il ` ��,�� ` 1log x gi Gfj, iIIJV 18CONC 7J=9.57 TOP OF POND ►",��: �'� •`Q a�. 1 0 =1 5 i RE, , a4 ELEV +20.00, 5' WIDE ' \ Q , « 4•10 STOCKPILE ! R SEE SHEET CS FOR LAYOUT �� i. � i 1' «! o I/ EXISTING CITY OF ENTnN STORM DRAIN COORDINATES \ :� r�14: *1� 0 48" STORM DRAIN PIPELINE E A v r. LOCATION �1 i ! POND DISCHARGE \ \�\,a ,4� ` ` o . c. _il. • .iri OUTFACE'C' \,,� y MH1 170138.16 1296090.82 • W/QUARRY SPACES -•.I \ ul Iry ,- II MH2 170043.12 1295999.57 �� \ \ / a. ; CB1 170323.36 1296419.05 EXISTING CHAIN LINK l \ \ ,�J I \ • 3 IG v . CB2 170231.20 1296375.33 FENCE. PROJECT SITE j �-j MAINTENANCE\ °e �� - CB3 170204.71 1296313.79 :XISTING CONTOURS BOUNDARY AND LIMIT '\ SS RAMP 20 y 5 IF R' P OF CONSTRUCTION AREA/-�' I .0044FT CB4 170149.76 1296186.12 'ROPOSED CONTOURS l \• r N ( I CBS 170329.63 1296315.42 L " . \ \ �/1 1' c ID ' r� RI 9, TYPE 1 I CBS 170334.70 1296315.42 ((( T c CB I CE 15i /� RIM EL 0 CB7 170128.54 1296182.68 1 1 c IE IN( 7.90 U / � I 513 \ �� MilVEr,1:19!12 IE OUT 17.'fCBS 169971.67 1296176.23 H. \4C/� 4 i i � -<2-�-1 \ P i TEMPORARY EROSION CONTROL \ \ / // \ \ 0 1 o I CB9 169966.64 1296450.19 FILTER FABRIC FENCE /' ° / III CB10 170325.51 1296089.38 AND/OR HAY BALES r I i MI \� ' 1 , OF'A' 170 . 12960 .90 ALONG WEST AND NORTH /% BOUNDARY OF PROJECT SITE AT 1 �_� �'`"` _/ IL'B' 170058.0135 1296015.74598608 o/, 1 OF'C' 170035.03 1295986.08 EXISTING FENCE UNE. ! I1 I I I n _ y �/ /'� � D\ / I *COORDINATES ARE FOR THE FLOWLINE \ \ /jj / „ y '+= T �k * (� ;Lti i OF THE CATCH BASIN, MANHOLE OR PIPE 7 } OF - OUTFACE \ C9 RIM L 21.01 I IL - INLET • \ /j/ RIGHT OF WAY T !.71� 1 J !� ,t ,��• INV 8" MP N=19.25 PROPERTY UNE 30 0 30 6D 1"=30' G SPS'26'33"E SW 23rd� IC7S BM �1 I scale feet ®\ ' EL=22.16 North • Drainage Improvements BE GER/ 0. Olympic Pipeline Renton Station Drainage Improvement Project Figure 3 METHODOLOGY Wetland Definition Wetlands are formally defined as "... those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas." (Environmental Laboratory, 1987). Wetland Delineation Requirements The wetland delineation was conducted using the U.S.Army Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987) (Corps manual) as required by the USACE and the City of Renton. In February 1997, the Washington State legislature adopted the Washington State Wetlands Identification and Delineation Manual (Ecology Manual) and require its use by local jurisdictions. This new manual is consistent with, although not identical to, the Corps manual. According to both manuals, an area must exhibit indicators of hydrophytic vegetation, hydric soils, and wetland hydrology to be considered a wetland. These criteria are mandatory and must all be met for an area to be identified as wetland, except under circumstances when a wetland is considered a disturbed area or problem wetland. These criteria are discussed below. Vegetation Hydrophytic vegetation is defined as macrophytic plant life growing in water, soil, or substrate that is periodically deficient in oxygen. For each plot, the percent areal coverage is estimated for each plant species present, and the dominant species are determined. Species are assigned a Wetland Indicator Status (Reed, 1988), which is based on the estimated probability of each plant species' occurrence in wetlands or nonwetland(see Table 1). Table 1. Wetland Indicator Status ` stimated,Probabi it ';of:.: , Wetland Indicator - , Being Found:in`a Wetland, Status, " Description OBL Obligate:species that almost always occur in >99% wetlands under natural conditions. FACW Facultative Wet:species that usually occur in 67%>99% wetlands but are occasionally found in nonwetlands. FAC Facultative:species that are equally likely to occur 34%>66% in wetlands or nonwetlands. FACU Facultative Upland: species that usually occur in 1%>33% nonwetlands but are occasionally found in wetlands. UPL Obligate Upland: species that almost always occur < 1% in nonwetlands under normal conditions. NL Not Listed:species that are not listed and are presumed to be upland species. NI No Indicator Status:species that have not yet been evaluated. j (adapted from Reed, 1988) Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 5 May 2001 The indicator status of the dominant species within each vegetative unit(tree, shrub, herb)is used to determine if the plant community of an area is characterized as hydrophytic. If 50 percent or greater of the dominant plants in a unit have an indicator status of OBL, FACW, or FAC, the vegetation is considered to be hydrophytic in both manuals. Common plant names are used throughout this text. Scientific nomenclature of all plant species encountered follows that of Flora of the Pacific Northwest (Hitchcock& Cronquist, 1973). Where the taxonomic names of plant species have been changed since 1973, plant names follow the 1988 list of synonymies (Reed, 1988;revised 1993). Soils The King County Soil Survey(Snyder, D.E., P.S. Gale, and R.F. Pringle, 1973) and Hydric Soils list (Soil Conservation Service, 1985)were consulted for the presence of mapped hydric soils within the project area. Soils were assessed in the field by examining soil for hydric indicators to a minimum depth of 18 inches with a soil auger. Soil characteristics examined include hue, value, and chroma, as identified on a Munsell soil color chart(Munsell Color, 1992). Hydric soil indicators include mottles, low soil chroma, gleying, and high organic content. Mottles are spots or blotches of contrasting color occurring within the soil matrix. Gleyed soils are predominantly neutral gray in color. Hydrology Wetland hydrology is defined as permanent or periodic inundation or soil saturation, to within 12 inches of the soil surface, for a significant period (usually a week or more) during the growing season (Environmental Laboratory, 1987). Where positive indicators of wetland hydrology are observed,it is assumed that wetland hydrology occurs for a significant period of the growing season. Direct indicators of wetland hydrology include areas of ponding or soil saturation. Indirect indicators include dry algae on bare soil, water marks on soil or leaves, drift lines, oxidized root channels associated with living roots and rhizomes, sediment deposits, and drainage patterns. Duration of inundation and/or soil saturation for the Ecology Manual is based on the number of days during the growing season that are at 32°F (OOC) or above. Wetlands in the Pacific Northwest area must have 26 days of continuous saturation or inundation within the growing season to meet the criteria for wetland hydrology. Within the study area, direct and indirect indicators of wetland hydrology were recorded on data sheets and described. Method The "routine on-site determination method" (Environmental Laboratory, 1987) was used to delineate wetlands within the study area. This method is used for areas equal to or less than 5 acres in size, or for larger areas with relatively homogeneous vegetative, soil, and hydrologic properties. A combination of field indicators, including vegetation, soils, and hydrology, were used to determine wetland edges. Sampling results for the three criteria were analyzed to make a wetland determination for each plot. Based on the results of plot determinations and visual observation of site characteristics, an overall assessment of the area was conducted and wetland boundaries were located. Review of Existing Information Prior to conducting field evaluations, existing literature, maps, and other materials were reviewed to identify potential wetlands within the study area. This information included the following. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 6 May 2001 • City of Renton Wetland Inventory Maps (City of Renton, 1991) ■ Renton, Washington topographic quadrangle (USGS, 1994) ■ National Wetland Inventory Map, Renton quadrangle (USFW, 1988) is Soil Survey of King County Area, Washington(Snyder et al, 1973) ■ Hydric Soils of the State of Washington (Natural Resources Conservation Service, 1985) • City of Renton Potential Wildlife Areas (City of Renton, 1998) • City of Renton Critical Areas Inventory (Jones and Stokes, 1991) --- City of Renton Wetland Inventory Maps The City of Renton Wetland Inventory Map (Jones &Stokes, 1991)and the City of Renton Critical Areas Inventory (Jones & Stokes, 1991)map the Category 2 wetland adjacent to the site as follows. ■ Location: Township 23N, Section 30, Renton Quadrangle • Dominant species are willow, dogwood, and black cottonwood • High-quality habitat; one of the highest quality wetlands in the City IN Permanent wetland flow-through • Hydrologically connected to Springbrook Creek Priority Habitats and Species Data Base The Washington State Department of Wildlife (WDFW) Priority Habitats and Species (PHS) data base was examined for endangered, threatened, or sensitive wildlife species; species of concern;and priority habitats within the project area. The results of this investigation are discussed later in this report. King County Soil Survey The Natural Resource Conservation Service (NRCS) (formerly known as the Soil Conservation Service) defines hydric soils as soils that are saturated,flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part of the soil profile (SCS, 1987). The NRCS, in cooperation with the National Technical Committee for Hydric Soils, has compiled lists of hydric soils of the United States (SCS, 1985; 1987). These lists identify soil series mapped by the NRCS that meet hydric soil criteria. The Soil Survey of King County Area, Washington (Soil Survey) maps Woodinville silt loam (map symbol—Wo) as the dominant soil within the study area. The Woodinville series consists of poorly drained soils that formed in alluvium on stream bottoms with a typical profile as a gray silt loam with layers of peaty muck extending from the surface to a depth of 38 inches. Permeability is moderately slow, runoff potential is slow, erosion hazard is slight, and flooding potential is severe, unless flood protection is provided. Available water-holding capacity is high and there is a seasonally high-water table at or near the surface (Snyder et al., 1973). Woodinville silt loam is classified as a hydric soil(SCS, 1985; 1987). WETLAND INVESTIGATION AND DETERMINATION A field survey to identify and delineate wetlands within 100 feet of the project site was conducted by biologist Becky Gurshaw, of BERGER/ABAM. Observations of topography, vegetation, soils, and hydrology identified one wetland complex adjacent to the project site. Data sheets for the wetland are provided in Appendix B. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 7 May 2001 Wetland Complex Vegetation The wetland is a predominantly scrub-shrub wetland composed of the following dominant species: Sitka willow (Salix sitchensis, FACW), Pacific willow (Salix lucida spp. lasiandra), black cottonwood (Populus balsamifera, FAC), and red-osier dogwood(Cornus stolonifera, FACW+)within the canopy layer. Reed-canary grass (Phalaris arundinacea, FAWC+) dominates the herb layer. Based on a dominance of species rated facultative or wetter, vegetation in the wetland is considered hydrophytic. A complete list of vegetation found within the wetland is given in Appendix A. Soils The NRCS (Snyder et al., 1973)mapped soils within the wetland in the Oridia-Seattle-Woodinville association, specifically, Woodinville silt loams and silty clay learns. Soils generally were hydric at the toe of slope that was created from the industrial zone fill. The soils sampled in the wetland at 10 inches in depth within the A-horizon were olive brown (10YR 3/2) silty clay and silty clay learns with yellowish brown mottles and reddish mottles (10YR 5/6) from the surface to a depth of 18 inches. Grey gleyed (N51) silty clay soils were observed below 18 inches in depth. These soils were considered hydric due to a low chroma with mottles within 10 inches of the surface. Hydrology The sources of hydrology to the wetland include a high groundwater table, Springbrook Creek, direct precipitation, and surfacewater runoff from adjacent areas. Soils sampled within the data plot were moist to 10 inches and, in several samples, water filled the soil pits to within 4 inches of the surface. Classification and Rating The City of Renton bases its wetland classification according to the wetland classification system established by the U.S. Fish and Wildlife Service (USFWS) (Cowardin et al., 1979), which is the current federal standard for classifying wetland habitat. Wetlands are rated by the City of Renton according to three categories, as shown in Table 2. According to the Cowardin system, the wetland was classified as a"palustrine scrub-shrub/palustrine emergent(PEM/PSS) wetland." This wetland would be classified as a Type 2 wetland by the City of Renton based on the following criteria. ■ It is estimated to be greater than 2,200 square feet in size • It is subject to minimal disturbance • It has a minimal open-water component • It has no presence of threatened/endangered species (City of Renton, 1997). Existing Buffer The buffer of the Type 2 wetland presently extends onto the developed portion of the Olympic Pipeline site. Within the developed portion of the site contained within the chain-link fence, the buffer encompasses graveled areas in the north portion of the site, the existing drainage pond in the western portion of the site, and a gravel and stockpile area in the southern portion of the site. Outside of the fenced area, the buffer encompasses an abandoned drainage pond comprised of reed- canary grass on the north side, scrub-shrub vegetation along the northwest side of the site, and a grassy area along the southwest and southern portion of the site. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 8 May 2001 Table 2. City of Renton Sensitive Areas Overlay Wetlands Rating System Wetland Class Wetland Buffer Type 1 Wetlands: Those wetlands that are greater than two thousand two hundred(2,200)square feet that meet one or more of the following criteria: 100 feet a) The presence of species listed by the federal government or the State of Washington as endangered or threatened,or the presence of critical or outstanding actual habitat for those species; b) Wetlands having 40 to 60 percent permanent open water(in dispersed patches or otherwise)with two or more classes of vegetation; c) Wetlands equal to or greater than 10 acres in size and having three or more wetland classes, one of which is open water. d) The presence of plant associations of infrequent occurrence;or at the geographic limits of their occurrence;or e) Wetland assigned the Unique/Outstanding#1 rating in the current King County Wetlands Inventory 1991 or thereafter amended.. Type 2 Wetlands: Those wetlands that are greater than two thousand two hundred(2,200)square feet that meet one or more of the following criteria: 50 feet a) Wetlands greater than two thousand two hundred(2,200)square feet that are not Category 1 or 3 wetlands; b) Wetlands that have heron rookeries or raptor nesting trees,but are not Category 1 wetlands; c) Wetlands of any size located at the headwaters of a watercourse,but are not Category 1 wetlands; d) Wetlands assigned the Significant#2 rating in the current King County Wetlands Inventory 1991 or as thereafter amended; e) Wetlands having minimum existing evidence of human related physical alteration such as diking, ditching of channelization. Type 3 Wetlands: Those wetlands greater than five thousand(5,000)square 25 feet feet which meet one or more of the following criteria: a) Wetlands that are severely disturbed. Severely disturbed wetlands are those that meet the following criteria: i)Are characterized by hydrologic isolation,human-related hydrologic alterations such as diking, ditching, channelization and/or outlet modification; and ii)Have soils alterations such as the presence of fill,soil removal and/or compaction of soils;and iii)May have altered vegetation. b) Wetlands that are newly emerging.Newly emerging wetlands are: i)Wetlands occurring at the top of fill materials;and ii) Characterized by emergent vegetation,low plant species richness and used minimally by wildlife. These wetlands are usually found in areas such as the Green River Valley and Black River Drainage basin. c) All other wetlands not classified as Category 1 or 2 such as smaller,high quality wetlands (Chapter 18.45.020.C.,Renton Municipal Code,City of Renton, 1997) --- Wetland Impacts There will be no impacts to the wetland as a result of constructing or operating the new drainage containment pond. The limits of construction for the project lie inside the existing project fence, which contains the industrial(developed)portion of the property. Indirect construction impacts, such as erosion and sedimentation, will be minimized by the use of best management practices, including installation of filter fabric and/or hay bales along the fence line to form a physical blockage. There will be no change in the quantity of surfacewater runoff that flows from the project site to the wetlands. A beneficial result of the proposed project is the increased protection to the wetland from potentially contaminated site runoff through the following protective measures: the existing drainage pond will be lined to prevent infiltration into the groundwater; the pond will be larger to Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 9 May 2001 remove the potential for overflow;site runoff will be directed into drain pipes and catch basins and into an oil-water separator; and containment pads will be installed to prevent infiltration into the underlying soils. Buffer Impacts The project would result in construction within the 50-foot buffer of the existing Type 2 wetland located adjacent to the site on the west and north sides. The work within the buffer includes the following activities. • Improvements to an existing drainage containment pond consisting of removal of approximately 12 inches of existing soil material, installation of an impermeable liner within the pond, covering the liner with 12 inches of clean gravel, and widening the existing embankment around the pond. The proposed work would increase the existing drainage pond footprint by 2,100 square feet. • Replacing an existing graveled area with a concrete containment pad. Approximately one-half of the pad area would be located within the buffer area. Work would not be done outside of the existing footprint of the gravel areas. The work proposed within the existing buffer is an improvement of an existing use and would not result in a change of use. No work is proposed outside of the existing chain link fence surrounding the developed area of the property. WILDLIFE OBSERVATIONS The City of Renton Potential Wildlife Areas map indicated that scrub-shrub and wetland habitat exist adjacent to the project site. This habitat contains mixed vegetation types, including emergent wetland swales, shrub-scrub wetlands, and small forested wetland areas dominated primarily by deciduous trees. Potential wildlife species that may occur in the area include: deer, raccoon, skunk, voles, water shrews, song sparrow,American robin, willow flycatcher, northwestern salamander, Pacific chorus frog, and common garter snake. Actual wildlife observed or heard during the site investigations included common yellowthroat, willow flycatcher, killdeer,American goldfinch, red-winged blackbird, gray squirrel and a species of snail (Mollusca). Species of Concern Species of concern include those classified by the WDFW (1998) as endangered, threatened, sensitive, candidate, or monitor species. Colonies of the great blue heron (Ardea herodias), a state monitor species, are known to occur within two miles of the study site in the vicinity of Springbrook Springs and the Black River Corporate park. Great blue herons feed on aquatic and marine animals found in shallow water, as well as mice and voles found in upland fields. Great blue herons may use the wetland's hydrologic source, Springbrook Creek, for foraging. It does not appear that they use the area for nesting and, therefore, the project in not likely to adversely affect the species. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 10 May 2001 A bald eagle (Haliaeetus leucocephalus) nest is located on Mercer Island, north of the study area. Bald eagle prey on various species, including anadromous and warm-water fish, small mammals, carrion, and waterfowl. Bald eagles may forage in Springbrook Creek, but are unlikely to use the project area wetlands. Coho salmon (Oncorhynchus kisutch), a candidate for listing in the Puget Sound area by the National Marine Fisheries Service, may occur within Springbrook Creek(E. Higgins, City of Renton May 15, 2000 Pers. Comm.). Since there will be no impact to wetlands as a result of this project, it is not likely that the coho salmon will be adversely affected. MITIGATION MEASURES As mitigation for the widening of the existing drainage pond footprint and other activities within the wetland buffer, the creation of approximately 10,046 square feet of buffer plantings are proposed outside of the site fence line to enhance the existing wetland buffer. Two enhancement areas are proposed: the abandoned drainage pond on the north side of the site, and the southwestern buffer area adjacent to the improved drainage pond. Within the proposed buffer enhancement areas, shrubs and trees-would be planted in groups designed to duplicate and supplement the plant communities in the surrounding wetland and buffer areas, as shown on the planting plan. Plant species include black cottonwood, Sitka willow, red elderberry, and salmonberry. Planting in the buffer enhancement areas would be done by hand to minimize impacts to the adjacent wetland. Plant species to be used in all mitigation would be commercially available from local sources and native to the Puget Sound region. The proposed buffer enhancement areas would be monitored by a qualified biologist and maintained by the Olympic Pipeline Company for a five-year period which will begin following planting. The landscape contractor will guarantee 100 percent plant survival at the end of the first year. A yearly report will summarize the inspections and monitoring and any necessary remediation requirements and actions. Performance Standards A set of performance standards has been established to ensure the success of the buffer enhancement areas and are detailed below. Monitoring results will be compared to these performance standards. The buffer enhancement plan will be considered successful if the monitoring results show that the performance standards have been achieved at the end of five years following construction. These standards are based on recommendations in the King County Sensitive Area Mitigation Guidelines (A.Mockler, 2000). Plant Cover and Survival ■ Cover: 60 percent by Year 3 and 85 percent by Year 5 ■ Survival: 85 percent by Year 3, or demonstrate that species diversity and distribution mimic reference standard wetlands. Hydrology Performance Standards Toleration of a range of 2 to 12 inches inundation from March 1 through May 15, on average. This plant community can tolerate a flashy hydroperiod. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 11 May 2001 MONITORING The objective of the monitoring program is to ensure that the buffer enhancement areas will be successful and will fulfill the functions for which they were designed. Post-construction monitoring will be performed for vegetation cover, survival, and wildlife for a five-year period following successful installation inspection. Post-construction monitoring visits will be completed twice-yearly in April and August. Data collected during the monitoring period will be used to determine whether plant cover, survival, and hydrologic regimes are in accordance with the goals and performance standards. If any performance standards are not met, all or part, of the contingency plan may need to be implemented. Post-construction monitoring reports will be submitted to the City of Renton by October 1 of each monitoring year, starting in the year of successful installation inspection. Monitoring Method Photographs with descriptions (including date encoding and compass bearings) will be used to provide a visual perspective. Photographs will be taken twice annually (April and August) at permanent sampling points. Photographs will include project pans covering the entire site, taken at the same location. Wildlife observations will also be recorded during site visits for the monitoring period. The reports will generally include the following. • Survival,vigor, and cover for each buffer enhancement area • Site hydrology, including extent of inundation,water-level fluctuation, saturation, depth to groundwater, function of any hydrologic structures, inputs, outlets • Area conditions (e.g., surrounding land use, use by humans and domestic animals) • Wildlife use, including mammals, amphibians,invertebrates, and birds • Soil conditions, including texture, Munsell color, rooting, and presence of oxidized rhizospheres • Photographs taken from permanent photo-points as shown on Monitoring Plan Map • General site conditions, including vandalism, trash, storm, or other damage, if applicable Vegetation Monitoring A total live count of all trees and shrubs for the buffer enhancement areas will be conducted at the end of the first year as part of the landscaper's construction warranty inspection, and for subsequent monitoring years. The total number of individuals by species will be compared to the original planting design in order to calculate percent survival. Vigor and vitality status will be assessed using the rating scale below. ■ Plant healthy and reproducing ■ Plant healthy and growing vigorously • Plant maintaining and new growth evident—possible symptoms of disease, chlorosis, or predation ■ Plant struggling—signs include dead tips or branches, diseases,pests, or other stressors • Top of plant dead—possible vegetation suckering Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 12 May 2001 • • Plant dead • Plant missing Tree and shrub plantings may not achieve their mature cover potential during the monitoring period. Therefore, percent areal cover alone is an inadequate representation of success. Percent survival is a stronger barometer of success, for if a tree or shrub survives for 5 years, it will very likely attain its growth potential 5 to 10 years later. Percent survival, vigor, and vitality of trees and shrubs will be monitored for five years. The buffer enhancement areas will also be inspected for colonization by invasive and volunteer plant species. Maintenance activities will include removal of weedy invasive species such as Scot's broom and blackberry, so that cover by invasive species does not exceed 10 percent of total cover. Wildlife Observation Wildlife observations will be recorded during site visits throughout the monitoring period. The assessment of wildlife use is not intended to be all-inclusive,but will be a qualitative assessment of observed wildlife. Utilization of habitat features will also be assessed and recorded. The observed quantity and diversity of the species using the mitigation area will be summarized in the monitoring reports. MAINTENANCE REQUIREMENTS Based on the findings of the monitoring program and general site observations made during monitoring visits, some maintenance activities may be necessary to ensure the success of the buffer enhancement areas and achievement of the performance standards. Maintenance activities are considered minor reparations or remedial actions that can be taken without enacting the contingency plan. Any major reparations or remedial actions shall be undertaken as part of the contingency plan. Maintenance activities could include replacement of dead plants according to performance standards, removal of tree stakes, removal of invasive weedy species, and repair of any minor damage occurring as a result of vandalism. CONTINGENCY PLAN The contingency plan will provide for potential major reparations or remedial actions. If the desired mitigation goals, as measured by the monitoring program and performance standards, are not achieved, or if observations made during monitoring visits warrant, upon coordination with the City of Renton, the contingency plan would be implemented. Conditions that would require the need for major reparation or remedial action include large-scale plant mortality and inadequate water regimes. Upon a determination that implementation of the contingency plan is warranted, a recommendation shall be made for the necessary major remedial action. Such actions could include ■ Revegetating the mitigation area with appropriate native species • Modifying the flows into the mitigation area The contingency plan may be enacted in whole, or in part, whenever the action is warranted by the monitoring reports. Contingency plans are prepared on a case-by-case basis to reflect the failed mitigation characteristic and are subject to approval by the City of Renton. All remedial actions will be supervised by the project biologist and would be subject to the same monitoring/maintenance Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 13 May 2001 : requirements as the original approved buffer enhancement plan. The monitoring period may be extended at the discretion of the City of Renton, until performance standards have been met. LIMITATIONS Within the limitations of schedule,budget, and scope of work, BERGER/ABAM warrants that this study was conducted in accordance with generally accepted environmental science practices, including the technical guidelines and criteria in effect at the time this study was performed. The results and conclusions of this report represent the authors'best professional judgment, based upon information provided by the City of Renton and the Olympic Pipeline Company, in addition to that obtained during the course of this study. No other warranty, expressed or implied, is made. • Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 14 May 2001 REFERENCES Cowardin, L.M.,V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service. Publ.#FWS/OBS- 79/31. 131 p. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual.Technical Report Y-87-1, US Army Engineer Waterways Experiment Station,Vicksburg, MS. Federal Interagency Committee for Wetland Delineation. 1989. Federal Manual for Identifying and Delineating Jurisdictional Wetlands. U.S.Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, and U.S. Soil Conservation Service, Washington, D.C. Cooperative technical publication. 76 pp.plus appendices. Higgins, E.May 15, 2000. Personal Communication between Elizabeth River Higgins, senior planner, with the City of Renton, and Becky Gurshaw, biologist with BERGER/ABAM Engineers, Inc. Hitchcock, C.L., and A. Cronquist. 1973.Flora of the Pacific Northwest. Univ. of Washington Press, Seattle. Jones &Stokes, Inc. 1991. City of Renton Critical Areas Inventory. Prepared for the City of Renton. Seattle,WA. Munsell Color. 1988.Munsell Soil Color Charts.Kollmorgen Instruments Corp., Baltimore,MD. Reed, P.B., Jr. 1988.National List of Plant Species that Occur in Wetlands:National Summary. U.S. Fish and Wildlife Service, Washington, D.C. Biol.Rpt. 88(24). 244 p. City of Renton. 1998. City of Renton Potential Wildlife Areas. Renton,Washington. City of Renton. 1998. Title IV, City of Renton Building Regulations. Snyder, D.E., P.S. Gale, and R.F. Pringle. 1973. Soil Survey of King County Area, Washington.U.S. Soil Conservation Service,Washington, D.C. Soil Conservation Service. 1985.Hydric Soils of the State of Washington. U.S. Department of Agriculture, Soil Conservation Service,Washington, D.C. Soil Conservation Service. 1987. Hydric Soils of the United States. In cooperation with the National Technical committee for Hydric Soils. U.S. Soil Conservation Service,Washington, D.C. Washington Department of Ecology. 1997. Washington State Wetlands Identification and Delineation Manual. Publication#96-94. Washington State Department of Ecology. Olympia, Washington. Washington Department of Fish and Wildlife. 1998. Priority Habitats and Species Database. Olympia, Washington. Critical Area Study and Buffer Enhancement Plan BERGER/ABAM,A00063 Olympic Pipeline Renton Station 15 May 2001 APPENDIX A Vegetation list Appendix A Vegetation Found in On the Olympic Pipeline Site Common Name Scientific Name Wetland Indicator Status Trees Sitka willow Salix sitchensis FACW Pacific willow Salix lucida spp. lasiandra FACW+ red alder Alnus rubra FAC black cottonwood Populus balsamifera FAC Shrubs red-osier dogwood Cornus stolonifera FACW+ red elderberry Sambucus racemosa FACU Himalayan blackberry Rubus discolor FACU Herbs reed-canary grass Phalaris arundinacea FACW+ lady fern Athyrium filix-femina FAC stinging nettles Urtica dioica FAC+ bluegrass Poa spp. NL creeping buttercup Ranunculus repens FACW red clover Trifolium pratense - FACU • APPENDIX B Data Sheet 1 DATA FORM 1 WETLAND DETERMINATION Applicant � Application Project Name: f7(ynlpiC. Pp . it[. Number: Name: /Qex0(0 3 State: W,Q County: 'iJ t Legal Description: Township:c2 Range: SE Date: -CT() Plot No.: Section: c3() Vegetation •[list the three dominant species in each vegetation layer (5 if only 1 or 2 layers)]. Indicate species with observed morphological or known physiological adaptations with an asterisk. Indicator Indicator Species Status Species Status ( Trees • ,r- G Herbs 1. &c C.0 C '6�0naT'atrieructa 3r SS AC 4j Q/ 1 7. Ccv� 2,5'�(„k4 �n 16o�a F�L") r- 8 �'co. ..0 I'cci 3. G i �+G. 1.) L J�J Foci 9. C(�2Ehrt Saplings/shrubs Woody vines • 4. t a d -0siV tC cdO5Wbdcd Fig C,►J{' 10. 5. 11. 6. 12. li z of species that are OBL, FACW//and/or FAC: leg Other indicators: [ Hydrophytic vegetation: Yes J No S� 7 Basis: 7 Ip oaci FinaiA.pgG Soil Series and phase) ki o p to v,`Le On hydric soils list? Yes " ; No Mottled: Yes TJ ; No Mottle color: ID*. 57 ; Matrix color: ID`(iQ /1 •-+ /6 �//L Yrz Gleyed: Yes ! No _ Other indicators: S .kckr•-wed 1. rvo4 ch,.n-�e.(S Hydric soils: Yes 17 ,10 ; Basis: (,Q LJ Hydrology L/" Inundated: Yes ; No�� Depth of standing water: -7 Saturated soils: Yes V ; No Depth to saturated Other indicators: I4 O Stain.t.d ( ' uta, 2r- di% ver.cks Wetland hydrology: Yes V/r; No ` Basis: Atypical situation: Yes ; N v . Normal Circumstances? Yes V No Wetland Determination: Wetland ✓ ; Nonwetland Comments: Determined by: rQG ��rS�gtaJ B2 • J - • APPENDIX C Planting Plan