Loading...
HomeMy WebLinkAboutReport 1LEGEND " 0 EXISTING C.TC>I a•SII< (.n<) c•m• "'~" 0 ' UIIJTY 1111' <>! "Ull D .; n, '"'""'"'"' =•• -= .. ""'""'""""·SI[)[ "'""" -WJ0.1ta """ LJW!\ml5rnWl:.Ocrn! ==== =~ CatCRH[ CULl'l:RI ----G•S•'IM l.lOSaor,,;lff) Tl"""' ,n: EOOCor,,.,,."-TCOHC. "'"'"'-"'(MY) ~ ac•o co11m1.1~r ---~GHl'J'""' -....;,o---'"'"'"" '""'"'"' ~rne1:or11!ITS/!fl\J,aa * 0 OlCOJC>JS 1RU PflOPOSED ---""""'"' sr,rn ()<I """"'""' "''"~ w"'"'" -0--Sllf ,. ... '""'" 001 TESC Q fll"""'[Cl!C>I rum '"""" m.a- 6U~l[O UTILITIES IN AREA CAlL BEFORE YOU om 1.a(I0-424-5555 .,,.,...,m,m.s,..,,...AAE,.,,. tHF""O'AV'<-[..--.,t.,.._ """'"""""''"' ........ ,,o,.., """''""·'"""·'"""'""'""''""' • CITY OF RENTON SOUTH 132ND STREET SEWER EXTENSION PROJECT WWP-27-3685 SHEET NO. ' LEGEND SHEET TITLE '°""' () Stantec -···---- 11130 NE 33rd Place, Bellevue WA 98004 phone: (425) 869-9448 www.stantec.com r ··, ... ..i---,,... {'~ ,-e,1,.,_ i,1A,,.,.,.., 1 •'" 'l \ ... . ""'/\ -'0 . /, .. ) '• /., CITY OF RENT/:)N (; _ 1055 SOUTH GRADY)'/,/\ y"· -.--. ;,p -t--;z-' (),,. '·-.I "; RENTON, WASHINGTON !ffl!)57·i',, __;;,-, <._-.... <.,_'l:1' ' ,:,,,, ,,,,,-, v4. CONTACT PERSONNEL JOHN HOBSON PROJECT ENGINEER ' ' • -- ' ' ' ---- ' i·, 'i .,, ,, ,, ,· ' :1 .... ~~ •,-.,., CONSTRUCTION BJ\SELINE PLAN SEWER PLAN AND PROFILE SEWER PLAN AND PROFILE ---- CITY OF RENTON STD. DETAILS MISC. DETAILS TESCDETAILS ----------- PI.NITING & S01L STABILIZATION PLAN ii I I ' ' 1· . .i _11 • ._,.[ • -, I -"'• I '1 ,, 1,1 ! . ' . ' ·,, -~- "· 1 -PROJECT LOCATION ' ....... "-, -N '· i ' I ~ DAVE CHRISTENSEN WASTEWATER UTILITY EMERGENCY (425)430-7279 (425)430-7212 '" 1-000-424-5555 VICINITY MAP---------' Nm ONE CALL SUBMITTED FOR PERMIT 4/02/2014 -~i,,[~ I ii . J 0 8 '.i :< ~- f' " '/ fl' I' I w z :::; w ! (/) "' "' i ' I 8 1 zo~ ·~· i I >-w ' I ' ! ' w 0: >-"' " " I z N i N ::? 8 ~-"' ";:;: -I O'v'Ocl 31V/\l~d ' I '1 !; I~ --1i J'•' I ,~~ I . di:! r.rr--j ! I I I ' I I I I-'- ~I I ' 1--· I _J i I ~ -I ! I I . r ! • I , I fl I i I I I -i- I I I I I I -~;;; I I +·~~a I ii:.i:.~ I I I ..,---I I . .---4 } I ~i - • I • ~ 1 .---1 • , -...s-i ! .--1 I I ! I-·-,ll • ..----- I ! :~1 I 1,· i..1-. ' ' ! -~ ! " "' ~ 0 O ~ !::! ON w 0 J: .... ~ t:: "' ::; ::, "' "'w C. ij~ ! ~i! i -I ' i ! 11-~_-=_---- -- ~ Stantec llllON!ll<dP~"'· ...,.,.,, .. WA'lt'<)'.>I phoo<l<lll/ll\99W-~>ntl'<""11 250 2•oi L 230 22oi 210 ' 2001 190 •• FOR CONTINUATION SEE SHT. 3 'i,/-' , --~:, -·-(\ I 'I I ii: ! 111 ' ,- ! ;~J, 'r( I ~{ ' ,.~ :~'- ·t'.1i i !~" I tll ,, 111 111 '.\::;~ ;;::: i :,: ' I m,j, , 111 _t· -II' ~.""·"·om"' ~k>li1.H -2\J 11':•2'1 67 .. E-22 7 E ~""" • ' I ·I I : ' PE!IS1D.PWl400.I t,,-h I I , ,-,,,,_, ,· 'iii : I-'"" -· :t Im , FOR CONTINUATION SEE SHT. 3 0 SEWEii CONN~CTlflN lOCATIONS TO BE DETERMINED 11>1 flELLl W,TH PffOPf,Rl V OW>IFI! J ____ _ I -1----: ..................... r»u-,rl>IC•o.07,l'l"fri- SCALI:: W O )() ~-----........ ,-,.,1-- ('!Ef) '" I NE 13-234 !atl[ ~ CO<NU:l>lM (l'IP) PER SlD. ! <05., i -(TI,) 1,--~ ~ LF ,t:: ;-CLnN)7!Tm1r ~ _: ~ SSMH Qi 4r., STA, 2t00.~ 11111-=.ao E:•215.40 N E:•215.IO SC S5MH 82. M'<I - 1 5T.r.. i+J3.1l -211Ulil, 1£"713.70 IC-21,i..oo ·- ,· '"";~'i , I I -1 .. ~_-_ .. _ 1._ l'tllr ........ ~ -;/1-+-.c -!...!!~P~~"!!!~ '-/ ' .................... _)/ ---~ F"f) - -.i; WIH<lll ~ sr, ~"'"' -221.1111 tt:•212.ffl N l[-212.e" 1Edl2.'f [ ' I I !• I ; I I >c,-.·};(·: . . ( ·,, I ., j ,/i~r?:io,/ / i I' I,~, I( ' r -'fi, ., SUBMITTED FOR PERMIT 4/02/2014 ~ ··-~:--·:--::;I::_·::· . . ' . . .. ' ' ,. .. ~" ~ .. .e,'ef<;4 -~~--~:-4• c,o,-. ~ RlNTON SEWEREXTENSIONPROJECT _ "" --l!,IITUM • ~ 1/NOJ•Ul NO "8.iSIOO I.a-,, -__ <;, I .·:-~ I ~ r1oona..,.;s,,1oroo/l'•""'" """' """" SEWER Pl.NI /IND PROFILE L__ ,·-20· ......-:~ 4JlD CITY OF :l__j0UTH132ND8TRFFT E= ""''cl~~1 i __ :z;,....------· ~ _ l:'.'."-•y.!_ , 1 • ,, ,1 H , . . , ~ g ! I i~ ,, I ; ! ,. :: •· l· ~ ~: i:t:1: di ' I ' I '. '·' ·, i i ! ! ' ~~ '• =~ !l ii =! f' .. i! H !. ·' \ i Jtl- • & § " 3 " 0: ,... • 0 0 z " ~~ Q " i§ C N z wO w i I= ;, • X w ' :i= I-z .. :i= ~ 5 :, a: w "' w " 0. ' ' ,-' }~=~~~;;· :t 11, 1, 1, 1' "JI • ·' "! ,, .1 0 ;i d ; ~~~ ·~r ::c: ~ , • ., i~ 1~· s~. z: -l~ ,i i~§ -~~ <t; \\ . ~ .. ~ ~. ~·~ ·~~ ~ r J ~ .,~ ·r >- i ·~: 1J ~ ~ "! ii8 1-!" ,~ >a·~z:a: ~1 "' : .• c( i! 1~~ti(/) • ,-0 -;i Hi ~ I ii 1~i ~ I .•• h, < ' 1,T· >--,-"oi ~; (/) !! .!: ! CK" ""'°' ---"'-"'"'"" """"'-~""""""' -... ,... .. ,_,,._ OOIO'l,CfJ(I-- mit~ ... ~~ ..... ~ TRENCH DETAIL FOR GRAVITY MAIN G) (UNDE~.P~~!i4£NT) __ 6 NTS ,.--. (I'<> ........ ffll c,.-,o"'m-,...._) () SECTION A-A , . ....,_e;.o,...,.,,,-"""""'""'"-' .... ...,......,Mll ._,.....,. WB'V ..... .., '"'"-~IO!aU"" co, ECIJN._ : ~i~_i:;.:;:;:;.-:~:: ffi PIPE CASING DETAIL Stantec ll1lONF1ltdl'i>c,,-W~'l800l """"'"(l11186!l-94411WWV<,w,,lot.eoo> EB """"'"'"""" ____ / OA"""'-(IY",I r~-l lf~~~~ .... ""oo::::" TRENCH DETAIL FOR GRAVITY MAIN (UNDER GRASS/ lAN0SCAf'1NG) -----··rs ~ ,,, / ~ -j' ~ .\ ··-··········-//" rn·-------1 CHAIN LINK FENCE PLAN '" END DR CORNER (BRACE) POST TENSION WIRE TENSION WIRE - rT"'"""'"""'",~~WB/W'"""" LJ U'2._ CONCRETE MST -BASE rTYP) ffi CHAIN LINK FENCE PROFILE 6 "" -~ "' ~SI\W ,s. Nfll>D l·~:"..:._I -~-® s:.,;;;;r--~-. ...,.,....fl!IID(fA<E•/ ,; .. ""'"' ar, OF"""°"'"' Ml< ,._. '""w..a""' ,.,.,._.....,, ~~i;<,.;,~ E~~.F..E,:..' -~· """-""'"""" --·-1 -~=~~ 'LT] \ ~ ~ }l ' ' ··-·;;·•·· .. · \ .. · . ( ,._,,.,."' «-><~ """'°' "-"'""""' --(___=, ~ ~"' <---""""""""-CM.\] ::'~"':,,:,: 1 l CD SAD[?L,E MANHOLE DETAIL "' --+-· '---j I~, __ I ),·_ -. __ ' • ! -... \ .. .: - ·. ···----#a··_ . : -. ·_ - i--- • .4, .• . • '·. ' .• . .' ... ' . : •. ·~-. ·.. . . . ·. ' .-. ~' --·-- 1 -, . l .. , .. ·. : ;: --1 CROSS SECTION PROFILE ;R NIS --.-"- llil.ll..:... CONTRACTOR TO PRO\/IOE COI-INECllON BE"fm:EN ANCHOI< AND CASING TO Pl1£\IUIT SI IPPING D\JRING INST ALL/1110~ STEEL CASING ANCHORED {6\ _ _Ip CONCRETE BLOCKS Q7 "' CITY OF Rl:.N!ON SOUTH 132ND STREET SEWlH EXTENSION PROJECT Pkl•olog/llu!dlog/~uoJ,c WoM<, O.o\ MISC. DH AILS SUBMITTED FOR PERMIT 4/02/2014 ' -:=-~ , Fr •. , I ;j ' ;, ~ !!JI ,1 ! ~ l, " ! w ' 11 i : 0 w u g I I~ i z w ' ! . ~, U• ~, . i~ I 5' ~ I I ie'i ~ a, ' . ~ ' ' ~ QC ' w !:; I a: ~ ~ w 0 ~ F, u• w .... 0 QC <L a, u . -------· -T-- i ~ o ~ a ~ ~ ~ " I ' . ..., NE 13-23-4 I / / // i'fir))(i /// / ~· ~ I ' ' X .r { ' I J .: I i \ ,J._, I I ( ~ ii I . I ' / I \ I ' .. I I ~ I \_ \·\ ( ,,r---J ____ t_ .,( ! \I l~~i ~ SPJ !: 1 · ,:, >\: \-._ \ \ V l i i -41 .i ~ 1 r.1 ?:::. , \ '· .. ·.\~\ '{i.\;1\0\.·\\ I'•·-·--~· \'• \ \ \ ',/~/ \ i \f:\ \ ', \ \ , .1 11 · 1 f Ii~ ~"-\ _:,_:, \ ! 'J_i_ f ~r \!'"-~ -,;f' .,,, _ I I I I /. , I ' I ---_:-~ . "'"' I 1 , I / '/ i/1 ,,·;/ .. '; ' 'f ,--__ _\':?::;> / / / // ,{/ /, <~;;;;;?:;/.)ii / I f' \\ ~ • I >.: /---;::12~"'"';,-I {cj ,k ::;:~-;./;/,\(/./ I I I )' / ) I r V"' /';f}f;,-;:,: ~~.!:> ~_at,,;;..;,,>;:.( //Si,,,•// c"";r/ I i\ - I I / ...... / <1,;il" ' . . if;ffe· .. t~;. ,::-;, /::;,•i::,m;~;:;,:::-.V ., \ \ \. \. / "1/lj/.·/V y---· -~"p_:-~~-'::::-_--_::_~ __ ;;---:_-;:~·s~oPL.N<S / ;: -V I , \ '-. \-\. l I' /'/.;.. ., -. ,~~~-::--_:::_;--;:::--~.;;::'.--' ,./'' /~/~ ' \ \ \ ..... --....__:,> 11!' ·t;./ ~/t~-..,-\ \ '\ (" --/;,-:;:;/ // //,,/ \ \.. --.\\\· I.· • ;7'/',~.J_., I I///) I 0. < / . -/. -----'--\ ---~~ ~=·c:.-.JJ_,-:..../-:,-L._/ _,./-~-/ ,' __.,.....,--~,/·' ... N PLANTING & SOIL STABILIZATION PLAN 5CAU , • 10· I ! I I ! · !i I !----Ji I I i i ~-~-j-- : ;, : I ,e,.-~..-:~-·- / I h-'llotl""1 I 230! I! I I i : !· I IL-r--·1 I i I : 220 : ! ~-------~fR I ! GlJ T -i '--l / : ~~ : ' / I I ·'-.-..._/ : : 210·---1 : , I 1! I 200 I : , I ! ,_ 7+00 PLANTING & SOIL STABILIZATION PROFILE Hm>OMTAL """'--' ,· -,a· VERTICAL SCA(.£, 1· • ~- ! ! I I ' ' - .3+00 • PLAN flNG NOTES Sl-1RUO ~1-'fCffS WILL SE PLANTED ON 4 10 5 ffH CENTERS IN ORO(R lO REDUCE l,IQIHAI.ITY. A LATE rAll f'LANT INSTALLAllON SCHEOULE IS RECOt.lMENOEO (OCTOEIER TO NO\IEMBER). PL.o.NTS SHOULD NOi tlE INSTAil.ED DURING OR IMMEDIATELY BEFORE FREEZING 'll(Anll"f'I All. REMAINING BARE SOILS WITI11N THE RESJOl;:AllON AREA WILL BE SEEDED 'MTI-1 AN APF'R0\/10 'IATI\IE SEED MIX SOIL STABILIZATION NOTES MINIMUM 12" THICK LA'TT:R Of 2" TO •• Sil(() QUARRY SPALi 10 8( PLACED AND COMPACTED INTO !HE EXISTING SUBGRADf SDII_S IN Tl-IE AREA snow ANU AROUND PIPE QUARRY SPALL SHALL EXTEND A MINIMUM OF ~-001'1-1 SLOPE or 'M-IERF. THE SEWER PIPE EXTENDS FRQl,I TI![ ~LOPE ANO 0\/(R THE SffiEM.I. QIJARRY SPALL SHAll. fXllNU A t.llNll,IUl,I OF 3" IN llOnl DIRECTIONS FROM Tl1E EDGES or THE ~IPE. Tl1E QUARRY SPALL SHALL BE COMPACTED USING AN EXCAVATOR SUCKET OR HO-PACK AND 101'SOIL/VEGETATION MAY BE PLACED O\IER THE ROCI< If NECESSARY SIJRCI--IARGE LOAIJS, SI.JC:H AS SOIL STOCKPILES ANO H(AVT" [QUll'MENr, SHOULD REMAIN AT LEAST 1s· FROM IHE EDGE Of" WE STEEP SLOP(S 1-XlFNDING INTO Tl1E STREAM AREA [XC[Pl AS N([O[O 10 f_XCA\/A TE ANO PLACE Tl1E S[W[R um .. PLANTING SCHEDULE S-,C,, lst>£Nl"1C N .... E COMM~ NA~E i l>«llCAlU< I Slzt ~ St<owes: •·-a· o/1; • """' <'"''"''"m V..o Moo!• I r.c • """"'""'""'"'l"'o c,,..,ro e ""''· '""'"""'" S<ou1 .. • ..... . 2~on""''°'"" 2l'O"on""''°'"'"' 211"'on '""'"'"'"' I'" 2 9"'"" '"''""'"' 6 "" -~ N/>, a Sombu,u, r,-,,.. ft.0 -... , -~-~----~ ... ,. ;-1•· SIHL c,,sa-lG ~. ~""'°' {nu•• _,. 3 ____ OO~TY~AIH /7.7/v-'iZ/P.77• ,,~----, ..•. OJ/J!llY '-l-,. /,, ,O,AlL ' . " "'-:i.:"'t /" ' --\l" DEPTH "' SOIL STABILIZATION DETAIL "' -~ 1!£MAAKS "'"'"' ~n euuAi,, lllWlf on<WAllY "'"'"' on EWAIIY rl<"'OC OD' EWALI Y #}"; SUBMITTED FOR PERMIT 4/02/2014 ~ .•:·,~':'::;;.·_:1;. 1_· ' &.-,-·~/,tl ~ ..... ,i~,-~i ,, >-ho'" ] ''1~~,1 I .. b.~~hH r lI-~ ~!~Jl!~f o -·1•,s1mi-<M-1a ,....,.,..,ac,'°'" . ------·- SCAL[ ·~ RE\,SSIO~ ,- _ _L::_ -==:c~ l ~ ®-;R CITY OF RFN fON P1no0o,1/Ruad;nq/P,bt,c WoCd llo~l SOUTH 132ND STREET SEWER EXTENSION PROJECT PLANTING & SOIL ST~LllA. TION Pl.AN I~;_;: i _g CITY OF RENT( DEPARTMENT OF COMMUNITY. & ECONOMIC DEVELOPMENT MEMORANDUM Date: March 9, 2016 To: City Clerk's Office From: Sabrina Mirante Subject: Land Use File Closeout Please complete the following information to facilitate project closeout and indexing by the City Clerk's Office Project Name: John Stewart Side Sewer Extension LUA (file) Number: LUA-14-000453, ECF, VAR Cross-References: AKA's: Project Manager: Kris Sorensen Acceptance Date: April 15, 2014 Applicant: John Hobson, City of Renton Owner: City of Renton Contact: PID Number: 2144800535 ERC Determination: DNS-M Date: May 5, 2014 Anneal Period Ends: May 23. 2014 Administrative Decision: Approved with Conditions Date: May 5, 2014 Anneal Period Ends: May 23, 2014 Public Hearing Date: Date Appealed to HEX: By Whom: HEX Decision: Date: Anneal Period Ends: Date Appealed to Council: By Whom: Council Decision: Date: Mylar Recording Number: Project Description: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8- inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer olantina olan. Location: West of 8223 S 132nd St Comments: ERC Determination Types: DNS -Determination of Non-Significance; DNS-M -Determination of Non-Significance-Mitigated; DS -Determination of Significance. STATE OF WASHINGTON, COUNTY OF KING } AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Linda M Mills, being first duly sworn on oath that she is the Legal Advertising Representative of the Renton Reporter a weekly newspaper, which newspaper is a legal newspaper of general circulation and is now and has been for more than six months prior to the date of publication hereinafter referred to, published in the English language continuously as a weekly newspaper in King County, Washington. The Renton Reporter has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the Renton Reporter (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a: Public Notice was published on May 9, 2014. The full amount of the fee charged for said foregoing publication is the sum of $98.00. / /f:ZlR( lff /lftz.. daM. Mills Legal Advertising Representative, Renton Reporter Subscribed and sworn to me this 9th day of May, 2014. ' 0 -, . '(.-if,_L,,_ l '8·1k>i.,n_.a_ "'--- Kathleen C. Sherman, Notary Public for the State of Washington, Residing in Buckley, Washington f ~,-,,•:"'J"S~t,~;;\ f. \ . '. \ ·,\·. \ .. \ ',' \,_,>,~ NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMffTEE RENTON, WASHINGTON The Environmental Review Committee has issued a Dctcnni- nation of Non-Significance (DNS-M) for the following project under the authority of the Renton Municipal Code. 132ND Sewer Main Extension Variance LUAl4-000453 Location: City of Renton requested SEPA Review and Administrative Critical Arca Variance Review for a 775-lin- eal foot extension of public 8- inch sewer main. The project location is within the public right-of.way of S 132nd St and across a vacant pa.reel (PIO 2144800535) with a Class 4 stream and buffer. The sewer would cross the stream 8 feet above the stream and will be contained within an 18·inch steel casing. 902 sf of stream buffer will be impacted. Buffer mitigation is proposed. Appeals of the DNS-M must be filed in writing on or before 5:00 p.m. on May 23, 2014, together with the required fee with: Hear- ing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Ex- aminer are governed by RMC 4·8-1 l O and more infonnation may be obtained from the City Clcrk"s Office, ( 425) 430-6510. Published in the Renton Reporter on May 9, 2014. #I05205l. RECEIPT EG00023995 BILLING CONTACT John Hobson City of Renton -Wastewater Utility 1055 S GRADY WAY RENTON, WA 98057-3232 REFERENCE NUMBER FEE NAME LUA14-000453 PLAN -Environmental Review PLAN -Variance Technology Fee Printed On: 5/28/2014 Prepared By: Kris Sorensen TRANSACTION TYPE Fee Payment Fee Payment Fee Payment Transaction Date: May 28, 2014 PAYMENT METHOD Interoffice Account Transfer Interoffice Account Transfer Interoffice Account Transfer SUBTOTAL TOTAL AMOUNT PAID $1,000.00 $1,200.00 $66.00 $2,266.00 $2,266.00 Page 1 of 1 FINANCE AND INFORMATION SERVICES DEPARTMENT DATE: TO: FROM: SUBJECT: MEMORANDUM May 28, 2014 Casaundra Commodore, Finance & Information Services Department Kris Sorensen Re: INTERFUND TRANSFER REQUEST Instructions: Please note that failure to provide all digits will result in processing delays. All Signatures and correct documentation must be included. Please prepare the following inter-fund transfer: D t epar men tCh an!e d Account Number Project, function, task, sub-task Description 426.465500.018.594. 35 .63 .OOO/U45500 South 132no St Sewer Extension Environmental fee 4 26.465500.018 .594.35 .63 .OOO/U45 500 South 132nd St Sewer Extension Variance fee 4 26.465500.018 .594.35 .63 .OOO/U45500 Technology fee - / A ,f ) Total *Char2ed Deoartment Authorization*, .,· (/ A/ APPROVAL SIGNATURE: /' ~.,.,,--j, -/1 \._.../" "1 Printed Name _D'-'-a_vi_d_C_hr...c:.is:.cte'-'n"-'s'-'-e-'--n _____________ Date May 28, 2014 CREDIT: Amount $1,000.00 $1,200.00 $66.00 $2,266.00 Account Number Project, function, task, sub-task Description Amount 000 .000000 .007.345. 81.04 .000 South 132nd St Sewer Extension Environmental fee $1,000.00 000.000000.007.345.81.16.000 South 132nd St Sewer Extension Variance fee $1,200.00 503.000000.004.322. l 0.00.000 Technology fee $66.00 . Total $2,266.00 Reason: Note: Documentation to support this transfer request must be attached and all signatures are required. Cash Transfer Forrn/Finance/bh Revised 01/09 Billing Invoice EG00023995 4{,55co GL Number: 42~018.594.35.63 BILLING CONTACT John Hobson City of Renton -Wastewater Utility 1055 S Grady Way Renton, WA 98057-3232 Phone: (425) 430-7279 REFERENCE NUMBER LUA 14-000453 The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PIO 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest comer of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. West of 8223 S 132nd St; PIO 2144800535 Department: CED -Planning AR: Eden Invoice: FEE NAME/ GL Number PLAN -Environmental Review 000.000000.007.345.81.04.000 PLAN -Variance 000.000000.007.345.81.16.000 Technology Fee 503.000000.004.322.10.00.000 SUBTOTAL TOTAL Created On: 5/28/2014 11 :30:26AM Prepared By: Kris Sorensen 425-430-6593 Amount Due $1,000.00 $1,200.00 $66.00 $2,266.00 $2,266.00 Page 1 of 1 RECEIPT EG00023995 BILLING CONTACT John Hobson City of Renton -Wastewater Utility 1055 S GRADY WAY RENTON, WA 98057-3232 REFERENCE NUMBER FEE NAME LUA 14-000453 PLAN -Environmental Review PLAN -Variance Technology Fee Printed On: 5/28/2014 Prepared By: Kris Sorensen TRANSACTION TYPE Fee Payment Fee Payment Fee Payment Transaction Date: May 28, 2014 PAYMENT METHOD nteroffice Account trransfer nteroffice Account trransfer r;iteroffice Account ransfer SUBTOTAL TOTAL AMOUNT PAID $1,000.00 $1,200.00 $66.00 $2,266.00 $2,266.00 Page 1 of 1 FINANCE AND INFORMATION SERVICES DEPARTMENT DATE: TO: FROM: SUBJECT: MEMORANDUM May 28, 2014 Casaundra Commodore, Finance & Information Services Department Kris Sorensen Re: INTERFUND TRANSFER REQUEST Instructions: Please note that failure to provide all digits will result in processing delays. All Signatures and correct documentation must be included. Please prepare the following inter-fund transfer: D epartment Ch ar2e d Account Number Project, function, task, sub-task Description 426.465500.018 .594 .35 .63 .OOO/U45500 South 132"" St Sewer Extension Environmental fee 426.465500.018 .594.35 .63 .OOO/U45500 South 132nd St Sewer Extension Variance fee 4 26.465500.018 .594.35 .63 .OOO/U45500 Technology fee / . ,/\ ;f J Total *Chari>ed Denartment Authorization* . , i/ A/ APPROVALSIGNATURE: / (/ , -./I - --'--------',.,) Printed Name _D_a_vi_d_C_h_r_is_te_n_s_e_n _____________ Date May 28, 2014 CREDIT· Amount $1,000.00 $1,200.00 $66.00 $2,266.00 Account Number Project, function, task, sub-task Description Amount 000.000000.007 .345.81.04.000 South 132nd St Sewer Extension Environmental fee $1,000.00 000.000000.007 .345.81.16.000 South 132nd St Sewer Extension Variance fee $1,200.00 503.000000.004.322. l 0.00.000 Technology fee $66.00 Total $2,266.00 Reason: Note: Documentation to support this transfer request must be attached and all signatures are required. Cash Transfer Forrn/Finance/bh Revised 01/09 Billing Invoice EG0002399:._ ,;,·r:· .,.S City of. -----~-"' /:ii --,',(········· .1 ~ s1Il I vIJ 4l,_s-5oo GL Number: 42~018.594.35.63 BILLING CONTACT John Hobson City of Renton -Wastewater Utility 1055 S Grady Way Renton, WA 98057-3232 Phone: (425) 430-7279 REFERENCE NUMBER LUA 14-000453 The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PIO 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52, 143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. West of 8223 S 132nd St; PID 2144800535 Department: CED -Planning AR: Eden Invoice: FEE NAME/ GL Number PLAN -Environmental Review 000.000000.007.345.81.04.000 PLAN -Variance 000.000000.007.345.81.16.000 Technology Fee 503.000000.004.322.10.00.000 SUBTOTAL TOTAL Created On: 5/28/2014 11 :30:26AM Prepared By: Kris Sorensen 425-430-6593 Amount Due $1,000.00 $1,200.00 $66.00 $2,266.00 $2,266.00 Page 1 of 1 CITY OP RENTON DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT -PLANNING DIVISION AFFIDAVIT OF SERVICE BY MAILING On the 9 day of May, 2014, I deposited in the mails of the United States, a sealed envelope containing Sepa documents. This information was sent to: . . N" r_a''imdieii; : "<•.'.'" :: . . Agencies See Attached Owner, applicant, parties of record See Attached (Signature of Sender): ' '''""\\''''' STATE OF WASHINGTON ) ,:'"'~\.LY ~11111 )SS -~11 COUNTY OF KING ) 0 ft.; ~, ~. --f~ "'O ."' : I certify that I know or have satisfactory evidence that Sabrina Mirante ~ % o' "•lie. : signed this instrument and acknowledged it to be his/her/their free and voluntary~f14}flbf1,IS ~d.-iiurposes ;.('I. '•111,\\'"""'"o;: ':'\.o mentioned in the instrument. *4SH\NG Dated: IJU'tj q. :lot'( I Notary (Print): ___ ___./tp'-'-'-'/.,4-.....____,_'.f.:::ew"""--":'::fS~------------ My appointment expires: A-'a u....Y--d-1 :2.D 1 "l 1-V-A 1'1-oooL./S3 template -affidavit of service by mailing Dept. of Ecology ++ Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 WSDOT Northwest Region* Attn: Ramin Pazooki King Area Dev. Serv., MS-240 PO Box 330310 Seattle, WA 98133-9710 US Army Corp. of Engineers* Seattle District Office Attn: SEPA Reviewer PO Box C-3755 Seattle, WA 98124 Boyd Powers * * * Depart. of Natural Resources PO Box 47015 Olympia, WA 98504-7015 KC Dev. & Environmental Serv. Attn; SEPA Section 35030 SE Douglas St. #210 Snoqualmie, WA 98065 Metro Transit Senior Environmental Planner Gary Krledt 201 South Jackson Street KSC-TR-0431 Seattle, WA 98104-3856 Seattle Public Utilities Jailaine Madura Attn: $EPA Coordinator 700 Fifth Avenue, Suite 4900 PO Box 34018 Seattle, WA 98124-4018 AGENCY (DOE) LETTER MAILING (ERC DETERMINATIONS) WDFW -Larry Fisher* 1775 12th Ave. NW Suite 201 lssaquah1 WA 98027 Duwamish Tribal Office* 4717 W Marginal Way SW Seattle, WA 98106-1514 KC Wastewater Treatment Division * Environmental Planning Supervisor Ms. Shirley Marroquin 201 s. Jackson ST, MS KSC-NR-050 Seattle, WA 98104-3855 City of Newcastle Attn: Tim McHarg Director of Community Development 12835 Newcastle Way, Ste 200 Newcastle, WA 98056 Puget Sound Energy Kathy Johnson, 355 110<> Ave NE Mailstop EST llW Bellevue, WA 98004 Muckleshoot Indian Tribe Fisheries Dept.* Attn; Karen Walter or SEPA Reviewer 39015-172nd Avenue SE Auburn, WA 98092 Muckleshoot Cultural Resources Program* Attn: Ms Melissa Calvert 39015172"' Avenue SE Auburn, WA 98092-9763 Office of Archaeology & Historic Preservation* Attn: Gretchen Kaehler PO Box 48343 Olympia, WA 98504-8343 City of Kent Attn: Jack Pace Acting Community Dev. Director 220 Fourth Avenue South Kent, WA 98032-5895 City of Tukwila Steve Lancaster, Responsible Official 6200 Southcenter Blvd. Tukwila, WA 98188 *Note: If the Notice of Application states that it is an "Optional DNS", the marked agencies and cities will need to be sent a copy of the Environmental Checklist, Site Plan PMT, and the Notice of Application. **Department of Ecology is emailed a copy of the Environmental Checklist, Site Plan PMT1 & Notice to the following email address: sepaunit@ecy.wa.gov ***Department of Natural Resources is emailed a copy of the Environmental Checklist, Site Plan PMT, & Notice the following email address: sepacenter@dnr.wa.gov template -affidavit of service by mailing Easy Peel® Labels Use Avery® Template 5160® • • < • «•·········· Rebecca Saur Stantec 11130 NE 33rd Pl, Suite 200 Bellevue, WA 980041465 Etiquettes faciles a peler Utilisez le gabarit AVERY® 5160® I I I J .. -Feed Paper - Bend along line to expose Pop-up Edge™ John Stewart 8223 S 132nd St Renton, WA 98178 • Sens de chargement Repllez a la hachure afln de : reveler le rebord Pop-up"' ; @ AVERY® 5160® l Douglas Warne 2125 !st Ave, #2303 Seattle, WA 98124 www.avery.com 1-BOD-GO-AVERY I I ... NOTIJCE OF ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON·S1GN1f1CANCE · MITIGATED jDNS-M) P05TED TO NOTIF'f INTERESTED PERSONS OF AN ENVIRONMH/TAl ACTION PftOJECT NAME: PROJ<CTNUM!E!I, lll"' -or Mala E>;ten,lan V•n,n"' WA14-0004S3 LOCATION PIO ll«aM~S OE50IIPTION: Tho ,pplk:ont, 1M Oty DI 1141nton, Is req11ff1in1 EnYlronrnenlal (SI.PA) -ow aod Admlnbt.-.Uvo Crttl<>I Anl, v,ri,nco Ro•low for I TIS in .. 11...,1 exton1lan of P•bll< I-Inell,_.., rnoln ond IIIO<lot.d ,ppu,...nonu, to 5 Hlnd StrHI, WHt ol ll<tnt"" A•• 5 and out of 5 Lanptan Aood, lrum 1'10 .OUlh. Tho proje<t loutlon Is within tho publl< rl1ht.o!--way of 5 132nd St and ar;rou • YI"""' .,..t.,tely ownod pa,ad IPIO Zl.44300535), from ,ou\h to nortll, '11>1 hu ,n un.........i CIUI 4 ,tr...m or,d '"<><i•l•d cr1Uc:1l on1, bolhr, Th• ••cant parul Is St,14l '~"''" h,t 11.l ..:l'dL ar>d '"""d Rnld1ntla~t,I. Tht propo,ed ,..,,, ma"1 <l'OIHI tho llrHm on the .. cant p"""',ty >< 1he 0<>11t11wosl ......... , Df<he ptol•cl 11to, ,.t,o,. tho Unch ,,wer main wii ,ros,. appr,,•!malol, 8 1ft, •b••• tho nrum or,d wHI bo o:,nt,ln•d .. 1,hlti an ll~n<h >1ul c.o~o11, ••pportod"" ollllor old• <JI tho llrHm, ir, l••I• <<>nawlo blo,:li, . ..il nlno lrft> on·>I!• aro pr,,po1od lo IHI rot>lnod. App,o .. m,,t..ly 9CJ2 '~""" root of ot,um b•fh, a,u wHI bo lmpotlod. '-S.pplemontol 51r"'m 5••dV •nd Strum Bullor Mttl1ulon P\an •ro pro,ldod wllh • nr1am blil(" plo,,1fn1 f"on. THE Cm' OF RENTON ENVIRONMENTAL REVIEW COMMITTJ;E (ERCI HAS OCTERMINED TKAT THE PROPOSED ACTION DOES NOT llll,VEA SIGNIFICANT .O.OVEFISE IMPACT ON THE !:HVIAONMENT AppHls of 1he onvln:rnmonlirl d1tormln,1lon mu'1 bt filed In wrltln1 on or bolon, 5:00 p.m. on May 2l, Z014, t<rpthu with 1111! r~ulrod fee with: 11 .. ,lnk E••mlner, Oly ol Aonton, 10SS South Grody W•Y, A""ton, WA U051. /1.!>PUI, to tho E .. mlnar aro gc,vomed by City <>I RMC 4-8·110 and lnformatloi, roprdlnl the appnl pro<HO may b1 ablirlned from tho A1nton dty Cl•rl<'• Offlco, (425) 430.6510. IF ntE ENVIWNMENTAL DETERMINATION 15 APPEAt10, A PUBl!C HEARING Will aE SET AND ALL PARTIES NOTIFIED PLEASE INCLUOETHE PROJECT NUMBER WHEN CALLING FOR PROPER Fl LE IDENTIFICATION. CERTIFICATION I, ~s So~-t:,u,r:;u,,, . hereby certify that 3 copies of the above document ~ were posted in _J__ conspicuous places or nearby the described property on Date: 5/q){'{ Signed:~~ r, STATE OF WASHINGTON 55 COUNTY OF KING blic in and for the State of Washington Notary (Print): My appointment expires: __ ~fti-t"rtJ't-""'V-:""'~l1---~J'""'~'>-'d-D"-"~l~1.,__ ___ _ 1,! Denis Law c· _ __:May:or _______ ... J_gl0i:tu (J May 9, 2014 Community & Economic Development Department C.E.11 Chip11 Vincent, Administrator Washington State Department of Ecology Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 Subject: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION Transmitted herewith is a copy of the Environmental Determination for the following project reviewed by the Environmental Review Committee (ERC) on May 5, 2014: SEPA DETERMINATION: PROJECT NAME: Determination of Non-Significance Mitigated (DNSM) 132"d Sewer Main Extension Variance PROJECT NUMBER: LUA14-000453 Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 23, 2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and information regarding the appeal process may be obtained from the City Clerk's Office, (425) 430-6510. Please refer to the enclosed Notice of Environmental Determination for complete details. If you have questions, please call me at (425) 430-6593. For the Environmental Review Committee, Kris Sorensen Assistant Planner Enclosure cc: King County Wastewater Treatment Division Boyd Powers, Department of Natural Resources Karen Walter, Fisheries, Muckleshoot Indian Tribe Melissa Calvert, Muckleshoot Cultural Resources Program Gretchen Kaehler, Office of Archaeology & Historic Preservation Ramin Pazooki, WSDOT, NW Region Larry Fisher, WDFW Duwamish Tribal Office US Army Corp. of Engineers Renton City Hall • 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT ENVIRONMENTAL (SEPA) DETERMINATION OF NON-SIGNIFICANCE PROJECT NUMBER: APPLICANT: PROJECT NAME: -MITIGATED (DNS-M) LUA14-000453 John Hobson, Sewer Utilities Division 132"' Sewer main Extension Variance PROJECT DESCRIPTION: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave Sand east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8- inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. PROJECT LOCATION: LEAD AGENCY: Parcel Identification Number 214480-0535 City of Renton Environmental Review Committee Department of Community & Economic Development The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-9-070D Renton Municipal Code. These conditions are necessary to mitigate environmental impacts identified during the environmental review process. 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 p.m. on May 23, 2014. Appeals must be filed in writing together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and more information may be obtained from the Renton City Clerk's Office, (425) 430-6510. PUBLICATION DATE: DATE OF DECISION: May 9, 2014 May 5, 2014 DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT May 5, 2014 LUA14-000453 132"d Sewer Main Extension Variance SIGNATURES: Gregg Zi rma Public Works Department ~L--v----- Terry Higashiyama, Administrator Community Services Department Date Date Mark Peterson, 'Administrator Fire & Emergency Services C-£t ,, 's} ,_ .V sl C.E. "Chip" Vincent, Administrator Department of Community & Economic Development 1.-((s /1'-( r I Date Date Lisa Marie McElrea From: Sent: To: Subject: Kris ~~.cnsen Wednesday, April 09, 2014 11:35 AM Lisa Marie McElrea FW: John Stewart SS Extension/ LUA14-000453, ECF, VAR Hi Lisa -Please add to official file. Thanks, Kris From: Fisher, Larry D (DFW) [mailto:Larry.Fisher@dfw.wa.gov] Sent: Wednesday, April 09, 2014 7:50 AM To: Kris Sorensen Cc: Karen Walter (KWalter@muckleshoot.nsn.us) Subject: John Stewart 55 Extension / LUA14-000453, ECF, VAR Hi Kris: I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 <'){{}}>< <'){{}}>< 1 DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT DETERMINATION OF NON-SIGNIFICANCE-MITIGATED (DNSM) MITIGATION MEASURES AND ADVISORY NOTES PROJECT NUMBER: APPLICANT: PROJECT NAME: LUA14-000453 John Hobson, Sewer Utilities Division 132"d Sewer Main Extension Variance PROJECT DESCRIPTION: The City of Renton is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review from Renton Muncipal Code for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535). The sewer connects with a sewer main along the southerly boundary of the property and runs north to 132nd. The parcel has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres) and zoned Residential- 14. The proposed sewer main crosses the stream on the parcel at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. PROJECT LOCATION: LEAD AGENCY: MITIGATION MEASURES: PID 214480-0535 The City of Renton Department of Community & Economic Development Planning Division l. The applicant shall comply with the conclusions stated in the 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 (Exhibit 2). ADIVISORY NOTES: The following notes are supplemental information provided in conjunction with the administrative land use action. Because these notes are provided as information only, they are not subject to the appeal process for the land use actions. Engineering Review: Please provide geotechnical report for the subject project that details the groundwater level. It is also highly recommended to provide the 100 year water surface elevation of the stream crossing. Community Services Review A. Environmental impacts comments: Protect all trees outside the construction limits from construction damage and soil compaction. Repair damage to trees and shrubs as a result of construction activities. Planning: 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o'clock (7:00) a.m. and eight o'clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to the hours between nine o'clock (9:00) a.m. and eight o'clock (8:00) p.m. No work shall be permitted on Sundays. 3. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. ERC Mitigation Measures and Advisory Notes Page 2 of 2 Denis Law .,--.··_ City o -.' -----~M:a:yo:, ___ ................. 1 C Ji, (~1DJtIDIT1 May 9, 2014 Community & Economic Development Department C.E. "Ch ip"Vi ncent, Administrator John Hobson, Sewer Utilities Division City of Renton 1055 S Grady Way, 5th FL Renton,WA 98057 , I .I SUBJECT: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION 132"d Sewer Main Extension Variance, LUA14-000453 Dear Mr. Hobson: _ This letter is written on behalf of the Environmental Review Committee (ERC) to advise you that they have completed their review of the subject project and have issued a threshold Determination of Non-Significance'Mitigated with Mitigation Measures. Please refer to the enclosed ERC Report, for a list of the Mitigation Measures. Appeals of the environmental determination .must be filed in writing on or b.efore 5:00 p.m. ori May 23, 2014, together with the required ·fee with: Hearing Examiner, City of _ Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and information regarding the appeal process may be obtained from the City Clerk's Office, (425} 430-6510. If the Environmental Determination is appealed, a public hearlng date will be set and all parties notified. If you have any further questions, please call me at (425} 430-6593. For the Environmental Review Committee, Kris Sorensen Associate Planner Enclosure cc: John Ste·ward / Owner{s) John Hobson, COR / Applicant Rebecca Saur,Douglas Warne/ Party(ies) of Record Renton City Hall • 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON, WASHINGTON The Environmental Review Committee has issued a Determination of Non-Significance (DNS-M) for the following project under the authority of the Renton Municipal Code. 132ND Sewer Main Extension Variance LUA14-000453 Location: City of Renton requested SEPA Review and Administrative Critical Area Variance Review for a 775-lineal foot extension of public 8-inch sewer main. The project location is within the public right-of-way of 5 132nd St and across a vacant parcel (PID 2144800535) with a Class 4 stream and buffer. The sewer would cross the stream 8 feet above the stream and will be contained within an 18-inch steel casing. 902 sf of stream buffer will be impacted. Buffer mitigation is proposed .. Appeals of the DNS-M must be filed in writing on or before 5:00 p.m. on May 23, 2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and more information may be obtained from the City Clerk's Office, (425) 430-6510. Publication Date: May 9, 2014 Account No. 51067 dnsmpub.dot STATE OF WASHINGTON, COUNTY OF KING } AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Linda M Mills, being first duly sworn on oath that she is the Legal Advertising Representative of the Renton Reporter a weekly newspaper, which newspaper is a legal newspaper of neral circulation and is now and has been for more than six months · x to the date of publication hereinafter referred to, published in e English language continuously as a weekly newspaper in King County, Washington. The Renton Reporter has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the Renton Reporter (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a: Public Notice was published on March 28, 2014, he full amount of the fee charged for said foregoing publication is . sum of $112.00. • , \ _,'Y<;/{j°i' )J/ 7)-)tf,~ . _,. //,J/::/ ;, /// /''/~".-~ ITnda M. Mills Legal Advertising Representative, Renton Reporter Subscribed and sworn to me this 28th day of March, 2014. -, (' , . . ( . ,1~(1 rt,{,·,· 'L l ",Ytc 'l/u, .. ,~ Kathleen C. Sherman, Notary Public for the State of Washington, Residing in Buckley, Washington :,;,.,,,,,,"\\_l,\\\1 -,~ r-R 1!1, ~.... ,si\"l't: l'vt.'1 ''11 :' o-~,.:...,,\,\\\\\\;,;'!/\, ,,,, ~.~ $":,-~ \;.X::::i,)·1 11,V t, .:f.• ./Jj, .;;-_...,_0 ,".t, !, I; J: 4!.J :':"41.,-.J '4. ~ft y ,.51 ' 1 1, /~ "P '::::.'-'' ....... ~ -z. /., ~~;:~9 ,. ~-0~ ,,,. ..J,.. ,,.•-z . .. ·-.,,. ~r:'}~ ,. u ::::-1--:::: 1 .c!..~O ;; (0 J CJ E 'l:-J~V P'~~ "'---=-<== 1~ ~ u , =' -,,,, ,,,,,, 4.\0:JJ /!: 3 ,, "' ............ ,;:_.) -,, s-\\\\\\''''' ~ ~ -:" 11 •11, r,nE o"<" ,,"°-1,,,\\,\\\,,,,,,, ........ :\"OTICE OF ENVIRONl\1ENTAL Of:TERl\11:\ATION ENVIRO:>;MENTAL REVIEW COW\IITTEE RENTON, WASHINGTON The J::nvironmi.:ntal Rcvic,v Committee has issued a Determi- nation of Non Significance Miti- gated (DNS M) for the following project under the authonty of the Renton municipal code Ng Building LUA 14 000092 Location: 60 SW Sunset Blvd. The applicant has proposed the construction of a new 6,090 SF commercial retail and office building The pro_iect site is 12,659 Sr: in size and zoned C/\ Currently a 1,400 sr building on site would be removed Access to the site is proposed via a curb cut from SW Harris Pl. The proposal mcludes 8 parkmg stalls. per RMC 4 4 mm, a minimum of 12 stalls are required for the proposed useK therefore the applicant is requestmg a park- ing modification in order to re- duce the minimum number of purking stalls by 4. Right of way dedication along public streets would be required as would installation of planting strip areas and sidewalks. There are no critical areas located on site Appeals of the DNS M must be filed in writing on or before 5:00 p.m. on April ll, 2014 Appeals must be filed in writing together with the required foe with Hearing Examiner c/o City Clerk. City of Renton, I 055 S Grady Way. Renton, WA 98057 Appeals to the I !earing Examiner are governed by RMC 4 8 110 and more 111format1on mav be ob- tained from the Rent(m City Clerk's Office, 425 430 65 l 0. Publication Date:March 28.2014 in Renton Reporter. #1014702. STATE OF WASHINGTON, COUNTY OF KING } AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Linda M Mills, being first duly sworn on oath that she is the Legal Advertising Representative of the Renton Reporter a weekly newspaper, which newspaper is a legal newspaper of neral circulation and is now and has been for more than six months · or to the date of publication hereinafter referred to, published in e English language continuously as a weekly newspaper in King County, Washington. The Renton Reporter has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the Renton Reporter (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a: Public Notice was published on March 28, 2014, he full amount of the fee charged for said foregoing publication is sum of $147.00. F • ,-/ ·1· )J Y/',£,. ,.· 1.. .. . .·,. ,. ,.,., .,.,. , ~< ,,..., ',.,LJ..>, .,..,.,. ,.., · Linda M. Mills Legal Advertising Representative, Renton Reporter Subscribed and sworn to me this 28th day of March, 2014. -. .< ... , (' (;· ! r.{ I I, Li,,,, , .. J fr i ,10 ci'.,;_ Kathleen C. Sherman, Notary Public for the State of Washington, Residing in Buckley, Washington ,,,,,,,\\\\\\\Ht1 It _,,~ s· "'"'' ' , , , . ........ r. f""lt::1~,!-1.: ,,, S'~v',._,,\,,~\1,1 1,, '4,i, ,,, ::t--,:."" --xc:, ":• I .,:r .,;·~ -~ • ... ,~ t _, ,',,:,:,'!1, ,, ,._ ;1";''1 _ ..• t,:, . {,t,,. I, /I NOTICE OF ENVIRO'.\MENTAL DETERMINATIO'.\ 1<:NVIRON!\1ENTAL REVIEW COMJ\.IITTEE AND PUBLIC II EARING RENTON, WASIIINGTON The Environmental Review Committee has issued a Determi- nation of Non Significance Miti- gated (DNS M) for the following proJcct under the authority of the Renton municipal code CHILD School LlJA 14 000203 Location: 2640 Benson RJ S The applicant is requesting SE- PA. Site Plan and Hearing Ex- aminer Conditional Use Permit Chiklrens Institute fi:}r Leaming Differences (Cll!LD) to be relocated to 2640 Benson Rd. S. The project would remodel a former church and add a 2,239 SF modular one storv buildim.! to accommodate -the ne; school The former l 8.469 SF church building would be re- modeled for school classrooms, kitchen, and staff and student support areas including lX:Cu- pation, speech. and language therapy rooms. Other improve- ments include a children's play area. added parking spaces, landscaping. nx:kery. and street improvements. Drainage. Geo- I. "'1 :if~C.)" f>,..R t' "'.Jl'•J' / ~-.,,., '\ ~ ~ ::.r: ;:~,ct () % z. ,:, ::: 1-§:J 4!'. • ~ ~ 0 ~ ~d.~0 .,, ~ Er--E ~ 'I,, -:;tJ PU~" ..._(off C!J E 1 "11 n_,--= ~ = 1 1,, 4'\~.;::--.,.:_7 ,, lj4 ~ , ........... c;-' :: ,,,, .s'r1•11"\\''''"" .. 11?"--~ ,,,, 4>-E oc '·~" ........... -11 , , ,,, • 111\\\\\\\\\,\.'''"' technical. and Traffic Impact studies are provided. The site 1s located in the R 8 zone and is 175.111 SF in size. Steep slopes arc located on site. Over 150 trees arc to remain Vehicular access would he off Benson Rd S and an emergen- cy fire access would be kept from S 27th St. A modification 1s requested from street improvemems along S 27th Street. Appeals of the D~S? M must be filed in writing on or before 5:00 p.m. on April 11, 2014 Appeals must he filed in wntmg together with the required t'ee with: Hearing Examiner c/o City Clerk. City of Renton. 1055 S Grady WaY, Renton, WA 98057. Appeals to the Hemmg E-xammer are governed by RMC 4 8 110 and more information may be ob- tained from the Renton Cit\- Clerk's ()ffice, 425 430 6510 - A Public Hearing will be held by the llearing Examiner in the Council Chambers. Cit\' llall, on April 15, 2014 at 10:00 am to consider the Site 1->lan lf the DNS M is appealed, the appeal will be heard as parl ur this public hearing Interested parties arc invited to attend the public hearing. Puhlicat1on fJate:March 28, 2014 in Rentnn Reporter. #1014720. STATE OF WASHINGTON, COUNTY OF KING } AFFIDAVIT OF PUBLICATION PUBLIC NOTICE Linda M Mills, being first duly sworn on oath that she is the Legal Advertising Representative of the Renton Reporter a weekly newspaper, which newspaper is a legal newspaper of neral circulation and is now and has been for more than six months · or to the date of publication hereinafter referred to, published in _ e English language continuously as a weekly newspaper in King County, Washington. The Renton Reporter has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the Renton Reporter (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a: Public Notice was published on March 28, 2014, · 'he full amount of the fee charged for said foregoing publication is • sum of $101.50. / / 0'/itl:( ,1? Jllr)f1-- Linda M. Mills Legal Advertising Representative, Renton Reporter Subscribed and sworn to me this 28th day of March, 2014. /J (' -:t-, (, . . / ' \/ / ft'. 't /LLL<.' I'>-l. ....__J Lt: ~ I }i .Ci~ Kathleen C Sherman, Notary Public for the State of Washington, Residing in Buckley, Washington ·, ~\\\\\\\\\\\,,,, . --~~~r\ER! 111 1 .:;:,::.~ LJ' lttfA lfJ .~I.()· ,,.,,_,,\\,·,\\\·,': .. 1A 1 t, ~·""' $''~ t.X::;;;ftt~ I ·l:I :...-:-ll.l:,.p . ~: .'1 -'., :! [Jj .~7~v.; .<...~Ry & 1,,_ ~ ;:;--1:~::'?o ~--z-·~ ,;:,:r.;;:.co:.-·,, ~01-~ t-;;~ z . . ,;. ,,,. ,;;. r. ,;,~ ,.. U ~ >-~ ~ &.. ~}) .::; t:o .: (? E "' -? ,;<.J p\l'o .... : <: =: ~, ,,, q{ ~7 :2 = ,, lti, 4~'\ ~ V' -It II\ ,,.:;:-b...., .:= ,, ,S \\\\\\\"''"' ~, .:: '111 11 .'ATE oY ................ ~.:2 'I\\\\\\\\\,,,-..,, NOTICE OF ENVIROMIENTAL DETERMl~ATIO', ENVIRO:\MENTAL RE\'IF:W f:Ol\11\11TTEE RENTON, WASHINGTO:\ The Environmental Review Committee has issued a Determi- nation of Non Significance Miti- gated (DNS Ml for the followmg project under the authority of the Renton municipal code Sierra (Jomes Variance LUAIJOOl694 Location: 5400 block of NE I 0th St. The applicant is requesting Sf:PA review and approval for a Variance from RMC 4 2 110. regulating front yard setbacks R-4 zone. The applicant is proposing a 20 fhot front yard setback where a 30 foot front yard setback is required per code. due to the presence of a Category 2 Wetland on site A portion of the proposed house would en- croach into the wetland buffer. HullCr avcragmg for a portion of the site ts proposed, with a 2: I butlCr enhancement ratio to accommodate the construction of the home. Appeals of fht DNS M must be filed in writing on or before 5:00 p.m. on April II, 2014. Appeals must be filed in v.·riting together with the required fee with· Hearing Examiner c/o City Clerk. City of Renton, 1055 S Grady Way. Renton. WA 98057 Appeals to the I [earing Examiner are governed by RMC 4 8 110 and more information may be obtained from the Renton City Clerk "s Office. 425 430 6510. Publication Date:March 28, 2014 in Renton Rcportcr.111014694. t.. r• . City of, . . ___ __.__.. 1 1~ ~ I l I (j: rJ OF ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE· MITIGATED {DNS-M) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: PROJECT NUMBER: LOCATION: 132"d Sewer Main Extension Variance LUA14-000453 PID 214480-0535 DESCRIPTION: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel {PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. THE CITY. Of;,BINTON ENYIRONMENTAL REVIEW COMMITIEE (ERCJ_HAS DETERMINED THAT THE PROPOSE.[) ACTIOffbOES NOT HA VEA SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. .. Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 23, 2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by City of RMC 4-8-110 and information regarding the appeal process may be obtained from ~he Renton City Clerk's Office, {425) 430-6510. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING Will BE SET AND All PARTIES NOTIFIED. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT AT (425) 430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION. D.EPARTMENT OF COMMU Y • r¢ Cityof, ------r(P Cl r(·· fl AND ECONOMIC DEVELOPMENT -·~~---U __ ENVIRONMENTAL REVIEW COMMITTEE REPORT AND ADMINISTRATIVE VARIANCE REPORT & DECISION ERC MEETING DATE: Project Number: Project Name: Project Manager: Owner of Parcel 214480-0535 with utility easement: Owner of 132nd Right- of-Way Applicant: Contact: Project Location: Project Summary: Exist. Bldg. Area SF: May 5, 2014 LUA14-000453, V-A, ECF 132"ct Sewer Main Extension Variance Kris Sorensen, Associate Planner John Stewart 8223 S 132"ct St Seattle, WA 98178 City of Renton 1055 S Grady Way, 5th Floor Renton, WA 98057 John Hobson, Sewer Utilities Division City of Renton 1055 S Grady Way, 5th Floor Renton, WA 98057 Rebecca Saur Stantec Consulting Services, Inc 11130 NE 33rd Pl, Suite 200 Bellevue, WA 98004 Parcel Identification Number 214480-0535 The City of Renton is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review from Renton Muncipal Code for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535). The sewer connects with a sewer main along the southerly boundary of the property and runs north to 132nd. The parcel has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres) and zoned Residential-14. The proposed sewer main crosses the stream on the parcel at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. N/A Proposed New Bldg. Area (footprint): Proposed New Bldg. Area (gross): N/A N/A City of Renton Deportment of Commu i Economic Development fRCondA 1 istrative Variance Report & Dedsion LUA14-000453, V-A, ECF 132ND SEWER MAIN EXTENSION VARIANCE Report of May 5, 2014 Page 2 of 19 Site Area: 9,500 sf Total Building Area GSF: N/A STAFF RECOMMENDA T/ON: Staff Recommends that the Environmental Review Committee issue a Determination of Non-Significance -Mitigated (DNS-M}. Project Location Map PART ONE: PROJECT DESCRIPTION/ BACKGROUND A. EXHIBITS: Exhibit 1: Exhibit 2: Exhibit 3a: Exhibit 3b: Exhibit 4: Exhibit 5: Exhibit 6: Exhibit 7: Exhibit 8: Exhibit 9: Exhibit 10: Exhibit 11: -------------------- Staff Report (dated May 5, 2014) 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Appendix A: Project Site Plan; 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Appendix B: Mitigation Plan (and Stream Buffer Planting Plan); 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 Zoning Map Aerial Photo Project Area Site Plan & Elevation Drawing Environmental Checklist City of Renton Maps -Sanitary Sewer System Lines, Printed May 2, 2014 Washington Department of Fish and Wildlife Comment -Hydraulic Project Approval City of Renton Long-Range Wastewater Management Plan of 2010 Advisory Notes/ Review Comments City of Renton Department of Commw , Economic Development ERCandA istrotive Variance Report & Decision WA14-000453, V-A, ECF 132ND SEWER MAIN EXTENSION VARIANCE Report of May 5, 2014 B. GENERAL INFORMATION: 1. Owner of Record, Parcel 214480-0535: 2. Owner of 132"d Right-of-Way: 3. Zoning Designation: 4. Comprehensive Plan Land Use Designation: 5. Existing Site Use: 6. Neighborhood Characteristics: Page 3 of 19 John Stewart; 8223 S 132"d St; Seattle WA 98178 City of Renton Residential -14 dwelling units per acre (R-14) and Residential -8 dwelling units per acre (R-8) Residential Multi-family (RMF) and Residential Single Family Vacant North: East: South: West: Garden and Nursery Business (R-14} Single-family Residential (R-14} Single-family Residential (R-10} Single-family Residential (R-10} 7. Access: 8. Site Area: C. HISTORICAL/BACKGROUND: Action Comprehensive Plan Zoning Annexation D. PUBLIC SERVICES: Land Use File No. N/A N/A N/A S. 132"d St 53,143 sf Ordinance No. 5484 5484 5484 1. Utilities: The project is installation of new sewer pipes by the City of Renton. Date 10/18/2009 10/18/2009 10/18/2009 2. Streets: South 132"d St abuts the northern property line of the private parcel through which the sewer main will be extended. 3. Fire Protection: Fire and emergency services would be provided by the City of Renton Fire Department. I PART TWO: ENVIRONMENTAL REVIEW In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. City of Renton Department of Communir · & Economic Development ERC and Adr1inistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VA~ :E .;...-------~-----LUA14-00~4_53, V-A, ECF Report of May 5, 2014 Page 4 of 19 A. ENVIRONMENTAL THRESHOLD RECOMMENDATION Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials: Issue a DNS-M with a 14-day Appeal Period. B. MITIGATION MEASURES 1. The applicant shall comply with the conclusions stated in the 132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 (Exhibit 2). C. 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 proposal is to create an extension of sewer main approximately 338 linear feet north to south and at the northern extension extend the pipe approximately 436 east to west within the 132"d Street right-of-way. The majority of the 8-inch wastewater pipe would be underground with the exception of the crossing of a Class 4 stream, where temporary grading would occur to install part of the extension that will be above the stream where the ground elevation is lower in elevation. There is S8 feet of pipe that would daylight across the Class 4 stream and associated stream buffer. Approximately 902 square feet of the stream's associated buffer would be temporarily impacted through the proposed project construction. The proposal would limit excavation, grading, and clearing limits within the stream buffer to 7.5 feet on either side of the centerline of the 8-inch sanitary sewer line. Machinery would be used for trenching, clearing, and other related construction activity to install two supports for the daylit pipe and installation of the pipe and related casing. Temporary grading oft he site would occur during construction and the existing grade would be re-established as part of the project. Imported and approved crushed gravel or foundation rock may be utilized when necessary to support new facility structures. All vegetation within the areas proposed for excavation would be mechanically removed and disposed of. Native soil material would be used as backfill when possible. All excavated materials not utilized as backfill as well as displaced materials resulting from trenching activities would be exported to an approved disposal site. Impacts to the stream and the associated buffer are anticipated to be temporary as the only impacts would be during construction Mitigation Measures: No further mitigation required. Nexus: Nexus: Not applicable. City of Renton Department of Communit" & Economic Development ERC and Adf'linistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAJ; :E LUA14-000453, V-A, ECF -------------~ Report of May 5, 2014 Page 5 of 19 2. Water a. Wetland, Streams, Lakes Impacts: A Supplemental Stream Study and Stream Buffer Mitigation Plan for the 132"d Street Sewer Extension Project, was prepared by Grette Associates Environmental Consultants, dated February 4, 2014. The study states that a Class 4 stream is located on the private parcel (PID 2144800535) owned by John Stewart (Exhibit 2). The city has a utility easement on the private parcel. The Stewart owned parcel with the stream is currently undeveloped, primarily pasture with trees and low-canopy vegetation around the stream and buffer areas. The site where the stream is located has a gradual south facing slope of approximately 14%, with steeper slopes along the stream bank, ranging from 28% on the left bank of the stream, and 58% on the right bank of the stream. The existing vegetation outside of the pasture area consists of a forested vegetation community dominated by Himalayan blackberry, red elderberry, salmonberry, red alder and black cottonwood. Non-native invasive species on-site include Himalayan blackberry, English holly, English ivy, bamboo and magnolia primarily along the western boundary of the subject site. The existing stream buffer likely provides moderate wildlife habitat function for small mammal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. Vegetation specifically within the stream buffer area generally consists of red alder, black cottonwood, and red cedar for trees, with the scrub-shrub lower canopy dominated by blackberry, red elderberry, salmon berry, and magnolia. Buffer groundcover is sparse with occasional sword fern. In order to allow the extension of the sewer through the private property and to the 132".d right-of- way, the applicant is proposing to underground the majority of the new sewer line with a daylit portion within the Class 4 stream 35-foot buffer. Work is proposed in the buffer, and the Critical Areas Ordinance of the city requires a Supplemental Stream Study and Stream Buffer Mitigation Plan where work would be done in addition to an Administrative Variance to allow the work. Adverse impacts were analyzed as part of the stream buffer mitigation plan (Exhibit 2) and adverse impacts would not likely occur as a result of the temporary work within the buffer area where the sewer pipe would enter the ground on either side of the stream. The area where the pipe will extend from the soil surface are approximately four square feet in total size. An area within the buffer would be cleared of vegetation and graded down for the pipe placement, and regarded to the existing grade. Following the pipe installation and regarding, new plantings will be installed consisting of native Western Washington species in a denser planting regimen than exists on site currently. Accord int to the provided stream study, the replacement of native species at a denser coverage than the existing native and non-native plants would most likely provide greater hydrologic function during seasonally heavy rain events than what currently exists. The proposed denser native groundcover would most likely filter out sediments and toxins from stormwater. Additionally, the daylit pipe that spans the stream would most likely not adversely affect stream or stream buffer function as it would be elevated above the stream and make a small entry into either side of the stream's buffer area, becoming underground at those entries. Impacts to the stream and the associated buffer are anticipated to be temporary as the only impacts would be during construction. City of Renton Deportment of Communi'" & Economic Development ERC and Adf'linistrotive Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR 'E LUA14-000453, V-A, ECF ... -~~~~~~~~~~~~-- Report of May 5, 2014 Page 6 of 19 Mitigation Measures: 1. The applicant shall comply with the 132nd Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated February 4, 2014 (Exhibits 2, 3, and 4). Nexus: SEPA Environmental Regulations, RMC 4-3-050 Critical Areas. 3. Utilities Impacts: The proposed sewer main extension consists of 8-inch PVC pipe primarily undergrounded. For the portion of the pipe proposed to be daylighted, the pipe would be encased within an 18-inch steel casing. The north to south route across the private parcel is roughly 338 linear feet, with 58 of those linear feet being the proposed daylighted extension. Within the 132nd right-of-way, the proposal is of approximately 436 linear feet underground. Mitigation Measures: No further mitigation required. Nexus: Nexus: Not applicable. D. COMMENTS OF REVIEWING DEPARTMENTS The proposal has been circulated to City Department and Division Reviewers. Where applicable, their comments have been incorporated into the text of this report and/or "Advisory Notes to Applicant."· ·· ,/ Copies of all Review Comments are contained in the Official File and may be attached to this report. PART THREE: ADMINISTRATIVE VARIANCE REVIEW A. DEPARTMENT ANALYSIS: 1. Compliance with ERC Conditions The applicant shall comply with the 2 SEPA mitigation measures. 2. Staff Review Comments Representatives from various city departments have reviewed the application materials to identify and address issues raised by 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 this report. 3. Consistency with Variance Criteria Section 4-9-2508.10, "Special Review Criteria -Public/Quasi-Public Utility or Agency Altering - Stream/Lake or Wetland Regulations," lists 10 criteria that the Planning Director is asked to consider, along with all other relevant information, in making a decision on an Administrative Variance application. These include the following: City of Renton Deportment of Communi'· · & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR E LUA14-000453, V-A, ECF --------------Report of May 5, 2014 Page 7 of 19 The Planning Director shall have authority to grant an administrative variance upon making a determination, in writing, that the conditions specified below have been found to exist: a. Public policies have been evaluated and it has been determined by the Department Administrator that the public's health, safety, and welfare is best served; The Renton Comprehensive Plan policies related to wastewater have been evaluated. The area where the sewer extension is being provided is zoned for single-family and multi-family development and the much of this area of Renton does not currently have sewer provided, as many existing homes are hooked up to individual septic service. The policies and objectives below were part of this evaluation. • Objective U-A: Provide an adequate level of public utilities in response to and consistent with land use, protection of the environment, and annexation goals and policies. • Objective U-B: Provide and maintain safe, reliable and adequate utility facilities and services for the City's current and future service area to meet peak-anticipated demands of the City in an efficient, economic, and environmentally responsible manner. • Policy U-13. Coordinate the extension of utility services with expected growth and development. • Policy U-55. Ensure and encourage the use of the sanitary sewer system within urban areas in a manner consistent with land use and environmental protection goals and policies. • Policy U-58. Adequate sewer service capacity should.be assured prior to the approvalof any new development application (e.g. short plat, long plat, multifamily, commercial, and industrial development). The proposal additionally meets the Renton Critical Areas Ordinance related code requirements for both the Approval of Stream Mitigation Plan and Alterations of Streams or Associated buffers for Utility projects. The Critical Areas Ordinance requires a supplemental stream study and stream buffer mitigation plan, per RMC 4-3-050.L.ii, as alterations of the on-site stream's buffer would be altered through the proposal and as impacts are identified within the stream's buffer area. Approval of Stream Mitigation Plan, RMC 4-3-050.l.ii, "When Supplemental Stream or Lake Study is Required" and "When Stream or Lake Mitigation Plan is Required," were used in evaluating the report. The code text follows with staff comments in the right column: Code Text Staff Comment b. When Supplemental Stream or Lake Study is Required: The Supplemental Study required. applicant shall be required to conduct a supplemental stream or lake study per RMC 4-8-120 if a site contains a water body or buffer area and changes to buffer requirements or alterations of the water body or its associated buffer are proposed, either administratively or via a variance request. c. When Stream or Lake Mitigation Plan is Required: The applicant Impacts are identified, a shall be required to conduct a stream or lake mitigation plan per RMC mitigation plan is required. City of Renton Department of Communi'" & Economic Development ERC and Adr'nistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR E LUA14-000453, V-A, ECF -----------~ Report of May 5, 2014 Page 8 of 19 ~ ------- 4-8-120 if impacts are identified within a supplemental stream or lake study. The approval of the stream or lake mitigation plan by the Administrator shall be based on the criteria located in subsection L3c(ii) of this Section. i. Timing of Mitigation Plan -Final Submittal and Commencement: Final mitigation plan submitted When a stream or lake mitigation plan is required, the applicant shall (Exhibit 2). submit a final mitigation plan for the approval of the Administrator prior to the issuance of building or construction permits, whichever comes first. The applicant shall receive written approval of the final mitigation plan prior to commencement of any mitigation activity. ii. Criteria for Approval of Stream or Lake Mitigation Plan for Approval criteria reviewed in the Alterations of Streams and Lakes or Associated Buffers: In order to boxes below. approve a stream or lake mitigation plan the Administrator shall find that the plan demonstrates compliance with the following criteria: (a) Mitigation Location: Mitigation location shall follow the preferences in subsections L3c(ii)(a)(l) to (4) of this Section. Basins and subbasins are indicated in subsection Q of this Section, Maps: (1) On-Site Mitigation: On-site mitigation is required unless a finding On-site mitigation is required is made that on-site mitigation is not feasible or desirable; and proposed. (2) _Off~Site Mitigation within Same Drainage Subbasin as Subject No off-site mitigation not Site: Off-site mitigation may be allowed when located within the required. same drainage subbasin as the subject site and if it achieves equal or improved ecological functions over mitigation on the subject site; (3) Off-Site Mitigation within Same Drainage Basin within City No off-site mitigation not Limits: Off-site mitigation may be allowed when located within the required. same drainage basin within the Renton City limits if it achieves equal or improved ecological functions within the City over mitigation within the same drainage sub basin as the project; (4) Off-Site Mitigation within the Same Drainage Basin Outside the No off-site mitigation not City Limits: Off-site mitigation may be allowed when located within required. the same drainage basin outside the Renton City limits if it achieves equal or improved ecological functions over mitigation within the same drainage basin within the Renton City limits and it meets City goals. (bl Mitigation Type: Types of mitigation shall follow the preferences in Review of preferences in the subsections L3c(ii)(b)(l) to (4) of this Section: boxes below. (1) Daylighting (returning to open channel) of streams or removal of Existing stream is daylighted as manmade salmonid migration barriers; existing and will stay the same. No salmonids are present in Class 4 streams. (2) Removal of impervious surfaces in buffer areas and improved No impervious surfaces exist in buffer area currently. Two City of Renton Department of Communih · & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR E -------------~ _WA14-000453, V-A, ECF Report of May 5, 2014 Page 9 of 19 biological function of the buffer; cement blocks are proposed to support the above stream pipe crossing, and one of them (the easterly) would be located within the 35-foot buffer. The support is 4-foot wide, 1.5-foot deep, by 2-feet in height and would be an added impervious surface within the buffer. Additionally, the daylighted pipe and casing would create an aerial impervious surface not on the ground. The addition of impervious surface is included in this variance request. (3) In-stream or in-lake mitigation as part of an approved watershed No in-stream work proposed. basin restoration project; (4) Other mitigation suitable for site and water body conditions that See subsection 'e' below. meet all other provisions for a mitigation plan. Equivalency or greater is met through proposal. In all cases, mitigation shall provide for equivalent or greater biological functions per subsection L3c(ii)(e) of this Section. · (c) Contiguous Corridors: Mitigation sites shall be Jocated to preserve Mitigation is on-site, at area or achieve contiguous riparian or wildlife corridors to minimize the where pipe exits and enters the isolating effects of development on habitat areas, so long as mitigation ground within the buffer. of aquatic habitat is located within the same aquatic ecosystem as the area disturbed; and {d} Non-Indigenous Species: Wildlife or fish species not indigenous to No wildlife or fish species would the region shall not be introduced into a riparian mitigation area be introduced. Plantings would unless authorized by a State or Federal permit or approval. Plantings not consist of non-native plants, shall be consistent with subsection L6c of this Section; and see subsection below, 11 Restrictions and Maintenance/! .. (e} Equivalent or Greater Biological Functions: The Administrator shall The proposed mitigation plan, utilize the report "City of Renton Best Available Science Literature page 7 of Exhibit 2, would Review and Stream Buffer Recommendations" by AC Kindig & provide greater functional value Company and Cedarock Consultants, dated February 27, 2003, unless than what exists where non- superseded with a City-adopted study, to determine the existing or native vegetation would be potential ecological function of the stream or lake or riparian habitat replaced with native plantings that is being affected. Mitigation shall address each function affected that will additionally reduce by the alteration. Mitigation to compensate alterations to stream/lake surface water runoff and filter areas and associated buffers shall achieve equivalent or greater out sediments and toxins. biologic and hydrologic functions and shall include mitigation for adverse impacts upstream or downstream of the development proposal site. No net loss of riparian habitat or water body function shall be demonstrated; and (f} Minimum Mitigation Plan Performance Standards: See Subsection This is a City project, and as such, no additional funds are City of Renton Deportment of Comm uni'" & Economic Development ERC and Ad-'nistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR ;;;'E _____________ _ LUA14-0004S3, V-A, ECF Report of May 5, 2014 Page 10 of 19 F8 of this Section. needed because the failure would be supported in the City general fund or by wastewater utility funds. (g) Additional Conditions of Approval: The Administrator shall Mitigation measures for condition approvals of activities allowed within or abutting a proposal are provided as part of stream/lake or its buffers, as necessary to minimize or mitigate any the buffer mitigation plan. potential adverse impacts. Conditions may include, but are not limited These measures are listed as to, the following: part of the staff recommended decision. (1) Preservation of critically important vegetation and/or habitat Recommended conditions are: features such as snags and downed wood; Clearly marked work limits; disposal of existing vegetation (2) Limitation of access to the habitat area, including fencing to deter off-site; BMPs used to minimize unauthorized access; erosion and prevent sediment runoff; No equipment to extend (3) Seasonal restriction of construction activities; and outside the 15-foot wide sewer easement; planting in buffer (4) Establishment of a duration and timetable for periodic review of area immediately installed once mitigation activities. final grade is achieved; plant installation performed as outlined in mitigation plan (Exhibit 2); Plant materials must be native to Western Washington (no hybrids allowed); and required Compliance report within 60 days of restoration. {h} Based on Best Available Science: The applicant shall demonstrate Exhibit 2 provides an Impact that the mitigation is based on consideration of the best available Evaluation on page 6. The science as described in WAC 365-195-905; or where there is an proposed activity area does not absence of valid scientific information, the steps in RMC 4-9-250F are currently provide quality buffer followed. function due to invasive vegetation and previous alterations. The proposal "will not result in a net-loss" of stream buffer function (page 6). iii. Performance Surety: The Administrator shall require a This is a city project, as such no performance surety to ensure completion and success of proposed additional funds are needed mitigation, per subsection G of this Section and RMC 4-1-230. because the failure would be supported by the general fund or wastewater utility funds. iv. Alternative Mitigation: The mitigation requirements set forth in Alternative mitigation is not this subsection L3 may be modified at the Administrator's discretion if required. the applicant demonstrates that improved habitat functions, on a per function basis, can be obtained in the affected sub-drainage basin as a result of alternative mitigation measures. 6. Stream or Lake Buffer Use Restrictions and Maintenance: Any activity or proposal subject to this subsection L shall comply with the City of Renton Deportment of Comm uni'" & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VA~ :E --------------LU(l~4-000453, V-A, ECF Report of May 5, 2014 Page 11 of 19 following standards within required buffer areas: a, Preservation of Native Vegetation: Existing native vegetation Native vegetation and trees are shall be preserved to the extent possible, preferably in not being impacted within consolidated areas. buffer area except for the an area of roughly 902 sf. b. Revegetation Required: Where water body buffer Revegetation is required and is disturbance has occurred in accordance with exemption or proposed (Exhibit 2). development permit approval or other activities, revegetation with native vegetation shall be required. c, Use of Native Species: When revegetation is required, Native species, not hybrids, approved native species, or other appropriate species from Western Washington are naturalized to the Puget Sound region shall be used. A variety of being proposed for plantings in species shall be used which serve as food or shelter from the buffer area disturbed as part climatic extremes and predators, and as structure and cover for of the proposed project. reproduction and rearing of young. d. Removal of Noxious Species: When required as a condition of Non-native plants within the approval, noxious or undesirable species of plants shall be buffer work area will be removed or controlled so as to not compete with native removed from the site. vegetation. e. Impervious Surface Restrictions: Where impervious surfaces No impervious surface area exist in buffer areas, such impervious surfaces shall not be currently exists within the buffer increased or expanded within the buffer area. The extent of area. Two cement blocks are impervious surfaces within the buffer area may only be proposed to support the above rearranged if the reconfiguration of impervious surfaces and stream pipe crossing, and one of restoration of prior surfaced areas is part of an enhancement them (the easterly) would be proposal that improves ecological function of the area protected located within the 35-foot by the buffer. buffer. The support is 4-foot wide, 1.5-foot deep, by 2-feet in height and would be an added impervious surface within the buffer. Additionally, the daylighted pipe and casing would create an aerial impervious surface not on the ground. Criteria for Permit Approval-Class 2 to 4 standards are as follows, per RMC 4-3-0SOL.7: Code Text Staff Comments 7. Criteria for Permit Approval -Class 2 to 4: Permit approval for projects on or near regulated water bodies shall be granted only if the approval is consistent with the provisions of this subsection L, and complies with the following: a. Creation of Native Growth Protection Areas Required: As a A future land use application for condition of any approval for any development permit issued the private parcel with the City of Renton Deportment of Communi' · & Economic Development ERC and Ad""'inistrotive Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR 'E LUA14-0004S3, V-A, ECF --------------Report of May 5, 2014 Page 12 of 19 pursuant to this Section, the property owner shall be required to stream would require as a create a native growth protection area containing the stream/lake condition of approval the, area and associated buffers based upon field investigations creation of native growth performed pursuant to subsection E4 of this Section; and protection area at minimum. b. At least one of the following conditions must apply: i. A proposed action meets the standard provisions of this No net loss standard is met as Section and results in no net loss of regulated riparian area or proposed in the buffer shoreline ecological function in the drainage basin where the mitigation proposal (Exhibit 2). site is located; or ii. A proposed action meets alternative administrative standards No alternative standards pursuant to this Section and the proposed activity results in no required. net loss of regulated riparian area or shoreline ecological function in the drainage basin where the site is located; or iii. A variance process is successfully completed and the This Exhibit 1 administrative proposed activity results in no net loss of regulated riparian area variance provides this or shoreline ecological function in the drainage basin where the requirement. site is located. There are two criteria for Administrative Approval of Utilities in a stream buffer (RMC 4-3- 050.L.b) where new utility lines and facilities may be permitted to cross water bodies in accordance with an approved supplemental stream study. The project was designed to meet these criteria. The criteria are: For Alterations of Streams Mitigation, RMC 4-3-050.L.8.b, "Alterations of Streams and Lakes or Associated Buffers -Utilities," was used in evaluating the report. Code Staff Comments b. Alterations of Streams and Lakes or Associated Buffers -Utilities: i. Criteria for Administrative Approval of Utilities in Stream/Lake or Buffer: New utility lines and facilities may be permitted to cross water bodies in accordance with an approved supplemental stream/lake study, if they comply with the following criteria: (a) Fish and wildlife habitat areas shall be avoided to the maximum Avoidance of working in the extent possible; and stream buffer is not feasible. Adverse impacts on wildlife habitat and fish should be minimal if any, as the stream will not be disturbed nor trees taken down and the disturbed area grade is proposed to be kept the same with the removal of non-native plants and City of Renton Deportment of Communi'" & Economic Development ERC and Administrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAR E LUA14-000453, V-A, ECF ------~----~~-Report of May 5, 2014 Page 13 of 19 replacement of native plants that would provide greater biological function to the site. (b) The utility is designed consistent with one or more of the following Seasonal work shall be methods: consistent with the approved HPA. (1) Installation shall be accomplished by boring beneath the scour Boring is not proposed. depth and hyporheic zone of the water body and channel migration zone;or (2) The utilities shall cross at an angle greater than sixty (60) degrees The angle of the crossing is to the centerline of the channel in streams or perpendicular to the greater than 60 degrees (Sheet channel centerline; or 1 of Appendix B of Exhibit 4). (3) Crossings shall be contained within the footprint of an existing This is a new utility and crossing road or utility crossing; and would be within an existing 15 foot utility easement on the parcel 214480-0535. (c) New utility routes shall avoid paralleling the stream or following a The new utility route would not down-valley course near the channel; and parallel the stream or follow a down valley course near the channel (Sheet 1 of Appendix B of Exhibit 4). (d) The utility installation shall not increase or decrease the natural No migration impact is foreseen rate of shore migration or channel migration; and pursuant to the provided study . (Exhibit 2) . (e) Seasonal work windows are determined and made a condition of approval; and (f) Mitigation criteria of subsection L3c(ii) of this Section are met. The above matrix provides review of the code subsection requirements. The project meets the criteria if a II conditions of approval are met. In consideration of the public safety and welfare and the aerial pipe crossing, a risk management assessment should be considered. Staff recommends as a condition of approval of the variance that the City's Risk Manager evaluate the exposed pipe installation and make a determination of whether additional safety precautions should be made. Staff has evaluated public policies and it has been determined that the public's health, safety, and welfare would be served if the subject variance is approved .. b. Each facility must conform to the Comprehensive Land Use Plan and with any adopted public programs and policies; The sewer extension facility conforms to the Comprehensive Land Use Plan and the adopted public policies (see above under Criteria 'A') and programs. The proposal is within the Downtown Wastewater Collection Basin. The area this sewer extension would provide service to was annexed into Renton in 2009 as part of the Earlington Annexation (Ordinance 5484) where the land use was established as a mix of single-family and multi-family zoning City of Renton Deportment of Comm unit" & Economic Development fRC and Ad-inistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAi :E LUA14-000453, V-A, ECF -------------~ Report of May 5, 2014 Page 14 of 19 (Residential-8, Residential-10, and Residential-14). The area is primarily developed with single family homes and vacant properties with an expectation through the Comprehensive Land Use designations that the properties would provide residential infill opportunities and ultimately increase the number of people living in the area. Therefore, the proposed facility would conform to the comprehensive land use plan and with adopted public programs and policies. c, Each facility must serve established, identified public needs; The proposed sewer extension project would serve established, identified public needs. A conclusion and recommendation of the City of Renton Long-Range Wastewater Management Plan of 2010 states that, "where the City annexes an area that is currently unsewered by another municipality, the City should provide sewer service" {Exhibit 12, p.1-8). Although some ofthe Earlington Annexation area is provided with wastewater service, there is a gap in sewer service in the area of the proposed project. Therefore, the proposed facility would serve established, identified public needs. d. No practical alternative exists to meet the needs; Existing parcels are unable to redevelop without sewer availability. No other wastewater utility provides service to this area. The zoning and land use designations for the area that would be served by the proposal is established for an increase in residential units and population. Alternative locations were evaluated and pursued for the sewer extension, within the westerly subdivision of the parcel where the extension is now proposed. The neighbors that would be required to create a local improvement district or similar body did not provide sufficient support to provide an easement and space for a sewer extension. Additionally, a tra-ctwithin the subdivision that is roughly within the private street was pursued as a possible location of the wastewater line. This tract was not co-owned by all surrounding property owners, and was sold to an out of state person that was not interested in the project proposal. Therefore, no other practical alternative exists to meet the needs. e, The proposed action takes affirmative and appropriate measures to minimize and compensate for unavoidable impacts; The proposal is to expand the wastewater utility to unserviced areas through a stream buffer area. The stream is a Class 4 stream, and classified as non-salmon id bearing. Where the sewer extension will intrude the stream buffer area, an analysis of alternatives were established to prevent avoidable impacts to the environment and rectify those impacts that cannot be avoided. As seen on page 5 ofthe Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit 2), the proposal provides analysis ofthe Critical Areas requirement. The proposal's analysis looks at alternatives designed to prevent avoidable impacts to the environment and rectify those impacts that could not be avoided. The analysis looked at avoidance, minimization of impact, restoration, adverse impacts possibilities, and compensation. The Supplemental Stream Study and Stream Buffer Mitigation Plan {Exhibit 2) provides the proposed project affirmative and appropriate measures to minimize and compensate for unavoidable impacts. f, The proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located; City of Renton Department of Communi'" & Economic Development ERC and Ad-inistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAi :E LUA14-0004S3, V-A, ECF ~~~~~~~~~~~~~~ Report of May 5, 2014 Page 15 of 19 The proposal provided a Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit 2). The proposal includes a review of alternatives to the work being proposed within the stream buffer. The analysis includes avoidance, minimization, restoration, adverse impacts, and compensation. Avoidance of work in the buffer is not feasible. The project is designed to minimize impact, where the proposed pipe over the stream would be approximately 15 above the stream, no disturbance to the stream bed or stream bank is proposed, the stream is crossed as close to perpendicular as possible, no existing trees would be impacted, and BMPs would be used during construction. The installation of a cement support block within the buffer area would result in a 4-foot by 1.5-foot (6 square feet) impervious structure support the pipe as it enters the ground. Restoration would reestablish existing topography following work, remove non-native plantings, and restore the area with more dense native planting. The mitigation proposal determines "adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed project" (Exhibit 2, page 5). Given the restoration of the disturbed buffer area, where the existing sparse vegetation consisting of some non-native plants would be replanted with native plants at a denser cover and provide greater hydrological and biological conditions to the buffer, the added impervious surface would not create a net loss of stream area value or function in the drainage basin. The proposal analysis determines that the project would "not result in a net-loss" of stream buffer function (Exhibit 2, page 6). Therefore, the proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located. g. The proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State; No endangered, threatened or sensitive species are within the parcel with the stream and associated stream buffer where the project wastewater pipe crossing is proposed. The Environmental Checklist submitted with the proposal, within the Environmental Elements subsection of the checklist, does not list any endangered, threatened or sensitive species (Exhibit 2). Therefore, the proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State. h. That the proposed activities will not cause significant degradation of groundwater or surface water quality; The proposal stream buffer mitigation plan (Exhibit 2) suggests that, "Adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed project. As discussed ... the project will employ all necessary BMPs to minimize erosion of distrubed surface soils and to prevent sediment-laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation" Therefore, the proposed activities will not cause significant degradation of groundwater or surface water quality. i. The approval is the minimum variance necessary to accomplish the desired purpose; and City of Renton Department of Communi'" & Economic Development fRC and Ad-inistrotive Variance Report & Decision 132ND SEWER MAIN EXTENSION VA~ :;;;E ____________ _ LUA14-000453, V-A, ECF Report of May 5, 2014 Page 16 of 19 The proposed project would receive an approval for the minimum variance necessary to accomplish the extension of the sewer main north across the Class 4 stream and within the 35 foot stream buffer area. Therefore, the approval is the minimum variance necessary to accomplish the desired purpose. j. The proposed variance is based on consideration of the best available science as described in WAC 365-195-905; or where there is an absence of valid scientific information, the steps in RMC 4-9-250F are followed. Where alteration of the stream buffer occurs, the proposed buffer mitigation work is required by Renton code to achieve equivalent or greater biological and hydrological functions. The existing vegetation (including non-native plants) and area that would be disturbed would be restored following temporary disturbance would be restored with native Western Washington plantings and at a denser covering than existing. The proposed plantings would provide greater native groundcover than existing and reduce storm water runoff and filter out sediments and toxins from stormwater. The provided analysis and mitigation plan (Exhibit 2) are based on best available science. B. FINDINGS: Having reviewed the written record in the matter, the City now makes and enters the following: 1. Request: The applicant has requested approval of an administrative variance from RMC 4-3-050 for a proposed sewer pipe that would enter the ground in two places within a Class 4 stream buffer. 2. Administrative Variance: The applicant's administrative variance submittal materials comply with the requirements necessary to process a variance request. The applicant's site plan for the full sewer extension, the site plan for the buffer mitigation work, supplemental stream study and stream buffer mitigation plan are provided Exhibits 2 through 4. 3. Existing Land Use: Right-of-way and a vacant parcel. The proposal is a sewer extension that includes crossing a stream on a privately owned parcel and additional extension in the S 132nd right-of-way. 4. Zoning: The subject property where the stream is located is within the Residential -14 dwelling units per acre (R-14) zone (Exhibit 4). Along the 132nd right of way, between Renton Ave S to the east and 801h Ave S to the west, the southerly properties are zoned R-14 and northerly properties are zoned both R-14 and Residential-8 dwelling units per acre (R-8) zone (Exhibit 4). S. Topography: The site where the stream is located has a gradual south facing slope of approximately 14%, with steeper slopes along the stream bank, ranging from 28% on the left bank of the stream, and 58% on the right bank of the stream. 6. Sewer Pipe Proposed: On the private property, the proposed 338 linear feet of pipe would be 8 inch PVC underground except for the daylighted area within the stream buffer on the private parcel, where the daylit pipe would be within an 18-inch steel casing. Within the right-of-way, the underground main would be approximately 436 linear feet of 8-inch PVC. 7. Due to the presence of a stream, Environmental (SEPA) Review was conducted and a DNS-M was issued on May 5, 2014 (Exhibit 1). City of Renton Deportment of Communi'" & fconomic Development ERC and Adf"linistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VAi :_E ____________ _ LUA14-0004S3, V-A, ECF Report of May 5, 2014 Page 17 of 19 8. The proposal complies with RMC 4-3-050, Critical Areas Regulations, and RMC 4-9-250, Variances, Waivers, Modifications, and Alternatives. C. CONCLUSIONS: 1. The proposal would meet the standards of the Critical Areas Regulations 4-3-050 by providing required mitigation for work conducted within a Class 4 stream's buffer area. 2. The applicant's proposal to work within a Class 4 stream buffer area meets the ten criteria to be considered in making a decision on a variance request, if all conditions of approval are complied with, as specified in RMC 4-9-2508.10: a) Public policies have been evaluated and it has been determined by the Department Administrator that the public's health, safety, and welfare is best served; b) Each facility must conform to the Comprehensive Land Use Plan and with any adopted public programs and policies; c) Each facility must serve established, identified public needs; d) No practical alternative exists to meet the needs; e) The proposed action takes affirmative and appropriate measures to minimize and compensate for unavoidable impacts; f) The proposed activity results in no net loss of regulated wetland or stream/lake area, value, or function in the drainage basin where the wetland, stream or lake is located; g) The proposed activities will not jeopardize the continued existence of endangered, threatened or sensitive species as listed by the Federal government or the State; h)That the proposed activities will not cause significant degradation of groundwater or surface water quality; i) The approval is the minimum variance necessary to accomplish the desired purpose; and j) The proposed variance is based on consideration of the best available science as described in WAC 365-195-905; or where there is an absence of valid scientific information, the steps in RMC 4-9-2SOF are followed. 3. The analysis of the proposal according to variance criteria is found in the body of the Staff Report. D. DECISION: The Administrative Variance for the 132"d Street Sewer Extension Project, File No. LUA14-000453, V-A, ERC, is approved and is subject to the following conditions: 1. The applicant shall comply with the mitigation measures for the Determination of Non-Significance -Mitigated, issued on May 5, 2014. 2. The City Risk Management division shall review the project and make a determination about risks, safety, and public welfare in consideration of the daylit portion of the sewer pipe within the easement granted to the city for utilities. 3. The applicant shall comply with the conditions of approval included in the Hydraulic Project Approval (HPA) which should provide directive on seasonal windows for construction work. DATE OF DECISION ON LAND USE ACTION: SIGNATURE: ~/('/11 • f C.E. "Chip" Vincent, Administrator Date Department of Community & Economic Development City of Renton Department of Commun'~· & Economic Development ERC and A ,.J-fnistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VA :E ~~~---~~~~~~~- LUA14-000453, V-A, ECF __ Report of May 5, 2014 TRANSMITTED this 5" day af May, 2014 to the Contact/Applicant/Owner: Contact: Rebecca Saur Stantec Consulting Services, Inc 11130 NE 33'd Pl, Suite 200 Bellevue, WA 98004 Applicant: John Hobson~ Sewer Utilities Division City of Renton 1055 S Grady Way, 5'h Floor Renton, WA 98057 TRANSMITTED this this s" day of May, 2014 ta the Parties of Record: Larry Fisher WDFW Area Habitat Biologist 177512" Ave NW Suite 201 Issaquah, WA 98027 Karen Walter Muckleshoot Indian Tribe Fisheries Habitat Program 39014172°d Ave SE Auburn, WA 98092 TRANSMITTED this this 5" day of May, 2014 to the following: Chip Vincent, CED Administrator Neil Watts, Development Services Director Craig Burnell, Building Official Jennifer Henning, Planning Director Vanessa Dolbee, Current Planning Manager Fire Marshal Page 18 of 19 Owner of Parcel 214480-0535 with utility easement: John Stewart 8223 S 132"d St Seattle, WA 98178 Owner of 132°d Street ROW City of Renton 1055 S Grady Way, 5" Floor Attn: Wastewater Utility 1055 S Grady Way E. LAND USE ACTION APPEALS, REQUEST FOR RECONSIDERATION, & EXPIRATION: The Environmental Determination and the Administrative Variance Review decisions will become final if the decisions are not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Environmental Determination Appeal: Appeals of the environmental determination must be filed in writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014. Administrative Variance Approval Appeal: Appeals of the administrative site development plan review decision must be filed in writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014. APPEALS: The above land use decisions will become final if not appealed in writing together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. RMC 4-8- 110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the City Clerk's Office, Renton City Hall -7th Floor, (425) 430-6510. RECONSIDERATION: Within 14 days of the effective date of decision, any party may request that the decision be reopened by the approval body. The approval body may modify his decision if material evidence not readily discoverable prior to the original decision is found or if he finds there was misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient evidence to amend the original decision, there will be no further extension of the appeal period. Any person wishing to take further action must file a formal appeal within the 14-day appeal time frame. City of Renton Deportment of Commun c. .. & Economic Development ERC and A~,inistrative Variance Report & Decision 132ND SEWER MAIN EXTENSION VA, ;;;~£'-------------- Report of May 5, 2014 LUA14-0004S3, V-A, ECF Page 19 of 19 EXPIRATION: The administrative variance approval will become null and void if the applicant or owner of the subject property which a variance has been requested has failed to commence construction or otherwise implement effectively the variance granted within a period of two (2) years after such variance has been issued. A one (1) year extension may be requested pursuant to RMC 4-9-2508.18. THE APPEARANCE OF FAIRNESS DOCTRINE: provides that no ex parte (private one-on-one) communications may occur concerning the land use decision. The Doctrine applies not only to the initial decision, but to Appeals to the Hearing Examiner as well. All communications after the decision/approval date must be made in writing through the Hearing Examiner. All communications are public record and this permits all interested parties to know the contents ofthe communication and would allow them to openly rebut the evidence in writing. Any violation of this doctrine could result in the invalidation of the appeal by the Court. EXHIBIT 2 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN PREPARED FOR: STANT EC CONSUL TING SERVICES INC. ATTN: REBECCA SAUR 11130 NE 33"0 PLACE, SUITE 200 BELLEVUE, WA 98004 PREPARED BY: GRETTE ASSOCIATESLLC 2102 NORTH 30TH STREET, SUITE A TACOMA, WASHINGTON 98403 (253) 573-9300 CHAD WALLIN BIOLOGIST ~. Grette Associates'IC V ENVIRONMENTAL CONSULTANJS FEBRUARY 4, 2014 DATE TABLE OF CONTENTS I INTRODUCTION ...................................................................................................... 1 2 PROJECT DESCRIPTION ......................................................................................... I 2.1 Current Use ......................................................................................................... I 2.2 Proposed Actions ................................................................................................ I 3 EXISTING CONDITIONS ......................................................................................... 3 3. I Stream Classification .......................................................................................... 3 3.2 Existing Buffer Conditions ................................................................................. 3 3.3 Topography ......................................................................................................... 3 4 ANALYSIS OF ALTERNATIVES ............................................................................ 4 4.1 Avoidance ........................................................................................................... 5 4.2 Minimize ............................................................................................................. 5 4.3 Restoration .......................................................................................................... 5 4.4 Adverse Impacts .................................................................................................. 5 4.5 Compensation ..................................................................................................... 5 5 IMP ACT EVALUATION .......................................................................................... 6 5. I Affected Resources ............................................................................................. 6 5.1.1 Existing Stream Buffer Functions .......................................................................... 6 5.1.2 Impact Determination ............................................................................................ 6 6 MITIGATION PLAN ................................................................................................. 7 6.1 Target Functions ................................................................................................. 7 6.2 Goals and Objectives .......................................................................................... 7 6.3 Mitigation Design ............................................................................................... 7 6. 3.1 Grading Plan ......................................................................................................... 7 6.3.2 Planting Plan ......................................................................................................... 8 6.3.3 Planting Schedule .................................................................................................. 8 6.3.4 Preparation and Installation of Planting Materials .............................................. 9 7 COMPLIANCE INSPECTION .................................................................................. 9 7. I Compliance Inspection ........................................................................................ 9 7 .2 Compliance Inspection Report ............................................................................ 9 8 BIOLOGIST QUALIFICATIONS ........................................................................... 10 Chad Wallin .................................................................................................................. 10 9 REFERENCES ......................................................................................................... 10 LIST OF FIGURES Figure I. King County Parcel Map (iMAP 2014) ...................................................................... 2 Figure 2. Topoography map (City of Renton 2014) ................................................................. .4 LIST OF TABLES Table I. Proposed Critical Area Impact Summary by Type ...................................................... 6 Table 2. Proposed Planting Schedule ......................................................................................... 8 Appendix A. Project Site Plan Appendix B. Mitigation Plan LIST OF APPENDICES 132nd Sewer Extension Project i Supplemental Stream Study and Stream Bti[fer Mitigation Plan Febnwry 26, 2014 Grette Associates, LLC INTRODUCTION Grette AssociatelLc is under contract to Stantec Consulting Services, Inc. (Stantec) to prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of Renton Sanitary Sewer Extension project (Project) located at 8223 South I 32"d Street in Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and within Section 13, Township 23North, Range 4 East, W.M. (Figure I). This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been prepared in accordance with the requirements of the City of Renton Municipal Code (RMC) Chapter 4.3.0SOL-Critical Area Regulations. A Grette Associatesuc biologist visited the subject parcel on January 14, 2014 to perform an assessment of the stream and associated stream buffer within the Project area. Prior to the site visit, the ordinary high water mark (OHWM) determination was completed by the Project proponents. During the OHWM determination, the stream boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all stream related figures to assess the extent of disturbance associated with this Project. 2 PROJECT DESCRIPTION 2.1 Current Use The subject parcel is currently undeveloped. With the exception of the southern portion, the site is mostly a grass field that appears to be regularly maintained and was likely previously used as a livestock pasture. The existing vegetation outside of the maintained area consists of a forested vegetation community that is dominated by Himalayan blackberry (Ruhus discolor), red elderberry (Sambucus racemosa), salmonberry (Ruhus spectahilis), red alder (A/nus ruhra), and black cottonwood (Populus balsamiferia). Non- native, invasive species observed during the site assessment include Himalayan blackberry, English holly (Liv: aquifolium), English ivy (Hedera helix), bamboo (Bambusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species were located primarily along the western boundary of the subject parcel. 2.2 Proposed Actions The purpose of the proposed City Project is to connect several existing properties that are currently being served by onsite septic systems to the City of Renton's sewer system. The Project includes design of approximately 436 linear feet of new 8 inch PVC underground sewer main along South l 32"d Street and approximately 338 linear feet of new 8 inch PVC underground sewer main between the proposed South 132"d Street alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new sanitary sewer will extend through the subject parcel and will cross over an unnamed Class 4 stream in the southwest comer of the site (Appendix A). The length of the sanitary sewer line that will daylight across the Class 4 stream and associated stream buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line will be placed underground. 132nd Street Sewer Extension Project I Supplemental Stream Study and Stream Bi1ffer Mitigation Plan February 26, 2014 Grette Associates, LLC Figure I. King County Parcel Map (iMAP 2014) King County Tax Parcel Map U1 King County 131'".' Street s('ll"('/" F1.f,'ll.\{O/I l'ntf<!C! :! Fehnwrr 20, 20 /.I. Supph'111e11wl /)'trca111 Stud\' und StJ\'tlll! B1(ff('!" Jfitig,atioH Plo11 Greife As.rncialD. LLC 3 EXISTING CONDITIONS The onsite stream that is located in the southern portion of the subject parcel originates from two streams that likely collect surface and shallow subsurface water from the surrounding areas. These two streams join at the intersection of S. l 32"d Street and Sotl• Ave. South and flow east towards the subject parcel. Upstream of the confluence, the two streams are conveyed through a series of culverts. However, at the confluence the streams begin to flow in a natural channel. Within this natural stream reach, the stream flows beneath several public roads prior to being fully conveyed through stormwater features and directed to the south shore of Lake Washington. Within the subject parcel, the bankfull width of the channel is approximately 36 inches. 3.1 Stream Classification Based on the City of Renton's stream inventory (City of Renton 2014) and previous correspondence with City staff (Gerald Wasser 2010), the stream located along the southern portion of the subject parcel is a Class 4 stream. Class 4 streams are non- salmonid bearing streams with intermittent flows during years of normal precipitation. Per RMC 4.3 .050L.5a, Class 4 streams are subject to a 35 foot buffer width. Within the Project area, the existing stream bed is comprised of a sand and fine/medium gravel mixture and is confined within its banks by a constructed wall of automotive tires. Tire walls armor both sides of the stream channel within the Project area. There is no evidence that these tire walls extend upstream or downstream, and it appears that the tire walls are only present within the southwestern portion of the subject parcel. 3.2 Existing Buffer Conditions The stream buffer within the Project area consists of native and non-native vegetation species that have developed several canopy layers. The dominant forested species within the stream buffer include red alder, black cottonwood, and red cedar (Thuja plicata). Beneath the forest vegetation is a scrub-shrub sub-canopy dominated by Himalayan blackberry, red elderberry, salmonberry, and magnolia. Groundcover vegetation within the stream buffer is sparse with an occasional sword fem (Polystichum munitum). However, along the western parcel boundary, groundcover is more prominent and 1s dominated by English ivy and creeping buttercup (Ranunculus repens). 3.3 Topography The general topography within the subject parcel consists of a gradual south facing slope (approximately 14% slope) that extends to the approximate stream buffer boundary (Figure 2). From the stream buffer boundary to the left bank of the stream the topography increases to approximately 28% slope. The stream buffer topography associated with the right bank of the stream is approximately 58% slope. Similarly to the left bank, the area outside of the stream buffer is less steep, approximately 14% slope. According to the City of Renton's COR Maps (City of Renton 2014), both sides of the stream are mapped as regulated slopes (>25% and :S40% slope). 132nd Street Sewer Extension Project 3 Supplemental Stream Study and Stream Buffer Mitigation Plan February 26, 2014 Grette Assodates, LLC Figure 2. Topoograpby map (City of Renton 2014). 4 ANALYSIS OF ALTER'\/ATIVES The City of Renton. per RMC 4.8.120.D. I 9S, requires that any proposed project that contains a water body or associated buffer area evaluate alternative methods of developing the subject parcel. This section describes the effo11s made by the project proponent to apply alternative methods to the proposed Project. An analysis of alternatives is a set of steps designed to prevent avoidable impacts to the environment and then rectify those impacts that cannot be avoided. The steps considered during the planning of this Project are described below. I 32"d Street Snn'r Ewe11sio11 Pmjec! 4 Supplemental Strrnm Stucfr and Stream B1d/c.T Mitigation Plan Fchruary 26. 2014 Greife Associates. LLC 4.1 Avoidance In the case of this project, avoidance is not feasible. In order to provide functioning City sanitary sewer service to existing properties that are currently being served by onsite septic systems. the proposed sanitary sewer extension will require connections between South 132"d Street and the existing Earlington sanitary sewer line. No feasible alternatives exist to provide these connections without crossing the stream channel on the subject property. 4.2 Minimize The Proposed project has been designed to minimize impacts to the critical areas within the subject parcel. As currently designed, the proposed Project would require a temporary stream buffer disturbance, approximately 902 square feet in size, that would be associated with the trenching and placement of the new 8 inch PVC sanitary sewer main. Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as is practicable and will be elevated approximately 15 feet above the wetted channel to avoid disturbance to the stream channel. No disturbance to the stream bed or bank is proposed during this Project. Furthermore, the current design of the Project does not propose removal of any existing mature trees, and Best Management Practices would be employed to prevent disturbances to areas outside of the construction area. 4.3 Restoration Restoration of temporarily disturbed stream buffer areas will occur upon completion of the proposed Project (see Section 7). The proposed Project will reestablish preexisting topography and replant the temporarily disturbed stream buffer area with native vegetation. All non-native species removed during the placement of the sanitary sewer line will be disposed of at an approved offsite location, and will be replaced with native species. 4.4 Adverse Impacts Adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed Project. As discussed below in Section 7.2.1, the Project will employ all necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface soils and to prevent sediment-laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation. 4.5 Compensation With the exception of the portion of the sewer pipe that will daylight, all disturbances to the stream buffer will be temporary. The areas where the pipe will extend from the soil surface are approximately four square feet in total size. This extremely small footprint compared to the size of the stream buffer within the project area is anticipated to be insignificant based on function. Therefore, no compensation is proposed for this Project. 132nd Street Sewer Extension Project 5 Supplemental Stream Stud_v and Stream Buffer Mitigation Plan Fehrua,y 26, 2014 Grette Associates, LLC 5 IMPACT EVALUATION The proposed Project will result in unavoidable temporary impacts to the stream buffer within the subject parcel. These impacts are described in detail below. The impacts addressed in this Plan are specific to the Class 4 stream and associated buffer. 5.1 Affected Resources As discussed above, the proposed Project will temporarily disturb approximately 902 square feet of stream buffer. However, the existing stream buffer within the Project area does not provide quality buffer function due to the amount of invasive vegetation and previous alterations. Although temporary, the impacts associated with the Project would require removal of vegetation and soil disturbance within the construction area. No mature trees will be removed during this Project. No impacts to the stream bed or bank are proposed. 5.1.1 Existing Stream Buffer Functions The stream buffer within the Project area consists of native and non-native vegetation species that have developed a stratified forest canopy. The upper forest canopy consists of mature deciduous and evergreen species that provide shading and nutrient loads to the stream and stream buffer. Beneath the upper forest canopy, the sub-canopy consists of scrub-shrub species that likely provide some shading and nutrient load as well. Due to the topography and the existing armoring of the stream bank, the buffer vegetation likely does not provide significant hydrologic function during seasonally heavy rain events. During heavy rains, the understory buffer vegetation likely does not reduce the surge effect associated with stormwater runoff in highly developed areas. The existing stream buffer like! y provides moderate wildlife habitat function due to the presence of the stream and forested area. Wildlife functions within the stream buffer include small mammal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. 5.1.2 Impact Determination The proposed impacts associated with the construction of the sanitary sewer line will be temporary and will not result in a net-loss of stream buffer function. Furthermore, the current design entails the least amount of impact to critical areas within the subject parcel. With the exception of the daylight portion of the sanitary sewer line, no permanent structure will be placed within the stream buffer area. The portion of the sanitary sewer line that will daylight and span the stream will not adversely affect stream or stream buffer function, as it will be elevated off of the ground and will not impede existing stream or stream buffer processes. Affected critical areas by type are summarized below in Table I. Table I. Proposed Critical Area Impact Summary by Type. Stream Buffer Sewer Line Installation I 902 square feet Temporary 13211d Street Snver Extension Project 6 Supplemental Stream Study and Stream Buffer Mitigation Plan Februarv 26. 2014 Grette Associates, LLC 6 MITIGATION PLAN Mitigation will occur within the subject parcel (Appendix B, Sheet I). Actions proposed include restoring approximately 902 square feet of stream buffer and employing BMPs during construction. 6.1 Target Functions Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve equivalent or greater biological and hydrological functions. The restoration of the temporarily disturbed stream buffer area will provide greater functional value to what currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed provides little buffer function due to existing non-native vegetation and very little ground cover. Restoring the temporarily disturbed buffer area will provide greater vegetation diversity and hydrological function through the planting of native shrubs and seeding of native grasses. Establishing denser native groundcover within the disturbed area will reduce surface stormwater runoff and filter out sediments and toxins from stormwater. Currently, the groundcover within the forested buffer is mostly bare and likely does not filter out significant amounts of sediment and pollutants from surface water. 6.2 Goals and Objectives The overall goal of the mitigation plan is to restore temporarily disturbed vegetation within the stream buffer. With the exception of where the sewer line extends out of the ground, the exposed portion of the sanitary sewer line that will span the stream will not have contact with the ground and thus will not impede natural stream or stream buffer processes. Surface contact with the sewer line will be less than four square feet in size. More specific mitigation goals include: 1. Ensure no net loss of stream buffer function; 2. Provide enhanced native plant diversity; 3. Provide enhanced water quality function. Specific functional objectives of the Plan include: 1. Restore approximately 902 square feet of disturbed stream buffer; 2. Seed all disturbed soils within the construction area. 6.3 Mitigation Design The intent of the mitigation actions at the subject parcel is to offset the temporary stream buffer disturbance associated with the Project and to ensure no net loss of stream buffer function. 6.3. J Grading Plan Initially, the extent of the proposed work area will be clearly marked and silt fencing will be installed along the outer work limits. All vegetation within the areas proposed for excavation will be mechanically removed and disposed of at an approved upland location. Excavation, grading, and clearing limits within the stream buffer will be limited to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line. 132nd Street Sover Extension Project 7 Supplemental Stream Study and Stream B1{{fer Mitigation Plan February 26. 2014 Grette Associates, LLC During all construction activities, Best Management Practices (BMPs) will be employed to minimize erosion of disturbed surface soils and to prevent sediment-laden mnoff from leaving the project site. BMPs to be employed during constmction may include (but are not limited to) silt fencing and/or straw bales around the perimeter of the clearing and grading areas, mulching areas immediately after completion of grading, and installation of plant material as soon as practical after grading. Once the vegetation is removed, excavation and grading will be conducted using excavators, dump tmcks, and other like equipment as needed to complete the work. All excavated soils within the stream buffer will be cast into dump tmcks for temporary storage and reused as back fill material in the stream buffer area. At no point will equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings within the disturbed stream buffer area will be immediately installed once the final grade is achieved. 6.3.2 Planting Plan Plant installation will be perfmmed in accordance with the specifications outlined in this Plan. Any alterations to the planting plan due to site conditions will require approval from the City of Renton prior to installation. The project proponent is only proposing planting within the designated restoration area (Appendix B, Sheet 2). The intent of restoring stream buffer vegetation with native grass and shrub species is to provide greater plant diversity and water quality and hydrological functions within the area proposed for disturbance. Shrub species will be planted on 4 to 5 foot centers and will include Scouler's willow (Salix scouleriana), red elderberry, red-osier dogwood (Cornus stolonifera), and cascara (Rhamnus purshiana). A dense planting schedule is proposed based on the non-native invasive species that are present outside of the restoration area. Over planting will provide a better opportunity for native species to compete with non-native, invasive species. 6.3.3 Planting Schedule The proposed planting schedule for the restoration area is presented below in Table 2. The specific quantities of each species will be calculated during final design of the mitigation action. In order to reduce mortality, a late fall plant installation schedule (October -November) is preferred. Plants should not be installed during or immediately before freezing weather. All remaining bare soils within the restoration area will be seeded within an approved native seed mix consisting of species such as Idaho fescue (Festuca idahoensis ssp. roemeri), blue wildrye (Ezvmus glaucus), spike bentgrass (Agrostis exerata), and red fescue (Festuca rubra), or like native species. Table 2. Proposed Planting Schedule Sahr: scoule,?ana 20 Sambucus racemosa 6 Acer circinatum 20 Cascara Rhamnus urshiana 6 1 Plant quantities will be verified following final design. 132"'1 Street Sewer Extension Project 8 Supplemental Stream Study and Stream Buffer Mitigation Plan 2 allon 2 all on 2 allon 2 allon 4' to 5' 4' to 6' 4' to 5' 4' to 6' Febr11my 26. 2014 Grette Associates, LLC All plant materials to be used on the site will be native to Western Washington and will consist of nursery grown stock from a reputable, local dealer. Only native species specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant substitutions must be approved by the City of Renton if specified species are not commercially available. Plant material provided will be typical of their species or variety; they will exhibit normal, densely-developed branches and vigorous, fibrous root systems. Plants will be sound, healthy, vigorous plants free from defects and all forms of infestation. 6.3.4 Preparation and Installation of Planting Materials The landscape contractor shall verify the location of all elements of the landscape plan prior to installation. The contractor may adjust the locations of landscape elements during the installation period as necessary. Circular plant pits with vertical sides will be excavated for all container stock. The pits should be at least twice the diameter of the root system, and the depth of the pit should accommodate the entire root system. The bottom of each pit will be scarified to a depth of 4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary stress. The planting hole shall be amended with a mixture of topsoil and organic material if necessary to provide appropriate rooting media. Broken roots should be pruned with a sharp instrument and rootballs should be thoroughly soaked prior to installation. Set plant material upright in the planting pit to proper grade and alignment. Water plants thoroughly midway through backfilling and again upon completion of backfilling. No filling should occur around stems. Do not use frozen or muddy mixtures for backfilling. Form a ring of soil around the edge of each planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each container plant. 7 COMPLIANCE INSPECTION 7.1 Compliance Inspection A compliance inspection will consist of evaluating the plantings immediately after construction to confirm the Plan was followed and the plants were installed appropriately. A walk-through survey will be conducted to verify that installation conforms to the approved Plan. Photographs will be taken to document the completion of the restoration actions. 7.2 Compliance Inspection Report Within 60 days of completion of stream buffer restoration, the Project proponents will prepare and submit a compliance inspection report to the City of Renton. This report will document the implementation of the restoration actions and describe any deviations from the original Plan. The report will also describe any potential problems identified during installation and any recommended remedies to be proposed to the City. Representative photographs will be taken to further document the implementation of this Plan. I 32 11 J Street Seiver Extension Project 9 Supplemental Stream Study and Stream Buffer Mitigation Plan Februmy 26. 2014 Greife Associates, LLC 8 BIOLOGIST QUALIFICATIONS Chad Wallin Chad Wallin is a Biologist with professional experience and training in wetland science, wetland ecology, ecological restoration, critical area monitoring, and mitigation planning. His work experience in the Pacific Northwest includes but is not limited to wetland and stream delineations, habitat assessments, marine surveys, wetland and stream restoration, wetland and stream mitigation plans, stream surveys, and related environment studies and surveys. Chad has earned a Bachelor's of Arts degree in Environmental Studies from the University of Washington along with certificates in Wetland Science and Management and Ecology Restoration through the University of Washington. In addition, Chad has completed training for Ecology's Wetland Rating System, Ordinary High Water Mark, and Calculating Compensatory Mitigation in Wetlands. For a list ofrepresentative projects, please contact him at Grette Associates. 9 REFERENCES iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County Tax Parcel Map [map online]. Accessed [27 January 2014]. URL: http://www.kingcountv.gov/operations/GIS/Maps/iMAP .aspx. City of Renton. 2014. City of Renton COR Maps (online GIS). Critical Areas Map. Accessed [27 Janurary 2014]. URL: http://rentonwa.gov/government/default .aspx?id=29886. Interactive Layers= "Streams and Slopes''. Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PREl0-034. Message to markrra)concepteng.org. 0 I November 20 I 0. 13211d Street Sewer Extension Project JO Supplemental Stream Study and Stream Buffer Mitigation Plan Febmary 26. 2014 Grette Associates. LLC 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX A: PROJECT SITE PLAN J 3211d Street Sewer Extension Project A Supplemental Stream Study and Stream Buffer Mitigation Plan February 26, 2014 Grette Associates, LLC /_,(_//_// ,:.__,'/ _ __,_· I -' ,' /. /./ j ' ' ' J:1 ' -~~:r--: / ' ' ' cc,!rncrc ,~-,',•!• ';Ii, .'H \ (TY:,) ' ' ! ! f-----------· •h-1\1/ e,Jf•Ck -------+:--~ I I ~ -o---+ ... I S F~L,q,1 HJ:·rr;: R·F""', 1c,;:;,:,T!C\ 11~,,,~, :-x ·:-;'u; ':,IJf T ;::· (', A·\J l\;I\ / 'T:-..J,:.c_ i r '~i' SHEET 11 . 2+00 r::c~L s~Mk CONr-.L:::.1 JN '1·1"'1 :-:r~ .C:, I) -·L._.\i',i ,::-;f: i ; T,i,X F',1,RCEl ZH~60-05J5 :.,_..,,,.i GH-r:,_~·RTIC:N or Tl,[ ';A\ l AIS:" '~I-WI f\ I ;!·i:· \ \ \_ __ _ 11':, -7-1 _r-'-\ ,,..// · ' ~1:.wr; 1__;,-.,1, __ r:t:.s1r,..,:: "'t!r----@'"., I " -·t>'+ \ ', CITY OF RENTON 1 APPENDIX A S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT Of 1 PROJECT SITE PLAN ........... vr • 1·0· - ' ' ' 3+00 ·'11( (;•Ji~(! f-'r ~Nc:;1;,·t;-RiN;;, r\(;_ ·~. ;o:·;1 :-1 f'l t,N\ _.,,~/'\ "" J " CHIBIT 3A 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENT AL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN ,;. Grette Associatesuc VtNVIAONMENTAL CONSULTANTS :\ o ri l;f f\ 0 4 i['1:,; -'" . ·.·· ,}':'lliiON -·,\,' •Y,T1,\Jt..~,, ·,j(,•--t ·,v:-.:>~; c;!',.'-ir<-~. PrR ,:,'.:w~-;:,-t_·.,;",1\f::l:.;;1\,.J, I\,-i C; :..,I t, °' ' \ \,~ \\ \\~. ' 1:_;· c-/\1\J u~:r i t.:N:: (TY:.-) ,[' I I I I I I I J I :I J 'I I Is, ! 11 \, I I . I I j. _,_\ TAX PARCEL 214'180-0535 i)t•.i"I ,,:;,i1 l<,\f~ll\.l~ m '•·! s.;y"'";::.r~.-. su;rn LINL I'·-~' I I ~, \ \ ---------·-,' \ \ ' l \__ \ ·-- SHEET 1 APPENDIX B CITY OF RENTON ~ ~~-~~~~N1~~~~},~!~~lLC ,.,.,,.....,,,,..,,.,.. ... , 'l,f.""''h'-' OF 2 MITIGATION PlAN S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT .,. ...... -""" 3/4" • 1'0" ,:11;,p...;c,c, -·-~"' EXHIBIT 3f;, 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENT AL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX B: MITIGATION PLAN 132 11 d Street Sewer Extension Project B Supplemental Stream Study and Stream Bt~f/er Mitigation Plan Febniary 26, 2014 Grette Associates, LLC !NORTH RESTORATION ZO~E i @~-.. ,,.-... ' -' ~ "' °g. -!l,~ PLANT LIST FOR RESTORATION AREAS -K----_,, ...... Ole ® ----* --0 ---·-• --~- ~ff ,u~--wlll)t'"'*'-·"-""""'""'"'-- ~-·~ •= ·~ •= ... , __ , __ , __ , __ WS OIVlDE QTV ~LY K'S DIYIDECITYIEOUH.LY ------------------~ SHEET 2 OF 2 APPENDIX B STREAM BUFFER PLANTING PLAN CITY OF RENTON S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT \ \ I ! L-· - • Q~R~~M~ N~~~~~}l~~~1~LLC ,.,1_,,.. __ _. ·;,::""""•"""'' ..,,,,~,"' £:! ~ ;;: LU c! z "' N I- "' ~ ;;: N LL RM-F p.ccESSRDWV IM ZONING MAP BOOK PLANNING • TECHNICAL SERVICES PRINTED DATE: 10102/2013 This document is a g~hic representation, not gu.ranieed io survey ace11acy, aid is based on the best information available as ofb date !llown. This map is intended b Crty display DUlllOSes ontv. Community & Economic Development C.£"Ci,q,'Vln«nl """""~"t<or<>< IL EXHIBIT 4 R-8 g I R-8 ;.:J :a: ~ 00 -I ~ z ::0 "' m :a: ~ ;;;; IM CA IM Sli'.'lTf-1 ! N '" t ~ IM "' IM CA ~ " '5 IM 840 F2E I Feet G2E 24 T23N R4E E 1/2 0 420 b----1 1:9,490 13 T23N R4E E 112 Page 30 of80 City Llmitll D (COR) Commercia!!Office/Res1dentlal c:J (R-4) Residential 4dulac CJ RENTON D (CV) Center Village D (R-8) Residential Bdu/ac [....""=1 Potential Annexation Area c:J (IH) Industrial Heavy D (RC) Resourai Conservation Zoning Delignauon D (IL) Industrial Light c:J (RM-F) Residential Mlllti-F1111ily D (CA) CommerelalArterial D ~M} Industrial Medium CJ (RM-T) Resi. Multi-Family Traditional D (CD) Center Down'i:Jwn c:J (R-1) Residential 1du/ac D (RM-U) Resi. Multi-Fanity Urbai Center D (CN) Commercial Neighborhood [:J(R-10) Re.skiential 10dulac D (RMHJ Residential Manu1adured Homes D (CO) Commercial Office c::](R-14)Resk18ntial 14dulac D (UC-N1)Urbai Center North 1 D (UC-N2) Urba, Centir North 2 Residential LJ (RC) Resource Conservation LJ (R-1) Residential 1 du/ac LJ (R-4) Residential 4du/ac LJ {R-8) Residential 8du/ac LJ (R-10) Residential 10du/ac LJ (R-14) Residential 14du/ac LJ (RM-F) Residential Multi-Family LJ (RM-T) Res Multi-Family Traditional LJ (RM-U) Res Multi-Family Urban Center LJ (RMH) Res Manufactured Homes Mixed Use Centers LJ {CV) Center Village LJ (CD) Center Downtown LJ (UC-N1) Urban Center North 1 LJ (UC-N2) Urban Center North 2 Commercial LJ (CA) Commercial Arterial LJ (CN) Commercial Neighborhood LJ (CO) Commercial Office LJ {COR) Ccmmercial/Office/Residential Industrial LJ (IL) Industrial Light LJ (IM) Industrial Medium LJ {IH) Industrial Heavy c-:::.-:::.1 RENTON {""""--, l_ ___ j Potential Annexation Area PAGE INDEX Page Number SectJTown/Range EXHIBIT 5 0 0 I f--:::, 0 rf) I i ' ,, _ ..... . i -~-;- c· ...:..J EXHIBIT 6 =~~ z m ~ PFCEIVED EXHIBIT 7 ;NTON PLANNING DIVISIOI lAN""'eNVIRONMENTAL CHECKLIST City of Renton Planning Division 1055 South Grady Way, Renton, WA 98057 Phone: 425-430-7200 Fax: 425-430-7231 ii PURPOSE OF CHECKLIST: Cff, . . '.-Nrow PLA.,1.:,·,, .,-_,, ·"· The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all goverrinienfal'age'i'icies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without.the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. V:\2002\active\0015\00022.000 132nd St Sewer\Pennit\SEPA_ 132nd_20140319.doc -, -02/08 A. BACKGROUND 1. Name of proposed project, if applicable: SOUTH 132ND STREET SEWER EXTENSION 2. Name of applicant: CITY OF RENTON 3. Address and phone number of applicant and ccntact person: 1055 S GRADY WAY RENTON, WASHINGTON 98058 425-430-7200 KRIS SORENSEN, ASSOCIATE PLANNER 4. Date checklist prepared: MARCH 19, 2014 5. Agency requesting checklist: ECOLOGY, DEPT. OF ENVIRONMENTAL RE\/!'2/11 SEPA OFF!C!AL PO BOX47703 OLYMPIA WA 98504-7703 (360) 407-6922 YAX (360) 407-6904 SEPAUNIT@ECY. WA.GOV WASHINGTON STATE DEPARTMENT OF FISH & WILDLIFE P0BOX43200 OLYMPIA WA 98504-3155 (360) 902-2578 FAX (360) 902-2946 SEPADESK@DFW.WA.GOV WASHINGTON ST A TE DEPARmENT OF HEAL TH KELLY COOPER P0BOX47820 OLYMPIA WA 98504-7820 (360) 236-3011 FAX (360) 664-8150 KELLY. COOPER@OOH. WA. GOV WASHINGTON STATE DEPARTIJIENT OF NATURAL RESOURCES SEPA OFFICIAL 1111 WASHINGTON STREET SOUTHEAST POBOX47015 OLYMPIA WA 98504-7015 (360) 902-2117 FAX (360) 902-1789 SEPACENTER@DNR.WA.GOV V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-2 - KING COUNTY DEPARTMENT OF PERMITTING & ENVIRONMENTAL REVIEW STEVE BOTTHEIM LANO USE SERVICES DMSION 900 OAKESDALE A VE SW RENTON, WA 98055-1219 (206) 296-7144 FAX (206)296-7051 STEVE.BOTTHEIM@KINGCOUNTY.GOV CITY OF RENTON MR. NEIL WATIS 1 055 S. GRADY WAY RENTON WA 98057 (425) 430-7218 FAX(425)277-4455 NWATTS@RENTONWA.GOV CITY OF RENTON MR. MARK PETERSON 1055 S. GRADY WAY RENTON, WA 98057 (425) 430-7000 MPETERSON@RENTONWA.GOV KING COUNTY PLANNING & ASSET MANAGEMENT STEVE HIRSCHEY, lJTRC CHA.JR KING STREET CENTER 201 S.JACKS0NSTRM512 KSC·NR-0512 SEATTLE, WA98104 206-205-0817 S1E\/E.H!RSCHEY@KINGCOUNTY.GOV RENTON SCHOOL DISTRICT lviA!NTENAf.lCE AND OPERATIONS 7812 s 124'rl SEATTLE, WA 98178 425-204-4400 JOE.LAMBORN@REt•,ffON SCHOOLS.US KING COUN1Y FACIUTJES MANAGEMENT D!V!S!ON REAL ESTATE SERVICES KATHY BROWN 500 4 TI-! AVE. SUITE 800 SEATTLE, WA 98104 KATHY.BROWN@KINGCOU"1'Y.GOV MUCKLESHOOT TRIBE 39015 -172'0 AVE SE AUBURN, WA 98092 (253) 931-8570 VJRGINIA.CROSS@MUCKLESHOOT.NSN.US LAURA MURPHY TRIBAL ARCHEOLOGIST MUGKLESHOOT IND!AN TRIBE PRESERVATION PROGRAM 39015172NOAVESE AUBURN, WA 98092 253-876-3272 ' l.AUAA.MURPHY@MUCKLESHOOT.NSN.US KAREN WALTER WATERSHEDS ANO LAND USE TEAM LEADER MUCKLESHOOT INDIAN TRIBE FlSHERIES DIVISION 39015172NDAVE SE AUBURN, WA 98092 253-876-3116 KAREN.WALTER@MUCKLESHOOT.NSN.US 6. Proposed timing or schedule (including phasing, if applicable): SPRING/SUMMER 2014 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE NEW SEWER MAIN IN THE FUTURE. 8. List any environmental informatio1+you know about that has. been prepared, or will be prepared, directly related to this proposal. GRETIE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED FEBRUARY 4, 2014. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. NONE 10. List any governmental approvals or permits that will be needed for your proposal, if known. CITY OF RENTON RIGHT OF WAY PERMIT CITY OF RENTON GRADING PERMIT CITY OF RENTON VARIANCE CITY OF RENTON ENVIRONMENTAL REVIEW 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. CONSTRUCTION OF APPROXJMATELY 775 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED APPURTENANCES. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-2 - of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132"° STREET, WEST OF RENTON AVE SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 13 TOWNSHIP 23 RANGE 04 EAST, IN RENTON, WASHINGTON. 8. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (circle one); fiat.I ROLUN(aj, hilly, steep slopes, mountainous, other ______ _ b. What is the steepest slope on the site (approximate percent slope?) THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE, LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE, c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. THE SITE GENERALLY CONTAINS ALDERWOOD GRAVELLY SANDY LOAM & KITSAP SILT LOAM OVERLAYING WEATHERED AND UNWEATHERED BEDROCK. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. · No e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTIVITIES, WILL BE EXPORTED TO AN APPROVIED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR CONTOUR IS PLANNED. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES, CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTIVITIES. ALL EXPOSED SOIL SURFACES WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND CITY OF RENTON REQUIREMENTS. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? V:\2002\aciive\0015\00022.00D 132nd st Sewer\Permif\SEPA_132nd_2D140319.doc-2 - CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE. TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS SURFACE. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: 2. AIR TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE CONSTRUCTION PLANS FOR THIS PROJECT TO .INCLUDE THE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TD A MINIMUM DURING CONSTRUCTION. IMMEOIA TE BACKFILL OF TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL. a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke} during construction and when the project is completed? If any, generally describe and give approximate quantities if known. OUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING CONSTRUCTION. b. Are there any off-site sources of emission or odor that may affect your proposal? If so, generally describe. NO c. Proposed measures to reduce or control emissions or other impacts to air, if any: . STANDARD EMISSION .CONTROL DEVICES WILL BE UTILIZED BY CONSTRUCTION EQUIPMENT, AS NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TD LIMIT DUST DURING CONSTRUCTION. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it fiows into. 2) YES, THERE IS A CLASS 4 UN-NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT SITE. Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. YES, THE PROPOSED SEWER MAIN WILL CROSS THE STREAM AT TffE SOUTH WEST CORNER OF THE PROJECT SITE. THE 8-INCH SEWER MAIN WILL CROSS APPROXIMATELY 8 FEET ABOVE THE CREEK AND WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE EAST SIDE OF THE STREAM WILL BE LOCATED WITHIN THE 35-FOOT STREAM BUFFER. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. V:\2002\active\0015\00022.000 132nd st Sewer\Permll\SEPA_ 132rid_20140319.doc-3 - NONE 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No 5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan. No 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste an<;! anticipated volume of discharge. No b. Ground Water 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE COURSE OR THE EXISTING STORM DRANAGE SYSTEM. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following · chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. NONE c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters, If so, describe. RUNOFF,CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS. 2) Could waste material enter ground or surface waters? If so, generally describe. NO d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_~32nd_20140319.doi;-4 • PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. 4. PLANTS a. Check or circle types of vegetation found on the site: ---2,__ deciduous tree: alder, maple, aspen, other ---2,__ evergreen tree: fir, cedar, pine, other ---2,__ shrubs ---2,__ grass __ pasture __ crop or grain _..x_ wet·soil plants: cattail, buttercup, bullrush, skunk cabbage, other __ water plants: water lily, eel grass, milfoil, other __ other types of vegetation b. What kind and amount of vegetation will be removed or altered? THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM, WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTTERCUP, AND MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS, AND UNDERBRUSH SPECIES. c. List threatened or endangered species known to be on or near the site. NONE KNOWN d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, ifany: A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL BE SHOWN ON THE PROJECT PLANS. 5. ANIMALS a. Circle any birds and animals, which have been observed on or near the site or are known . to be on or near the site: Birds: hawk, heron, eagle, ~ongbird@, other ________ _ Mammals: deer, bear, elk, beaver, other----------- Fish: bass, salmon, trout, herring, shellfish, other _____ _ b. List any threatened or endangered species known to be on or near the site. NONE KNOWN c. Is the site part of a migration route? If so, explain UNKNOWN d. Proposed measures to preserve or enhance wildlife, if any: V:\2002\acfive\0015\00022.DOO 132nd S1 $ewer\Permll\SEPA_132nd_2D140318.doc--5- DOES NOT APPLY 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar} will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. NONE b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. NO c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: NONE 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. THEkE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND GENERAL CONSTRUCTION PRACTICES, SPILLS OF MACKI NE FLUIDS, RISK OF FIRE AND EXPLOSION AND OTHER SIMILAR, NORMAL, CONSTRUCTION KAZAROS EXIST. 1} Describe special emergency services that might be required. NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES AND PERSONNEL MAY BE REQUIRED. 2) Proposed measures to reduce or control environmental health hazards, if any: TRENCH BOXES, BRACING, SUMP PUMPS AND OTKER ASSOCIATED CONSTRUCTION SAFETY EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE POTENTIAL_ FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL ENSURE THAT THE SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE OF CONSTRUCTION EQUIPMENT. b, Noise 1} What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other}? NONE V:\2002\a:::tive\0015\00022.000 132nc:l st Sewer\Permit\SEPA.._ 132nd_2014D319.doc-, 6 - 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. SHORT TERM CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITIING AGENCIES. LONG TERM THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT. 3) Proposed measures to reduce or control noise impacts, if any: CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? RESIDENTIAL AND COMMERCIAL b. Has the site been used for agriculture? If so, describe. UNKNOWN c. Describe any structures on the site. NONE d. Will any structures be demolished? If so, what? NO e. What is the current zoning classification of the site? R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE f. What is the current comprehensive plan designation of the site? URBAN CENTER NORTH (UC-N) g. If applicable, what is the current shoreline master program designation of the site? DOES NOT APPLY h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. YES, THERE JS AN UN-NAMED CLASS 4 STREAM ON THE PROJECT SITE. i. Approximately how many people would reside or work in the completed project? V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEF'A_132nd_20140319.doe-7 - NONE j. Approximately how many people would the completed project displace? NONE k. Proposed measures to avoid or reduce displacement impacts, if any: DOES NOT APPLY I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. NONE b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. NONE c. Proposed measures to reduce or control housing impacts, if any: DOES NOT APPLY 10. AESTHETICS a. What is the tallest height of any proposed structure(s}, not including antennas; what is the principal exterior building material(s} proposed. NOT APPLICABLE b. What views in the immediate vicinity would be altered or obstructed? NOT APPLICABLE c. Proposed measures to reduce or control aesthetic impacts, if any: NOT APPLICABLE 11. LIGHT AND GLARE a. What type of light or 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? V:\2DC2\active\0015\00022.0DO 132nd st Sewer\Ferm1t\SEPA_132nd_20140319.doc-8 - NOT APPLICABLE c. What existing off-site sources of light or glare may affect your proposal? NONE d. Proposed measures to reduce or control light and glare impacts, if any: NOT APPLICABLE 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT srrE. b. Would the proposed project displace any existing recreational uses? If so, describe. NO c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: DOES NOT APPLY 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to be on or next to the site? If so, generally describe. NONE KNOWN b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. NONE c. Proposed measures to reduce or control impacts, if any: DOES NOT APPLY 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 PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND FROM THE WEST VIA SOUTH LANGSTON ROAD OR 80TH AVENUE SOUTH. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE AT THE INTERSECTION OF SOUTH 132"0 STREET AND RENTON AVENUE SOUTH . .V:\2002\aciive\0015\00022.000 132nd S1 Sewer\Permlt\SEPA_, 32nd_20140319.doc-9 ~ c. How many parking spaces would the completed project have? How many would the project eliminate? NONE d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? NO 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. NONE g. Proposed measures to reduce or control transportation impacts, if any: DOES NOT APPLY 15. PUBLIC SERVICES 16. a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. NO b. Proposed measures to reduce or control direct impacts on public services, if any. a. b. DOES NOT APPLY UTILITIES Circle utilities currently available at the site: ELECTRIC! ' !NATURAL GAS, WATEaj, §EFUS§ @ERVICEI, [ELEPHON§, SANITARY SEWER, SEPTIC SYSTE , other. 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. INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8- FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON. C. SIGNATURE I, the undersigned, state that to the best of my knowledge the above information is true and complete. It is understood that the lead agency may withdraw any declaration of non-significance that it might issue in reliance upon this checklist should there be any willful misrepresentation or willful lack of full disclosure on my part. Proponent: Name Printed: Date: V:12002\active\0015\00022.0DO 132nd St Sewer\Permit\SEPA_132nd_2D14D319.doc-10- VICINITY MAP SOUTH 132"0 STREET SEWER MAIN EXTENSION V:\2D02\aciive\OD15\D0022.0DD 132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-11 - 249 0 124 249 Feet WGS_ i 984_ Web_Mei-cator _Auxiliary _Sphere RentonMapSupport@Rentonwa.gov 05102/2014 .. /ifuj(i; This map is a user generated static output from an Internet mapping site and 1s for reference only. Data layers that appear on this map may or may not be accurate, current, or otherwise reliable. THIS MAP IS NOT TO BE USED FOR NAVIGATION Legend City and County Boundary 01her L'."'' ~ City of Renton .. Addresses Parcels Overlay Distrjcls Auto Mall A Auto Mall B CJ Employment Area Valley [l City Center Sign Regulalicn Area [2] Urban Design D1s1ricl A None [SJ Urban Design D1slncl B [] Urban Design 01stnct C [] Urban Design District D Development Districts Annexations Annexation History Wastewater Structures Clean Outs J End Cap @ Manholes wetwe11 Wastwater Mains Ci!y, Gravity City, Fori::e Private, Gravity Private, Force City, DI)' King County Mains Gravity Force 0 ~ :::c 1-4 C:I 1-4 -I 00 .S:ityof~tf(on- Finance & IT Division t Kris Sorensen From: Sent: To: Cc: Subject: Hi Kris: Fisher, Larry D (DFW) < Larry.Fisher@dfw.wa.~ Wednesday, April 09, 2014 7:50 AM Kris Sorensen Karen Walter (KWalter@muckleshoot.nsn.us) John Stewart SS Extension/ LUA14-000453, ECF, VAR EXHIBIT 9 I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 <'){{))>< <'){{}}>< 1 • _.(HIBIT 10 LONG-RANGE WASTEWATER MANAGEMENT PLAN A COMPREHENSIVE SEWER SYSTEM PLAN Final 2010 MAYOR Denis Law PUBLIC WORKS DEPARTMENT ADMINISTRATOR Gregg Zimmerman UTILITY SYSTEMS DIVISION STAFF Lys Hornsby David Christensen Michael Benoit MAINTENANCE SERVICES DIVISION STAFF Richard Marshall Stan Job CITY COUNCIL Don Persson, President Terri Briere, President Pro Tern Randy Corman, Councilmember Marcie Palmer, Councilmember King Parker, Councilmember Greg Taylor, Councilmember Rich Zwicker, Councilmember PREPARED BY City of Renton with the assistance of Carollo Engineers - PLAN REVIEW COMMENTS (LUA14-000453) cJ{HIBIT 11 PLAN ADDRESS: DESCRIPTION: Reviewer Comments APPLICATION DA TE: 04/04/2014 The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave Sand east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PIO 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest oomer of the project site, where the 8-inch sewer main will cross approximately 8 feet above lhe stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. Leslie Betlach Ph: 425--430-6619 email: LBetiach@rentonwa.gov Community Services Review Created On: 04/2212014 ; l A. Environmental impacts comments: Protect all trees outside the c:onstruction limits from construction damage and soil compaction Repair damage to trees and shrubs as a result of construction activities. B. Policy-related comments: There are no impacts to Parks C. Code-related comments: There are no impacts to Parks. Engineering Review Created On: 05/02/2014 Please provide geotechnical report for the subject project that details the groundwater level. It is also highly recommended to provide the 100 year water surfac:e elevation of the stream crossing. Planning Review Created On: 05/02/2014 Planning: May 05, 2014 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o'clock (7:00) a.m. and eight o'clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to the hours between nine o'dock (9:00) a.m. and eight o'clock (8:00) p.m. No work shall be permitted on Sundays 3. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. 4. The applicant shall erecl and maintain six foot {6') high chain link temporary construction fencing around the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50') indicating the words, "NO TRESPASSING -Protected Trees" or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees Page 1 of 1 • 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENT AL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN ,;._ Grette Associates•LC v~NVIAO_NMENTAL CONSULTANTS_ 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN PREPARED FOR: STANTEC CONSULTING SERVICES INC. ATTN: REBECCA SAUR 11130 NE 33RD PLACE, SUITE 200 BELLEVUE, WA 98004 PREPARED BY: GRETTE ASSOCIA TESu,e 2102 NORTH 30rn STREET, SUITE A TACOMA, WASHINGTON 98403 (253) 573-9300 CHAD WALLIN BIOLOGIST ~. Grette Associates'LC V !LN_VIBONMElfrAi. c~ONSULTANTS FEBRUARY 4, 2014 DATE TABLE OF CONTENTS 1 INTRODUCTION ...................................................................................................... 1 2 PROJECT DESCRIPTION ......................................................................................... I 2.1 Current Use ......................................................................................................... 1 2.2 Proposed Actions ................................................................................................ 1 3 EXISTING CONDITIONS ......................................................................................... 3 3.1 Stream Classification .......................................................................................... 3 3.2 Existing Buffer Conditions ................................................................................. 3 3.3 Topography ......................................................................................................... 3 4 ANALYSIS OF ALTERNATIVES ............................................................................ 4 4.1 Avoidance ........................................................................................................... 5 4.2 Minimize ............................................................................................................. 5 4.3 Restoration .......................................................................................................... 5 4 .4 Adverse Impacts .................................................................................................. 5 4.5 Compensation ..................................................................................................... 5 5 IMPACT EVALUA TJON .......................................................................................... 6 5 .1 Affected Resources ............................................................................................. 6 5.1.1 Existing Stream Buffer Functions .......................................................................... 6 5.1.2 Impact Determination ............................................................................................ 6 6 MITIGATION PLAN ................................................................................................. 7 6.1 Target Functions ................................................................................................. 7 6.2 Goals and Objectives .......................................................................................... 7 6.3 Mitigation Design ............................................................................................... 7 6.3.J Grading Plan ......................................................................................................... 7 6.3.2 Planting Plan ......................................................................................................... 8 6.3.3 Planting Schedule .................................................................................................. 8 6.3.4 Preparation and Installation CJ( Planting Materials .............................................. 9 7 COMPLIANCE INSPECTION .................................................................................. 9 7.1 Compliance Inspection ........................................................................................ 9 7.2 Compliance Inspection Report ............................................................................ 9 8 BIOLOGIST QUALIFICATIONS ........................................................................... 10 Chad Wallin .................................................................................................................. 10 9 REFERENCES ......................................................................................................... 10 LIST OF FIGURES Figure 1. King County Parcel Map (iMAP 2014) ...................................................................... 2 Figure 2. Topoography map (City of Renton 2014) ................................................................. .4 LIST OF TABLES Table 1. Proposed Critical Area Impact Summary by Type ...................................................... 6 Table 2. Proposed Planting Schedule ......................................................................................... 8 Appendix A. Project Site Plan Appendix B. Mitigation Plan LIST OF APPENDICES 132 11 d Sewer Extension Project i Supplemental Stream Study and Stream Buffer Mitigation Plan February 26, 2014 Greife Associates, LLC l INTRODUCTION Grelte AssociatesLLC is under contract to Staniec Consulting Services, Inc. (Staniec) to prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of Renton Sanitary Sewer Extension project (Project) located at 8223 South l 32"d Street in Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and within Section 13, Township 23North, Range 4 East, W.M. (Figure I). This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been prepared in accordance with the requirements of the City of Renton Municipal Code (RMC) Chapter 4.3.050L-Critical Area Regulations. A Grette Associates"'c biologist visited the subject parcel on January 14, 2014 to perform an assessment of the stream and associated stream buffer within the Project area. Prior to the site visit, the ordinary high water mark (OHWM) determination was completed by the Project proponents. During the OHWM determination, the stream boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all stream related figures to assess the extent of disturbance associated with this Project. 2 PROJECT DESCRIPTION 2.1 Current Use The subject parcel is currently undeveloped. With the exception of the southern portion, the site is mostly a grass field that appears to be regularly maintained and was likely previously used as a livestock pasture. The existing vegetation outside of the maintained area consists of a forested vegetation community that is dominated by Himalayan blackberry (Ruhus discolor), red elderberry (Sambucus racemosa), salmonberry (Rubus spectahilis), red alder (A/nus rubra), and black cottonwood (Populus balsamiferia). Non- native, invasive species observed during the site assessment include Himalayan blackberry, English holly (Llex aquifohum ), English ivy (Hedera helix), bamboo (Bambusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species were located primarily along the western boundary of the subject parcel. 2.2 Proposed Actions The purpose of the proposed City Project is to connect several existing properties that are currently being served by onsite septic systems to the City of Renton's sewer system. The Project includes design of approximately 436 linear feet of new 8 inch PVC underground sewer main along South 132"d Street and approximately 338 linear feet of new 8 inch PVC underground sewer main between the proposed South l 32"d Street alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new sanitary sewer will extend through the subject parcel and will cross over an unnamed Class 4 stream in the southwest corner of the site (Appendix A). The length of the sanitary sewer line that will daylight across the Class 4 stream and associated stream buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line will be placed underground. l 32"d Street Sewer Extension Project 1 Supplemental Stream Study and Stream Buffer Mitigation Plan Fehrua,y 26. 2014 Grette Associates. LLC Figure 1. King County Parcel Map (iMAP 2014) King County Tax Parcel Map 132'"1 S1r eel Sewer Exte nsion Pro.Jee / 2 S11pple m e 11tal Stream S111dv and Stream Buffer Mitig atio n Plan Februarv 2 6, 2014 Greife Associates . LLC 3 EXISTING CONDITIONS T h e o nsite stream that is locat ed in the southern portion o r the subj ect p arcel o ri g in ates from two str eams that likel y collect surface and sh all ow sub surface wat er from the suno unding areas. These two streams join at th e intersection of S. I 32 "d Street and 801 " Ave. South and flow east toward s the su bj ect parcel. Upstream of the conflu ence, the two stream s a re conveyed through a serie s of culve1ts. H owever, at the conflue nce th e s treams begin to flow in a natural c h annel. Within this n atura l stream reach , th e stream fl ows beneath severa l public roads pri o r to bein g fully conveyed through sto1111 water featur es and directed to the south sh o r e of Lake Washington . Within the subj ect parcel , th e bank full width of the channel is a pprox im ate ly 36 in ches. 3.1 Stream CJass ification Ba sed on the City of Ren ton·s stream in ve ntory (C it y of Renton 2014) and previous co1Tesp o ndence w ith C ity staff (Gera ld Wasser 20 10), th e stre am located alo n g the so uth ern portion of th e s ubj ect p arcel is a C lass 4 stream . C lass 4 stream s are non- sa lmonid bearing st ream s w ith intermittent flow s dming years of normal precipitation. Per RMC 4.3.050L.5a, C lass 4 streams ar e subj ect to a 35 foot buffer w idth. Within the Project area, the ex isting s tream bed is compri sed of a sand and fine/m edi um gravel mi xture and is confined w ithin it s banks by a constructed wall of automotive tires. T ire wa ll s a1111 or both sides of the stream c ha nn e l within t he Project area. There is no ev id ence that th ese t ire wall s ext end ups tream o r d ownstream , and it appears that th e tire wa ll s are o nl y present w it hin the so uthwestern portion of the subj ect parcel. 3.2 Existing Buffer C onditions The stream buffer within th e Project area consi sts of nati ve and non-native vegetation species that h ave developed several cano py layers. The dominant fo rest ed s p ec ies within t he stream buffer inc lud e red alder, bl ack cottonwood, and red cedar (Thu.fa plicata ). Beneath th e fores t vegetat io n is a sc rub-s hrub sub-canopy dominat ed by Himalayan bl ackberry, red elderberry, sa lmonbeITy, and magnolia. Groundcover vegeta ti on wi thin th e stream buffe r is sparse w ith an occasional sword fe rn (Po~yst ichum munitum ). However, a long the west ern parcel bo undary, gro undcover is m ore pro minent and is d o m i nated by Engli s h ivy and creeping butterc up (Ranunculus repens). 3.3 Topography T he gen era l topogra ph y wi thin t he subject pa rcel cons ists of a g radu al south fac ing slope (approx im ate ly 14 % s lope) that ext ends to the a pprox imate stream buffer boundary (Figure 2). From the stream buff er bo undary to the left bank of the stream the to pography inc reases to approxi mate ly 28 % s lope. The stream buffer topography associated w ith the right bank o r the s tream is approximat e ly 58 % s lo pe. S imil a rl y to th e left bank, the area o uts id e of the stream buffer is less st eep, approximate ly 14% s lope. Accordi ng to the C it y of Renton·s COR Maps (C it y of Renton 2014), both s id es of the stream are mapped as regul ated s lo pes (>25 % and :S40% slope). 13 2"// Street Sewe r Ex1e 11s io11 Project 3 S11ppl em e111al Stream Study a nd Stream Buffer Mitigatio n Plan Fehrnmy 26. 2014 Gre l/e A ssociutes. LLC Figure 2. Topoograph y map (City of Renton 2014). 4 A NALYS IS O F ALT E RNATIVES The C ity of Renton, p e r RMC 4 .8. l 20 .D . l 9S, requires that any proposed proj ec t that contains a water bod y or associated buffer area eva lu ate alternative methods of deve lo p ing the s ubj ect parcel. Thi s secti o n desc1ib es the e ffo rts m ad e by the proj ect pro ponent t o app ly a lt ernati ve methods to th e proposed Proj ect. An a nal ysi s o f alternati ves is a set of s te ps d esigned to prevent avoidabl e imp ac ts t o the en vironm e nt and the n recti fy t hose impacts th at cannot be avo ided . The step s cons idered during the pl anning of thi s Proj ec t a re desc rib ed below. l 32"'1 Street S e wer Exte11sio 11 Project 4 Supplem ell{a/ Stream Study and Stream B1!ffer Mi1igatiu11 Plan Fehruary 26. 2014 Grelte Associates. LLC 4.1 Avoidance In the case of this project, avoidance is not feasible. In order to provide functioning City sanitary sewer service to existing properties that are currently being served by onsite septic systems, the proposed sanitary sewer extension will require connections between South I 32"rl Street and the existing Earlington sanitary sewer line. No feasible alternatives exist to provide these connections without crossing the stream channel on the subject property. 4.2 Minimize The Proposed project has been designed to minimize impacts to the critical areas within the subject parcel. As currently designed, the proposed Project would require a temporary stream buffer disturbance, approximately 902 square feet in size, that would be associated with the trenching and placement of the new 8 inch PVC sanitary sewer main. Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as is practicable and will be elevated approximately 15 feet above the wetted channel to avoid disturbance to the stream channel. No disturbance to the stream bed or bank is proposed during this Project. Furthermore, the current design of the Project does not propose removal of any existing mature trees, and Best Management Practices would be employed to prevent disturbances to areas outside of the construction area. 4.3 Restoration Restoration of temporarily disturbed stream buffer areas will occur upon completion of the proposed Project (see Section 7). The proposed Project will reestablish preexisting topography and replant the temporarily disturbed stream buffer area with native vegetation. All non-native species removed during the placement of the sanitary sewer line will be disposed of at an approved offsite location, and will be replaced with native species. 4.4 Adverse Impacts Adverse impacts to the stream or stream buffer will not likely occur as a result of the proposed Project. As discussed below in Section 7 .2.1, the Project will employ all necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface soils and to prevent sediment-laden runoff from entering the Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation. 4.5 Compensation With the exception of the portion of the sewer pipe that will daylight, all disturbances to the stream buffer will be temporary. The areas where the pipe will extend from the soil surface are approximately four square feet in total size. This extremely small footprint compared to the size of the stream buffer within the project area is anticipated to be insignificant based on function. Therefore, no compensation is proposed for this Project. l 32"d Street Sewer Extension Project 5 Supplemental Stream Study and Stream B14fer Mitigation Plan February 26, 2014 Grette Associates, LLC 5 IMPACTEVALUATION The proposed Project will result in unavoidable temporary impacts to the stream buffer within the subject parcel. These impacts are described in detail below. The impacts addressed in this Plan are specific to the Class 4 stream and associated buffer. 5.1 Affected Resources As discussed above. the proposed Project will temporarily disturb approximately 902 square feet of stream buffer. However, the existing stream buffer within the Project area does not provide quality buffer function due to the amount of invasive vegetation and previous alterations. Although temporary, the impacts associated with the Project would require removal of vegetation and soil disturbance within the construction area. No mature trees will be removed during this Projecl. No impacts to the stream bed or bank are proposed. 5.1.1 Existing Stream Buffer Functions The stream buffer within the Project area consists of native and non-native vegetation species that have developed a stratified forest canopy. The upper forest canopy consists of mature deciduous and evergreen species that provide shading and nutrient loads to the stream and stream buffer. Beneath the upper forest canopy, the sub-canopy consists of scrub-shrub species that likely provide some shading and nutrient load as well. Due to the topography and the existing armoring of the stream bank, the buffer vegetation likely does not provide significant hydrologic function during seasonally heavy rain events. During heavy rains, the understory buffer vegetation likely does not reduce the surge effect associated with stormwater runoff in highly developed areas. The existing stream buffer likely provides moderate wildlife habitat function due to the presence of the stream and forested area. Wildlife functions within the stream buffer include small mammal foraging and cover, passerine and raptor foraging, and amphibian foraging, breeding, and refuge. 5.1.2 Impact Determination The proposed impacts associated with the construction of the sanitary sewer line will be temporary and will not result in a net-loss of stream buffer function. Furthermore, the current design entails the least amount of impact to critical areas within the subject parcel. With the exception of the daylight portion of the sanitary sewer line, no permanent structure will be placed within the stream buffer area. The portion of the sanitary sewer line that will daylight and span the stream will not adversely affect stream or stream buffer function, as it will be elevated off of the ground and will not impede existing stream or stream buffer processes. Affected critical areas by type are summarized below in Table 1. Table I. Proposed Critical Area Impact Summary by Type. Stream Buffer Sewer Line Installation 902 square feet Temporary J 32'1d Street Sewer Extension Project 6 Supplemental Stream Study and Stream Bi{ff'er Mitigation Plan Fehruary 26, 2014 Gretle Associates. LLC 6 MITIGATION PLAN Mitigation will occur within the subject parcel (Appendix B, Sheet I). Actions proposed include restoring approximately 902 square feet of stream buffer and employing BMPs during construction. 6.1 Target Functions Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve equivalent or greater biological and hydrological functions. The restoration of the temporarily disturbed stream buffer area will provide greater functional value to what currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed provides little buffer function due to existing non-native vegetation and very little ground cover. Restoring the temporarily disturbed buffer area will provide greater vegetation diversity and hydrological function through the planting of native shrubs and seeding of native grasses. Establishing denser native groundcover within the disturbed area will reduce surface stormwater runoff and filter out sediments and toxins from stormwater. Currently, the groundcover within the forested buffer is mostly bare and likely does not filter out significant amounts of sediment and pollutants from surface water. 6.2 Goals and Objectives The overall goal of the mitigation plan is to restore temporarily disturbed vegetation within the stream buffer. With the exception of where the sewer line extends out of the ground, the exposed portion of the sanitary sewer line that will span the stream will not have contact with the ground and thus will not impede natural stream or stream buffer processes. Surface contact with the sewer line will be less than four square feet in size. More specific mitigation goals include: 1. Ensure no net loss of stream buffer function; 2. Provide enhanced native plant diversity; 3. Provide enhanced water quality function. Specific functional objectives of the Plan include: 1. Restore approximately 902 square feet of disturbed stream buffer; 2. Seed all disturbed soils within the construction area. 6.3 Mitigation Design The intent of the mitigation actions at the subject parcel is to offset the temporary stream buffer disturbance associated with the Project and to ensure no net loss of stream buffer function. 6.3.1 Grading Plan Initially, the extent of the proposed work area will be clearly marked and silt fencing will be installed along the outer work limits. All vegetation within the areas proposed for excavation will be mechanically removed and disposed of at an approved upland location. Excavation, grading, and clearing limits within the stream buffer will be limited to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line. 13211d Street Se1ver Extension Project 7 Supplemental Stream Study and Stream B1~ffer Mitigation Plan Febn,ary 26, 2014 Grette Associates, LLC During all construction activities, Best Management Practices (BMPs) will be employed to minimize erosion of disturbed surface soils and to prevent sediment-laden runoff from leaving the project site. BMPs to be employed during construction may include (but are not limited to) silt fencing and/or straw bales around the perimeter of the clearing and grading areas, mulching areas immediately after completion of grading, and installation of plant material as soon as practical after grading. Once the vegetation is removed, excavation and grading will be conducted using excavators, dump trucks, and other like equipment as needed to complete the work. All excavated soils within the stream buffer will be cast into dump trucks for temporary storage and reused as back fill material in the stream buffer area. At no point will equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings within the disturbed stream buffer area will be immediately installed once the final grade is achieved. 6.3.2 Planting Plan Plant installation will be perfonned in accordance with the specifications outlined in this Plan. Any alterations to the planting plan due to site conditions will require approval from the City of Renton prior to installation. The project proponent is only proposing planting within the designated restoration area (Appendix B, Sheet 2). The intent of restoring stream buffer vegetation with native grass and shrub species is to provide greater plant diversity and water quality and hydrological functions within the area proposed for disturbance. Sluub species will be planted on 4 to 5 foot centers and will include Scouler's willow (Salix scouleriana), red elderberry, red-osier dogwood (Cornus stolonifera), and cascara (Rhamnus purshiana). A dense planting schedule is proposed based on the non-native invasive species that are present outside of the restoration area. Over planting will provide a better opportunity for native species to compete with non-native, invasive species. 6.3.3 Planting Schedule The proposed planting schedule for the restoration area is presented below in Table 2. The specific quantities of each species will be calculated during final design of the mitigation action. In order to reduce mortality, a late fall plant installation schedule (October -November) is preferred. Plants should not be installed during or immediately before freezing weather. All remaining bare soils within the restoration area will be seeded within an approved native seed mix consisting of species such as Idaho fescue (Festuca idahoensis ssp. roemeri), blue wildrye (E(vmus glaucus), spike bentgrass (Agrostis exerata), and red fescue (Festuca rubra), or like native species. Table 2. Proposed Planting Schedule ·~;.i NnMJ.e;, Nafilec' ,~\'.::_. __ ,_JJ'. ':,>;-; '• . Stream Buffer Enhancement Seoul er' s willow Salix scouleriana 20 Red elderber~ Sambucus racemosa 6 Vine manle Acer circinaturn 20 Cascara Rhamnus nurshiana 6 1 Plant quantities will be verified following final design. 132nd Street Sewer Extension Project 8 Supplemental Stream Study and Stream Buffer Mitigation Plan ,, ,.·,'?.:,,,,'JI.· ._, . ,',ec,,,·,~o.c\' 2 oallon 2 eallon 2 eallon 2 eallon 4' to 5· 4" to 6' 4' to 5· 4' to 6" February 26. 2014 Grette Associates. LLC All plant materials to be used on the site will be native to Western Washington and will consist of nursery grown stock from a reputable, local dealer. Only native species specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant substitutions must be approved by the City of Renton if specified species are not commercially available. Plant material provided will be typical of their species or variety; they will exhibit normal, densely-developed branches and vigorous, fibrous root systems. Plants will be sound, healthy, vigorous plants free from defects and all forms of infestation. 6.3.4 Preparation and Installation of Planting Materials The landscape contractor shall verify the location of all elements of the landscape plan prior to installation. The contractor may adjust the locations of landscape elements during the installation period as necessary. Circular plant pits with vertical sides will be excavated for all container stock. The pits should be at least twice the diameter of the root system, and the depth of the pit should accommodate the entire root system. The bottom of each pit will be scarified to a depth of 4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary stress. The planting hole shall be amended with a mixture of topsoil and organic material if necessary to provide appropriate rooting media. Broken roots should be pruned with a sharp instrument and rootballs should be thoroughly soaked prior to installation. Set plant material upright in the planting pit to proper grade and alignment. Water plants thoroughly midway through backfilling and again upon completion of backfilling. No filling should occur around stems. Do not use frozen or muddy mixtures for backfilling. Fonn a ring of soil around the edge of each planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each container plant. 7 COMPLIANCE INSPECTION 7.1 Compliance Inspection A compliance inspection will consist of evaluating the plantings immediately after construction to confirm the Plan was followed and the plants were installed appropriately. A walk-through survey will be conducted to verify that installation conforms to the approved Plan. Photographs will be taken to document the completion of the restoration actions. 7 .2 Compliance Inspection Report Within 60 days of completion of stream buffer restoration, the Project proponents will prepare and submit a compliance inspection report to the City of Renton. This report will document the implementation of the restoration actions and describe any deviations from the original Plan. The report will also describe any potential problems identified during installation and any recommended remedies to be proposed to the City. Representative photographs will be taken to further document the implementation of this Plan. 132'"1 Street Sewer Extension Project 9 Supplemental Stream Study and Stream B1{ffer Mitigation Plan February 26, 2014 Grette Associates. LLC 8 BIOLOGIST QUALIFICATIONS Chad Wallin Chad Wallin is a Biologist with professional experience and training in wetland science, wetland ecology, ecological restoration, critical area monitoring, and mitigation planning. His work experience in the Pacific Northwest includes but is not limited to wetland and stream delineations, habitat assessments, marine surveys, wetland and stream restoration, wetland and stream mitigation plans, stream surveys, and related environment studies and surveys. Chad has earned a Bachelor's of Arts degree in Environmental Studies from the University of Washington along with certificates in Wetland Science and Management and Ecology Restoration through the University of Washington. In addition, Chad has completed training for Ecology's Wetland Rating System, Ordinary High Water Mark, and Calculating Compensatory Mitigation in Wetlands. For a list of representative projects, please contact him at Grette Associates. 9 REFERENCES iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County Tax Parcel Map [map online]. Accessed [27 January 2014]. URL: http://www. kingcounty. gov/ opera ti ons/G IS/M aps/i MAP. aspx. City of Renton. 2014. City of Renton COR Maps (online GIS). Critical Areas Map. Accessed [27 Janurary 2014]. URL: http://rentonwa.gov/govemment/default .aspx?id=29886. Interactive Layers= "Streams and Slopes·'. Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PREl0-034. Message to markr(a1concepteng.org. 01 November 20 I 0. 13211 d Street Sewer Extension Project JO Supplemental Stream Study and Stream Buffer Mitigation Plan February 26. 20/4 Grette Associates. LLC 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENT AL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX A: PROJECT SITE PLAN 13211d Street Sewer Extension Project A Supp/eme11ta/ Stream Study and Stream Buffer Mitigation Plan February 26, 2014 Grette Associates, LLC ___ /_/_// 6' WOOD FU,ict. r,i,/ CONC FOOTINGS s·1<[1>},-I H1.f'FR I(~· T(1",·,\ llG~, , i..:.:.' _j /j / ~ . '-. . '-. '~ . . ' / ·,r--· 11 11 I I . II~ ,, -1 i ---.....,.._! r , J: j ·-,_:_1 I i i I 'I',' : ~--------------~_·;,,hi/ t,111,, ' ' ' 2+00 ·::_.,~:L :,iWf'< C.\'lNNEC1 ·,N (!,f r,r~ .-W : ·Lt,.f..! .:c;i' TAX ~ARCU 21~480-05J5 -,_1,,·11(11-;.;11nN or nw ·.1;·;. "'. Al-: '-~I 11/i f'..'. IYI: \ \ \_ --· --l ---.; ' SHEET 1 OF 1 I 1-.e\1\' I -~-.1·, /, F-',"\U ., ,p:: I APPENDIX A PROJECT SITE PLAN \,, '"·" C::T::-_,-[ ,. -'J,.\JIT! .. f-i:', \ ·,i::wr~ N: CA', N:_· CITY OF RENTON S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT --s. 132NO S111[[T, RElfltM. * vr. 1·0· J .-, . ' ;~ • ·,'I '' _."' J. --T=-----=-'----I --· · ' :·,.·c;;c··-J --, . : \ C(J~c;:;:c-r 811r.1, ... ~; (Tc'''.\_\ ' ' -' ' ! ' 3+00 -, 132ND STREET SEWER EXTENSION PROJECT SUPPLEMENTAL STREAM STUDY AND STREAM BUFFER MITIGATION PLAN APPENDIX B: MITIGATION PLAN I 32'"1 Street Sewer Extension Project B Supplemental Stream Study and Stream Buffer Mitigation Plan Februwy 26, 2014 Grette Associates, LLC SHEET 1 Of 2 ;,,, TAX PARCEL 214480-0535 :~ . -" \ I \ E.'·. ( ;-!11\i ! I\;;, ··, 1Tfy; i T/:>) APPENDIX B MITIGATION PLAN --"~) -_ '~ I I I I I I I 'I ). fl t1 i I ~I I J:>- ·.\ -D,'.Y:'•.;'"11 l''..'Rl'(,t-., C1!-1-'~ ·;,~\J -A1~·1 '.,L\',LI\ _INL. /~-- / , " t ii \· :2·· ·:}rn.~ SAN r,~.r~v s~w'1< ', :.!f\l •-:/\SI~•~ \ - \. \ \ CITY OF RENTON • ~~~~tM~ N~~~~~}\~~~'~lLC S. 132ND STREET SANITAAY SEWER LINE EXTENSION PROJECT '"')-,C..S,,Wl<,o,; .,,,.--... , .... -· • [NoRTH RESTORATION ;:'.ONE:j @~: ·~ ·· .. ,, ' ,.. ~ ;g cf?,~, PLANT LIST FOR RESTORATION AREAS I ' ,,_ ----....... ... ---Q @ ._.,,.,..,.ore ----·~ ·--ro .. DMOf.OTYEOUliU.Y fi ---,~, ·--~ tlMCI( QTY EOUAll Y 0 ---·-·~ ·--ro .. DMDE QTY EOUAU Y • --~-•= ·--.. 01VC1E QTV EOVALI.Y -,..~--... c.--. ................. --""" --------- SHEET 2 OF 2 APPENDIX B STREAM SUFFER PLANTING PLAN SOUTH RESTORATION ZONE CITY OF RENTON S. 132ND STREET SANITARY SEWER LINE EXTENSION PROJECT . .,. ......... ,.,.c >"Ml'.'>>, \ ! Kris Sorensen From: Sent: To: Cc: Subject: Hi Kris: Fisher, Larry D (DFW) < Larry.Fisher@dfw.wa.gov> Wednesday, April 09, 2014 7:50 AM Kris Sorensen Karen Walter (KWalter@muckleshoot.nsn.us) John Stewart SS Extension/ LUA14-000453, ECF, VAR I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 <'){{}}>< <'){{}}>< 1 Kris Sorensen From: Sent: Karen Walter < KWalter@muckleshoot.nsn.us> Tuesday, April 15, 2014 9:38 AM To: Kris Sorensen Cc: Fisher, Larry D (DFW) Subject: RE: John Stewart SS Extension/ LUA14-000453, ECF, VAR, Notice of Application and Proposed Determination of Non-Significance Kris, As a follow-up to WDFW's comments for this project, I would like to know why the City isn't burying this new sewer line under the existing stream and if the City intends to keep this sewer line daylighted attached to ecology blocks permanently? Thank you, Karen Walter Watersheds and Land Use Team Leader Muck/eshoot Indian Tribe Fisheries Division Habitat Program 39015172nd Ave SE Auburn, WA 98092 253-876-3116 From: Fisher, Larry D (DFW) (mailto:Larry.Fisher@dfw.wa.gov] Sent: Wednesday, April 09, 2014 7:50 AM To: Kris Sorensen (ksorensen@rentonwa.gov) Cc: Karen Walter Subject: John Stewart SS Extension / LUAl 4-000453, ECF, VAR Hi Kris: I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 <'){{}}>< <'){{)}>< 1 • City of Renton Department of Community & Economic Deve,Jpment ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW({HEET REVIEWING DEPARTMENT: town V\n rl11 . >V('5, APPLICATION NO: LUA14-0o~· ,. , . J COMMENTS DUE: APRIL 23, i&4 ~ '-,:, ... DATE CIRCULATED: APRIL 9, 2014 APPLICANT: Rebecca Sauer/Santee and City of Renton PROJECT MANAGER: Kris Sorensen PROJECT TITLE: John Stewart Side Sewer Extension PROJECT REVIEWER: ., SITE AREA: EXISTING BLDG AREA (gross): LOCATION: West of 8223 S 132nd St; PID 2144800535 PROPOSED BLDG AREA (gross) SUMMARY OF PROPOSAL: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan. A. ENVIRONMENTAL IMPACT (e.g. Non-Code} COMMENTS Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Earth Housina Air Aesthetics Water Linht/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transoortation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS ~~/ie_ cvzA_ /vQ,,,C~~ lo~~ We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact e additional informa · is needed to properly assess this proposal. 4-15-li Date • ) c. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where a ditional informatio 1 is n eded to properly assess this proposal. Signature of Director or Authorized Representative Date Washington State Dept. of Health ATIN: Kelly Cooper PO Box 47820 Olympia, WA 98504-7820 Renton School District Maintenance and Operations 7812 S 124'h Seattle, WA 98178 ng Co. Dept. of Permitting and Environmental Review ATIN: Steve Bottheim Land Use Services Division 900 Oakesdale Ave SW Renton, WA 98055-1219 Laura Murphy, Tribal Archaelogist Muckleshoot Indian Tribe Preservation 39015 172"' Ave SE Auburn, WA 98092 .. ng Co. Planning & Asset Management Attn: Steve Hirschey King Street Center 201 s. Jackson St Room 512 KSC-NR-0512 Seattle, WA 98104 King County Facilities Management Division Real Estate Services ATIN: Kathy Brown 500 4'h Ave Suite 800 Seattle, WA 98104 Lisa Marie McElrea From: Sent: To: Subject: Kris Sorensen Wednesday, April 09, 2014 11:35 AM Lisa Marie McElrea FW: John Stewart SS Extension/ LUA14-000453, ECF, VAR Hi Lisa -Please add to official file. Thanks, Kris From: Fisher, Larry D (DFW) [mailto:Larry.Fisher@dfw.wa.gov] Sent: Wednesday, April 09, 2014 7:50 AM To: Kris Sorensen Cc: Karen Walter (KWalter@muckleshoot.nsn.us) Subject: John Stewart SS Extension/ LUA14-000453, ECF, VAR Hi Kris: I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject project. A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings. Thank you for the opportunity to provide this information. Larry Fisher WDFW Area Habitat Biologist 1775 12th Ave NW Suite 201 Issaquah, WA 98027 425-313-5683 FAX 425-427-0570 Cell: 425-449-6790 <'){{}}>< <'){{}}>< 1 - -De::~~sy~~raw ---~·; [: /21', Cllici~yol~-!1£)--(l __ ·c·· ~-~-·r·-·1 , r , .. , I i I I : I . ' I , . : '. , ! : W,\~.:;,;;,.~· --·' \, .'-j ,.1 .-1 • April 9, 2014 Josh Hobson Department of Community and Economic Development C.E. "Chip"Vincent, Administrator City of Renton Wastewater Utility 1055 S. Grady Way Renton, WA 98055 Rebecca Saur Stantec 11130 NE 33'd PL -Bellevue, WA-98004 Subject: Notice of Complete Application John Stewart Side Sewer Extension, LUA14-000453 Dear Mr. Hobson and Ms. Saur: The Planning Division 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 Eniti_ronmental Review Committee on April28, 2014. Prior to that review, you will be notified if ariy additional information is required to continue processing your appiication. Please contact me at (425) 430-6593 if you have any questions: --Sincerely,_ ~~~ ........ .._. Kris Sorensen Associate Planner cc: John Stewart/ Owner(s) Renton City-Hall ~ 1055 South Grady Way ~ Reriton,Washington 98057 • ren't:onwa.gov City of Renton LAND USE PERMIT MASTER APPLICATION PROPERTY OWNER(S) PROJECT INFORMATION PROJECT OR DEVELOPMENT NAME: NAME: John Stewart South 132"' Street Sewer Main Ex1ension ADDRESS: 8223 South 132"' Street PROJECTIADDRESS(S)/LOCATION AND ZIP CODE: CITY: Seattle ZIP: 98178 Project site is not addressed. Adjacent parcel address is 8223 S. 132"' Street KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): TELEPHONE NUMBER: 214480-0535 APPLICANT (if other than owner) NAME: John Hobson EXISTING LAND USE(S): Vacant COMPANY (if applicable): City of Renton PROPOSED LAND USE(S): Sewer main installation ADDRESS: 1055 South Grady Way, 5lh Floor EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: Urban Center North PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION CITY: Renton ZIP: 98057 (if applicable) EXISTING ZONING: TELEPHONE NUMBER: 425-430-7279 R-14 CONTACT PERSON PROPOSED ZONING (if applicable): N/A SITE AREA (in square feet): NAME: Rebecca Saur Approximately 9,500 square feet (total parcel SF = 53,143) SQUARE FOOTAGE OF PUBLIC ROADWAYS TO BE COMPANY (if applicable): Staniec Consulting Services, Inc DEDICATED: N/A ADDRESS: 11130 NE 33'' Place, Suite 200 SQUARE FOOTAGE OF PRIVATE ACCESS EASEMENTS: NIA PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET CITY: Bellevue ZIP: 98004 ACRE (if applicable) NIA TELEPHONE NUMBER AND EMAIL ADDRESS: NUMBER OF PROPOSED LOTS (if:applicable) NIA Rebecca.saur@stantec.com 425.289. 7373 NUMBER OF NEW DWELLING UNITS (if applicable): NIA C:\Users\jhobson\Desktop\masterapp-S 132nd St.doc -I . 03/11 P.JECT INFORMATION (cont.ed) ~-~--~~-~-----------~ NUMBER OF EXISTING DWELLING UNITS (if applicable): PROJECT VALUE: N/A $280,000 SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): N/A IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): N/A SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): N/A D AQUIFIER PROTECTION AREA ONE SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL D AQUIFIER PROTECTION AREA TWO BUILDINGS (if applicable): N/A D FLOOD HAZARD AREA sq. ft. SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): N/A D GEOLOGIC HAZARD sq. ft. NET FLOOR AREA ON NON-RESIDENTIAL BUILDINGS (if D HABITAT CONSERVATION sq. ft. applicable): N/A D SHORELINE STREAMS & LAKES sq. ft. NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): N/A D WETLANDS sq. ft. LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE NE QUARTER OF SECTION 13, TOWNSHIP 23, RANGE 04, IN THE CITY OF RENTON, KING COUNTY, WASHINGTON AFFIDAVIT OF OWNERSHIP I, (Print Name/s) .._,j.,,,yµ J./,,,Bs,u,/ , declare under penalty of perjury under the laws of the State of Washington that I am (please check one) __ the current owner of the property involved in this application or A-the authorized representati act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained nd t e info lion herewith are in all respects true and correct to the best of my knowledge and belief. Signature of Owner/Representative STATE OF WASHINGTON ) ) ss COUNTY OF KING ) I certify that I know or have satisfactory evidence that ::bi,o."" \,\olr., :::.0 V'\ signed this instrument and acknowledge it to be his/her/their free and voluntary act for the uses and purpose mentioned in the instrument. Notary Public in and for the State of Washington Notary (Print): 'AwJo"'-r: ::::Dcu I Q Date My appointment expires: --=J::...../.,,l_q._./..,-c,"'o'-'-'I Bu..------------ C\Users\jhobson\Desktop\masterapp -S 132nd St.doc -2. 03111 PLANNING DIVISION WAIVER OF SUBMITTAL REQUIREMENTS FOR LAND USE APPLICATIONS •. LAND USE Pl::RflJlffSUa"11rrAL 'i ',''. RECIUIRl::MENTSi( '. ' Calculations 1 c:01p/.,a Ma:e~0rJ?isp1afi ,, Construction Mitigation Description 2 AND 4 o~iibt B1~hi ;oPNaY'beafoatio/i ' a,, ··'a-:·,··:-a'S'\'".".,',:·:.·":a .. ,,•,a .. ·' ' .. · ·.·,, Density Worksheet 4 Drainage Report 2 1::1~Jiiiii:i~!i: Aid,it<acturi/1;··· Legal Description 4 Map c:,( E)<isting.,$iti(Conditions4 Master Application Form 4 Plan Reductions (PMTs) 4 PosfOffice)\,pproval.~ <: This requirement may be waived by: 1. Property Services 2. Public Works Plan Review 3. Building 4. Planning CITY c H:\CED\Data\Fonns-TemplatBs\Setf-Help Handouts\Planning\waiverofsubmittalreqs.xls ···N ., 06/09 PLANNING DIVISION WAIVER OF SUBMITTAL REQUIREMENTS FOR LAND USE APP LI CATIONS r ""'"''"' LA:1110 us1:'PERM1isusivi1rtAL!/,• ...... ' REoUik~M~Nfs: ·· · ' · Plat Name Reservation 4 Wetlands Report/Delineation 4 Witele~s:n Applicant Agreement Statement 2 AND 3 Inventory of Existing Sites ZAND, Lease Agreement, Draft 2 AND 3 Map of Existing Site Conditions 2 AND 3 Map of View Area , AND, Photosimulations 2 AND 3 This requirement may be waived by: 1. Property Services PROJECTNAME: Johv1 <;/.u,.rtJ¥/-)~ (:?Kf, 2. Public Works Plan Review 3. Building 4. Planning DATE: '3/6 /1'1 H:\CED\Da1a\Fonns-Templates\Self-Help Handouts\Planning\waiverofsubmittalreqs.xls 06/D9 ; ',' PLANNING DIVISION ENVIRONMENTAL CHECKLIST City of Renton Planning Division 1055 South Grady Way, Renton, WA 98057 Phone: 425-430-7200 Fax: 425-430-7231 r: ,• i ;1-[·". , r: ..J PURPOSE OF CHECKLIST: >:\TON; The State Environmental Policy Act (SEPA), Chapter 43.21 C RCW, requires all gb~~rnmental 21!)E!'!licies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for nonproject proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For nonproject actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. V:12002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc -1 -02/08 A. BACKGROUND 1. Name of proposed project, if applicable: SOUTH 132'0 STREET SEWER EXTENSION 2. Name of applicant: CITY OF RENTON 3. Address and phone number of applicant and contact person: 1055 S GRADY WAY RENTON, WASHINGTON 98058 425-430-7200 KRIS SORENSEN, ASSOCIATE PLANNER 4. Date checklist prepared: MARCH 19, 2014 5. Agency requesting checklist: ECOLOGY, DEPT. OF ENVIRONMENTAL REVIEW SEPA OFFICIAL PO B0X47703 OLYMPIA WA 98504-7703 (360) 407-6922 FAX (360) 407-6904 SEPAUNIT@ECY. WA.GOV WASHINGTON STATE DEPARTMENT OF FISH & WILDLIFE P0BOX43200 OLYMPIA WA 98504-3155 (360) 902-2578 FAX (360) 902-2946 SEPADESK@DFW.WA.GOV WASHINGTON STATE DEPARTMENT OF HEALTH KELLY COOPER PO BOX47820 OLYMPIA WA 98504-7820 (360) 236-3011 FAX (360) 664-8150 KELLY.COOPER@DOH.WA.GOV WASHINGTON STATE DEPARTMENT OF NATURAL RESOURCES SEPA OFFICIAL 1111 WASHINGTON STREET SOUTHEAST PO BOX47015 OLYMPIA WA98504-7015 (360) 902-2117 FAX (360) 902-1789 SEPACENTER@DNR.WA.GOV V:\2002\active\0015\00022.000 132nd S1 Sewer\Permit\SEPA_ 132nd_20140319.doc-2 - KING COUNTY DEPARTMENT OF PERMITIING & ENVIRONMENTAL REVIEW STEVE BOITHEIM LAND USE SERVICES DIVISION 900 OAKESDALE AVE SW RENTON, WA 98055-1219 (206) 296-7144 FAX (206) 296-7051 STEVE.BOITHEIM@KINGCOUNTY.GOV CITY OF RENTON MR. NEIL WA TIS 1 055 S. GRADY WAY RENTON WA 98057 (425)430-7218 FAX (425)277-4455 NWAITS@RENTONWA.GOV CITY OF RENTON MR. MARK PETERSON 1055S. GRADY WAY RENTON, WA 98057 (425)430-7000 MPETERSON@RENTONWA.GOV KING COUNTY PLANNING &ASSET MANAGEMENT STEVE HIRSCHEY, UTRC CHAIR KING STREET CENTER 201 S. JACKSON ST RM 512 KSC·NR-0512 SEA ffiE, WA 98104 206-205-0817 STEVE.HIRSCHEY@KINGCOUNTY.GOV 6. RENTON SCHOOL DISTRICT MAINTENANCE ANO OPERATIONS 7812 s 124'" SEATTLE, WA 98178 425-204-4400 JOE.LAMBORN@RENTON SCHOOLS.US KING COUNTY FACILITIES MANAGEMENT DIVISION REAL ESTATE SERVICES KATHY BROWN 500 4TH AVE. SUITE 800 SEA TILE, WA 98104 KATHY.BROWN@KINGCOUNTY.GOV MUCKLESHOOT TRIBE 39015 -172ND AVE SE AUBURN, WA 98092 (253) 931-8570 VIRGINIA.CROSS@MUCKLESHOOT.NSN.US LAURA MURPHY TRIBAL ARCHEOLOGIST MUCKLESHOOT INDIAN TRIBE PRESERVATION PROGRAM 39015 172ND AVE SE AUBURN, WA 98092 253-876-3272 LAURA.MURPHY@MUCKLESHOOT.NSN.US KAREN WALTER WATERSHEDS AND LAND USE TEAM LEADER MUCKLESHOOT INDIAN TRIBE FISHERIES DIVISION 39015172NDAVESE AUBURN, WA 98092 253-876-3116 KAREN.WALTER@MUCKLESHOOT.NSN.US Proposed timing or schedule (including phasing, if applicable): SPRING/SUMMER 2014 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE NEW SEWER MAIN IN THE FUTURE. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. GRETTE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED FEBRUARY 4, 2014. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. NONE 10. List any governmental approvals or permits that will be needed for your proposal, if known. CITY OF RENTON RIGHT OF WAY PERMIT CITY OF RENTON GRADING PERMIT CITY OF RENTON VARIANCE CITY OF RENTON ENVIRONMENTAL REVIEW 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. CONSTRUCTION OF APPROXIMATELY 775 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED APPURTENANCES. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries V:\2002\active\0015\00022.000 132nd St Sewer\Pennlt\SEPA_132nd_20140319.doc-2 - of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132"0 STREET, WEST OF RENTON AVE SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 13 TOWNSHIP 23 RANGE 04 EAST, IN RENTON, WASHINGTON. B. ENVIRONMENT AL ELEMENTS 1. EARTH a. General description of the site (circle one); flat.I ROLLING!, hilly, steep slopes, mountainous, other ------- b. What is the steepest slope on the site (approximate percent slope?) THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE, LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE, c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. THE SITE GENERALLY CONTAINS ALDERWOOD GRAVELLY SANDY LOAM & KITSAP SILT LOAM OVERLAYING WEATHERED AND UNWEATHERED BEDROCK. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. No e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTNITIES, WILL BE EXPORTED TO AN APPROVED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR CONTOUR IS PLANNED. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES, CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTNITIES. ALL EXPOSED SOIL SURFACES WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND CITY OF RENTON REQUIREMENTS. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? V:\2002\aciive\0015\00022.000132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-2 - CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE. TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS SURFACE. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: 2. AIR TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE CONSTRUCTION PLANS FOR THIS PROJECT TO INCLUDE THE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. IMMEDIATE BACKFILL OF TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL. a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. DUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING CONSTRUCTION. b. Are there any off-site sources of emission or odor that may affect your proposal? If so, generally describe. NO c. Proposed measures to reduce or control emissions or other impacts to air, if any: STANDARD EMISSION CONTROL DEVICES WILL BE UTILIZED BY CONSTRUCTION EQUIPMENT. AS NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TO LIMIT DUST DURING CONSTRUCTION. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. YES, THERE IS A CLASS 4 UN-NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT SITE. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. YES, THE PROPOSED SEWER MAIN WILL CROSS THE STREAM AT THE SOUTH WEST CORNER OF THE PROJECT SITE. THE 8-INCH SEWER MAIN WILL CROSS APPROXIMATELY 8 FEET ABOVE THE CREEK AND WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE EAST SIDE OF THE STREAM WILL BE LOCATED WITHIN THE 35-FOOT STREAM BUFFER. 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-3 - NONE 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No 5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan. No 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground Water 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE COURSE OR THE EXISTING STORM DRAINAGE SYSTEM. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served {if applicable), or the number of animals or humans the system(s) are expected to serve. NONE c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters, If so, describe. RUNOFF CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS. 2) Could waste material enter ground or surface waters? If so, generally describe. NO d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: V:\2002\adive\0015\00022.000 132nd S1 Sewer\Permit\SEPA_132nd_20140319.doc-4 - PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. 4. PLANTS a. Check or circle types of vegetation found on the site: ___x_ deciduous tree: alder, maple, aspen, other ___x_ evergreen tree: fir, cedar, pine, other ___x_ shrubs ___x_ grass __ pasture __ crop or grain _x_ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other __ water plants: water lily, eel grass, milfoil, other __ other types of vegetation b. What kind and amount of vegetation will be removed or altered? THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM, WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTIERCUP, AND MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS, AND UNDERBRUSH SPECIES. c. List threatened or endangered species known to be on or near the site. NONE KNOWN d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL BE SHOWN ON THE PROJECT PLANS. 5. ANIMALS a. Circle any birds and animals, which have been observed on or near the site or are known to be on or near the site: Birds: hawk, heron, eagle, ~ongbirdij, other _______ _ Mammals: deer, bear, elk, beaver, other _________ _ Fish: bass, salmon, trout, herring, shellfish, other _____ _ b. List any threatened or endangered species known to be on or near the site. NONE KNOWN c. Is the site part of a migration route? If so, explain UNKNOWN d. Proposed measures to preserve or enhance wildlife, if any: V:\2002\aclive\0015\00022.000 132nd St Sewer\Permi!\SEPA_ 132nd_2014D319.doc-5 - DOES NOT APPLY 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. NONE b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. NO c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: NONE 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. THERE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND GENERAL CONSTRUCTION PRACTICES, SPILLS OF MACHINE FLUIDS, RISK OF FIRE AND EXPLOSION AND OTHER SIMILAR, NORMAL, CONSTRUCTION HAZARDS EXIST. 1) Describe special emergency services that might be required. NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES AND PERSONNEL MAY BE REQUIRED. 2) Proposed measures to reduce or control environmental health hazards, if any: TRENCH BOXES, BRACING, SUMP PUMPS AND OTHER ASSOCIATED CONSTRUCTION SAFETY EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE POTENTIAL FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL ENSURE THAT THE SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE OF CONSTRUCTION EQUIPMENT. b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? NONE V:\2002\active\0015100022.000132nd St Sewer\Permit\SEPA_132nd_2D140319.doc-6 - 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. SHORT TERM CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITTING AGENCIES. LONGTERM THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT. 3) Proposed measures to reduce or control noise impacts, if any: CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? RESIDENTIAL AND COMMERCIAL b. Has the site been used for agriculture? If so, describe. UNKNOWN c. Describe any structures on the site. NONE d. Will any structures be demolished? If so, what? NO e. What is the current zoning classification of the site? R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE f. What is the current comprehensive plan designation of the site? URBAN CENTER NORTH (uc-N) g. If applicable, what is the current shoreline master program designation of the site? DOES NOT APPLY h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. YES, THERE IS AN UN-NAMED CLASS 4 STREAM ON THE PROJECT SITE. i. Approximately how many people would reside or work in the completed project? V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_ 132nd_20140319.doc-7 - NONE j. Approximately how many people would the completed project displace? NONE k. Proposed measures to avoid or reduce displacement impacts, if any: DOES NOT APPLY I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. NONE b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. NONE c. Proposed measures to reduce or control housing impacts, if any: DOES NOT APPLY 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed. NOT APPLICABLE b. What views in the immediate vicinity would be altered or obstructed? NOT APPLICABLE c. Proposed measures to reduce or control aesthetic impacts, if any: NOT APPLICABLE 11. LIGHT AND GLARE a. Whal type of light or 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? V:\2002\active\0015\00022.000 132nd St Sewer\Perm1t\SEPA_132nd_2014D319.doc-8 - NOT APPLICABLE c. What existing off-site sources of light or glare may affect your proposal? NONE d. Proposed measures to reduce or control light and glare impacts, if any: NOT APPLICABLE 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT SITE. b. Would the proposed project displace any existing recreational uses? If so, describe. NO c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: DOES NOT APPLY 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to be on or next to the site? If so, generally describe. NONE KNOWN b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. NONE c. Proposed measures to reduce or control impacts, if any: DOES NOT APPLY 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 PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND FROM THE WEST VIA SOUTH LANGSTON ROAD OR 80'" AVENUE SOUTH. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE AT THE INTERSECTION OF SOUTH 132"' STREET AND RENTON AVENUE SOUTH. V:\2002\active\0015\00022.000 132nd S1 Sewer\Permit\SEPA_132nd_20140319.dcc-9 - c. How many parking spaces would the completed project have? How many would the project eliminate? NONE d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? NO 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. NONE g. Proposed measures to reduce or control transportation impacts, if any: DOES NOT APPLY 15. PUBLIC SERVICES 16. a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. NO b. Proposed measures to reduce or control direct impacts on public services, if any. a. b. DOES NOT APPLY UTILITIES Circle utilities currently available at the site: ELECTRIC! • !NATURAL GAS, WATEij, 8EFUS§ ~ERv1cEI, ~ELEPHONE!, SANITARY SEWER, EPTIC SYSTE , other. 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. INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8- FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON. C. SIGNATURE I, the undersigned, state that to the best of my knowledge the above information is true and complete. It is understood that the lead agency may withdraw any declaration of non-significance that it might issue in reliance upon this checklist should there be any willful misrepresentation or willful lack offull disclosure on my part. Proponent: Name Printed: Date: V:\2002\active\0015\00022.000 132nd St Sewei\Permit\SEPA_ 132nd_20140319.doc-10 - ' . VICINITY MAP SOUTH 132"0 STREET SEWER MAIN EXTENSION V:\2002\active\0615\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-11 - City of Renton TREE RETENTION WORKSHEET 1. Total number of trees over 6" in diameter1 on project site: 1. -"'9 ___ trees 2. Deductions: Certain trees are excluded from the retention calculation: Trees that are dead, diseased or dangerous2 --"-0 __ trees Trees in proposed public streets O trees Trees in proposed private access easements/tracts O trees Trees in critical areas3 and buffers O trees Total number of excluded trees: 3. Subtract line 2 from line 1: 2. 3. __ _,O'----trees __ _,9,,_ __ trees 4. Next, to determine the number of trees that must be retained4. multiply line 3 by: 0.3 in zones RC, R-1, R-4, or R-8 0.1 in all other residential zones 0.05 in all commercial and industrial zones 4. __ _,0...,..:::.9 __ trees 5. List the number of 6" or larger trees that you are proposing 5 to retain 4 : 5. 9 trees 6. Subtract line 5 from line 4 for trees to be replaced: (If line 6 is less than zero, stop here. No replacement trees are required). 6. ---·-=8..,_.1,..__ trees 7. Multiply line 6 by 12" for number of required replacement inches: 7. ______ inches 8. Proposed size of trees to meet additional planting requirement: (Minimum 2" caliper trees required) 8. -------inches 9. Divide line 7 by tine 8 for number of replacement trees 6 : (if remainder is .5 or greater, round up to the next whole number) 1 · Measured at chest height. 9. per tree trees ------- 2· Dead, diseased or dangerous trees must be certified as such by a forester, registered landscape architect, or certified arborist, and approved by the City. 3· Critical Areas, such as wetlands, streams, floodplains and protected slopes, are defined in Section 4-3-050 of the Renton Municipal Code (RMC). .. 'p· · ··, ... _, . v•1-· " ,, ,,··r, 4 · Count only those trees to be retained outside of critical areas and buffers. · '· · \ .. ,... r-t V L ,_) 5 · The City may require modification of the tree retention plan to ensure retention of the maximum numlJir /5f O 4 2 0 f 4 trees per RMC 4-4-130H7a I.I. Inches of street trees, inches of trees added to critical areas/buffers, and inches of trees retaine~/~l~\~~~ft F( Nro N are less than 6" but are greater than 2~ can be used to meet the tree replacement requirement · ",'.,!'v:/\1(-: !\'\ii,'.~/O\; V:\2002\active\0015\00022.000 132nd St Sewer\Permit\TreeRetentionWorksheet.doc 12108 0 100 200 Feet NEIGHBORHOOD DETAIL MAP CITY OF RENTON SOUTH 132ND STREET SEWR EXTENSION PROJECT .. ,. .... ~· .. /fetu'rn Address: ,: City Cle;~·,_ Clffice :' qty of iie'ntoi(. :' .fOSS South Grady Way . ·Renton, WA 9~057 _ .... , . 11111111111111111 20131219000501 ClTY OF RENTON EAS 7S.00 PAGE-Hl OF 004 lZ/19/2013 10:19 KXNG COUNTY, UA . 'Title: Utilities .Eas11inent .{ . ,.-'pr<>perty Tax Parcel Number: 214480-0535 Pn,je(!t, f.flt: #~--,:"'. ;:..}· , . Pl'oi~H~,!nme: Sourh 13111 Street s~w~r Extension Grantor(s): -\ ..... ,_ ./·· ·-' cjra.n.t~(.!): I. John M. Ste,.;,;~, •s h_ii sep~·fute esdite .-· ··· i ./Ciry·nr Renton, o Municipal Corporation .... :· . . ,: LEGAL DESCRIPTION: '.···,I -' , ( '\ i'; ; ' LJ'r-·' ~--·j \/ t"· 1 / :, '\ ";,., ,,< , ) ~' •a-·· \ne• :\PF. ll 4 Z0 1A That portion of LoL, 4 and S; .. Blik 20 of J,l_ihgtoQ·Actie Tra;ts, .. ;;i,t~t recorded in Volume 15 of Plats. Page 84. Records ofKiiig'Co\(rity, Was!iingt<in. furt~ iles.\itlbe¥as follows: ;. ,. . .,' .. ,,, :' ' .,: ,-A.15.0-foot ~,de strip of laud lyl~;{5 f~t oi=n~ide of~e rot'to\j'l~;-~;;;..i,~d line: _/'-... • ' • ·:.. ' •' ::' ··1~;,, .... '. ".:, / • Beginning at a point on the north lin~--ih=r •. a~o .. 6eing.-:lhe ~uth'_~ih or'soutt{i 32~ sti~. said point lying 7 .5 feet easterly, .-.·;,;;,.sured .~ug iid nortli'ifuc, ~m Ifie ru>tthwe<t · .... co"'*r thereof; '"'-·-.• / / -:"_ ... ""} ./· / .-:·' .:' Thenhe South OJ' 17' 52" West, parallel to the we.<t lioe tkre;f, 116.81(~1/ : :: ·_. .. ,,: ,• , ·: Tbfnc~-Slllllh._)6' 31' 31" Eas1, 53.00 feet; , , f~~~e SOUlh ~ 1 1·•. IT 53" Wes1, parallel to the west line thereof, 136.53\,c1:/;,,ore or less. to '.-·· the so~th litje thereof and the terminus of this centerline desc:riplion. ;,:j;· situaie int. c;;t; ofltctit~:.· ~~~~iy ~f King, State of Washington. • ···:, .... c' _....,:r/:· ...... , . ...- ,, ...... · ... ,, .. , .. ····' Page 1 ... ,.v• Property Tax Parcel Number:214480-0535 Project N3m~: South n2 Street Stn·er Extension Grnntll<'(s): J. Ci of Renton, a Munici oration ./ . . / ,,,,•' /: :; _;=::.:.::/ , .• ,./' ._;rt,l'u .s'':li~· Grn~ll<•T{s).~ for ~"~-:~fo consi!)~•uim_!..(\r'fnttt~.al Pcnc:tits, du by th~~ 1>n:sroL, grunt. :!~argain •. :si,:11, ~nnv~f, an(r w'd.~ts unt~· ib,~ .. ;iaid Gn:u\tcpi,,it,: :!iU1.'4:C:SSDn1 1tnd assigns,. an eil.~mt:nl for P\lbmr ~ti1;,fc.~ c)°tu:lu~.~,;.bt«. wiqa1~1~4. -~:~ suriitce water) whh ni.-ccssar:y appuncniJt~c~ over. ~·n'd1.T~::~·hrou1h:":u#o:,1:; ond .. .'.upnn·:tl!.~ 1,t~llowing de:i-cribcd property (lhe righi-of-wa)':t tn K\n& Couriry. \lftlshingfon, mar{~!~U1brly described on page I . for the pul'f>~·-~·~'f con.st':~crh:,l rect,~~ruct;Jh~'.;:~~~aUi.~~ r~'(lairing. replacing. enlarging, opmting and maintoini~g_uti_litie< on~:~1m1iY,ipC?Ji"ni:s, :i-~du~ng·b1tf}1n1 limited 19~ \"t('I'. sewer and s1ann drainage lint:!-, ,Ogtther ~kh lhc_,fightJi'r;n~.-Und cgre!3 l~r~to wi1~i.u1 p~iClr ini.tilulinn of any sui1 nr pmcccdifl#S rifl~~ 1t~tfwith~fo1:fRcunii;i&,~11y lcjal ob~ig··~tis or liahiliJy 11,crefcr. Following the inilial coJlst~~iion ~f hs .t"i.cUhies, Gnln(~ ~ frqCittit;su:· to 1irnc cnn!iitnact !iUch a.dditinnal foc:ilities n;t it ~y rcq~i~; ~~ nisc~Cill/is Wlntcd subj'"-cl to the fallowi~g t4.."nm and cauditions: ··:·.··:./ / (( . _./ ./ _...~··•, ..... ·.: ... ,. I. _..,,;..;:~tee shall~ upun cmnplctinn or any ~~ wi;~i·~'~h~:pruty t:-0:ma· . .b)' }be::. . .. cascmci'll,;.~1orc the: ~1.1rface of the ca~cnl, aMil:!J')' pri)!a'.ie !fnproyjmen1.~,,q?Sforbed.: or destruyod_ during n:ecu1iun of the work. as ncuif' afPrac~·able_._tO lh~''C0ndii.iOn---": tl!tr-.wcre i~':immediatdy bcfnn: c:ommcnccmcnt of the worl.f;9r e9tl)' ~Y 1hc: Os,an.t:ee. /2. G·T11111orl shall '.~tain the right 10 use the surface or lite casement -~liong\1ti :.u~1 u~:docs / :· · nol irrlcrrcrc/~ith the cucment righ1s granted lo lhc Grantee. · .. ·· .-·-" Grunliir shalf no1, hnwcvcr. have lhc right 10: ···,, , .... / a.,:"· En::~l or.m'ain\ain. any building,; or stnac~ within lhe eoscmcnt; ot ·,.: . . .. J{ P.tiin~.·fr'ecs. shrut;~::or \'C'gcralion having deep rOOI pttttems which may cnuH 'dat?µlg~ I.I~ nr intcrl~rc with · .,.. .dic.~lilitics..ffl. he p(il.ccd within the t:Dscancnt by the Gramcc: or ·-:·.·,: .. / c. _ / O_~i:lop,/htncikpe_f ar bcauiir)' the easement area in any way Y.-hich would ····=·-, .• , •••. Qflrcosp~abll"in4,..~ .~htfCOSJ~~r, 1hc Gmn1cc of ftSlC1ring the eu.semenl area and ainy pil,vatcJinproicn,i:nts 1hercifl: ... d. Oig. rumn:i ot J1.~dn11 olher.fnrms'.:9f conslruction activities on 1hc pti:U)cny whig.l'"jiuld dji'.iurb.'ithc tj:lmppCOw:i or uncanh Grantl'e's racilitic, on ifl~ risht,Dr-~y. or;--c:ndanger·:q;e lflteral ,SUppo~ facilities. ,. BlaR within fifteen (I~) fit:el or 1hcrigf11-of-.WDy. _: ·. ··: .. This l.."IL"Cffi~U sbalJ nm wid1 ·:~C 11.~lJ' ~~ibccl"h~, and·.shal!/be b~ding Upol\ lhe pilni~. their heirs. biUC(."t."SSur!J:·:1,~ interest ~-nd -~S$ign.i. Gq1i11nrs:i:o~an"(~a1 tliey arc the ID\vful owners nf rhe: nbl'l\l'C proJiet'IU-nhd 1hit rher.° h11v1;{ a sm:id and la\fju!' riS"ht. 10 execure this agreement. · : · · ·· By 1hi!'. convqinncc. Granlor will wumml an~ d~fepd the, S4i.le h~b)lmed~ unto it,'~ Grir1-_1cc against all and every pc:r,;on or personR, whorn~(14,..~.4~, la~fuHY cl11~Ulg ~ to ~&ltn:i the : some. Thi5 conv'-"")''mc:c shall hind the h1.--irs, ex~u1ofS.-.11Chni1limra.t"nrs o.r,:d n.c;..,i;,1gn5 forevi:I'. '¥!§_!: W · REOF, said 2~M.~r hn, cau,od this in~l<U!\1~" :~~•~,'~°": . ..;:hi_:·.:_.' ./i''.;:·· ·. Page 2 :Titl-~: UtHitles Easement Property Tax Parcel Number; 214480-0535 PrbJect FIie a: Project Name: South 132 Street sewer Extension INOl~_VAI. F!l~M 0~ .- ACKNOWiEOGME"7 . , ... i . . ···' .. ~•· ·, . :, .,.•': . ··-., -··· ·: ........ STATE,Of,v,iAsHIN~fqN., ) SS COUl'/tYOF KIN.G"'• i i ) I c;erofy:ihat I kndw. or l\,_ve .• atisfactorv evldence that J:e b o fit? tCt S ,/ sih,.qc::,,..-,.;f-/, ... :·,,/ s;sned this Instrument ind /ackncWiedc:~·WtQ.-b! hi$7her/their free and voluntary act for the uses and · pur?(l!ses ~~ttOrit=d ln.-ihe lnstn1ment. ~ i -· -· •,• -~ .. Page 3 ···,' ' ' ~-...... . .-.... --:· __ . · ... -------. .:::::--:!!._1~!f __ --• .:,,_-. l-o ...J : .. , I 9.. ··1 -··. f I 7~ ~.a,111;11. J J'l'<lfl,,ft.Jlo I (1w, I ---~, ..: ··.·. 30 -------... __ .'.'d-......... _ : b :'··: ...... , ...J ' :· .. ., .... _, . ~ N 0 30 SCALE IN FEET j-·:~==~~:::r:i SD SURVEY CR PROPERTY. PYY!:fER IP . . : . ; . . ..... EASEMENT AREA=4600i SQ.FT. () Stantec CITY OF RENTO'N .' · ·· ... PERMANENT EASEM~NT.-.'· •-: K.C.TAX PARCEL 214480~0035 ... ,. Page4 ·, :-:-. ,:"'"""" .. :1 ' After recording return document to: City Clerk ' . .! \'. City of Renton 1055 S. Grady Way Renton, WA 98057 ' (\ ._ -1·. I' c\, )y \\: .1 J . DOCUMENT TITLE: TEMPORARY CONSTRUCTION EASEMENT RECORDING NUMBER OF DOCUMENT(S) ASSIGNED OR RELEASED: N/A GRANTOR(S): John M. Stewart, as his separate estate GRANTEE(S): CITY OF RENTON, a Washington municipal corporation ABBREVIATED LEGAL DESCRIPTION: Portion of NE 14, Section 13, Township 23 North, Range 4 East, W.M., King County, WA ADDITIONAL LEGAL DESCRIPTION ON PAGE(S): N/A ASSESSOR'S TAX PARCEL NO(S): 214480-0535 TEMPORARY CONSTRUCTION EASEMENT Granter, John M. Stewart, as his separate estate ("Granter"), for and in consideration of mutual benefits, does by these presents, grants, bargains, sells, conveys, and warrants unto Grantee, City of Renton, a Washington municipal corporation ("Grantee"), its successors and assigns, permission to use for public purposes with necessary appurtenances over, under, through, across and upon the following described real estate, , for Temporary Construction purposes, situated in King County, Washington: A temporary construction easement over and across the following described area for the purpose of construction a new sanitary sewer main: LEGAL DESCRIPTION -That portion of Lot 5, Block 20 of Earlington Acres Tracts, as per plat recorded in Volume 15 of Plats, Page 84, Records of King County, Washington, further described as follows: The West 50 feet of Lot S, Block 20 of Earlington Acre Tracts. Page 1 of 3 Grantee shall hold harmless, indemnify and defend Grantor, its officers, employees, residents and agents, from and against any and all claims, actions, suits, liability, loss, expenses, damages and judgments of any nature whatsoever, including costs and attorney's fees in defense thereof, for injury, sickness, disability or death to persons or damage to property or business, caused by or arising out of Grantee's negligent or intentional acts, errors or omissions in Grantee's use of this easement and placement of Grantee's facilities thereon and arising during Grantee's construction of its facilities; PROVIDED, HOWEVER, that Grantee's obligation hereunder shall not extend to injury, sickness, death or damage caused by or arising out of the sole negligence of Grantor, its officers, employees, residents or agents; PROVIDED FURTHER, that in the event of the concurrent negligence of Grantor and Grantee, Grantee's obligations hereunder shall apply only to the percentage of fault attributable to Grantee, its officers, officials, employees or agents; Grantee expressly and specifically agrees that its obligations under this paragraph extend to any claim, action, suit, liability, loss, expense, damage and/or judgment brought by or on behalf of any of its appointed or elected officials, employees, residents or agents. For this purpose, Grantee, herby expressly and specifically waives, with respect to Grantor only, any immunity that would otherwise be available against such claims under the Industrial Insurance provisions of Title 51 RCW. Grantee shall require its contractors, subcontractors and suppliers of any tier to defend, indemnify and hold harmless Grantor, its officers, employees, residents and agents from any and all claims, injuries, damages, losses or suits, including attorney's fees and costs, arising out of or in connection with the design, development and construction of the Grantee's publicly owned sanitary sewer lift station to be placed within said easement, except for injuries and damages caused by the sole negligence of the Grantor. This permit shall become effective upon execution by the Grantor from date hereof, and shall terminate on December 31, 2014. IN WITNESS WHEREOF, said Grantor has caused this instrument to be executed this __£_,_day of 22~~ . 20 I -3 GRANTOR: JBh11 M. Stewart, ~s his separate estate Page 2 of 3 Notary Seal must be within box STATE OF WASHINGTON COUNTY OF KING lss I I certify that I know or have satisfactory evidence that~...,_.='-'----- (\! o cc i > 51 :{-1-:9 P-1[-\ signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument ,. " -j,/~ ro-u:cv~ Notary Public in and for the State of Washington Notary (Print) :\.l 1.0 e.r" . T:. )C~,,re-:,'. A4 u..s~ ol'1 1 ;)Olt -p.,....\~c\ y .?ct'm.b-4--bJ o!0\3 Page 3 of 3