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Home My WebLink AboutLUA13-001568City of Renton Planning Division A THE CONI NY3JULf :4 WATERSHED 750 Sixth Strom South f • KMklvld WA 91033 135.822.5212 t1T5.82].BI26 Science & DeslQnjrPROJECTSITE 3 ...!I, .. .. 1 ..-' VICINITY MAPS ii PROJECT AREA u SHEET INDEX c„ 7 _SHEET TTTLE IEwNm»Ow,a Ee+°.E'nu vice. jr a T11c a.rxME r»c M19,8`ov.os`°`o°. r i,°rw ss LU s. I. FJOnNDCOSOOON{ x___a 1. HOIOSFD MILTS MO IMM HON r .-- v---.i F aa M•-E 1. PROPOSED NAN,TNGANDmfMsuED PLAN jyV•- 0 H UETKZ NO AE01CAlKild SONO'°Ink toff. T Tsa STANDARD E'uwjEn \ E_T a1»Eo e/rnSryl1 S. S au\a»o.l—-—,r' - l -— ,- f., S - E \ , Ij Mmacs Timis„ • O NOTESI. SURVEYEY D.R SIROHG<ON0.RTNG CIS q q`_ i ` T____` 1j '\.Vf' E p W T METSAAOS AND ENONEEPS.PM TSiRFAH DEIMOTED ST sHrs -• a O y`___ t 201)MAD Mk 01' DT•` ^^ Op N „ e i \\ \\,m y Sy! uwALLNRTAND CONSULnT,G INC.SIRJE4 I ` IliTouEEC—r-= D Dy Ooo °ya--p"y" Md?- \DyP Z w0E cOx tJ k I. I re TEIM NO-CAP PY--DF—W •WI `. D^\\ OF„` .•"tv...n CA—M '/ Q 61 E w[TurOA UT1 w YJ Y COS ae».. PPM 3, urn. N svasTATgwIR1NER \ y W n"1t.m- - . i I nF _"a\ 'e-kc,: t , e a°. 4E u ° B= M rw r, q -\ ,. v > >s-Ir.IOE o S U aZx:„ a T sv V`" sw• . I c' d l7 Ft am j 0 O s4 ,.r due' I.-1`lk-crw rn hroE' Ca I >. 3.rw I 2 I..- .. Do m ,I w ; • C, , fl T' w1 ' w T wLs, \; E %'cr,Ir e `` \\i —sI 81 a C E e ylj n luwov\ nue e ° mow n wE•/ w w Ie 1 !Y ASS r cp Iq•rm F A/1\ i I CRAWL Yco 'F ^b•,aG k\°ur_ .» s I \ ' M (, .•.: rouo0.• y+ »rIn'TEvwI NO-UP `\ zill .: r r.T.•\ n# r 6y ,"`. NUM MOUNT a«w..NOr g- `----'-- ®. — -- `..— w'4_-- T > i, J., Y.."L cr° Mn` I\\ Nt rDD / v I 1 t • A wv r sr 1111,I! •— HIE I tr NEW IV/YELLOW CID`.•,+L6i xw rrw ea. r.F I r. so, I.. rcaxc KW rn OCT a0 ;`r cx. (. K.1 I I-- II gkaz r. Ica NON. _ a J w sKo A Ilru IP' w vr„•a p a y1: I i a f U.IIEED EEI[r»c q[Ifrn a. \Ch•SI»II[ ! Ea r —.— a n ll A// SHEET SIZE: i 1, ORIGINAL NM IS Sr r HI. I SCALE ACCORDINGLY Y to»WH I J+•x•• 1 THAT/T/Y J I, r cn rA Nosta ct„ PROJECT MANAGER: HM r x x su w ,n•v; • r•v r . yp es DESIGNED: MF I DRAFTED: MF— CHECKED: MG EXISTING CONDITIONS o 3n w 12a „ IOBNUMIE30720 ' SCALE:I.=30.-0' y SHEET NUMBER E THE WATERSHED THE 750 Shah Street South• Kirkland WA98033 p 425.8225242 P.415.827.8136 f.- °- j WWW.watershedco.com neAy j ton Science & Design Planning Division LEGEND Z WI. r I WETLAND O HONEY E STANDARD WETLAND BUFFER UNE SD4Y 0 Z_ H C llM!D STANDARD STREAM BUFFER UNE:35'-LY R O W O,& STANDARD BUILDING SETBACK UNE:15,0. J ti Q u j TEMPORARY WETLAND IMPACT:424 SF ra ill V Z TEMPORARY STREAM IMPACT:113SF Vl W N Q Z V///A TEMPORARY WETLAND BUFFER IMPACT SF W to O GW. Vd 8z. OIMITIGATONAREA1,5065E Dd 0 aoI, v2 DISTURBANCEARFA D6NRBANCEARFA WATER MAN AIMED TO AVOID WATER MAIN RUNS THROUGH J 1543'WIDT3 CI'BNG A" 3'L'MAXTRENCMWIDTI. DAMAGE TO MT..TREEROOTSTO STEEL GSM BENATRTRE' JQ` _TO BE RESTORED N PULE.OBE RESTORED IN RACE THE MWMUM EXTENT POSSIBLE' - CREER,BURIED WM 5'-0•. SEE CRY FOR MORE DETAIL' LyJ i 4` DVS i t-1 cCI I. 92,. FIR `` 2 fIR`• r^h2' f 1' FO lND 1: 1 ' .\. 7? yy; 56" FIR W/ T'.EL gk L--- FL CRONE. 6. aa_ r T i %:4. ', 1 ETC SDI R WWUm\\t ?` r2 . -- i/:',/' i •: r icro it L i 0. ii0 i;:t. - fica.. 3 01>—;,,, a, ,,' fri/l;S f c'&?,u.•,_7 ii iJr =:a J:r.+r.:r_+—\,` .!/q' o .-. I / or,—.. J Tu/ o/%%/%•, 1., . L„ r f`--` E r >L`'` . \ _off-or,__or_oP- 0- B-3 '\o' 7.b1 a ol>—.._. o ON—.`or,_a2_.,o, ,„,,,dP`T' 0 0-- . Ws p- v. ' ' OPT-o A d.; .\ i Q,-i - .,), O1?—_OP —Df>_—OF'— N CV I `_ 11. ,I k. •,A-E f SHEET SIZE 13F7'.I q` "owrnALMAN B2r.3r, t i DRY, ,) SCALE ACCORDINGLY i 1 T\ I , t . I \ .' ,\ i ``I R+'` , PROJECT MANAGER HM 11 ) P `.. [ \ J`.- DESIGNED: MF @. DRAFTED: MF— CHECKED: MG JOB NUMBER:I PROPOSED IMPACTS AND MITIGATION" 4D- 130720 9g SCALE IB= 10T-00 SHEET NUMBER: E T etT.N ... 2 OF 5 RI i GRAVEL SPECIFICATIONS-CREEK MITIGATION AREA • PLANT SCHEDULE- AREABUFFERMITIGATIONAREAPLANTSCHEDULE-WETLAND MITIGATION AR THE STREWED GRAVEL-ALL SHALL CONSIST OF TOTHEADED ROUNDED WATERSHED f-LA\ ROCK INCLUDING FINECCONfORMINGCLOSELY THE FOLLOWING SIZE SCIENTIFIC/COMMON NAME ay SCIENTIFIC/COMMON NAME COMPANY I <AInchONBY WEIGHT: SMALL T000S-AILTREED TO BE HEALTHY6 WELL BONGED.SHRUBS-ALL WRUBS TO BE HEALTH%FULL&VIGOROUS. V.to Y.mcA 30% - AVINEMRNATUM 3 LONICERAWVOLUCRATA B 750Sbnh Street South 105030din 30% VINE MAPLE BUCKTWINBER0.Y Kirkland WA 98033 I Vi to3NAeS 70% CWEETER CORNUTA 3 RUBUS SPECTABILIS IlmSInchesS% WESTERN HAZEL SALMONBERRY P 425.832.5241 f 425.8179136 www.watershcdco.comSHRUBS-ALL SHRUBT TO UNHEALTHY.FULL&VIGOROUS. EMERUEHTS-ALL TO BE HEALTHY&WELL ROOTED Science & Design City Renton.i3 ;7'p { ORMLERLA PRY PAOFORM6 8 GSLOGH SEDGE OBNUFTA 47 2'-O.O.C.SPACING ROSANVTKANA 10 NOOTKA ROSE Planning Division RUBUS SPEGTABI IS 7 0 SALMONBERRY SYMPHORICARPOSALBUS 28 Z SNOWBERRY j I 5/ PERENNIALS/GROUNDCOVER-ALL TO BE HEALTHY b VIGOROUi JUL .R ®. , Y PSWOOFEUMM MUNRVM RU 2'-0'O.C.SPACING. a F Q DISTRIBUTE THROUGHOUT O W-PIANTWG AREA IN Z CLUSTERS OF NO LESS F p emu SS'' MORE THTHANREEFIVEANDOFOQ L 5 Imo,© A YFERN MINA THE SAME IS SEE ABOVESPECIES O QLLLJJJLLLIIIvVIf`-'1 mw Q ,... 3 N YQPREPARETOPNINCHESOFSOlASFiBRESTORETOCOSTING MIREDIN 19TIG GRAMME*TION NOTES GDSUaSTPATE ySEETHGSHEETFORGRAVEL SPECIIPATIONS. LL I Q I MINIMIZEDG:n°I RE" NCETO aooTx I 77 u- 2 eB uFTEn PwMULCH MIRE lS; ; 1 _ 6 "'```IJD{ A1. \ b y \ IF\ y \y y N. 0 1, - .0 PULING BACK MULCH FROM STEt4.SEE MITIGATION NOTES. t 1,,- =— y ` y - y \\y c- o- I 0 filrAWIF 14: 11::::: _ w417., 1"*'.- erep, vozitpir,A.,,,,,,,,t„..404,44,104 ,,,› ..,00.„:„.0 .vrt,_ ,t,..voit-.401t4t.. 154:::.„ 4,4411:64113:-40,.*..,.. s. .„ I-wok hi= , - • L. 07f o 11111k044 fiki-.--" afrilirellViiiiikpfil:1 Ore, ,t,. Ori... s I. ''' . . tfiro w-44411P/4-4-11171.4-......reAT 4,-..,,N-„,Q., liati,e0_i_ _ ,•,YC:OYirIS. `• e+— NI. or--arm_ y N. •y Ji }.- Z - 'tD' N o D` - .GP-nR _a• ; =- oP o=rA_D c - cm y y sk .I' g 0?- —OP—_\OOP OP op—OR L y \ iy y p. 4, • SHEET SIZE: Q\ a ' At 14 W- y V O OP' OS00000LWnl1•N•. I sGIEACCORDWGLY. i T I y \ y\ y y PROTECT MANAGER: HMLDESIGNED:MF S i\;' - i/"5/C1 y ':`k y\ y y DRAFTED: MF— CHECKED: MG PROPOSED-PLANTING AND STREAM BED.PLAN JOB NUMBER: 6® o_ S. I r 2D 130720 ® q SCALE:I R—SI-0n SHEET NUMBER: F 4 II PLANT INSTALLATION SPECIFICATIONS PLANTING NOTES THE NOTE THESE SPECGTONfAE A LEGALLY BINDING CONTRACT I. Native plant shall occur between September 15th and December 15th during frost-free periods WATERSHEDN cENEeALNOTTS for best COMPANY 2. Remove any and al Invasive weeds and their anti from the planting area.Spedes targeted for removal 1' v v of Jy® A s nQUARYASSURANCEincbideHimalayanblackberry.English holly,English by,Scot's broom.Japanese Rnotweed.English laurel, r ...Wi.ATTT7 I }d flW`61Ip'I. PLWFSSHALL MEET ORE0CED THE SPEOFICATOW OF FEDERAL STATE.AND LOCAL LAWS REQUIRING Yellow Rag Iris and morning glory.750 Shah Street SouthINSPECTIONFORPUNTDSFASEANDDSFRCONTROL3. Locate aff existing utllNes within the Emit of work The contractor Is responsible for any utility damage as2PLANTSSHALLSEHEALTHY.VIGOROUS.AND WELL-FORMED,WIHWELLDEVELOPED.FIBROUS ROOT SYSTEMS FREE Planningt'T 'S Kirkland V`/A 98033 FROM DEAD BRANCHES OR ROOTS PUNTS SHALL BE FEE FROM DAMAGE CAUSED BY TEMPERATURE EXTREMES, • result of the lanFkapO construction. • 1 GCI 111111g DivisionLACKORIXCEISOFMOISTUREINSECTS,DISEASE.AND MEowaGL INJURY.PUNTS W LEAF SHAH BEWFLL •4, Loosen any compacted soils In the planting area. . p425,B225242 f 415.817.8136 FOLIATED AND OF GOOD COLOR PLANTS SHALL BE HABITUATED TOTNE OUTDOOR ENVIRONMENTAL • 5.. Layout plant material per plan for Inspection by the Nestor Lon spetblhL Plant substhudola Will NOT be WWW,Watershed<o,com CONDITIONS INTO WHICH THE—TWILL BE PANTED(HARDENEOAPF) allowed without the approval of the restoration specialist 1 TREES WTI DAMAGED.CROOKED.MULTIPLE OR BROKEN LEADERS WILL E EJECTED.WOODY PLANTS WITI 6. Install plants de[Bty 5m th65hmtfor phnMR death and Installation TPedfl¢tlom.SCtence & Des-ign ABRASIONS OF THE BARK ORSUNSGLD WILL E EJECTED. D1a^ Per planting 7. Water each plant wthoroughlyremove pockets.• in QQ/AjDEFINMONS8. Install a4'depth,coarse wood-chip Lyer throughout entire buffer planting are oatsideofOHWMmark JUL ei ® 1.1`PI. PLVNILPIAHe MATERIALS.PLANTS AND PLANT MATERIALS SHALL INCLINE ANYUE PLANT MATERIAL USED ON r THE PUOIECT.11i6 INCLUDES BUT 6 NOT LIMITED TO CONTNNER GROWN,BRB OR BARER00T PUNTS:NNE ammpo fSTALESANDFAtONES(WATTLES).TRIEE,CORMS BULBS ETC;SINGS PLUGS,AND LINERS 9. Install temporary Inigatlon rystem capable delivering 2'of waterper,week to the entire planted area, 1 CONTNNER GROWN,CONTNNERGROWN PINTS ARE THOSE WHOSE ROOTBAUS ARE ENCLOSED W A POT OR BAG W WHICH THAT PANTGREW. OwnersThe landscape contractor it pThall nvrgs anda0 plant material code luf and o approval by mho Owner or suennuTlDw Owners representable.All pianongs and workmanship shall be guaranteed for one year following final owner I. RMARKETING NTMRo0.5RANGEM®MYTOOBE MADE ORDERR T SUPPLY SNORED OWING atmpUMa I I U ZMsTHECONTRACTORSRESPOMEVUTYTO MUST BEMADEWORD MTERIALSJ ADVAEDMATECIAL IL/j\/`-, i] V2, SUBSTDUTIONOF PUNT MATERIALSNOT ON THE PRoJECT UST WILL NOT E PERMITTED UNLESS AUTHORIZEDW PLANTING DETAILS T1-WRITING BY THE LANDSCAPE ARCHITECT/CONSULTANT. 1 IF PROOF IS SUBMITTED'NATANT PLANT MATERUISPECIRED/SNOT OBTNNABLE,A PROPOSAL WILL BE. Z CONSIDERED FOR USE OF THE NEAREST EQUIVALENT 5GEE OR ALTERNATIVE SPFOES.WITH CORRESPONDING NOTES ADCHt00NT OE CONTRACT RUCE.I PLANTING DULLFITULL NOT BE LESS TUN NI TIM ZES 4. SUCH PROOF WILL E SUBSTANTIATED AND SUBMITTED IN WRITING TO THE CONSULTANT AT LEAST 30 DAYSpUpRill THE WIDTH OFTHE ROOT BALL DN LLITOSTARTOFWORKUNDERTHISSECTION. 3.;LOOSEN Swot AND BOTTOMS MIOFPIANG PIT O Z INSPECTION S.SOAK PUNTING PR AFTER PLANTING rWr.. F d QAD I. PLANTS SHALL BESUBIECTTOINIRECTON AND APPROVAL BYTHE CONSULTANT FOR CONFORMANCE TO REMOVE FROM POT A ROUGH-UP ROOT BALL BEFORE Fr1re O I' O SPEOFlCATIONS ETTHER ATTME OF DELIVERY ON-SITE OR AT THE GROWERS NURSERY.APPROVAL OF PLANT IWTALUNG UNTANGLE AND STRAIGHTEN CBICUNG Z CO MATERIALS ATM'THE SHALL NOT IMPAIR THE SUBSEQUENT RIGHT OF INSPECTION AND REJECTION DURING ROOTS-PRUNE IF NECESSARY.V PUNT 6 0A PROGRESS OFT.WORK. EXCEPTIONALLY ROOTADUND,DO NOT PLANT AND 2 RUMS NSECTED ON SITE AND EJECTED FOR NOT MEETING SPECIFICATIONS MUST BE REMOVED IMMEDIATELY RETURN TO NURSERY FOR AN ACCEPTABLE ALTERNATIVE J 0 a a FROM SITE OR RED-TAGGED AND REMOVED AS SOON AS POSSIBLE. 0 LLI S. THE CONSULTANT MAY ELECT TO RISER PLANT MATERIALS AT THE PUCE OF GROWTH AFTER INSPECTION AND ACCEPTANCE,THE CONSULTANT MAY REQUIRE TIE INSPECTED PLANTS BE LABELED/ND MEWED Mt PROJECT. 4'MULCH/ r ::: MTR MULCH FROM W V In Y E 42 Z MEASUREMENTS OF PLANT I I FINISH GUDE W W 1,1 TT OI. PUNTS SHALL CONFORM TO SRPEEOFIED UNLESS SVBSTIVTIOW ARE MADE AS OIlTUPSDNTGS CONFAB. C u2. HEIGHT AND SPREADDNEWIOW SPECIFIED MEERTO MAIN BODY OF PANT AND NOT BRANCH OR ROOT TIP TO S jTIP.PUNT DPIENGONS SHALL BE MEASURED WHEN THEIR BRANCHES ORROOTS ARE N TIDRNONULPo9110N V1. WHERE A RANGE OF SIZE LS IANTS SHALL E AS LARGE HE MEDIAN OOF NO PLANT FTHE ME RANGG BE LESS ENTM(FXAMPLE:IF THESE RANGEEMINIMUMSIZEANDATISIITOIWATE1 grEN O 0 0 ZREMOVEDEBRISANDURGEROCKSANDwoo.CBS SVaP4lTAIS LEAST SO%OFPlMI1S MUSTS lS'TALL) VIIIII NATIVE SOIL FIRM UPSOLMOUFID FLAW W L. O PROPOSED PLANT SOURCES I Z. AOI. WORN4 OFT.5 DAYS AFTER AWARD OFT CONIIIAR R,SUBMA COMPETE UST OF PLANT MATERIALS PROPOSED TOWORNBEPROVIDEDDEMONSTRATINGEQURIEMFNRSPECIFIED.IN CLUDEO.UDFTHE NAM6A'D ix/- nNCA LL /RooIaA N N PO TIE E ADDRESSES oF ALL GROWERS AND NURtFPst. TREE&SHRUB PLANTING'DETAI •L LLI PRODUCT CERTIFICATES O runs . LU•I. PUNT MATERIALS UST-SUBMIT DOCUMENTATION TO CONSULTANT AT LEAST 30 DAIS PRIOR TO START OF WORK d UNDER THIS SECTION THAT PLANT MATERIALS HAVE BEEN ORDERED.ARRANGE PROCEDURE FORNSPERKON OF PUNT MATERIAL VAIN CONSULTANT AT TIME OFSUBt766pN. NOTES:" 2 HAVE COPES OF VENDORS OR GROWERS INVOICES OR PAOLING SNIPS FORAM MANS ON SITE DURING - I.PLANT GROUNDCOVERAT SPECIFIED DISTANCE ON-CENTER(O.C.) INSTALUTON INVOICE ORPACNG SUP SHOULDLSTSPECIES BYsosncn IC NAM OUNITY,AND DATE USING TRIANGULAR SPACING.TYP. • DEUJERED(AND GFNETICORIGN IF THAT INFORMATION WAS PREVIOUSLY REQUESTED). 1 LOOSEN SIDES AND BOTTOM OF PLANTING PR AND REMOVE DEBRIS. DELIVERY,MANDUNc,OSTORAGE 3.LOOSEN ROOTBOUND PUNTS BEFORE INSTALLINGINSTANG 4:SOAK PR BEFORE AND AFTER INSTALLING PLANT. NOTIFICATIONCONTRACTOR MIST NOTIFY CONSULTANT AB HOURS ORMOE W ADVANCE OF DELIVERIESWTHAT - CONSULTANT MAT ARRANGE FOR0SPECTION I O 1Ns.\I,A%• A s/,ll.l A,\n}F\ aE[ll.l 4'.SPECIFIED MULCH:HOLD PLANT MATRAS d311;.A%l`.M.1\iS5Ib4+__ rco11litt II, `:III0:N/,ir.l_ BACK MULCH FROM STEMS I. TR4EPORTATION-WRING SHIPPING:PUNTS SHALL BE PACKED TO PROVIDE PROTECTION AGAINST CLWATE. 1•:r\ A y7 EXTREMES,BEara-F ANO DRYING PROPER VENTRATION AND PREVENTION OF DAMAGE TOBARX.BRAN(2e.. Ar,,I=1b=:Fwel1 I.,1'//d.lANDROOTSYSTEMSMUSTBEENSUED: 2 503EDWNG AND STORAGE-PANTS SHALL BE DELIVERED AS CLOSE TO PLANTING'S POSSIBLE PUNTS IN v q• I II, Ili V / I' SOIL AMENDMENT'SSTORAGEMUSTBEPROTECTEDAGANSTANYCONDITIONTHATSDETRIMENTALTOTHEIXCONIIUEDHEALTH. AS SPECIFIEDANDVIGOR.' B. HANDLING-PANT MATERIALS SMALL NOT BENANDLED BY THE TRUNK.LIMBS OR FOWGE BUT ONLY IN THE i- lI, `r r.Ru' 1...- - O •CONTAINER.BALL BOX.O0.OTHER PROTECINESTRUCIIIPE EXCEPT BAEROOTPIANTS SHALL BE I(FPTW H BUNDLES UfBRANTNG AND THEN HANDLED CAREFULLY BY THE TRW:1%00.51EM Ill . 11=31F.11;.1 L=.13=1L=.11 4. LABELS-PLANTS SHALLHAVE DURABLE LEGIBLE UBNS STALING CORRECT SCIENTIFIC NAME AND SDE TEN PERCENT OFCONTNNERGROWNPTSWINDMDUALPOTSSHALLBELABELED.RAMS SUPPLIED IN FURLW PACKS BOXES. OR BUNDLES STALL HAVE ONE LABEL PER GROUP. - 01 • W, Ei ODGROUNDCOVER&PERENNIAL PLANTING DETAIL N PLANT WARRANTYRAMS MUST BE GUARANTEED TO BE TRUE TO SCIENICRC NAME AND SPEOF1EEl SIZE AND TO BEHELLTHYAND , CAPABLE OFNGOROUS GROWTH o REPLACEMENT NOTES: . I I. PLANTS NOT FOUND MEETING ALL OF THE0100 REQUIRED CONDITIONS MUST BEEMOVED FROM NTE AND EPUCN r I.MAKE SUITABLE HOLE VATHA0.0CK BARIMMIX/2E0,Th.CONSULTANTSDISCRETION. 3. PUNTS NOT SURVIVING AFTER ONE YEAR TO BE REFUGEE,AT THE CONTRACTORS EXPENSE OR EQUIV.PUNTING TOOL e 2 INSTALL PLUG DIRECTLY INTO SOTS_ PLANT narERwL nil ll l i=1L11 1. .ng11 IAli.l. It GENERAL II II 1=11=1 Walt Taal SHEET SIZE:I. PLANTS coreameNs B6 NVEERYGROWN INACCORDM'CE V41M GOOD HORTICULTURAL PPACII(ISUNDER Cl3tAi1C II I II=11 II .`ir,-ii CONDMOMRMIURTO OR MORE SEVERE THAN THOSE OF THE PROJECT SITE I ' i\ II—II I II'I YIN.II ORIGINAL PLAN/S 3P x H', IIPLANTSSHALLBETRUETOSPFOISANDVARIETYORNBSPEDES,NO CULTYARS ORNAMED WRITES SHALL E - 1111FV11.11 1 liltII1FV I IUSEDUNLESSSPECIFIEDASSUCKII-,L T II=1, 1 WHEN INSTALLED IN URGE GROU%Nl.'S, II=11PIIII.IIAJS=I'l Jl- INSTALL USING TRIANGULAR SPACING SCALE ACCORDINGLY. i QUANTITIES 11=.11`1=CP-1I II= SEE PANT ISTONACCOMPANYING FIATS. llllllll'I Illy 11411IBi Illl IPROJECT'MANAGER: HM 1.11-1 AMENDED 1-1'—I PLAN DESIGNED: MF ROOTTREATMENT II II, NATIVE SOIL I'-'II DRAFTED: MF I. CONTAINER GROwr PUNTS(INCLUDES PUGS).RANT ROOT BINS MUST HOLD TOGETHER MEN THE PLANT BA CHECKED: MG REMOVED FROM THE POT,MEET THAT ASMALL AMOUNT OFLOOE SOIL MAY BE ON THE TOP OF TIE ROOTsAaL 24'ON-CENTER i • JOB NUMBER:2. PUNTS MUST NOT BE ROOT-BOUND;THEE MUST BE NO CBICLING ROOTS PESENTWAN,/PIANTBSBECTED • I. ROOTBALLS THAT HAVE CLACKED OR BROKEN WHEN REMOVED FROM THE CONTAIMR SHALL E REJECTED. E EMERGENT PLANTING DETAIL ABLE L I TUTS SHEET NUMBER e<„RYTnmwRN<mq 4 OF 5 gE z THE ABoer planed areas not dire ctly covered by me rrenseoe wig be theysua8yassessedandnotedastohow items In bold an be found above under Specifications and Definitions.- WATERSHEDother Piper's'Bluff Project Mitigation'Notes • • are mewing the performance standees. I.Replace each plant found dead in the Year 1 monitoring visits during the u COMPANYpwmmg(NI dormant lesson monitoring should eke place twice annually for Me years,During each mongering year there shag be a spring (October 15th to Mardi 1st). ' - Executive Summary and a late summer or fall visit First-year monitoring should commence In the fest summer or fah subsequent to 2.Follow the recommendations no g monitoring snotedInthespring visit 7505hN Street SouthIn./laden. 3. Generalweedmg for all planned armsThisPlanisformmgadngtemporaryImpacetocrudarrasandassociatedbuffersHaimnortheastportionof Kirkland WA 98033 the subject property due[o water lane construction.The proles area ls bated at 1166 HagWam Ave NE, The spring monitoring visit will record maintenance creeds such as plant replacement and weeding needs. a.At least twice-yeary,removebenedInvasive plants lasted by the Washington State Neeooy Weed Board Renton WA:King County(parcel Sony foreoeioldne on The.pardelisamently bring developed undere FdlevMg Me spring vhlt the Resonation epecial ten notify the owner and/or maintenance crews of as ClanA B,orCfrom the Ahmed area,Mare frequent weeding may be necessary based on p425.822.5242 ("415.817.8136 separate permh; per relegation planisoNy activities associated welt running the water lNeln the northeast necena')'early growing season maintenance.The second annual monitoring visit wig contain the bulk of the she • monitoring reports.Weeding should occur by hand,being careful to grub out roots.Mechanical Www,vvatershedco,com nrerdae propem, assessment and take lace In lnnum°ner oreary fail.The late-sseason fond moMoringvhh shag mew,such as acting ulmmers,should not be used as these on damage the stems Ofplotalled Science & De51gorecordandreporttheMowingInanannualreportsubmittedtotheCityofRentonplantings.Remove all competing weeds and weed roots from beneath each Installed pant and any desirable volunteer vegetation to a distance of 18 inches from the male plane stem. The devdopmem area will ph Creekcess the muddpoHowenewater ensWater DloOhrough doe 90) don along regulne Ave - 1.Genera/summary of rendspri ne MM. b.More frequent weeding may be necessary depending on weed conditions that develop after planNE,which will not affect Henry Creek orb buffer,However,Water District (District)has requbdd the• _2.Counts of live and dead trees and shrubs by Sped.In the planted areas In Year 1,SlgnlOant die-off should Installation.' applicant to run a water line'stub"from the development project to the eazt property boundary to allow for be reported by species and quantity In any monitoring year, a Do not weed the area near the pant bases With driest...mer(weed whackerAveed eater),Nervefuturemunicipalwateraccesstoparcelseastoftheproject3.Estimate of native aping tree and shrub cover using the kne-Intercept method along establahed twmecb pants are oasiy damaged or Idled,and weeds tasty recover after trimming.nted I from the weer fine cog be ten tithe ee of Invasive arm mpatn porary,but wed Involve clearing vegetation.excavating sod,and ins.hnng 4,Estimate ofInastre cover using the line-Intercept method along established tran:em In the planted area 4..Apply siowrdaagnnular tertlTaerto each lmnlledpWtannua0ymthe spd(byJurre l)ofYears .7.4 a sub-grade 8'water line and metal casing re a depth of between 3 and 5 feet through Honey Creek(a Cites 4 5.Photographic docronentnion from fed reference points In each planting area and S Z summ),an adjacent Category 2 wetland located on either side of the stream,and the aeodated standard buffer 5.Mulch the weeded are beneath eerie pace wish an IB loch diameter wood chip ring as nermwryto sired SO feet from the edge of the wetland(See Sheet 1 of 5.Proposed Impacts and MMgatlon). No 6.Intrusions hate dm planting areas,vandabem or other sedans that Impair the intended functions of the maintain a 4-Inch thick mulch ring and keep down weeds.4 ,Uj permanent,above-ground structures will be paced within the ethical area,or cddd area buffers planted areas. 6.Durinng dry periods,the applicant shag apply 2lndres of water throughout the planting area as needed by J J 7.Recommendations for maintenance or repair dare portion of the mitigation area. _ hand or by Instating an Fngatlon system,l Q Overall,the proposed temporary Impacts are as follows Z ZConstructionNotesandSequencing Contingencyi. Q W a Z Wetland/Stream Buffer-969 SF teNo spednatlom aforhensInboldn be found below under'Material Spedfiodons and Definitions.-Definitions.- IW I— Z d Wetland A-424 SF Note The Watershed Company425 822-5242 r- < Honey Gvck•113 SF pertannek or other persons qualified to evaluate I.The shall replace all or dying plants after season pest-instillation to 0 Zenvironmentalrestondonproledsshagmaidenaddevea100percentsurvivalrate. co TOTAL IMPACT AREA-IS06 SF 0I.All site prep radon,Including Invasive weed removal,weed control and sod preparation 2,The applicant shall be responsible for Installing addidorol pa asplants needed to meet the cover and diversity 1 2.Stream now deemed In-strum work Is anticipated to take plate during the ate summer when the standards Ileord above In Ale document. I 1 W W 3 Mitigation Approach stream bed h dry.However.the contractor shag have materials onband and be prepared to divert now ---- -- - --- — m Z around the work area should unandtlpated flows occur during the work.How bypass shall consist oft Q ; Mitigation sequencing was used be developing the following approach.Although the requirement to Install the temporary gravel-bag dam and sufficiently sized flexible pipe to capture and divert al stream flow around r waterline up to the east parcel ale prevent the applicant from avoiding all innate to ordeal arms in that the entire construction work area V' Z vicinity,the applicant has redesigned the proposed water lino to mein*.impacts.An original alignment would 3.Plan material lnpedon hove severely damaged the roots of three large native corder trees aerrentlygeovdng in the critical area buffer.or Plane material delivery pupectbn By adding two 45'bends in the line near the west edge of the buffer,the applicant will move the alignment south b.50%plant Installation lenpedon. by 10(emend cause less root damage from exetatbn The southern alignment takes advantage deans c 100%plant Installatio...Mon.atio...Mon. V aoverheadpowWines.In choosing this alignment,instillation of the water One v41 require no significant tree - City { Rentonremoval. General Work Sequence O a 0 0 = The plan will mitigate for the neuldng vegetation removal through enNetemene planting.After beallndon and ' I:An plan[instill ation h to take placengtduring dormant season(October arcOb15th-March lst),for best Z .42 bade fdhng,the plan proposes enhancement planng the entire cleared areawith a deem:mitt of mill trees armdeal. Planning Divisionthatwillnotinterferewishthepowerorwaterhues),native shrubs.andgroundeover need for thewetond 2.Prepare the wetland planing area by blending an equal proportion of compost wish the native,excavated d and streandwedand buffer conditions found at the she, soil In the top 121nd.. rm3. buffer planting a by top dressing with a 31nob layer of tempest incorporated ate the top 9 Goats aches I.Restore the Impacted area in the buffer and wetland to a naturally vegetated and dlvene plant community. 4.Prepare the nreambed.Strezmbed gravel as specified for this project shag consist of wed-graded rounded or Esabgsh native small meet,shubs,and jeondcaeervegetadon in areas specified on the pint(No . rock lndudlng fines,confonningdosely to the following Megredaeon bywelghc JUL tv ts 2JTPjlargetreeswedbeusedIntherevegeatlonareaesItIsentirelybeneathoverheadpowergnea) Inch 5% b.Monitor the perfomvunce of the lnsdled plan over five years or uned performance standards are met y to%Inch 30% e Maintain the insulted plan to achieve these goals within five years or umg performance standards are . '/,to 166inches•30% m 1%to3Inches . . . 30% Performance Standards3 to 5 inches.. 5% t7 /T5.Apply allow release FertIDxer(per manufactureh•ped8atbm)to the panting pit of each installed IE ©I "f/EDThestandardslinedbelowshagbeusedtojudgethesuccessoftheplanovertime. plant In the buffer. Il s V6.M d.the entire buffer planeng area with a uniform 4bxhdddr application ofwood cMp mulch,Pug 1,Plant Sunival and Coven mulch back a few inchesfrom pa tostemsto prevent damage to the trunk or Aohleve 100%survival of installed vegetation bjthe end of Year I.This standard can bd tot through pant establishment or through replanting as necessary achieve embers.the required mbers. Material Spe°Blutioen and Debnitions b.Milne at lean 60%cover ofnative trees and shrubs bytheend of Year 3. I. Cedar Grove Compost or vegeaNa coupes appcAchieveatkart80%cover of native trees and shrubs by the end ofYear5. Compose equMiut product 100% compost no resdable- o 2.Species diversity:Establish at hest I native tree spades.and S native shrub peeler,and one non quantities of sand.gavel.sawdust.or other non-organic materials. low-coverypedes by Year 5.Volunteer spode ray coot toward•this sasdied. 2.Fert aer.Slow release,granular fertilizer.Folow manufn uaeh trnuuawm for appOratlos Keep 7.Invasve cover.No more than l0%cover by kw,olve weed spedesmthe mitigation feradter In a weather-tight confiner while ondte..Noon that fertilizer is to be applied onlylnYearsTwo • .tigdon enhancement and Three and not lathe first year. of • any monitoring year, 7:Rasteretbn Spadaiht:Wazarthed Compmy[(425)822-SN3]personnel or other person quddied to a Monitoring Plan evaluate environmental restoration projects. 4.Wood chi This monitoring program Is designed to track the success of the mkgadon site overtime and to measure the - a:Arborielwnod chips or equivalent(dipped woody material)approximately Inch ndnMum to3 o1 degree to which it Is meeting the performance standards outlined elsewhere In Al,document. Inches In maximum dimension(not sawdust w coarse hog fuel).Mulch shall not contain appreciable pprepared by the Restoration Specialist prior totla, quantities of garbage,plank.meat sal.and dimensional lumber or construction/demdmon debutAwbulitplan,An as-buds Ian and report will be boglnNng of the monitoring period.The at•bulh plan Shan be amark-up of the planting pace Included N this b.Pacific Topsoil sells a suitable equivalent woodchlp mock caged!DOT Woodchlp Mulch'_at marry of A".7.: W see The eebulhrereport will document placement components from the their locations:Pacific Toped:(800j BB4-7645 ippoanydepartwesMplantantorother proposed plan a Do net trio that b not...Oral Wendy;a,it is ground constmedmaterialonmaterialthat comdns treated wood endedlaror trash. - g- fTransco..During the asbult lnspecren,the Restoration SpedaBst shamm all one 100-loot monitoring 1transenthatthroughbothbufferandwetlandMaintenancePlan onaw hire en.. 1 passe Ayprosdmate transact locution shall be marked on SHEETSIZE: the art plan.During each monitoring event,percent cover data shag be recorded along the established leiNntSCALE Reis •s ItrainedusingthelineInterceptmethod.. The site will be maintained for Me years following acceptance el the rebuilt conditions.None specifications for PROJECT MANAGER: HM 1IDESIGNED: MF 1 DRAFTED: MF— CHECKED: MG JOB NUMBER: C i 130720 @I SHEET NUMBER: eoorn.,a wma.aea.e.n 5 OF 5 €i 111E---- WATERS HED 750 Scan Street South Kirkland WA<OM 7 725 8225212 .25827013617 tershedco com PR OJECT SITE VICINITY MAPS ii PROJECT AREA 4:3 SHEET INDEX PARC.4,...L— 7 --- -,z , SHEET TULE o .......,,....---- 2111-510111t1 NEM MVO 2 5 410. 2.., ,.., 0,'.,:a s p52505500.2 0;7512579,1 1N I 1 El[15111.001.01T50.25 I PROPOSE 0 VOW,MO KlICATION f ' "._ ir.-'--' '._ ',:-' 4._ _- ' 3 FROPOSED PIAMING AND S-10.202121ED RAN PLANT.Nam OMR.S X.SPECIFIC-ATOM 1 t..gr crew o..• \' (..-- ....5 011110.0110N NOTES 7--,a.—-----r..„ _1.20TES 2) • ---....-1-..... j I IS Cql W < zu1 EN...EPS APRIL 10.1012 NAD IN 2 kw-LA.07mo SWAM 071.1.77/ato P7 .. 1 tak---.41.----04,4a.-...10,:,Z;-4 ,„...____,,,,,11.1, __, SMALL 104112.10 CONSULT.PIC 21Mi 6.i el, Nsfie,.-EgeFk tit, _Er._-1,.-it ,-V-,--- --,-- 2012 FOAM 5-ro.,..,...:. SLI yi EL E.c 3_Z 110-0,0 1..., I I I.1 A 8 1 f.„--,,,,, . ,_,--..„-pj,,,.,..,, P Itt S; ' N.: 11-71•0E 5401 tp) . D 0 fISi a0--- b8p- lo . 0 i, i,,‘,‘ ,, sk0,,. .s," 6 ' ,, , , a. es g Z2 A,. s• cr I a- z5.16D- 0,,. 4.'-- 403,,, ..., , , , ,ct , D- s n‘ s Y.. 442.,../.\.,.4 40/1171%77I a 1.A.an s,CM 54',IV/ a4,,,1 0 ito•- ..-... 1' 1:0L, .2,7P I•. '-' - ,- - ""1! I MUM ..... NM. 0- \ 6- \\6' ' 6,111•••010k 011014 00.1502 0* 0L -2. -\ 4W OCI„-,.:.),,,,.. 5/014 90 NO 1.-- S OrAft_l yr num vu ma.cal. • t ... RC MC, ft/0-Ap arac M.152150 2. k.v..., 2 a*: 6..0,,11 .I '`''' —— glaIII:r 1 1!II 17 ti Li- • I E. 11, 0,„ a g 5 t SHEET 5772. af.,, 0111C01.1.P1A-F-V4S0le0 if 01A 1 5 Ilaa 2 11.0 I 'WW1--' 1 p,a, SCALE 0/f201011.1.1' gf,PRojEcr MANAGER. HP1 i, 7; •,.. 110,1071 777'77 DESIGNED MF i S4.0. 220 0.0 C 11 CHECKED MG _ 1 10B NUMBER:s 1EXISTINGCONDITIONS30GO120I30720eeI1.--- --iii SHEET NUMBER.t"..." 27.77 I OF 5 g!r,) ...° 3 -`,..... ni 0 THE WATERSHED COMPANY 750 Shah Street South Kbidand WA9E1033' P 45.6225242 /425.827.8136 wWw.wacershedco.com Science & Design Z LEGEND Z Z Q lam w j FLOHONEYaEEK ND STANDARD WETLAND BUFFER UNE 5e-0' b. Q I- STANDARD STREAM BUFFERUNE:35•-0' . 1 O w COZW0, STANDARD BUILDING SETBACK UNE:Ire rJ 1-Q Li TEMPORARY WETLAND IMPACT:124 SF Em W Q Z - TEMPORARY MEAN RIPACT:MSSF '' W N Q Qv, w Y dz,i TEMPORARY WETLAND BUFFER IMPACT:%95F 1.1 6 3 _ U a z(MITIGATION W 0ATIONAPEA1,50T SF D O ORTUPBANCEAREA: CISTIMRANCEAPFA WATER MAN ALMS,TO AVOID M.OWATERMANFADSTDUGM Z wIS'4WOTN CLEARING NWT.flMNGTRENCMWID0I DAMAGE TON}NG TREE RDOTSTO STEEL GSM BENEATH THE TO BE RESTORED N DACE. TOTE RESTOT NPACE T EMAXPRIMEMEAT PO590LE CREEK WAND MN S'a. WE CNA WA MORE DETAIL a. i - =4,R I I rip i2' rii? i . •T r t RC1N i w. •/, ,.•. ems'• - vft. n//i //" •Alt, '' rr~ :..(i;1 FARO:ELis \\l:f<' • •.//,-.44..vi'1 ., 5i ' :i i tee. r' ti •, i- W ro eJ , #7/ C, C i/ -/ E/ i /i ,R.,F Ar N f d of *`V. T a rr1. a iF iC R`Cy o,i— M ••'n \.'-,•ate, =""-.` ° m".',(__-aN aN,_f,i^ .,e 'm a— Al. ` "B-3 1 J, n re oF,-on ' or,- i i.-:,,DAL., re b NA Nis,.or— K I P 4 1 1-11`_- \,1 i1 .'\ I , 1\Ts 2 " 4 F S• • r SMEETS: S;, 1 it',. \', } 4. t3•'\Oq@MI.MAN G 22•s H'. ,. N>^aa It 1'~__\._! 0• 1 Y Nam` ram 2:. •1 SWEA[CORDNQY S F'ems' i T: pp, 1 T a(V- !. I A f 1 1 1 ` PRO)ECFMANAGER: MM C" y 1 G 'I "i_ JreL.i<c..•' •.. N 1 DESIGNED: piDRAFTE C.)CHECKED: MG PROPOSED IMPACTS AND MITIGATION JOB NUMBER: o Ia 2a D' 130720 @ p SCALE:I"=ION-0"SHEET NUMBER: BOF 5 €}e„. . o_ rn GRAVEL SPECIFICATIONS-CREEK MITIGATION AREA PLANT SCHEDULE-BUFFER MITIGATION AREA PLANT SCHEDULE-WETLAND MITIGATION AREA J E gt,7PRSIYEDSTRLAMEDGRAVEL•ALLSHALL CONSIWELL-GRADEDFWELL-GRADED ROUNDED COMPANY A.\},\\ ROCKINONAV GFWFS.CONff0AMING OOSFIYTO THE FOLLOWING LIE gixSCNnHCICOMMONNAMESTOL SHRUHSIC/COMMON NAME 1.GMDAnONBYWE/GI7; SMALL TREES-ALL TREES TO BE HEALTHY&WELL BRANCHED. SHRUBS-ALL SHRUBS TO BEHEAL]HY.FULL&VIGOROUS 01-• AURAL'S% ACERCIRCOVATUM 3 LONICFRA NVOWCRATA 8 S:w%Ptch 30%VINE MAPLE BLACKTV9NEERRY 7KiRthR Street 033 Y.mluh°hes 30% KIrldand WA 98033 I SSm S Inches 30% RLSBLASPECTABILLS 111CORYLUSCORNUTA3 y/35.B325LA3 f425.827.0176 3 S°56dxP 5% O N4STERNHSHRL SMGENTS. Cf AL YmwW.WRtershedme0m SN ESTE• ALL A7-El. i0 BEHFALTNI•.fllil6VIGOROUS FAALMONHERALL TO BE NFAlTHY6 WELL ROOTED OEPIFRIACERAOFORMS B CARD(OBNUPTA AT YA•O.C.SPACING CICnce & Design OSOBERMY SLOUGH SEDGE ROSANUTKANA 10 RSUL.MOEC TPBW NOOTKA AD S 7 SAIMONBERRY O STMPIIORIGNOOSALBUS lR Z SNOYVBERILY 5 0• PP...HAIS/GROUNOCOYER-ALL TORE NEALTM•6VIGOROUS a J POLYSTICHUM MUNTNM 0 Q SWORD FERN 70 Y-0.O .SPAH00 Z PPIANING AREA IN TNROUGHOUT LEE W Z CLUSTERS OF NO LESS L E O tD O 0THANTHREEANDNO HORETHANNVE OF g J Z ATIYNUMFILEC.FEMINA TIESAMESPECIES 0 W { yl Q11LADYFERN19SEEABOVE1iiu m tou Z 3 LLPREPARETOPSE3ILWO0FS01LASPETOPFSIPFAMBLOTOVOWING U) Y Q Z SPFC°BEINMIIGATION NOSES. uEGRADE AµMrMFORcaAw. W SPECIMMIONS. la d 3 ; LU 0 v1 ` pW, d cyCa0 z Nw+u+ILE DIrruRavxL rD l y. L .J ° 7 f1 O Y EItETWGTRLL RDDn l l 7• Fi W e4 AI 10 BLWKET uIa ENSIM I L V "W y - W BUFFERP4MINGAREA r-1T-- ii• NLUNG BACRMULOIfAOM D is, TW \ W W W. W \ STFML SEE MSNGAnON NOTES Pi yam"3 t.. ., m er • fe.)..Vip,Oc'- - 7 r' - 7111w_lwA • . 1,0,,Aqmirioo 0 Aiiik ,_ 7_ - 1_.' litat*. VFAIlk Aik- VILIS late AN y 14144--er4- NI\ 1°P.40f=0_, t` L',„......,.. 1„:„...).... s- • a ovacro Tilf..--4, 0*-1.4 4i Itiv0411,L 0 O - , Of+_- OR 1----o O0.--^^ ,,, OP ,),_. -0,,._____,,, ` W W W W \ `Y • 0= OD 0' O OP—•- O OR--OR I_OIL m 0_ SHEET SIZE: f,OL '.\M- `Q0\'^' '' M OP OP p\p`- .., W O(i`1_ .... .- .. W OPW\3 MM fn•' OPATML PUN BLYa W. .' l-C;i r 4. W W W W •Y VIP SOLLEACCORONGLY, j l•.•\ c w \ µ' 'I' PROJECT MANAGER: HPnu 9' r\".l'\ a"\W •B V: W\ Jr W CRAFTED: MF- 1 1 CHECKED: MG JOB NUMBER C} r, PROPOSED PLANTING AND STREAM BED PLAN 0 E ID ZO a ID. II V' SCALE:I°=SI-O° SHEET NUMBER: V a _O O w rn PLANT INSTALLATION SPECIFICATIONS PLANTING NOTES THE NOTE.THESESPEOFICATIONS ARE A LEGALLVENgNG mow., I. Nada,.plant Heathen Mel occur brewenSgnmrorlSN and December 15th during frou{momopda WATERSII ED for bast soya&. COMPANY GENERAL NOTES 1 Remove any and all Invasive weeds and Neer roots from the W targeted QUNRYASSIPANCE Include Hmalaym blackberry,E sh holy,English isy,SmtYboom,area.En5shlaurel, I. PUNTS WALL MEETOREXCEED THE SPLCifKATONOOFfEDERAI STATE AND LOCAL LAWSREQUING Yellow Flaght,and moralgglory. 750 Sixth Street South INSPECTION FORRANTDSESEAN°INSECT court. 3. Locate a0 matting hider wkin tha llml5 of work.The canvumrbresponaiNo for any mew damage asa Kirkland WA 98033 1. PLANTS SMALL BE HEALTHY,VIGOROUS.ANDVSWUMPOIUED,WITH WELL OMSLOPM,,POROUS ROOT SWUM EPEE result o(tlH WdFapa construction. MONDE.ERNOIES ORROOTS PLANTS SKULL BE FREE PROM DAMAGE CAUSED BY TEMPERATURE DOWSES. 4. reoWnaaymm lab No P25.B32534 (125)327.8136 IACRO0EXCED OF MODTURB.INSECTS.DISEASE.000000HANKAL MAP.MANES IN LEAF SHALLBE mat I planting www.watershedco.comANDOfGOODCOL00.PUNTS LOLL BEWOIEWTEO TO THE OUTDOOR ENVIRONMENTAL S. Layout plant Outetel per plan ler Inspection by the resteratlon SpedaksL Plant subsltWons MI NOT be watershedco,eom CONDITIONS INTOWMICH 00E ./ BE PLANTEDueuNi0EDOFFI hewedous.pot the approval of the rNlaradon Redd.Science & Design 1. TREES WITH DAMAGED.CROONED.MULTIPLE ORBROKEN LEADERS WILL BE REIECIED.WOODY PLANTSVTN g AEMSIONS OP THE BMX OR wNSWD WILL OE WECTEO. 6. haul plants per plandng d4y50 See thb theetfor Naming deeds and maRllamn apBdBmdmi7. Watt each plant Nmoeughly to olr peckers DEENDIONS B. noel a 1'depth, wood-clip layer throughout entire buffer planting arm eutdde of OHWM.nark I. PLANTSPIANT eDBALS.PWAS AND DANTINW,TELS SMALL EXCLUDE ANY MP PLANT MATED.USED ON T PROJECT TO INCLUDES BUT IS NOT SWIM TO CONTANEAGPOWTE BBB ORRARROOe PUNTS.AYE 9, NTEE temporary Veva=system capable of delivering Y of wattle per week m the MNre planted areaTAXESANDFASCNH(WATTLES);TOURS,CONK,BUSS,ETC:SPRGS R0GSAND WEBS 1 COXTCONTAINER GROWN.CO00W.RUWN PUNTS AXE THOSENWHOSEROOIOLS ARE ENCLOSED NA POT OR CIAO INTPONTWIXCMUTPT GREW.The landscape m,..sun loll maintain all plant material umd fuel6apeNon and approval by the Owner or oM represented._AB eand workmanship shall be guaranteed Far ate year Waning final owner waslmm ZI. ITEISTCONIRACTORS RESPON9BILITYTOOBT,W SPECIFIED MATERIALS IN ADVANCEIF SPECIAL GROWING. MAROTEXG OROTNFAANONGFMFNTS MUST RE NNOE NOROERTO SUPPLY SPEWED MATERIALS. J 1 SUBSTITUTION OFMAIO MATED.NOT OND.PROjECT UST WILL NOT PEPEWJPEO UNLESS AUWDRRIDN PLANTING DETAILSWRITINGSTINE[NDSWEMOPTECTICONSULTANT. B. D MOOR IS SUBMITTED THATANY RANT MATETW E000 ED IS NOT OBTAINABLE.A PROPOSAL WILL BE Z I.:: Q CONSIDERED FOR USE OF DSC NEAREST EQUIVALENT SM ORALTFRATNA SPECIE.WIEN CORRESPONDB.G NOTFY ADJUSTMENT OP CONTRACT MICE. I.PLANTING NTSMALL NOT BELE...MAN MTWES 0 wA. SUCH MWO VAL BE SUBSTANTIATEDTED AND SUBM TEO WRITING RGTOTIECONsULTANTATIZST DATUM. T1C.01H ALU.0E11.ROOT 9D TO START OF WOW UNDERTNS SECTION 1 LOOSENSOMANO BOTTOMS OP PLANTING PIT S. L SOM PLANTING PIT AFTER PUNTING 436i-a O pp INSPECTIONPLANTS SIWL BE AMERTOPEPECl10N ANDARAOVA BTDIE CONSULTANT FORCONFOR4ANCE TO REMOVE PROM POT.ROUCNLP ROOT BAIL BEFORE 1eL. p SPEC6KATONS,OTHER ATTNE Or DELMAN OIN3iTEOPATSHEGROWER...LSE .APPROVAL OF PLANT INSTALLING UNTANGLE..$ l4TEN ORONO 1 O P MATENALSAT ANT TIME SNN NOT IMPAIR weTRINF QUDR RIGHT OF NSPECEONANDREIECDWJ DUN. ROOTS-IPUNE 6 NECDIART.IP rim. Inl O- -. QPROGRESSOPTICWONGEXCEP10NALLYROOT.OUND,DO NOT PLANTA. PLANTS1 PRS INSPECTED ON SITE MID REJECTED FOR NOTMEETNG SPECIFICATIONS M OE REMOVED IMMEDIATELYMEDIATELY RETURN TO NURSERY FOR AN I.CCEPTM EALEALTNATNE MONATE OR RED-TAGGED AND PFMOVEO AS SOON AS POSSE'S M W 0 W l TIE CONSULTANT MAY ELECT TO INSPECT RT MATEPALS AT THE PUCE OP CROW.APERINSPECQ ANDD Yd Z ACCEPTANCE.THE CONSULTANT MAY REQUIRE TEE p6PCCTD PUNTS RFWELEDAID RESERVED EORPROACT.LAM HOLD BAC.NDLON FROM Q IDWESTINDONOFTHESERAMSMTHOTNMERIDINS.WEN GFTHCSAME sPEODA OSQE B MEIN/STD. Ce UNACCFPTAOLE 1'MN M.WATER RAW n W'-MEASUREMENTS Q OOFPIMPSfHBMGRADEgait/I. PUNTS9Wt CONfoRM TO SIZES SPECIFIED URESS=MOTIONS ME MADE ASOUNNED IN DC CONTRACT. 1 HEIGHT AND SPREAD DIMENSIONS PEOFEO WERTO MAN BOOT OP PUNT ANC,NOTEMNOIO0.ROOTTPM li-' W D U TP.RAM DDEPAOMSIWLPE MFANPEOWHEN TERBWNOESORROOTAR NTI6RNON 4.MOWN I 1 1. WHETEARWGEO;SI.6 OVEN.NO DANT SMALL BE LEss TIDNTHE M EM.SPFAID ATLEM,MR OP THE U d a L9 RAMS SH,NL BE AS URGE ATE MnWI OF THE SIZE RANGE(EXAMPLE:IPTICS PANCES INTO IC.Ai IMMOVE DEERS LEAST SON.OP PUNT MUST PE Is'TALL) I HASTE Sal DFNMMUPSOILAO1ND PUNT i r 0 Q O Y PROPOSED RANT SOURCES Z W 1' PROVIDEDEM I. MORN AS MT MAFTERAWAPDGfIHECOPACT SUMATERIALSTACOMPLETE AIR OF RANT MATERIALS PROPOSED TO BE PROVIDED OOMTMN N THECONFORMANCEWIEE REQURFMFNE IWEDDED. CLUDEIHENMETAeO ADDRESSES OPAL.GPOWEASAND NURSERIES HS A lL O NR TREE&&SSHRUB PLANTING DETAIL FROM/CT PPUNT MAAITTEERN3 LIST-SUBMIT 0000 SMETATIONTOCONSULTANT AT LEAST 10 OATS PDORTOETMTOPWORR d T.sEcTKN TKO PLAT MATFASIEOFSE RUN ORXAD.ARRANGE PROCEDURE FORTE PECTION OF PUNT MATERIAL WITH CONSULTANT AT TIME OF SUMMON.NOTES 1. IUVE CORES OF VENDORS ORGROwER0 NVOICESOR PAOIEG SUPS PDX AIL PANTE ON SITE DURING 7U TMUNOCWERAT SPECIFIED DISTANCE ON-CU./MI(0 C) PACKINGINSTALUTION.WOOD OR SUP OUSD I PECFLIST STSCENTIN NAMEQUURTIT,AND OATS USINGNG TPU MNGULPACWG,TYP. DGENETICTEREDNANDGENEORION IP UT INPONIATKXN WAS FPENOUSLT REOUESTFD} 1 LOOSE LM SIDPS AND BOTTOM OF PLANTING PR AND REMOVE DEBRIS 000MSY.HAN00NG,BSTOMG[ 3.LOOSEN ROOIBODMNTS BEFORE INSTALLING N.SOAK PET BEFORE AND AFTER INSTALLING PUNT NOTIFICATIONCONTMCTOR MUST NOTIFY CONLJLTAM00a1OUASOR MORE NADVANCEOf OPINSRESSOIHAT CONSULTANT MAYARANGEFORINSMCTSN i PLANT MATERIALS N,Ai JINNI_ P SPECIFIED MULCH:HOLD ml! C I4',.,i:E_ BACK MULCH FROMSTEMS I. TRANSPORTAEDN•DURINGSSOHING RANTS SHALL SE PACKED TOPROWUE PROTECTION AGANSTCIHATE s....if`•`.;A'i:n N'_ _ _'_'!:.%. Jl•. EXTREMES BREAKAGE AND OPTING.PRONNVENIMTION AND PREVENTION OF DAMAGE TO BARK 6RANOft 7 j/I' ICII,`:,,,,eia ' 10., AND ROOT SYSTEMS MUST BE ENSURED 1 SCHEWIINGAD STORAGE•RANT SHALL BE MINER.,AS CLOSE TO DAN161GAS POSSIBLE.RANTS N 5l t JJ i t` 1 SOIL AMENDMENTS STORAGE MUtTRE PROTECTED AGVr6TANT COMMON TEAT DElVRCNTATO Dem CONTINUED IEA131.1 L/ r v T_ AS SPECIE/ED AND VIGOR 1GGKKK""///!ll/// _.. R. yZT 1 IONDxM0•RAROIL ORIS9.NLNOT BE MOLES/DTTE TRUNK.UM0f.0R MARGE OUT ONLYIYIME. 2CONTMFF0.BALL.BOX OR OTHER PPDTENT M STRUCTURE.EXCEPT BAFEAOOT P V INf S SIIAL BE KEPT N BUNDLES UNTIL PUNEING.WD THEN MWOLED CAREHILLYBYTIIE TRIrmORSTEM 11=11=11 1=R=1L 1I=G N. LABELS-PLANTSCONTAINER DURABLE LEGIBLE LABELS STATING CORRECTSC0NTFIC NAMEANID0 INN Iti PERCENT OP CONTAINER GROAN RANTS IN INOMOULL PoTSHALL BE LABEL..PUNTS SUMMED N FEAR PACTS.BORES.BAD.MOUNDED DULL NAVE ONE LABELPFA000P. a GROUNDCOVER&PERENNIAL PLANTING DETAIL WAPMNTY O SOS Z KSF D FILAR WARRANTY L$x. ANIS MST RE GUA W.NTEFD TO REALM TO SQNF6K NAME AND SPECIFEDWd.AO TO BE IEALTR AND WARE OF VIGOROUS GROWTH n o§ PFPFMEREPLACEMENTREPLACEMENT NOTES: I. PLANTS NOT FOND MEETING ALL OF TN!RQUIRED CONDITIONS MUST OE REMOVED PROM L0BMO REPLACE) I.MAKE VAESUITABLEMOLE A ROCK BAR T IMMEDMTLYATTHE CONSULTANT DISLPFTION. 1 RANTS NOT SURVNWGAFTFROME YEAR TO BE REMaDATTHE CONIMCTORS POISE.OR EOM.PLANTING T TOOL Oa MINTHATPIL 1.,II1 11, _` II II _LSRn I lu 1 INSTALL PLUG DIRECTLY INTO SOIL GENERAL IIRLL.I ri l I II ail-0 f0=1 3 I CDANISONDITIONS MIMED'GROWN INACCOROAMFWPHGOOO HORTICULTURAL PRACTICES tommcuro.. P-1Bj 1B-11 I-IG%e'-il.- SHEET SIZE: i, S'`JLONORgM69MlMT0 0.NMOIIFSEVFFF MN TIME OP THE PNOCULTWEE II-1 )11 TI7 '-P OPP..PUN.1TLN'. S V S RANTS WEL BE TRUE TOO.. VARIETY ORSUBPEOFS NO CULTNARS ORNAED VARETESSW11Bf r( r' r.(V`SIN 1 I`ICE WF¢N PISTALLEDW URGE GROUPINGS, sC EACCOPONGLY. l Q, ail USED UNLESS SPECNEDASVCH. Or 11 ri1 I ice-1!I(I (\\//WSTALL USINGTRANtNWSSPAONc L: ANmiT EMI eWUJ I ll " PROJECT MANAGER: HMO UsEEPIANIOMACCINVANrpwRANIIP=IFI RII LII AMENDED d=1111 11i PLAN T. `// I 0 DESIGNED: MF DRAFTED: MF- e,ROOTTRUTMENr IE Ill NATIVE SOTS F.I DRAFTED: MG L COMANER GROWNRAIKINCLUOES PLUGS).RANT ROOT BALLS MUST HOLD 0EIIIOE.WHEN THE MANTISF pousull FROy THE JET,IXCEPTTNTASHALLacc 0000 ODSESOLLNur BE ONTPETOvofiINERDoieAu. I ICON-CENTER I JOB NUMBER: L PRAMS1AT16OT BE ROOTBOSND,THG E MUST BE NOORDFT01I 4CONEIRNMIYRANTICPECTED. C VeYl.'1 ROO CRACKED OR BROKEN WHEN REMOVED FROM THE COMAPCRSHALL BE RDECTEO. I307I0 tYlkp i3C) , BAD TNAn O EMERGENT PLANTING DETAIL SHEET NUMBER: F tl NTg 4 OF 5 0Fri.; T 1 11 D1nN.Trw.:w.,G,a Cr CD `ate NOISING OI\MMNTH NIC11‘136 giO)algO Z @ya " ? 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I1 }it III'I ii liii lift ii 111111 U f i 1v 1 i 4 I I a r t i 1 I IV! tt ei gI a' 3 e a I i g a it Eg a gg s o 6 is F g R f ifg N_— R. tjjt llftiijqip1iHiili 16eRrlia . i q. g9 U FK 1 I ixi Ind l 11 i I '4, 3g g i s;<is as igsg MOO; it lg3 7 5 i B g a 1q w 2rl , SUMTsToLL58REV{NONS PIPER'S BLUFF z n n" " o. o*[ uxn8na+ a c ElE,,P Rh WETLAND&CREEK RESTORATION PLANa v t" I$ nn _ 0 9 PREPARED FOR:WESTPAC DEVELOPMENT,LLC G ' iDim 9' -m o r. i 1166 HOQUWM AVE NE,RENTON WA n w 'r ?H 3S3srr3 KING COUNTY,WA 98006 3 r u {— Department of Communiti f of, ` Economic Development Deferral Permit: DEF15000922 IVR Number: 15000922 Permit Information Permit Name: PIPER'S BLUFF FINAL PLAT Address/Location: 1178 HOQUTAM'AVE NE Parcel Number: 1023059312 Application Date: 03/02/2015 Permit Type: Deferral Issue Date: 03/04/2015 Permit Work Class: Deferral Expiration Date: 03/03/2016 Inspector: Pat Miller 206-794-6162 Plan Reviewer: Jan Illian 425-430-7216 Description: DEFERRAL PERMIT.FOR THE FINAL LIFT OF;ASPHALT ON SITE FOR PIPERS BLUFF• Contacts f Billing Type Name r Address Phone X Applicant Kim Hall L 846 108th Ave NE B:(425)646-4421 Conner Homes at Piper's Bluff, LLC Bellevue,WA 98004 Contractor CHARLIE CONNER 846 108th Ave NE,#200 B:(425)646-4433 CHG SF LLC dba CONNER HOMES AT'PIPER'S BLUFF LLC Bellevue,WA 98004 Construction Contractor:CONNEHP870I B Business License Number: BL.036813 Owner Aron Golden 846 108th Ave NE, 200 B:,(425)646-4411 Conner Homes Bellevue,WA 98004 Deferred Items Second lift of Asphault:$26,966.08, Bond Due at 150%of Deferired Items:$40,449.12 General Conditions&Signature Permission is hereby given•`for the work described on this permit according to the conditions hereon and according to the approved plans and specifications pertaining thereto,subject to compliance with the Ordinance of the City of Renton. This permit and plans must be posted at the job site at all times. I hereby certify that no work is to be done except as described above and in approved plans,and that work is to conform to Renton codes and ordinances. Call(425)430-7203 or go to:www.MyBuildingPermit.com one working day in advance to schedule an inspections and for ANY work in the Right of Way. l Call 8 1 1 to locate underground utilities at least two full business days prior to any excavation . In accordance.with RCW 19.122.033(4)the permit holder is required to contact (Williams Northwest Pipelinelat 425.868.1010) Olympic Pipeline at 206.510.0575)(Puget Sound Energy at 425.457.5816)to request a consultation with the transmission pipeline company prior to performing any construction or excavation activities. This requirement to consult with the transmission pipeline company is in addition to the requirement to Call before You Dig as required in RCW 19.122. f Sign re) Date) ' THIS PERMIT AND PLANS MUST BE POSTED AT THE JOB SITE AT ALL TIMES Page 1 of 1 I \ King County Water District No. 90 15606 South East 128th Street dir,.." Renton,Washington 98059-4540 Pilo*,425-255-9600 Fax:425-277-4128 Tuesday, September 2,2013. City of Renton Jan Illian,Karen Kittrick Development Services 1055 South Grady Way Renton,WA 98055 RE: Substantial Completion of Wateij Mains and Hydrants and Fire Flow—Piper's Bluff 1166 Hoquiam Ave SE Renton WA 98059 This letter is to inform you that King County Water District NO. 90 has reviewed the Piper's Bluff Water System and found that the watermains and all appurtenances are installed, operational and installed o.the-Districtspecifications. The water system can supply over 1000,gpxn for duration of more than two hours If you have any questions on this matter,please give me a call. Sincerely, 1 Joshua Deraitus Operations Manager,KCWD 90 cc: John Peterson,Conner Homes Adrain Waalk,JR Hayes RE VP DEC 0 3 2014 Q PLANT l' Jig%;51ON kewd90.local\data\CompanyData\Engineering\Developer•Extensions\Substantial Completiori\Pipers Bluff Substantial Completion 9- 2-14.doc Denis Law n City ors ti Y o Mayor e e:' `.. .ro'.;..,. w'x. .ra vi"':r'...% •a 2j;d.jts..—Y:r' e. V } Community and Economic Development Department August 29, 2014 C.E."Chip"Vincent,Administrator Brad Adkins 5210 NE 12th St Renton, WA 98059 SUBJECT: PIPER'S BLUFF CRITICAL AREA VARIANCE COMMENT RESPONSE LETTER LUA13-001568,VAR Dear Mr. Adkins: Thank you for your additional comments related to the Piper's Bluff Critical Area Variance; dated August 19, 2104 wherein you raised concerns regarding the proposed project.Your letter has been included in the official project file and the reviewing official considered your concerns and requests as part of their review. Please note the City removed the on hold status on August 6, 2014,following an independent secondary review of the applicant's wetland analysis and effectiveness of the proposed mitigation to determine the extent,function and value of the wetland/stream habitat and potential for impacts and mitigation. The City issued an administrative critical areas variance report and decision on August 28, 2014.A copy of the decision is available and may be obtained from the Renton City Clerk's office, Renton City Hall 1 7th Floor, 1055 South Grady Way, Renton,WA 98057. They may also be reached at (425)430-6510. If you have any further questions please feel free to contact me by telephone at (425) 430-7289 or email at cclose@rentonwa.gov.Thank you. Sincerely, Clark H. Close Associate Planner Renton City Hall 11055 South Grady Way•Renton,Washington 98057 •rentonwa.gov f fi Sewall Wetland Consulting, Inc. a "' PO Box 880 Phone 253-859-0515 Fall City,WA 98024 City of Renton Planning Division OCT 2 7 LUI October 22, 2014 John Peterson RECEIVED Conner Homes 846 108th Ave NE Bellevue,WA 98004 Re: Piper's Bluff—Mitigation Installation Sign off SWC Job#12-135 City of Renton File LUA13-001568 Dear John, This letter is to inform you that I have reviewed the Pipers Bluff wetland/stream mitigation site. The mitigation project has been installed to plan as depicted on the two 2) approved mitigation plans (Plat of Pipers Bluff Supplemental Critical Area Restoration Plan—Sewall Wetland Consulting, Inc. dated 8/21/14 &Pipers.BltBluff Wetland& Creek Restoration Plan -The Watershed Company, dated 7/31/13). This will start the 5 year monitoring period. The first year requires four monitoring visits and reports. The first visit will be in January of 2015. If you have any questions or need any additional information please contact me at(253) 859-0515 or by email at esewall@sewallwc.com. S Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetland Ecologist PWS'#212 DEPARTMENT OF COMMUNITY clh'°f AND ECONOMIC DEVELOPMENT t s PLANNING DIVISION CERTIFICATE OF EXEMPTION FROM CRITICAL AREAS REGULATIONS EVALUATION FORM & DECISION DATE OF PERMIT ISSUANCE: September 23, 2014 LAND USE ACTION FILE NO.: LUA13-001568 PROJECT NAME: Pipers Bluff Critical Areas Exemption PROJECT MANAGER:Clark H. Close,Associate Planner OWNER/APPLICANT:Conner Homes at Pipers Bluff, LLC Attn: Rob Risinger 846 108th Ave NE, Suite 200 Bellevue, WA 98004 PROJECT LOCATION: Parcel No. 0323059054 CRITICAL AREA:Class IV Stream Buffer and Category 2 Wetland PROPOSAL DESCRIPTION: Conner Homes is requesting a Critical Areas Exemption in order to perform emergency maintenance and removal of 30 to 40 cubic yards of sediment that accumulated in Honey Creek downstream of the Pipers Bluff Plat (Exhibit 1).The sediment that has accumulated downstream! is a direct result of their vault facility failure which subsequently released substantial amounts of fine sediment from Pipers Bluff stormwater vault into the wetland, stream system and their buffers. Such adverse impacts to the downstream pond warrant mitigation. Site work includes placing sand bags on each side of the pond, pump out standing water from the pond down stream, removing sediment with a mini excavator, hauling sediment with small skid steers from the pond to loader position on NE 12th Avenue.The access route/existing trail will be maintained and repaired using hog fuel and jute matting. The work is anticipated to begin in September 2014 and be complete by October 14, 2014. On September 15, 2014 Washington State Department of Fish and Wildlife issued an emergency HPA permit to remove the sediment from Honey Creek downstream of the Pipers Bluff outfall (Exhibit 2). CRITICAL AREA: Honey Creek EXEMPTION JUSTIFICATION: RMC 4-3-050C.5.g.ii. Maintenance and Repair—Any Existing Public or Private Use:Normal and routine maintenance and repair of any existing City of Renton Department of Con,..,,airy&Economic Development Certificate of LA.,,ption from Critical Areas Regulations Pipers Bluff Sediment Removal from Honey Creek Critical Areas Exemption LUA13-001568 September 23,2014 Page 2 of 3 public or private uses and facilities where no alteration of the critical area and required buffer or additional fill materials will be placed. The use of heavy construction equipment shall be limited to utilities and public agencies that require this type of equipment for normal and routine maintenance and repair of existing utility or public structures and rights-of-way. In every case, critical area and required buffer impacts shall be minimized and disturbed areas shall be restored during and immediately after the use of construction equipment. RMC 4-3-050C.5.h.i. Emergency Activities:Emergency activities are those which are undertaken to correct emergencies that threaten the public health, safety and welfare pursuant to the criteria in subsection C9b of this Section. An emergency means that an action must be undertaken immediately or within a time frame too short to allow full compliance with this Section,to avoid an immediate threat to public health or safety, to prevent an imminent danger to public or private property, or to prevent an imminent threat of serious environmental degradation. FINDINGS: -The proposed development is consistent with the following findings pursuant to RMC section 4-3-050C.5: 1. The activity is not prohibited by this or any other chapter of the RMC or state or federal law or regulation. 2. The activity will be conducted using best management practices as specified by industry standards or applicable Federal agencies or scientific principles if submitted plans are followed and the conditions of approval of this exemption aresmet. 3. Impacts will be minimized and disturbed areas will be immediately restored, if submitted plans are followed and the conditions of approval of this exemption are met. 4. Where vehicle disturbance occurs during construction or other activities in accordance with this exemption,the site will be maintained and repaired with hog fuel and jute matting-as required as a condition of approval for this exemption. 5. No significant trees will be removed as part of the silt removal from the pond. DECISION: An exemption from,the critical areas regulations is approved for the sediment removal activies, listed above, within the pond. SIGNATURE: 1461/11,1 'el I? 'I zoiti Jennifer Henning, Planning Director Date Department of Community& Economic Development APPEALS: An appeal of this administrative land use decision must be filed in writing together with the required fee to the City of Renton Hearing Examiner, City of Renton, 1055 South City of Renton Department of Co .....:1ity&Economic Development Certificate of E b,.,ption from Critical Areas Regulations Pipers Bluff Sediment Removal from Honey Creek Critical Areas Exemption LUA13-001568 September 23,2014 Page 3 of 3 Grady Way, Renton,WA 98057, on or before 5:00 p.m., on October 07, 2014. RMC 4-8-110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425)430-6510. RECONSIDERATION: Within 14 days of the decision date, any party may request that the decision be reopened by the approlIal body. The approval body may modify his decision if material evidence not readily discoi/erable 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. EXPIRATION: One (1) year from the date of decision (date signed). kghttp:,'.'gismaps.kingcounty.gov/parcelviewer2l P- dII!M10Day Weather Forecast for Re,..'kgKingCounty Parcel Viewer... >I1 1 j.. '. i National and Local Weath.,. M. Suggested Sites'- j Find a Member P Pandora Radio-Listen to.,. ; Seattle News,Weather,Sp... Ell gmail Email from Google Q Google E espn The Worldwide Lead... ]Web Slice Gallery t., ar, ':•:- ,,j4.,,,. tri :5, - ;:, ice`..>,,.+ d,n 1. 7_ < t _• !ear('h KlrtgCoilIIty.t:C.'vKimCoup - 4 L r 2 1r . i.,.f ' + ,r> r" Home How do 1... Services'- About King County v. Departments 1 r Parcel Viewer 2.0 _ ri Z KCGIS Center You're in:KCGIS Center a Property Research:,Parcel Viewer 2.0 NI by: Address I, Search ` Find Intersection : Zoom to ' Advanced tools • : Basemaps I so , Print 1 • '? . CO 7 c,. cn c 1 ,1 ti10930 LI laa2I o: s 6c1 W 5004 1,1 5010 i1353 r: 'o LA agg, P= P^mP 0 0323059119 1`1-0St i". ian cope _ Places S ea I°Cn S 025059056 j 3306 Puvnr =P G,v - Pomp t,,,, e„P., s 11 e",`SAi'^ oft wn BAG n i i sA-No• t - m _._ .. 5 r5311Pe o bQ 40 Ge3S i i . 0323059057E Sii`i- (3o-t10 5) ..n o,4 a...cQ 1 --- - --- 3- . . - .. - - .. 122i 228 0,, bo dG. 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R " -' .,:ti . , r=r 9/182014 Washington Department of Fish&Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 nasairgz;Depc.-. t Olympia,WA 98504-3234 FISII WILDLIFE 360)902-2200 Issued Date: September 15, 2014 Permit Number: 2014-4-204+01 Project End Date: October 14, 2014 FPA/Public Notice Number: N/A Application ID: 1594 PERMITTEE AUTHORIZED AGENT OR CONTRACTOR Conner Homes 1ATTENTION: Rob Risinger 1846 108th Ave NE, Suite 200 Bellevue, WA 98004 Project Name: Pipers Bluff Storm Damage Cleanup Project Description: Remove an accumulation of sediment from Honey Creek downstream of the Pipers Bluff outfall,where there was a slope failure at the construction site last winter. PROVISIONS 1.TIMING LIMITATIONS:The project may begin immediately and shall be completed by October14, 2014. 2. Work shall be accomplished per the discussion with the Washington Department of Fish and Wildlife (WDFW) Area Habitat Biologist (AHB) listed below, which is reflected in the following provisions. 3. Sediment removal shall occur in the dry or in isolation from the flow by the installation of a bypass flume or culvert, or by pumping the flow around the work area. Provisions 4-9 apply if the watercourse is flowing at the time channel maintenance occurs: 4. A temporary bypass to divert flow around the work area shall be in place prior to initiation of other work in the wetted perimeter. 5. A sandbag revetment or similar device shall be installed at the bypass inlet to divert the entire flow through the bypass. 6. A sandbag revetment or similar device shall be installed at the downstream end of the bypass to prevent backwater from entering the work area. 7. The bypass shall be of sufficient size to pass all flows and debris for the duration of the project. 8. Prior to releasing the water flow to the project area, all bank protection or armoring shall be completed. 9. Upon completion of the project, all material used in the temporary bypass shall be removed from the site and the site returned to pre-project or improved conditions. 10. Disturbance of the streambed and banks land their associated vegetation shall be limited to that necessary to perform the project. Affected streambed and bank areas shall be restored to pre-project or improved habitat configuration. Prior to December 31 of the year of sediment removal, the disturbed areas of woody vegetation shall be revegetated with native or other woody species approved by the WDFW AHB listed below. Vegetative cuttings shall be planted at a maximum interval of three-4-^*-' ^^+orr__pinnrinrtc-chill he_maintained as necessary for three years to ensure 80 percent or greater survival! Ipproved by the AHB. EXHIBIT 2 Page 1 of 5 Washington Department of Fish&Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 Wes iu Depo.K..s:o Olympia,WA 98504-3234 FISIL,e WILDLIFE 360)902-2200 Issued Date: September 15, 2014 Permit Number: 2014-4-204+01 Project End Date: October 14, 2014 FPA/Public Notice Number: N/A Application ID: 1594 11. If at any time, as a result of project activities,fish are observed in distress, a fish kill occurs, or water quality problems develop (including equipment leakslior spills), immediate notification shall be made to the Washington Emergency Management Division at 1-800-258-5990, and to the.AHB. 12. Erosion control methods shall be used to prevent silt-laden water from entering the watercourses.These may include, but are not limited to, straw bales, filter fabric,temporary sediment ponds, check dams of pea gravel-filled burlap bags or other material, and/or immediate mulching of exposed areas. 13. Prior to starting work,the selected erosion control methods (Provision 12) shall be installed. Accumulated sediments shall be removed during the project and prior to removing the erosion control methods after completion of work. 14. Wastewater from project activities and water removed from within the work area shall be routed to an area landward of the OHWL to allow removal of fine sediment and other contaminants prior to being discharged to thestate waters. 15.All waste material such as construction debris, silt, excess dirt or overburden resulting from this project shall be deposited above the limits of floodwater in an approved upland disposal site. 16. If adverse weather conditions that may cause siltation are encountered during this project,work shall stop until favorable weather conditions resume. 17. Extreme care shall be taken to ensure that no petroleum products, hydraulic fluid, fresh cement, sediments, sediment-laden water, chemicals, or any other toxic or deleterious materials are allowed to enter or leach into state waters. LOCATION#1: $Site Name: Honey Creek at Pipers Bluff 11XX Hoquiam Ave NE,Renton, WA .. mp,. WORK START: iSeptember 15, 2014 WORK END__October 14, 2014 WRIA Waterbody: Tributary to: 08-Cedar-Sammamish Honey Creek May Creek 11/4 SEC: Section:Township: Range: Latitude:Longitude: County: NE 1/4 10 23 N _._:.-105 E - ,47.503 122.149 King Location#1 Driving Directions From SR 900, go south on Hoquiam Ave NE. Turn left at the construction site. Go downstream of the outfall and waterline' crossing. APPLY TO ALL HYDRAULIC PROJECT APPROVALS Page 2 of 5 I/ Washington Department of Fish&Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 y,p„itAt.t.:,,; Olympia,WA 98504-3234 FISH nd WILDLIFE 360)902-2200 Issued Date: September 15, 2014 Permit Number: 2014-4-204+01 Project End Date: October 14, 2014 FPA/Public Notice Number: N/A Application ID: 1594 This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specifically Chapter 77.55 RCW. Additional authorization from other public agencies may be necessary for this project. The person s)to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies (local, state and/or federal)that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person. s) to whom this Hydraulic Project Approval is issued and operator(s) performing the work. This Hydraulic Project Approval does not authorize trespass. The person(s)to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action.The person(s) to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. MINOR MODIFICATIONS TO THIS HPA:You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA. A minor modification to the required work timing means up to a one-week deviation from the timing window i p the HPA when there are no spawning or incubating fish'present within the vicinity of the project.You may request subsequent minor modifications to the required work timing. A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the projects impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application fees or be issued.a new HPA. If you originally applied for your HPA through the online Aquatic Protection Permitting System APPS), you may request a minor modification through APPS. A link to APPS is at http://wdfw.wa.gov/licensing/hpa/. If you do not use APPS you must submit a written request that clearly indicates you are seeking a minor modification to an existing HPA. Include the HPA number and a description of the requested change and send by mail to:Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov.'Do not include payment with your request. You should allow up to45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA:You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must pay an additional$150 for the major modification. If you did not pay an application fee for the original HPA, no fee is required for a change to it. If you originally applied for your HPA through the online Aquatic Protection Permitting System (APPS), you may request a major modification through APPS. A link to, APPS is at http://wdfw.wa.gov/licensing/hpa/. If you do not use APPS you must submit a written request that clearly indicates you are requesting a major modification to an existing-HPA. Include the HPA number, check, and a description of the requested change. Send your written request and payment, if applicable, by mail to:Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234.You should allow up to 45 days for the department to process your request. Page3of5 Washington Department of Fish&Wildlife HYDRAULIC PROJECT APPROVAL PO Box 43234 a K,nm«u i Olympia,WA 98504-3234 FISH dWILDLIFE • 360)902-2200 Issued Date: September 15, 2014 Permit Number: 2014-4-204+01 Project End Date: October 14, 2014 FPA/Public Notice Number: N/A Application ID: 1594 APPEALS INFORMATION If you wish to appeal the issuance, denial, conditioning, or modification of a Hydraulic Project Approval (HPA), Washington Department of Fish and Wildlife (WDFW) recommends that you first contact the department employee who issued or denied the HPA to discuss your co p cerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal, you may request an informal or formal appeal. WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal.The informal appeal process includes a review by department managemer1't of the HPA or denial and often resolves issues faster and with less legal complexity than the formal appeal process. the informal appeal process does not resolve your concerns, you may advance your appeal to the formal process. You may contact the HPA Appeals Coordinator at(360) 902-2534 for more information. A. INFORMAL APPEALS:WAC 220-110-340 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures.The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request an informal appeal of that action. You must send your request to WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600,Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov;fax to (360) 902-2946; or hand-delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth flolor.WDFW must receive.your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference, or you are not the person who applied for the HPA,the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision-to the Director or designee. If you are not satisfied with the results of the informal appeal,you may file a request for a formal appeal. B. FORMAL APPEALS:WAC 220-110-350 is the rule describing-how to request a formal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures.The following information summarizes that rule. A person who is aggrieved by the issuance, denial, conditioning, or modification of an HPA may request a formal appeal of that action.You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision. You-may serve WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600 Capitol Way North, Olympia, Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov;fax to (360) 902-2946;or hand-delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor. The time period for requesting a formal appeal is suspended during consideration of a timely informal appeal. If there has been an informal appeal, you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal,the WDFW action shall be final and unappealable. Page4of5 i Washington Department of Fish&Wildlife HYDRAULIC PROJECT APPROVAL POBox43234 Olympia,WA 98504-3234 FISH and WILDLIFE 360)902-2200 Issued Date: September 15, 2014 Permit Number: 2014-4-204+01 Project End Date: October 14, 2014 FPA/Public Notice Number: N/A Application ID: 1594 Habitat Biologist Larry.Fisher@dfw.wa.gov for Director Larry Fisher 425-313-5683 WDFW Page 5 of 5 Depa'rtment of Commun • and, oft 0EconomicDevelopment Construction Permit: U14005011 IVR Number: 14005011 Permit Information Permit Name: PIPER'S BLUFF WETLAND/STREAM RESTORATION Address/Location: 1166 HOQUIAM AVE NE Parcel Number: 1023059312 Application Date: 09/16/2014 Permit Type:Engineering Issue Date: 09/23/2014 Permit Work Class: Construction` Expiration Date: 09/23/2015 Description: Wetland/Stream Restoration/Mo n itoring for Pipers Bluff.The mitigation installation must be completed beforeSeptember30,2014.See Conditions Attached. Contacts Billing Type Name Address • Phone X Applicant Aron Golden 846 108TH AVE NE, 200 B:(425)646-4411 Conner Homes BELLEVUE,WA 98004 Biologist Ed Sewall 27641-COVINGTON WAY SE #2 B:(253)859-0515 Sewall Wetland Consulting,Inc i COVINGTON,WA 98042 Contact Clark Close -- B:(425)430-7289 City of Renton General Conditions&Signature Permission is hereby given for the work described on this permit according to the conditions hereon and according to the approved plans and specifications pertaining thereto,subject to compliance with the Ordinance of the City of Renton. This permit and plans must be posted at the job site at all times. I hereby certify that no work is to be done except as described above and in approved plans,and that work is to conform to Renton codes and ordinances. Call(425)430-7203 or go to:www.MyBuildingPermit.com one working day in advance to schedule an inspections and for ANY work in the Right of Way. Call 811 to locate underground utilities at least twio full business days prior to any excavation . In accordance with RCW 19.122.033(4)the permit holder is required to contact(Williams Northwest Pipeline at 425.868.1010) Olympic Pipeline at 206.510.0575)(Puget Sound Energy at 425.457.5816)to request a consultation with the transmission pipeline company prior to performing any construction or excavation activities. This requirement to consult with the transmission pipeline company is in addition to the requirement to Call before You Dig as required in RCW 19.122. 23 Sture) ate) THIS PERMIT AND PLANS MUST BE POSTED AT THE JOB SITE AT ALL TIMES Page 1 of 1 DEPARTMENT OF COMMUr-Y AND city of y} X U ECONOMIC DEVELOPMENT g _ r `' ; • Conditions for Permit U1.4005011 Planning 1 The City of Renton approved Pipers Bluff Critical Areas Variance and an addendum to an existing SEPA to place a water utility line within a stream,-wetland, and their associated buffers on August. 28, 2014 (LUA13-001568).The applicant constructed the water line under and across Honey Creek, a , Class 4 stream, and through a Category 2 wetland and its associated buffer during construction of the plat without approval from the City of Renton. Preliminary Plat approval and Environmental SEPA) Review was.approved on November 20,.2012 for the 28 lot residential subdivision LUA12-076). The applicant ha has obtained final approval for the proposed Mitigation Plans (Pipers Bluff-Wetland & Creek Restoration Plan by The Watershed Company and Pipers Bluff Supplemental, Critical Areas Restoration Plan'by Sewall Wetland Consulting, Inc.). The mitigation installation must be completed before September 30, 2014. The wetland mitigation and monitoring plan shall be installed in conformance with the approved plans and the following . conditions of approval for consltruction permit number U 14005011: 1. Include coir logs at the toe of the slope (on both sides of the stream) using wooden stakes on each side of the Honey Creek bank over the entire length of the mitigation planting area approximately 62 feet). Coir logs supply protection to a stream-bank from erosion in areas with low-velocity current. 2. Move all crushed rocked, near the creek, at least 15 feet away from the ordinary high watermark or top of slope) of Honey Creek. 3. Replace topsoil to the original grades prior to replanting with a dense layer of native trees and shrubs to restore the function and plant community to this area. 4. Place erosion control fabric above the stormwater outfall location .The fabric will be used to prevent erosion of the slope until vegetation is establishes and has.a chance to stabilize the slope . The fabric may be constructed of a variety of materials from coconut fiber or jute to straw mulch encased in biodegradable plastic netting. Secure the fabric with'a dead stout stake, and backfill with clean soil. 5. Straw mulch is to be used vrithin 15 feet of Honey Creek. Arborist wood chips, or approved equal derived from the chipping of tree branches, stems, leaves, and needles may be used outside the 15-foot buffer from the creek: 6. Once the wetland mitigation has been installed pursuant to the approved plan, please have your wetlands specialist provide me with written verification that the installation is in conformance with the approved plan. The mitigation installation"must be completed before September 30, 2014. 7. Provide As Built Plans for the Mitigation Area. A copy of the as-built plans of the approved_ • mitigation plan shall be provided to the City of Renton upon completing of the installation . 8. Wetland Information Needed on Final Plat Map: RMC Section 4-3-050G.3 requires that all critical areas and their buffers be placed in either a Native Growth Protection Tract or Native Growth Protection Easement. Contact Clark Close, Project Planner at 425-430-7289 for questions. I Page 1of1 City of Penton Planning Division Con nor.Harries at Piptes 1316ff,LW SP.2 2 2l14 corittilteht Services Agreement. C. DIE7E1)TThisis'an agreement itiAgreementi.)between.Conner Hornet.at flpfee4 NO,LLC(M• herein).end Sewall Weiland Consulting.Ici("Consuftantl.. Owner and'Consultant agree as follows: 1. The Project: Owner owns real'pro:perry,located at 3j464 St 81st Pi.NeWcastle,WA.98.059 the#Rtopertn OWner se.ekS to build.(28)Single familyResidences on the Piper's Muff proper (the"Projectl, Retention of Consultant .Coritibitantisa wetlandprofessional fa m.ifiar with projects similar to this Owner Project. Ownerwilhesto retain Cansultanttd provide services for the Project pursuant to the terms of this Agreement Consultant wishes to be retained by'OWner to provide services With.regerditOthisTrOilect pursuant to the-terms:of this Agreement I4. Relationshianf PattleS: ThisAgreernent is Intended as an agreement to retain the Consultant as an independent contractorto assist OWnerwith the Pitgect,and the parties do riOtintendto and tin rintscreate a partnership,joint Ventite or arty other relationship. The Consultant shall have.no authority-to act for OWner orto make or enter into any agreement or binding. commitment in:'the narri ofi cr on behalf of;the Owner in connection with the Project,except' as specifically granted by OWnerin this Agreement 5.Can:sultan:Cs:Services: In.considemtion of the.mutual promises herein and byexecuting.this. AgreementConsultant agrees Ito promptly•perrorm services as reasonably necessary in- tonriettiati With the Ptolect. Tihe.Services to!be performed byCOnsultant are:set forth in Exhibit. A to-this Agreement. 6 ConStilianfs Olikationfk The thritufet duties and obligations.indude providing the specific Services provided by thnsUltantin EichibitA,honoring its prorntses m this Agreement,and the following basic-obligations: a.Titnelyrequestfrom Owner,in writing,all information that is necessary for Consultant to complete its,work Promptly. Ta provide Owner with as much:Advtqee,noticeaS possible of requests for information that-is-required.Of that tonsulta ntanticip:ates•may be required tocompletelts•woric ci To perform all work and provide alrserviOes In a manner(i)consistent with applicable bililding codes and regulations and(11)meeting orexceeding the skill and care ordinarily provided by persons of the same professibn u oder the tarei e-dr similarcirtumstelide§,- d. !Vial:nein the confidentiality Ofthe-confidential and proprietary Information it receives• frarnOWner Unless:to doso lvould be illegal or would prevent Consultantfrom timely completing its work On-the Project. ObtgatiOnsof Owner. OWnerWill.tra.vetbe following obligations: IlniestherWise provided for under-this Agreomerit,Ownershalt provide,InformatiOti andor SpeCificationsto-Consultant:in a timelymariner regarding requirements for and limitations on the Project. tinlwItiliervIca-Agreetnerit Page i o 1nitiaI Recommended for Approval . By astAA 7(2-.5//r 5v67e-a- 727 covorlew ftppxovira-/ 0/9005-0 b. Render decisions an d approVe theConsultants submittals in a timely manner in orderto avoid unreasonable delay and progress of theConsultants work on the Project Owner Shall provide surveys,engineering reports,envirortrriental reports,test,.and other like Information availableto it that Consultant iny requestto complete its workcm the Project, CL Issue.payrrieritstO COnsultant Consistent with theterms of this Agreement 13. Compensation, Consultailtshail ba '01-riperisatecifor serVices on either a Ned price or on a time and Material basis, a. if a fixed price,the total fees and costs for Consultantl s mites With regard to the Project shall not exceed$7,000.00, b.. If services are provided on atime and material basis,Consultant shall issues its invoices for the services related tothisProjett pursUaritto the terms of this Agreement and the billing rates and allowed reimbursable costs set forth on Exhibit 13 to thisAgreement. Payment Owner shall pay consultant pursuant-to thefailowingterms: a. Consultant shall invoice Owner by thetwentY-fifth(20)for payment on the tenth(IA of the fallowing month for the workocimpletecl in the prior month.-Cansultent.sha)l provide invoices in a format easy to understand. b. Owner shall review each invoice on receipt and payall non-disputed items,within thirty 30)days. Owner shall notify Consultant of disputed Rents within thirty(30)days and may withhold.payment of the disputed amount. c: Payment of an invoice does not constitute•an.acceptance of the Consultants work or waiver of any right or remedy that Owner may have.,but rather Merely:indicates that the person paying the invoice at.bwrierls unaware of reason to'withhold payment-at the time payment Is due to Consultant d. No change orders,extra work,charges beyOnci.originatscope of work will he accePtect for payment by Owner unless agreed to in writing by Owner prior to the work subject to the change order orpurchase'order being.performed by Consultant e. Owner shall have no Obligation ta pay any invoicefrom Consultant,including but Act limited-to invoices for orders or extra work orders',unless Consultant-submits the invoice for the work to the Owner within:thirty(3(4 days following completion of the work f4.. Owner shall have no obligation to.pay any invoice ort-a fixed.price contraet unless and until the fixed price is agreed upon In writing. Likewise,Owner shall have no obligation to.pay:an invoice on:a.Ono and materiel contract.unless an et until the billing rates and reimbursable costs are agreed upon in writing. I-0.. Cc/OW=10gs and Licenses. °wrier and Consultant represent to one anotherthat they are the OWner,licensee;or otherwise are authorized to.conv.eythe information and documents they are transmitting to the other:. • it Owiterihinaf Work.The product,.cfrawings,reports,and otherworic created by Consultant at the request of owner is work for hirea.nd,therefore,.is the property fOwner. Owner shall retain all ownership interest,In cludingeopyright;and the submission.of the workto Meet or satisfy regulatory requirements or similar purpose shall pot be construed as a publication in derogation of the rights reserved by°Wrier,: Consultant services Agreement PageZ ol inftals 4;..) _ 1 12 ihsUrarice, Prior to'starting Work Consultant shall include OWnerandl The Conner Homes Group, LLC as an additional insured on each Consultant's insurance policies for general liability and excess liability,verified by a certificateof insurance and receipt of the additional insured form and endorsement. Limits on Consultant's general liability shall be equal.to orgreaterthan limits of$1,000,000.00 per occurrence: Alf policies shall be with companies acceptable to Owner and shall have a best rating of"a"or better. The additional insured:endorsement provided by. Consultant shall name Owner on a primary and non-contributory basis and shali remain in place at least six years after completion of the,Project. The certificate(s)and endorsements(s)shall provide that the coverage undersuch policies will not be reduced below$1,000,000,meddled, cancelled,orterminated withoutthirty days advance written noticeto Owner. Consultant shall ' normodify or terminate any of the insurance policies,either before or six years after completion efthe Owner Project,without Owner'prior written consent Consultant shall'also provide Owner evidence ofcurrent professional liability coverage with limits of net less than$1,000,000 per occurrence. 13. Indemnifcatien. :Consultant agrees to defend,indemnify,and hold Owner harmless from any and ali claims;darnaiids;losses]damages;and liabi1itieste or by third patties arisingfron, resulting from,or connected with services and work performed or to be performed by Consultant with regard to the Projector by Consultant's agents,employees,and lower-tier subcontra.ctotrsand suppliers ofanytier;even though such claims may prove to be false, groundless,or fraudulent,to the fullest extent permitted by law and subject.only to the limitations provided below: Consultant's duty to indemnify Owner,including the duty and cost to defend,shalt not apply to.Iiability for damages arising out of bodily injuryto persons or damages topropertycaused by,orresultingfroin,the sole negligence of Owner,or its agent or employees. Consultant's duty to indemnify Owner,indudingthe duty-and cost to defend,from liability for damages arising out of,related to,or connected with in anyway bodily injury to • persons nr damages to property caused by Or resulting from the concurrent negligence of Consultant,.or its agents or employees;and Owner or Owner's agents or employees,shall apply. only tothe extent of the negligence of Consultant or Consultant's agents or employees, 14,. Tortiriation. Owner rnay,wit or without cauteand at anytime,imrnediately terminate this Agreement,in whole or in part by written notice to the Consultant.Tetmination with cause includes—but is not limited tb'Consultant failingto timely fulfill any cif Its obligations pursuant to this Agreement,failing to perform work pursuant to the schedule,submitting inaccurate invoices;,or failing to maintain proper insurance and licenses. In the event Owner terminates this agreement for cause;Consultant shall have no rightto payment,Other than for work performed within the agreed Upon scope of work and pre-approved written change orders,. completed'throughthe date of termination,fess any damages suffered by Owner as determined by Owner,and paymetit'shall not be due.to Consultant unless it is otherWise in compliance with this Agreement. In the event OWnertermiriates the agreement Without cause,the Consultant shall be.entitied to be paid the sum of any invoices pending at the time of termination,subject to the terms'ofthis:Agreement,'plus its'work in progress;less any damages suffered by Owner. Work in progress is defined as•the;Consultant's actual direct costs Incurred.for services performed since its last invoice,performed.within the approved scope of work and pre- app.rovedwritten change orders and`priorto the-effective date of termination: Consultant Shall not be entitled to anyother costs,darnages or allowances for overhead'and profit on Work not performed. All.piovisions and;obligations set forth herein,other than Consultant's obligations Consultant 5erices Agreement Page aof7 •Initials to perfortn fultherwOrk and Owner's payment obligation,survive th.etermination of this Agreement, 15. Paitial Invalidity. In case any provision of this Agreement,or anyotherriocum.ent contemplated by this Agreement,shall he liwafid,:illegal or unenforceable,such provisions.sha 11 be severe ble frotn;.the rest of this Agreement;and thevalidity,legality Or enforceability of the remaining provisions shall Rot in anyway be affected or impaired thereby- 16.DisOutes„ Any dispute between Ownerand Consultant not otherwise resolved shall be decided through binding arbitration,- A,condition precedentto any party's right to commence:arbitration Is(1) completion of mediation with a.third-party neutral or(1i)the dispute remaining unresolved for at least 45 days following deliVery of a written request for mediation. Each pa rty.shall.bear their own costs of mediation: The arbitration shall be administered by the American Arbitration Association(AAA)under its Construction Industry Arbitration.Rules unless the parties,mutually agree otherwise. In the the dispute involves claims of 75000.00 or less,the dispute shall be decided bythe arbitrator pursuant to the AAA FastTradc prOceduret,The arbitratorsliall permitreasonable discovery,with.the goal being prompt,efficient and economical resolution of the dispute: An arbitration award may be filed with a court of competent jurisdiction with the effect ofa final judgment. 17. Governing taw,Venue,Feesi. ThisAgreernentshall be.goVerned by the laws a theState qf Washington. Any dispute shall be mediated'andJorarbitrated ini<ing.County,Washington,The prevailing party in an arbitration relating in any way to this Agreement shall be entitled to recoverfrom the other party its reasonable attorney's fees and costs incurred, 18, Entire Agreerbent, This.docuttent-represents the entire agreemant between the.parties and any other dr prior agreement is terminated.. No Party:has entered into this Agreement based on any representation bythe other party.. The language of this Agreement is the product of negotiation between the parties and their respective-co unsel„and shall not be construedagainst any parly.basedon draftstnanship by one ot the other patty ifrththe eyent of a dispute,. Authority. By their signatures petroirVi the Signers wartant-theit eUthority tn bind the mselves and. the parties for whichthey a re.signing.. 211, Counterparts. this:Agreement.may•be executed in counterparts.eadi Of which shall constitute an original and together shalt be deemed one agreement..Signatures obtained byfacsimile;or emailed PDF ot J PEG,will be treated as valid for all pUtpcises, CONSULTANT Conner Homes at Piper's Bluff,LLC, Sewall Wetland Consolting,ino, a Washington-Limited Liability Company" By By sed.,Atho2 agefil) „,"• , Date$igned Date• ned Y/2 z;AV JIPrintName trr Print Name Rob RiSineer Title Title Land Development PrOiect Manaeer cp.nsultant.Sces Agreern eat Pagt of7 Conner Homes at Pipers Scone of Wo rk Perthe monitoring recplireMents for t4e.Pipers•Bloffprojecttlie site rostte monitored as(blows: Year 4:tte' a Y.tatZ..-Ilite visit an -report 1! Year 3::,,,Ii:teVisitandlieport42. Yearitt.,.Wte visit and:I-report A Yr5tevisitand2port On each site visit Sewell Wetland Consiliting,Inc.Will.he inspecting installed vegetation for survival...es weflsveetationon coverage and inonitorIng the stream channel as.described irrthe approved Mttigatio.a Plan,The estimat8 for work is.a totaH.of$7,000.00, COMPLIANCE iVI 0 WOKING PLAN AS-BOILT FOLLOWING COMPLETION OF THE RESTORATION WORK SHOWN 011 THIS.PIA A QUALIFIED PROFESSIO NAI-SHAIOREPARE AN AS-BUILT OF THE cOMPLTFD WORK-'THE AS-BUILT SHAII.S11MIVIARIZE TH.E COMPLETED WORICANDANY DEVIATIONS FROM THE APPROVED VERSION OF THIS-PLAN.. IN ADDITION(THE As-0011-T SHALL CONTAIN BAsEU NE MO.N ITORI.%DATA AND PI-tOTORApHS FOR EACH PLANTINGAREA, BASELINE MONITORING METHODDLOGYi. PERMANENT COMpLIANCE.MON T.T'ORI No:PLOTS ORTRANSECTS SHALL BE ESTABLISHED AN DI BASELINE M ON ITORENG.DATA SHALL E.E COLLECTED To DOCUMENT VEGETATION CHARACTERISTICS WITHIN EAtH.PIA111105AREA COMP:LANCE MONITORING PLOTS OK TRA1'.4.SECTS-SHALL BE SCALED APPROPRIAT.ELY TO ACCURATE LYSAMPLE NAINEWOODY PlANTSPECIES.:MIEES AND SHRUBS),NATIVE EMERGENTWEILAND SPECIES(WHERE PLANTED),AND NOXIOUS WEED SpECIES, BASELINE FIELD 0ATA coincliON SHALL BE CONsISTENT. WITfITHAT OUTLINED FORYAN N UAL COMPLIANCE MONITORING.m, O :PERMANENT PHOTO J"-`QIN.TSHA4i BE:ESTABLISHED AN!) PHOTOGRAPHS SHALL BETAKEN TO DOCUMENT REPRESENTATIVE CONDITIONS WITHIN EACH 1:,LANTING AREA. THE LOCATION OF eAsECI INM IVIONITO RING PLOTS OR TRANSECTSAS WELL AS PHOTO POINTSSFIALLBE SHOWN ONTHE AS-BUILT DRAWINGS, THE AS-BUILT.AND BASEUNE,MONITORING DATA sHALL 14,E SUBMITTE13 To THE cITYOMENTON NO LATER THAN BO OAS'S FROIVI THE DATETHATTH E WORK sHOWN.ON THIS PLAN HAS SEEN COMPLETED, Ccirriultantg.arvicesAzteerperit Pa*S of7Initlaks15 Conner Homes at Piper's Bluff, LLC Eithiblt A(coht • Scone of Work ANNUAL COMPLIANCEMONITORING FOLLOWING ACCEFTANC.E OF THE AS-BUILT BY THECITY OF RENTOK.ANNUAL COMPLIANCE MONITORING SHALL BE COMPLETED FOR A PERIOD OF FIVE(5) YEARS,ANNUAL COMPLIANCE MONITORING.SHALL BE COMPLETED BY A QUALIFIED PROFESSIONAL AND SHAM COMPRISE A SITE INVESTIGATION AND REPORTING PER THE FOLLOWING INTERVAL v, QUARTERLY DURING THE FIRST YEAR(YEAR1)FOLLOWING PLANT INSTALLATION;AND, IN APRIL OR MAY ANDAUGUST,ORSEPTEMBER OF THE SECOND THROUGH FIFTH YEARS(YEAR 2.TH ROUGH YEAR 5).FOLLOWING INITIAL PLANT 1NSTAUATION.,, COMPLIANCE MQNITORING SHALL COMPRISE A QUANTIT.ATIVEASS.ESSMDITOF CONDITIONS WITHIN EACH.PLANTING AREA FOR,PURPOSES OF EVALUATING THE: CURRENT YEAR'S PERFORMANCE STANDARDS. -AT THE TIME OF EACH IVIONITORINGASSES.SMENT,THE FOLLOWING INFORMATION SHALL BE COLLECTED AND ASSESSED RELATIVE TO THE PERFORMANCE STANDARDS' ESTABLISHED FOR THE PROJECT; 4 THE CONP:MoN WALLED PLANT STOCK INCLUDING. SURVIVORSHIP,HEALTH,AND VIGOR, THE RATIONALE.FOR POOR CONDITIONS,IF PRESENT,WILL BE DETERMINED. THE SPECIES COMPOSITION'OF AND AREAL COVERAGE PROVIDED NATIVE WOODY PLANT SPECIES.(TREES AND.SHRUBg AND NATIVE • EMERGENT PLANT SPECIES(WHERE PLANTED) THE SPECIES COMPOSITION OF AND AREAL.COVERAGE PROVIDED BY NOXIOUS WEED SPECIES. COMPLIANCE MONITORING WIETH0DOLOGYi. A DIRECT COUNT INVENTORY AND ASSESSMENTOF ALL INSTALLED PLANT STOCK SHALL BE USED TO EVALUATE PLANT CON=IONS; SPECIES CO MPOSITIO.N AND AREAL COVERAGE SHALIBE ASSESSED USINGTHE"LINE INTERCEPT TECHNIQUE"ESTABLISHED DURING THE AS-BUILT; a PHOTOGRAPHS OF EA-CH PLANTING AREA SHALL B ETAK%FROM THE PERMANENT PHOTO POINTS ESTABUSHED DURING THE AS:BUILT,- DURING EACH COMPLIANCE plioNnt Rule A$,545s1VM.EACH PLANTING AREA, WILLBE.ASSESSED FOR EVIDENCE OF EROSION,SW.UR;AND/ORDEPOSMON FINES-PARTICULARLY INTHOSE AREAS DOWNSLOPE/DOWNSTREAM OFTHE. STORNIWATER QUTFALL,WHERE NECESSARY,RECOMMENDATIONS FOR CORRECITVEACTIONSTO STABILIZE solLsjappgs WILL BE PROVIDED IN THE RELATED MONITORING REPORT, THE RESULTS OF EACH COMPLIANCE MONITORING ASSESSIVIENT SHALL I3E SUMMARIZED IN A WRITTEN'REPORT AND SIJBMI I i TO THE CITY OF RENTON NO LATER THAN-NOVEMBER BO OF THE RESPECTIVE MONITORING YEAR:, ConsidtarttS0vIces Agreemeni Page 6 of7 Conner HOnles at Piper's Bluff, Exhibit B N/A Consultan%$14vices Agreeirip.,nt Page 7 pf 103als 17-: City of Renton Planning Division Conner Home's at Piper's Bluff, LLC MASTER SUBCONTRACTOR'S AGREEMENT SEP 18 2014 This agreement is made by Conner Homes at Piper's Bluff, LLC,a Washington Limited Liability r• -" CONTRACTOR" herein),and Leonardi Landscaping,Inc. ("SUBCONTRACTOR" herein). C r•i I r: L., •-! upon SUBCONTRACTOR from time to time during the term of this Agreement to perform subcontracting services with regard to the project known as Piper's Bluff("Project"). All work by SUBCONTRACTOR shall be performed at the price set forth in Exhibit E—Schedule of Values. This contract shall apply to each phase on which SUBCONTRACTOR performs work, unless otherwise agreed to in writing signed by CONTRACTOR and SUBCONTRACTOR. SUBCONTRACTOR agrees to perform such work in accordance with instructions or written standards from CONTRACTOR, as they may from time to time be given to SUBCONTRACTOR. All of the terms of this Agreement shall apply to each item of work performed by SUBCONTRACTOR for CONTRACTOR,during the term of this Agreement. 1. The Contract Documents. The Contract Documents consist of this Agreement and the following Exhibits, which areincorporated into this Agreement by reference: Recommended for Approval Exhibit A—Scope of Work Exhibit B—Subcontractor Insurance Requirements Exhibit C—General Performance Standard By C id Date 0/09* Exhibit D—Field Management Standards Exhibit E—Schedule of Values 2. Term of Agreement. The term of this Agreement shall commence the 12th day of September,2014 and continue until terminated by CONTRACTOR. None of the provisions of this agreement shall be modified o'r superceded, except in writing signed by CONTRACTOR. 3. Contractor Registration. CONTRACTOR is a general contractor, registered with the State of Washington, Department of Labor and Industries, under Contractor Registration No. CONNEHP870KB. SUBCONTRACTOR is fully licensed, registered, and in good standing with all governmental agencies. SUBCONTRACTOR covenants and agrees that at all times during the term of this Agreement SUBCONTRACTOR . will be fully licensed, registered,and remain in good standing with all governmental agencies. 4. Compliance. SUBCONTRACTOR covenants and agrees that all of the following statements shall be true at all times during the term of this Agreement: a) SUBCONTRACTOR is an"employer"as defined by the Unemployment Compensation Act of the State of Washington,and all similar acts of the federal government and including all social security acts. SUBCONTRACTOR will withhold from his payrolls the necessary social security and unemployment reserves and pay the same as required by law. Upon request, SUBCONTRACTOR shall furnish the CONTRACTOR with evidence that the same has been paid before final payment is made to SUBCONTRACTOR under this Agreement. CONTRACTOR shall in no way be liable as an employer to, or on account of, any of the employees of SUBCONTRACTOR,or any other persons engaged by SUBCONTRACTOR to perform any work on behalf of CONTRACTOR. SUBCONTRACTOR will defend, indemnify,and hold harmless CONTRACTOR from any and all claims, by any person,with respect to any assertion that any persons employed by SUBCONTRACTOR or otherwise engaged by or through SUBCONTRACTOR are employees of CONTRACTOR. b) SUBCONTRACTOR, is now and will continue in full conformance with all laws, rules, regulations and codes of all state,federal and local agencies pertaining to SUBCONTRACTOR, including, but not limited to those ' pertaining to federal and state income taxation, social security,industrial insurance, and unemployment compensation acts. Upon request,SUBCONTRACTOR shall furnish the CONTRACTOR with evidence that the same has been paid before final payment is made to SUBCONTRACTOR under this Agreement. SUBCONTRACTOR hereby releases and agrees to defend, indemnify, and hold harmless CONTRACTOR from any and all liability under said laws,rules, regulations and codes relating to or arising out of SUBCONTRACTOR's failure to pay federal and state income tax,social security, industrial insurance,and unemployment compensation as required by law, rules,regulations,and codes. G:IPUBLICIPROJECTS1Piper's BlutflAcqulstlon and Development\Cantractsll.andscape Malntenanceleonardl-Piper's Bluff Subcontract Agreement Template(v-2-05-13).doc Conner Homes at Piper's Bluff,.LLC Page 1 of 9 9/12/2014 INITIALS c) SUBCONTRACTOR will pay before delinquency, all claims(including material, labor,and labor fringe benefits due), and will pay all federal,state and local taxes and license fees, including sales and use taxes, if any,for which the SUBCONTRACTOR(or any of his suppliers or any person working for, under or through SUBCONTRACTOR), may be liable for in connection with the performance of work for CONTRACTOR. SUBCONTRACTOR shall pay to his employees all wages,fringe benefits,travel and incidental payments that may be required by law or may be required under any union contract agreement between SUBCONTRACTOR and any trade union. Upon-request, SUBCONTRACTOR shall furnish CONTRACTOR with evidence that the same has been paid before final payment is made to SUBCONTRACTOR under this Agreement. SUBCONTRACTOR will defend, indemnify, and hold harmless CONTRACTOR`from any and all claims, including liens, by any employee or material or equipment supplier of SUBCONTRACTOR relating to or arising out of SUBCONTRACTOR's failure to pay all wages,fringe benefits,travel, incidental payments, or material or equipment suppliers as required by law or agreement. d) CONTRACTOR may, at CONTRACTOR's sole discretion and without advance notice to SUBCONTRACTOR, honor any claim of garnishment, or claim related to a written assignment of accounts receivable given by SUBCONTRACTOR, or other evidence of a.valid claim in the claimant to the funds,of SUBCONTRACTOR in CONTRACTOR's possession. CONTRACTOR may make payment directly to such claimant and shall thereby discharge allof its obligation to S•UBCONTRACTOR to the extent such payment is made. CONTRACTOR mayreimburse' se or any legal`fees or other actual expense incurred,from funds it'holds for SUBCONTRACTOR. e) SUBCONTRACTOR shall comply with all rules and regulations that may from time to time be established byCONTRACTOR:''" ' f) SUBCONTRACTOR shall not reproduce, divulge or otherwise provide to a third party or use on any other than CONTRACTOR's sites plans, blueprints and construction related documents that are the confidential property of CONTRACTOR without the written consent of CONTRACTOR. SUBCONTRACTOR shall provide advance notification to CONTRACTOR in writing and obtain CONTRACTOR's written approval prior to doing,any modification of the plans and specifications to maintain compliance with code. g) Prior to starting work SUBCONTRACTOR shall provide a Certificate of Insurance to CONTRACTOR. CONTRACTOR shall be added as an Additional Insured on each SUBCONTRACTOR's insurance policy for General Liability and Excess Liability,verified by a Certificate of Insurance and receipt of the Additional Insured form and endorsement. Limits on the SUBCONTRACTOR's General Liability for Premises/Operations and Products/Completed Operations shall be equal to or greater than the CONTRACTOR's limits of$1,000,000.00 Per Occurrence. All policies shall be with companies acceptable to CONTRACTOR and shall have a Best rating of"A"or better. SUBCONTRACTOR shall provide CONTRACTOR with certificates of insurance and endorsements, in form and substance satisfactory to CONTRACTOR;evidencing that CONTRACTOR is additional named insured under insurance polices with coverage and minimum limits set forth in Exhibit B. The Additional Insured Endorsement shall name CONTRACTOR on a Primary and Non-Contributory basis using Modified (CG 2010 11/85)or equivalent. Said insurance shall remain in place at least six years after completion of CONTRACTOR approved work.The certificate(s)and endorsements(s)shall provide that the coverage under such policies will not be reduced, modified,cancelled, or terminated without thirty days advance written notice to CONTRACTOR. Notices of intent to modify, cancel or terminate shall be absolute, and the required endorsement shall not contain exculpatory language in favor of SUBCONTRACTOR or its insurer in the event required notice is not given to CONTRACTOR. SUBCONTRACTOR shall not modify or terminate any of the insurance policies,either before or six years after completion of the CONTRACTOR approved work,without CONTRACTOR's prior written consent. 5. Performance of Work. The following provisions shall control SUBCONTRACTOR's performance of work for CONTRACTOR: a) SUBCONTRACTOR agrees to commence work on each project pursuant to the specified start date on CONTRACTOR's schedule found at connernet.net or the oral instruction of CONTRACTOR. SUBCONTRACTOR agrees to complete all work as specified by CONTRACTOR's schedule found at connernet.net. SUBCONTRACTOR represents and warrants that it is familiar with CONTRACTOR's scheduling practices, that it has access to connemet.net, and that it shall comply with all scheduling requirements. b) Prior to commencing work SUBCONTRACTOR must satisfy itself as to all matters and conditions that may affect the nature or character of the work, including but not limited the location of the work,the schedule of work G:IPUBUCIPROJECTS\Pipers Blu(Mcqulstion and DevelopmenttConbactsLLendscape MaintenancelLeonardi-Piper's Bluff Subcontract Agreement Template(V-2-05.13).doc Conner Homes at Piper's Bluff, LLC Page 2 of 9 9/12/2014 INITIALS l found at"connernet.net,the character, kind and quantity of material needed,and the kind and quantity of equipment needed. j c) SUBCONTRACTOR's work and manner of performance shall,as to each performance, be to the full and complete satisfaction of CONTRACTOR. All work shall be performed in a good and workmanlike manner, unless a greater standard of performance is specified herein or in any material incorporated herein or in any other specifications governing SUBCONTRACTOR's performance. At a minimum, all work shall fully conform to CONTRACTOR's performance standards, comply with all codes and rules,and be performed pursuant to plans - and specifications provided by CONTRACTOR. SUBCONTRACTOR acknowledges that CONTRACTOR supplies access to its plans and specifications via the Internet at"http://conner.drsiolanroom.com". SUBCONTRACTOR represents and warrants that it is familiar with CONTRACTOR's practice of providing plans and specifications via internet,that it has access to http://conner.drsiplanroom.com,and that it shall perform its work pursuant to the terms of this Agreement and applicable plans and specifications. SUBCONTRACTOR warrants that all persons employed by,or otherwise working through or under SUBCONTRACTOR in the performance of work for CONTRACTOR,shall read and fully understand, and perform in accordance with the CONTRACTOR's general and specific performance standards. d) SUBCONTRACTOR shall remedy any defective(or unsatisfactory work within 24 hours after notification from CONTRACTOR to do so. If any such work is so deficient in CONTRACTOR's estimation as-to require its complete removal, SUBCONTRACTOR shall immediately upon receipt of direction from CONTRACTOR, proceed to remove and take down such work. e) SUBCONTRACTOR warrants that it fully understands what constitutes an acceptable condition of the surfaces/substrates upon which the SUBCONTRACTOR will perform/apply its work and materials. If the SUBCONTRACTOR encounters surfacesiunacceptable for the proper installation of its work, it must notify the CONTRACTOR in writing prior to proceeding and obtain CONTRACTOR's written approval to address surface/substrate conditions. Proceeding prior to this notification and CONTRACTOR's written approval shall place the costs of any repair or replacement of the SUBCONTRACTOR's work resulting in correction of the underlying condition, or resulting damage,solely upon the SUBCONTRACTOR. f) Unless otherwise specified by CONTRACTOR, SUBCONTRACTOR shall furnish all permits, inspections; supervision, labor, materials,tools and machinery necessary for SUBCONTRACTOR's performance of work for CONTRACTOR. All equipment and materials supplied by,for or through SUBCONTRACTOR and incorporated into any structures that are the subject of SUBCONTRACTOR's performance, shall be new, of good quality,free of defects, and in full compliance with CONTRACTOR's requirements and specifications, and with any representations of SUBCONTRACTOR. Any and all product or manufacturer's warranty(ies)for the equipment and materials supplied by,for or through SUBCONTRACTOR and incorporated into any structures that are the subject of SUBCONTRACTOR's performance, shall transfer to CONTRACTOR. g) SUBCONTRACTOR shall sublet no work to,any other person or organization without the CONTRACTOR's written consent. h) SUBCONTRACTOR accepts full responsibility for all acts and omissions of all persons performing work, or otherwise actions for, under or through SUBCONTRACTOR. Failure to comply with the General or Specific Performance Standards shall result in a minimum fine of fifty and xx/100 dollars($50.00), and may result in the termination of the contract. i) SUBCONTRACTOR agrees to commence work for each project using the job schedule information found at CONTRACTOR'S Website, connernet.net. SUBCONTRACTOR agrees to be bound by the schedule set forth at connernet.net, including any changes that CONTRACTOR may make to the schedule: SUBCONTRACTOR may not modify the schedule unless agreed to in writing by CONTRACTOR prior to commencement of SUBCONTRACTOR's work. 6) SUBCONTRACTOR_agrees to access"Punchlist"and"Schedules.",found at CONTRACTOR'S Website, • connernet.net. SUBCONTRACTOR agrees to timely and promptly complete all Punchlist work and Change Orders pursuant to the CONTRACTOR's schedule. 6. Safety Requirements. The following provisions shall also control SUBCONTRACTOR'S performance of work for CONTRACTOR: G:\PUBUCIPROJECTS1Pipers BlufMcqufsdon and Development\ContractstLandseape MalntenancelLeonardl-Pipers Bluff Subcontract Agreement Template(v-2-05-13).doe Conner Homes at Piper's Bluff, LLC Page 3 of 9 9/12/2014 INITIALS a) SUBCONTRACTOR acknowledges and represents that he has made an on-site inspection of the Premises and the work area so as to be familiar with all conditions,which may affect the safety and health of its employees as well as those of its SUBCONTRACTORS. SUBCONTRACTOR shall, at all times, be responsible for providing a safe work site and be responsible for the safety of all personnel, equipment, and materials within SUBCONTRACTOR's care,custody, or control. SUBCONTRACTOR, all of its employees, and its SUBCONTRACTORS shall follow all applicable safety and health laws, rules, and requirements pertaining to itsworkandtheconductthereof, but not limited to, compliance with all applicable laws,ordinances, rules, regulations, and orders issued by a public authority,whether federal, state or local, including OSHA,WISHA, and any safety measures required by CONTRACTOR. Notwithstanding the foregoing, SUBCONTRACTOR, as an independent contractor, is solely responsible for controlling the manner and means by which it performs the work pursuant to this Agreement and implementation of appropriate safety protections. b) Unless otherwise agreed to by the parties in writing, SUBCONTRACTOR shall provide all safety equipment, materials,tools and personal protection equipment necessary to perform its work in a safe, healthful and workmanlike manner. SUBCONTRACTOR shall immediately report to CONTRACTOR all accidents, occupational injuries, and illness involving its employees or those of its SUBCONTRACTORS, relating to the work or which cause any injury to a third party or which cause damage to the property of Owner, CONTRACTOR or a third party. SUBCONTRACTOR shall promptly furnish to CONTRACTOR copies of any worker's compensation report of injury or illness forms filed by any of its employees or those of its SUBCONTRACTORS and when requested,assist CONTRACTOR in any investigation it may conduct of any such accident, injury orillness. c) Prior to commencing its work SUBCONTRACTOR shall develop a written site-specific safety plan that identifies all anticipated hazards that will be encountered in all phases of its work and which identifies the specific means that will be used to address those hazards. The site-specific safety plan shall be submitted to CONTRACTOR prior to SUBCONTRACTOR commencing its work for CONTRACTOR. The safety plan shall comply in all respects with the Washington Workers Compensation and Employer laws(WISHA),all regulations promulgated there under, and all other applicable federal, state, or local statutes, regulations,ordinances,or rules. d) SUBCONTRACTOR shall,prior to commencing work for CONTRACTOR, have in place a written Accident Prevention Program that complies in all respects with Washington Workers Compensation and Employer laws WISHA), all regulations promulgated there under,and all other applicable federal,state, or local statutes, regulations, ordinances, or rules. As part of its Accident Prevention Program, SUBCONTRACTOR shall establish and enforce a disciplinary schedule for safety violations. The disciplinary schedule shall be enforced regardless of who discovers the safety violation(s). Disciplinary action is not contingent upon the issuance of a citation by an enforcement agency. The Accident Prevention Program shall be submitted to CONTRACTOR prior to SUBCONTRACTOR commencing its work for CONTRACTOR. e) SUBCONTRACTOR agrees to fully cooperate with CONTRACTOR in the preparation and implementation of all job-site safety plans. SUBCONTRACTOR agrees to cooperate fully with CONTRACTOR in scheduling and ensuring attendance at safety meetings. SUBCONTRACT agrees to submit itself and fully cooperate with periodic audits, assessments, reviews, and/or training programs designed to ensure compliance with any applicable safety plans. f) SUBCONTRACTOR shall submit to CONTRACTOR on a weekly basis,and on request of CONTRACTOR, copies of all documentation maintained by SUBCONTRACTOR pertaining to safety and implementation of its safety plan (such as weekly safety meeting minutes and attendance sheets)as well as documentation relating to SUBCONTRACTOR's compliance with any other job site safety plan applicable to its work. SUBCONTRACTOR shall promptly provide CONTRACTOR with written notice of any safety hazard'or violation found anywhere on or adjacent to the construction site. g) CONTRACTOR may use disciplinary measures at its discretion to enforce compliance with safety requirements, including termination of this Agreement. h) SUBCONTRACTOR shall be responsible for the proper(i.e.legal)disposition of all hazardous and toxic waste materials used or created by SUBCONTRACTOR. Under no circumstances shall any such materials be disposed of on any site on which SUBCONTRACTOR is performing work, or on any adjacent site. SUBCONTRACTOR shall be responsible for all expenses, damages, liabilities, including reasonable attorneys fees,occurring as a result of SUBCONTRACTOR's use,or improper disposition, or release of any hazardous or toxic waste materials, as they may affect any person or property. In the event of any such release, G:\PUBLICIPROJECTSIPipers BlufMcqulstlon and Development\Contractst andscape Malntenanceleenardl-Piper's Bluff Subcontract Agreement Template(v-2-05-13).doc Conner Homes at Piper's Bluff, LLC Page 4 of 9 9/12/2014 INITIALS .,y( / 7 7 SUBCONTRACTOR shall immediately notify CONTRACTOR, all persons in and around the site,and all appropriate governmental agencies (including police and fire departments). "Release"shall include,.but not be limited to, any spill, visible or invisible,detectable leak, pumping, pouring, explosion,emission, discharge, injection, escape, dumping, disposing or other entering into the environment of any substance,chemical, material, pollutant or contaminant. SUBCONTRACTOR shall further be solely liable for any and all taxes and fees,levied by any governmental or quasi governmental agency,on account of any hazardous materials brought onto any site by,at the direction of, or for use by SUBCONTRACTOR, or any person working by, under or through SUBCONTRACTOR. Further, SUBCONTRACTOR shall indemnify CONTRACTOR for and defend CONTRACTOR from all claims brought by any person or governmental agency,that there has been any hazardous waste contamination of any site, including any claims for damages,fines or other penalties arising there from,where such hazardous waste(in any form)was brought onto the site by,at the direction of, or for use by SUBCONTRACTOR,or any person working by, under or through SUBCONTRACTOR. CONTRACTOR may elect to defend itself, in which event, SUBCONTRACTOR shall be responsible for reimbursing CONTRACTOR for all costs and attorneys fees incurred, in addition to any judgments entered in such action or proceeding. CONTRACTOR may make any payment,that is SUBCONTRACTOR's responsibility under this section, and deduct the amount of such payment from any moneys due,or to become due to SUBCONTRACTOR. 7. Title to Materials, Risk of Loss. All materials delivered by or on account of SUBCONTRACTOR to any site,on which SUBCONTRACTOR performs services,for,or at the directions of CONTRACTOR,shall become the property of CONTRACTOR as delivered to such site. However SUBCONTRACTOR shall bear the risk, and be responsible for replacement and reconstruction of all materials and work damaged or lost by fire,theft, and/or vandalism, until CONTRACTOR has accepted SUBCONTRACTOR's completed performance of all work to be performed at any site on which SUBCONTRACTOR performs work. SUBCONTRACTOR shall repossess himself of any surplus remaining at a site after.CONTRACTOR has accepted SUBCONTRACTOR's completed performance of all work to be performed at such site. All scaffolding,apparatus,ways,works, machinery and plans brought by SUBCONTRACTOR onto any site, shall be SUBCONTRACTOR's and shall be removed by SUBCONTRACTOR upon completion of all performance due from SUBCONTRACTOR at such site; provided that if SUBCONTRACTOR defaults in, or fails to complete such performance,CONTRACTOR and any person working for or through CONTRACTOR, may use said scaffolding,apparatus,ways,works, machinery and plans,to complete the performance due from SUBCONTRACTOR,without cost or liability for use, loss, damage or depreciation thereto. 8. Amount and Timing of Payments to SUBCOINTRACTOR. a) SUBCONTRACTOR agrees to accept the amount set forth in Exhibit E—Schedule of Values, plus pre-approved written change orders and pre-approved written purchase orders,as full compensation for the work performed and material provided pursuant to this Agreement. At the sole discretion of the CONTRACTOR,charges for repairs or work done by other subcontractors due to poor performance or failure to timely perform by the initial SUBCONTRACTOR, or damage caused by SUBCONTRACTOR, shall be deducted from any moneys due or to become due to SUBCONTRACTOR. b) No change order or purchase order will be accepted for payment by CONTRACTOR unless agreed to in writing by CONTRACTOR prior to the work subject to the change order or purchase order being performed by SUBCONTRACTOR. c) CONTRACTOR shall have no obligation to pay any invoice from SUBCONTRACTOR, including but not limited to invoices for change orders or purchase orders, unless SUBCONTRACTOR submits the invoice for the work to the CONTRACTOR within thirty(30)days following completion of the work. d) CONTRACTOR has no obligation to accept or approve SUBCONTRACTOR's requests for price increases. No price increase will be requested by SUBCONTRACTOR for work performed on sold jobs where bid amounts and change order amounts have been previously agreed upon between the SUBCONTRACTOR and CONTRACTOR. No price increases will be requested by SUBCONTRACTOR for any reason,including commodity price increases,within six(6) months following agreement and approval of the Schedule of Values set forth on Exhibit E. e) Payments for CONTRACTOR approved work completed by the 25th day of the month with billing documents received by the CONTRACTOR's Accounting Department by 5:00pm the 25th day of said month,will be made approximately the 10th day of the following month provided that all invoicing requirements are satisfied.The invoices requirements are as follows: 1)Completed application for payment,statement of contract, and applicable lien releases for completed CONTRACTOR approved work must be received within 45 days from GIPUBLIGPROJECTS\Pipers BlufflAcquistion and OevelopmenrcontractsU.andscape MaintenenceLLeonardl-Pipers Bluff Subcontract Agreement Template(v-2-05-13).doc Conner Homes at Piper's Bluff, LLC Page 5 of 9 9/12/2014 INITIALS completion of work.2)All applicable sales tax should be charged on all jobs, unless otherwise specified. 3) Refer to billing procedures in the new vendor packet for additional billing information. Notwithstanding any other provision in this Agreement, CONTRACTOR has no obligation to pay SUBCONTRACTOR unless and until SUBCONTRACTOR has fully complied with all terms of this Agreement. f) All disputes related to said invoice must be resolved between SUBCONTRACTOR and CONTRACTOR within 60 days of completion of work. If invoicing disputes are not resolved within 60 days of completion of said work, the CONTRACTOR reserves the right to pay only that portion of the invoice,which meets the requirements set forth in this Agreement. g) If a dispute arises between the CONTRACTOR and SUBCONTRACTOR relating to the scope of the SUBCONTRACTOR's, payment for the SUBCONTRACTOR's work, or this Agreement while the SUBCONTRACTOR is performing its work pursuant to this Agreement,the SUBCONTRACTOR shall continue to meet its contractual obligations pursuant to this Agreement while the dispute is resolved concurrently. 9. Lien Releases.As a prerequisite for any payment, SUBCONTRACTOR shall provide, in a form satisfactory to the CONTRACTOR, partial lien releases, claim waivers and affidavits of payment from SUBCONTRACTOR, its sub-tier subcontractors and suppliers of any tier,for the completed portion of SUBCONTRACTOR's Work. CONTRACTOR may from time-to-time require,and SUBCONTRACTOR shall promptly,provide, a statement in writing setting forthwhatamounts, if any,are due or payable by SUBCONTRACTOR to third parties for labor,fringe benefits,taxes, supplies, materials, equipment or other proper charges against the Work in connection with or arising out of this Agreement. Any monies earned by the SUBCONTRACTOR, until paid to the SUBCONTRACTOR by the CONTRACTOR, shall be considered held by the CONTRACTOR without interest in trust for the benefit of laborers, material men, suppliers, equipment providers and other creditors who have or assert claims arising out of or in connection with the Work. Monies paid to the SUBCONTRACTOR are acknowledged by the SUBCONTRACTOR to be held by it in trust forthe benefit of laborers, materialmen, suppliers, equipment suppliers and other creditors who have a right to payment in connection with the Work and the SUBCONTRACTOR shall not use any of the funds paid by the CONTRACTOR until it has paid or otherwise satisfied the claims of such creditors. The CONTRACTOR reserves the right to make payment directly to such creditors of the SUBCONTRACTOR as may assert or have the right to assert such claims and the SUBCONTRACTOR assents to such payment by the CONTRACTOR. The amount of such payment shall be deducted by the CONTRACTOR from any monies earned or due the SUBCONTRACTOR. The SUBCONTRACTOR waives any claim against the CONTRACTOR on account of the CONTRACTOR having made such payment, provided only that the CONTRACTOR, in making such payment, acted in good faith. 10. SUBCONTRACTOR's Warranty. SUBCONTRACTOR warrants all work for a minimum of two(2)years and warrants against all penetrations from fasteners to water supply lines,drain lines and natural gas supply lines for two years from the date of occupancy or as stated within the specifications: All corrections to the work shall be made upon notification to the SUBCONTRACTOR. SUBCONTRACTOR warrants that SUBCONTRACTOR and all persons performing by, under or through SUBCONTRACTOR shall be in full compliance with all warranties, promises, and representations contained in this Agreement,and at all times during the term of this Agreement. 11. Indemnification and Express Waiver of Washington's Workers Compensation Immunity. a) SUBCONTRACTOR agrees to defend; indemnify, and hold CONTRACTOR harmless from any and all claims, demands, losses, damages, and liabilities to or by third parties arising from, resulting from, or connected with services and work performed or to be performed and/or material provided under this Agreement by SUBCONTRACTOR or SUBCONTRACTOR's agents, employees, and lower-tier subcontractors and suppliers of any tier, even though such claims may prove to be false, groundless,or fraudulent,to the fullest extent permitted by law and subject only to the limitations provided below. b) SUBCONTRACTOR's duty to indemnify, including the cost and duty to defend, and hold CONTRACTOR harmless shall include, as to all claims, demands,losses, liability, and warranty claims to which it applies, CONTRACTOR's personnel-related costs, overhead, experts'fees, actual attorneys'fees, court costs, all related expenses, including all fees and costs of any kind incurred to enforce and establish rights under this indemnification provision and any subcontract agreement. This Agreement is intended to provide the broadest indemnity rights available and allowed under Washington Law. G:IPUBUCIPROJECTSIPipers BlufflAcquislion and DevelopmenttConbacls\andscape MalntenanceLLeonardi-Pipers Bluff SubcontredAgreement Template(v-2-05-13).doc Conner Homes at Piper's Bluff, LLC Page 6 of 9 9/12/2014 INITIALS c) SUBCONTRACTOR's duty to indemnify CONTRACTOR, including the duty and cost to defend, shall not apply to liability for damages arising out of bodily injury to persons or damages to property caused by, or resultingfrom,the sole negligence of CONTRACTOR, or CONTRACTOR's agent or employees. d) SUBCONTRACTOR's duty to indemnify CONTRACTOR, including the duty and cost to defend, from liability fordamagesarisingoutof, related to, or connected with in any way bodily injury to persons or damages to property caused by or resulting from the concurrent negligence of SUBCONTRACTOR or SUBCONTRACTOR's agents or employees, or SUBCONTRACTOR'S sub-tier subcontractors or the sub-tier subcontractor's agents or employees,or SUBCONTRACTOR's suppliers or the supplier's agents or employees, and CONTRACTOR or CONTRACTOR's agents or employees shall apply only to the extent of the negligence of SUBCONTRACTOR or SUBCONTRACTOR's agents or employees,or SUBCONTRACTOR's sub-tier subcontractors and suppliers,and their agents or employees. e) The use of the term"negligence"in this Agreement does not limit SUBCONTRACTOR's duty to defend, indemnify,and hold CONTRACTOR harmless to only tort-based claims. SUBCONTRACTOR's duty to defend, indemnify,and hold CONTRACTOR harmless includes any and all claims,demands, and causes of action whether based in tort, contract,statute, or equity, including claims made against CONTRACTOR alleging violations of the Washington Condominium Act,and applies to claims for attorneys'fees sought thereunder, subject to the limitations set forth above. f) SUBCONTRACTOR further agrees to diefend, indemnify, and hold CONTRACTOR harmless from all OSHA, WISHA, and Employer Liability Law claims, demands, proceedings,violations, penalties, assessments, or fines that arise out of or relate to SUBCONTRACTOR's failure to comply with any safety related laws, ordinances, rules, regulations, orders, payment of its;employees'workers compensation premiums, or its obligations hereunder. The indemnity obligation of SUBCONTRACTOR shall include all costs,expenses, and the actual attorneys'fees incurred by CONTRACTOR and all costs and attorneys'fees incurred to enforce and establish rights under this indemnification provision and that of this Agreement. g) SUBCONTRACTOR agrees that its indemnity obligations under this Agreement survive any limitation imposed by any statute of repose or limitation and!SUBCONTRACTOR hereby waives any and all defenses under any statute of repose or limitation. Further, SUBCONTRACTOR agrees that any statute.of limitation on a claim by CONTRACTOR pursuant to this Agreement shall not begin to run until CONTRACTOR discovers SUBCONTRACTOR has breached either its duty to defend or its duty to indemnify,whichever occurs first. h) THE PARTIES HAVE SEPARATELY AND MUTUALLY NEGOTIATED THE FOLLOWING CONTRACTUAL PROVISION TO APPLY UNDER THIS AGREEMENT THAT IS ISSUED AND ENTERED INTO BY THE PARTIES,AND IT SHALL BE DEEMED INCORPORATED HEREIN. FOR PURPOSES OF THIS INDEMNIFICATION ONLY,SUBCONTRACTOR SPECIFICALLY AND EXPRESSLY WAIVES ANY IMMUNITY THAT MAY BE GRANTED TO SUBCONTRACTOR UNDER THE WASHINGTON STATE INDUSTRIAL INSURANCE ACT,TITLE 51 RCW, AND ALL OTHER APPLICABLE INDUSTRIAL INSURANCE/WORKMAN'S COMPENSATION ACTS OR THEIR EQUIVALENT IN THE APPLICABLE JURISDICTION. Further,the indemnification obligation under this Agreement shall not be limited in any way by any limitation of the amount or type of damages, compensation, benefits payable to or for any third party under workers'compensation acts,disability benefit acts, or other employee benefit acts; PROVIDED SUBCONTRACTOR's waiver of immunity by the provisions of this paragraph extends only to claims against SUBCONTRACTOR by CONTRACTOR and does not include, or extend to,any claims by SUBCONTRACTOR's employees directly against SUBCONTRACTOR. SUBCONTRACTOR's duty to defend, indemnify,and hold CONTRACTOR harmless, as to all claims, demands, losses, liabilities, and warranty claims shall include CONTRACTOR's personnel related costs, reasonable attorneys'fees, court costs,and related expenses. CONTRACTOR and SUBCONTRACTOR hereby certify that these indemnification provisions were negotiated by the parties and agreed to by the parties. 12. Not a Partnership or Joint Venture. Nothing contained herein shall constitute or be asserted to constitute either party as the partner,joint venturer,or agent of the other,for any purpose whatsoever.' 13. Remedies Cumulative. All of the remedies specified in any of the separate provisions of this Agreement are cumulative, and are in addition to any other remedies either party may have at law or in equity. 14. This Agreement shall be interpreted in accordance with the laws of the State of Washington. G:PUBLICIPROJECTs%Piper's BlufMcquistion and Development 1Contrectstendscape MalntenenceLLeonardi-Piper's Bluff Subcontract Agreement Template(v-2-05-13).doc Conner Homes at Piper's Bluff, LLC Page 7 of 9 9/12/2014 INITIALS 4 15. Termination. Notwithstanding any other provision herein, CONTRACTOR may,with or without cause and at any time, immediately terminate this Agreement,in whole or in part, by written notice to the SUBCONTRACTOR. Termination with cause includes—but is not limited to—SUBCONTRACTOR failing to timely fulfill any of its obligations pursuant to this Agreement, allowing subcontractor or supplier liens to be filed,failing to perform work pursuant to the schedule,failing to comply with CONTRACTOR requests, submitting an inaccurate pay application, or failing to maintain proper insurance and licenses. In the event CONTRACTOR terminates this agreement for cause, SUBCONTRACTOR shall have no right to payment, other than for work performed within the agreed upon scope of work and pre-approved written change orders, completed through the date of termination, less any damages suffered by CONTRACTOR as determined by CONTRACTOR, and payment shall not be due to SUBCONTRACTOR unless and until SUBCONTRACTOR, provides the lien release required for payment and is otherwise in compliance with this Agreement. In the event CONTRACTOR terminates the agreement without cause, the Subcontractor shall be entitled to be paid the sum of any pay applications pending at the time of termination, subject to the terms of this Agreement, plus its work in progress, less any damages suffered by CONTRACTOR. Work in progress is defined as the SUBCONTRACTOR'S actual direct costs incurred for labor,materials and equipment provided since the SUBCONTRACTOR'S last pay application for work performed within the approved scope of work and pre-approved written change orders and prior to the effective date of termination, plus ten percent 10%) of such work in progress costs as an allowance for the SUBCONTRACTOR'S overhead and profit. SUBCONTRACTOR shall not be entitled to any other costs, damages or allowances for overhead and profit on work not performed. 16. Binding Arbitration. In the event CONTRACTOR and SUBCONTRACTOR cannot resolve any dispute between them concerning this Agreement, except as set forth in paragraph 16 below, shall be resolved through binding arbitration administered by the American Arbitration Association (AAA)under its Construction Industry Arbitration Rules, unless the parties mutually agree otherwise. In the event the dispute involves,claims of$75,000.00 or less, the dispute shall be decided by the arbitrator pursuant to the AAA Fast Track procedures. In the event the parties mutually agree to use a arbitrator other than through AAA,the parties shall cooperate in the selection of an arbitrator,and if they cannot agree then each shall select one arbitrator who has arbitrated at least 25 arbitrations of residential construction.related matters in the King,Snohomish and/or Pierce County area(paying any fee charged by such arbitrator)and the two arbitrators so selected shall select the arbitrator who shall arbitrate the matter. The arbitrator selected shall have not less than the above qualifications. The arbitrator shall permit reasonable discovery,with the goal being prompt,efficient and economical resolution of the dispute. An arbitration award may be filed with a court of competent jurisdiction with the effect of a final judgment. The party initiating the arbitration proceeding shall pay the initial filing fee. Any arbitration fees and costs incurred after the initial filing shall be divided and paid equally by each party,and such payment shall be made within five(5)business days of the arbitrator's billing for same. The parties agree that the authority to decide questions of arbitrability and whether a particular cause of action or claim is subject to binding arbitration consistent with the terms of this Agreement shall rest entirely with the arbitrator. 17. In the event of a dispute between CONTRACTOR and other parties that directly or indirectly involve the work performed or to be performed by SUBCONTRACTOR, SUBCONTRACTOR agrees to be bound to CONTRACTOR and CONTRACTOR agrees to be bound to SUBCONTRACTOR to the same extent that CONTRACTOR is bound to the other party concerning any binding arbitration procedures. 18. If any provision of this Agreement is deemed unlawful or unenforceable, such provision shall be fully severable, and the remainder of this Agreement shall be in full force and effect with the automatic addition of a provision as similar in terms to such illegal or unenforceable provision as may be possible to make such provision legal and enforceable. 19. For value received,the person who signs this Agreement for SUBCONTRACTOR represents and warrants that it's binding SUBCONTRACTOR to this Agreement and that he possesses the authority to bind SUBCONTRACTOR to these terms. If SUBCONTRACTOR is incorporated,the person signing for it becomes individually liable for SUBCONTRACTOR's obligations under this Agreement waives presentment,demand, protest, binds himself as principal, not as surety,and agrees to remain bound until released in writing by CONTRACTOR. It is understood by SUBCONTRACTOR and the person signing for it that CONTRACTOR would not enter into this Agreement without G:IPUBLICIPROJECTSIPiper's BIufMcquis5on and DevelopmenttContractslandscape MaintenanceLLeonard(-Piper's Bluff Subcontract Agreement Template(v-2-O5-13).doc Conner Homes at Piper's Bluff, LLC Page 8 of 9 9/12/2014 INITIALS//14"..r)k(11 the signor's assumption of liabIiiy.The signer for SUBCONTRACTOR does so in his capacity as managing agentsforthemaritalcommunity, if any. 20. BY SIGNING IN THE SPACE PROVIDED BELOW, THE UNDERSIGNED HEREBY CERTIFY THAT THE PARAGRAPH"INDEMNIFICATION AND EXPRESS WAIVER OF WASHINGTON'S WORKERS COMPENSATION IMMUNITY"WAS MUTUALLY NEGOTIATED, SUBC4 T C OR eonardi Landscaping,Inc. Conner Homes at Piper's Bluff, LLC,a Washington Limited Liability Company By Y I. By Authorized age G' Date Signed S( Date signed yriy Print Name L 'l Print Name — Mike-1 z j1443nTitleVr- I c 4. ' C. 04•en.>Trtle --Co ritette Mager Contractor's License - j Address p,o,, ),. X 61 City, State,Zip/I C(\c-O-€_ 'V.+.A Phone: lita if 7 6 I ` c I 1 k Email' e3 `A CI-- 1 Cis G)GC: io'Lc5 Accounting Contact( " )(se 1- ti G \ G:IPUBLICIPROJECTS1Pipers Bluff Acquisgon and DevelopmentlContractslLandscape MalntenancelLeonardi-Pipers Bluff Subcontract Agreement Template(v-2-05-73).doc Conner Homes at Piper's Bluff, LLC Page 9 of 9 9/12/2014 INITIALS r L, I EXHIBIT A Conner Homes at Piper's Bluff, LLC. SCOPE OF WORK 1. Contractor shall perform all work for wetland maintenance per supplemental critical area restoration plans and specifications by Sewall Wetland Consulting, Inc.dated 5/19/2014.The Work shall be done in accordance with the additional Conner Performance Standards and Specifications,and to all applicable standards and specifications. 2. Contractor shall provide any materials necessary for the control of all noxious weed species. Said species shall be controlled to less than 10%coverage and minimized to the best ability of the contractor at all times. 3. Contractor shall provide for removal and disposal of all waste associated with the work described in this contract. Conner Homes at Piper's Bluff,LLC. 9/12/2014 EXHIBIT A I Page 1 INITIALS A PORTION OF NORTHEAST QUARTER SECTION OF SECTION 10,TOWNSHIP 23 NORTH,RANGE 5 EAST,W.M.-CITY OF RENTON,WASHINGTON a P1+,. e R:..-..... SEEDRARI-I: . l —. V I s I. i1 I..:,. .I. ill r , r Y0000o0•l0'IL',^I••oV i- sit E I ' L I Q Ei0000 :i q'o: Ili' , i, --- I r----'"fh.`r;- --- i I' - -- i- lA tie'ao :o•o,j . , 11. g, h III till 1 lig I -1 ,,L" ,2 3 I 4'•._ I 6... 8\7 'L.I I -]^ w'. ' / $ .` ,Q: src 3' 1 1 L • `J 1 I I'1 1-........ A. I 8 I' mak 7f• TRALT B :I I 7 2FI1IitIIII -. 1 I L J L _ - 1'LI.I I \ 1 \1 ', I '"a a0.'a`-':' 2w"A\'io., , vt I . \ I 11• 1 ITi' ` i1. 1.1 TIT ir II bs ' I, s;iw u- ' I 1;• II1 I. i r r ®h1xl'P,?' I ,I I I. I1. ... 'I 1I i I. 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MUSTRE HWY EEINYWITNE CITY OF AONON,INE OWNER ANOTMEMN L CONSROSNO%NUS WEEDS WOMMANTIN EE MDARMIS1R2T• DESIGNER L ACOR OGINESlpPINW[D DMWWtl WIREE ONMEIOp SIR WHENEVER S, WSTALLNATNE MASON 0R DETAR2-LOETML2-2,AND DISARM D4try. RsIOpNUMBCR12.195 CONSTIIULTONOMrAAPPROVED DD 0. INSTALLMNCN ISR OETARR. DESIGNEE: ES CALL 2 WORKING DAYS OMVMR:MC A.TRCONTRACTOR SHALL IN RESPONSIEIE FOR PRONDINOADEQUAR S, RENN-N AND DEMOSILIYMOM SIRCHM EY: ESSEROVARDS,SAFRY DLVICES,PROTMNE EQNOVIDIN A C ALAND ANY SHEET INDEX BEFORE YOU DIG OINIR NEEDED ACTIONS TO IROTECTTNS UtE,N1ALTN,ANO SARR OFTNi E. REQUEST FROM AND ATTEND FINALIIOPECTWN W M°WM 1-B00-424-5555 PUEUCAND TO PROMS PROPIRIS DI CONNECTION WONT°IERORMANCE MIT KOLOU OSSRUrRON OF Mt WORE MOWN ON THESE DRAWINGS.ANY WORE WMN TNETMVIIED Y. 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DULDITGONGI W4nv5W4 1GAIONTAMEUTD 47 =NOTEMOWOF=NOMUWEDMC=1555.8423RUMER.50013.51E01005 1 FEUDING 50Diti,880 MINS 118111T FOLLOWING=MODS!I)HAND 11121Nacall 9.,„.,_, s , 91.;79N1,i ',83,'c ...(01 •4''••''' . NOM 4.081/0.4813.21,19 STACINO RE DUREX MGT 0817.1972051=6.3 171 GROUPS Di ITO 7. 2)MANUALLTDUTIM UM 618013115,LOMAT.AND/08 CUM=DIM OUT 9.1.-•2 r7 k '7,9.. 9' ',1-117219/1 "• 9DOOTCROWN5.0101,9004 ROOTS ETHAN°WINO CAW 1218110C1.RUM OE APPTOVET,EQUAL 1,11. Q MUMS LL. 5 3. MANI MATILIAIQUAUTTAND=DAME MALL TEMPERED Di PIAN 01310NER O. : 99 171 510=12310GE OulLTOMPTA 10 Di•MO 40 2•OCTRIANDLULESPAC180 11 0.4 719311113 MISTAUATION. 1...'. . . "..A76' 'k.l.'"?'''4 0 i -s- • 4. PLANT LODA110113 380171NATELIPEOXIMATE.80105T PLEUTLEIC871091=0 02.11.,.t L .....,, .,1I.',./..7.ii, . '• ,(>1.', E. man M o in ACCOMEIDDATE ME 8081=0713 8.110/09 PIN MAN DELDNERAT TIM Os I F Lu DISTAUATON. v”...-. ' --,:; .,, ,,,,,, V% . ,i '..t•*!:,i1-!tk Agttre.r---. 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' 17•..• (2) PLANT SCHEDULE 67„ g 05,4735,•VIETUU10/578111,1 EMU!pow=OULU 1, .. 9, I, ..• NO SCALE Z 2' MT SE•WETLAND u. g MAUI lint 1-•--•-F-201578130OIN5I10T3015ou0E 0 VI Z-I Q a' 0 ett .4? •'. • —.., ".---... :• •, ., z „.c: 5:1 ,R ,Q iQ A 5 u 2r ,/ 1,508 Si•RESTONITICUI DESIGN fORTE115 ATM 011=3.SZE VMS OLUTI,17111.41031 F 3: QA--Oytlf RESIDRATION RAN'LA113.T.AIVAIDO,N 07/13/2013 81'MEWL ED MI 0 0..3PERWONG07_ PIANTSCHEDULE • / • / • / • / • / in 111 0 0 0 3:£ 3:1 a' tf 1:f Ai' 15 b 1. 1 B0PLANTINGPLAN PLANT SPACING SCHEMATIC FOR WILLOW STAKES AND EMERGENT PLUGS50111•1= SCME•ASSMOWN 3° IIIIRANTD1STAUATIONMOTO I 1 g1. ErtaCH MALL BEA COMMERCUUSAVMAKE MUIEN,WORMWOOD OWL 018118DVED EQUAL DEMO MOM THE 0111,7083 OF 4.UVE5170(1Ts , 1 CI TEEL 119.4=1E5,STEM EMMA=MEDI=ITSNAll.BE 01195.0 50 TUT A 1,910.1DM OE 957ERCENTOt TR 198717181.51E8=n5 g1255111AN2.9 MOM AND A NUTINIUM OF 20 PEICEN1 MEM=LESS TUN 1009 7ALMCH 58811NOTCONTAIN NE501.17.81.71,On T10I, rig.- W'- GOMB COLIPOUNDS DI 4VMM=TRATWOUID 01 DETAIMENTIUTO PUMMEL 7=1/2195118DADT TT DERIVED F5128151U1,12OOD=AND 58711NOTCONTAIN SOIL NOD NU==WE 6 PIOTACCUTAllE.1=1.8100915T 88=08 COMME081 TREE Mr STAIMETT=212187 1 1 21114511710COMANIESAEIACCE/TAKI MATEELASOUREIL TO GROUND SURFACE WITH suns por8798a DE a1 1111InACET09179=Dm= T. 1001700=1111 MI r 4,44.-•,,v v•v•,..'Ail s-.•• ,k,*.3.74,001,MITA SOL WIRE 4, .,•\45,,,,,,.‘9.41,9WMACKTOMOS= SHOULD 11E=W. 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PM[FMULOOTHROUGHOUT ENHANCEMENT AREAS IO A MINIMUM APPLIED gTMLM.IIIELOW1.THtGOAIS ANDOMECTN[S Of THIS MANOR THE MSULTS°IMCHCOMIWHCE MONITORING ASSESSMENT SMLLDE MESE DRAWINGS. DEPTH TO TNOIEL MULCH SHALL NOTI000ISTEMS OE INSTALLED HAMS. CONSIDEREDAONIVIu WHEN THE PERFORMANCE STANDARDS ME SATISFIED. SUMMARIZED INA WRITTEN WORE AHD SUBMFLTEDTO ME OTO,ASHTON CONSEAVAIION GRADEPLANTSTOC[IS NOTACCERMLE FOR USE 5 ANOLATM/A MIVEMBER lO OF MIRPE(IMAMS MONITORING TEM. AIL LYIRESHALLCONFOAM TO AU AMICABLE CODM,LAWLAND PARER;PAMNIGNA ACCEPTANCE COMRIANC[MONHORW°HAN ORDINANCES.SALVAGED PIANISM NOT ACCEPTANT(MUSE. VCONTNGENCYHANAMACOMLIRIONOFTECPLANTNSTMIATONWORECOVEREDDYTGSE ASAUIIT CONTRACTOR OEM FURNGM ALL LMTOWLS.EDVUN[M,MNOR,ANO /2 MNt! 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CMALGROVECON31.47,30 SUP.ARN°RISTONPR,OA APPROVED iHVIDALTHEASAURTMALTSUMMAARETIECOMPLETEDWORLANDANTPLANIOADDRESSTHEDFFICIELOYlHSI.CONTINGENCE PLANSCAN NOWELL RUT EQUALMILO(SNLLL"OTCOMAMIMSTN,TANNIN,OA OMER CDMHOU"°S /MOST AMIMEMNC[ AUAATIONS MOM THE APPROVED VERSION OF THIS PLAN.IN ADDITION,THE ARE NOT LIMITED EMOTE POLLOWIMATSOS: MTHO SHALL RECOMPUTED AT PERSOSERPERIENCED IN ME CAITIGLMG IN POMMIESTMTWRUIO If DETRIMENTALTO/UMIIFL MOIUE SHALL F ASBURT SNAIL CONTAIN BASELINE M°NIIORINa BATAAN°P"oIOGRMIG TOWTDN Won SHowN ON TTETE OOwora. NOSBE DEAMD MOM SUMP GGNDINGSAND RCLINOTWNTAIN ROTE NOG LONTMCIOR SHIM MONTAN MINTED MLMUNRLGWMNTEE PERIOD LSi }RipFORGOEMEMOAMA1. ADDITIONAL PLANT WSTA1UTIOM RILL OR EQUAL OTACTPTMLL SUBJECT TO REVIEW Br ERMAN ACCEPTANCE 6GNE".MUMENANCCSIMLLINUVOL WEEDING AROUNDIHE OF 1. EAMON CONTROL( CONTRACTOR SHALL AE000NIIITIMT ACTUAL SRECONDILTONSIMTVAT DFSIGNFR IDCALARRORGTANDIOACOMMLROALIOEETMMAING RVIACAMITALLED PUNTS.FAWN OF INSTALLED PIA"6, UNI VI ; BAfEUNEMONRORIN°MMHO°OLOMI - 3. PIEUNORT PROTECTION; WHIM SEASON ANIMA TM OFTFI°L COMPANIES MAY BE ALTERMTYE ALYFRMLE MEMO SOURCE. REIMCEMFNI OF PUNTS EMT MPW WIDE IN DEITIES.CONTROL IS 4,', PERMANENT COMPLIANCFUHCMORING PLOTS OR TAAU.CS SHALL 4. MODIFICATION TO THEOAGALION AMMO A"D/03 REQUIRED OMIT FOLLOWING SWIM(AAOrWAEOU3 AM PC.NORMS DI' B LL CTh TODOCU ENTVICMONROADGDATASNALLBE S. PLANT U il0 °FETS6Rif11S TRLSQLQUANLIR.ANDIOGION CONTRACTOR WEEDS II"MUpINO NOFLRIGUMI[D T•AN°TNOAN)US WLEOSI IOLNMED i^' EACH PLANTING MA.COWGLTATGNOMMM[PLOiSSWTIDF CONORIOSWNEN[CMPIETNGTSWDRRSNOWNONIHEFDMWINGL IAMB ER[MION ONTHE LATESTOVIDEDfONTAC3USSUITPO MAMMANCE N 7II IIIEAANSGNTHALSISCOMWNCEMONILYTO1ACURSORSUCH AMAUyOCGMCEu!EMILWHUU DESUBMERATO THE OWUDICOvUu.UNFONR 3"ALLONCICPOORAM DEVELOPED STICPTSOINDETOTANCF IECIFKMAANSWOODTLLNFEGUIUIS!CPAMC Y TOSHRUACNMRLYSAMpU LANVMTl10FANVIO LATHEcITYOOENCTOMACIMCSSPCC.O ON AN P!OGMLSTR,ICSES.O="STOW°TECTALLMMIU PA RRURFACES M Al WANT INSTALLATION MALIETERIEWIRMERITOOGMMAN.AMAD!0N.UCRCAU MALL BE APPRMONENTWISHANTTCIESIHCEANNTCCI.sNHUCIMEM APPPUVCDWHTDLGENCE P"101'f°MLCOMPETED MIME0 DM. AN CUINGWOPO.FIELD LONIURESWDEPTH 0SMAND ADODUAUUMACE MMM OWNESPSIORTOFTSILMC AMIVNTENANRFGNNN4NEAPPRINfOREM U.DATE1WDW DATAES COSOOCSWNSHAL BE NOXIOUS TW APPROVED CDCONTAA LWROTECE PUN OE RETONMaEATENDNE0MY AANCU IP MONOMIALDIAGREEL°IoGTEVEANT RTOOMMECSMSUTOS WOPO. RDIFC3 SYI GFNFMI SI/vT,o rP OWNER IRIORlO65LLVKf OFIR0V6GNAl AELEITANq f , l 2WITHICMTOCUN[FOlOOATACOIIECTIONS HCOM CONSISTENT MIME RMEtAOO CORSEOROFAISONMAT OISENOTNE[CWWNCE AIIUNDERGMUNO SNIQS/GOATO COMMCNONEMOAIL AS DOING[ Arm I l J- WITHTMTOURINERFOR•ANNUAL COM/MNCF MONITORING.. MONITORING PERIOD FOR THE RETOMTIONWORL TOUTUITE INCURRED OAAGSING FROMPER CONTMCTSHALL DE PAID CT U1TARA OF POINT MATERIALS MAIL OCCUR RETWEMLMOOC••Fat3_ 1 PEAMMEMIHOIOLODFESMLLRCCSTMIDHNAND CONTRACTOR ANOYV•wL• T00UEUIOF PLANT PR°NREMEMORSITCONNIOS MAT 61GOAMNIEC I IrIPHOIOGIWHSSHALLOETAEENTODUMMER,REPRESENTATIVE MAIMENANCZ PLAN REQUIRELYSTAIISIIAN DURINGIIITERMTNE DALE,WRITTEN I{COMMONS MOM EACH ARMING AMA AU MIAS OFWOAS SMLLBE REROERN,NGT,AND ORDERLY AT ALL TALES• AUTOMATION SMLL REMAINED FROM GYNM nom TO IMNT • L1 MORAL ENS FICTION PROMO A GENEAALOVIIMOR INofTHEMAINTENANCE ARALLPAVED FMME TO RECLEANED DARPoYLLOWMG WOOL E NTAMTIO TMPGRON OFIASEIINE MONITORING RE *N MOGATASECLSMWELL "LRSSAMTOENSURE MESULCESS STANDARDS MTMMSHED MA THIS HAN AA[ pGNE SHALL.ROIMICGUAM"FFED FOR°NESFM A0AU6'CPFE03 of FRAM.PHOTO PONES SHOE RESHo'MN ON MIAS-BM DM MWWGS. AOOEVEO.• GTN SHALL RE NORR IN WRITIN GNG OF DMAILDS coma"OR OB PUNT MATERIAL UISTALLATONTIMUMOTOOTX DURING M[METING • ANOWOAAAIAPEMP.TIE OURRARIEF PERIOD MGM AT THE DATE OF NE WITHIN TIM DMWINDSMD/°A SITE L*N°RI°NSRTM WOM ARISING WEATHER DAWHEN TNT GIIDU"O600SSC'AMER OA EACFSSNELYWR.PLANT PROV6roMLACCEPTANCE AND SHALL EMEND FM ONE TEAR. TMAHULTAND MOM DATA SHALL BE SVIRED TO TO NORGI6WIM TDC°NL FROM fMORETTI DO SO MALL DE DOMATTHECONTRACI°°T MPEML MAIM.MMNG FROZEN ADOTMLLS MALL NOTRE INSTAL/20 UNTIL COT OF RENTON ND LATTA TARN EO DAYS MOM MI DATE TATTE WORT CONDITIONS ME SuOL TATPUNB ARE FAULT REMOVED FROM(DNWNEn TM GUARANTEE AFOUIW13C1E3 SHALL e6 AOPIG•U TO ANTMOWWG SHOWN MUMS PLAN HAS BEEN COMPLETED. FOIPWTNO IUTTWMLLATBN AND ATREGULAR INTERVALS DOOM THE PRIM TO START OF ARMORRCONTMCSOA SMLLREQUETTAND ATTEND A SURVIVE WHWH LIANTS OVUM FINDWHIOIOESRPECHD TO COMPWNMM°NRMVTG MOO.NOIOUS WEED CONTROL SNAIL OCCUR ON A PAMOSTRUCTION CONFERENCE WITH OWNER ANT MATERIALSTDRED0N-21 SALE REORGANIZED IN ROWS AND SURVIVE AND ANT°EEOAWTY00.CAUSE°FOGM WHICH COULD BF ANNUALCOMPLMNCF MONITORING SPOT TREATMENT WM MOM TIM DMZ B°RERAREA MAORMNED AND PR°TEME°ATNO MORIONALCOT. ATTRIBOTEO TO,OR MILTED MIA F MLA TOMEG*NMAII USWUKIRLHOE.CONIMCMA SHALLAMM I,' IO ASNED PESO.THIS GUAM"TEES"ALLNOT APPLY TO KANTIOSSFSDU 2 FOLLOWIGACCEPIMa OF TO ASRLMT 2 THESOIEDFITT OP AENTON,ANNUAL TMGONDG°USWFID MOW SHALL 1220ETIE FOLLOWING:ALL CU65•A•,RAGRANTNG ARTALMIIS N A" UNI1LE IBA FANNER RAGGING SHALL Al IIANTMMTEAGITMTGNNOTIE MOOT MO ONE III DAT AMER ET ALINOM HOHTTQRCO"OLTGM SUCH M FLOAG5,ELY.SSIVIWINOCOMPLIANCEWNROMNOIMILMORCGHIDFORARWDOF LET* SI OM,MO•C NORGUS WFFOSIMCLUOWGNONAMMATEDT•AND TT NOGOP MAWTA°IEDTTROUG"OUTWDM UNTIL FOGLO6PECTIONMOWNER OEPGROML MEMO BETOLURIM OAPHEOWSE Mono DAMAGE°RO°GM.SEVMESACTMA%OAMNORMALMINSMAETEMARE0 LL • WAS ANNUAL COMPLIANCE MONITORING SHALL RECOMPUTED HP A WEEDS)IDENTIFIED ON THE LATEST CNG COUNT NOHDUSWEED LST MAMMARY M ACCORDANCE WITH ACCERED 1GRWIMNML PRACTICES IN MINEOWNER.INSTAL=PUNT MATIMAL3 MEL At MMMAMEDMURIHG ^ C MAIMED PROFESSIONAL AND SMLLCOMPROE A SIRE I"VESTGATGN AND AMANNER SWLTST Nor COMPROM6[1"CHULTH°PT"E PUNT THE GUARANTEE PERIOD IN GENERAL ACCORDANCE WITH TRAM/ROVED I OAEPORTNGTERTHEFOW3WINOINNRVAUNOROUSWEEDCONTROLWORESHALLOMSR3OETHECUTTINGANOREMOVALIRATEMAMMALSMATERIALS,PLANTSTOMOESHALLNOT RE LONGER TAN POUR(*WEEPS MAINTENANCE PWPRCVID[D MNECON-MCSR M•n MOM MIMEO,ALLN° 1ELA00 DSROBSTEMSGNSMNNEM,SNOOTS EN M F LIJ Q3TACOAI3I05AG THC RIISTTEAR"w,LI FOUOW°N PLANT SEED POOL HMNO BOOM AND LIAM PER THE FOLLOWING METHODS,31 MAW OOTAUATUM INANE MATERIALS STORED UNDER TEMPOAAIR'LSNDMONS MALL Fit UPT TUMMA MAT AMMAEREIUCYME"E OFOGO OM/EFEWNO PUNS b, NSTAIPATOM AND 1. HAND MUM% WOTAND MUTCTED FROM ADVCRSEWEATHER CONDITIONS. PRIOR TO TS END OF THE GUAMNTM PERIM M NO ROORGFMLBST. 0 c E2NAFROOAMAYANDAUGUSTONSEPTEMBEROFTHESECONDLWHAMMORROI6MGFMO!IN.IOPPM,ANWOR COMAS. - - 2.1.1 GMEMt- - ---- WHIM AMMO,PLANTS MALL et AMMO WITH T"ESIEGBMD SUM (n 3• /THROUGH FIFTH TARS NEAR IMRVUGN YEAR 3)FOLLOWNG INNAL SPOT TAMTMINT MAU.OCCUR MONTMANO/ORATAGRGTER FREOUENCI,U AMNIMUMOFSWER TO OATS NOTICE SHALL et IROYIOED TO THE OWNER INDICATED IN THE HANTSOIEDNE AN 401321NO TO THE PEARLING M Z;C y y IUNTINSTAWTGN NECESURY,TOCONSAOINOAUIUNEADSPE06TGA MAXIMUM OF TEN(Io) PLANT MVFIMl3QLQUALIIY,AND MAMMY SHALL MEETTIETANDARDS PAGATO PLANT ULSEAUATGN THE OWNER SHAH.REEtPTNFORME°ALTO DEWLSAND SIEOEEATG"SSHOYWN°HITHERDMNLCSSO"UE cc 1 2 •PEIMINTOR UM OMERAGEWMOR FAO(PLANTING AREA UTEDONM6t DAAWWGS. DAOYWOM PROGABS THROUGHOUT PLANT INSTALLATION. OTHERWISE DIRECTED N WORM IrfOMOWNER UNLESS OTHERWISE RLL[ COMPOTE MOTORING SHOUT COMPAOEA QUANNTATIVCAEEMMfNT OF MTt0Vl0.AEPSAMMENTPIANES SHAM RE MADE WRHN SEVIN(T)DM OF d g ^ ESCONDITIONSMHOEACH/UNTING MG FOR PURPOSES OP EVALUATING THE DURING ALLNOGOPWEED CONTROL WORLMWTNG OA NAMING MINE PUNTMAURMLS"ALL SF DP ACCERFD SITE STANDARDS ANDMOPORIGNS HAIR LOCATIONS SMtLOE AS DEHCTED ONE"LFrl•SUMECT TO RELATED NOTIFICATION FROM OWNER CUOMOTEMS PCMORIMNR STARDOMS.ATTNETIMEOFCAOP VEOETAIION SHALL RL MOIUTAD FROM DAMAGE. ASSPECNL°IN AWurAN Mown(FROMT SIOCC LATEST EDRIONI.ALL OMWTMF NOAB.ENSUATWRORM REVIEW ALLIV1SSHA AOOS PRIOR TO w (Y,/ , d. MONITORING ABESSMCNL TM FOLLOWING INFORMATION SHAWN POWS SHALL RECO NORMAIMBITOMILOWTE AND TAODE HCALTR, PLANT MATERIAL INSTALLATION.T3 OWNER REERVAS MP RIONTLOMIUT THE CONTRACTOR HID TIE RIGHT DUPING TEE E0TREWARAATY PERIOD TO a,-,COLLECTED ANDAEhTCORMTNFTO TO PERFORMANCE STANDARDS MIMI MAINTENANCE VEdRUUS.AND MR OF DOWSE INSATEGGS ADULTS,AND LRAM. MLINTTA U° TOIS. IWIIMIE IIANINGAREM POOR TO MITT DNRA UPONTME/RORIRT FOR INSPECTION AMONMTWREGTACNTOF 2MEAMISHEDMATTEHMCOMATERIAL°6TALLATION ANY MATERIAL NEEDING SUCH AND WNIDI*REVILE UNDER WMMNT.TE LL GOP FIANNNG ATM SHALL RE MMNRAMIT AT ALODURURINALS DURING THE MEM=NOMENMTMESIGLL CONFORM TO STANDARD PENIONALM3LEg OWNER SHAM RE WHINED NADVAHIOLIWCV CORRECTIVE TREATMENT ME CONDEMN OFORTALLEDPIANTSIOC[NMIFOI E COMIPNCENOMONNG PLOD TO PROMOTE THE SUCLESSEUI HOMEEDSCN RAMS NOT PRESENT INT EMJ3TI543MLLL POET!AAS KANTIMIMMLR SHALL NOT AI MGM WILHouT Moral SSU ROOTANO/GA MEASURES SOMTO MONDE FOR COWYSRENTALCMS IO MHEMEL 0 Z CS°RVNORSOEPR!SENANDVGOR TH6 RATOMU FOR POOR ESTAISHM[NTAND VOOROUS GROWTH Op THE INSTALLED III1NTSTOCA. ACCR[DSOESIFC NOMMOATUAP IN THE MOM MDT.FOR TREE AND DMNCO PROTECTION.COMAINMUED PLANT MATERIABSHALL0MFLN M CUMTNA WORN SHALL MONA AS TOON AS POTNUAREN DMMMER CONDITGS,OInB[M,WILLBEDTlR LCCVC SHRUSWU6TWIfo1ERONT0l ELW ETTO Y°AT[OE SHALL I[ CO13M3ROSY.IUNTMATAMESMLLNOt II DRG1lFOOAROOT B[COMEAIlAAFNTMOWGTHERAND SMSONPIMUT L_ Q I01 yTHESPICESCOMPOSSDNOFANDMGLCOVEMG6PROVIDEDBYGENERALMAINRNANOSNAILINCLUDEACCURATELYWILEDATTHET°AE OF DTNfIYTO TP SELWHEU LAMED, SYSTEMS DAMAGED.g V Q NATIVE WOODY/IANTTEOES(TAUS AND SHAVE)AND MEN[ WPLANT INV IAMB MALL HAVE DURABLE.MOUE LAMS STATIC THE SLOWWORMIIANTAWAOMENT,RANT,AWAITS FLAFRIHD PLAN 3.. IMPOTENT PUNT SEMIS WORE FLAMED). S. WEEDING MACH PUNTING MIL COMECTSOENIIFIC PLANT NAME. PLANT MATERIALS SHALL RE INSTALLED M IERMPUCMU ROTEANO DMUS SLOWWORM LOCATOR OFEAREITMMLTSAIDIATTMTTIME SHALL BE m T111PMECOMPOSEIO"OEANO AREAL COVERAGE ET A. REMITTING BARR MUCH To MAMMA e•MMMIIM OWED DEPTCTEU ON MIT DRAWING SET.PROVIDED TO OWNER ATUCCMLM MANE MALL RE MARRED WIN I a NOROUS WEED MMES. 1NICLNEE•YW I ONLY. WEIM MART MA3!ASCWLA°1RABU WITH MPAOVAL°FMEOWNEL COLORED SURVM RAMIRO AND SMLL DC GWAMTUD FOR ONE RHEUM Ow L m 3. ME PRUNING OFOSTAP°PIANISM ROAPE DGOPJ.I. AM 3PWITTOPAN INCREASE N TIECONRGR MICE PLANT MMT[RUM ORA ALLIGNBSMLL BE TMOADLONLYWATERED V°TMN IA HMMAFTM OLLOWMG PUOMNG. F•„jCMPUANCEWARMINGME1N000INDUAOM°U VIGOROUS FtMGROWMMD PROPER FOAM MEM/UM MOM THOSE MOOED MU.NOT RIOPIAED.ANTIUNT PLANTING. ADNELT COUNT NVCS°IIYANDMSISSMES OF AIL INSTALLED A. T"CAOGMMCMOP PUNTS THATMPW TO RC IN DOOMS AND/OR SIZEOGNGC MALL DE APPROVED MONNER LROR TO PLANTDEUVEHYTO 62 SPVNOMMP N PANTS000CSMLL3[USED TONAWAR PUNTUIRASCS. DIMMED. MC ALL PUNTS SHAM BE MARREDWR"NOM YIUBM'f RAGGING AFRR HAS STELES VANEOLI°N AND AREALCOVERAGE SHALL RE AMMO S. DMIEC15. VAS.OPTION TITLERANDAM OTHER NON.DECOMPOSING R6TALMON FLAGGING SNAIL BE ATOOD TO TT RUIN STEM LEADER OA ANY INTALUDThM ORSMAIIBTMTIMALADEA TO OA EQUATTOIS Maw USING THE TINE NTMNTIEOINOVE•ETABUSHCD DURING THE DEERS. MANEMAT[SWl SMLLBE PACMOEO WITH CANE FORTIMISRTO THE SITE BRANCH OFTHE AFFECTED PUNT.DEAD OA IMMURED WHIRL COSGEM°OGO AND MUST BE REPLACED AT PS3UILT. e ANCHU SMLL BELIED MCI. ANAL SHALL BE PAORCTf°TO PREVENT NO ADDITIONAL MAROC AEEC Will IIII CONSIDERED DRAG WMENT MAN OIMENSOF LAMREM LAOAASM TMRELAWNPROM GENERAL WORE SMALL MOWINGYDURINGTNOWING M GEPROMEINFINGSYOMBMIDMELPLANT N MSTOGE 3.22 OETALLAT IN MM M FT"ON LEADER HAS 010Ma OR WHEN AMUO/23 PEACEUT° E MOWN ILMNNEM PHOTO POINTS ESTATARSHEO DURNUGT ASWILE SEASON AND/OR AT AMCQUENOONEGVWENECESSMYTO ESPSNAILWETHESDEPROTECTEDMOM LATHERAND PACO N IS DEAD.TO PROVIDE DEAD.PIANO MILe6 CONSILIUM ODCOUREDWNLN OMISSNf°W 2 g PHoI SUCOESRILCTAROHMPNTAm VGORDLOGROWTH OF THE INSTALLED PRAMS ERMVAN Ap1ANTING HOLE MAME APIUGBIE DETAILS SHOWN ONTLETE WOOD IMSDEM REMOVED°AWHE"TIESYALMETNCSAUO WOO. FOURM°GSCOCOMPILWCLWN110WGASSESSMEM,MCHHANTINO AREA ANO/OA1Hf CONTROL OF NOXIOUS WEEDS IUNTIMIFRIAIDEWERYSMLLOTH APPAOPRMTEIYWRH DMWN6 GRIMM ALAS REIN IMPAIRED AT TIE REMOVAL Of ENE°GDWOOD. M AE ASSESSED FOR BMW!OFER05GNSCOUA,AND/OR DEPOSITOR OF INTAWTION TO AVOID COMMPO STOMGCOF WE MATERIALS ONSIFE SS iNE!•IMIIWIAA SL%IAISf AREASO°W,PECAMDOWSIAGMDITS CONOVF PARR PROM CONTOUR TH A0011LLCOMHEVEL1 * SNIEP DJ GUAMNTU PERIOD ACCEPTANCE STORMIYATEI OURALL WNERA NLCaon%AECONMENDATM"S FOR AMINIMUMOF SEVEN S&L DE NOTCE SHALL BE PROVIDE°TO THELWNER CONTAINER MOTROUNET RODFBVMTWAUTWITH A MARL ONIYWAFSERPSUVIfIOMLAKERANgARNALUo/fCiI000A-NFWORE PRGA To PLAMTMATEMALOEWGYTO THE STIR TM owNEA SHALL INSPECT !CIO ALONG THE OUHOE OF ROORALLA MINIMUM OP TRAM MI PLACESAURANTMATERABATTHELIMEOFDFLIVE'F.ROOMIER BEFORE PLANTING.OMANIMT MINOR ROOT DAMAGE.ROOTPMNE M MEMO IV MS CONRARS"ALL OEREOVESTCD DY CONTRACTOR FROM e F, ECM TO REQUIRE DAUAOEIONOAAMUCFNEMOI PULLET MATERIALS NECESSARY TO REMOVE MOWN OA DAMMED R00RS OWNER INSTALLED RANTS TATME DETERMINED TODEDEMON 6°DELTAMNEU TOM DAMAGED OA ONCNWISE UNSUITABLE ATTN MWM;OVE; OTHERWISE IRWIN EARSFACTORYMNDS°WAS DECMMINE°MTIE DONUT TO MOSUL ALL REACTED HAM MATERIAL SHALL 2 REMOVED NTT R°OTEMLISO PLANTING HOLE WNGUT BENDING OR DARMGINGTHC OWNE,SMLL OF REMOVED FROM THE STRAND SHALL BE REPLACED ASOMR IFROMTHESREIMMEDMTELY. ROOTS SPREAD Olt IIMMERHr RDOEAII AND ILAOROOTCOPLSMOVE ASCONOITOW PERMIT.UPON COMPLETION OF THEM 213LOOMENSS TABLE 3-1:GOALS,OBJECTIVES,MONITORING SCHEDULE,&PERFORMANCE STANDARDS TMLNam°GRADE. GUARANTEEPERIOD A PTANCE WILL DECERTIFIED N VMTND EY Me goNOACDEREDONSTTf,PIANTANTERWSSMLL BE PROTECTED AT AIL TWIT ON'REAMg 9gGOAL`i,??.?;c';?::';OB1.E_CTIVE:.i;: SCHEDULE -.PERFORMANCESTANDARDi: • `1xA0Aiumioer"i°xAIM as."Fn0°MAAMUM'.0ull"GnHVW Li11NT."FTmiionin°Fmxc 0P0TAOflWM"ivinRDOTe'u6TWOLii°oiFMR,M"uoUOISDL AxMD6ia IFRGTOWMAT E$§qCONDITIONS,AND WIND. R°CRMNNRMEHNL NOT BE USED FOR BAUMWND.P METTU IS E U Y 6 TO RIICCEMNOESTABMHA TO RSi.ULAND SUCCESSFULLY QVARRRIY OUTING •SRNLSURVIV*I STINTALNDPLANTSTOCRACHNACMUsr UNSUITABLE COMMERCIALLY*MATURE;TOPSOILMITN A HIGH ORGANIC • DINS)NAM RANTCONMUSR ERMAN AM NORM PLASNOS YEARS GROWND SEASON IYFAR IRA TINS STANDARD CM BE MET 2.1.2 ILANTMRTERIAI SOURCE CONTENT MAY DE USED TO(WIMP MORE PLANTING ROLL MORNAFCT°AFB CRU MA WITHIN EA SP OFAESTORE°THROUGH PAITOTMIUM ERUSAE"T OA RIHO,M e a AND 011112MG BUFFERPFES S. WETLAND AND WMAND/TEREAM AMION MAP AND NEWSOM TO AOIIEVE TIEREQUIRED PLANT NUMBERS. ACCRMU/LWTMARRIAL SOURCES INCLUDE MIDWAY TAOUGHTHE BACMM PROCESS.WAWA TOR°UGHLYIDSETIIF MEWL AUGUST. •MIT SURVIVAL RV MULLED PLANT STOCRAFTERTRl1OU SOLL SEPTEMBER MEARS GROWING MASONTMEET 1.LOG)NURSERIES.PUNTS SNAIL DE DERIVED MOATOMNTOCLACLLIMTED 1a; LI.4.63 •6DNAVEMTIE COVERAGE CTMTNEMES AND SHRUBS To To ETTERN ASHINGTOAl1OSCOWNUNDCSSIMIWMNDTONS.CONDITIONS.HAVIRO MEW COM1310!.Moot ATRN6OLD GMORAN°ENSURE THE PLANTS AT PROMARMENETOMGROWINSS[ASOHHCAR 31•• AANL4PFL WAWAADAINTO SETA STIR AND MO ADOIIMEM MOWELM 2NAVEMM COVERAGE TMTNCTARS AND SHRUM ACCEPTABLE PUNT SPIDERS INCLUDE STORM WI GROWERSII36N NECESSARY IT ROOTS RECOME EXPOSED. AMAMI RITE GROWIGSGSON MAA SM. 194-[642).OME MIN.TRIM AND SHRUM L021133T-3976T.MIRED I E NATIVE WANTS MEM 30<1123 OA APPROVED EQUAL FLAG EACH INSTALLED PUNT. PTO NM OVINE M3NEW000T PIANTERFOE DATE(S/E/AOU COVGNSERMY RE CO/MOE°OF OESIMOLI NATIVE E.23 PLANT PRATRAL QUAIRY MD NUMBER 11J13 , COLONIZING T[[I[L PLANTMATUMLSMLLEtH°RMAL N PATTERN al MoWLTI REAMER. CALL 2 WORKING DAYS DESIGNERCII RAC SPECESDNERSRT ETANEPDEFS OF I ROOMIER 33E141RANORD AND HAWALL LEADERS AND BUDS INTACT.TI[ESMIINOT C"ECAM: ES SPECIES ANOA MINWUM OP CSHRUI SPECIE AFTER ME HAVE SUNSGLDS,UISFGUNNO MOTS TREMORS OF LIMBS,DAMAGED BEFORE YOU DIG FIFTIGROWINO SEASON(MARS) MADER;AND/OR DEFORMED TLUNPS. 1-800-424-5555 Monitoring Plan TO UM NOXIOUS WEED MOW TO PAVAN MIL INITIAL QVARTEALY DURING •LESS IMCCOV[MGE 3TALLOMS'A•,'A'.ANDC RANTMATERAU SMLL BE MIME TIT HE PACIFICNORUIWLSEPRERMNLY IUWDERGIIOUNOVRIR(LDGTOEGSNDWWM[MPROOAMTQ PlantingWENNWITHINRMTOREDCPUTCALCONTROLOPN000UCWEEDTEMPNOXIOUSWEEDSDNCLUDNGNONRCCACA0...MD•. MEPUGETSOUNO MOON OF WASIUYGTON STATE PIANTMATEAMLS MALL UNITE:°GIGS AND OAEACTERISTCS SHOWN ON MEM DRAWINGS,WA/MAREAMAANDCM0CALMCAEUFSEAS. SPECIES A"°TNN TO MINIMIZE N°M°S WIFDCI IO[SIFIEDONTHELATEST OW CORNET BE PROPAGATED FROM NATIESTOCI.NO CNTVARS OR HORTICULTURAL MOD ONTO HUD 10G1GNOFMEAPPMFNT3UMAR EVIDENCE OFORRWOTHEGENEMLPREfNCEOFMMLon51A1'AND NOGOI6 WELD UST. VANCTIEMAALl0VFE0. STRUOUAS THE UNDERGROUND ROGTIMG AND CONDITION OF BURIEDUMURE SpeciflCation5 WDAIOUSWLlO SPECIES.AVGUTOA HASNOTEEFNNEMREO OACONFMAMLD.ADDITIONAL UMW LOCATOR ANDSEPRM3ERTIPWARSWMERLPROVIDEDCONTAINERIZEDOMITSOOTSHALLM°TAMINA MAPPING MAY RE MIMED.FIELD LOGgNERIR DEPTH OF,ANDADEOUATLY MMEM L3.4,63 CoNTAINEAIONO ENOUGHTO DEVELOP AGOTSYSTEM TIMTRMOIS THE PSOIACTAII CTAJ11EPAGRIOINESTMTOF WORt 3P3 EXHIBIT B Piper's Bluff Conner Homes at Piper's Bluff,LLC. CONTRACTOR INSURANCE REQUIREMENTS General Liability General Liability,Coverage:Comprehensive/Commercial General 2,000,000 General Liability Coverage:Products/Completed Operations 2,000,000 General Liability Must evidence occurrence form General Liability Must evidence per project aggregateGeneralLiabilityMustevidenceWAStopGap Automobile Liability Automobile Liability Coverage:Combined Single Limit 1,000,000 • Automobile Liability Must include any auto Workers Compensation and Employers Liability Workers Compensation Coverage Must evidence WC Statutory Limits Employers Liability Coverage:Each Accident 1,000,000 Employers Liability Coverage:Disease-Each Employee 1,000,000 Employers Liability Coverage:Disease-Policy Limit 1,000,000 Description of Operations Use the following verbiage or similar in the Description of Operation section:'Conner Homes at Piper's Bluff,LLC.,LLC'and'CHG SF,LLC'is added as additional insured for General Liability and Excess Liability policies. This insurance is primary and non-contributory per the attached endorsement. Contractors performing work on multi-family jobs must include'NO EXCLUSIONS FOR MULTI-FAMILY or TRACT HOUSING"in the description of operations section of the certificate. Must include attachment of Additional Insured Endorsement naming'Conner Homes at Piper's Bluff,LLC.,LLC'and'CHG SF,LLC'ona Primary and Non Contributory basis using_(CG 2010 11/85)or equivalent(i.e.not limited to"Ongoing operations"-but must include"Your Work" or Completed Operations. Any general liability or automobile liability deductible greater than$5,000 must be declared Cancellation Section Must provide a 45 day cancellation notice in writing Notice of Tennination/Cancellation must be absolute-cross out'endeavor to'and'but failure to do so shall impose no obligation or liability of any kind upon the insurer,its agents,or representatives' Other Certificate Provisions Certificate holder: include name and address Conner Homes at Piper's Bluff,I CHG SF,LLC 846 108th Ave.NE,Suite 200 846 108th Ave:NE,Suite 200 Bellevue,WA 98004 Bellevue,WA 98004 You may contact Accounting at(425)455-9280 if you or your insurance agent have any questions. The insurance company affording coverage must have a Best rating of A'or better For your convenience you may forward a copy of this page to your insurance agent. Conner Homes at Piper's Bluff,LLC,LLC 7/18/2013 EXHIBIT B I Page 1 INITALS 1 Exhibit C Conner Homes at Piper's Bluff, LLC Performance Standard: General-All Suppliers & Subcontractors The SUBCONTRACTOR agrees to: 1. Clean up all refuse and rubbish on or adjacent to the site daily. House or site must be swept/clean when task is complete and ready for the next subcontractor. Remove excess material,tools, structures,etc.that have been brought on site each day. No dumpsters will be provided for subcontractors use.Broom cleani your work area each day upon completion. 2. Keep and maintain the site in a safe and clean condition and notify the Superintendent of any unsafeconditions.Subcontractor leads will attend on-site Superintendent weekly Safety/Team Meetings.3. File a copy of an injury report with the superintendent within 24 hours of any injury. A written plan tominimizeoreliminatethecauseoftheinjuryshallbeincludedwiththereport. 4. Provide the Superintendent with proof of your"Accident Prevention Plan"and,if applicable,have copies of your"Fall Protection Plan,Respiratory Program&Hazardous Materials Program"suppliedtoeachsiteSuperintendent. 5. Prompt compliance and corrective actions in accordance with their safety standards and"AccidentPreventionPlans". SPECIFIC STANDARDS 1. Respect the neighbors,co-workers and property. 2. Play radios at a low volume. If normal conversation is not possible,it is too loud.3. Refrain from using foul language. 4. No smoking in homes. 5. Personal trash/wrappers/containers must be taken off site. Do not throw in construction trash bins.6. Keep off of the landscaping. 7. Use portable toilets exclusively. 8. Park all vehicles on the street unless expressly approved by the Superintendent.9. Leave time tickets,material delivery tickets,change orders and work orders in the Superintendent'smailboxdaily. 10. Leave all plumbing, lighting,.hardware and appliance finished product literature in the kitchen drawer. 11. Access the roof by ladders only.Dol not use windows for access or to pull cords or hoses through. 12. List resources needed,negotiate and obtain the Superintendent's Purchase Order in advance ofcommencingworkinvolvinganextracharge. 13. Obtain written authorization from the Superintendent prior to substitution of materials or finishes. 14. Obtain/review schedules daily through Connemet.net Username-subs Password-subs 15. Notify the Superintendent prior to performing any work with noticeable blemishes,flaws and/or discrepancies in the material or workmanship. 16. Install all materials in accordance with the manufacturer recommendations. 17. Never mix dissimilar types of metals-stainless steel hangers to be nailed with stainless steel nails, etc. ti 18. Clear and protect all surfaces from damage. Tool belts are not to be worn in close proximity to .finished surfaces. 19. Set the thermostat no higher than 75 degrees while working and 64 degrees during the night,unless required to dry work. Keep doors'and windows closed to conserve energy. Keep access panels.closed for safety when unattended. 20. Lock the home when leaving if you are the last one working there. The SUBCONTRACTOR hereby agrees to all conditions set forth herein and understands this document becomes part of the Subcontractor's Agreement as referenced in 1."The Contract Documents". These standards may be amended"by individual plat/plan specifications. SUBCONTRA TOR: Le_CAc /(1" C Lcn C!4 CJ By: //Date Signed: 9 L) Signature) 7'- t-- 11r11 Title: O \ t"n Print Name:_ Revision Date: 11/5/04 BEG;11/14/05 BJG;11/28/06 BJG Author.©Conner Homes Co. Last printed 9/12/2014 4:02:00 PM Page 1 of I EXHIBIT D Part Conner Homes Performance Standard: Field Management General Standards -All Suppliers & Contractors— Land Department All references to"Conner"within this document shall mean Trails at Newcastle,LLC for purposes of thiscontract) GOAL To provide Contractor owners and supervisors with Conner expectations for qualified supervision and leadership for all of their employees while they are working on a Conner Homes plat. GENERAL REQUIREMENTS 1. Contractor shall maintain the same site supervisor for the duration of the plat unless a change in personnel is approved in writing or requested in writing by Conner Superintendent. 2. Contractor shall designate a site supervisor and that individual shall be the single point of contact for all site field concerns and communications. 3. Contractor supervisor shall be able to read jobsite plans,and have'the technical ability to troubleshoot problems when they.arise. 4. Contractor supervisor shall review Conner performance standards with crew(s),including addendum information(such as parking,working hours,personal trash etc)that is highlighted at periodic team/safety meetings. 5. Contractor supervisor shall have a thorough knowledge of applicable building codes that affect their specific trade. SPECIFIC STANDARDS AND TASKS Task maintenance and assignment can be arranged according to this general timeline:At Job Start,Jobs In Progress, and At Job Finish. AT JOB START 1. Contractor supervisor warrants that all persons employed by or otherwise working through or under Contractor in the performance of work for Conner shall read and fully understand and perform in accordance with Conner general field management standards(this document),other Conner standards/specifications incorporated into the contract,plat/plan specifications,change orders/sketches,and plans related to the work being performed. 2. Contractor supervisor shall verify crew size,qualifications,and shall provide sufficient manpower to complete the job per agreed-upon schedule. 3. Contractor shall make an appointment to have a preconstruction meeting with the Superintendent prior to starting any work unless prior arrangements with Superintendent are made. 4. Contractor supervisor shall contact Superintendent via email of any changes in scheduled material delivery dates. 5. Contractor supervisor shall notify Superintendent,as soon as known,by phone call or email if scheduled work will not be performed. Adhering to the agreed-upon schedules is considered High Priority. Conner Homes at Piper's Bluff,LLC. 9/12/2014 EXHIBIT D-1 I Page 1 INITIALS,/ Alt JOBS IN PROGRESS 1. Contractor supervisor shall walk the job a minimum of twice weekly,or as needed and agreed upon at preconstruction meeting. Supervisor shall check that work in progress•is being performed in a good and workmanlike manner unless a greater standard of performance is specified.2. All installed work shall be verified for quality,accuracy,and material variances. 3. Contractor supervisor shall provide Contractor supplied material on time to keep crew(s)onschedule. 4. Contractor supervisor shall perform weekly safety inspections(per WISHA/OSHA standards)and shall make verbal and written corrections as needed. Documentation shall be provided toSuperintendentuponrequest. JOB FINISH 1. Contractor supervisor shall make"an appointment with the Superintendent to schedule a final quality control and completion walk. 2. Contractor supervisor shall arrange to have all excess material removed from the site within 2 days of the completion of the work. CONCLUSION Successful productivity levels are reached when those involved in the construction process take responsibility for their actions regarding QUALITY, SCHEDULE,and COMPLETENESS.Conner is committed in providing our homeowners with predictable outcomes in each of these areas of concern. Conner is also committed to giving those suppliers of material and services that very same predictability.ForthebenefitofallthepartnershipsinvolvedWithhomeconstruction, it is imperative that we as the on site coordinator ensure to the very best of our abilities smooth transitioning from one contractor to another.All of us involved form a team that is only as strong as the weakest link,and we create hardship upon others and productivity losses when agreed upon results do not materialize. By working together to provide better training and supervision to field staff building Conner Homes we not only create a better product for the buyers but will help each other meet our annual production goals resulting in financial gains for all involved. CONTRACTOR: L- Z&1-V.'.,IC./j ,G d-f s CONTRACTOR CONTACT INFORMATION: I SUPERVISOR-Name- 1 O-v t 4JU D6A ! SUPERVISOR-Cell phone- SUPERVISOR-Email address- FIELD OFFICE-Phone- CONTRACTOR OFFICE-Phone- Li 2, ,-32 - 1 ` '. - CONTRACTOR OFFICE-Email address c y.,,-1 1 y l U-I d CO01 The CONTRACTOR hereby agrees to all conditions set forth herein and understands this document becomes part of the Contractor's Agreement as referenced in paragraph 4(b). These standards may be amended fromtimetotime. CONTRACTOR:,, N By: Date Signed: I IcfSignature) Print Name: 1->CJ" l 1(1\/ Title: ,I 1 C C,SGt/1r-cJG Conner Homes at Piper's Bluff,LLC. 9/12/2014 EXHIBIT D-1 I Page 2 INITIALS / EXHIBIT E Conner Homes at Piper's Bluff, LLC. Schedule of Values 1. Subcontractor is to perform work and submit invoices per the following schedule of values. Yearly Spring Removal 1 year Hand removal/weedy/hack herbriceous non-natives,bagged and removed from site 1,680,00 5 year Spring Nuisance weed control; 8,400.00 Yearly Summer/Fall Removal visit Hand removaltweed whack herbaceous non-natives,bagged and removed from site 1,680.00 2 visit Summer/Fall Nuisance weed contra at$35 per hr. 3,360.00 Conner Homes at Piper's Bluff,LLC. 9/12/2014 EXHIBIT A I Page 1 INITIALS r • diii!1Nfl441110umu. l r i Sewall Wetland Consulting, Inc. f PO Box 880 Phone:253-859-0515 Fall City,WA 98024 City of Renton Planning Division SEP 1 2 2014 August25, 2014 nECEnVIEn Rob Risinger UU 11 lJ t Conner Homes 846 108th Ave Ne, Bellevue, WA 98004 Re: Piper's Bluff—Mitigation,Monitoring and Maintenance Narrative -Revised SWC Job#12-135 City of Renton File LUA13-001568 Mitigation Narrative The proposed mitigation consists of two mitigation plans, one for the existing water line crossing(Pipers Bluff-Wetland& Creek Restoration Plan"by The Watershed Company, and one for the disturbed areas of the wetland, stream and buffer from the storm pond failure (see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). The Watershed Mitigation plan covers 1,506sf of buffer,wetland and stream restoration, and the Sewall Wetland Consulting Plan covers 3,159sf of wetland, stream and buffer mitigation as well as supplemental tree under planting in the remaining buffer area. The purpose of these two plants is to restore the areas that have been disturbed by the installation of the wetland line,as well as the area of disturbance from the vault failure. Project impacts to stream and wetland are considered temporary, and proposed restoration will result in no net loss of ecological functions. Wetland and riparian plantings and removal of existing invasive species are anticipated to provide a slight improvement in local ecological function. Performance Standards All of the proposed mitigation will be inspected 4 times in Year 1 and twice a Year in Years 2-5. As depicted on the Pipers Bluff-Wetland& Creek Restoration Plan, the following Performance Standards will be used; Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. August 25,2014 Page 2 of 6 Performance Standards The standards listed be14,shall be used,tOjudge the succes of the plan over tune. I.Plant Survival and Giver: a.Achieve I00%•surviv4 of Installed vegetation by the;end of Year 1. This standard can be met through plant esiablishinient orthrough replanting es to achieve the required numbers, b.Achieve at least OS cover of native trees and shrubs by the end of Year 3, c.Achieve ai least f$Wo'coverof native trees and shrubs by:the end of Year S. 2.Species diversity; Establish at least I native tree species,and.5,native shrub specks.and one native ton+=•cover spedes by.Year S. Yoluntett species May count towards this standard. 3.Invasive cover No More Than 109b cover by invasive weed spies in the mitigation enhancement areas in any monitOth g year'. I. General summary of the spring visit. 2:Counts'of live and dead.trees•and shrubs by species in the planted areas,in'Year I,Significant die=off should be reported by species and quantity in anymonitoring year, 3,Estimate of native sapling tree and shrub cover using the line-intercept method along established transects in theplaaited,ar®a. 4,Esurnaie.of invasive cover using the:line.4ntercept method along established transects_ In the'planted nrea. S:.Photographk documentation tr nt:fixed reference.points in each plashing area. tG:Intruslons into the planting*eat,Vandalism or other actions that Impair the intended functions et the plant+ad areas. 7,Re;cor4itheeel tioiis`formain nee or reparr of any portion of the riahigatio i area, As depicted on the Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan the following Performance Standards will be used; TABLE 3=1:GOALS,AB1E4TiVES;•,MONITORING"SCHEDULE,&.PERFORMANCE STANDARDS OBJECTIVE'-;: ,_`SCHEDULE ° , -;'PERFORMANCE STANDARDS TOsdiC[£SStUiCiPtT{I 11ftiA 77isiY.TAtL .OSUtYf55t;U11Y_, QUAATEI3YDL 1SG • YOp% Bi91:'#Lt1I}IiTAiS.(Dh/,H1STcpt446 tirmncr MOSSINATtat;PEA.'iTOUTMOTTOY' ESTABEIS:'i 3Z7$UTNE VLA$t1,1 S 'TiA6 t CT:OW NS MAIOU'l4LAk.1)Ilas'siAe:AARD C/J.EL Fitt W/TtVN.RCSiO,i(n(T.TrtcAtAttk WIIinf3„TS Sf(}i',f1ESTDBED THPOUGHPEAAT LSTABUS*ft%NT CAPEPEANnlJr,AS" A/tD otivoll.itAnulri,n WEItANLs. oWETCRND/STREAAA APBRV,,MAYATT11 ,NECISSRKI;TO ACI&E}c THE BEo,UiPEQ pour TOJTABETS: BUiRg, R.TGUSl e1R • ,BESt SLOATTA187.04TALUED PiMt5TOViTTF.iTHER2aa SLPTTASIRQrn1AR3 'incri1iNQStAsori,tTUt®1). 2. 4,9.5 i 64SS AVFAAGI C tiONAGI ig{YAM/tK051.1to tiUUS Anti'Z iE TN M1O GAD W FIG,SEASOTT rtEAA 3P.. au%AVIXT4rcovnieGE 9x HAnW ran AF7u Pit TOM GROWTTO SEA5oN(Yz. Si UP to T*oT THC ILiTNC WOO PEAliT3[cEYTNET,AG[ MAY£ECUM?WST_QO?'oisPJLBXE TWTA colOh 1Nt SPECIS. SPEUESDiv£E in LSTABusOlilnori NATIVETMEE SWAT ANDAN4YCLI011 Qf,i SPOtat•sE0ESAFIRTTO TO UN TAOANTU5 WFID SNOTS .TO itto i6E lUU NNO M oUA!11Z.i,IT'DtrA,'U . LI$'iPP.'J 1U t0VTNAGI iY'Ati' ISS"A,•TI'.At964c' VantriT SWOTAITIESTOjCDKIT"BCAT COIMOT,QP"tiOUOU$WILD. T .,111 No%TOOS,WEEDS tih'C1UneaG Tiol16.#Gtitiop1.'AN9'C`AFEAfJJDC!•03 CAR.fABUlfFA2. S?iCIC3Ak1D,nIINTO Ien'tea( uOMou3 TStwn t T4TU.EU 014 PIT:LATEST OCA.riri1HIGttiiv.PFi tticfei APBRc)RTI YANQ T4OSiDU1 W£En16K14" N0 35ITU01V OW A: tt570R rtErtiTAUXOT IMI& Piper's Blie#12-135 Sewall Wetland Consulting,Inc. August 25,2014 Page 3 of 6 ANNUAL COMPLIANCE MONITORING FOLLOWING ACCEPTANCE OF THE AS;BUILT BY THE CITY CIF.RENTON,ANNIJAL COMPLIANCE MONITORING SHALL BE COMPLETED FOR A PERIOD Of FIVE(S) YEARS. ANNUAL tbmtuANO ivibriljtoRiNp.SHALL.BE COMPLETED BY A ' QUALIFIED PROFESSIONAL AND SHALL COMPRISE AVE INVESTIGATION AND REPORTING PER THE FOLLOWING INTERVAL': QUARTERLY WRING THE FIRST,YEARIYEAR FOLLOWING PLANT INSTALLATION,AND IN APRIL:OR 1AYAND AUGUST OR SEPTEMBER OF THE SECOND THROUGH FIFTH YEARS(YEAR 2 THKOUGH YEAR S)..00LLoWiNG INITIAL PLANT INSTALLATION: COMP LIANcg MONITORING SHALL COMPRISE A QUANTITATIVE ASSESSMENT'OF CONDITIONS WITHIN EAdf PLANTING AREA FOR PURPOSESOF EVALUATING THE CURRENT YEARS PERFORMANCE STANDARDS:. AT THE TIME OF EACH MomitRIE40-AtsE4*47,31-14 FOLLOWING INFORMATION BE 0,40(ti:A0b4g$ D,RRAilift TO THE PERFORMANCE STANDARDS ESTABLISHED FOR THECONDITION 0 F,INSTALLED PLANT STOCK-INCLUDING SURVIVORSHIP,fOiTkfi:AiNb VIGOR; RATIONALE FOR POOR, c.'ONEt.TrIONS,IF PRESENT,WILL BE DETERMINED; THCpttws:ct*tisiT100.0,F AND ARCA1..crtwifiAGE PROVIDED BY NATIVE WOODY PLANT OEttgs:(1*E .ApatislRyq400 NATIVE 0000t:OtAyt.000.0144000#0., THE SPECIES COMPOSITION OF AND AREAL COVERAGE PROVIDED BY t40)cibt.ts;WE(p SPECIES. comPLIANqMONITORINGJ.IVIETHOOCILOGY: tk`oiRECt-6514*INVENTORYAND,ASSESSMENT OF ALL INSTALLED PLANT STOCK SHALL 0 USED TO EVALUATE pkkg..gorlortu;04. SPECIES COMPOSITION AND AREAL COVERAGE SHALL BE ASSESSED USING THE COMPLIANCE MONITORING PLOTS OR TRANSECTS ESTABLISHED DURING THE AS4I,Ul1t. PHOTOGRAPHS OF E4t14.PLANTING ARE,A$H,4,Bp TAKEN FROM THE PERMANENT PHOTO POINTS ESTABLISHED DURING THE ASlitilLT; DURING EACH cblv_tu4NO mgmitRgIgists*ENT,EACH:PLANTING AREA WILL BE ASSESSED FOR EVIDENCE 00*isitirc4****Vak 006.00$OF FINES-PARTICULARLY IN THOSE AREAS;DOWNSLOPE/DOWNSTREAMOPTHE STORMWATER=FALL. WHERE NECESSARY,RECOMMENDATIONS FOR Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. August 25, 2014 Page 4of6 CORRECTIVE ACTIONS TO STABILIZE SOILS/SLOPES WILL BE PROVIDED IN THE RELATED MONITORING REPORT. THE RESULTS OF EACH COMPLIANCE MONITORING ASSESSMENT SHALL BE SUMMARIZED IN A WRITTEN REPORT AND SUBMITTED TO THE CITY OF RENTON NO LATER THAN NOVEMBER 30 OF THE RESPECTIVE MONITORING YEAR. CONTINGENCY PLAN SHOULD ANY COMPLIANCE MONITORING ASSESSMENT REVEAL THAT THE PERFORMANCE STANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED,THE PERMITTEE SHALL WORK WITH THE CITY OF RENTON TO DEVELOP A CONTINGENCY PLAN TO ADDRESS THE DEFICIENCY(IES), CONTINGENCY PLANS CAN INCLUDE,BUT ARE NOT LIMITED TO,THE FOLLOWING ACTIONS: 1. ADDITIONAL PLANT INSTALLATION; Z. EROSION CONTROL; 3. HERBIVORY PROTECTION; 4. MODIFICATION TO THE IRRIGATION REGIME;AND/OR 5. PLANT SUBSTITUTIONS OF TYPE,SIZE,QUANTITY,AND LOCATION. SUCH CONTINGENCY PLAN SHALL BE SUBMITTED TO THE CITY OF RENTON BY JANUARY 31 OF ANY YEAR WHEN DEFICIENCIES ARE DISCOVERED. UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON,ACTIONS SPECIFIED ON AN APPROVED CONTINGENCY PLAN MUST RE COMPLETED WITHIN 60 DAYS, IF THE FAILURE IS SUBSTANTIAL,THE CITY OF RENTON MAY EXTEND THE COMPLIANCE MONITORING PERIOD FOR THE RESTORATION WORK. Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. August 25,2014 Page 5 of 6 MAINTENANCE PLAN THIS SECTION PROVIDES A GENERAL OVERVIEW OF THE MAINTENANCE PROGRAM NECESSARY TO ENSURE THE SUCCESS STANDARDS ESTABLISHED FOR THIS PLAN ARE ACHIEVED. NOXIOUS WEED CONTROL FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD,NOXIOUS WEED CONTROL SHALL OCCUR ON A SPOT TREATMENT BASIS WITHIN EACH PLANTING AREA, TARGET NOXIOUS WEED SPECIES SHALL INCLUDE THE FOLLOWING: ALL CLASS"A", B",AND"C"NOXIOUS WEEDS(INCLUDING NON-REGULATED"B"AND"C"NOXIOUS WEEDS)IDENTIFIED ON THE LATEST KING COUNTY NOXIOUS WEED LIST, NOXIOUS WEED CONTROL WORK SHALL CONSIST OF THE CUTTING AND REMOVAL FROM THE SITE OF ALL NOXIOUS WEED SPECIES STEMS,CANES,RUNNERS,SHOOTS, SEED PODS,FRUITING BODIES,AND LEAVES PER THE FOLLOWING METHODS: 1. HAND PULLING. 2. MANUALLY CUTTING USING MACHETES,LOPPERS,AND/OR CLIPPERS. SPOT TREATMENT SHALL OCCUR MONTHLY AND/OR AT A GREATER FREQUENCY,IF NECESSARY,TO CONTROL NOXIOUS WEED SPECIES TO A MAXIMUM OF TEN{10) PERCENT OR LESS COVERAGE WITHIN EACH PLANTING AREA. DURING ALL NOXIOUS WEED CONTROL WORK,EXISTING OR PLANTING NATIVE VEGETATION SHALL BE PROTECTED FROM DAMAGE. GENERAL MAINTENANCE EACH PLANTING AREA SHALL BE MAINTAINED AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD TO PROMOTE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANT STOCK. GENERAL MAINTENANCE SHALL INCLUDE: 1. WEEDING OF EACH PLANTING AREA. 2. RE-APPLYING BARK MULCH TO MAINTAIN A 6"MINIMUM APPLIED THICKNESS-YEAR 1 ONLY. 3. THE PRUNING OF INSTALLED PLANTS TO REMOVE DEAD WOOD AND PROMOTE VIGOROUS PLANT GROWTH AND PROPER FORM. 4. THE REPLACEMENT OF PLANTS THAT APPEAR TO BE IN DISTRESS AND/OR DISEASED, 5. THE REMOVAL OF TRASH,UTTER,AND/OR OTHER NON-DECOMPOSING DEBRIS. GENERAL MAINTENANCE WORK SHALL OCCUR MONTHLY DURING THE GROWING SEASON AND/OR AT A FREQUENCY OTHERWISE NECESSARY TO ENSURE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANTS AND/OR THE CONTROL OF NOXIOUS WEEDS. Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. August 25, 2014 Page 6 of 6 If you have any questions or need any additional information please contact me at(253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall--Wetland Consulting, Inc. Ed Sewall Senior Wetland Ecologist PWS#212 I Billing Invoice_ EG00028625i. . city of ,• Check Number:483 Department: AR: .. BILLING CONTACT Eden Invoice: CHARLIE CONNER CHG SF LLC dba CONNER HOMES AT PIPER'S BLUFF LLC 846 108Th Ave Ne,#200 Bellevue, WA 98004 Phone: (425)646-4433 REFERENCE NUMBER FEE NAME/GL Number •Amount Due Check#483 ' Plan LUA13-001568 Maintenance&Monitoring-Cash 23,450.00 3954 SUB TOTAL $23,450.00 TQTAL .$23,450.00 f, I LXI.Q7,17. 0.x.0 x""0"'?'4'Tx4 • O' i`,Owl: THE FACE OF THIS DOCUMENT HAS A COLORED BACKGROUND ON WHITE PAPER , .. ,,,iY.iL9F N co e Fs?P9 t w^ ?w3sx !? jx Conner Homes at Piper's Bluff, LLC Wells Fargo Ifi 355 S.Grady Way •846 108th Ave NE Renton,WA 98057 14 -Bellevue, WA 98004• 19-854 425-455-9280 1250 DATE CHECK NO.AMOUNT r) September 18, 2014 483 23,450.00 t> Pay: ***********Twenty-three thousand four hundred fifty dollars and no cents 1<r 101E iI PAY. .City of Renton 1, TO THE ORDER OF krigac).0Dt.f;Nor.:.,Cyrixt,..8-,,,r4—(p,•xi.i3-.W.3.i THE BACK OF THIS DOCUMENT CONTAINS AN ARTIFICIAL WATERMARK—HOLD AT AN ANGLE TO VIEW MXI•4 .i, ,,IXIn ,y.uCy,.0^3,0..0,,v,r.I 11'0000004a 311' I: L 2 50013 54 ?I: 56 388.649901i' Page 1 of 1CreatedOn:9/19/2014 8:28:09AM Prepared By:Stacy Tucker 425-430-7282 r' Y ECIAL DEPOSIT TRANSMIT1_ PAYEE: l •L DATE:1 2,0 I RECEIPT#: X i REFUNDING ADDRESS:FINANCE REC.#: • AMOUNT: $ , 3 `,,57`7 crt t AUe N twit: FUNCTION#: CITY:`t" .1 k AAA STATE: LOA ZIP: "4zm'"i, TYPE OF DEPOSIT: BUILDING PROJECT NAME: Pi ,v5 (B L11 90 DAY TEMPORARY OCCUPANCY PERMIT LANDSCAPING MAINTENANCE ADDRESS LOCATION: 0 SIGN DEPOSIT. ii STREET CLEANING PERMIT#: LL) J I,3 a)acg PUBLIC WORKS DEPT.CONTACT:( L C k EXTN: X 12 DPW CONSTRUCTION PERMIT SPECIAL DEPOSIT OND IONS: PROPERTY SERVICES LATE COMER FEE(TO BE RETURNED TO LCS HOLDER) C.rmnbInerA WOE frlt 1 f ,J){ &-^ STVAC(APPRAISAL FEE DUE APPRAISER) 1-h ILr ' 14 g BOARD OF PUBLIC WORKS 0 BPWDEF(BPW DEFFERAL) WO#89150 FN#5190 TRANS CODE#7054) 0 OTHER: DMSION.S\DEVELOP.SERIDEVBPIAN.ING\BIDG DEPT.FORMSVASC.BUILDING DOGS\TEMPLATESLSPEC.DEPOSIT WHITE AND YELLOW TO FINANCE.RETAIN PINK FOR PBPW RECORDS ' Denis Law Cl` Of Mayor CY •O Community&Economic Development Department September 17; 2014.C.E."Chiip"Vincent,Adminiistrator : Rob Risinger Conner Homes 846:108th•Ave NE, Ste 200. ' Bellevue,,WA 98004 SUBJECT: Surety Device Amount Pipers Bluff.Plat City of.Renton Pile.LUA13-• 001568 Dear. Mr. Risinger Based on the two contracts: attached) I received. for'maintenance and monitoring for the Pipers Bluff mitigation project,the total amount of your surety device is"$23,450.00., The specific breakdown is as follows: Monitoring 7,000 Planting./Replacement/ Maintenance ' • :$11,760 ' - TOTAL ' • 18,7.60 - @125% 23,450.00• . This amount is deemed'sufficient to guarantee that structures, improvements,and mitigation:requiired•by:permit condition will.perform satisfactorily for a.minimum of five = ' 5) years after they have been completed: Please come to the-e Floor of Renton City Hall to pay'the surety,device, and as a reminder;the,City-does.not accept.bonds. Thank you for your diligent work in protecting Renton's critical..areas. Once I have received.a•receipt fo• r.the•surety device,"I.will'issue a.letter signaling the start your five year monitoring program: If you have any questions please feel free ta contact me 425) 430-7289. -- Sincerely; Clark H. Close ' Associate Planner _ • cc: :Ed Sewall,Sewall.Wetland Consulting,inc City of Renton File LUA13-001568 . Renton City Hall • 1055 South Grady Way •.Renton,WashN gton 98057..• rentonwa.gov . e r-77---7.--,- __ . Denis Law Cl1 Of' Mayori i pS ,. vXt. N Community&Economic Development Department September-17, 2014 • 'C.E."Chip"Vincent,Administrator , Rob Risinger.' Conner Homes 846-108th Ave NE, Ste 200` Bellevue,WA 98004 '" • • - SUBJECT: - ,Approval of Final Wetland Mitigation Plan/Proposed'Maintenance.& Monitoring;and remaining steps-for proceeding with Pipers Bluff Critical Areas Variance,file-No. LUA13-001568 - Dear"Mr:Risinger:- ' Mitigation,Plan Approval:We have review• ed and approved the final,revised.wetland ' mitigation plan/monitoring proposal for.Pipers Bluff Critical Areas'Variance received by • ' the City on September 12; 2014. I have enclosed a-redlined copy with corrections,for your records.The wetland mitigations and monitoring plan shall be installed in conformance with the approved p•lans;and the.followiing:conditions of approval for , construction per-mit.number,U14005011: 1.. Include coir..logs at.the toe,of the slope(on both sides of the stream) using wooden stakes on each side of the Honey Creek bank over the entire length"'of- ••- ',•• : - • the•mitigation planting area (approximately 62 feet). Coir logs supplyprotection .-' to a stream-bank from:erosion in areas with low-velocity current."- .. ' '. 2.:. Move all crushed rocked, near the:creek,at-least 15 feet away from the ordinary =--: - . ; ' : - high watermark (or top of slope) of Honey'Creek. ' 3: Replace topsoil:to•the'original grades prior to replanting with a dense layer of native trees and shrubs to restore the function and plant community to this ,- area. 4. Place erosion control fabric above the>stormwater outfall location.The.fabric will be used to prevent erosion of the slope,until.vegetation is establishes and-. : - has a chance to stabilize the*'slope. The.fabric May be constructed of:a variety of materials-from coconut fiber or ju,te-to straw mulch encased in biodegradable '_ : plastic netting. Secure the fabric with a dead stout stake, and backfill with.clean . soil. 5: Straw mulch is to be used within 15 feet of Honey Creek,Arborist wood chips, or:. approved equal derived from the chipping of tree branches; stems, leaves,and needles may-be used outside the 15-foot buffer from the creek. Renton City Hall • 1055 South Grady Way • Renton;Washington.98057. • rentonwa:gov September 17, 2014 - Page 2 Next Steps: Work with Jan Illian in the Plan Review Section to obtain construction • permits and begin work on wetland mitigation installation consistent with the app'roved: : plan. Mitigation Installation and Approval: Once the wetland mitigation has been installed - pursuant to-the approved'plan, please"have.your:wetlan-ds:specialist provide me with written verification that.the installation is'in conformance with the approved plan':The •-: mitigation installation must be.completed before September 30, 2014.We will need a copy of the signed:installation contract for this work and an installation surety device (a letter of credit or irrevocable.set aside letter) set at an amount totaling 125%of the cost to guarantee the installation of the mitigation project. As Built Plans for the Mitigation Area A copy of the as-built plans of the approved Mitigation:plan shall be provided to the City of Renton upon completing of the • installation. Monitoring;,Maintenance,Start Date; and''SuretyAmount:: In order to provide.you , with the amount of security for the:maintenance and monitoring of.the : wetland.mitigation planting , signage, and fencing;etc..Draffmaintenance and • ` . monitoring contracts have been,provided to the City for review, we.will need a copy'of ` - the.final signed maintenance arid monitoring contracts:for•this work. Before the City • approves the contract proposal;the applicant Will need.to,provide a•maintenance surety device (a letter of.credit or irrevocable set aside letter).set at an amount totaling • . 125%of the cost to guarantee-satisfactory performancefor a minimum of five years. • Wetland Information Needed on Final Plat Map: RMC Section 4-3-050G.3.req'uires that" ,, . all critical areas and their. buffers be placed in either a Native Growth Protection Tract or Native Growth Protection Easement. If you have•any questions please feel free to•contact me at (425) 430-7289. Sincerely, Clark H. Close Associate Planner cc: Ed Sewall;Sewall Wetland Consulting,Inc. Jan Illian,Plan Reviewer City of Renton File LUA13-001568 H:\CED\Pianning\Current Planning\Wetlands\Pip'er's Bluff Pipers Bluff Plan Approval.doe MONITORING&MAINTENANCE PLAN PLANT INSTALLATION SPECIFICATIONS aC PUN GOALS,ON[CTMS,AND PERFORMANCE STANDARDS COORECTVE ACTIONS TO SUBDUE SOILVSWPES WILL BE PROVIDED IN THE PARTt:GENERAL EDGES Of THE CONTAINER IN AVOUCH IT HASGRGVN.TREES AND SHAMES SHALL 11 MUUI C RELATED MONITORING REPORT. SEWELL AOOTDANDSIMLLNAVE SUOR00NT R00TMASSIO HOED TOGETHER 1ST' U PLAN GOAIS.OBIFLTNES,ANDPERFORMMNO STANDARDS ARE MINED IN ALL WORK SHALL CONFORM TOTE SPECIFICATIONS AND ETMIS SHOWN ON THE SOIL IN WHICH PAR IS GROWING,WHEN REMOVE000MTXE POT. PLACEMUEOITHROUGHOUTENHANCTMRO ARE/TO AMINLMUM APPLIED N 3 TAME RE IEIOWS THE GOAI.SAPNU MECUM OF NRSPUNME TIIERCSULTS Of EACH COMPLIANCE MONIIORINUASHMMUET SNAIL BE THESE DRAWINGS O(PMTOGWCHES MUIOESXALLNDTTOUCH STEMS Of INSTALLED RANTS. C CONSIDERED ACHIEVED WHEN Till PM DNMNCE STANMR0N ARE SATISFIED. SUMMARUW IN AWRITTEN REPORT AND SUBMITTED TO ME CITY OF RENTON CONSERVATION GRADE PLANT STOCK H NOT ACCEPTABLE FOR USE U NO LATER TIM NOVEMBER 300F TIIE RESPECTMMON GTORINGYEAR, ALL WORK SHALLCONFORM TO ALLAPPUWECOES,UWS.AND PARTE:PROVISIONAL ACCEPTANCE l! COMPLIANCE MONITORING PAN OADINAHOS, SALVAGED PENIS ARE!TOT ACCEPTABLE POT USE. V EDNNU[NCT MAN AMR COMPLETION OF THE PLANT TIRINSTALLATIONWORKCOVEREDBYESI C MBUILl CONTRACTOR SHALL FURRUNALLMATENALS,EQUIPMENT,LABOR,AND 1,1 MUIOI DRAWINGS,MIIMPECOON SHAM ERECUESTED FROM TIE OWNER WHEN ICI SHOUIDANY COMPLIANCE MONITORING ASSESSNENTREV[ATTIIATTHE MIMEO QEMS NECGSSARYTOCOMPLETf THE WORK SHOWN ON THESE WORK COVERED BYTESE DRAWINGS LS COMPUTE AS OFTFAMINIO BY OWNER W FOLLOWING COMPLETION Of THE RESTORATION WORK DIOW00NTISPIAN, PERFORMANCE STANDARDS FOR THCPESPECTNEY(MMENOTSKTUDl0,TNE DRAWINGS AND SNLLLWL1UDf ALL TOOLS,MATERNLS.PERMITS,INSPECTIONS, MULCH SHALL BE COMMERCIALLY AVAIGBEE•OOTWOOO 0NP MULLED PROVIDgULACCEPTANE'WILL BE CLAIMED INWRCUIG VINE OWNER A QUALIFIED PROFESSIONAL SHALL PREPARE AN AS-BUILTOPTHE COMPLETED PGMJTTEESHAIO ORLWIIHTHEOTY OF RENTON TO DEVELOP ACONTNGIA'CY TESTRANOOTNTR EAMillESS. WWW.CFDMGROVE.COM:1#T7.SORSAOL ARBORI1TCHMSORAPPROM II WORK.THE MNIUILTSHALL SUMMARIZETIR COLWTrl(D WORN AND ANT PUN TO ADDRESS THEOEFIR(NCY)TES).CONTINGENCY PLANS CAN IIILIUOE BUT EQUAL MUOI SHALL NO1 CONTAINRESIN•1MNIN,OR OMERCOMPoUNE PARTS:MAINTENANCE q DMAOONS FROM THE APPROVED VERSION OF TIBS PAL WMUITION,IHL ARE NOT LIMITED TO.THE FOLLOWING ACTIONS: WORK SHALL BF COMPLETED BY PERSONSEXP(MENCTO W THE UDIGL AREA IN OUMTITESTIIATWOULD BE DETTIAENTALTO%ANT LIFE OLOCI SMALL AS.RUNT SHALL CONTAINMSWNL MONTORWGOATAMDPHOTOGMPI6 MNGATUN WORK SHOWN ON TIES(DRAWMIS. NOT BE DGMD FROM SNMP GRINDINGS AND SIMLL NOT CONTAIN SOIL HOG CON1RECTOR SHALL MAINTAIN PLANTED AREAS UNTIL GUARANTEEPGIOD FORGOT PARING AREA L ADDWWMLPLANTUEfNUTWN; FUEL OR EQUAL 5 NOT ACCEPTABLE.SUBRCTTO RENEW BY THE RAN ACCEPTANCE S GIVEN.MAINTENANCE SWALLINCIUUE WEEDING MOUND THE VVVIII 1. EROSION CONTROL: CgRAACTORLIALLRECOGNOE TATACTUALLTE CONDTIONSMAYVARY DESIGNERIDCAIMBORIST AND/OS,COMMERCIAL TREETRINLIING BASE Of INSTALLED PUNTS,PRUNING OF INSTALLED PEN MNU t BASEUNE MO:ITORWR MON000LGGY: L IIEOONOPOPROIECTON; BASED ON SEASON AND/OR TIME METAL COMPANIES MAY St ALTERNATIVE ACCEPTABLE MATERIAL SOURCES. REPLACCMGT OFPUNTSTHATMUIR TO EWOGTAESS.CONTROL IS E PERMANENT COLD/UAW.MONITORINGPIOTS OAATAAVISECTS SNAIL 4. M0D IMUGATIONTOIHCIRRIGATIONREGE:AND/OR R(QUIPED OFTHE FOLLOWING SPECIES:AU.CUSS'A',•B',AND•.NOXIOUS i BE ESTANJSHCD AND IMMUNEMONITOPINBUTASHALL BE S. PUNTSUBSTTIUTONS OFRPESUEWANIIR,ANOIOGTION. CONMACTUR SPILL ACWMMOOATEREANED ANDANTIOMRO SDI WEEDS(INCW(IINONOV#FGUUTED'Er ANDY NOXIOUS WEEDS)IDENTIFIED LP 9 COLLECTED TODOCUMEMVEGVTATIONOMMCTERSTLCSWITHIN CONDTIONSWIIFNCOMPLETNG IHEWORK SIIOWN ON THESE DRAWINGS. PART.G[MION ON TILE IATST MNGCOUNT1 NUK10US WEED LIST.AMAINTENANCE PUN 1)IIIII EACH PUNTING MESA COMPLIANCE MONITORING PLOTS DR SUM CONTINGENCY PLAN SIMLL BE SUBMITTED TOTEQIY OF RENTON BY SIIALL BEPRONOFD BY COMPACTOR TIME DESCRIOES,IN DETAIL THE SPECIFIC TRANSEOSSNALLBESCALEDMPROPRIATELYTO ACCURATELY SAMPLE LWUARY310f ANYYEAO WHEN D(PICIEIOES ME DISCOVERED.UNLESS TAKE NECESSARY PRECAUTIONS TO PROTECT ALL PROPERTY.PEPSONS,WOAK IN L3 PUNT INSTALLATION LWUTDLANCE PROGRAM DEVELOPED 10 SATISFY TIE MAINTENANCE 111I NAME WOODY PINT SPECIES(TREES AND SHAUBSL NAM( OTHERWGF APPROVED BY THE CITY Of R(NTON.ACTIONS SPECITIEDONAN PROGRESS,STRUCTURES,IITIOTO.WALKS,CURBS,AND PAVED SURFACES 30 fL Gy REQUIREMENTS OF THIS PUN.A MAINTENANCE PLAN SHALL REAPPROVED BY EMERGENTWETAND SPECIES WHIRS PUNTED).AND NOXIOUS WEED APPROVED CONTINGENICYPUN MUST BE COMPLETEDWITNIN 60 OATS.Ii THE DURING WORK.flEED MIME.VERITY DEPTH OF.AND ADEQUATELY PROTECT 3.LI GENERAL S- FNNDVGRBBMr„ i WTEEH PRIOR TOISWMO OF PROVISION/JALCfPTMECE • Ity B SPECIES.BASELINE FIELD DATA COLLECTION SHALL BE CONSISTENT NATURE 5SJSSTANNU,THE CITY OF RENTOIN MAY EXTEND THE CO0PLIANCE ALL UNDERGROUND I/DUTIES PRIOR 1000MM(NOMTNT Of WOOL DAMAGE ET IWTNTHATOUTLINEDFOR•MNUALCOOPUANCO MONITORING'. MONITORING PERIOD FOR DIE RESTORATION WORK. 10 UIROIO01CURRED OA AALSWG FROM THISWNIRACTSIWl E PAID BY INSTAIU NAFPLANT MATERIALS SHALL OCCUR Bl1WL S PGMANfNT PHOTO POINTS SHALLB[ESTABLISHED AND CONTRAMA.Mt IF SCNLOULE OF PLANT PROCUREMENT ORSTE CONUTUNE PARTS:GUARANTEE PI21002APHS SHALL BETAKEN TW 000UMENT REPRCS(NTATM MAINTFNANO PLAN REQUIRE INSTALLATION DURING ALTERNATIVE DATER WRITTEN CONDOMS WITHIN EACH PLANTING AREA MAMAS Of WORK SMAUDE KEPT CLEAN.NEAT,AND ORDERLY AT ALL TIMES. AUTHORIZATION SHALL BE OBTAINED FROM OWNER PRIOR TO PLANT GE GENERAL THIS SECTION PROVIDES A GENERAL OVERVIEW OF THE MAINTENANCE PROGRAM ALL PAVED AREAS AM TO BE CLEANEDBNEY FOLLOWING WONC PUNS LULL BL/FUMANTECO FOR ONE YEAR AGAINST DEFECTS OF MATERIALS TON SHALLBASELINE BESHMIORRWGPLOTORTAVANGS. MWALLAS AMMO TO ENSURE IH[SU[[[SS STANDARDS OTABUSNFDFOR TNGPANMFLINOSNAILBESHOWNNONTHEABBURTORAWINGS, AMMO. MINUET SHALL DBERAWNTOINWRNND CO MOMS.EOTM CONFUCTIWORE ARISING WEATHER ORWTINSTALGROND SHALL OZENCWROURIN.GEEING AND WAARCWRCPTNC AND SHALL EXTEND00 ATONEDA WITHIN THESE DRAWINGS AND/OR SITE COMMONS.EOM WO0.EMISNG WTATIEROA WIIENTHCGROI015 FROZEN OR EXOSSMLYWET.PLANE PROVISIONAL ACCEPTAN[[ANDSNALL FYfENDEOR ONE TEAR. JILTANO BASELINE MONITORING DATA SNAIL BE SUBNITROTO THE NOXIOUS WEED CONTROL PROM'WIRE TO DO SO SHALL BE DONE ATTNF CONTRACTOR'S EXPENSE. MATERIALS HAVING FROTEN ROOTOALO SHALL HOT DE INSTALLEDUMR TOP HINTON NO LATER THAN 10 DAYS FROM THE DATE OUTTX(WOOK THEARCSUCHTUTPLANTSAREEASILYREMOVEDFROMCONTAINERS. T GUARANTEE RWUTAEM SHALL BESHA APPOG&E TO ANY GROLNN° SHOWN ON THIS PLAN INS BEEN COMPLETED. FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURINDTIE' PRIOR TO START OF ANY WOW.CONTRACOA LORAREGU EST AND ARENID A CONGRUOUS DIODUGIIWIIIOI PIANOS Of EMS.KIND COULD M EXPECTLO TO COMPLIANCE MONITORING PERIOD,NOXIOUS WEEDCONTNOLLNEL OCCUR ON A PUE.CONSMUCTION COTFGENCE WITH OWNER PIANTIMTERULSTOREO ONME SHALL RE ORGANIZED IN ROWSANO SUVA'E AND ANY DUTEMANY OACMISE OF DEANA WIEN COULD BE ANNUAL COMPLIANCE MONTIORING SPOTTRUTMENT BASISSVITHINTIIE ENDE BUFFER AREA MAINTAINED AND PROTECTED ATIN0 ADDITIONALCOST. ATNBUTOTO,DR MELTED BP,THE PHYSIOLOGICAL CONDITIONSOSII'E sOC PRIOR TOMOCONSTSUCTION CONFERENCE.CONTMCTO WSHALLACMTLY INSTALLEDPUE.TIES GUARANTEE SINLLNOTAPPLY TO PUNT LOSSES DUE Z IOLLOWTNO ACCEPTANCE Of THE ATRUILT IT THE OTYOU RENTON.ANNUAL TMG[TNOXIOUS WEED SPECIES SHALL!ALUDEIN[FOLLOWING:ALL CUSS W.MO PLAMINU AREA LIMITS IN A)IUHLYVTI3LL AWINEN.FLAGGING SHALL OE PUNT MATERIAL THAT CANNOT BE PLANTEDWITUN ONE MOAT AFTER TO ABNORMAL WEATHERCIAITUNS SUCH AS FL000S.00OSNE WIND IS 3 COLT MACE MONITORING SNAIL REWMALERO ION A PENAOETM)S) •0',AND'C•NOXIOUS WEEDS(INNUOING NON.R000UIED'B'AND'CNOKIOIS MAINTALTEOTHBOUGNOIRWORK UNTR FINALINIP(CT1OM BY OWNER DEANERY TO THE NEE SNAIL E•NEELEDIN•OA OTHERWISE STORED DAMAGE.DROUNNT,NEVERE EREEUNN.OA ABNORMAL RAINS,AS DETERMINED Um 6 E YEARS.ANNUAL COMPUANCO MONITORING SAIL BE COMPLETED PTA WEEDS)UFNTWED ON THEIATEST MG COUNTY NOXIOUS WEf0UST. TEMPORARILY IN ACCORDANCE WITH ACCEPTEDHOATICULTUML PRACTICES W STWE OWNER INSTALLED PLANT MATERIALS SNAIL BE MAINTAINED DURING MIA MIIO PROFESSIONAL AND SHALL COMPRISE AST(INVOTIGATON AND AMMNFG THAT DOES NOT COMPROMISE TN[HEALTH OF THE PLANT THE GUARANTEE PERIOD IN MEDAL ACCORDANCE WITH DI APPAOVEO•D ZO N REPORTING PER THE FOLLOWING INTERVAL' NOXIOUS WEED CONTROL WORK SIMLL CONSIST OP TIE CIMINNO ANDRTMOVAI PAINT II MATERIALS MAMMALS.PUNT STORAGE SHALL NOT RE LONGER THAN FOUR IQ VIEWS, MAIILTENMNO PIAN PROVIDED DT TIE CONTRACTOR. r W FROM TIMBRE 01 ALL NUXUUS WEED SPECIES STEMS,CANES,RUINS RS,SHOOTS, ai AUMTERLY OUR:MEM EIRSTYEM TEEM II FOLLOWING PLANT SEED POE,IRUITNG BODSR AND LEAVES PER THE FOLLOWINGMfTIIODS:Ll PUNT INSTALLATION PANT IMRAIAO STORED UNDER TEMPORARY CONDITIONS SHALL B[OPT TN OWNER ANY REQUIRE OF DEAD OR EfECTIVEPLAN0 2 0 INSTAWHION;AND L TANO PULLING. MOIST AND PROTECTED FROM ARWRSEWGTN(A CONDITIONS. PRIOR TO THE MD OF THE GUAAALLTFE PEROO AT NO ADOTIONAI COST. O 3. IN APRIL OEMAYAND AUGUST ORSE,TIMBG OF TN SECOND S. !EMMALLS CUTTING USINGMMIETFS,IOPPE RS,AND/ORCIIIP[M.1.1.1 GLNLRAI WHERE REQUIEM PLANTSSULL E REPLACED WITH THE SPECKS AND SUE M Q [C O A MINIMUM Of SEWN IT)DAYSINOTICESHALL RE PRONGED TO THEOVAIER INDICATED IN THE PUNT SCHEME MIDACCOP.BWO TO THE PLANTING YNY" 416E PMROUNSARATION. EM]THDOLIGM YGRSI MIAOWING INITV•L NECESSARY OCON1RONEUOUS WEED SPECIES A MANIMTR FREQUENCY, TEN11) PLANTAIATMI/ASITE QUAUR.ANTI QUANTIIT'SIALLMEETINE STANDARDS PRIOR TO PLANT INSTALLATION,THE OWNER SHALL BE KMINFORMEDAS TO DETAILS AND SPECIFICATIONS SHOWN ON THESE DRAWINGS UNLESS SN•••II OUNRNSTAlUlION.PEOSSTgY.WCONTAOACC IHIN ECH PLOOTGAAUWMUMUf RN)10)ORIGWLY DIRECTED IN WAILING E TIN OWNER.UNLESS OTHERWISE Q . . IFAONTOR LESS COYFMGEWIMIN EACH PLANTING AREA IJST[DONIHES[DMWINGi OAILYWORK PPOGgEfSTHR000N0UTPUMINSTALUTUN. APPROVED REPLACEMENT PULPITS SMALL BE MADE WIMW SEVEN in DAYS OF W ly M COMYIOUSWONG(AH PLAILCOMIEAF RPURPO ES Of EVALUATING TIN PIANTMAT(OL SRW,B(OFACCEPTED SIZE STANDARDS AND PROPORTIONS PUNT LOCATIONS SHALL BE AS D• EPICTED I SHEET I,SUBIER TO RCIATD NOTUIGTON FROMOV/HEA 4Q IL CONONTYLUIIPEAO01ALUWNGARUS.A THEETTMEN LE000 PIOTIE WRITGMLNOALLBPPPTCERROM M AGETING OR PURRING NATIVE AS SPECIFIED INAMERICAN STANDARD NUM[RY STOOL IUIOT LDITOM.ALL DMVANG NOTES.TIE OWNER SHALL REVIEW AU.RAW LOCATIONS PRIOR TO B NMLMYLMSPEMOAMANEPOLWUADCLPUEMTMEEFAM VEGOATOtILMIL Bf PROTECTED FROM MANGE PUNTS SHALL BEOF NORMAL HABIT OF GROWTH AND SHALL BF HEALTHY, PLANT MATERNONSTALLATION.ME GWHU RESERVES THE RiGHTTOMMST TMfCONTMC0ORWSTHE RIGHT DURING THE ENTIRE WARRANTY PERIOD TOCE[[[ O L• MONITORINGANDDAESESED AELN IVE10 ME PERFORMANCE SULLBL EMIR UPON THE PROPERTY FORASPECTI AND WRAIMTRGTUENT OF a U 9 2 IMMESHED FORTES,PROJECT: IOTHEPERFOAAWlOSTANMRWS G[PI[MLMAINTFNAN[F VIGOROUS,AND FREE OF OISFAY,INSECT EGGS,MOULT,AND LARVAE MAEMMTFRMUAT100. I5)V/ITNIN PUNNNGMBLf PRIOR ANY MATERIAL NEEDING SUOIAHDWI001 ARE STILL UNDER WARRANTY.ME LI STABUSHEO FORTH PROJECT: INTERNE INSTAWTON. OfOMPLSAQWGMGLNGIEMAINTAINEDPROSOTETHESUOCESSFULINTERVALSDURINGTRUTASTTCNON[NCIATUREAMESWMULLCONI RM TENS 05IMDARDIMILCO L000NAMES, MEASURES SO OS TTOTEDIN FOR CONVENIENT ACCESS MHE AREA I'9 a THE COMMON EWN.ANOWGOL THE RATIONALE COMIVANOMONINIU000US GROWTHOTROf THE INSTALLED ACCETEDSCIE.IFICO MENIRESENTSTUSS WIKENUIWGSTRAMiIIORMTO RAEMPRETMOONALLNOT BEAINEI(SO RANT ROOT SHALL B MEMUVE WORE TO ARRANGE AS SON ASPOSSIBLEFSSTOMEMfA L CURUI102,5NEAl1N•MDV:GORTIIEMTIOIUIEFOAPoOR OfMIILIMEM AHD N'uOROUf GROWNOf THEINSTALLED PLANT STOCK SHRUS,NASESS MANED PNMNO INTMURIETY OA SPEOWRTLEESMO CRMANEPROTECTION PLANTCONTAINERIZED NOT BE PEE00100T BY WMMVLWARENTAAOWEATHESOODNASON PEACH. OOIOEN00 I-WNTAINOASAOU PIANTAMRRIAO SHALL NPT BE DROPPED ROOT F UCONDfIIONN,M PLIOFNT,WILL BE OCTLMTINEO. SHRUBS,NO LESS TINT 10 PERCENT Of EACH VARIt1Y045PECO SHALL BE ECOMFAPPARFMAND WGTHGANDSEASON PERMIT. T. NATVEWOODT WANUP(OAMOAAM cOVFRAGE ISIQAS)ANDNTLA BY GUIFMLLMINRNIANCESHALL INCLUDE: PLANT MOYLALSSEDLL TER HAVE IFOF DEWLAP MUNI LBELOWINGTWHEW UBEIW, SOTWSDANAGEO. ATER EMI PIANTREPLHUMENT.IFAIM.A MARKED PLANING PLAN UTNEENTPLA TSP(OE HERE HA NO SDUWS)AND NATIVE PLANTC SCIENTSSULLLAVEWMWN,lFGIOLE LABELS OWING THE OIOWING OIMLOCATION Of EACH REM AEPLACEO Al MATTIME DUALS( EHMGENTIArtONTION OF AMAREACO L REAPPLYING EACH WUNTTOMAI CORREOSOFHTIQC PLANT HAME PROFIT ON THIS SHALL RIOTSAND ORAILS THE AIIOARFAL[OVERAGE PI.ONOEDAP L RS#IPLTNG BARKILCHIOIAAINfAINA6'MINIIAUM RAPED DGICIEDON SING DRAWING SO,PROVIDED TOOTflAGGIG ANDDSHOPGE GUARNTEEDFORONE FU Q. ,. NOXIOUS WEED SPW(S TEPRUNINN OF NSWILY. OVTWIIL PLANT MATERIALS ARE ACCEPTABLE WIMMPM.MAT THE OWNER. FOLLOWING PIJ NTING.WGANDSILALIE GUARANTEED FOR ONE FULMAR 3. ME PRUNING OF INSTALLED PLANES TO REMOVE DEAD WOOD AND BUTNTf1DU[MgOIFAf(WTE CONTRACT PRICY pUNi NATtAVLLSUGA ALLPUNRNULL SETHOROUGHLY WARRED WIIXW 26 NOUASAFI[R iOLLOYANGFWTING N. O COMPUWOMONITONNGT.TENODOLOGY: PROMORVIGORMS POUR GROWTH AND PROPER FORM. SZE REDUCED FROMOIOSE SPECIFIED WUL NOT BEPEPATTIED.ANIPANT PLANTING. EAT SVRVM1Tl0.5MP N B ADIRFCTCOUNT INVENTORY ANO ASSESSMENT OF ALLINSTAED A. TI.E REPLACEMENT OTPIANTS TIIATAPPEAR TO BE IN DISTRESS AND/OR SIZE CHANGE SHALL BEAPPROVCD DYOWNER PRIOR TOPIANT O[llVERY10 OURP STOCK MELEE RANTBEUSEDTOEVALUATE CONDITIONS OGGSFD. - SITE. ALLPLANISSIWLL RI MM[FD WITH HIGH VGIORITYPUGGING AFTER PAR ANY 4A51ALLfDTMF ORSHAUBTHAT SGPG3EAT00R CCUALT025 PERCENTINSTALLMION.FLINGING SHALL BE ATTACHE TOME MAIN STEM,IGD[R OR MOBTHE"LIEINTERAND AREA CDVEMGESUNEDDURING TEl S. IERCM05'ALOFIRASM,IIfTERMTD/OR OTHER NON-0ECDAEDOSLNG pl,1N(MATERIALS MALL BE PACKAGEDERN CARE FOR TRANSTTOTHE SITE. BRANCH°FITEAFFECED PLANT. DEAD OAdLIGUED WILL EWNSUEM O DEAD AND MUST BE REPLAIO AT USING THF'MNEINTROITTEOUROUF OTABUSNF000RINU THE O[BRIS 4. B NOAODRUHLLUWIGE AIREE WILLeF CONSDERFD DEAD WREN TIE MAIN AB#URT, RANCHES SHALL EYED BACK,AM BARK E PROROf0TO PREVENT NOAGNONAL BACKOE MEE MEESE UMOFISPEROEORNIECNOWN 0 W DAMAGEPMIA CHAFING BYROM:51D WIRES PLANT MATERIALS W STORAGE ).11 INSTALLATION a PHOTOGRAPHS IS ESTA MG5MANG TA[FNGOMTHE SEASON NMINTEW fRUDUE SY OTHERWISE MONTHARY10NGTHEGROWING GDFAD.FLANTSVNLL BE WNSIDU(O CASEIGURED WHEN EWASSNE DEAD a IfRMANFNTIH010 POINT ESNOOSEIED ON IOCOUf AS-BNLT. SEASON U ES(ATAGEOTANUVIGOROUS GROWTH THENGALTIIE LNLLBEPO AL DELIVERY USIAWEATHER AND PARED TO PROVIDE PROTECTION. WOOD HAS BEEN RE MOVED OR WHEN THE MAMMY°ROIPIGLUBR Of SUD.,DAHl ONTROL OENTANUS WEIDU5 GROWTHOFTHCNSEAILLA WANTS ERGINGS. UNIING HOLE P[RTHEAIILKABLE DETAILS SHOWNIEHESE GROWN NM BEEN IMPAIRED WINE REMOVAL OF THE DEADWOOD. WILL GUOISED FOR OMCHUF NNUA.NCOA! E VbIPUNM6MG ANO!ORIECONGOLOFN0Al0US W([DS AUNT MATERIALAVOID iLIVEMAWALAIELY AI DRAWINGS. WILL REASSESSED LY III THOSE EOANEUONULUDURMU/OROFPOLTHE OF NSTALUTIONTOAVOID MENDED STOMGEOiINE MATGWSONSRE 03 GUARANTEE PERIOD ACCEPTANCE iu FINFS•vTATER URLYWTKMSEARSCEGAOY,(ECUNAOWNATIOTW OF THE CfMOINC(NO FROM WNTMNERWTSHALIOISACOMILLYWIIACR R Q G IAEEROURALL IVNGF N[OSSMY,REWMAIFNDATUET04 AMNIMUNO[SEVEN IA RAYS NOTIOSIWLBF DAOVIDEDIOTH[OVMER WYTNNERSTOGISROOIBOUNOINORHA0INOMAGE,RYWIIHAEAS ONE TEAR AFTER PROVISIONAL ACCEPTANCE,A FINAL INSPECTION OF THE WORK PRIOR TO PUNT MATERIAL DEIMAYOOTLE SITE TILE OWNER MALLNSTIO BCDOPUIONG THEOELAAST ROOTBALLANINIMUNITUEEI311L10ES i ALL PUNT MATERIALS ATTUT TIME OF CEUVERY.TIR OWES,RESERVES TIIE KNIFENIOALONG THOUPIANTHMAONOR A MIDAIAAO,ROOEE(3)1 M COVERED DYTHIS CONTRACT SHALL BF REQUESTEDBYCOHTMRORFROM RIGHT TO REWIRE SUBSTITUTION OR REPIAOMENT OfIAR LEMMAS NECESSMYTO REMOVE BROKEN OR DAMAGED ROES OWNER INSTALLED PUNTS THAT ME DETERMINED TO RE DEAD OR W`^ DfTAMTNG3 TO BE D.AMC D°ROTHE/WU UNSURAACO AT TIENUE OF OTHERWLEMOT INSNMFAC0ERYWNOTUN,AS DETERMINED BYTNE H 8 DREWRY TO THL SITE ALL REJECTED POUR MATERIAL SIMLL BE REMOVED INSERT ROOTDALL INTO PEAHEN.HOLE WITHOUT BENDING OD DAMAGING DIE OWNER SNAIL BE REMOVED/ROM THESTEAND SRAM RE REPLACED M SOON GR AOMME SITE IMMEDNTELY, ROOT,SPREAD OR•BUTRRTLY'ROOIOMLAND PUCE ROOT COLLAR ABOVE AS CONDITIONS PERMIT.UPON COMPLETION OF THESE RFQUNM.1MS, TABLE 3-1:GOALS,OBJECTIVES,MONITORING SCHEDULE,&PERFORMANCE STANDARDS INF FINESHCO GRAOL GGUARANTEE MAIO°A1PTI N alWI1101waD W1NWG E111E IT ONCE ACCEPTED ONSf1E,PAR W DE PMATERIALS ROEICIED AT IRON THEFT.VMOALRM.AND OMMGE WOUOING BUT NOT UNWED ID USE MOIST:IULVUTED,NATIVE SOIL FOR BAOFIW T.MLBENSURING THAT GWO U 511GOAL" • " 'OBJECTIVE • SCHEDULE PERFORMANCE STANDARDS THAT CAUSED BY ANIMALS:NUMANs.DgoUGNT,vunRPROS1IFA(FneG CONTACT WITH ROUTBAILIS MADE.FRWEN•MUDE.AND/US,MASSIVELY 51. CONDITIONS.AND WIND. RDCAY lAnCTURESSHALL NOT BE USED FOR GCRRIING.IF RAMIE IS IOSUEYASSMLY ESTABLISH A TO INSTALL AND SOMOSLOLLY QUARTERLY DURING •IODIC SURVIVAUPS INSTALLED PAN STOCK AFTCRTNIIRST UNSUITABLE.WMMFROALLY MAA.LE TOPSOIL WITH A HUH ORGANIC UNAENSINATIVEPLANECOMMDY 1ST/MUSH 941 NATIVE PARINGS WAR GREVINO SEASON DEAR IL THIS STANDARD CAN BE MO 1.13 T•IANT MATRMI SOURCE CONTENT MAY BE USED ONO PROPERLY RAOFILL WANTING HOLE. TT WITHINTICAAARESTORED CNTICAL AREA WITHIN AGM SWOFMSTEIED THROWN PIANTOTABLISHMENT OR RENAMING.M F AND CRITICAL AREA BUFFERS. WOUND AND WETUND/STRFAM APRIL OR MAYAND NECESSARY,10 AMINE TILE REQUIRED PLANT NUMBERS ACCITABLE PIAUI MATERIAL snows INOUE: SOILAll MOWN TIC RAOMIII PROCESS,WATER TIOA000MY TO SAME PIONEER AUGUST OR •BSII SURVIVAL OY INSTALLED PLANT STOCK AMR IHCTM0.D STIR 0 p, SEPTEMBER E YEARS GWWING SEASON IYUR 36 1,IOGI NURSERIES PIANISSIMI BE DERIVED FROM STOCK ACCLIMATED L 3.4,AS • CON AVERAGE COVERAGE BY NATIVE TRIES AND SHRUBS TO WESTERN WAHINGTON[NVIRIMENTAL CONDITIONS,UVING DUN ' COMPLETE EARDLL AT FINISHED GRADE AND ENSURE TALI PULE IS AT PROPER AFTER THE THIRDGAOWINO SEASON(YEAR T. YDIl51SRTTLY CULTIVATED AND GROWN UNDER SIMILAR CONDITIONS ALIGNMENT.WATER AGAIN TO SETAE SOIL AND ACID ADDITIONAL BAGFNLAS BOSSAVfMOE COVERAGE 2NATNE TREES AND SHRUBS • ACCEPT/MI PLANTWUIILT RORSINCLUDESTORMIMFGWGSIISMI NECESSARY IF ROOTS BECOME EXPOSED. E•.n MEER TH[fIFTN GROWING SEASON(AFAR 31•• OW-WM CLAMS NATIVE TREES AND DAUBS HMI 19T61,SOUND NMMT PUNTS II1GO135ad1RL04NPEODED EQUALQUAL. FLAG EACH INSTALLED PLANT. IUlE.5/39h01E UPT010X Of THE HAML WOODUYPNTSIECIE$ I.l.l WGNI MATRUI OVALLR DESIGN BYJOB : ES COW MG[MAYBE COMPRISED OF DESIRABLE NATIVE COl01UING SPECIES. M HAM MATERMATERIALSHALL BE NORMAL INPATTERN OF GROWN.HFALTHr, CALL2 WORKING DAYS ulevY Eft SPECIES DRSTY:ESTABLISHMENTOf1MEAIRIE WILL-BM ENOIEDANDHMIALLEEARSANDBUDSINTACT.MISSHALLNOT BEFORE YOU DIG HAVE SINSCALDS,DISFIGURING KNOTS.MESH COT OF LIMB;DAMAGED VIOLS G ANONMIMUMOAR fI1RV0SWO(SAPRRIHC LEADERS.AND/OR DUOAMEOTAUN2 1'8OO.424-S55S Monitoring Plan TROVVING SEASON)YEARSI LINDERBROUND MITT LOCATIONS SHOWN ARIA APPROXIMATE) TO LIMIT NOXIOUS WEED SPECIES TO PRONDEFIILLIIW [WARMLY DURING •LESS THAN LOTS COVERAGE BY ALL CLASS'A•,'B',AND•C PLANT MATNWS SNAIL NAtNE TO TM PACIFIC NORTHWEST,PAIUNBLY Planting WITHIN WINK RESTORED CRITICAL CONTROL OF NOXIOUS WEED AFAR NOXIOUS WEEDS(INCLUDING NON-ALGINATE°"S.OM TrENE PUGET SOUND REGION OF WASHINGTON STATE.PUNT MATERIALS SNAG URNIY LOCATIONS AND OMMCRRIMIO SHOWN ON DOE DRAWINGS,If AIR,ME A4fAAINO GNCAL AREA BUflERR SPECIES AND TIIENIO MIMMl1[ BE PIIOIAUAIFO L NMMSTOM.NO COtTIVA00R NONlCULTURALNOXIOUSWEEDS)IDEATING ON NE LATEST KING COUNTY EASED ON TIE FIELD LOCATION Of THE APPARENT SURFACE EVIDENCE OF COSTING Specifications THE GCNLRAIPAEXNOE APRROA MAY AND NOXIOUS WEED UST. VANETtSAREALLOWSOWFO. STRUCRIPES,THE UNDERGROUND ROUTING AND CONDITION OF BURIED UTUTIES NOXIOUS VVF[O SPECIES AUGUST OR HAS NOT MEN VERIFIED OR CONMMED,ADDITIONAL DEWY LOCATION AND MEET S[IIEMBER I TAG WHERE PROVIDED,CITMNERftED 0WNSTIXLCSHALL REGROWN INA AV3HNG MAYBl RFQUTAfO,EMUSUTILITIES IOGT TUIH(DIIINOF,NlDAOWWTEIY Aka,3 CONTANER LONG ENOUGH TD DEVELOP A ROOT SYSTEM THAT REACHES THE PROTECT ALL UTILITIES PRIOR LATHE START OG COIL 3 OF Denis Law In City Of Isi Community and Economic Development Department August 29, 2014 C.E."Chip"Vincent,Administrator Brad Adkins 5210 NE 12th St Renton,WA 98059 SUBJECT: PIPER'S BLUFF CRITICAL AREA VARIANCE COMMENT RESPONSE LETTER LUA13-001568,VAR Dear Mr. Adkins: Thank you for your additional comments related to the Piper's Bluff Critical Area Variance; dated August 19, 2104 wherein you raised concerns regarding the proposed project.Your letter has been included in the official project file and the reviewing official considered your concerns and requests as part of their review. Please note the City removed the on hold status on August 6, 2014,following an independent secondary review of the applicant's wetland analysis and effectiveness of the proposed mitigation to determine the extent,function and value of the wetland/stream habitat and potential for impacts and mitigation. The City issued an administrative critical areas variance report and decision on August 28, 2014. A copy of the decision is available and may be obtained from the Renton City Clerk's office, Renton City Hall—7th Floor, 1055 South Grady Way, Renton,WA 98057. They may also be reached at(425)430-6510. If you have any further questions please feel free to contact me by telephone at (425) 430-7289 or email at cclose@rentonwa.gov.Thank you. Sincerely, Clark H. Close Associate Planner Renton City Hail• 1055 South Grady Way•Renton,Washington 98057 •rentonwa.gov DEPARTMENT OF cony JITY City of AND ECONOMIC DEVELOPMENT ADMINISTRATIVE VARIANCE REPORT & DECISION A. SUMMARY AND PURPOSE OF REQUEST REPORT DATE:August 28, 2014 Project Name: Pipers Bluff Water Utility Line Crossing Project Number: LUA13-001568, VAR Project Manager: Clark H. Close,Associate Planner Owner: City of Renton 1055 South Grady Way Renton, WA 98057 Applicant/Contact: Conner Homes at Pipers Bluff, LLC Attn: Rob Risinger 846 108th Ave NE, Suite 200 Bellevue, WA 98004 Project Summary: The applicant is requesting a Critical Areas Variance and an addendum to an existing SEPA to place a water utility line within a stream, wetland, and. their associated buffers. Preliminary Plat approval and Environmental SEPA) Review was received for the subdivision of the 5-acre parcel into 28 lots for the future construction of single family residences, in addition to three additional tracts for an access, drainage, and Native Growth Protection Easement (NGPE) (LUA12-076). The project site is located within the Residential - 8 (R-8) dwelling units per acre zoning classification. External access to the plat is proposed via Hoquiam Ave NE by way of two new curb cuts, which is proposed as part of the plat improvements. Internal access is proposed via a new loop road (Road A). During plat construction, and without prior approval from the City of Renton, the applicant constructed the water line under and across Honey Creek, a Class 4 stream, and through a Category 2 wetland (according to the criteria in RMC Chapter 4-3-050.M.1) and its associated buffer. The project requires a Critical Areas Variance from RMC 4-3-050L.8.b for new utility lines to cross Honey Creek: Prior to the constructed water line, the previously present vegetation provided a stream and wetland buffer function, which is now lost. The applicant is proposing two mitigation plans: one for the existing water line crossing and one for the disturbed areas of the wetland stream and,buffer from the storm pond failure at the northeastern portion of the site. The two plans cover a combined area of 4,665 square feet of buffer, wetland and stream restoration._SEPA Review was previously conducted by the Environmental Review Committee (ERC) and a threshold Determination of Nonsignificance - Mitigated (DNS-M) with four mitigation measures was issued on October 12, 2012. Project Location: East side of Hoquiam Ave NE near Oliver M. Hazen High School Parcel Nos. 102305-9002, -9144,-9312,-9367) Variance Report 13-001568 r City of Renton Department of Communi- `."conomic Development Administrate 'jtical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CRC: G LUA13-001568,VAR Report of August 28,2014 Page 2 of 18 Exist. Bldg. Area SF: None Proposed New Bldg. Area (footprint): N/A Site Area: 223,463 Square Feet (SF) : Total Building Area GSF None 5.13.Acres) . r IMap: 0322050271 , P%all UIPo3"' uaawaaoas e U t x 4. 1\j t 1 a:3t'i-m-+r Y.-•_vl rrrr—n^-Y t":^a"^". .e ter•.^' r roaauson i- fiiKrIED amm-rwo r»asor r r os 4 M OM O nararorao B. PROJECT DESCRIPTION/BACKGROUND: In conjunction:with the Pipers Bluff Plat project (Exhibit 4), Conner Homes is requesting a critical area variance for activities within critical areas and critical area buffers.The variance is for installation of an 8-inch.water main beneath Honey Creek, an associated riparian wetland, and buffers for the stream and the wetland.The water main will be contained within a 16-inch steel sleeve.:Installation of the water main is a required component of the i28-lot subdivision located near the intersection of Hoquiam:Ave NE and NE 12th Street (Exhibits 2&3):with associated roads and infrastructure on the . Pipers Bluff site. . 1 1 The Pipers.Bluff development project included the requirement by, King County Water District 90 to connect to the existing water line main and:run the water line to the east part of the site across the creek to allow for future water access to parcels east of the project. This work included crossing of a Category 2 wetland as well as a'Class 4 stream, and was conducted by the prior plat owner before receiving approval by the City of Renton. The applicant worked with King County Water District 90 in an attempt to waive their requirement to install this line, which would have avoided any associated. impacts to the stream and wetland. The attempt to waive this requirement was unsuccessful by the applicant.The only way to access'the existing water main was to cross the wetland,stream and buffer where it occurred;therefore, avoiding any disturbance to the wetland,stream and buffer was not deemed possible.The following factors were discussed through the implementation process: a) crossing the stream and wetland at a very narrow point, b) crossing the,stream and wetland in an already impacted power line corridor, c) establishing appropriate erosion and sedimentation control. measures prior to in-wetland/stream work, d) limiting the width of the trenching to the maximum . extent practicable, and e) immediately stabilizing and restoring the disturbed areas consistent with appropriate erosion control plan, native plantings, and stream substrate (Exhibit 10). A Hydraulic Project Approval (HPA)was submitted and received for the project,from Washington Department of Fish and Wildlife (WDFW); the HPA met all of WDFW's criteria for avoidance of critical habitat areas notwithstanding the associated temporary impacts to the stream buffer (Exhibit 9). Variance Report 13-001568 i City of Renton Department of Commm -' Economic Development AdministraV `;ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CFi1 _a VG LUA13-001568,VAR Report of August 28,2014 Page 3 of 18 In addition to the steam crossing project,the vault facility failed which subsequently released substantial amounts of fine sediment from the stormwater vault into the wetland, stream system and their buffers, along with scour and downcutting at the vault discharge point. Such adverse impacts to the wetland, stream and buffer warrant compensatory mitigation. The project requires a Critical Areas,Variance from RMC 4-3-050L.8.b for new water utility lines to cross Honey Creek.The combined impacted area from the water line crossing and stormwater vault facility failure totals 4,665 SF (0.11 acres). The applicant is proposing two mitigation plans "Wetland and Creek Restoration Plan" by The Watershed Company(Exhibit 7) and "Pipers Bluff Supplemental Critical Areas Restoration Plan" by Sewall Wetland Consulting (Exhibit 15),ione for the existing water line crossing and one for the disturbed areas of the wetland stream nd buffer from the storm pond failure at the northeastern portion of the site. The compensatory mitigation plans are designed to improve the entire wetland/stream/buffer corridor on the'site.The plantings will provide habitat, slope stability mitigation, and the potential for water quality improvementsfor the sediment release and erosion that have occurred in and near the strem, wetland and associated buffers. The Wetland and Creek Restoration Plan, dated July 31, 2013, idenfied 424 SF of temporary impacts of wetland, 113 SF of stream, and 969 SF of buffer(total impact area of 1,506 SF).The restoration would include streambed gravel consisting of well-graded rounded rock and the following trees, shrubs, ground cover, and emergents: 3-Vine Maple (Acer Circinatum), 3-Western Hazel (Corylus Cornuta), 8- Osoberry (Oemleria Ceraciformis), 10-Nootka Rose (Rosa Nutkana), 7-Salmonberry(Rubus Spectablis), 28-Snowberry(Symphoricarpos Albus), 70-Sword Fern (Polystichum Munitum), 19-Lady Fern (Athyrium Filix-Femina), 8-Black Twinberry(Lonicera Involucrata), and 47-Slough Sedge (Carex Obnupta). (See Exhibit 7 for spacing and sizes). The Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan explains that the applicant states the disturbance of 3,159 SF total area (2,290 SF to the buffer and 869 SF to the wetland)from the vault failure was an unexpected event. After the failure, sediment was removed from the stream, and the area was covered with straw and silt fences were installed.The stormwater pond was retrofitted with a liner\to prevent this from happening in the future. To compensate for the unforeseen impact to stream buffer and wetland,the remaining buffer area on the site outside the disturbance areas will be planted with supplemental plantings. Plantings include 40-Western Red Cedar (Thuja Plicata), 10-Vine Maple (Acer Circinatum), 10-Redosier Dogwood (Corpus Sericea), 5- Twinberry Honeysuckle (Lonicer Involucrata), 17-Indian Plum (Oemleria Cerasiformis), 19-Salmonberry Rubus Spectabilis), 18-Common Snowberry (Symphoricarpos Albus), 49-Salal (Gaultheria Shallon), 49- Western Swordfern (Polystichum Munitum), 47-Dull Oregon Grape (Mahonia Nervosa), 40-Slough Sedge (Carex Obnupta), and 38-Sitka Willow (Salix Sitchensis). In addition, all blackberry and invasive species will be removed from the entire buffer area. (See Exhibit 12 for spacing and sizes.) State Environmental Policy Act (SEPA) review was previously conducted by the Environmental Review Committee (ERC) and a threshold Determination of Nonsignificance- Mitigated (DNS-M) (Exhibit 5) with four mitigation measures was issued on October 12, 2012 (Exhibit 6). C. EXHIBITS: The following exhibits were entered into the record: Exhibit 1: Staff Report Variance Report 13-001568 City of Renton Department of Commur -Economic Development Administrat;" Itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CR', __-VG LUA13-001568,VAR Report of August 28,2014 Page 4 of 18 Exhibit 2: Neighborhood Detail Map Exhibit 3: Vicinity Map Exhibit 4: Preliminary Plat of Pipers Bluff—Plat Plan Exhibit 5: Environmental (SEPA) Determination of Nonsignificance—Mitigated (DNS-M) Exhibit 6: SEPA Mitigation Measures Exhibit 7: Pipers Bluff Wetland & Creek Restoration Plan (Sheets 1 through 5) prepared by The Watershed Company, and dated July 31, 2013 Exhibit 8: Washington State Joint Aquatic Resources Permit Application (JARPA) Form, dated August 26, 2013 Exhibit 9: Hydraulic Project Approval (HPA) from Washington Department of Fish and Wildlife (WDFW), dated September 11, 2013 Exhibit 10: Pipers Bluff#12-135I Water Main Crossing Justification Memorandum, prepared by Sewall Wetland Consulting, Inc., dated December 2, 2013 Exhibit 11: Pipers Bluff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting, Inc., dated April 15, 2013 Exhibit 12: Pipers Bluff Plat—Pipers Bluff Critical Area Variance Request Review, prepared by Otak, dated April 9, 2014 Exhibit 13: Pipers Bluff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting, Inc., dated June 4, 2014 Exhibit 14: Pipers Bluff Environmental Checklist Supplement, prepared by ESM Consulting Engineers, LLC, dated July 30, 2014 Exhibit 15: Plat of Pipers Bluff—Supplemental Critical Area Restoration Plan, prepared by Sewall Wetland Consulting, Inc., dated June 4, 2014; revised August 21, 2014 Exhibit 16: Pipers Bluff—Mitigation, Monitoring and Maintenance Narrative, prepared by Sewall Wetland Consulting, Inc., dated June 4, 2014; revised August 25, 2014 Exhibit 17: Pipers Bluff Technical Memorandum Response, prepared by Sewall Wetland Consulting, Inc., dated June 4, 2014 Exhibit 18: Pipers Bluff Supplemental Independent Secondary Review—Wetland Mitigation, prepared by Otak, dated July 22, 2014 Exhibit 19: Comment Letters:Adkins, received December 24, 2013; Blodgett, received December 31, 2013; Donnelly, received December 31, 2013;Adkins, received January 2, 2014;Adkins, received August 19, 2014. D. FINDINGS: Having reviewed the written record in the matter,the City now makes and enters the following: 1. Request:The applicant is requesting a Variance from Critical Areas Regulations (RMC 4-3- 050L.8.b) in order to clear vegetation in a critical area buffer and install a new water utility line to cross Honey Creek. The project will also replace topsoil to the original grades, and replant Variance Report 13-001568 City of Renton Department of Commur' Economic Development Administrair -itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CR'< <!VG LUA13-001568,VAR Report of August 28,2014 Page 5 of 18 with a dense layer of native trees and shrubs to restore the function and plant community to this area. 2. Administrative Variance:The project requires a variance from RMC 4-3-050L.8.b in order to clear vegetation in a critical area buffer and install a new water utility line to cross Honey Creek. . 3. Existing Land Use:The project area is located within the Residential-Single Family(RS) land use designation.The RS designation is intended for"use as quality residential detached development organized into neighborhoods at urban densities. Honey Creek passes through the wetland at the northeast corner of the site. The stream is strongly influenced by stormwater outfalls upstream as the flow of the channel was noted to increase during rain events.The stream buffer has been noted as being very healthy with large deciduous and coniferous tree species within ail dense native understory. Honey Creek is mapped as a Class 4 stream with a required 35-foot buffer. Although Honey Creek is non-fish bearing in this reach, it is important to note that% mile downstream the stream does become fish bearing. 4. Zoning:The project site is located within the Residential =8 (R-8) dwelling units per acre zoning classification which is established to implement the Single Family•Land Use Comprehensive Plan designation. Development in the R-8 zone is intended to create opportunities for new single family residential neighborhoods and to facilitate high-quality infill development that promotes reinvestment in existing single family neighborhoods. It is intended to accommodate uses that are compatible with and support a high-quality residential environment and add to a sense of community. 5. Topography/Vegetation:The site can best be characterized as rolling with slopes that range from 2-15 percent generally sloping from the west to the east.The steepest slope on the property is approximately 15 percent in isolated areas on site. Overall topographic relief is approximately 60 feet. There are a total of 211 trees located onsite, of which 54 trees would be excluded from the tree retention requirements. Renton Municipal Code requires 30 percent tree retention for onsite trees titiat are not located within critical areas, proposed rights-of-way and access easements. Therefore,the applicant would be required to retain at least 47 trees throughout the site. The applicant has proposed to retain 12 trees outside of the critical areas and their buffers, according to the Preliminary Plat review. When the required number of protected trees cannot be retained, new trees, with a two-inch caliper or greater, shall be planted.The replacement rate shall be 12-caliper inches of new trees to replace each, protected tree removed.Therefore a total of 420-caliper inches would be required to be replaced onsite.The applicant is proposing a total of 211, 2 caliper inch replacement trees,for a total of 422-caliper inches, in order to meet the tree retention/replacement requirement. The critical areas restoration planting plan includes 46 trees, 88 shrubs, 234 groundcover plants, 87 emergent wetland plants, and 38 live stakes in the wetland and buffer mitigation area (Tract"B" of Pipers Bluff Plat). 6. Critical Areas Exemption: RMC 4-3-050C.5.a.i - iii allows for exemptions within critical areas and their buffers (including Class 4 streams and Category 2 wetlands)for conservation or preservation, enhancement, education and related activities. RMC 4-3-050C.5e.v (Roads, Parks, Public and Private Utilities) allows for Vegetation Management/Essential Tree Removal for Public or Private Utilities, Roads, and Public Parks in streams and wetlands and their buffers. Variance Report 13-001568 City of Renton Department of Commun Economic Development Administrate`" itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CRI?._, IG LUA13-001568,VAR Report of August 28,2014 Page 6 of 18 E. CONSISTENCY WITH VARIANCE CRITERIA: - Section 4-9-2508.6, "Special Review Criteria—Reasonable Use Variance—Critical Areas Regulations Only," lists 5 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: 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. That the granting of the variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and zone in which subject property is situated; The applicant contends that the proposed (and now constructed) water utility line connection was the alternative with the least impact to critical areas that was available for water service to the site. The primary impacts were clearing of vegetation along the wetland, stream bank and buffer. Prior to starting the work, the project received both a Hydraulic Project Approval HPA) from the Washington Department of Fish and Wildlife,(WDFW) with 16 provisions and a Washington State Joint Aquatic Resources Permit Application (JARPA) from the U.S. Army Corps of Engineers (USACOE), which allowed for an 8"-diameter water line to be placed in a 16"-diameter, 30'-long steel casing spanning beneath Honey Creek and its associated wetland' Exhibit 8): The pipe was placed in an excavated trench approximately 5 feet below the bed of the stream and 3 to 5 feet below the wetland surface. The 3-foot wide trench was located in the center of a 10'-wide cleared easement. The pipe was bedded in imported crushed rock or controlled density fill, and then the excavated native stream or wetland soils was placed back in the trench. Stream and wetland impacts would be temporary, and a revegetation plan has been submitted for implementation. No permanent, above-ground structures will be placed within the critical areas or critical areas buffers (Exhibit 14). No significant trees are proposed to be removed in the wetland or buffers. Staff concurs that the public policies have been evaluated by staff and through independent secondary review (Exhibits 12& 18) and that the granting of the variance will not be materially detrimental to the public welfare or injurious to the property or improvement in the vicinity and zone, provided the restoration plans and monitoring plans are carried out. 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, as alterations of the onsite stream's buffer would be altered through the proposal and as impacts have been identified within the stream's buffer area. Approval of Stream Mitigation Plan, RMC 4-3-050L.3, "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: Supplemental stream study required. The applicant shall be required to conduct a supplemental Applicant submitted a revised City of stream or lake study per RMC 4-8-120 if a site contains a Renton Critical Area Report& Variance Report 13-001568 City of Renton Department of Commw, Economic Development Administra -;'ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CF NG LUA13-001568,VAR Report of August 28,2014 Page 7 of 18 water body or buffer area and changes to buffer Supplemental Stream Study,prepared by requirements or alterations of the water body or its Sewall Wetland Consulting, Inc., dated associated buffer are proposed,either administratively or April 15,2013(Exhibit 11);updated on via a variance request. June 4, 2014(Exhibit 13). c.When Stream or Lake Mitigation Plan is Required:The Impacts.are identified and a stream applicant shall be required to conduct a stream or lake mitigation plan is required. mitigation plan per RMC 4-8-120 if impacts are identified Applicant submitted a Wetland& Creek within a supplemental stream or lake study.The approval Restoration Plan, dated July 31,2013 of the stream or lake mitigation plan by the Administrator (Exhibit 7)and a Supplemental Critical shall be based on the criteria located in subsection L3c(ii) Area Restoration Plan,prepared by of this Section. Sewall Wetland Consulting, Inc., dated June 4,2014;revised June 4, 2014(Exhibit 15). i.Timing of Mitigation Plan—Final Submittal and Final mitigation plans submitted. Commencement:When a stream or lake mitigation plan Applicant submitted Pipers Bluff Wetland is required,the applicant shall submit a final mitigation & Creek Restoration Plan (Sheets 1 plan for the approval of the Administrator prior to the through 5)prepared by The Watershed issuance of building or construction permits,whichever Company, and dated July 31,2013. comes first.The applicant shall receive written approval Applicant submitted Pipers Bluff= of the final mitigation plan prior to commencement of Mitigation, Monitoring and Maintenance any mitigation activity. Narrative,prepared by Sewall Wetland Consulting, Inc., dated June 4,2014. Applicant submitted Plat of Pipers Bluff- Supplemental Critical Area Restoration Plan,prepared by Sewall Wetland Consulting, Inc., dated June 4,2014; revised August 21,2014. ii.Criteria for Approval of Stream or Lake Mitigation Approval criteria reviewed in the boxes Plan for Alterations of Streams and Lakes or Associated below. Buffers: In order to 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)(1)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 Onsite mitigation is required and unless a finding is made that on-site mitigation is not proposed. feasible or desirable; 2)Off-Site Mitigation within Same Drainage No off-site mitigation/not required. Subbasin as Subject Site:Off-site mitigation may be allowed when located within the 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 No off-site mitigation/not required. within City Limits:Off-site mitigation may be allowed when located within the same drainage basin within the Renton City limits if it achieves equal or improved . - ecological functions within the City over mitigation • Variance Report 13-001568 City of Renton Department of Commur[ ';Economic Development Administral __ •itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CAL .IVG LUA13-001568,VAR Report of August 28,2014 Page 8 of 18 within the same drainage subbasin as the project; 4)Off-Site Mitigation'within the Same Drainage No off-site mitigation/not required. Basin Outside the City Limits:Off-site mitigation may be allowed when located within 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. b)Mitigation Type:Types of mitigation shall follow Review of preferences in the boxes the preferences in subsections L3c(ii)(b)(1)to (4)of below. this Section: 1) Daylighting(returning to open channel)of streams , Existing stream is daylighted as existing or removal of manmade salmonid migration barriers; and will stay the same. Honey Creek is mapped as a Class 4 stream by the City of Renton.Class 4 streams are "non- salmonid bearing waters during years of normal rainfall." 2) Removal of impervious surfaces in buffer areas and No impervious surfaces existed in buffer improved biological functionlI of the buffer; area.The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. 3) In-stream or in-lake mitigation as part of an Installation of an 8-inch water main, approved watershed basin restoration project; contained within a 16-inch steel sleeve, beneath Honey Creek, an associated riparian wetland,and buffers for the stream and the wetland. 4)Other mitigation suitableifor site and water body See subsection 'e' below. Equivalency or conditions that meet all other provisions for a greater is met through proposal. mitigation plan. 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 The proposed restoration includes the located to preserve or achieve contiguous riparian or replacement of topsoil within the wildlife corridors to minimize the isolating effects of excavated water line area to the original development on habitat areas,so long as mitigation of grades,and replanting with a dense layer aquatic habitat is located within the same aquatic of native trees and shrubs to restore the ecosystem as the area disturbed; and, function and plant community to this area (see The Watershed Company Mitigation Plan).The area of the disturbance from the pond failure has had soils regraded to original grades and topsoil replaced.This area will be densely planted with native trees and shrubs(see Supplemental Critical Area Restoration Plan, prepared by Sewall Wetland Consulting, Inc.)'. d)Non-Indigenous Species:Wildlife or fish species No wildlife or fish species would be not indigenous to the region shall not be introduced introduced. Plantings would only consist Variance Report 13-001568 City of Renton Department of Commur; `i Economic Development Administra ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CIA___iNG LUA13-001568,VAR Report of August 28,2014 Page 9 of 18 into a riparian mitigation area unless authorized by a of native plants,see subsection below, State or Federal permit or approval.Plantings shall be "Restrictions and Maintenance." consistent with subsection L6c of this Section;and e) Equivalent or Greater Biological Functions:The The proposed mitigation plans would Administrator shall utilize the report"City of Renton provide greater functional value than Best Available Science Literature Review and Stream what previously existed,where non- Buffer Recommendations" by AC Kindig&Company native vegetation would be replaced with and Cedarock Consultants,dated February 27,2003, native plantings that will reduce surface unless superseded with a City-adopted study,to water runoff and filter out runoff prior to determine the existing or potential ecological function. entering the stream.All runoff from the of the stream or lake or riparian habitat that is being site and NE 12th Street were undetained affected. Mitigation shall address each function prior to the recent platting process with affected by the alteration. Mitigation to compensate no water quality treatment used prior to alterations to stream/lake areas and associated buffers entering the stream and wetland. shall achieve equivalent or greater biologic and hydrologic functions and shall include mitigation for adverseimpacts upstream or downstream of the development proposal site.'No net loss of riparian habitat or water body function shall be demonstrated;t and f) Minimum Mitigation Plan Performance Standards: The proposed plantings in the area that See Subsection F8 of this Section. are downslope of the outfall have been selected for their ability to withstand some surface flows as well as periodic inundation. No impacts to these plantings should occur from the functioning outflow. g)Additional Conditions of Approval:The Mitigation measures for proposal are Administrator shall condition approvals of activities provided as part of the stream and buffer allowed within or abutting a stream/lake or its buffers, mitigation plans.These measures are as necessary to minimize or mitigate any potential listed as part of the staff recommended adverse impacts.Conditions may include, but are not decision. limited to,the following: 1) Preservation of critically important vegetation Recommended conditions are:Clearly and/or habitat features such as snags and downed marked,work limits;disposal of existing wood; vegetation off-site; BMPs used to 2) Limitation of access to the habitat area; including minimize erosion and prevent sediment fencing to deter unauthorized access; runoff; plant installation and monitoring 3)Seasonal restriction of construction activities;and performed as outlined in mitigation 4) Establishmentof a duration and timetable for plans; qualitative data concerning periodic review of mitigation activities.possible erosion,scour,,and stream geomorphic alterations in the vicinity of 1 the discharge structure;and required compliance report within 60 days of restoration. h)Based on Best Available Science:The applicant Silt fencing and erosion control BMPs shall demonstrate that the mitigation is based on have been installed to protect the consideration of the best available science as wetland and stream from further impacts described in WAC 365-195-905;or where there is an from large amounts of sediment released absence of valid scientific information,the steps in during the vault failure. Project impacts RMC 4-9-250F are followed: to stream and wetland are considered Variance Report 13-001568 City of Renton Department of Commui Economic Development Administra,r ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CT._ NG LUA13-001568,VAR Report of August 28,2014 Page 10 of 18 temporary,and proposed restoration is intended to result in no net loss of ecological functions.Wetland and riparian plantings and removal of existing invasive species are anticipated to provide a slight improvement in local ecological functions. iii. Performance Surety:The Administrator shall require A performance surety of 125%of the a performance surety to ensure completion and success wetland mitigation cost is required. of proposed mitigation, per subsection G of this Section These measures are listed as part of the and RMC 4-1-230. staff recommended decision. iv.Alternative Mitigation:The mitigation requirements Alternative mitigation is not required. set forth in this subsection L3 may be modified at the Administrator's discretion if 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 poposal subject to this subsection L shall comply with the following standards within required buffer areas: , a. Preservation of Native Vegetation: Existing native Native vegetation and trees that are vegetation shall be preservedjto the extent possible, proposed to be saved as part of the preferably in consolidated areas. minimum 30%retention requirement are not being impacted within buffer area. Restoration includes removal of all weedy/invasive species in the sites jwetland,streams and buffers as well as plantings throughout the impacted areas as well as tree underplanting within the undisturbed buffer areas.These mitigation measures should not only enhance, but improve the function of the buffer on the site. b. Revegetation Required:Where water body buffer Revegetation is required and is proposed disturbance has occurred in accordance with exemption via two cohesive restoration plans. or development permit approval or other activities, revegetation with native vegetation shall be required. c.Use of Native Species:When revegetation is required, The area will be replanted with a dense approved native species,or other appropriate species layer of native trees and shrubs to naturalized to the Puget Sound region shall be used.A restore the function and plant variety of species shall be used which serve as food or community to this area,as part of the shelter from climatic extremes and predators, and as proposed project. structure and cover for reproduction and rearing of young. d. Removal of Noxious Species:When required as a Non-native plants within the buffer work condition of approval, noxious or undesirable species of area will be removed from the site. plants shall be removed or controlled so as to not compete with native vegetation. e. Impervious Surface Restrictions:Where impervious No impervious surface area currently Variance Report 13-001568 City of Renton Department of Commur, Economic Development Administrat" °-itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CR1,, ,NG J LUA13-001568,VAR Report of August 28,2014 Page 11 of 18 surfaces exist in buffer areas, such impervious surfaces exists within the wetland, stream, and shall not be increased or expanded within the buffer buffer area. area.The extent of impervious surfaces within the buffer area may only be rearranged if the reconfiguration of impervious surfaces and restoration of prior surfaced areas is part of an enhancement proposal that improves ecological function of the area,protected by the buffer. Criteria for Permit Approval—Class 2 to 4 standards are as follows, per RMC 4-3-050L.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 Pipers Bluff proposal protects the critical Required:As a condition of any approval for any areas and their buffer through the development permit issued pursuant to this Section,the creation of Tract B.Tract C has also been property owner shall be required to create.a native proposed for mature tree preservation. growth protection area containing the stream/lake area and associated buffers based upon field investigations performed pursuant to subsection E4 of this Section; and b.At least one of the following conditions must apply: i.A proposed action meets the standard provisions of No net loss standard is met as proposed this Section and results in no net loss of regulated in the buffer mitigation proposal. riparian area or shoreline ecological function in the drainage basin where the site is located;or ii.A proposed action meets,alternative administrative No alternative standards required. standards pursuant to this Section and the proposed activity results in no 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 administrative variance provides this the proposed activity results in no net loss of regulated requirement(Exhibit 1). riparian area or shoreline ecological function in the drainage basin where the site is located. There are six criteria for Administrative Approval of Utilities in a stream buffers(RMC 4-3- 050L.8.b.i)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: StaffComments; 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: Variance Report 13-001568 City of Renton Department of Commit):" Economic Development Administrat;`' ?itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINECRi GVG LUA13-001568,VAR Report of August 28,2014 Page 12 of 18 a) Fish and wildlife habitat areas shall be avoided to the Avoidance of working in the stream maximum extent possible;and buffer is not feasible.This is the only location where the water line could be connected and therefore temporary impacts to the stream buffer were required.The stream is a non-fish bearing water.Although Honey Creek is a non- fish bearing water in this reach, roughly mile downstream of the site this creek does become fish bearing.As a result, this portion of the creek(and associated wetland) has an important function in providing a hydrologic source and attenuating low flow periods of year for the downstream fish bearing section. Adverse impacts on wildlife habitat identified as typical urban tolerant wildlife including deer, raccoon,and coyote)should be minimal.A Hydraulic Project Approval (HPA)was submitted and received for the project from WDFW and met all of their criteria for avoidance of critical habitat areas. b)The utility is designed consistent with one or more of Seasonal work shall be consistent with the following methods: the approved HPA. 1) Installation shall be accomplished by boring beneath The boring was placed below the scour the scour depth and hyporheic zone of the water body and hyporheic zone,and was approved as and channel migration zone; or appropriate'by WDFW for a stream crossing with a utility. 2)The utilities shall cross at an angle greater than sixty The angle of the crossing is greater than 60)degrees to the centerline of the channel in streams 60 degrees.The crossing was a nearly or perpendicular to the channel centerline;or perpendicular angle to the stream. minimizing impact as required. 3) Crossings shall be contained within the footprint of The stream crossing was within an an existing road or utility crossing;and existing power line easement. c) New utility routes shall avoid paralleling the stream The new water utility line avoids or following a down-valley course near the channel; and paralleling the stream or following a down-valley course as required. d)The utility installation shall not increase or decrease • The construction method and restoration the natural rate of shore migration or channel migration; plan should restore the stream to a and condition that will not increase or decrease the natural rate of shore migration or channel migration.As shown in the two mitigation plans for this project,the entire area of disturbance in the wetland and stream bank area will be densely planted with willow stakes.This will restore a dense plant community and stream bank canopy to this area. In addition,willows,are considered to be Variance Report 13-001568 City of Renton Department of Commur' Economic Development Administral° •ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CR' L VG LUA13-001568,VAR Report of August 28,2014 Page 13 of 18 very effective at soil stabilization and preventing erosion and channel migration from occurring within this portion of the stream. e)Seasonal work windows are determined and made a The work was conducted during the condition of approval; and seasonal work window approved by WDFW for the stream crossing project. f) Mitigation criteria of subsection L3c(ii)of this Section Two mitigation plans and a five year are met. monitoring plan have been submitted to the City. Recommended conditions are found within the decision section. In addition, the proposal wo u Id meet the purposes of Renton's 'wetland changes (RMC 4-3- 050M.8), which includes protection and/or restoration of wetland and buffers functions and values. The project would also meet the purposes of the stream buffer impacts (RMC 4-8-120) to ensure that activities in or affecting streams or buffers are taking action to prevent, minimize, rectify, reduce and compensate for any stream impacts. In order to ensure that the public's welfare is best served, and in order to •respond to comments received from the public regarding the disturbance of the wetland and stream Exhibit 19), staff recommends that the applicant be required to compensate, for the lost functions and values through the,dense native plantings proposed in the two mitigation plans. The project's two mitigation Iplans include 46 trees, 88 shrubs, 234 groundcover plants, 87 emergent wetland plants, and 38 live stakes in the wetland and buffer mitigation area. The area where the water extension is being provided is zoned for single-family development and water in this area of Renton, provided by King County Water District 90. The applicant has stated that King County Water District 90 has made the installation of the water line a requirement of Pipers Bluff subdivision. Staff concurs that the public policies have been evaluated and that the granting of the variance will not be materially detrimental to the public welfare or injurious to the property or improvement in the vicinity and zone provided the mitigation measures are carried out. In addition, the proposal would meet the purposes of the stream regulations within Renton's Critical Areas Regulations RMC 4-3-050A.6.a — c which includes protection of riparian habitat and functions that are important to both fish and wildlife, prevention of the loss of riparian acreage and functions, and protection of aquatic functions for salmonid species. The project would also meet the purposes of the wetland regulations within Renton's Critical Areas Regulations RMC 4-3-050A.7.a — d to ensure that activities in or affecting wetlands do not threaten public safety, cause nuisance or destroy or degrade natural wetland function and values; and that the activities preserve, protect and restore wetlands; protect the public from costs associated with repair of downstream properties resulting from erosion and flooding due to the water storage capacity of wetlands; and prevent the loss of wetland acreage and functions.These regulations can be met through BMPs and mitigation measures. b. There is no reasonable,use of the property left if the requested variance is not granted; The applicant contends that the requested critical areas variance is for the installation of the water main that was a requirement of the 28-lot subdivision, placed on the applicant by King County Water District 90. The applicant was conditioned to connect to the existing water line main and run the water line to the east part of the site across the Honey Creek in order to Variance Report 13-001568 City of Renton Department of Commu, i Economic Development Administra(y itical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CI NG LUA13-001568,VAR Report of August 28,2014 Page 14 of 18 allow for future water access to parcels east of the project. The area of wetland and stream buffer impacted by the water line extension, as well as wetland impacted by the storm water pond failure, was within a power line easement that had been cleared of most large woody vegetation. Most of this area was blackberry with some salmonberry and vine maple and had trash and debris dumped in this area. Functionally, this area prevented access to the stream and wetland as well as filtered some runoff prior to entering the stream. It also provided very minimal shading to stream waters. Although this blackberry thicket was removed, it did provide some protection to the wetland. According to the applicant, King County Water District 90 would not waive the requirement to install a redundant water line despite the impacts created from a stream and wetland crossing. Staff concurs that the proposed location is appropriate and that the applicant has demonstrated collaboration and cooperation with other agencies in identifying a practical approach to complying with the mitigation. Removing the water line would be in violation of King County Water District 90's requirements and would cause more harm to stream, wetland and buffers than just mitigating the tempoary impacts. However, staff believes that the proposed restoration plans and monitoring schedule should be required to be monitored for a period of five (5) years in order to ensure the proposed planting schedule and restoration plans , are planted and monitored accordingly. This will ensure that minimum growth levels are achieved. • c. The variance granted is they minimum amount necessary to accommodate the'proposal objectives; According to the applicant, there is one location where the water main connection can occur. The water line crosses the wetland, stream and buffer in one of the narrowest area possible creating the least potential impact possible. The water line connection was designed with the minimum necessary amount Hof disturbance and impacts to the functions of the buffer and stream. The area of temporary disturbance (15 feet) was considered to be the minimum width needed to get an excavator; through the area. Because Honey Creek was located on the northeastern portion of the site, there was no alternative location to cross the creek for the water connection to the east. The amount of disturbance to the buffer and wetland and stream from the storm pond failure was minimized during the clean-up process and according to the applicant could not be avoided. A Hydraulic Project Approval (HPA) was approved and issued by Washington Department of Fish and Wildlife (WDFW) on September 11, 2013 and met all of their criteria for avoidance of critical habitat areas. Therefore, staff concludes that the approval from WDFW was consistent with the variance criteria necessary to accomplish the desired purpose. d.. The need for the variance is not the result of actions of the applicant or property owner; and The applicant declares that this work was conducted by the previous,plat owner prior to • receiving approval for the work. Failure of the stormwater pond wall was considered to be an unexpected occurrence. Following the vault failure, sediment was removed from the stream, and the area was covered with straw and silt fences were installed. The applicant states that the pond has been retrofitted with a liner to prevent this from happening in the future. Staff concurs that the need for the critical areas variance was not the direct result of the applicant, as the requirement came from King County Water District 90 to extend the water line. The variance seeks to rectify the impacts that have already been created and removing Variance Report 13-001568 City of Renton Department of Commur 'i Economic Development Administra, vritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CI,;._,_JNG LUA13-001568,VAR Report of August 28,2014 Page 15 of 18 the installed water line, at this point, from below the creek will only exacerbate the disturbance of the stream and wetland. e. 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. The review of functions and values of wetlands streams in the project area is based upon the following documents that meet the criteria in WAC 365-195-905: A. C. Kindig & Co. and Cedarock Consultants, Inc. City of Renton: Best available science literature review and stream buffer recommendations. February 23, 2003, report to the City of Renton. Cooke, S. and A. Azous. 1997. The hydrologic requirements of common Pacifica Northwest wetland plant species. Pages 154-169 in Azous, A.L., and R.H. Horner (eds).- Wetlands and Urbanization, Implications for the future, Final Report of the Puget Sound Wetlands and Stormwater Management Research Program. Washington State Department of Ecology. Olympia, WA; King County Water and Land Resources Division; and' the University of Washington. Seattle WA. Parametrix. 2004. Best available science ordinance review. June 28, 2004, memorandum to Jones and Stokes. I Sheldon, D., T Hruby, P. Johnson, K, Harper, A. McMillan, T. Granger, S. Stanley, and E. Stockdale. 2005. Wetlands, in Washington State — Volume 1: Syntheses of the Science. Washington State Department of Ecology. Publication#05-06-006. Olympia, WA. March 2005. Walters, M., R. Teskey, and T. Hinckley. 1980. Impact of water level changes on woody riparian and wetland communities. Volume Ill: Pacific Northwest and Rocky Mountain regions. Fish and Wildlife Service, U.S. Dept. of the Interior FWS/OBS-78-94. Washington, D.C. In addition, the, following documents were reviewed and support the analysis in the Critical • Areas Study: National Marine Fisheries Service (NMFS) and the U.S. Fish and Wildlife Service (USFWS). 2008. Endangered Species Act — Section 7 Consultation Biological Opinion and Magnuson-Stevens fishery Conservation and Management Act Essential Fish Habitat Consultation for the 1-405 Tukwila to Renton Improvement Project (1-5 to SR 169 — Phase 2) Lower Cedar River, Cedar River Sixth Field HUS: 171100120106, 171100120302 King County, Washington. National Marine Fisheries Service, Northwest Region and U.S. Fish Wildlife Service, Western Washington Office, March 3, 2008. WSDOT (Washington State Department of Transportation). 2000. Wetland Functions Characterization Tool for Linear Projects.June 2000. WSDOT (Washington State Department of Transportation). 2007. Panther Creek Watershed Rehabilitation Plan: Preliminary draft for Multi-Agency Permitting Team (MAPT) review. May 2007. Where alteration of the stream buffer occurs, the proposed buffer mitigation work is required by Renton Municipal 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, at a denser covering than Variance Report 13-001568 City of Renton Department of Commul( Economic Development Administrav tical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CRC>,_r VG LUA13-001568,VAR Report of August 28,2014 Page 16 of 18 existing. The proposed plantings would provide greater native groundcover than existing and reduce stormwater runoff and filter out sediments and toxins from stormwater. The provided analysis and supplemental mitigation plan (Exhibit 15) are based on best available science. Following the stormwater failure, wetland and stream protection was limited to minimal silt fencing at the outlet to the filed vault; since than additional silt fencing and/or other temporary sediment and erosion control BMPs have been installed to protect the wetland and stream from further impacts from the large amount of sediment released during the vault failure. These protection measures aid to prevent further impacts, should such a failure occur again. The applicant stated the additional silt fences and BMPs have been installed. Therefore, staff concurs that the variance is being requested and considered using the best available science as documented above. F. CONCLUSIONS: 1. The subject site is located near the intersection of Hoquiam Ave NE and NE 12th Street. 2. The analysis of the proposal, as found in the body of the Staff Report, satisfies the requirements for the approval of a Variance from RMC 4-3-050L.8.b, provided the conditions of approval are met. 3. Comments were received from parties in the vicinity of the project and those comments are contained in the record as Exhibit 19. 4. A Critical Areas Exemption per RMC 4-3-050C.5.a.i - iii allows for exemptions within critical areas and their buffers for conservation, enhancement, education and related activities. And RMC 4-3-050C.5e.v (Roads,1 Parks, Public and Private Utilities) allows for Vegetation Management/Essential Tree Removal for Public or Private Utilities, Roads, and Public Parks. G. DECISION: The Administrative Critical Areas Variances for Conner Homes Water Utility Line Crossing the Honey Creek, File No.LUA13-001568,VAR, is approved and is subject to the following condition: 1. The applicant shall obtain final approval for the proposed Mitigation Plans (Pipers Bluff- Wetland& Creek Restoration Plan by The Watershed Company and Pipers Bluff Supplemental Critical Areas Restoration Plan by Sewall Wetland Consulting, Inc.)from the Current Planning Project Manager prior to any ground disturbing activities. 2. In order to provide an advanced level of assurance needed for installation, maintenance and monitoring of the proposed Mitigation Plans (as identified in Condition#1),the City of Renton will need a copy of the signed maintenance and monitoring contract by a qualified professional for this work. A draft (followed by a final) maintenance and monitoring contract (or contracts) shall be provided for review to the Current Planning Project Manager prior to execution of the contract.The draft contract language must ensure compliance with installation and performance standards of The Watershed Company and Sewall Wetland Consulting, Inc. restoration plans as well the maintenance and monitoring standards of the Renton Municipal Code.The scope of the contract must clearly cover the cost of plant maintenance and replacement as well.The language in the contract must also guarantee that the mitigation Variance Report 13-001568 City of Renton Department of Comma,' f Economic Development Administrar ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CA>,_4 VG LUA13-001568,VAR Report of August 28,2014 Page 17 of 18 measures perform satisfactorily for a period of five (5)years (e.g. add provisions for plant replacement and weed removal referencing compliance with the survival rates).The contract must include a compliance report within 60 days of restoration, quarterly monitoring reports for the first year and biannual reports thereafter.The draft contract must be followed up with a final signed contract once the City approves the draft version. Once the City approves the contract proposal,the applicant will need to provide a maintenance surety device (a letter of credit or irrevocable set aside letter) set at an amount totaling 125%of the cost to guarantee satisfactory performance for a minimum of five years. 3. At the conclusion of the five (5)year compliance monitoring schedule,the applicant shall provide the City's Current Planning Project Manager written verification (from a qualified wetland biologist) of completion of the planting and restoration plans. DATE OF DECISION ON LAND USE ACTION: SIGNATURE: 6414-4"e"tr7 I glIgfic( Jennifer Henning,AICP, Planning Director Date Department of Community&Economic Development TRANSMITTED this 28th day of August,2014 to the Owner/Applicant/Contact: Owner/Applicant/Contact:. Conner Homes at Pipers Bluff, LLC Rob Risinger 846 108th Ave NE,Suite 200 Bellevue,WA 98004 TRANSMITTED this 28th day of August,2014 to the Party(ies)of Record: Peter O'Kane Claudia Donnelly Brad Adkins Wespac Development LLC 10415 147th Ave SE 5210 NE 12th St 7449 W Mercer Way Renton,WA 98059. Renton,WA 98059 . Mercer Island,WA 98040, Brad Adkins Patrick Blodgett PO Box 3084 5118 NE 12th St Renton,WA 98056 Renton,WA 98057 TRANSMITTED this 28th of August,2014 to the following: Craig Burnell, Building Official Vanessa Dolbee, Current Planning Plan Review Fire Marshal Variance Report 13-001568 City of Renton Department of Commuir Economic Development Administrai, "ritical Areas Variance Report&Decision PIPERS BLUFF WATER UTILITY LINE CFL_21_VG LUA13-001568,VAR Report of August 28,2014 Page 18 of 18 H. LAND USE ACTION APPEALS, REQUEST FOR RECONSIDERATION, &EXPIRATION The administrative land use decision will become final if the decision is not appealed within 14 days of the effective date of decision. APPEAL:This administrative land use decision will become final if not appealed in writing to the Hearing Examiner on or before 5:00 PlI on September 11, 2014.An appeal of the decision must be filed within the 14-day appeal period (RCW 43.21.C.075(3);WAC 197-11-680).Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110. Additional information regarding the appeal process may be obtained from the Renton City Clerk's office, Renton City Hall— 7th Floor, (425) 430-6510. Appeals must be filed in writing,together with the required fee to the Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. 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 prio i 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. EXPIRATION:The variance(s) approvallwill expire two (2)years from the date of decision. A variance one (1)year extension may be requested pursuant to RMC 4-9-2506.17. 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,lin writing through the Hearing Examiner. All communications are public record and this permits all interested parties to know the contents of the 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. Variance Report 13-001568 E6 - 10 T23N R5E W 1/2 11110 ! J I._._ 1 aPINE r^_1` •- i_...1:1.l.r'` r I I ntlsa :U X Y, i j b J......r_. i*-,I is 5 til I FI.Id Ave NE i._. I __..._..I.._,. _-....... .._._. 3ait .y 9 •r 1 F f..._.._..../. I' ' I I , 1 I I t I i I1ehlPINI1crl g..41. 1. 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Ti _- II i i I I ._ , 1 .....J...__ NBeAW PAoAve NE 14BNAo BE 14B0r Ave EE i_ _!_p_I— -. ._ —L.;.-1 r - i { I : I 1 I ( a, 1 If (....11 x:rI.__ I 1 { I r.._.— I I I 1_I51: I f lk+ .."...-.1 141 P- . 1491h Ave BE I I f i- I ti N 01 I _ - ! } , . (-- i 1 l ._i i 1 it Ji -1 I I --p- z Z/I AA aS2I N£z L TT - La VICINITY MAP t„ :-K``i_li '' :{ s..,:F-'..-+..,_`,.I,t.,:..,i_y;k:s.3F -:1T, .,:;_" :t,rw_;;:F, .i t. t i:1s P S_.-,:..: I I ,F.r,t - ;str.s f ! 4 5,0 .-' t S 7 l t EE'4 ;• - {.'' ii s. i IL _ s q1 JP Fr= :1•- r` r a f t11- f t-'4Ei4' 4id`14 P T`-Pv R'L ram t,_ a f r'' u',` m1} ...:. .,e:r-...,- ..<-.:.L_,. ..::.;_may. - •—.f, R',C. 1 '._ ,.._,; gip` :'r'` A'. - is cs Af T 4: !' - ri t n kSzF mac- ?'"\' a::• .,yam- F. - 1s .is. F 33, Wi '.'!;%''..`' J t.: , _.- ii lk f =rt z _ a ° : ti t r: Q: •Y c -'am ' s - z` _ - Id t -J7, t .•.. ' Gi t r31 E C;`t:'eC; _ ",j,r., .— 4Ei Tl'S'iti_ , ? 7: ; i[_ f a 3• .: ',: . t ._.' `. yr 1 3 f I,f :.1.ilN. . .. i..cj r SITE - t t J a`": 5ikti[,gc-- gi.-•'i `;}=_":' :; rr '4 4, ' F 1°_'`.•.,.• _ _ l t - 4 i% -• t i• - 3:'•' -'-.;---1'--F: .'..+, • _ tt ° n st3f[.aw, g-71."` mac 2Tlr E-•. utIist. _ _ V-1^_. ;•: 15 h t_EiiYC T;,:•— t.,.;t;-<<.__,. — Y'=,:.i-.t-•'n. r',t",7"' t F -a F _ - R1, stl i 2 55 i55i ` ry,<-m `1: i;,_ ,' i 1' s -- f • `; $'-r t i Ir rr fF7fY T } r .r.;"t^_:. f:J :1._—_• .!. xc_-, IYT#if1_r,- - Y' - - - - i f.: to^ e R I-: y tom r' rkr t, t{ y ig. 'T r-_a 1._ _ i ',_ .t- -'f -i'_ e;z '-, 7dpF,fT;s..._F a , Rri >r=T. 1 y • L:III Ca'4 mas ati ,,,r rr• T ,,. gin::•. t`1'=} a: J 7 ,,;..:}' e - _c-'f l''. t,.,-_ t.1, - ai.:1i,iacaTi. _ :°: - - ;!`_ _ _ ! _ '..-_u4 _` dad: ` : j• 3 a . .1;c. J t.:"mot li.._.u ii .4' :.fr: ,i:4 ___ r- '. G t'i.-.- I ik j; ;-.AE".:....L-''{'` N!.: y 2 1[. 'F- `'1_h-'' '{,.1 i%`ASS g, i..t_-.., j1I.. .( c. _ =`i. :.3. i (} 1 ire' _J .t',. 1k[}. ac%:- ;•__ iP-' t lrt.a _—— _ s'r.>_• _ __- 1_^l z' i i:f j` T.p.r-. 2 ;."2- =i._I iia.l.S',.spJ;t:rl-=.i 5 5 1 - ,:'- Ala .. x II tt AF 51' 5f-,: . 7 ..7•. T.'. T.i' !-,L.' • -4' --:'4t.:,.1 i .+:r3;_ h. :--t_.:,' e1:-u t. F--p "d LL I, - I:t 1 _iV_'r-;tea -'-: _ CftEA auo/" Qt_'': :i - - ,__,..._.,..s.,a..- e..1..=i ! fCv14 1'_=a='= *E 7"dT'':-- --u.l 70r' r ^r' l 15 The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness, or rights to the use of such information. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including,but not limited to,lost revenues or lost profits resulting from the use or misuse of the information contained on this map.Any sale of this map or information on this map is prohibited except by written permission of King County. EXHIBIT 3 NE 1/4 SEC17ON 10, TOWNSHIP. 2J N. RANGE 5 E, W.M.. 1.- 2.1:12PRELIMINARYPLATOFPIPER'S BLI,I,FF NE 1/TN ST NE IBT1T ST ‘-V.1-----•-•--2. S• 11.1111i;••••••••-••• •-•-•::-.1:::•:::-.!:::---'. ..". T .V.. • '.1 AP••••`,4r., ems.°st.-T ..."-.- 7.'•••••—Y.—.----I 1-. {......,:,__.,. ....k. -1. ,..) . 1. ,.„.,;,1.,''.,,,,*,,,yhr,, ',„,,,'cif; ..',04.1m7.1),4-7..,,...,..,,,,,-.1,....---_.-.„.,=,...i.....,....._._......,.. ..__ h ( 1 4,-.° lie',,„7,11',,,11.--1,"' I ''',' "N.-'-, s' 1 ••• .. „-•-,.. ,•1 1.f:‘; '.. . :- 1 E-,,,,•k--hop,m.. 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Arlif.SCV"21.-'. -:"...\\''-"/1 I 1.N.,i...,.0I NfIrmlel•°Say 4 . ,•. 1...Ilie IS.MY 5.11C,NP.,/4.111\1 MI Im..I.S..51(..MT n-1. m- • • et 2.messl . 1 S:ta'...,,• e i , \ t y Y%,,,, macs°BMW/a 0(•• '•-, r 1--,r PINTO imm n RIMINI* MT.WT.(SO • ow Ar wit* MMISMAYSkvi''N 6' •SURVE 0 LEGAL turstpilom Nonlinued): . r Prickor CONTACTS Asmassass,cr..,...........,.....NSSINAO ITHIC*11,Us I-.MI-DESCRIPTION: os INI. rhal.o.i-n--er-fr otteenam Wij,IL1tr ort nom •DENCHMARK:f.'.'',fiA: 2t. i77-1°"Alfm+razia.02I17,4,1„.41.'"'l-gra% 415ff2: s.fiTicasalll'os.7"•":41111AgrtifroE el,"" iiiii•141/4.4"Fsrl,"1,nr..„277Z,.,„1f.4,,,i,17"7„„L,10,-rziAz.-..72'4 Ir.— Axiaritstre,--'-'„7;,3„,,,,,,Fag= p.m/Sessaras.--TotaiNtriZ.RaekeSSA, •".6-'72.17741r/L'Irsi.Vgif'ZIA IL frMot"'•'r.:`,11rnilsurfmrorsr3afarm*ROO AS COMM SY MD ACM.VIM RECTRiNO NU JI13414 ,,,..„,,,.,,.....,,,,,,,,,,,,,,,,..,,,,,,NLANT MA SOULg4,41?,„,,,m,,„..,,s,sCA'"•.,,,,,„„„,,'°'47';,,,•'.74,,,,,,,g•..1an,E"r“”'''''147 zAr'frixtrir•WiF OMAN 41 PT COWS If NINA eccnr a.NO.OinGlitt Pall gal Arai gircarengsTAWIEStEifilsriI0fritteatkAtolANS=WIWI gc.1 7140 inZLITIO . .I/C MOM/SS MUM' MOW StSCOSIN mum,.ANI---1.1n1 „EfurcAL"nim, NOTE FOR CER77FICATION I i mir mentonr awry,4.1toiiliipt NU SLISNItYTNIr'MAR IlAer140 SOSPAINts went.Att tlijaa,fremtriasta-A•Ilja/Zare4.••ses„sktaar,oaks%04......,,,,,,,,,o.„,,,PM USSR cry am suprtsi Moat.=Ma. 1 CTItlinssI Bar SAPS ATMAAOS MO osuraltall II,1141'MOM fasfonk LEGEND: RACIS OF RFAPINGS: OF SURVEY INFORMATIONi1MSMILTxemstse/IS VISIXS isnmel soyfyrit=174,941;syszfrytbk ..„,,,,,,,,,,,,r,,,...„.... mil Ms ACITS corpus morrActs AT-MAO Ili IMAM stracttaM AI ROMP NOONTSITT AICWO roc CINITAIOIC am IMAM,AMNIA IL PR Ds riAr ar ASsmPlas A MI.III CC KAM NA=Al-al RIC NM IOOINASNOCT81. INT IONCTIANIT AND COMMAS SNOW NM= IS CASIO WTI A MT r.fmrr AY AA SIM MIIN.A.M0 onavarra°WIN glAlArZsVcfriirg orsarecrnraffr 01.911=7.51,r61.,11EN rli '41,p1r47.,Frj:FrAirdirlrfri,s ntressrr.srA-moo*tomer Far v......,..9. couNr4 ressamMIS sHaT INPEA, oe:ighS/•401q,1 . s In paw=urs•PI MS° own'MYJIImpiatcYr MMUS MM.Tv NW MYST tra MAO Sr PRO RECCR0111 MGT ., ..,...... r.......7711,0 gif, ci.,4.77,5p-a gie ,..... •1 Trhenzsg,ggpanar-- p1,7,..,1„77,,,smr. ........"--IA7 %Om,AS.4in a ...410 IF' s maw_ ISTORIo SWATS 61 pc aniNTrce,u,stAX SY INIATIOTOtt co' INNTI L-13,.. ts ass SY AM)STOMINT ARS NJOIINIUN NI gifAIIrmrAccanwmrtnassfAssmsYssrsanclalanat Estaly....11,7•:_stsmamf sessrm yisyla imcro_r_m_rnr_211rwr,1.14!f sp,:y1.4..1.72.-srzwerzzurnmn•To, to •••;„-^Ao-z•^..: ey am AS mums°Bps..SIM es or ORF.VACS MAIM NAN TS T. TITNTS ILAN.INNIRAUSOP .,, fIC; 7413 IVIF=glolstrr=mks' NJ CD1=2:7H li'.,J••'Ort',1,015 •c.ltn'.4 7:-.7:"..77.7-17.:„:I r. woossolows"'"" is. s...1 harary FM,MIT MIN SAMIN mfavrmtc .. „„,,, n. 11410S,"41...NITWIT CIIIsAld'ITIONCIAr' AM AMYX'S NO INONIF ra::ir Acamicr cr ' '''',''''''''' ' ft."'" 0300V." r'''''''''''''''t'''''''''' '''''' ''''' f'/ 7'7'''''''''''''''Me.''''' If&LCB°%IMMO BM°B.M.T.,CM s..." 3;800-424-5555 f 091,1- 741„....::,, / 4 o cs-i,NANNEE A...,a0,.. 7.. E.,,,s x Y s:ISSmsnrkil.,,,, I,. SIMPI. 077003,,rcar:suo: rty;mar SR MAP Cl'WM ITC0,10t0 MU ssam4ron AMC.,sm... WW1. orA 020 • MB NOTED 1.7 071 ZstrA7t,isassmAsS PPM II C.T I MOM=TWA VAN IT Pr I RUM/ARC t.Arer CLINACt FUT 1,:::,,,_, ... Al bk.,"" 7241.M"' A..PA•Nt RcEITNYTO°Ny war.. '164W MIASMIC/I II j( s as C .1,,,,,,. 3 ' nta.-- - Plan niMSIVA*71rA PLAT PIAN 11,-29-11 uuwo. 141. Mt lAySertammeld Tamales Cuter b. i., • T,•„a,s. ,01:601..)FaSILITNIS BY BAT E APS° ..IL,1 CASITAMAYMPC W,BENUMB PIYMMIC/Bylifing/Pubqs Worts Cas, AUG.3 1 igl'i A-NNNNAIA 1 P3ECEI]V[E[31EXHIBIT4 1 ofDEPARTMENTOFCOMMUNITY1ANDECONOMICDEVELOPMENTecity0 ENVIRONMENTAL (SEPA) DETERMINATION OF NON-SIGNIFICANCE MITIGATED (DNS-M) PROJECT NUMBER: LUA12-076;ECF, PP,MOD APPLICANT: Nadeem A. Khan, D.R.Strong Consulting Engineers, Inc. PROJECT NAME: Piper's Bluff Preliminary Plat PROJECT DESCRIPTION: I The applicant is•requesting Preliminary Plat approval and Environmental SEPA) Review for the subdivision of an existing 5 acre parcel into 30 lots.The project site is located within the Residential -8 (R-8) dwelling units per acre zoning classification. Access to the plat is proposed via Hoquiam Ave NE via two new curb cuts, which is proposed to be improved as part of the plat improvements. A portion of a Category 2 wetland is located on the northeastern poriton of the site as well as a Class 4 stream. PROJECT LOCATION: 1166 and 1178 Hoquiam Ave NE LEAD AGENCY: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 October 26, 2012. 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: October 12,2012 DATE OF DECISION: October 8,2012 SIGNATURES: U 1 Z o fF/ i z_ o Mark eterson 'Adriiinistrator tGreggZimmerman,Administrator Public Works Department Date Fire&Emergency Services Date 10I Z.,Ok 16(q1z,Terry Higashiyama,Administrator C.E. "Chip"Vincent, Administrator Community.Services Department Date Department of Community& Date nnnmicfcvclopment EXHIBIT 5 DEPARTMENT OF COMMUNITY City of Y AND ECONOMIC DEVELOPMENT ' u enton DETERMINATION OF NON-SIGNIFICANCE-MITIGATED MITIGATION MEASURES I PROJECT NUMBER: LUA12-076, ECF, PP, MOD APPLICANT: Nadeem A. Khan, D.R. Strong Consulting Engineers, Inc. PROJECT NAME: Piper's Bluff Preliminary Plat PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval and Environmental (SEPA) Review for the subdivision of an existing 5 acre parcel into 30 lots. The project site is located within the Residential -8 (R-8) dwelling units per acre zoning classification. Access to the plat is proposed via Hoquiam Ave NE via two new curb cuts, which is proposed to be improved as part of the plat improvements. A portion of a Category 2 wetland is located on the northeastern poriton of the site as well as a Class 4 stream. PROJECT LOCATION: i 1166 and 1178 Hoquiam Ave NE LEAD AGENCY: The City of Renton Department of Community& Economic Development Planning Division MITIGATION MEASURES: 1. The applicant shall be required to retain',those trees located on proposed Lots 29 and.30, as they can best be used to save several existing mature trees on site and are the most suitable to locate a large numbers of replacement trees that could not be accommodated throughout the remainder of the plat. The area located in Lots 29-30 would be required to be consolidated and placed into a Tree Preservation Tract. For those replacement trees that cannot belsited within the Tree Preservation Tract or within the remainder of the plat the applicant would be required to work with the City's Parks Department to determine a "fee in lieu"for each replacement tree that could not be planted on site or a suitable off-site location to plant the remainder of the required number of replacement trees. The revised Tree Retention Plan shall be submitted to and approved by the Current Planning Project Manager and a representative of the City's Parks Department prior to construction permit approval. 2. The applicant shall pay a Parks and Recreation Impact fee, as determined by the Renton Municipal Code at the time of payment. The fee shall be payable to the City as specified by the Renton Municipal Code at the time of Final Plat Recording. 3. The applicant shall pay a Transportation Impact fee, as determined by the Renton Municipal Code at the time of payment. The fee shall be payable to the City as specified by the Renton Municipal Code at the time of Final Plat Recording. 4. The applicant shall pay a Fire Impact fee, as determined by the Renton Municipal Code,at the time of payment. The fee shall be payable to the City as specified by the Renton Municipal Code at the time of Final Plat Recording. EXHIBIT 6 ERC Mitigation Measures Page 1 of 1 7•7 l.v (-.7•:)'.- R.1-)ntelli TEI F.1• Finiri:„: i_T;VISIOn13 -•-•;,),„ • WATERS I I ED i'sZ.,Y ,,5 ,-,;••'":"....,,- te- +I,,•••".. 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PROPOSED PLVETTNG AND ETREATUMS PUN 1 i .,TE...E.......V555',U.") s-k t ,...s.:;>-----irZIT.,,;r1 IL ix -i z zs PUNTING NOTES.DETARS.AND SPECITICATIONS S. PITICATION NOTES 744-"'L4'- IN , .\7\-T441), • 1 0 LI < 1-$4--------..• ------4•••... 1_21 ra i, \'AT'e';''' A.... '51.•:.• '',A, ftwi I-. Urmv) n NOTES Z s: 3...-----r.. '• op____,,,L-22.0 _,:,,____;;, ..,,,,,.._...,:,- x. .:-__--,;""-,_....,,....„..,-- 0, , a,____,,,_a, op_ow_____0As_a_ ____0 op-,.....f.L.F..._;... pw.----o•• .0• ow-_____,:, MA I-U (..) I. SURVEY BY OA STRONG CONSULTING Or OP\_OP---0P--0/4--.014--014----4, 04,ww= 0,---01 ...'"'S ill Br•,=A-3.-e,g-----=B?=&'----Pk.8 8g '‘' 8:: \ 8'3-' 177\ -'-'8 -----'5e:."Ps '4"----° P .\g7.----4 ENGINEERS.MR 141.201Ir WAD 14.• T. WETLANDS AND STREAM DEUNEWTED BY •'. Z smell.wETLAND CONSULTING INC.JOHE b. A-:,. .k:311 ' WETLAND&CAT 2 2012. 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LEGEND 0-I < l• •• 1 WETLAND Z Z i.......... .. rf fr..- ii,\,,,C7IFI\ 1=1 HONEY CREEK i!.. P E ,_o ,2,sf--,Q.,,,,,,F.-- Vi 1,--'' i1,-.....,STANDARD WETLAND BUFFER UNE:50,04 1.6 0 r- CDZCO STANDARD STREAM BUFFER ULOST:MO' R , - - -4 STANDARD BUILDING PETBAOC LINE:ISW 5....! . ..., iii›.. L"----------1 TEMPORARY WETLAND IMPACT:124 SF CO L13 "0 Z ›... Effi2 TEMPORARY STREAM IMPACT:113 SF % I I iiC Z Et 01_, >.°1 Z 0Vf/ TEMPORARY WETLAND BUFFER IMPACT:969 SF T.f i-r- H.4 o 62 0 F-7 MMGATION AREA:1.506 SF a. 0,3 0 r,o'z L.,_ ±..• 2 11. czi oWATERMAINAUGNEDTOAVOIDWATERMANRUNSTHROUGH rE CI- sli MIDRANGE AREA:3,a.DISTURSAI..,ICEARF4 DAMAGE TO DIMING TREE ROWS TO STEEL CASP.IG SEHEATH THEISAMVIDTHammounr. CREEK.SUNED MIN.SVCTOSERESTOREDINPLACE. .TO BE RESTORED IN PLACE. THE MAXIMUM EXTENT POSSIBLE. SEE CIVIL FOR MORE DETAIL I 7"••';1;""". 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', .•\ •-•-.,'Y7, ...‘,‘.*2N 1 -.•' .4,4- -•1. 4:1111041‘..4i 9 , \I`‘ DRAFTED: MF— CHECKED: MG 0 IPROPOSEDIMPACTSANDMITIGATIONKr20' 40' k JOB NUMBER: i 130720 .11 R: g ISCALE:I"=1 0'-0" SHEET NUMBE 2 OF 5 g I GRAVEL SPECIFICATIONS-CREEK MITIGATION AREA PLANT SCHEDULE-BUFFER MITIGATION AREA PLANT SCHEDULE-WETLAND MITIGATION AREA 1 li F STREVLSBED GRAVEL-ALL SHALL COMETOFWEIL-GRADED ROUNDED WATERS!-IEU j`U ROCK INCLUDING FINES.CONFORMING CLOSELY TO THE FOLLOWING SIZE SCIENTIFIC/COMMON NAME, SGENTIFlC/COMMON NAME x LC):\IfPA NY NA. GRADATION BY WEIGHT: SMALL TREES-ALL TREES TO BE HEALTHY WELL BRANCHED. SHRUBS-ALL SHRUBS TO BEHEALTHS FULL&000ROUS 04) Isla. <A ma, S% ACERGRCINATUM J LONICERA1NVOLUCRATA 8 750 Sixth Street South305d,, J5% n SS to I SS Mu. 30% VINE MAPLE BUCKTWTNBEPRI' 116to WoE.F JB%•Kirkland WA 98037 J to S Inches 5% - CORYLUS CORNUTA 3 RUBUS SPECTABR75 I WESTERN HAZEL ALMONBERRY PN15.B2132N1 (A33.B3T.81J6 O i e n catershedcG. cp TSHRUBS-ALL SHRUBS TO BE HEALTHY.FULLS.VIGOROUS. EMERGENES-All TO RE HEALTHY&WELL ROOTED I OEMLERIA CERACIFORMR 8cience & D e S l n OSOBERRY CARER OBNVPTA AT Y-0.O.C.O SPACING SLOUGH SEDGE v^•• A A 'I g ROSA NUTKANA 10 V i'.K 1 [ Bt { NOOTKA US SPECOAROSE j..)I i-1 I I•)-a Imo'' • RUSAIIBION ERRYU3 7 I..i 1 1.J •1, !.'tl__11 O SYMPHORICARPOSALBUS 18 ZSNOWBERRY Jul_ PEAENNIALSIGROUNDCOVEA-ALL TO RE HEALTHY&VIGOROUS S u POLYSTICHUMMUNTTUM d SWORD FERN TO 11-0.O.C.SPACING. F" al .. . ...'•tc. DISTRIBUTETHROUGHOUT Z Z s LU CLUSTERS OF NO LESS IO Z FIV THAN THREE AND NO f-D- O ED MORE THAN E OF 0 I- O r THE SAME SPECIES nl J Z r!l .• ` t£T-' 'o Rv51"\W LyI OVJ' I l ALDYFE FlLIX FEf9NA O ' t.i 1.: i `: IJ-- !r` +C:: ! LADY FERN 19 SEE ABOVE i Q L i ::f rml vJ Cl Z CO r PREPARE TOP It 1N0NES OF SOIL AS RESTORE STREAMED TO DOMINO J S,d > ZSPEOFlFDW=PATON NOTES. ORADEANO SUBSTRATE Q DSEETMSHEETFORCMVELidwTo SPEOIFlGTIONS M. LU `Sj O BNm¢EOBruRBANaTo i OS O OU. i Z BXBTINGTREE ROOTS. I t- f1 sic5', f'.i- 1 1/.'`. y I1J!Jz Imo. \••\ Jl y _ BLAMD•T MIILOI ENTDE v' I f', ,..: L- \.i i._. •i~1 y y y I RR BUFFER PUNTING AREA IMPACKMULCHPRof1 A`, f `': STEMf.SEE MIISSATON NOTES. 1) Milr-.- -,I milfrikAA — A-4 ..,..t ,,,, , • 11111,700 cC11Y\S+iE tiethk\ O; O0ilk. O A 1i B\i' O• 41 04AA40/11! 1. 0-41ukiiiilliP113 , .v*441. , or.W.k.,161 g MIIWVAMN'ilOriWelle '‘ ? V.,---—::-:-'•'—'-.7-7-7-::::--...... 1, sl, ,I, \\I., sl. I . \ . v,i, 0 01>___o OP Of OP_nl... Or`_ \`\< y y y y y •I oEIOE4—LLim-0R--OP OP ` OP 0P- O OP iyy \\ y y\yam i 0•\< " cP per_„= \` Vr 4 OP`y W y y SHEET SIZE: I Y' 0' O' " O ONQNAL PUN B 3P.JN'. 1 K\c a("1 W y y y" y V M1—Of'—_py_ SGUEACCOMINOLY IA C l y\\\ y y DESIGNED;MFJ'yf\' y 'y y y * I DRAFTED: MF CHECKED: MG JOB NUMBERPROPOSEDPLANTINGANDSTREAMBEDPLAN01B130720 SCALE:I"=SI-OI SHEET NUMBER: et,„...,,.P...P..t...., 3 OF 5 PLANT INSTALLATION SPECIFICATIONS PLANTING NOTES THE NOTE THESE SPECIFICATIONS ARE A LEGALLY BINDING CONTRACT I. Native plant installation'ha0 occur between September 15th and December l5th during frost-free periods WATEILS I I El) GENERAL NOTES for best survival. CO I PA Nil 1 Remove any and al Invasive weeds and their roots from the planting area Spedes targeted for removal QUALrYATSURANCE Include Hhnalayan blackberry,English holly,English Ivy.Scot's broom,Japanese kootweed.English laurel, I. PLVNTSoIALL MEET OR EXCEED THE SPEOnUTIONf OP FEDERAL STATE AND LOCAL LAWS REOSBRNG Yellow Flag Iris and morning glory. 750 SIKth Street South INSPECTION FOR PUNT DISEASE AND NSFCT CONTROL.3. Loam all eshdng lAbtio within the Intl of work The contractor h responsible for any utility damage as i PLANTS SHALL BE HEALTHY.VIGOROUS.AND WELL-FORMED,WITH WELL DEVELOPED.FIBROUS ROOT SYSTEMS,FREE PLANT result of the landarape construction. Kirkland WA 98033 FROM DEAD BRANCHES OR ROOTS. S SHALL BE FREE FROM DAMAGE CAUSED BYT LEAF EXTREMES E.PNUMOREXCESSOFMOISTURE DISEASE AND MECHANICAL INOUM IN S.PLANTS HALL BE WELL 4. Loosen any compacted soils In the planting area p425.8215242 hedT.B136FOWTEDANDOFGOODCOLOR.PUNTS SHALL BE HABITUATED TO THE OUTDOOR ENVIRONMENTAL S. Layout plant material per plan for Inspection by the restoration spedallst.Plant substitutions WO NOT be watershedca.co.com CONDITIONS INTO WHICH THUM.BE RANTED(HARDENED-OFF) allowed without the approval of the restoration spadaost. 1. TREES WITH DAMAGED,CROOKED.MULTIPLE OR BROKEN LENDERS WRLBE REJECTED.WOODY PUNTS WITH Science & DelIgnd. Install plants per planting details.Sea this sheet for plantlng derails and insallatlon soedRationaABRASIONSOFTHEBARKORSUNSULDWILLBEREJECTED. 7. Water each plant thoroughly to remove aU pockets. DURATIONS B. Install a 4'depth,coarse wood-chip layer throughout entire buffer planting area outside of OHWM mark I. PUNS/RANT MATERIALS.PUNK AND RANT MATFIIAlS SNARL INCLUDE ANY LIVE PUNT MATEWL USED ON g• THE AJLCT.THIS INCLUDES BUT IS NOT TRIITED PID FFASONES(WATTLES):TUBERS,CORMS BO CONTAINER UMS.ETC:SPRIGSSPPLUU B&B OR GS•AND LINERS. TPIANTS:LIVE 9. InsWlatemponarylMgodnn tom capable of delivering 2'of watersystemng per week to the entire planted area 1 CONTAINER GROWN.CONTONERGROWN PLANTS ARETNOSE WHOSE ROOTRALLSARE ENCLOSED IN A POT OR BAG IN WHICH THAT PUNT GREW. The landsape contractor shall maintain ailplant material until Rnd Inspection and approval by the Owner or SUBSTITUTIONSOwner's representative.AO plantings and workmanship shall be guaranteed for one year following final owner I. TIT CONTRACTORS RESPONf0MYT00BToN SPECmED MATERIALS IN ADVANCE IF SPECWLGROWM.acrepunmHE f MARKETING OR OTHERARRANGFMFNTS MUST BE MADE IN ORDER TO SUPPLY SPECIFFD MATERIALS J V L SUBSTTUTIONOF PLANT MATERIALS NOT ON THE PROJECT UST VAIL NOT BEPERMIM°UNLESSAUTHOR DIN PLANTING DETAILS 1 WRITING BY THE LANDSCAPE ARCHITECT!CONSULTANT. J 1 6 PROOF ISFRRSUBED THAT ANY PUNT MATERIAL SPECIFIED IS NOT OBTAINABLE A PROPOSAL WILL BE d CONSIDERED FOR USE OF THE NEAREST EQUIVALENT SITE OR ALTERNATIVE SPECIES WITH CORRESPONDING NOTES ZADJUSTMENTOFCONTRACTPRICE. I/I.FLAMING FIT SHRILL NOT BE LE55 THAN(2)TIMES Z a L SUCH PROOF WILL BE SUBSTANTIATED AND SUBMITTED INWMING TO THE CONSULTANT AT LEAST lO DAYS PRIOR II\ IJ/ THE WIDTH OF THE ROOT TALL DIA TO START OF WORK UNDER THBSECIION 1LOOSEN Smrenao BOTTOMS OF PtANTNGPR O LU Z INSPECTION 3.SOMPIANTNG PTAIERPUNTWG rr' LI a. `O O I. PUNTS SHALL BE SUBJECT TO INSPECTION AND APPROVAL BY THE CONSULTANT FOR CONFORMANCE TO REMOVE FROM POT 6 ROUGH-UP ROOT BAIL BEFORE IL.. f.T O L. O SPECIFICATIONS.ETHER AT TIME OF DELIVERY ONSTE OR AT THE GROWERS NURtEM.APPROVAL OF PUNT WSTAW SUNG-KENNG.UNTANGLE AND SUNENcnn0NG I LL.. MATERIALS AT ANY TIME SHALL NOT IMPAIR THE SUBSEQUENT RIGHT OF NSPECnONAND REJECTION DURING ROOTS-PRUNE IF NECESSARY.IF PLANT IS LL PROGRESS OF THE WORK EKCEPnONALLY ROOT-BOUND,00 NOT PUNT AND Imml O Q1. PLAITS INSPECTED ON SITE AND REJECTED FOR NOT MEETING SPECIFICATIONS MST BE REMOVED NMEDATELY RETURN TO NURSERY FOR AN ACCEPTABLE ALTERNATIVE FROM SITE OR RED-TAGGED AND REMOVED AS SOON AS POSSIBLE. Fri gn 0 W 3. THE CONSULTANT MAY ELECT TO INSPECT PLANT MATERWS ATTIE PUCE OF GROWTH.AFTER INSPECTION AND TITHE 4MULIX LATER HOLD BACKMULCHFROM 3r14 Q Z ACCEPTANCE,THE CONSULTANT MAY REQUIRE THE INSPECTED PUNTS BE LABELED AND RESERVED FOR.PROJECT. SUBSTITUTION OF TE RANTS WITH OTHER DDUALS EVEN OF THE SAME SPECIESAND 513E 6 TRUNOSTEMf g[I.-L-•UNACCEPTABLE. 3.MIN HT.WATER BARN V/ h4 NMEASUREMENTSOFPUNTSFINISHGRADEgrym/I1LLW1A0 I. PUNTS SHALL CONFORM TO STES 0PECIHED UNLESS SUBSTMIONS ARE MADE A IN THIS CONTRACT.3ie > z O1HEIGHTANDSPREADDIMENSIONSSPECIFIEDREFERTOMANBODYOFPLANTANDNOTBRANCHORROOTHPTOU TIP.PLANT DIMENSIONS SHALL BE MEASURED WHEN THEIR BRANCHES OaROOTS ARE IN THEIR NORMAL POSMON. 3. WHERE A RAN GEOF SITE 6 GIVEN,NO PUNT SHALL BE LESS THAN THE MINIMUM S¢E AND AT LEAST SO%OF THE fL0 N Ur PLANTS SHALL BE A WAGE A THE MEDIAN OF THE SOX RANGE.(EXAMPLE IF THE SIRE RANGE T 1rTo 10T.AT t REMOVE DEANS AND URGE ROIXSAND LACKFILL yy V SUBMITTAISLEAST SO%OF PANTS MUST BE 1ST TALL)WITHH NATIVE SOIL FIRM UP SCR-MOUND PLANT M. W OLL 0 2 0 PROPOSED FLINT SOURCES I I Z Iit I. WITHIN 4S DAYS AFTER AWARD OF THE CONTRACT,SUBMTA COMPLETE UST OF PLANT MATERIALS PROPOSED TO DIM FOOTBALL pQ'BE PROVIDED DEMONSTRATING CONFORMANCE'STH THE REQUIREMENTS SPEORED.INCLUDE THE NAMES AND 4 ADDRESSES 0pALL GROWERS AND NURSERIES. O TREE&SHRUB PLANTING DETAIL I— PRODUCT PRODUCT CERTIFICATES p I. PLANT MATERIALS UT-SUBMIT DrnonnoNTAIIONTO CONSULTANT AT LEASTIO DAYS PRIOR TO START OF WORK ND W 0- UNDERN-S SECTION TAT PUNT MATERIALS HAVE BEENOADERED.NUANCE PROCEDURE FOR INSPECTION OF SPLANTMATERALWTMCONSULTANTATTIMEOFSUBMISSION. NOTES: 1 HAVE CORES OF VENDORS OR GROWERS INVOICES OR PACING SUPS FOR ALL PLANTS MUTE DURING I.PUNT GROUNDCOVER AT SPECIFIED DISTANCE ON.CENTER(0.C) INSTALLATION.INVOICE OR PACING SUP SHOULDnlnNMOTS BY SCIENTIFIC NAME.QUANTITY AND DATE USINGN SIDES URSPACNG,TYP.DEN/FRED(AND GENETIC ORIGIN IF THAT INFORMATION WAS PREVIOUSLY REQUESTED). 1 LOOSEN SIDES AND BOTTOM OF PLANTING PIT AND REMOVE DEBRIS DELIVERY.HANDLING,65TORAGE 3.LOOSEN ROOTBOUND PLANTS BEFORE NSTALUNG 4.SOAK PT BEFORE AND AFTER INSTALLING PLANT NOTFIUTTONCONTRAC(OR MUST NOUN CONSULTANT aB HOUA ORMORE W ADVANCE OF DELIVERIES SO THAT CONSULTANT MAY ARRANGE FOR INSPECTION. I QA 1.11ST r;L,Co rs_,A\AH514iF`yl` I 4'SPECIFIED MULCH:HOLD 5 ff PLANT MATERIALS I:"\IRVA I Ar JAI//-+— -••:... V•f4Lrili•1)/I 11(16i•1_-"-BACK MULCH FROM STEMS I. TRANSPORTATION DURING SHwnNQ PUNTS SHALL BE PACKED TO PROVIDE PROTECTION AGAINST CLIMATE t_\4..----j..1nJy DRREMTS.BREAKAGE AND DRYN4 PROPER YIIJIRATONAND PREVENTION OF DAMAGE TO BARK BRANCHES, IP11- -,d.Ir/,1I//p4I- AND ROOT SYSTEMS MUST BE ENSURED. J. II,,;.,1. SCHEDWNG AND STORAGE•PAANTS SHALL BE DELIVERED A CLOSE TO PUNTING'S POSSIBLE PLANTS IN II. I SOIL AMENDMENTS STORAGE MUST BE PROTECTED AGAINST ANY CONDITION THAT B DETRIMENTAL TO THEIR CONTINUED HEALTH II: r AND VIGOR. 4 AS SPECIFIED 3. HANDLING-PUNT MATERIALS SHALL NOT BE HANDLED BY THE TRUNK LIMBS.OR FOLIAGE BUT ONLY WITTE l'- I.%r V.411, .....jrZ CONTAINER BALL BOX OR OTHER PROTECTIVE STRUCTURE.IXtFPT BAREROOT PUNTS SHALL BE KEPT IN yy I B•-.-;:.L::':.-I Il BUNDLES UNTIL PLANTING AND THEN HANDLED CAREFULLY/FINE TRUNK OR STEM. 1 iLIL=i;•••._ O 1 I A LABELS•PLANTS SHALL HAVE DURABLE LEGIBLE UBELT STATING CORRECT SCIENTIFIC NAME AND SITE TEN IIRIIPSI J- L=LPLilIP PERCENT OF CCNTAINERGROVN PUNTS N INDMDUAL POTS SHALL BE UBQED.PUNTS SUPPLIED N FUR Va•. a II,/ RACKS.BOXES.BAGS OR BUNDLES SHALLIAVEONE LABEL PER GROUP. i 'NI'r`;11 . r, wARRArrc • O GROUNDCOVER&PERENNIAL PLANTING DETAIL G . ' ?s F d E.tfi.3i.,:&d zNT Fp-1... n'T fPLANTWARRANTY I Irli if I 1?L z ).'4r i,'J:.}11 atet PLANTS MUST BE GUARANTEED TO BE TRUE TO SCIENTIFIC NAME AND SPEORE°SITE AND TO BE HEALTHY AND G CAPABLE OF VIGOROUS GROWTH.N o1 RFPIACEMENT I. PLANTS NOT FOUND MEETING ALL OF THE REQUIRED COMMONS MUST BE REMOVED ROM SITE AND REPLACED l NOTES: IMMEDIATELY AT THE CONSULTANTS DISCRETION. 1 I.MAKE SUITABLE HOLE WITH A ROCK BAR a 1 PLANTS NOT SURVIVING AFTER ONEYFARTO BE REPLACED AT THE CONTRACTORS EXPENSE OR LLpL. PLANTING TOOL Do II-1L lN II'- =IIFil1- I 115 1INSTALLPLUG DIRECTLY INTO SOIL II.,i 1 „m'.4PUNTMATERAL11=h 13'll-ll 5=0 11 tll-ll R 2- Ilk.'=Tl=l'= 1=„=u;TL- - GENERAL II=Il f-11-1 If 117 :f=II-I I. PUNTS SHALL BE NURSERY GROWN IN ACCORDANCE WITH GOOD HORTICULTURAL PRACTICES UNDER CLIMATIC IKI`-II=1 11=I`-II"II CONDmON59MIU0.T0 OR MORE SEVERETVW THOSE OFTHE PROJECTSffE 1=1p% 1If.11 I-11: Y= Il SHEET SIZE: I IICI R 1/I/ J I-a ORGINALP co IS u•alH'. t 1 PUNT SHALL BETRUE TO SPECIES AND VARIETY ORSUBfPECIFS.NO CULTNARS OR NAMED VARIETIES SHALL BE RI'tit IH i111141 i f ill- WHEN INSTALLED IN LARGE GROUPINGS, SCALE PLAN IS 1/x3 IUSEDUNLESSSPECIF6DASUIXIlkt T IT INSTALL USING TRIANGULAR SPACING r"- " i,4.i CO.w- 111L=L- II ul-.f-I I-f-J !.^-:5 r- 1 s dn.-o D-B I- AIL-_z Iv =.._. 1 t1 f yL_..tI' IQUANTITIESIL=11rII.R IIC., I, 0' 1- f-- i}It C PROIENEMANAGER .HM SEE PLANT UST ON ACCOMPANYING RUNS IIKII., el I-11111E PLAN 1'1 LL.,:r:.-. s 1., ,J I`-_-,! 1j DESIGNED; MFI1AMENDED L 1-1'-I N 4 L-v^--^ "--- I' II DRAFTED: MF- aooTTR6AlNENT I'''II NATIVE SOIL IF II CHECKED:I. CONTAINERMOVEDFOGROWNTHE POT.ES(NCWDTSdOnnon AMOUNTPUNT OTF LALLS OSE SOT AYHOLD TOGETHERThETWHENoFTHEROOT PUNT D CMG REMOVEMUSNOTBEn OT.DOTTHATASM UST BE NO ROJNG ROOT IMYEE ON NTIN ANTOPOFTSEECTED. LL 24e ON-CENTER JOB NUMBER 1. PUNTSMUSTNlT BE 0.00T410UND:THERE MUST BE NO CWCUNG ROOTS PRESENTINANYPLANT INSPECTED. f 1 E if 3. ROOTBALLS THAT TUVErRArKFDOR BROKEN WHEN REMOVED FROM THE CONTAINER RIAU.BEREJECTED. I3O72O I OEMERGENT PLANTING DETAIL SHEET NUMBER I1 S ewmm.114.m:.IKoeren 4 OF 5 U j rHr All other planted areas not directly covered by the manse.will be*oily assessed and noted as to how they Items In bold can be found above under'MaterW Specifications and Definitions.' NATE ILSI I EL) Piper's Bluff Project Mitigation Notes are meeting the pntformmcestandards. M Monleoring should take place twice mnua0y for Me Years During each monitoring I.Replace each plant found dead in the Year I monhodng Wks during the upcoming fall dondormantseason U,\i['ANY g year there shall be a spring (October 15th to March In). Executive Summary and a Me summer or fall Ash Arst-year monitoring should commence In the ist summer or fall subsequent to 2 Follow thererommendadons noted i the spring monhorhg site Mk installation. 1. General weeding 75056Kh Sweet South This Plan b for mitigating t-m p portion dInglor all planted weanggp,.,dy Impacts to critical areas and.sotlated hasten In the northeast meta of Kirkland WA 90033 the subject property due to water line conswction.The protest area Is located et 1166 Hoquhm Ave NE, Tha spring monitoring visit.1 record maintenance needs such.plant replacement and weedhg needs, a.At feast twice-yearly,remove at Invasive plants fisted by the W.Nngton State Noxious Weed Board Renton WA,King County(pared number 1023059002). The parcel is currently being developed under a Following the spring Wit the Restoration Spedalist well notify the owner and/ormalntenance crews of as Class A.B.orC from Wa planted are..More frequent weeding may be necessary based on o 4258215242 (425.812.e136 separate permit this mitigation pbobonly for aWvitles associated with running the vaster lIne Inthe northeast necessary early growing season maintenance.The second annual monitoring..will contdn the butt of the site monitoring reports.Weeding should occur by hand,being carefulattogrub o roots.Medunlcal www.watenhedco.com mmvoftle property ass.sment andwn take place In the late Bummer or early fall.Thelato'eeoeon formal monhodng visit shall means surhasstringtrimmers,shoud not be used,as can damage the stems ofim¢Oed po g report Citycompetingweeds and weed roots Dom beneath each installed plant and any 5 C 1 e n C e & Deer g ItrecordentirestthafollowingInreKsWMnedrothepfgenton. plantings Remove a0 The development area will to the maned I water throw connection along H Ave I.General sum of Wit. desirable volunteer vegetatienroaAswva of le lotion front the main plant doepgabsaccesspasystemthroughstonnergequlammart'o spring b,More frequent weeding maybe necessary dependIng on weed conditions that develop after planNE,which will not affect Honey Creek or its buffer.However,Water District 91(DIsWn)has required the 2 Counts of live and dead bees and shrubs by spades in the planted areas In Year 1,Significant dieoffshould Installation, applicant to run a water Dna'stub'from the development project to the east property boundary to allow for be reported by sped.and quantity In any monitoring year. a Do not weed the area near the lent bases with Ming trimmer d whacker/weed eater).Nativefuturemutddpalwateraamstoparcelseastoftheproject3.Estimate of native sapling tree and shrub ewer using the line-Intercept method along estabtthed transacts P d (wee In the planted area plants w easily damaged or idled,and weeds early recover after trimming. Impactsfron,the water line will be temporary,but win Involve clearing vegetation.earava0ng soil,and Instating 4.Estlmate of Invasive cover using the Me-Intercept method long established transects In the planted area. 4.Apply slow release granular lerellixereo.ch handled plant annually in the spring(byJuneI)ofVean 3,3,4 a sub-grade B'water Ma and metal casing at a depth of between 3 and 5 feet through Honey Creek(a Class 4 S.Photographic damnent:Won from fixed reference polnb In each pivoting area. c S. stream),an adjacent Category 2wetland located on either side of the stream and the anodated standard buffer 6.Inmate.Into the planting 5.Mulch the weededtrek odd, gereachheehut downith an aweeds diameter woad chip ring as natatory to Z measured 50 feet from the edge of the weds d(See She.2 of 5,Proposed Impacts and Mitigation). No P %areas,vandalism a Bihar actions that impair Intended functions ache maintain•44nch thick mulch tt and keep down weeds V permanent above-ground sbumsres will be pinned within the critlal areas or critical area buffer, planted areas' 6.During dry periods.theappficantshat appy2Inclea efwaterWroughou[the plamingamaazreeded by7.Recommendations for maintenance or repair of any potion of the mitigation arm hand or Installing Im Lbyamgxtlonsystem.H Q Overall,the proposed temporary Impacts are as follows: ZConstructionNotedandSequendng Contingency W Wedend/Stream Buffer-969 SF Note:cpecl0catlons lorhems In bald can be ford blow under"Material Spedtcatione and Definitions." d ry O E Z WetlandA-4245F r. I— D' O O Hon Creek-113 SF Note The Watershed Company[(425)822SN2]personnel,or other persons qualified to evaluate I.The contractor shall replace at dead or dying plants after the first growing season ponbbtatadon to lig 0 I— C1 e! ewtromneMal restoration prefects,shall monitor, achieve a 100 percent suMval rate CC J IyZW1•TOTAL IMPACT AREA-1$06 SF I.All silo preparation.Including Invasive weed removal.weed control,and soli prepuadon. 2.The applicant shill be responsible for Installing additional plants as needed tome.the cover and diversity 0 e K Q2.Strewn flow diversion:In-stream work b antldpated to take place during the late summer when the standards listed above In this document N uQi i1f0drfimbedbdry.However,the mntraaor shag have materials on-hand and bo prepared to divert tow W ZMitigationApproachantitheworkareaWouldunanticipatedRowsoccurduringthework.Flow bypasschat comfit oft V Mitgadon sequencing was used In developing the following approach Although the requirement to helM the temporary gravel-bagag darn and sufficiently sheded bobble pipe to capture and dbert an stream flow around U)Q waterline up to the east pared Gm prevents the applicant horn avoiding at Impacts to Milo/areas In that the entire construction work area I{{F— vldnity,the applicant has redesigned the proposed wags line to minimize Impacts.An original alignment would 3.Pb.materW Inspection ryi [W OhaveseverelydamagedtherootsofthreelargonaivecongernoescurrentlygrowingInthebitldareabuffer.a Plant material delivery Inspection. IL CZByaddingtwo4S'bends In the line near the wart edge of the buffer,the eppllcarn wit move the alignment south b.50%plant installation inspection. W V by(0 feet end cause less root damage from excavation.The southern alignment takes advantage of minim I00%plant Installation inspection. 0 = l,7 overhead poweriines.In choosing this alignment installation of the water line will require no significant tree kin *ZS O a Z removal. Genera(Work Sequence 11.1 s,\) 0 1- h.,iT i Io t 9-e g'q g5 Q Q 2 elm ig_ Y The plan will mitigate for the resuldngvegentlon removal through enhancement pbndng.Afterinsntadon and I.A3 plant Installation b to take place during the dormmt season(October(5th-March let),for best Y y iJ li Z W backfiring,the plan proposes enhancement pboeing the ondre dewed area with adbene mist of small trees IuruNd. tins avm not Interfere with the or heal i;±+.`"1 ' Q( power ),nativeshrubs,andgrotmdcevvtWedforth•w.tland 2PrcpereecwethndplamIngareabyNendhganequalproportionofcomportwishNaratlw.mcawhd F"Ic.:Iif :.,,, •iVISi: it uandsbaam/wethnd buffer conditions found at the site. sot in the top 12 inches. W 3.Prepare the buffer planting area by top dressing with a 2 Inch layer of tempest Incorporated Into the top 9 o_ Goal J Inches of soil. I.Restore the Imparted area in tho buffer and wetland to a naturally vegetated and diverse plant community. 4.Prepare the streambed.Sereambed gravel as specked for this project shall consist of well-graded rounded a Establh native small frees,shrubs,andgremdmver vegetation In areas spelled on the plan.(No rock Including ones,confomdogdosey to the following she gradation by weight e ben will be used In the cation area as h h entire beneath overhead 144 Inch 5% rE renege y powedbes) JULai .!R_ , ....r b.Monitor the performance of the installed plan over Me year.or until performance standards are met Vs to Vv Inch 30% e Maintain the Instated plan to ecldwe these goal within five years or tend performance standards are 95 ee(Si Inches 30% met 144 to 3Inches 30% 3 to5Inches 5% Performance Standards 5.Apply slow release Fertilizer(per manufacturer's s dficatloee totha lantin it of each Instated 115)1(E-,i%' 'f) - rf rf-'' The stindards listed balmy shall be used to Judge theiuccess of OM pin war Ore. Plaint InurMulch the eentire P-planting tat'--,, r IJy s l/n I 1----)--)t I.Plant Survival end Cover. 6 mulch back a few inches front p arm vnth a random, larnstenss to prevent chgeto theck8kndwoodchipmulch.Pull L ! p p damage a Achieve 100%suMM oflruta8ed vegetation by the end of Tear I.This standard can he met dnough plant establishment or through replanting oenecestvyto arNwe the mgehed number. Material Specifications and DelInitlona b.Achieve at least 60%ewer of native trees and shrubs by the end of Year 3. I.Compost Cedar Grove Compost i product.100%ve.getable compost with nocAchieveatleast80%cover of native bees and shrubs by the end of Year 5. Pos pas equivalent p g pos appreciable 1 2.Species dkerhy:Establish at least I native tree sped.,and 5 native shrub species,and one native quantities of sand,gravel,sawdust.or ether non-organic materials 0 low<wer sped.by Year S.Volunteer spades may count towards this standard 2,FertBler,Slow release.granular fert1her.Follow manufacturer'sinsrruc0ons for application.Keep 1/ 3.Invasive ewer.No more than l0%cwvbyhmasNe weed eped.Inthe mitigation enh000ementarmsIn fertiiherIn aweaWv-tight container while on rive.Note tin femiherieto be applied only lnYwaTwo and Three end any monitoring year. N We first year. 6 3.Restoration Specialist Watershed Company((425)82242421 personnel or other person qualified to 1-0 avail..environmental restoration projeOs. Monitoring Plan 014.Wood chip mulch: L This monitoring program is designed to track the motets of the mitigation the over time and to measure the e.Arborlst wood drips or equhdlent(dripped woody material)approdmately 1 Inds minimum to 3 pdegreetowhichitIsmeetingtheperformancestandardsoutlbedelsewhereInthisdocumentInchesInmaximumdimension(not sawdust or coarse hog fuel).Mulch shall not contain appreciable As-buff! Ian.monitoringni[ fan and will be d the Restoration dell.prior to the quantities of garbage.plaint metal.soil.end dlmenslonal lumber v constmcdon/demolition debris, P D report prepared P° D b,Pacific Topsoil sells a suitable equivalent woodchlp mulch called^DOT Woodchlp Mulch'at many of i=beginning of the monitoring period The tabuW plan shall be a mark-up of the planting plans Included In this their locations.Pacific Topsoil:(B00)BB3.7645 0^ pinnsoe as-bulk report wfil document ntanrydepauresInplant placement orother components from the o Do not use'hog fuer that is not"animal Mangy;as it is ground constrecdon material that comb. e jProPosdP treated wood and/or trash t Trans.'s.During the asbudt Inspection.the Restoration SpedaSee shall install one 100-foot moni[oning 1 transect that passes through both buffer and wedand area.Approximate trained Iocadon shall be marked on Maintenance Plan SHEET SIZE: the as-bu<t pin.During each monitoring event,percent cover data shall be recorded along the established ORIGINAL RAN n al'a N•. i goosed using tho fine Intercept method The eke wit be maintained for Me years following acceptance of the.built conditions.Note:specifications for Su0EACCARGWOLY. PROJECT MANAGER: HM 1 I DESIGNED: MF DRAFTED: ME— CHECKED: MG JOB NUMBER: 6 130720 pg SHEET NUMBER E I et.rnar..nw.r.raCow 5 OF 5 s 1 yy y AGENCY USE ONLY ` d Yv if n` ifi Date,received: US Army Corps, WASHINGTON STATE eo`stEngineers SeattJointAquaticResourcesPermitAgencyreference#: Application (JARPA) Form1'2 Tax Parcel#(s): USE BLACK OR BLUE INK TO ENTER ANSWERS IN THE WHITE SPACES BELOW. Part 1-Project Identification 1. Project Name (A name for.your project that yPir create,Examples:Smith's Dock or Seabrook Lane Development) [help] Pipers Bluff Water Line Crossing of-Honey Creek Part 2—Applicant The person and/or organization responsible for the project. [help] 2a. Name (Last, First, Middle) O'Kane, Peter 2b. Organization(If applicable) WestPac Development, LLC 2c. Mailing Address (Street or.Po Box) E 7449 Mercer Way 2d. City,State;Zip Mercer Island, WA 98040 2e. ,Phone'(1) • '2f: Phone(2) 2g. .Fax 2h. E-mail 206-619-2992 Peter@westpacdevelopment.com Part 3—Authorized Agent or Contact Person authorized to represent the applicant about the project. (Note: Authorized agent(s) must sign 11 b of this application.) [help] Additional forms may be required for the following permits: If your project may qualify for Department of the Armv authorization through a Regional General Permit•(RGP),contact the U.S.Army Corps of Engineers for application information(206)7( If your project might affect species listed and it a Specific Project Information Form(SPIF)or prepare a Biological Evaluation. Forms can I Entire Document http://www.nws.usace.army.mil/Missions/Civi Available Upon Request Not all cities and counties accept the JARPA line permit,contact the appropriate city or county government to make sure they accept the JA 2To access an online JARPA form with[help]scree' http://www.epermittino.wa.00v/site/alias resource For other help,contact the Governor's Office of Re EXHIBIT 8 va.gov. JARPA Revision 2012.1 Page 1 of 12 0RCV. 1 WashingtonNorth Puget Sound Department of I-? IRAULIC PROJECTAPPROV 16018MillCreekBoulevard FISH and i5.021-See appeal process at end of HPA Mill Creek,WA 98012-1296 WILDLIFE 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date:September 10, 2015. FPA/Public Notice#: N/A PERMITTEE AUTHORIZED AGENT OR CONTRACTOR WestPac Development LLC I The Watershed Company ATTENTION: Peter O'Kane I ATTENTION:Amy Summe 7449 Mercer Way I 750 6th Street S Mercer Island,WA 98040 Kirkland, WA 98033 206-619-2992 425-822-5242 1 ! Fax:425-827-8136 Project Name: Pipers Bluff Water Line Crossing of Honey Creek Project Description: An 8"-diameter water line would be placed in a 16"-diameter, 30'-long steel casing spanning beneath Honey Creek and its associated wetland. 1 PROVISIONS 1 1. The project may begin immediately and shall be completed by September 10, 2015, provided installation of conduit across Honey Creek shall occur only between June 16 and September 30. 2. Work shall be accomplished per plans and specifications submitted to and approved by the Washington Department of Fish and Wildlife (WDFW) entitled, "PIPER'S BLUFF WETLAND & CREEK RESTORATION PLAN", dated last revised July 31, 2013, except as modified by this Hydraulic Project Approval. A copy of these plans shall be available on site during construction. 3. Conduit alignment shall be as nearly perpendicular to the stream and wetland as possible. 4. The conduit shall be installed at sufficient depth so that subsequent disturbance of the streambed is avoided. 5. When using trench excavation, the trenches shall be excavated in the dry or shall be isolated from the flowing stream. Plowing, placement, and covering shall occur in a single pass of the equipment. Disturbance of the streambed as a result of the plowing operation shall be limited to ' the amount necessary to complete the project. 6. Trenches shall be backfilled per the approved plans (Provision 2), and the streambed and wetland shall be returned to preproject condition. 7. Excess spoils shall be disposed of so it will not re-enter the stream. 8. The conduit approach trench sN ying of the conduit across the stream occurs. Entire Document Available Upon Request 9. Wastewater from project activitil work area shall be routed to an area landward of the ordinar oval of fine sediment and other contaminants prior to being t Is associated with the EXHIBIT 9 Page 1 of JUSTIFICATION FOR"l'HL VARIANCE REQUEST PIPERS BLUFF CRITICAL AREA VARIANCE The water line is required by King County Water District#90. The applicant worked with the water district in an attempt to waive their requirement to install this redundant line,which would have avoided all impacts to the stream and wetland. That attempt was unsuccessful, so minimization is accomplished through implementation of the following: Crossing the stream and wetland at a very narrow point Crossing the stream and wetland in an already impacted power line.corridor. Establishing appropriate erosion and sedimentation control measures prior to in-wetland/stream work. Limiting the width of the trenching to the maximum extent practicable. Immediately stabilizing and restoring the disturbed areas consistent with appropriate erosion control plan,native plantings,and stream substrate. Because the stream is well upstream from any priority species habitat, the primary potential impact on sensitive species would be from turbidity. Turbidity will be rninimi7ed by installing a culvert to divert the stream water over and around the work area. CITY EXHIBIT 10 4 JIi11k'"a i: - _ r "'• Sewall Wetland Consulting, Inc.V'Yr' w 27641 Covington Way SE#2 Phone 25 -859-0515 Covington WA 98042 Fax 253852.4732 April 15,2013 Peter O'Kane WestPac Homes, LLC 7449 West Mercer Way Mercer Island,Washington 98'040 RE: Pipers Bluff Plat—Revised City of Renton Critical Areas Report Supplemental Stream Study SWC Job#12-135 ' 1.0 INTRODUCTION This report describes jurisdictional wetlands and streams on the 5 acre proposed Pipers Bluff Plat, located on the east side of Hoquiam Avenue NE in the City of Renton, Washington(the"site"). Specifically,the site consists of a rectangular shaped group of four(4) abutting parcels in a portion of the NE 'A of Section 10,Township 23 North, Range 5 East of the Willamett&Meridian in King County,Washington. St IS.i.d a' NE 21.d St . b P. If = FE:i51`Si St.L;t1"Si IL Y,"a • NE I._1.3: t5n15: 1 7 1:'1L.SI i_r-u m :X 1.:'?try St F t tali Si =, v} E'07:n l= n,.. t, G Sibyc9t Vd j .'= 1 av',it'St n :_r l Renton IsrK y I — Ii T fie 5!ssa'>'"A t.: 7tn mt IE•3^St SE.]i'is; n 1.'1.5. SITE SE I.:Y'•a SE I"vh St 19 U r.l I-•^51 5E I'It-.: 1 0_vEf M ll Ir:-_ i t E 1 H:•..E.'t ri 5ti I.F.1E`h P sc-o::'_ ix•7th fl1 — - _ 'I: Int-Si IE 5 :. . i=' c_ _ D Entire Document r" Available Upon Request i a EXHIBIT 11 Technical Memorandum o a To: Rocale Timmons, Senior Planner City of Renton 10230 NE Points Drive From: Jessica Redman,Wetland Scientist Suite 400 i Kevin O'Brien, Senior Ecologist Kirkland, WA 98033 Phone(425)822-4446 Fax(425)827-9577 Copies: File Date: April 9,2014 Subject: Piper's Bluff Critical Area Variance Request Review Project No.: 32385.B This review pertains to a request for a critical area variance for activities within critical areas and critical area buffers (City of Renton LUA13-001568) submitted by the applicant,WestPac Homes LLC,to the City of Renton (City). The critical area variance is for installation of an 8-inch water pipe, contained within a 16-inch steel sleeve,beneath Honey Creek, an associated riparian wetland, and buffers for the stream and the wetland. Installation of the water pipe is a required component of the 30-lot subdivision with associated access road and storm water facility on the Piper's Bluff site. The following documents were reviewed in terms of compliance with the critical areas sections of the City code: Pipers BlaffPlat—Revised City of Renton Critical Area Dort&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc., dated August 15,2012; Pipers Bluff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc.,dated April 15, 2013; Piper's Bluff/#12-135 Water Main Crossing Justification Memorandum, prepared by Sewall Wetland Consulting,Inc., dated December 4,2013; Piper's Bluff Wetland&Creek Restoration Plan (Sheets 1 through 5) prepared by The Watershed Company, and dated July 31, 2013; The Critical Area Report(CA Entire Document identify an on-site Category 2 wetland per the City of Rent Available Upon Request stream—also per the RMC— associated with the wetland. 3 the rationale for meeting the EXHIBIT 12 Otak libplivent r; , Sewall Wetland Consulting, Inc. 27641 Covington Way SE#2 Phone:253-859-0515 Covington WA 98042 Fax 253-852-4732 City of Berton • Planning Division • June 4,2014 JUL s C >;:j Rob Risinger Conner Homes i}E)1 L 4t-3 ,-q 1- l-)1 846 108th Ave NE Bellevue,WA 98004 RE: Pipers Bluff Plat—Revised City of Renton Critical Areas Report Supplemental Stream Study SWC Job#12-135 1.0 INTRODUCTION . This report describes jurisdictional wetlands and streams on the 5 acre proposed Pipers Bluff Plat, located on the east side of Hoquiam Avenue NE in the City of Renton, Washington(the "site"). Specifically,the site consists of a rectangular shaped group of four(4) abutting parcels in a portion of the NE % of Section 10,Township 23 North, Range 5 East of the Willamette Meridian in King County,Washington. tit rvc ram t Stt NE 23rd St, NE 22rd St 1 I i b m S 0 o NE 201n P1 NE 200,St SE 10-Ith St m NE 20th St w n NE 1h St z tChn St : rn R g Y 9 4ahlttnsnYSE107thSI1c` NE m k w ray z m NE 17th'SI SE 107th Pt m q• NE 17th St < - c NE 16th St a-Nti 5v t0Nd t m CDRenton tnse m 4 E i m DS a o Pis, t. Stmaetb Silt: g rt r c NE tan St NE tan St NE tan SI rn SE i121hSt C't 1 SI1E SE It2th.Q C i '' - SE 113th St m a•,rp,, -. NE I1rn Ct NE111ES1 D w m p ,-'` ,•M.: '-NE1ttn St SE 114Nt z t OLIVER M- m NE ICtn P1 ¢ HtZEN HIGH NE,,,,„PI NE e v - SCHOOL''-. o 4 EEI g Entire Document m SE 1t7 sr Available Upon Request EXHIBIT 13 CONSULTING ENGINEERS i c IF I 33400 8th Avenue South,Suite 205 Federal Way,WA 98003 fijo \% • f MEMORANDUM City of Rem tonTO: MS. ROCALE TIMMONS, CITY OF RENTON rlPlanning .^inn FROM: EVAN MANN SUBJECT: PIPER'S BLUFF ENVIRONMENTAL CHECKLIST SUPPLEMENT JUL. JOB NO:265-045-013 DATE: JULY 30, 2014 j i , The Piper's Bluff project included a SEPA review and an Environmental Review Committee Meeting that was held on October 8, 2012. With some minor adjustments,the project was issued a Determination of Non-Significance - Mitigated. However, from that time to now there have been two design changes to the plat that have created additional impacts to the wetlands and stream in the northeast corner of the property. As such, we are providing this SEPA Supplement to address the additional impacts to those critical areas. The plan is for mitigating temporary impacts to critical areas and associated buffers in the northeast portion of the subject property due to water line construction and stormwater damage. The project area is located,in 1166 Hoquiam Ave NE, Renton WA King County parcel number 1023059002). Water Main Extension Impacts'and Mitigation The development area will gain access to the municipal water system through a connection along Hoquiam Ave NE, which will not affect Honey Creek or its buffer. However, Water District 90 has required the applicant to run a water line "stub" form the development project to the east property boundary to allow for future municipal water access to parcels east of the project Impacts from the water line will be temporary, but will involve clearing vegetation, excavating soil, and installing a sub-grade 8" water line and metal casing at a depth of between 3 and 5 feet through Honey Creek (a Class 4 stream), an adjacent Category 2 wetland located on either side of the stream, and the associated standard buffer measured 50 feet from the edge of the wetland. No permanent, above-ground structures will be placed within the critical areas or critical areas buffers. Overall the proposed temporary impacts associated with the water main are as follows: Wetland/Strearr Wetland A- 424 Entire Document Honey Creek- Available Upon Request Total Impact ArE Civil Engineering • Land Surj Planning • Landscape Architecture F EXHIBIT 14 38.7104 A PORTION OF NORTHEAST QUARTER SECTION OF SECTION 10,TOWNSHIP 23 NORTH,RANGE 5 EAST,W.M.-CITY OF RENTON,WASHINGTON a; I , i 11 ti _ IE-...&...a,..-- ;..s._._..._ i L SE l t C v + i r !,iii ` 7 t.,.::.. ::'a, Yo'o doo'oa'^D> u, o`i,I P+ is >»::: i wE/, f iti,!:-. ."- 1 t'S — - -- T—•........_ _ 7® 1 Lgu,N,a vp,:yu1.li i r Cs l 4—i s wASo`' Q0;30,0,05:,,,,: 7..,. . Fn ii i Ys ii - —_— r-- o'oo 000Y A• 4, 3 li i I I it I ^' ` _ 0 hs'';';'- ..! ktOV,o,OC!•*;Mt = S\, I`z o i .r,,.,0,1:g., \ ,i .. q } I \ if o.00:cnoo.:;eLi•l B I a,.' Ii E : I \ 1 z.... !i 1 3 I 4..._... ..._....s...- \\ s,. I \\.. ;\ O. Q \ `o>,;;,_ p' f 9 1. \ \ i 212:-.. 1• tv:o TRACT"B"' \'\ I 8j`. .I L 1'1, I I •J 'i a+r^..6a \°%'•\Q `?o"<• `+., 1jII r J I L__ lllJLJI _ \r,W \ I 04';'O "rG:•'` gvrI 1 I AA: 2 I \ •, I !I I i I\r IY i r a`-ofi T s.iV I II,I I_ I I 1 1 I I \\ I molt; i>\\ 0.-. ; l.vl?t.w g ILILi1• oarN O f..2ed Do neap-........._`>...I. TRACT"D"•' y:A, 1 I I 1 r, l r 1 r------'1 r U I '1\\ 1 I \ \; \ k I`'` i_ ti O tea N •, :' ..I 1 1 I I I \ TRACT"C' ?.• 1..`,_\,_......._._....__ I 1 1B\ I! 19•'• : z0 z1 22 i1` I 23 'T„ ... i 1. \ \'1 i \ \i I \\''•\;'\ ti iifIiII24 \ L z zd. 1 z... 1 'a, z r I\ \ x I\, ... d 1'.'iI i, I I I I\ 1 1 ti I \ Il \ \\s1. 1, iK'` "' i LII,L J L J 'L J L : I 1 \\ I 1 I 1. j\ \ `j I \ ......`:,`^.•. 1 „;,'' E •• I IJ L J L \J j L, 1 f I . N.I \ ' li:•. ,:1 _ CJLaL sx-ro i F wK s 37.a. o Y ix 1 ar'`ems F,2 i r VERTICAL DATUM:IN FEETNAVOBB w3a SCALE IN FEET zy pp8sySo GENERAL NOTES CONSTRUCTION SEQUENCE I.CONSTRUCTION SHAMIN ACCORDANCE WITH ALL CITY OF RENTON CODES, O0.DINANCES,ANDREGULATIONS, 1. FLAO MOTS OFWORX AREA REQUEST AND ATTEND PROCONSIRUCHON o 0 MEETING WITH OWNER AND KING COUNTY, 2,SUCRE THE START OF ANY CONSTRUCTION,A TIITD ELRCTIOH MEETINGMUSTBEHELDBETWEENTHECITYOfRENTON,THE OWNER,ANO THE PLAN 2. CONTROL NOXIOUS WEEDS WITHIN NAMING AREAS(SE,SHEET 2). DESIGNER, i 3. INSTALL NATIVE PLANTS(SEE DETAIL DI,DETAIL 2-2,AND DETAIL 2.3). PATE:S/OPT 263ACOWOFTHESEAPPROVEDDRAWINGSMUSTBEONTHERMSITEWHENEVER CONSTRUCTION G IN PROGRESS. A. INSTALL MULCH(SEE DETAIL 3). 100 NUMBER:12 135 A.PIE CONTRACTOR SHALL 0.fSPONSITtF FOR PROVIDING ADEQUATE DESIGN BY' ES SIZE CON TRACTOR SH LL RE R, PROSCCTMF RPROVDINGA EQUATANDAM 5, CEEAN-UP AND DEMOBILOE FROM SITE. CALL 2 WORKING DAYS DRAWN BY:EA0.0 SHEET INDEX BEFORE YOU DIG CNF[KBY: ES PUBLIC,AND TO PROTHERNEEDEDOTECTPROPERTYIICONNECTIONWITHTHEPERFORMANCETHELITE.11EALIII.AND WHY OF THE Q REQUEST FROM AND ATFNDFINAL INSPFLTON WITH OWNER.I-BDO'M1`LQ'SSSS OF THEWORX SHOWN ON THESE DRAWINGS.AM WORK WITHIN THE TRAVELED SHEET NUMBER DESCRIPTION RIGMOFWAYTIUT MAT INTERRUPT NORMALTEMEICf10WSHALLRE0U10.E •• MOP UNIONCOMPLETE AS WILT/BASEUNE.MONOOgING ANDSUBMITTO THE UNDERGROUND=Err LOCATIONS SHOWN ARE ADPROKIMATE) TRHT.OF. IRROLIN MATACC INTERRURDANCE WITHAMANOALLFLOWRING SHAU.REQUIRESTANDARDS.MOP UNION(SEE SHEET 3). 1 SITEPLAf! Site PlanDRAWINGNOTES: uEASE 05TEILOCATIONSANDCATlONNR151165NDV/N ONmESEDMIVINGs.IFalv,ARE8. CDNIAACTOR ID DROV:DC IYUR OiFMIMENANCE VNDER DIpECTION OF 2 PLANTING PLAN,DETAILS,B PUNT SCHEDULE BASEDONTHE NFLOIDGPON OF THE APPARENT SURFACE EVIDENCE OF EXISTING S.SITECO21DITIONS MAY VARY OAEFDON SFASONAND/ORTIMEORYUR. OWNER'SEE SHEET 31. E,TOPOGRAPHIC MAP AND SITE PLAN PROVIDED BY UM CONSULTING —I— STRUCTURES,THE UNDERGROUND ROUTING AND CONDITION OF BURIED UTILITIES CONTRACTOR SHALL ACCOMMODATE REAMED ANOA.YTICIPAT ESITEALG E+ AS I' RSALC 1334008TH AVENUES,SUITE 205•FEDERAL WAY, 3__-- MONROR,..10,AN 4PUNTING SPECIFICATIONS HIS NOT SEEN VERIFIED OR CONFIRMED.ADDITIONAL UTILITY LOCATION AND CONDITIONS WHEN COMPLETING THE WORK.SHOWN ON THESE DRAWINGS. 9, OWNER TO COMPLETE 5 YEARS OF MONITORING(SEE SHEET 31. WASM:N^*^"^°^^"-`^ -"""---- MAPPING MAY BE REQUIRED FIELD LOCATE,VERIFY DEPTH OF,AND ADEQUATELY GfI1:EP VISUAL'PROTECT ALL UNlRlES PRIOR TO THE START Of WORK.1 OF 3 EXHIBIT 15 f t(>P')1l0(RIERDDGWDOO `'SIENA WILLOW T,__ LT. , C i''*: ICORNUSSERILEA•TP ISALYSLRENLSI-TYP SALMONERRY EDMNMAPLE` \`'C': <- ..!, : YC%_;F RUDUSSPECTANS-EYP R ULEACIALINATUMMP \ 1< , aC 4ysL, w k"•' •y_ „ COMMONNAME SCIENTIFIC NAME SDE/FORM QUANTITY SPACING z,:,....<.';641(.14U I VY 10 LD iiP45"0.. .-_ A.°"•qiI TREES u 1 rV`PO.0,0.O.0.0.0.0.0/0 ""'sR ED:Ci LR' WESTERN RFD CEDAR M 1 GALLON NTME1 R„ EST CE TNII PIMA 2G ILO CO E RED 38 AS SHOWN QFs H` C._i'`^'£':-•/ " `p%///. j.-).. V`:..^::< O SHRUBS 9'//,..._. V:HE MADIF ACEfl GR(JA'AIUM 2GALLON CONTAINERIZED 10 ASSHO'JM OMMONSNOWBERRY 'a` OOPtOlO fl O O©*. 1...aj 5 REDDSIF4 DOGWOOD COgNLLS SENICIA 3GAAON COMAINERVFD IA AS-SHOWNSYMPHORICARPDSAIBI•TMP.. tiN A, Lw oVo O m'O m 40atQ-.."-: .: ....._,._...,,...O IHDAx DIUM ` OOm00 O oo—Coo O1 "' 1WINBER0.Y HONEYSUCKLE LONICER INVOWLMTA 2GAlNN CONTAINERIZED 3 ASSHOIVN N O[MIFALA g,,,, fORMI...,,, •,FL`; 4 4 l: O 96 k;;O4O 00 3 O O O O E qzl jFj'4ro.:OODflOQ©OQ©©Q IP INDAN PLUM OFMIfRU UAAS60Rh16 1GAllON CONTAINERIZED it ASSHOWN I'. I q t-^': .\*\\ NAB','( Q \ \ \.'\\`` O SALMONBERRY AUDUSSPECTAB LA 2 GALLON CONTAINERIZED 17 AS-SHOWN PLANT INSTALLATION NOTES: f / M f '",: \O\ ` ‘ tl°:•• I\\. i r\ IRANB 0.Y NO NATYASUCKI[^y'R."SLOU HOSBEDG[ ` O— COMMON SNOWGERRY SYMPHOAICARPOSAMUN 2 GALLON CONTAINEg12ED 18 AS SHOWN g TN" N.. Y" ) ICON I OIU I-EYP 6 (CAR UPTAI-TYP 1 PROTECT AND ACCOMMODATE EXISTING NATIVE VEGETATION WITHIN PLANTING AREA g'>,. 1 ':': 1' u 1L1_:2)•, c), V'.,h .',, a' y,\ GROUNDCOVER III 2, PRIOR TO PLANT INSTALLATION,CONTROL NOXIOUS WEEDS'WITHIN EACH i'IANTNG SR:;y`'v WESTERN AED000AR,W i^Y, Y.S.:)` 5' M1 2 v>'''+.Y)AREA TARGET NOXIOUS WEED SDECESSHMLL INCLUDE THE FOLLOWING.ALL CLASS Q <.CL <"O t ^'a6ITIWAPUCATA1••77 \y?-p L Y3C'C A L< SAIAI PA LATCHUL MfrULDN 1 GALLON CONTAIx5 01 49 SEE NOTE BELOW NOTTSI ANDIDENTIC.FIED DIELATEUS SIRINGOiNY NOXIOUS WEED LIT.NODUS 5 r-t •• 3#'.-'14'i % y. • • WESTERN SWOROFERN POLS'SPOIUMMLSYRUM 1 GALLON CONTAINERIZED 49 SEE NOTE BELOW NEEDS)COCOLWORN NEILLCONSITOFTHNC CUTTING AND REMOVAL NOODLE L• X•4%, E, SHALL STEW,CANED NTIINGANHSHOOTS,SEED00OD iHF51TE \,,'. \ `17` ,In<A, i;SOS„„, ©%pr, NO SYMBOL DULL OREGONGMPE MAItONW NERVOSA 3GALLON CONTAINERIZED <] SEE NOTE BELOW RUMNG BODIES,AND STEMS,CANES, ETHOS:11 NANDFUL t Y T3'' ' ELLS . I• -''Y , : 4Ra t,.,, , 4 F RUTTING BODIES,AND LEAVES PER ENE TOLLOWINGMETXOOO l)HANDNLL:NG;D0. i \, 4 : 11 ..0 NOTE:VOCTRIANGUTAR SPACING IN BUFFER AREAS ONLY.PLANT SPECIES IN GROUPS OF 370T. 21 MANUALLY CUTTING USING MACHETES,COPPERS,AND/OR CLIPPERS.GRUB OUT 5` i\ 1 y; D,,,',^ I,';i 'rr`" , f yfL I •`\` 'S- ROOT CROWNS AND MANOR 800158Y HAND USING CIA MATTOCK,PUASKI,OR i,\ \,^{{{{{{,,,,, yyyyyy"5 C t ^> J ' F, 1 APPROVED EQUAL. A `Y ` , O n' .,. h EMERGENTS 0 PLANT MATERIAL QUALITYAND LOCATIONS SHALL REINSPECTED BY PAN DESIGNER O. R. J LL s CD PRIORTOIII.AUAIION. i i R` i ..iv r^ St J SLOUGH SEDGE CARFXOBNUPZA iDINI PLUG CO 3'OCT0.IANGUAR SPACING i 4. PLAMLOGTIONSSNOWNARE APPROXIMATE.ADJUST PLANT NCAT!ONSN yi .' \., / i/ '''' ©1 -.!---- YI • WE MUMS Z ACCONI!AODATF 511ECONDIDONS AND/OR PER PLAN DESIGNER AT TIME Oi L•\ } Rj y F W '; INSTALLATION. L \ i , <,*- . ,` , < y`, I <\ M eE r `R.1 , i`\ SUTRA WILLOW SRLINSR01EN56 A'ENE STARE 56 4'OC TRIANGULAR SPACING CD L' S. iOLNWINGPLANT INSTPLLATION,PLACE MULCH ATINE BASE OF EACH INSTALLED y. R ,E i '-""'"'-~'\— T A O L Bi, PLANT TO A MINIMUM DEPTH OF 6 INCHES.SEE DETAILS THIS SHEET. 9 /E.c'ACT E`1i",;''(f' .^. p'• ..;-,).J .:.<0 \,Le{`C'rLx':4, Ig 0is r' iT` T 1. \_&..,M..... Y PLANTING AREAS LOGYROS TOISPLAN SL ea \I II , 1;', i ,,,^,'j A IC^ `y\0,-,-E",,aj:,t,' Cl. Q Ce A 2,290 SF•WERAND/STNLAM BUFFER(FULL RESTORATION) s,,\L`: 1y " `I L} ly f `., . „l . "'rr \ ;'; , PLANT SCHEDULE n, s 0 Y 5p]S5F-WETLANDHATRCAM BUFFER(COWER ONLY) 1 tL '} T } 11 Ly.<L\\, •-„ \ • O NO SCALE ZZ 869SF-WFTWID 1 ,. LL F R,634 SF•TOTAL i L •-.\ \\\ " ) I 0 Lr Z 1'T1 5i`: ` s' T• \. \ TO..f:. I y 1‘,.L\ •'>'' \ y,\\ I I PER SPACING IN PLANTSCIIEOULL U L\ " L m}'\•,, Q A A A A A g1506SC•RESTORATION DESIGN FOR THIS AREA i•\t 1i,`Y,\\ate\,\\\ \\ `,.,\ \5\\,, ` jj BDT OTHES.SEE O.YFANLUFF-EREYIfDA 0 ) \ a 0]/L3/2p1T:-,7E WATERSN,I COMPMM. y.)/ ( 1 ( y 7/ y. 7( y[) N COPERSPACINGIN— 0 M \/"\ \0 ) PIANT SCHEDULE a O PLANTING PLAN O•PLANT SPACING SCHEMATIC FOR WILLOW STAKES AND EMERGENT PLUGS 2 SCALE-120 1 SCALE-ASSHDWN i l DIANTINSTALLAt10N NOT[S o 62:f'CI? MULCH SHALL BF A COMMERCIALLY AVAILABLE MULCH.AR80RLOT WOOD OIIPS,OR APPROVED EQUAL DERIVED FROM THE CHIPPING OF 4'LNESTAYE i p {{ TIER BRANCHES,STEMS.IEAVES,AND NEEDLES.RSNALL BE CHIPPED SO THAT A MINIMUM OF DSPCRCENT OF THE MATERIAL MEASURESA L C LESS THAN 2.5 INCHES AND AMAXIMUM OF 20 PERCENT MEASURES LESS THAN I INCH MULCH SHALL NOT CONTAIN RESIN,TANNIN,OR pn Oyl• OMIER COMPOUNDS IN QUANHTESTHATWOULD BE DETRIMENTAL ENPLANE UTE.MULCH SHALL NOT BE DERIVED FROM STUMP W 0 AS lY N j:. GRINDINGS AND SNAIL NOT CONTAIN SOIL NOG NCI OR EQUAL l5 k0TA[LEPTMLE.LOUT AR80RISTAND/ORC1141M[gLNI TREE SET STAKEGROUNDPERPENDICULAR i y i S (((( r LL TRIMMING COMPANIES ARE ACCEPTABLE MATERIAL SOURCES. TO GROUNUAT A F' ) , 4{ i` i Y% p WITH BUDS POINTING UP Y!!O 0- PLACEIOPOFRO iDALL r'Y?1y 141351 (,E}'C a a 1NOIABDVETHELEVEL ., ,yI J}Z vw l j 4 I f' .< OF NAIVE SOIL.BEFORE 7 / 9^'• it,..r\ \ X\'l v e MULCH,POTTING 5011 b y< ' SI YE I 4 \\f (7 SHOULD BE VISIBLE. MULCH AT BASE OF C A R`O' PLANT L NATIVE SOIL \ .k'\ '\f Ia u u MULCH AT BASE OF TH CK .1 t''• :s-1,7,.!V >. 6' PLACENDOi R00TBAll g*(10 IN.IJ20 AA...e xvtAeO PIANT(VMINIMUM fit 1 / ' ]INCH 400VETNE IEVEI 6 tZi/64 BEl0NGR0UND.WHERE THICXNE55) t3J 1 yr 41L Y ,`,. or NATIVE SOIL BEFORE 1 J 'FlUrIEHOIr.BAR TO OR ., }( ]'Y• MUICH,POITWG SOIL r y ryXl r. SHOULD BE VISIBLE. TOP OF ROOT MASS TO BE g.S:.:::/ `,,,Sac,,n. r:•...,r..i•'r• ..,•LEVEL WITH FINISH GRADE Ci':C:Sry :y 5,/.,\\, i\4rWe\r.'i... er5"\ ` 4 `..S`i' ii rC:S,\'rC i"IOBNUMOFRE22-13514 CUT ORCLIrLErfn S \ /e.3 \F:0,// ` CUTCPC'NGRDIIIS ;.,i;+4''• 4 /'BY.. 1DESIGN0BNU B ES AND SPREAD OR 1! ([fiIIYOIH NATIVE ANDSPREAD 00.\ S` .rI y 1 ` SOIL COMPFILL ACTevTluuD. CALL 2 WORKING DAYS DRAWN BY:EARL BOTTERRY'ROOTBALL ,„,4111 SOIL COMPACT BY HAND. 'BOTTERiLY'ROOT BALL AD;l/1y`y/ f!.a` to+ fff //.o?„',.' BEFORE YOU DIG CHECK WA CS NMNESOIL IQ NATIVE SOIL BAKE PLANTING HOLE LARGEfiifir9I4rd`y`>`$y// 1 1-800-424-555S PlantingPlan,NATNESCIL ENOUGH TO ONLY ACCOMODATE ROOTS 00 UNDERGROUND UTILITY LOCATIONS SHOWN ARE APPROXIMATE) G, NOT OVEREXCAVATE.I MIN.1S TIMES THE'I I MIN.IS TIMES TNF I COMPAC.TSOIL WITHOIN UDUTYLOCATIONS AND OAMCCERTSTICS SHOWN ON THESE DRAWINGS,IFMT,APF Detailsed Plant IW101H OF THE ROOTRALLI IWIDTH OF THE ROOTRALLi CRUSHING CO DAMAGING ROOTS. BASED ON THE MILD LOCATOR OFTHE APPARENT SURFACE EVIDENCE OR EXISTNG STRUCTURES.THE UNDERGROUND ROUTING AND CONDITION OF BURIED UTILITIES Schedule HAS NOT BEEN VERIFIED OR CONFIRMED.ADDITIONAL UTILITY LOCATION ANDPLANTINSTALLATION MAPPING MAY BE REQUIRED.FEND IOCAT.VERIFY DEPTH OE,AND ADEQUATELY SHEET: 2 NOSCAIE PROTECT ALL UDLR:ES PRIOR N THE START OF WORE. OF MONITORING&MAINTENANCE PLAN PLANT INSTALLATION SPECIFICATIONS 0 PUN GOALS,OBIECTVES,AND PERFORMANCE STANDARDS CORRECTIVE ACTIONS TO STABILIZE SOILS/SIORES WILL E PROVIDED INTHE PART I:GENERAL EDGES OF THE CONTAINER IN WHICH IT HAS GROWN.TREES AIM SHRUBS SNAIL 3.2 MULCH C RELATED MONITORING REPORT. BE Well ROOTED AND SHALL HAVE SUff!CANT ROOT MASS TO HOLD TOGETHER 2 4 PUN GOALS,OBJECTIVES.AND PERFORMANCE STANDARDS ARE OUTUNFD IN ALL WORK SWILL CONFORM TO THE SPECIFICATIONS AND DETAILS SHOWN ON THE SOIL.IN WHICH PLOT IS GROWING,WHEN REMOVED FROM THE POT. PLACE MULCH iNPOUGH ENHANCLMOU AREAS TO A MINIMUM APPLIED j TABLE 31(BELOW)THFGOAS AND OBJECTIVES OFNS PUN ARE NIERCSULR Or EACH COMPLIANCE MONITORING ASSESSMENT 511AL BE THESE DRAWINGS. DEPTH TO 61NCNS.MULCHLCU SHALL NOT TOUCH STEMS OF INSTALLED PLANTS. CONSIDERED ANIEVEO WHEN THE PERFORMANCE STANDARDS ARE SATISFIED. LATER THAN SUMMARIZED REPORT AIM SUBMITTED TO THE CITY OF RENTON CONSERVATION GRADE PLANT STOCK IS NOT ACCEPTABLE FOR USE. u i NO RESPECTIVE30OFPIE MONITORING YEAR. ALL WORK SAL CONFORM TO ALL APPLICABLE CODES,LAWS,AND PARER:PROVISIONAL ACCEPTANCE N COMPLIANCE MONITORING PLAN ORDINANCES SALVAGED PLANTS ARE NOT ACCEPTABLE FOR USE. ID B CONTINGENCY PUN AFTER COMPLETION OF THE PLAFJT INSTALLATION WORK COVERED BY THESE AS.BUAT CONTRACTOR SHALL FURNISH ALL MATERIALS,EQUIPMENT,LABOR,AND 2.2 MULCH DRAWINGS,AN INSPCCTON SHALL BE REQUESTED FROM THE OWNER.WHEN E SHOULD ANT COMPLIANCE MONITORING ASSESSMENT REVEAL THAT THE RELATEDIBEMS NECESSARY TO COMPLETE THE WORK SHOWN ONDIESE WORK COVERED BY'GIESE DRAWINGS IS COMPLETE AS DETERMINEDDY OVMLR, FOLLOWING COMPLETIONOFME RESTORATION WORK SHOWN ON THIS PLAN, PERFORAIAA'E STANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED,THE DRAWINGS AND SHALL INCLUDE ALL TOOLS,MATERIALS,PERMRS,INSPECTONS, MULCH SHALL BE COMMERCIALLY AVAIUOE'DOT WOOD OIIPNULQI`PROVISIONAL ACCEPTANCE WILL BE CERTIFIED IN SABRING BY THE OWNCA p A QUALIFIED PROFESSIONAL SHALL PREPARE AN ALBUILT OF THE COMPLETED PERMITTERSNAU K'ORK MENTHE CITY Of RENTON TOP'.VCL OP A CONTINGENCY TESTS,AND OTHER RELATED ITEMS. EQUALEDARGROVE.COMCIJLTTI501ESAU),ARRORIST CHIPS,OR APPROVED 8 WORK.THE A68UILT511ALL SUMMARIZE THE COMA LEA.INAANDANY PLAN TOGORESS THE DFf1OEH'YIIES).CONTINGENCY E PUNS GW INCLUDE,BUT EQUAL MULCH SHALL NOT CONTAIN RESIN,TANNIN,OR OMCR COMPOUNDS PART S:MAINTENANCE DEVIATIONS FROM THE APPROVED VERSION OF THIS POW.IN ADDITION,THE ARE NOTUMITE°TO,THE FOLLOWING ACTIONS: WORK SHALL BE COMPLETED BY PERSONSFXPFRIENCED IN THE CRITICAL AREA IN QUANTITIES NNTK'OULD BE DETRIMFIJTAE10 PUNT LIFE MULCH SHALL y ASSUME SHALL CONTAIN BASELINE MONTORING DATA AND PHOTOGRAPHSMTIIGATION WORK SHOWN ON THESE OAWINCS. NOT BE DERIVED FROM STUMP GRRLOINGS AND SII NOT CONTAIN SOIL HOG CONTRACTOR SHALL MAINTAIN PLANTED AREAS UNTIL GUAANTEEPER100 F FOR EACH PUNTING AREA 1. ADDIIONAL PLANT INSTALLATION;FUEL OR EQUAL ISIIOT ACCEPTABLE.SUBIERTO REVIEWBY THE NAN ACCEPTANCEIS GIVEN.MAINTENANCE SHALL INCLUDE,WELDING ABOUND TIE N `y2. EROSION CONTROL:CONTRACTOR SMALL RECOGNIZE THAT ACTUAL SITE CONDITIONS MAY VARY DESIGNER,LOCAL AR00R15T A0/O COMMERCIAL ERECT RIMMING BASE OF INSTALLED PUNTS,PRUNING OF INSTALLED PRAXIS,AND BASELINE MONITORING METHODOLOGY: S. HEROIVORY PROTECTION; BASED ON SEASON AND/CIA TIME OF YEAR. COMPANIES MAY BE ALTERNATIVE AEENABE MATERIAL SOURCES. REPLACEMENT OF PLANTS THAT APPEAR TO BE IN DISTRESS.CONTROL IS L PERANENTCOMPWNCEMONITORING PLOTS ORTRANSECRSALL R. MODIFICATION TO THE IRRIGATION REGIME(AND/OR EQUIRE°OF THE FOLLOWINGSPECIES)ALLCLASS'A`,'6',AND`VNOXEOUS DI U RE ESTABUSNED AND BASELINE MONITORING DATA SHALL BE S. PLANT SUBSTITUTIONS OF TYPE,SIZE,QUANTITY,AND LOATION. CONTRACTOR SNAIL ACCOMMODATE REALOD AND ANTICIPATED SE ONWEEDSTTIHINCLUDING NOY-REGL'LATED IV AND`C.NOXIOUS WEEDS)IDENTIFIED I' COLLECTED TO DOCUMENT VEGETATION CHARACTERISTICS WITHIN CONDE:OK WHEN COMPLETING THEVIORK SHOWN ON THESE DRAWINGS. PART 3:IKEMTON ON PIEUTEST KING COUNTY NOXIOUS WEED LIST.A MAINTENANCE PUN I $qEACHPUNTINGAREACOMPLIANCEMONITORINGPLOTSORSUCHCONTINGENCYPLANSHALLBESUBMITTEDTOTHECITYOFRENTON1STSHALLBEPROVIDEDBYCONTACTORTNTDESCRIBES,IN DETAIL THE SPECIFIC 3IRANSERSSHALLBESCALEDAPPROPRIATELYTOACCURATELYSAMPLEJANUARY33OFANTYEARWHENDEFICIENCIESAREDISCOVERED.UNLESS TAKE NECESSARY PRECAUTIONS TO PROTECT ALLPP.OPERTV,PERSONS,WORK in 33 PLANT INSTALLATION MAINTENANCE PROGRAM DEVELOPED TO SATISFY TNEAAINTEANE NATIVE WOODY PLANT SPECIES(TREES AND SHAUBS),NATIVE OTHERWISE APPROVED BY THE CITY OF RENTON,ACTIONS SPECIFIED ON AN PROGRESS,STRUCTURES,UNLEIES,WALES,NRBS,AND PAVED SURFACES REQUIREMENTS OF THIS PUN.A MAINTENANCE PLAN SHALL BE APPROVED BY L SPEARS. EMERGE EUVISEETLANLINE CLAOUOUES'CJHLECCTIID SHALL BE CONSISTENT D),AND NOXIOUS WEED FAIIUREIS SUBSTANTIAL THE CITYO REENTON MAY EXTDCONTINGENCYBEANMUSTBFCONTIETEDENDINTHECOMPLIANCEANos.v THE LLL UNDERGROUND URGIGWORKFIELDTUOOIIENPORTOCOMMENCETEVERIFYDEPTHOF,AND MENT OF WORKEQUATELY.DAMAGE ROTECT 3.1.1'f.ENEAL OWNER PRIOR T0 ISSUANCE OE PROVISIONAL ACCEPTANCE.g WITH THAT OUTLINED FOR'ANNUAL COMPUANE MONITORING`. MONITOR:NG PERIOD FOR TIE RESTORATION WORK. TO UTILITIES INCURRED ORARILNG FROM THIS CONTACT SAL RE PAID BY INSTALLATION OF PUNT MATERIALS STALL OCCUR BETWEEN NOVMBER 15 L111A• PERNEMFHOTO POINTS SALLOTESTAOUSNE°AND CONTRACTOR. AND JANUARYIS.IFSCHEDUEOFP CULANTPROREAIELHORSRECOYORIONS PART 6:GUARANTEE A 111PHOTOGRAPHSSHALLBETAKENTODOCUMENTREPRESENTATIVEMAINTENANCEPUNREQUIREINSTALLATIONDURINGALTERATIVESATES,WHITEN Ii1lRWi CONDITIONS ImaIIN EACH PLANTING AREA ALL AREAS OF WORKSALL BE KEPT CLEAN,NEAT,AND ORDERLY AT ALL TIMES. AUThORIZUTION SHALL BE OBTAINED PROM OWNER PRIOR TO PLANT 6.1 GENERAL THIS SECTION PROVIDES A GENERAL OVERVIEW OF THEMWNTNANCE PROGRAM ALL PAVED AREAS ARE TO E CLEANED DAILY FOLWWINGWORK. INSTALLATION. u''ADON OF BASELINE MONITORING PLOTS ORTRNJSECTS AS WELL AS NECESSARY TO ENSURE THE SUCCESS STANDARDS ESTABLISHED FOR THIS PLUNGER PUNTS SHALL BE GUARANTEED FOR ONE TEAR AGAINST DEFECTS OF MATERIALS L"DINTS SHALL BF SHOWN ON ME AS-BUILT DRAWINGS. ACHIEVED OWNER BE NOTIFIED IN OF DEVIATIONS TO OR CONFLICTS PLANT MATERIAL INSTALLATION SNAIL NOT OCCUR DURING FREEZING AND WORKMANSHIP.THE GUARANTEE PERIOD BEGINS AT TIE DATE OF THE WITHIN THESE DRAWINGS AND/OR SITE CONDITIONS.EXTRA WORK ARISING WEATHER OR WHEN THE GROUND IS EROZEN OR EXCLHSIVELY WET.PLANE PROVISIONAL ACCEPTANCE AND SHALL EXTEND FAR ONE YEAR HALT AND BASELINEMONITOR'FIG DATA SAIL RESUBMITTED TO THE NOXIOUS WEED CONTROL FROM FAILURE TO DO SO SHALL BE DONE AT THE CONEPACTOR'S EXPENSE MATERIALS HAVING FROZEN ROOTALLS SHALL NOT BE INSTALLED UNTIL IENTON NO LATER THAN 30 DAYS FROM TNE DATE TATINE WORK CONDITIONS ARESUOI THAT PUNTS ARE EASILY REMOVED FROMCONTAINERS. THE GUARANTEE REQUIREMENTS SNAIL BE APPLICABLE TO ANY GROWING ON THIS PLAN ILLS BEEN COMPLETED. FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THE PRIOR TO START O=ANY WORK,CONTACTORENLL REQUEST AND ATTEND A CONDITIONS THROUGH WHICH PLANTS OF USE KIND COULD BE EXPECTED TO CO.MPLIANEMOOORLNG PERIOD,NOXIOUS WEED CONTROL SHALL OCCUR ON A PRUCONSTRUCEION CONFERENCE WITH OWNER PLANT MATERIAL STORED ON-SITE SHALL BE ORGANIZED IN ROWS AND SURVIVE AND ANY DEFORMITY OR CAUSE OF DEATH,WHICH COLLD BE ANNUAL COMPLIANCE MONITORING SPOT TREATMENT BASIS WITHIN THE ENTIRE BUFFER AREA MAINTAINED AND PROTECTED AT NO ADDITIONAL COST. ATTRIBUTED TO,ORAIFCCTEU BY,THEPhYSIDLOGCAL CONDITIONS OPINE I C PRIOR TOPRE.CONSAUCTION CONFERENCE,CONTRACTOR STALL ACCURATELY INSTALLED PLANT.I HIS GUARANTEE SHALL NOT APPLY TO PLANT LOSSES DUE Z O FOLLOWING ACCEPTANCE OF THE ASBUILT BY THE CITY OF RENTON,ANNUAL TARGET NOXIOUS WEE°SPECIES SHALL INCLUDE THE FOLLOWING:ALL CLASS FM,FLAG PAINTING AREA LIMITS IN AIIIGHTY VISIBLE MANNER.RAGGING SHALL BE PLANT MATERIAL THAT CANNOT BE PLANTED WITHIN ONE)•)DAY AFTER TO ABNORMAL WEATHER CONDITIONS SUCH AS FLOODS,EXCESSIVE WIND COMPLIANCE MONITORING.SNAIL BE COMPLETED TOILA PERE00 OFFIVLSSI •B'AND`C`NOXIOUS IVEEDS(INCLUDING NON-REGULAED.0`AND'IC NOXIOUS MAINTAINED THROUGHOLN'NURK UNTIL FINAL INSPECTION BY OWNER. 'DELIVERY TO THE SEE SHALL BE`HEELED.IN•OR OTHERWISE STORED DAMAGE,DROUGHT,SEVERE FREEZING,OR ABNORMAL RAINS,AS DETERMINED U.Li. A. QUALIFIED PROFESSIONAL AND SHALL COMPRISE AS NE INVESTIGATIONND NITORING SNAIL BE COMPLETED BE A WEEDS)IDENTIFEOON THE LATEST KING COUNTY NOXIOUS WHO LIST. ATFMANNERIY IN TAT DOES NOT COMPROMISERDANCE WITH EPTED THE HEALTH OFTHEHORTICULTURAL TLIE GUARANTEE PRRO THE OWNER. LIED D IN GENERALACCOTDANCE WHIN THE APPROVED MATERIALS SNAIL BE MAINTAINED ZO i I REPORTING PER THE FOLLOWING INTERVAL' NOXIOUS WEED COTROLWOPK SHALL CONSIST OF PIE CUTTINGANO REMOVAL PART 3(MATERIALS MATERIALS.PLANT STORAGE STALL NOT OE LONGER TITAN TOUR(II WEEKS. MAINTENANCE PLAN PROVIDED BY TIE CONTACTOR. J F L6I 3FROMTHELIEOFALLNOXIOUS'WEED SPECIES STEMS,CANES,RUNNERS,SHOOTS( QUARTERLY DURING THE FIRST TEAR NEAR 1)FOLLOWING PLANT SEED PODS,FRUITING BODIES,AN°LEAVES PER TIN FOLLOWING METHODS(Ll PLANT INSTALLATION PLANT MATERIALS STORED UNDER TEMPORARY CONDITIONS SHALL BE KEPT PIE OWNER MAT REQUIRE RERUCEMENT OF DEAD OR DEFECTIVE PEANR to o S INSTALLATION(AND 1. HAND PULLING. MOIST AND PROTECTED FPOM ADVERSE WEATHER CONDITIONS PRIOR TO THE END Of THE GUARANTEE PERIOD AT NO ADDTONNCOST. O G U IN APRIL OR MAY AND AUGUST OR SEPTEMER OF TIESECOND 2. MANUALLY CUTTING USING MACHETES.LOPPE E,AND/OR CI UPPERS 2.1.1 GENERAL WHERE REQUIRED,PLANTS SHALL BE REPLACED WITH THE SPECIES AND SIZE AS (n W 0 dTHROUGHFIRETEARS(TEAR 2 THROUGH YEAR SI FOI LOWING II.. SPOT TREATMENT SHALL OCCUR MONTHLY AND/OR AT A GREATER FREQUENCY,IF A MINIMUM OF SEVEN(7)OATS NOTICE SHALL BE PROVIDED TO THE OWNER INDICATED IN INF PLANT SCHEDULE ANT ACCORDING TO THE PLANTING PUNT INSTALLATION.NECESSARY,TO CONTROL NOXIOUS WEED SPECIES TO A AMMUM OF TEN(10) PLANT MATERIAL SEE ,AND QUANTITY SHALL MEET THE STANDARDS PRIOR TO PLANT INTTSSTRION.THE OWNER SHALL BE KEPT INFORMED AS TO DETAILS AND SPECIFICATIONS SHOWN ON THESE DRAWINGS UNLESS C •• m PERCENT OR LESS COVERAGE WITHIN EACH PLANTING AREA. LISTED ON THESE DRAWINGS. NET WORK PROGRESS THROUGHOUT PLANT INSTALLATION. OTHERWISE PREMED IN SABRING BY THE OWNER.UNLESS OTHERWISE i COMPLIANCE MONITORING SHALL COMPRISE A QUANTITATIVE ASSESSMENT OF APPROVED,REPLACEMENT PLANTS SHALL BE MADE WITHIN SEVEN(71 DAYS OF L{II W y CONDITIONS WITHIN EACH PLANTING AREA FOR PURPOSES OF EVALUATING DIE DURING ALL NOXIOUS WEDCONTROL WORK,EXISTING OR PLANTING NATIVE PLANT MATERIAL SHALL BEOF ACCEPTED SIZE STANDARDS MID PROPORTIONS PUNT LOCATIONS SHALL BE AS DEPICTED ONSNEET 2.SUBJECT TOBSLATLD NOTIFICATION FRONT OWNER a Q li I CURRENT YEAR'S PERFORMANCE STANDARDS.AT THE TIME OF EACH VEGETATION SHALL BF PROTECTED FROM DAMAGE AS SPECIFIED IN AMERICAN STANDARD NURSERY STOCK(LATEST EDITIONS.AL DRAWING NOTES.THE OWNER SALLREGLW ALL PUNT LOCATIONS PRIOR TO OMONITORINGASSESSMENT,THE FOLLOWING INFORMATION SHALL BE PLANTS SHALL BE OF NORMAL HABIT OF GROWTH AND SHALL BE HEALTHY, PLANT MATERIAL INSTALLATION.THE OWNER RESERVES PIE RIGMl0 AMUSE THE.CONTRACTOR HAS THE RIGHT DURING THE ENTIRE WARRANTY PERIOD TO 1L q COLLECTED AND ASSESSED RELATIVE TO THE PERFORMANCE STANDARDS GENE BAL MAINE ENANCF. VIGOROUS,AND FREE OF DISEASE,INSECT EGGS,ADULTS,AND LARVAE.PUNT MATERIAL LOCATION(5)WITH.N PLANTING AREAS PRIOR TO PLANT ENTER UPON THE PROPERTY TOR INSPECTION AND CURATIVE TREATMENT OF ••'L yG O ESTARUSNEO FOR THE PROJECT: EACH PUNTING AREA FALL BCAININNED AT REGULAR INTERVALS DURING DIE SCIENTIFICNOMNCIATURE SHALL CONFORM TO STANDARD RANT NAMES, MATERIAL INSTALLATION. OWNER LSHALL BENOTERIALINFIEDINADVANCENGSUCHANDOFCTIA ANY RE SCORCORRECTIVE TREATMENTTILLUNDER1H! Li. y' J 0 THE CONDIDONOF INSTALLED PLTR STOCK INCLUDING COMPLIANCE MONITORING PERIOD TO PROMOTE THE SUCCESSFUL LATEST EDITION.NAMES NOT PRESENT IN THISUSIING SHALL FONIOtMi° PLANT ATERNISSALL NOT BEDRGGEDWTIHOUT PROPER ROOT AND/OR MEASURES SO AS TO ARRANGE FOR CONVENIENT ACCESS TO THE AREA O 5 Z 3 SURVIVORSHIP.HEALTH.ANDWGOR THE RATIONALE FOR POOR ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANT STOCK. ACCEPTEDSOENTIFIC NOMENCLATURE IN THE NURSERY TRADE.FORTEESAND BRANCH PROTECTION.COIITAIHERITEA PLANT MATERIALSSALLBE LIFTE00Y CURATEUEWORL SHALL OCCUR AS SOON AS POSSIBLE ATTERDERICIENOES O F.,CONDITIONS,IFHRESENE WVILL BE DETERMINED SHRUM.NO LESS MANNEOPERCNT OF EACH VARIETY OR SPECIES STALL BE CONTAINER ONLY.PLANTAIATERIALS SHALL NOT BE DROPPED OR ROOT BECOME APPARENT AND WEATHER AND SEASON PERMIT. L. F THE SPFOESCOMPOSITION Of AND AREAL COVERAGE PROVIDED BY GENERAL MAINTENANCE SALLINCWDE: ACCURATELY IABELED ATTIE TIME OF DELIVERY TO TEE SITE.WHERE LABELED. SYSTEMS DAMAGED. r Z V a NATIVE WOODY PLANT SPECTLS(TREES ANO SHRUBS)AND NATIVE PLANT MATERIALS SHALL HAVE DURABLE,LEGIBLE LABELS STATING THE AFTER EACH PUNT REPLACEMCNT.IF ANY.A MARKED PLANTING PLANitr EMERGENT PLANT SPECIES(WHERE PUNTED). 1. WEEDING OF IACIPLANRNG AREA CORRECT SCIENTIFIC PLANT NAME.PLAN E MATERIALS SHALL BE INSTALLED AS PERAPPLICAOLC NOTES AND DETAILS SHOWING THE LOCATION OF EACH REM REPLAEAT THAT TIME SNAIL BE THESPECIS COMPOSITION OFNJO AREAL COVERAGE PROVIDED BY D. RE-APPLYING BARK MULCH TO MAINTAIN A 6'MIILIMUMAPPUED DEPICTED ON THIS DAW'INGSO.PROVIDED TO OWNER.REPLACEMENT MANES SHALL BE MARKED WITH EP S0CT-I NOXIOUS WEED SPECIES. THICKNESS•YEAR 101LLY. OVERSEE PLANT MATERIALS ARE ACCEPTABLE WITH APPROVAL OF THE OWNER, COLORED SURVEY RAGGING AND SHALL BE GUARANTEED FOR ONE FULL TEAR i'r b 3. ThE PRUNING OF INSTALLED PLANTS TO REMOVE DEAD WOOD AND BUT WRIIOUTAN INCREASE IN TIE CONTRACT PRICE PUNT MATER'N 55 OF A ALL PLANTS SHALL BE THOROUGHLY WATERED WITHIN IA HOURS AFTER FOLLO'NINGPLNLTING. y COMPLIANEMONEORING METHODOLOGY( PROMOTE VIGOROUS PLANT GROWTH AND PROPER FORM. SEE REDUCED FROM THOSE SPEODED WILL NOT RE PERMUTED.ANY PUT PLANING. 7 FO A DIRER COUNT INVENTORY ASO ASSESSMENT OF AL INSTALLED A THE REPNEMEELT OF PLANRTIATAPPEAR TO BE IN DISTtESSANO/OA SIZEONNGE SHALL BE APPROVED BY OWNER PRIOR TO PUNT DELIVERY 6.2 SURVIVORSHIP N PNETSTOCK SHALL BE USED TO EVALUATE PLANT CONDITIONS. DISEASED.SITE __ _ _ _ _ ALL PUNTS SALLBE MARKED WITII NIGH VAIOIUWRLAGGING MIR PLANT SPECIES COMPOSITION AND AREAL COVERAGE SHALL BE ASSESSED 5. THE REMOVAL OF TRASH,LITER ANV/OR OTHER NON-DECOMPOSING INSTALLATION.FLAGGING 511ALL BE ATTACHED TO TEE MAIN STEM LADER,OR ANT INSTALLED TREE OR SHRUB THAT IS GREATER TO OR EQUAL TO2S PERCENT USING THE'LINE INTERCEPT TECHNIQUE'.ESTABLISHED(TURING THE DEBRIS. PLANT MATERIALS SHALL BE PACXAGED WITH CARE FOR TRANSIT TONE SITE. BRANCH OF THE AFFECTED PLANT.DEAOUR DISFIGURED WILL E CONSIDERED DEAD AND MUST BE REPUC.ED AT AS,BUILT. BRANCHES SHALL BE TIED RAMP,AND BARK SHALL BE PROTECTED TO PREVENT NO ADDITIONALONRGE.A TREFWILLBE CONSIDERED DEAD WHEN PIE MAIN G ( A' PHOTOGRAPHS OF EACH RANTING AREA SHALL BE TAKEN IROMA THE GENERALMAINTFNANE WORK SHALL OCCUR MONTHLY DURING THEGROVANG DAMAGE f ROTA CHAFING BY ROPES AND WIRES.PLANTATERULS IN STORAGE 3.12 INSTALLATION LEADER HAS DIED BACK OR WHEN A AGNIMUM OF 2S PERCENT OF THE CROWN PERANENTPIIOTO POINTS ESTABLISHED DURING THEASBUILT. SEASON AND/OR AT A FREQUENCY OTHERWISE NECESSARY 10 ENSURE THE SHALLBE PROTECTED FROM WEATHER AND PACK(13TO PROVIDE PROTECTION. GDEAD.PLANTS WILL BE CONSIDERED DISFIGURED WHEN EXCESSIVE DEAD u Z SUCESSFULSTABLOHM"IIJT AND VIGOROUS GROWTH°ETNE INSTALLED RANTS EXCAVATE APLANTING HOLE PER THE APPLICABLE DETAILS SHOWN ON THESE WOOD HAS BEEN REMOVED OR WHEN THESYMMEER`,ORTYPIGL HABIT OF DURING EAQI COMPLIANCE MONITOR/NG ASSESSMENT.EADI PUNTING AREA ANO/ORTHCCONIROLOFNDXIOUSIVEEOS PLANT ATERML DELIVERY SINLL BE TIMED APPROPRIATELY WIPE DRAWINGS. GROWN HAS BEEN IMPAIRED BETNE REMOVAL OF THE DEG W000. WILE BE ASSESSED FOR EVIDENCE OF EROSION.SCOUR,AIJD/OR DEPOSITION OF INSTALLATION TO AVOID EKTENDED STORAGE°,WE MATERIALS ON-SITE. FINES-PARTICULARLY IN THOSE AREAS 00VMSLOPF/IEOWNSTREAM OF THE REMOVE PIANT FROM CONTAINER WITII ROOFBAIL COMPLETE LT INTACT.IF 63 GUARANTEE PERIOD ACCEPTANCE G STORMWATEROURALL.WHERE NECESSARY,ECOMMNDATIDNS FOR AMINIMUM OF SEVEN VI DAYS NOTICE SNAIL BE PROVIDED TO THE OWNER CONTAINER SI OCK ISROOTBOUNO.SLASH ROOTS VERIICALLY WHIP SHARP e¢Q PRIOR TOPIATMATERIAL OELMETY TO THE SITE.DIE OWNERSINLL INSPECT KNIFE ALONG THE OUTSIDE OFROOTALL A MINIMUM OF THREE INPUES ONE TEAR AFTER PROVISIONAL ACCEPTANCE,A FINAL INSPECTION OFT•IE WORK3 5 W ALL PLANT MATERIALS AT THE TIME OF DELIVERY.TELEOLVNER RESERVES THE BEFORE PLANFING.:F PLANT HASMLVOR ROOT DAMAGE,ROOTPRUNE AS COVERED BY THIS CONTRACT STALL BE REQUESTED BY CONTRACTOR FROM a RIGHT TO REQUIRE SUBSTITUTION OR REPLACEMENTMENT OF PLANTMATERIALS NECESSARY TO REMOVE BROKEN OR['WAGED ROOTS. OWNER.INSTALLED PLANTSTAT ARE DETERMINED TO BE DEAD OR Aj:N DETERMINED TO BF DAMAGED OR OTHERWISE UNSUITABLE AT THEDME OF OTHERWISE NOT UNSATISFACTORY CONDITWN,AS DETERMINED BY THE 3 a W DEWERY TO THE SITE ALL REJECTED PUNT MATERIAL SMALL BE REMOVED INSERT FOOTBALL INTOPLANTEIG NOLEWHHOUT RENDING ORDARIAGING THE OWNER.SHALL BE REMOVED FRONT THEME AND SHALL BE REPLACED AS SOON 00 FROM THE SITE IMMEDIATELY. ROOTS SPREAD OR'BUTTERFLY ROOTALE AND PLACE ROOTFOLUR ABOVE AS CONDITIONS PERMIT.UPON COMPLETION OF THESE REQUIREMENTS( u o A TABLE 3-1:GOALS,OBJECTIVES,MONITORING SCHEDULE,&PERFORMANCE STANDARDS THE FINISHED GRADE. GUARANTEE PERIOD ALCM ANCE WILL BE CERTIFIED IN WRITING BYTIE 1 C ONCE ACCEPTED ON3EE,PIAM MATERIALS SHAH l BE PROTECTED AT ALL TIMIS OWNER. Z GOAL, OBJECTIVE' SCHEDULE' PERFORMANCE STANDARDS:'FROM TEFLVAOAUSM,AND DAMAGE,INCLUDING BUT NOT UNITED fO USE MOIST,PULVERISED,NATIVE SOIL PAR BACKFIWNG,ENSURING THAT GOOD THAT CAUSED BY ANIMALS,HUANNS,DROUGHT,WATER FROST OR FREEZING CONTACT WITH ROOTALL IS MADE.FROZEN,MUDDY,AND/OR EXCESSIVELY ieGCONDITIONS,AND WIND. ROCKY MIXTURES SALLNOT BE USED FOR BACKFRIING.IF AOGILL LS e 1D SUCCESSFULLY ESTAOUSH A TO INSTALIANO SUCCESSFULLY QUARTERLY DURING •IDO%SURSVAL BY INSTALLED PLANT STOCK AVER TEE FIRST UNSUITABLE,COMMERCIAL EYAVAILABLE TOPSOPWIM A HIGH ORGANIC DENSE NATIVE PLANT COMMUNITY ESTABLISH 342 NATIVE PLANTINGS YEAR I GROWING SEASON(YEAR 1).TI15OTFLD CAN BE MO 2.1.2 PLANT ATFRNL SOURCE CONTENT MAT BE USED TO PROPERLY ACKFILL PLANTING HOLE. WITHIN RESTORED CRITICAL AREA WHEW 8,634 SF OF RESTORED THROUGH PLANT ESTABLISHMENT REPLANTING,TABLISHMENT OR NTING,AS o E. AND CRITICAL AREA BUFFERS. WETLAND AND WETLAND/STREAM APRIL OR MAY AND OSNNECISURVIVAL AT111TVF.PIE REQUIRED PLANT NUMBERS ACCEPTABLE PUNT MATERIAL SOURCES INCLUDE) MIDWAY TIROUGH THE BACKED PROCESS,WATER DIOROUGIILY TO SEfiLE BS%DUFFER. AUGUST OR • SURVIVAL BY INSTALLED PENT STOCK AFTER THETIVRD SOIL L`x 0p, 'SEPTEMBER OF YEARS GROWING SEASON NEAR 3S.1.LOCAL NURSERIES. SHALLRANTS SHALL BE DERIVED FROM STOOL ACCLIMATED p 3,a,AS •AA%AVEAGE COVERAGE BY NAME TREES AND SHRUBS TO WESTERN WASIIINGTOH ENVIRONMENTAL CONDITIONS,HAVING BEEN COMPLETE ACKFILL AT FINISHED GRADE AND ENSURE THE PLANT IS AT PROPER AFTER ME THIRD GROWING SEASON(TEAR 31`• COCSISEEJTY CULTIVATED AND GROWN UNDER SIMILAR CONDITIONS ALIGNMENT.WATER AGAIN TO SETTLE SOIL AND ADD ADDITIONAL BACKFILL AS BOA AVERAGE COVERAGE BY NATIVE TREES AND SHRUBS ACCEPTABLE PLANT SUPPLIERS INCLUDE STORM INF GROWERS(13681 NECESSARY RP ROOTS BECOME OLPOSED. AFTER ME FIFTH GROWING SEASON(TEAR SI•• 104i8A21,CORKS NATIVE TREES AND SHRUBS G4251331.39761.SOUND NATIVE PLANTS((360)352<132),OR APPROVED EQUAL. FLAG EACH INSTALLED PLANT. LATH:S/19/2014 UP TO 2M60F THE NATIVE WOODY PLANT SPECIES 2.13 PLANT MATERIAL QUAurc HOD NUMDEO:33-GEE DESIGN BY: OVERAGE MAY BE COMPRISED OE DESIRABLE NATIVE COLONISING SPECKS. PLANT MATERIAL SHALL RENORMN IN PASTERN OF GROWTH.HEALTHY. CALL 2 WORKING DAYS DRAWN BY:PEARC SPECIES OIVEPSITY:ESTABLISHMENT OF I NATIVE TREE WELL-BRANCHED AND HAVE ALL LEADERS AND BUDS INTACT.TREES SHALL NOT BEFORE YOU DIG OIECE BY: ES SPECIES AND A MINIMUM OF A SHRUB SPECIES AFIR ME NAVE FO.OGDDS,DISFIGURING KNOTS.FRESH CUR OF LIMBS,DAMAGEDMTHGROWINGSEASON(YEAR Si LEADERS,AND/OR DEFORMED TRUNM. 1-800-424-5555 Monitoring Plan TO LIMIT NOXIOUS WEED SPECIES TO PROVIDE FALL INITIAL QUARTERLY DURING •LESS THAN SOTS COVERAGE BY ALL CU55'A",'0',AND"C PUNT MATERIALS SNAIL BE NATIVE TO THE PACIFIC NORTHWEST.PREFERABLY VNDLRGROUND UTILITY LOCATIONS SHOWN ARE APPROXIMATE) WTMINWIIHINRSEOREDCRITICAL CONTROL OFNOXIDlISWEED YEARI NOXIOUS WEEDS(INCLLIDINGNON-REGIILATCO'0`AND T. THE PUGET SOUND REGION OFWASHINGTON STATE.PLANT MATERIALS SALL UTUTY LOCATIONS AND CHARACTERISTICS SHOWN ON THESE DRAWINGS,IFAILY.ARE Planting AREA AND URICAIAREA BUFFERS. SPECIES AND TO MINIMIZE BEWEEDS)IDENTIFIED ON THE LATEST KING COUNTYOEPRDPAAIED FROM NATIVE STOCK.NO CULTIVARSORHORII[UITUAL BASED ON THEFIFIO LOCATION OF THE APPARENT SURFACE EVIDENCE OF EXISTING SpecificationsTELGENERALEALPRPRESENCEPRESENCEOFAPRI_OR MAY AND NOIOUS MED.,. VARIETIES ME ALLOWED. STRUCTURES.THE UNDERGROUND ROUTING AND CONDITION OF BURIED moor; NOXIOUS WEED SPECIES.AUGUST OR HAS NOT BEEN VERIFIED OR CONFIRMED.ADDITIONAL IIPUTYLOCATIDN AND SETEMBER OFYEAAS WHERE PROVIDED,CONTAINERIZED PTAK STOCK SHALL REGROWN IN A MAPPING AY BE REQUIRED.FETID LOCATE,VERIFY DEPTH O,AND ADEOLMTELY SHEEP 2,3,A,G S CONTAINER LONG ENOUGH TO DEVELOP A ROOT SYSTEM THAT REACHES ME PROTECT ALL°Hums PRIOR TO THE START OF WORK.3 DF 3 Sewall Wetland Consulting, Inc. ID Box 880 Phone 253-859-0515 FallGity,WA 98024 June 4,2014 Rob Risinger Conner Homes 846 108th Ave Ne, Bellevue,WA 98004 Re: Piper's Bluff—Mitigation,'Monitoring and Maintenance Narrative SWC Job#12-135 City of Renton File LUA13-001568 Mitigation Narrative The proposed mitigation consists of two mitigation plans, one for the existing water line crossing(Pipers Bluff-Wetland& Creek Restoration Plan"by The Watershed Company, and one for the disturbed areas of ithe wetland, stream and buffer from the storm pond failure (see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). 1 The Watershed Mitigation plan covers 1,506sf of buffer, wetland and stream restoration, and the Sewall Wetland Consulting Plan covers 3,159sf of wetland, stream and buffer mitigation as well as supplemental tree under planting in the remaining buffer area. The purpose of these two plants is to restore the areas that have been disturbed by the installation of the wetland line,as well as the area of disturbance from the vault failure. Performance Standards All of the proposed mitigation will be inspected 4 times in Year 1 and twice a Year in Years 2-5. As depicted on the Pipers Bluff-Wetland& Creek Restoration Plan, the following Performance Standards will be used; Entire Document Available Upon Request EXHIBIT 16 414_ Sewall Wetland Consulting, Inc. PO Box 880 Phone: 9-0515 Fall Gty,WA 98024 June 4, 2014 Rob Risinger Conner Homes 846 108th Ave NE Bellevue, WA 98004 Re: Piper's Bluff—Technical Memorandum Response SWC Job#12-135, City of Renton File LUA13-001568 Dear Rob, This letter is in response to the April, 9, 2014 Technical memorandum by OTAK regarding the Pipers Bluff Project. The following recommendations were identified by OTAK; Comment 1 No wetlandflags were present on the date of our site visit, and wetland delineation confirmation was notpossible given construction activities and site disturbance that had already occurred. However, using the plan setfrom the Wetland and Stream Restoration Plan, along with field observations, we do not believe inaccuracy of the wetland delineation to be of concern. We also agree that the wetland meets the criteria for a Category 2 wetland under RMC 4-3-050(M), and the stream appears to be a Class 4 (non-salmonid bearing intermittent hydrologic regime)system per RMC 4-3-050(L). Recommendation:None No response was necessary to this comment Comment 2 Sometime between Otak's initial and second site visits, the vault facility failed, subsequently releasing substantial amounts offine sediment from the stormwater vault into the wetland and stream system and their buffers, along with scour and downcutting at the vault discharge point(see Photos 1 and 2). Following the vault facility failure,fine sediment was noted in the stream and surrounding dal infilling of a downstream pond by fine sediment vi is, Jim) during the March 30EntireDocument site visit(Photo 4). Sucl Available UponRequest and buffer warrant compensatory mitigatio Q EXHIBIT 17 Technical Memorandum o a To: Rocale Timmons, Senior Planner City of Renton 10230 NE Points Drive From: Kevin O'Brien, Senior Ecologist Suite 400 Kirkland, WA 98033 Phone(425)822-4446 Copies: File Fax(425)827-9577 Date: July 22,2014 Pipers Bluff Supplemental Independent Subject: Secondary Review—Wetland Mitigation Project No.: 32385.B This technical memorandum provides'additional review of material submitted for the Pipers Bluff Plat project(LUA13-001568),a five-acre site located in the City of Renton. The request for a critical area variance for activities within critical areas and critical area buffers (City of Renton LUA13- 001568) submitted by the applicant—originally WestPac Homes LLC, subsequently Conner Homes—to the City of Renton (City).The critical area variance is for installation of an 8-inch water main,contained within a 16-inch steel sleeve,beneath Honey Creek,an associated riparian wetland, and buffers for the stream and the wetland. Installation of the water main is a required component of the 30-lot subdivision with associated access road and storm water facility on the Piper's Bluff site. Otak previously conducted reviews on project documents including a critical area report and supplemental stream study, a restoration plan, and a letter of justification for the water main crossing on the site. Otak prepared a Memorandum of Findings (dated April 9, 2014) for this work, and the project applicant has provided additional/revised documentation for the project. The following documents were reviewed in terms of compliance with the critical areas sections of- the City code: Piper's Bluff Wetland&Creek Restoration Plan (Sheets 1 through 5) prepared by The Watershed Company, and dated July 31,2013; Piper's Bluff/#12-135 Water Main Crossing Justification Memorandum, prepared by Sewall Wetland Consulting,Inc., dated December 4, 2013; Pipers Bluff Plat—Revis elemental Stream Study, prepared by Sewall W Entire Document 013; Available Upon Request Otak EXHIBIT 18 Brad Adkins P.O. Box 3084 Renton,WA. 98056 December 19, 2013 Rocale Timmons Senior Planner G City of Renton,WA. Department of Community&Economic Development RENTON 1055 South Grady Way. REE CEIVE® Renton,WA. 98057 . DEC• 14 2013 Bulgy® Dear Ms. Timmons: I VISION I am writing concerning the PIPER'S BLUFF/LUA13-001568, VAR application for a variance and addendum. Do not approve this application! Do not grant any variances or addendums! Do not continue to rubber stamp this project without considering the ramifications of doing so. I reside at 5210 NE 12th St. in Reriton. My property is adjacent to the Piper's Bluff project. Honey Creek flows through my property on the north/downstream side4of the Piper's Bluff site. Since construction began on this project in late spring of 2013 I have'witnessed and documented a lengthy list of mishaps,mistakes and missteps occurring on this jobsite. I made record of these events not because I'm a snoopy do-gooder with nothing better to do,but because I was and am continuously the person paying the price for their(WestPac Development LLC)ineptness.My phone line has been severed several times and is currently working only because I used copper wire to repair the latest break that occurred on Dec. 11th. The power line has been"accidently" cut multiple times, one of which caused us to be without heat,lights, and hot water overnight on Oct. 30th. The water line has been cut multiple times. The last time they repaired the water line so much dirt and sand was in the line I had to disassemble and clean all the aerators, angle stops and flush valves in the house. In July the jobsite foreman Terry Defoor was working alone on a Sunday when he ripped out and ruptured the-natural gas main running along our property. Currently, seventy-five feet from my front door,is another section of that same gas line that was heavily damaged but not compromised. It was left exposed for several weeks until recently when they covered it without repairing it. The afore mentioned incidents were all disruptions that occurred without any notice at all, let alone the required 48 hours. Poor planning and a complete lack of concern by WestPac has been the cause of considerable flooding on our property on several occasions also. The first two of these events also sent tens of thousands of gallons of silt laden runoff cascading into.Honey Creek filling the downstream portion(mine)with all the silt.The work they have done to mitigate.this problem will not stand the test of time and eventually flooding will reoccur. I am greatly concerned with all the work that has been done to the creek and the wetland . buffer at least some of which was done without a permit. I am very interested to know if EXHIBIT 19 Rocale Timmons December 19, 2013 Page 2 they were fined for that"mistake". I would also like to know what inspections have been done since their mistake was discovered. If any, I am interested in seeing those reports. I hope that since they have shown no regard to the retaining the wetland's pristine nature, theState Department of Ecology and any other appropriate environmental agencies been, become involved with this project. Based on the fact that what has been done in the buffer and the creek was done so quickly, seemingly overnight and at least a portion was done illegally and the huge impact it has had and will have not only on my property but also that of my neighbors and the wildlife that live here I am requesting in the strongest possible terms that any further work in and around the creek or wetland buffer be halted and no variance or , addendum be granted until a thorough and comprehensive study can be conducted to determine the extent of the damage that has already occurred and what possible impact continued development especially if done by WestPac Development LLC would have on our environment. I also request and expect the city of Renton to do a-much more thorough job overseeing projects such as this one now and!others in the future. Thank you for your support. Sincerely, Brad Ad •' s ps: The rain on the 20th&21S`of Dec. sent more contaminants into the buffer and then the creek. (pictures and video available upon request) cc: Michele McNeil Julia Bryan file Patrick Blodgett e( o5118NE12StO \s Renton, WA. 98059 Q\ac\W December 31, 2013 15..) SC)Rocale Timmons Senior PlannerCityofRenton, WA. Department;of Community&Economic Development 1055 South Grady Way Renton, WA. 98057 Dear Ms..Timmons: I am writing concerning the PIPER'S BLUFF/LUA13-001568,VAR application for a variance and addendum. My residence/property is located lat 5118 NE 12th St. in Renton, which on the north side of the Piper's Bluff project. Since construction began on the project in spring 2013 I have had concern with the lack of notification of changes to the project as well as excess water and mud run off from the project to my driveway. My neighbor Brad Atkins who lives east of me has also experienced on numerous occasions excess water and mudflow down into his driveway and property. My main concerns are where the water will flow after completion of the paving of the"half'road"A"on the north side of the property and an agreed paving of approximately 15 feet of my private driveway. Also on another note my gas line has been broken twice during the project excavation. Both times it was repaired by PSE and my appliances'required relighting. Another concern I have is that I was informed that contractor(I believe Collins Homes or something like that)had made a plat change request to the City to eliminate the requirements in original plat for the alley. My concern is that if that is granted it will increase the amount of traffic that will be directed to use the"half'road"A" as their main means of egress and impact my driveway and property to the north. I was supposed to be a party of record for these sorts of revision requests but did not get notification of it through mail nor email, I was informed by Peter O'Kane from PacWest. If this variance request is still being considered I would like to state that I would prefer it be denied and the original plat request be upheld to keep the alley in place as planned. Please feel free to email or call me as noted below. Thank you Patrick Blodgett Email: patcher6@comcast.net Cell Phone#: 206-999-1843 1041 5— 147th Avenue SE Renton,WA 98059 December 31, 2013 Ms. Rocale Timmons 1 4 Senior Planner City of Renton 1055 S. Grady Way Renton,WA 98057 RE: •LUA13-001568,VAR (Piper's Bluff) Dear Ms. Timmons: I would like to comment on the proposed request for buffer averaging for the wetland. How much of the wetland will be left when done? As stated in the preliminary plat report,the Muckleshoot Indian Tribe"raised concerns regarding the stormwater facility Outlet being located within the wetland as opposed to its buffer. Additionally,the Tribe requested the Applicant be required to comply with the enhanced water quality standard as opposed to tle basic water quality treatment standard in order to avoid causing impacts to salmon downstream." What will the city do—or do you Care about protecting the salmon in Honey Creek or May Creek? The City is already is requiring the developer to relocate the outfall to the wetland buffer why the change? In addition,what happened to all of the trees that were supposed to be'kept? The applicant was to keep 47 trees. Where are they?. To mitigate trees that took 50+years to get to the height they were when cut with.422 caliper trees„that's no mitigation? Like I told my kids,,Renton is allergic to keeping trees within the city. I sincerely hope that Renton changes its attitude towards trees and protecting Honey Creek with this application. Thank you.L F -,;; DEC• Sincerely, CITY yyyyP(+NAq . T YY cvvisioN Claudia Donnelly Rocale Timmons From: B Adkins <spyceetwo@yahoo.com> Sent Thursday,January 02,2014 4:22 PM To: Rocale Timmons Cc: Michele McNeill;Julia Bryan Subject:Piper's Bluff/LUA13-001568,VAR Follow Up Flag: Follow up Flag Status: Flagged i Dear Rocale, Please deny this application or at least postpone approval until samples,can be tested downstream to determine the damage that has already been done. by WestPac Developement LLC. Fish inhabit Honey Creek less than a mile downstream from where this project is occurring, other wildlife make their home along the entire creek and after watching the amount of unmitigated runoff that entered the creek on but a few of the occasions it did I am absolutely positive their environment has been adversely effected. I'd even be willing to pay for the sample testing if my assertions prove to be.incorrect. I'm pleading with you not to approve this application. Do not let WestPac Developement LLC or anyone else for that matter'run roughshod through our wetlands and protected habitats doing irreparable damage to our natural areas. Thank you, Brad Adkins 5210 NE 12th St. 98059 206-290-1001 1 RECEIVED AUG 1 9 2014 August 19,2014 CFF OF PE To whom this may Concern, PLANNING DIVISION This letter'is to express our concern regarding the Piper's Bluff Variance LUA13-001568.'We hope the city will strongly consider our opinions regarding this matter because we have been directly affected by WestPac's development.We strongly object to the City of Renton granting the variance to WestPac and ask that the wetland be returned to its natural state. As you know,WestPac encroached on the Honey Creek,destroying natural habitat, building without approval or permits. It is unbelievable that WestPac would have"accidently"done this since this is their occupation and responsibility was upon them to know that permits were required. It was their obligation to know whether all the permissions had been granted before construction had begun. There is also great concern regarding the construction done in the creek area.We are sure that you are aware of all the problems with the construction of the retention pond.Their faulty construction and lack of forethought caused thousands of gallons of rain water to run into Honey,Creek causing irrevocable damage to the portion that runs through our property,in addition to the surrounding areas.The. sediment has caused the flow of Honey Creek to•decrease greatly and in some areas stop completely. There were numerous incidents of accidental spillage into-the creek. In the end,When it was obvious' that the retention pond would not hold the water,they intentionally unplugged:the pipe and drained all of the water into Honey Creek.Their disregard for nature and the once-pristine creek is appalling. Living at the end of NE 12th and seeing WestPac's irresponsible decisions and how they have directly impacted our lives has been a great source of stress over the last year.This construction project has been plagued with lack of forethought, lack of,consideration for the citizens of Renton, disrespect for policies,and disregard for maintaining natural habitat.We expect the City of Renton to say"no more!" and not allow this to happen: i We are asking the City to stand up for us,the community they represent,and deny the variance.We are asking that the City require WestPac to follow the rules and require them to restore the wetland to its natural beauty. Big corporations should not be allowed to rewrite protocol,ask for forgiveness,and be allowed to,break the rules without any repercussions. Thank you for considering our opinions on this matter. Brad and Theresa Adkins Denis.Law Cl O Mayor Y O Community&Economic Development-Department _ , C.E."Chip"Vincent;Administrator ' August 6, 2014 Peter,O'Kane WestPac.Development, LLC. 7449 West Mercer Way: Mercer Island,WA.98040 SUBJECT:. -"Off Hold" Notice Piper's Bluff Critical Area Variance; LUA13-001568, VAR Dear Mr: O'Kane: Thank you for'submitting the additional materials requested:in the January:13,:2014,:: April 10; 2014,and`June 27,2014 letters from the City. Your project has been taken off hold and the City will continue review of-the Piper's Bluff Critical Area Variance project.'- We will be holding a second courtesy two-week public comment period for-all parties-of- record ending:on August 20, 2014. Please contact me at.(425).430,7219:if.you have any questions. Sincerely, R ale Timmons Senior Planner cc: Owner(s) Applicant . " Party(ies)of Record Renton City Hall • 1055 South Grady Way • Renton,Washington 98057 • rentonwa.gov • Claudia Donnelly N Rob Risinger PETER O'KANE 10415 147th Ave SE Conner Homes Group, LLC WESPAC DEVELOPMENT LLC Renton,WA 98059 846 108th Ave,200 7449 W MERCER Way Bellevue,WA 98004 MERCER ISLAND,WA 98040 7,,;:„- ,77-•-`7,,,;:::,.77777:1 [777477 77-z ' • „•„;;;;;!,',!--. „ „ „ Brad Adkins PATRICK BLODGETT Brad Adkins 5210 NE 12th St 5118 NE 12th St PO Box 3084 Renton,WA 98059 RENTON,IIWA 98057 Renton,WA 98056 f isM CONSULTING ENGINEERS, LLC IODIOD qiI July 30, 2014 Job No. 258-045-013 City of Renton Ms. Rocale Timmons Planning Division City of Renton Planning and Development 1005 South Grady Way JUL, 3 0 lingRenton,WA 98057 RE: Piper's Bluff Critical Area Variance,LUA13-001568,VAR InlI D1 1 iED Dear Rocale: 1l We are submitting to the City of Renton additional information for the Piper's Bluff Critical Area Varaince per your "On Hole" Notice dated January 13, 2014. In that letter you requested a response before February 7, 2014 in order to continue the review. As you know we have been working diligently with the City of Renton, Otak, and our wetland biologist to resolve the wetland issues on this project We now have all of the necessary information ready to resubmit to the City and resume the review of the variance. In your letter there were two items that you required to be submitted in order to proceed with the review and approval. I have listed the conditions below in italics, and have included our responses in bold. Independent Secondary Review of Wetland Assessment: Please provide 5 copies of an evaluation by an independent qualified professional regarding the applicant's analysis and the effectiveness of any proposed mitigating measures or programs, to include any recommendations as appropriate; This shall be paid at the applicant's expense, and the Administrator shall select the third-party review professional. An Independent Secondary Review of the Wetland Assessment was performed by Otak at the applicant's expense. This review was completed on July 22, 2014 and 5 copies of the Technical memorandum are included with this letter. In that memo, Otak confirms that Sewall Consulting has adequately addressed all comments and concerns that Otak raised while reviewing the wetland assessment With full compliance to the City's selected independent qualified professional's conditions, the Piper's Bluff Critical Area Variance should be cleared for approval. Supplemental Environmental Checklist: Please provide 5 copies of an updated Environmental Checklist describing proposed water main. extension and proposed critical area impacts and mitigation. ESM Federal Way ESM Everett 33400 8th Ave 5,Ste 205 1010 SE Everett Mall Way,Ste 210 CIv11 Engineering Land Planning Federal Way,WA 98003 Everett,WA 98208 Land Surveying Landscape Architecture 253.838.6113 tel 425.297.9900te1 3D Laser Scanning GIS 800.345.5694 toll free 800.345.5694 toll free 253.838.7104 fax 425.297.9901 fax www.esmclvll.com Ms. Rocale Timmons July 30, 2014 Page 2 A Supplemental Environmental Checklist has been prepared and provided with this letter. The analysis requested is in the form of a separate memo to be added to the original Environmental Checklist The memo provides a detailed description of the proposed water main extension and critical area impacts and mitigation. It includes the approximate areas of disturbance and proposed mitigation efforts for those disturbed areas. We feel that with this submittal the applicant has provided the additional information requested by the City of Renton. We request that upon your review of this letter and the included materials you approve the Piper's Bluff Critical Area Variance. Should you have any questions, or require additional information please contact me directly. We look forward to working with you. Sincerely, ESM CONSULTING ENGINEERS, LLC EVAN MAN Project Pla ner Enclosures cc: Rob Risinger Ilesm8lengrlesm-jobs1258104510131documentlletter-001.doc U tJ BM , CONSULTING ENG' INEE S L c. 33400 8th Avenue South,Suite 205 FederalWay,WA 98003 AL MEMORANDUM City of Renton TO: MS. ROCALE TIMMONS, CITY OF.RENTON Planning Division FROM: EVAN MANN SUBJECT: PIPER'S BLUFF.ENVIRONMENTAL CHECKLIST SUPPLEMENT JUL 2 0 1014 JOB NO:265-045-013 I DATE: J U LY 30, 2014 RECEIVED The Piper's Bluff project included a SEPA review and an Environmental Review,' Committee Meeting that was.,held on October 8, 2012. With some minor adjustments,the project Was issued a Determination of Non-Significance - Mitigated. However, from:that time to now there have been two design changes to the plat that have created additional impacts to the wetlands and stream in the northeast corner of the property. .As such, we are providing this SEPA Supplement to address the additional impacts to those critical .. areas. The plan is for mitigating temporary impacts to critical areas and associated buffers.in the northeast portion of the subject.property due to,water line construction and stormwater. damage. The project area is located in 1166 Hoquiam.Aye NE, Renton WA, King County parcel number 1023059002). Water Main Extension Impacts and'Mitigation The development area will gain :access to the municipal' water system through a connection along Hoquiam Ave NE, which will not affect Honey Creek or.its- buffer, However, Water District 90'has required the applicant to run a water line "stub" form the ' development project to the east property boundary to allow for future municipal water. access to parcels east of the project. Impacts from the water line will be temporary, but will involve clearing vegetation, excavating soil, and installing a sub-grade:8" water line and metal casing at a depth of between 3 and 5 feet through HOney Creek (a Class 4 stream), an adjacent Category 2 wetland located on either side of the stream, and, the associated standard buffer measured.50 feet from the edge of the wetland. 'No permanent above-ground'strubtures. will be placed within the critical areas or critical areas buffers. Overall the proposed temporary impacts associated with the water main are as follows:. Wetland/Stream - 969 SF Wetland A- 424 SF Honey Creek- 113 SF Total Impact Area - 1,506 SF Civil Engineering • Land Surveying • Project Management • Public Works • Land Planning • Landscape Architecture. Phone 253.838.6113 800.345-5694 Fax 253.838.7104 j . Stormwater Damage Impacts and Mitigation During construction of the storm system for the plat, in the spring of 2014, there was a large rain event During . this event there were additional impacts to the. wetland/stream/buffer corridor in; the northeast corner of the site. The impacts were reviewed, and the City/City's Consultant recommended that the project improve the entire wetland/stream/buffer corridor on the site. These improvements include additional plantings that will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. This will also include removal, of invasive'vegetative species from the stream, wetland, and associated buffers. The revised plan includes . restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path: The areas that will'be improved' and restored per the City recommendations are as. . _ follows: Wetland/Stream Buffer- 2,290 SF Wetland - 869 SF Total Improved Area - 3,159 SF Combined, the Water Main Extension and Stormwater Damage Restoration Areas equal an area of 4,665 SF. The existing monitoring plan outlined in the Wetland &. Creek Restoration Plan for the original impacts associated with the Water Main Extension will also be applied to.the Stormwater Damage Mitigation areas. This will ensure that the entire restoration/mitigation area is,monitored twice a year for 5 years. For additional detail of the impacts and proposed mitigation associated with this project please refer to th'e "Plat of Pipers Bluff- Supplemental Critical Areas Restoration.Plan" dated 5/19/14 by Sewall Wetland Consulting,Inc. 11esm81engrlesm-jobs1258104510131docu ment\memo-008.doc I I"Og hIIIIINIII pI Inilma,,, 1'Sewall Wetland Consulting, Inc. rm. PO Phone: -25385'9-0515iil0°fIJNr-oGTL Fall City,WA 98024 City of Rort.f51 Planning Division June 4, 2014 JUL 3 0 lg14 Rob Risinger Conner Homes IEUMED 846 108th Ave NE Bellevue, WA 98004 Re: Piper's Bluff—Technical Memorandum Response SWC Job#12-135 City of Renton File LUA13 1001568 Dear Rob, This letter is in response to the April, 9, 2014 Technical memorandum by OTAK regarding the Pipers Bluff Project. . The following recommendations were identified by OTAK; Comment 1 No wetland flags were present on the date of our site visit, and wetland delineation confirmation was not possible given construction activities and site dirturbane that had already occurred. However, using the plan setfrom the IVetland and Stream Restoration Plan, along with field observations, we do not believe inaccuracy of the wetland delineation to be of concern. We also agree that the wetland meets the criteriafor a Catego y 2 wetland under RMC 4-3-050(M), and the stream appears to be a Class 4 (non-salmonid bearing, intermittent lydrologic regime)system per RMC 4-3-050(L). Recommendation:None No response was necessary to this comment Comment Sometime between Otak's initial and second site visits, the vault facility failed, subsequently releasing substantial amounts offne'sediment from the stormwater vault into the wetland and stream system and their buffers, along with scour and downcutting at the vault discharge point(see Photos 1 and 2). Following the vault facility failure,fine sediment was noted in the. stream and surrounding:riparian habitat(Photo 3), and substantial infilling of a downstream pond by fine sediment was reported by a nearby landowner(Nonis, Jim) during the March.30 . site visit(Photo 4). Such adverse impacts to the wetland, stream, and buffer warrant compensatory mitigation. . Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page2of7 Recommendation: We recommend that the applicant provide a compensatory mitigation plan for the above impacts associated with the vault failure. The compensatory mitigation plan should be designed to improve the entire wetland/stream/buffer corridor on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan used for construction impacts to critical areas as well as stream impacts resulting from the water line installation. All of the requested elements have been incorporated in the attached "Plat of Pipers Bluff Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Specifically; The compensatory mitigation plan should be designed to.improve the entire wetland/stream/buffer corridor on the'ite. Response: The "Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland, streams and buffers as well as plantings throughout the impacted areas as well as tree underplanting within the undisturbed buffer areas. These mitigation measures should not only enhance,but improve the function of the buffer on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred to and near the wetland and stream. Response: The proposed plantings as shown on the "Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting are beyond the previously identified planting colder and will provide the features and functions identified above. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers Response: The"Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland,streams and buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan used for construction impacts to critical areas as well as stream impacts resulting from the water line installation. Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 3 of 7 Response: The Sewall Wetland Consulting Plan matches the goals and objectives of the elements of The Watershed Plan, however it is supplemental to The Watershed Plan and should be implemented in conjunction with that plan as they both cover different parts of the site schematically. Comment The area impacted by vegetation removal in the wetland,stream, and associated beer is larger than depicted on the Wetland&Creek Restoration Plan:Site visits confirmed that the areaf om which vegetation has been removed is larger than the 15 foot-wide replanting corridor depicted in the Restoration Plan. Jj Recommendation: The restoration planting plan should be revised to present a larger footprint for restoration. The revised plan should include restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. Due to the proximity of the stormwater vault outfall and the risk lof stormwater scouring out or otherwise imposing disturbances to the proposed restoration plantings as well as the nearby vegetation, we recommend that the existing monitoring plan outlined in.the Wetland& Creek Restoration; . Plan would also be applied to;this area . Response: These elements have been incorporated,in the attached"Plat of Pipers Bluff- • - Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Plantings in the general area of disturbance,have been added, as well as plantings to stabilize the flowpath from the stormwater. outflow. The existing monitoring plan has been added to match that outlined in the previous mitigation plan. • . .• COmment4 According to the Water Main Crossing Justification Memo, the restored wetland, stream, and buffer will be monitored four times in Year 1, and once ayel rforfiveyears as required by Code. However, the Wetland e'. Creek Restoration.Plan states monitoring,should take place twice annually foriveyears. Recommendation:It is our recommendation that the latter monitoring schedule(monitoring twice per year for five years)'be followed.due to the'possible impact from the proposed . outfall and the existing impact from the facility failure. Per the Wetland&Creek Restoration Plan, monitoring should occur once in the spring and late summer/fall. Additional monitoring data should be identified and collected as components of a revised monitoring plan, to include assessment of erosion, scour,'and/or deposition offines in the wetland; stream, and buffer areas particularly those areas.associated with the stormwater facility ou fall.Due to the.recommended.increase in the-restoration and mitigation planting area, the . monitoring plan.should be revised to include 'additional monitoring,transects. _ I The Water Main Crossing Justification Memo should be revised for consistency with the ' ' • recommended monitoring schedule, and Wetland&Creek Restoration Plan should be revised to'include additional transects and-collection of erosion and sediment deposition data. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 4 of 7 Response: As shown below and on the plan, these elements have been incorporated in the attached"Plat of Pipers Bluff—Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc'. TABLE:3-1:GOALS,OBJECTIVES,-MONITORING.;SCHEOULE;.&.PERFORMANCE STANDARDS GOAL . ' : OBJECTIVE;• SCHEDULE-. : (;PERFORMANCE=STANDARDS 1OSOCCtSsFUU.Y13TA61KtIA. TOINSTAEL km. SIkCESigUU.Y - gUAltintYbUNWG • ":0330; ,7cVWVAMAYWSTAIIrbNA,TSToc3IW[RT11EFlf,ST FR DalSC NATIVE•POAV*COMV1JNt1Y E3TASMI312NATNEPIANTINGS- WAWE GROWITiG5FASONIYEAA:),TNISSTANDARDCANDEMT WAN AESTDRED CRflCALAFTA 'WITHIN 3:157V 01.RtSTOAED.- THf<OV M IWO ESTAIMSMIEN f OA AtPLAi41 MG,AS AND CRITICA:AAEAtUriEAS. VA:11M'DASUWlttANTUSIItEAM APRILORMAYAND NKESSUTY,10ACNICYEtfiE.AEOUINCOPLANTPOA1DERS. RUFFEN, • -M06U0T.011 • '45l6SUAVivAtEKINSTAE1FDKAMSTOOCATTER THE Dan., LPEEMUEAOF.WARS GROWMG SEASON,MAR 3),' T.,{SS' • AVERAGE covtP.AGrerr400.T1EFSAN4Sliwn AFTER THE THIRD GRDW?G STA90N cam 3),.. ADSi AVERAGE COVERAGE Vi NAM.TREES AND SHRUGS.' AFTERTHE MTH GROW.NG SFADDAI(YEAR W. UP to N1f;OF TNT W+Trvt WDDDY P1AN15rlat.Witke GC 1 • MAY DE COMPASSED OF DEMME MPT7 E COSDNIT451G SPECIES, SPECIISTAYERSfY;ESTAStAltiAENTOI LNATAJEIEEE . • - S wEVAtiOAMI? auM0rAS iwiSucaSAFTiftTiiE HRH GROYYWG;StAEO41 STEM5) TO OAT NOXIOUS WEED snow . TDKIGVIDCI1.titlimAL OUAATFRLYDURING • ILLS MAN'IO%COVIINGC.it'Alt CLASS'A','U',AND'C.. WIININWOIIIN ATSTDRYO CRffICAL ,CONTRDG Cti MOWS WEED YtAA T. • NOXIOUS WEEDS hNCtUNVG 110NAEGUtATT0'a'AJR.0,%!' ARIA AND SPCC+LS'ANOHItNTOMITEIN•rtL NOiIIOtiSY/EE06)IDENTLr1EtfONTHEEATESTYfVGCiTIH1Y THEG'f IEMEPa13ENCEOf APKokmAYANb NOXIOUS WEED SPECUS. i AUGUST-OE .NOXIDNSWEf.OtKTt i SEPTDVDEROFYEA$ 7.a,4,&37,l,A,ElS, The additional planting areas shown•on the Supplemental plan will be monitored for ' .. coverage using the line-intercept'technique as was used on The Watershed Plan. These t• ransects will be field located during the first monitoring. . - The elements of the Water Main CrossingJustification.Memo have been incorporated into _ the revised Critical Areas Report and Supplemental Stream Study and have been revised to include the recommended monitoring schedule, line intercept transects and collection of- erosion and sediment deposition data; Comment5 . The stormivaterfacility outfall is located within the stream and wetland buffer habitat, and stormwater form the outfall will discharge into the stream and its associated wetland. This has relevance to the proposed variance for'the Water line,,because the discharge point is withi i,the brierfor.the streamside wetland as well as the be-et-for the stream. Higher discharge flows for longer durations than'currently exist for this location have the potential to.cause • erosion,•deliver sediment into the.stream, incease flow within the stream.system, and affect the proposed restoration plantings associated with the water line crossing None of these potential impacts were evaluated in any of the Sewall documents. Recommendation:Based on a conversation with City engineering staff(Lee,.Steve)during March 2014,:it is'our . • understanding that:the applicant and'the City are'negotiating'a stormwater facility retrofit design to.address•the facilityfailure.Although the applicant conducted analysis of the original stormwater vault using theKing County • Runoff Time Series Model per City of Renton Code,we recommend re-analysis of the proposed stormwater vault ,- • • •. retrofit capacity and associated metrics(discharge duration and peakflow discharges)using an additional model . such'as MGS Flood or An Qtak engineer conducted an analysis of the original stormwater vault . facility using MGS Flood, and noted that this model indicated that the flow,duration performance criteria,per . Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 5 of 7 Washington Department ofEcology, were not metfor the facili0(see attached). Operation ofthe proposed retrofit stormwaterfacility and discharge quantities—particularly peak flow discharges and flowfrequencies—may potentially affect the plantings within the irestoration and mitigation areas. In addition, we recommend reevaluation ofthe potential changes in functional value of the wetland and stream due to the outfall and detention of the retrofit design for the stormwater facility. Results should be included in the CAR and SSS as well as be considered in mitigation design. Response: It is our understanding from the project.engineer that there are no changes to the flow rates or durations from those previously reported. As detailed in the CAR,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream. Wetland A isla narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of the numerous stormwater facilities located south of the site. The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surfrcial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal, with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation. The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. In addition a dense planting of willows downslope will further disperse flows through this area. This should insure water that currently makes it way from the site to the wetland and creek continues to do so. Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff(dated. January 31, 2013-see table below),there is a minor increase in the flow;rates off the site from pre-developed.rates. This should insure the project will not dry out the wetland, and that adequate hydrology enters the wetland to maintain its viability. DESIGN INFORMATION INDIVIDUAL BASIN Water Quality design flow Water Quality treated volume Drainage basin(s) Onsite area(infcudes frontage) 4.98 Offsite area 0 Type of Storage Facility Pond Live Storage Volumo(recuired) 69,132 Predev Runoff Rate 2-year 0.139. 10-year 0.241 100-year 0.402 ' Developed Runoff Rate year - 0.928 10-year 1.12 100-year 1.88 Type of Restrictor . Frop-Tee Size of orifice/restriction No.1 . 0.88 No.2 1.50 No.3 1.40 Above:Table from DR Strong Drainage Report Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 6 of 7 The proposed plantings in the area that are downslope of the outfall have been selected for their ability to withstand some surface flows as well as periodic inundation. No impacts to these plantings should occur from the functioning outflow. Comment 6 RMC 4-3-050.L.3.b requires the applicant to conduct a supplemental stream study (SSS) if alterations to a water body and its associated buffer are proposed:Per RMC 4-8-20 the SSS must include a stream assessment) analysis of alternatives, impact evaluation, and mitigation proposal. The current SSS provides limited functional analysis of the strewn, and provides no information on alternatives or mitigation. Recommendation:.The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-20 requirements, and take into consideration the stormwater facility retrofit design, outfall/discharge structure,proposed energy dissipation, and other relevant detail. Response: A more detailed analysis of functions and alternatives and mitigation has been included in the revised CAR/SSS. Recommendation: The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-20 requirements, and take into consideration the stormwater facility retrofit design, outfall/discharge structure,proposed energy dissipation, and other relevant detail. . Response: The criteria in RMC 4-8-120 have been addressed in the revised CAR/SSS (see page 13). As far as the retrofit of the storm facility, the only change to the storm facility was the fact the pond is now lined to prevent water from seeping through the soil around and below the pond,which caused the failure. According to the engineer, the outfall, energy dissipation, and structure have not changed from'the original approved design. Comment 7 The Water Main Justification Memo,page 4,partf, explains that the Wetland&Creek Restoration Plan meets the mitigation criteria of subsection L3c(ii). However, it does not the requirement per&YIC 4-3-050- L3c, which states that the stream mitigation plan per RMC 4-8-120 requires a mitigation narrative including specifc requirements.No mitigation narrative was submitted with the Wetland&Creek Restoration Plan and therefore the water main is notfullyjustified. Recommendation:A mitigation narrative per the requirements in RMC-4-8-120 should be submitted with the revised mitigation plan noted in Comment 2. Response: The criteria in RMC 4-8-120 have been addressed in the attached Mitigation Narrative Document dated June 4, 2014. 1 I Piper's B1ufJ7#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 7 of 7 Comment 8 Based onfield observations after the vaultfailure, wetland and stream protection was limited to minimal silt fencing at the outlet to the failed vault(Photo 5). Recommendation:Additional silt fencing and/or other temporary sediment and erosion control BMPs should be installed to protect the wetland and stream from further impacts from the large amount of sediment released during the vault failure; and to prevent further impacts, should failure occur again. Response: These silt fences/bmps have been installed. If you have any questions or need any additional information please contact me at (253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetland Ecologist PWS #212 Attached: •Revised Critical Areas/Supplemental Stream Study 6-4-14, Sewall Wetland Consulting,',Inc. Supplemental Restoration Plan—Sewall Wetland Consulting, Inc. Mitigation Narrative 6-4-14, Sewall Wetland Consulting, Inc. Pipers Bluff Mitigation Plan, The Watershed Company t I Jiuu.111gg1 pia i l f- Sewall Wetland Consulting, Inc. PO Box 880 Phones 253-859-0515 FallCity,WA 98024 City of Renton inning Division June'4, 2014 JUL z 1114 ROb Risinger . Conner Homes 1 Er•L'EI VE D 846 108th Ave Ne, Bellevue, WA 98004 Re:. Piper's Bluff—Mitigation, Monitoring and Maintenance Narrative SWC Job#12-135 City of Renton File LUA1.3-001568 Mitigation Narrative The proposed mitigation consists of two mitigation plans, one for the existing water line crossing(Pipers Bluff-:Wetland& Creek Restoration Plan"by The Watershed Company; and one for the disturbed areas of the wetland, stream arid buffer:from the storm pond failure (see Sewall Wetland Consulting Pipers;Bluff Supplemental Critical Areas Restoration Plan). The.Watershed Mitigation plan covers 1,506sf of buffer,wetland and stream restoration, and the Sewall Wetland Consulting Plan covers 3,159sf of wetland,stream and buffer mitigation as well as supplemental tree under planting in the remaining buffer area. The purpose of these two plants is to restore the areas that have been disturbed by the installation of the wetland line, as well as the area of disturbance from the vault failure. Performance Standards All of the proposed mitigation will be inspected 4 times in Year 1 and twice.a Year in Years 2-5. As depicted on the Pipers Bluff-Wetland& Creek Restoration Plan, the following . Performance Standards will be used; . . 1 Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 2 of 6 Perforniance-Standards The standards listed below shall be used.to Judge the success of the plan,over time. 1. Plant Survival and Cover, a.Achieve 100%survival of installed vegetation.by the;end of Year'I. This standard'can be met through plant establishment or threugh'replanting as necessary to achieve the required numbers. b• Achieve at least 60%cover oinative trees'and shrubs by the end of Year 3. c.Achieve at Ieast80%•cover oinath+e trees and shrubs by the end,of Year.S. 2 Species diversity: Establish at least I nativeviee species;and 5 native shrub species,.and.one native" low.cover species by,Year S. Volunteer.species.may count towards this standard. 3.Invasiv'e.cover: No more-than 10%cover by invasive weed species in the mitigation enhancement areas In any monkoririgyear. I. General summary of the spring visit. 2.Counts of live and dead trees and shrubs by species in the planted areas in Year,I:Significant'die-off should be reported by species and quantity to any•monitoring year. . 3:Estimate of native sapling tree and•shrub cover using the line-intercept method along:established.traniects in the;planted area. 4.Estimate of invasive cover using the line-intercept method along established ttansects In the planted.area 5:Photographic documentation from fixed reference:points:In each planting area. •• ., • 6:Intrusions into the planting areas;vandalism or other actions that Impair the• Intended functions:of the planited areas. 7,Recommendations.for maintenance or repair of any portion of the'mitlgation area As depicted on the Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas. Restoration Plan the following Performance Standards will be used; . - • TABLE 34:GOALS;OBJECTIVES,'MONITORING sCHEDULE,&.PERFORMANCESTANDARDS GOAD._ OBJECTIVE;,' , SCHEDULE ; It PERFORMANCE;STANDARD , TOSitCttISNILYISTARIISHA. :TOL45TALLJWO5000MIUIUY.. QWATB DIdFaY %G" • 106%SUfYWAt.rt44.AUEOfSMITt1*4'0DT.CFt0 - D11{IT.NATIVE PIANTcO1MINIIY• ESTABUS9327.W+TIYETIA4,T1t : . '!EARL- • • ; cew1NasIASON.ITIM.I)'TNIS,STA4e&&DCANNE ..T - WITHIN Ars1O'ATD CRNION.M;TA WITHIN 3.15D SFOF,RE.STORED•• TIUIOUGH PLANT ESTADUaIPON REMITTING,NT REMITTING,AS AND CDITKALANEA DUtrH5, .WETLAND AND WEUAND/51RFA4t AWN ORMAYAND ' NECESSADY,TO ADRIA THE REQUIRED EANT NUM MI BU Fit, ADOUITOA . .1a%SU MIAOWWNASBYMIAOPIANTSTOCKArTFA THETHIRO RTET51AOT:TWO O10WINGSEASON.1Y1AIIV,. - 1.AA 4.' • •. 11.015'AV1MGSCOVRNAGE'DE NATIVE TTUS AND SHNUM AFTEUHE THIRD GNDWE/G SEASON IYFAR 31•• aDliIVvomr commaT STPATJVL rims AND DI:R1NU . - , ' AFttt.tiltslRNGIIOW$GStASONhlAN51•. LIP TO ION OF THE.NATIVE WDODYPUNTSPtorwvf,Aet MAPEECOMPRISTDOTOtSIABU:NATIVE ODLONLNG ' ' uEa=s. SPEOESOIVERSitw ESTAB1issmiwr OF.a NAnut THEE. SPEOIS AND AMtMIAI on PAIS SHOES ATTSYN5. WIN DAOVONGSEA3DNhTAAS1' TOUMTTNOAOUSWtLD5PLOCS TOPELVIDETUECWTfl L•CUA T[SYOL/C G• • ItSS`rNJ1430%COV[YU441/WiEUASS.•A",•D';AND'V WITHIN WITHIN MONIED CRITICAL :COMA OTMOODS WOW. • 'YEAS II NONDUIWDiDS IINCWMNG N[UoSGulAita'r AND'C• AatAANCCAsnrAL KtAs fff/5.. ;.S9EOLSNIDTNEN IQMNINNIE No7DWIw1IDs)IDl41l fWDON THL LATEST at$C"COUr(IY INTHEG DA%WIERNCE;OF PIK OR MAY AND,' . NpNOUIW[IDUST. saro'JS WEED SPECIES.• A TGUSTOD• SEPtdl.BEA OF9tA5S I:S,C.i5T. .A:R$ Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 3 of 6 ANNUAL COMPLIANCE MONITORING FOLLOWING ACCEPTANCE OF THE AS=BUIL-T BY THE CITY OFRENTON,ANNUAL COMPLIANCE MONITORING SHALL`BE,COMPLETED FORA PERIOD:OF FIVE YEARS ANNUAL COMPLIANCE MONITORiNG SHALL BE COMPLETED_BY A.' QUALIFIED'PROFESSIONAL AND-SHALL COMPRISE ASITE INVESTIGATION AND. REPORTING PERTHE'FOLLOWINGINTERVAL: QUARTERLY DURING THE FIRST YEAR-'(YEAR I1.FOLLOWING PLANT ' INSTALLATION;AND IN APRIL•OR MAY AND-AUGUST OR SEPTEMBER OF THE-SECOND- THROUGH FIFTH YEARS(YEAR2.THROUGH YEAR 5):FOLLOWING.INITIAL• PLANT INSTALLATION. I COMPLIANCE MONITORING SHALL•COMPRISE•A QUANTITATIVE ASSESSMENT OF- CONDITIONS'WITHIN EACH PLANTING AREA FOR PURPOSES OF EVALUATING THE CURRENT YEAR'S PERFORMANCE*STANDARDS:.AT THE TIME OF EACH.' MONITORING ASSESSMENT,THE FOLLOWING INFORMATION-SHALLBE COLLECTEDAND ASSESSED RELATIVE TO THE•PERFORMANCE STANDARDS ESTABLISHED FOR THE PROJECT:: THE:CONDITION OF INSTALLED`PLANTSTOCKINcLUDING SURVIVORSHIP,HEALTH,'AND VIGOR: THE RATIONALE FOR POOR CONDITIONS,IF PRESENTMILL BE DETERMINED:. THE SPECIES COMPOSITION OF AND ARCAL COVERAGE PROVIDED BY NATIVE WODDY.PLANT SPECIES{TREES AND SHRUBS)AND NATIVE • • .. EMERGE NTT:PLANT.SPECIES:(WHERE'PLANTED). THE SPECIES.COMPOSITION OFOF AND AREAL COVERAGE PROVIDED:BY NOXIOUS WEED SPECIES. COMPLIANCE MONITORING'METHODOLOGY. A DIRECT COUNT INVENTORY AND ASSESSMENT OF ALL INSTALLED ' PLANT STOCK SHALL •USED`TO EVALUATE-PLANT CONDITIONS., ' . , SPECIES°COMPOSITI.ON AND AREALCOVERAGE SHALL BE ASSESSED: . a/SINGTHECOMPLIANCEMONITORING PLOTS"ORTRANSECTS.: ESTABLISHED DURINGTI EAS;=BUILT: PHOTOGRAPHS:OFEACHIPLANTING'AREASHALL BETAKEN FROM1HE PERMANENT PHOTO POINTS ESTABLISHED:DURING.THEAS4BUILT: DURING I<ACH COMPLIANCE MONITORING!ASSESSM NT,.EACHPLANTING AREA . WILL BEASSESSED FOR`,EVIDENCE OF,EROSION,SCOUR,AND/OR DEPOSITION:OF . FINES•-PAR'TiCULARLY IN THOSEAREAS'DOWNSLOPE1DOWNSTREAM!OFTHE STORMWATER OUTFALL. WHERE NECESSARY;RECOMMENDATIONS FOR'• Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 4 of 6 CORRECTIVE ACTIONS TO STABILIZE SOILS/SLOPES WILL BE PROVIDED IN THE RELATED MONITORING REPORT. j THE RESULTS OF EACH COMPLIANCE MONITORING ASSESSMENT SHALL BE SUMMARIZED IN A WRITTEN REPORT AND SUBMITTED TO THE CITY OF RENTON NO LATER THAN NOVEMBER 30 OF THE RESPECTIVE MONITORING YEAR. CONTINGENCY PLAN SHOULD ANY COMPLIANCE MONITORING ASSESSMENT REVEAL THAT THE PERFORMANCE STANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED,THE PERMITTEE SHALL WORK WITH THE CITY OF RENTON TO DEVELOP A CONTINGENCY PLAN TO ADDRESS THE DEFICIENCY(IES). CONTINGENCY PLANS CAN INCLUDE,BUT ARE NOT LIMITED TOO NE FOLLOWING ACTIONS: 1. ADDITIONAL PLANT INSTALLATION; 2. EROSION CONTROL; 3. HERBIVORY PROTECTION; 4. MODIFICATION TO THE IRRIGATION REGIME;AND/OR 5. PLANT SUBSTITUTIONS OF TYPE,SIZE,QUANTITY,AND LOCATION. SUCH CONTINGENCY PLAN SHALL BE:SUBMITTED TO THE CITY OF RENTON BY JANUARY 31 OF ANY YEAR WHEN DEFICIENCIES ARE DISCOVERED. UNLESS OTHERWISE APPROVED BYTHE CITY OF RENTON,ACTIONS SPECIFIED ON AN APPROVED CONTINGENCY PLAN MUST BE COMPLETED WITHIN 60 DAYS. IF THE FAILURE IS SUBSTANTIAL,THE CITY OF RENTON MAY EXTEND THE COMPLIANCE MONITORING PERIOD FOR THE RESTORATION WORK. Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 5 of 6 MAINTENANCE PLAN THIS SECTION PROVIDES A GENERALJOVERVIEW OF THE MAINTENANCE PROGRAM NECESSARY TO ENSURE THE SUCCESS STANDARDS ESTABLISHED FOR THIS PLAN ARE ACHIEVED, NOXIOUS WEED CONTROL FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD,NOXIOUS WEED CONTROL SHALL OCCUR ON A SPOT TREATMENT BASIS WITHIN EACH PLANTING AREA. TARGET NOXIOUS WEED SPECIES SHALL INCLUDE THE FOLLOWING: ALL CLASS"A", AND"C"NOXIOUS WEEDS(INCLUDING NON-REGULATED'Er AND"C"NOXIOUS WEEDS)IDENTIFIED ON THE LATEST KING COUNTY NOXIOUS WEED UST. NOXIOUS WEED CONTROL WORK SHALL CONSIST OF THE CUTTING AND REMOVAL FROM THE SITE OF ALL NOXIOUS WEED SPECIES STEMS,CANES,RUNNERS,SHOOTS, SEED PODS,FRUITING BODIES,AND LEAVES PER THE FOLLOWING METHODS: 1. HAND PULLING, 2. MANUALLY CUTTING USING MACHETES,LOP PERS,AND/OR CLIPPERS. SPOT TREATMENT SHALL OCCUR MONTHLY AND/OR AT A GREATER FREQUENCY,IF NECESSARY,TO CONTROL NOXIOUS WEED SPECIES TO A MAXIMUM OF TEN(10) PERCENT OR LESS COVERAGE WITHIN EACH PLANTING AREA. DURING ALL NOXIOUS WEED CONTROL WORK,EXISTING OR PLANTING NATIVE VEGETATION SHALL BE PROTECTED FROM DAMAGE. GENERAL MAINTENANCE EACH PLANTING AREA SHALL BE MAINTAINED AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD TO PROMOTE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OFTHE INSTALLED PLANT STOCK. GENERAL MAINTENANCE SHALL INCLUDE: 1. WEEDING OF EACH PLANTING AREA. 2. RE-APPLYING BARK MULCH TO MAINTAIN A 6"MINIMUM APPLIED THICKNESS-YEAR 1 ONLY. 3. THE PRUNING OF INSTALLED PLANTS TO REMOVE DEAD WOOD AND PROMOTE VIGOROUS PLANT GROWTH AND PROPER FORM. 4. THE REPLACEMENT OF PLANTS THAT APPEAR TO.BE IN DISTRESS AND/OR DISEASED. 5. THE.REMOVAL OF TRASH,LITTER,AND/OR OTHER NON-DECOMPOSING DEBRIS. GENERAL MAINTENANCE WORK SHALL OCCUR MONTHLY DURING THE GROWING SEASON AND/OR AT A FREQUENCY OTHERWISE NECESSARY TO ENSURE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANTS AND/OR THE CONTROL OF NOXIOUS WEEDS. . Piper's Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 6 of 6 If you have any questions or need any additional information please contact me at(253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall Wetland Consulting, Inc. , Ed Sewall • J Senior Wetland Ecologist PWS#212 J Sewall Wetland Consulting, Inc.uu, 27641 Covington Way SE#2 Phone 253-859-0515 Covington WA 98042 Fax.253-852-4732 City of Fenton Planning Division June.4,201.4 I JUL' 0D94_. Rob Risinger 0 Conner Homes E C EV Vnp E D 846 108th Ave NE Bellevue;WA 98004 RE: Pipers Bluff Plat—Revised City of Renton Critical Areas Report Supplemental Stream Study SWC Job#12-135 l 1.0 INTRODUCTION This report describes jurisdictional wetlands and streams on the 5 acre proposed Pipers Bluff Plat, located on the east side of Hoquiam Avenue NE in the City of Renton; Washington(the "site"). Specifically,the site consists of a rectangular shaped group of four(4) abutting parcels in a portion of the NE 1/ of Section.10,Township:23 North, Range 5.East Of the Willamette 1VTeridian in King County,Washington. 51 1 j:' - .isN,:zed si:."t - -: avE 23ra se;;- r __' :j.r t ',r ,.. t f1_,NE 20N St iPt !'`. z tj - )`,' i; r. M 16tt,SI „Q, 't, _:._..S- j i 4,-, "> tj' t tl yvbifmso, Y '- ^SE.107 tif':: Q' .^kEt .m/ z3,t ont . @Ei17th 5l t .. ' iu; m ;' - J`. +`i zu to NE,17lhSl P `4 L{ 4>1M!' }°; Nt t6lfi51'` 1 y i _j i :i: ty,SE?2: D+iRdMaj;!s rJEf i. t'" 1' IS7iali i_ ote f i lt tit:t7th St fI 4NE 12th St __l.._ ldrtll t.-:.1 I' NE tYSy,SE.11hHS1."f . SIIE, SE tuing .`t I C__ i . l=', :NEtithSt`." i 11th'z !a OLiVER;M111; NE. .Si;,,' 7 q } HA2EN'HIGH I rsc'ioui'piy' 1 NE'pip a, '., ; , . _ . Vicinity Map Pipers Bluff/#12-135 Sewall.Wetland Consulting,Inc. June 4,2014 Page 2 The site consists of four Parcels including#1023059002,.#9367,#9312 &#9144. Single family homes are present on two of the parcels along Hoquiam Avenue, and the remaining property besides the associated lawns and landscaping is undeveloped forested area. The site is proposed to be subdivided into 28 single-family residential Lots with associated roads, and infrastructure. 2.0 METHODOLOGY Ed Sewall of Sewall Wetland Consulting, Inc. inspected the site on June 6;2012, as well as on April 28, and May 9, 2014. The site was reviewed using methodology described in the Washington State Wetlands Identification Manual(WADOE, March:1997). This is the methodology currently recognized by the City of Renton and the State Of Washington for wetland determinations and delineations. The site was alsoinspected using the methodology described iri the Corps of Engineers Wetlands-Delineation Manual Environmental Laboratory, 1987), and the Western Mountains,Valleys and Coast region Supplement(Version 2.0) dated June 24, 2010, as required by the US Army Corps of Engineers. . Soil colors were identified using the 1990 Edited and Revised Edition of the Munsell Soil Color Charts(Kollmorgen Instruments Corp: 1990). The Washington State Wetlands Identification:and Delineation Manual and the Corps of Engineers Wetlands Delineation Manual/Regional Supplement all require the use of the three-parameter approach in identifying and delineating wetlands. A wetland should support a predominance of hydrophytic vegetation,have hydric soils and display wetland hydrology. To be considered hydrophytic vegetation, over 50% of the dominant species in an area must have an indicator:status of facultative(FAC), facultative wetland FACW), or obligate wetland'(OBL), according to the National List of Plant.Species That Occur in Wetlands:Northwest(Region 9) (Reed, 1988). A hydric soil is "a soil-that is saturated;flooded, or ponded long enough during the growing season'to develop anaerobic conditions in the upper part". Anaerobic conditions are indicated iri the field by soils with low.chromas(2 or less), as determined,by using the Munsell Soil'Color Charts; iron oxide mottles; hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5%%or greater of the growing season; Areas that contain indicators of wetland hydrology between 5%-12.5% of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of soil inundation, saturation, oxidized rhizospheres,water marks on trees or other fixed objects, drift lines, etc. Under normal circumstances, indicators of all three parameters will be present in wetland.areas. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 3 Following delineation of the wetland and stream on the site,the flags were surveyed by D.R. Strong Consulting Engineers(see attached survey). The April 28, and May 9, 2014, site visits were conducted to confirm the location of impacted wetland, stream and buffer areas as well as determine what and where compensatory mitigation measures should occur from this impact. 3.0 OBSERVATIONS 3.1 Existing Site Documentation Prior to visiting the site a review of several natural resource inventory maps was conducted. Resources reviewed included the NRCS Soil Survey,National Wetlands Inventory, and the City of Renton's Water Class map. 3.1.1 Soil Survey According to the Soil Survey, King County Area,Washington(Snyder et al 1973),the entire site is mapped as containing Alderwood gravelly loam soils(Map Units AgC & AgD). Alderwood soils are moderately-well drained soils formed in glacial till under conifers. Alderwood soils are not listed as a "hydric" soil according to the publication Hydric Soils of the United States(USDA NTCHS Pub No.1491, 1991). However, Alderwood soils can contain small inclusions of poorly drained hyric soils such Norma, Bellingham, Seattle,Tukwila and Shalcar soil series. Pipers Bluf/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 4 AP t7 rw., 1 it ill" °1, 1 ' OS i Orillat dradrn fr itir 40„,„„ i: leiii le* ' 4, , 10111116 4- i I tri,JP 11411,!.110tail* fir..4 Soil Map of the site 3.1.2 National Wetlands Inventory According to the National Wetlands Inventory there are no wetlands or streams located on or near the site. 1A. f-_ I I k J._ ii 1. _ \. AP &air 4.' .'" ‘:, ' 24! . ....:.',..: 7-•''' t't.. a i-1 National Wetlands Inventory map Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 5 3.1.4 City of Renton Water Class Map According to the City of Renton Draft Water Class Map,the upper reach of Honey Creek is located on the northeast corner of the site. This stream is mapped as a Class 4 stream by the City(brown stream shading). ern i" oar': era r WA. 41 4/1 Wit y 'I ic 916 10 45f P NMI w WIMPcry M" #t R. 1 s+ MC rviiki 041 b,CO 1/ 1 114%. '11 W xn xtfr Above: City of Renton's Water Type Map 3.2 Field Observations 3.2.1 Uplands The site is located near the crest of a hill with the property sloping down to the east towards Honey Creek. As previously mentioned, several structures as well as associated lawn, driveway and landscaped area is located along the west side of the site. The area along the west side of the site includes immature red alder,big-leaf maple, old apple trees, cottonwood, dense thickets of blackberry,hazelnut, salmonberry and sword fern. The western end of the site appears to have been cleared at one time but has been re-vegetated within the last 20+years. The majority of the site is covered with a mixed forest with conifers as the main component in the overstory. Douglas fir with several 4'- 5' dbh specimens are the dominant species in the overstory with scattered big leaf maple and red alder. Understory species include hazelnut, indian plum,elderberry, sword fern, salmonberry, and stinging nettle. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 6 Soil pits excavated within the upland area of the site revealed soils with profiles similar to the mapped Alderwood series. 3.2.2 Wetlands A single scrub-shrub,riparian wetland was identified and delineated along the northeast corner of the site. The western edge of the wetland was flagged with orange/black flagging labeled AA1-AA2-Al-A7, and the east side with B1-B4. This narrow band of wetland borders Honey Creek which passes through its center flowing in a northerly direction. Vegetation in this wetland consists of small pacific willow, salmonberry, lady fern, skunk cabbage and manna grass. Soil pits excavated within the wetland revealed a sapric muck soil with a color of 10YR 2/1 which was saturated within 12" of the surface. Wetland A would be classified as PSS1C (palustrine, scrub-shrub,broad leaved deciduous, seasonally flooded) according to the US Fish and Wildlife Wetland Classification methodology(Cowardin et al. 1979). According to the criteria in City of Renton Municipal Code(RMC)Chapter 4-3-050.M.1, Wetland A would be classified as Category 2 wetland. Category 2 wetlands are defined in the Code as follows; ii. Category 2: Category 2 wetlands are wetlands which meet one or more of the following criteria: a) Wetlands that are not Category 1 or 3 wetlands; and/or b) Wetlands that have heron rookeries or osprey nests, but are not Category 1 wetlands; and/or c) Wetlands of any size located at the headwaters of a watercourse, i.e., a wetland with a perennial or seasonal outflow channel, but with no defined influent channel, but are not Category 1 wetlands;and/or d) Wetlands having minimum existing evidence of human-related hysical alteration such as diking, ditching or channelization; and/or According to Renton Municipal Code(RMC)Chapter 4-3-050.M.1,"Wetland A"best meets this rating as a wetland with minimum evidence of human related physical alteration,but not meeting the criteria of a Category 1 or Category 3 wetland. Typically, Category 2 wetlands have a 50' buffer measured from the wetland edge. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4,2014 Page 7 3.2.3 Streams As previously mentioned, Honey Creek passes through Wetland A and the northeast corner of the site. As required by Code, the ordinary high water mark(OHWM)of the creek as flagged with white/blue dot flagging labeled W 1-W8 on the west side and El-E4 on the east side. This is depicted on the attached D.R. Strong Consulting Engineers Plat map. Honey Creek is a slow flowing mud and sand bottom stream as it flows northerly through the site. Trash,pallets and tires line the edge of the creek in this area, although otherwise,the stream appears relatively healthy with about 6"of flowing water across its channel. The stream is strongly influenced by stormwater outfalls upstream as flow in the channel was noted to quickly increase following a rain event. The stream buffer on the project site is very healthy and includes large deciduous and coniferous tree species with a dense native understory. To the east and off-site, this buffer has been impacted by clearing and use of the areas as lawn for single family homes to the east. Honey Creek is mapped as a Class 4 stream by the City of Renton. Class 4 streams are non-salmonid bearing waters during years of normal rainfall and/or mapped on Figure 4, Renton Water Class Map, as Class 4". According to RMC Title IV Chapter 4.03.050.L.5.a, Class 4 streams have a 35' buffer measured from the OHWM of the creek. Although Honey Creek is a non-fish bearing water in this reach, approximately % mile downstream of the site this creek does become fish bearing. As a result this portion of the creek(and associated wetland)has an important function in providing a hydrologic source and attenuating low flow periods of year for the downstream fish bearing section. Wildlife use of the creek is limited to typical urban tolerant wildlife including deer, raccoon,coyote, 4.0 FUNCTIONS AND VALUES Wetland A The wetland on-site was analyzed for function using the Washington State Department of Ecology Wetlands rating System for Western Washington. This system is typically utilized to classify wetlands,but the classification is function-based, scoring three main functions, 1,)water quality, 2)hydrologic function, and 3)habitat functions. Pipers Bluff`/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 8 Wetland A-Wetland A was rated as a riparian wetland and scored a total of 52 points indicating a Category 2 wetland under this system which indicates moderate-high overall functional value. Its highest scoring function was for water quality which scored 20 points, and its hydrologic function was moderate at 18 points. Habitat value was generally low at 15 points due to the lack of unique habitat features, lack of a variety of plant communities, and the close proximity of development to its boundaries. Honey Creek Honey Creek is a seasonal non-fish bearing stream. As previously mentioned,this upper reach of the stream is strongly influenced by the storm flows directed to the channel upstream of the site. This includes several previously approved plats by the City of Renton(see map below). ii II Mt% amyl- lr".y„VA 4+- _ .. . 0_6a.1Mil1liiti.m--in Om r111u1. i -. t. Illi ., 1 114SI r l N.location of untreated y,F,1111111 S_ .. rand undetained I 11111'lll-, .7.1 ai*'or!stormwater dischargeil: ovations of upstream " 11 - .Et.tormwater pond ontfalls ' ^ . Ala isiCnismitostream , !! 111111Ine ,w 1111af 1 1411;,i1E 11l1t11l1s: 4111 171r !1@IU11!1.i 1111HU ID ND ` III I y:'• I*t i 2"4 11 1 a _L 1 1 Emil nl I , r 1 ..r 11.>rg' re " 1Ls IL1Ii.i. . .... . [ rhiuII1 iil1 Nll!Ifl M Ent. 111 •. Y opN11L1•' sill / •. . Q/SZ. 11Niimai.,i.. r,- 1 i N. • st• r ri t;EVag rY1.: i:<r,i,.. : serfNil s E+M3r,:i516' 13 r.: : E,.ER.. t- _ rr alf-ae:Ra . sus 1 k 1111i1' r ( ji.1s i sr`e n.. y173, MEI ill I t=iA 11 Ilt p:'fly# SPIPPg.Rrto kori i,:c. :Ir.no MI FE eFillia ,; llt .11_.11t ' t. ple Ns!e4 K 1 AIPj9 4i!11g=, tn!i ru'.Nog rw4A a Map of current upstream storm flows into Honey Creek Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 9 At a minimum six(6) stormwater facilities currently discharge to Honey Creek upstream of the site,and there are several undetained,untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows,untreated stormwater, sediment loads from upstream sites(note mud and sand bottom throughout channel up and downstream) and as evidenced on the site,heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum %mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel,but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally,the ability of this stream to pass flows, maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. 5.0 REGULATIONS In addition to the wetland regulations previously described for wetlands and streams, certain activities(filling and dredging) within "waters of the United States"may fall under the jurisdiction of the US Army Corps of Engineers(ACOE). The ACOE regulates all discharges into "waters of the United States"(wetlands)under Section 404(b)of the Clean Water Act. Due to the increasing emphasis on Endangered Species Act compliance for all fills of Waters of the United State and Waters of the State,both the Corps of Engineers and Washington Department of Ecology should be contacted regarding permit conditions, compliance, and processing prior to commitment to any fill of wetlands or streams for this project. 6.0 PROPOSED PROJECT The proposed project is the construction of a 28 lot subdivision with associated access road, and storm water facility. The outlet of the stormwater facility will also pass through the wetland buffer. This is an exempt activity within the wetland buffer according to RMC Chapter 4-3-050.C. However, any area disturbed during installation of the outfall will be restored with native trees and shrubs. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 10 The Pipers Bluff project included the requirement to connect to the existing water main to the east of the site. This work included crossing of a Category 2 wetland as well as a Class 4 water. This crossing would have temporary impacts to the wetland, stream and buffer. This work was conducted by the prior plat owner prior to receiving approval for the work. In addition, due to a failure of the stormwater pond wall, some impacts to 2,290sf of the buffer, as well as 869sf of wetland occurred. This consisted of sediment flowing from the wall failure into the buffer,wetland and stream near the outfall of the vault. After the failure, sediment was removed from the stream, and the area was covered with straw and silt fences installed. The pond was retrofitted with a liner to prevent this from happening in the future. a. Nop. Above: looking east at area of water line crossing and impacted area from pond failure 4-28-14. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 11 V.7 y.. - Above and Below:Looking west at area of water line crossing and additional impact area from pond ailure 4-28-14. 4. r 4 S14!" 1 1: 444tr• 44" .. '4 * 4'44.1400„ r ani1 i.. Wit' i••!. •„.i `f s. d„_ h` "„- r,t a.` a •s•Sri: ^ r ' a` h i ti J, Pipers Bluffl#12-135 Sewall Wetland Consulting,Inc. June 4,2014 Page 12 Wetland and buffer impacts -Under City of Renton Municipal Code(RMC)Chapter 4-3- 050.M.8; 8. Wetland Changes—Alternative Methods of Development:If wetland changes are proposed for a non-exempt activity, the applicant shall evaluate alternative methods of developing the property using the following criteria in this order and provide reasons why a less intrusive method of development is not feasible. In determining whether to grant permit approval per subsection M2 of this Section, General Standards for Permit Approval, a determination shall be made as to whether the feasibility of less intrusive methods of development have been adequately evaluated and that less intrusive methods of development are not feasible. (Ord. 5676, 12-3-2012) a.Avoid any disturbances to the wetland or buffer; Avoiding the disturbance to the wetland, stream and buffer is not possible. The only way to access the existing water main is to cross the wetland, stream and buffer as depicted on the"Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13. This temporarily impacts a total of 424sf of wetland, 113sf of stream, and 969sf of buffer(total impact area 1,506sf). The disturbance(3,159sf total)to the buffer and wetland from the vault failure was unexpected and has occurred, so there is no way to avoid this disturbance at this point. b. Minimize any wetland or buffer impacts; The waterline will cross the wetland, stream and buffer in one of the narrowest area possible creating the least impact possible. The area of temporary disturbance is the bare minimum to get an excavator through the area. There is no alternative location for the water connection. The amount of disturbance to the buffer and wetland and stream from the storm pond failure was minimized during the clean-up and could not be avoided. c. Restore any wetlands or buffer impacted or lost temporarily; and The proposed restoration includes the replacement of topsoil within the excavated water line area to the original grades, and replanting with a dense layer of native trees and shrubs to restore the function and plant community to this area (see The Watershed Company Mitigation Plan). The area of the disturbance from the pond failure has had soils regarded to original grades and topsoil replaced. This area will be densely plated with native trees and shrubs see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 13 d. Compensate for any permanent wetland or buffer impacts by one of the following methods: i. Restoring a former wetland and provide buffers at a site once exhibiting wetland characteristics to compensate for wetlands lost; Not applicable, all wetland and buffer area disturbed will be restored to original condition with no loss of area or function. ii. Creating new wetlands and buffers for those lost; and NA iii. In addition to restoring or creating a wetland, enhancing an existing degraded wetland to compensate for lost functions and values. To compensate for the unexpected impact to 3,159sf of wetland and stream buffer and wetland, the remaining buffer area on the site outside the disturbance areas,will be planted with supplemental tree plantings in the form of western red cedar scattered through the understory. In addition, all blackberry and weedy species will be removed from the entire buffer area. Stream Buffer Impacts Per RMC 4-8-120 The following alternatives shall be analyzed, including justification of the feasibility of each alternative: i. Avoid any disturbances to the stream, lake or buffer by not taking a certain action, by not taking parts of an action, or by moving the action; Avoiding the disturbance to the stream and buffer is not possible. The only way to access the existing water main is to cross the wetland, stream and buffer as depicted on the Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13. This temporarily impacts a total of 424sf of wetland, 113sf of stream, and 969sf of buffer(total impact area 1,506sf). The disturbance(3,159sf total)to the buffer and wetland from the vault failure was unexpected and has occurred, so there is no way to avoid this disturbance at this point. ii.Minimize any stream, lake or buffer impacts by limiting the degree or magnitude of the action and its implementation by using appropriate technology and engineering, or by taking affirmative steps to avoid or reduce the impacts; Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4,2014 Page 14 The waterline will cross the stream and buffer in one of the narrowest area possible creating the least impact possible. The area of temporary disturbance is the bare minimum to get an excavator through the area. There is no alternative location for the water connection. The amount of disturbance to the buffer and wetland and stream from the storm pond failure was minimized during the clean-up and could not be avoided. iii. Rectifying the impacts by repairing, rehabilitating, or restoring the affected area; The proposed restoration includes the replacement of topsoil within the excavated water line area to the original grades, and replanting with a dense layer of native trees and shrubs to restore the function and plant community to this area (see The Watershed Company Mitigation Plan). The area of the disturbance from the pond failure has had soils regarded to original grades and topsoil replaced. This area will be densely plated with native trees and shrubs see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). iv. Reducing or eliminating the adverse impact over time by preservation and maintenance operations over the life of the action; Not applicable, as a portion of the existing impact is a permanent water line. v. Compensate for any stream, lake or buffer impacts by replacing, enhancing, or providing similar substitute resources or environments and monitoring the impact and taking appropriate corrective measures. To compensate for the unexpected impact to 3,159sf of wetland and stream buffer and wetland,the remaining buffer area on the site outside the disturbance areas,will be planted with supplemental tree plantings in the form of western red cedar scattered through the understory. In addition, all blackberry and weedy species will be removed from the entire buffer area. c. Impact Evaluation: i. An impact evaluation for any unavoidable impacts prepared by a qualified biologist, to include: a)Identification, by characteristics and quantity, of the resources (stream, lake) and corresponding functional values found on the site; Pipers Bh ff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 15 Approximately 100 linear feet of the Class 4 stream passes through the site. Honey Creek is a seasonal non-fish bearing stream. As previously mentioned,this upper reach of the stream is strongly influenced by the storm flows directed to the channel upstream of the site. This includes several previously approved plats by the City of Renton(see map below). At a minimum six(6) stormwater facilities currently discharge to Honey Creek upstream of the site, and there are several undetained,untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows,untreated stormwater, sediment loads from upstream sites (note mud and sand bottom throughout channel up and downstream) and as evidenced on'the site, heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum %mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel,but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally, the ability of this stream to pass flows,maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. b)Evaluation of alternative locations, design modifications, or alternative methods of development to determine which option(s) reduce(s) the impacts on the identified resource(s) and functional values of the site; The required connection to the water line to provide water service to the site is required for development. There is one location where this connection can occur and there are no other options. The water line connection was designed with the minimum necessary amount of disturbance and impacts to functions of the buffer and stream to be able to make the service connection. c)Determination of the alternative that best meets the applicable approval criteria and identify significant detrimental impacts that are unavoidable; The proposed(and now constructed)water line connection was the alternative with the least impact to critical areas that was available for water service to the site. The significant impacts were clearing of vegetation along the wetland, stream bank and buffer. These were unavoidable to construct the water line through the critical area corridor. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4,2014 Page 16 d) To the extent that the site resources and functional values are part of a larger natural system such as a watershed, the evaluation must also consider the cumulative impacts on that system; At a minimum six(6) stormwater facilities currently discharge to Honey Creek upstream of the site, and there are several undetained,untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows,untreated stormwater, sediment loads from upstream sites (note mud and sand bottom throughout channel up and downstream) and as evidenced on the site,heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum %mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel,but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally,the ability of this stream to pass flows,maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. e)For shorelines regulated by RMC 4-3-090, evaluation of how the preferred alternative achieves the standard of no net loss of ecological functions under RMC 4-3- 090D2. Not applicable ii. For a violation, the impact evaluation must also include: a)Description, by characteristics and quantity, of the resource(s) and functional values on the site prior to the violations; and The area of wetland and stream buffer, as well as wetland that was impacted by the storm water pond failure was under a power line easement and had been cleared of most large woody vegetation. Most of this area was blackberry with some salmonberry and vine maple and had trash and debris dumped in this area. Functionally this area prevented access to the stream and wetland as well as filtered some runoff prior to entering the stream. It also provided very minimal shading to stream waters. Although this blackberry thicket was removed, it did provide some protection to the wetland. All runoff from the site and NE 12th Street were undetained with no water quality treatment prior to entering the stream and wetland. b)Determination of the impact of the violation on the resource(s) and functional values. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 17 The temporarily impacts from the clearing associated with the storm pond failure consists of a total of 3,159sf total, consisting of 869sf of wetland and 2,290sf of buffer. There has been a temporary loss of stream and wetland buffer function that the vegetation previously present provided. This will be compensated for through the dense native plantings proposed in the mitigation plans which should functionally, restore this buffer to a condition better than the prior condition. Stream and stream buffer impacts-(RMC) Chapter 4-3-050.1.8b states these criteria needed for crossing of a stream and its buffer; 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 extent possible; and The stream is a non-fish bearing water. A Hydraulic Project Approval (HPA) was submitted and received for the project from WDFW and met all of their criteria for avoidance of critical habitat areas. As previously discussed for wtelands, this is the only location where the water line could be connected and therefore temporary impacts to the stream buffer were required. b) The utility is designed consistent with one or more of the following methods: 1)Installation shall be accomplished by boring beneath the scour depth and hyporheic zone of the water body and channel migration zone; or The boring was placed below the scour and hyporheic zone and was approved as appropriate by WDFW for a stream crossing with a utility. 2) The utilities shall cross at an angle greater than sixty (60) degrees to the centerline of the channel in streams or perpendicular to the channel centerline; or The crossing was a nearly perpendicular angle to the stream minimizing impact as required. 3) Crossings shall be contained within the footprint of an existing road or utility crossing; and NA c)New utility routes shall avoid paralleling the stream orfollowing a down-valley course near the channel; and The new line avoids paralleling the stream or following a down-valley course as required. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June 4, 2014 Page 18 d) The utility installation shall not increase or decrease the natural rate of shore migration or channel migration; and The construction method and restoration plan should restore the stream to a condition that will not increase or decrease the natural rate of shore migration or channel migration. As shown in the two mitigation plans for this project,the entire area of disturbance in the wetland and stream bank area will be densely planted with willow stakes. This will restore a dense plant community and stream bank canopy to this area. In addition, willows are very effective at soil stabilization and preventing erosion and channel migration from occurring within this portion of the stream. e) Seasonal work windows are determined and made a condition of approval; and The work was conducted during the seasonal work window approved by WDFW for the stream crossing project. 0 Mitigation criteria of subsection L3c(ii) of this Section are met. A mitigation Plan meeting this criteria("Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13)has been submitted to the City. In addition,the areas outside of this plan that were disturbed are covered by the Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting. The restored wetland, stream and buffer will be monitored 4 times in Year 1, and twice a year for 5 years as requested by the City and required by Code. 7.0 HYDROLOGIC ASSESSMENT The proposed project has been designed to avoid the wetland, stream and its associated buffer. However,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream. Wetland A is a narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of stormwater facilities located south of the site. The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surficial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal,with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation. The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. This should insure water Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. June'4, 2014. Page 19 that currently makes it.way from the site to the wetland and creek continues to do so. Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff dated January 31, 2013-see table below),there is a minor increase in the flow rates off , the site from pre-developed rates. This should insure the project will not dry out the wetland, and that adequate hydrology enters the wetland to maintain its viability: „ .. DESIGN INFORMATION I INDIVIDUAL BASIN i. Water Quality design flow Water.Quali y'treated volume I Drainage basin( ) Onsite area(inlcudes frontage) i 4.98 Otfsito area . 1 0 . Type of Storage Facility •. ' ' . Pond Live Storage Volume(re;uired) 69,132 Predev Runoff Rate . 2year. 1 0.139 10-year 0.241 100-year 0.402 . Developed Runoff Rate 2-year 0.928 10•year 11.12 100-year. 1.88 Type of.Restrictor I Frop-Too I Size of orifice/restriction No. 1' i 0.88 No.2 1.50 No.3 ' 11.40 Above::Tablefrom DR Strong Drainage Report If you have any questions regarding this report,please call us at(253) 859-0515 or at esewall@sewallwc.com.. Sincerely, . . Sewall Wetland Consulting Inc: Ed Sewall Senior Wetlands Ecologist PWS#212. Attached: Data Sheets. WADOE Rating Form Site Plan/survey Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 20 REFERENCES Cowardin, L., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service, FWS/OBS-79-31, Washington, D. C. Daubenmire,R. 1959. A canopy-coverage method of vegetational analysis. Northwest Science 33:43-64. Diers,R. and J.L. Anderson. 1984. Development of Soil Mottling. Soil Survey Horizons, Winter 1984,pg 9-15. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1. U. S. Army Corps of Engineers Waterways Experiment Station,Vicksburg, Mississippi. City of Renton Municipal Code Hitchcock, C. and A. Cronquist. 1976. Flora of the Pacific Northwest. University of Washington Press, Seattle,Washington. Munsell Color. 1988. Munsell Soil Color Charts. Kollmorgen Instruinents Corp., Baltimore, Maryland. National Technical Committee for Hydric Soils. 1991. Hydric Soils of the United States. USDA Misc. Publ.No. 1491. Reed, P., Jr. 1988.National List of Plant Species that Occur in Wetlands:Northwest Region 9). 1988. U. S. Fish and Wildlife Service, Inland Freshwater Ecology Section, St. Petersburg, Florida. Reed, P.B. Jr. 1993. 1993 Supplement to the list of plant species that occur in wetlands: Northwest(Region 9). USFWS supplement to Biol. Rpt. 88(26.9)May 1988. NE 1/4 SEC11014 10, TOWNSHIP 23 N, RANGE 5 E, W.M. I .7". 1 1.•-i.-_,4,4,..--z... _._ -. - .. _.! PIPER'SBLUFF,Id If I. • • .I CO ',.:..-,•ID 1 1.'••• 0 Ill---- ,.L k 4 h•• .......-Akifrftim.• ., --;iiValtil tbk•l' ' • A it•Mtid:1117-t.„„„,„....„.,,e....,-_,,,,,T_-.7,,,..,...,....,..,,I.,-,,,AT.g.y.ls,rizaT-7...531M.,,,,:pfra...Cila-1,1:..:1,7,0,711".a.-7•2‘71/111.113,21.,,--17 I.11.0"---PIS,...•`.--,11..,''' • .. . • •• • tURV.1. 1..VA'71r!.;Afk.k.?:;AS;.'a'gi'.t1;41V.gg•lIW.g.q1a2-.SNtiqW'4•PCFi';''4'fdPISY'''rU-E7..tZ/H.'fi:A'ilrir.-t''.;41E5'•'';'V''T.-;S''•-tItitO&.-a'V. ' . .• '--'''.4'.' 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SWal..W.p0S,,,,,,7,7,4/44700211rorsProor ts Alt cra ITIV-101[Lf.S 67116f SIM A_Yr motto*,..4.PUN.MIT 4,10,"SWAM'S, NOW&/MA 11.4t A STAMByPTHRDeOHR4 EviiNIGNEDGAAPomPROYEDy DBMI,ey III441°Via.. • IA.Inq't/00/..14 Plen mortar smart purr=CONIrci MN AMA.or 06 Rote 10!„,thr=14.0,....InViriztut soma Ail= TA<4 ne .a SWOT NO MCI TO=Calif=OM&MUSS Oneront&PM rire- q 71 .. _......... 11-•• •AI O.R.STRONGre _..,,,,_ c....,„ COMMON°0100i0012• e 4es an zes . s .,•"'i-i BA.7.2.„ PRONS.....nfl 402/1.9.160A31 113. . '. 1.1.1 A.9 NOTED L7= CITY OF AlIN RENTON PIPER'S BLUFF STROM BRAME PIM . ea-Za-fl 1CII A) si.o......ns. NO. REVISION - fiensIrg/S.Alcrol/Po0114 Wu..Mot. A-NN NIAIP WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys,and Coast Region Project/Site:1 o T .-) I•`'"\-- City/County: R`'J •'`) Sampling Date: 6_C r 1--I-- Applicant/Owner: Slate: Sampling Point 'b t'$ Investigator(s): 2il- &,(^' Lt Section,Township,Range: Landform(hllsiope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR): Lat Long: Datum: Soil Map Unit Name: NWI.classification: Are climatic!hydrologic conditions on the site typical for this time of year?Yes No I, (If no,explain in Remarks.) Are Vegetation- ,Soil ,or Hydrology significantly disturbed? Are"Normal Circumstances'present? Yes No Are Vegetation ,Soli ,or Hydrology naturally problematic? (if needed,explain any answers in Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects,important features,etc. Hydrophytic Vegetation Present? Yes No is the Sarapted Area Hydric Soil Present? Yes No Wetland within a Wetland? Yes No Hydrology Present? Yes No Remarks: .46arw .yr„, mar.. ..)) VEGETATION—Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet Tree Stratum (Plot size: Cover Species? Status Number of Dominant Species i. PS velviSalc /wG/7",,plli G.0 PfretJ That Are OBL,FACW,orFAC:I (A) 2.Total Number of Dominant 3.Species Across All Strata: B) 4.Percent of Dominant Species Total Cover That Are OBLL FACW,or FAC: 3 (AM) Sapl'mgrSf b Stratum (Plot size t. RA-.41,s oil,S co 4,-- P;Wv Prevalence index worksheet 2. 1-r.b+-s s -4 4, 3 V ,Pit-C. Total%Cover of: Multiply bv: 3.OBL species x i= 4.FACW species x 2= 5.FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Plot size: UPL species X 5= i. Pi lv,ah a Iwh, /M v-- ^ h'U fir Column Totals: A) B) 2 3. Prevalence Index=B/A= 4 Hydrophytic Vegetation indicators: 5.Dominance Test Is>50% e Prevalence Index Is 53.0' T.Morphological Adaptations'(Provide supporting data in Remarks or on a separate sheet) a' Wetland Non-Vascular Plants' B. 10. Problematic Hydrophytic Vegetation'(Explain) t 1. Indicators of hydric soil and wetland hydrology Must be present,unless disturbed or problematic. Total Cover Woody Vine Stratum (Plot size: 1.Hydrophytic 2.Vegetation Present? Yes Na Total Cover Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version a e . SOIL Sempllng Polht: bP Z- Profile Description: (Descrie to the depth needed to document the indicator or confirm the absence of Indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % Type' Loc2 Texture Remarks 3 % dvFF- G AP N#2,3/3 Type: C=Concentration,D=Depletlon,RM=Reduced Matrix.CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining,MaMatrix. Hydric Soil indicators: (Applicable to all Ll2Rs,unless otherwise noted.) indicators for Problematic Hydric Soils': Histosol(Al) Sandy Redox($5) 2 cm Muck(A10) Histic Epipedon(A2) Stripped Matrix(S5) Red Parent Material(TF2) Black Hlstic(A3) Loamy Mucky Mineral(El)(except MLRA 1) ^Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(A11) _Depleted Matrix(F3) Thick Dark Surface(Al2) Redox Dark Surface(F6) 3indlcators of hydrophytic Vegetation and Sandy Mucky Mineral(S1) Depleted Dark Surface(F7) wetland hydrology must be present, Sandy Gleyed Matrix(S4)Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(If present): Type: Depth(inches): Hydric Soil Present? Yes No Remarks: j c... J HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that sooty)Secondary Indicators(2 or more required) Surface Water(A1) Water-Stained Leaves(89)(except MLRA _ Water-Stained Leaves(89)(MLRA 1,2, High Water Table(A2) 1,2,4A,and 4B) 4A,and dB) Saturation(A3) Salt Crust(B11) Drainage Patterns(B10) Water Marks(B1) Aquatic invertebrates(B13) Dry-Season Water Table(C2) Sediment Deposes(82) Hydrogen Sulfide Odor(C1) Saturation Visible on Aerial Imagery(C9) Drift Deposits(83) Oxidized Rhizospheres along Living Roots(C3) Geomorphic Position(D2) Algal Mat or Crust(B4) Presence of Reduced Iron(C4) T Shallow Aguitard(D3) Iron Deposits(65) Recent iron Reduction in Tilled Soils(C6) FAC-Neutral Test(D5) Surface Soil Cracks(96) Stunted or Stressed Plants(01)(LRR A) Raised Ant Mounds(D6)(LRR A) Inundation Visible on Aerial imagery(B7) _ Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(B6) Field Observations: Surface Water Present? Yes No v Depth(inches): Water Table Present?Yes No pth(inches): Saturation Present? Yes No Depth(inches):Wetland Hydrology Present? Yes Nofr/ Includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: c 1 a. J?/ US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys,and Coast Region Project/Site: 1 City/county: sampling Date: 6— C — I L 11 Applicant/Owner: State: sampling Point W. 2- C t^'G investigator(s):e W'JU, Section,Township,Range: Landform(hilislope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR): Let Long: Datum: Soil Map Unit Name: NWI classification: Are climatic!hydrologic conditions on the site typical for this time of year? Yes No If no,explain In Remarks.) Are Vegetation, ,Soil• ,or Hydrology signiilcantly disturbed? Are"Normal Cl cunrtauces"present? Yes No Are Vegetation ,Soil ,or Hydrology naturally problematic? (IF needed,explain any answers in Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects,important features,etc. Hydrophytic Vegetation Present? Yes No is the Sampled Area Hydric Soil Present? Yes No Wetland Hydrology Present? Yes r/ No w a Wetland? Yes No Remarks: R,6 ove /tea r.h.1 I .,,,,,__,C'//a.. VEGETATION—Use scientific names of plants. Absolute Dominant indkxtor Dominance Test worksheet Tree Stratum (Plot size: Cover Species? Status Number of Dominant Species 1.That Are OBL,FACW,or FAC:Z (A) 2 Total 3.Sppecieess mber of Dominant B) 4' Percent of Dominant Species Saplino/Shrub Stratum (Plot size: Total Cover That Are OBL,FACW,or FAC: I O) (A/B) t, Pki vevde..M3 Q 04"C- Prevalence index worksheet 2. Total%Cover of: Multiply by: 3.OBI species x 1= 4.FACW species x 2= 5.FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Plot size: UPL species x 5= 1,47+tjr-c.. F 7 S k". . 3 b Column Totals: A) 8) 2 3. Prevalence Index=WA= 4.Hydrophytic Vegetation Indicators: 5.Dominance Test is>50% 6.Prevalence Index is s3.0' 7.Morphological Adaptations'(Provide supporting data in Remarks or on a separate sheet) 9 Wetland Non-Vascular Plante 10 Problematic Hydrophytic Vegetation'(Explain) 11 Indicators of hydric soil and Wetland hydrology must be present unless disturbed or problematic. Total Cover Woody Vine Stratum,? (Plot size: 1.Hydrophytic 2 Vegetation Present? Yes No Total Cover Bare Oraund in Herb Stratum Remarks: US Army Corps of Engineers. Western Mountains,Valleys,and Coast—interim Version SOIL Sampling Point: o Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % . Type' Loot Texture Remarks i l elYt• j ys l Type: C=Concentration,I Depiction,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Locatlon: PL=Pore Lining.M=Matrix. Hydric Solt indicators: (Applicable to ail LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': F1ietosol(A1) Sandy Redox(S5) 2 cm Muck(A10) Histic Epipedon(A2)Stripped Matrix(SS) Red Parent Material(TF2) Black Histic(A3)Loamy Mucky Mineral(F1)(except MLRA 1) ^Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(All) _Depleted Matrix(F3) Thick Dark Surface(Al2)Redox Dark Surface(FS) Indicators of hydrophytic vegetation and Sandy Mucky Mineral(S1) Depleted Dark Surface(F7) wetland hydrology must be present, Sandy Gleyed Matrix(S4) Redox Depressions(FS) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches): Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary indicators(minimum of one required;check all that apply)Secondary Indicators(2 or more required) Surface Water(Al) Water-Stained Leaves(B9)(except MLRA Water,Stained Leaves(B9)(IVILRA 4,2, H Water Table(A2) 1,2,4A,and 48) 4A,and 48) ration(AS) Salt Crust(B11) Drainage Patterns(810) Water Marks(B1) Aquatic invertebrates(B13) Dty-Season Water Table(C2) Sediment Deposits(B2) Hydrogen Sulfide Odor(C1) Saturation Visible on Aerial imagery(CO) Drift Deposits(83) Oxidized Rhizospheres along Living Roots(C3) Geomorphic Position(D2) Algal Mat or Crust(84) Presence of Reduced Iron(04) Shallow Aquitard(D3) Iron Deposits(B5) Recent iron Reduction in Tilled Solis(CS) _FAC-Neutral Test(05) Surface Soil Cracks(BS) Stunted or Stressed Plants(D1)(LRR A) _ Raised Ant Mounds(DS)(LRR A) Inundation Visible on Aerial Imagery(87) _ Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated CancaVe Surface(38) Field Observations: Surface Water Present? Yes No iSepth(Inches): Water Table Present?Yes No Depth(inches): b Saturation Present? Yes No Depth(inches): Q ) (> Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),If available: Remarks: US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version Wetland name or number Wetland name or number WETLAND RATING FORM-WESTERN WASHINGTON Does the wetland unit being rated meet any of the criteria below? Version 2-Updated July 2006 to increase accuracy and reproducibility among users If you answer YES to any of the questions below you will need to protect the wetland Updated Oct 2008 with the new WDI5W definitions forpriorityhabitats according to the regulations regarding the special characteristics found in the wetland. Name ofwetland(if known): tM•` p)133 ' *' Date of site visit:!- t ', h clr;`X;is;fdr'Wye ads 7"iaf;lG,tayNeed 9:ilcliti,oa i;'rbfection=: •:YES. .)YO Rated by Trained by Ecology? Yes No Date ortraining iu ttddllt{Dn to the titeetsos reCo diunenlied.foi•its categolry}.t SPI.Hoe the wetland unit been documented as a habitatfor any Federally listed SEC: TWNSHP: RNOE: Ia S/T/R in Appendix D? Yes_ No Threatened or Endangered animal or plant species(T/E species)? Map of wetland unit:Figure_ Estimated size For the purposes ofthis rating system,"documented"means the wetland is on the appropriate state or federal database. SP2.Has the wetland unit been documented as habitat for any State listed SUNIlVIARY OF RATING Threatened or Endangered animal species? For the purposes of this rating system,"documented"means the wetland is on the Category based o FUNCTIONSprovided bywetland appropriate state de !.Nora: er rages with State listed plant species are g r3> y categorized as Category!Natural Heritage Wetlands(see p.19 of data form). I II III IV SP3.Does the wetland unit contain Individuals ofPriority species listed by the WDFWYfor the stale? Score for Water Quality Functions 2 o SP4:Does the wetland untthave a local significance in addition to its functions? Category I m Score 70 example,For the wetland has been identified in the Shoreline Master Category II=Score 51-69 Score for Hydrologic Functions i P > Category IIL=Score 30 50 Score for HabitatFunotions f Program,the Critical Areas Ordinance,or in a local management plan as CategoryIV Score<30 having special significance. TOTAL score for Functions "-3 Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply To complete the next part of the data sheet you will need to determine the Hvdrozeomorphic Class of the wetland bean?rated Final Category(choose the"highest"category from above) C 7 ' The hydrogeomorphic classification groups wetlands into those that function in similar ways. This simplifies the questions needed to answer how well the wetland hnotions. The Hydrogeomorphio Class of a wetland can be determined using the key below. See p.24 for more detailed instructions Summary of basic information about the wetland unit on classifying wetlands. WetlandlJnitha Sp e[al t .'`: %.::; ;'•Wetlhiid,HGM.Cltss Estuarine Depressional Natural Heritage Wetland Rivcrine Bog Lake-fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal • None of the above Check if unit has multiple HOM classes present Wetland Rating Form—western Washington I August2004 Wetland Rating Fenn—western Washington 2 August2004 version 2 To be used with Ecology Publication 04-06-025 version 2 Updated with now WDFW definitions Oct 2008 Wetland name or number_ Wetland name or number Classification of Wetland Units in Western Washington 5.Does the entire wetland unit meet all of the following criteria? . ePCie unit is in a valley,or stream channel,where it gets inundated by overbank floc big from that stream or river Ethe:Iiydkol6gte.urltBtla listed'iir each fui sti'bn le:lioh9 ly fb tlicen.n.. .,>niiif;lititng; ': a overbank flooding occurs at least once every two years. rafeilsyou ptebnbIy troves iirilEii.(tfi=xnur18131e$G)vIctasSesT n this lase,identitj+ivlilc x :,,NOTE:The riverine unit can contain depressions that are filled with water when the river fs 10x,ologreiiiitet4 initatl"604-+ ;40,K•;eridg:ia:Qtiesflbn::= - not/loading.f`'"' ' NO-go to 6 ES—The wetland class is Riverine 1.Are thevels in the entire unit usually controlled by tides(i.e.except during floods)? 6.Is the entire wetland unit in a topographic depression in which water ponds,or is saturated to the o YES—the wetland class is Tidal Fringe surface,at some time during the year. This means that any outle4((present,Is higher than the If yes,is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per interior of the wetland t •NO—go to 7 YES—The wetland class is Depressions' thousand)? YES—Freshwater TldalFringe• NO—Saltwater Tidal Fringe(Estuarine) fyora wetland can be classified as a Freshwater Tidal Fringe use the forms for Riverine 7.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank wetlands tlan is eSaltwater Tidal Friage it Isn rated as an range use wthtlande Wetlands that flooding. The unit does not pond surface water more than a few inches.The unit seems to be were called estuarine in the first and second editions of the rating system are called Salt maintained by high groundwater in the area. The wetland may be ditched,but has no obvious natural outlet. Water Tidal Fringe in the Hydrogeomorphio Classification. Estuarinewetlands were categorized separately in the earlier editions,and this separation is being kept in this NO—go to 8 YES—The wetland class is Depressional revision. To maintain consistency between editions,the term`Estuarine"wetland is kept. Please note,however,that the oharacteristics that define Category I and II estuarine 8.Your wetland unit seems to be difficult to classify and probably contains several different HGM wetlands have changed(see p. ). closes. For example,seeps at the base of a slope may grade into a riverine floodplain,or a small stream within a depressional wetland has a zone of flooding along its sides.GO BACK AND 2.The entire wetland unit is flat and precipitation is the only source(>90%)of water to it IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED 1N QUESTIONS 1-7 Groundwater and surface water runoff are NOT sources of waterto the unit.APPLY TO DIFFERENT AREAS IN THE UNIT(make a rough sketch to help you decide).Use o • YES—The wetland class is Flats the following table to identify the appropriate class to use for the rating system if you have several If your wetland can be classified as a`Plats"wetland,use the form for Depressional HGM classes present within your wetland.NOTE:Use this table only if the class that is wetlands. recommended in the second column represents 10%or more of the total area of the wetland unit being rated.If the area of the class listed in column 2 is less than 10%of the unit;classify the 3.Does the entire wetland unit meet both of the following criteria? wetland using the class that represents more than 90%of the total area. The vegetated part of the wetland is on the shores of a body of permanent open water without any vegetation on the surface)at least 20 sores(8 ha)in size;tNGtik (assesifll'firtthhieetlantY.unYlbet»g'r diet': • . HG'?l Class:to-Usi idEatfng:-.. t least 30%of the open water area is deeper than 6.6 ft(2 m)?Slope+Riverine Riverine O—go•• • YES—The wetland class is Lake-fringe(Lacastrine Fringe) Slope+Depressional Depressional 4.Does the entire wetland unit meet all of the following criteria? Slope+Lake-fringe Lake-fringe The wetland is on a slope(slope can be very gradual), Depressional+Riverine along stream within boundary Depressional The water flows through the wetland in one direction(unidirectional)and usually Depressions'+Lake-fringe Depressional C comes from seeps. It may flow subsurface,as sheetflow,or in a swale without Salt Water Tidal Fringe and any other class of freshwater Treat as ESTUARINE udder distinct banks. wetland wetlands with special The water leaves the wetland without being impounded?characteristics NOTE: Surface water does not pond in these type ofwetlands except occasionally in very small and shallow depressions or behind hummocks(depressions are usually If you are unable still to determine which of the above criteria apply to your wetland,or if you diameter and less than 1 foot deep). have more than 2 AGM classes within a wetland boundary,classify the wetland as Depressions' NO-go to 5 YES—The wetland class is Slope for the rating. Wetland Bnting Form—western Washington 3 August2004 Wetland Rating Form—western Washington 4 August 2004 version 2'Updated with new WDF\V definitions Oct.2008 version 2 Updated with new WDFW definitions Oct.2008 Wetlandnamo or number Wetland name or number I.ti'¢oriida;aYi(4,..'eshitttitellidfd Xiii`eyktIgitr-,: ;' :•$. s; :Tifilits-::: r e:•r h i' riin t:Wet >i>sP itix:J r. verine:ariil::i'es Fyaicir dul' iiil9dµ`oitbifatiti:` rD`.t+""`:( W` , 'U' :?TGTIOL T':`iifitfef4l R4lieCW tla`n 'Kitt ni v S`=%T•""oetbr` `e`ive7la ifiitibfidtis to}editao: ''71tO>St(tI TtC1N ndi s th na; R 1.Does the wetland unit have thepotential to improve water quality? see p.52)c';`t iloaditi:eti-steam:ertision^>.;.:•':i.,'•.:,.,.,.`...•.`:.... ..;.::. ..:::. .> ,• :.`• R3.Does the wetland unit have the potential to reduce flooding and erosion? (see p.54) R R 1.1 Area of surface depressions within the riverine wetland that can trap sediments Figure_ R R3.1 Characteristics ofthe avcrbank storage the unit provides: Figure during a flooding event Estimate the average width ofthe wetland unit perpendicular to the direction of the Depressions cover>3!4 area of wetland points=8 flow and the width ofthe stream or river channel(distance between banks). Calculate Depressions cover>U2 area of wetland points=4 the ratio:(average width ofunny(average width ofstream between banks). if depressions>'14 of area of unit draw polygon3 on aerial photo or m-` Iftheratio is more than 20 points=9Depressionspresentbutcover<1/2 area of wetland 1' No depressions present points=0 Z.the ratio is between 10—20 points=6 R12Chamateristicsof the vegetation in the unit(areaawith>90%cover etpersoaheight: Figure_ Ifthoratiois5-<10 F= RIf the ratio.is 1-<5 Itntli Trees or shrubs>2/3 the area of the unit Ifthe ratio is<1 pointss=1lTreesorshrubs>1/3 area of the unit points 6 Aerial photo or map showing average widths tJngrazed,herbaceous plants>2/3 area ofunit points=6 R3.2 Characteristics of vegetation thatslowdown water velocities during floods:Treat Figure_ Ungrezed herbaceous plants>1/3 area ofunit points=3 R large woody debris as forest or shrub". Choose the points appropriate for the best Trees,shrubs,and ungrazed herbaceous<1/3 area of unit points=0 description.(polygons need(clime>90%cover stpersonheightNOT Cowerdin classes:Aerial photo or map showing polygons of different vegetation types Forest or shrub for>1/3 area OR herbaceous plants>2/3 area . R Add the paints in the bares above I l p i Forest or shrub for>1/10 area ORherbaceous plants>1/3 area po.is=4 not meet above criteria pointsdoes0 R. R 2.Does the wetland unit have the onnortunity to Improve water quality?see p.53) VegetationAerial photo or map showing polygons of d8ferentvegetation types 7 Answer YES If you}mow or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in streams,lakes or R Add the points in the boxes above 1 CI I groundwater dowagradient from the wetland?Note which ofthefollowing conditions e1 provide the sources ofpollutante Aunitmayhave pollutants comtngfrom several R R 4.Does the wefthe ut isin a l tthe onuohe watt'fo deduce flooding and erosion? (see p.57) sources,but any single source would qualify as opportunity. reduction in if the eluno iti, it location in theprotectute downstreamed where the flood and storage,or g in the wetland or within 150ft reduction in water velocity, provides helps property and aquatic razing stoe e dischargest t5 wetland resourcest flooding or excessive and/or erosive flows.Note which ofthe following p apply. Tilled fields or orchards within 150 feet of wetland le-There arehumen structures and activities downstream(roads,buildings,bridges, A stream or culvert discharges into wetland that drains developed areas, farms)that can be damaged by flooding. w. yegidential areas,farmed fields,roads,.or clear-cut logging There are natural resources downstream(e.g.salmon redds)that can be damaged Residential,urban areas,golf courses are within 150 ft of wetland by flooding The river or stream linked to the wetland has a contributing basin where human Other multiplier activities have raised levels of sediment,toxic compounds or nutrients in the river Answer NO ithe major source ofwater to the wetland is controlled by a reservoir or the water above standards for water quality multiplier wetland is tt o the sides ofa dike) Z Other YES ultiplier i,,,..4.2.9r )NO multiplier is 1 YES m 'ller NO multiplier is 1 R TOTAL-Hydrologic Functions Multiply the score from R 3 by R4 / R TOTAL-Water Quality Functions Multiply the score from R 1 by R2 y„ Add scare to table on p.1 ` Add score to table on p.1 V Comments Comments Wetland Rating Fenn—western Washington 7 August2004 Wetland Rating Form—western Washington 8 August2004 • version 2 Updated withnow WDFW definitions Oct.2008 version 2 Updated with new WDFW definitions Oct 2008 Wetland name or number Wetland name ornamber j,:kilijl .) H 1.4.Interspersion of habitats(seep 76) Flgure_ li a ii-.si`co•••' •;.;'• , Iirliils p. 7l$:$!"G1G.c iiss '• 1, 2.y :'. -f. s'c;: - -`;4`' Y aidrl'trtra;Decide from the diagrams below whether interspersion between Covmrdin vegetation I ABIT iN iphrl • B t•' .. A:T 'I'1`ON:=uii["caters;ti'atUdiY:ulicfl ipsfo`p if`vic hi bi[9At+infi t= 'i•?=••l+g6g.•classes(described in H 1.1),or the classes end unvegeiated areas(can include open water or Hi.Does the-wetland unit have the potential to provide habitat for many species? mudflats)is high,medium low,or none. H 1.1 Vegetation structure(seep.72)Figure_ Check the typos ofvegetattonthanclasses preheat(as definfunit Isd sy C erthan)- Slac threshold foreaeh class is 14 acre or more than 10%of the area lf unit smaller than 2.5 acres. O Aquatic bed Futergent plants S ulb/shrub(areas where shrubs have>30%Dover) None=0 points Low=1 pd Moderate a 2 points vProrested(areaswheretreeshave>30%cover) 9'" '51b I the ualthas a oresled class check l: . The forested class has 3 out of 5 strata(canopy,sub-canopy,shrubs,herbaceous moss/ground-cover)that each cover 20%within the forested polygon j= 1;:' ' Add the number ofvegetation structures that quabfy.Ifyou have: Y .: 4 structures or more points=4 Map of Cowards!vegetation Usases 3 structures points=2 2 structures points=1 t riparian braided channels] 1 structure points=0gh=3 points H 1.2.jivdroceriods(seep.73) Flgure__ NOTE:If you have four or more classes or three vegetation classes and open water Check the types of'water regimes(hydroperiods)present wtthira the wetland The water the rating is always"high". Use map of Cowardln vegetation classes regime has to cover more than 10%of the wetland or t/ acre to count.(see text for H 1.5.Special Habitat Features:(seep.77) descriptions ofhydroperlodr) Check the habitat features that are present in the wetland The number ofchecks Is the Permanently flooded or inundated 4 or more types present points=3 number ofpolnts you put into the new column. seasonally flooded or inundated 3 types present points=2 . i/Large,downed,woody debris within the wetland(>4in.diameter and 6 ft long). Occasionally flooded or inundated 2 types present point=1 Standing snags(diameter at the bottom>4 inches)in the wetland Saturated only 1 type present points=0 Undercut banks are present for at least 6.6 ft(2m)and/or overhanging vegetation extends atPermanentlyflowingstreamorriverIn,or adjacent to,the wetland least 33 ft(lm)over a stream(or ditch)in,or contiguous with the unit,for at least 33 ftSeasonallyflowingstreamIn,or adjacent to,the wetland Freshwater wetland=2 points j 10m) Freshwatertidalwetlend=2points Mepofhydropedods Stable steep banks ofRai material entbeav be used by beaver orutmuskrathrufor damriag 30degree slope)OR signs of recent beaver activity are present(cut shrubs or trees that H 13.Richness of Plant$aaeeles(seep 75) have not yet turned grey/brown) Count the number of plant species in the wetland that cover at least 10 ft_.(different patches At least Kama of thin-stemmed persistent vegetation or woody branches are presentin areas ofthe same species can be combined to meet the sire threshold) that are permanently or seasonally inundated(structures for egg-laying by amphibians) You do not have to name the species.Invasive plants cover less than 25%of the wetland area in each stratum of plants Do not include Eurasian Milfotb reed canarygrass,purple loosestrtfe, Canadian Thistle NOTE:The 20%stated in early printings of the manual on page 78 is an error. 2— Ifyouceunted 19specias points=2 List species below tfyou want to: 5-19 species -pot 0 H 1.TOTAL Score- potential for providing habitat I 5 species Add the scores from H1.1,HL2,H1.3,H1.4,H1.S I I Comments Total for page 3 Wetland Rating Form-western Washington 13 August2004 Wetland ltstlngEetm-'wcetcm Washington 14 August2004 version 2 Updated with now WDFW defmigoas Oct.2008 version2 Updated with new WDFW definitions Oat.2008 Wetland name or rumba Wetland name or numbs_ H 2.3 Near or adjacentto other priori habitats listed by WUFW(see new and complete 2(2,Does the wetland unit have the opportunity to provide habitat for many species? • descriptions ofWDFIVpriority habitats,and the carbides In which they can befow:d in H2.1Puffers (seep 80) Figure_ ihe!HSreport hitp:/hwlfivwaQov/hab/nhslisUhhn) Choose the description that best represents condition of br{Jf er ofwethmd unit.The highest scoring Which of the following priority habitats are within 330ftX100m)of the wetland unit?NOTE the criterion that applies to the wetland is to be used in the rating.See text for definition of connections St do not haveorr ib d standsdsyofaspen gad undisturbed' Aspen Stands:Pure inured aspen greater than 0.4 ha'(1 acre). 100 m 30ft ofrolativel undisturbed vegetated areas,rocky areas,or openwater>95%Biodiversity Areas and Corridors:Areas ofhebitat that arerelatively important to various Y 8 species ofnative fish and wildlife(fall descriptions to WDFWPHS report p.152). of oircumfesence. No structures are within the undisturbed part of buffer. (relatively erbaceous Balds:Variable size patches of grass andtfarbs on shallow soils over bedrock. undisturbed:also means no-grazing,no landscaping,no daily human use) Points=5 Old-growth/Mature forests:(Old-growth west of Cascade crest)Stands of at least 2 tree 100 m(330 ht)of relatively undisturbed vegetated areas,rocky areas,or open water>species,forming a multi-layered canopy with occasional small openings;with dt least 20 50%circumference. Points=4 trees/ha(8 trees/acre)>81 ern(32 in)dbh or>200 years of age. (Mature forests) Stands 50 m(170ft)ofrelatively undisturbed vegetated areas,rocky areas,or open water>95% with average diameters exceeding 53 cm(21 in)dbh;crown cover may be less that 100%; circumference. Points=4 crown cover may be less that 100%;decay,decadence,numbers of snags,and quantity of 100 m(330it)ofrelativelyundisturbed vegetated areas,rocky areas,or open water>25% large downed material is generally less than that found In old-growth;80-200 years old circumference,. Points=3 west of the Cascade crest. 50 m(170ft)of relatively undisturbed vegetated areas,rocky areas,or open water for> Oregon white Oak:Woodlands Stands of pure oak or oak/eonifer associations where 50%cirouniferenco. Points=3 canopy coverage of the oak component is important(uil descriptions in IVDFIGPHS If buffer does not meet any of the criteria above i eepport p.158). No paved areas(except paved trails)or buildings within 25 m(80ft)of wetland>95% vRiparian:The area adjacent to aquatic systems with flowing water that contains'elements of circumference.Light to moderate grazing,or lawns are OK. Points=2 both aquatic and terrestrial ecosystems which mutually influence each other. No paved areas or buildings within 50m of wetland for>50%circumference. Westside Prairies: Herbaceous,non-forested plant communities that can either take the Light to moderate grazing,or lawns are OK.1 form of a dry prairie or a wet prairie(idl descriptions in WDFWPHS report p..161). Heavy grazing In buffer. Points=1 Bnstream:The combination of physical,biological,anti chemical processes and conditions Vegetated buffers are<2m wide(6.6ft)for more then 95%of the circumference(e.g.titled that interact to provide functional Iife history requirements for instresm fish and wildlife fields,paving,basalt bedrock extend to edge of wetland Points=0. resources. 7 Buffer doestnotmeet any of the criteria above. Points=1 Nearshore:Relatively undisturbed nearahore habitats.These include Coastal Nearshore, Aeriai photo showing buffers Open Coast Nearshore,and Puget Sound Nearshore.(full descriptions ofhabitats and the H 2.2 Corridors and Connections(seep 81) definition ofrelatively undisturbed are in WDFW report:pp.167-169 and glossary in H 2.2.1 lathe wetland part of arelatively undisturbed and unbroken vegetated corridor Appendix A). either riparian or upland)that is at least 150 ft wide,has at least 30%cover ofshmbs,forest Caves:A naturally occurring cavity,recess,void,or system of interconnected passages under or native undisturbed prairie,that connects to estuaries,other wetlands or undisturbed the earth in soils,rock,ice,or other geological formations and is large enough to contain a uplands that are at least 250 acres in size?(dams In riparian corridors,heavily used gravel human. roads,paved roads,are considered breaks In the corridor).Cliffs:Greater than 7.6 m(25 ft)high and occurring below 5000 ft. YES=4 points, (go to H 2.3) O=go to 2,2 Talus:Homogenous areas of rock rubble ranging in average size 0.15-2.0 m(0 Ii-6.5 ft), H 2.2.2 lithe wetland part of arelativelyundisturbed and rokeletatedcorridor composed of basalt andeslte,and/or sedimentary roolr,including riprap slides and mine either riparian or upland)that Is at least 50ft wide,has at least 30%cover of shrubs or tailings.May be associated with cliffs. forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 Snags and Logs: Trees aro considered snags ifthey are dead or dying and exhibit sufficient acres in size?tOR a Lake-fringe wetland,if it does not have an undisturbed corridor as in decay characteristics to enable cavity excavationluselby wildlife.Priority snags have a the question above? diameter at breast height of>Si cm(20 in)in western Washington and are>2:m(6.5 ft)in YES=2 points(go to H2.3) NO=H 2.23 height.Priority logs are>30 cm(12 in)in diameter at the largest end,and>6 m(20 ft) H 2.2.3 Is the wetland: long. within S mi(Shim)of a brackish or salt water estuary OR If wetland has 3 or more priority habitats=4 points within S mi of a large field or pasture(>40 acres)OR If wetland has 2 priority habitats=3 points within A mi alp greater than 20 ores? If wetland has 1 priority habitat=1 point No habitats=0 points 1 +IRR NO=0polnts Note:All vegetated wetlands are by definition a prlorky habitat but are not Included in this 3list.Nearby wetlands are addressed inquest(onH2i4) Total for page L Wetland Rating Form-western Washington 15 August2004 Wetland Rating Form-western Washington 16 August 2004 version 2 Updated with new WDFW deflnitiom Oct 2008 version 2 Updated with new WDFW definitions Oct 2008 I Wetland mate or number_ Wetland name or number CATEGORIZATION BASED ON SPECIAL CHARAC:i'LRISTICS H2.4 Wetland Landsoaoe(choose the one description of the landscape around the wetland that bestfts)(seep.849 There are at least 3 other wetlands within%4 mile,and the connections between them are Please determine if the wetland meets the attributes described below and circle the relatively undisturbed(light grazing between wetlands OK,as is lake shore with some appropriate answers and Category. boating,but connections should NOT be bisected by paved roads,ffif,fields,or other development points=5 Wetlaiad Type:Category The wetland is Take-fringe on a lake with little disturbance and there are 3 other lake-fringe wetlands within%mile points 5 Checkoff any.criteria that apply to the wetland Circle the Category when the Thera are at leant 3 other wetlands within'i4 mile,BUT the connections between them ar appropriate criteria are met: disturbed a SC 1.0 Estuarine wetlands(seep.84) The wetland is lake-fringe on a lake with disturbance and there are:3 other lake-fringe Does the wetland unit meet the following criteria for Estuarine wetlands? wetland within'%mile points=3 There is at least I wetland within'h mile. . points=2 The dominant water regime is tidal, There arena wetlands within t mile. points=0 Vegetated,and 3 With a salinity greater than 0.5 ppt. H 2.TOTAL Score- opportunity for providing habitat I Q I YES=Go to SC 1.1 NO_ Add the seoresfrom H2.1,H2.2,H2.3,H2.4 1 I SC 1.1 Is the wetland unit within aNational Wildlife Refuge,National Park, TOTAL forth 1 from page 14 1 National Estuary Reserve,Natural Area Preserve,State Park or Educational, Cat.I Environmental,or Scientific Reserve designated under WAC 332-30-151? Total Score for habitat Functions-ada the points for H 1,H 2:and record the result on YES=Category I NO go to SC 1.2 p•1 / SC 1.2 Is the wetland unit at least 1 acre in size and meets at least two of the following three conditions? 'YES=Category I NO=Category II Cat.I The wetland is relatively undisturbed(has no diking,ditching,filling,Cat Il cultivation,grazing,and'has less than 10%cover of non-native plant species.If the non-native Spartfna app.are the only species that cover more than 10%of the wetland,then the wetland should be given a dual Dual rating(I/II). The area of Spartina would be rated a Category It while the rating relatively undisturbed upper marsh with native species would be a VII Category I. Do not however,exclude the area of Spartina in determining the size threshold of 1 aore. At least a/s of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or un-grazed or un-mowed grassland. ' The wetland has at least 2 of the following features:tidal channels, depressions with open water,or contiguous freshwater wetlands. Wetland2atingFerm-western Washington 17 August2004 Wetland Rating Form.-western Washington 18 August2004 version 2 Updated with new WDPW definition Oct.2008 version 2 Updated with new WDFW definitions Oct 2008 a Technical Memorandum o a To: Rocale Timmons,Senior Planner Chy of ef on City of Renton Planning Division 10230 NE Points Drive From: Kevin O'Brien, Senior Ecologist_ JUL. 2 0Lii14 Suite 400 Kirkland, ) 8 98033 4446 DPhone(425)822-4446 Copies: File Fax(425)827-9577 Date: July 22,2014 Pipers Bluff Supplemental Independent Subject: Secondary Review—Wetland Mitigation Project No.: 32385.B This technical memorandum provides additional review of material submitted for the Pipers Bluff Plat project(LUA13-001568),a five-acre site located in the City of Renton. The request for a critical area variance for activities within critical areas and critical area buffers (City of Renton LUA13- 001568) submitted by the applicant—originally WestPac Homes LLC, subsequently Conner Homes—to the City of Renton (City).The critical area variance is for installation of an 8-inch water main, contained within a 16-inch steel sleeve,beneath Honey Creek,an associated riparian wetland, and buffers for the stream and the wetland. Installation of the water main is a required component of the 30-lot subdivision with associated access road and storm water facility on the Piper's Bluff site. Otak previously conducted reviews on project documents including a critical area report and supplemental stream study,a restoration plan,and a letter of justification for the water main crossing on the site. Otak prepared a Memorandum of Findings (dated April 9,2014) for this work,and the project applicant has provided additional/revised documentation for the project. The following documents were reviewed in terms of compliance with the critical areas sections of the City code: Piper's Bluff Wetland&Creek Restoration Plan (Sheets 1 through 5) prepared by The Watershed Company,and dated July 31,2013; Piper's Bluf/#12-135 Water Main Crossing Justification Memorandum, prepared by Sewall Wetland Consulting,Inc.,dated December 4,2013; Pipers Blt ff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc., dated April 15,2013; Otak Rocale Timmons, Senior Planner, City of Renton Page 2 Piper's Bh ff'SupplementalIndependent Secondary Review--Wetland Mitigation July 22,2014 Pipers Bluff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc.,dated June 4,2014; Piper's BluffMitigation,Monitoring and Maintenance Narrative,prepared by Sewall Wetland Consulting,Inc.,dated June 4,2014; Plat ofPiper's Bluff—Supplemental Critical Area Restoration Plan,prepared by Sewall Wetland Consulting,Inc.,dated May 19,2014 and revised June 4, 2014;and Piper's Bluff—Technical Memorandum Response,prepared by Sewall Wetland Consulting,Inc., dated June 4,2014 The Critical Area Report (CAR) and Supplemental Stream Study (SSS) identify an on-site Category 2 wetland per the City of Renton Municipal Code (RMC),and a Class 4 stream—also per the RMC— associated with the wetland. The Water Main Justification Memo outlined the rationale for meeting the City's criteria for changes to a wetland for a non-exempt activity,as well as the City's criteria for crossing of a stream and its buffer;this information was subsequently incorporated into the June 4, 2014 Pipers Blr f Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study. All impacts to the wetland,stream,and buffers,regarding the water main crossing,would be temporary in nature. The Wetland&Creek Restoration Plan is designed to mitigate for the vegetation removal resulting from the project, through enhancement planting. The planting plan is expected to restore functions to the impacted area. Otak biologists visited the site on February 27,2014,to evaluate demonstration of compliance with RMC Critical Areas Regulations, evaluate the effectiveness of proposed mitigation,and provide alternative mitigation measure for proposed impacts if necessary. An Otak biologist made an additional site visit on March 30,2014. Subsequent to receiving the June 4,2014 revised documents, representatives from Otak,Sewall Wetland Consulting,Conner Homes,and the City of Renton met on site on July 14,2014. Summary: In order to meet City code and requirements for critical areas and critical area variances, a number of recommendations and requirements were submitted to the City of , Renton in the Otak April 9,2014 memo. Minor modifications to the June 4,2014 revised documents provided by Sewall Wetland Consulting, Inc,indicated below,will be sufficient to demonstrate compliance with the City of Renton's Municipal Code requirements for a critical area variance request. The following represent relevant Otak comments (italics) from the April 9,2014 memo, followed by responses (normal text) from the June 4 documents provided by Sewall Wetland Consulting,Inc. Otak's review and response to Sewall Wetland Consulting,Inc. follows in bold. Otak Rocale Timmons, Senior Planner, City of Renton Page 3 Piper's Bluff Supplemental Independent Secondary Review—Wetland Mitigation July 22,2014 Otak Comment 1 No wetland flags were present on the date of our site visit, and wetland delineation confirmation was not possible given construction activities and site disturbance that had already occurred However, using the plan setfrom the Wetland and Stream Restoration Plan, along with field observations, we do not believe inaccuracy of the wetland delineation to be of concern. We also agree that the wetland meets the criteria for a Category 2 wetland under RMC 4-3-050(M), and the stream appears to be a Class 4 (non-salmonid bearing, intermittent hydrologic regime)ystem per RMC 4-3- 050(L). Recommendation:None Sewell response: No response was necessary to this comment Otak response: Comment 1 addressed. Otak Comment 2 Sometime between Otak's initial and second site visits, the vault facili0 failed, subsequent/y releasing substantial amounts offine sediment from the stormwater vault into the wetland and stream ystem and their buffers, along with scour and downcutting at the vault discharge point(see Photos 1 and 2). Following the vaultfacilig failure,fine sediment was noted in the stream and surrounding riparian habitat(Photo 3), and substantial i1flling of a downstream pond by fine sediment was reported by a nearby landowner(Nonis,Jim)during the March 30 site visit Photo 4). Such adverse impacts to the wetland, stream, and buffer warrant compensatory mitigation. Recommendation: We recommend that the applicant provide a compensatory mitigation plan for the above impacts associated with the vault failure. The compensatory mitigation plan should be designed to improve the entire wetland!stream'bueer corridor on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan usedfor construction impacts to critical areas as well as stream impacts resulting from the water line installation. Sewell response: All of the requested elements have been incorporated in the attached "Plat ofPipers Bluff—Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting,Inc. Specifically: The"Pipers Bluff Supplemental Critical Areas Restoration Plan" prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland, streams and buffers as well as plantings throughout the impacted areas as well as tree underplanting within the undisturbed buffer areas.These mitigation measures should not only enhance,but improve the function of the buffer on the site. Otak Rocale Timmons, Senior Planner, City ofRenton Page 4 Piper's BlufSupplementalIndependent Secondary Review—Wetland Mitigation July 22,2014 The proposed plantings as shown on the"Pipers Bluff Supplemental Critical Areas Restoration Plan" prepared by Sewall Wetland Consulting are beyond the previously identified planting corridor and will provide the features and functions identified above. The "Pipers BluffSupplemental Critical Areas Restoration Plan" prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland, streams and buffers. The Sewall Wetland Consulting Plan matches the goals and objectives of the elements of The Watershed Plan,however it is supplemental to The Watershed Plan and should be implemented in conjunction with that plan as they both cover different parts of the site schematically. Otak response: Sheet 2 of the Pipers Bluff Supplemental Critical Areas Restoration Plan calls out Sitka willow live stakes,with plantings of live stakes to be associated with vault stormwater outflow path (see Sewell response to Comment 5 below). Please include appropriate schematic and location for live stakes in planting plan view on Sheet 2. Otherwise, Comment 2 addressed. Otak Comment 3 The area impacted by vegetation removal in the wetland, stream, and associated buffer is larger than depicted on the Wetland&Creek Restoration Plan. Site visits confirmed that the area from which vegetation has been removed is larger than the 15 foot-wide replanting corridor depicted in the Restoration Plan. Recommendation: The restoration planting plan should he revised to present a larger fooVint for restoration. The revised plan should include restoration plantings in areas ofgeneral construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. Due to the proximity of the stormwater vault ouffall and the risk of stormwater scouring out or otherwise imposing disturbances to the proposed restoration plantings as well as the nearby vegetation, we recommend that the existing monitoring plan outlined in the Wetland&Creek Restoration Plan would also be applied to this area. Sewell response: These elements have been incorporated in the attached "Plat of Pipers Bluff— Sapplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Plantings in the general area of disturbance have been added,as well as plantings to stabilize the flowpath from the stormwater outflow.The existing monitoring plan has been added to match that outlined in the previous mitigation plan. Otak response: Comment 3 addressed. Otak Rocale Timmons, Senior Planner, City of Renton Page 5 Piper's Bluff Supplemental Independent Secondary Review—Wetland Mitigation July 22,2014 Otak Comment 4 According to the Water Main Crossing Justification Memo, the restored wetland, stream, and buffer will be monitored four times in Year 1, and once ayear forfive years as required by Code. However, the Wetland&Creek Restoration Plan states monitoring should take place twice annually for five years. Recommendation: It is our recommendation that the latter monitoring schedule (monitoring twice peryearforfive years)be followed due to the possible impactfrom the proposed outfall and the existing impactfrom the faciliy failure. Per the Wetland&Creek Restoration Plan, monitoring should occur once in the spring and late summer/fall. Additional monitoring data should be identified and collected as components of a revised monitoring plan, to include assessment of erosion, scour, and/or deposition offines in the wetland, stream, and buffer areas—particularly those areas associated with the stormwater facilig outfall. Due to the recommended increase in the restoration and mitigation planting area, the monitoring plan should be revised to include additional monitoring transects. The Water Main Crossing Justification Memo should be revised for consistency with the recommended monitoring schedule, and Wetland&Creek Restoration Plan should be revised to include additional transects and collection of erosion and sediment deposition data. Sewell response: As shown below and on the plan, these elements have been incorporated in the attached "Plat of Pipers Bluff—Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting,Inc.The additional planting areas shown on the Supplemental plan will be monitored for coverage using the line-intercept technique as was used on The Watershed Plan. These transects will be field located during the first monitoring.The elements of the Water Main Crossing Justification Memo have been incorporated into the revised Critical Areas Report and Supplemental Stream Study and have been revised to include the recommended monitoring schedule,line intercept transects and collection of erosion and sediment deposition data. Otak response: Comment 4 addressed. Otak Comment 5 The stormwater facility outfall is located within the stream and wetland buffer habitat, and stormwater form the outfall will discharge into the stream and its associated wetland. This has relevance to the proposed variance for the water line, because the discharge point is within the buffer for the streamside wetland as well as the beer for the stream. Higher discharge flows for longer durations than currently exist for this location have the potential to cause erosion, deliver sediment into the stream, increase flow within the stream system, and affect the proposed restoration plantings associated with the water line crossing. None of these potential impacts were evaluated in any of the Sewall documents. Recommendation:Based on a conversation with City engineering staff(Lee, Steve)during March 2014, it is our understanding that the applicant and the City are negotiating a stormwater facili0 retrofit design to address the facility failure. Although the applicant conducted analysis of the original stormwater vault using the King County Runoff Time Series Model per City of Renton Code, we recommend re-analysis of the proposed stormwater vault retrofit capacity and associated metrics(discharge duration and peak flow discharges)using an additional model such as MGS Otak Rocale Timmons, Senior Planner, City of Renton Page 6 Piper's Bluff Supplemental Independent Secondary Review—Wetland Mitigation July 22,2014 Flood or WWHZVI. An Otak engineer conducted an analysis of the original stormwater vault facility using MGS Flood, and noted that this model indicated that the flow duration performance criteria,per Washington Depanment of Ecology, were not met for the facility (see attached). Operation of the proposed retrofit stormwater facili0 and discharge quantities particularly peak flow discharges and flow frequencies—may potentially affect the plantings within the restoration and mitigation areas. In addition, we recommend reevaluation of the potential changes in functional value of the wetland and stream due to the outfall and detention of the retrofit design for the stormwater faciliO. Results should be included in the CAR and SSS as well as be considered in mitigation design. Sewell response: It is our understanding from the project engineer that there are no changes to the flow rates or durations from those previously reported.As detailed in the CAR,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream.Wetland A is a narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of the numerous stormwater facilities located south of the site.The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surficial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal,with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation.The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. In addition a dense planting of willows downslope will further disperse flows through this area. This should insure water that currently makes it way from the site to the wetland and creek continues to do so.Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff(dated January 31,2013- see table below), there is a minor increase in the flow rates off the site from pre-developed rates. This should insure the project will not dry out the wetland,and that adequate hydrology enters the wetland to maintain its viability. The proposed plantings in the area that are downslope of the outfall have been selected for their ability to withstand some surface flows as well as periodic inundation. No impacts to these plantings should occur from the functioning outflow. Otak response: Repair and retrofit of the stormwater vault facility and discharge structure has presumably addressed risks and potential impacts associated with the construction and operation of the facility, and design and analysis of the facility has apparently met City standards and requirements. The proposed monitoring plan should provide qualitative data concerning possible erosion, scour, and stream geomorphic alterations in the vicinity of the discharge structure. Comment 5 addressed. Otak 1 y} Rocale Timmons, Senior Planner, City of Renton Page 7 Piper's Bluff Supplemental Independent Secondary Review—Wetland Mitigation July 22,2014 Otak Comment 6 RMC 4-3-050.L3.b requires the applicant to conduct a supplemental stream study (SSS)if alterations to a water body and its associated bier are proposed. Per RMC 4-8-120 the SSS must include a stream assessment, analysis of alternatives, impact evaluation, and mitigation proposal. The current SSS provides limitedfrnctional analysis of the stream, and provides no itformation on alternatives or mitigation. Recommendation: The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-120 requirements, and take into consideration the stormwater facili0 retrofit design, outfall/discharge structure, proposed energy dissipation, and other relevant detail. Sewell response: A more detailed analysis of functions and alternatives and mitigation has been included in the revised CAR/SSS. The criteria in RMC 4-8-120 have been addressed in the revised CAR/SSS (see page 13).As far as the retrofit of the storm facility, the only change to the storm facility was the fact the pond is now lined to prevent water from seeping through the soil around and below the pond,which caused the failure.According to the engineer, the outfall,energy dissipation, and structure have not changed from the original approved design. Otak response: The mitigation sequencing narrative provided in the June 4 revised Pipers Bluff Supplemental Critical Areas Restoration Plan included adequate responses to project avoidance,minimization, rectification,reduction, and compensatory mitigation elements for the project for wetland,buffer, and stream resources. Per RMC 4-3-050.L.3.c.ii(e), a requirement of"equivalent or greater biological functions" for stream mitigation is required. Likewise, RMC 4-8-120D.19 requirements for Supplemental Stream Per Studies requires "identification,by characteristics and quantity, of the resources (stream, lake) and corresponding functional values found on the site". The revised June 4 Pipers Bluff Supplemental Critical Areas Restoration Plan provided additional information on stream and buffer functions for the site, and may be considered adequate in addressing these RMC requirements. We recommend that,in order to specifically address biological function and no net loss of function, the following sentences be added to the report: "Project impacts to stream and wetland are considered temporary, and proposed restoration will result in no net loss of ecological functions. Wetland and riparian plantings and removal of existing invasive species are anticipated to provide a slight improvement in local ecological functions." Otherwise, Comment 6 addressed. Otak w I Rocale Timmons,Senior Planner, City of Renton Page 8 Piper's Bluff SupplementalIndependent Secondary Review—Wetland Mitigation July 22,2014 Otak Comment 7 The Water Main Justification Memo,page 4,partf explains that the Wetland&Creek Restoration Plan meets the mitigation criteria of subsection L3c(ii). However, it does not fulfill the requirement per RMC 4-3-050-L3c, which states that the stream mitigation plan per RMC 4-8-120 requires a mitigation narrative including specific requirements. No mitigation narrative was submitted with the Wetland&Creek Restoration Plan and therefore the water main is not fully justified. Recommendation: A mitigation narrative per the requirements in RMC 4-8-120 should he submitted with the revised mitigation plan noted in Comment 2. Sewell response: The criteria in RMC 4-8-120 have been addressed in the attached Mitigation Narrative Document dated June 4,2014. Otak response: Comment 7 addressed. See Otak response to Comment 6 for additional detail. Otak Comment 8 Based on field observations after the vault failure, wetland and stream protection was limited to minimal siltfencing at the outlet to the failed vault(Photo 5). Recommendation:Additional siltfencing andl or other temporary sediment and erosion control BMPs should be installed to protect the wetland and stream from further impactsfrom the large amount ofsediment released during the vaultfailure;and to preventfurther impacts, shouldfailure occur again. Sewell response:These silt fences/bmps have been installed. Otak response: Comment 8 addressed. Please feel free to call me at(425) 739-7975 if we can answer any questions regarding our comments and recommendations. Kevin O'Brien,Ph.D. Senior Ecologist 425) 739-7975 (Direct Line) Otak,Inc. 425) 822-4446 (Office) 10230 NE Points Dr.,Suite 400 425) 827-9577 (Fax) Kirkland,WA 98033 Otak DeniycLaw Cl Of r ti . -' nr t7a - TCr Community&Economic Development Department, :• June 12; 2014 C.E."Chip"Vincent,Administrator , Kevin O'Brien OTAK Inc. 10230.NE Points Drive,Suite 400 Kirkland,WA 98033 SUBJECT Supplemental Independent Secondary Review—Wetland Mitigation . , Rriper''s'Bluff Critical Area Variance/LUA13-001568,VAR Dear Mr. O'Brien: The applicant for the Piper's.Bluff Critical Area Variance ha'ssubmitted a Revised Critical Area'• -' Report/Supplemental Stream Study,Mitigation Narrative;and Supplemental.Restoration Plan in, , ' ' . response to your Technical Memorandum (dated April 9, 2014): We•would like Otak Inc.to - . conduct a:supplemental review of the revised reports prepared by Sewall Wetland Consulting dated June 4,:2014); _ As a reminder the:following concerns were raised by neighboring property owners and we would like the scope of your independent supplemental review to also:' ' - Evaluate demonstration o.fcompliance:with.Renton.Municipal Code.Critical Area Regulations(RMC 4-3,-050); Evaluate the effectiveness of proposed mitigating`measures for impacts,and Provide alternative mitigation measures for proposed impacts as necessary:-• . - ' - As this;review would be paid for by the applicant please forward an-estimate and scope of work , • . to my attention,prior to performing your'revieW. All subsequent comments can be forwarded to My attention in addition to.the applicant, .. Feel.free to contact me at(425)430-7219 if you•have any questions or if you Would like to set up,. a time for a'site-Visit. .Thank you. Sincerely, if t ljirl'ty Ro ale Timmons ... Senior Planner cc_ Owners) Applicant Attachments Renton City'Hall • 1055 South;GradyWay • Renton,Washington 98057 • rentonwa.gov AlisonC To: RobR; David Wathen Subject: RE: On Hold Notice II Secondary Review Response From: RobR Sent: Thursday, June 05, 2014 3:01 PM To: 'Rocale Timmons' Cc: Jan Illian; Steve Lee; Aron Golden; Ed Sewall (esewall@sewallwc.com); "Peter' (Peter@westpacdevelopment.com)' Subject: RE: On Hold Notice II Secondary Review Response Hello Rocale, Please accept the following attachments as response to the Pipers Bluff Critical Area secondary review dated April 9, 2014. 1. Response letter to the OTAK comments. 2. Revised CAR/SSS report. 3. Mitigation Narrative. 4. Supplemental Restoration Plan—Sewall Wetland Consulting. 5. Mitigation Plan from The Watershed Company. Please contact me with questions. We will deliver,to your office,5 hard copies of these attachments tomorrow morning. Thank you, Rob Risinger From: Rocale Timmons [mailto:RTimmons@Rentonwa.gov] Sent: Thursday, May 22, 2014 12:02 PM To: "Peter' (Peter(awestpacdevelopment.com)' Cc: RobR; Jan Illian; Steve Lee; Aron Golden Subject: RE: On Hold Notice II Secondary Review Response Hello Peter, I just wanted to followup on this and make sure that your mitigation efforts did not get lost in all of the other discussions about Piper's Bluff. Please make sure you review the attachments and let me know if you have any questions. If'these items are not resolved you are going to be held up for recording. Thank you. Rocale Timmons From: Rocale Timmons CITY OF RENTON Sent: Thursday, April 10, 2014 9:40 AM RECEIVED To: 'Peter' (Peter@westpacdevelopment.com) 6 2014Cc: RobR(RobR@connerhomes.com); Jan Illian; Steve Lee JUN Subject: On Hold Notice II Secondary Review Response BUILDING DIVISION Hello Peter, Please see the attached letter and memo going out in snail mail today to all parties of record. Feel free to contact me should you have any questions. Rocale Timmons City of Renton-Current Planning Senior Planner 1055 South Grady Way Renton,WA 98057 Tel: (425)430-7219 Fax: (425)430-7300 rtimmons@rentonwa.gov 2 t Sewall Wetlandma,,,,I„. Consulting, Inc. PO Box 880 Phone 253-859-0515 Fall City,WA 98024 June 4, 2014 Rob Risinger Conner Homes 846 108th Ave NE Bellevue, WA 98004 Re: Piper's Bluff—Technical Memorandum Response SWC Job#12-135 City of Renton File LUA13-001568 Dear Rob, This letter is in response to the April, 9, 2014 Technical memorandum by OTAK regarding the Pipers Bluff Project. The following recommendations were identified by OTAK; Comment 1 No wetlandflags were present on the date of our site visit, and wetland delineation confirmation was notpossible given construction activities and site disturbance that had already occurred. However, using the plan setfrom the Wetland and Stream Restoration Plan, along with field observations, we do not believe inaccuracy of the wetland delineation to be of concern. We also agree that the wetland meets the criteria for a Category 2 wetland under RMC 4-3-050(M), and the stream appears to be a Class 4 (non-salmonid bearing, intermittent hydrologic regime)system per RMC 4-3-050(L). Recommendation:None No response was necessary to this comment Comment 2 Sometime between Otak's initial and second site visits, the vault facility failed, subsequently releasing substantial amounts offine sediment from the stormwater vault into the wetland and stream system and their buffers, along with scour and downcutting at the vault discharge point(see Photos 1 and 2). Following the vault facility failure,fine sediment was noted in the stream and surrounding riparian habitat(Photo 3), and substantial infilling of aQiNviat u ON pond by fine sediment was reported by a nearby landowner(Nonis, Jim) during t J r¢fj/ l() site visit(Photo 4). Such adverse impacts to the wetland, stream, and buffer wary t compensatory mitigation.J"J! 0 6 2014 BUILDING DIVISION Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Paget of 7 Recommendation: We recommend that the applicant provide a compensatory mitigation plan for the above impacts associated with the vault failure. The compensatory mitigation plan should be designed to improve the entire wetland/stream/buffer corridor on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan used for construction impacts to critical areas as well as stream impacts resultingfrom the water line installation. All of the requested elements have been incorporated in the attached"Plat ofPipers Bluff Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Specifically; The compensatory mitigation plan should be designed to improve the entire wetland/stream/buffer corridor on the site. Response: The"Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland, streams and buffers as well as plantings throughout the impacted areas as well as tree underplanting within the undisturbed buffer areas. These mitigation measures should not only enhance,but improve the function of the buffer on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. Response: The proposed plantings as shown on the "Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting are beyond the previously identified planting corridor and will provide the features and functions identified above. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers Response: The "Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting includes removal of all weedy/invasive species in the sites wetland, streams and buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan usedfor construction impacts to critical areas as well as stream impacts resulting from the water line installation. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 3 of 7 Response: The Sewall Wetland Consulting Plan matches the goals and objectives of the elements of The Watershed Plan, however it is supplemental to The Watershed Plan and should be implemented in conjunction with that plan as they both cover different parts of the site schematically. Comment 3 The area impacted by vegetation removal in the wetland, stream, and associated baer is larger than depicted on the Wetland&Creek Restoration Plan. Site visits confirmed that the area from which vegetation bas been removed is larger than the 15 foot-wide replanting corridor depicted in the Restoration Plan. Recommendation: The restoration planting plan should be revised to present a larger footprint for restoration. The revised plan should include restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. Due to the proximity of the stormwater vault outfall and the risk of stormwater scouring out or otherwise imposing disturbances to the proposed restoration plantings as well as the nearby vegetation, we recommend that the existing monitoring plan outlined in the Wetland& Creek Restoration Plan would also be applied to this area. Response: These elements have been incorporated in the attached"Plat of Pipers Bluff— Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Plantings in the general area of disturbance have been added, as well as plantings to stabilize the flowpath from the stormwater outflow. The existing monitoring plan has been added to match that outlined in the previous mitigation plan. Comment 4 According to the Water Main Crossing Justification Memo, the restored wetland, stream, and buffer will be monitored four times in Year 1, and once ayear forfive years as required by Code. However, the Wetland& Creek Restoration Plan states monitoring should take place twice annuallyforfiveyears. Recommendation:It is our recommendation that the latter monitoring schedule (monitoring twice per year for five years) be followed due to the possible impact from the proposed outfall and the existing impact from the facility failure. Per the Wetland& Creek Restoration Plan, monitoring should occur once in the spring and late summer/fall. Additional monitoring data should be identified and collected as components of a revised monitoring plan, to include assessment of erosion, scour, and/or deposition offines in the wetland, stream, and buffer areas particularly those areas associated with the stormwater facility outfall. Due to the recommended increase in the restoration and mitigation planting area, the monitoring plan should be revised to include additional monitoring transects. The Water Main Crossing Justification Memo should be revisedfor consistency with the recommended monitoring schedule, and Wetland& Creek Restoration Plan should be revised to include additional transects and collection of erosion and sediment deposition data. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 4 of 7 Response: As shown below and on the plan, these elements have been incorporated in the attached"Plat of Pipers Bluff—Supplemental Critical Areas Restoration Plan"dated 5/19/14 by Sewall Wetland Consulting, Inc. TABLE 371:1.GOALS,OBJECTIVES, MONITORING.SCHEDULE,&PERFORMANCESTANDARDS GOAL OBJECTIVE: 'SCHEDULE ,PERFORMANCESTANDARDS TO SUCCLSSAMYE.RArs1,K11A TOIFISTAII AND SIWTI'STU(LY QARUfERLYDURING • for JRVIYAtDYLVSTAU rOPlANTSTCKR%IRRTNCFIRST OCTISENATIVE PIAYTCOMMUNITY LSTAALIS}t)22 NATIVE PtANTINGS NM I GROWING SEASON OEM I),1N6STANDARD CAN UEMET W1TFUN RESTDRED CRITICAL ARIA ,W11HIN'1,153 SF.Of HESTGv1tD• TROUGH PLANt ESEAUtISM+IENT OA AtFLAtil ING,AS ATIOCR MCA AREACUfFERS; WE10A0aAADWLTLANOWS)0.A11 APRIL[7ZM YAJID' NECESSARY,TO'AC1lI EVE IHERE0UIRED PLANT NiiMIER5. BUFFER,.AUG VAT OR • 85%SURYVAi6Y,IIISTALIEDPtN1•Si.COCATTER THE IHIRO_ SLPTLNUCR OF YEARS GRO.!AtIGStMSN7,Y I1!EAR 3),• • '. 2,3;{15 • EO AVE RAr„FCOVIFAGEGYNAnycTFL ES ANDSPRIOS AFTER THE THIRD GROWAG SEASOVV(YiAR 3)'_ 430S AVERAGE 40ViRAfiC ev FIAwF TRf FS AND S!{i,URS,• AFTER THE FIFTH GROW .UOH Sr; UP To iOnOF Tit FSATrytWOODY Pustrtsotat.C.Oi'L RO MAY BE COMPRISED OF GESIRA?'E NATIVE COLOIlinVG SPECIES. SPECIS DIVERS,*ESTABLISHMENT OF 1 NAIiV=TREE SPECIE.'MV A MINITAUM or 4 WIND PECIEs AITER AHS. I-FTII GROWING SEASON VW SI 10EUAIINOKIOUS WELD S MIS, TOPHCIIR.Ert.•tLINITIAL OLIAATERLY DURING • IESS THAN IOKCOYIIiAGIRY AIL(VS8'A','U',A{VU'C'. WITHIN WITHIN RESTORZO CRITICAL ,COYTIN)C Or NDIIIOUS WEED ' Y'•JiR C TIOxiOU5.WEEU4(it I.UDING HOW-AtGUMTTD'D" laO''CAREAANDCiIIHCALAREADUFFERSSPLLZLSANDILN10MINI1/Tfl. 11DAIDUSYrEDS)IO EMU IFDON THE LATEST CtwCOUNTYTHEGENERALPRESENCEOf'blink OR O NOxiOUSWFOLKT: ND%IOUS WEED PECIES. AUGUST OR SEPTEMLIER OF YEARS' 2.3.4,ASZ1.4;85 The additional planting areas shown on the Supplemental plan will be monitored for coverage using the line-intercept technique as was used on The Watershed Plan. These transects will be field located during the first monitoring. The elements of the Water Main Crossing Justification Memo have been incorporated into the revised Critical Areas Report and Supplemental Stream Study and have been revised to include the recommended monitoring schedule, line intercept transects and collection of erosion and sediment deposition data. Comment 5 The stormwaterfaciliy outfall is located within the stream and wetland buffer habitat, and stormwater form the oufall will discharge into the stream and its associated wetland. This has relevance to the proposed variance for the water line, because the discharge point is within the bifferfor the streamside wetland as well as the brfferfor the stream. Higher discharge flows for longer durations than currently exist for this location have the potential to cause erosion, deliver sediment into the stream, increaseflow within the stream system, and affect the proposed restoration plantings associated with the water line crossing.None of these potential impacts were evaluated in any of the Sewall documents. Recommendation:Based on a conversation with Ciy engineering staff(Lee, Steve)during March 2014, it is our understanding that the applicant and the Ciy are negotiating a stormwaterfaciliy retrofit design to address the facility failure.Although the applicant conducted analysis ofthe original stormwater vault using the King County Runoff Time Series Model per City of Renton Code, we recommend re-analysis of the proposed stormwater vault retrofit capaciy and associated metrics(discharge duration andpeak flow discharges)using an additional model such as MGS Flood or IV1VHM.An Otak engineer conducted an analysis of the original stormwater vault faciliy using MGS Flood, and noted that this model indicated that the flow duration performance criteria,per Piper's Bluff/#12-135 Sewall Wetland Consulting Inc. June 4, 2014 Page 5 of 7 Washington Department of Ecology, were not met for the facili0(see attached). Operation of the proposed retrofit stormwater facility and discharge quantities particularly peak flow discharges and flowfrequencies—may potentially effect the plantings within the restoration and mitigation areas. In addition, we recommend reevaluation of the potential changes in functional value of the wetland and stream due to the outfall and detention of the retrofit design for the stormwater facility. Results should be included in the CAR and SSS as well as be considered in mitigation design. Response: It is our understanding from the project engineer that there are no changes to the flow rates or durations from those previously reported. As detailed in the CAR,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream. Wetland A is a narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of the numerous stormwater facilities located south of the site. The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surficial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal, with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation. The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. In addition a dense planting of willows downslope will further disperse flows through this area. This should insure water that currently makes it way from the site to the wetland and creek continues to do so. Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff(dated January 31, 2013-see table below),there is a minor increase in the flow rates off the site from pre-developed rates. This should insure the project will not dry out the wetland, and that adequate hydrology enters the wetland to maintain its viability. DESIGN INFORMATION INDIVIDUAL BASIN Water Quality design flow Water Quality treated,volume Drainage basins) Orisitearea(infcudes'frontage)• 4.98 Offsite area 0 Type of Storage Facility Pond Live Storage.Volume.(rocuired) 69,132 Predev Runoff Rate 2-year 0.139 10-year 0.241 100-year 0.402 Developed Runoff Rate 2-year 0.928 10-year 1.12 100=year 1.88. Type Of Restrictor Frop•Tee Size of orifice/restriction No.1 .0.88 No.2• 1.50• No.3 1.40 Above:Table from DR Strong Drainage Report, Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 6of7 The proposed plantings in the area that are downslope of the outfall have been selected for their ability to withstand some surface flows as well as periodic inundation. No impacts to these plantings should occur from the functioning outflow. Comment 6 RMC 4-3-050.L.3.b requires the applicant to conduct a supplemental stream study(SSS) if alterations to a water body and its associated buffer are proposed. Per RMC 4-8-20 the SSS must include a stream assessment, analysis of alternatives, impact evaluation, and mitigation proposal. The current SSS provides limited functional analysis of the stream, and provides no information on alternatives or mitigation. Recommendation: The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-20 requirements, and take into consideration the stormwater facility retrofit design, outfall/discharge structure,proposed energy dissipation, and other relevant detail. Response: A more detailed analysis of functions and alternatives and mitigation has been included in the revised CAR/SSS. Recommendation: The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-20 requirements, and take into consideration the stormwater facility retrofit design, outfall/discharge structure,proposed energy dissipation, and other relevant detail. Response: The criteria in RMC 4-8-120 have been addressed in the revised CAR/SSS (see page 13). As far as the retrofit of the storm facility, the only change to the storm facility was the fact the pond is now lined to prevent water from seeping through the soil around and below the pond,which caused the failure. According to the engineer,the outfall, energy dissipation, and structure have not changed from the original approved design. Comment 7 The Water Main Justification Memo,page 4,partf, explains that the Wetland&Creek Restoration Plan meets the mitigation criteria of subsection L3c(ii). However, it does notfrlfill the requirement per RMC 4 3-050- L3c, which states that the stream mitigation plan per RMC 4-8-120 requires a mitigation narrative including specific requirements.No mitigation narrative was submitted with the Wetland&Creek Restoration Plan and therefore the water main is not fully justified. Recommendation:A mitigation narrative per the requirements in RMC 4-8-120 should be submitted with the revised mitigation plan noted in Comment 2. Response: The criteria in RMC 4-8-120 have been addressed in the attached Mitigation Narrative Document dated June 4, 2014. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 7of7 Comment 8 Based on field observations Or the vaultfailure, wetland and stream protection was limited to minimal silt fencing at the outlet to thefailed vault(Photo 5). Recommendation:Additional silt fencing and/or other temporary sediment and erosion control BMPs should be installed to protect the wetland and stream from further impacts from the large amount of sediment released during the vault failure; and to prevent further impacts, shouldfailure occur again. Response: These silt fences/bmps have been installed. If you have any questions or need any additional information please contact me at (253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetland Ecologist PWS #212 Attached: •Revised Critical Areas/Supplemental Stream Study 6-4-14, Sewall Wetland Consulting, Inc. Supplemental Restoration Plan—Sewall Wetland Consulting,Inc. Mitigation Narrative 6-4-14, Sewall Wetland Consulting, Inc. Pipers Bluff Mitigation Plan, The Watershed Company r SewallIluuuuuiunu,,,,,,,,Wetland Consulting, Inc. PO Box 880 Phone:253-859-0515 Fall City,WA 98024 June 4, 2014 Rob Risinger Conner Homes 846 108th Ave Ne, Bellevue, WA 98004 Re: Piper's Bluff—Mitigation, Monitoring and Maintenance Narrative SWC Job#12-135 City of Renton File LUA13-001568 Mitigation Narrative The proposed mitigation consists of two mitigation plans, one for the existing water line crossing (Pipers Bluff-Wetland& Creek Restoration Plan"by The Watershed Company, and one for the disturbed areas of the wetland, stream and buffer from the storm pond failure (see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). The Watershed Mitigation plan covers 1,506sf of buffer, wetland and stream restoration, and the Sewall Wetland Consulting Plan covers 3,159sf of wetland, stream and buffer mitigation as well as supplemental tree under planting in the remaining buffer area. The purpose of these two plants is to restore the areas that have been disturbed by the installation of the wetland line,as well as the area of disturbance from the vault failure. Performance Standards All of the proposed mitigation will be inspected 4 times in Year 1 and twice a Year in Years 2-5. As depicted on the Pipers Bluff-Wetland& Creek Restoration Plan, the following Performance Standards will be used;CITY OF RENTON RECEIVED JUN 0 6 2014 BUILDING DIVISION Piper's Bluff/#12-135 Sewall Wetland Consulting Inc. June 4, 2014 Page 2 of 6 Performance Standards The standards listed below shalt be used to'judge the success of the Plan oven time. I. Plant Sul Cover a Achieve 100%0urvival ofinstalled-vegetatton by ttie end of Year I. Ti his standard can be rent through plant establlshinent'or throtighreptanting as necessary to achieve the required numbers: b,:Achieve at least 6096'cover of native trees°and shrubs by the end of Year 3. G Achieve at least8096 cover of native trees and shrubs by.the end of.Year 5,- Species diversity:-Establlih at least I.native.tree species,and:5.native shrub species,and one native low-cover:spedes byYear 5. Volunteer.,species may,count towards this standard. 3,,Invasive cover No more than 1090.cover ay'invasive'weed spedesIn the.mitigation enhancement areas in any monttorhig Yam. General summary..of the spring 2:Counts of live anddead.trees-and.shrubs by species in the planted'areas In Year I:Significanrdie-off should be reported by speclesand:quantity,in any.rnoonttoringyear, 3.Estimate of native sapling tree and shrub cover using the line-intercept method along established transects In the.planted area. 4.Estimate of invasive cover.using the line-intercept method along established tianse_cts in the planted,area. S:,Photographic documentation from,fined,reference points:In each planting area. b.Intrusions:reasInto'the planting.ar:eas,.yandallsm:or_other.actions.that Impair the Intended funcdocts ofthe planted a .- 7.Recommt ndnilons:for`maintenance'or repair'of airy portion'of the jnhigatlon'area, As depicted on the Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan the following Performance Standards will be used; TABLE 3-1:GOALS;OBJECTIVES,,,MONITORING SCHEDULE,.&PERFORMANCE STANDARDS GOAL „ OFIN;TIVE,'' SCHEDULE.I :RERFORMANC' :STANDARDS: . TO SOCCCTSiOTLYTMTAR11W TOs4 to 4CeNOStkcissnrux-, QuM1ffLYO4L'.G • SCtsitY:VA 'N'i/STfiiiTP lAinslrXX iTCRTICFIRR OTNS(NATNi PIANICOMMUNITY .ESTABUIiillNATFYEPLA.MT1UIG3 Y?AGI G*mum SOUTH IYEAR:PI6sTAt9A n CAN St NET WITllliltfi1OiTO.CMTIGYAtfA' WI1HIFI2.150SFOF33STOITEO AM- THROUGH eusiIT.CNT17AimPIWRIMG;A5: AliommmiIcA 'Menpurr In 1VEILAIJOFNOV/ETIAIIOI5I32A%1 APRROg MAY AHD- NECESSARY,TOAO^_EVE THE HEOUIREUFUUITNub3EFS.' BUIFf.9._ AJGUSTOA • ,5%511 WNA!BY/STALLED PULMT STOCK AFTER HET!RRO 3E11,MAUROr vrms -Giowiu05tASON.IYr0)), Ant 4.S 5' • ..16174AV(7.Gt COW:RAGE my NAITVE TRLISANDPIRUIIS AFTERT5IE THIRD GRON'¢iG 3IA504 MAR 31'• RC4SAVIFAIIFCOW AGF9fNATIVETRCESANI 5KHUBS AFTERT!IC gT?IIGFQW8 -SCAsoNt!C7L7 II', UP TO 10Y.OF THE NAME moor PLANT SPCCO'COVTTTAGE MAY 2!COMPRISZOO:DESIRABLE r01TMVE COLO3 NG. sPEcEs. SPECt5OIVERS]Pp FSTABLISHMTTT Of L NSTIVE TREE SDECIIS AND A`t'.$MLAI Of A Sh w.B SO EOM AFTER THE FU1TIGROW93G SE Am*ow's''' ro UTARKO7000SWC(O SINGES. TO TEsev'IDE TULLINRIAG QUAFTERLYOU,C'iG• • it%THAN IC%COVERA EE III.ALL CLASS:A','R`,ardd'C' WITHIN WWI RTsTOYtDCBin{AL coeimp ITTOi11 TLOUSWD. YEA.5 NO IOUISWECe3IINCLLLCINGhOTI1lEGUOtTED'VANG'C': AREA ATID ISdn AK'I1UFf1Pi S!tCiL SANp T1MN lomellout NOIupiri%moil.IW41.J LLD ot1`IHt 1ATESfi ENG OOLdi 1HOENtil ,P (StUCtITCEOF APRIlORA14YAN0' NlN000SW3101LSL NpIaGUSWECOSPtCI[S: AL'GUSTOF sevror3!a OF YTARt Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 3 of 6 ANNUAL COMPLIANCE MONITORING FOLLOWING ACCEPTANCE OF THE AS-BUILT BY THE CITY OF RENTON,ANNUAL COMPLIANCE MONITORING SHALLBE..COMPLETED FOR-A PERIOD:OF FIVE(5) YEARS: ANNUAL COMPLIANCE MONITORING SHALL BE COMPLETED BY A QUALIFIED..PROFESSIONAL ANDSHALL COMPRISE A SITE INVESTIGATION AND; REPORTING,PERTHE FOLLOWING INTERVAL:- 1 *ISO DURING THE FIRST YEAR'(YEAR 1)FOLLOWING PLANT INSTALLATION;AND IN-A• PRIL OR•,MAY•AND• AUGUST OR SEPTEMBER OF TH•E-SECOND. THROUGH:FIFTH YEARS(YEAR 2.THROUGH YEAR 5)FOLLOWING INITIAL PLANT INSTALLATION: COMPLIANCE MONITORING SHALL:COMPRISE A QUANTITATIVE ASSESSMENT OF CONDITIONS.WITHIN.EACH PLANTING AREA FOR PURPOSES OF EVALUATING CURRENT YEAR'S PERFORMANCE STANDARDS. AT THE TIME OF EACH• MONITORING ASSESSMENT,THE FOLLOWING INFORMATION SHALL BE COLLECTED;AND ASSESSED RELATIVE TO THE PERFORMANCE STANDARDS ESTABLISHED FOR THE PROJECT: THE.CONDITION OF INSTALLED PLANT-STOCK INCLUDING SURVIVORSHIP,.HEALTH,AND VIGOR, THE RATIONALE FOR POOR. CONDITIONS,IF PRESENT,-.WILL BE DETERMINED:- THE SPECIES COMPOSITION OF'AND AREAL COVERAGE BY' NATIVE WOODY PLANT SPECIES:(TREES.AND SHRUBS)'AND NATIVE EMERGENT PLANT SPECIES(WHERE PLANTED): THE SPECIESCOMPOSITION OFAND:AREAL COVERAGE PROVIDED BY NOXIOUS:WEED SPECIES: COMPLIANCE MONITORING METHODOLOGY:, A DIRECT'COUNT INVENTORY AND ASSESSMENTOF ALL INSTALLED_ PLANT STOCKSHALL-BE USED TO'EVALUATE PLANT CONDITIONS: SPECIES:COMPOSITION AND AREAL COVERAGE SHALL BE ASSESSED. USING.THE COMPLIANCE MONITORING PLOTS OR TRANSECTS,` ESTABLISHED DURING THE AS-BUILT:. PHOTOGRAPHS'OF EACH PLANTINGAREA SHALL BE TAKEN FROM THE PERMANENT PHOTO POINTS ESTABLISHED DURING'THEAS-BUILT: DURING EACH COMPLIANCE MONITORING ASSESSMENT,EACH,PLANTING AREA WILL BE ASSESSED FOR EVIDENCE OF EROSION,SCOUR,AND/OR DEPOSITION.O.F FINES-PARTICULARLY IN THOSE AREAS DOWNSLOPE/DOWNSTREAM OFTHE STORMWATER OUTFALL. WHERE NECESSARY,RECOMMENDATIONS FOR, Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 4 of 6 CORRECTIVE ACTIONS TO STABILIZE SOILS/SLOPES WILL BE PROVIDED IN THE RELATED MONITORING REPORT. THE RESULTS OF EACH COMPLIANCE MONITORING ASSESSMENT SHALL BE SUMMARIZED IN A WRITTEN REPORT AND SUBMITTED TO THE CITY OF RENTON NO LATER THAN NOVEMBER 30 OF THE RESPECTIVE MONITORING YEAR. CONTINGENCY PLAN SHOULD ANY COMPLIANCE MONITORING ASSESSMENT REVEAL THAT THE PERFORMANCE STANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED,THE PERMITTEE SHALL WORK WITH THE CITY OF RENTON TO DEVELOP A CONTINGENCY PLAN TO ADDRESS THE DEFICIENCY(IES). CONTINGENCY PLANS CAN INCLUDE,BUT ARE NOT LIMITED TO,THE FOLLOWING ACTIONS: 1. ADDITIONAL PLANT INSTALLATION; 2. EROSION CONTROL; 3. HERBIVORY PROTECTION; 4, MODIFICATION TO THE IRRIGATION REGIME;AND/OR 5. PLANT SUBSTITUTIONS OF TYPE,SIZE,QUANTITY,AND LOCATION. SUCH CONTINGENCY PLAN SHALL BE SUBMITTED TO THE CITY OF RENTON BY JANUARY 31 OF ANY YEAR WHEN DEFICIENCIES ARE DISCOVERED. UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON,ACTIONS SPECIFIED ON AN APPROVED CONTINGENCY PLAN MUST BE COMPLETED WITHIN 60 DAYS, IF THE FAILURE IS SUBSTANTIAL,THE CITY OF RENTON MAY EXTEND THE COMPLIANCE MONITORING PERIOD FOR THE RESTORATION WORK. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 5 of 6 MAINTENANCE PLAN THIS SECTION PROVIDES A GENERAL OVERVIEW OF THE MAINTENANCE PROGRAM NECESSARY TO ENSURE THE SUCCESS STANDARDS ESTABLISHED FOR THIS PLAN ARE ACHIEVED. NOXIOUS WEED CONTROL FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD,NOXIOUS WEED CONTROL SHALL OCCUR ON A SPOT TREATMENT BASIS WITHIN EACH PLANTING AREA. TARGET NOXIOUS WEED SPECIES SHALL INCLUDE THE FOLLOWING: ALL CLASS"A", IV,AND"C° NOXIOUS WEEDS(INCLUDING NON-REGULATED III"AND"C" NOXIOUS WEEDS)IDENTIFIED ON THE LATEST KING COUNTY NOXIOUS WEED UST. NOXIOUS WEED CONTROL WORK SHALL CONSIST OF THE CUTTING AND REMOVAL FROM THE SITE OF ALL NOXIOUS WEED SPECIES STEMS,CANES,RUNNERS,SHOOTS, SEED PODS,FRUITING BODIES,AND LEAVES PER THE FOLLOWING METHODS: 1. HAND PULLING. 2. MANUALLY CUTTING USING MACHETES,LOPPERS,AND/OR CLIPPERS. SPOT TREATMENT SHALL OCCUR MONTHLY AND/OR AT A GREATER FREQUENCY,IF NECESSARY,TO CONTROL NOXIOUS WEED SPECIES TO A MAXIMUM OFTEN(10) PERCENT OR LESS COVERAGE WITHIN EACH PLANTING AREA. DURING ALL NOXIOUS WEED CONTROL WORK,EXISTING OR PLANTING NATIVE VEGETATION SHALL BE PROTECTED FROM DAMAGE. GENERAL MAINTENANCE EACH PLANTING AREA SHALL BE MAINTAINED AT REGULAR INTERVALS DURING THE COMPLIANCE MONITORING PERIOD TO PROMOTE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANT STOCK, GENERAL MAINTENANCE SHALL INCLUDE: 1 WEEDING OF EACH PLANTING AREA. 2. RE-APPLYING BARK MULCH TO MAINTAIN A 6"MINIMUM APPLIED THICKNESS-YEAR 1 ONLY. 3. THE PRUNING OF INSTALLED PLANTS TO REMOVE DEAD WOOD AND PROMOTE VIGOROUS PLANT GROWTH AND PROPER FORM. 4. THE REPLACEMENT OF PLANTS THAT APPEAR TO BE IN DISTRESS AND/OR DISEASED. 5. THE REMOVAL OF TRASH,LITTER,AND/OR OTHER NON-DECOMPOSING DEBRIS. GENERAL MAINTENANCE WORK SHALL OCCUR MONTHLY DURING THE GROWING SEASON AND/OR AT A FREQUENCY OTHERWISE NECESSARY TO ENSURE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS GROWTH OF THE INSTALLED PLANTS AND/OR THE CO NTROL OF NOXIOUS WEEDS. Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 6 of 6 If you have any questions or need any additional information please contact me at(253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetland Ecologist PWS #212 L Z 0 zo 0 ' -- I— W cm > n > `" _C r r W C ` in THE LL ilk E` e`• J — t r.F'"." O U WATERSHED I t tJ -I1 W Z 2 COMPANY 750 Shah Sava South W _. - -. se., y SI. ra ` 4 grtlud WA 9B033 i t 1 _ R ems•"" 1: DA35.R73 / 33 sn t I I I ,pRoI yrE I Sctence & Design 1. C ` 3 -- • ` m E _ IIp Mai I •Ir . t. - f 1= v 7 l 1.1 . VICINITY MAPS PROJECT AREA V T- SHSHEEEET INDEX NN, ErK CEO,=.s• E I a Q EX651NG mPantora xN r,;-- xLL brNRUNx pop p= pS3. 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STANDARD STREAM BUFFER UNEl5•.R = O as"% STANDARD BUILDING SETBACKUNE:IS'-P rr L 1' a 1 FEn UJ 3mTEMPORARYIMPACT:424 SF V Z. y^/ C4a 11.TEMPORARYSTRFA7 IMPACT:113 SF 3 3r W H Q O r A TEMPORARY WETLAND BUFFER IMPACT:969 SF la 6 3 0 ()la 0 a zIO,,Ci MRiGATK)NARFh 15065E 1Yi O Q O Z_ Qa = SL DNITURBANQARFA MUM..*AM WARR MAN ALIGNED TO AVOID WATER MAIN PUNS THROUGH z W ZEIS&WI' CLEAllNGsnr.WPMAYTRENCH WIDTH IW LETOEX6IWG TREE ROOT TO SEM0,NNG BENEATH THE TO BE RESTORED IN PLACE TO BE RESTORED IN PLACE.THE HRERMI1M EXTENT CREEK WNW MW.S4Y. SEEO, VI FOR MORE DETAIL 7 ‘,,, d Q. R ,,, , - cf,. i ',, r- ' • : k \, , i \ CI \ Fiv,r :\ 0`,..ND j }— — —11 "O \\\l'11.Jl4 dN/\ I. . \\\. g-.Z J i Tfi Jr4s yo Y 1.yy^`• n n. OSQ_L z 0• i=/G kqJ /• l1/ fTJra ::irliL J :v/J ` I i . / r^ 1Q4 ';` y. ` a fa_ f — F-- U—J \, vi oFr o R—or .., 01: `Z.'J' , plahp `:.\.\C0. ` 0 .Oy_` .OF—W. O OI— g.66n _ off .' c0 0 0- ` OP p --\D\- • v1` °` aW \'` ;> _=obP:--DP Bi_\ x\ ! e I l I%\`\`\ ` SHEET SIZE: ti ORIGINAL PIAN6]Y H'. 1 1 T\ :,- 010 scAtEA¢DROTNGEY. P4Y.. IMM1AG\ 4 PROJECT MANAGER: HM r , ,9A., ,,'.' \I V•. \ . DESIGNED: MF A DRAFTED: MF— CHECKED: MG JOB NUMBER BIPROPOSEDIMPACTSANDMITIGATIONDI0' 2D 40. 1"MMIMMMil ii ,3a,Zo II SCALE IR- IOI-OB SHEET NUMBER a.„.m 2 OF 5 a l GRAVEL SPECIFICATIONS-CREEK MITIGATION AREA PLANT SCHEDULE-BUFFER MITIGATION AREA PLANT SCHEDULE-WETLAND MITIGATION AREA THE WATERSHED STREAMED FIN.- AL SIWLCONSGT OF WELL-GRADED ROUNDED COMPANY1.11\ ROCK INCWOINGMGFWES.CONFORMING CLOSELY TO THE FOLLOWING SIZE SOFMIFlC/COMMON NAME T1f gENTIFlC/COMMON NAME\ GRADATION sr wean: SMALL 7AEES.ALL TREE TO BEHELLTHY&WELLBPANCHED. Q SHRVBS-ALLSHRUBS TO BEHFALTHYULL F &VIGOROUS 0 ICERAINVOLUCRA I.. C/•I' uh 5% VINE MAPLE ACERC NTUM 3 LONBUIX7VANBERRY TA 8 750 Sixth Street South%to%NA 30% I150 L%mal to3Inches 30%® 35%Z IOrkland WA 98033 1 CORYLUS CORNUTA 3 RUBUS SPECTABIUS 1 3 to 51ndces 5% WESfERPl HAg1 SALMONBERRy 0 P935.B32S292 (925R27b135 O SHRUBS-ALL SHRUBS TO BE HEALTHY.FULL&%GOROUS F.atmr•ENTS-All TO BE HEN.THY&WELL ROOTED WVIw.Vldlt'lShBdCD.COm OEMLERIA CERAOFORM6 8 CARD(OBN 97 cY-0.O.C.SPA Science St Design OSOBERRY SLOUGHS Q ROSANIKAROS 10 Z t= NOOTKA ROSE 46 SNMONBERAYLLS 7 cr - 0DAUS 7jOSNOWBFAR( NHUS lB O U ® 0 SiZ PERENNIALS/GROUNDCOYER-ALL TO BEHEALTH'&VIGOROIA w J e POLYSUCHUM MUNTTUM I- LJ..ry =SWORD FERN 70 2'.CAC SPACING. U , Z Z0DISTRIBUTETHROUGHOUT 0PLU5TINGAREAINWOFNO W Z THANNTHREECLODFIVE O F IL ~ 0 FO O MORTHE SAME SPECIE a "'1 CO ATHYRNM FILDC-FEMINA J P LADY FERN 19 SEE ABOVE I JF-3COw13L;z PREPARE TOP 1111,1616 OF SORAS RESTORE STRFAMBOYI0 SWING SPEWED LN MITIGATION NOSES GUDE MID SUBSTRATE 13.I in 7 SFET SESSHEET FORGPAVEL M SPEGEICATIONS. O i 11f vVyj _ ` U d RI Z1 T Y 1//, I L- OAS O LL O Z EATING TREE ROOFS I f I /'l\`l YFloc = Y j 1 s.,i 1 OO• i / :7\` MTh-I_;1 /' '--- KAMM'MAIM ENTRE II -\•\/\• ,', IJ ' 9 \\U i-1 Li W ,W Y W PLRDNGBAf2(MULOIFROM I VVV STEMS.SEE BACKBUFFER MATONNOTEC 0:004)AIV SrW \\ •L L \\'- W G ARM 04rattrVit% 141.-1 411110,4 oll10. 44410_^,Av u. * oh,J i ® i mlt_ • a A Y- Ark 1.ONscomiccti....:414.4„z,_ice^ ` Yi \ c006, vy- or_or+— E n+ M Of OP-••. .°'\\ OP OP Cr D' 0- OR • 0P UP OP.,--OP OP,' - OT>--\OP \0 P=oP--_0OP--O W, OP W 0\. W W\ • SHEET SIZE: 1 Q yy•- 0- O P 6 OP, ORIGINAL PIN LS 27 a 34'. I tu .L SL Y v W Alt SGIEAGDROWGLY. i I' •.\ak •L\\ L PROJECT MANAGER HM t DESIGNED: MF 1 l.1-`^( s.• k W\ l. y `j DRAFTED: MF— a CHECKED: MGPROPOSEDPLANTINGANDSTREAMBEDPLAN05, 2Y JOB NUMIIE gqESHEETNUMBERl SCALE:I°=51-0° 3 OF 5 wPra-n-......t F B s PLANT INSTALLATION SPECIFICATIONS PLANTING NOTES M THE NOTE:TNFSE SPECIFICATIONS AREA LEGALLY BINDING CONTRACT I. Natve plant Installation shall occur between September 15th and December 15th during frost-fuse periods WATERSHED GENERAL NOTES for best i1O1• COMPANY 1 Re mom any and all hwaheweeds and their roots from teplanting area Spedes targeted for removal QUALITYASSURANCE Indode Himalayan blackberry.English holly,Euglish M.Scot's broomjapanesa 7maw d,Endhh turd, I. PLANTS SNAIL MEETOREXCEED THE SPECIFICATIONS OF FEDERAL SfATEAND LOCAL LAWS REIXID@1G Yellow Fag Ids and morning glory.750 5b6h Street South INSPECT ON FORP/Wr DISEASE/ND INSECT CONTROL 3. Locate all edsdng udtldeswhhinthe limit of work The contractor Is responsible for arty utility damage asa 2 PLANTS SHALL BE HF.LLTHY.HGOROUS.AND WELLFORMED.WITIsELLDEVELOPED,FIBROUS ROOT SYSTEMS FREE Parkland WA 98033 remit Otthe landscape construction.FROM DEAD BRANCHES OR ROOTS PANTS SHALL BE FREE FROM DAMAGE CAUSED BY TEMPERATURE WEEPS% UCK OR EXCFSf OF M06TURE,INSECTS,DISEASE AND MECHANICAL MINT,PLANTS IN LEAF SHALL BEV./4. Loosen any compacted sods N the ptrolg area.p4252225212 f425.1327.6136 FOWTEDAND OF GOOD WIORPLANE SHALL BE HABITUATED TO THE OUTDOOR ENVIRONMENTAL 5. Layout plant matertl per Nan for Inspection by the restoration epedallsn Plat substordolu will NOT be www.watershe.doa.com 3. T WIMI CROOKED. INTO W1.004RTPEOORRRRO0 N LLEEADE WILL BE REIECTED.W'OWYOANTS WITH allowed Withoutthe app aJ of the restoration ap[slalt2 Science & D e si n ABRASIONS OF THE BARB ORSUNSCIIDYAL BE REJECT®. 6. Install plants per pWWng de:taBs.See[Ns sheet f0 ptsNmtdedlb and lnstalhtlon ap Ifotbin 8 7. Water each plant thoroughly to remove drpodwn DEFINITIONS B. Install a4'depth,ware wood.dap tyerthrougtout entire bufferptnting area outside of OHWM mark I. MANILPUMMATERWS.PUNSSM'D PLANT MATENALS SHIN.INCLUDE ANT LIVE PLANT MATERIAL USED ON a*. THE PRO7ER.THIS INCLUDES BUT 6 NOT LIMITED TO CONTNNERGIOWN.BBB OR BARERDOT PLANTS;WE 9. Install a temporary dreg per week to e entree planted area. STAKES AND FASONFS(N'ATnFSNTUBERS•CORFq BULBS•ETC:SPRIGS,PLUGS,AND APES ponrylrtlgatlon system opabl0 of deBVe 2'olWaser al 1 CONTAINER GROWN.CONTAINERGRO N KAIS METHOSEWHOSE ROOTBAUSARE ENCLOSED INA POT OR BAG IN WHIO4 THAT PLANT FREW. The landrepresentative.Ali minas n all plant rmolbpl me41 fuel impedlw and approval bydm Owner cc SUBSTITUTIONS Owner's'representative•All punting,and waiarwddP shall be guaranteed for one year Whoring final owner I. r 6 TUE CONIRALTORS RESPONSIBILITY TO OBTAIN SPECIFIED MATERIALS INADVA E IF SPECIAL GROWING acee MARKETING OR OTHER ARRANGEMENTS MUST BE MADE IN ORDER TO SUPPLY SPECIFIED MATERIALS. 1 SUBSTRVTON OF PLANT MATERIALS NOT ONTHE PROJECT MEWLS.NOT BE PERMITTED UNLEKSAUTHOPRED INJ WRITING BY THE UNDSCAPE ARCHnECT/CONSILILTANT. PLANTING DETAILS a J L IP PROOF 0HAT ANT PUNT MATERIAL SPEWED6 NOTOBTABUBLE•A PROPOSAL WILL BE CONSIDERED FORME OF THE NEARESTEOUNALWT S ORALTDWATNESPECES•WITHCORRFSPONLING NOTES: a ADJUSTMENT OF CONTRACT PRICEMoe I.PANTING TIT SHALL NOT BE LIBMAN MIMES Z 4. SUCH PROOF WILLBE SUBSTANTIATED AND SUBMITTED INWAmNGTO THE CONSULTANT AT LEAST 30 OATS POOR THE WIDTH OF THE ROOT BALL OH. 5 O LU INSPECTIONTO STAR OF WORK UNDERII IS SECTION. 3.3.LOOSEN SLOES ANDGPRAFTTOMS OF NPLANTING PIT Lt. F. LL Z O I. PANTS SHALL BE SUBJECT TO INSPECTION AND APPROVAL WIFE CONSULTANT FORCONFORMANCE TO REMOVE FROM PVT 6g0000WP ROOT BALL BEFORE Et. g 9 m SPECIFICATIONS.ENHERATTIME OF DELIVERY ON-SITEOR AT THE GROWERSNURSFAr.APPROVAL OF PLANT INSTALLING UNTANGLE ANDSTRApOEN ORONO MATENAISATANE7E4E SHAL.NOTIPART.SUBSEQUENT NOITOF ISPECTVNAD REJECTION WRING ROOTS-PRUNE I NECESSARY.6 PANT 6 as PROGRESS OF'REWORK EXCEPTIONALLYnooroouND.W NOT PLANrAND O 1 PANTS INSPECTED ON SREAND REJECTED FORNOT MEETING SPECIFICATIONS MUST BE REMOVED DIMEOWTELT REn3RNTO NURSERY FOR AN ACCEPTABLE ALTERNATIVE 14 FROM FIE OR RED-TAGGEUAND REMOVED AS SOONAS POSSIBLE n O Z3. THE CONSULT/!T MAY ELECT TO INSPECT ELM MATERIALS ATTNE PUCE OF GROWTH.AFTERRdPECPION AND ret ACCEPTANCE CONSULTANT!'THE CONSULTA MAY REQUIRE To LANIEINSPECTEDPLANTS BE WOMAN!"RESERVED FORM:1ER. PNULDI LATEX HOLD BACK MULCH FROM LLIU SUBSTITUTION OF THESE PLWRYRnNO.LERINDMDWLS•EVEN OP1NEYME SPECIES AND S016 TRLWVSTENS Q UNACCEPrnoLE 3'MINNE.WAIElBASIN V. i , Q Z MFASII I. pU OF SHALL FN6IIGRADE 5/ OI. RMTT3SILVLCOI.IORM 000550 PEOFlED UNLESS 0ERTOOIM4005) NSNIE MADE KOIIRINEDIN05000TTRACT.W1NEIGH.AND SPREAD DIMENSIONS 0030U0D WERT°MAIN BODY OF PLANT AND NOT BRM4CH ORROOT TIP TDTIP.PANT DIMENSIONS SNAIL BE MEASURED WHEN THEIR BRUNCHES OR ROO SAREIN THORNORMAL POSITION. J 3. WHERE ARAN(£OESBE OVEN NO0IFNTDWLBELEMTANT/EMIENMSOFANDATIEAST3036OFENE I U d (,1 L:) PLANTS SHALL BEAT LWGEASTIS MEDIAN OF THE STRANGE(EXAMPLE IF THE SIZE RANGES 17TO IS.AT REMOVEDEBN6Ar.0IIJIGEPOO6IfIDBA061LL Z SUaMeITAtsIF/STSW60F PIANES MUST BF ISTALL) f - WITH NATNE SOIL FIRM UP SORMDUND PANT Q U. = Z 0. BLSPROPOSEDPLANTSOURCESZLL7 I. WITHIN 4S OATS AFTER AWARD OF THE CONDUCT.SUBMIT COMPETE UST OF RANT MATERIALS PROP3SEOTO LO7xMNNAPOGrNlQqBEPROVIDEDDEMONSTPATWGCONFORMANCEWITHTHEREQUIREMENTSSPECIFIED.INCWDE T NE NAMES AND AOGRESEE°E ILL m°WE16ANONuwBRles 0- 0 TREE&SHRUB PLANTING DETAIL I— PPDmKT CDmnCATEo Nr LLI I. PLAT MATERIALS AST.SUBMIT DOCUMENTATKm TOWr14M1TANoMTLEAST 30 CATS PRIOR T0START OF WORK 4- UNDER THIS SECTIONTNAT PUNT MATERIALS NAVE BEEN ORDERED.ARRANGE PROCEDUREFORWSPEC0ON OF 5 PLAT MIATERIAL5ITH CONSULTANT AT TIME OF SUMMON. NOTES 1 IONE COPES OF VENDORS OR GROWERS INOICE OR PAOON°SUPS FORALLPUNTS ON SITE WRING I.PLANTGROUNDCOVERAT SPECIFIED DISTANCE ON-CENTER(O.G) INSTALLATION.INVOICE OR PAOONG SLIP SHOULD LET SPECIE BE SCENTING NAME QUANTITY,AND DATE USINGTRIANGULARSPACWG,TYP. DEUVEFD(AND GENETIC ORION ITHAT INFORMATION WAS PREVIOUSLY REQUESTED). 1 LOOSEN SIDESAND BOTTOM OF PLANTING PR AND REMOVE DEBRIS DEWEAC HANDLING.BSTOPAGE 3.LOOSEN ROOTBOUNO PANS BEFORE INSTALLING 4.SOAKRTBEFOREANO AFTERIrSOAWNG PLANT NOTIFICATIONCONTRACTOR MUST NOTIFY CONSULTANT 43 HOURS OR MORE IN ADVANCE OF DELIVERIES SO THAT CONSULTANTMAYARMNDE FOR INSPECTION. 0 0 4.SPECIFIED MULCH;HOLD t i PANT MATERIALS BACK MULCH FROM STEMS I. 00000 VRTATION-DIIWNGSHPPWGPNANT39M MOMOEDTOPR00 IS CL IMATE EMPFMUS•BREAKAGE AND DRYING PPDPERVFNTUATIONMID PREVENTION OF DAIAETD EARLBRANOOSS, r AND ROOGNID6 MUST BEEASURID a. I 1 SCHEDULING AND STORAGE-PLANTS SHALL BE DEWEREDAS CLOSET°PLATING AS POSSIBLE PUNTS PI STORAGE MUST BE PROTECIFDAWINSTANY CONDmONTNAT 6 DElN AS SPECIFIEDMENTALTOTHERCONTINUEDHEALTH AMENDMENTS i WGOR I SPEC AID 3. HNDUNG-PLANT MATERIALS SHALL NOT BE HANDLED BYTNETRUMC UM.ORFOIIAGE BUTONRYBYT6 CONTAINUL BAL.BOX.OROMER PROTECTIVE STRUCTURE EXCEPT BAPEROOTPANTS SHALL BE KEPT IN'' O BUNGLES UNTIL RANTING MOWNMOWNHANDLED CAREFULLY BYTE TRUNK ORSTEM. I —P4. UBF1S-PLANES STALL HAVE DURABLE LEONELABELSSTATIIG CORRECT MCNAME SIPE TEN PERCENT OF CONTAN PUN TSNTS IN INONIDUAL POTS SHALL BE LABELED.PUNTSSUPPOED IN RUTS, fsA' RAOq ROM.BAG;OR BUNDLES SHALL HAVE ONE LABELPERCAOUP. ad O GROUNDCOVER&PERENNIAL PLANTING DETAIL QWARRANTYMS C RANTwMRA S MUST BE GUARANTIED TO BE TUETT SCGNMCNMwAD SPECIFIFD50F.AhD TO BE HEALTHY AND m p CAPABLE OFW VIGGGOROUSGP0WOLo REPUCEMFNF NOTES:MAKE SUITABLE HOLE WR3(AROCX 84R 1 P I. PLANTS NOT FOUND MEETINGALL OF THE REQUIRED COMMONS MUST BE REMOVED FROM SITE AND REPLACED I. IMMEeATELYATTHE CONSULTANTS DISCRE'DON. I a^N PLANTS NOT SURVIVING AFTER RTO BE REPLACED CONTRACTORS EXPENSE OR EQUAL.PLANTING TOOL c 1 INSTALL PLUG DIRECTLY INTO SOIL 1 PLANTMATPAL I~ ar op GENUAL I I 2 I. PIAANTS SHALL BE NURSERY GROWN IN ACCORDANCE WITH 000D HORTICULTURAL PRACTTCESUNDERCIMATIC I SHEET SIZE: CONDmON54MARTO ORMORE SEVERE TAN THOSE OF THE PROJECT VIE ONCNHEET 63YKN. 1 1 FONTS SHALL BETRUE TO SPECS AND VARIETYORSUBtPECIES.NO CATNAPS OR NAMED VANE-MSIWL BE J WHEN INSTALLED IN LARGE GROUPINGS. aGNAL M0000.2.43 !j QUANTUM USED On0002SPEOFJmASSUCH V// INSTALL USING TRIANGUWiSPACNG PROJECT MANAGER FP1 f SEE PANT LIST ONACCOMPANYING PLANS AMENDED D PLAN ESIGNE MF I ROOT TREATMENT NATIVE SOIL CHECKED: MGI. CONTAINER GROWN PUNTS(INCUDES PLUGS):PUNT ROOT EMUS MUST HOLD TOGETHERWHEN THE PLANTS REMOVED FROM THE POT.MEET THAT MALL AMOUNT OP LOOSE ova MAY BE ON TNETOP OPINE ROOMY. 24'ON-CENTER • JOB NUMBER I 2 PUNTS MUST NOT BEROOT-BOUND.THERE MUST BENOm1OJNO ROOTS PRESENT Pi ANY PLANT INSPECTED.t 1 3. ROOrBAUSTHATHAVEMO®OR BROKENV/II AUNREMOVEDFROMENECONrAINERDREREJETTED.130-r720 L OEMERGENT PLANTING DETAIL SHEET NUMBER i NT5 ecmoidA-TA.w,iw.4dmr 4 OF 5 a I 22 C$C ; 5' F o p - E ittiHR C . . . . liF $gE 'ai SSS. ig$ Aga 1111111' a; g - 1 '$'gIr q$ l' fg -0.0 q p i', w3 1111!likSS@ Q[ sz 5 a08. E ga. l 3ggagg a§ g. a 10 74 1k a it 3 ism £ i$ i ll g 3 Iill s l e s xili R_ds o, 9' M ii $14" 1-0 ig go- g ihli igi! w 3 sgo ygg5$ 11:11111 liii!pgj'J IIIWI 4 g "3 g ; agilIQ I 111!!Iii Ia III8asa g Fas- al g 0 g 5 9tooa ,II "ems gC a N — 3 a N i., N _ S •W N' li R P pp.,- a, N, dQ ] 1 I. jjiqi'jjtjji I ii'rii'i'ri 'IIMI' 1t1Ii • 'VIg l'k"'"il -1091i 9%4 i 1' Plilltill la b• a tifiliEs 4,.4A1I!tiiI' IIIiIII hil1I'llIt tra jii I1 _1 a P11 a 'iii! Ij: iP ' iII 'a 447. a 2.E p gg$ } B i 8 3 I 3 3 gg g 2 3 g g y S 0819$ 1 T6" Cg". 8 anyG3 1 j i ,ri 4 8. 9 119 P A l $ t iROK' S 3 Fgill kg i I 1 B I N —Wa^ o iii9;r F 30 4 gMp °yi$ S 3 tiIIitIIllH i 1a1 ii$ thhhIi1iii!G 1111111!IIUII:I !i 1 0IIS4! iiiIiI I a I Iau a a s s I• g 4 i 1 I i m i 0 0 9 O SUBMITTALS&REVISIONS v VI E PIPER'S BLUFF 2 m Lt` p 5+9. DATE DESOUVrOH a c 3 O WETLAND&CREEK RESTORATION PLAN i le rj Lila w q PREPARED FOR WESTPAC DEVELOPMENT,LLC r i n -a OPQ O 141 P^ ftT a=s ? 1 166 HOQUTAM AVE NE,RENTON WA o s Pi L".° I"""_ KING COUNTY,WA 98006 3 i1.4 W 0 tt 1' 1 1 I'1, ,. 1'• ' Sewall Wetland Consulting, Inc. 27641 Covington Way SE#2 Phone:253-859-0515 Covington WA 98042 Fax:253-852- 732 June 4,2014 Rob Risinger Conner Homes 846 108th Ave NE Bellevue, WA 98004 RE: Pipers Bluff Plat—Revised City of Renton Critical Areas Report Supplemental Stream Study SWC Job#12-135 1.0 INTRODUCTION This report describes jurisdictional wetlands and streams on the 5 acre proposed Pipers Bluff Plat, located on the east side of Hoquiam Avenue NE in the City of Renton, Washington(the"site"). Specifically,the site consists of a rectangular shaped group of four(4) abutting parcels in a portion of the NE 1/4 of Section 10,Township 23 North, Range 5 East of the Willamette Meridian in King County, Washington. I h CcgY,Or S r' nlt NE 23rd St NE 23,d St 1 V I m at 1 tom NE 201tt PI NE 20th St m NE 20tl1 S1 w . NE talh St SE tI}Iln St z t IGtb SI 4 N.el} 3'lutm.h SE 1071h St n c` NE IN; ..4. I w, NE 1ith Et SE 107th Pi m NE 171h St y o NE 161h St N 5t/'A°t ® 2 9r-10 Renton Issi1t1 S Z zm 1 Y w' 5 r7 obm-t h isssN ksSi1set Ra,v m3 i NE 121h St iE 12th St NE 1211151 rn SE 112th St g SITE SE 1120,3 is i SE 113th St s NE 11UtCtS NE11IhSI CITY OFRENTON D m z m HMI NE11thSt 5 410EIVED NE tan PI ` 4. HAZEN HIGH NE loch Pt NE SCHOOL NM 0 6 2014NE.10th St > m , NE 101h St NE 1Cth St 4 E1 3 S t 1 n m m Vicinity Map m BUI'ht)1NG DIVISION Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 2 The site consists of four Parcels including#1023059002,#9367, #9312 &#9144. Single family homes are present on two of the parcels along Hoquiam Avenue, and the remaining property besides the associated lawns and landscaping is undeveloped forested area. The site is proposed to be subdivided into 28 single-family residential Lots with associated roads, and infrastructure. 2.0 METHODOLOGY Ed Sewall of Sewall Wetland Consulting, Inc. inspected the site on June 6, 2012,as well as on April 28, and May 9, 2014. The site was reviewed using methodology described in the Washington State Wetlands Identification Manual(WADOE, March 1997). This is the methodology currently recognized by the City of Renton and the State of Washington for wetland determinations and delineations. The site was also inspected using the methodology described in the Corps of Engineers Wetlands Delineation Manual Environmental Laboratory, 1987), and the Western Mountains, Valleys and Coast region Supplement(Version 2.0) dated June 24,2010, as required by the US Army Corps of Engineers. Soil colors were identified using the 1990 Edited and Revised Edition of the Munsell Soil Color Charts(Kollmorgen Instruments Corp. 1990). The Washington State Wetlands Identification and Delineation Manual and the Corps of Engineers Wetlands Delineation Manual/Regional Supplement all require the use of the three-parameter approach in identifying and delineating wetlands. A wetland should support a predominance of hydrophytic vegetation, have hydric soils and display wetland hydrology. To be considered hydrophytic vegetation, over 50% of the dominant species in an area must have an indicator status of facultative (FAC), facultative wetland FACW), or obligate wetland(OBL), according to the National List of Plant Species That Occur in Wetlands:Northwest(Region 9) (Reed, 1988). A hydric soil is "a soil that is saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part". Anaerobic conditions are indicated in the field by soils with low chromas(2 or less), as determined by using the Munsell Soil Color Charts; iron oxide mottles; hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5% or greater of the growing season. Areas that contain indicators of wetland hydrology between 5%-12.5% of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of soil inundation, saturation, oxidized rhizospheres,water marks on trees or other fixed objects, drift lines, etc. Under normal circumstances, indicators of all three parameters will be present in wetland areas. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 3 Following delineation of the wetland and stream on the site,the flags were surveyed by D.R. Strong Consulting Engineers (see attached survey). The April 28, and May 9, 2014, site visits were conducted to confirm the location of impacted wetland, stream and buffer areas as well as determine what and where compensatory mitigation measures should occur from this impact. 3.0 OBSERVATIONS 3.1 Existing Site Documentation Prior to visiting the site a review of several natural resource inventory maps was conducted. Resources reviewed included the NRCS Soil Survey,National Wetlands Inventory, and the City of Renton's Water Class map. 3.1.1 Soil Survey According to the Soil Survey, King County Area,Washington(Snyder et al 1973),the entire site is mapped as containing Alderwood gravelly loam soils(Map Units AgC & AgD ). Alderwood soils are moderately-well drained soils formed in glacial till under conifers. Alderwood soils are not listed as a "hdric" soil according to the publication Hydric Soils of the United States(USDA NTCHS Pub No.1491, 1991). However, Alderwood soils can contain small inclusions of poorly drained hyric soils such Norma, Bellingham, Seattle, Tukwila and Shalcar soil series. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 4 ram. 114 1044101. v. i . iii- i 4 . nrI ffr A srti k .- r. A AP s 0" Soil Map of the site 3.1.2 National Wetlands Inventory According to the National Wetlands Inventory there are no wetlands or streams located on or near the site. a , t". ''• i p.3ts r`S 1' 1 ,` `, 4: t i• i 'j•+ t,, • L #A• - • yfiof skoi 's N •'1 .t',: ':,'• A i 1 , r tt .t tt i c 4.•r . ' s t i''1 i•+ .. r. j National Wetlands Inventory map Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 5 3.1.4 City of Renton Water Class Map According to the City of Renton Draft Water Class Map,the upper reach of Honey Creek is located on the northeast corner of the site. This stream is mapped as a Class 4 stream by the City (brown stream shading). 1 R.t=t l gi mdmiralil' r' 1,1 tc ' 1 g.,' iAli... V ''w w 7CN 2 'l1!, Y ME IMb st a p 1t1 Ottf 1K i,pi s4 W yli , w1111116 o p h, j 4 O.') IN 91 iii a it sax i JOr - li pq 11 tl,yl 14 LA Oft 61 e ,. 1.111A IN. L bl ai. n, st cE 9+h el Eahc1 raeo 11 8 8 Above: City ofRenton Water Type Map 3.2 Field Observations 3.2.1 Uplands The site is located near the crest of a hill with the property sloping down to the east towards Honey Creek. As previously mentioned, several structures as well as associated lawn, driveway and landscaped area is located along the west side of the site. The area along the west side of the site includes immature red alder,big-leaf maple,old apple trees, cottonwood, dense thickets of blackberry, hazelnut, salmonberry and sword fern. The western end of the site appears to have been cleared at one time but has been re-vegetated within the last 20+years. The majority of the site is covered with a mixed forest with conifers as the main component in the overstory. Douglas fir with several 4'- 5' dbh specimens are the dominant species in the overstory with scattered big leaf maple and red alder. Understory species include hazelnut, indian plum, elderberry, sword fern, salmonberry, and stinging nettle. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 6 Soil pits excavated within the upland area of the site revealed soils with profiles similar to the mapped Alderwood series. 3.2.2 Wetlands A single scrub-shrub,riparian wetland was identified and delineated along the northeast corner of the site. The western edge of the wetland was flagged with orange/black flagging labeled AA1-AA2-Al-A7, and the east side with B1-B4. This narrow band of wetland borders Honey Creek which passes through its center flowing in a northerly direction. Vegetation in this wetland consists of small pacific willow, salmonberry, lady fern, skunk cabbage and manna grass. Soil pits excavated within the wetland revealed a sapric muck soil with a color of 10YR 2/1 which was saturated within 12" of the surface. Wetland A would be classified as PSS 1 C (palustrine, scrub-shrub, broad leaved deciduous, seasonally flooded) according to the US Fish and Wildlife Wetland Classification methodology(Cowardin et al. 1979). According to the criteria in City of Renton Municipal Code (RMC) Chapter 4-3-050.M.1, Wetland A would be classified as Category 2 wetland. Category 2 wetlands are defined in the Code as follows; ii. Category 2: Category 2 wetlands are wetlands which meet one or more of the following criteria: a) Wetlands that are not Category 1 or 3 wetlands; and/or b) Wetlands that have heron rookeries or osprey nests, but are not Category 1 wetlands; and/or c) Wetlands of any size located at the headwaters of a watercourse, i.e., a wetland with a perennial or seasonal outflow channel, but with no defined influent channel, but are not Category 1 wetlands; and/or d) Wetlands having minimum existing evidence of human-related physical alteration such as diking, ditching or channelization; and/or According to Renton Municipal Code(RMC) Chapter 4-3-050.M.1,"Wetland A"best meets this rating as a wetland with minimum evidence of human related physical alteration, but not meeting the criteria of a Category 1 or Category 3 wetland. Typically, Category 2 wetlands have a 50' buffer measured from the wetland edge. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 7 3.2.3 Streams As previously mentioned,Honey Creek passes through Wetland A and the northeast corner of the site. As required by Code,the ordinary high water mark(OHWM) of the creek as flagged with white/blue dot flagging labeled W 1-W8 on the west side and El-E4 on the east side. This is depicted on the attached D.R. Strong Consulting Engineers Plat map. Honey Creek is a slow flowing mud and sand bottom stream as it flows northerly through the site. Trash,pallets and tires line the edge of the creek in this area, although otherwise,the stream appears relatively healthy with about 6"of flowing water across its channel. The stream is strongly influenced by stormwater outfalls upstream as flow in the channel was noted to quickly increase following a rain event. The stream buffer on the project site is very healthy and includes large deciduous and coniferous tree species with a dense native understory. To the east and off-site,this buffer has been impacted by clearing and use of the areas as lawn for single family homes to the east. Honey Creek is mapped as a Class 4 stream by the City of Renton. Class 4 streams are non-salmonid bearing waters during years of normal rainfall and/or mapped on Figure 4, Renton Water Class Map, as Class 4". According to RMC Title IV Chapter 4.03.050.L.5.a, Class 4 streams have a 35' buffer measured from the OHWM of the creek. Although Honey Creek is a non-fish bearing water in this reach, approximately 'A mile downstream of the site this creek does become fish bearing. As a result this portion of the creek(and associated wetland)has an important function in providing a hydrologic source and attenuating low flow periods of year for the downstream fish bearing section. Wildlife use of the creek is limited to typical urban tolerant wildlife including deer, raccoon,coyote, 4.0 FUNCTIONS AND VALUES Wetland A The wetland on-site was analyzed for function using the Washington State Department of Ecology Wetlands rating System for Western Washington. This system is typically utilized to classify wetlands,but the classification is function-based, scoring three main functions, 1,)water quality, 2) hydrologic function, and 3)habitat functions. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 8 Wetland A-Wetland A was rated as a riparian wetland and scored a total of 52 points indicating a Category 2 wetland under this system which indicates moderate-high overall functional value. Its highest scoring function was for water quality which scored 20 points, and its hydrologic function was moderate at 18 points. Habitat value was generally low at 15 points due to the lack of unique habitat features, lack of a variety of plant communities, and the close proximity of development to its boundaries. Honey Creek Honey Creek is a seasonal non-fish bearing stream. As previously mentioned,this upper reach of the stream is strongly influenced by the storm flows directed to the channel upstream of the site. This includes several previously approved plats by the City of Renton(see map below). a: simmormwil-„.•ti _ q!PiC® C7 Fs IAml1 i 1 -i IIY L`A i lhY1fIMMd' Qf OILi • t- yi EIlIIMIha AEilllloraICI „ 7361 Y Pip ill 1 1C: 1 an!dl I.Location of entreated Era tltilliikc r J! pandnndetained Ora'of upstream 1e-.!ref p Instonnwater discharge 13 i1J stormwater pond ontfall, 11!1„1 q = kl o stream = IA wy .•.ti Ib A iei a=;eeeni A;roil to -'--, Sq VI Imo _- MLIM , ` illlllh1oil ij 47,I ., C are GII Nl.irs; w a'i, k ICd,£,IRento.n_L i.rnSr 11... ,Ecti a'it WaMri4! t a Opp'G : 17: 2:111.1:20/11: 111aLl' il litiIan n ra`cr'1) r IIIIE InGiJi1ill l i0j il a. Imo+ : vETre 11/ d; 9LivinirilMillaI• I.V:. Ce* pli1r iBtill! F 1 E<iliti r R Y! l s' l n ; G 1!!E m i BAD...ol. :} y 4f = O FinnVU L Rt1 y l-. _ ii 7 i .rr Imo. t<G`pX^ .!fl/- i>>S'10 lA a rim <'`._--.'.' Kr et, 0 R3<, fll F '-) al.1 .iIl i Ir d,r". c .rlQaaril.R•,.jf 1". 2 tr=7i0'i=•AIR 2 /,ale GII' sniFa I7 i1lLl.is`Zr:r wr+ n miceI,z iim: ,: a. AiCi kiiiii Ni•• .a-4°1I i^ is Or LIMP ilF frt7 ;91 4.2 HE&1011E4 1161iw..'42 t% a a i1 Lr. sr3;IP'1e: d,_. dIIII //11I11 11111)I(n ari.,'TSI a=o. c rr 7v. n caIOCSEIn.1E; r r.1 Fil tm !1! 111!l1i71`-W al ..l•., rn,!a,r`41lp rt l itrirg:4).-....,ila`` i '"7O8r1l `aP01, fir m ';1ItàIqr! O = art - o-+ r.-. .JI?4:P 1, k Map of Current upslreum storm flows into Honey Creek Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 9 At a minimum six (6) stormwater facilities currently discharge to Honey Creek upstream of the site,and there are several undetained,untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows, untreated stormwater, sediment loads from upstream sites(note mud and sand bottom throughout channel up and downstream) and as evidenced on the site,heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum 1/4 mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel,but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally,the ability of this stream to pass flows,maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. 5.0 REGULATIONS In addition to the wetland regulations previously described for wetlands and streams, certain activities(filling and dredging)within "waters of the United States"may fall under the jurisdiction of the US Army Corps of Engineers(ACOE). The ACOE regulates all discharges into "waters of the United States" (wetlands)under Section 404(b) of the Clean Water Act. Due to the increasing emphasis on Endangered Species Act compliance for all fills of Waters of the United State and Waters of the State,both the Corps of Engineers and Washington Department of Ecology should be contacted regarding permit conditions, compliance,and processing prior to commitment to any fill of wetlands or streams for this project. 6.0 PROPOSED PROJECT The proposed project is the construction of a 28 lot subdivision with associated access road, and storm water facility. The outlet of the stormwater facility will also pass through the wetland buffer. This is an exempt activity within the wetland buffer according to RMC Chapter 4-3-050.C. However, any area disturbed during installation of the outfall will be restored with native trees and shrubs. Pipers Bluff/#12-135 Sewall Wetland Consulting Inc. June 4, 2014 Page 10 The Pipers Bluff project included the requirement to connect to the existing water main to the east of the site. This work included crossing of a Category 2 wetland as well as a Class 4 water. This crossing would have temporary impacts to the wetland, stream and buffer. This work was conducted by the prior plat owner prior to receiving approval for the work. In addition, due to a failure of the stormwater pond wall, some impacts to 2,290sf of the buffer, as well as 869sf of wetland occurred. This consisted of sediment flowing from the wall failure into the buffer, wetland and stream near the outfall of the vault. After the failure, sediment was removed from the stream, and the area was covered with straw and silt fences installed. The pond was retrofitted with a liner to prevent this from happening in the future. 141111h401 0 i W '' j,'. tom' 1'' I' -. s V i 1 .„ T., ''''''‘.1 E ems!` hip 3 1,' - - — . Above: looking east at area of water line crossing and impacted area from pond failure 4-28-14. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 11 r4`' fit i.. s-' "• , - r' • Vie iii r s- ••: -- yy.•...' •-... . _ _ ,‘ - . ,...:'.:::: A . . : ir I . a t. ti; ;-..: Above and Below: Looking west at area of water line crossing and additional impact area from pond failure 4-28-14. r--- ter•: . k' 1, titt4o -a y i r r ; il w' ' t I .• . .i' p :- rir a -• k y,sr. 4•• - x i Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 12 Wetland and buffer impacts -Under City of Renton Municipal Code (RMC) Chapter 4-3- 050.M.8; 8. Wetland Changes—Alternative Methods of Development: If wetland changes are proposed for a non-exempt activity, the applicant shall evaluate alternative methods of developing the property using the following criteria in this order and provide reasons why a less intrusive method of development is not feasible. In determining whether to grant permit approval per subsection M2 of this Section, General Standards for Permit Approval, a determination shall be made as to whether the feasibility of less intrusive methods of development have been adequately evaluated and that less intrusive methods of development are not feasible. (Ord. 5676, 12-3-2012) a. Avoid any disturbances to the wetland or buffer; Avoiding the disturbance to the wetland, stream and buffer is not possible. The only way to access the existing water main is to cross the wetland, stream and buffer as depicted on the"Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13. This temporarily impacts a total of 424sf of wetland, 113sf of stream, and 969sf of buffer(total impact area 1,506sf). The disturbance (3,159sf total)to the buffer and wetland from the vault failure was unexpected and has occurred, so there is no way to avoid this disturbance at this point. b. Minimize any wetland or buffer impacts; The waterline will cross the wetland, stream and buffer in one of the narrowest area possible creating the least impact possible. The area of temporary disturbance is the bare minimum to get an excavator through the area. There is no alternative location for the water connection. The amount of disturbance to the buffer and wetland and stream from the storm pond failure was minimized during the clean-up and could not be avoided. c. Restore any wetlands or buffer impacted or lost temporarily; and The proposed restoration includes the replacement of topsoil within the excavated water line area to the original grades, and replanting with a dense layer of native trees and shrubs to restore the function and plant community to this area (see The Watershed Company Mitigation Plan). The area of the disturbance from the pond failure has had soils regarded to original grades and topsoil replaced. This area will be densely plated with native trees and shrubs see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). Pipers Bluff/#12-135 Sewall Wetland Consulting Inc. June 4, 2014 Page 13 d. Compensate for any permanent wetland or buffer impacts by one of the following methods: i. Restoring a former wetland and provide buffers at a site once exhibiting wetland characteristics to compensate for wetlands lost; Not applicable,all wetland and buffer area disturbed will be restored to original condition with no loss of area or function. ii. Creating new wetlands and buffers for those lost; and NA iii. In addition to restoring or creating a wetland, enhancing an existing degraded wetland to compensate for lost functions and values. To compensate for the unexpected impact to 3,159sf of wetland and stream buffer and wetland,the remaining buffer area on the site outside the disturbance areas,will be planted with supplemental tree plantings in the form of western red cedar scattered through the understory. In addition, all blackberry and weedy species will be removed from the entire buffer area. Stream Buffer Impacts Per RMC 4-8-120 The following alternatives shall be analyzed, including justification of the feasibility of each alternative: i. Avoid any disturbances to the stream, lake or buffer by not taking a certain action, by not taking parts of an action, or by moving the action; Avoiding the disturbance to the stream and buffer is not possible. The only way to access the existing water main is to cross the wetland, stream and buffer as depicted on the Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13. This temporarily impacts a total of 424sf of wetland, 113sf of stream, and 969sf of buffer(total impact area 1,506sf). The disturbance (3,159sf total)to the buffer and wetland from the vault failure was unexpected and has occurred, so there is no way to avoid this disturbance at this point. ii. Minimize any stream, lake or buffer impacts by limiting the degree or magnitude of the action and its implementation by using appropriate technology and engineering, or by taking affirmative steps to avoid or reduce the impacts; Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 14 The waterline will cross the stream and buffer in one of the narrowest area possible creating the least impact possible. The area of temporary disturbance is the bare minimum to get an excavator through the area. There is no alternative location for the water connection. The amount of disturbance to the buffer and wetland and stream from the storm pond failure was minimized during the clean-up and could not be avoided. iii. Rectifying the impacts by repairing, rehabilitating, or restoring the affected area; The proposed restoration includes the replacement of topsoil within the excavated water line area to the original grades, and replanting with a dense layer of native trees and shrubs to restore the function and plant community to this area(see The Watershed Company Mitigation Plan). The area of the disturbance from the pond failure has had soils regarded to original grades and topsoil replaced. This area will be densely plated with native trees and shrubs see Sewall Wetland Consulting Pipers Bluff Supplemental Critical Areas Restoration Plan). iv. Reducing or eliminating the adverse impact over time by preservation and maintenance operations over the life of the action; Not applicable, as a portion of the existing impact is a permanent water line. v. Compensate for any stream, lake or buffer impacts by replacing, enhancing, or providing similar substitute resources or environments and monitoring the impact and taking appropriate corrective measures. To compensate for the unexpected impact to 3,159sf of wetland and stream buffer and wetland,the remaining buffer area on the site outside the disturbance areas,will be planted with supplemental tree plantings in the form of western red cedar scattered through the understory. In addition, all blackberry and weedy species will be removed from the entire buffer area. c. Impact Evaluation: i. An impact evaluation for any unavoidable impacts prepared by a qualified biologist,to include: a) Identification, by characteristics and quantity, of the resources (stream, lake) and corresponding functional values found on the site; Pipers Blz ff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 15 Approximately 100 linear feet of the Class 4 stream passes through the site. Honey Creek is a seasonal non-fish bearing stream. As previously mentioned,this upper reach of the stream is strongly influenced by the storm flows directed to the channel upstream of the site. This includes several previously approved plats by the City of Renton(see map below). At a minimum six(6) stormwater facilities currently discharge to Honey Creek upstream of the site,and there are several undetained, untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows, untreated stormwater, sediment loads from upstream sites (note mud and sand bottom throughout channel up and downstream) and as evidenced on the site, heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum 1/4 mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel,but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally,the ability of this stream to pass flows, maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. b) Evaluation of alternative locations, design modifications, or alternative methods of development to determine which option(s) reduce(s) the impacts on the identified resource(s) andfunctional values of the site; The required connection to the water line to provide water service to the site is required for development. There is one location where this connection can occur and there are no other options. The water line connection was designed with the minimum necessary amount of disturbance and impacts to functions of the buffer and stream to be able to make the service connection. c) Determination of the alternative that best meets the applicable approval criteria and ident significant detrimental impacts that are unavoidable; The proposed(and now constructed) water line connection was the alternative with the. least impact to critical areas that was available for water service to the site. The significant impacts were clearing of vegetation along the wetland, stream bank and buffer. These were unavoidable to construct the water line through the critical area corridor. Pipers Blzff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 16 d) To the extent that the site resources and functional values are part of a larger natural system such as a watershed, the evaluation must also consider the cumulative impacts on that system; At a minimum six (6) stormwater facilities currently discharge to Honey Creek upstream of the site,and there are several undetained,untreated outfalls to this system as well. As a result this stream is heavily impacted by flashy flows, untreated stormwater, sediment loads from upstream sites (note mud and sand bottom throughout channel up and downstream) and as evidenced on the site,heavy amounts of trash and debris in the channel. The fish bearing portion of this creek is at a minimum 'A mile downstream of the site. The main function that this upper stream reach provides is a conduit to pass water to the downstream fish bearing portions of the stream. There is some minimal aquatic invertebrate use of the channel, but this is limited due to the seasonal water in the stream and the apparent high water temperatures and low oxygen levels in the spring and early summer when flow is present. Functionally, the ability of this stream to pass flows,maintain cool water temperatures, and allow sediments and contaminants to drop out of the water column prior to reaching the fish bearing portion of the stream is the main function this channel provides. It also provides a seasonal water source to the urban tolerant wildlife in this area. e) For shorelines regulated by RMC 4-3-090, evaluation of how the preferred alternative achieves the standard of no net loss of ecological functions under RMC 4-3- 090D2. Not applicable ii. For a violation, the impact evaluation must also include: a) Description, by characteristics and quantity, of the resource(s) andfunctional values on the site prior to the violations; and The area of wetland and stream buffer, as well as wetland that was impacted by the storm water pond failure was under a power line easement and had been cleared of most large woody vegetation. Most of this area was blackberry with some salmonbeny and vine maple and had trash and debris dumped in this area. Functionally this area prevented access to the stream and wetland as well as filtered some runoff prior to entering the stream. It also provided very minimal shading to stream waters. Although this blackberry thicket was removed, it did provide some protection to the wetland. All runoff from the site and NE 12th Street were undetained with no water quality treatment prior to entering the stream and wetland. b) Determination of the impact of the violation on the resource(s) and functional values. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 17 The temporarily impacts from the clearing associated with the storm pond failure consists of a total of 3,159sf total, consisting of 869sf of wetland and 2,290sf of buffer. There has been a temporary loss of stream and wetland buffer function that the vegetation previously present provided. This will be compensated for through the dense native plantings proposed in the mitigation plans which should functionally, restore this buffer to a condition better than the prior condition. Stream and stream buffer impacts-(RMC) Chapter 4-3-050.1.8b states these criteria needed for crossing of a stream and its buffer; 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 extent possible; and The stream is a non-fish bearing water. A Hydraulic Project Approval (HPA) was submitted and received for the project from WDFW and met all of their criteria for avoidance of critical habitat areas. As previously discussed for wtelands,this is the only location where the water line could be connected and therefore temporary impacts to the stream buffer were required. b) The utility is designed consistent with one or more of the following methods: 1) Installation shall be accomplished by boring beneath the scour depth and hyporheic zone of the water body and channel migration zone; or The boring was placed below the scour and hyporheic zone and was approved as appropriate by WDFW for a stream crossing with a utility. 2) The utilities shall cross at an angle greater than sixty (60) degrees to the centerline of the channel in streams or perpendicular to the channel centerline; or The crossing was a nearly perpendicular angle to the stream minimizing impact as required. 3) Crossings shall be contained within the footprint of an existing road or utility crossing; and NA c)New utility routes shall avoid paralleling the stream or following a down-valley course near the channel; and The new line avoids paralleling the stream or following a down-valley course as required. Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 18 d) The utility installation shall not increase or decrease the natural rate of shore migration or channel migration; and The construction method and restoration plan should restore the stream to a condition that will not increase or decrease the natural rate of shore migration or channel migration. As shown in the two mitigation plans for this project,the entire area of disturbance in the wetland and stream bank area will be densely planted with willow stakes. This will restore a dense plant community and stream bank canopy to this area. In addition, willows are very effective at soil stabilization and preventing erosion and channel migration from occurring within this portion of the stream. e) Seasonal work windows are determined and made a condition of approval; and The work was conducted during the seasonal work window approved by WDFW for the stream crossing project. fl Mitigation criteria of subsection L3c(ii) of this Section are met. A mitigation Plan meeting this criteria("Piper's Bluff Wetland and Creek Restoration Plan"prepared by The Watershed Company dated 7-31-13)has been submitted to the City. In addition,the areas outside of this plan that were disturbed are covered by the Pipers Bluff Supplemental Critical Areas Restoration Plan"prepared by Sewall Wetland Consulting. The restored wetland, stream and buffer will be monitored 4 times in Year 1, and twice a year for 5 years as requested by the City and required by Code. 7.0 HYDROLOGIC ASSESSMENT The proposed project has been designed to avoid the wetland, stream and its associated buffer. However,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream. Wetland A is a narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of stormwater facilities located south of the site. The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surficial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal, with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation. The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. This should insure water Pipers Bluff/#12-135 Sewall Wetland Consulting, Inc. June 4, 2014 Page 19 that currently makes it way from the site to the wetland and creek continues to do so. Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff dated January 31, 2013-see table below),there is a minor increase in the flow rates off the site from pre-developed rates. This should insure the project will not dry out the wetland, and that adequate hydrology enters the wetland to maintain its viability. DESIGN INFORMATION I INDIVIDUAL BASIN I Water Quality design ilow 1._._____.._ Water Qualiltreated volume nDrainago_basin(s w Onsite area(Inlcudes frontage) 4.98 Offsita area 0 T Type of Storage Facility 11Pond _ Live Storage Volume (recuired) 169,132 yred©v Runoff Rate__ 2yaar _I 0.139 _ _ _ _ 10-year yr 0241 100_year .0.402 Devnlaped Runoff Rate 2-year I 0.928 ID-year 11.12 1_0.0_-year j.1.8t3 Type of Restrlctgr..___.. I Frop-Toe Size of orificelrestrfction No. 1 0.88 No.3 11.40 Above: Table from DR Strong Drainage Report If you have any questions regarding this report, please call us at(253) 859-0515 or at esewall@sewallwc.com . Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetlands Ecologist PWS #212 Attached: Data Sheets WADOE Rating Form Site Plan/survey Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 20 REFERENCES Cowardin, L., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service, FWS/OBS-79-31, Washington, D. C. Daubenmire,R. 1959. A canopy-coverage method of vegetational analysis.Northwest Science 33:43-64. Diers,R. and J.L. Anderson. 1984. Development of Soil Mottling. Soil Survey Horizons, Winter 1984,pg 9-15. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1. U. S. Army Corps of Engineers Waterways Experiment Station,Vicksburg, Mississippi. City of Renton Municipal Code Hitchcock, C. and A. Cronquist. 1976. Flora of the Pacific Northwest. University of Washington Press, Seattle, Washington. Munsell Color. 1988. Munsell Soil Color Charts. Kollmorgen Instruments Corp., Baltimore,Maryland. National Technical Committee for Hydric Soils. 1991. Hydric Soils of the United States. USDA Misc. Publ.No. 1491. Reed, P., Jr. 1988.National List of Plant Species that Occur in Wetlands:Northwest Region 9). 1988. U. S. Fish and Wildlife Service, Inland Freshwater Ecology Section, St. Petersburg, Florida. Reed,P.B. Jr. 1993. 1993 Supplement to the list of plant species that occur in wetlands: Northwest(Region 9). USFWS supplement to Biol. Rpt. 88(26.9) May 1988. NE 1/4 SECTION 1Q, TOWNSHIP. 23 N, RANGE 5 E, W.M. r Irx : P/PER' BLUFF 1 . I:•C l=: ir.1.St_. m ..._ _._ _' - .. pliJ a1 P.tnR a +Y31 Van/V AY•').-r64.9 - = LB L_ 1.. r - SINIJ)ml5li•,U AF;F• SLL;61.014 LSaGI'R 1 i i,r Rn1.}.Ux a ':I•. }' t IN i 1 r.+v,13a-C IPPf.'+J. 'A'iLGf, I.-. .r_. C I-N'= 1 G per TKw YA.IJMI 4 Ya D ••' T:'r0; C' a -'`.`.-.N p....--.. c . .^.:ta.^• 7'', I,VEn¢_cc.'y5$'"', .rsER V Ci`' r I vsR¢i,in?aqua'..:` .-- A-- ---.-• •-R- •w,f-• I'4. a: r_ " 4 tr- '.ri'-.11 .41..,ii, '``''''°'"..:- „•,r utc,..s ?- ,,,: liAlr ,\` _i."", ie•,. , T,,- a---_ 14 •1.:1 L t.,,„ ' r tmllCkLtY 2^. PALsa a. E. L'• r.•f. N rP .Tn 2' aac9. -Pm:r 3 i' t N • S,', u irsLs{`.rn l: LY+--- n;. 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PF:XGsm smartuAwAcr ••, _, ! .`. tdEr a p\;-• .. -- lE _ -_ 1 L - L_ _ __.1 L.._..-,_._J L,' I ASId DVMgSAYASVM1C '•' A-•`"• T-I.,,•4---' .. ._. _ J N ayny,'87,0.0 muu¢ r e ls%IlIt4.I--•. I u_y' J . '.• ,, mar.SPIDI yl.:• ' 6i'0i t sl" 1--K3A.0 u ;----' --I-: D SURFACE WATER DRAINAGE NOTES AND SPECIFICATIONS NOTE' I.MIa:L AYY RWSfxLCMHma,aNYwrACnND•P[LYW9.AAK'-M11lMYLaGY WOW Y!Sr PE lALO nmA9'S6D r[IrOC AfYM/m ar R0A0dawn Die CRASS a=10.7L 01007 nIAY On.Dr PRIM ..LWvl araMoaRr+Yr .,,,4•fLrmw,,,,..PLOLra gwrMYAr„,/Wr!£Af!I•(a Mass I,DatY 31G1t LCM aKcr lvrttaAe ALSSY'ro PP , NM DK my cr memfLAN WPM powDasTAM uerAceut Lagarrn C1707. roSWfAraa[CLAM AMM]lw er]ACLIDtIc TLanfAllrAMhalOr ar an'd RdmA6rA'+'L.Yc/bcitotlrojivHlC LaWSAWYAS,FArL,L 1RaY Naa.AY AOICIKnnY'''{OAl Crar"Aea11L' . I ALL PW3WLCMorh MNA[miauAYMOI DK(PIPSA5aAAA SPrdkATriz/DR Raga 6W¢_t•D •' v#A¢N,,,..N1rr YCMYL II.a onal Dtr7 PAD174FRoicntaru•GC at,,Maui.POLL[KSULY.9 VJfPRWr SIWIML,LAZWRLbl/ID pomp wVLFNNmY SW1 RLLYCrx LwSMI.C1YHVHIPAam nY hSDa/IM IMAM,•A6W PIl^(MWNYS ASSWAiG'I(IY•[tl A! P.ALL Pif A'O APMFIDLLW¢S PYLL at Gw[uAPPGULCTPPP.Km IWWAINY WA:^•YL`Y MM ,Lirm mS00/LU-w6'NrLCr.oa Y'lrrYSr nSR4CNU"JWIIPr.AIIPL• A• ALL LV DK r RawY P'm.rrr. L n ar Ds carWRwlw neva aVoir mAaomrt nor -lY rc cr wAPworw SMwLm WPWICAnw Lae aaaA:n 6a¢ •• S exar aoar/1_JarsAxi it s,Au.:rear wAr/.nLO-arr roacvlal•AInrL.wLw9. NORTHSaACrro'r. i..efsrr['ARY>>.>ta v e Leda!Boaw a4 Mr d rNL NW RA,r/Sa-.GCDJSSNR A.D Sf.v/Aa-KIaRaWL,¢ST-,rY inALD[CLIanivtno A¢w wc m we Amman naves OLK. %PR:a,nw YOVILILAr Ma Ar MfDO.'r AUO ,„,„, A m 9aaWCul,,,,la MSP'N ma rnr r. ILLLAL 1701YQ'MS I0511P AA altMx IRLSac An/CLID,5AYtrlt RLOIR .0L WMrdmr/004(1Y'MrvmD wunfsr D.Ore.let ALL x sc LIM/ LALL U,,,, e N07 artwmcsGLE uOr A9fia4'AL/FW Pe tlrYYMlaN PI., Y(WSSMMNIwr,PMALf rwIR 7Zn,.. • •A41pyF{L aWD S444.¢Asrer..s T hint a17(It,PM(r f.AL.Ar nal.,cPjI lflLL WALL IL AILalas A. LYD DDr DC R.Na lWIIa001 OA Pd:L r4 a>tKL'lm m MLrm'IX 10 OLC 0 LOOtU.'aNPA1RD mAVLWYrSiRAPA,NLCfAW SfAVaI1NAt DLL AL.MX,DD105wYPm AS1Y 0.1!!1-m NSLSS•VRiDIm DY DC OlYPIAH aC,ISNq pi}LWA¢ICl1LF UMIIYYCM'L AY AMMAILLY Lrir111ALD51 PI,11 PoM3L/LL ptfwV UM(11i rl LiraRa Q 1¢= 60 y AAm'+YU'Mf2 MPRDIm FLAYS FVSfYSM[GLD1C•5w 9R:WG'l1aHR CwSMUyDaY6HAT%MS: M4 aMla lnhM 9lNL aear•GaSaknr AW V6R P1Crl"L MOD.=Cane;AS-9..000O rOrMSDIAN•A¢SM.(MtL LC 9laNniDmnQ olr Ww rnilL,La M,¢'taYV1lNMK FlOQe mcu'SIRYIDVt IY S`• ISi LL I0.SK1 AMNt W WI LWIDIC q.WS tlK ar POIRW PLpIM,. adMNulL r0. sp aA wm i[LL NLIaT Aa•aY•1WAa AgIN,S SHALL LN,LAYWHr LA I1SLWIW a"IIK d14YVC CR Lnirlolon01 rh'lltcr we are d'PLLmY OttoDorDOL.INC 0MRL1 1Wa11•JOR R A4.ia,KlAMW2ro9alFALV>m'WSTef rl lPCClrlar/NeI m arNa ALA 1LG.V II.SLMCI R6 ADAMLNr or PraLLRD WaW torotI ar Tee930:rM LF.WY Sire 0GW.1¢F,PL at D"4D'^• L`"''r' •'w' Ir oa.D4crmwnL SIRI.YYDA1m Mv09ngd DflAWINQS NOT APPROVED D rLamrnn Radar LaLSA+rAcrmr•wrL.m..AsaM Far nrcFRc eLg nruMywDAx sxLrnw AAa xrl.rsr cs+nr cmrsrrA.rrxmwM wnsntucawrs maamr AO VC tarmMar mL•FwrAvr aLAw•n aws YAWLrI Or Im°`srml DOM.wee.mL.o.= FOR CONSTRUCTION UNLESS R•ECOMMENDED •• PDminll Mr d-SaL LPoSW IN5 ALMA la.ALL GIatr•LvraO169NLLDCOP/dSLD OLD IILT&WV PA1P,•ATILISI. DA i1cmYlNbaR srALL r.D w5ADr 104 NLO„WD ADOCOAa.LVLLVAA4 surntt.PRlccmr FOR APPROVAL • . ALL MmaaYADRLA`nw lACURYUrrBC MSLWrD MIN ML¢iillai/50M ro pp,,N LMMJLm!wp MPS.)nxYmc xa Mr UMAe Mram LVOV m PROW r e DM 1?.1 M a,Y Or for STAMPED OR$1GNED APPROVF I.ILL axsoverkW Armin WADS,aDmla6rATMNa or 174 PUG.,M1rof5 COODoe 0,470¢.L.7 ra Au L8Y Tar-1 LWG4 aRAa•YSC 9n.M rIHIlGL NNOD La molar rRaterr Lv tlY,icarr ww nk'vrRraRYAY[r LF'MNX tr rRm!r MC CL BY aG1NZialY AYr Maer wnw De AA,4[a molr d'NAY MA/YAYNmMprNalYAI.IAAFAa now 9WL P[ BY THE REVIEWING AGENCY II.ALL,as Laf(N-la)19000 alalwsD9DwL roma 000n, m0RI1.R.WAFvALAr Dr De Nlle RaI-CT180/10'Nr r.RAYSPwSAT10V SSW.1LGInTw,ALL DY SrOna,S Of M RIDatSTAMAea SerandrAYl r-0r-SS L cre r!Wt MftY. BYISDROLLYAA.MS r la cam aF swot.UNLSS ononf5L 9/0YL I O' JDG to.ALL GAns'ARC YAYLp ODA=trans 1MRMS 91aw4 Y,,r... , o D.R.STRONG Is As Nmm ,«:rvxaV•,• g CITY OF oasR-fa catW o.na,1Wars' T I (xwsucnNo EltaNmts• FYc0088.,PIPERS BLUFF •. z 11 •, 1,,, 24_Cc tt ry! t ma' GAa,.>A„L eery MOLT. RENTON STAOEI DRAINAGE PLAN i.ti . g WleAO LmJWt555 :V-•• y+ b , 'Att.,. ,i1lLal u=wASWr 04.1 o, 1 u PiaMnq/BWWIn9/PuaRc Works OaPL fOM:RLM1WN I - s Vim. NO. FE0PIDN OY MIE APPft Ce rTD A-NNNNAA WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys,and Coast Region 11• Project/Site: 74.-) I`•---t- City/County: 12"' ' '`J Sampling Date: 6—cc—r t_ Applicant/Owner: State: Sampling Point: 4)1' Investigator(s): 2.)- ..---- Section,Township,Range: Landform(hillslope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR):Let Long: Datum: Soli Map Unit Name: NWI classification: Are climatic/hydrologic conditions on the site typical for this time of year? Yes No If no,explain in Remarks.) Are Vegetation ,Solt ,or Hydrology significantly disturbed? Are"Normal Circumstances'present? Yes No Are Vegetation ,Soil ,or Hydrology naturally problematic? (If needed,explain any answers in Remarks.) SUMMARY OF FINDINGS- Attach site trap showing sampling point locations,transacts,important features,etc. fHydrophyticVegetationPresent? Yes No is the Sampted Area Hydric Soil Present? Yes No fWetlandHydrologyPresent? Yes No within a Wetland? Yes No Remarks: . 466,v.e. 4.r,4„,c. r+r,.. J) VEGETATION-Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet Tree Stratum (Plot size: Cover Species? Status Number of Dominant Species 1. Ps+,ro4'I3" c M,Wy^-d,aI G.b P:4-'V That Are osl,FACW,or FAC:1 A) 2. Total Number of Dominant 3. Species Across All Strata: Lt (B) 4. Percent of Dominant Species Sanlinv/Shrub Stratum (Plot size: Total Cover That Are OBL,FACW,or FAC: ANB) 1.Zt./21,s dl,S co/4,-- U PA-L(-1 Prevalence Index worksheet: 2. IZc.,61.--,r Ste./'`i 3 U Pit'C Total%Cover of: Multioly bv: 3. OBL species _ x 1= 4, FACW species x 2= 5, FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Piot size: 1 UPL species x 5= 1, ?Joy 4-) sh c 44v1,, n,vim' .^y h r/ie IColumn Totals: A)B) i 2. 3. Prevalence Index=B/A= 4. Hydrophytic Vegetation lndibators: 5. Dominance Test Is>50% 6. Prevalence Index is 53.01 7. Morphological Adaptations'(Provide supporting data in Remarks or on a separate sheet) 8. Wetland Non-Vascular Plants' 9. 10 Problematic Hydrophytic Vegetation'(Explain) Indicators of hydric soil and wetland hydrology Must 11. be present,unless disturbed or problematic. Total Cover Woody Vine Stratum (Plot size: 1. Hydrophytic 2 Vegetation Present? Yes No '-"---- Total Cover Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers Western Mountains.Valleys,and Coast-Interim Version SOIL Sampling Point: Z Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % Type* Lod` Texture Remarks G 3L.3 SL. Type: C=Concentration,D=Deptetlon,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 2Locatlon: PL=Pore Lining,M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': Histosol(A1)Sandy Redox(S5) 2 cm Mack(Al 0) Histic Epipedon(A2) Stripped Matrix(86) Red Parent Material(TF2) Black Histic(A3) Loamy Mucky Mineral(F1)(except MLRA 1) ^Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(A11) _Depleted Matrix(F3) Thick Dark Surface(Al2}Redox Dark Surface(PS)Indicators of hydrophytic vegetation and Sandy Mucky Mineral(Si) Depleted Dark Surface(F7)wetland hydrology must be present, Sandy Gleyed Matrix(S4) Redox'Depressions(F$) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches); Hydric Soil Present? Yes No Remarks: U HYDROLOGY Wetland.Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary indicators(2 or more required) Surface Water(Al) Water-Stained Leaves(69)(except MLRA _ Water-Stained Leaves(B9)(MLRA 1,2, High Water Table(A2) 1,2,4,4,and 4B)4A,and 48) Saturation(A3) Salt Crust(B11) Drainage Patterns(B10) Water Marks(B1)Aquatic invertebrates(B13) Dry-Season Wafer Table(C2) Sediment Deposits(B2) Hydrogen Sulfide Odor(C1) Saturation Visible on Aerial Imagery(09) Drift Deposits(83) Oxidized Rhizospheres along Living Roots(C3) Geomorphic Position(D2) Algal Mat or Crust(B4) Presence of Reduced Iron(C4)Shallow Aquitard(D3) Iron Deposits(B5) Recent Iron Reduction in Tilled Soils(C6) _ FAC-Neutral Test(D5) Surface Soil Cracks(B6) Stunted or Stressed Plants(31)(LRR A) — Raised Ant Mounds(D6)(LRR A) Inundation Visible on Aerial Imagery(B7) _ Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(B8) Field Observations: Surface Water Present? Yes No Depth(inches): Water Table Present?Yes No tpth(inches): Saturation Present? Yes No Depth(inches): Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous Inspections),if available: Remarks: i,-A C 4.. .71re US Army Corps of Engineers Western Mountains,Valleys,and Coast Interim Version WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys,and Coast Region Project/Site:NTt`?.fi.J City/County: /-t..J 'nj Sampling Date: 6 Cr t I"2_ Applicant/Owner: n I State: Sampling Point t) Z ICI^`d- investigator(s): J a.A Section,Township,Range: Landform(hilislope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR):Lat Long: Datum: Soil Map Unit Name: NWI classification: Are climatic/hydrologic conditions on the site typical for this time of year? Yes No if no,explain in Remarks.) Are Vegetation ,Soil ,or Hydrology significantly disturbed? Are"Normal Circumstances"present? Yes No Are Vegetation ,Soil ,or Hydrology naturally problematic? (If needed,explain any answers in Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transacts,important features,etc. Hydrophytic Vegetation Present? Yes t..-" No is the Sampled Area Hydric Soil Present? Yes 1/ No within a Wetland? Yes No Wetland Hydrology Present? Yes No Remarks:4).4“4VG tea.-r..-. I r.,,,,.,R.11 VEGETATION—Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: Cover Species? Status Number of Dominant Species 1. That Are OBL,FACW,or FAC:z- (A) 2. Total Number of Dominant 3, Species Across All Strata: Z (8) 4. Percent of Dominant Species Total Cover That Are OBL,FACW,or FAC: I Uv (NB) Sapling/Shrub Stratum (Plot size: 1 1, Rt./t i—S 7 44,s 7/) PA-C.- Prevalence index worksheet 2. Total%Cover of: Multiply by: 3. OBL species x 1= 4. FACW species x 2= 5. FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Plotsize: UPL species x 5= 1. 7'vii'/ • T' 1? C..- Column Totals: A)8) 2. 3.Prevalence Index=8/A= 4, Hydrophytic Vegetation Indicators: 5. Dominance Test is>50% 6. Prevalence Index is s3.01 7. Morphological Adaptations'(Provide supporting data in Remarks or on a separate sheet) 3' Wetland Non-Vascular Plants' 9. 10 Problematic Hydrophytic Vegetation'(Explain) 11. indicators of hydric soil and wetland hydrology must be present.unles$disturbed or problematic. Total Cover Woody Vine Stratum (Plot size: 1. Hydrophytic 2. Vegetation Present? Yes No Total Cover Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers. Western Mountains,Valleys,and Coast—Interim Version SOIL . Sampling Point: 4 N Profile Description: (Describe to the depth needed to document the indicator or cancan the absence of indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % . Types Loc2 Texture Remarks g- /OW' 7'/J S7 'crv..ck iG ioyh z)/ ys 'l TType: C=Concentration,D=Depletion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. location: PL=Fore Lining,M.-Matrix. Mythic Soil indicators: (Applicable to ail LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': istosol(At)Sandy Redox(S5) 2 crn Muck(A10) Histic Epipedon(A2) Stripped Matrix(S6)Red Parent Material(TF2) Black Histic(A3) Loamy Mucky Mineral(F1)(except MLRA 1) Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(A11) _ Depleted Matrix(F3) Thick Dark Surface(Al2) Redox Hark Surface(PS)3lndicators of hydrophytic vegetation and Sandy Mucky Mineral(S1) Depleted Dark Surface(F7)wetland hydrology must be present, Sandy Gleyed Matrix(S4) RedoX Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches):r Hydric Soil Present? Yes No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required;check all that apply) Secondary Indicators(2 or more required) Surface Water(A1) Water-Stained Leaves(B9)(except MLRA _Water-Stained Leaves(89)(MLRA 4,2, Hi h Water Table(A2) 1,2,4A,and 4B)4A,and turation(A3) Salt Crust(811) Drainage Patterns(810) Water Marks(61)Aquatic Invertebrates(B13) Dry-Season Water Table(C2) Sediment Deposits(B2) Hydrogen Sulfide Odor(C1) Saturation Visible on Aerial Imagery(C9) Drift Deposits(83) Oxidized Rhizospheres along Living Roots(C3) Geomorphic Position(D2) T, Algal Mat or Crust(B4)Presence of Reduced Iron(C4)Shallow Aquitard.(D3) Iron Deposits(65)Recent iron Reduction in Tilled Soils(CS) _FAC-Neutral Test(05) Surface Soil Cracks(66) Stunted or Stressed Plants(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) Inundation Visible on Aerial Imagery(87) Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(BP)• Field Observations: Surface Water Present? Yes No / Depth(inches): Water Table Present?Yes tr,No Depth(inches): d Saturation Present? Yes No Depth(inches): 0 Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well.aerial photos,previous inspections),if available: Remarks: US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version Wetland name or number Wetland canto or number WETLAND RATING FORM—WESTERN WASI INGTON Does the wetland unit being rated meet any of the criteria below? Versien 2-Updated July 2006 to increase accuracy and reproducibility among users If you answer YES to any of the questions below you will need to protect the wetland Updated Oct 2008 with the new NVDFW definitions for priority habitats according to the regulations regarding the special characteristics found in the wetland. Name ofwetland(if]mown): AA'tkvt 4173 -1* Date of site visit:. G.1 1 Z v A r,01*.4.T;isti;ldrWdiauitk,:!p'atMay:;Need:Additviiiil,;. rotectibn, .::"YES • :CIO; Rated by dti..A.ik Trained by Ecology? Yes No Date ot'training xn ui1•ditioii to the..jiii"titiedt on edoIfiznetiried•for•sti eategoiy:• • ... • • SP1.Has the wetland twit been documented as a habitatfor atryFederally listed SEC:—TWNSIIP:_RNGE: _ Is S/T/R in Appendix D? Yes No Threatened or Endangered animal or plant species(TIE species)? Mapof wetland unit:Figure Estimated size For the purposes of this rating system,"documented"means the wetland is on the f/ appropriate state or federal database. SP2.Has the wetland unit been documented as habitat for any State listed SI TVIlIIARY OF RATING Threatened or Endangered animal species? For the purposes of this rating system,"documented"means the wetland is on the appropriate state database.Note: Wetlands with State listed plant species are Category based on,FUNCTXONS provided by wetland categorized as Category INatural Heritage Wetlands(see p.19 of data form). I II III IV SP3.Does the-wetland unit contain individuals ofPriority species listed by the WDFYYfor the state? Score for Water Quality Functions ZO SP4:Does the wetland unit have a local significance in addition to its functions? 1/Category I=Score>'10 For exam le,the wetland has been identified in the Shoreline Master Category II=Score 51-69 Score for Hydrologic Functions j p Category III=Score 30-50 Score for Habitat Functions s Program,the Critical Areas Ordinance,or in a local management plan as Category IV a Score<30 having special significance. TOTAL score for Functions Category based on SPECIAL CHARACTERISTICS of wetland I If Does not Apply To complete the next part of the data sheet you will need to determine the r ( Hvdrozeomotphic Class of the wetland being rated. Final Category(choose the"highest"category from above) C '7,...- The hydrogeomorphic classification groups wetlands into those that function in similar ways. This simplifies the questions needed to answer how well the wetland functions. The Hydrogcomorphic Class of a wetland can be determined using the key below. See p.24 for more detailed instructions , Summary of basic information about the wetland unit on classifying wetlands. Yctiarid.Uritfh4Spcctal s':Wetlurid;IiGM,Class:. ,.; CLiIractdristic5.::..••:::•.•°:.-...::;•:`;:::a.`:%: :uieifbi4Rtiiiii •;`i'.:• Estuarine Depressional r/'/Natural Heritage Wetland Riverine Bog Lake-fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal • None of the above Check if unit has multiple I1GM classes present Wetland Rating Farm—western Washington I August2804 Wetland Rating Form—western Washington 2 August2004 version 2 To be used with Ecology Publication 04-06-025 version 2 Updated with new WDFW definitions Oct.2008 Wetland name ornambcr Welland name or number Classification of Wetland Units in Western Washington 5.Does the entire wetland unit meet all of the following criteria? . t211e unit is in a valley,or stream channel,where it gets inundated by overbank flooding from that stream or river ICthe liydrolegle-crlferittlisted'iir:epeh i,4tl'bii;deituithpply tbthe?en tiie Kitt b6Ing-,;„.':,:.' Phe overbank flooding occurs at least once every two years. iratediiyeu proliably]rove,d IiiCii.ithii*ltiple:I Glvl clnsscs=Xn tliis;caso)xho2Ttif04.1. >, NOTE:The riverine unit can contain depressions that are filled with water when the river is liydrolege'.ci$te$il lri:ryirestibris 0 apply;hiid,`go'.to Question 8 not flooding. NO-go to 6 . hS—The wetland class is Riverfue 1.Are the.v t levels in the entire unit usually controlled by tides(i.e.except during floods)? 6.Is the entire wetland unit in a topographic depression in which water ponds,or is saturated to the i O— o YES—the wetland class is Tidal Fringe surface,at some time during the year. This means that any outlet,ifpresent,is higher than the interior of the wetland. If yes,is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per NO—go to 7 YES—The wetland class is Depressional thousand)? YES—Freshwater Tidal'Fringe• NO—Saltwater Tidal Fringe(Estuarine) l Ifyour can be as a Fringe use the forms for Riverine 7.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank I ylan wetland it[ can b v classifiedl Tidal asFringe it Freshwater Tidal an Tinge useine wetland Wetlands.Rivethat flooding. The unit does not pond surface water more than a few inches.The unit seems to be If maintained by high groundwater in the area. The wetland may be ditched,but has no obvious were called estuarine in the first and second editions of the rating system are called Salt natural outlet. Water Tidal Fringe in the Hydrogeomorphie Classification. Estuarine wetlands were categorized separately in the earlier editions,and this separation is being kept in this NO—go to 8 YES—The wetland class is Depressions! revision. To maintain consistency between editions,the term`Estuarine"wetland is kept. Please note,however,that the characteristics that define Category I and II estuarine g,Your wetland unit seems to be difficult to classify and probably contains several different HGM wetlands have changed(see p. ). clans. For example,seeps at the base of a slope may grade into a riverine floodplain,or a small stream within a depressional wetland has a zone of flooding along its sides.GO BACK AND 2.The entire wetland unit is flat and precipitation is the only source(>90%)of water to it. IDENTIFY WHICH OF THE HYDROLOGIC REGIMES DESCRIBED IN QUESTIONS 1-7 Groundwater and surface water runoff are NOT sources of water to the unit. APPLY TO DIFFERENT AREAS IN THE UNIT(make a rough sketch to help you decide). Use 1•—-o • 4 YES—The-wetland class is Flats the following table to identify the appropriate class to use for the rating system if you have several If your wetland can be classified as a"Flats"wetland,use the form for Depressional HGM classes present within your wetland. NOTE:Use this table only if the class that is wetlands. recommended in the second column represents 10%or more of the total area of the wetland unit being rated. If the area of the class listed in column 2 is less than 10%of the unit;classify the 3. Does the entire wetland unit meet both of the following criteria? wetland using the class that represents more than 90%of the total area. The vegetated part of the wetland is on the shores of a body of permanent open water without any vegetation on the surface)at least 20 acres(8 ha)in size; 77G.V1Glasseswithi)r:llit;'ivegdlyd wimbeiitirrated;< ::tHG!vIOlass:to.Use•iss RatiisR••• t least 30%of the open water area is deeper than 6.6 ft(2 m)? Slope+Riverine Riverine O—go.YES—The wetland class is Lake-fringe(Lacnstrine Fringe)Slope+Depressional Depressional 4.Does the entire wetland unit meet all of the following criteria? Slope+Lake-fringe Lake-fringe The wetland is on a slope(slope can be very gradual),Depressional+Riverine along stream within boundary . Depressional The water flows through the wetland in one direction(unidirectional)and usually Depressional+Lake-fringe Depressional comes from seeps. It may flow subsurface,as sheetflow,or in a swale without Salt Water Tidal Fringe and any other class of freshwater Treat as ESTUARINE under distinct banks. wetland wetlands with special The water leaves the wetland without being impounded? characteristics NOTE: Swface water does not pond in these type ofwetlands except occasionally in very small and shallow depressions or behind hummocks(depressions are usually • If you arc unable still to determine which of the above criteria apply to your wetland,or if you t diameter and less than 1 foot deep). have more than 2 HGM classes within a wetland boundary,classify the wetland as Depressional NO-go to 5 YES—The wetland class is Slope for the rating. Wetland Rating Form—western Washington 3 August 2004 Wetland Rating Form—western Washington 4 August 2004 version 2 Updated with new WDFWdefinitions Oct.2008 version 2 Updated with new WVDF\Vdefinitions Oct.2008 Wetland name or number Wetland name ornumbcr R 121yeiiiue:ail`Oreshv'vtitel:;TiilitlFrii"e:Wetl cis t oirits°-:'•,r g.4'scot C' Il C•: 1 'f3S:.i,.'1]1tS::.i ei il' •e titei' `I^`11 Vet tilt.•w Riv u1 .Z'1 hit t-i dat.( r Sun,gCoat' iit•o 'a`ti'd5fd'otiori Ira VlV.A;q'ELt'QT.it T,):T:YI?UN TI'OL S s=xildt a411 .Wti . n s . .,•p li' r oak a scoioInd-6Ct C (1N$=`=?rididatof tla.tivotla`dfiin ttorls.t r dr-.\vatCC' Un 1 ••"..:^.:;::':':'-'.' a R R 1•Does the wetland unit have the potential to improve water quality? see p.52)oodiftg.and='strbain erbsiori .:t,:''::•:.; "" .::.. :. • R3.Does the wetland unit have the potential to reduce flooding and erosion? (see p.54) It 1.1 Area of surface depressions within the rivcrinc wetland that can trap sediments FigureR R R3.1 Characteristics of the overbank storage tho unit provides:Figure_ during a flooding event Estimate the average width of the wetland unit perpendicidar to the direction of the Depressions cover>3/4 area of wetland points=8 flow and the width ofthe stream or river channel(distance between banks). Calculate Depressions cover>1/2 area of wetland points=4 the ratio:(average width ofrnnit)/(average width of stream between banks). If depressions>%of area of unit draw polygons on aerial photo or m lithe ratio is more than 20 points=9 Depressions present but cover<1/2 area of wetland of •_ If the ratio is between 10-20 points=6Nodepressionspresentpoints=0 R 1.2 Characteristics of the vegetation in the unit(areas with>9o%cover atpersanhcight):_ _ ' Figure_ If the ratio is 5-<10 rts='IRIftheratio.is 1-<5 Trees or shrubs>2/3 the area of the unit r ante &- • If the ratio is<1 points=1 2....Trees or shrubs>1/3 area of the unit points=6 Aerial photo or map showing average widths Ungrazed,herbaceous plants>2/3 area of unit points=6 R.3.2 Characteristics ofvegetation that slow down water velocities during floods:Treat Figure Ungrazed herbaceous plants>1/3 area of unit points=3 R large woody debris as'forest or shrub". Choose the points appropriate for the best Trees,shrubs,and ungtazed herbaceous<1/3 area of unit points=0 description.(polygons need to have>90%cover atpersonhcightNOT Cowardin classes: Aerial photo or map showing polygons of different vegetation types Forest or shrub for>1/3 area OR herbaceous plants>2/3 area somts= R Add the points in the boxes above I d p I Forest or shrub for>1/10 area ORherbaceous plants>1/3 area points=4 R. RImprove-waterDoesthewetlandunithavetheopportunitytolmproveater quality?see p.5 Vegetation does not meet above criteria points=03) 7 Answer YES if you know or believe there are pollutants in groundwater or surface water Aerial photo or map showing polygons of different vegetation typos conning into the wetland that would otherwise reduce water quality in streams,lakes or R Add the points in the boxes above i C` I groundwater downgredient from the wetland?Note which of the following conditions R 12 4.Does the wetland unithave the opportunity to reduce flooding and erosion? (see p.57) provide the sources ofpollutants.A unit may have pollutants coming from several Answer YES if the unit is in a location in the watershed where the flood storage,or sources,but any single source would quai fy as opportunity, reduction in water velocity,it provides helps protect downstream property and aquatic 1Untreated stoe wetland•dischargesorwithin 150ft5 wetland resources from flooding or excessive and/or erosive flows.Note which ofthe following conditio s apply. Tilled fields or orchards within 150 feet of wetland Thcre are human structures and activities downstream(roads,buildings,bridges, A stream or culvert discharges into wetland that drains developed areas, farms)that can be damaged by flooding. Rsldential areas,farmed fields,roads,-or clear-cut logging There are natural resources downstream(e.g.salmon redds)that can be damaged esidential,urban areas,golf courses are within 150 ft of wetland by flooding The river or stream linked to the wetland has a contributing basin where human Other multiplier activities have raised levels of sediment,toxic compounds or nutrients in the river Answer NO lithe major source ofwater to the wetland is controlled bye reservoir or the water above standards for water quality multiplier wetland Is tt t a on the sides ofa dike) 2 Other Z YES rkiltiplieris 'NO multiplier isl YES millIEW NO multiplier is 1 R TOTAL-Hydrologic Functions Multiply the score from R 3 by R 4 / g-- IRTOTAL-Water Quality Functions Multiply the score from R 1 by R 2 7,Add score to table on p.1 I Add score to table on p.1 ICJ Comments Comments Wetland Rating Form—wcslen=Washington 7 August2004 Wetland Rating Form—western Washington 8 August2004 • version 2 Updated with new WDF\V definitions Oct 2003 version 2 Updated wins new WDF\V definitions Oct 2008 c Wetland name or number Wetland name or number r;.*.':.r:' =r-v-rt. H1.4.Interspersion of habitats(seep.76) Figure_ i JC.OII1tS? 'T/tese.gtieslcOlts'applyaO,M1f d7dl s:ofRld?73 G1V1' Itt szo<o; Decide from the diagrams below whether interspersion between Cowardinvegctntion HA BITiaI`U2NCTTONS Indicators thatuntt funct oiis lo3itavide important habitat' :,:. ,..•inrbow. classes(described in H 1.1),or the classes and unvegetated areas(can include open water or mudflats)is high medium,low,or none. H 1.Does the-wetland emit have the potential to provide habitat for many species? H 1.1 Vegetation structure(seep.72) Flgure_ Check the types of vegetation classes present(as defined by Cowardin)-Size thresholdfor each g ` . class is M acre or more than 10%ofthe area if unit is smaller than 2.5 acres. O O i tGr;:; Aquatic bed Eyrergentplants None=0points Low=lper Moderate=2 points Sc b/shrub(areas where shrubs have>30%cover) 1_1 `pp-sy{- orested(areas where trees have>30%cover) °511 If the unit has a forested class checktf.• • r.:''' The forested class has 3 out of 5 strata cane sub-cane 1' canopy,sub-canopy,shnibs,herbaceous, p•; s")..; . moss/ground-cover)that each cover 20%within the forested polygon y" r, Add the number ofvegetation structures that qualify. Ifyou have: ct: 4 structures or more paints=4 I_:. Map of Cowatdin vegetation classes 3 structures points=2 s1 2 structures points=1 riparian braided 1 structure points 0 3 points channels] High P H 1.2.jivdroperiods(seep.73) Flgure,NOTE:If you have four or snore classes orthree vegetation classes and open water \ Check the types ofwater regimes(hydroperiods)present within the wetland The water the rating is always"high". Use map of Cowardln vegetation classes regime has,to cover more than 10%ofthe wetland or t/ acre to count.(see text for H 1,5.Special Habitat Features:(seep.77J descriptions ofhydroperlods) Check the habitat features that are present in the wetland The number ofcheeks is the Permanently flooded or inundated 4 or more types present points=3 Jrmmber ofpoints you put into the next column. Seasonally flooded or inundated 3 types present points=2 . VLarge,downed,woody debris within the wetland(>4in.diameter and 6 ft long). Occasionally flooded or inundated 2 types present point=1 Standing snags(diameter at the bottom>4 inches)in the wetland Sahuated only 1 type present points=0 ,_ Undercut banks arc present for at least 6.6 ft(2m)and/or overhanging vegetation extends at Permanently flowing stream arrives in,or adjacent to,the wetland least 3 3 ft(lot)over a stream(or ditch)in,or contiguous with the unit,for at least 33 ft Seasonally flowing stream in,or adjaeeatto,the wetland 10m) Lake fringe wetland=2 points 1 Stable steep banks of fine material that might be used by beaver or muskrat for donning Freshwater tidal ivetlmtd=2points Map of hydropedperiods 30degree slope)OR signs of recent beaver activity are present(cut shrubs or trees that H 1.3.Richness ol'Plant Species(seep.75)have not yet turned grey/brown) Count the number of plant species in the wetland that cover atleast 10 ft2. (different patches At least'A acre of thin-stemmed persistent vegetation or woody branches are present in areas of the same species can be combined to meet the size threshold) that arc permanently or seasonally inundated.(structures for egg-laying by amphibians) You do not have to name the species. invasive plants cover less than 25%of the wetland area in each stratum of plants Do not include Eurasian Mi jail,reed cana grass,purple loosestrfe, Canadian Thistlery 2— If you counted: 19 species points=2 NOTE:The 20%stated in early printings ofthe manual on page 73 is an error. A r r rr List species below Ifyou want to: 5-19 species C s- H 1.TOTAL Score- potential for providing habitat 1 r 5 species Add the,scores front 111.1,H1.2,H1.3,H1.1,HI.5 1 1 M..rrr i Comments 1 Total for page 3 Wetland Rating Form-western'Washington 13 August2004 Wetland Rating Item-western Washington 14 August2004 version2 Updated with new WDF\Vdefinitions Oct.2003 version2 Updated with new WDFW definitions Oct 2008 Wetland name or number Wetland name or number H 2.3 Near or adjacent to other priority habitats listed by WIRW(see new rind complete H 2,Does the wetland unit have the opportunity to provide habitat for many species? descriptions of WDFWpriority habitats,and the counties ire which they can be found,in H2.1Ruffcrs (seep,80) Figure_ the PHSreport btfp://wdfiv.wrr.rov/hab/nlrslis•Lhbrt) Choose the description that best represents condition of buffer ofwetland rail.The highest scoring Which of-the following priority habitats arc within 330ft:(100m)°file wetland unit?NOTE:the criterion that applies to the wetland is to be used in the rating.See teat for definition of connectionss n.Stands: do not have or to be standsely f aspen undisturbed undisturbed." Aspen Pure mixed stands of greater than 0.4 ha'(i acre). Biodlverslty Areas and Corridors:Areas ofhabitatihat are relatively important to various 100 m(330ft)of relatively undisturbed vegetated areas,rocky areas,or open water>95% species ofnative fish and wildlife(fill descriptions in WDFWPHS report p.1S2). of circumference. No structures are within the undisturbed part of buffer. (relatively erbaceous Balds:Variable size patches of grass andlforbs on shallow soils over bedrock. undisturbcdtalso means no-grazing,no landscaping,no daily human use) Points=5 Old-growth/Mature forests:(Old-growth west of Cascade crest)Stands of at least 2 tree 100 m(330 i't)of relatively undisturbed vegetated areas,rocky areas,or open water> species,forming a multi-layered canopy with occasional small openings;with tit least20 50% circumference. Points=4 trees/ha(8 trees/acre)>81 era(32 in)dbh or>200 years of age. (Mature forests) Stands 50 m(170ft)of relatively undisturbed vegetated areas,rocky areas,or open water>95%with average diameters exceeding 53 cm(21 in)dbh;crown cover may be less that 100%; circumference. Points=4 crown cover may be less that 100%;decay,decadence,numbers of snags,and quantity of L _. 100 in(330f1)of relatively undisturbed vegetated areas,rocky areas,or open water>25% largo downed material is generally less than that found in old-growth;80-200 years old circumference,. Points 3 west of the Cascade crest. 50 in(170ft)ofrelativelyundisturbed vegetated areas,rocky areas,or open water for> Oregonwhite Oak:Woodlands Stands of pure oak or oak/conifer associations where 50%circu ndereneo. Points=3 canopy coverage of the oak component is important(elt descriptions to IYDFii%PHS If buffer does not meet any of the criteria above jeepport p.158). No paved areas(except paved trails)or buildings within 25 m(80ft)of wetland>95% riparian:The area adjacent to aquatic systems with flowing water that containsreloments of circumference.Light to moderato grazing,or lawns are OK.. . Paints=2 both aquatic and terrestrial ecosystems which mutually influence each other. No paved areas or buildings within 50m of wetland for>50%circumference. Westslde Prairies: Herbaceous,non-forested plant communities that can either take the Lightio mollerate grazing,or lawns are O1i. 1 form of a dry prairie or a wet prairie(fill descriptions in WDFIYPHS report p..161). Heavy grazing in buffer. Points=1 Instream:The combination of physical,biological,anll chemical processes and conditions Vegetated buffers are<2m wide(6.6ft)for more than 95%of the circumference(e.g.tilled that interact to provide functional life history requirements for instream fish and wildlife fields,paving,basalt bedrock extend to edge of wetland Points=0. 7 resources. Buffer doesmotmeet any of the criteria above.Points=1 2- Nearshore:Relatively undisturbed nearshore habitats.These include Coastal Nearshore, Aerial photo showing buffers Open Coast Nearshore,and Puget Sound Nearshore.yid/descriptions of habitats and the H 2.2 Corridors and Connections(seep.81) definition ofrelatively undisturbed are in WDFW report:pp.167-169 and glossary in I•I 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor Appendix A). either riparian or upland)that is at least 150 ft wide,has at least 30%cover of shrubs,forest Caves:A naturally occurring cavity,recess,void,or system of interconnected passages under or native undisturbed prairie,that connects to estuaries,other wetlands or undisturbed the earth in soils,rock,ice,or other geological formations and is large enough to contain a uplands that are at least 250 acres in size? (dams in riparian corridors,heavily used gravel . human. roads,paved reads,are considered breaks in the corridor). Cliffs:Greater than 7.6 in(25 ft)high and occurring below 5000 ft. YES=4 points (go to H2.3) O=go to 2.2 Talus:Homogenous areas°frock rubble ranging in average size 0.15-2.0 m(0.5-6.5 ft), H 2.2.21s the wetland part of a relatively undisturbed and rolcarFegotated corridor composed of basalt,andesite,and/or sedimentary root.;including riprap slides and mine either riparian or upland)that is at least 50ftwide,has at least 30%cover of shrubs or tailings.May bo associated with cliffs. forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 Snags and Logs: Trees arc considered snags if they are dead or dying and exhibit sufficient acres in sizo?tOR a Lake-fringe wetland,if it does nothavo an undisturbed corridor as in decay characteristics to enable cavity excavation/uselby wildlife.Priority snags have a the question above? diameter at breast height of>51 cm(20 in)in western Washington and are>gum(6.5 ft)in YES=2 points (go to H 2.3) NO=H 2.2.3 height.Priority logs are>30 cm(12 in)in diameter tit the largest end,and>61n(20 ft) H 2.2.3 Is the wetland: long. within'mi(81cm)of a brackish or salt water estuary OR If wetland has 3 or more priority habitats=4 paints within 5 mi of a large field or pasture(>40 acres)OR I If wetland has 2 priority habitats=3 points within ll mi o akp greater than 20 acres? If wetland has 1 priority habitat=1 point No habitats=0 points 1 p- 1 NO=0 points Note:All vegetated wetlands are by definition a priori,y habitat but are not included in this 3list.Nearby wetlands are addressed in question H2t1) Total for page 3 Wetland Rating Form-western Washington 15 August2004 Wetland Rating Form--western Washington 16 August2004 version 2 Updated with new WDFW definitions Oct.2008 version 2 Updated with now WDFW definitions Oct.2008 Wetland name or number Wetland name or number 6.CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS H 2.4 Wetland L.andsoane(choose the one description of the landscape around the wetland that best fits)(see p.84) There are at least 3 other wetlands within%mile,and the connection's between them are Please determine if the wetland meets the attributes described below and circle the relatively undisturbed(light grazing between wetlands OK,as.is lake shore with some appropriate answers and Category. boating,but connections should NOT be bisected by paved roads,lfill,fields,or other development. points=5 wCtl Category The wetland is Lake-fringe on a lake with little disturbance and them are 3 other lake-fringe allCl•.3E. wetlands-within'h.mile points=5 Check off any.criteriathat apply.to the wetland. Circle the Category.whets the There era at least other wetlands within!Amile,BUT the connections between them ar appropriate'criteria are.mel. disturbed dgcli›' SC 1.0 Estuarine wetlands(seep.80 The wetland is Lake-fringe on a lake with disturbance and there are:3 other lake-fringe Does the wetland unit meet the following criteria for Estuarine wetlands? wetland within%smile points=3 The dominant water regime is tidal, There is at least 1 wetland within Va mile. . points=2 There are no wetlands within'/s mile, points=0 Vegetated,and 3 With a salinity greater than 0.5 ppt. H2.TOTAL Score- opportunity for providing habitat I I YES= Go to SC 1.1 NO— Add the scores from f 2.1,H2.2,H2.3,H2.4 I I l SC 1.1 Is the wetland unit within aNational Wildlife Refuge,National Park, TOTAL forth 1 from page 14 t National Estuary Reserve,Natural Area Preserve,State Park or Educational, Cat.I Environmental,or Scientific Reserve designated under WAC 332-30-151? Total Score for Habitat Functions-addt the points for H 1,H 2:and record the result on YES=Category I NO go to SC 1.2 P.1 /SC 1.2 Is the wetland unit at least 1 acre in size and meets at least two of the following three conditions? YES=Category I NO=Category II Cat.I The wetland is relatively undisturbed(has no diking,ditching,filling, Cat.II cultivation,grazing,and-has less than 10%cover of non-native plant species. If the non-native Spartina spp,are the only species that cover more than 10%of the wetland, then the wetland should be given a dual Dual rating gin). The area of Spartina would be rated a Category II while the rating relatively undisturbed upper marsh with native species would be a I/II Category I. Do not,however,exclude the area of Spartina in determining the size threshold of 1 acre. At least%of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or un-grazed or un-mowed grassland. ' The wetland has at least 2 of the following features:tidal channels, depressions with open water,or contiguous freshwater wetlands. Wetland Rating Farm-western Washington 17 August2004 Wetland Rating Parer-westcmWsahingtost 18 August2004 version 2 Updated with new 1VDPW dcfiaitions Oct.2008 version 2 Updated with now WDPW definitions Oct 2008 CONSULTING ENGINEERS t caY133400hAvenuudi,S ite205 Way,WA 2:. 0 d MEMORANDUM TO: MS. ROCALE TIMMONS, CITY OF RENTON FROM: EVAN MANN SUBJECT: PIPER'S BLUFF ENVIRONMENTAL CHECKLIST SUPPLEMENT JOB NO: 265-045-013 DATE: MAY 29, 2014 The Piper's Bluff project included a SEPA review and an Environmental Review Committee Meeting that was held on October 8, 2012. With some minor adjustments,the project was issued a Determination of Non-Significance - Mitigated. However, from that time to now there have been two design changes to the plat that have created additional impacts to the wetlands and stream in the northeast corner of the property. As such, we are providing this SEPA Supplement to address the additional impacts to those critical areas. The plan is for mitigating temporary impacts to critical areas and associated buffers in the northeast portion of the subject property due to water line construction and stormwater damage. The project area is located in 1166 Hoquiam Ave NE, Renton WA, King County parcel number 1023059002). Water Main Extension Impacts and Mitigation The development area will gain access to the municipal water system through a connection along Hoquiam Ave NE, which will not affect Honey Creek or its buffer. However, Water District 90 has required the applicant to run a water line "stub" form the development project to the east property boundary to allow for future municipal water access to parcels east of the project Impacts from the water line will be temporary, but will involve clearing vegetation, excavating soil, and installing a sub-grade 8" water line and metal casing at a depth of between 3 and 5 feet through Honey Creek (a Class 4 stream), an adjacent Category 2 wetland located on either side of the stream, and the associated standard buffer measured 50 feet from the edge of the wetland. No permanent, above-ground structures will be placed within the critical areas or critical areas buffers. Overall the proposed temporary impacts associated with the water main are as follows: Wetland/ Stream - 969 SF Wetland A- 424 SF Honey Creek- 113 SF Total Impact Area - 1,506 SF Civil Engineering • Land Surveying • Project Management• Public Works• LandRa mi q,Earidja .1i.. ic e Phone 253.838.6113 800.345-5694 Fax 253.838.71,Q4 Y 2014 MAY " PLANNING DIVISION Stormwater Damage Impacts and Mitigation During construction of the storm system for the plat in the spring of 2014 there was a large rain event. During this event there were additional impacts to the wetland/stream/buffer corridor in the northeast corner of the site. The impacts were reviewed, and the City/City's Consultant recommended that the project improve the entire wetland/stream/buffer corridor on the site. These improvements include additional plantings that will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. This will also include removal of invasive vegetative species from the stream, wetland, and associated buffers. The revised plan includes restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. The areas that will be improved and restored per the City recommendations are as follows: Wetland/Stream Buffer— 2,290 SF Wetland — 869 SF Total Improved Area — 3,159 SF Combined, the Water Main Extension and Stormwater Damage Restoration Areas equal an area of 4,665 SF. The existing monitoring plan outlined in the Wetland & Creek Restoration Plan for the original impacts associated with the Water Main Extension will also be applied to the Stormwater Damage Mitigation areas. This will ensure that the entire restoration/mitigation area in monitored twice a year for 5 years. For additional detail of the impacts and proposed mitigation associated with this project please refer to the "Plat of Pipers Bluff — Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. esm8\engr\esm jobs\258\045\013\document\memo-008.doc 2 r , IW'!q IIIgIIIII ggmMmaH,„ I:l Sewall Wetland Consulting, Inc. PO Box 880 Phones 253-859-051.5 Fall City,WA 98024 May 21, 2014 Rob Risinger Conner Homes 846 108th Ave Ne, Bellevue, WA 98004 Re: Piper's Bluff—Technical Memorandum Response SWC Job#12-135 City of Renton File LUA13-001568 Dear Rob, This letter is in response to the April, 9, 2014 Technical memorandum by OTAK regarding the Pipers Bluff Project. The following recommendations were identified by OTAK; Recommendation: We recommend that the applicant provide a compensatory mitigation plan for the above impacts associated with the vault failure. The compensatory mitigation plan should be designed to improve the entire wetland/stream/buffer corridor on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation, and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. We also recommend removal of invasive vegetative species from the stream, wetland, and associated buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan used for construction impacts to critical areas as well as stream impacts resultingfrom the water line installation. These elements have been incorporated in the attached"Plat of Pipers Bluff— Supplemental Critical Areas Restoration Plan" dated 5/19/14 by Sewall Wetland Consulting, Inc. Recommendation: The restoration planting plan should be revised to present a larger footprint for restoration. The revised plan should include restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. Due to the proximity of the stormwater vault ouproposedalllandthe risk ofstormwater scourin p e,Si -,, disturbances to the ro osed restoration plantings as well % e b e ,; irk we MAY 2 9 2014 MA CITY OF RENC PLANNING DIVISION Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. May 21, 2014 Page 2 of 3 recommend that the existing monitoring plan outlined in the Wetland&Creek Restoration Plan would also be applied to this area. These elements have been incorporated in the attached"Plat ofPipers Bluff—Supplemental Critical Areas Restoration Plan"dated 5/19/14 by Sewall Wetland Consulting, Inc. Recommendation:It is our recommendation that the latter monitoring schedule monitoring twice per year for five years)be followed due to the possible impact from the proposed outfall and the existing impact from the facility failure. Per the Wetland& Creek Restoration Plan, monitoring should occur once in the spring and late summer/fall.Additional monitoring data should be identified and collected as components of a revised monitoring plan, to include assessment of erosion, scour, and/or deposition offines in the wetland, stream, and buffer areas particularly those areas associated with the stormwater facility outfall. Due to the recommended increase in the restoration and mitigation planting area, the monitoring plan should be revised to include additional monitoring transects. These elements have been incorporated in the attached"Plat ofPipers Bluff—Supplemental Critical Areas Restoration Plan"dated 5/19/14 by Sewall Wetland Consulting, Inc. Recommendation:A mitigation narrative per the requirements in RMC 4-8-120 should be submitted with the revised mitigation plan noted in Comment 2. The proposed supplemental mitigation plan addresses the restoration needs of the stream and buffer area that was impacted by the previous failure of the vault. The areas of the buffer that were impacted have been depicted densely planted with native tree and shrub species. In addition, live willow and dogwood stakes have been utilized in the wetland area to restore a scrub-shrub community within this area. This will compensate for the mix of native shrubs and blackberry that were removed and disturbed during the vault failure. The proposed restoration plan as well as the original mitigation plan will now be monitored twice a year for 5 years as requested. If you have any questions or need any additional information please contact me at(253) 859-0515 or by email at esewall@sewallwc.com. Sincerely, Sewall Wetland Consulting, Inc. PC--,,,,e,"". Ed Sewall Senior Wetland Ecologist PWS#212 Piper's Bluff/#12-135 Sewall Wetland Consulting, Inc. May 21, 2014 Page 3 of 3 Above:Looking south at buffer from center of mitigation site. I A " PeterO'Kane. i j Page 2 of.2, i I At ,this time, your•.project will 'remain "on hold" pending='receipt'-o'f.the.requested information Please;contact m'e at('425),430-7219 if:you,have:any questions, i Sincere) i. R ,'ale"Timmbn's Senior.Planner i cc: Oinrner(s): Applicant `, , ' • i Party(ies);ofRecord' i I I: y, Denis Law City Of - r.i QomN7 " April 10,2014 Department of Comm_unity and.Economic Development. " C:E."Chip"Vincent,Administrator E Peter. O.%Kane' ' _ . - WestPac Development, LLC 7449 West-.Mercer Way: , - Mercer Island, WA 98040. . SUBJECT: "On-.Hold" Notice-:Continued Piper'-s Bluff.Critical Area Variance,:LUA13=001'568,VAR Dear.Mr. O'Kane: ., The Planning Division of the City of Renton accepted the above master_application for , review on December 17, 2013„ During our.review,.staff d-etermined•that additional -' information was necessary in order:to'proceed further:;On January 13, 2014-the.project: was placed on`hold pending. receipt:of an Independent. Secondary•Review of the : provided Critical:Area. Report.'& Supplemental Stream;Study:along with,a_Supplemental• ' , Environmental Checklist. To date an Independent Secondary. Review of your.provided submittal'•materials'was completed by Otak; Inc. Based ona•.site assessment-and review•of your-submittals-Otak ha s provided a Technical• -.Memorandum. (attached), dated .April 9, 2014: •The memo'. •. contains a:number of recommendations.and requirements needed order-to_meet_the- City code for critical areas.and .cr'itical area.variances: . In order to proceed With the processing of the"subject application all comments and recommendations, contained.in the attached memo, would be required to be addressed-and subsequently reviewed and approved. The following information will need to be:submitted before July 10, 2014'so that we '• . - may continue the'review of the above subject application: Revised Critical„Area Variance Request Documentation": Please-provide.-5 copies . - of': revised. :critical area variance request documentation addressing: all. , recommendations found•in'the Otak Menlo, dated."April;9, 2014. The-revised: documentation is subject to- additional analysis.,by an independent qualified. - professional. This additional analysis •shall also be' paid at: the applicant's • -• - expense.• Supplemental _Environmental-Checklist: Please' also -provide 5 copies `.of an updated`Environmental Checklist describing proposed water main extension,and. proposed critical'area impacts and:mitigation. Renton City Hall • 1055 South Grady Way.• Renton,Washington.98057. • rentonwa.gbv • • - 1 . Peter O'Kane Page 2 of 2 At this time,:your, project will remain. "on hold" pending receipt of the requested information. Please contact me at (425) 430-7219 if-you have any questions. Sincerely,' Y' R; ale"Timmons Senior Planner cc Owner(s)• Applicant Party(ies)of Record Technical Memorandum o a To: Rocale Timmons, Senior Planner City,of Renton 10230 NE Points Drive From: Jessica Redman,Wetland Scientist Suite 400 Kevin O'Brien,Senior Ecologist Kirkland, IVA 98033 Phone(425)8221116 Fax(425)827-9577 Copies: File Date: April-9,2014 . Subject: Piper's Bluff Critical Area Variance Request Review Project No.: 32385.B This review pertains to a request for a critical area variance for activities within critical areas and critical area buffers (City of Renton LUA13-001568) submitted by the applicant,WestPac Homes LLC,to the City of Renton (City).The critical area variance is for installation of an 8-inch water pipe, contained within a 16-inch steel sleeve,beneath Honey Creek an associated riparian wetland, and buffers for the stream and the wetland. Installation of the water pipe is a required component of the 30-lot subdivision with associated access road and storm water facility on the Piper's Bluff site. The following documents were reviewed in terms of compliance with the critical areas sections of the City code: Pipers Bluff City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc., dated August 15,2012; Pipers Bluff Plat—Revised City of Renton Critical Area Report&Supplemental Stream Study, prepared by Sewall Wetland Consulting,Inc., dated April 15, 2013; Piper's Bluf/#12-135 Water Main CrossingJustification Memorandum, prepared by Sewall Wetland Consulting,Inc., dated December 4,2013; Piper's Bluff Wetland&Creek Restoration Plan (Sheets 1 through 5) prepared by The Watershed Company,and dated July 31,2013; The Critical Area Report (CAR) and Supplemental Stream Study (SSS) identify an on-site Category 2 wetland per the City of Renton Municipal Code (RMC), and a Class 4 stream—also per the RMC— associated with the wetland. The Water Main Justification Memo outlines the rationale for meeting the of f Rocale Timmons, Senior Planner, City of Renton Page 2 Piper's Bluff Critical Areas Variance Review April9,2014 City's criteria for changes to a wetland for a non-exempt activity,as well as the City's criteria for crossing of a stream and its buffer. All impacts to the wetland, stream,and buffers,regarding the water main crossing,would be temporary in nature. The Wetland&Creek Restoration Plan is designed to mitigate for the vegetation removal resulting from the project,through enhancement planting. The planting plan is expected to restore functions to the impacted area. Otak biologists visited the site on February 27,2014, to evaluate demonstration of compliance with RMC Critical Areas Regulations, evaluate the effectiveness of proposed mitigation, and provide alternative mitigation measure for proposed impacts if necessary. An Otak biologist made an additional site visit on March 30, 2014. Summary: In order to meet City code and requirements for critical areas and critical area variances, a number of recommendations and requirements are outlined below. Should the following recommendations be accepted by the City,included in the applicant's critical areas variance request documentation,and subsequently reviewed and approved, the proposed activities appear to meet the criteria for a City of Renton critical areas variance. Comment 1 No wetland flags were present on the date of our site visit, and wetland delineation confirmation was not possible given construction activities and site disturbance that had already occurred. However,using the plan set from the Wetland and Stream Restoration Plan,along with field observations,we do not believe inaccuracy of the wetland delineation to be of concern. We also agree that the wetland meets the criteria for a Category 2 wetland under RMC 4-3-050(M),and the stream appears to be a Class 4 (non-salmonid bearing,intermittent hydrologic regime) system per RMC 4-3-050(L). Recommendation: None Comment 2 Sometime between Otak's initial and second site visits, the vault facility failed,subsequently releasing substantial amounts of fine sediment from the stormwater vault into the wetland and stream system and their buffers, along with scour and downcutting at the vault discharge point (see Photos 1 and 2). Following the vault facility failure, fine sediment was noted in the stream and surrounding riparian habitat(Photo 3),and substantial infilling of a downstream pond by fine sediment was reported by a nearby landowner (Nonis,Jim) during the March 30 site visit (Photo 4). Such adverse impacts to the wetland, stream,and buffer warrant compensatory mitigation. Otak Rocale Timmons, Senior Planner, City of Renton Page 3 Piper's Bluff Critical Areas Variance Review April 9,2014 Recommendation: We recommend that the applicant provide a compensatory mitigation plan for the above impacts associated with the vault failure. The compensatory mitigation plan should be designed to improve the entire wetland/stream/buffer corridor on the site. Additional plantings beyond the previously identified planting corridor will provide habitat, slope stability mitigation,and potential for water quality improvements for the sediment release and erosion that have occurred in and near the wetland and stream. We also recommend removal of invasive vegetative species from the stream,wetland, and associated buffers. These compensatory mitigation elements may be shown on the same mitigation/restoration plan used for construction impacts to critical areas as well as stream impacts resulting from the water line installation. Comment 3 The area impacted by vegetation removal in the wetland, stream, and associated buffer is larger than depicted on the Wetland&Creek Restoration Plan. Site visits.confirmed that the area from which vegetation has been removed is larger than the 15-foot-wide replanting corridor depicted in the Restoration Plan. Recommendation: The restoration planting plan should be revised to present a larger footprint for restoration. The revised plan should include restoration plantings in areas of general construction disturbance as well as restoration plantings for the installation and stabilization of the stormwater outflow and its flow path. Due to the proximity of the stormwater vault outfall and the risk of stormwater scouring out or otherwise imposing disturbances to the proposed restoration plantings as well as the nearby vegetation,we recommend that the existing monitoring plan outlined in the Wetland&Creek Restoration Plan would also be applied to this area. Comment 4 According to the Water Main Crossing Justification Memo,the restored wetland, stream,and buffer will be monitored four times in Year 1,and once a year for five years as required by Code. However,the Wetland&Creek Restoration Plan states monitoring should take place twice annually for five years. Recommendation: It is our recommendation that the latter monitoring schedule (monitoring twice per year for five years) be followed due to the possible impact from the proposed outfall and the existing impact from the facility failure. Per the Wetland&Creek Restoration Plan,monitoring should occur once in the spring and late summer/fall. Additional monitoring data should be identified and collected as components of a revised monitoring plan,to include assessment of erosion, scour, and/or deposition of fines in the wetland, stream,and buffer areas—particularly those areas associated with the stormwater facility outfall. Due to the recommended increase in the restoration and mitigation planting area, the monitoring plan should be revised to include additional monitoring transects. Otak Rocale Timmons, Senior Planner, City of Renton Page 4 Piper's BlufCritical Areas Variance Review April 9,2014 The Water Main Crossing Justification Memo should be revised for consistency with the recommended monitoring schedule, and Wetland&Creek Restoration Plan should be revised to include additional transects and collection of erosion and sediment deposition data. r Comment 5 The stormwater facility outfall is located within the stream and,wetland buffer habitat,and stormwater form the outfall will discharge into the stream and its associated wetland. This has relevance to the proposed variance for the water line,because the discharge point is within the buffer for the streamside wetland as well as the buffer for the stream. Higher discharge flows for longer durations than currently exist for this location have the potential to cause erosion,deliver sediment into the stream,increase flow within the stream system,and affect the proposed restoration plantings associated with the water line crossing. None of these potential impacts were evaluated in any of the Sewall documents. Recommendation: Based on a conversation with City engineering staff(Lee,Steve) during March 2014,it is our understanding that the applicant and the City are negotiating a stormwater facility retrofit design to address the facility failure. Although the applicant conducted analysis of the original stormwater vault-using the King County Runoff Time Series Model per City of Renton Code,we recommend re-analysis of the proposed stormwater vault retrofit capacity and associated metrics (discharge duration and peak flow discharges) using an additional model such,as MGS Flood or WWHM. An Otak engineer conducted an analysis of the original stormwater vault facility using MGS Flood, and noted that this model indicated that the flow duration performance criteria,per Washington Department of Ecology,were not met for the facility(see attached). Operation of the proposed retrofit stormwater facility and discharge quantities—particularly peak flow discharges and flow frequencies—may potentially affect the plantings within the restoration and mitigation areas. In addition,we recommend reevaluation of the potential changes in functional value.of the wetland and stream due to the outfall and detention of the retrofit design for the stormwater facility. Results should be included in the CAR and SSS as well as be considered in mitigation design. Comment 6 RMC 4-3-050.L.3.b requires the applicant to conduct a supplemental stream study(SSS) if alterations to a water body and its associated buffer are proposed. Per RMC 4-8-20 the SSS must include a stream assessment, analysis of alternatives,impact evaluation, and mitigation proposal. The current SSS provides limited functional analysis of the stream, and provides no information on alternatives or mitigation. Otak r 4 Rocale Timmons, Senior Planner, City ofRenton Page 5 Piper's Bluff Critical Areas Variance Review April 9,2014 Recommendation: The revised mitigation plan mentioned in the Comment 2 should include a complete SSS per RMC 4-8-20 requirements,and take into consideration the stormwater facility retrofit design,outfall/discharge structure,proposed energy dissipation, and other relevant detail. Comment 7 The Water Main Justification Memo,page 4,part f, explains that the Wetland&Creek Restoration Plan meets the mitigation criteria of subsection L3c(ii). However,it does not fulfill the requirement per RMC 4-3-050-L3c,which states that the stream mitigation plan per RMC 4-8-120'requires a mitigation narrative including specific requirements. No mitigation narrative was submitted with the Wetland&Creek Restoration Plan and therefore the water main is not fully justified. Recommendation: A mitigation narrative per the requirements in RMC 4-8-120 should be submitted with the revised mitigation plan noted in Comment 2_ 1 Comment 8 Based on field observations after the vault failure,wetland and stream protection was limited to minimal silt fencing at the outlet to the failed vault (Photo 5). Recommendation:Additional silt fencing and/or other temporary sediment and erosion control BMPs should be installed to protect the wetland and stream from further impacts from the large amount of sediment released during the vault failure;and to prevent further impacts, should failure occur again. Comment 9 In the Water Main Crossing Justification Memo,page 2,part c, the first sentence, "The proposed restoration includes the replacement of topsoil within the excavated sewer line" should be amended to "...water line..." Please feel free to call Jessica at (425)739-7978 or Kevin at (425) 739-7975 if we can answer any questions regarding our comments and recommendations. N Otak a Page 6RocaleTimmons, Senior Planner, City of Renton Piper's Bluff Critical Areas Variance Review April 9,2014 a q. x :. c, € .tm v x.- of t"2 , g*i 1,-/f- , r, g`5 '-4. b'(„"'*'?.s !' 2 y s`= f r ' r. . .° .3''`}' f:'8S*.z+,..'`". 1 j srt sx. ' ra= 33 z ' r. q -,., a t .7''''` ;i.,gy ^ 1 ik `3 . wCFz a. ,t'i, . k!''z' N','-'^ z'M t'' ,a y '.* xN 4;!y.,,t,. c_,. a£ .. r- s t,x 7 to ...4.x,f P fir<," r-' 4. a';.5 c hr y '' ° R'"-xiz G"xt -": ,r :§ t 4 t a. 3. Y .' ' i ti ....: t r } Y 't yam `•. ,.7 f.r ,-.. f a.,-,- 1 •,,. 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[s'....^"..7'"' •....P Photo 1—Outfall(in foreground) to stormwater facility(concrete structure in background) on March 30, 2014 subsequent to failure.Note erosion and fine sediment deposition. Otak Q Rocale Timmons, Senior Planner, City of Renton Page 8 Piper' BluffCritical AreasVariance Review April9, 20 94 a I'll?'tea,eg• :1s* -r;x- 'p er'T • ...;:r-k.sq,, ,,,,.f,_.. . °°7, 7,F G a / Y,.,.-' 3'- ."i! ;,:, ..,.,' la -t'qf. :r .i t"`+.f r I- ,.. 4, i.,` ti t o.r S ty sa fir. k'•,....-_ g ,. 5 a is"i iq..•, 2,;.' fwr ",na :. }w 31'.. - • a 3r Km 1 '' Ir.' j,F.. `1 •S i::xtS,,,, ,,.-,, ' r c A ,'"": , h 1 i Sr Szl i t} 4 lye' , F+Y'..'.'' v' t"•,i I ..z ,. i.1 i y,.,r 1,.;, x f' is 4, Y i • b''•t' ,$ I-J,' 1" a!"A t ",; + S, L ' ' i{' Y-. s ao " Ti" '' b3 j y i a d:` ' S' t 1n,r' `;'4..r.3• i met V. w tt,,n'_ `,_ ntt R`bi } t t• d: t d p 1= s5+r 5 a X r t:4iyv. 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Although fine sediment was present in the system on the February 27,2014 site visit, quantities appeared greater during the March visit. otak Rocale Timmons, Senior Planner, City ofRenton Page 9 Piper's Bluff Critical Area Variance Review April 9,2014 f x{ ' xiv.y t'y (t r -+' t-ly K 4.Z, d d •, ix ' F"',+i:r , ! t v 57 tt.:•f Serf-g BLS h e t T• b jP, 4 ' E L . ,,.f,7` st * a' n fit* y z i. 416 Ff 9 I r i h >,ems, Ott A,,ny y y_1 a: I -, '-- 3 J P € y a ,+ ' } P ' T o4"` 7'f z if S I 7 "•}', r 1 77 a r: fi ' `„ 31 " r S, Pi ' F,f s Laa a e thrq`,h.t-- 4 . x dt}'{ 'a`s '' I' l i r, 'f rt• b'S>< .a ,z:.•a,. 7 e,,. 1 ,:. tt' !A` # ',.7"''"' ,Sj"',.ii a `.' e' , R' f «Ij* ...emu' - h ((( t h tr KEY 3.e t: s,.{ k o .;may ;j;//' .,E Y" a•'. t tl':,, {' x h' Yd` r', y ,, 4. ,,„,,,' , 0 M' U"rS ''3 11EiF d. . 1 7 _ r s• s4 0if. i rtci a s r u a y ,w•n_ Pt y' k R s P T y: r tft ' u-' 53. 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Property owner indicated that sediment loading into pond had been occurring during construction of Pipers Bluff, with a large sediment load deposited immediately subsequent to the stormwater facility failure. ota • I Roc-- Timmons,Senior Planner, City ofRenton Page 10 Piper'c BluffCriticalArear'Variance Review Aji::::2094 F;x x.£, sY f.3rz et ,E ti i + ' .TT w.a,,"'.°'—r' "'' ... as, .,tL / t i r Nf as i 7 } 3 3 1c A.. a k.i t yx y`"'''r l,4.i? a't.- .} 2 ' ,r c rF ti 9 ' 4" . S7 -y ,. „ 1, y:'•e. „-?, s 4Sf..r.° p-.,' ,;L.f -"F, 4{`"e :efs-.fir F t k 6 k+. t .V i f /: za.{ t Y+.." f;-": xf x' % y`,sw'* x r{jy` ` s 8 .. ' .a i / c ,' '. ti j a' ,..,„. _ fix'' r j4;'T -. sr h .' ,:t '..- ma' r f i,.. t .Fy .,ram st U s x L -If,: c'..`" x" ev r k.fir ''"`' w: - f ` ..."' F"k'N-_ -p '' yr- ``Z^Z... IAh' -s.+ * [-!t `..".r-' +c,. ir:. -' ti•'< ' - -z, sib . r Y . 5°` +i sr r Lrtf `%•"w "_'i' u s tea,-' - a j„z„y# ". r < l y,•.. 3.' S/`I ' •-.M. v- fA' r ti 4'S ..-..E -I s " z i `n",>3 +,.- s ' e w y• . . ' i.,...,. z r? xx N, 3 a ...."' r—......,.'r ;v - is f/ ,,_Yu . « : ,r : ,, 4' y SFr r s j ,`M `INS.: F _. L"'d".a^ it Y Y 'S a'i- f t )..Y .I s r' ti 1 c `h :••• f >Y s .+ x x ?" ; .:`- a A,B z,: N 3 r :c ,. ,I y .4 ;,.' r>r'*. i its^-. , ti - * s,; .r: '?„ 3'`Ex'fiti a J t i w, is '4, 'z- ^c.. t 'Cl. '--. .,.i-a ii a'.. q4 _ 4 4 YZ t)tf... x u wn' V C '' . 1 Silt fence associated with the stormwater facility outfall and eroded stormwater flowp •ath out of the facility. Otak Denis Law ity.:so Mayor J I r i January 13-, 2014 Department of Community and-Economic Development : C.E."Chip"Vincent;Administrator.. Peter'.Q'Kane WestPac Development, LLC 7449 West Mercer Way .:. `' • Mercer Island,.WA 98040 SUBJECT: "Ori Hold" Notice Piper's Bluff Critical Area Variance;•LUA13-001568, VAR earD Mr: O'Kane:- The Planning Division of the:City of Renton accepted the above master application for ; _ :• . review on Decemb-er.17, 2013: During our review, staff has determined that additional•. information is necessary in order to proceed further Y.' 1 _ • The following information will need to be'submitted before February 7,:2014 so that-we , may continue the:,review of:the;above-subject application: ind:ependent,Secondary•Review'of Wetland ,Assessment: Please provide 5 copies of. an . evaluation:. by •an independent.qualified professional' regarding. the - • applicant's analysis and the effectiveness of any proposed,mitigating measures •' . - ` or programs, to'include any recommendations as:appropriate:-This shall be paid , at,'the,.applicant's. expense; and theAdministrator,shall- select,the third-party• review p.rofessional:. Supplem ental_Environmentall Checklist: Please provide 5 copies-of an updated Environmental. Checklist 'describing proposed' .water main "extension and: proposed critical area impacts and mitigation - _ , At this time;your project has been _placed "on hold" pending receipt:of the requested • - information. Please contact me at-(425) 430-7219 if.you haye any questions.- Sincerely; R ale:Timmons Senior Planner Applicant Party.(ies)of Record Renton City Halle• 1055 South Grady Way • Renton,Washington 98057 • rentonwa:gov Denis Law _ - _ •- City OfMayor• CtigY 0 January 13, 2014: pepartnient of Communityand Economic Development - - - . - ' C.E."Chip Vincent,Adniinistrator _ - Patrick Blodgett. 5118.NE'12th St Renton,.WA 98059 SUBJECT PIPER'S BLUFF CRITICAL AREA VARIANCE COMMENT.RESPONSE LETTER LUA13-001568, VAR'. Dear Mr:Blodgett , - . - Thank•you for your comments related to the Piper's:Bluff Critical Area Variance.,,"datetr,., December 31, 2013 wherein you raised concerns regarding proposed•p-roject site., - • . While your comments'are:not specific to the proposed Variance I hope the following- -- addresses your questions; . : Half Street Improvements: The northern portion ofthe.loop road._that borders=your r- parcel would-be-improved'to:a-half-street'improvement standard with remainder of the : street:maintaining a 45 foot right".of.way. The proposed internal,street,section was ' _ required.to:be'.designed-to 26 feet of pavement;'with an 8 foot planter strip,.'5 foot sidewalk, and parking side only (south side): s-fo posee):. Primarylaccesr prod Lots 1-• 17 formerly was to be provided via:a proposed 16-foot wide alley,' However,-on July 24, ^ - 2013 a minor modification to the approved,Preliminary Plat was'approved in order to . allow Lots:B-10 to gain access from the internal,public street, as:opposed to the • _. : proposed alley; due to grades`on the site.; ; ; r • ' - . A'second modification was approved, on:October.9, 2013;_in order to;remove,Alley,;A and B and to provide access to Lots 1-17 fromthe new internal loop:road due to a - ' required 15-foot-setback from an existing Puget Sound,'Energy utility easement along the northern border of the property,encroaching:in.to potential building'pads. • . '.. The modifications are no longer under review as^the.appeal periods ended on August7, 2013 and October 23, 2013 respectively. However,"the City is'considering re-issuing the decisions to allow for another appeal period as several parties of record (for the original decision) did:not"received•the subsequent modificati'ondecisions: Erosion Control: City staff understands there havebe.en some issues with respect to Erosion.Control during the construction of the Preliminary Plat. '.The applicant did design a Temporary Erosion"and"Sedimentation Contro(Plan-(TESCP) pursuant,to the 2009.King County Surface Water Design.Manual Erosion:and Sediment Control Requirements: We :'. Renton City Hall'• -1055 South Grady Way • Renton;Washington 98057.• rentonwa:gov. ar working with the developer to ensure compliance with the Erosion,andSediment•. Control Requirements. If you believe-the site continues to be.non-compliant"please : - • ' continue to•work'with the Lead Construction Inspector, Pat Miller (425-430-7439),to ' ensure compliance"with approved plans. . Please note the Citysh'as placed the projecton_hold pending the receipt of-additional . ' . ' .• . information by th applicant The•City has,requested•the;applicant provide an independent;secondary review of-the'applicant's wetland analysis and effectiveness of • , the proposed mitigation to determind the extent,function and value of the wetland/stream habitat and'potential for impacts and mitigation. Your letter has'been'•included"in the official project file.`You-have also been confirmed • as a party ofrecord and if you have any further questions please feel free to contact me at 425-430-7219 or rtimmons@rentonwa.gov."Thank you., Sin:cerely,... oc le Tim.. _..r i - Se or Planner. . Denis Law Cl .of Y Mayor x r L IV f January-13, 2014 : - Department of:Community'and Economic'Development -. . :- CE- Chip"Vin cent,Administrator 1 Claudia Donnelly 10415 147th Ave SE Renton;WA 98059 SUBJECT: > PIPER'S BLUFF CRITICAL AREA VARIANCE COMMENT RESPONSE LETTER - - LUA13-001568,VAR Dear.Mrs.'.Donnelly: Thank you:for;your comments related to•the Piper's Bluff Critical Area Variance;-dated December 31, 2013-wherein'yOus raised concerns regarding the proposed:project.-Your : - - letter has been included in the official project:fileand the reviewing official will consider,: : your:concerns:and requests'"as part:of their.revieW. Please note the City has:placed the-project on'hold pending the,receipt of additional information by the applicant: The City has requested the applicant provide an : -- : independent secondary review of the applicant's Wetland analysis and effectiveness-of the proposed:mitigation to determine,the extent,4unction and value Of the ' wetland/stream'habitat and,p.otential.for.impacts and.mitigation. : With-respect:to.the trees the applicant is required to retain30percent of the trees lo dcate •on site that are not located within critical'areas, proposed rights-of-way and access easements. •Ofthe 211 trees that were located on site 54 trees"would be excluded from the tree.retention requirements. Therefore, the applicant.wa's required to retain•at least:4,7 trees on site• Originally, the ap•plicant only proposed to retain one tree outside of the critical areas-and their:buffers The code•does:allow for replacement trees when the required number of protected trees-.cannot be retained: The replacement:rate is 12-calip:er inches;of_new trees to-:, • replace-.each-protected tree removed. 'However, in an effort:to protect valuable, • • - - • irreplaceable environmental amenities and to make urban development as compatible; " as possible with-the ecological balance of the area staff•r"eq`uired the developer to retain those trees:located:on-proposed Lots 29.and 30 resulting in the retention of 10.total trees.(outside'the critical area). The area was also:required to be used as a site to accommodate replacement trees, Those-trees"that were•proposed to beretained r dutside:the critical area) are.still located on the:Site. 1- , - Renton City Hall'• 1055 South Grady Way • Renton;Washington 98057. rentonwa.gov You.have"been confirmed as a party of record and'if.you have any further questions: please feel•free to contact me at 425-430-7219 or.rtimmons@rentonwa;gov. Thank you. Sincerely, oc le Tim 4..-; Se or Planner i.. • . . ,. : 21T!TIIsLaw 41) January,13, 2014 : Department of Community and Economic Development C.E."Chip"Vincent,Administrator: brad Adkins 5210 NE 12-th•St Renton, WA.9805:9 SUBJECT: PIPER'S BLUFF CRITICAL AREA VARIANCE COMMENT,RESPONSE LETTER LUA13-001568,:VAR Dear.Mr:;Adkins: I Thank you foryour comment''s.related to the;,Pipee,s Bluff Critical Area Variance; dated December 24; 2013 and January 2,.2014 wherein you raised-concerns regarding the, : proposed project. Your-letters have been included ih the official project filearid the reviewing official will_consider your-concerns and.requests as part of their review-. '; " Please note the City,has placed the project on hold pending the:receipt of additional. -' information by the applicant The City-has requested:the applicant provide an independent secondary review of the appiicant's wetland analysis and effectiveness of . the proposed Mitigation-to determine the extent, function-and value of the wetland/stream habitat and potential-for,impacts.and mitigation. City staff understands:there have been some issues with-respect to Erosion Control • - during the construction-of the_Preliminary'Plat._,The applicant did design a"Temporary , • Erosion and Sedimentation Control;Plan (TESCP):pursuant to the 2009 King-County Surface Water Design Manual Erosion:and Sediment Control Requirements We are working with`the'developert"o ensure compliance with the;Erosion and Sediment : Control.Requir'em'ents: If.you believe the site:continues to•be non-corrmpliant-please continue to work with the Lead Construction.Inspector, Pat Miller (425-430-7439),:to • ensure compliance with approved plans and review=weekly r.eports. .: - You have been ,confirmed as a party of record and if you have any.fu:rther question's please feel free to Contact.me at 425-430-7219 or rtimmons@rentonwa•.gov. Thank you. Sincerely, oc Ie.Tirti i' . Se or Planner Renton City Hall.• .1055 South Grady Way : Renton,Washington 98057 •rentonwa.gov. Rocale Timmons From: B Adkins <spyceetwo@yahoo.com> Sent: Thursday,January 02,2014 4:22 PM To: Rocale Timmons Cc: Michele McNeill;Julia Bryan Subject: Piper's Bluff/LUA13-001568,VAR Follow Up Flag: Follow up Flag Status: Flagged Dear Rocale, Please deny this application or at least postpone approval until samples can be tested downstream to determine the damage that has already been done by WestPac Developement LLC. Fish inhabit Honey Creek less than a mile downstream from where this project is occurring, other wildlife make. their home along the entire creek and after watching the amount of unmitigated runoff that entered the creek on but a few of the occasions it did I am absolutely positive their environment has been adversely effected. I'd even be willing to pay for the sample testing if my assertions prove to be incorrect. I'm pleading with you not to approve. this 'application. Do not let WestPac Developement LLC or anyone else for that matter run roughshod through our wetlands and protected habitats doing irreparable damage to our natural areas. Thank you, Brad Adkins 5210 NE 12th St. 98059 206-290-1001 1 Patrick Blodgett ilte • 5118 NE 12th St 0, \;\s'° Renton, WA. 98059 paS\r\rg December 31,2013 p1 SCIRocaleTimmons Senior Planner oS City of Renton, WA. Department of Community&Economic Development 1055 South Grady Way Renton, WA. 98057 Dear Ms. Timmons: I am writing concerning the PIPER'S BLUFF/LUA13-001568,VAR application for a variance and addendum. My residence/property is located at 5118 NE 12th St. in Renton,which on the north side of the Piper's Bluff project. Since construction began on the project in spring 2013 I have had concern with the lack of notification of changes to the project as well as excess water and mud run off from the project to my driveway. My neighbor Brad Atkins who lives east of has also experienced on numerous occasions excess water and mudflow down into his driveway and property. My main concerns are where the water will flow after completion of the paving of the"half'road"A" on the north side of the property and an agreed paving of approximately 15 feet of my private driveway. Also on another note my gas line has been broken twice during the project excavation. Both times it was repaired by PSE and my appliances required relighting. Another concern I have is that I was informed that contractor(I believe Collins Homes or something like that)had made a plat change request to the City to eliminate the requirements in original plat for the alley. My concern is that if that is granted it will increase the amount of traffic that will be directed to use the"half'road"A" as their main means of egress and impact my driveway and property to the north. I was supposed to be a party of record for these sorts of revision requests but did not get notification of it through mail nor email, I was informed by Peter O'Kane from PacWest. If this variance request is still being considered I would like to state that I would prefer it be denied and the original plat request be upheld to keep the alley in place as planned. Please feel free to email or call me as noted below. Thank you Patrick Blodgett Email: patcher6@comcast.net Cell Phone#: 206-999-1843 J 1041 5— 147th Avenue SE Renton, WA 98059 December 31, 2013 Ms. Rocale Timmons Senior Planner City of Renton 1055 S. Grady Way Renton, WA 98057 RE: LUA13-001568,VAR (Piper's Bluff) Dear Ms. Timmons: I would like to comment on the proposed request for buffer averaging for the wetland. How much of the wetland will be left when done? As stated in the preliminary plat report, the Muckleshoot Indian Tribe "raised concerns regarding the stormwater facility outlet being located within the wetland as opposed to its buffer. Additionally,the Tribe requested the Applicant be required to comply with the enhanced water quality standard as opposed to tlf basic water quality treatment standard in order to avoid causing impacts to salmon downstream." What will the city do—or do you care about protecting the salmon in Honey Creek or May Creek? The City is already is requiring the developer to relocate the outfall to the wetland buffer why the change? In addition, what happened to all of the trees that were supposed to be kept? The applicant was to keep 47 trees. Where are they? To mitigate trees that took 50+years to get to the height they were when cut with 422 caliper trees„that's no mitigation? Like I told my kids, Renton is allergic to keeping trees within the city. I sincerely hope that Renton changes its attitude towards trees and protecting Honey Creek with this application. Thank you.RECEItit Sincerely, ei DEC 81 f PLAN®I?!WON LdIVISION Claudia Donnelly o Nmrriruv,11 ii. Michael & Claudia Donnelly 4e.4 1. :5 ... n:, v . - 10415 - 147th Ave. S.E. pis r'"i ;_ <,. -' Renton WA 98059-4213 k.., DEC:.: ° r'-a.:s ^ier':Y'' ;-t `"`'t;' -- o:.. A.1 Trey,nsel.,„ O."c--(71 et rRe41+Di) Off").. .°<<‘eci C>#1,,, to ti, I e rd rvo LtlA 4 G°sr soo ;32—. 2s ijil'i1iii1pipjlilsiiii1ii1.1i.ol,:ihi l1i1i1111iri]lilitill Brad Adkins P.O. Box 3084 Renton, WA. 98056 December 19, 2013 Rocale Timmons Senior Planner CITY City of Renton, WA. Department of Community&Economic Development OFRENTON 1055 South Grady Way RECEIVED Renton,WA. 98057 DEC 2 4 2013 Dear Ms. Timmons: BUILDING®IVISION I am writing concerning the PIPER'S BLUFF/LUA13-001568, VAR application for a variance and addendum. Do not approve this application! Do not grant any variances or addendums! Do not continue to rubber stamp this project without considering the ramifications of doing so. I reside at 5210 NE 12th St. in Renton. My property is adjacent to the Piper's Bluff project. Honey Creek flows through my property on the north/downstream sided f the Piper's Bluff site. Since construction began on this project in late spring of 2013 I have witnessed and documented a lengthy list of mishaps,mistakes and missteps occurring on this jobsite. I made record of these events not because I'm a snoopy do-gooder with nothing better to do, but because I was and am continuously the person paying the price for their(WestPac Development LLC) ineptness. My phone line has been severed several times and is currently working only because I used copper wire to repair the latest break that occurred on Dec. l lth. The power line has been"accidently" cut multiple times, one of which caused us to be without heat, lights, and hot water overnight on Oct. 30th. The water line has been cut multiple times. The last time they repaired the water line so much dirt and sand was in the line I had to disassemble and clean all the aerators, angle stops and flush valves in the house. In July the jobsite foreman Terry Defoor was working alone on a Sunday when he ripped out and ruptured the natural gas main running along our property. Currently, seventy-five feet from my front door, is another section of that same gas line that was heavily damaged but not compromised. It was left exposed for several weeks until recently when they covered it without repairing it. The afore mentioned incidents were all disruptions that occurred without any notice at all, let alone the required 48 hours. Poor planning and a complete lack of concern by WestPac has been the cause of considerable flooding on our property on several occasions also. The first two of these events also sent tens of thousands of gallons of silt laden runoff cascading into Honey Creek filling the downstream portion(mine) with all the silt. The work they have done to mitigate this problem will not stand the test of time and eventually flooding will reoccur. I am greatly concerned with all the work that has been done to the creek and the wetland buffer at least some of which was done without a permit. I am very interested to know if Deni's Law:i•. C ofMayorg, s; 01-4 , Apri1:10;,2014 Department of Communityand Economic Developrrient - tiE;"Chij Vincent;Admiriisfrator - Peter'0lane•., WestPac Development, Lit 74.49 West Mercer°Way' 1 . - - Mercer Island,WA 98040:- - SUBJECT: "Orr•Hold" illotices-'Contiriued: i • Piper's'Bluff.:Critical.Area Variance,`.LUA13=.001568,VAR. - . Dear:IVIr. O. 'Kanes" The Planning,Divisions of the=.City-ofRenton accepted.`.`the above•master aPPlicatiOn for - 1 review-•on_ December:17-;2013;,"• During'our review;-staff 4etermined7 that additional information.was necessary in order'to''proceed further_ `Ori,January;13;:2014 the':project" was, placed on`hold 'pending•receiipt. of an Independent.'Seco:ndary:Review".-of.the': - provided'Critical.Area•Report;&'Supplemental Stream_Stud,y.,:alongwith a Supplemental,• Environmental`,Checklist.. To,date:an Independent?;'Secondary'Review of:.your:provided.submittal-:materials was;i completed'"by"Otak,=lnc: Based:on a:site_assessment'..and review,•of.your.submittals•Otak has provided: a;•Technical:;:Memorandum:,(attached);,.dated April"9,;,-2014. •The;memo', contains a number of recommendations and requirements needed in order to,m`eet'=the• City code-for :critical•.areas•and critical area.variances: ',In order,to proceed with the processing.of the'subject:appl cation•all:-comm'ents and;recommendations, contained.in' , - I the attached memo,would:be'°required to`be addressed and:subbsequently;reviewed'atid approved. • The-following;information will; need`to be.:'submitted before'-July'`1,0 ".2014:so:that we. . I - • ' may"°continuke the:,review of:the above subject:application:. ' - i- : - d,. Revised.Critical:aArea.'Var"iance.Request:-Documentation:;Please,provide.,`5:•copies°- I 1 1. of--revised _critical :area: Variance ,request documentation. .addressing .:all i recommendations found in the O.tak,Memo,datedApril;'9;..2014: .Th'e:revised''' documentation, is:subj,ect to,additional analysis::by an Independent qualified professional. -This•.additional analysis'shall ,also•'''be paid at. the :applicant's expense: -. 4` Supplemental."-Environmental.-:Checkli'st Please. ;also• ,=provide= 5 :copiesa'of 'an,. updated Environmental Checklist describing proposed.water'main extension:and'j 1 pro,posed'`critical area imnpacts<and`mitigation. RECEIVED MAY 2g2014 Renton'City.Hall • 105s.SoutlhGradyWay-..Renton;Washington;9805T-:rentonwaigov Cii'`Y OF RENTON PLANNING DIVISION Rocale Timmons December 19, 2013 Paget they were fined for that"mistake". I would also like to know what inspections have been done since their mistake was discovered. If any, I am interested in seeing those reports. I. hope that since they have shown no regard to the retaining the wetland's pristine nature, the State Department of Ecology and any other appropriate environmental agencies been become involved with this project. Based on the fact that what has been done in the buffer and the creek was done so quickly, seemingly overnight and at least a portion was done illegally and the huge impactit has had and will have not only on my property but also that of my neighbors and the wildlife that live here I am requesting in the strongest possible terms that any further work in and around the creek or wetland buffer be halted and no variance or addendum be granted until a thorough and comprehensive study can be conducted to determine the extent of the damage that has already occurred and what possible impact continued development especially if done by WestPac Development LLC would have on. our environment. I also request and expect the city of Renton to do a much more thorough job overseeing projects such as this one now and others in the future. Thank you for your support. Sincerely, Brad Adki s ps: The rain on the 20th&21St of Dec. sent more contaminants into the buffer and then the creek. (pictures and video available upon request) cc: Michele McNeil Julia Bryan file t Denis.• oLaw CltY Of Y N Department of Community and.Economic Development( C.E."Chip"Viincent,Administrator..,:November 18) 2013 Rob..Risinger " Conner.Homes 846.108'h Ave N E, Ste 200 t Bellevue,.WA 98004 .i Subject: Notice of Incomplete Application. Piper's`Bluff Variance,.LUA13-001568 Dear Mr.' Risinger: _ The'Planning Division of the City of:Renton has•determined that the subject application : is incomplete according to submittal requirements.arid, the following items will need to : , , - be-submitted byDecemb.e.r2,•2013.,-in'ordertocontinue•processingyourapplication: Revised. Critical Areas Report addressing sequencing for impacts caused by, the . ' proposed water line, Revised Mitigation Plan addressing impacts•caused by proposed:waterline. ' Pl•ease contact me at (426).430-721p.if you have any questions.:: Sincerely, Sen..r Planner t _• Rent CityHall • 1055 South GradyWayRona • Renton,Washington 98057 •' ren' tonwa.gov ty of, cYn 1, NOTICE OF APPLICATION i A Master Application has been flied and accepted with the Department of Community&Economic Development 1 CED)-Planning Division of the City of Renton.The following briefly describes the application and the necessary i TxM, Public Approvals. 4c'a A:;,, DATE OF NOTICE OF APPLICATION:December 17,2013 k` , PROJECT NAME/NUMBER: Piper's Bluff/LUA13-001568,VAR l The applicant Is requesting a Critical Areas Variance and an addendum to an I y'.1;.",e PROJECTtSEPA to placeTr ':^,.)y.' existing SEPA to place water utility line within a stream,wetland,and their associated buffers:Preliminary Plat approvala , i.1 r and Environmental(SEPA)Review was received for the subdivision of the 5 acre parcel into 28 lots for the future rr<;;.t, F°°„ 4;? construction of single family residences and three additional tracts;for an access,drainage,and a Native Growth i" 1.)pi Protection Easement(NGPE)(LUA12-076).The project site is located within the Residential-8(R-8)dwelling units per xi y;. rYl.r.•`r. a acre zoning classification.Access to the plat is proposed via Hoqulam Ave NE via two new curb cuts,which Is proposed to t'`' to be Improved as part of the plat improvements. Intemal access is proposed via a new loop road(Road A). Theas;'r!:- yi applicant constructed the water line under and across Honey Creek, from theClass 4 stream, f Renton. and through a 3A50ory 2 wetland is located on A 1. };,.,and its associated buffer duringconstruction without approvalL J` the northeastern portion of the site. The applicant is proposing buffer averaging,for the wetland,in order to w;-,:,;,,;, accommodate the storm drainage Improvements adjacent to the critical area. a'j`,E`,=Y;`,"-'} 116fi Hoqulam Ave NEPROJECTLOCATION: ti'k ty..ry r., ,,-•,,:: r,: 7t•,t j Administrative Decision p yr;-r,_ 1.Y,v PUBLIC APPROVALS: l,r;'cs;, ,o'-.:ly APPLICANT/PROJECT CONTACT PERSON: Peter O'Kane/WestPac Development LLC/MAIL•7449 West Mercer Way, • E_,o-:!4,<"w... Mercer island,WA 98040/EMU peter@westpacdevelopment.com l.ir` I ti;'4, Comments on the above application must be submitted In writing to Rocale Timmons,Senior Planner,Department of I R:e--, n3f Community&Economic Development,1055 South Grady Way,Renton,WA 98057,by 5:00 p.m.on January 3,2014.It t Jl'-+t.i.,,;•+_, ,.:,.'Sq you have questions about this proposal,or wish to be made a party of record and receive additional notification by mall, •icontacttheProjectManagerat(425)430-7219. Anyone who submits written comments will automatically become a xy„;:,'i "' " ' • ^i` party of record and will be notified of any decision on this project.il I.: ' f'PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION 3•_ . ._,. 5, 6-.a", r.,, ` November 12,2013 r 1 _ I ,';DATE OF APPLICATION: y I , j L;'t,; _,t: NOTICE OF COMPLETE APPLICATION: December 17,2013 I r 9r r ' 4'''-",,,,zrz-, +1.1 ra-'5 iyt j 17}{k rty -. t'' a h'' r 2 I I;i'. ,.; t': Te-II r L_ I. ( c°, , f Atiikj` ' ;Q,C she r 11 + t .4i ill ,i ,® i;• cr y .._.. c' t.r4i( IL `4, 1.1,;,-s n S', t ' ' k' 4, r • a lt ilMr. !L , «-: ,. , ' If you would like to be made a party of record.to receive further information on this proposed project,complete this i.';L form and return to:City of Renton,CED,Planning Division,1055 South Grady Way,Renton,WA 98057. File Name/No.: Piper's Bluff/LUA13-001568,VAR T,". ,,' c' NAME: t. 4 City/State/Zip: MAILING ADDRESS: TELEPHONE NO.: I, 1( vb,- \c-I /`J , hereby certify that S copies of the above document were posted in ` conspicuous places or nearby the described property on Date: L (NN 1 Signed: :Air, 1STATEOF SS COUNTY OF KING I certify-that I know or have satisfactory evidence that Z.,.ti 0. S _L signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentidut t hie instrument. Vt'Y PO JiJ/Dated: agc , ram. I aH 'j''i,01Jiice TEA),:e i . 0ot4, -,Notary in and for the State of Washington 9 'Ot o otaay(Print): 00Vs.ii p olmentexpires: LJ Slaal?j0 ASHt Ayr,. g . a..r... :: r, CITY OF RENTON,.T:. e. .,„ DEPARTMENTPoOF COMMUNITY&'ECONOMIC DEVELOPMENTPLANNING DIVISION r:= E AFFIDAVIT OF SERVICE BY MAILING ..s On the 17th day of December, 2013, I deposited in the mails of the United States, a sealed envelope containing Notice of Acceptance documents.This information was sent to: ARepiewliV> o,,: . r," Agencies See Attached Peter O'Kane,WestPac Development Contact Rob Risinger, Connor Homes Applicant See Attached 300' Surrounding Property Owners Signature of Sender): STATE OF WASHINGTON SS 16 IAA% COUNTY OF KING 44 4 4 I certify that I know or have satisfactory evidence that Lisa M. McElrea 40p04"i' Z9, signed this instrument and acknowledged it to be his/her/their free and voluntary aktn a1d purposes mentioned in the instrument. WASH Dated: Do C.P/wk,, 1 7'(2013 CJ c To,-t.+?.-( N ar 'Public in and for the State of Washington Notary(Print): My appointment expires: hrojectNa'rne ,k Piper's Bluff Proj ectaNUMber . LUA13-001568;VARr 1023059072 323059312 1023059367 FACILITIES&OPERATIONS CTR MONCRIEF JIMMIE L+CHERYL L WESTPAC DEVELOPMENT LLC 300 SW 7TH ST 1175 HARRINGTON PL NE#313 ' 7449 W MERCER WAY • RENTON,WA 98055 RENTON,WA 98059 MERCER ISLAND,WA 98040 323059174 323059146 323059155 TRAN THUAN+HOANG DUONG MENDOZA RAFAEL F+MARYJ ADKINS BRADLEY J+MARIA THER 277 GLENNWOOD CT SE 14042 SE 112TH ST 5210 NE 12TH ST RENTON,WA 98056 RENTON,WA 98059 RENTON,WA 98059 323059161 323059087 323059228 BLODGETT PATRICK MARTIN DOUGLAS M+JOAN M MARTIN DOUG 5118 NE 12TH ST 11049 142ND AVE SE 1215 HOQUIAM AVE NE RENTON,WA 98057 RENTON,WA 98059 RENTON,WA 98059 323059171 323059054 1023059144 MITCHELL AARON M+KASSANDRA NONIS JAMES W BROYLES VIRGINIA 3205 106TH AVE SE 1228 HOQUIAM AVE'NE 1166 HOQUIAM AVE NE BELLEVUE,WA 98004 RENTON,WA 98059 RENTON,WA 98059 j. BRADDOCK & LOGAN SERV]' a.n to., L pi ry, ,u.;Er f32«: r,Q i""? iMaSt v_at'n'L..1"elQ H.. .J, u d" -•'•.ultra t I P.O.BOX 1751 1. 1 • e DANVILLE,CALIFORNIA 94521 1 l' ' t-}; jz:`'; 7 x=-..a.d —»jT r`. ._f .•.;.. 0 2 0004266801 DEC1 s 2013 MAILED FROM ZIP CODE 9450670131710000073342243 z 0 O or) N W > q,City of Renton u- eq t:3 1055 South Grady Way LLA W Renton,WA 98057 v cc cm Donna Locher, Lead Compliance S r0E:7-i^ s:2 s lr>»JaiI1JjjISJJ11I J l JJIJ fiit Jr itll,J ill I1IJ111 City ofrt ti Y 1 ril . a'4- 2. *A x.r.xr.> : r '`i"Mkc J ,A - 1 .+ r71)i` i p `..Tx'`Q NOTICE OF APPLICATION A Master Application has been filed and accepted with the Department of Community&Economic Development CED)—Planning Division of the City of Renton. The following briefly describes the application and the necessary Public Approvals. DATE OF NOTICE OF APPLICATION:December 17,2013 PROJECT NAME/NUMBER:Piper's Bluff/LUA13-001568,VAR PROJECT DESCRIPTION: The applicant is requesting a Critical Areas Variance and an addendum to an existing SEPA to place water utility line within a stream,wetland,and their associated buffers. Preliminary Plat approval and Environmental (SEPA) Review was received for the subdivision of the 5 acre parcel into 28 lots for the future construction of single family residences'and three additional tracts; for an access, drainage, and a Native Growth Protection Easement(NGPE)(LUA12-076).The project site is located within the Residential-8(R-8)dwelling units per acre zoning classification.Access to the plat is proposed via Hoquiam Ave NE via two new curb cuts,which is proposed to be improved as part of the plat improvements. Internal access is proposed via a new loop road (Road A). The applicant constructed the water line under and across Honey Creek,a Class 4 stream,and through a Category 2 wetland and its associated buffer during construction without approval from the City of Renton. Per RMC4-3-050 is located on the northeastern portion of the site. The applicant is proposing buffer averaging, for the wetland, in order to accommodate the storm drainage improvements adjacent to the critical area. PROJECT LOCATION: 1166 Hoquiam Ave NE PUBLIC APPROVALS: Administrative Decision APPLICANT/PROJECT CONTACT PERSON: Peter O'Kane/WestPac Development LLC/MAIL:7449 West Mercer Way, Mercer Island,WA 98040/EML:peter@westpacdevelopment.com Comments on the above application must be submitted in writing to Rocale Timmons,Senior Planner,Department of Community&Economic Development,1055 South Grady Way,Renton,WA 98057,by 5:00 p.m.on January 3,2014. If you have questions about this proposal,or wish to be made a party of record and receive additional notification by mail, contact the Project Manager at(425)430-7219. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION DATE OF APPLICATION: November 12,2013 NOTICE OF COMPLETE APPLICATION: December 17,2013 p wee ' '# ih i.v 3 t1 I iRY I ct r+ c i I u= .- 7.i.77-r-rbv.,.-.7.. 22...;;;;,-:,,wt*::;;:::i':II'5.; 1, -31;7*-: 14, 1::::4. 14i F Y w 6 .-. 5 b ,- 's j2 ' rFT MI,r ,,a31. , ate ,` ara : f . ri'i(J! If you would like to be made a party of record to receive further information on this proposed project,complete this form and return to: City of Renton,CED,Planning Division;1055 South Grady Way,Renton,WA 98057: File Name/No.: Piper's Bluff/LUA13-001568,VAR NAME: MAILING ADDRESS: City/State/Zip: TELEPHONE NO.: Denis Law cityOf Mayor G4•Y O Department of Community and Economic Development - • December 17, 2013 " C:E"Chip"Vincent,Administrator, Peter O'Kane WestPac Development, LLC• 7449 West Mercer=Way`= Mercer Island, WA 98040 : :• . Subject:Notice of Complete Application Piper'.s Bluff,LUA13=001568,VAR • - Dear`Mr.`O'Kan,e: The Planning,Diivision of-the City of Renton has determined,that the subject application • - is complete according to submittal requirements and, therefore, is accepted for review.' You will be notified if any additional information is:re.quired to continue processingyour application: Please contact me at (425) 430-7219 if you have any:questions.: Sincerely, . Roc e Timmons Senior:Planner cc; Rob Risinger,Connor Homes/Applicant• Renton City Hall • 1055 South Grady Way • Renton,Washington-98057 : rentonwa.gov 1.1. 11mliiiiii'61- /(96) City of Renton LAND USE PERMIT MASTER APPLICATION I PROPERTY OWNER(S) I PROJECT INFORMATION I PROJECT OR DEVELOPMENT NAME: NAME: CONNER HOMES AT PIPERS BLUFF,LLC PIPERS BLUFF 846 108TH AVE NE,STE 200 PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: ADDRESS: 11XX HOQUIAM AVE NE,RENTON,WA 98059 CITY: BELLEVUE,WA ZIP: 98004 TELEPHONE NUMBER: 425-455-9280 KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 102305-9002, 102305-9312, 102305-9367, 102305-9144 APPLICANT (if other than owner) 1 EXISTING LAND USE(S): NAME: RESIDENTIAL PROPOSED LAND USE(S): COMPANY(if applicable): RESIDENTIAL EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: ADDRESS: PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION CITY: ZIP: if applicable) TELEPHONE NUMBER: EXISTING ZONING: R8 V;® CONTACT PERSON PROPOSED ZONING (if applicable):l2 2013 SITE AREA(in square feet): Cud rt u RENTON.NAME: ROB RISINGER PAN 216,928 NING DIVISION SQUARE FOOTAGE OF PUBLIC ROADWAYS TO BE COMPANY(if applicable): CONNER HOMES DEDICATED: SQUARE FOOTAGE OF PRIVATE ACCESS EASEMENTS: ADDRESS: 846 108TH AVE NE,STE 200 PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET CITY: BELLEVUE,WA ZIP: 98004 ACRE(if applicable) TELEPHONE NUMBER AND EMAIL ADDRESS: NUMBER OF PROPOSED LOTS(if applicable) 425-455-9280 28 NUMBER OF NEW DWELLING UNITS (if applicable): 28 H:\CED\Data\Ponns-Templates\Self-Help Handouts\Planning\masterapp.doc -1- 03/11 I PR_JECT INFORMATION (contii._:Jd) NUMBER OF EXISTING DWELLING UNITS(if applicable):PROJECT VALUE: 0 20,000 SQUARE FOOTAGE OF PROPOSED RESIDENTIAL IS THE SITE LOCATED IN ANY TYPE OF BUILDINGS(if applicable): ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE(if applicable): SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): AQUIFIER PROTECTION AREA ONE SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL AQUIFIER PROTECTION AREA TWO BUILDINGS(if applicable): FLOOD HAZARD AREA sq.ft. SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): GEOLOGIC HAZARD sq.ft. NET FLOOR AREA ON NON-RESIDENTIAL BUILDINGS (if HABITAT CONSERVATION sq.ft. applicable): SHORELINE STREAMS&LAKES sq.ft. NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT(if applicable): WETLANDS 5,000 sq.ft. LEGAL DESCRIPTION OF PROPERTY Attach legal description on separate sheet with the following information included) SITUATE IN THE NE QUARTER OF SECTION 10 , TOWNSHIP 23 N , RANGE 5 E , IN THE CITY OF RENTON, KING COUNTY, WASHINGTON AFFIDAVIT OF OWNERSHIP I I, (Print Name/s) C..,hCx'F. -o nog.,1( 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 the authorized representative to act for a corporation (please attach proof of authorization)and that the foregoing statements and answers herein contained and the informaf herewith are in all respects true and correct to the best of my knowledge and belief. r -r2 ,Ij 00%1%1111tp l Signature of Owner/Representative Date Signature of Owner/Repr:" i 4-. %%Hob. I,te STATE OF WASHINGTON ) 1_ i SS COUNTY OF KING A "2 I certify that I know or have satisfactory evidence that Chek,-(0r) F. CONtl , j • "III 0""g 4/9 signed this instrument and acknowledge it to be his/her/their free and voluntary act for the OF Wig''.uses and purpose mentioned in the instrument. Qa,,, f t 19( ( 7 2 r. Date Notary Public in and for the State of Washington Notary(Print): 3 hL2 ro n L. • -b irQ,flin67-47\-- My appointment expires: 10101 ) (1 - H:\CED\Data\Forms-Templates\Self-Help Handouts\Planning\masterapp.doc -2- I 03/11 PLANNING DIVISION WAIVER OF SUBMITTAL REQUIREMENTS FOR LAND USE APPLICATIONS WAIVED.-. : MODIF D:: QU REM TS ..:.,.:.:. BY BY Calculations 0C isa::•.:a;.'r',e,;::;;isl€i;i;:;:skl,r„Ii;t':ri:+:,:;.l:,. t ,;;;,.I red., DoMasfor .fs la Construction Mitigation Description 2 AND 4 D•eedofR'i"`htof=aNaL'De'icafiid o" Worksheet .. . .Density a D.: a1 r n`::•„•P9 Drainage Report 2 E vleatf ns co Ar ect ishf1u I Environmental Checklist 4 v ant Recor ed IGo Existing Easements (Recorded Copy)4 • Elo`od"Haza'cl'r Floor Plans 3 AND 4 Geot , , .ec n cal Re ort: _'P 2, ND. Grading Plan, Conceptual 2 Habitat Data Report 4 o erment:Deferral:` '<'P.. Irrigation Plano Kin" 'o1:+C f3 Asse'sso<s.. a `'Iri` icaf` `'S'f d fteilli' 1VI IK Landscape Plan, Conceptual4 L`nadsca Rla; De a l`e n t fed° Legal Description 4 Ma :of.:Exfst n .Sf o: Master Application Forma Monf finent..Cards:.one er.:m..., nt.:_. Neighborhood Detail Map 4 Pa. m f ove a e:&Landsca f alArl<r n n9P 4114. Plan Reductions (PMTs)4 PLANNING DIVISION Post„Offce:'A`L " ro''a This requirement may be waived by: I/ 1 1. Property Services PROJECT NAME: V 2. Public Works Plan Review 3. Building DATE: II /2°/. 4. Planning RACED\Data\Forms-Templates\Self-Help Handouts\Planning\waiverofsubmittalregs.xls 06/09 PLANNING DIVISION WAIVER OF SUBMITTAL REQUIREMENTS FOR LAND USE APPLICATIONS Dr: M DIFfD!=1A1.1/E O°SE:PERM T S:UB MITTA Wl_i4 U 1 Plat Name Reservation 4 Fr a' "1 cat eefi um Public Works Approval Letter 2 Rel`a''lfafions>P Screening Detail 4 Stream or Lake Study, Standard 4 Ste m or::La.e; ud. :S. t tr:RP 4.. Stream or Lake Mitigation Plan 4 St ee°R.r!ofles''t. rr:.::.:.::..r::.:...:.:..:.....:......:r...........,.......,.,...,r.........:. . .._„ r r.::....;:r.:,:;<.:, r..r.. ...:..r r:rr .. r r:: . . ... ,. . .. . r: r.. Title Report or Plat Certificate 4 T M Traffic Study 2 T;fee C uttin`Land Clean P Urban Design Regulations Analysis4 Utllftl s Pla Gene 1 ze Wetlands Mitigation Plan, Final 4 a' r'el'inna`In I i rya` Wetlands Report/Delineation 4 frelppss`''> Applicant Agreement Statement 2 AND 3 Inventory of Existing Sites 2 AND 3 Lease Agreement, Draft 2 AND 3 Map of Existing Site Conditions 2 AND 3 Map of View Area 2 AND 3 Photosimulations 2 AND 3 This requirement may be waived by: 1. Property Services PROJECT NAME: 2. Public Works Plan Review 3. Building DATE: 4. Planning H:\CED\Data\Forms-Templates\Self-Help Handouts\Planning\waiverofsubmittalregs.xls 06/09 JUSTIFICATION FOR THE VARIANCE REQUEST PIPERS BLUFF CRITICAL AREA VARIANCE The water line is required by King County Water District#90. The applicant worked with the water district in an attempt to waive their requirement to install this redundant line,which would have avoided all impacts to the stream and wetland. That attempt was unsuccessful, so minimization is accomplished through implementation of the following: Crossing the stream and wetland at a very narrow point Crossing the stream and wetland in an already impacted power line corridor. Establishing appropriate erosion and sedimentation control measures prior to in-wetland/stream work. Limiting the width of the trenching to the maximum extent practicable. Immediately stabilizing and restoring the disturbed areas consistent with appropriate erosion control plan,native plantings, and stream substrate. Because the stream is well upstream from any priority species habitat, the primary potential impact on sensitive species would be from turbidity. Turbidity will be minimized by installing a culvert to divert the stream water over and around the work area. PIECE!VIED DEC 0 2 2013 ru- W, @?IIPLANNING I; DiVISt" PROJECT NARRATIVE PIPERS BLUFF CRITICAL AREA VARIANCE The applicant is developing a 28 lot plat on the subject parcel and three adjacent parcels. An 8"diameter water line would be placed in a 16"diameter, 30 foot long steel casing spanning beneath Honey Creek and its associated wetland. The pipe would be placed in an excavated trench 5 feet below the bed of the stream and 3 to 5 feet below the wetland surface. The trench would be a maximum of 3 feet wide in the center and a 10 foot wide cleared easement. The pipe would be bedded in imported crushed rock or controlled density fill, and then the excavated native stream or wetland soils would be placed back in the trench. Stream and wetland impacts would be temporary,and a re-vegetation plan would be implemented.No significant trees would be removed in the wetland or buffers. The project will be constructed as follows: 1. Appropriate erosion and sedimentation control measures will be installed. 2. The site will be cleared by hand. 3. The trench will be dug with a mini excavator through the buffer,wetland and stream. 4. The trench will be bedded with gravel as shown on plans. 5. The pipe run will be installed, and back filled as shown on the plans. 6. The thrust block will be installed at terminal point. 7. The disturbed areas will be restored as shown on the restoration plan. RRECEIVED DEC 022013 CM OF R;6e:PTr PLANNING DIVISk.) iMAP S 1 t '''''\ s t. . r11..1 k \ \ \ '? I P.V->nek',..:.: " Ilkiiiiii iII 4111 6 I. I if.. 1 l 1 .. I, 41‘1u • i NN. • '',,\ t iY L x. f 01: fir _ N i . . t, s._, a RentonWPIII - c. `\ i' R-4 IL 4:111.1 4, 1-Igoe mialt_ 1t 7 r \ \:\, 4E1lCT it_ -11:..__ .___v ,, f _ I 1 , I' IL I S fa sw\ V ilkjI111„„,,,Pailr. tiiiiiik... . imilligl IIIIRRIPpip .........: ,__;.; „ 1 t• v nnlST CI 200E King County • 01 145ft +I t_. •' The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice.King County makes no representations or warranties,express or implled,as to accuracy,completeness,timeliness,or rights to the use of such Information. This document is not intended for use as a survey product.King County shall not be liable for any general,special,indirect,incidental,or consequential a damages including,but not limited to,lost revenues or lost profits resulting from the use or misuse of the information contained on this map.Any sale of King CountythismaporinformationonthismapisprohibitedexceptbywrittenpermissionofKingCounty. Date:11/11/2013 Source:King County MAP-Property Information(http://www.metrokc.gov/GtS/'iMAP) 1 t Ill1.y y:_ _` : Sewall Wetland Consulting, Inc. 4- 27641 Covington Way SE#2 Phone 253-859-0515 Covington WA 98042 Fax 253-852-4732 April 15, 2013 Peter O'Kane WestPac Homes, LLC 7449 West Mercer Way Mercer Island,Washington 98040 RE: Pipers Bluff Plat-Revised City of Renton Critical Areas Report Supplemental Stream Study SWC Job#12-135 1.0 INTRODUCTION This report describes jurisdictional wetlands and streams on the 5 acre proposed Pipers Bluff Plat, located on the east side of Hoquiam Avenue NE in the City of Renton, Washington(the"site"). Specifically,the site consists of a rectangular shaped group of four(4)abutting parcels in a portion of the NE 'A of Section 10,Township 23 North, Range 5 East of the Willamette Meridian in King County, Washington. In St 01 n' 41E 23.161 NE 73Id St 9 CT to 3, NE 3Sr,=r 11E2011,SI SE!Nth St Z NE 2;n Sl ,_ NE 191n 51 4,,19:his Y C ca a 7 eanPc'° SE1071r,51 tie t•. n ,. c z NE'7th St 07'h P'r' NE 17th St yn 1 S tn1S l <ud NE 1611.St m (J) Renton Isse z o p rr Q. yE p e atMonfssat4- FSunyu 6•„t1 rhue.! n Reserver rl 1,E'0th 5t NE 12t't St NE 1i1.,St it SE 1129.e; SITE SE 112Ihn i SE 117th St IC Itt,Cr NE 1lth StDIn SE 1Min: ti NE 1'in St OL:VER l01i NE.IrAr. HAZEN HIGH NE lofhP y; 9 -- SCHOOI LEi tuts St = m NE 1os-SI NE ICE'St S SE' m 4 a Vicinity Map fil Ra\L.L.,- 11 " :-.Li DEC 022013 CITY OF L ENTON PLANNING DIVISION Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15, 2013 Page 2 The site consists of four Parcels including#1023059002, #9367,#9312 & #9144. Single family homes are present on two of the parcels along Hoquiain Avenue, and the remaining property besides the associated lawns and landscaping is undeveloped forested area. The site is proposed to be subdivided into 30 single-family residential Lots with associated roads, and infrastructure. 2.0 METHODOLOGY Ed Sewall of Sewall Wetland Consulting,Inc. inspected the site on June 6,2012.The site was reviewed using methodology described in the Washington State Wetlands Identification Manual(WADOE, March 1997).This is the methodology currently recognized by the City of Renton and the State of Washington for wetland determinations and delineations. The site was also inspected using the methodology described in the Corps of Engineers Wetlands Delineation Manual(Environmental Laboratory, 1987), and the Western Mountains, Valleys and Coast region Supplement(Version 2.0) dated June 24, 2010, as required by the US Army Corps of Engineers. Soil colors were identified using the 1990 Edited and Revised Edition of the Munsell Soil Color Charts Kollmorgen Instruments Corp. 1990). The Washington State Wetlands Identification and Delineation Manual and the Corps of Engineers Wetlands Delineation Manual/Regional Supplement all require the use of the three-parameter approach in identifying and delineating wetlands. A wetland should support a predominance of hydrophytic vegetation, have hydric soils and display wetland hydrology. To be considered hydrophytic vegetation, over 50%of the dominant species in an area must have an indicator status of facultative(FAC), facultative wetland FACW), or obligate wetland(OBL), according to the National List of Plant Species That Occur in Wetlands:Northwest(Region 9)(Reed, 1988). A hydric soil is "a soil that is saturated, flooded,or ponded long enough during the growing season to develop anaerobic conditions in the upper part". Anaerobic conditions are indicated in the field by soils with low chromas(2 or less), as determined by using the Munsell Soil Color Charts; iron oxide mottles;hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5%or greater of the growing season. Areas that contain indicators of wetland hydrology between 5%-12.5%of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of soil inundation, saturation, oxidized rhizospheres,water marks on trees or other fixed objects,.drift lines, etc. Under normal circumstances, indicators of all three parameters will be present in wetland areas. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 3 Following delineation of the wetland and stream on the site,the flags were surveyed by D.R. Strong Consulting Engineers (see attached survey). 3.0 OBSERVATIONS 3.1 Existing Site Documentation Prior to visiting the site a review of several natural resource inventory maps was conducted. Resources reviewed included the NRCS Soil Survey,National Wetlands Inventory,and the City of Renton's Water Class map. 3.1.1 Soil Survey According to the Soil Survey, King County Area,Washington(Snyder et al 1973),the entire site is mapped as containing Alderwood gravelly loam soils(Map Units AgC & AgD). Alderwood soils are moderately-well drained soils formed in glacial till under conifers. Alderwood soils are not listed as a"hdric"soil according to the publication Hydric Soils of the United States(USDA NTCHS Pub No.1491, 1991). However, Alderwood soils can contain small inclusions of poorly drained hyric soils such Norma, Bellingham, Seattle, Tukwila and Shalcar soil series. 1 to i r t rr c Jb ' 4 ----- Y ri. 1t 1 a 9y hF I rk rug . T"t kR f ex4' w AO is .fir s ' r" k'' se., F 3': 1' -' M t .!Sa', ;.4of ;r•g:':'* , '' x ;;•I ns }• 4 E Se:',.J, y?y • Y' . k r '... h X1F ' 4` CI .:,`‘;''.7-':-:fai5':4- i0:fi,1:4,-Z.rt :Iirt; liv.j. :L.xr;,, " 2 r.`. ks 2'?:'"d:L : _ __ rf '55 Soil Map of the site J Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 4 3.1.2 National Wetlands Inventory According to the National Wetlands Inventory there are no wetlands or streams located on or near the site. R f' x e'er. A. _ , , Fy y.....ti+.-, yet{ . tl @Yyr 5 it. tl, f r Le:.t !:-..,.4:. ...5,,,,...,;,, ,, . .. : National Wetlands Inventory map 3.1.4 City of Renton Water Class Map According to the City of Renton Draft Water Class Map, the upper reach of Honey Creek is located on the northeast corner of the site. This stream is mapped as a Class 4 stream by the City(brown stream shading). N Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15, 2013 Page 5 J " hE)' t1+'23rd , ----=4' ,,---di i, . cood ,NE 22nd rt hE Trd:t t NE 22nd NE 27rd w, f NE 2t:t 1 . ! to aNd E. list St g 'c't ; 2;st PI,NE 21st i 6E) ist,ci,}-1 I. L NE 2.3., 2 .SL 1991 S NE 701n e . 3t':11 S 57,s 6t, NE 19th Si ' ,., t1{t1I 0 SE 19.1 'R. NE 181E St iQ.E' a o ,_ Lli: .•" 'r r----,- hF %e .i: 1.` = NE 17-h 5.'o71h PI ,a 2 2{.z '#.• f)s co a to st itIi2thn' 1 Nc tits d[' i: v"'i i ; E'1.314 I vs NE;Cih PI i NI 10t i St 7 1si,'st j St. 4 I SE 117th St i 13 11!!th S{ 1 yi E Mt Ct O ti I • E Nth ct. ,: 1 POI. . i Above: City ofRenton's Water Type Map 3.2 Field Observations 3.2.1 Uplands The site is located near the crest of a hill with the property sloping down to the east towards Honey Creek. As previously mentioned, several structures as well as associated lawn, driveway and landscaped area is located along the west side of the site. The area along the west side of the site includes immature red alder, big-leaf maple,old apple trees, cottonwood, dense thickets of blackberry,hazelnut, salmonberry and sword fern. The western end-of the site appears to have been cleared at one time but has been re-vegetated within the last 20+years. The majority of the site is covered with a mixed forest with conifers as the main component in the overstory. Douglas fir with several 4'- 5' dbh specimens are the dominant species in the overstory with scattered big leaf maple and red alder. Understory species include hazelnut, indian plum, elderberry, sword fern, salmonberry, and stinging nettle. Soil pits excavated within the upland area of the site revealed soils with profiles similar to the mapped Alderwood series. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15, 2013 Page 6 3.2.2 Wetlands A single scrub-shrub,riparian wetland was identified and delineated along the northeast corner of the site. The western edge of the wetland was flagged with orange/black flagging labeled AA1-AA2-A 1-A7, and the east side with B 1-B4. This narrow band of wetland borders Honey Creek which passes through its center flowing in a northerly direction. Vegetation in this wetland consists of small pacific willow, salmonberry, lady fern, skunk cabbage and manna grass. Soil pits excavated within the wetland revealed a sapric muck soil with a color of 10YR 2/1 which was saturated within 12" of the surface. Wetland A would be classified as PSS 1 C (palustrine, scrub-shrub, broad leaved deciduous, seasonally flooded) according to the US Fish and Wildlife Wetland Classification methodology(Cowardin et al. 1979). According to the criteria in City of Renton Municipal Code(RMC) Chapter 4-3-050.M.1, Wetland A would be classified as Category 2 wetland. Category 2 wetlands are defined in the Code as follows; ii. Category 2: Category 2 wetlands are wetlands which meet one or more of the following criteria: a) Wetlands that are not Category 1 or 3 wetlands; and/or b) Wetlands that have heron rookeries or osprey nests, but are not Category 1 wetlands; and/or c) Wetlands ofany size located at the headwaters of a watercourse, i.e., a wetland with a perennial or seasonal outflow channel, but with no defined influent channel, but are not Category 1 wetlands; and/or d) Wetlands having minimum existing evidence of human-related physical alteration such as diking, ditching or channelization; and/or According to Renton Municipal Code(RMC) Chapter 4-3-050.M.1,"Wetland A" best meets this rating as a wetland with minimum evidence of human related physical alteration,but not meeting the criteria of a Category 1 or Category 3 wetland. Typically, Category 2 wetlands have a 50' buffer measured from the wetland edge. 3.2.3 Streams As previously mentioned, Honey Creek passes through Wetland A and the northeast corner of the site. As required by Code,the ordinary high water mark(OHWM) of the creek as flagged with white/blue dot flagging labeled WI-W 8 on the west side and E 1-E4 4N.) Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 7 on the east side. This is depicted on the attached D.R. Strong Consulting Engineers Plat map. Honey Creek is a slow flowing mud and sand bottom stream as it flows northerly through the site. Trash,pallets and tires line the edge of the creek in this area, although • otherwise,the stream appears relatively healthy with about 6" of flowing water across its channel. The stream is strongly influenced by stormwater outfalls upstream as flow in the channel was noted to quickly increase following a rain event. The stream buffer on the project site is very healthy and includes large deciduous and coniferous tree species with a dense native understory. To the east and off-site,this buffer has been impacted by clearing and use of the areas as lawn for single family homes to the east. Honey Creek is mapped as a Class 4 stream by the City of Renton. Class 4 streams are non-salmonid bearing waters during years of normal rainfall and/or mapped on Figure 4, Renton Water Class Map, as Class 4". According to RMC Title IV Chapter 4.03.050.L.5.a, Class 4 streams have a 35' buffer measured from the OHWM of the creek. Although Honey Creek is a non-fish bearing water in this reach, approximately '/4 mile downstream of the site this creek does become fish bearing. As a result this portion of the creek(and associated wetland)has an important function in providing a hydrologic source and attenuating low flow periods of year for the downstream fish bearing section. Wildlife use of the creek is limited to typical urban tolerant wildlife including deer, raccoon, coyote, 4.0 FUNCTIONS AND VALUES The wetland on-site was analyzed,for function using the Washington State Department of Ecology Wetlands rating System for Western Washington. This system is typically utilized to classify wetlands,but the classification is function-based, scoring three main functions, 1,)water quality, 2)hydrologic function, and 3)habitat functions. Wetland A-Wetland A was rated as a riparian wetland and scored a total of 52 points indicating a Category 2 wetland under this system which indicates moderate-high overall functional value. Its highest scoring function was for water quality which scored 20 points, and its hydrologic function was moderate at 18 points. Habitat value was generally low at 15 points due to the lack of unique habitat features, lack of a variety of plant communities, and the close proximity of development to its boundaries. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 8 5.0 REGULATIONS In addition to the wetland regulations previously described for wetlands and streams, certain activities(filling and dredging)within "waters of the United States"may fall under the jurisdiction of the US Army Corps of Engineers(ACOE). The ACOE regulates all discharges into "waters of the United States" (wetlands)under Section 404(b) of the Clean Water Act. Due to the increasing emphasis on Endangered Species Act compliance for all fills of Waters of the United State and Waters of the State,both the Corps of Engineers and Washington Department of Ecology should be contacted regarding permit conditions, compliance,and processing prior to commitment to any fill of wetlands or streams for this project. 6.0 PROPOSED PROJECT The proposed project is the construction of a 28 lot subdivision with associated access road, and storm water facility. The outlet of the stormwater facility will also pass through the wetland buffer. This is an exempt activity within the wetland buffer according to RMC Chapter 4-3-050.C. However, any area disturbed during installation of the outfall will be restored with native trees and shrubs. 7.0 HYDROLOGIC ASSESSMENT The proposed project has been designed to avoid the wetland, stream and its associated buffer. However,the proposed stormwater outfall will disperse water from the site to the buffer area and the associated wetland and stream. Wetland A is a narrow band of riparian wetland which is strongly influenced by Honey Creek flows as well as outflows of stormwater facilities located south of the site. The creek and water entering the site from the south are the main sources of hydrology to the wetland. Other hydrologic inputs to the creek include direct precipitation as well as potentially some minor surficial groundwater outflow from the site. The amount of water flowing from the sites surface to the wetland and creek appears minimal,with no evidence of sheet flow and only a potential minor contribution from infiltrating precipitation. The project proposes to discharge water from the stormwater facility to the edge of the wetland in a rock lined dispersal pad. This should insure water that currently makes it way from the site to the wetland and creek continues to do so. Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 9 Based upon the calculations in the Revised DR Strong Drainage Report for Pipers Bluff dated January 31,2013-see table below),there is a minor increase in the flow rates off the site from pre-developed rates. This should insure the project will not dry out the wetland,and that adequate hydrology enters the wetland to maintain its viability. DESIGN INFORMATION INDIVIDUAL BASIN Water Quality design flow Water Quality treated volume Drainage basin(s) Onsite area(inlcudes frontage) 4.98 Offsite area 0 Type of Storage Facility Pond Live Storage Volume (recuired) 69,132 Predev Runoff Rate 2-year 0.139 10-year 0.241 100-year 0.402 Developed Runoff Rate 2-year 0.928 10-year 1.12 100-year 1.88 Type of Restrictor Frop-Tee Size of orifice/restriction No. 1 0.88 No.2 1.50 No.3 1.40 Above: Table from DR Strong Drainage Report If you have any questions regarding this report,please call us at(253) 859-0515 or at esewall@sewallwc.com . Sincerely, Sewall Wetland Consulting, Inc. Ed Sewall Senior Wetlands Ecologist PWS #212 Attached: Data Sheets WADOE Rating Form Site Plan/survey Pipers Bluff/#12-135 Sewall Wetland Consulting,Inc. April 15,2013 Page 10 REFERENCES Cowardin, L., V. Carter,F. Golet,and E.LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States.U.S. Fish and Wildlife Service, FWS/OBS-79-31, Washington,D. C. Daubenmire, R. 1959.A canopy-coverage method of vegetational analysis.Northwest Science 33:43-64. Diers,R. and J.L. Anderson. 1984. Development of Soil Mottling. Soil Survey Horizons, Winter 1984,pg 9-15. Environmental Laboratory. 1987.,Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1.U. S. Army Corps of Engineers Waterways Experiment Station, Vicksburg, Mississippi. City of Renton Municipal Code Hitchcock, C. and A. Cronquist. 1976. Flora of the Pacific Northwest.University of Washington Press, Seattle, Washington. Munsell Color. 1988. Munsell Soil Color Charts.Kollmorgen Instruments Corp., Baltimore, Maryland. National Technical Committee for Hydric Soils. 1991. Hydric Soils of the United States. USDA Misc. Publ.No. 1491. Reed,P.,Jr. 1988.National List of Plant Species that Occur in Wetlands:Northwest Region 9). 1988.U. S. Fish and Wildlife Service, Inland Freshwater Ecology Section, St. Petersburg, Florida. Reed,P.B. Jr. 1993. 1993 Supplement to the list of plant species that occur in wetlands: Northwest(Region 9). USFWS supplement to Biol. Rpt. 88(26.9)May 1988. WETLAND DETERMINATION DATA FORM—Western Mountains,Valleys,and Coast Region Project/Site:1'1"&7.4.) ! l`"jr City/County: c24-/i---6"J Sampling Date: G--et —1 Z ApplicanUOwner: State: Sampling Point:• b 1'4: Investigator(s): AJ Swal Section,Township,Range: Landform(hiilslope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR): Lat: Long: Datum: Soil Map Unit Name: NWI classification: Are climatic/hydrologic conditions on the site typical for this time of year? Yes No // (If no,explain in Remarks.) Are Vegetation ,Soil ,or Hydrology significantly disturbed? Are"Normal Circumstances'present? Yes No Are Vegetation ,Soil ,or Hydrology naturally problematic? (If needed,explain any answers In Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transacts,important features,etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area Hydric Soil Present? Yea No 77- within a Wetland? Yes No 11' Wetland Hydrology Present? Yes No Remarks: d440v.N,-A,/j VEGETATION—Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: Cover Species? Status Number of Dominant Species 1. PS leeo/aAwls , 'e."z'tJ'u' 6 U P " That Are OBL,FACW,or FAC:f (A) 2. Total Number of Dominant 3. Species Across All Strata: 4 (B) 4' Percent of Dominant Species SaplinalShrub Stratum (Plot size: Total Cover That Are OBL,FACW,or FAC: -2- NB) 1. • /Zv I'v c o,S ee/ar- v r_____Attd Prevalence Index worksheet 2. 12 r,4,-J Srtc.t- j 3 11 f'r C Total%Cover of. Multiply by: j( 3. OBL species x 1= 4, FACW spades x 2= 5. - FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Plot size: UPL species x 5= 1. , P....1,7 14)'c 1,..,... "7,.^ . . 6-1) Column Totals: A) B) 2. 3. Prevalence Index =B/A= 4. Hydrophytic Vegetation indicators: 5. Dominance Test is>50% g. Prevalence Index is s3.0' 7. Morphological Adaptations'(Provide supporting 9 data in Remarks or on a separate sheet) g Wetland Non-Vascular Plants' Problematic Hydrophytic Vegetation'(Explain) 10. 11 Indicators of hydric soil and wetland hydrology must be present.unless disturbed or problematic. Total Cover Woody Vine Stratum (Plot size: 1. Hydrophytic 2. Vegetation Present? Yes No ' Total Cover Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers Western Mountains.Valleys,and Coast-Interim Version SOiL Sampling Point: bP Profile Description: (Describe to the depth needed to document the Indicator or confirm the absence of indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % Tyr*" Locz Texture Remarks 3 dv lG D'743/3 Type: C=Concentration,I- Deptetion,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 'Location: PL=Pore Lining,M=Matrbc Hydric Sell Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': Histosol(A1)Sandy Redox(S5) 2 cm Muck(A10) Histic Epipedon(A2) Stripped Matrix(SB) Red Parent Material(TF2) Black Histic(A3)Loamy Mucky Mineral(F1)(except MLRA 1) ._._ Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(All) _ Depleted Matrix(F3) Thick Dark Surface(Al2) Redox Dark Surface(F6) Indicators of hydrophytic vegetation and Sandy Mucky Mineral(S1) Depleted Dark Surface(F7)wetland hydrology Must be present, Sandy Gleyed Matrix(S4)Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches): Hydric Soil Present? Yes No 1/ 1 Remarks:77 N ,ter. a.., I. HYDROLOGY Wetland Hydrology Indicators: Primary Indicators(minimum of one required:check all that aaoly)Secondary Indicators(2 or more reouired) Surface Water(Al) Water-Stained Leaves(69)(except MLRA Water-Stained Leaves(39)(MLRA 1.2, High Water Table(A2) 1,2,4A,and 4B) 4A,and 4B) Saturation(A3) Salt Crust(B11) Drainage Patterns(B10) ' Water Marks(B1) Aquatic Invertebrates(B13) Dry-Season Water Table(C2) Sediment Deposits(B2) Hydrogen Sulfide Odor(Cl) Saturation Visible on Aerial Imagery(C9) Drift Deposits(B3) Oxidized Rhizospheres along Living Roots(C3) _ Geomorphic Position(D2) Algal Mat or Crust(B4) Presence of Reduced Iron(C4) Shailow Aquitard.(D3) Iron Deposits(B5) Recent Iron Reduction in Tilled Soils(C6) _ FAC-Neutral Test(D5) Surface Soil Cracks(136) Stunted or Stressed Plants(D1)(LRR A) _ Raised Ant Mounds(D6)(LRR A) Inundation Visible on Aerial Imagery(137) _ Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(38) Field Observations: Surface Water Present? Yes No Depth(inches): Water Table Present?Yes No 9Opth(inches): Saturation Present? Yes No Depth(inches):Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: t/r• iir orit. US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version WETLAND DETERMINATION DATA FORM-Western Mountains,Valleys,and Coast Region Project/Site:4'J city/county: 124-J "/ Sampling Date: 6- l - Z Applicant/Owner: State: Sampling Point: bP L C tAj(.>L A) Investigator(s): 0 Section.Township,Range; Landform(hifslope,terrace,etc.): Local relief(concave,convex,none): Slope(%): Subregion(LRR): Let Long: Datum: Soil Map Unit Name:NWI classification: Are climatic I hydrologic conditions on the site typical for this time of year? Yes No ' (If no,explain in Remarks.) J Are Vegetation ,Soil ,or Hydrology significantly disturbed? Are"Normal Circumstances"present? Yes No Are Vegetation ,Sod ,or Hydrology naturally problematic? (if needed,explain any answers in Remarks.) SUMMARY OF FINDINGS- Attach site map showing sampling point locations,transacts,important features,etc. Hydrophytic Vegetation Present? Yes '/No Is the Sampled Area Hydric Soil Present? Yes No within a wetland? Yes " No Wetland Hydrology Present? Yes v No Remarks:t, I (- VEGETATION-Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Jree Stratum (Plot size: Cover Species? Status . Number of Dominant Species 1. That Are OBL,FACW.or FAC:z- (A) 2. Total Number of Dominant 3. Species Across All Strata: B) 4' Percent of Dominant Species Total Cover That Are OBL,FACW,or FAC: / Vf) (NB) SarlinglShrub Stratum (Plot size: 1, ,fz„b vS ,44.kits 7Q P'41— Prevalence index worksheet: 2. Total%Cover of: Multiply by: 3. OBL species x 1= 4. FACW species x 2= S. FAC species x 3= Total Cover FACU species x 4= Herb Stratum (Plot size: UPL species x 5= 1.47f' -i- F /y A,M' ' 3.5 Column Totals; A) B) 2. 3 Prevalence Index =B/A= 4 Hydrophytic Vegetation Indicators: 5. Dominance Test is>50% B Prevalence Index is s3.0' T Morphological Adaptatons1(Provide supporting data in Remarks or on a separate sheet) a' Wetland Non-Vascular Plants' 9. Problematic Hydrophytic Vegetation'(Explain) 10' Indicators of hydric soil and wetland hydrology must 11.be present,unless disturbed or problematic. Total Cover Woody Vine Stratum (Plot size: 1. Hydrophytic 2 Vegetation Present? Yes No Total Cover Bare Ground in Herb Stratum Remarks: US Army Corps of Engineers Western Mountains,Valleys,and Coast-Interim Version f SOiL Sampling Point Profile Description: (Describe to the depth needed to document the Indicator or confirm the absence of indicators.) Depth Matrix Redox Features inches) Color(moist) % Color(moist) % . Tvice' Loc2 Texture Remarks pkp2 Z/i vyyk.z)/ ys Type: C=Concentration,D=Deplellon,RM=Reduced Matrix,CS=Covered or Coated Sand Grains. 'Location: PL=Pore Lining,M=Matrix. Hydric Soli Indicators: (Applicable to all LRRs,unless otherwise noted.) Indicators for Problematic Hydric Soils': ijistosol(Al)Sandy Redox(S5) 2 cm Muck(MO) Histic Epipedon(A2) Stripped Matrix(86) Red Parent Material(TF2) Black Histic(A3) Loamy Mucky Mineral(F1)(except MLRA 1) _Other(Explain in Remarks) Hydrogen Sulfide(A4) Loamy Gleyed Matrix(F2) Depleted Below Dark Surface(Ai 1) Depleted Matrix(F3) Thick Dark Surface(Al2) Redox Dark Surface(F6) 3lndkators of hydrophytic vegetation and Sandy Mucky Mineral(S1) Depleted Dark Surface(F7)wetland hydrology must be present, Sandy Gleyed Matrix(S4)Redox Depressions(F8) unless disturbed or problematic. Restrictive Layer(if present): Type: Depth(inches): Hydric Soil Present? Yea ' No Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary indicators(minimum of one required:check all that apply)Secondary Indicators(2 or more required) Surface Water(A1) Water-Stained Leaves(39)(except MLRA _ Water-Stained Leaves(89)(MLRA 1,2, Hi h Water Table(A2) 1,2,4A,and 4B)4A,and 48) ahuaon(A3) Salt Crust(B11) Drainage Patterns(B10) Water Marks(81) Aquatic Invertebrates(B13) Dry-Season Water Table(C2) Sediment Deposits(82) Hydrogen Sulfide Odor(C1) Saturation Visible on Aerial Imagery(C9) Drift Deposits(83) Oxidized Rhizospheres along Living Roots(C3) _ Geomorphic Position(D2) Algal Mat or Crust(B4) Presence of Reduced Iron(C4) Shallow Aquitard(D3) Iron Deposits(B5) Recent Iron Reduction in Tilled Soils(CB) _ FAC-Neutral Test(05) Surface Soil Cracks(B6) Stunted or Stressed Plants(D1)(LRR A) _ Raised Ant Mounds(06)(LRR A) Inundation Visible on Aerial Imagery(87) _ Other(Explain in Remarks) Frost-Heave Hummocks(D7) Sparsely Vegetated Concave Surface(Be) Field Observations: Surface Water Present? Yes No Depth(inches): Water Table Present?Yes No Depth(inches): b Saturation Present? Yes No Depth(inches): D Wetland Hydrology Present? Yes No includes capillary fringe) Describe Recorded Data(stream gauge,monitoring well,aerial photos,previous inspections),if available: Remarks: US Army Corps of Engineers Western Mountains,Valleys,and Coast—Interim Version Wetland name or amber Wetland ease or number WETLAND RATING FORM—WESTERN WASHINGTON Does the wetland unit being rated meet any of the criteria below? Version 2•updated lnty 2006 to increase acea+eey end reproauckdity anon users If you answer YES to any of the questions below you will need to protect the wetland Updated Oct 2008 with the new WDFW dd'mition for priority babiuts according to the regulations regarding the special characteristics found in the wetland. Name of wetland(if known): 'r wi s""t 4)i3 t'' Dale of site visit -1 v l Z Clt etcLtst:o Vefla td l7is(I13e.Nt i:d'ANdkCtiuilProtection;. YES- NO: Rated by Trained by Ecology?Yes No Date of training 5(ih;lddi['iUofo.'f1i.pi'oteCbOfl et`ommCiidetl for itd category).:, • . SP1.Has the wetland unit been documented as a habitatfir any Federally listed SEC: TWNSHP RNGE:_ Is S/T/R in Appendix D?Yes No_ Threatened or Endangered animal orplant species(TIE species)? For the purposes of this rating system,'documented"means the wetland is on the Map of wetland unit:Figure Estimated sire appropriate state or federal database. SP2.Has the wetland unit been docwnentedas habitat for any State listed SUMMARY OF RATING Threatened or Endangered animal species? Far the purposes of this rating system,"ductuaented"means the wetland is on the Category based ofrFUNCTIONSprovidedwetland capmprietdasCtegoryI Nora:Wetlands th'gtakliedpantsaaciosreregry J by categorized as Category I Natural Heritage Wetlands(see p.19 of data form). I— II III IY SP3.Does the wetlbnd unit contain individuals ofPriority species listed by the WDFWfor the state? Score for Water Quality Functions ..2.45 SP4.Does the wetland unit have a local significance In addinas to lIe functions? Category I v Score>-70 For example,the wetland has been identified in the Shoreline Master CategoryII.. Score for HydrologioFunctioms y Program,the Critical Areas Ordinance,or in a local management plan as Category III-Sore Score for Habitat Functions 7 having special significance.significance. Category IV-Sccore<3030 TOTAL more for Functions ti3 • Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply— To complete the next part of the data sheet you will need to determine the Hvdrogeomorphic Class of the wetland belne rated. Final Category(choose the"blgbest"category from above) The hydrogeamorphic classification groups wetlands into those that function in similar ways.This simplifies the questions needed to answer how well the wetland hmctiona. The Hydrogeomorphic Class of a wetland can be determined using the key below. See p.24 for more detailed instructions Summary of basic information about the wetland unit on elassifying wetlands. WettandUpitbas.Spedeli:' • ;'WetfiurdHGMCli a . Estuarine jDepresslonal Natural Heritage Wetland Riverine Hog Lake-fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal • None of the above Check if unit has multiple EOM classes present Wetland Rating Form—western Washington I August200d Wetland Rating Form—western Washington 2 August2004 vonian 2 To be seed with Ecology publication 0406-025 wake 2 Updated with raw WOFw definitions Oct 2008 i Wetland name ea number Wetland name a number Classification of Wetland Units in Western Washington 5.Does the entire wetland unit meet all of the following criteria? Elie unit is in a valley,or stream channel,where it gets inundated by overbank flooding from that abeam or river lithe hydrologicc criterlb IiiNdTn eadi yutitibtSdd.hotHijiplithiht endib_:tialt;661n ;`,., 1 overbank flooding occurs at least once every two yearn. ratedaouprotiib hrvaYtiritt:,wltl;;initl le'If.GJr 1406w.'11ti1 eM4ialatlft; d eV;` NOTE;The riverfne unit can contain depressions that atefilled with water when the river is hydrologic'.crlterirfri'gti6t tte.lip{iplyiml;gfli$.(jiieidoiiii•sf::•.::?'=";i;:^;..:r::. •.. not flooding ...-..._.-. -. . n:'r.: rig•_:'':-,'-:.`.;`,;S:J.'.:a NO-goto6 te-The wetland classisRiverine 1.Are the evens in the entire unit usually controlled by tides(i.e.except during floods)? 6.Is the entire wetland unit in a topographic depression in which water ponds,or is saturated to the YES-the wetland class is Tidal Fringe surface,at some time during the year. This mews,that any outlet,lfpresent,is higher than the inter If yes,is the salinity of the water during periods of annual low flow below 0.5 ppt(parts per NO- the wetland thousand)?YES-Freshwater Tidal Fringe NO-Saltwater Tidal Fringe(Estuarine) NO-goo to7 Y6S-The wetland class is Deptesslonal use the cams for T.Is the entire wetland unit located in a very flat area with no obvious depression and no overbank your wetland can be classified as a Freshwater Trial Frhr Se j f flooding.The unit dons not pond surface water more than a few inches.The unit seems to be wetlands(fit(Saltwater Tidal Fringe it is rated as an Estuarine wetland Wetlands that maintained by high groundwater in the area.The wetland may be ditched,but has no obvious were called estuarine in the first and second editions of the rating system are called Salt natural outlet. Water Tidal Fringe in the HydrogeomarphioClassification.Estuarine wetlands were NO-goto8 YES-The wetland class is Depressions] categorized separately in the earlier editions,and this separation is being kept in this revision.To maintain consistency between editions,the term"Estuarine"wetland is kept. Please note,however,that the characteristics that define Category I and II estuarine 8.Your wetland unit seems to be difficult to classify and probably contains several different HGM wetlands have changed(see p. ). lases.For example,seeps at the base of a slope may grade into a riverine floodplain,or a small 2.The entire wetland unit is flat and precipitation is the only source(>90%)of water to it. streamIDENTIFYwin aWHICHdepressions]O THE wetland has a zone f Sg along its EDsid I. QUESTIONSBSTICNIDppOFHYDROLOGICREGIMESDESCRIBEDIN1.7 Omiaadwater and surface water runoff ere NOT sources of water to the unit APPLY TO DIFFERENT AREAS IN THE UNIT(make a rough sketch to help you decide).Use YES-The wetland class is Flats the following table to identify the appropriate class to use for the rating system if you have several If your wetland can be classified as a"Flats"wetland,use the form for Depressional HGM elesses present within your wetland.NOTE:Use this table only if the class that is wetlands. recommended in the second column represents 10%or more ofthe total area of the wetland unit criteria? being rated.If the area of the class listed in column 2 is less then 10%of the unit;classify the 3.Does the entire wetland unit meet both of the following wetland using the class that represents more than 90%of the total area. The vegetated part of the wetland is on the shores of a body of permanent open water without any vegetation on the surface)at least 20 acres(8 hie)in size; ROM.Crassier with&thb wetlard.wdt bring.rated . •, ,'-EOM Clasrto Use inRatueg• t least 30%of the open water area is deeper than 6.6 ft(2 an)? Slope+Rivorine Riverien O-gal YES-The wetland class is Lake-fringe(Lacuattine Fringe) Slope+Depressions' Depressional 4.Does the entire wetland unit meet all of the following criteria? Slope+Lake-fringe Lake-fringe The wetland is on a slope(slope can be very gradual), Depressional+Riverine along stream within boundary Depressional Tie water flows through the wetland in one direction(unidirectional)and usually Depressional+Lake-fringe Depressional comes from seeps.It may flow subsurface,as sheetflow,or in a swale without Salt Water Tidal Fringe and any other class of freshwater Treat as ESTUARINE under distinct banks. wetland wetlands with special Tie water leaves the wetland without being Impounded?characteristics NOTE:Surface water does not pond in these type of wetlands except occasionally in very snail and shallow depressions or behind hummocks(depressions are usually • If you are unable still to determine which of the above criteria apply to your wetland,or if you diameter and less than 1 foot deep). have more than 2 ROM classes within a wetland boundary,classify the wetland as Depreselonal NO-go to 5 YES-The wetland class is Slope for the rating. Wetland Rating Fate-weaken Washington 3, August2004 Wetland Rating Form-western Wallington 4 Anesst2004 anion 2 Updated with new WDFW defmitiom Oct 2808 veeivu 2 Updated with new WDFW definition Oct 2008 Wetland oath or numbs Wetland nano or ameba R':•Rivetineeudlree lObiteelidid.fringergtitipdg::,;" ;; ':;, ::; :=;Puititer waTEttwA tit:..ilNOolir!gridiitio!e into i id ArnaLi4ii*iidpiixt-s.',:; 7itf,: 1k::;:1;vEiineadd'Ai'e 8iv eC datFriugeWetlauddc; ,;•- .. '.. :. Pointa:,. 4;:,::= OL-O(t14`'F1tN4TICiN$t;tndtatbialMYwatlindtiiaafieiu'luicdnte.,::.: ,cam•1'.ea: R R I.Does the wetland unit have the potential to reprove water quality?seele52) a. 4)Aoodlt'tin8'eEEdniiiiieton :•f, R3,Dots the wetland unit have the potential lea reduce flooding and erosion? (see p.54) R R 1.1 Area of surface depraaamn within the Maine wetland that can bap sediments Figure_ duringaflooding went R R3.1 eraisties ofdm overbite*storage the unit provides: Figure_ Depression cover area of waded points-g Estimate the average width ofrhe r river channel to the direction ofthe Depeaalena ewer>U2 area of wetland points a 4 flow and the width of the stream or river charnel(distance between banks).Calalae If depressions>X of am of untt dew polygons on aortal photo or nyp_,,,. the ratio:(average width ofuniry(average width ofstream between banks). 9Depressionspresentbutcover<I/2 area of wetland t .bid if the ratio la more en 10then -0 points'6Nodepressionspresentpoints^0 2.1f the ratio l between 10-ZO going^6 R R1.2Chanctcrisdosof the vegetatinsin the unit rams wish>901cooraapnot Wan i: ' Figure_ If theratoiaS-<10 pp ly q Trees or shrubs>2/3 the area ofthe unit Tthe redo is I•ct pen rg If the ratio Is<1Treesorshrubs>1/3 area of the unit poi nts•6 2.. widthsUnglazed.herbaceous plants>20 area of unit mints-6 Aortal photo elo map ah'ovhng amino TreatUngrezedherbaceousplants>1/3 area of unit points-3 co R 3.2 large wotaisd b of vegetation that slow doom water velocities during floods: Figure_ Trees,shrub;and tmgrazed herbaceous<1/3 area of unit points-0 woody debris err forest or shrub".Choose the points appropriate forthe bast Aortal photo or map showing polygons et ddferem vegetationtYDas deteripOon(polygons>1need toba.a a90n cover et person nts>213NOT Cowerdin clam Addtln.points in the Boas ahoy i Forest adwb for>1/3 area OR herbaceous plants>2/3 area R z A Forest or shrub for>UlO sea OR herbaceous plants>dA area pomp-4 R R 2.Does the wetland unit have the pnaortmlty to improve water quality? (see p 53) Vegetation does not meet above criteria points-0 Mein!photo or map'hewing Polygons of different vegetation tvpaaAnswerIFSifyouknoworbelievethemarepolutemsingmwdvuterasurfacewater coming Into the wetland that would otherwise rectum water quality in streams,lakes or R Add the points In the barer above 1 y groundwater dowsegradlent from the wetland?Noe width ofthefollowing condinaa ee+S— provide the coerces ofpulbrarts.Aunit may have pollutants comingfront several R R 4.Does the YES ifth wetland cult have the opportunity to reduce flooding and erosion?. (see p.57) sources,but any single soareewouldgooltfy as opportunity. Answerhiif she unit ism a locations in the warcr ed white the flood storage,or Nving in the wetland or within(SDft reduction in water velocity,it provides helps protect downstream property and aquatic Untreated atormwater discharges to wetland resources from flooding or excessive and/or erosive flows.Note which ofshefollowirng raiding.:apply. Tilled fields or archads within 150 feet of wetland There are human structures and activities downstream(road;buildings,bridges, A'tram or advert discharges into wetland that drain developed mu, fume)that can be damaged by flooding. datial area;famed field;roads,or cleersut logging There ere natural rosarca downstream(e.g.salmon redder)that can be damagedWtResidential,urban areas,golf courses are wigdn 150 ft of wetland by flooding The river or stream linked to the wetland has a contributing basin where human Other multiplier activities have raised levels of sediment,toxic compounds or nutrients he the river Answer NO if the mgior coerce ofwmer to the wetland It controlled by a reservoir or the water above standards for water quality multiplier wetland Ir the side,On inks) Z Other Z YES ultiplier NO multiplier is 1 YES m R' NO multiplier is 1 R TOTAL-Hydrologic Fmmtlons Multiply the score from R 3 by R 4 / 6 R TOTAL•Water Qualify Functions Multiply the score from R 1 by R 2 7„ Add score to fable ones! ( Addscore to fable onp.I _ Comments Comments nuns Fatmg Form-watem Washington 7 August2004 Wetland Rating Form-matzo Wuhingtan 8 August 2004 onion 2 Updated with new WDFW definition.Oct 2008 version 2 Updated with new SWIM definitions Oa 2008 Welded rase or number Wetland name or®bor_ H 1.4.1raragmrioe of habitats(veep 76) Niters. 7rCfhiqut fO 1S' ro'orceanuaaaa'RQ;t?a7M '.'-''-;;r`..;<`; :.:"l r Q l Decide form the diagram below whether inlaapereion between Cowudin vegetation F101Te1tFUS•1CTiO1IS`,lodiii*9 l.liii tru'![otitltido;Qi9.4, Sihpdrtili( .4..e,. 4.4",*: classes(described in H 1.1),or the classes and=vegetated areas(can include open water or H 1.Does the wetland unit have the potential'to provide habitat for many species? sari/flab)is high,\coed um low,orom e. COD CliirDH1.1 V thetyp emvegetatus(seep 73) Flptve_ 0)Check the typo ofvegetation Gleam present(err defined 6y Cowarrda)-Sin threshold for each clan is the acmes more than 1056ofthe area Omit h smaller than 2.5 acres Aquatic bed gent plaits• None-0 points Modmero-2 points bfehmb(areas wham shrubs have>30%cover) b'L .cp" +Ftt meated(areas where trees haw>30%cover) p•ss' 1 lithe unit!rasa fore,ned class check iti r'.:` y_.,.:; The forested class ha 3 out of 5 strata(canopy.sub-canopy,shrubs,herbaceous, r: his.mom/ground-cover)diet each cover 20%within the forested polygon Add the number ofvegetation structures that qualgy.Ifyou have: 4 structures or mom points-4 1 Map of Ceara vegeta=deem 3 etrnames points-2 2 afgeagen points. rds[ I dream points-0 3pomb H 12.),)vdmocriods(rap 73) Figure_NOTE:If you have four ormore classes or three vegetation classes and open water \ Check the types ofwater regimes(hydroperiadr)present within the wetland The water the rating is slwsys"high". Use rap of Cowardin vegetation chases regime has to cover more than 1096 tithe wetland or%acre to count.(see tart H 1.5.$ppeid Habitat Features:(seep 77) descriptions ofhydroperiodr) Check the habitatfeatures that are present in the wetland The number ofehecks is the Famsneedyflooded or inundated 4 or more types!resent points-3 number ofpoinnyorepatinto the neotrnhtma 4_ 11y flooded a inundated 3 types present points-2 rge,downed,woody debris within the wetland(>4ia'diaetar end 6 ft long). Ocomic ally flooded or immdabd 2 types present pow-1 Standing snags(diameter at the bottom>4 inches)in the wetland je stunted only 1 type present points-0 Todordrt banks are patent for at least 6.6 ft(2sn)aaNm werbeoging vegetation emends at Permanently flowinge stream i, river in,or a thee4t tla the wetland least33 ft(Im)over a stream(or ditch)in,or contiguous with the unit,for at least 33 ft 9eeamally flowing stream orrrdjacmit0. wetland 10m) Lake-fringe wetland w 2 points 1 Stable steep taanke of fine material at might be need by beaver or mudaat for donning pyeshweder tidalwetiasd•2 points Map of hydreperiods 30dagaea slope)OR sign ofmant beaver activity are present(cut shrubs or trees that H 13.Nehnesa of Plant SomieB(seep 75) have not yetmrnedgreybmwn) Count the number of plant epodes in the wetland ihatcover at least 10112.01:O eni patches At Iead%acre of thin-stemmed pertinent vegetodou or woody branches ate present in areas of the same species eat be combined to meet the else threshold) tat are permanently or seasonally inundated.(snueturer for egg-laying by amphiblau) You do not have to name the vales.Invasive plants cover less than 25%ofthe wetland area m cash stratum ofplants Do not include Eurasian M ,iLl reed cmmygnar.purple laoremlfe,Coeadlan ThuleNOTE The 20%gated In early printings ofthe manual on page 78 is an error. Z If you counted: >19 apace points.12 Litt species below rfyoo water to:S-19 species pa S H I.TOTAL Scott-potential for providing habitat I /-l 5 species 60 Add the scores)one H1.1,H1.2,H1.3,H1.4,H1.5 i Gi+ 1 Comments I Total for page 3 Wetland Rating Form-wesawn Washinglen 13 Angan2004 Wetland Rating Fora-weaken Wallington 14 August2004 saviors 2 Updated with new WDFW definitions Oa12008 venion 2 Updated with new WDFW definition Od.2008 Waked mine or number_Wetland name or amber H 23 Near oradieceat to other priority habitats listed by WDFW(see new rued complete H 2.Does the wetland unit have the opportunity to provide habitat fbr many species? desc ip8ma of WDFWptority habitats,and the°wades la which they ems belayed in H 2.1 HYff(teep d ply_ the MS report kap:// finwrteoWAn 1,z0R ) Chaves the demfpdon that best represents con doa ofbuJferofsvetlmrdunU.Thor highest scoring Which of the following priority habits!'are within 330ft(100m)of the wetland unit?NOTE the criterion that applies to the wetland is robe suedes the rasing.See tem for definition of coAspenM dos: have robxrdWhndss (asp undisturbed undisturbed" Aspen Mends:Para and mixed stands ofnpen greater than r ha relatively acre). 100 m(33011)of relatively wmdisturbad vegetated areas,rocky areas,or open water>95% lodlves creative rAms Corridors:Axons o riptioat War ea ortp.1 t to vetiow of circumference. No struct res era within the undisturbed part of buf er.(relatively srbac ouBel riVuth ah a size patchestcchesl organ anns In WOFWPHS apart p.ve2b. disnsrbedsalso means no-grazing,no landscaping,no daily human use) Points ge.growthHaWa Vuiests(mprrohea west of Cascadeea on shallodswsoils over leas 2 teek. 100m 301i ofreletivel undisturbed vegetated aces,rocky ante,or open water> Oldegrowf rang a ulrata( OWcmpwthwortccCaonul small openings; toast2tree 3 ) Y t'e8 species forming a multi-layered canopy with occasional small with at least 20 50%circumference.Prints-4 ire siha(8 tradecra)>81 an(32 in)dbh or>200 pars of age.mfa wp fore)Stands 50 m(170tt)of relatively undisturbed vegetated ereas,rocky areas,or spa water>95% with average diameters exceeding 53 cm(21 in)dbh;crown cover maybe less that 100%; circumference. Pobrts-4 crown cover may be less that 100%;decay,decadence,numbers of snap,and quantity of 100 m(330R)of relativelyundislmbed vegetated areas,rocky areas,or open water>25% large downed material is generally less Wan that found in old-growth;80-200 pears old circumference,. POUR.3 west of the Cascade crest. 50 m(170ft)of relativelyundiamrbed vegetated aces,rocky aeas,or open water for> Oregon white Otto Woodlands Stands of pure oak or oak/conifer associetioa where 50%circuntemence. Poles-3 canopy coverage of the oak component is important(fsdldetmlptians In WDFIV'PHS If buffer does not meet any of the criteria those preppoort p.IS8). No paved areas(except paved trails)or buildings within 25 m(80fi)of wetland>95% 111parfan:The area adjacent b agnate systems with flowing water that contalnaelements of circumference.Light to moderate grazing,or lawns are OK. Points-2 both aquatic and terrestrial ecoryatera whichmubuSy influence each other. No paved eras or buildings within lOm of wetland for>SO%cinamfamce.WaWde Prairies:Herbaceous,non-forested pleat caomunities that can either take the Light to mogorate grazing,or lawns ate OK. form of a dry prairie or a wet prairie(AU descriptions in WDFW PHS report p..161). Heavy grazing in buffer. Points-1 Indieam:The combination of plrydnl,biological,aft chemical processes and aaMitious Vegetated buffers we c2w wide(6.611)for more than 95%of the circumference(e.g.tilled that interact to provide funetionsl lift history requirements for inmate fish end wildlife fields,paving,basalt bedrock ennead to edge of wetland Points-0. - 7 remoras• Maw doesmot meet any of the criteria above. Ponds-1 2- Neadwrc:Relatively undisturbed nesrshore habitats.These include Coastal Nearshore, Patti photo showing batten Open CoastNearnhore,and Puget Sated Neanhore.(full descriptions of habits=and the H 2.2 Corridors and Cot mentions(seep 81) definition of relatively andimrbed are in WOFW reps:::pp.167-169 and glossary in H2.2.1 s the wetland part of a relatively undisturbed and unbroken v geated amide,APPendirAA either riparian or upland)that is m least 150 ft wide,has at last 30%cover of shrubs,forest Caves:A naturally occurring cavity,recess,void,or system of interconnected passages under or native undisturbed prairie,that connate to estuaries,other wetlands or undisturbed the earth in soils,rock,ice,or other geological formations sad is loge enough to contain a upland,that ass at leant 250 acres in nice?(dams in riparian corridors,heavity used gravel human. roads,paved wad,,are aouideredbreaks in the corridor). CIV9:(hate than 7b m(25 ft)high and occurring below 5000 ft, YES-4 points (go 01123) O-go to .2 Won Homogmoua areas of rock rubble ranging in storage size 0.15-2.0 m(0.5-6.5 ft), H 2.2.2 Is the wetland part ore relatively undisturbed and td corridor composed ofbaeait,andesite,and/or sedimentary rook,including ripap slides and mine either riparian or upland)that is at least 50ft wide,has at least 30%cover of shrubs or tailings.Maybe associated with cliffs• forest,and connects to estuaries,other wetlands or undisturbed uplands that are at least 25 Snag and Lope Trees are amfdaed snags If they are dead or dying and exhibit sufficient acres in size?JOR a LakeMnge wetland,If it does not have an nndiemrbed corridor as in decay chsracWisties to enable cavity excavationhuelby wildlife.Priority snagihave e the question above?, diameter at breast height or>51 an(20 in)in western Washington and are>2m(6.5 ft)in YES-2 points(go toll 2.3) NO-H2.23 height.Priority logsare>30 cm(12 in)in diameter at the largest aid,and>6m(20 ft) - H 2.2.3 is the swttand: long. within 5 mi(81m)ofa brackish or salt water estuary OR V wetland has 3 or more priectyhebiatu 4 points within S nil of a large field or pasture(>40 acres)OR If wetland has 2 priority habitats-hebita 3 paints within I inn greater than20 acres? If wetland has l priority habitat-1 point No habitats-0 points YE, 1eojpF NO-0 points Note:All vegetated we stands are by definition aprloril'habitat but are not included a tee 3lie.Nearby wetlands me addressed in question H Ls,) Total for pep Welland Rating Form-watemWashington 15 August 2004 Welded luting Fenn-western Waehiagfoo 16 Aimed 2004 version 2 Updated with new WDFW dafmitiou OM 2008 venial 2 Updated with near WDFW defivmom Oet.2008 Wetland name or number Wetland our.cumber CATEGORIZATION BASED ON SPECIAL CHARACTERISTICS H 2.4 Worland Landscape(choose the one description ofthe landreupe aroundthe welted that bestMs)(beep 84) There are at lent 3 otter wetlands within X mile,and the connections between them are Please determine if the wetland meets the attributes described below and circle the relatively undisturbed(light truing between wetlands OK,es is lake More with mane appropriate answers and Category. boating,but oomeclom should NOT be bisected by paved roar:4411,field;or other development points `• Wetland-Type Category The%attend bloke-fringe on a lake with little disturbance and them are 3 other lake-fringe wetlands within X mile points-5 Check offany criteria that apply to the wetland Circle the Category when the There are at least 3 other wetlands veithin'fa mile,BUT the comedians between them oral appropriate criteria are met, disturbed 6fgpy3 SC LO Estuaries wetlands(seep dd The wetland iallake-fringe on a lake with disturbance end there emi other lake-fringe Does the wetland unit meet the following criteria for Estuarine wetlands? wetland within IS mile points-3 There is at least I wetland within X mile.points-2 The dominant water regime is tidal, There see no wetlands within It mile. points-0 Vegetated,and 3 With a salinity greater than 0.5 ppt. H 2.TOTAL Score-opportunity for providing habitat 1 a 1 SC 1.1 NO Add the scaresfieve I21.H22,H2.3,H2.9 1 SC 1.1 Ill the wetland unit within a National Wildlife Refuge,National Park, TOTAL for HI from page 14 _ el National Estuary Reserve,Natural Area Preserve,State Park or Educational, Cat 1 Environmental,or Scientific Reserve designated under WAC 332-30-151? Total Score for Habitat Functions-add the points for H 1,H 2and record the result on YES-Category) NO go to SC 1.2 p•I /D SC 1.2 Is the wetland unit at least 1 acre in size and meets at least two of the following three conditions? YES-Category I NO...Category H Cat 1 The wetland is relatively undisturbed(has no diking,ditching,filling, Cat 11 cultivation,grazing,and has leas than 10%cover of non-native plant species.If the non-native Spatirra app.are the only species that cover more than 10%of the wetland,then the wetland should be givens duel Dual rating(UII).The area of Spartina would be rated a Category II while the rating relatively undisturbed upper marsh with native species would be a I/ll Category I.Do not,however,exclude the area of Spartina in determining the size threshold of 1 acre. At least%of the landward edge of the wetland has a 100 ft buffer of shrub,forest,or rah-grazed or un-mowed grassland. The wetland has at least 2 of the following features:tidal charnels, depressions with open water,or contiguous freshwater wetlands. Wetland Rating Pena-woken Washington 17 Aagna2004 Wetland Patna ram-western Wadtngton It August2004 melon 2 t7pdeed with new WDFW detNtiom Oct.20on cession 2 Updated with cow WDFW definitions Oet 200E COMPANY ISOKirkland WA934.13 a _ U9 13 IA VICINITY MAPS Gi PROJECT AREA V e..., ZIkI" SHEET INDEX I' 1 F` o 1 I i 1 I I I= g tt 3 6®J i i...,>/- m am ana IL MI. DeAFTED: EXISTING CONDITIONSrfulleat p p000' 60 pD 130720 E 3u0errau+Etn PLANT INSTALLATION SPECIFICATIONS PLANTING NOTES M TI!I o...THEM maIGTX.M.ALLEILL,NNn.cmm.c*I. N.................3.3..136.113....13..1.31.48...... WA I CRSI ICD e...NNa CEO\I['ANYwlo 1. IMe...no../..m..3...de.ir.. .a.......lRde....mvd Ydw Jb.k ISCSNICIL 1 I.o.1....1 ....0..Yd..411.mo.uv........y.•r.... TSOAAlo.n Satll Tm, 'o` [o w.n renuwo.mmnr.rt N. , m.aa.l.dwo. p.khMWA 9B011 13.13.1.0.101.1.7.11.01.1372...2........... P R . w.. r.N...ELL m.,.vwn4ma.d.ne.m.a.. I:...nrew INIVIONNCIGOCOONOR ewenwS. Iw..q...ewreN.r..wr...ga..®..... .....m.....dNOtM wn>d.a.e.. 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NISKNCONENNATIUTINSICOWSINNICLYNN t0o ssutrsoAmMolumat Mrt NOINTHSSECTIONTINTFLNISNATINNS INN KIN MU=A.MrsR rom.¢Ta c..Na pioNNSNNFINNs O TREE A SHRUB PLANTING DETAIL 1 F. suNspusnlIsi.V.NWSN4SNNOILLTTNI1opsupealtet MN. LL iAT m mrNw®+rtAWclaV•SwiwNiMN.Mown PLANT iv . . MIo..w. ouow .iw..m..ww.a Yaga.m G wrtocen I wmeo.+ l.MltMTININ,x.xnWAnvers S.MN INSERNE ANNKTSPINSTALLNOISANS me.TMrt.MMwrrs.w.o.r.Tw wxoa N.wMawmAmfoTwT d MOWN DIMS NATNINSUISN MILSOISESITS SHAW. . M.PN NONOLSONILISTLINSONRECNWISSM *.•TRNA ' m INTNSMSONT!NMTM L ski ll,: Al ff LSIS MINN wansume O G ODNDCOVERA PERENNIAL PLANTING DETAILPIN NON WNSNIPSSIANIINLIT IL A,..w.l.cam! "° ATCI.nc«...A.ows:...,s....,.el.,L,n.,.o NNNEISBN nrteaemeNmauMme..SCUM NUNNONwn Isla ux.Ixl m wAAl Kg NMm.mTlw.NNANNIaT...T.ertr..®ATT...<RWIDSPII nAMMToa a3 NONNMw.. Nuc oRarnrurrosm ILININONMONSEVOITHNITNSISE OF>ONa.« M.am ema.urc L 4 STET U.COMII. LL Ieulwwrwx•,.MOUNT..OMTITvI. 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Y§ I I66 KING COUHOQUTAMNTY, AVE WA E, 98006RENTON WA r - N 0 Washington HY^'?AULIC PROJECT APPROVAL,North Puget Sound r•'.Department of 16018 Mill Creek Boulevard FISH and RCW 7.->__.)21-See appeal process at end of HPA WILDLIFE Mill Creek,WA 98012-1296 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date: September 10,2015 FPA/Public Notice#: N/A PERMITTEE AUTHORIZED AGENT OR CONTRACTOR WestPac Development LLC The Watershed Company ATTENTION: Peter O'Kane ATTENTION:Amy Summe 7449 Mercer Way 750 6th Street S Mercer Island,WA 98040 Kirkland, WA 98033 206-619-2992 425-822-5242 Fax:425-827-8136 Project Name: Pipers Bluff Water Line Crossing of Honey Creek Project Description: An 8"-diameter water line would be placed in a 16"-diameter, 30'-long steel casing spanning beneath Honey Creek and its associated wetland. PROVISIONS 1. The project may begin immediately and shall be completed by September 10, 2015, provided installation of conduit across Honey Creek shall occur only between June 16 and September 30. 2. Work shall be accomplished per plans and specifications submitted to and approved by the Washington Department of Fish and Wildlife (WDFW) entitled, "PIPER'S BLUFF WETLAND & CREEK RESTORATION PLAN", dated last revised July 31, 2013, except as modified by this Hydraulic Project Approval. A copy of these plans shall be available on site during construction. 3. Conduit alignment shall be as nearly perpendicular to the stream and wetland as possible. 4. The conduit shall be installed at sufficient depth so that subsequent disturbance of the streambed is avoided. 5. When using trench excavation, the trenches shall be excavated in the dry or shall be isolated from the flowing stream. Plowing, placement, and covering shall occur in a single pass of the equipment. Disturbance of the streambed as a result of the plowing operation shall be limited to the amount necessary to complete the project. 6. Trenches shall be backfilled per the approved plans (Provision 2), and the stream e: o EIVEDwetlandshallbereturnedtopreprojectcondition.DEC 022013 7. Excess spoils shall be disposed of so it will not re-enter the stream. CITY * PLANNING p 7TOA! 8. The conduit approach trench shall be isolated from the stream until laying of the conduit actlbgsDN the stream occurs. 9. Wastewater from project activities and water removed from within the work area shall be routed to an area landward of the ordinary high water line (OHWL) to allow removal of fine sediment and other contaminants prior to being discharged to the stream or to wetlands associated with the Page 1 of 5 1 Washington HYr 9AULIC PROJECT APPROVAL'North Puget Sound r, y Department of 16018 Mill Creek Boulevard4<, ..FISH and RCW i:-:__D21-See appeal process at end of HPA Mill Creek,WA 98012-1296WILDLIFE 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date: September 10,2015 FPA/Public Notice#: N/A stream. Wastewater shall be tested to ensure compliance with state water quality standards prior to discharge to state waters. 10. Equipment used for this project shall be free of external petroleum-based products while working around the stream and wetlands associated with the stream. Equipment shall be checked daily for leaks and any necessary repairs shall be completed prior to commencing work activities along the stream and wetlands associated with the stream. 11. All waste material such as construction debris, silt, excess dirt or overburden resulting from this project shall be deposited above the limits of floodwater in an approved upland disposal site. 12. Disturbance of the streambed and banks and wetlands and their associated vegetation shall be limited to that necessary to install the project. Affected areas of vegetation shall be restored to pre- project or improved habitat configuration. Prior to December 31 of the year of project construction, the approved restoration plan (Provision 2) shall be installed. Plantings shall be maintained as necessary for three or more years to ensure 80 percent or greater initial survival of each species or a contingency species approved by the Area Habitat Biologist (AHB) listed below. 13. If at any time, as a result of project activities, fish are observed in distress, a fish kill occurs, or water quality problems develop (including equipment leaks or spills), immediate notification shall be made to the Washington Emergency Management Division at 1-800-258-5990, and to the AHB. 14. Erosion control methods shall be used to prevent silt-laden water from entering the stream and wetlands associated with the stream. These may include, but are not limited to, straw bales, filter fabric, temporary sediment ponds, check dams of pea gravel-filled burlap bags or other material, and/or immediate mulching of exposed areas. 15. Prior to starting work, the selected erosion control methods (Provision 15) shall be installed. Accumulated sediments shall be removed during the project and prior to removing the erosion control methods after completion of work. 16. Extreme care shall be taken to ensure that no petroleum products, hydraulic fluid, fresh cement, sediments, sediment-laden water, chemicals, or any other toxic or deleterious materials are allowed to enter or leach into the stream or wetlands associated with the stream. Page 2 of 5 1 Washington HY17-`AULIC PROJECT APPROVAL , North Puget Sound Department of 16018 Mill Creek Boulevard FISH and RCW See appeal process at end of HPA Mill Creek,WA 98012-1296 Yr WILDLIFE 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date: September 10,2015 FPA/Public Notice#: N/A PROJECT LOCATIONS Location#1 11XX Hoquiam Ave NE WORK START: September 11, 2013 WORK END: September 10, 2015 WRIA:Waterbody: Tributary to: 08.0285 Honey Creek May Creek 1/4 SEC: Section: Township: Range: Latitude: Longitude: County: NE 1/4 10 23 N 05 E N 47.50279 W 122.14876 King Location#1 Driving Directions From 1405 south-bound,take Exit 5 (WA 900 E)toward Park Avenue N/Sunset Boulevard NE.Turn left onto NE Park Drive/WA 900, and continue on WA 900 E. Turn right on Hoquiam Avenue. Property is on left,just after NE 13th Place. APPLY TO ALL HYDRAULIC PROJECT APPROVALS This Hydraulic Project Approval pertains only to those requirements of the Washington State Hydraulic Code, specifically Chapter 77.55 RCW(formerly RCW 77.20). Additional authorization from other public agencies may be necessary for this project. The person(s)to whom this Hydraulic Project Approval is issued is responsible for applying for and obtaining any additional authorization from other public agencies(local, state and/or federal)that may be necessary for this project. This Hydraulic Project Approval shall be available on the job site at all times and all its provisions followed by the person(s)to whom this Hydraulic Project Approval is issued and operator(s)performing the work. This Hydraulic Project Approval does not authorize trespass. The person(s)to whom this Hydraulic Project Approval is issued and operator(s) performing the work may be held liable for any loss or damage to fish life or fish habitat that results from failure to comply with the provisions of this Hydraulic Project Approval. Failure to comply with the provisions of this Hydraulic Project Approval could result in a civil penalty of up to one hundred dollars per day and/or a gross misdemeanor charge, possibly punishable by fine and/or imprisonment. All Hydraulic Project Approvals issued under RCW 77.55.021 are subject to additional restrictions, conditions, or revocation if the Department of Fish and Wildlife determines that changed conditions require such action.The person(s)to whom this Hydraulic Project Approval is issued has the right to appeal those decisions. Procedures for filing appeals are listed below. MINOR MODIFICATIONS TO THIS HPA:You may request approval of minor modifications to the required work timing or to the plans and specifications approved in this HPA.A minor modification to the required work timing means up to a one-week deviation from the timing window in the HPA when there are no spawning or incubating fish present within the vicinity of the project.You may request subsequent minor modifications to the required work timing.A minor modification of the plans and specifications means any changes in the materials, characteristics or construction of your project that does not alter the project's impact to fish life or habitat and does not require a change in the provisions of the HPA to mitigate the impacts of the modification. Minor modifications do not require you to pay additional application Page 3 of 5 Washington HYT""'.AULIC PROJECT APPROVAL " - North Puget Sound r" Department of 16018 Mill Creek Boulevard eaFISH and RCW See appeal process at end of HPA Mill Creek,WA 98012-1296 WILDLIFE 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date: September 10,2015 FPA/Public Notice#: N/A fees or be issued a new HPA.To request a minor modification to your HPA, submit a written request that clearly indicates you are requesting a minor modification to an existing HPA. Include the HPA number and a description of the requested change and send by mail to:Washington Department of Fish and Wildlife, PO Box 43234, Olympia, Washington 98504-3234, or by email to HPAapplications@dfw.wa.gov. Do not include payment with your request. You should allow up to 45 days for the department to process your request. MAJOR MODIFICATIONS TO THIS HPA:You may request approval of major modifications to any aspect of your HPA. Any approved change other than a minor modification to your HPA will require issuance of a new HPA. If you paid an application fee for your original HPA you must include payment of$150 with your written request or request billing to an account previously established with the department. If you did not pay an application fee for the original HPA, no fee is required for a change to it.To request a major modification to your HPA, submit a written request that clearly indicates you are requesting a major modification to an existing HPA. Include the HPA number,check number or billing account number, and a description of the requested change. Send your written request and payment,if applicable, by mail to: Washington Department of Fish and Wildlife, PO Box 43234,Olympia,Washington 98504-3234. If you are charging the fee to a billing account number or you are not subject to the fee,you may email your request to HPAapplications@dfw.wa.gov.You should allow up to 45 days for the department to process your request. APPEALS INFORMATION If you wish to appeal the issuance,denial,conditioning,or modification of a Hydraulic Project Approval(HPA), Washington Department of Fish and Wildlife(WDFW)recommends that you first contact the department employee who issued or denied the HPA to discuss your concerns. Such a discussion may resolve your concerns without the need for further appeal action. If you proceed with an appeal,you may request an informal or formal appeal.WDFW encourages you to take advantage of the informal appeal process before initiating a formal appeal.The informal appeal process includes a review by department management of the HPA or denial and often resolves issues faster and with less legal complexity than the formal appeal process. If the informal appeal process does not resolve your concerns,you may advance your appeal to the formal process.You may contact the HPA Appeals Coordinator at(360)902-2534 for more information. A. INFORMAL APPEALS:WAC 220-110-340 is the rule describing how to request an informal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete informal appeal procedures.The following information summarizes that rule. A person who is aggrieved by the issuance,denial,conditioning,or modification of an HPA may request an informal appeal of that action.You must send your request to WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600 Capitol Way North, Olympia,Washington 98501-1091;e-mail to HPAapplications@dfw.wa.gov;fax to(360)902-2946;or hand-delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor.WDFW must receive your request within 30 days from the date you receive notice of the decision. If you agree, and you applied for the HPA, resolution of the appeal may be facilitated through an informal conference with the WDFW employee responsible for the decision and a supervisor. If a resolution is not reached through the informal conference,or you are not the person who applied for the HPA,the HPA Appeals Coordinator or designee will conduct an informal hearing and recommend a decision to the Director or designee. If you are not satisfied with the results of the informal appeal,you may file a request for a formal appeal. B. FORMAL APPEALS:WAC 220-110-350 is the rule describing how to request a formal appeal of WDFW actions taken under Chapter 77.55 RCW. Please refer to that rule for complete formal appeal procedures.The following information summarizes that rule. A person who is aggrieved by the issuance, denial,conditioning, or modification of an HPA may request a formal appeal of that action.You must send your request for a formal appeal to the clerk of the Pollution Control Hearings Boards and serve a copy on WDFW within 30 days from the date you receive notice of the decision.You may serve WDFW by mail to the Washington Department of Fish and Wildlife HPA Appeals Coordinator,600 Capitol Way North, Olympia,Washington 98501-1091; e-mail to HPAapplications@dfw.wa.gov;fax to(360)902-2946; or hand-delivery to the Natural Resources Building, 1111 Washington St SE, Habitat Program, Fifth floor.The time period for requesting a Page 4 of 5 0- . Washington HY; "AULIC PROJECT APPROVAL 'w North Puget Sound Department of 16018 Mill Creek Boulevard FISH and RCW Ti 5o u21-See appeal process at end of HPA Mill Creek,WA 98012-1296 WILDLIFE 425)775-1311 Issue Date: September 11,2013 Control Number: 131873-1 Project Expiration Date: September 10, 2015 FPA/Public Notice#: N/A formal appeal is suspended during consideration of a timely informal appeal. If there has been an informal appeal,you may request a formal appeal within 30 days from the date you receive the Director's or designee's written decision in response to the informal appeal. C. FAILURE TO APPEAL WITHIN THE REQUIRED TIME PERIODS: If there is no timely request for an appeal,the WDFW action shall be final and unappealable. ENFORCEMENT: Sergeant Chandler(34) P3 Habitat Biologist for Director Larry Fisher 425-313-5683 3— --WDFW CC: Page 5 of 5 AGENCY USE ONLY y.:Date received: L"US Army WAS H I N GTO N STATE ooff Engineers anle District Joint Aquatic Resources Permit Agency reference#: Application (JARPA) Form1'2 Tax Parcel#(s): USE BLACK OR BLUE INK TO ENTER ANSWERS IN THE WHITE SPACES BELOW. L Part 1—Project Identification 1. Project Name (A name for your project that you create. Examples: Smith's Dock or Seabrook Lane Development) [help] Pipers Bluff Water Line Crossing of Honey Creek Part 2—Applicant The person and/or organization responsible for the project. [helol 2a. Name(Last, First, Middle) O'Kane, Peter 2b. Organization (If applicable) WestPac Development, LLC 2c. Mailing Address (Street or PO Box) 7449 Mercer Way 2d. City, State, Zip Mercer Island, WA 98040 2e. Phone(1) 2f. Phone(2) 2g. Fax 2h. E-mail 206-619-2992 Peter@westpacdevelopment.com Part 3—Authorized Agent or Contact Person authorized to represent the applicant about the project. (Note: Authorized agent(s) must sign 11 b of this application.) [helol Additional forms may be required for the following permits: If your project may qualify for Department of the Army authorization through a Regional General Permit(RGP),contact the U.S.Army Corps of Engineers for application information(206)764-3495. If your project might affect species listed under the Endangered Species Act,you will need to fill out a Specific Project Information Form(SPIF)or prepare a Biological Evaluation. Forms can be found at R E C N q-= http://www.nws.usace.armv.mil/Missions/CivilWorks/Requlatorv/PermitGuidebook/EndangeredSpecies.aspx. If" Not all cities and counties accept the JARPA for their local Shoreline permits. If you need a Shoreline permit,contact the appropriate city or county government to make sure they accept the JARPA. cDEC0 2To access an online JARPA form with[help]screens,go to http://www.epermittinq.wa.gov/site/alias resourcecenter/iarpa iarpa form/9984/iarpa forrn.aspx. CITY OF ' ' 5°'' i For other help,contact the Governor's Office of Regulatory Assistance at 1-800-917-0043 or heloCa ora.wa.gov. PLANNING C71 i ir.)Iv JARPA Revision 2012.1 Page 1 of 12 3a. Name(Last, First, Middle) Summe, Amy 3b. Organization (If applicable) The Watershed Company 3c. Mailing Address (Street or PO Box) 750 6th St S 3d. City, State, Zip Kirkland, WA 98033 3e. Phone(1) 3f. Phone(2) 3g. Fax 3h. E-mail 425) 822-5242 425) 827-8136 asumme@watershedco.com Part 4—Property Owner(s) Contact information for people or organizations owning the property(ies)where the project will occur. Consider both upland and aquatic ownership because the upland owners may not own the adjacent aquatic land. [help] Same as applicant. (Skip to Part 5.) Repair or maintenance activities on existing rights-of-way or easements. (Skip to Part 5.) There are multiple upland property owners. Complete the section below and fill out JARPA Attachment A for each additional property owner. Cl Your project is on Department of Natural Resources (DNR)-managed aquatic lands. If you don't know, contact the DNR at (360) 902-1100 to determine aquatic land ownership. If yes, complete JARPA Attachment E to apply for the Aquatic Use Authorization. 4a. Name (Last, First, Middle) 4b. Organization (If applicable) 4c. Mailing Address (Street or PO Box) 4d. City, State, Zip 4e. Phone(1) 4f. Phone(2) 4g. Fax 4h. E-mail Part 5—Project Location(s) Identifying information about the property or properties where the project will occur. [help] El There are multiple project locations (e.g. linear projects). Complete the section below and use JARPA Attachment B for each additional project location. JARPA Revision 2012.1 Page 2 of 12 5a. Indicate the type of ownership of the property. (Check all that apply.) [help) Private Federal Publicly owned (state,county, city,special districts like schools,ports, etc.) Tribal Department of Natural Resources (DNR) —managed aquatic lands (Complete JARPA Attachment E) 5b. Street Address (Cannot be a PO Box. If there is no address,provide other location information in 5p.) [help] No address 5c. City, State, Zip(If the project is not in a city or town, provide the name of the nearest city or town.) [help] Renton, WA 98059 5d. County [help] King 5e. Provide the section, township, and range for the project location. [help] 1/ 4 Section Section Township Range NE 10 23N 5W 5f. Provide the latitude and longitude of the project location. [help] Example:47.03922 N lat./-122.89142 W long. (Use decimal degrees-NAD 83) 47.50279 N latitude/-122.14876 W longitude 5g. List the tax parcel number(s)for the project location. [help] The local county assessor's office can provide this information. 1023059002 5h. Contact information for all adjoining property owners. (If you need more space, use JARPA Attachment C.) [help] Name Mailing Address Tax Parcel #(if known) Bradley and Maria Adkins 5210 NE 12th St 0323059155 Renton, WA 98059 Cynthia and Douglas Moore 14432 SE 112th PL 1023059248 Renton, WA 98059 Henderson Fir Grove LLC 502 8th St NE#33 0323059028 Auburn, WA 98002 Christina and Guy Whorley 14433 SE 112th PL 1023059256 Renton, WA 98059 James Nonis 1228 Hoquiam Ave NE 0323059054 Renton, WA 98059 V__.______.._.______`__ Patrick Blodgett 5118 NE 12th St 0323059161 Renton, WA 98059 5i. List all wetlands on or adjacent to the project location. [help] Wetland A is a narrow wetland fringe along Honey Creek. JARPA Revision 2012.1 Page 3 of 12 5j. List all waterbodies (other than wetlands) on or adjacent to the project location. [helpl Honey Creek 5k. Is any part of the project area within a 100-year floodplain? [help] Yes ® No Don't know There is no mapped floodplain. 51. Briefly describe the vegetation and habitat conditions on the property. [help] Most of the parcel is forested upland, described in the Critical Areas Report(Sewall Wetland Consulting, Inc. 2013) as follows: "The majority of the site is covered with a mixed forest with conifers as the main component in the overstory. Douglas fir with several 4'-5' dbh specimens are the dominant species in the overstory with scattered big leaf maple and red alder. Understory species include hazelnut, [I]ndian plum, elderberry, sword fern, salmonberry, and stinging nettle." In the immediate project area, Wetland A, which fringes Honey Creek, contains "small pacific willow, salmonberry, lady fern, skunk, cabbage and manna grass" (Sewall Wetland Consulting, Inc. 2013). The buffer in the proposed water line corridor is mostly Himalayan blackberry with some salmonberry. As reported in the Critical Areas Report, "Honey Creek is a slow flowing mud and sand bottom stream as it flows northerly through the site. Trash, pallets and tires line the edge of the creek in this area, although otherwise, the stream appears relatively healthy with about 6" of flowing water across its channel. The stream is strongly influenced by stormwater outfalls upstream as flow in the channel was noted to quickly increase following a rain event." A second site visit on July 30, 2013 by The Watershed Company noted a dry channel. According to the May Creek Current and Future Conditions Report (King County 1995 in http://www.govlink.org/watersheds/8/reports/fish-maps/), adult cutthroat were observed from the mouth of Honey Creek up to RM 1.08; above that point, the gradient was too steep to accommodate cutthroat trout. The project site is located approximately 4,200 feet beyond that point. The same report documented juvenile coho salmon in Honey Creek upstream to "the base of the valley wall," approximately one mile downstream from the site. 5m. Describe how the property is currently used. [help] The subject parcel is currently undeveloped forest land. 5n. Describe how the adjacent properties are currently used. [helpi Most of the adjacent properties contain low-density single-family residential use. 5o. Describe the structures (above and below ground) on the property, including their purpose(s) and current condition. [help] The only known structures in the immediate project area are the powerlines running east-west just south of the proposed water line. 5p. Provide driving directions from the closest highway to the project location, and attach a map. Iheipl From 1405 south-bound, take Exit 5 (WA 900 E)toward Park Avenue N/Sunset Boulevard NE Turn left onto NE Park Drive/WA 900, and continue on WA 900 E. Turn right on Hoquiam Avenue Property is on left,just after NE 13th Place Part 6—Project Description 6a. Briefly summarize the overall project. You can provide more detail in 6b. [help] The applicant is developing a 30-lot plat on the subject parcel and three adjacent parcels. ''An 8"-diameter water line would be placed in a 16"-diameter, 30'-long steel casing spanning beneath Honey Creek and its associated wetland. The pipe would be placed in an excavated trench -5 feet below the bed of the stream and 3 to 5 feet below the wetland surface. The trench would be a maximum of 3 feet wide in the center of a 10'-wide cleared easement. The pipe would be bedded in imported crushed rock or controlled density fill, and then the excavated native stream or wetland soils would be placed back in the trench. Stream and wetland impacts would be JARPA Revision 2012.1 Page 4 of 12 temporary, and a revegetation plan would be implemented. No significant trees would be removed in the wetland or buffers. 6b. Describe the purpose of the project and why you want or need to perform it. [help] King County Water District#90 recently informed the applicant of a requirement to install a redundant water line as illustrated on the plans, even though it requires a stream and wetland crossing. 6c. Indicate the project category. (Check all that apply) [help] Commercial ® Residential Institutional Transportation El Recreational Maintenance Environmental Enhancement 6d. Indicate the major elements of your project. (Check all that apply) [help] Aquaculture Culvert Float Retaining Wall Bank Stabilization Dam/Weir Floating Home upland) CIBoat House Dike/ Levee/Jetty Geotechnical Survey Road Boat Launch Ditch Land Clearing Scientific Measurement Device Boat Lift Dock/ Pier Marina/ Moorage Stairs Bridge Dredging Mining El Bulkhead Stormwater facility Fence I Outfall Structure Swimming Pool El Buoy Ferry Terminal Piling/Dolphin Utility Line Channel Modification Fishway Raft Other: post-disturbance native planting 6e. Describe how you plan to construct each project element checked in 6d. Include specific construction methods and equipment to be used. [help] Identify where each element will occur in relation to the nearest waterbody. Indicate which activities are within the 100-year floodplain. The project will be constructed as follows: 1. Appropriate erosion and sedimentation control measures will be installed. 2. The site will be cleared by hand. 3. The trench will be dug with a mini excavator through the buffer, wetland and stream. [If the stream is not dry, work area isolation and fish removal will be conducted as indicated in 8a below.] 4. The trench will be bedded with gravel as shown on plans. 5. The pipe run will be installed, and back filled as shown on the plans 6. The thrust block will be installed at terminal point 7. The disturbed areas will be restored as shown on the restoration plan. 6f. What are the anticipated start and end dates for project construction? (Month/Year) [help] If the project will be constructed in phases or stages, use JARPA Attachment D to list the start and end dates of each phase or stage. Start date: October 1, 2013 End date: October 6, 2013 See JARPA Attachment D Or as soon as all permits are obtained and consistent with any applied timing restrictions 6g. Fair market value of the project, including materials, labor, machine rentals, etc. [help] Approximately $20,000 JARPA Revision 2012.1 Page 5 of 12 6h. Will any portion of the project receive federal funding? [help] If yes, list each agency providing funds. Yes ® No Don't know Part 7—Wetlands: Impacts and Mitigation Check here if there are wetlands or wetland buffers on or adjacent to the project area. If there are none, skip to Part 8.)[help] 7a. Describe how the project has been designed to avoid and minimize adverse impacts to wetlands. [help] Not applicable The water line required by King County Water District#90 will be installed across the stream and wetland close to perpendicular, and in an area of the wetland corridor that does not contain trees because of an adjacent powerline. The line will be installed in late summer, at the driest time of year, and the site will be stabilized and restored immediately following construction. 7b. Describe the purpose of the project and why you want or need to perform it. [help] See response to 6b above. 7c. Will the project impact wetland buffers? [help] Yes No Don't know 7d. Has a wetland delineation report been prepared? [help] If Yes,submit the report, including data sheets,with the JARPA package. Yes No 7e. Have the wetlands been rated using the Western Washington or Eastern Washington Wetland Rating System? [help] If Yes,submit the wetland rating forms and figures with the JARPA package. Yes No Don't know 7f. Have you prepared a mitigation plan to compensate for any adverse impacts to wetlands? [help] If Yes,submit the plan with the JARPA package and answer 7g. If No,or Not applicable,explain below why a mitigation plan should not be required. Yes No Not applicable 7g. Summarize what the mitigation plan is meant to accomplish, and describe how a watershed approach was used to design the plan. [help] Impacts to the wetland, stream and their buffers as a result of the project are only temporary and construction- related. The mitigation plan will result in restoration of the disturbed area to its pre-project or better condition using native shrubs, groundcovers, and the original material excavated from the stream and wetland. An additional 6"-thick layer of stream bed gravel will be placed in the stream channel. As noted above, the impacted area does not contain any trees because of adjacent power lines, so no trees will be disturbed or required in the mitigation plan, nor would they be suitable over or adjacent to the buried utility line. 7h. Use the table below to list the type and rating of each wetland impacted, the extent and duration of the impact, and the type and amount of mitigation proposed. Or if you are submitting a mitigation plan with a similar table, you can state (below) where we can find this information in the plan. [help] JARPA Revision 2012.1 Page 6 of 12 Activity(fill, Wetland Wetland Impact Duration Proposed Wetland drain, excavate, Name' type and area (sq. of impact3 mitigation mitigation area flood, etc.) rating ft. or type4 sq.ft. or category2 Acres) acres) Temporary Wetland A Cat II, 85 ft2 One R 85 ft2 excavate and then palustrine growing return fill scrub-shrub season Construction- Wetland A Cat II, 339 ft2 One R 339 ft2 related wetland palustrine growing clearing scrub-shrub season Wetland/stream Wetland A Buffer of Cat 969 ft2 One R 969 ft2 buffer clearing and buffer II wetland growing revegetation season If no official name for the wetland exists,create a unique name(such as'Wetland 1"). The name should be consistent with other project documents,such as a wetland delineation report. 2 Ecology wetland category based on current Westem Washington or Eastern Washington Wetland Rating System.Provide the wetland rating forms with the JARPA package. 3Indicate the days,months or years the wetland will be measurably impacted by the activity.Enter"permanent"if applicable. 4 Creation(C),Re-establishment/Rehabilitation(R),Enhancement(E),Preservation(P),Mitigation Bank/In-lieu fee(B) Page number(s)for similar information in the mitigation plan, if available: See Sheet 2 of the Mitigation Plan 7i. For all filling activities identified in 7h, describe the source and nature of the fill material, the amount in cubic yards that will be used, and how and where it will be placed into the wetland. [helps Wetland will be back-filled in the amount of 19.3 CY— 11.3 CY will be the suitable native material just excavated from the trench and 8 CY will be imported crushed surfacing top course material for bedding the new pipe. Materials will likely be placed and compacted with a tracked excavator. 7j. For all excavating activities identified in 7h, describe the excavation method, type and amount of material in cubic yards you will remove, and where the material will be disposed. [helpl Wetland will be excavated in the amount of 20.1 CY, consisting of the native wetland soil (described as a sapric muck in the upper 12 inches). Materials will likely be removed with a tracked excavator. Part 8—Waterbodies (other than wetlands): Impacts and Mitigation In Part 8, "waterbodies" refers to non-wetland waterbodies. (See Part 7 for information related to wetlands.) [helpl Check here if there are waterbodies on or adjacent to the project area. (If there are none, skip to Part 9.) 8a. Describe how the project is designed to avoid and minimize adverse impacts to the aquatic environment. help] Not applicable The applicant worked with King County Water District#90 in an attempt to waive their requirement to install this redundant line, which would have avoided all impacts to the stream and wetland. That attempt was unsuccessful, so minimization is accomplished through implementation of the following: Crossing the stream and wetland at a very narrow point Crossing the stream and wetland in an already impacted powerline corridor Planning to cross the stream in the late summer months when the stream is normally dry. If water is present in the creek during the time of construction, the area will be isolated from flow, and any fish that may be present will be removed prior to in-water work. Establishing appropriate erosion and sedimentation control measures prior to in-wetland/stream work Limiting the width of the trenching to the maximum extent practicable Immediately stabilizing and restoring the disturbed areas consistent with appropriate erosion control plan, native plantings, and stream substrate. Because the stream is well upstream from any priority species habitat, the primary potential impact on sensitive fish species would be from turbidity. Turbidity will be minimized by working during a period when the creek is JARPA Revision 2012.1 Page 7 of 12 dry or isolating the work area from stream flows. 8b. Will your project impact a waterbody or the area around a waterbody? [help] Yes No 8c. Have you prepared a mitigation plan to compensate for the project's adverse impacts to non-wetland waterbodies? [help] If Yes,submit the plan with the JARPA package and answer 8d. If No,or Not applicable,explain below why a mitigation plan should not be required. Yes No Not applicable 8d. Summarize what the mitigation plan is meant to accomplish. Describe how a watershed approach was used to design the plan. If you already completed 7g you do not need to restate your answer here. [help] See response to 7g above. 8e. Summarize impact(s)to each waterbody in the table below. [help] Amount of material Area (sq. ft. or Activity (clear,Duration of (cubic yards)to be linear ft.) of dredge,fill, pile Waterbody Impact 2 impact3 placed in or waterbody drive, etc.) name location removed from directly waterbody affected Excavate trench Honey Creek in the Temporary (-1 5.7 cy3 23 ft2 in stream channel stream week) 3 linear feet) Backfill trench in Honey Creek in the Temporary (-1 5.4 cy3 23 ft2 stream channel stream week) 3 linear feet) after pipe placement Placement of Honey Creek In the Permanent 2 cy3 113 ft2 streambed gravel stream See Part 7 above for adjacent wetland and stream/wetland buffer impacts 1 If no official name for the waterbody exists,create a unique name(such as"Stream 1")The name should be consistent with other documents provided. 2Indicate whether the impact will occur in or adjacent to the waterbody. If adjacent,provide the distance between the impact and the waterbody and indicate whether the impact will occur within the 100-year flood plain. 3Indicate the days,months or years the waterbody will be measurably impacted by the work. Enter"permanent"if applicable. 8f. For all activities identified in 8e, describe the source and nature of the fill material, amount(in cubic yards) you will use, and how and where it will be placed into the waterbody. [help] The stream will be back-filled in the amount of 5.4 CY—3.6 CY will be the suitable native material just excavated from the trench and 1.8 CY will be imported crushed surfacing top course material for bedding the new pipe. Materials will likely be placed and compacted with a tracked excavator. 8g. For all excavating or dredging activities identified in 8e, describe the method for excavating or dredging, type and amount of material you will remove, and where the material will be disposed. [help] Excavation would occur using a land-based excavator (trackhoe) and hand tools. Native stream substrate (5.7 cy3 of sandy loam with some small-diameter gravel and a few cobbles) and adjacent wetland soils (see Part 7 above) will be temporarily removed. Material not reused on site will be disposed of at an approved upland location. Part 9—Additional Information Any additional information you can provide helps the reviewer(s) understand your project. Complete as much of this section as you can. It is ok if you cannot answer a question. JARPA Revision 2012.1 Page 8 of 12 9a. If you have already worked with any government agencies on this project, list them below. [heIo1 Agency Name Contact Name Phone Most Recent Date of Contact City of Renton Jan Illian 425-430-7216 8/22/13 King County Water District#90 Josh Deraitus 425-766-7918 8/22/13 9b. Are any of the wetlands or waterbodies identified in Part 7 or Part 8 of this JARPA on the Washington Department of Ecology's 303(d) List? [helpl If Yes,list the parameter(s) below. If you don't know, use Washington Department of Ecology's Water Quality Assessment tools at: http://www.ecy.wa.gov/programs/wq/303d/. Yes ® No 9c. What U.S. Geological Survey Hydrological Unit Code (HUC) is the project in? rhelpi Go to http://cfpub.epa.qov/surf/locate/index.cfm to help identify the HUC. 17110012 9d. What Water Resource Inventory Area Number (WRIA#) is the project in? [helps Go to http://www.ecv.wa.gov/services/ais/maps/wria/wria.htm to find the WRIA#. WRIA 8 9e. Will the in-water construction work comply with the State of Washington water quality standards for turbidity? [helot Go to http://www.ecy.wa.gov/programs/wq/swas/criteria.html for the standards. Yes No Not applicable 9f. If the project is within the jurisdiction of the Shoreline Management Act, what is the local shoreline environment designation? [helpi If you don't know, contact the local planning department. For more information,go to: http://www.ecy.wa.gov/programs/sea/sma/laws rules/173-26/211 desianations.html. Rural Urban Natural Aquatic Conservancy Other 9g. What is the Washington Department of Natural Resources Water Type? [help] Go to http://www.dnr.wa.gov/BusinessPermits/Topics/ForestPracticesApplications/Pages/fp watertvpina.asox for the Forest Practices Water Typing System. Shoreline (Puget Sound)Fish Non-Fish Perennial El Non-Fish Seasonal Stream is mapped as"Unknown" 9h. Will this project be designed to meet the Washington Department of Ecology's most current stormwater manual? rhelpl If No, provide the name of the manual your project is designed to meet. Yes ® No Name of manual: 2009 King County Surface Water Design Manual, with Amendments (equivalent to Ecology's 2005 manual) 9i. Does the project site have known contaminated sediment? [helps If Yes, please describe below. JARPA Revision 2012.1 Page 9 of 12 Yes ® No 9j. If you know what the property was used for in the past, describe below. [help The immediate project area was undeveloped forest. 9k. Has a cultural resource (archaeological) survey been performed on the project area? [help] If Yes, attach it to your JARPA package. Yes ® No 91. Name each species listed under the federal Endangered Species Act that occurs in the vicinity of the project area or might be affected by the proposed work. [help/ The nearest documented occurrences of federally listed species (according to PHS on the Web and WRIA 8, http://www.govlink.org/watersheds/8/reports/fish-maps/) are more than 2 miles downstream of the project site in May Creek. 9m. Name each species or habitat on the Washington Department of Fish and Wildlife's Priority Habitats and Species List that might be affected by the proposed work. [help] According to PHS on the Web, the following species and habitat may be in the project area or affected by the proposed work: Priority wetland (-200 feet downstream of the project] The nearest mapped priority salmonids are more than 4,200 feet downstream—coast resident cutthroat trout and coho salmon. Part 10—SEPA Compliance and Permits Use the resources and checklist below to identify the permits you are applying for. Online Project Questionnaire at http://apps.ecy.wa.gov/opas/. Governor's Office of Regulatory Assistance at(800) 917-0043 or helpna ora.wa.gov. For a list of addresses to send your JARPA to, click on agency addresses for completed JARPA. 10a. Compliance with the State Environmental Policy Act (SEPA). (Check all that apply.) [help/ For more information about SEPA,go to www.ecy.wa.gov/programs/sea/sepa/e-review.html. A copy of the SEPA determination or letter of exemption is included with this application. A SEPA determination is pending with lead agency). The expected decision date is I am applying for a Fish Habitat Enhancement Exemption. (Check the box below in lob.) [help] This project is exempt (choose type of exemption below). Categorical Exemption. Under what section of the SEPA administrative code (WAC) is it exempt? Other: SEPA is pre-empted by federal law. 10b. Indicate the permits you are applying for. (Check all that apply.) [he pl LOCAL GOVERNMENT Local Government Shoreline permits: Substantial Development Conditional Use Variance Shoreline Exemption Type (explain): JARPA Revision 2012.1 Page 10 of 12 Other city/county permits: Floodplain Development Permit Critical Areas Ordinance STATE GOVERNMENT Washington Department of Fish and Wildlife: Hydraulic Project Approval (HPA) Fish Habitat Enhancement Exemption—Attach Exemption Form Effective July 10, 2012, you must submit a check for$150 to Washington.Department of Fish and Wildlife, unless your project qualifies for an exemption or alternative payment method below. Do not send cash. Check the appropriate boxes: 150 check enclosed. (Check# 2193 Attach check made payable to Washington Department of Fish and Wildlife. Charge to billing account under agreement with WDFW. (Agreement# My project is exempt from the application fee. (Check appropriate exemption) HPA processing is conducted by applicant-funded WDFW staff. Agreement # Mineral prospecting and mining. Project occurs on farm and agricultural land. Attach a copy of current land use classification recorded with the county auditor,or other proof of current land use.) Project is a modification of an existing HPA originally applied for, prior to July 10, 2012. HPA# Washington Department of Natural Resources: Aquatic Use Authorization Complete JARPA Attachment E and submit a check for$25 payable to the Washington Department of Natural Resources. Do not send cash. Washington Department of Ecology: Section 401 Water Quality Certification FEDERAL GOVERNMENT United States Department of the Army permits (U.S. Army Corps of Engineers): Section 404 (discharges into waters of the U.S.) Section 10 (work in navigable waters) United States Coast Guard permits: General Bridge Act Permit Private Aids to Navigation (for non-bridge projects) JARPA Revision 2012.1 Page 11 of 12 Part 11 Authorizing Signa.u,'es Signatures are required before submitting the JARPA package. The JARPA package includes the JARPA form, project plans, photos, etc. [helol 11 a. Applicant Signature (required) [helpl I certify that to the best of my knowledge and belief, the information provided in this application is true, complete, and accurate. I also certify that I have the authority to carry out the proposed activities, and I agree to start work only after I have received all necessary permits. I hereby authoriz the agent named in Part 3 of this application to act on my behalf in matters related to this application. .e( (initial) By initialing here, I state that I have the authority to grant access to the property. I also give my consent to the permitting agencies entering-tJ a property where the project is •cated to inspect the project site or any work related to the project. L i—' (initial) 4 Peter O'Kane Applicant Printed Name Appli« nt Signature Dat 11 b. Authorized Agent Signature [helps I certify that to the best of my knowledge and belief, the information provided in this application is true, complete, and accurate. I also certify that I have the authority to carry out the proposed activities and I agree to start work only after all necessary permits have been issued. Amy Summe 8/26/2013 Authorized Agent Printed Name Authorized Agent Signature Date 11 c. Property Owner Signature (if not applicant). [help Not required if project is on existing rights-of-way or easements. I consent to the permitting agencies entering the property where the project is located to inspect the project site or any work. These inspections shall occur at reasonable times and, if practical, with prior notice to the landowner. Property Owner Printed Name Property Owner Signature Date 18 U.S.0§1001 provides that:Whoever,in any manner within the jurisdiction of any department or agency of the United States knowingly falsifies,conceals,or covers up by any trick,scheme,or device a material fact or makes any false,fictitious,or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false,fictitious,or fraudulent statement or entry,shall be fined not more than$10,000 or imprisoned not more than 5 years or both. If you require this document in another format,contact the Governor's Office of Regulatory Assistance(ORA)at(800)917-0043. People with hearing loss can call 711 for Washington Relay Service. People with a speech disability can call(877)833-6341. ORA publication number: ENV-019-09 rev.06-12 JARPA Revision 2012.1 Page 12 of 12 EXHIBIT A The South 91.2 feet of the North 121.2 feet of the Westerly 1/3rd of the North half of the Northeast quarter of the Northwest quarter of the Northeast quarter of Section 10, Township 23 North, Range 5 East, W.M., in King County, Washington; Except the West 30 feet for road as conveyed by Deed recorded under Recording No. 3263478. Situate in the County of King, State of Washington. End of Schedule A RECEIVED DEC 022013 CSTY °ENTC, e PLANNING DIVISIGI, Page 2 EXHIBIT A The Westerly one-third of the following described tract: The North half of the Northeast quarter of the Northwest quarter of the Northeast quarter of Section 10, Township 23 North, Range 5 East, W.M., in King County, Washington; Except the South 117 feet thereof; and Except the West 30 feet for road; and Except the North 30 feet for road; and Except the North 91.2 feet of the above described Westerly one-third. Situate in the County of King, State of Washington. End of Schedule A RECEPi r. DEC 0 2 2013 CEP, F a Page 2 EXHIBIT A The Easterly 2/3 of the following described tract: The North half of the Northeast quarter of the Northwest quarter of the Northeast quarter of Section 10, Township 23 North, Range 5 East, W.M., in King County, Washington; Except the South 117 feet thereof; Except the West 30 feet for road; Except the North 30 feet for road. Situate in the County of King, State of Washington. End of Schedule A RECEIVFD DEC 022013 are OF RENTRENTr,r,? PLANNING DWI!, Page 2 EXHIBIT A The Southerly 117 feet of the North half of the Northeast quarter of the Northwest quarter of the Northeast quarter of Section 10, Township 23 North, Range 5 East, W.M., in King County, Washington; Except the West 30 feet road; Together with the North 15 feet of the South half of the Northeast quarter of the Northwest quarter of the Northeast quarter of Section 10, Township 23 North, Range 5 East, W.M., in King County, Washington; Except the West 30 feet thereof conveyed to King County for road by deed recorded under Recording No. 3263478. Situate in the County of King, State of Washington. End of Schedule A 022013 RECEIVE; DEC 1 PINTrmo Page 2 RECEIPT EG00015938 ryof trY Transaction Date: November 12, 2013 BILLING CONTACT PETER O'KANE WESPAC DEVELOPMENT LLC 7449 W MERCER WAY MERCER ISLAND, WA 98040 REFERENCE NUMBER FEE NAME TRANSACTION PAYMENT AMOUNT PAID TYPE METHOD LUA13-001568 PLAN-Variance Fee Payment Check#2412 1,200.00 Technology Fee Fee Payment Check#2412 36.00 SUB TOTAL 1,236.00 TOTAL 1,236.00 Printed On: 12/10/2013 Prepared By:Rocale Timmons Page 1 of 1 tJ1 w N F n n N z 0 C 0 D 2 O D ' W 0 Ozzm >=0=rnm Z0 cnNO 0z T - rn m cn . G topOIrnn O -< Z v Z-I D f7O C mpDM D7v Z v OTOzrnm nm _= nn cn0= i ppb --I mm m p D-Irn. n O= r- Ln v'O cn0 = V)0vcn-I Zm DZ v z 0= D D O rn m Z Z N mDr=0 vnm7v cnD mX p= nDD Z-iZ= Zm z0 rnD 0n DT mz0D rn Gar nD n Z cn 00 ZZ M rn z = ;0 (') m ;0 m (7 Z ZED DmmM v'm V) _nz On ppm Z rnm MNv v' y to Nr) iDp mCp m 0 0 0 mrn0-- iD -nIrnN z OTr Iv rnN = C)Z—n2-ni N m—i D z O < m Z0 m NU Z.t nzrrnOC OZ N m 0 -< D z rn r^ 7v to Z D pZ DrDn. 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N N = `— w r3.tX. 3 m m r•t N ref: Q_ X" 3 O m 0 M m w ` 3 rm-t ' r*. rt _V m w = : m 0 w a. -0 -0 a. 3 -0 a r* 3 -1 w W c c 3 c 3 0 3 CLCAw m° 0 A na n-3 •am p 0 -1 OQ - m ro w cl Z Z n o— '3 -D p ly • p W N A a\ Ln .p w N - w N - < 0 O v O cn w N - 0 n (D a. ro — N (p • w + 17 . t D ' w — w -p N y — !3D -V r* rt w y (n p' fD (D H p "O m m ' (A ° y W w 3 rrt rt < m m co c O c c w D o n o c - ro - - N _ rt _ o m 3 ° w ° m f W , a w y — 'v p N r-r \ n ro . m= ro n 3 m 3 0 ro ro 3 '0 n - o . c w ro ' p r* n— n r - o o -v m -v • -v - — — m-0 C w w y ro m C o rt c 3 3 m ro Q•Q ' m ' rt rt - . a O. w O - N• _ - Ln p — w ' a y w w <' w U -v > > 3 m m D A 3 m LA ° a m a - v r* n a_ r* m OQ N QQ 3-0 i ' r + -• r + Vi n ' -1 rt 'Z W © 3 _+: ° a. 3 r r* 0 W "! w ' ro 0wCnro 'Z ro N O 0- rR 3 O rt =T O Ao m n w 0- n W c - rt w 3 w n ro , ro T ro r-t o o w w - w r* W n =: 3 m ro° m w - m 3 r ro !D '* _ z' -{i c O? m = N tD n m - v+ n rt rt ro rt O o\ rr w w w O 3 rr : .. = S. n c T N =' 3' M' \ o m ro m p rr O m - N -0 p p m , C a_ N= O m M 0nN -' 3 0 O A 7r m (D O m n 5 _ r* N n o- m ro - -t, r* , O 'v 3 c 3 ' a- rr 0 r-+ N• ' < w w -• w N T n T a m O m p m rt '0 3 O v H - p o„ PA m a. • 3 0 m a o y '- 3 0• - o a n - v° cra c -°_ g w w r+ w H a o a °' w N Z * O < a. m 3 C° oQ o d m rt ro - y, , ro a cD rr m ' 0 < < rt (D -•, r* 0 w a ' rt ` ' ° w N rr o m p 3 c 3ro 3 a_ A m ro N m , rr r_* rt O O o No — 1:' w a w rr m w ro N N -1 ro X- m w a_ p O - n m <' N 3 ro w <• O a T O o 3 n o rt -1 - _• a- 7 ro 3 - ' 0 c s' cn a• -0 n' w y c rt - rt N m e <• O ro a_ ' , - A. m N_ a S O ' C Ci m m N m O ro m a p N a_ .. ro _. m ro as cn -v n a_ O w m r-•r; Q• O O -«, -0 3 a n a. , N y — 3 a va 3 n W n -, ro - y• W _*, 2 -. ro O n m rt w o ro 0- c _. r w 3- m n m a -0 ro O oQ w p 3 3 -z ' ro p c a o m - <_. w r•* W v rr < O ro on a_ m rt A w O 3 a_ N n -0 3 N S w N n n O C w v OQ 3 ? 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DATE DESCRIPTION Z c m m m n m D 1 07-31-13 REVIEW SET N C0oD- m_ m o Z n O z C N00N n N Cl m N m Ln r w 4= 3 = G -n --n DATE PRINTED BY FILENAME 7/3/2013 MARINA FRENCH 130720_PIPERBLUFF MITIGATION.DWG z A-, m m ran mD i\ O Zz ft CoC 0vz m bm= 7® \ . i F t / F 1 Tm Y l v I m Z m m m D D O333Z 1 3. !,> O O O ° A D D m z z o v v m° c m 33z z o [7 C3 v T T n D mr z m 3v CAN Z w mD -n m U2 CA n cn o 0 O o cr = n BY PIPERTS BLUFF c> VQ N N N y rr Gi N nN 0 v v NO OD w o W c i--- C7 7 C / a MF WETLAND & CREEK RESTORATION PLAN PREPARED FOR: WESTPAC DEVELOPMENT, LLC 1 166 HOQUTAM AVE NE, RENTON WA KING COUNTY, WA 98006 c::D ems. D m II Ln C) r- CD O 0 o N O O / o O zr n / O 3 O = O SUBMITTALS & REVISIONS m Z m "' NO. DATE DESCRIPTION Z C m m m ni r- ZZ N 1 07-31-13 REVIEW SET w C _ O t73 n0om 00 w X Z O _z 0m7a h p "' N n N m C) C)u, to . 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