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Home My WebLink AboutM_Returned_Mail_26_181127.pdfDEPARTMENTOFCOMMUNITY&ECONOMICDEVELOPMENTPlanningDivision1055SouthGradyWay,6thFloorIRenton,WA98057I425-430-7200,ext.2www.rentonwa.govRFCEVEDNOV2720187988500000--- - •JUNORMICHAELV1500S18THSTRENTON,WA98055NOTICEOFAPPLICATIONANDPROPOSEDDETERMINATIONOFNON-SIGNIFICANCEfDNS)AMasterApplicationhasbeenfiledandacceptedwiththeDepartmentofCommunity&EconomicDevelopment(CED)—PlanningDivisionoftheCityofRenton.ThefollowingbrieflydescribestheapplicationandthenecessaryPublicApprovals.DATEOFNOTICEOFAPPLICATION:November19,2018PROJECTNAME/NUMBER:PR1S-000551ThunderHillsSewerInterceptorI!ij!Rehabilitation/LUA12-000678,ECFEIIiLiPROJECTLOCATION:GatedentranceatGrantAveSandS18thStandrunsthelengthofThunderHillsCreekNorthjustuptobeforeitgoesunder1-405APPLICANT/PROJECTCONTACTPERSON:DaveChristensen,CityofRenton-WastewaterUtility/Dchristensen@Rentonwa.gov/1055SGradyWay,Renton,WA98057LOCATIONWHEREAPPLICATIONMAYBEApplicantdocumentsareavailableonlinethroughtheCityofRentonREVIEWED:DocumentCenterwebsite.Seealsohttps://bit.ly/2QQkU3QPROJECTDESCRIPTION:TheapplicantisrequestingEnvironmental(SEPA)Reviewforimprovementstoapproximately2,050linealfeetofsewermain.ThesewerlinewouldbeimprovedthroughamixofparallelHDPEpipelinesandrehabilitationoftheexistinglineusingacured-in-placeliningtechnology.Inaddition,improvementsareproposedtothe37,574squarefootmaintenanceaccessroadandslopestabilitymeasuresareproposedtoalleviateerosioninthefuture.TheprojectsiteincludesThunderHillsCreek,atypeNpstreamwitha75-footbuffer,andseventributarystreams,allclassifiedasTypeNsstreamswith50-footbuffers.Therearesixwetlands(WetlandsA-F).Ofthesixwetlands,four(WetlandsB,D,E,andF)wouldhaveastandardbufferof100feet,WetlandAwouldhaveastandardbufferof75feet,andWetlandCwouldhaveastandardbufferof50feet.Theproposalwouldinclude20,703squarefeetoftemporarywetlandandstreambufferimpacts,1,332squarefeetofwetlandimpacts(WetlandEandF),and41,000permanentbufferimpactsincludingtheremovalof36trees.TheprojectsiteincludesRM-FandR-8zoningdesignations.AccesstothesitewouldbeprovidedviaagatedentranceoffofGrantAveSand518thStaswellasanexistingentranceattheclearedPSEeasementaccessalong$18thSt.DATEOFAPPLICATION:November15,2018NOTICEOFCOMPLETEAPPLICATION:November19,2018OPTIONALDETERMINATIONOFNON-SIGNIFICANCE(DNS):AstheLeadAgency,theCityofRentonhasdeterminedthatsignificantenvironmentalimpactsareunlikelytoresultfromtheproposedproject.Therefore,aspermittedundertheRCW43.21C.110,theCityofRentonisusingtheOptionalDNSprocesstogivenoticethataDNSislikelytobeissued.