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HomeMy WebLinkAboutShoreline Exemption Approval 15-000694CITYOFANDECONOMICDEVELOPMENT—‘—“R..entoriPLANNINGDIVISIONCERTIFICATEOFEXEMPTIONFROMSHORELINESUBSTANTIALDEVELOPMENTDATE:October21,2015PROJECTNUMBER:LUA15-000694,SMEPROJECTNAME:BarbeeMillInvasivesRemovalShorelineExemptionPROJECTMANAGER:AngeleaWeihs,AssistantPlannerAPPLICANT:PatrickDonohue325118thAveSE,#204Bellevue,WA98005PROJECTLOCATION:4101LAKEWASHINGTONBLVDNPROJECTDESCRIPTION:TheapplicantisrequestingaShorelineExemptiontoremoveapproximately500linearfeetoftheClassBinvasive,Bohemianknotweed,withinthetractslocatedintheBarbeeMilldevelopment(Seeexhibit2).TheBohemianknotweedstandsaretypically10to15feetindepth.Theknotweedwillberemovedusingacommercialsprayer(Imazapyr)bythecontractor,AppliedEcology.ThisisoneofthesamecontractorsandherbicideusedbytheCityinMayCreekTrailsPark.Theapplicantisalsorequestingtoremoveother(secondary)invasivevegetation,includingmorningglory,blackberry,buttercup,horsetail,andmiscellaneousweeds,suchasdandelion,herb-Robert,andbittercress,etc.TheapplicantproposestoremovetheotherinvasivespeciesusinghandtoolsandcontinuedquarterlyhighmowingbyBarbeeMill’slandscapecontractor;however,citystaffdoesnotagreethatmowingisanappropriatemethodofcontrollingtheinvasivesandrecommendsaconditionofapprovalthatnomowingshallbeusedtocontrolinvasives,onlyhandgrubbingandcommercialherbicidespray.Theproposedvegetationremovaliswithinthe100footshorelinebufferforMayCreek.TheBohemianknotweedresidesonthebanksofMayCreek.Allfourformsofknotweedareknowntocauseerosionofstreamandriverbanks.Theapplicantisnotproposinganyvegetationremovalatorbelowtheordinaryhighwatermark.Anydisturbancesofsoilbelowtheordinaryhighwatermarkwillbestrictlyavoided.Theapplicantproposestobeginworkimmediatelyfollowingpermitapproval.Asproposed,thevegetationremovalwouldbeaccomplishedinthreephases.Thefirstphasewouldinvolvesprayingtheknotweedwiththecommercialsprayer.Thiswouldtakeapproximately1to2days.ThesecondphasewouldinvolvecleaningupthedownedknotweedaftertheabovegroundstalkshavePagelof3 CityofRentonDeportmentofCommunity&EconomicDevelopmentCertificateofExemptionfromShorelineSubstantialDevelopmentBarbeeMillInvosivesRemovalShorelineExemptiontUA15000694,SMEfullydied,currentlyestimatedaslatewinterthroughearlyspringof2016.Thethirdphasewouldinvolvetrimmingblackberrytothegroundduringthenext12months.Theapplicantproposesyear-to-yearmaintenanceforthenextsevenyearsinordertoassuredestructionanddecayofestablishedknotweedstands.Inthesecondandthirdyear,knotweedwillbemitigatedbyasecondorthirdapplicationoflmazapyrforstandsgreaterthan50stems.Standsfewerthan50stemsshallbecontrolledthroughinjectionofa4-6%solutionofGlyphosate.TheapplicanthasbeentrainedandcertifiedbyKingCountyinGlyphosateapplication.Knotweedrootsbelowgroundwillbelefttodecay.Followingthefirstand/orsecondyearofknotweedcontrol,BarbeeMillwillbegintoaddressthesecondaryinvasives.Theapplicant’sproposalspecificallyexcludesdiggingordisturbingtherootstructureofknotweed.Removalofthesecondaryinvasivesmayinvolveminorsoildisturbanceduetoshallowdiggingwithhandtoolstoremovetherootsofmorningglory,blackberry,buttercup,horsetail,andothers.Followingdecompositionoftheknotweed,theapplicantproposestoreplantwithstrawberry,salalandnootkarose.Wheelbarrows,dumpsters,andtowedtrailerswillbeusedtohaulawaythemajorrefuse.Minorrefusewillbeplacedinresidentstrashbinsorrecyclebinsasappropriate.SEC-TWN-R:NW32245IIGALDESCRIPTION:Tracts“A”,“B”,and“I”,asshownonPlatofBarbeeMillasrecordedinKing(KingCountyAssessor)CountyPlatsunderrecordingnumber20080208000182WATERBODY:MayCreekAnexemptionfromaShorelineManagementSubstantialDevelopmentPermitisherebyApprovedwithConditions*ontheproposedprojectinaccordancewithRMC4.9.190C‘ExemptionfromPermitSystem’andforthefollowingreasons:RentonMunicipalCode,Section4.9.190C.13:RemovalorControlofAquaticNoxiousWeeds:Theprocessofremovingorcontrollinganaquaticnoxiousweed,asdefinedinRCW17.26.020,throughtheuseofaherbicideorothertreatmentmethodsapplicabletoweedcontrolthatarerecommendedbyafinalenvironmentalimpactstatementpublishedbytheDepartmentofAgricultureortheDepartmentofEcologyjointlywithotherStateagenciesunderchapter43.21CRCW.Theproposeddevelopmentis:ConsistentwiththepoliciesoftheShorelineManagementAct.ConsistentwiththeguidelinesoftheDepartmentofEcologywherenoMasterProgramhasbeenfinallyapprovedoradoptedbytheDepartment.ConsistentwiththeCityofRentonShorelineMasterProgram.Page2of3 CityofRentonDeportmentofCommunity&EconomicDevelopmentCertflcateofExemptionfromShorelineSubstantiolDevelopmentDarbeeMillInvasivesRemovolShorelineExemptionLUAI5DDO&94,SMECONDITIONS:PLN-AdministrativeDecisionCondition1.Nomowingshallbeusedtocontrolinvasivevegetation,onlyhandgrubbingandcommercialherbicidespray.PLN-AdministrativeDecisionCondition2.Theapplicantshallpostsignsalongareasofherbicideapplicationnotifyingthepublicthattheknotweedwillbesprayedwithcommercialherbicide.PLN-AdministrativeDecisionCondition3.Noworkshalloccurbelowtheordinaryhighwatermark.PLN-AdministrativeDecisionCondition4.NovegetationremovalshallbepermittedoutsideofBarbeeMillPlat.SIGNATURE&DATEOFDECISION:ID-1-1JenniferHenning,PlanningDirectorDateVTheadministrativelandusedecisionwillbecomefinalifnotappealedinwritingtogetherwiththerequiredfeeto:HearingExaminer,CityofRenton,1055SouthGradyWay,Renton,WA98057onorbefore5:00pm,onNovember04,2015.AdditionalinformationregardingtheappealprocessmaybeobtainedfromtheRentonCityClerk’soffice,RentonCityHall-7thFloor,(425)430-6510.Attachments:Vicinity/NeighborhoodDetailMap,SitePlanPage3of3 EXHIBIT1BarbeeMillInvasivesRemovalShorelineExemptionProjectNarrativeSeptember6,2015ProposedPlantstoberemovedPrimaryobjectiveistoremoveapproximately500linearfeetoftheClassBinvasive,BohemianKnotweed.Standsaretypically10to15feetindepth.Secondaryobjectiveistoobtainapprovaltoremoveotherinvasives:particularlymorningglory,blackberry,buttercup,horsetailandmiscellaneousweeds,suchasdandelion,herb-Robert,bittercress,etcetera.Removalmethodsaredescribedbelow.LocationofremovalindetailSeeattachedcharts.Allmeasurementsareapproximateandsubjecttochangeasplantsmigrate.EquipmentUsedtoRemoveTheinitialequipmentusedonknotweedwillbeacommercialsprayerbythecontractor,AppliedEcology.ThisisoneofthesamecontractorsandherbicideusedbytheCityinMayCreekTrailsPark,directlyadjacenttotheBarbeeMillcommunity.ThesprayitselfwillbeImazapyr,orotherherbicideasdirectedbytheCityofRenton.TheequipmentusedtomitigatethesecondaryinvasiveswillbehandtoolsandthecontinuedquarterlyhighmowingbyBarbee’slandscapecontractor.WiththeCity’spermissionanddirection,acommercialspraymaybeemployedonthedeeperthicketsofthesesecondaryinvasives.Wemustemphasize,ourprimaryandimmediateobjectiveisremovalofBohemianKnotweed.Wheelbarrows,dumpsters,andtowedtrailerswillbeusedtohaulawaythemajorrefuse.Minorrefusewillbeplacedinresidents’trashbinsorrecyclebins,asappropriate. StreamandApproximateSetbacksAsweunderstandittheintentofWashingtonState’sForestsandFishLawis:toprotect“TreesandvegetationalongstreamsprovidingcriticalshadeandhabitatforWashington’sfishandwildlife.”(takenfromWashingtonForestsProtectionAssociation)Wetrustthatweallsharethisintentincommon.TheshorelinebufferforMayCreekis100feet.Theproposedinvasivevegetationremovalwillbelocatedwithintheshorelinebuffer.Regardingtheexistingsetback,ourBohemianKnotweedresidesonthebanksofMayCreek.AllfourformsofKnotweedareknowntocauseerosionofstreamandriverbanks,whichisasignificantreasonwhyweareseekingtocarefullyremoveit.ItisourplantorefrainfromanymitigationeffortsatorbelowMayCreek’sordinaryhighwatermark.TimeFrameforInitialWorkTheinitialworkhasthreephases.Thefirsttwowillfocusontheprimaryobjective,Knotweed.Thetimingofthefirstphaseiscritical:thatknotweedbesprayedpriortoenteringintodormancy,currentlyestimatedasnolaterthantheendofSeptember2015.Thecontractorwillrequire1to2daystoperformtheinitialspraying.ThesecondphasewillcomprisecleaningupthedownedKnotweed,aftertheabovegroundstalkshavefullydied,currentlyestimatedaslatewinterthroughearlyspringof2016.NoeffortwillbeexpendedonKnotweedbelowgroundlevel.Asathird,minorphase,itispossiblethatsomeeffortwillbeexpendedtrimmingblackberrytothegroundduringthenext12months.EstimatedTimeFrameforyear-to-yearMaintenanceStudiesbyorganizationssuchastheNatureConservancyhaveshownthatthreetosevenyearsarerequiredtoassuredestructionanddecayofestablishedknotweedstands.Inthesecondandperhapsthirdyear,knotweedwillbemitigatedbyasecondorthirdapplicationofImazapyr,ifnecessary.“Ifnecessary”appliestostandsgreaterthan50stems.Ifstandsof50orfewerstemsremain,andareaccessible,theywillbecontrolledthroughinjectionofa4-6%solutionofGlyphosate.ThepreparerofthisnarrativehasbeentrainedandcertifiedbyKingCountyinGlyphosateapplication. Removalofroots/rhizomesisbothverydifficultandunwise,astheyextendto7feetverticallyandupto23feethorizontallyfromthestem.OncesprayedandtheImazapyrmigratestotheroots/rhizomes,therebykillingtheentireplant,whatisbelowgroundisbestlefttodecayinsitu.AsIunderstandit,thatwouldbeatleasttwoyears,likelylonger.ItisbothimpracticalandinappropriatetoconsiderreplacementplantingsuntiltheKnotweedrhizomeshavedecayed.Followingthefirstand/orsecondyearofKnotweedcontrol,andasbudgetandmanpowerareavailable,Barbeewillbegintoaddresstheabovenotedsecondaryinvasives.ProposedMeasurestoPreventErosionOurplanspecificallyexcludesdiggingordisturbingtherootstructureofKnotweed.ItisalsoimportanttonotethatweplantoavoiddisturbinganysoilbelowtheordinaryhighwatermarkonMayCreek.Eventualimplementationoftheremovalofsecondaryinvasivesmayinvolveminorsoildisturbanceduetoshallowdiggingwithhandtoolstoremovetherootsofmorningglory,blackberry,buttercup,horsetailandothers.ThisportionoftheprojecthasnotyetbeenaddressedbytheBarbeeMillHOA;wearesimplyseekingpermissiontoaddsecondaryinvasivestotheprimaryproject:removingknotweed.Inthatcapacity,weagainwillavoiddisturbingbelowtheordinaryhighwatermark.NewPlantingsTheareabetweenourBarbeehomesandMayCreekhadbeenplantedbythebuilder,ConnorHomes,inaccordancewithplansestablishedatthetimeofconstruction.ThoseplantsincludednativesNootkarose,groundstrawberry,salal,andtreessuchasredandyellowtwigdogwoodandvinemaple.Itisourplan,followingdecompositionoftheKnotweed,toreplantprimarilywithstrawberry,salalandoccasionalNootkarose.PlentyofnativetreesaboundalongtheborderofMayCreek;inourestimation,nofurthertreesneedtobeadded. OtherMattersInordertoprotectourownexpendituresofeffortandfunding,theCityisrespectfullyrequestedtoassureBarbeethatnoCityobligationsofstewardshipofthelandsaddressedhereinarebeingabrogatedorotherwisereassignedtotheBarbeeMillHOA.Inasimilarvein,theCityisalsorespectfullyrequestedtoadviseofanyfundingfromlocal,stateorfederalprogramsthatmaybemadeavailabletoassistusinthisprogram.PreparedbyMichaelandRuthKidd1117North41StPlaceRenton98056Mikekiddl969@gmail.comRuthkidd4@gmail.com B4W29T24NR5EW1/2N91-bo--kiod/)lcpZONINGMAPBOOKPLANNING-TECHNICALSERVICESPRINTEDDATE:1010212013Thudocumentisagrephicrepresentation,notguanteedtosurveyaccrxacy,reidisbasedonthebestintonnationavailableasofthedateshown.ThismapaIntendedTmCitydisplaypurDosesunitCommunity&EconomicDevelopmentc£Th4fes,,,,eAAb,em,WthJ2itCORwUU)I—Ce)UCe)Ci,f/L\Ati.c1:,OJ--—CACAR-1OL_bCtb(’\/vu,,IIdidflTl4QT—.—_r—---——RB_]39;;I,,//7_RDNjI¶/1-zI-“))R1J-‘1’4LIiiA——,- ,——-—M9vrryTIj’LQR-8ICR-8--IR-1RC‘Iflft;,i:fl-‘“I,tH7-NtiSrCNZj//CN\\WR8LR\[YR8?lj_R-8D4VD5T23NR5EW1/20420840‘Feet1:9,490C4W32124NR5EW1/2Page5etenCttyLimits[iii(CV)Centershilagef]RENTON(TH)InI4”’ZoningDesignationIZI91)In(CA)CommercialArterialEZ]Qtt)(CD)CenterDowntownI)(R-l)(CN)CommercialNeighbathoodiz:i(R-l0IZI(CD)CommercialOttice3(R-14(COR)CommerdailQ6ce/Residenllal(R-4)CR-ti)Residential8du/ac11lOfliflee,ulineEXHIBIT2 GLJO2OHSL6c0—OL—CN1NO1N3JJOAUDdd—601—LO-‘fl1NQIN]dJOAIjO...--—III-/E44‘/rmJr-IIrlrvtfWqc5ISrutWdh.4/C—.1?t&IN/T:h//-C:///:;I•/$P/)ze’Q//u16—l‘/Ct/f7fN%/1•%t/1__/___/DY6II/0Uft__tZ//////t/1\t6/////—.:69/•/i.-.FI:.OU—.lUSD6/4r-,..-./C.S:.:us.0/I-,I:/II’NOION4.16VMM.N003ONbN0JNOHdOMiD.-IVIM“39HNtfltCNoao9s1101WACOdoNOW.HOd.//tcctJ/ihH-11IY’1396HV9\‘Yot.-a;.—I‘-S£IISIHX]‘tn3-°°t.g\noSsvRuj.1Ii(4J??-4V9 tb€€A1flIh\JccznKt?r7cickShoutan3xemjatC)cSkccjçj?asz.—J’W4chtrrjJ’L&i-_BARBEEMILLPORTIONOPGOVTLOT1,SEC11ON32,T.24NREEWM,cmopRENTON,KINGCOUNTY,WASHNGTON—____SCAA.F50’iNBEBITa1/z‘CPAprn,.’ .jwiAZ—.sr‘S.pnAS-‘15rAAA’L•W5,CFBAcEAAL,AAA.‘ABCA—A,A-CCA”NABC—P0’CCAiACn.AACPA’ClC,‘CA’B’’’AS’A’NflA.APA.AATB#AAfrA.C.?AA’StIIArAABAb’’’.PA.OA-PAIAAAAACAAUAAM’AAP,nBAAC,A:CITYOFRENTCNLUA—07-lCO—FPCIIYOFRENFCNLNC—lO-O397 EXHIBIT4Li—.a,.P•V‘S-.-tC—be$‘I-. .•:•tfp..•S-—-a—_,-I——S..rl,rA.—etK———--ISIC’—a_tI.I—