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C_WM_Collins_&_Family_Comments_180725_v2.pdf
July25,2018Re:S.SinghShortPlatLUA17-000803,ECF,SHPL-A-CITYOFRNT(completeapplicationdate:DatedDec6,2017)JUL252018from:WmCollins&family420CedarAveSoD5VELOFRenton,WA98057SERVICESTo:CityofRentonCED-PlanningDivisionAndClarkH.CloseSeniorPlanner1055GradyWaySoCityofRenton,98057Subject:StatementinregardstoProposedHomestobelocatedbetweenthe900blockofRentonAvenueSo,andtheStateofWashingtonproperty(HenryHTobinLandClaim:KingCo#202305-9163)(ThisisanAddendumtoCollinsFamilyLetter12/14/2017)(CommentsinresponsetotheJune18,2018“ResponseToHoldLetter”fromPKEnterprises)WewouldliketotakethisopportunitytorespondtoafewofthemostrecentcommentsmadebyPhillipKitzes(PKEnterprises).Pleaseforwardthesecommentstootherpersonsofrecord.Thesecommentsmaybethesameasorinadditiontoanycomments/fmdingsbroughtupbyTheCityofRentonoranythird-partyinvolvedwiththisresponse.1.The“onsiteinvestigations”mentionedintheletterseemtomissthefactthatthereisanaturalgroundwaterstreamoutfallonthewestsideoftheintersectionofRentonAveSoandSo.9thThisoutfalldischargeswaterwithin25feetofthenorthpropertylineoftheproposeddevelopmentandissouthofthe10footwideutilityeasementthatrunsbetweenRentonAveSoandCedarAveSo.AllofthisnaturalwateroutfallhasitssourcefromnaturalartesianstreamflowsfromthePhilipArnoldParkareaandeastward.Thisdischargerunscontinuously24hoursaday,365daysayearregardlessofweatherconditions.Insteadofflowingonthesurface,itwasredirectedtoapiperunningunderthesouthsideofSouth9thbeginningeastofJonesAveSouthmanydecadesagotoapointonthewestsideofRentonAveSo.TheoutflowdischargepreviouslyatRentonAveSoandSo101hhasbeenredirectedintotheSouth9th1dischargepoint.Therearedefiniteon-site“seeps”acrossthepropertyascanbeseenonprevioussitesurveys.Therearenopointsofintentionalstreetrunoffdischargingintothisstream.ItshouldbenotedthattherecentCityofRentondrainageredesignnowdirectsstreetrunoffintoaseparatestormwatersystem.Thus,thenaturalgroundwatercontinuestoflowtothenaturalcollectionpointsonthesubjectsite.Thereareno“intentionallycreated”waterflowsontothesite.2.The“DownstreamAnalysis”mustincludethefactthattheStateofWashington.DepartmentofNaturalResources,ownsandmaintainsallofthepropertyabuttingthewestpropertylineoftheproposeddevelopment.(Betweenthesubjectpropertyandthe1-405rightofway).Anydevelopmentorredirectionofwateroutflowsmusttakethisintoconsideration.TheStateofWashingtonshouldbecontactedtoprovidetheirinputonthisproposalaswellandshouldbeapartyofrecord. 3.TheGeotechnicalReportfailstorecognizethattheRentonCoalMinehadtwoentrances.Themostrecententrancewasunder1-405/BensonRoad,butanearlierentranceforminers,mules,andventilationislocatedwithin50horizontalfeetofthewestboundaryofthepropertyunderconsideration.The1913GeologicStructureMapoftheRentonCoalMine,whichaccompaniesthereportofGeorgeWatkinEvans,ConsultingMiningEngineer,showstheI$74Denny-RentonEntrancetoVein#1.Theoriginal1874entrancetothecoalminewasonthenorthsideofRentonHillabovewhatisnowtheDogPark..Ithasanentranceelevationof258.7feet.However,thismapclearlyshowsthatthishigherentryextendedsouthwardtojustsouthofRentonAveSoandSo9thIn1896thisupperveinwasgivenupforcoalremovalinfavorofthelowerworkings,buttheventsandexitswerenotclosedandarerelativelyclosetothesurface.Thereisawell-knowentrance/exittothecoalmineatthewesternboundaryofthesubjectproperty,whichwasusedasasourceofventilationandemergencyexiting.(Locatedjustsouthof81$CedarAveSo.)Inaddition,thehomeat910RentonAveSouthexperiencedalackofgroundsupportandresultingvoidsduringtheconstructionofitsfoundation.TheentireareasouthofSouth9thandwestofRentonAveSoisinadepressedareawhichmakesitclosertothecoalmineworkings/vents/exitsoftheearlyVein#1.ItistruethatthemajorityoftheRentonCoalMine,gangways,slopes,andventsoccurquitedeep,asdeepas632feetbelowsealevel,butagreatdealoftheworkinghadtheirbeginningsnearthesubjectproperty.Theoriginalmineworkings/vents/andescaperoutesfrom1874to1901cannotbeignoredbecauseoftheirproximitytothesurfaceAlso.inclosing,theexistingnaturalgroundwater/artesianstreamflowswesterlyfromJonesAveSouthcannotbewritten-offorignoredaswellastheyfindtheirnaturalpointsofrunoffSincerely,mCollins