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Home My WebLink AboutF_Weston Heights Lot 6 Storm Covenant_171229MAINTENANCEINSTRUCTIONSFORAPERFORATEDPIPECONNECTIONYourpropertycontainsanon-siteBMP(bestmanagementpractice)calleda“perforatedpipeconnection,”whichwasinstalledtoreducethestormwaterrunoffimpactsofsomeoralloftheimpervioussurfaceonyourproperty.Aperforatedpipeconnectionisalengthofdrainageconveyancepipewithholesinthebottom,designedto“leak”runoff,conveyedbythepipe,intoagravelfilledtrenchwhereitcanbesoakedintothesurroundingsoil.Theconnectionisintendedtoprovideopportunityforinfiltrationofanyrunoffthatisbeingconveyedfromanimpervioussurface(usuallyaroof)toalocaldrainagesystemsuchasaditchorroadwaypipesystem.Thison-siteBMPshallbemaintainedperAppendixAoftheCityofRenton’SSurfaceWaterDesignManual.MAINTENANCERESTRICTIONS.ThesizeandcompositionoftheperforatedpipeconnectionasdepictedbythesiteplananddesigndetailsmustbemaintainedandmaynotbechangedwithoutwrittenapprovalfromtheCityofRentonorthroughafuturedevelopmentpermitfromtheCityofRenton..Thesoilovertopoftheperforatedportionofthesystemmustnotbecompactedorcoveredwithimperviousmaterials.RECORDINGREQUIREMENTTheseperforatedpipeconnectionon-siteBMPmaintenanceandoperationinstructionsmustberecordedasanattachmenttotherequireddeclarationofcovenantandgrantofeasementperRequirement3ofSectionC.l.3.4oftheCityofRentonSurfaceWaterDesignManual.Theintentoftheseinstructionsistoexplaintofuturepropertyowners,thepurposeoftheBMPandhowitmustbemaintainedandoperated.Theseinstructionsareintendedtobeaminimum;theCityofRentonmayrequireadditionalinstructionsbasedonsite-specificconditions.SeetheCityofRenton’sSurfaceWaterDesignManualwebsiteforadditionalinformationandupdates.TYPICALPERFORATEDPIPECONNECTIONFORASINGLEFAMWYRESIDENCEIF—“I—‘ELANVIEWOFROOFNT$TRENCHX4ECTIONNTSslopeto road drainage system2' x 10level trenchw/perf pipe18" min6"random fillfilter fabric4" perf pipe 1 1/2" - 3/4" washed rock24" min