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($$%&A<< c<6X9`(Courier New\  `&Times New Roman%2A`Arial*|/'  UUDD D&&D3|x U/gifs/dot_clear.gif>WPC   !HH  XXXX  _  *XXCityofSantaMonica,California H MunicipalCodeofOrdinancesArticle7:PublicWorks #XX*# x0   Chapter7.10URBANRUNOFFPOLLUTION  8 7.10.010Findings. 7.10.020Purpose. 7.10.030Definitions. 7.10.040Goodhousekeepingrequirementsforreductionofurbanrunoffatexistingproperties. 7.10.050Penaltiesforfailuretocomplywithgoodhousekeepingrequirements. 7.10.060Urbanrunoffreductionrequirementsfornewdevelopment. 7.10.070Urbanrunoffrequirementsforprojectsunderconstruction. 7.10.080Citywideurbanrunoffpollutioneducationprogram. 7.10.090Annualevaluationandrevisionofgoodhousekeepingrequirements,bestmanagementpracticesandconstructionrequirements.  7.10.010Findings.  x   TheCityCouncilfindsanddeclares: (a)TheCityofSantaMonica'sstormandsurfacewaterdrainagesystemisplanned,designedandoperatedtohandlestormwaterrunoffflowsfrompublicandprivateproperties.Inordertofunctioneffectively,thissystemrequiresallprivateconnectionstoittobeproperlyconstructed,maintainedandoperated. (b)Stormwaterrunoffflowsfromindividualpropertiesontothestreets,thenthroughstormdrainstothebeaches.Itisthereforeinthepublicinteresttoensurethatbothpublicandprivatedrainagesystemsareproperlymaintained,inordertofacilitatetheproperfunctioningoftheCity'sstormandsurfacewaterdrainagesystem,andtopreventpollutantsfromenteringSantaMonicaBay. (c)TheCityofSantaMonicaisaco_permittee_ԀundertheLosAngelesCountyNationalPollutantDischargeEliminationSystem(NPDES)MunicipalPermitandassuchisobligatedtoimplementBestManagementPractice("BMP")procedurestopreventandcontroltheentryofpollutantsand_nonstorm_ԀwaterrunoffintotheCitystormdrainsystem. (d)Themostsignificantpollutantsinurbanrunoffcomefrom_particulates_Ԁandoilandgrease. (e)Inordertobettercontrolthequantityandqualityofurbanrunoffpollution,anactiveprogramrequiringexistingpropertiestoadopt"goodhousekeeping"practicesisessential. (f)Inordertoreducerunoffcontaminationandrunoffvolumefromprivateandpubliclyownedpropertieswhichwillbenewlydeveloped,substantiallyrehabilitatedorredevelopedinthefuture,aprogramensuringthatnewdevelopmentsincorporatedesignelementswhichfacilitatesuchcontrolisrequired. (g)ItisinthebestinterestoftheCitytoestablishguidelinesandproceduresforcontrolofthequalityofstormdrainagerunofffromconstructionsiteswithintheCity.(PriorcodeSec.7280;addedbyOrd.No.1642CCS,adopted9/8/92) 7.10.020Purpose.   +'* ThepurposeofthisChapteristopermanentlymodifythestructuralcausesofurbanrunoffpollution.TheobjectivesofthisChapterincludethereductionofbothrunoffvolumeandrunoffcontaminationfromexistingresidentialandnonresidentialpropertiesandfromfuturedevelopments.ThisChapter .+. hastwomaingoals.First,itaimstoensurethatprojectsitesmaximizeonsitepercolationofrunoffand/orhavethecapacitytoconveyorstorepeakrunofffromastormandreleaseitataslowratesoastominimizethepeakdischargeintostormdrains.Second,thisChapteraimstoensurethatrainwaterisdirectedorcontainedsoasnottobecomepollutedbypassagethroughcontaminatingmaterial.(PriorcodeSec.7281;addedbyOrd.No.1642CCS,adopted9/8/92))XXXX 7.10.030Definitions.    ThefollowingwordsandphrasesshallhavethefollowingmeaningswhenusedinthisChapter: (a)AreaSusceptibletoRunoff.Any_nonpermeable_Ԁsurfacedirectlyexposedtoprecipitationorinthepathofrunoffcausedbyprecipitationwhichleadsdirectlytoneighboringpropertiesortothestreet. (b)BestManagementPractices("BMP").Practicesprincipallyapplicabletoconstructionsites,parkinglotsandnewdevelopmentswhichreducethetoxicitycontainedin,andthevolumeof,waterwhichrunsintostormdrains,treatmentfacilitiesandtheSantaMonicaBay. (c)GoodHousekeepingRequirements("_GHR_").Stormwaterpollutioncontrolpracticesapplicabletoexistingpropertieswhichhavebeendemonstratedtosignificantlyreduceandcontrolstormwaterurbanrunoffpollutionwhichrunsintostormdrains,treatmentfacilitiesandtheSantaMonicaBay. (d)NewDevelopment.ForpurposesofthisChapter,newdevelopmentshallbedefinedasanincreaseoffiftypercentorgreaterinthesizeofasinglefamilyhome,additionofoneormoredwellingunitsinamultifamilystructure,orimprovementstoanonresidentialpropertywhicharevaluedatfiftypercentormoreofthevalueoftheexistingimprovementsonthesite. (e)ProjectedRunoff.Anumericalprojectionbasedonthefollowingformula:Precipitationmultipliedbyparcel sizemultipliedbyimperviousnessfactor  [  S p 1[SPrecipitationshallbepresumedinallcasestobeoneinchofrainfallfallingwithinatwentyfourhourperiod.Parcelsizeshallbethetotalsquarefootageofthelotbeingdeveloped.Animperviousnessfactorrepresentstheamountofaveragestormwaterdrainagefromtheaverageofallparcelszonedforaparticularlanduse. ThisnumericalprojectionshallbeusedasastartingpointinmeasuringcompliancewiththetwentypercenturbanrunoffreductionrequiredbythisChapter. Table7.10.030containsimperviousnessfactorsfordifferentlandusetypes.ThistableisderivedfromamoreextensivelistofimperviousnessfactorsutilizedbytheLosAngelesCountyDepartmentofPublicWorksStormwaterManagementDivision,forbenefitassessmentdistrictsforfloodcontrol.[v݌̌  1[S9%  ,Kk (#X9)X)X(Բ)  .  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E(  ,Kk (#k(#ECollegesand.Z/݌ x-0*6 Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)Xg.#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  0  E(  ,Kk (#k(#EuniversitiesAlllotareas0.473301݌ @.*7 Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X0#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  L3  E(  ,Kk (#k(#EL33݌ /+8 Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X2#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  g5  E(  ,Kk (#k(#EHospitalsAlllotareas0.7435g55݌ H Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X5#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  7  E(  ,Kk (#k(#E7V8݌̌(X[6X(Բ)XXX(X[6* Xk X*  #XXX)Xc7#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  9  E(  ,Kk (#k(#EHomesforaged9]:݌  Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)Xj9#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  ;  E(  ,Kk (#k(#EandothersAlllotareas0.6815;<݌ X Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X;#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  Q>  E(  ,Kk (#k(#EQ>>݌̌(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X=#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  X@  E(  ,Kk (#k(#ECemeteriesAlllotareas0.0000X@@݌ 0 Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X?#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  B  E(  ,Kk (#k(#EBGC݌̌(X[6X(Բ)XXX(X[6* Xk X*  #XXX)XTB#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  D  E(  ,Kk (#k(#EVacantAlllotareas0.0190DNE݌ x Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X[D#)XXXXB.` hp x (#XB  G  S  @ 1[S (f)ReducedRunoff.Anumericalprojectionbasedonthefollowingformula:G4G݌̌   Projectedrunoff multipliedby.80ThisprojectionrepresentsthemaximumamountofstormwaterdrainageexpectedtooccurataparticularsiteuponimplementationofanapprovedUrbanRunoffMitigationPlan. (g)UrbanRunofforUrbanRunoffPollution.Waterandsuspendedordissolvedmaterialsdepositedonsurfacesandwashedbystormsorothersourcesofflowingwater,throughthefloodcontrolsystemtotheocean.Researchstudieshaveshownthaturbanrunoffcontributesmanypollutantstoreceivingwaters.Contaminationincludesbacteriaandviruses,solidwaste,and_toxics_Ԁsuchasheavymetalsandpetroleumbasedcompounds. (h)UrbanRunoffMitigationPlan.Aplanwhichshallberequiredtobeapprovedinconnectionwithanynewdevelopment.Anysuchplanshallachievetwentypercentreductionoftheprojectedrunoffforthesite.(PriorcodeSec.7282;addedbyOrd.No.1642CCS,adopted9/8/92) 1[S#XXX)XF#)XXXX 7.10.040Goodhousekeepingrequirementsforreductionofurbanrunoffatexistingproperties.    ThefollowinggoodhousekeepingrequirementsshallbeadheredtobyallpersonswithintheCityofSantaMonica. (a)Collection,StorageandMinimizationofRunoff. (1)Waterusedforirrigationpurposesshallnotbeallowedtorunoffofasite.Inaddition,washingdownofpavedareasshallbeprohibitedunlessnecessaryforhealthorsafetypurposesandnotinviolationofanyotherprovisionofthisCode. (2)Theuncoveredoutdoorstorageofunsealedcontainersofbuildingmaterialscontaininghazardoussubstancesisprohibitedinareassusceptibletorunoff. (b)MaintenanceofEquipment. (1)Objectssuchasvehiclemotorpartscontaininggrease,oilorotherhazardoussubstances,andunsealedreceptaclescontaininghazardousmaterials,shallnotbestoredinareassusceptibletorunoff. (2)Anymachinewhichistoberepairedormaintainedinanuncoveredoutdoorareashallbeplacedonapadofabsorbentmaterialtocontainleaks,spillsorsmalldischarges. (3)Machineryandequipment,includingmotorvehicles,whichareleakingsignificantamountsofoilorfluidmustberepaired. (c)RemovalofDebrisandResidue. _(1)_ԀAllparkinglotssusceptibletorunoffusedformotorvehicleparkingshallbeswept,atminimum,onamonthlybasistoremovedebris.Lotswithmorethantenparkingspacesandallpublicparkingfacilitiesshallbevacuumswept,atminimum,onaquarterlybasis,toremovechemicalresidue.However,lotsarenotrequiredtobevacuumsweptforonemonthfollowingadaywhenprecipitation t.,+. ofonehalfinchormoreoccurs. (2)Fuelandchemicalresidueorothertypesofpotentiallyharmfulmaterial,suchasanimalwaste,garbageorbatteries,whichislocatedinanareasusceptibletorunoff,shallberemovedimmediatelyanddisposedofproperly.HouseholdhazardouswastemaybedisposedofattheCity'shouseholdhazardouswastecollectionfacilityoratanyotherappropriatedisposalsiteandshallnotbeplacedinatrashcontainer. (3)Intentionaldisposaloflandscapedebrisintoastormdrainisprohibited.Section5.20.040oftheSantaMonicaMunicipalCodeprohibitsdischargeofothertypesofpollutantsintothestormdrain. (d)ProhibitiononUseofPesticidesandFungicidesBannedfromManufacture.Useofanypesticide,herbicideorfungicide,themanufactureofwhichhasbeeneithervoluntarilydiscontinuedorprohibitedbytheEnvironmentalProtectionAgency,isprohibited.Thosesubstancesincludeanycontainedonthelistbelow:9%  ,Kk (#X9)X)X(Բ)  qW  E(  ,Kk (#k(#EqWX݌̌(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X"L#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  xY  E(  ,Kk (#k(#EBannedSubstancesxY Z݌ P  Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)XY#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  [  E(  ,Kk (#k(#EӀ_Aldrin_[6\݌   Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)XC[#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  ]  E(  ,Kk (#k(#EӀ_BHC_]|^݌   Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X]#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  -`  E(  ,Kk (#k(#EӀ_Biothional_-``݌ ` Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X_#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  wb  E(  ,Kk (#k(#EӀ_Captafol_wb c݌ p( Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)Xb#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  d  E(  ,Kk (#k(#EӀCarbonTetrachloridedQe݌ 8 Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)X^d#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  f  E(  ,Kk (#k(#EӀ_Chloranil_fg݌  Ќ(X[6X(Բ)XXX(X[6* Xk X*  #XXX)Xf#)XXXXB.` hp x (#XB9%  ,Kk (#X9)X)X(Բ)  :x \p.@ H****E,d'=N>:x \p.@ H****EHdWInrecognitionofthenewnessofregulationintheareaofurbanrunoffpollution,theeffectivenessofthisChaptershallbeevaluatedinwritingbytheGeneralServicesDepartmentnotlaterthanoneyearfromtheeffectivedate,andnolessfrequentlythanonceeverytwoyearsthereafter.ThewrittenevaluationshouldaddressthenecessityforrevisionsoftheprocessestablishedbythisChapterfor X/,/ achievingurbanrunoffreductionandthenecessityforrevisionstogoodhousekeepingrequirements,bestmanagementpracticesandconstructionrequirements,ifany.(PriorcodeSec.7288;addedbyOrd.No.1642CCS,adopted9/8/92) 1[S#XXX)X+#