071608.Comment Ltr for LGOP - WW Chapter 10

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CALIFORNIA WASTEWATER CLIMATE CHANGE GROUP 1737 North First Street, Suite 300, San Jose, California 95112 Core Steering Committee July 18, 2008 Randy Schmidt, P.E. Submitted via electronic mail to: policy@climateregistry.org Central Contra Costa Sanitary District From: The California Wastewater Climate Change Group Daniel McGivney Eastern Municipal Water Subject: Local Government Operations Protocol District Helen Hu, P.E. As requested, the California Wastewater Climate Change Group (CWCCG) has Sacramento Regional County completed the review of the Draft Local Government Operations (LGO) Sanitation District Protocol, Chapter 10 Centralized Wastewater Treatment Facilities. Steering Committee The CWCCG is composed of wastewater agencies throughout California and member agencies of the CWCCG treat approximately 90% of municipal Central Contra Costa wastewater in the state of California. The primary purpose of the CWCCG is to Sanitation District respond to climate change and forthcoming regulations and to provide a unified City of Fresno voice for the California wastewater industry. City of Los Angeles Bureau of CWCCG first began looking at the development of a bottom‐up wastewater industry Sanitation specific GHG reporting protocol in May of 2007. In January 2008 ...

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CALIFORNIAWASTEWATERCLIMATECHANGEGROUP1737NorthFirstStreet,Suite300,SanJose,California95112 CoreSteeringCommitteeJuly18,2008RandySchmidt,P.E.CentralContraCostaSanitarySubmittedviaelectronicmailto:policy@climateregistry.orgDistrictFrom:TheCaliforniaWastewaterClimateChangeGroupDanielMcGivneyEasternMunicipalWaterSubject:LocalGovernmentOperationsProtocolDistrictHelenHu,P.E.Asrequested,theCaliforniaWastewaterClimateChangeGroup(CWCCG)hasSacramentoRegionalCountycompletedthereviewoftheDraftLocalGovernmentOperations(LGO)SanitationDistrictProtocol,Chapter10CentralizedWastewaterTreatmentFacilities.SteeringCommitteeTheCWCCGiscomposedofwastewateragenciesthroughoutCaliforniaandmemberagenciesoftheCWCCGtreatapproximately90%ofmunicipalCentralContraCostawastewaterinthestateofCalifornia.TheprimarypurposeoftheCWCCGistoSanitationDistrictrespondtoclimatechangeandforthcomingregulationsandtoprovideaunifiedCityofFresnovoicefortheCaliforniawastewaterindustry.CityofLosAngelesBureauofCWCCGfirstbeganlookingatthedevelopmentofabottom‐upwastewaterindustrySanitationspecificGHGreportingprotocolinMayof2007.InJanuary2008,CWCCGmembersmetCityofSanDiego–withCCARtodiscusshowbesttoworktogethertodevelopawastewaterprotocolthatMetropolitanWastewaterwasabottomupestimate,scientificallysound,andrigorouslyreviewedandacceptableDepartmentnotonlytoCCAR,buttoARBandEPAaswell.Sincethattime,CCARattherequestofARBhasundertakenanefforttodevelopaLGOProtocol,whichwouldincludecityEastBayMunicipalUtilitiesoperatedwastewaterfacilities.RecognizingthatCWCCG’splannedeffortstodevelopaDistrictrobustprotocolwouldnotbecompleteintimeforARB’sLGOProtocoldeadlineinEasternMunicipalWatersummer2008,CWCCGagreedtohelpCCARmeettherequirementoftheLGOprotocolDistrictbyprovidinga“PhaseI”protocol.The“PhaseI”protocolwastobebasedonatop‐downapproachandexistingmethodologies.SinceJanuary2008,CWCCGhasspentsignificantInlandEmpireUtilitiesAgencytimeandeffortworkingwithCCARonthePhaseIprotocoltomeetARB’sdeadline.Atthesametime,CWCCG’soriginalfocusonamorerefinedandrobustbottom‐upLosAngelesCountyprotocolhasbeenputonhold.Atthistime,CWCCGfeelsthattheirefforts,expertise,SanitationDistrictsandassociatedcosthasresultedinlittletonoprogresstowardsamorerefinedwastewaterindustryGHGreportingprotocol.Therefore,CWCCGwouldliketofocusitsOrangeCountySanitationDistrictremainingfundsandanyfuturefundssolelyonthePhaseIIprotocoldevelopment.WearehopefulthatfutureeffortsandcoordinationwithCCARwillhelpCWCCGfocusonSacramentoRegionalCountyourendgoal–anaccurateemissionsaccountingmethodforthewastewaterindustry.SanitationDistrictSanFranciscoPublicUtilitiesOurspecificcommentsrelatedtoChapter10oftheLGOProtocolareattached.CommissionTheCWCCGappreciatetheopportunitytoreviewandcommentontheDraftLocalGovernmentOperationsProtocol.SanJose/SantaClaraWaterPollutionControlPlant PleasecontactHelenHuat916‐876‐6098orHuH@SacSewer.comifyouhaveanyquestionsconcerningourcomments.

Section#Ch.10,pg95

Ch.10,pg95Sec.10.1Pg95Sec.10.2Pg95Sec.10.2Pg96

Sec.10.2,pg96

Sec.10.3Pg97Box10.1

Comments General–Theintroductoryparagraphacknowledgestheexistenceofprimarytreatment(plants)butthesubsequentdiscussionsmakeanassumptionthatallwastewatertreatmentplantsaresecondaryplantsandthatallsecondaryplantsgenerateN2Oatthelevelsindicated.SomeWWTPsareuniqueandhavedeminimisprocessN2OemissionsandCO2emissionsanorderofmagnitudelessthanstandardwastewatertreatmentprocesses.Theseprocessesshouldbeencouragedbyatacknowledgingthatalternativeprocessesexist.nd Lastsentence,2paragraph:“Table10.1provides...forcommonGHGsourcesrelatedtosolidwaste.”Doyoumeanwastewaterandnotsolidwaste? Needtoclarifysentence:examineyourwastewatertreatmentactivitiesaccordingtotheorganizationalboundaryguidanceinChapter3. st Lastsentence,1paragraph,revisetoread“Centralizedwastewatertreatmentsystems...forremovingnutrientsandprovidingdisinfection.” nd Lastsentence,2paragraph:Thissentenceisnotaccurate.Also,theproperwordfor“sludge”is“biosolids”.First3paragraphsonpage96:Theseparagraphsdonotmakemuchsense,confusing,anddoesnotsupporttheinfoprovidedinTable10.2.IftheintentoftheseparagraphsaretoexplainthesourceofCH4andN2O,theseparagraphneedtobeexpandtobetterexplaintheintent.Clarifyapplicabilityofstatementsandtables:rd 1. Firstsentence,3paragraph:aftertheword“wastewater”insertthewords“inmostsecondarytreatmentprocesses”2. Table10.2:th th a. GHGSourceColumn,4and5rowsdownfromtitleblock,replacethewords“CentralizedWWTP”with“StandardCentralizedSecondaryWWTP”b. The“F”inthistableneedstobedefinedsincetheydonotmeanthesamething.TheCaliforniaWastewaterClimateChangeGroup.Re‐writeasfollows:“InaproactiveapproachtomeetpotentialfutureGHGregulatoryrequirements,overfortyCaliforniawastewateragencieshaveformedtheCWCCG.Tothatend,theCWCCGisworkingtodevelopanemissionsquantificationprotocolforwastewatertreatmentplantsinCaliforniathatwillallowanoperatortoestimateitsGHGprofileofallsixmajorGHGs.ForthemoreconventionalGHGpollutantslikeCO2fromcombustionandpowerimportation,thedocumentwillreferenceandsteertheoperatortowardavarietyofexistinggeneralreportingprotocolsformostoftheGHGpollutants.Forotherpollutants,likeN2O,theCWCCGintendstouseWaterEnvironmentResearchFoundation(WERF)researchonN2Ofromactivatedsludgeplants,currentlyunderway.TheWERFresearch,whichisfocusingonacombinationofdirectmeasurementsandrefinementofmathematicalmodeling,shouldprovidequantificationtoolsfortheindustry.OtherpollutantssuchasCH4andotherpotentialfugitiveemissionsreleasepointswillalsobeincorporatedaspartoflaterWERFstudyprogramsorotherstudyprograms,sothatacompletewastewaterindustryemissionprofilecanbeobtained.”

CWCCGCommentLetteronDraftLGOP–Chapter10

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Section#Comments rd 3paragraph,revisetoread:“Formoreinformation,refertoCWCCG’sDiscussionPaperforaWastewaterTreatmentPlantSectorGreenhouseGasEmissionsReportingProtocol(April2008).”Also,isthediscussionpaperincludedintheAppendixorsomewhereintheLGOProtocolsincethisisreferenced?Sec.Biogasisnotnecessarilyproduceduringwastewatertreatment.Biogasistypicallyaby‐ 10.3.1.1productofthebiosolidstreatmentprocess.Pg97st Revise1paragraphtoread:“Manylocalgovernments...digesterforbiosolidsstabilization.Biogasisaby‐productofthedigestionprocesswhichofteniscapturedandusedinenergyproductionoriscombusted.Astheremaybesomeinefficiencyin...CH4emissions.”Sec.“Fremoved”needstobedefineas“fractionofoverallBOD5removalperformance.” 10.3.1.2Pg99EquationIsequation10.6forpubliclyowned/operatedsepticsystems…orsumofalltheestimated10.6septicsystemsw/inajurisdiction?Ifit’sthelatter,thensepticsystemsshouldbeincludePg101inthecommunitylevelprotocolandnottheLGOProtocol. st Sec.10.3.21paragraph,replacethewords“CentralizedWWTP”with“StandardCentralizedPg.101SecondaryWWTP”inline1andline12 Sec.10.3.2Changetitletoread:Processemissionsfrom“StandardCentralizedSecondary”WWTPPg.102withoutNitrification/Denitrification.

CWCCGCommentLetteronDraftLGOP–Chapter10

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