Final StanislausGHG short clean · Refrigerants/High GWP Gases.....2‐16 Chapter 3 Methods ... (MT...

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STANISLAUS COUNTYWIDE REGIONAL COMMUNITY GREENHOUSE GAS INVENTORY P REPARED FOR : Stanislaus County 1010 10th Street, Suite 3400 Modesto, CA 95354 Contact: Kristin C. Doud 209.525.6330 P REPARED BY : ICF International 620 Folsom Street, Suite 200 San Francisco, CA 94105 Contact: Rich Walter 415.677.7100 July 2013 This project was funded with a grant from the California Strategic Growth Council

Transcript of Final StanislausGHG short clean · Refrigerants/High GWP Gases.....2‐16 Chapter 3 Methods ... (MT...

STANISLAUS COUNTYWIDE REGIONAL COMMUNITY GREENHOUSE GAS INVENTORY 

P R E P A R E D   F O R :  

StanislausCounty

101010thStreet,Suite3400

Modesto,CA95354

Contact:KristinC.Doud

209.525.6330

P R E P A R E D   B Y :  

ICFInternational

620FolsomStreet,Suite200

SanFrancisco,CA94105

Contact:RichWalter

415.677.7100

July2013

ThisprojectwasfundedwithagrantfromtheCaliforniaStrategicGrowthCouncil

ICFInternational.2013.StanislausCountyRegionalCommunityGreenhouseGasInventory.July(ICF00203.10)SanFrancisco,CA.PreparedforStanislausCounty,Modesto,CA.

StanislausCounty CityofModesto

CityofHughson CityofCeres

CityofNewman CityofOakdale

CityofPatterson CityofRiverbank

CityofTurlock CityofWaterford

 

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Contents 

List of Tables  ......................................................................................................................................... iii 

List of Figures ......................................................................................................................................... iv 

List of Acronyms and Abbreviations ....................................................................................................... v 

 

Page 

Executive Summary ............................................................................................................................ vii 

Study Purpose ....................................................................................................................................... vii 

Regional Emissions by Sector ............................................................................................................... vii 

Chapter 1   Background .............................................................................................................. 1‐1 

Greenhouse Gas Definitions ................................................................................................................ 1‐1 

Greenhouse Gas Emissions and Planning in the United States and California ................................... 1‐3 

National and State Level Inventories ............................................................................................ 1‐3 

National and State Legislation ...................................................................................................... 1‐5 

Local Level Planning .................................................................................................................... 1‐10 

Overview of Stanislaus County ................................................................................................... 1‐12 

Chapter 2   Sector Summaries .................................................................................................... 2‐1 

Agriculture ........................................................................................................................................... 2‐2 

Building Energy .................................................................................................................................... 2‐6 

On‐Road Transportation ...................................................................................................................... 2‐7 

Off‐Road Transportation ..................................................................................................................... 2‐9 

Stationary Sources ............................................................................................................................. 2‐11 

Waste ................................................................................................................................................. 2‐11 

Water ................................................................................................................................................. 2‐13 

Wastewater ....................................................................................................................................... 2‐15 

Refrigerants/High GWP Gases ........................................................................................................... 2‐16 

Chapter 3   Methods ................................................................................................................... 3‐1 

Agriculture ........................................................................................................................................... 3‐1 

What the Sector Includes .............................................................................................................. 3‐1 

Methodology ................................................................................................................................. 3‐1 

Data Sources ................................................................................................................................. 3‐2 

Building Energy .................................................................................................................................... 3‐2 

What the Sector Includes .............................................................................................................. 3‐2 

Methodology ................................................................................................................................. 3‐2 

Data Sources ................................................................................................................................. 3‐3 

 

 

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Landfill Sites ......................................................................................................................................... 3‐3 

What the Sector Includes .............................................................................................................. 3‐3 

Methodology ................................................................................................................................. 3‐3 

Data Sources ................................................................................................................................. 3‐4 

Off‐Road Transportation ..................................................................................................................... 3‐4 

What the Sector Includes .............................................................................................................. 3‐4 

Methodology ................................................................................................................................. 3‐4 

Data Sources ................................................................................................................................. 3‐4 

On‐Road Transportation ...................................................................................................................... 3‐4 

What the Sector Includes .............................................................................................................. 3‐4 

Methodology ................................................................................................................................. 3‐5 

Data Sources ................................................................................................................................. 3‐5 

Refrigerants/ High GWP gases ............................................................................................................ 3‐5 

What the Sector Includes .............................................................................................................. 3‐5 

Methodology ................................................................................................................................. 3‐6 

Data Sources ................................................................................................................................. 3‐6 

Stationary Sources ............................................................................................................................... 3‐6 

What the Sector Includes .............................................................................................................. 3‐6 

Methodology ................................................................................................................................. 3‐6 

Data Sources ................................................................................................................................. 3‐6 

Waste Generation ............................................................................................................................... 3‐7 

What the Sector Includes .............................................................................................................. 3‐7 

Methodology ................................................................................................................................. 3‐7 

Data Sources ................................................................................................................................. 3‐7 

Wastewater Treatment ....................................................................................................................... 3‐7 

What the sector includes .............................................................................................................. 3‐7 

Methodology ................................................................................................................................. 3‐7 

Data Sources ................................................................................................................................. 3‐8 

Water ................................................................................................................................................... 3‐8 

What the sector includes .............................................................................................................. 3‐8 

Methodology ................................................................................................................................. 3‐8 

Data Sources ................................................................................................................................. 3‐9 

Chapter 4   References ............................................................................................................... 4‐1 

Printed References .............................................................................................................................. 4‐1 

Personal Communications ................................................................................................................... 4‐4 

 

 

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Tables 

  Page 

ES‐1  2005 GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) .................. viii 

ES‐2  Socioeconomic Data For All Participating Jurisdictions in 2005 ......................................... x 

1‐1a  United States GHG Inventory in 2005 .............................................................................. 1‐5 

1‐1b  California GHG Inventory in 2005 .................................................................................... 1‐5 

1‐2  Summary of Key Federal and State Legislation and Regulations ..................................... 1‐6 

1‐3  Socioeconomic Data for All Participating Jurisdictions in 2005 ..................................... 1‐12 

2‐1  2005 GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) ................. 2‐1 

2‐2  GHG Emissions from Agriculture Sources in 2005 (MT CO2e) ......................................... 2‐3 

2‐3  Stanislaus Agriculture Emissions Compared to Other California Agriculture 

Producing Counties .......................................................................................................... 2‐5 

2‐4  Building Energy Consumption—Residential and Commercial/Industrial 

Electricity and Natural Gas in 2005 .................................................................................. 2‐6 

2‐5  Regional VMT and GHG Emissions by Speed Bin ............................................................. 2‐8 

2‐6  Regional GHG Emissions Due to Off‐Road Equipment in 2005 by Equipment 

Type................................................................................................................................ 2‐10 

2‐7  Waste Generation by Waste Type (Tons) ...................................................................... 2‐12 

2‐8  Water Consumption by End User Sector in 2005 (Agriculture, 

Commercial/Industrial, Residential) .............................................................................. 2‐14 

2‐9  Water Sources for the Region and Associated Energy Intensity (kwh/MG) .................. 2‐14 

 

 

 

 

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Figures 

  Page 

ES‐1  2005 GHG Emissions Inventory for the Stanislaus County Region  

(MT CO2e)—Sector View ..................................................................................................... ix 

ES‐2  Per Capita Emissions (Excluding Agriculture) Compared to Other 

Jurisdictions ........................................................................................................................ xi 

1‐1  United States and California GHG Inventories in 2005 .................................................... 1‐4 

1‐2  GHG Related Legislation, Regulation, and Executive Orders ........................................... 1‐9 

2‐1  GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) .......................... 2‐2 

2‐2  GHG Emissions from Agriculture Sources in 2005 (MT CO2e) ......................................... 2‐4 

2‐3  Comparison of Stanislaus GHG Emissions from Agriculture to National and 

State Level  Agriculture Emissions ................................................................................... 2‐5 

2‐4  Proportion of Regional GHG Emissions in the Building Energy Sector Due to 

Electricity and Natural Gas Use by Various End Users (MT CO2e) ................................... 2‐7 

2‐5  Regional GHG Emissions by Speed Bin in 2005 (MT CO2) ................................................ 2‐9 

2‐6  GHG Emissions Due to Off‐Road Equipment in 2005 from Various Off‐Road 

Equipment Types ........................................................................................................... 2‐10 

2‐7  Regional GHG Emissions by Waste Type (MT CO2e) ...................................................... 2‐13 

2‐8  Water Consumption by End User Sector in 2005 (Agriculture, 

Commercial/Industrial, Residential) .............................................................................. 2‐14 

 

 

 

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Acronyms and Abbreviations 

AB  AssemblyBillAR4 IPCCFourthAssessmentReport CAA  CleanAirActCAFE  CorporateAverageFuelEconomyCal/EPA  CaliforniaEnvironmentalProtectionAgencyCAP  ClimateActionPlanCARB  CaliforniaAirResourcesBoardCCA  CommunityChoiceAggregationCEC  CaliforniaEnergyCommissionCEQA  CaliforniaEnvironmentalQualityActCFCs  chlorofluorocarbonsCH4  methaneCO2  carbondioxideCPUC  CaliforniaPublicUtilitiesCommission EO  ExecutiveOrderEPA  U.S.EnvironmentalProtectionAgencyESPs  energyserviceproviders FED  FunctionalEquivalentDocument GHG greenhousegasGWP  globalwarmingpotential HCFCs  hydrochlorofluorocarbonsHFCs  hydrofluorocarbons IOUs  investor‐ownedutilitiesIPCC  IntergovernmentalPanelonClimateChange LAFCO  LocalAgencyFormationCommissionLCFS  LowCarbonFuelStandardLGOP  LocalGovernmentOperationsProtocol MCAP  municipalclimateactionplanMID  ModestoIrrigationDistrictmph  milesperhourMPOs  metropolitanplanningorganizations

 

 

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MSR  MunicipalServiceReviewMTCO2e  metrictoncarbondioxideequivalentMW  megawatt N2O  nitrousoxideNGOs  non‐governmentalorganizationsNSPS  NewSourcePerformanceStandards O3  ozone PFCs  perfluorocarbonsPG&E  PacificGasandElectricPUR PesticideUseReport RPS  RenewablePortfolioStandardRST  RegionalSustainabilityToolboxRTAC RegionalTargetsAdvisoryCommitteeRTPs  RegionalTransportationPlans SAR SecondAssessmentReportSB  SenateBillSCAG  SouthernCaliforniaAssociationofGovernmentsSCRSWPA  StanislausCountyRegionalSolidWastePlanningAgencySF6  sulfurhexafluorideSGC  StateofCaliforniaStrategicGrowthCouncilSJVAPCD  SanJoaquinValleyAirPollutionControlDistrictSP servicepopulation TDM TravelDemandModelTID  TurlockIrrigationDistrict UNFCCC UnitedNationsFrameworkConventiononClimateChangeUSGS  UnitedStatesGeologicalSurveyUWMP  UrbanWaterManagementPlan VMT  vehiclemilestraveled WARM  WasteReductionModelWMO  WorldMeteorologicalOrganizationWWTPs  wastewatertreatmentplants

 

 

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Executive Summary 

Study Purpose TheStanislausRegionalGHGInventoryProjectwascompletedaspartoftheStanislausCountyRegionalSustainabilityToolbox(RST),agroupofinitiativesfundedthroughtheStateofCaliforniaStrategicGrowthCouncil(SGC).TheproposalwassubmittedcollaborativelybyStanislausCounty(leadjurisdiction),andtheCitiesofCeres,Hughson,Modesto,Newman,Oakdale,Patterson,Riverbank,TurlockandWaterford.TheSGCgrantcontainsthefollowingrequirements:

ConsistencywithStatePlanningPriorities—thegoaloftheStanislausCountyRSTistoprovidealocallydrivensetoftoolsthatareconsistentwithregional,state,andfederalgoalsandstandards.TheStanislausCountyRSTisintendedtofitstate,regionalandfederalsustainabilitygoals,blueprintplansandGHGreductionthresholdsintoalocallyrelevantsetting.

ReductionofGreenhouseGases—theintentionoftheRSTistoidentifylocallyspecific,measurableactionsthatallowseachjurisdictiontomeetorpreferablyexceedStatewidegreenhousegas(GHG)reductiongoals.Assuch,acentralcomponentoftheRSTistoestablishabaselineGHGinventoryfortheentirecounty.

Collaboration—thetoolkitapproachallowsplanningeffortstobebothlocallyappropriatewhilealsobeingregionallyconsistent.TheRSTisintendedtobetheimplementationtoolforseveralregionalplanningeffortsincluding:StanCOG’sRegionalTransportationPlan,theValleyBlueprint,theSustainableCommunitiesStrategy,andtheCaliforniaPartnershipfortheSanJoaquinValley.TheproposalincludescollaborationwiththeGreatValleyCenter,CaliforniaStateUniversityStanislaus,LocalAgencyFormationCommission(LAFCO),ICLEI–LocalGovernmentsforSustainability,StanislausCountyHealthServicesAgencyandStanislausCountyAsthmaCoalition.

Thisreportprovidesthequantification(intermsofcarbondioxideequivalent[CO2e])ofGHGcommunityemissionsforthecountyasawholefortheyear2005.Usingthemethodologyfortheregionalinventory,separateGHGcommunityinventorieswerepreparedforeachjurisdictioninthecountyandprovidedtotheindividualcitiesandtheunincorporatedcountyfortheiruse.

ThisstudyisnotaGHGreductionplandoesitquantifyGHGreductions.ThisstudyisabaselineGHGinventoryonly.

Regional Emissions by Sector TotalGHGemissionsin2005fromtheStanislausCountyRegion(combinedemissionsfromthenineincorporatedcitiesandtheCounty),referredtointhisreportas“theregion”were6,042,232metrictonsofcarbondioxideequivalent(MTCO2e).Additionalemissionsarisefromstationarysourcesandlandfillsites(658,692MTCO2e).Stationarysourceemissions,whilequantifiedanddisclosed,werenotincludedintheregionaltotalbecausetheyareregulatedbystateandfederalmandates.Landfillemissionsfor2005,whilequantifiedanddisclosed,werenotincludedintheregionaltotalinordertoavoiddouble‐countingofwastesectoremissionsfor2005asemissionsforthissectorwere

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quantifiedbasedon2005wastegenerationinstead.GHGemissionsfortheregionareshownintableES‐1andFigureES‐1.TableES‐1andFigureES‐1representtheregion’sbaselineGHGinventoryfortheyear2005.ThelargestsourcesofGHGemissionsintheregionareBuildingEnergy(ElectricityplusNaturalGas),On‐RoadTransportationandAgriculture.

Table ES‐1. 2005 GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) 

Sector Emissions Percent

Directa

Agriculture—LivestockEmissions 1,113,647 18%

Agriculture—OtherEmissions 340,767 6%

BuildingEnergy—NaturalGas 973,386 16%

Off‐RoadTransportation 134,546 2%

On‐RoadTransportation 1,636,983 27%

HighGWP/Refrigerants 364,473 6%

Indirectb BuildingEnergy—Electricity 1,380,477 23%

WasteGeneration 49,667 0.8%

WastewaterTreatment 17,899 0.3%

Water 32,267 0.5%

Total 6,044,113 100%

Excluded

c

StationarySources 642,576

WasteLandfill 16,115

a. Directemissionsareemissionsthatphysicallyoccurwithintheinventoryboundary;seeChapter1fordetail.

b. IndirectemissionsareduetoactivitythatoccurswithintheinventoryboundaryalthoughtheGHGemissionmayhappeninsideoroutsidetheinventoryboundary;seeChapter1fordetail.

c. Stationarysourceemissionswereexcludedduetostateandfederalregulationofthesesources.Landfillemissionswereexcludedtoavoiddouble‐countingwithwastegenerationemissions.

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Figure ES‐1. 2005 GHG Emissions Inventory for the Stanislaus County Region (MT CO2e)—Sector View 

GHGemissionsintheregionaretheresultofdailyactivitiesofresidents,employees,businesses,farmsandindustryintheregion.AGHGinventoryreflectstheuniqueclimate,characterandeconomyofaparticularregion.Population,housingandemploymentforallparticipatingjurisdictionsin2005areshowninTableES‐2.TheSTANCOGTravelDemandModel(TDM)wasusedtoestimatesocioeconomicdatabecauseitrepresentsaconsistentsourceofdatabetweenalljurisdictionsandresultedinestimatesthataresimilartosocioeconomicdatafromothersources.Therearedifferingsocioeconomicdataestimatesfromdifferentsources,buttheTDMresultsareclosetotheseotherestimates.ThesocioeconomicdatainTableES‐2representthehouseholds,population,andjobswithineachjurisdiction’sgeographicalboundaries.Sphereofinfluenceboundarieswerenottakenintoconsiderationforthesocioeconomicdataestimates.

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Table ES‐2. Socioeconomic Data For All Participating Jurisdictions in 2005 

Jurisdiction Households Population Employment

Ceres 12,639 40,722 8,402

Hughson 1,915 6,091 749

Modesto 73,489 206,962 78,310

Newman 3,091 10,083 1,056

Oakdale 7,496 20,299 6,005

Patterson 5,414 19,167 2,273

Riverbank 6,477 21,417 3,452

Turlock 23,074 67,510 23,738

Waterford 2,447 8,169 476

UnincorporatedCounty 36,730 113,740 47,521

TotalStanislausCounty 172,772 514,160 171,982

Source:StanCOG2005asreportedbyFehr&Peers2012

Thejurisdictionsintheregionareconnectedeconomically,logisticallyandsocially.ThusexaminingGHGemissionsfortheregionasawhole,asthisdocumentdoes,isadvantageous.ForcertainaspectsofGHGreductionplanning,individualjurisdictionsmightopttopursueprogramsorpoliciesuniquetotheircommunity,butforothers,severalcommunitiesorallcommunitiesmayopttopursueprogramsandpoliciestogether.

FigureES‐2showspercapitaemissionsfortheStanislausregioncomparedtothestateaveragein2005andseveralotherjurisdictions.Ingeneral,percapitaemissionsintheStanislausregionwereverysimilartotherestofCaliforniain2005.EmissionstrendsspecifictoeachsectorarediscussedinChapters2.

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Figure ES‐2. Per Capita Emissions (Excluding Agriculture) Compared to Other Jurisdictions 

 

 

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Chapter 1 Background 

TheStanislausCountyRegionalGreenhouseGasInventoryProjectcompletedabaselinegreenhousegas(GHG)inventoryfortheentirecountyfortheyear2005.1AGHGinventoryiscommonlycompletedbyanentityseekingtobetterunderstandthesources,magnitude,andtrendsinGHGemissions.Commonentitiesincludenations,states,localgovernments,publicorganizationssuchasuniversitiesorajointpowersauthority,oraprivatecorporationorfacility(e.g.,asingleoilrefinery).AGHGinventorymayservethepurposesofregulatorycompliance,basicresearch,purchaseorsaleofGHGcreditsonthevoluntarymarket,orasabaselineformeasuringtheachievementsofvoluntaryorrequiredsustainabilitypractices.

StandardprotocolsexistforconductingGHGinventoriesatallscales.RulesandproceduresforGHGinventorieshavebeendevelopedbyavarietyofgovernmentandnon‐governmententitiesincludingtheIntergovernmentalPanelonClimateChangeorIPCC(apartoftheWorldMeteorologicalOrganizationorWMO),theU.S.EnvironmentalProtectionAgency(EPA),theCaliforniaAirResourcesBoard(CARB),theSanJoaquinValleyAirPollutionControlDistrict(SJVAPCD),theWorldResourcesInstitute,theCaliforniaClimateRegistry,ICLEI—LocalGovernmentsforSustainability,theAssociationofEnvironmentalProfessionalsandothers.

Priorto2006whenthestateofCaliforniapassedAssemblyBill(AB)32,themajorityofCaliforniacitiesandcountieshadnotcompletedaGHGinventory.Assuch,GHGreductionplanningatthelocalleveliscloselylinkedtostatelevelGHGplanningthathasoccurredsince2006.Further,manycommunities,includingthoseinStanislausCounty,arecompletingaGHGinventoryforthefirsttimeandfamiliarizingthemselveswiththeprocess.

ThissectionprovidesdefinitionsofcommontermsusedintheGHGinventoryprocess,abriefhistoryofGHGplanninginCalifornia,adescriptionoftheco‐benefitstypicallyassociatedwithGHGplanningandanoverviewofStanislausCounty.

Greenhouse Gas Definitions GreenhouseGas—AGHGisanygasthatabsorbsinfraredradiationintheatmosphere.GHGsinclude,butarenotlimitedto,watervapor,carbondioxide(CO2),methane(CH4),nitrousoxide(N2O),hydrochlorofluorocarbons(HCFCs),ozone(O3),hydrofluorocarbons(HFCs),perfluorocarbons(PFCs),andsulfurhexafluoride(SF6).Ofthese,allbutwatervaporandO3areregulatedunderAB32andaccountedforinthestate’sGHGinventory.

CommunityGHGInventory—AcommunityinventoryincludesGHGemissionsassociatedwiththeactivitiesofthecommunityasawhole,includingresidents,businesses,andthemunicipal

1GHGcommunityinventoriesfortheindividualjurisdictionsintheCountywerealsopreparedaspartofthisproject.Thecommunityinventorieswereprovidedseparatelytothejurisdictionsfortheiruse.

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governmentoperations.2Forexample,acommunityGHGinventoryincludesemissionsduetoenergyusedtopowerandheathomesandbusinesses;fuelusedbyvehiclesthathaveeitheranoriginordestinationwithinthejurisdiction;wastethatisgeneratedbyresidentsandbusinessesinthejurisdictionandsenttolandfills;fueluseatlargestationarysourcessuchasfactoriesorindustrialfacilities;livestockandfertilizeruse;fuelusebyoff‐roadequipment;andothers.

MunicipalGHGInventory—AmunicipalinventoryincludesGHGemissionsassociatedwithaCityorCounty’sservicesandmunicipaloperations.Forexample,amunicipalGHGInventoryincludesemissionsduetothefollowing:energyusedbyCityorCountybuildingssuchasthecourthouse,cityhallorthejail;fuelusedbytheCityorCountyvehiclefleet;wastegeneratedbytheCityandCountyemployees;processemissionsassociatedwithtreatingwastewateriftheCityorCountyoperatesaplant;fugitiveemissionsofmethanefromlandfillsiftheCityorCountyoperatesalandfill;andfuelusebyCityandCountyemployeescommutingtoandfromwork.TheGHGemissionsassociatedwithaCityorCounty’smunicipaloperationsaretypically1to5%ofthecommunity’semissionsasawhole.

UnitofMeasure—TheunitofmeasureusedthroughoutthisGHGinventoryisthemetrictonofCO2equivalent,abbreviatedasMTCO2e.Thisistheinternationalunitthatcombinesthedifferingimpactsofallgreenhousegasesintoasingleunit,bymultiplyingeachemittedgasbyitsglobalwarmingpotential(GWP).GWPisthemeasureofhoweffectiveagreenhousegasisattrappingheatintheearth’satmosphere.GWPcomparestherelativewarmingeffectoftheGHGinquestiontothatofcarbondioxide.3

Boundary—AGHGinventoryrepresentsemissionsduetoactivitiesassociatedwithacertainboundary.Thisboundarycanbeorganizational,operationalorgeographic.Theseboundariesdeterminewhichemissionsareaccountedforandreportedbytheentity.

DirectEmissions—DirectemissionsincludedirectreleasesofGHGsthatphysicallyoccurwithintheboundaryandarerelatedtofuelcombustion,processemissionsorfugitiveemissions.Forexample,thecombustionoffuelbyvehiclesdrivingwithintheboundary,thecombustionofnaturalgasorotherfuelbyindustriesorfacilitieswithintheboundaryorthereleaseofmethanefromlivestockphysicallylocatedwithinajurisdiction.4

IndirectEmissions—IndirectreleasesofGHGs.IndirectreleasesareGHGemissionsthatresultfromactivitythatoccurswithintheboundarybutthephysicalreleaseoftheGHGemissionoccursoutsideoftheboundary.Forexample,residentsandbusinesseswithinthecountyuseelectricitybyturningonlightsorotherelectronicequipmentbutthepowerplantwheretheelectricityisgenerated,andwherefuelisburnedtogeneratetheelectricity,maybelocatedfarawayfromthecounty.Electricityuseisconsideredanindirectemission.

2Municipalgovernmentemissionsareincludedintheregionalcommunityinventorywhentheemissionsoccurwithinthecountyboundaryoverall.Sometimesmunicipalgovernmentemissionsdonotoccurwithinthecommunityboundary.3TheGWPofCO2is,bydefinition,one(1).TheGWPvaluesusedinthisreportarebasedontheIPCCSecondAssessmentReport(SAR)andUnitedNationsFrameworkConventiononClimateChange(UNFCCC)reportingguidelinesandareasfollows:CO2=1,Methane(CH4)=21,NitrousOxide(N2O)=310,SulfurHexaflouride(SF6)=23,600(IPCC1996;UNFCCC2006).AlthoughtheIPCCFourthAssessmentReport(AR4)presentsdifferentGWPestimates,thecurrentinventorystandardreliesonSARGWPstocomplywithreportingstandardsandconsistencywithregionalandnationalinventories(IntergovernmentalPanelonClimateChange2007).4BiogenicCO2emissionsareexcludedfromtheinventoryastheydonotresultinnetatmosphericincreasesinCO2.

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ExcludedEmission—Inthisreport,twosourceswerequantifiedbutnotincludedintheregionaltotals.Stationarysourceemissionswereexcludedduetostateandfederalregulationandcontroloverthesesources.Landfillemissionsfor2005duetohistoricalwastegenerationwereexcludedbecauseemissionsassociatedwith2005wastegenerationwereconsideredforappropriatetoincludeasameasureof2005activity.

EmissionsSector—AnemissionssectorisacategoryofGHGemissionsreflectingthenatureoftheactivityproducingtheGHGemissions,forexamplebuildingenergyoron‐roadtransportation.GHGemissionssectorsincludedinthisinventoryare:agriculture,buildingenergy,off‐roadtransportation,on‐roadtransportation,highglobalwarmingpotentialgases(refrigerants),wastelandfills,wastegeneration,wastewatertreatment,waterconsumptionandstationarysources.

EmissionFactor—AnemissionfactorisauniquevalueequatingtheamountofGHGsemittedperunitofagivenactivity,forexamplemetrictonsofCO2pergallonofgasolineburned.

BaselineYear—Thebaselineyearforanyentityisthefirstyearforwhichemissionsareinventoriedandreported.Forthisinventory,thebaselineyearis2005.

ClimateActionPlan(CAP)/GreenhouseGasReductionPlan—“ClimateActionPlan”isatermcommonlyusedinCaliforniaforaplanningdocumentdesignedtoreduceanentity’sGHGemissionsoveraperiodoftime.Somecommunitiesusedifferenttermssuchasa“GreenhouseGasReductionPlan.”ThespecificcomponentsofaGHGreductionplanarenotrequiredbylaworarticulatedinCaliforniaGHGlegislation.However,airdistrictsandotheragenciessuchasICLEIhaveproducedguidanceforwhatshouldbeincludedinaGHGreductionplan.Inaddition,CEQAguidelinesadoptedin2010describeelementsrequiredinGHGreductionplansifajurisdictionintendstotierCEQAprojectcomplianceoffajurisdictionalreductionplan.GHGreductionplanstypicallyinclude:abaselineGHGinventory,aprojectionofGHGemissionsto2020(orotherfutureyears),aGHGreductiontargetfor2020(orotherfutureyears),GHGreductionstrategiesthattogetherachievethetarget,implementationactions,monitoringrequirements,andadaptivestepstobetakentoensurethejurisdictionmeetsitsidentifiedtarget.

Greenhouse Gas Emissions and Planning in the United States and California 

National and State Level Inventories 

EPAcompletesaGHGinventoryeachyearfortheUnitedStates.GHGinventorydataisavailableforeveryyearbeginningin1990.ThestateofCaliforniaalsocompletesanannualGHGinventoryanddataisavailablebeginningin2000.ThenationalandstateofCaliforniaGHGinventoriesfortheyear2005areshownbelowinFigure1‐1andTable1‐1inunitsofmillionMTCO2e.PleasenotethattheCaliforniaEnergyCommission(CEC)andtheEPApresentinventorydataslightlydifferently.

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Figure 1‐1. United States and California GHG Inventories in 2005 

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Table 1‐1a. United States GHG Inventory in 2005 

Sector MillionMTCO2e %oftotalnationalemissions

Transportation 2018 28

ElectricPower 2449 34

CommercialandResidentiala 745 10

Industrial 1438 20

Agriculture 496 7

U.S.Territories 58 1

Total 7204 100

Source:U.S.EnvironmentalProtectionAgency2012a. Includesemissionsfromlandfills,wastewatertreatment,on‐sitestationarycombustionsuchas

naturalgasandhighGWPsubstances

Table 1‐1b. California GHG Inventory in 2005 

Sector MillionMTCO2e %oftotalstateemissions

Transportation 186 38

ElectricPower 109 23

CommercialandResidential 41 9

Industrial 93 19

RecyclingandWaste 7 1

HighGWP 14 3

Agriculture 33 7

WildfireEmissions <1 <1

Total 483 100

Source:CaliforniaAirResourcesBoard2011a

Fossilfuelsareburnedtocreateelectricitywhichpowershomesandcommercial/industrialbuildings,tocreateheatandtopowerourvehicles.IntheUnitedStates,vehicleemissionsrepresentapproximately28%ofallemissions(U.S.EnvironmentalProtectionAgency2010a).Vehicleemissionsrepresentedapproximately38%ofallGHGsemittedbyCaliforniansin2005.EnergyusedtopowerbuildingsistheotherprimarysourceofGHGsintheUnitedStatesandCalifornia.OthersourcesofGHGemissionsincludeagriculture,landclearing,thedecompositionofwasteinlandfills,refrigerants,andcertainindustrialprocesses.

National and State Legislation 

AlthoughthereiscurrentlynofederaloverarchinglawspecificallyrelatedtoclimatechangeortheregulationofGHGs,pursuanttoauthorityundertheCleanAirAct,theUSEPAistakingaleadroleinregulatingcertainspecificemissionssourcesincludingstationarysources.KeylegislativeandregulatoryactionsaresummarizedinTable1‐2.

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TheStateofCaliforniahasadoptedlegislation,andregulatoryagencieshaveenactedpolicies,addressingvariousaspectsofclimatechangeandGHGemissionsmitigation.Muchofthislegislationandpolicyactivityisnotdirectedatlocaljurisdictionsbutratherestablishesabroadframeworkforthestate’slong‐termGHGmitigationandclimatechangeadaptationprogram.

SummariesofkeyregulationsandlegislationatthefederalandstatelevelsthatarerelevanttotheGHGplanningintheStanislausregionareprovidedinTable1‐2below.Figure1‐2displaysatimelineofkeystateandfederalregulatoryactivity.

Table 1‐2. Summary of Key Federal and State Legislation and Regulations  

Federal

Massachusettsetal.vs.U.S.EnvironmentalProtectionAgency(2007)

TwelvestatesandcitiesincludingCalifornia,inconjunctionwithseveralenvironmentalorganizations,suedtoforceEPAtoregulateGHGsasapollutantpursuanttotheCleanAirAct(CAA)inMassachusettsetal.v.EnvironmentalProtectionAgency549US497(2007).Thecourtruledthattheplaintiffshadstandingtosue,GHGsfitwithintheCAA’sdefinitionofapollutant,andtheEPA’sreasonsfornotregulatingGHGswereinsufficientlygroundedintheCAA.

U.S.EnvironmentalProtectionAgencyEndangermentFinding(2009)

Inits“EndangermentFinding,”theAdministratoroftheEPAfoundthatGHGs,asdescribedabove,threatenthepublichealthandwelfareofcurrentandfuturegenerations.TheAdministratoralsofoundthatthecombinedemissionsofthesewell‐mixedGHGsfromnewmotorvehiclesandnewmotorvehicleenginescontributetotheGHGpollutionthatthreatenspublichealthandwelfare.AlthoughtheFindingofEndangermentdoesnotplacerequirementsonindustry,itisanimportantstepinEPA’sprocesstodevelopregulation.ThismeasureisaprerequisitetofinalizingEPA’sproposedGHGemissionstandardsforlight‐dutyvehicles,whichwerejointlyproposedbyEPAandtheDepartmentofTransportation’sNationalHighwaySafetyAdministrationin2009.

U.S.EnvironmentalProtectionAgencyCauseorContributeFinding(2010)

Inits“CauseorContributeFinding”theEPAAdministratorfoundthatthecombinedemissionsofthesewell‐mixedGHGfromnewmotorvehiclesandnewmotorvehicleenginescontributetotheGHGpollutionthatthreatenspublichealthandwelfare.

U.S.EnvironmentalProtectionAgencyMandatoryReportingRuleforGHGs(2009)

Undertherule,suppliersoffossilfuelsorindustrialGHGs,manufacturersofvehiclesandengines,andfacilitiesthatemit25,000MTormoreperyearofGHGsarerequiredtoreportannualemissionstotheEPA.Thefirstannualreportsforthelargestemittingfacilities,coveringcalendaryear2010,weresubmittedtotheEPAin2011.ThemandatoryreportingruledoesnotlimitGHGemissionsbutestablishesastandardframeworkforemissionsreportingandtrackingoflargeemitters.

U.S.EnvironmentalProtectionAgencySettlementAgreementstoAddressGHGEmissionsfromRefineriesandElectricityGeneration(2010)

In2010,theEPAenteredintotwosettlementagreementstoissuerulesthatwilladdressGHGemissionsfromfossilfueledpowerplantsandrefineries.RegulationsonbothtypesoffacilitieswillbecoordinatedwithregulatoryactionontraditionaltypesofpollutantsandpromulgatedthroughtheNewSourcePerformanceStandards(NSPS).TheauthoritytoissueregulationsisundertheCleanAirActasconfirmedbytheU.S.SupremeCourtruling.

UpdatetoCorporateAverageFuelEconomy(CAFE)Standards(2009,2012)

TheCorporateAverageFuelEconomy(CAFE)standardsestablishstricterfueleconomyrequirementsandrequireautomakerstocutGHGemissionsinnewvehiclesbyroughly25%by2016.Newstandardsformodelyears2017–2025wereissuedin2012andwillachieveafleetaveragein2025of54.5milespergallon.

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State

ExecutiveOrderS‐03‐05(2005)

ExecutiveOrder(EO)S‐03‐05establishedthefollowingGHGemissionreductiontargetsforCalifornia’sstateagencies.

By2010,reduceGHGemissionsto2000levels.

By2020,reduceGHGemissionsto1990levels.

By2050,reduceGHGemissionsto80%below1990levels.

Executiveordersarebindingonlyonstateagenciesandnotonlocalgovernmentsorprivateproperties.Accordingly,EOS‐03‐05willguidestateagencies’effortstocontrolandregulateGHGemissionsbutwillhavenodirectbindingeffectonlocalefforts.TheSecretaryoftheCaliforniaEnvironmentalProtectionAgency(Cal/EPA)isrequiredtoreporttotheGovernorandstatelegislaturebiannuallyontheimpactsofglobalwarmingonCalifornia,mitigationandadaptationplans,andprogressmadetowardreducingGHGemissionstomeetthetargetsestablishedinthisexecutiveorder.

AssemblyBill1493—PavleyRules(2002,amendments2009)/AdvancedCleanCars(2012)

Knownas“PavleyI,”AssemblyBill(AB)1493standardswerethenation’sfirstGHGstandardsforautomobiles.AB1493requiredtheCaliforniaAirResourcesBoard(CARB)toadoptvehiclestandardsthatwilllowerGHGemissionsfromnewlightdutyautostothemaximumextentfeasiblebeginningin2009.AdditionalstrengtheningofthePavleystandards(AdvancedCleanCars)wasadoptedforvehiclemodelyears2017–2025.Together,thetwostandardsareexpectedtoincreaseaveragefueleconomytoroughly43mpgby2020andreduceGHGemissionsfromthetransportationsectorinCaliforniabyapproximately14%.ThenewfederalCAFEstandards,describedabove,aretheanalogousnationalpolicy.

SenateBills1078/107andSenateBill1—RenewablePortfolioStandard(2002,2006,2011)

California’sRenewablePortfolioStandard(RPS),obligatesinvestor‐ownedutilities(IOUs),energyserviceproviders(ESPs),andCommunityChoiceAggregations(CCAs)toprocure33%ofretailsalesfromeligiblerenewablesourcesby2020.TheCaliforniaPublicUtilitiesCommission(CPUC)andCECarejointlyresponsibleforimplementingtheprogram.

AssemblyBill32—CaliforniaGlobalWarmingSolutionsAct(2006)

AB32codifiedthestate’sGHGemissionstargetbyrequiringthatthestate’sglobalwarmingemissionsbereducedto1990levelsby2020.Sincebeingadopted,theCARB,CEC,CPUC,andBuildingStandardsCommissionhavebeendevelopingregulationsthatwillhelpmeetthegoalsofAB32andEOS‐03‐05.TheScopingPlanforAB32identifiesspecificmeasurestoreduceGHGemissionsto1990levelsby2020,andrequiresCARBandotherstateagenciestodevelopandenforceregulationsandotherinitiativesforreducingGHGs.Specifically,theScopingPlanarticulatesakeyroleforlocalgovernments,recommendingtheyestablishGHGreductiongoalsforboththeirmunicipaloperationsandthecommunityconsistentwiththoseofthestate(i.e.,approximately15%belowcurrentlevels).

ExecutiveOrderS‐01‐07—LowCarbonFuelStandard(2007)

EOS‐01‐07essentiallymandates:(1)thatastatewidegoalbeestablishedtoreducethecarbonintensityofCalifornia’stransportationfuelsbyatleast10%by2020,and(2)thataLowCarbonFuelStandard(LCFS)fortransportationfuelsbeestablishedinCalifornia.

AssemblyBill939,title27(2009)—LandfillMethaneRegulation

ThisregulationisadiscreteearlyactionGHGreductionmeasure,asdescribedintheCaliforniaGlobalWarmingSolutionsActof2006(AB32;Stats.2006,chapter488).Itwillreducemethaneemissionsfromlandfillsprimarilybyrequiringownersandoperatorsofcertainuncontrolledlandfillstoinstallgascollectionandcontrolsystems,andbyrequiringexistingandnewlyinstalledgascollectionandcontrolsystemstooperateoptimally.

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SenateBill375—SustainableCommunitiesStrategy(2008)

SB375providesforanewplanningprocessthatcoordinateslanduseplanning,regionaltransportationplans,andfundingprioritiesinordertohelpCaliforniameettheGHGreductiongoalsestablishedinAB32.SB375requiresregionaltransportationplans,developedbymetropolitanplanningorganizations(MPOs)toincorporatea“sustainablecommunitiesstrategy”(SCS)intheirRegionalTransportationPlans(RTPs).ThegoaloftheSCSistoreduceregionalvehiclemilestraveled(VMT)throughlanduseplanningandconsequenttransportationpatterns.CARBsetregionalGHGreductiontargetsthatwillfocuseachSCS.TheregionaltargetswerereleasedbyCARBinSeptember2010.SB375alsoincludesprovisionsforstreamlinedCaliforniaEnvironmentalQualityAct(CEQA)reviewforsomeinfillprojectssuchastransit‐orienteddevelopment.StanCOGispreparingtheSCSforStanislausCountyandisscheduledtocompleteandadopttheSCSinlate2013.

CaliforniaTitle24EnergyEfficiencyandGreenBuilding(2008,2011,2014)

Title24providesvoluntaryandmandatoryenergyefficiencystandardsfornewresidentialandnon‐residentialbuildings,aswellasmajormodificationstoexistingbuildings.Thelastupdatewasadoptedin2013,whichtakeseffectin2014.TheCaliforniaGreenBuildingStandardsCode(includedinTitle24)establishedrequirementsforplanninganddesignforsustainablesitedevelopment,waterconservation,materialconservation,andinternalaircontaminants.

CARBGHGMandatoryReportingRuleTitle17(2009)

CARBapprovedarulerequiringmandatoryreportingofGHGemissionsfromcertainsources,pursuanttoAB32.Facilitiessubjecttothemandatoryreportingrulemustreporttheiremissionsfromthecalendaryear2009andhavethoseemissionsverifiedbyathirdpartyin2010.Ingeneraltheruleappliestofacilitiesemittingmorethan25,000MTCO2einanygivencalendaryearorelectricitygeneratingfacilitieswithanameplategeneratingcapacitygreaterthan1megawatt(MW)and/oremittingmorethan2,500MTCO2eperyear.Additionalrequirementsalsoapplytocementplantsandentitiesthatbuyandsellelectricityinthestate.

CaliforniaCapandTradeProgram(2011)

CARBadoptedtheCaliforniaCapandTradeprogram,formalizingacomplexmarketsystemdesignedtohelpCaliforniareachtheGHGemissionsreductionstargetssetforthinAB32.TheregulationwhichwentintoeffectonJanuary1,2013andwasidentifiedasakeystrategyintheAB32ScopingPlan,setsacapontheannualGHGemissionsfromthestate’slargestemitters,stationarysourcessuchasoilrefineries,powerplants,fueldistributioncenters,cementplantsandotherindustrialprocesses.Theregulationestablishesapricesignalwhichwilldrivelongterminvestmentincleanerfuelsandefficientenergyuse.

AB341MandatoryCommercialRecycling(2011)

Thislegislationrequirescommercialbusinessesandmulti‐familybuildingownerstosupportthereuse,recycling,compostingorotherdiversionofsolidwastefromdisposalbyeitherself‐haul,subscriptiontoahauler,arrangementforpickupofrecyclablematerialsorsubscriptiontoarecyclingservice.Thelawtookeffectinmid‐2012.

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Figure 1‐2. GHG Related Legislation, Regulation, and Executive Orders  

StanCOG RTP/SCS

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Local Level Planning 

TheAB32ScopingPlanlaysoutCalifornia’splanforachievingtheGHGreductionsrequiredbyAB32.SpecificallytheScopingPlandescribesalistofmeasuresthatthestatewillundertake,andtheexpectedGHGreductionsassociatedwiththesemeasuresbefore2020.BecausethestatedoesnothavejurisdictionalcontroloversomeoftheactivitiesthatproduceGHGemissionsinCalifornia,theAB32ScopingPlanarticulatesauniqueroleforlocalgovernmentsinachievingthestate’sGHGreductiongoals.TheAB32ScopingPlanrecommends,butdoesnotrequire,localgovernmentstoreduceGHGemissionsfromboththeirmunicipaloperationsandthecommunityatlargetoalevelthatis15%belowcurrentlevels.

AtthetimeoftheScopingPlanadoptionin2008,a15%reductionfrom2005–2008levelswasthestate’sburdenofreductiontomeet1990emissionslevels.However,thiscalculationwasbasedonanestimateonlyofthelevelofemissionsduringtheperiod2005to2008.Subsequentdevelopmentofactualinventoriesfor2005to2008indicatesthata10%to11%reductionisneededby2020tomeet1990emissionslevels.

ManyjurisdictionsacrossCaliforniahavecompletedaGHGInventory,aGHGreductionplan,orboth.Theseplansgenerallyaddresstwotypesofemissions.

Communityinventoryandreductionplansaddressemissionsthatarisefromthecommunityatlarge(residents,businessesandtheirassociatedactivitieswithinthejurisdictionalboundary).

Municipalinventoryandreductionplansaddressemissionsthatarisefromthemunicipaloperationsonly(CountyorCitybuildings,vehiclefleet,activitiesrequiredtoprovideservicestothejurisdiction).

CompletingaGHGinventoryisthefirststeptowardseitherofthesegoals.Inadditiontothisregionalcommunityinventory,thecitiesandunincorporatedareaofStanislausCountypreviouslycompletedmunicipalGHGinventoriesfortheyear2005.AsaseparatepartoftheRSTproject,communityinventoriesweredevelopedforeachjurisdictionfortheyear2005usingthesamemethodologyusedfortheregionalinventoryandprovidedtothemfortheiruse.

ThisreportpresentsacommunityGHGinventorydatafortheregionasawhole(sumofemissionsfromallincorporatedcitiesandtheunincorporatedcounty)forthebaselineyear2005.

Benefits of Greenhouse Gas Planning and Accurate Accounting 

LocalgovernmentsoftenpursueGHGplanningformultiplereasons.AreductioninGHGemissionsisoftenaco‐benefitofotheractivities,primarilyenergyefficiencyrelatedactivitiesorotherenvironmentalmitigation.WithaccurateaccountingofGHGemissionsinthejurisdiction,acommunitycan“takecredit”fortheGHGbenefitsassociatedwitharangeofpolicies,programsandactivitiesthatthejurisdictionispursuinganyway.Thissectiondescribesco‐benefitstypicallyassociatedwithGHGaccountingandplanningandviceversa.

Greenhouse Gas Reduction Benefits 

Thecompletionofacommunityand/ormunicipalGHGinventoryandthesubsequentsteptoidentifypoliciesandprogramsthatwillreduceGHGemissionsovertimecandemonstratethatlocal

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planningispromotingconsistencywithAB32,(i.e.,thatalocalgovernmentisdoingitsfairsharetohelpmeetthestategoalsoverall).

Energy Use Benefits 

InthestateofCalifornia,GHGemissionsassociatedwiththeenergyusedtopowerandheatourbuildingsrepresentapproximately23%oftotalGHGemissionsin2005.BuildingenergyrelatedemissionsrepresentasimilarpercentoftotalemissionsattheCityorCountylevelaswell.Forfinancialreasons,includingtheincreasedavailabilityofutilityincentivesandretrofitgrants,localgovernments,home‐ownersandbusinessesopttoconductenergyefficiencyretrofitstoexistingconstruction.Buildingordinancesfornewerconstructionensureoptimumenergysavingsfornewoccupants.TheseenergysavingsbenefittheenergycustomeraswellastheutilityandalsoresultinlowerGHGemissions.

Financial Benefits 

Inadditiontothefinancialbenefitsassociatedwithenergyefficientconstructionandretrofits,otherfinancialsavingsareoftenassociatedwithactionscommonlypursuedaspartofaCityorCounty’sGHGplanning.Forexample,whenwastediversionprogramsdecreasetheamountofwastegoingtolandfills,fewerlandfillfeesarepaid.Whencomprehensivewaterconservationeffortsarepursued,waterbillsarelower.Duringtimesofhighfuelcosts,alternativemodesoftransportationincludingbus,rail,bike,ride‐shareoremployersponsoredshuttlescangreatlyreduceindividual’sfuelcosts.Intheagricultureandforestrysectors(andothers)itisalsopossibletodevelopGHGoffsetprojectsbyestablishingspecificmanagementpracticesorinstallingspecificequipmentonthesite.Theoffsetprojectcanthenbesoldonthevoluntarymarket.Finally,throughtheeffortsofgatheringthedatarequiredtocompleteaGHGinventoryandregularlyupdateit,manycommunitiesidentifywaystostreamlinedataandreportingforotherprograms,increasingefficiencywithincitydepartments.

Additional Co‐Benefits 

Additionalco‐benefitsofGHGplanningandaccountingaregenerallyassociatedwithimprovedairquality,increasedsustainabilityofthewatersupply,increasedaestheticsincommunitiesandpublichealth.

Tiering under CEQA 

AmendmentstotheCEQAguidelinesinMarch2010describethatCEQAprojectevaluationofGHGemissionscantieroffaprogrammaticanalysisofGHGemissionsreductionsprovidedthattheGHGreductionplanincludesthefollowing(CEQAGuidelinesSection15183.5):

1. Quantifygreenhousegasemissions,bothexisting(a)andprojected(b)overaspecifiedtimeperiod,resultingfromactivitieswithinadefinedgeographicarea.

2. Establishalevel,basedonsubstantialevidence,belowwhichthecontributiontoGHGemissionsfromactivitiescoveredbytheplanwouldnotbecumulativelyconsiderable.ThisusuallyinvolvessettingaGHGreductiontargetaspartoftheplanthatisconsistentwiththestate’sgoals.ParticipatingjurisdictionsinStanislaushavenotsetGHGreductiontargetsaspartofthiseffort.

3. IdentifyandanalyzetheGHGemissionsresultingfromspecificactionsorcategoriesofactionsanticipatedwithinthegeographicarea.

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4. Specifymeasuresoragroupofmeasures,includingperformancestandardsthatsubstantialevidencedemonstrates,ifimplementedonaproject‐by‐projectbasis,wouldcollectivelyachievethespecifiedemissionslevel.

5. Monitortheplan’sprogress.

6. AdopttheGHGReductionStrategyinapublicprocessfollowingenvironmentalreview.

TheAmendmentstotheCEQAguidelinescreateastreamlinedCEQAprocessfortheanalysisofgreenhousegasemissionsattheprojectlevel.Individualprojectscoulddemonstrateconsistencywithanover‐archingGHGreductionplan,whereoneexists,inlieuofacomprehensiveproject‐levelGHGanalysisinordertoreachalessthansignificantdetermination.ThisapproachisalsosupportedbytheSanJoaquinAirPollutionControlDistrict.

Thisreportquantifiesexistinggreenhousegasemissionsonly(baselineyear2005)withinthecountyboundary.ToprepareaqualifiedGHGreductionplanthatcouldbeusedforCEQAtiering,Stanislausjurisdictionswouldneedtousetheseparatelypreparedindividualjurisdictionalcommunityinventoriesandthencompletesteps1b–6above.

Overview of Stanislaus County 

StanislausCountyislocatedinCalifornia’sCentralValleyandisborderedbySanJoaquinCountytothenorth,MercedCountytothesouth,SantaClaraCountytothewestandCalaverasandTuolumneCountiestotheeast.TheSanJoaquinRiverflowsnorththroughthecenterofthecountyandeasternareasofthecountyareknownasthe“gatewaytoYosemite”.NineincorporatedcitiesarepresentinStanislausCounty:Ceres,Hughson,Modesto,Newman,Oakdale,Patterson,Riverbank,TurlockandWaterford.Themajorindustryintheunincorporatedcountyisagriculture.SignificantindustriesinStanislauscitiesincludethefollowing:foodpackagingandprocessing,agriculturalsupport,wineproduction,agriculture,governmentofficesandeducation,andtourism.AccordingtotheU.Scensus,thetotalpopulationofStanislausCountywas446,997in2000and514,453in2010.In2005,thepopulationofStanislausCountywas514,160.Socioeconomicdata(population,jobsandhousing)foralljurisdictionsinStanislausCountyforyear2005areshownbelowinTable1‐3.

Table 1‐3. Socioeconomic Data for All Participating Jurisdictions in 2005 

Jurisdiction Households Population Employment

Ceres 12,639 40,722 8,402

Hughson 1,915 6,091 749

Modesto 73,489 206,962 78,310

Newman 3,091 10,083 1,056

Oakdale 7,496 20,299 6,005

Patterson 5,414 19,167 2,273

Riverbank 6,477 21,417 3,452

Turlock 23,074 67,510 23,738

Waterford 2,447 8,169 476

UnincorporatedCounty 36,730 113,740 47,521

TotalStanislausCounty 172,772 514,160 171,982

Source:StanCOG2005asreportedbyFehr&Peers2012

 

 

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Chapter 2 Sector Summaries 

Thissectionpresentsthe2005StanislausRegionalGHGemissionsinventory.Resultsarepresentedbysector.TheGHGemissionsfortheregionasawhole(i.e.,“regionalinventory”)for2005arepresentedinTable2‐1andFigure2‐1.Percapita(Totalemissions/population)andperservicepopulation(Totalemissions/populationplusjobs)emissionsfortheStanislausregionwere11.8MTCO2e/personand8.8MTCO2e/servicepopulation(SP),respectively.ThesevaluesincludeAgriculture.Thefollowingsub‐sectionseachdescribeadifferentsectoroftheinventory.Thephysicalprocessesresultinginemissionswillbedescribedforeachandageneraloverviewofemissionsinthesectorwillbeprovided.Completediscussionofthedataacquisition,emissionscalculationsandmethodologies,anddatasourcesusedcanbefoundinChapter3.

Table 2‐1. 2005 GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) 

Sector Emissions Percent

Directa

Agriculture—LivestockEmissions 1,113,647 18%

Agriculture—OtherEmissions 340,767 6%

BuildingEnergy—NaturalGas 973,386 16%

Off‐RoadTransportation 134,546 2%

On‐RoadTransportation 1,636,983 27%

HighGWP/Refrigerants 364,473 6%

Indirectb BuildingEnergy—Electricity 1,380,477 23%

WasteGeneration 49,667 0.8%

WastewaterTreatment 17,899 0.3%

Water 32,267 0.5%

Total 6,044,113 100%

Excluded

c

StationarySources 642,576

WasteLandfill 16,115

a. Directemissionsareemissionsthatphysicallyoccurwithintheinventoryboundary;seeChapter1fordetail.

b. IndirectemissionsareduetoactivitythatoccurswithintheinventoryboundaryalthoughtheGHGemissionmayhappenoutsidetheinventoryboundary;seeChapter1fordetail.

c. Stationarysourceemissionswereexcludedduetostateandfederalregulationofthesesources.Landfillemissionswereexcludedtoavoiddouble‐countingwithwastegenerationemissions.

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Figure 2‐1. GHG Emissions Inventory for the Stanislaus County Region (MT CO2e) 

Agriculture Emissionsintheagriculturesectoraredirectemissionsresultingfromtheapplicationoffertilizertocropsandtheactivityoflivestock5.EmissionsofN2Ocanresultfromanthropogenicinputsofnitrogenintosoilthroughfertilizersbywayofadirect(directlyfromthesoilstowhichthenitrogenisaddedandreleased)andindirect(followingvolatilizationofammoniaandoxidesofnitrogenfrommanagedsoils)pathway(IntergovernmentalPanelonClimateChange2006).EmissionsofCH4andN2Ocanalsoresultfromlivestockproductionthroughentericfermentationandmanuremanagement.BothdirectandindirectemissionsofN2Oareaccountedforinthisinventory.

5LivestockrelatedGHGemissionsresultfromentericfermentation,byruminants,andalsofrommanurebyalllivestocktypes.Thedecompositionofmanureinponds,stockpilesorothermanurestorageandtreatmentsystemsresultsinthereleaseofCH4andN2O,dependingonconditions.

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Agricultureemissionsaccountforapproximately24%oftheregion’stotalGHGemissionsinventoryin2005.Comparatively,agriculturalemissionsinthestateofCaliforniawereapproximately7%oftotalemissionsin2005.StanislausCountyisalargeagricultureproducingregionforthestateandforthenation.AsCaliforniaagricultureisconcentratedincertainareasofthestate,agriculturalrelatedemissionswillonlybeasignificantfractionoftotalemissionsinselectcommunities,suchastheunincorporatedportionsofStanislausCounty.StanislausCountyranked6thamong58countiesinCaliforniafortotaldollarvalueofagricultureproducts,ranked4thamong58countiesfortotalvalueoflivestockproductsandranked2ndamong58countiesforalmondproduction(USDACensusofAgriculture2007).In2005,agricultureemissionsinStanislausrepresentapproximately4.5%ofagriculturerelatedemissionsstatewide.

Thefourgeneralsourcesofagriculturalemissionsaccountedforinthisinventoryare:livestockentericfermentation,livestockmanuremanagement,N2Oemissionsfromtheapplicationoffertilizerandpesticide,andtheburningoffuelbyagriculturalvehiclesandequipment.AcompletedescriptionofmethodsanddatausedcanbefoundinChapter3.Table2‐2andFigure2‐2present2005agricultureemissionsbysource.Figure2‐3comparesStanislausCounty’sagriculturalemissionstothestateandnationalagriculturalemissions,whileTable2‐3comparesthecounty’sagriculturalemissionstootheragriculturalproducingcountiesinCalifornia.

Table 2‐2. GHG Emissions from Agriculture Sources in 2005 (MT CO2e) 

AgriculturalSource TotalSectorEmissions Percentage

LivestockEntericFermentationandManureManagement 1,113,647 76.6%

FertilizerApplication 169,120 11.6%

PesticideUsage 2,090 0.1%

AgriculturalEquipment 169,557 11.7%

TotalEmissions 1,454,414 100.0%

Stanislaus County  Sector Summaries 

 

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Figure 2‐2. GHG Emissions from Agriculture Sources in 2005 (MT CO2e) 

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Figure 2‐3. Comparison of Stanislaus GHG Emissions from Agriculture to National and State Level  Agriculture Emissions 

Table 2‐3. Stanislaus Agriculture Emissions Compared to Other California Agriculture Producing Counties 

CountyAgriculture‐RelatedEmissions(MTCO2e) Year SourcesIncludedinEmissions

StanislausCountya 1,454,414 2005 Allagriculturesources

SanJoaquinCountyb 951,023 2007 Allagriculturesources

TulareCountyc 3,294,870 2007 Dairy/feedlots

YoloCountyd 297,341 2008 Allagriculturesources

Note:a. Thisworkb. SanJoaquinCounty2011c. TulareCounty2011d. YoloCounty2010

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Building Energy GHGemissionsresultfromtheuseofelectricityandnaturalgasbyresidential,commercial,andindustrialbuildingsintheregion.Emissionsassociatedwithbuildingenergyuseaccountedfor39%ofthetotalregionalemissionsin2005(Table2‐1).ResidentsandbusinessintheregionreceiveelectricityandnaturalgasfromPacificGasandElectric(PG&E),TurlockIrrigationDistrict(TID)andModestoIrrigationDistrict(MID).Electricityuseinbuildingsresultsinindirectemissionsfromthepowerplantsthatproduceelectricity.Theseplantsmaybelocatedeitherwithinoroutsideofthecountyandthecombustionofthefueltoproducetheelectricityalwaysoccursinadifferentlocationfromtheuser.Electricityemissionsareclassifiedasindirectemissions.Naturalgasconsumptioninbuildingsbyfurnacesandotherappliancesresultindirectemissionswherethenaturalgasiscombusted;theseareclassifiedasdirectemissions.

Table2‐4presentstheenergyconsumption(residential,commercialandindustrialbuildings)in2005fortheregion.TheproportionsofenergytypeandenduserstotheregionaltotalofGHGemissionsinthissectorareshowninFigure2‐4.ThisdatacapturesdirectaccesscustomersinthePG&Eservicearea.MIDandTIDconfirmedtheabsenceofdirectaccesscustomersintheirserviceareas.Buildingenergyuseemissionsaregenerallyafunctionofthenumberofresidentsandbusinesses,typesandagesofbuildings,predominanttypesofindustryandthecompositionofthepowersupply.

Table 2‐4. Building Energy Consumption—Residential and Commercial/Industrial Electricity and Natural Gas in 2005 

ResidentialBuildingEnergyUse Commercial/IndustrialBuildingEnergyUse

Electricity(kwh)NaturalGas(therms) Electricity(kwh)

NaturalGas(therms)

RegionalTotal 1,682,405,061 64,710,119 2,592,105,029 118,233,329

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Figure 2‐4. Proportion of Regional GHG Emissions in the Building Energy Sector Due to Electricity and Natural Gas Use by Various End Users (MT CO2e)  

Buildingenergyrelatedemissionswithintheregionaretheresultofcommercial/industrialelectricityconsumption(36%)followedbycommercial/industrialnaturalgasconsumption(27%),residentialelectricity(23%)andresidentialnaturalgas(15%).

BuildingenergyrelatedemissionsinthestateofCaliforniaaccountedforapproximately23%oftotalstateGHGemissionsin2005,whilebuildingenergyemissionswereapproximately39%oftotalStanislausregionalemissionsin2005(CaliforniaAirResourcesBoard2011a).Buildingenergyuseistypicallybetween25–40%ofacommunity’stotalGHGemissionsdependingontheotherdominantsourcesofemissionsinthecommunity,thepresenceorabsenceoflargecommercialorindustrialusers,andtheclimateandageofthebuildingstock(i.e.,olderhomesincolderregionsofthestaterequiremoreheating).

On‐Road Transportation ThissectorincludesGHGemissionsthatresultfromtheburningoffuelbyon‐roadvehiclestravelingintheregion.On‐roadvehicleemissionsaccountfor27%oftheregion’stotalemissionsin2005andapproximately38%ofCalifornia’sstatewideemissionsduringthesameyear.Theseemissionsareconsidereddirectemissions.

TheStanislausCouncilofGovernments,orStanCOG,traveldemandmodelwasusedtodevelopvehiclemilestraveled(VMT)estimatesfortheregionin2005(FehrandPeers2012).Themodelcapturesvehicletrips,includingtrucktrips,bydifferenttravelpurposes,includinghome‐basedwork,shoppingandrecreationaltrips,andnon‐homebasedtrips.ThetraveldemandmodelareaincludesallofStanislausCounty.Adjacentcounties(SanJoaquin,Merced,SantaClara,Calaveras,

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Tuolumne,Mariposa,andAlameda)arerepresentedbyexternalgatewayswheremajorroadwaysprovideaccessintotheoverallmodelarea.Thesestationscapturethetrafficentering,exitingorpassingthroughthemodelareaonmajorcountyandstateroadways(e.g.,StateRoute99,Interstate5,andStateRoute108).

TransportationmodelingandthequantificationofGHGsinthisanalysisareconsistentwiththemethodsbeingusedforthedevelopmentofStanCOG’sSustainableCommunitiesStrategy.

Table2‐5andFigure2‐5presentregionalVMTandassociatedGHGemissionsin2005byvehiclespeedbins.Becausethefueleconomyofvehiclesdependsonthespeed,thefuelconsumptionandGHGemissionspartiallydependonthespeedatwhichvehiclesaregenerallytraveling.Ingeneral,themajorityofVMTintheregionoccuratspeedsbetween35and50milesperhour(mph)withabout15%occurringabovespeedsof60mph(highwaytraffic).

Table 2‐5. Regional VMT and GHG Emissions by Speed Bin 

SpeedBin(MPH) AnnualVMT AnnualCO2Emissions(MTCO2)

0‐5 17,380,883 23,690

5‐10 15,549,764 16,374

10‐15 10,893,718 9,147

15‐20 11,154,315 7,746

20‐25 34,372,085 20,845

25‐30 305,504,699 166,798

30‐35 268,670,649 135,914

35‐40 838,474,144 404,119

40‐45 282,636,011 133,411

45‐50 373,459,791 177,517

50‐55 59,046,214 29,083

55‐60 100,798,989 53,002

60‐65 266,157,328 154,179

65‐70 450,077,391 265,409

Total 3,034,175,981 1,597,233

Note:TheemissionsinthistableareCO2emissions,notCO2eemissions.CH4andN2Oemissionsfromon‐roadtransportationwerecalculatedusingadifferentmethodology.

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Figure 2‐5. Regional GHG Emissions by Speed Bin in 2005 (MT CO2) 

Off‐Road Transportation Thissectorcapturesfuelconsumptionbyalltypesofoff‐roadvehiclesandequipmentbeingusedintheregion,referredtointhisdocumentas“Off‐RoadTransportation”.Off‐roadequipmentincludesrecreationalboatsandvehicles,equipmentforindustry,construction,andlawnandgardenmaintenance(agriculturalequipmentwasincludedintheagriculturalsector).GHGemissionsresultfromthecombustionofdieselorgasolinetopowerthesevehiclesandequipment.TheseemissionswerecalculatedatthecountylevelusingCARB’sOFFROAD2007model.Off‐roadequipmentemissionsaccountedforapproximately2%ofthetotalregionalemissionsin2005(Table2‐1,Figure2‐1).Theseemissionsaredirectemissionsresultingfromequipmentfuelcombustion.Table2‐6andFigure2‐6presenttheregionalGHGemissionsduetooff‐roadequipmentin2005byequipmenttype.Constructionand/orminingequipmentaccountfor51%ofthetotalregionalemissionsinthissector.

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Table 2‐6. Regional GHG Emissions Due to Off‐Road Equipment in 2005 by EquipmentType 

EquipmentType Off‐RoadEmissions(MTCO2e)

ConstructionandMiningEquipment 68,857

EntertainmentEquipment 123

IndustrialEquipment 17,225

LawnandGardenEquipment 8,348

LightCommercialEquipment 9,300

OtherPortableEquipment 67

PleasureCraft 12,595

RailyardOperations 2

RecreationalEquipment 5,198

TransportRefrigerationUnits 12,833

Total 134,546

Note:Emissionsfromoff‐roadvehiclesinthecountyweredeterminedusingCARB’sOFFROAD2007model.TheOFFROADmodelprovidestheamountandtypeoffuelconsumedatthecountylevelforawidevarietyofoff‐roadvehicleandequipmentcategories,suchasconstructionequipment,lawnandgardenequipment,andindustrialequipment.

Figure 2‐6. GHG Emissions Due to Off‐Road Equipment in 2005 from Various Off‐Road Equipment Types 

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Stationary Sources ThissourcecategoryaccountsforGHGemissionsfromfuelcombustionandfugitive(process)emissionsatprimarilyindustrialfacilitieslocatedintheregion.Emissionsfromthesefacilities,includingGHGemissions,areregulatedbySJVAPCD,CARB,and/ortheUSEPAandlocaljurisdictionsusuallydefertostateandfederalauthoritytoregulatethesesources.Inaddition,giventhestateandfederalframeworkofregulation,localregulationofsuchsourcescouldresultinconfusionandinconsistenciesintheregulationofsuchlargesourcesbetweenjurisdictions,whichisundesirable.Thus,whileemissionswerequantifiedfromstationaryindustrialsourcetheywereexcludedfromGHGtotalsfortheregion.Werethesesourcestobeincludedintheregionaltotal,emissionsfromthesesourceswouldaccountforapproximately10%oftotalregionalemissionsin2005andareprimarilyassociatedwithfacilitiesthatsupporttheagricultureorfoodpackagingindustry.

GHGemissionsfromstationarysourcesresultfromonsitefuelusethatisnotprovidedbyacentralnaturalgasutilitysuchasPG&E(naturalgasuseisaccountedforinthebuildingenergycategory(Chapter1,Background).Combustedfuelsaccountedforinthissectorincludediesel,distillateoil,liquidpetroleumgas,propane,naturalgas(fromnon‐utilitysources),digestergas,gasoline,wastegas,wasteoil,vaporrecoverygas,landfillgasoranyfuelcombustedbyasourcerequiredtoobtainapermitfromtheSJVAPCD.AnumberofstationarysourcesintheregionarealsorequiredtoreportGHGemissionstoCARBunderCalifornia’sMandatoryReportingRule(MRR)forGHGemissions.PerSJVAQCDpolicy,fuelusedatausedtoestimateGHGemissionsinthisreportdoesnotincludefacilitiesthathaverequestedtheirfuelusebekeptconfidential.FuelusedbyequipmentnotrequiringaDistrictpermit,suchasresidentialcombustionequipment,portableequipment,mobileequipment,andpermitexemptstationarycombustionequipment,isalsonotincludedintheestimateofGHGemissionsfromstationarysources.

Severalpowergenerationfacilitiesarelocatedintheregion.EmissionsassociatedwiththesefacilitiesarecapturedintheBuildingEnergysectorwheretheenduseactivityoccurs.

Waste TheregionalGHGinventoryincludesGHGemissionsduetotwodistinctwastesources.Thefirst,wastegeneration,isforwardlooking,asitaccountsfortheGHGemissionsthatwilloccurinthefutureduetowastethatiscreatedduringtheinventoryyear(2005)andsenttoalandfillduringtheinventoryyear(2005),butdecomposesinthelandfillovermanyfutureyears(2005andbeyond).Theactivityofgeneratingthewasteoccurscompletelyinsidethejurisdictionboundaryandduringtheinventoryyear(2005),buttheGHGemissionsmayoccuroutsidetheboundaryatadistantlandfill.Theseemissionsareclassifiedasindirectemissionsandincludedintheregionaltotal.

Thesecondwastesource,landfillsites,isbackwardlookingandaccountsfortheGHGemissionsthatoccuratspecificlandfillsiteslocatedintheboundaryandaretheresultofallthewastethathashistoricallybeendepositedatthatsiteandiscurrentlydecomposinginthelandfillduringtheinventoryyear.Theactivityofgeneratingthewasteoccurredinthepast,andoccurredinanyofthejurisdictionsthatsendwastetothespecificlandfillsite.Sitespecificlandfillemissionsareonlyreportedasaninformationaliteminthisdocumentbecauseiftheywereincludedinregionaltotals,therewouldbeadouble‐countingofemissionsfromthewastesectorduetocombiningofthebackward‐lookingandforward‐lookingemissionsthatwoulddistortthepresentationofanannual

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emissionsestimate.Itwasdecidedtoincludetheforward‐lookingemissionsfromwastegenerationastheyareemissionsassociatedwiththeinventoryyearactivityandtodisclosethebackward‐lookinglandfillemissionasaninformationalitemonlybecauseitisrelatedtoprioryearwastegenerationbeforetheinventoryyear.Thediscussionbelowrelatesonlytotheregion’swastegenerationduring2005.

GHGemissionsduetosolidwastegeneratedwithintheregionin2005were49,667MTCO2eandaccountforapproximately0.8%oftotalregionalemissions.GHGemissionsduetowastegeneratedintheregionarefugitiveemissionsofCH4thatoccuratthevariousreceivinglandfills,andareconsideredanindirectemission.Thematerialsdisposedofintheregionarerecycled,composted,placedinalandfill,orcombustedforenergyattheCovantaFacilityonFinkRoad.Theemissionscalculatedhereincludethosethatresultonlyfromthedecompositionofwasteplacedinalandfill.EnergythatisproducedbycombustingwasteattheCovantafacilityissoldtoPG&E.AssociatedGHGemissionsarecapturedintheBuildingEnergysectorandarelower(onaperkwhbasis)thanGHGemissionsassociatedwiththeburningoffossilfuelstoproduceequivalentamountsofelectricity.Tonsofwasteofeachtypegeneratedintheregionin2005areshowninTable2‐7.RegionalGHGemissionsthatresultfromthelandfillingofeachtypeofwasteareshowninFigure2‐7(CaliforniaDepartmentofResourcesRecyclingandRecovery2012aand2012b)6.

Table 2‐7. Waste Generation by Waste Type (Tons) 

WasteType TonnagebyWasteType(ShortTons)

Agricultural/YardWaste 85,201

FoodandBeverageContainers 29,971

OtherWaste 14,922

ConstructionandDemolitionWaste 82,805

OtherPlasticWaste 44,885

OtherGlassWaste 4,810

OrganicWaste 105,979

HazardousWaste 374

PaperProducts 177,784

OtherMetalWaste 13,507

Vehicle/EquipmentWaste 1,564

Total 561,801

Source:CaliforniaDepartmentofResourcesRecyclingandRecovery2012aand2012b

6AlldatarelatedtowastegenerationinthisdocumentwasobtainedthroughCalRecyclewhichtrackswastedataacrossthestate.Individuallocalwastehaulersmayhavemoredetailedandoftenmoreaccuratedataforwastegenerationamountsandprofilesforaspecificcommunity.Datacollectionfromallindividualwasteserviceproviderswasbeyondthescopeofthisregionaleffort.

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Figure 2‐7. Regional GHG Emissions by Waste Type (MT CO2e) 

Wastegeneratedintheregioniseitherdiverted(throughrecycling,composting,etc.)ortransportedtooneof16differentlandfillslocatedthroughoutthestate(CaliforniaDepartmentofResourcesRecyclingandRecovery2012a).Muchofthewastegeneratedinthecountyisexportedtolandfillsoutsidethecounty.AccordingtoCalRecycle,in2005,theregionexported50%‐75%ofthewastegeneratedtolandfillsoutsideofthecountyborder,dependingonthejurisdiction.Assuch,themajorityoftheseemissionswillnotoccurwithinthecounty,butthecountyisresponsibleforcreatingthiswasteduringtheinventoryyear.

In2005,thepercentageofwastedivertedfromlandfillsinthecountywasbetween48%‐61%,dependingonthejurisdiction(CaliforniaDepartmentofResourcesRecyclingandRecovery2012b).Thestateaveragein2005was52%.

Water ThemajorityofwaterdemandinStanislausCountyismetwithsuppliesfromlocalgroundwaterandsurfacewaterincludingtheTuolumneRiver.TheOakFlatWaterDistrict,servicingtheWestSideAreareceivesStateWaterProjectdeliveries.Table2‐8andFigure2‐8showsthetotalamountofwaterconsumedintheregionin2005byenduser.Table2‐9showsthevariouswatersourcesfortheregionandtheassociatedenergyofeach.

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Table 2‐8. Water Consumption by End User Sector in 2005 (Agriculture, Commercial/Industrial, Residential) 

EndUse WaterConsumption(Acre‐feet/year)

Residential 142,258

Commercial/Industrial 206,073

Agricultural 1,284,759

Total 1,633,089

Source:IndividualjurisdictionUrbanWaterManagementPlans,StanislausLocalAgencyFormationCommission2011,andUnitedStatesGeologicalSurvey2009

Figure 2‐8. Water Consumption by End User Sector in 2005 (Agriculture, Commercial/Industrial, Residential) 

Table 2‐9. Water Sources for the Region and Associated Energy Intensity (kwh/MG) 

WaterSource EnergyIntensity(kWh/MillionGallon)

GroundWater—SanJoaquinRiverBasin 896

SurfaceWater—StateWaterProjecttotheSanJoaquinValley 1,510

Source:CaliforniaAirPollutionControlOfficersAssociation2010

GHGemissionsassociatedwithwaterconsumptionareduetoelectricityuseforwatersupplyandconveyance(i.e.,energyusedtobringwatertotheregionfromotherareasorenergyconsumedtopumpwaterlocally),electricityuseforwatertreatment,andwaterdistribution(i.e.,energyusedtomovewaterwithintheregionfromtreatmentfacilitiestoendusers).Energyassociatedwith

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pumping,treatmentandlocaldistributionareaccountedforinthebuildingenergysector.OnlytheGHGemissionsrelatedtoconveyingwatertothecountyarereportedinthissection.

GHGemissionsrelatedtowaterconsumptionaccountedforapproximately0.5%oftheregion’stotalemissionsin2005.Theterm“waterconsumption”asusedinthissectionincludesthefollowingindirectemissionsbyactivity:Emissionsduetowaterconsumedbyresidential,commercial/industrial,andagriculturalendusersintheregionareincludedandwerecalculatedbasedoninformationinUrbanWaterManagementPlans(UWMP)inthecounty.

Wastewater GHGemissionsresultfromtwoactivitiesassociatedwiththetreatmentofcommercial/industrialanddomesticwastewater:1)energyconsumedtopowerthetreatmentfacilitiesand2)fugitiveemissionsofCH4andN2Othatoccurduringthechemicalandbiologicaldegradationofthewaste.Localgovernmentsoftenownandoperatewastewatertreatmentplants(WWTPs)andthustheGHGemissionsassociatedwithaspecificplant,regardlessofthepopulationitserves,arecapturedinajurisdiction’smunicipalGHGinventory.BecausesomejurisdictionsdonotownandoperateWWTPsandrelyonaplantoperatedbyaneighboringjurisdictionandbecausetheactivityofgeneratingwastewateroccurswithinthephysicalboundaryofthejurisdiction,theseGHGemissionsarealsocapturedinthecommunityinventorypresentedinthisreport

GHGemissionsduetothetreatmentofwastewatergeneratedbyresidents,businessesandfacilitiesintheregionaccountforapproximately0.3%oftotalregionalGHGemissionsin2005(Table2‐1andFigure2‐1).Themajorityoftheregion’sresidentsandbusinessesareservedby8WWTPslocatedwithintheboundaryofthisinventory.GHGemissionsthatresultfromelectricityand/ornaturalgasusedtopowerthefacilitiesareclassifiedasindirectemissionsandareincludedintheinventoryinthebuildingenergysector.FugitiveemissionsofCH4andN2Othatresultfromthetreatmentandbreakdownofwasteinthefacilityareclassifiedasdirectemissionsifoccurringataplantwithintheinventoryboundaryandindirectemissionsifthereceivingplantislocatedoutsideoftheinventoryboundary.GHGemissionsassociatedwiththetreatmentandbreakdownofwastecanvarybyalargeamountfromplanttoplant,dependingonthetechnologyinplaceattheplantandthepresenceorabsenceofanaerobicorfacultativelagoons,andnotnecessarilyontheamountofwastewatertreatedattheplantorthesizeofthepopulationitserves.Thus,WWTPsthatservesmallruralcommunitiesmayproducemoreemissionsthanlargeplantsservingmanytimesmorepeople.

ToestimateGHGemissionsduetowastewatergeneratedwithintheregion,percapitaGHGemissionsfactorsweredevelopedforeachWWTPusinginformationasreportedinthejurisdictions’municipalGHGinventories.PlantspecificfactorswerethenappliedtopopulationswithanadjustmentforcommercialandindustrialactivitypertheLGOP.FouroftheeightWWTPslocatedintheregioncaptureandflarethefugitiveemissions(biogas)onsite;theotherfourfacilitiesdonotcapturethebiogas.Emissionsfromflaredmethaneandmethaneusedasfuelarenotcountedtowardstotalemissionsastheyareconsideredtobeequivalenttothegasesproducedfromnaturaldecompositionprocesses.7

7ModestoMunicipalInventory

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Refrigerants/High GWP Gases Refrigerantsoftencontaingreenhousegases.DirectreleaseofthesecompoundsthroughleaksorduringmaintenanceoftheequipmentthatusethesecompoundsisadirectGHGemission.TotalemissionsfromrefrigerantsandotherhighGWPgaseswere364,473MTCO2eandaccountforapproximately6%oftotalregionalGHGemissionsin2005.Refrigerantemissionsalsoaccountforapproximately3%ofCalifornia’sstatewideGHGemissions(CaliforniaAirResourcesBoard2010b).

High‐GWPgasesareemittedfromresidentialandcommercial/industrialstationaryrefrigerationandair‐conditioningequipment.High‐GWPrefrigerantsincludechlorofluorocarbons(CFCs),HCFCs,andHFCs.ThesegasesareregulatedundertheMontrealProtocolandtheKyotoProtocol.Eachoftheserefrigerantshasaveryhighglobalwarmingpotential,rangingbetween500and10,000timesmorepotentthanCO2(CaliforniaAirResourcesBoard2009a).RefrigerantusesarecategorizedbyCARBaccordingly:

Largecommercialrefrigerationincludesrefrigeratedequipmentfoundinsupermarkets,largegrocerystores,andotherretailfoodestablishments.

Smallcommercialrefrigerationincludesstand‐alonedisplaycases,smallwalk‐incoldrooms,andothersmallrefrigerationequipmentusedprimarilyinconveniencestores,smallgrocerystores,pharmacies,andrestaurants.

LargecommercialACincludescentrifugalchillersandpackagedchillersusedforcomfortcoolinginnon‐residentialcommercialbuildings,whilesmallcommercialACincludesunitaryACsystemsusedforcommercialbuildingcomfortcooling.

ResidentialACandrefrigerationincludepackagedACunitsandrefrigerator‐freezersusedinhouseholds(CaliforniaAirResourcesBoard2009a).

RefrigerantemissionsfortheregionwerecalculatedusingstatewideemissionspublishedbyCARBandscaledtothelocallevelusinghouseholdpopulationandcommercial/industrialnaturalgasconsumptiondata.

 

 

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Chapter 3 Methods 

ThissectiondescribesdatasourcesandmethodsusedtoestimateGHGemissionsfromallsectorsfortheregion.

DoublecountingofGHGemissionswouldresultinemissionsfromaspecificsourcebeingattributedtomorethanonesector,whichwouldresultinanoverestimateoftotalGHGemissions.Carefulattentionwaspaidtothedevelopmentofeachsector’semissionsestimatestoensurethatdoublecountingofemissionsdidnotoccur.

Agriculture 

What the Sector Includes 

Thissectorincludesemissionsfromagriculturalactivitiesassociatedwiththecombustionoffossilfuelsinagriculturalequipment,fugitiveemissionsofmethaneandnitrousoxidefrommanuremanagement,fugitiveemissionsofmethanefromentericfermentation,fugitiveemissionsofnitrousoxidefromfertilizeruse,andpesticiderelatedGHGemissions.

Methodology 

Fuel Combustion Emissions from Agricultural Vehicles 

Agriculturalvehiclesincludetractors,pumps,smallfarmequipment,andothervehiclesusedforagriculturalpurposes.EmissionsfromagriculturalvehicleswerecalculatedusingCARB’sOFFROAD2007model.TheOFFROAD2007modelestimatesemissionsatthecountylevelformultipleequipmentandvehicletypes.

Emissions from Manure Management, Enteric Fermentation, and Fertilizer Use 

Toestimateemissionsintheseagriculturalsub‐sectors,populationsinvariouslivestockcategoriesandacresofagriculturallandtypeswithintheregionwereobtainedfromtheUSDAAgricultureCensusfor2005.Thisdataincludesthepopulationofmilkcows,beefcows,othercattle,hogsandpigs,poultry,sheep,lambs,andgoats,aswellasamountsandtypesoffertilizerapplicationforeachU.S.countyfor2002and2007(U.S.DepartmentofAgriculture2007).Alinearextrapolationwasusedtoestimate2005populationdataandfertilizeracreage.ManuremanagementandentericfermentationemissionswerecalculatedusinglivestockpopulationnumbersandstandardemissionsfactorsusedintheCaliforniastateGHGinventoryanddevelopedbyCARB(2010).

EmissionsresultingfromfertilizerusewerecalculatedusingthenumberofacrestreatedwithfertilizersfoundintheUSDA’sAgricultureCensusinconjunctionwithCARBequationsandprotocolsforestimatingdirectandindirectN2Oemissionsfromfertilizerapplication(U.S.DepartmentofAgriculture2007;CaliforniaAirResourcesBoard2011a).

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Pesticiderelatedemissionswereestimatedusingacresofeachcroptypeandthecorrespondingpesticidecarbonintensityfactors,andpesticideapplicationratesfromtheCaliforniaPesticideUseReport(PUR)dataset,collectedandmanagedbytheCaliforniaDepartmentofPesticideRegulation(PesticideActionNetwork2010)8.

Data Sources 

U.S.DepartmentofAgriculture(USDA).2007.http://www.agcensus.usda.gov/Publications/2007/Full_Report/Volume_1,_Chapter_2_County_Level/California/

CaliforniaAirResourcesBoard.2011a.CaliforniaGreenhouseGasInventoryData2000to2009andTechnicalSupportDocument.http://www.arb.ca.gov/cc/inventory/data/data.htm

PesticideActionNetwork.2010.Available:http://www.pesticideinfo.org/DCo.jsp?cok=50

Building Energy 

What the Sector Includes 

Buildingenergyemissionsincludebothdirectemissionsfromonsitenaturalgasconsumption(heatingandcooking)andindirectemissionsfromelectricityconsumption.Thissectorcapturesbothresidentialandcommercial/industrialbuildingsorfacilities.Indirectemissionsfromelectricityconsumptionoccurasaresultofcombustionoffossilfuelsatpowerplants,althoughtheactivityofusingelectricityoccurs(e.g.,lightingorairconditioning)withintheinventoryboundary.

Methodology 

Electricityandnaturalgasusagedata(aggregatedbyendusercategories)wascollectedfromtheutilitiesservingtheregion.Theseutilitiesinclude:MID,PG&E,andTID.GHGemissionsduetoelectricityusewerecalculatedbyapplyingutilityandyear‐specificCO2emissionfactors(MTCO2e/MWH)tothetotalelectricityconsumption.CO2electricityemissionfactorsforMIDandPG&EweretakenfromPublicUtilityProtocolReports9(theseutilitiespubliclyreporttheiremissionstotheCaliforniaClimateActionRegistry),whiletheCO2electricityemissionfactorforTIDwasprovidedbyTID.Weightedaveragesoftheemissionfactorswerecalculatedforcitiesthatreceiveelectricityfrommorethanoneutility.ElectricityemissionfactorsforCH4andN2OweretakenfromonE‐Grid(U.S.EnvironmentalProtectionAgency2010b)valuesforCaliforniaandareidenticalforallthreeutilities.TIDandMIDconfirmedthatnodirectaccesscustomersarepresentwithintheirserviceareas.ElectricityconsumptiondataasprovidedbyPG&Eaccountsfordirectaccesscustomerswithintheirservicearea.

NaturalgasisprovidedtothecountybyPG&E.Naturalgasconsumptionbyendusercategoryforthewholeregionin2005wasprovidedbyPG&E.GHGemissionsduetonaturalgasconsumptionwereestimatedbymultiplyingnaturalgasconsumption(therms)bythenaturalgasemission

8OriginalsourceforallpesticideusedatausedbyPANistheCaliforniaPesticideUseReport(PUR)dataset,collectedandmanagedbytheCaliforniaDepartmentofPesticideRegulation.9CaliforniaClimateActionRegistryPublicReports:<http://www.climateregistry.org/>

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3‐3 July 2013

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factorsforCO2,CH4,andN2OfromtheClimateRegistryGeneralReportingProtocolversion3.1(CaliforniaClimateActionRegistry2009).

Data Sources  Electricityconsumptionfortheregionbyendusercategoryand2005carbonintensityof

electricity(residential,commercial,industrial)for2005—TID

Electricityconsumptionfortheregionbyendusercategoryand2005carbonintensityofelectricity(residential,commercial,industrial)for2005—MID

Electricityandnaturalgasconsumptionfortheregionbyendusercategoryand2005carbonintensityofelectricity(residential,commercial,industrial)for2005—PG&E

CO2,CH4andN2Oemissionfactorsfornaturalgascombustion—CaliforniaClimateActionRegistryGeneralReportingProtocolv.3.1

Landfill Sites 

What the Sector Includes 

ThissectorincludesCH4emissionsfromsolidwastethatwasalreadyinplaceduringtheinventoryyear2005inlandfillsitesinthecounty.Thewastethatisinplaceintheselandfillsmayhavebeengeneratedbymanyjurisdictionsovermanyyearsandthemethanethatisphysicallyreleasedinagivenyearisthecombinationofdecomposingwastefrommanyyearsinthepast.Landfillemissionwerequantifiedfor2005butwereexcludedfromtheregionalGHGinventorybecausetheemissionsfromwastegenerationwereconsideredmoreappropriatetoincludeintheregionaltotalastheyaretiedtowastegeneratingactivitythatoccurredin2005versusthelandfillemissionswhicharetiedtoprioryearhistoricalwastegeneration.PertheLGOP,landfillemissions,forlandfillsownedandoperatedbyajurisdiction,shouldbeincludedinamunicipalinventoryastheyareundertheoperationalcontrolofthejurisdiction.Emissionsassociatedwiththethreelandfillslocatedintheunincorporatedcountyarea(Bonzi,FinkRoad,andGeerRoad)werenotcapturedinthemunicipalinventoriesandareincludedhereasaninformationalitemonly.

Methodology 

EmissionsresultingfromthedecompositionofwasteinplaceatregionallandfillsweremodeledusingCARB’slandfillemissionstool(CaliforniaAirResourcesBoard2011b).StaffreportsfromCECandCARBwereusedtodeterminetheyearinwhichthelandfillsopenedandthewasteinplaceatinterimyears(CaliforniaEnergyCommission2002;CaliforniaAirResourcesBoard2009b).CompostingfacilitiesinthecountywerenotanalyzedforGHGemissionsbecauseofthebiogenicnatureofcompostpileemissions(U.S.EnvironmentalProtectionAgency2010a).ThelandfillemissionstoolrequiresanannualwastedepositionaswellasdailycoverandclimateconditionsatthelandfilltogenerateannualCO2andCH4emissionsforeachyearthatwasteispresentinthelandfill.Anassumedlandfillgascapturerateof75%wasappliedtoCH4emissionsfrom2005ateachlandfill.CO2emissionsfromlandfillsareconsideredbiogenicandwerenotincludedinthisanalysis.

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐4 July 2013

ICF 00203.10

 

Data Sources  CECStaffReport500‐02‐041V1.September2002.LandfillGastoEnergyPotentialinCalifornia.

CARB.StationarySourceDivision.May2009.InitialStatementofReasonsfortheProposedRegulationtoReduceMethaneEmissionsfromMunicipalSolidWasteLandfills.

CARBFODLandfillEmissionsTool

Off‐Road Transportation 

What the Sector Includes 

Thissectorincludesemissionsduetotheburningoffuelbyalltypesofoff‐roadvehiclesandequipmentoperatinginthecountyincludingbutnotlimitedtoresidential(e.g.,lawnandgarden),commercial/industrial(e.g.,transportationrefrigerationunits,construction),oil,gasandminingequipment,pleasurecraftandrecreationalvehicles,andportablepumpsandgenerators.

Methodology 

Emissionsfromoff‐roadvehiclesinthecountywereestimatedusingCARB’sOFFROAD2007model(CaliforniaAirResourcesBoard2007).TheOFFROADmodelprovidestheannualactivitylevel(hoursofoperationperyearorgallonsoffuelconsumedperyear)andtypeoffuelconsumedforawidevarietyofoff‐roadvehicleandequipmentcategories.Outputsareprovidedatthecountylevel.ThefuelconsumedwassummedforeachequipmentandvehiclecategoryandmultipliedbycorrespondingfuelemissionfactorsfromtheCaliforniaClimateActionReserve(2009)GeneralReportingProtocolv3.1.TheCCARemissionfactorsrelatetheamountofCO2,CH4,andN2Oemittedpergallonofgasoline,diesel,orliquefiedpropaneconsumed.

Data Sources  CaliforniaClimateActionRegistryGeneralReportingProtocolv3.1.January2009

CARB’sOFFROAD2007model

Regionalsocioeconomicdata(TableES‐2)

On‐Road Transportation 

What the Sector Includes 

Thissectorincludesemissionsfromon‐roadtransportationintheregion.Emissionsfromthissectorareduetothecombustionoffossilfuels(suchasdieselandgasoline)usedtopowerallon‐roadvehicles(e.g.,lightandmediumdutyautos,mediumandheavydutytrucks,buses,andmotorcycles).

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐5 July 2013

ICF 00203.10

 

Methodology 

TrafficmodelingwasconductedfortheregionusingtheStanCOGTravelDemandModelfortheyear2005.Thissamemodel,andallunderlyingassumptionsandinputs,willalsobeusedforallSB375Planningintheregion.TheStanCOGmodelrunswereperformedbytrafficanalystsatFehrandPeers.

CO2emissionsfromon‐roadvehicleswereestimatedusingVMTdataasoutputbytheStanCOGTravelDemandModelandemissionfactors(gramsCO2/mile)byspeedbinfromtheCT‐EMFACmodel(CaliforniaDepartmentofTransportation2007).TheStanCOGtraveldemandmodelincludesmultiplevehicletriptypessuchashome‐basedwork,shoppingandrecreationaltrips,andnon‐homebasedtrips.Forthisanalysis,VMTwasestimatedfortheregionusingtheaccountingguidelinessetforthbytheSB375RegionalTargetsAdvisoryCommittee.VMTforthecountyisdefinedas:

1. AllCounty‐County(CC‐CC)trips:AlltripsthattravelfromonepartoftheCountytoanotherpartofthecountyarea.

2. One‐halfofCounty‐External(CC‐EC)trips:One‐halfofthetripswithanorigininthecountyandadestinationoutsideStanislausCounty.

3. One‐halfofExternal‐County(EC‐CC)trips:One‐halfofthetripswithanoriginoutsideStanislausCountyandadestinationinthecounty.

CH4andN2OemissionswerecalculatedusingtheVMTdataandemissionfactors(gramsCH4/mileorgramsN2O/mile)asprovidedbytheEMFAC2011model(CaliforniaAirResourcesBoard2011c).TheEMFAC2011modelwasalsousedtodeterminethevehiclecategoryprofileinStanislausCounty.Thevehiclecategorydistributionindicatesthevehicletypesinthecountysuchaslightdutyautos,lightdutytrucks,heavydutytrucksandbuses.TheproportionsofvehicletypesweremultipliedbytotalVMTandthenbythecorrespondingvehicletypeemissionfactorfromtheEPAtoestimateCH4andN2Oemissions.

Data Sources  StanCOGTDMoutputsfortheregion

*CTEMFACmodel

U.S.EnvironmentalProtectionAgency.InventoryofU.S.GreenhouseGasEmissionsandSinks:1990‐2005,EPA430‐R‐07‐002,Annex3.2,(April2007)

Refrigerants/ High GWP gases 

What the Sector Includes 

Refrigerantemissionsareproducedbyairconditioninguseandotherrefrigerantapplicationsincommercial/industrialandresidentialbuildings.

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐6 July 2013

ICF 00203.10

 

Methodology 

ICFusedatopdownapproachtoestimaterefrigerantemissions,usingstate‐leveldataprovidedbyCARB(CaliforniaEnergyCommission2006).Residentialrefrigerantemissionswereestimatedbyscalingstate‐levelresidentialrefrigerantemissionstotheregionbasedonthenumberofhouseholds.

Commercial/industrialrefrigerantemissionsweredeterminedbyscalingstatelevelcommercialrefrigerantusetotheregionbasedoncommercialnaturalgasconsumption.TheCEChasdeterminedacorrelationbetweenthecommercialnaturalgasuseandcommercialrefrigerantemissions(CaliforniaEnergyCommissionn.d.).

Data Sources  CaliforniaGHGEmissionInventory2000–2009(CaliforniaAirResourcesBoard2012)

Naturalgasconsumptionbyendusercategory(residential,commercial,industrial)for2005—PG&E

Regionalsocioeconomicdata(TableES‐2)

Stationary Sources 

What the Sector Includes 

Thissectorincludesemissionsfromstationarycombustionoffossilfuels(exceptnaturalgas,whichisincludedinthebuildingenergyusesector),andindustrialprocessemissions.

Methodology 

EmissionsresultingfromthecombustionoffuelsatstationarysourceswereestimatedusingfuelconsumptioninformationforpermittedsourcesprovidedbytheSJVAPCD(LelandVillalvazo,SJVAPCD,pers.comm.).DatafromtheSJVAPCDincludedalistoffueltypesandtheamountconsumedandcapturesthosesourcesemittinggreaterthan25,000MTCO2eperyearandarerequiredtoreportunderCalifornia’sMandatoryReportingRule.FuelconsumptionquantitiesweremultipliedbycorrespondingcarbonintensityfuelemissionfactorsfromtheClimateRegistrytoobtainGHGemissions.

Data Sources  CaliforniaClimateActionRegistryGeneralReportingProtocolv3.1(January2009)

SJVAPCD,personalcommunicationLelandVillalvazo

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐7 July 2013

ICF 00203.10

 

Waste Generation 

What the Sector Includes 

Thissectorincludesmethaneemissionsthatwillresultfromthedecompositionofwasteinlandfills,fromwastethatwasgeneratedbyintheregionin2005.Theseemissionsarealsoknownasthe“futuremethanecommitment”ofthewaste.CO2emissionsduetowastegeneratedin2005arenotconsideredinthisanalysisbecausetheyareconsideredbiogenicinorigin.

Methodology 

EmissionsfromwastegenerationwerecalculatedusingpubliclyavailabledatafromCalRecycleandemissionfactorsbasedonEPA’sWasteReductionModel(WARM).ICFalteredemissionfactorsfromWARMtodiscountemissionsfromwastecollectionvehicles,andrecyclingrelatedemissions,asthesearelifecyclesandshouldnotbeincludedinacommunityGHGinventory.WasteintheregioniscollectedbytheCityofModestoandSCRSWPAwhoisresponsibleforwastecollectioninthecitiesandunincorporatedareasinStanislausCountyexceptModesto.

A1999StanislausCountywasteprofilefromCalRecyclewasusedtoestimatethetotaltonsofeachtypeofwastegeneratedintheregionin2005(CaliforniaDepartmentofResourcesRecyclingandRecovery2012aand2012b).Totalwastetonnagein2009wasobtainedforModestoandSCRSWPA,alsofromCalRecycle.Foreachmaterialtypesuchasusedoil,paint,orlumber,themodifiedEPAWARMemissionfactorthatrelatingCO2eemissionspertonofwastewereapplied.Theamountofeachmaterialtypewasmultipliedbythematerial’scorrespondingemissionfactorstofindemissionsbymaterialtype,andtheemissionsfromallmaterialtypesweresummedtoestimatetotalemissions.

Data Sources  CaliforniaDepartmentofResourcesRecyclingandRecovery(CalRecycle)

U.S.EPA’sWasteReductionModel(WARM).

Wastewater Treatment 

What the sector includes 

Theseemissionsareassociatedwiththetreatmentofindustrial,residential,andcommercialwastewaterproducedbyeachparticipatingjurisdiction.TheseemissionsresultfromfugitiveemissionsofCH4andN2OthatoccurduringthechemicalandbiologicalbreakdownofwastewaterattheWWTP.

Methodology 

FugitiveandprocessemissionsthatresultfromthetreatmentofwastewaterwereestimatedusingeachoftheCounty’sjurisdiction’smunicipalGHGinventories.ThemunicipalinventorieswerepreparedpriortothisanalysisandquantifytheGHGemissionsresultingfrommunicipaloperations,

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐8 July 2013

ICF 00203.10

 

includingdirectandindirectemissionsfromindividualwastewatertreatmentplants.Forthisanalysis,ICFusedthefollowingdatafromthemunicipalinventories:WWTPservicepopulationandprocessemissions(directemissions).Inaddition,ICFmadeseveraladjustmentstoparametersinthemunicipalinventoriesincludingthefollowingchanges:emissionsresultingfromelectricityconsumptionattheWWTPswereomittedtoavoidoverlapwiththebuildingenergysector,methaneemissionsataerobicplantswereomittedusingLGOPguidance,N2Oprocessemissionswereaddedwherenecessary,andservicepopulationswerechangedusinganadjustmentfactor(fromLGOP)toincludepreviouslyunaccountedforindustrialwastewater.

PercapitavaluesforwastewateremissionsweredevelopedusingtheICF‐adjustedmunicipalinventorywastewateremissionsandtheWTTPservicepopulations.Todeterminewastewatertreatmentplantrelatedemissions,thepercapitavalueswereappliedtothepopulationthatresideswithinthecountyboundaryonly.

EmissionfromsepticsystemswereestimatedandaddedtoWWTPemissions.Theamountofpeopleusingsepticsystemswasestimatedusinginformationincommunities’GeneralPlans.ApercapitasepticsystememissionfactorfromtheLocalGovernmentsOperationsProtocolwasusedtodetermineCH4andN2Oemissionsresultingfromsepticsystemuse(LocalGovernmentsOperationsProtocol2010).

Data Sources  MunicipalGHGInventories—alljurisdictions(availableuponrequestfromtheindividualcities

inStanislausCounty)

CARB.May2010.LGOPforthequantificationandreportingofgreenhousegasemissionsinventories.V1.1.

Water 

What the sector includes 

Emissionsfromwaterconsumptionwereestimatedbasedontheenergyassociatedwiththedistributionofwatertojurisdictionsintheregion.

Methodology 

Emissionsfromtheconveyanceofwater(i.e.,thetransportofwatersuppliesfromoutsidetheinventoryboundarytowithintheboundary)werecalculatedusinginformationabouttotalwaterconsumptionandwatersourcesfromeachoftheCountyjurisdiction’sUWMPs.GHGemissionsassociatedwiththeenergyrequiredtotreatandlocallydistributewaterthatissuppliedfromotherareasarecapturedinthebuildingenergysector.TheUWMPsforsomejurisdictionswereunavailable,and,inthesecases,waterconsumptiondatawastakenfromMunicipalServiceReviews(MSR)conductedbytheLAFCO(StanislausLocalAgencyFormationCommission2011).Waterconsumptiondatafortheunincorporatedcountywasestimatedusing2005datafromtheUnitedStatesGeologicalSurvey(USGS)(2009).

Stanislaus County  Methods 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

3‐9 July 2013

ICF 00203.10

 

Insomeinstances,waterconsumptionwasnotavailableforthebaselineinventoryyear(2005).Inthesecases,waterconsumptionwasscaledfromanalternativeyeartothebaselineyearusingpopulation.Thismethodassumesthatwaterconsumptionchangesproportionallywithpopulation.Inothercases,waterconsumptionbyenduse(residential,commercial,etc.)wasnotavailable.Itwasassumedthatjurisdictionswhereconsumptionbyendusewasunavailablehaveaverageproportionsofenduseconsumptionascitieswithsimilarpopulationsizes.Alternately,enduseconsumptionwasdeterminedusingtheproportionsofcommercial/industrialandresidentialacresforjurisdictionswithavailableacreagedata.

Waterconsumptiondatafromthesourcesofwaterinthecounty,groundwater,surfacewater,andrecycledwater,weretakenfromtheUWMPs,MSRs,andUSGS.TheelectricityrequiredtoconveywaterfromeachsourcewasestimatedusingelectricityintensityfactorsfromCAPCOA(CAPCOA2010).ElectricityconsumptionrequiredforwaterconveyancetoeachjurisdictionwasmultipliedbycarbonintensityfactorsfromtheassociatedutilitiestoarriveatGHGemissionsresultingfromwaterconveyance.

Data Sources  CAPCOA2010

MunicipalServiceReviewsfromtheLAFCO

UWMPsfromthejurisdictionsthathaveapubliclyavailableUWMP

USGSWaterStudy

 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

4‐1 July 2013

ICF 00203.10

 

Chapter 4 References 

Printed References CaliforniaAirPollutionControlOfficersAssociation(CAPCOA).2008.CEQA&ClimateChange:

EvaluatingandAddressingGreenhouseGasEmissionsfromProjectsSubjecttotheCaliforniaEnvironmentalQualityAct.January.Available:http://www.capcoa.org/wp‐content/uploads/2012/03/CAPCOA‐White‐Paper.pdf.Accessed:June6,2013.

CaliforniaAirPollutionControlOfficersAssociation(CAPCOA).2010.QuantifyingGreenhouseGasMitigationMeasures:AResourceforLocalGovernmenttoAssessEmissionReductionsfromGreenhouseGasMitigationMeasures.August.Available:http://www.capcoa.org/wp‐content/uploads/2010/11/CAPCOA‐Quantification‐Report‐9‐14‐Final.pdf.Accessed:October9,2010.

CaliforniaAirResourcesBoard.2009a.CaliforniaAirResourcesBoard.2009.CaliforniaFacilitiesandGreenhouseGasEmissionsInventory—High‐GlobalWarmingPotentialStationarySourceRefrigerantManagementProgram.Available:http://www.arb.ca.gov/regact/2009/gwprmp09/refappb.pdf

CaliforniaAirResourcesBoard.2009b.StaffReport:InitialStatementofReasonsfortheProposedRegulationtoReduceMethaneEmissionsfromMunicipalSolidWasteLandfills.May2009.Available:http://www.arb.ca.gov/regact/2009/landfills09/isor.pdf.

CaliforniaAirResourcesBoard2010a.LocalGovernmentOperationsProtocol:Forthequantificationandreportingofgreenhousegasemissionsinventories.Available:http://www.arb.ca.gov/cc/protocols/localgov/pubs/lgo_protocol_v1_1_2010‐05‐03.pdf.

CaliforniaAirResourcesBoard2010b.CaliforniaGreenhouseGasInventoryfor2000‐2009—bySectorandActivity. Available:http://www.arb.ca.gov/cc/inventory/data/tables/ghg_inventory_sector_00‐09_sum_2011‐10‐26.pdf

CaliforniaAirResourcesBoard.2011a.CaliforniaGreenhouseGasInventoryData2000to2009andTechnicalSupportDocument.October26,2011.Available:http://www.arb.ca.gov/cc/inventory/data/tables/ghg_inventory_scopingplan_00‐09_2011‐10‐26.pdf

CaliforniaAirResourcesBoard.2011b.LandfillEmissionsToolVersion1.3.Available:http://www.arb.ca.gov/cc/protocols/localgov/localgov.htm

CaliforniaAirResourcesBoard.2011c.EMFAC2011EMFACEmissionsRateDatabase.AccessedJanuary16,2012.Available:http://www.arb.ca.gov/jpub/webapp//EMFAC2011WebApp/rateSelectionPage_1.jsp

CaliforniaAirResourcesBoard.2012.CaliforniaGHGEmissionInventory2000–2009.

Stanislaus County  References 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

4‐2 July 2013

ICF 00203.10

 

CaliforniaClimateActionRegistry.2009.GeneralReportingProtocolforthereportingofentitywidegreenhousegasemissions.Version3.1.January2009.Available:http://www.climateregistry.org/resources/docs/protocols/grp/GRP_3.1_January2009.pdf

CaliforniaDepartmentofResourcesRecyclingandRecovery(CalRecycle).2012a.SolidWasteInformationSystem(SWIS)Facility/SiteListing.Available:http://www.calrecycle.ca.gov/SWFacilities/Directory/SearchList/List?COUNTY=Stanislaus

CaliforniaDepartmentofResourcesRecyclingandRecovery(CalRecycle).2012b.Single‐YearCountywideOriginDetail.Available:http://www.calrecycle.ca.gov/LGCentral/Reports/Viewer.aspx?P=ReportName%3deDRSCountyWideOrigin%26CountyID%3d50%26ReportYear%3d2005

CaliforniaDepartmentofTransportation.2007.CT‐EMFACmodel.Version4.1.AccessedJanuary16,2012.Available:http://www.dot.ca.gov/hq/env/air/pages/ctemfac_license.htm

CaliforniaEnergyCommission(CEC).n.d.CaliforniaEnergyConsumptionDatabase.AccessedDecember6,2011.Available:http://ecdms.energy.ca.gov/

CaliforniaEnergyCommission(CEC).2002.LandfillGastoEnergyPotentialinCalifornia.AccessedJanuary18,2012.Available:http://www.energy.ca.gov/reports/2002‐09‐09_500‐02‐041V1.PDF

CaliforniaEnergyCommission(CEC).2006.CaliforniaCommercialEnd‐UseSurvey.CEC‐400‐2006‐005.PreparedfortheCaliforniaenergyCommissionbyi‐Tron.March2006.Availableat:<http://www.energy.ca.gov/2006publications/CEC‐400‐2006‐005/CEC‐400‐2006‐005.PDF>.

CityofModestoandModestoIrrigationDistrict.2010.Joint2010UrbanWaterManagementPlan.AccessedJune6,2013.Available:http://www.modestogov.com/uppd/reports/water/masterplans/uwmp2010/Joint%20Urban%20Water%20Management%20Plan%202010%20Final%20Report.pdf>

Fehr&Peers.2012.StanislausCountyBaselineVehicleMilesofTravelEstimates.PreparedforICF.February17.

IntergovernmentalPanelonClimateChange.1996.1995:ScienceofClimateChange.(SecondAssessmentReport).Cambridge,U.K.:CambridgeUniversityPress.

IntergovernmentalPanelonClimateChange(IPCC).2006.2006IPCCGuidelinesforNationalGreenhouseGasInventoriesVolume4:Agriculture,ForestryandOtherLandUse.AccessedJanuary18,2012.Available:http://www.ipcc‐nggip.iges.or.jp/public/2006gl/vol4.html

IntergovernmentalPanelonClimateChange(IPCC).2007.ClimateChange2007:SynthesisReport,ContributionofWorkingGroupsI,IIandIIItotheFourthAssessmentReportoftheIntergovernmentalPanelonClimateChange[CoreWritingTeam,Pachauri,R.KandReisinger,A.(eds.)],IPCC,Geneva,Switzerland.

LocalGovernmentOperationsProtocol.2010.FortheQuantificationandReportingofGreenhouseGasEmissionsInventories.AccessedJanuary18,2012.Available:http://www.arb.ca.gov/cc/protocols/localgov/pubs/lgo_protocol_v1_1_2010‐05‐03.pdf

PesticideActionNetwork.2010.Available:http://www.pesticideinfo.org/DCo.jsp?cok=50

Stanislaus County  References 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

4‐3 July 2013

ICF 00203.10

 

SanJoaquinCounty.2011.SanJoaquinCountyGeneralPlanUpdate,Appendix5B—GreenhouseGasEmissionsInventory:SourcesandMethodology.Availableat:http://www.sjcgpu.com/pdf/backgroundreport/prd_br_a5b.pdf.

StanislausCouncilofGovernments(StanCOG).2005.StanCOGTravelDemandModel.2005ModelandSocioeconomicdatatherein.Documentationavailableat:http://www.stancog.org/trans‐model.shtm.

StanislausLocalAgencyFormationCommission(LAFCO).2011.MunicipalServiceReviews.AccessedDecember14,2011.Available:http://www.stanislauslafco.org/info/msr.htm.

TulareCounty.2011.TulareCountyGeneralPlan2030.AppendixE.GreenhouseGasEmissionsInventory.Availableat:http://generalplan.co.tulare.ca.us/documents/GeneralPlan2010/Appendix%20E%20‐%20Greenhouse%20Gas%20Inventory.pdf.

U.S.DepartmentofAgriculture(USDA).2007.Available:http://www.agcensus.usda.gov/Publications/2007/Full_Report/Volume_1,_Chapter_2_County_Level/California/

U.S.EnvironmentalProtectionAgency.2007.InventoryofU.S.GreenhouseGasEmissionsandSinks:1990‐2005,EPA430‐R‐07‐002,Annex3.2.

U.S.EnvironmentalProtectionAgency.2010a.CompostingChapter.AccessedJanuary20,2012.Available:http://www.epa.gov/climatechange/wycd/waste/downloads/composting‐chapter10‐28‐10.pdf

U.S.EnvironmentalProtectionAgency.2010b.Emissions&GenerationResourceIntegratedDatabase(eGRID2010).Availableat:<http://www.epa.gov/cleanenergy/energy‐resources/egrid/index.html>.

U.S.EnvironmentalProtectionAgency.2012.InventoryofU.S.GreenhouseGasEmissionsandSinks:1990‐2010.ReleasedApril15,2012.Washington,D.C.Availableat:http://www.epa.gov/climatechange/Downloads/ghgemissions/US‐GHG‐Inventory‐2012‐Main‐Text.pdf

UnitedStatesGeologicalSurvey2009.EstimatedUseofWaterintheUnitedStatesCounty‐LevelDatafor2005.Available:http://water.usgs.gov/watuse/data/2005/.AccessedJanuary18,2012.

UnitedNationsFrameworkConventiononClimateChange(UNFCCC)2006.ReviewoftheImplementationofCommitmentsandofOtherProvisionsoftheConvention.March.Page7.Available:http://unfccc.int/resource/docs/cop8/08.pdfAccessed:January10,2012.

UnitedStatesGeologicalSurvey2009.EstimatedUseofWaterintheUnitedStatesCounty‐LevelDatafor2005.Available:http://water.usgs.gov/watuse/data/2005/.AccessedJanuary18,2012.

USDACensusofAgriculture.2007.Available:http://www.agcensus.usda.gov/Publications/2007/Online_Highlights/County_Profiles/California/.AccessedApril19,2012.

Stanislaus County  References 

 

Stanislaus Countywide Regional Community Greenhouse Gas Inventory 

4‐4 July 2013

ICF 00203.10

 

YoloCounty.2010.YoloCountyDraftClimateActionPlan.Availableat:http://www.yolocounty.org/Modules/ShowDocument.aspx?documentid=18005.

Personal Communications Villalvazo,Leland.SupervisingAirQualitySpecialist.SanJoaquinValleyAirPollutionControl

District.February2012—emailwithLindseyMcAlpineofICFInternationalregardingamountoffuelburntatpermittedstationarysourcesineachjurisdiction.