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Draft Landfill Methane Control Draft Landfill Methane Control MeasureMeasure

California Air Resources BoardCalifornia Air Resources BoardApril 22, 2008April 22, 2008

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Presentation OverviewPresentation OverviewBackgroundBackgroundARB Proposed Control MeasureARB Proposed Control MeasureKey Issues for Upcoming Key Issues for Upcoming Stakeholder MeetingStakeholder MeetingNext StepsNext StepsQuestionsQuestions

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BackgroundBackgroundEmissionsEmissions

Landfills represent 1 to 2 percent of Landfills represent 1 to 2 percent of statewide GHG emissionsstatewide GHG emissions

1990: 6.26 MMTCO2E2006: 5.80 MMTCO2E 2020: 7.64 MMTCO2E (forecast)

60 uncontrolled landfills with 400,000 tons WIP or more by 2020Estimated emission reduction in 2020: 0.88 MMTCO2E

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BackgroundBackground

Existing RegulationsExisting RegulationsLocal Air Districts Implement Federal Local Air Districts Implement Federal RegulationsRegulations

Primary focusPrimary focus:: Larger MSW landfills with a design capacity Larger MSW landfills with a design capacity

of 2.75 million tons or greater; andof 2.75 million tons or greater; and Hydrocarbon emission rate off 55 tons/year Hydrocarbon emission rate off 55 tons/year

or greateror greater

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BackgroundBackground

ARB Proposed Control MeasureARB Proposed Control MeasureDiscrete early action under AB 32Discrete early action under AB 32Enhanced control of methane Enhanced control of methane emissionsemissionsRequire new collection systems at Require new collection systems at uncontrolled landfillsuncontrolled landfillsImprove capture efficiencies at Improve capture efficiencies at existing landfillsexisting landfills

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ARB Proposed Control MeasureARB Proposed Control Measure

Initial draft regulatory languageInitial draft regulatory languagePublic Workshop – March 24, 2008Public Workshop – March 24, 2008

Looking for feedback from Looking for feedback from stakeholdersstakeholders

Lower surface emission standardLower surface emission standardLandfill threshold cut-offLandfill threshold cut-offIncreased monitoring frequenciesIncreased monitoring frequencies

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ARB Proposed Control MeasureARB Proposed Control Measure

Scope of the MeasureScope of the MeasureAffects all MSW landfillsAffects all MSW landfills≥≥400,000 tons of WIP400,000 tons of WIP

Install a gas collection and control system, Install a gas collection and control system, unless exemption requirements are metunless exemption requirements are metComply with statewide standardsComply with statewide standards

<400,000 tons of WIP<400,000 tons of WIPMust comply with specified reporting Must comply with specified reporting requirementsrequirements

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ARB Proposed Control MeasureARB Proposed Control Measure

Limited ExemptionsLimited ExemptionsExemptions allowed if owner or Exemptions allowed if owner or operator:operator:

Complies with surface methane Complies with surface methane emission limit (200 ppm);emission limit (200 ppm);Has a landfill gas heat input capacity of Has a landfill gas heat input capacity of <2.5MMBtu/hr; <2.5MMBtu/hr; andandMeets specified reporting requirementsMeets specified reporting requirements

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ARB Proposed Control MeasureARB Proposed Control Measure

Proposed RequirementsProposed RequirementsPrepare a Design Plan subject to approval Prepare a Design Plan subject to approval (12 months)(12 months)Flexible control options including enclosed Flexible control options including enclosed flares and landfill gas-to-energy facilitiesflares and landfill gas-to-energy facilitiesOpen flares are not allowedOpen flares are not allowedInstall and operate the gas collection and Install and operate the gas collection and control system within 18-months of Design control system within 18-months of Design Plan approvalPlan approval

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ARB Proposed Control MeasureARB Proposed Control Measure

Proposed Requirements (cont.)Proposed Requirements (cont.)Performance Based StandardsPerformance Based Standards

200 ppm instantaneous surface 200 ppm instantaneous surface methane emission limitmethane emission limit200 ppm component leak limit200 ppm component leak limitHigher emission control device Higher emission control device efficienciesefficiencies

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ARB Proposed Control MeasureARB Proposed Control Measure

Monitoring RequirementsMonitoring RequirementsMonthly surface emission measurements Monthly surface emission measurements reduced to quarterly (if in compliance) for reduced to quarterly (if in compliance) for active landfillsactive landfillsMonthly surface emission measurements Monthly surface emission measurements reduced to quarterly or annual (if in reduced to quarterly or annual (if in compliance) for inactive or closed landfills compliance) for inactive or closed landfills More stringent landfill surface walking grid More stringent landfill surface walking grid patternpattern

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Key Issues for Upcoming Key Issues for Upcoming Stakeholder MeetingStakeholder Meeting

Surface Monitoring RequirementsSurface Monitoring RequirementsSurface Methane Emission LimitSurface Methane Emission LimitRecordkeeping and Reporting Recordkeeping and Reporting RequirementsRequirementsEnforcement AgencyEnforcement Agency

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Next StepsNext StepsContinue to work with stakeholdersContinue to work with stakeholdersLandfill Technical Review Workgroup Landfill Technical Review Workgroup meetingsmeetingsLate September 2008 – Staff Report available Late September 2008 – Staff Report available for a 45-day formal public review and for a 45-day formal public review and comment periodcomment periodNovember 2008 – Air Resources Board November 2008 – Air Resources Board hearing to consider control measure adoptionhearing to consider control measure adoptionFall 2009 – Anticipated effective date of the Fall 2009 – Anticipated effective date of the control measurecontrol measure

ContactsRichard Boyd, ManagerAir Resources Boardrboyd@arb.ca.gov(916) 327-8285

Renaldo Crooks, Staff LeadAir Resources Boardrcrooks@arb.ca.gov(916) 327-5618

Scott Walker, Branch ManagerCalifornia Integrated Waste Management Boardswalker@ciwmb.ca.gov(916) 341-6319

Stephanie Young, P.E.California Integrated Waste Management Boardsyoung@ciwmb.ca.gov(916) 341-6357

Landfill Methane Control Measure Website:http://www.arb.ca.gov/cc/landfills/landfills.htm

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Questions about the Draft Questions about the Draft Landfill Methane Control Landfill Methane Control

Measure?Measure?