1. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager 1 WATER BOARD FINANCIAL ASSURANCE FOR KRFR

2. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager2 Water Boards’ Directive! Title 27, §20380(b) Known or Reasonably Foreseeable Release — In accordance with applicable requirements of §§22220-22222, waste discharge requirements (WDRs) for a Unit subject to this section shall contain a provision which requires the discharger to obtain and maintain assurances of financial responsibility for initiating and completing corrective action for all known or reasonably foreseeable releases from the Unit. Title 27, §20380(b) Known or Reasonably Foreseeable Release — In accordance with applicable requirements of §§22220-22222, waste discharge requirements (WDRs) for a Unit subject to this section shall contain a provision which requires the discharger to obtain and maintain assurances of financial responsibility for initiating and completing corrective action for all known or reasonably foreseeable releases from the Unit.

3. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager3 Suggested WDR Language The Discharger shall obtain and maintain Financial Assurance Instruments (Instruments), which comply with CCR Title 27 (Sections 22207 [Closure Fund], 22212 [Post-Closure Fund], and 22220 et seq. [Corrective Action Fund]) and 40 CFR parts 257 and 258. The Discharger shall evaluate the cost of Financial Assurance to cover the estimated costs of the worse case known (if appropriate) or reasonably foreseeable release. The Discharger shall submit a report on financial assurance for corrective action for the Regional Water Board Executive Officer’s review and approval. Every five years after submittal of the initial financial assurance report, or earlier if requested by the Executive Officer, the Discharger shall submit a report that either validates the Instruments’ ongoing viability or proposes and substantiates any needed changes. The Discharger may combine the three components (Closure, Post Closure, Corrective Action) of the Instruments into one report to comply with this requirement. The Discharger shall also submit evidence (e.g., an acceptance letter from the California Integrated Waste Management Board—Financial Assurance Division ) to the Regional Board’s Executive Officer that a financial assurance instrument(s) is in place for closure, post-closure, and corrective action within 120 days of adoption of these WDRs. The most recent acceptance letter shall also be included in the Landfill’s Annual Report to the Executive Officer.

4. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager4 What is Reasonably Foreseeable? Solid Waste Assessment Test (SWAT) from mid 1980s to early 1990s Solid Waste Assessment Test (SWAT) from mid 1980s to early 1990s At Least 70% of Top 5 Ranks Leaking (20+ Ranks) – New Liner Requirements At Least 70% of Top 5 Ranks Leaking (20+ Ranks) – New Liner Requirements Central Landfill (Sonoma) + Rumors of Another Central Landfill (Sonoma) + Rumors of Another Exceptions?? Exceptions?? Non-Leaking, Old (25+) LF Non-Leaking, Old (25+) LF Reactivate? Reactivate? Climate Change? Climate Change? Poses a Threat to the Environment? Poses a Threat to the Environment? Fully Subtitle D with Add-Ons (Later) Fully Subtitle D with Add-Ons (Later)

5. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager5 Available Technical Paper Reasonably Foreseeable Water Quality Risks From Lined Landfills - Leachate And Landfill Gas Releases (Richgels, 2006) Reasonably Foreseeable Water Quality Risks From Lined Landfills - Leachate And Landfill Gas Releases (Richgels, 2006) Money Spent Up-Front on KRFR Analysis = Long Term Savings Money Spent Up-Front on KRFR Analysis = Long Term Savings

6. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager6 What Should be Included in KRFR Corrective Action Cost Estimate Investigation and Confirmation Investigation and Confirmation Additional Wells/Borings Additional Wells/Borings Additional Sampling Additional Sampling Additional Reporting Additional Reporting Remedial Action Plan/Feasibility Study Remedial Action Plan/Feasibility Study Capital Costs for Remediation Equipment Capital Costs for Remediation Equipment Operations and Maintenance Operations and Maintenance Estimated Permit Costs, including Staff Time Estimated Permit Costs, including Staff Time

7. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager7 Factors that Reduce Potential for a Release Landfill Gas Monitoring and Collection (esp. within the Waste Mass [Targets] or LCRS) Landfill Gas Monitoring and Collection (esp. within the Waste Mass [Targets] or LCRS) Double or “One-and-a-Half” Composite Liner Double or “One-and-a-Half” Composite Liner Low Leachate/Gas Generation LFs Low Leachate/Gas Generation LFs Alternative Covers?? Alternative Covers?? Aged Landfill with Sub D Aged Landfill with Sub D Bioreactor Landfill? Bioreactor Landfill? INTENSIVE CQA!! INTENSIVE CQA!!

8. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager8 Known Releases Operations and Maintenance Operations and Maintenance Estimated Time for Cleanup Estimated Time for Cleanup Is the FA included in Postclosure Maintenance Estimate? Is the FA included in Postclosure Maintenance Estimate? Make Separate Line Item in Plan Make Separate Line Item in Plan FA Funding should be Clear FA Funding should be Clear

9. LEA Conference, Autumn 2007 Joseph Mello, Land Disposal Program Manager9 Now You Have a Friend in the LF Regulatory Business… jmello@waterboards.ca.gov 916-341-5622