COMPLIANCE INFO_JTD APPENDIX A -L 2024

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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2010-0016 -3- SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS NORTH COUNTY LANDFILL SAN JOAQUIN COUNTY Alternative Management Standards for Treated Wood Waste is attached to this Information Sheet for reference. Financial Assurances Provision G.9 requires that, by 30 April 2010, the Discharger submit an updated preliminary closure and postclosure maintenance plan (PCPMP) for the Executive Officer’s approval. The PCPMP is required to be updated to reflect current operations and WDR requirements, including vertical expansion plans and cost estimates for closure, postclosure maintenance, and corrective action. Provision G.10 requires that the Discharger maintain financial assurance (F/A) balances with the CIWMB in at least the amount of these cost estimates, while Provision G.11 requires that, by 30 November 2010 and every five years thereafter, the Discharger demonstrate to the Executive Officer that F/As in acceptable amounts and mechanism(s) under Title 27 have been provided to the CWIMB. A copy of the letter of acceptance of the annual F/A demonstration to the CIWMB is also required under the MRP. Monitoring The monitoring and reporting program (MRP) in the WDRs requires regular facility maintenance inspections and semiannual monitoring of leachate, the unsaturated zone, and groundwater for representative monitoring parameters. Monitoring every five years is required for a longer list of landfill constituents of concern. The MRP also requires that the Discharger perform semiannual surface water monitoring at the site and maintain coverage under the General Industrial Storm Water Permit. The MRP requires that the Discharger update concentration limits as background data is collected under the MRP. For inorganic COCs (i.e., dissolved metals) for which concentration limits have not yet been developed, the MRP specifies that background monitoring be conducted annually until a sufficient amount of data has been collected for determination of concentration limits. Thereafter, such monitoring may be reduced to every five years. WDR Provision G.12 requires that the Discharger submit an updated WQPS report for the Executive Officer’s approval by 31 July 2012. Drainage The site receives an average of 16.5 inches per year of precipitation. Surface drainage at the site is to South Paddy Creek, tributary to Paddy Creek, Bear Creek, and the San Joaquin River. (JDM)