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Notes Regarding Funding. Requirements and. Financial Assurances for Closure, Post-Closure Maintenance,.and. Corrective Action San.Joaquin.County-Owned Landfills All Sites General Calculation of present-day estimated cost is based on the initial estimated cost and the inflation factors of years since the initial estimate(Tables 3).. Title 27,Section 20380(b).-Known.or Reasonably Foreseeable Release Title 27,Section 22222 - Corrective.Action Funding Requirements Potential corrective action costs (Table 1)due to a"reasonably foreseeable release"were initially .calculated in the Title 23, Chapter 15, Article.S,Financial Assurance Report(San Joaquin County,December 1991). These costs were based on the assumption that the method of cleanup would be to pump and treat the contaminated water using extraction wells and a treatment system above ground surface. Corrective action costs have been updated to reflect annual inflation factors (Table 2). The County's self insurance plan will cover these corrective action measure costs. At Foothill Landfill,additional or alternate corrective action measures,such as landfillgas extraction,would be funded through Certificates of Participation,issued in 2003. At the North County Landfill,additional or alternate corrective action measures,such as soil gas extraction,would be funded through Certificates of Participation,issued in 2003.. Foothill Sanitary Landfill Title 27,Section 22207- Closure Funding Requirements Initial closure cost estimates are presented in the Foothill Sanitary Landfill, Preliminary Closure and Postclosure Maintenance Plan (San Joaquin County,January 1994). Cost estimates were calculated using the Certification Guidelines for Initial Cost Estimates and Alternative Financial Mechanisms for Solid Waste Landfills(CIWMB,August 1988). Closure cost estimates(Table 1) are based on the closure of Module"I" and 20 acres of Module 1 (approximately 100 acres total). Revision of the closure cost estimate is anticipated for 2005. Funding Requirements Notes 1 San Joaquin County Revised:5/25/04 Solid Waste Division