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C�i7.Yi3�Y�� <br />PURPOSE..........................................................................................................................................:............ <br />1 <br />BACKGROUND...............................................................................................................................................1 <br />1 <br />FINAL POSTCLOSURE MAINTENANCE PLAN <br />1.0 <br />RESPONSIBILITY OF POSTCLOSURE MAINTENANCE................................................................ <br />2 <br />2.0 <br />CURRENT MONITORING AND CONTROL SYSTEMS....................................................................2 <br />2.1 LEACHATE............................................................................................................................2 <br />2.2 GROUND WATER.................................................................................................................2 <br />2.3 LANDFILL GAS.....................................................................................................................2 <br />2.3.A Landfill Gas Migration Monitoring..........................................................................................2 <br />2.3.B LANDFILL GAS COLLECTION............................................................................................. <br />3 <br />3.0 <br />SUMMARY OF REPORTING REQUIREMENTS............................................................................... <br />3 <br />3.1 LEACHATE............................................................................................................................3 <br />3.2 GROUNDWATER..................................................................................................................3 <br />3.3 LANDFILL GAS.....................................................................................................................4 <br />3.3.A Landfill Gas Migration Monitoring..........................................................................................4 <br />3.3.B Landfill Gas Collection...........................................................................................................4 <br />4.0 <br />POSTCLOSURE LAND USE.............................................................................................................4 <br />5.0 <br />MONITORING AND MAINTENANCE................................................................................................4 <br />5.1 FINAL COVER.......................................................................................................................4 <br />5.1.A Final Cover Over Shell Oil Pipeline....................................................................................... <br />4 <br />5.2 DRAINAGE............................................................................................................................5 <br />5.3 VEGETATIVE COVER.......................................................................................................... <br />5 <br />5.4 LEACHATE............................................................................................................................5 <br />5.5 LANDFILL GAS..................................................................................................................... <br />5 <br />5.5.A Landfill Gas Monitoring..........................................................................................................5 <br />5.5.B Landfill Gas Collection...........................................................................................................5 <br />5.6 GROUNDWATER..................................................................................................................5 <br />5.7 FINAL GRADING...................................................................................................................6 <br />5.8 VADOSE ZONE....................................................................................................................6 <br />6.0 <br />EMERGENCY RESPONSE PLAN.....................................................................................................6 <br />11 <br />FINAL POSTCLOSURE MAINTENANCE COSTS <br />1.0 <br />REVEGETATION................................................................................................................................7 <br />2.0 <br />LEACHATE MANAGEMENT..............................................................................................................7 <br />3.0 <br />LANDFILL GAS MANAGEMENT....................................................................................................... <br />7 <br />3.1 landfill gas monitoring/system Maintenance..........................................................................7 <br />3.2 landfill gas collection..............................................................................................................7 <br />4.0 <br />GROUNDWATER MONITORING...................................................................................................... <br />7 <br />5.0 <br />VADOSE ZONE MONITORING......................................................................................................... <br />7 <br />6.0 <br />FINAL COVER MAINTENANCE........................................................................................................8 <br />7.0 <br />DRAINAGE SYSTEM MAINTENANCE..............................................................................................8 <br />8.0 <br />INSPECTIONS................................................................................................................................... <br />8 <br />9.0 <br />TOPOGRAPHIC MONITORING.........................................................................................................8 <br />10.0 <br />POSTCLOSURE COST SUMMARY..................................................................................................8 <br />III <br />FINANCIAL RESPONSIBILITY <br />1.0 <br />FINANCIAL ASSURANCE NEEDS.................................................................................................. <br />10 <br />2.0 <br />PROPOSED FINANCIAL ASSURANCE MECHANISM................................................................... <br />10 <br />Post Closure Maintenance Plan Addendum San Joaquin County <br />Corral Hollow Sanitary Landfill Department of Public Works <br />April 2, 2008 Solid Waste Division <br />