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I FINAL POSTCLOSURE MAINTENANCE PLAN <br /> 1.0 RESPONSIBILITY OF POSTCLOSURE MAINTENANCE <br /> San Joaquin Count Public Works Department, Solid Waste Division is responsible for <br /> q Y <br /> the postclosure maintenance of the extended cap and the entire Corral Hollow Sanitary <br /> Landfill (CHSL). Solid Waste Division staff will answer any questions pertaining to <br /> postclosure maintenance of the landfill. Reports of postclosure maintenance can be <br /> obtained at: <br /> San Joaquin County Public Works Department <br /> Solid Waste Division <br /> 1810 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209) 468-3066 <br /> 2.0 CURRENT MONITORING AND CONTROL SYSTEMS <br /> 2.1 LEACHATE <br /> CHSL and the closure cap extension area are unlined; therefore, leachate will not <br /> be collected and there are no costs associated with leachate control. <br /> 2.2 GROUNDWATER <br /> Nine groundwater monitoring wells will be maintained during the postclosure <br /> period (Figure 2). Ground water monitoring procedures identified in the initial <br /> postclosure monitoring plan will be applied to all wells. <br /> 2.3 LANDFILL GAS <br /> 2.3.A Landfill Gas Migration Monitoring <br /> Nine LFG migration monitoring wells will be maintained during the <br /> postcolsure maintenance period, including two wells planned for installation <br /> in 2013 (Figure 1). <br /> Postclosure Maintenance Plan Addendum San Joaquin County <br /> Corral Hollow Sanitary Landfill Department of Public Works <br /> October 26,2012 2 Solid Waste Division <br />