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ADDENDUM <br /> FINAL POSTCLOSURE MAINTENANCE PLAN <br /> 1.0 RESPONSIBILITY OF POSTCLOSURE MAINTENANCE <br /> San Joaquin County Public Works Department, Solid Waste Division is responsible for all <br /> aspects of postclosure maintenance for the extended cap with the current postclosure <br /> maintenance procedure for the entire Corral Hollow Sanitary Landfill (CHSL). The Solid <br /> Waste Division will answer any questions pertaining to postclosure maintenance for the <br /> extended cap. Reports of the postclosure maintenance can be 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 /> .1 LEACHATE <br /> CHSL and the closure cap extension cap area are unlined; therefore, leachate will <br /> not be collected. Leachate will be controlled by maintaining proper cover to <br /> promoting runoff prior to infiltration. <br /> 2.2 GROUND WATER <br /> The closure cap extension area falls in the current groundwater monitoring <br /> network; therefore, no new groundwater wells will be installed in the area. Ground <br /> water monitoring maintenance procedures identified in the initial postclosure <br /> monitoring plan will be retained. <br /> 2.3 LANDFILL GAS <br /> 2.3.A Landfill Gas Migration Monitoring <br /> The extended cap area falls within the current landfill gas (LFG) monitoring <br /> network. No additional monitoring wells are needed at this time. No <br /> additional maintenance requirements are anticipated. <br /> Postclosure Maintenance Plan Addendum San Joaquin County <br /> Corral Hollow Sanitary Landfill 2 Department of Public Works <br /> Revised October 6,2011 Solid Waste Division <br />