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Ll <br />I_111QAA I 0111 <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 />2.1 LEACHATE <br />CHSL and the extension cap area are unlined; therefore, leachate will not be <br />collected. Leachate will be controlled by maintaining proper cover to promoting <br />runoff prior to infiltration. <br />wMelasul <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 />April 2, 2008 Solid Waste Division <br />