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II FINAL POSTCLOSURE MAINTENANCE COSTS <br /> The post closure maintenance costs area incude: <br /> a Current cost for postclosure maintenance of the initial closed area of 44 acres. <br /> • Additional cost for maintaining the additional closure area. <br /> e Additional monitoring and maintenance cost for the groundwater monitoring <br /> wells installed in 2012. <br /> • Operation and maintenance of the LFG collection system„ Including the <br /> expansion planned for 2013. <br /> • Additional costs to monitor and maintain the closure cap extension area. <br /> 1.0 REVEGETATION <br /> County staff will seed and fertilize the areas of the closure cap where vegetation <br /> '. has not established. The cost of revegetation includes the costs for seed and <br /> fertilizer. <br /> 2.0 LEACHATE <br /> Not applicable. <br /> 3.0 LANDFILL GAS (LFG) MANAGEMENT <br /> T <br /> 3.1 LFG Migration Monitoring <br /> LFG migration monitoring and maintenance costs for the two additional migration <br /> monitoring wells are prorated from currents costs (Table1). <br /> 3.2 LFG COLLECTION <br /> The operational and monitoring cost for the LFG system, including the additional <br /> LFG extraction wells and Horizontal collector planned in the closure project of <br /> 2013 is estimated from the current costs (Table1). <br /> ' Postclosure Maintenance Plan Addendum San Joaquin County <br /> Y <br /> Corral Hollow Sanitary Landfill Department of Public Works <br /> October 26,2012 7 Solid Waste Division <br />