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2.3.13 LANDFILL GAS COLLECTION <br /> A LFG system was installed in 2001 as a corrective action against LFG <br /> migration and VOC impacts to groundwater. The LFG gas system <br /> comprises of: <br /> LFG extraction wells. <br /> There are 44 LFG extraction wells installed in the landfill (Figure 2). Each <br /> LFG well has a control valve and monitoring port to measure the methane <br /> content and applied vacuum. Each well is adjusted based on the methane <br /> content at that well, considering the need to control offsite migration and <br /> minimize air introduction in the landfill. The LFG system is monitored and <br /> maintained monthly. <br /> The County plans to install two new LFG extraction wells in the Caltrans <br /> property of the extended closure cap area. The new LFG extraction wells <br /> will connect to the existing LFG system and will be adjusted concurrently <br /> with the other wells. <br /> Flare station. <br /> The flare station includes a flare and 2 blowers that produce vacuum in the <br /> LFG extraction wells. A condensate destruction system is also installed at <br /> the flare station. The flare is operated in accordance with San Joaquin Air <br /> Pollution Control District (AQMD) permit # N-4363-2-0. <br /> ' 3.0 SUMMARY OF REPORTING REQUIREMENTS <br /> 3.1 LEACHATE <br /> There is no change in reporting requirements for leachate due to the extension of <br /> p 9 <br /> the closure cap. <br /> 3.2 GROUNDWATER <br /> There is no change in reporting requirements for groundwater due to the extension <br /> of the closure cap. <br /> Postclosure Maintenance Plan Addendum San Joaquin County <br /> Corral Hollow Sanitary Landfill 3 Department of Public Works <br /> Revised October 6,2011 Solid Waste Division <br />