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TABLE 3 <br /> Second Semester 2007 Leachate Field Measurements <br /> Foothill Sanitary Landfill <br /> Total Flow Flow Rate <br /> MONTH pH E.C. (pmhos/cm)......................................_gallons._ -- - gal/day.. .......__............ <br /> July 5.90 2540 NR (1) NR (1) <br /> August 6.42 3060 12,543 NR (1) <br /> ......................................................................_.......--..._...--- ._.-...._...........--.......--._..._......................................................... <br /> September 6.37 2780 21,536 321 <br /> _....-....._....._...................._.....__._...-- ----... ---.._.._._...._..._.._........__._.......---................_....._..._.__...._..._...._.......__..._..._.. <br /> October 6.08 2780 35,458 340 <br /> ___. ........_.................................................................................. .. . <br /> November 6.00 2880 35,663 12 (2) <br /> __..._._._____............-___.._...._...._._............................................. ..._...................... ........_._._.. <br /> December 6.12 2880 47,329 343 <br /> (1) The display on the leachate pump malfunctioned in July, preventing the <br /> recording of total gallons pumped for that month and a calculation of the <br /> average flow rate for the months of July and August. However, the leachate <br /> pump and controls functioned satisfactorily during this time, preventing a <br /> build-up of leachate on the landfill liner. <br /> (2) The leachate system was operated by hand, pumping leachate directly into <br /> a water truck for distribution over the refuse of Module 1 (lined). The <br /> leachate level in the sump was maintained below regulatory limits, but the <br /> pumping was sporadic, with <br /> Foothill Sanitary Landfill 16 Department of Public Works/Solid Waste <br /> 2'd Semester and Annual 2007 Groundwater Monitoring County of San Joaquin—January 31,2008 <br />