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This project is to be pursued in lieu of complete closure of Module "I". On July 20, 2004,the San <br /> Joaquin County Board of Supervisors approved a contract with Kleinfelder to design the Site <br /> Improvement Project. <br /> MONITORING PROGRAM <br /> Water quality is monitored in accordance with WDR Order No.R5-2003-0020. <br /> Groundwater <br /> The groundwater well network now consists of upgradient well MW-1 and downgradient wells <br /> MW-2R and MW-3 (Figure 3). All monitoring wells are equipped with dedicated purge and <br /> sampling pumps. Groundwater well MW-2R replaced well MW-2, which was abandoned in June <br /> 2003 because its location was in the expansion footprint of Module 1. <br /> Groundwater samples are analyzed semiannually for the following monitoring and field <br /> parameters as specified in the WDRs: <br /> • Temperature Chloride <br /> • Electrical Conductivity Sulfate <br /> • pH Nitrate-Nitrogen <br /> • Turbidity Calcium <br /> • Total Dissolved Solids Magnesium <br /> Potassium Sodium <br /> • Carbonate Alkalinity 0 Bicarbonate Alkalinity <br /> • Volatile Organic Compounds (VOCs) <br /> Groundwater samples are analyzed every 5 years for the following Constituents of Concern <br /> (COCs): <br /> • Total Organic Carbon <br /> • Inorganics (dissolved) <br /> • VOCs (extended list) <br /> • Semivolatile Organic Compounds <br /> • Chlorophenexy Herbicides <br /> • Organophosphorous Compounds <br /> A COC groundwater monitoring event occurred in the third quarter of 2004. The next monitoring <br /> event will occur during the first quarter of 2010. <br /> Foothill Sanitary Landfill 4 Department of Public Works/Solid Waste <br /> IST Semester 2005 Groundwater Monitoring County of San Joaquin-July 29,2005 <br />