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MONITORING AND REPORTING PROGRAM 12 <br /> FOR FOOTHILL SANITARY LANDFILL <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> GROUNDWATER <br /> CONCENTRATION LIMITS <br /> Concentration Limits <br /> Constituent Units MW-1* MW-2 LW-1 <br /> Total Dissolved Solids (TDS) mg/L 273 238 279 <br /> Chloride mg/L 14 11 12 <br /> VOCs (EPA 8260 and 8270) gg/L Detect Detect Detect <br /> Sulfate mg/L 8.50 11 18 <br /> Nitrate as N mg/L 0.20 0.10 0.076 <br /> Aluminum, dissolved mg/L 0.50 TBA * TBA * <br /> Antimony, dissolved mg/L 0.30 TBA * TBA * <br /> Arsenic, dissolved mg/L 0.025 TBA * TBA * <br /> Barium, dissolved mg/L TBA * TBA * TBA * <br /> Beryllium, dissolved mg/L TBA * TBA * TBA * <br /> Boron, dissolved mg/L TBA * TBA * TBA * <br /> Cadmium, dissolved mg/L 0.025 TBA * TBA * <br /> Calcium, dissolved mg/L 40 TBA * 45 <br /> Chromium, total dissolved mg/L 0.05 TBA * TBA * <br /> Cobalt, dissolved mg/L TBA * TBA * TBA * <br /> Copper, dissolved mg/L 0.10 TBA * TBA * <br /> Iron, dissolved mg/L 0.25 0.25 0.25 <br /> Lead, dissolved mg/L 0.25 TBA * TBA * <br /> Magnesium, dissolved mg/L 17 TBA * 16 <br /> Manganese, dissolved mg/L 0.05 0.05 0.05 <br /> Mercury, dissolved mg/L 0.001 TBA * TBA * <br /> Molybdenum, dissolved mg/L TBA * TBA * TBA * <br /> Nickel, dissolved mg/L 0.20 TBA * TBA * <br /> Potassium, dissolved mg/L 25 TBA * 25 <br /> Selenium, dissolved mg/L 0.025 TBA * TBA * <br /> Silver, dissolved mg/L 0.05 TBA * TBA * <br /> Sodium, dissolved mg/L 45 TBA * 1.7 <br /> Thallium, dissolved mg/L 0.025 TBA * TBA * <br /> Tin, dissolved mg/L TBA * TBA * TBA * <br /> Vanadium, dissolved mg/L TBA * TBA * TBA * <br /> Zinc, dissolved mg/L 0.10 0.10 TBA * <br /> • To be monitored quarterly for 1-year in order to determine a concentration limit. (TBA) <br /> * MW-1 is a background well <br />