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Table 3c <br />Summary of Analytical Results for Groundwater Monitoring Well Network - Deep Zone <br />Revised Quarterly Monitoring Report - Fourth Quarter/Annual 2024 <br />9999 South Austin Road <br />San Joaquin County, California <br />AMW-6 AMW-23D AMW-28 AMW-33 AMW-34 AMW-34M AMW-36 AMW-37 <br />11/20/2024 11/15/2024 11/22/2024 11/22/2024 11/14/2024 11/14/2024 11/22/2024 11/13/2024 <br />Field Parameters <br />pH SU 7.76 8.36 7.74 7.46 8.3 7.87 7.92 8.02 <br />Specific Conductance µS/cm 496 215 874 1075 183 750 468 629 <br />Temperature °C 16.5 18.1 18.1 17.7 17.9 18.2 18.3 17.9 <br />Turbidity NTU 2 1 8 1 1 3 1 1 <br />Monitoring Parameters – Routine <br />Barium, Dissolved mg/L ---------------- <br />Bicarbonate Alkalinity mg/L 200 110 270 250 110 250 170 230 <br />Calcium, Dissolved mg/L 37 66 86 100 12 68 47 70 <br />Carbonate mg/L <2.5 <2.5 <2.5 <5 <2.5 <2.5 <2.5 <2.5 <br />Chloride mg/L 34 8.1 62 130 7.3 70 43 37 <br />Magnesium, Dissolved mg/L 19 32 42 51 5.3 34 17 28 <br />Nitrate as Nitrogen mg/L 3.5 <0.1 21 29 <0.1 13 3.7 13 <br />Potassium, Dissolved mg/L 5.5 7.1 6.8 8.1 2.3 6.6 3.4 7.6 <br />Sodium, Dissolved mg/L 22 37 39 36 17 26 31 34 <br />Strontium, Dissolved mg/L 0.40 0.72 0.9 1 0.14 0.72 0.45 0.69 <br />Sulfate mg/L 27 4.7 50 37 0.97 J 46 19 39 <br />Total Dissolved Solids mg/L 360 160 540 660 150 480 300 440 <br />1,2,3-Trichloropropane by SRL 524M <br />1,2,3-Trichloropropane µg/L <0.0050 <0.005 0.018 0.011 <0.005 <0.005 <0.005 <0.005 <br />Volatile Organic Compounds <br />1,1-Dichloroethane µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,1-Dichloroethene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,2-Dichlorobenzene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,2-Dichloropropane µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,4-Dichlorobenzene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Benzene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Carbon Disulfide µg/L <1 <1 <1 <1 <1 <1 <1 <1 <br />Carbon Tetrachloride µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />CFC-11 µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />CFC-12 µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Chlorobenzene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Chloroform µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />cis-1,2-Dichloroethene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Methyl-tert-butylether µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Naphthalene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Tetrachloroethene µg/L 0.73 <0.5 0.32 J <0.5 <0.5 <0.5 <0.5 <0.5 <br />Toluene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />trans-1,2-Dichloroethene µg/L <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Trichloroethene µg/L 0.15 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Notes: <br />1. Only organic compounds reported above the detection limits are shown. <br />Acronyms and Abbreviations: <br />°C = degree Celsius <br />< = the analyte was not detected at a concentration greater than laboratory practical quantitation limit <br />-- = not applicable <br />µg/L = microgram per liter <br />µS/cm = microSiemen per centimeter <br />CFC-11 = trichlorofluoromethane <br />CFC-12 = dichlorodifluoromethane <br />mg/L = milligram per liter <br />NTU = nephelometric turbidity unit <br />SRL = California Department of Public Health's Sanitation and Radiation Laboratories <br />SU = standard pH unit <br />Qualifier: <br />J = Estimated concentration. <br />Analyte Unit <br />2. Bold indicates the analyte was detected at a concentration greater than the laboratory practical quantitation limit. A bolded value with a J qualifier represents <br />exceedance of the laboratory method detection limit. <br />Forward 4Q24 Tables 1/1