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Table 3a <br />Summary of Analytical Results for Groundwater Monitoring Well Network - Shallow Zone <br />Revised Quarterly Monitoring Report - Fourth Quarter/Annual 2024 <br />9999 South Austin Road <br />San Joaquin County, California <br />Field Parameters <br />pH SU <br />Specific Conductance µS/cm <br />Temperature °C <br />Turbidity NTU <br />Monitoring Parameters – Routine <br />Barium, Dissolved mg/L <br />Bicarbonate Alkalinity mg/L <br />Calcium, Dissolved mg/L <br />Carbonate mg/L <br />Chloride mg/L <br />Magnesium, Dissolved mg/L <br />Nitrate as Nitrogen mg/L <br />Potassium, Dissolved mg/L <br />Sodium, Dissolved mg/L <br />Strontium, Dissolved mg/L <br />Sulfate mg/L <br />Total Dissolved Solids mg/L <br />1,2,3-Trichloropropane by SRL 524M <br />1,2,3-Trichloropropane µg/L <br />Volatile Organic Compounds <br />1,1-Dichloroethane µg/L <br />1,1-Dichloroethene µg/L <br />1,2-Dichlorobenzene µg/L <br />1,2-Dichloropropane µg/L <br />1,4-Dichlorobenzene µg/L <br />Benzene µg/L <br />Carbon Disulfide µg/L <br />Carbon Tetrachloride µg/L <br />CFC-11 µg/L <br />CFC-12 µg/L <br />Chlorobenzene µg/L <br />Chloroform µg/L <br />cis-1,2-Dichloroethene µg/L <br />Methyl-tert-butylether µg/L <br />Naphthalene µg/L <br />Tetrachloroethene µg/L <br />Toluene µg/L <br />trans-1,2-Dichloroethene µg/L <br />Trichloroethene µg/L <br />Analyte Unit <br />AMW-51S AMW-52S AMW-54 AMW-54R AMW-55 AMW-57S AMW-58S AMW-59S AMW-60S AMW-61S AMW-62 AMW-63 AMW-64 7833-MW-1 7833-MW-2 7833-MW-3 7833-MW-4 <br />11/22/24 11/22/24 11/21/24 11/21/24 11/21/24 11/15/24 11/21/24 11/21/24 11/22/24 11/22/24 11/21/24 11/21/24 11/22/24 11/21/24 11/21/24 11/21/24 11/21/24 <br />7.84 8.02 7.58 7.68 7.52 7.72 7.84 7.92 7.68 7.56 7.15 7.62 7.54 7.74 7.64 7.58 7.73 <br />1019 637 1064 1061 993 435 1045 841 1023 1228 885 1159 1384 1216 1132 1340 870 <br />19.1 18.5 19.3 20.5 18.4 15.2 19.1 18.6 20 20.6 20.6 20.5 19.7 18 18.4 17.4 17.7 <br />1 124 2 5 2 5 1 1 5 5 4 2 5 15 8 26 58 <br />---------------------------------- <br />410 310 520 510 380 250 160 200 320 340 510 410 490 250 240 280 200 <br />110 62 110 100 80 36 92 76 98 120 90 120 140 110 100 120 76 <br /><5 <2.5 <5 <5 <2.5 <2.5 <5 <2.5 <5 <5 <2.5 <5 <5 <5 <5 <5 <2.5 <br />80 13 55 62 78 5.6 190 130 130 180 24 71 130 130 120 160 110 <br />52 26 50 48 38 17 45 35 52 57 47 54 61 53 52 62 37 <br />7 4 7.4 6.8 4.4 0.74 14 8.5 5.7 8.3 0.38 11 25 39 36 38 18 <br />5.7 5.4 6.0 6.3 6.7 4.4 6 5.7 6.9 8.1 7.4 5.1 9.7 6.6 6.6 8.4 6.7 <br />44 44 51 57 74 33 36 32 39 50 35 46 71 40 38 43 33 <br />1.1 0.59 1.1 1.1 0.81 0.39 0.93 0.76 1.0 1.2 0.99 1.1 1.4 1.1 1.1 1.3 0.79 <br />75 34 47 50 99 21 51 39 44 54 24 170 78 78 63 69 33 <br />660 440 700 700 680 300 890 570 620 780 570 810 860 730 690 940 530 <br /><0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 0.02 0.029 0.012 <br /><0.5 <0.5 0.42 J 0.54 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.57 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.48 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 0.22 J 0.20 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <br />0.96 1.8 <0.5 <0.5 <0.5 <0.5 6.9 0.52 1.5 1.2 <0.5 <0.5 0.31 J <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />0.96 <0.5 <0.5 <0.5 <0.5 <0.5 5.7 <0.5 1.4 0.97 <0.5 <0.5 <0.5 <0.5 <0.5 0.25 J <0.5 <br /><0.5 <0.5 3.6 4.3 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.32 J 2.2 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 0.23 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />0.53 1.1 4.2 3.3 <0.5 <0.5 3.8 0.63 1.6 0.98 0.44 J 3.9 0.22 J <0.5 <0.5 0.30 J <0.5 <br /><0.5 <0.5 <0.5 1.0 <0.5 <0.5 <0.5 <0.5 0.94 1.5 1.6 1.3 1.0 <0.5 <0.5 <0.5 <0.5 <br /><0.5 <0.5 <0.5 0.15 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />0.14 J 0.81 3.0 2.6 <0.5 <0.5 4.0 <0.5 1.1 0.39 J 0.34 J 1.3 <0.5 0.78 0.96 140 1.4 <br />Notes: <br />1. Only organic compounds reported above the detection limits are shown. <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 exceedance of the laboratory method detection limit. <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 />Dup = duplicate sample <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 />Forward 4Q24 Tables 3/3