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Table 4 <br />Summary of Analytical Results, First Quarter 2024 – Forward Unit <br />Forward Landfill Water Quality Monitoring Report – First Quarter 2024 <br />9999 South Austin Road <br />San Joaquin County, California <br />MW-1 MW-2A MW-3 MW-10 MW-10 (Dup)MW-13 MW-14 MW-15 MW-16 MW-17R MW-19R MW-21 MW-22 MW-23R MW-24 MW-25 MW-26 <br />1/31/2024 2/1/2024 1/31/2024 1/31/2024 1/31/2024 2/1/2024 2/1/2024 1/30/2024 1/31/2024 2/1/2024 1/30/2024 2/1/2024 2/2/2024 1/30/2024 2/2/2024 1/30/2024 1/30/2024 <br />Field Parameters <br />pH SU 7.43 7.07 7.55 7.51 --6.99 7.14 7.49 7.08 7.50 7.51 7.44 7.55 7.41 7.47 7.73 7.70 <br />Specific Conductance µS/cm 1,167 1,213 1,049 1,138 --1,534 1,145 1,117 1,215 1,348 1,048 934 820 950 1019 307 249 <br />Temperature °C 18.6 19.4 18.9 18.5 --20.3 19.3 19.8 19.2 18.5 20.5 19.1 18.0 18.4 17.5 14.1 15.2 <br />Turbidity NTU 1,000 2 47 4 --21 13 30 11 13 12 4 11 17 3 29 19 <br />Monitoring Parameters – Routine <br />Barium mg/L 0.14 0.084 0.31 0.32 0.34 0.17 0.13 0.26 0.48 0.12 0.33 0.26 0.14 0.076 0.067 0.074 0.069 <br />Bicarbonate mg/L 450 510 410 450 460 770 480 420 610 480 400 500 340 360 330 160 140 <br />Calcium mg/L 110 100 110 110 120 150 110 110 130 130 110 92 81 94 90 35 28 <br />Carbonate mg/L <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <2.5 <2.5 <2.5 <5 <2.5 <2.5 <br />Chloride mg/L 98 76 69 42 42 71 91 100 68 51 70 34 23 38 39 4.7 2.8 <br />Magnesium mg/L 54 53 51 55 56 75 51 50 65 61 49 46 37 38 38 13 12 <br />Nitrate as Nitrogen mg/L 9.1 11 13 21 21 10 7.6 6.7 4.6 35 13 4.3 8.9 19 31 0.67 0.25 <br />Potassium mg/L 8 7.2 8.4 9.3 9.3 8.8 8 8.6 8.6 9.4 9 6.7 5.9 4 5.8 2.2 2.6 <br />Sodium mg/L 70 89 51 56 56 94 64 64 57 76 49 49 57 59 72 13 12 <br />Strontium mg/L 1.2 1.1 1.2 1.3 1.3 1.6 1.1 1.2 1.4 1.2 1.2 1 0.84 0.92 0.89 0.35 0.3 <br />Sulfate mg/L 63 91 59 65 65 95 57 50 28 130 61 42 97 74 81 16 7.4 <br />Total Dissolved Solids mg/L 760 780 670 740 760 980 720 600 750 890 320 590 590 560 710 220 190 <br />Volatile Organic Compounds <br />1,1-Dichloroethane µg/L <0.5 0.18 J 0.13 J 0.16 J 0.17 J <0.5 <0.5 <0.5 <0.5 <0.5 0.14 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Carbon Tetrachloride µg/L <0.5 <0.5 <0.5 2.5 2.7 <0.5 <0.5 <0.5 <0.5 <0.5 0.25 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />CFC-11 µg/L <0.5 <0.5 <0.5 0.19 J 0.21 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 <br />CFC-12 µg/L <0.5 0.11 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 <0.5 <br />Chloroform µg/L <0.5 <0.5 0.14 J 1.0 1.1 <0.5 <0.5 <0.5 <0.5 <0.5 0.19 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />cis-1,2-Dichloroethene µg/L <0.5 <0.5 0.17 J 0.21 J 0.13 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 <br />Tetrachloroethene µg/L <0.5 0.17 J <0.5 0.17 J 0.13 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 <br />Trichloroethene µg/L <0.5 0.11 J <0.5 0.19 J 0.11 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 <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. <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 />SU = standard pH unit <br />Qualifier: <br />J = Estimated concentration. <br />Analyte Unit <br />Forward 1Q24 Tables 7/22