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Table 4 <br />Summary of Analytical Results, Fourth Quarter 2023 - Forward Unit <br />Forward Landfill, Manteca, California <br />MW-1 MW-2A MW-3 MW-10 MW-13 MW-14 MW-15 MW-16 MW-17R MW-19R MW-21 MW-22 MW-22 <br />(Dup)MW-23R MW-24 MW-25 MW-26 <br />11/10/2023 11/13/2023 11/10/2023 11/10/2023 11/10/2023 11/10/2023 11/9/2023 11/10/2023 11/13/2023 11/9/2023 11/13/2023 11/13/2023 11/13/2023 11/9/2023 11/13/2023 11/13/2023 11/13/2023 <br />Field Parameters <br />pH SU 7.51 7.03 7.56 7.56 7.15 7.07 7.54 7.14 7.32 7.53 7.42 7.52 --7.47 7.51 7.77 7.72 <br />Specific Conductance µS/cm 1,200 1,299 1,026 1,107 1,516 1,243 1,136 1,334 1,323 1,029 1,019 869 --914 1,063 252 240 <br />Temperature ˚C 18.3 18.0 18.9 18.6 19.0 19.3 19.3 19.9 19.6 20.0 18.7 18.6 --18.1 18.2 13.9 14.7 <br />Turbidity NTU 1000 >12 48 15 26 24 50 34 17 19 14 16 --30 11 64 28 <br />Monitoring Parameters - Routine <br />Barium mg/L 0.15 0.093 0.31 0.36 0.17 0.18 0.27 0.6 0.14 0.36 0.31 0.17 0.17 0.077 0.075 0.076 0.07 <br />Bicarbonate mg/L 490 540 420 470 710 560 440 700 500 410 500 350 350 350 360 150 140 <br />Calcium mg/L 130 120 110 120 170 140 120 160 140 120 110 100 100 99 110 35 29 <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 100 72 75 47 63 91 120 66 48 74 47 32 32 41 39 3.5 3.2 <br />Magnesium mg/L 62 60 55 60 86 66 57 80 64 55 55 42 43 39 45 14 12 <br />Nitrate as N mg/L 8.0 13 10 19 13 6.5 6.9 0.1 34 13 6.8 8.9 8.9 20 32 0.15 0.34 <br />Potassium mg/L 8.9 8.3 9.3 10 9.7 9.4 9.7 10 10 10 8.0 6.6 6.7 4.2 6.7 2.4 2.6 <br />Sodium mg/L 81 110 56 57 100 83 75 67 88 55 59 55 54 60 87 15 13 <br />Strontium mg/L 1.4 1.2 1.3 1.4 1.8 1.5 1.3 1.8 1.4 1.3 1.3 1.0 1.0 0.98 1.0 0.35 0.31 <br />Sulfate mg/L 64 100 58 72 130 61 51 39 120 63 54 110 110 67 94 6.9 9.2 <br />Total Dissolved Solids mg/L 760 860 670 750 1000 780 740 820 940 690 610 580 580 640 700 200 200 <br />Volatile Organic Compounds <br />1,1-Dichloroethane µg/L <0.5 0.17 J <0.5 0.14 J <0.5 <0.5 <0.5 <0.5 <0.5 0.12 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Carbon Tetrachloride µg/L <0.5 <0.5 <0.5 3.2 <0.5 <0.5 <0.5 <0.5 <0.5 0.21 J <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 0.2 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 />CFC-12 µg/L <0.5 <0.5 <0.5 0.16 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 />Chloroform µg/L <0.5 <0.5 <0.5 1.2 <0.5 <0.5 <0.5 <0.5 <0.5 0.15 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Tetrachloroethene µg/L <0.5 0.16 J <0.5 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 <0.5 <br />Note: <br />1. Only organic compounds reported above the detection limits are shown. <br />2. Bold analyte was detected above the laboratory practical quantitation limit. <br />Acronyms and Abbreviations: <br />˚C = degree Celsius <br />< = Indicates that the analyte was not detected above 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 />Nitrate as N = nitrate as nitrogen <br />NTU = nephelometric turbidity unit <br />SU = standard pH unit <br />Qualifier: <br />J = Estimated concentration. <br />Analyte Unit <br />Forward 4Q23 Tables 1/1