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Table 10
<br />Leachate Analytical Results, Fourth Quarter 2023 - Forward Unit
<br />Forward Landfill, Manteca, California
<br />Compost Pond F-Leachate Pond F-North D-01N D-01S D-02 D93/95 D-88A D-88B D-87 T-1 T-2 T-3
<br />11/8/2023 11/8/2023 11/16/2023 11/16/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023 11/13/2023
<br />Field Parameters
<br />pH SU 9.03 8.26 8.27 6.87 6.76 7.30 7.30 953 9.57 DRY DRY DRY DRY
<br />Specific Conductance µS/cm 2,726 11,530 9,997 8,515 4,371 7,997 5,134 57 57 DRY DRY DRY DRY
<br />Temperature ˚C 16.5 17.8 18.6 29.4 25.1 23.9 22.3 20.7 21.6 DRY DRY DRY DRY
<br />Turbidity NTU 144 371 2.0 22 20 10 10 15 17 DRY DRY DRY DRY
<br />General Chemistry
<br />Bicarbonate mg/L 610 2,100 1,600 2,100 1,500 1,700 1,600 26,000 27,000 DRY DRY DRY DRY
<br />Calcium mg/L 88 67 73 270 240 2600 380 6.2 6.1 DRY DRY DRY DRY
<br />Carbonate mg/L 96 52 55 <5 <5 <5 <5.0 18,000 18,000 DRY DRY DRY DRY
<br />Chloride mg/L 380 3,100 2,700 1,800 840 1,800 920 250 250 DRY DRY DRY DRY
<br />Magnesium mg/L 82 460 390 270 180 3100 220 3.0 2.3 J DRY DRY DRY DRY
<br />Nitrate as N mg/L <0.2 <2 25 <1 <0.5 <1 <0.5 <10 <10 DRY DRY DRY DRY
<br />Potassium mg/L 370 190 230 38 16 470 7.6 35 J 37 J DRY DRY DRY DRY
<br />Sodium mg/L 130 1,600 1,600 1,100 650 13,000 660 26,000 27,000 DRY DRY DRY DRY
<br />Sulfate mg/L 2.5 15 J 38 3.8 J 2.2 J 160 260 36 J 78 J DRY DRY DRY DRY
<br />Total Dissolved Solids mg/L 1,700 7,200 5,800 5,000 2,800 4,800 3,000 63,000 60,000 DRY DRY DRY DRY
<br />Inorganic Constituents of Concern
<br />Dissolved Cyanide mg/L 0.00380 J 0.00539 0.00381 J 0.0197 J 0.00509 0.00972 0.00833 0.063 0.0494 J DRY DRY DRY DRY
<br />Dissolved Sulfide mg/L 0.058 J 0.35 <0.5 <0.1 <0.1 <0.1 <0.1 3.3 7.6 DRY DRY DRY DRY
<br />Aluminum, dissolved mg/L 0.052 <0.05 <0.05 0.12 <0.05 <2.5 <0.05 <2.5 <2.5 DRY DRY DRY DRY
<br />Antimony, dissolved mg/L <0.1 0.053 J 0.0087 J <0.2 <0.1 <5 <0.1 <5 <5.0 DRY DRY DRY DRY
<br />Arsenic, dissolved mg/L 0.013 J 0.18 J 0.082 J <0.1 0.045 J <2.5 <0.05 <2.5 <2.5 DRY DRY DRY DRY
<br />Barium, dissolved mg/L 0.028 3.6 0.75 4.5 4.2 23 0.26 0.99 0.98 DRY DRY DRY DRY
<br />Beryllium, dissolved mg/L <0.01 <0.01 <0.01 0.0013 J 0.0012 J 0.025 J 0.0011 J 0.027 J <0.5 DRY DRY DRY DRY
<br />Cadmium, dissolved mg/L <0.01 0.0017 J <0.01 <0.02 <0.01 <0.5 <0.01 <0.5 <0.5 DRY DRY DRY DRY
<br />Chromium, dissolved mg/L <0.01 0.0072 J 0.007 J 0.01 J 0.0022 J 0.2 J 0.0023 J 0.64 0.63 DRY DRY DRY DRY
<br />Hexavalent Chromium mg/L <0.0002 <0.0002 0.0017 J 0.00015 J 0.000075 J 0.0002 0.000085 J <0.0002 <0.0002 DRY DRY DRY DRY
<br />Cobalt, dissolved mg/L <0.05 0.0053 J 0.0093 J 0.011 J 0.0074 J 0.15 J <0.05 <2.5 <2.5 DRY DRY DRY DRY
<br />Copper, dissolved mg/L <0.01 <0.01 0.024 0.0062 J <0.01 <0.5 <0.01 0.1 J 0.14 J DRY DRY DRY DRY
<br />Iron, dissolved mg/L <0.05 0.53 <0.25 0.92 0.36 11 15 2.7 2.7 DRY DRY DRY DRY
<br />Lead, dissolved mg/L <0.05 0.006 J 0.0036 J <0.1 <0.05 <2.5 <0.05 <2.5 <2.5 DRY DRY DRY DRY
<br />Manganese, dissolved mg/L 0.14 1.0 0.047 J 2.6 2.6 17 9.5 <0.5 <0.5 DRY DRY DRY DRY
<br />Mercury, dissolved mg/L 0.000023 J 0.000028 J 0.00011 J <0.0002 0.000065 J <0.0002 0.00023 0.0014 0.00078 DRY DRY DRY DRY
<br />Nickel, dissolved mg/L 0.011 0.17 0.19 0.11 0.073 1.1 0.018 0.72 0.72 DRY DRY DRY DRY
<br />Selenium, dissolved mg/L <0.1 0.04 J 0.019 J <0.2 <0.1 <5 <0.1 <5 <5 DRY DRY DRY DRY
<br />Silver, dissolved mg/L <0.01 <0.01 <0.01 <0.02 0.0012 J <0.5 <0.01 <0.5 <0.5 DRY DRY DRY DRY
<br />Thallium, dissolved mg/L <0.1 <0.1 <0.1 <0.2 <0.1 <5 <0.1 <5 <5 DRY DRY DRY DRY
<br />Tin, dissolved mg/L <0.05 <0.25 <0.25 <0.1 <0.05 <2.5 <0.05 <2.5 <2.5 DRY DRY DRY DRY
<br />Vanadium, dissolved mg/L 0.0088 J <0.05 0.027 J 0.012 J <0.01 0.33 J <0.01 1.4 1.4 DRY DRY DRY DRY
<br />Zinc, dissolved mg/L <0.01 0.0062 J 0.0058 J 0.068 0.0071 J 0.4 J 0.0061 J <0.5 <0.5 DRY DRY DRY DRY
<br />Volatile Organic Compounds
<br />1,1-Dichloroethane µg/L <0.5 <2.5 <0.5 <0.5 0.22 J <25 0.47 J <50 <50 DRY DRY DRY DRY
<br />1,2-Dichlorobenzene µg/L <0.5 <2.5 <0.5 0.24 J 0.48 J <25 0.12 J <50 <50 DRY DRY DRY DRY
<br />1,2-Dichloroethane µg/L <0.5 <2.5 <0.5 2.3 2.4 <25 4.9 <50 <50 DRY DRY DRY DRY
<br />1,2-Dichloropropane µg/L <0.5 <2.5 <0.5 0.7 0.67 <25 1.2 <50 <50 DRY DRY DRY DRY
<br />1,4-Dichlorobenzene µg/L <0.5 <2.5 <0.5 7.9 14 <25 4.8 <50 7.0 J DRY DRY DRY DRY
<br />2-Butanone (MEK)µg/L <10 2,400 <10 <10 <10 <500 <10 <1000 <1000 DRY DRY DRY DRY
<br />2-Methyl-1-propanol µg/L <20 700 <20 <20 <20 <1000 <20 <2000 <2000 DRY DRY DRY DRY
<br />4-Methyl-2-Pentanone µg/L <10 28 J <10 <10 <10 <500 <10 <1000 <1000 DRY DRY DRY DRY
<br />Acetone µg/L <10 2,700 <10 <10 <10 370 J <10 3700 1,800 DRY DRY DRY DRY
<br />Benzene µg/L <0.5 <2.5 <0.5 4.2 3.9 5.0 J 0.16 J <50 <50 DRY DRY DRY DRY
<br />Chlorobenzene µg/L <0.5 <2.5 <0.5 <0.5 1.8 <25 <0.5 <50 <50 DRY DRY DRY DRY
<br />cis-1,2-Dichloroethene µg/L <0.5 <2.5 <0.5 1.5 0.30 J <25 1.1 <50 <50 DRY DRY DRY DRY
<br />Di-isopropyl ether µg/L <0.5 <2.5 <0.5 <0.5 1.1 <25 4.3 <50 <50 DRY DRY DRY DRY
<br />Ethanol µg/L <250 27,000 <250 <250 <250 <12000 <250 <25000 <25000 DRY DRY DRY DRY
<br />Ethyl tert-butyl ether µg/L <0.5 <2.5 <0.5 <0.5 0.36 J <25 <0.5 <50 <50 DRY DRY DRY DRY
<br />Ethylbenzene µg/L <0.5 <2.5 <0.5 6.2 0.64 <25 <0.5 <50 26 J DRY DRY DRY DRY
<br />Methyl-tert-butylether µg/L <0.5 <2.5 <0.5 11 12 <25 22 28 J 320 DRY DRY DRY DRY
<br />Naphthalene µg/L <0.5 3.0 <0.5 7.7 4.9 <25 <0.5 <50 <50 DRY DRY DRY DRY
<br />Analyte Unit
<br />Forward 4Q23 Tables 1/2
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