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Table 8 <br />Leachate Analytical Results <br />Revised Quarterly Monitoring Report - Fourth Quarter/Annual 2024 <br />9999 South Austin Road <br />San Joaquin County, California <br />T-1 T-2 T-3 D-87 D-88A D-88B D-89 D93/95 D-01N D-01S D-02 FU-03 FU-04E FU-04W FU-05 FU-06 FU-17 FU-19E FU-19W FU-23 FU-24 F-North F-West F-Leachate A-Leachate <br />12/6/2024 12/6/2024 12/6/2024 12/6/2024 12/6/2024 12/6/2024 12/6/2024 12/6/2024 12/4/2024 12/5/2024 12/4/2024 12/4/2024 12/6/2024 12/6/2024 12/6/2024 12/5/2024 12/5/2024 12/6/2024 12/4/2024 12/6/2024 12/6/2024 12/4/2024 12/4/2024 12/4/2024 12/4/2024 <br />Analyte Unit <br />Volatile Organic Compounds <br />1,1-Dichloroethane µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.36 J 0.11 J 0.14 J 0.14 J <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,2-Dichlorobenzene µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.15 J 0.36 J 0.51 <0.5 0.13 J 0.91 0.32 J 0.21 J 0.13 J NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />1,2-Dichloroethane µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.36 J 1.80 <0.5 <0.5 0.31 J <0.5 <0.5 0.45 J <0.5 NS 0.20 J 1.8 1.1 2.3 <0.5 <0.5 <0.5 <0.5 <br />1,2-Dichloropropane µg/L DRY DRY DRY DRY <0.5 <0.5 NS 1.5 0.5 0.55 0.88 0.57 0.35 J 0.46 J 0.59 0.54 NS 0.27 J 1.1 1.2 0.89 <0.5 <0.5 <0.5 <0.5 <br />1,2,3 TCP µg/L DRY DRY DRY DRY <1.0 <1.0 NS <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NS <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <br />1,4-Dichlorobenzene µg/L DRY DRY DRY DRY <0.5 <0.5 NS <0.5 9.9 14 2.6 9.9 7.5 7.9 5.8 2.7 NS 2.1 2.7 3.0 2.1 <0.5 <0.5 0.13 J <0.5 <br />2-Butanone (MEK) µg/L DRY DRY DRY DRY <10 <10 NS <10 <10 <10 <10 <10 <10 <10 <10 <10 NS <10 <10 <10 19 <10 <10 680 1,700 <br />2-Methyl-1-propanol µg/L DRY DRY DRY DRY <20 <20 NS <20 <20 <20 <20 130 <20 <20 <20 <20 NS <20 150 <20 <20 <20 <20 750 <20 <br />4-Methyl-2-Pentanone µg/L DRY DRY DRY DRY 7.7 5.1 NS <10 <10 <10 <10 <10 <10 2.2 J <10 <10 NS <10 <10 3.7 J 8.6 J <10 <10 17 20 <br />Acetone µg/L DRY DRY DRY DRY <10 21 NS <10 <10 <10 <10 <10 20 28 25 15 NS 23 <10 38 63 8.2 J <10 760 3,500 <br />Acetonitrile µg/L DRY DRY DRY DRY <10 <10 NS <10 <10 <10 <10 <10 <10 <10 <10 <10 NS 26 <10 21 22 <10 <10 <10 <10 <br />Benzene µg/L DRY DRY DRY DRY 0.14 <0.5 NS 6.1 3.6 2.9 4.0 11 7.8 7.4 7.7 5.8 NS 4.6 5.9 5.6 6.0 <0.5 <0.5 0.49 J 0.27 J <br />Carbon Disulfide µg/L DRY DRY DRY DRY <1 1.3 NS <1.0 <1 <1 <1 <1 1.1 2.0 1.6 0.85 J NS 0.73 J <1 <1 <1 <1 <1 0.51 J <1 <br />CFC-12 µg/L DRY DRY DRY DRY <0.5 <0.5 NS <0.50 <0.5 <0.5 0.40 J <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Chlorobenzene µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.74 1.2 2.2 <0.5 1.4 1.4 1.3 1.2 0.77 NS 0.36 J 0.51 0.41 J 0.37 J <0.5 <0.5 <0.5 <0.5 <br />Chloroethane µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.33 J <0.5 <0.5 0.20 J <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />cis-1,2-Dichloroethene µg/L DRY DRY DRY DRY 0.41 0.24 NS 0.15 J <0.5 <0.5 <0.5 1.1 0.37 J 0.76 0.88 0.96 NS <0.5 0.85 0.57 1.4 <0.5 <0.5 <0.5 <0.5 <br />Di-isopropyl ether µg/L DRY DRY DRY DRY 0.53 0.4 NS 2 0.6 0.64 0.39 J <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 0.24 J 0.26 J <0.5 <0.5 <0.5 <0.5 <br />Ethanol µg/L DRY DRY DRY DRY <250 <250 NS <250 <250 <250 180 J <250 <250 <250 <250 <250 NS <250 <250 <250 <250 <250 <250 35,000 <250 <br />Ethyl tert-butyl ether µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.39 J <0.5 0.19 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Ethylbenzene µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.87 0.73 0.15 J 0.20 J 5.5 15 16 7.3 7.1 NS 17 6.4 3.6 12 <0.5 <0.5 0.27 J <0.5 <br />Methyl-tert-butylether µg/L DRY DRY DRY DRY 0.33 0.36 NS 16 14 11 1.6 1.5 1.1 1.1 0.84 0.56 NS 0.27 J 0.42 J 0.36 J 1.0 <0.5 <0.5 <0.5 <0.5 <br />Naphthalene µg/L DRY DRY DRY DRY <0.5 <0.5 NS 3.4 6.4 0.92 3.2 4.0 22 9.1 13 6.5 NS 9.2 17 13 18 <0.5 <0.5 1.6 0.47 J <br />Styrene (Monomer)µg/L DRY DRY DRY DRY <0.5 <0.5 NS <0.50 <0.5 <0.5 <0.5 <0.5 0.73 <0.5 <0.5 <0.5 NS <0.5 0.74 <0.5 1.1 <0.5 <0.5 <0.5 <0.5 <br />tert-Amyl methyl ether µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.25 J 0.51 1 0.33 J <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 0.48 J <0.5 <0.5 <0.5 <0.5 <br />tert-Butyl alcohol µg/L DRY DRY DRY DRY 150 150 NS 1600 5,700 7,200 4,800 5,900 3,100 4,100 3,700 4,500 NS 3,700 7,600 3,100 2,100 10 <10 840 980 <br />Toluene µg/L DRY DRY DRY DRY 0.11 <0.5 NS 0.75 0.35 J 0.37 J 0.25 J 0.70 1.6 0.83 0.80 1.6 NS 2.6 1.7 2.1 5.0 <0.5 <0.5 0.57 0.23 J <br />Total Xylenes µg/L DRY DRY DRY DRY <1 <1 NS 11 5.0 3.90 1.3 5.6 16 7.9 12 4.4 NS 27 11 13 17 <1 <1 <1 <1 <br />Trichloroethene µg/L DRY DRY DRY DRY <0.5 <0.5 NS <0.50 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 <0.5 <0.5 0.14 J <0.5 <0.5 <0.5 <0.5 <br />Vinyl chloride µg/L DRY DRY DRY DRY <0.5 <0.5 NS 0.93 <0.5 <0.5 0.80 <0.5 <0.5 <0.5 <0.5 <0.5 NS 0.57 0.93 0.32 J <0.5 <0.5 <0.5 <0.5 <0.5 <br />Notes: <br />1. Only organic compounds reported at concentrations 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 />3. During 4Q24, D-89 was under repair and not sampled. <br />4. During 4Q24, samples originally collected from FU-17 were moved to FU-24. <br />Acronyms and Abbreviations: <br />°C = degree Celsius <br />< = indicates that the analyte was not detected at a concentration greater than the laboratory practical quantitation limit <br />µg/L = microgram per liter <br />µS/cm = microSiemen per centimeter <br />CFC-12 = dichlorodifluoromethane <br />mg/L = milligram per liter <br />NA = not analyzed; analysis of semi-annual parameters is conducted in the first and third quarters <br />NS = not sampled <br />NTU = nephelometric turbidity unit <br />SRL = California Department of Public Health's Sanitation and Radiation Laboratories <br />SU = standard unit <br />Qualifier: <br />J = Estimated concentration. <br />Forward 4Q24 Tables 2/2