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Table 4 <br />First Quarter 2025 Groundwater VOC Results <br />2025 Annual Corrective Action Evaluation Report <br />Forward Landfill <br />9999 South Austin Road, San Joaquin County, California <br />1,1-Dichloroethane µg/L <br />1,1-Dichloroethene µg/L <br />1,2-Dichloroethane µg/L <br />1,2-Dichloropropane µg/L <br />1,4-Dichlorobenzene 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 />Tetrachloroethene µg/L <br />Toluene µg/L <br />trans-1,2-Dichloroethene µg/L <br />Trichloroethene µg/L <br />TVOCs (non-trace)µg/l <br />Analyte Unit AMW-60M AMW-61S AMW-61M AMW-62 AMW-62 <br />(Dup)AMW-63 AMW-64 DW-9690 7898-A 8106-A PZ-1 PZ-2 PZ-3 CDCR- <br />EW-1 <br />CDCR- <br />EW-2 <br />CDCR- <br />EW-3 <br />CDCR- <br />EW-4 <br />CDCR- <br />EW-5 <br />02/10/2025 02/11/2025 02/11/2025 02/12/2025 02/12/2025 02/12/2025 02/12/2025 02/20/2025 02/20/2025 <br />0.63 <0.50 0.36 J <0.50 <0.50 0.63 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />0.53 <0.50 0.27 J <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 0.13 J <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />7.1 1.1 12 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />0.44 J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />0.89 <0.50 0.57 <0.50 <0.50 <0.50 <0.50 NS <0.50 0.56 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />5.2 0.59 1.4 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />0.41 J <0.50 <0.50 0.25 J <0.50 2.8 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />14 0.81 5.4 0.49 J 0.59 4.0 0.28 J NS 4.5 5.2 NS NS NS NS NS NS NS NS <br />0.64 0.73 0.45 J 0.64 1.2 0.73 0.67 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br /><0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NS <0.50 <0.50 NS NS NS NS NS NS NS NS <br />6.9 0.31 J 2.0 0.35 J 0.39 J 1.7 0.13 J NS 0.86 1.2 NS NS NS NS NS NS NS NS <br />35.9 3.2 21.4 0.64 1.8 9.9 0.67 NS 5.4 7.0 NS NS NS NS NS NS NS NS <br />Notes: <br />1. Estimate/trace (J) concentrations are not used in TVOC calculations and totals <br />2. CDCR-EW-1 through CDCR-EW-5 and PZ-1 through PZ-3 were added to the monitoring program beginning in second quarter 2025. <br />Acronyms and Abbreviations: <br />< = not detected at or above the listed reporting limit <br />-- = sample not collected (dry or insufficient water to sample) <br />µg/L = microgram per liter <br />CFC-11 = trichlorofluoromethane <br />CFC-12 = dichlorodifluoromethane <br />Dup = duplicate sample <br />NS = not sampled <br />TVOC = total volatile organic compound <br />VOC = volatile organic compound <br />7/7