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Table 5b <br />Suction Lysimeter Air Sampling Analytical Results <br />Forward Landfill Quarterly Monitoring Report – Third Quarter 2025 <br />9999 South Austin Road <br />San Joaquin County, California <br />Suction Lysimeter <br />FU-05-B <br />8/15/2025 <br />VOCs by USEPA Method TO-15 <br />1,1-Dichloroethane μg/m3 9.6 <br />1,1-Dichloroethene μg/m3 4.8 <br />1,2-Dichloroethane μg/m3 13 <br />1,2-Dichloropropane μg/m3 47 <br />1,2-Dichlorotetrafluoroethane μg/m3 46 <br />2-Butanone (MEK)μg/m3 58 <br />Acetone μg/m3 3,100 <br />Benzene μg/m3 670 <br />Carbon Disulfide μg/m3 15 <br />Chlorodifluoromethane μg/m3 2,000 <br />Chloroethane μg/m3 110 <br />Chloroform μg/m3 14 <br />Chloromethane μg/m3 7.5 <br />cis-1,2-Dichloroethene μg/m3 92 <br />Cyclohexane μg/m3 160 <br />Dichloromethane μg/m3 2.6 J <br />Ethanol μg/m3 38 <br />Ethylbenzene μg/m3 25 <br />Hexane μg/m3 120 <br />Isopropyl alcohol μg/m3 70 <br />Methylene chloride μg/m3 2.6 <br />m&p-Xylenes μg/m3 59 <br />n-Heptane μg/m3 69 <br />o-Xylene μg/m3 50 <br />Propylene μg/m3 850 <br />Tetrachloroethene μg/m3 33 <br />Tetrahydrofuran μg/m3 14 <br />Toluene μg/m3 27 <br />Total Xylenes μg/m3 110 <br />trans-1,2-Dichloroethene μg/m3 6.0 <br />Trichloroethene μg/m3 22 <br />Vinyl chloride μg/m3 99 <br />Note: <br />1. Only VOCs reported at concentrations greater than 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 />μg/m³ = microgram per cubic meter <br />USEPA = United States Environmental Protection Agency <br />VOC = volatile organic compound <br />Qualifier: <br />J = Estimated concentration. <br />Analyte Units <br />Forward 3Q25 Tables 1/1