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it r® M r ® M M M ®® M M M M® M M <br />HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />FOOTHILL SANITARY LANDFILL <br />MW -5 <br />Units: mg/l, unless noted <br />Sample Designation MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 MW -5 <br />Sampling Date 7/23/07 4/1/08 7/30/08 1/15/09 8/17/09 10/7/09 2/3/10 9/2/10 1/26/11 8/10/11 1/12/12 7/25/12 2/4/13 8/1/13 1/20/14 <br />1,2,4-Trichlorobenzene <br />NA <br />NA <br /><0.36 <br /><0.36 <br /><0.31 <br />NA <br /><0.17 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br />1,1,1 -Trichloroethane (TCA) <br />NA <br />NA <br /><0.39 <br /><0.46 <br /><0.14 <br />NA <br /><0.081 <br /><0.11 <br /><0.11 <br /><0.11 <br /><0.11 <br /><0.11 <br /><0.11 <br /><0.11 <br /><0.11 <br />1,1,2 -Trichloroethane <br />NA <br />NA <br /><0.44 <br /><0.44 <br /><0.44 <br />NA <br /><0.21 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br />Trichloroethene (TCE) <br /><0.13 <br /><0.31 <br /><0.38 <br /><0.38 <br /><0.13 <br />NA <br /><0.13 <br /><0.085 <br /><0.085 <br /><0.085 <br /><0.085 <br /><0.085 <br /><0.085 <br /><0.085 <br /><0.085 <br />Trichlorofluoromethane <br />NA <br />NA <br /><0.59 <br /><0.47 <br /><0.22 <br />NA <br /><0.11 <br /><0.13 <br /><0.13 <br /><0.13 <br /><0.13 <br /><0.13 <br /><0.13 <br /><0.13 <br /><0.13 <br />1,2,3-Trichloropropane <br />NA <br />NA <br /><0.43 <br /><0.43 <br /><0.43 <br />NA <br /><0.30 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br />Vinyl Chloride <br />NA <br />NA <br /><0.47 <br /><0.47 <br /><0.16 <br />NA <br /><0.14 <br /><0.12 <br /><0.12 <br /><0.12 <br /><0.12 <br /><0.12 <br /><0.12 <br /><0.12 <br /><0.12 <br />Total Xylenes <br />NA <br />NA <br /><1.1 <br /><l.l <br /><0.53 <br />NA <br /><0.26 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br />Acetone <br /><1.8 <br /><2.7 <br /><3.0 <br /><3.0 <br /><7.4 <br />NA <br /><4.6 <br /><4.6 <br /><1.6 <br /><4.6 <br /><4.6 <br /><4.6 <br /><4.6 <br /><4.6 <br /><4.6 <br />Acrylonitrile <br />NA <br />NA <br /><0.89 <br /><0.84 <br /><1.5 <br />NA <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br /><1.2 <br />t -Amyl Alcohol <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><6.5 <br /><9.2 <br /><9.2 <br /><9.2 <br /><9.2 <br /><9.2 <br /><9.2 <br /><9.2 <br /><9.2 <br />t -Butyl Alcohol <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><9,4 <br /><9.4 <br /><9.4 <br /><9.4 <br /><9.4 <br /><9.4 <br /><9.4 <br /><9.4 <br /><9.4 <br />Carbon disulfide <br /><0.11 <br /><0.86 <br /><0.86 <br /><I.0 <br /><0.40 <br />NA <br /><0.35 <br /><0.38 <br /><0.38 <br /><0.38 <br /><0.38 <br /><0.38 <br /><0.38 <br /><0.38 <br /><0.38 <br />trans-1,4-Dichloro-2-butene <br />NA <br />NA <br /><1.3 <br /><0.73 <br />Q.4 <br />NA <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br /><1.4 <br />Diisopropyl ether <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.19 <br /><0.23 <br /><0.23 <br /><0.23 <br /><0.23 <br /><0.23 <br /><0.23 <br /><0.23 <br /><0.23 <br />Ethanol <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><45 <br /><50 <br /><50 <br /><50 <br /><50 <br /><50 <br /><50 <br /><50 <br /><50 <br />Ethyl -t -Butyl Ether <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br />Hexachloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.13 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br />2-Hexanone <br />NA <br />NA <br /><1.8 <br /><1.8 <br /><2.9 <br />NA <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br /><3.4 <br />2-Butanone (MEK) <br /><0.92 <br /><2.0 <br /><2.0 <br /><1.9 <br /><2.4 <br />NA <br /><2.5 <br /><2.5 <br /><2.5 <br /><2.5 <br /><2.5 <br /><2.5 <br /><25 <br /><2.5 <br /><2.5 <br />Iodomethane <br />NA <br />NA <br /><0.83 <br /><0.63 <br /><0.42 <br />NA <br /><0.44 <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.47 <br /><0.47 <br />4-Methyl-2-pentanone (MIBK) <br />NA <br />NA <br /><1.9 <br /><L9 <br /><3.4 <br />NA <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br /><2.1 <br />Vinyl Acetate <br />NA <br />NA <br /><0.85 <br /><0.80 <br /><2A <br />NA <br /><2.4 <br /><1.8 <br /><1.8 <br /><1.8 <br /><I.8 <br /><1.8 <br /><1.8 <br /><1.8 <br /><1.8 <br />1,3-Dichloropropane <br /><0.12 <br /><0.32 <br /><0.37 <br /><0.37 <br /><0.099 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />2,2-Dichloropropane <br />NA <br />NA <br /><0.39 <br /><0.44 <br /><0.14 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1-Dichloropropene <br />NA <br />NA <br /><0.38 <br /><0.47 <br /><0.18 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Acetonitrile <br />NA <br />NA <br />NA <br />NA <br /><6.3 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Acrolein <br />NA <br />NA <br /><4.5 <br /><4.5 <br /><8.9 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Allyl chloride <br />NA <br />NA <br />NA <br />NA <br /><0.42 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Chloroprene <br />NA <br />NA <br />NA <br />NA <br /><0.27 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Ethyl methacrylate <br />NA <br />NA <br />NA <br />NA <br /><1.0 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Isobutanol <br />NA <br />NA <br />NA <br />NA <br /><13 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Methacrylonitrile <br />NA <br />NA <br />NA <br />NA <br /><3.1 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Methyl methacrylate <br />NA <br />NA <br />NA <br />NA <br /><1.6 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Propionitrile <br />NA <br />NA <br />NA <br />NA <br /><13 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,1,2-Trichlorotriflouroethane <br />NA <br />NA <br /><0.61 <br /><0.78 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2,3-Trichlorobenzene <br />NA <br />NA <br /><0.37 <br /><0.37 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,2,4-Trimethylbenzene <br /><0.23 <br /><0.29 <br /><0.33 <br /><0.33 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,3,5-Trimethylbenzene <br /><0.20 <br /><0.32 <br /><0.39 <br /><0.39 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />2-Chlorotoluene <br />NA <br />NA <br /><0.33 <br /><0.33 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />4-Chlorotoluene NA NA <0.32 <0.32 NA NA NA NA NA NA NA NA NA NA NA <br />4-Isopropyltoluene NA NA <0.39 <0.39 NA NA NA NA NA NA NA NA NA NA NA <br />Bromobenzene NA NA <0.38 <0.34 NA NA NA NA NA NA NA NA NA NA NA <br />Isoproplybenzene <br />NA <br />NA <br /><0.39 <br /><0.39 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />m/p-Xylene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />n-Butylbenzene <br />NA <br />NA <br /><0.38 <br /><0.41 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />n-Propylbenzene <br />NA <br />NA <br /><0.33 <br /><0.38 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />sec-Butylbenzene <br />NA <br />NA <br /><0.40 <br /><0.41 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />tert-Butvlbenzene <br />NA <br />NA <br /><0.35 <br /><038 <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />