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® <br />Units mg/I unless noted <br /><0.17 <br />HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br />GROUNDWATER <br />FOOTHILL SANITARY LANAFâ–șLL <br />10 <br /><0.30 <br /><0.33 <br /><0.33 <br /><0.18 <br />NA <br />Sample Designation <br />Sampling Dale <br />MW -3 <br />7/27/06 <br />MW -3 <br />1/31/07 <br />MW -3 MW -3 MW -3 MW -3 <br />7/23/07 2/6/08 7/31/08 1/15/09 <br />MW -3 <br />8/18/09 <br />MW -3 MW -3 <br />10/8/09 11/2/09 <br />MW -3 <br />2/4/10 <br />MW -3 <br />9/2/10 <br />MW -3 <br />1/26/11 <br />MW -3 <br />4/13/11 <br /><0.37 <br />Monitoring and Field Parameters <br />General Water Quality Parameters <br /><0.35 <br />NA <br />NA <br /><0.23 <br /><0.24 <br /><0.24 <br />NM <br />_ <br />Bromodichloromethane <br />NA <br />NA <br />Temperature (°C) (field) <br />21.5 <br />16.8 <br />21,2 17.7 21.7 19.3 <br />20.4 <br />18.1 20.2 <br />17.2 <br />24.5 <br />19.8 <br />18.6 <br />NM <br />Chloride <br />10 <br />11 <br />9.6 9.58 9.21 9.73 <br />8.9 <br />NA NA <br />7.8 <br />8.2 <br />7.4 <br />NM <br /><0.23 <br />Nitrate -Nitrogen <br />3 <br />6 <br />2.9 2.87 2.61 2.92 <br />2.7 <br />NA NA <br />2.8 <br />2.9 <br />2.7 <br />NM <br /><0.21 <br />Total Dissolved Solids <br />229 <br />180 <br />200 140 130 220 <br />210 <br />NA NA <br />220 <br />230 <br />220 <br />NM <br />NA <br />Sulfate <br />6 <br />6.3 <br />6 6.41 6.04 6.51 <br />6.3 <br />NA NA <br />6.1 <br />6.1 <br />5.9 <br />NM <br /><0.16 <br />pH (std. units) (field) <br />7.14 <br />7.34 <br />7.22 7.32 7.26 7.68 <br />7.39 <br />7.28 7.24 <br />7.37 <br />7.55 <br />7.21 <br />7.49 <br /><0.093 <br />Electrical Conductivity (umhos/cm) (field) <br />341 <br />358 <br />258 378 254.9 270.4 <br />268.7 <br />274.3 277.3 <br />264.1 <br />259.3 <br />269.3 <br />407.3 <br />NA <br />Tvrhidity MTI n frwdl <br />12.7 <br />11.8 <br />11.3 11.3 7.7 7.64 <br />11.1 <br />28.3 16.3 <br />12.3 <br />11.6 <br />16.9 <br />13.9 <br /><0.33 <br />Volatile Organic Compounds fua <br />Benzene <br /><0.17 <br /><0.17 <br /><0.17 <br /><0.30 <br /><0.33 <br /><0.33 <br /><0.18 <br />NA <br />NA <br /><0.086 <br /><0.083 <br /><0.083 <br />NM <br />Bromochloromethane <br />NA <br />NA <br />NA <br />NA <br /><0.37 <br /><0.32 <br /><0.35 <br />NA <br />NA <br /><0.23 <br /><0.24 <br /><0.24 <br />NM <br />_ <br />Bromodichloromethane <br />NA <br />NA <br />NA <br />NA <br /><0.30 <br /><0.28 <br /><0.30 <br />NA <br />NA <br /><0.12 <br /><0.14 <br /><0.14 <br />NM <br />_ <br />Bromoform <br />NA <br />NA <br />NA <br />NA <br /><0.31 <br /><0.31 <br /><0.24 <br />NA <br />NA <br /><0.23 <br /><0.27 <br /><0.27 <br />NM <br />_ <br />Bromomethane <br />NA <br />NA <br />NA <br />NA <br /><0.40 <br /><0.33 <br /><0.21 <br />NA <br />NA <br /><0.20 <br /><0.25 <br /><0.25 <br />NM <br />_ <br />Carbon Tetrachloride <br />NA <br />NA <br />NA <br />NA <br /><0.46 <br /><0.46 <br /><0.19 <br />NA <br />NA <br /><0.18 <br /><0.18 <br /><0.18 <br />NM <br />Chlorobenzene <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.36 <br /><0.39 <br /><0.39 <br />NA <br />NA <br />NA <br /><0.081 <br /><0.093 <br /><0.093 <br />NM <br />Chloroethane <br /><0.23 <br /><0,23 <br /><0.23 <br /><0.38 <br /><0.38 <br /><0.31 <br /><0.25 <br />NA <br />NA <br /><0.11 <br /><0. 14 <br /><0.14 <br />NM <br />Chloroform <br /><0.20 <br /><0.20 <br /><0.20 <br /><0.33 <br /><0.33 <br /><0.33 <br /><0.23 <br />NA <br />NA <br /><0.072 <br /><0.12 <br /><0. 12 <br />NM <br />Chloromethane <br /><0.25 <br /><0.25 <br /><0.25 <br /><0.41 <br /><0.41 <br /><0.36 <br /><0.20 <br />NA <br />NA <br /><0.11 <br /><0.14 <br /><0. 14 <br />NM <br />Dibromochloromethane <br />NA <br />NA <br />NA <br />NA <br /><0.32 <br /><0.31 <br /><0.23 <br />NA <br />NA <br /><0.077 <br /><0.13 <br /><0.13 <br />NM <br />_ <br />1,2-Dibromo-3-chioropropene <br />NA <br />NA <br />NA <br />NA <br /><0.69 <br /><0.69 <br /><0.46 <br />NA <br />NA <br /><0.44 <br /><0.44 <br /><0.44 <br />NM <br />_ <br />1,2-Dibromoethane (EDB) <br />NA <br />NA <br />NA <br />NA <br /><0.39 <br /><0.39 <br /><0.29 <br />NA <br />NA <br /><0. 16 <br /><0.16 <br /><0.16 <br />NM <br />_ <br />Dibromomethane <br />NA <br />NA <br />NA <br />NA <br /><0.38 <br /><0.38 <br /><0.37 <br />NA <br />NA <br /><0. 19 <br /><0.24 <br /><0.24 <br />NM <br />_ <br />1,2 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br /><0.38 <br /><0.38 <br /><0.15 <br />NA <br />NA <br /><0,068 <br /><0.072 <br /><0.072 <br />NM <br />_ <br />1,3 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br /><0.37 <br /><0.37 <br /><0.15 <br />NA <br />NA <br /><0.060 <br /><0.15 <br /><0.15 <br />NM <br />1,4 -Dichlorobenzene <br /><0.14 <br /><0. 14 <br /><0. 14 <br /><0.34 <br /><0.38 <br /><0.38 <br /><0.16 <br />NA <br />NA <br /><0.083 <br /><0.062 <br /><0.062 <br />NM <br />NA <br />NA <br />NA <br />NA <br /><0.68 <br /><0.56 <br /><0.21 <br />NA <br />NA <br /><0.11 <br /><0.099 <br /><0.099 <br />NM <br />_Dichlorodifluoromethane <br />I, I -Dichloroethane <br />NA <br />NA <br />NA <br />NA <br /><0.37 <br /><0.34 <br /><0.13 <br />NA <br />NA <br /><0.081 <br /><0.11 <br /><0.I I <br />NM <br />_ <br />1,2-Dichloroethane (EDC) <br />NA <br />NA <br />NA <br />NA <br /><0.38 <br /><0.38 <br /><0.24 <br />NA <br />NA <br /><0. 14 <br /><0.17 <br /><0. 17 <br />NM <br />1,1-Dichloroethene <br /><0.39 <br /><0.39 <br /><0.39 <br /><0.43 <br /><0.43 <br /><0.29 <br />0.42" <br />NA <br />NA <br /><0.12 <br /><0.18 <br />0.55 <br />0.64 <br />NA <br />NA <br />NA <br />NA <br /><0.36 <br /><034 <br /><0.32 <br />NA <br />NA <br /><0.11 <br /><0.085 <br /><0.085 <br />NM <br />_cis-1,2-Dichloroethene <br />NA <br />NA <br />NA <br />NA <br /><0.41 <br /><0.33 <br /><0.14 <br />NA <br />NA <br /><0.097 <br /><0.15 <br /><0.15 <br />NM <br />_trans-l,2-Dichloroethene <br />1,2-Dichloropropme <br />NA <br />NA <br />NA <br />NA <br /><0.35 <br /><0.35 <br /><0.16 <br />NA <br />NA <br /><0.12 <br /><0.13 <br /><0.13 <br />NM <br />_ <br />NA <br />NA <br />NA <br />NA <br /><0.30 <br /><0.29 <br /><0. 19 <br />NA <br />NA <br /><0.098 <br /><0.14 <br /><0.14 <br />NM <br />_cis-1,3-Dichloropropene <br />NA <br />NA <br />NA <br />NA <br /><0.35 <br /><0.35 <br /><0.13 <br />NA <br />NA <br /><0.079 <br /><0.079 <br /><0.079 <br />NM <br />_trans-l,3-Dichloropropme <br />NA <br />NA <br />NA <br />NA <br /><0.43 <br /><0.43 <br /><0. 14 <br />NA <br />NA <br /><0. 12 <br /><0.098 <br /><0.098 <br />NM <br />_Ethylbenzene <br />Hexachlorobutadiene <br />NA <br />NA <br />NA <br />NA <br /><0.65 <br /><0.65 <br /><0.26 <br />NA <br />NA <br /><0.12 <br /><0.17 <br /><0. 17 <br />NM <br />Methylene Chloride <br /><0.48 <br /><0.48 <br /><0A8 <br /><0.30 <br /><0.30 <br /><0.29 <br /><0.28 <br />NA <br />NA <br /><0.28 <br /><0.48 <br /><0.48 <br />NM <br />Methyl ter -butyl ether <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.70 <br /><0,72 <br /><0.72 <br />NA <br />NA <br />NA <br /><0.11 <br /><0.11 <br /><0.11 <br />NM <br />Napthalene <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.29 <br /><0.36 <br /><0.36 <br /><0.30 <br />NA <br />NA <br /><0.36 <br /><0.36 <br /><0.36 <br />NM <br />NA <br />NA <br />NA <br />NA <br /><0.32 <br /><0.32 <br /><0.18 <br />NA <br />NA <br /><0.093 <br /><0.068 <br /><0.068 <br />NM <br />_Styrene <br />1,1,1,2 -Tetrachloroethane <br />NA <br />NA <br />NA <br />NA <br /><0.38 <br /><0.38 <br /><0.14 <br />NA <br />NA <br /><0.11 <br /><0.18 <br /><0.18 <br />NM <br />_ <br />1,1,2,2 -Tetrachloroethane <br />NA <br />NA <br />NA <br />NA <br /><0.35 <br /><0.35 <br /><0.28 <br />NA <br />NA <br /><0. 14 <br /><0.17 <br /><0. 17 <br />NM <br />Tetrachioroethene (PCE) <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.40 <br /><0.49 <br /><0.49 <br /><0.28 <br />NA <br />NA <br /><0.13 <br /><0.13 <br /><0.13 <br />NM <br />Toluene <br /><0.22 <br /><0.22 <br /><0.22 <br /><0.32 <br /><0.40 <br /><0.40 <br /><0. 12 <br />NA <br />NA <br /><0.093 <br /><0.093 <br /><0.093 <br />NM <br />1,2,4-Trichlorobenwne <br />NA <br />NA <br />NA <br />NA <br /><0.36 <br /><0.36 <br /><0.31 <br />NA <br />NA <br /><0. 17 <br /><0.19 <br /><0. 19 <br />NM <br />_ <br />1,1,1-Trichloroethene(TCA) <br />NA <br />NA <br />NA <br />NA <br /><0.39 <br /><0.46 <br /><0.14 <br />NA <br />NA <br /><0.081 <br /><0.11 <br /><0.11 <br />NM <br />1,1,2 -Trichloroethane <br />NA <br />NA <br />NA <br />NA <br /><0.44 <br /><0.44 <br /><0.44 <br />NA <br />NA <br /><0.21 <br /><0.16 <br /><0.16 <br />NM <br />Trichloroethene(TCE) <br />0.18" <br /><0. 13 <br />0.6 <br /><0.31 <br /><0.38 <br /><0.38 <br />1 <br />NA <br />NA <br /><0. 13 <br />0.3 <br />1.2 <br />1.2 <br />NA - <br />NA <br />NA <br />NA <br /><0.59 <br /><0.47 <br /><0.22 <br />NA <br />NA <br /><0.11 <br /><0.13 <br /><0.13 <br />NM <br />_Trichlorofluoromethane <br />1,2,3-Trichloropropane <br />NA <br />NA <br />NA <br />NA <br /><0.43 <br /><0.43 <br /><0.43 <br />NA <br />NA <br /><0.30 <br /><0.24 <br /><0.24 <br />NM <br />_ <br />Chloride <br />NA <br />NA <br />NA <br />NA <br /><0A7 <br /><0.47 <br /><0.16 <br />NA <br />NA <br /><0.14 <br /><0.12 <br /><0.12 <br />NM <br />-Vinyl <br />Total Xylenes <br />NA <br />NA <br />NA <br />NA <br /><1.1 <br /><1.1 <br /><0.53 <br />NA <br />NA <br /><0.26 <br /><0.36 <br /><0.36 <br />NM <br />Acetone <br /><I.8 <br />6^ <br />6.6" <br /><2.7 <br /><3.0 <br /><3.0 <br /><7.4 <br />NA <br />NA <br /><4.6 <br /><4.6 <br /><4.6 <br />NM <br />n:\consulting\data\shared\projmts\xls\gmr\79\791289\FH-Hist (2).xis <br />