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Ma ter M w man M m m r MM M M M M M M <br />HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />FOOTHILL SANITARY LANDFILL <br />LW -1 <br />Units: mg/l, unless noted <br />Sample Designation LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 LW -1 <br />Sampling Date 7/5/94 11/28/94 5/30/03 8/14/03 1/22/04 7/21/04 2/2/05 7/27/05 3/28/06 7/27/06 1/31/07 7/23/07 2/5/08 7/30/08 1/15/09 8/17/09 10/7/09 2/4/10 9/2/10 <br />Monitoring and Field Parameters <br />pH (std. units) (field) <br />7.82 <br />7.68 <br />7.57 <br />6.86 <br />6.94 <br />7.14 <br />7.03 <br />7.21 <br />6.81 <br />6.8 <br />7.23 <br />7.27 <br />7.12 <br />7.37 <br />7.81 <br />7.37 <br />7.3 <br />7.12 <br />6.97 <br />Electrical Conductivity (umhos/cm) (field) <br />300 <br />313 <br />269 <br />171 <br />174 <br />119.7 <br />212 <br />98 <br />143 <br />146 <br />413 <br />245 <br />345 <br />275.5 <br />272.1 <br />148.9 <br />273.3 <br />278.3 <br />293.1 <br />Temperature (°C) (field) <br />Turbidity (NTU) (field) <br />NA <br />NA <br />17.3 <br />1.6 <br />21.2 <br />0.6 <br />19.1 <br />2.7 <br />14.7 <br />3.74 <br />21.6 <br />7.31 <br />16.1 <br />4.7 <br />20.4 <br />6.6 <br />14.9 <br />NA <br />19.6 <br />6.1 <br />17.6 <br />18.9 <br />21 <br />NA <br />18.1 <br />16.4 <br />21 <br />9.7 <br />20.3 <br />8.64 <br />19.1 <br />6.7 <br />19.6 <br />9.4 <br />19.1 <br />10.4 <br />23.6 <br />12.3 <br />Chloride <br />14 <br />9.5 <br />10 <br />12 <br />6.6 <br />11 <br />9 <br />11 <br />8.4 <br />11 <br />8.8 <br />9 <br />8.89 <br />9.5 <br />9.14 <br />(8.2) <br />NA <br />7.6 <br />8.5 <br />Nitrate -Nitrogen <br />1.1 <br />1.2 <br />1.3 <br />1.3 <br />3.3 <br />1.1 <br />1.4 <br />1.1 <br />1.1 <br />1 <br />1.2 <br />1 <br />1.13 <br />1 <br />0.94 <br />1.1 <br />NA <br />1.1 <br />1.0 <br />Total Dissolved Solids <br />240 <br />182 <br />190 <br />180 <br />200 <br />210 <br />180 <br />200 <br />199 <br />228 <br />170 <br />190 <br />170 <br />230 <br />200 <br />220 <br />NA <br />220 <br />220 <br />Sulfate <br />16 <br />15 <br />16 <br />19 <br />5.5 <br />16 <br />15 <br />16 <br />14 <br />16 <br />14 <br />14 <br />14.7 <br />15.8 <br />14.85 <br />14 <br />NA <br />14 <br />14 <br />Calcium <br />Potassium <br />Magnesium <br />Sodium <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />28 <br /><0.92 <br />9.8 <br />9.8 <br />24 <br /><0.92 <br />9.9 <br />12 <br />23 <br />3.6 <br />10 <br />12 <br />23 <br />4.0 <br />9.8 <br />12 <br />23.9 <br />4.8 <br />10.0 <br />12.4 <br />27.4 <br />102 <br />4.6 <br />12.8 <br />29.7 <br />13.2 <br />5.7 <br />14.6 <br />29.2 <br />11.6 <br />4.6 <br />13.9 <br />24 <br />10.0 <br />4.7 <br />13 <br />25 <br />4.7 <br />10 <br />13 <br />24 <br />4.2 <br />11 <br />13 <br />24 <br />4.4 <br />11 <br />12 <br />24 <br />4.7 <br />11 <br />12 <br />25 <br />4.6 <br />11 <br />13 <br />NA <br />NA <br />NA <br />NA <br />24 <br />4.5 <br />11 <br />13 <br />25 <br />4.5 <br />11 <br />14 <br />Volatile Organic Compounds (ugd) <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 /><0.38 <br /><0.38 <br /><0.15 <br />NA <br /><0.068 <br /><0.072 <br />Benzene <br />NA <br />NA <br /><0.28 <br /><0.28 <br /><0.28 <br /><028 <br /><0.17 <br /><0.17 <br /><0.17 <br /><0.17 <br /><0.17 <br /><0.17 <br /><0.30 <br /><0.33 <br /><0.33 <br /><0.18 <br />NA <br /><0.086 <br /><0.083 <br />Bromochloromethane <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 /><0.37 <br /><0.32 <br /><0.35 <br />NA <br /><0.23 <br /><0.24 <br />Bromodichloromethane <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 /><0.30 <br /><0.28 <br /><0.30 <br />NA <br /><0.12 <br /><0.14 <br />Bromoform <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 /><0.31 <br /><0.31 <br /><0.24 <br />NA <br /><0.23 <br /><0.27 <br />Bromomethane <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 /><0.40 <br /><0.33 <br /><0.21 <br />NA <br /><0.20 <br /><0.25 <br />Carbon Tetrachloride <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 /><0.46 <br /><0.46 <br /><0.19 <br />NA <br /><0.18 <br /><0.18 <br />Chlorobenzene <br />NA <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.16 <br /><0.36 <br /><0.39 <br /><0.39 <br />NA <br />NA <br /><0.081 <br /><0.093 <br />Chloroethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.2 <br /><0.38 <br /><0.38 <br /><0.31 <br /><0.25 <br />NA <br /><0.11 <br /><0.14 <br />Chloroform <br />NA <br />NA <br /><0.37 <br /><0.37 <br /><0.37 <br /><0.37 <br /><0.20 <br /><0.20 <br /><0.20 <br /><0.20 <br /><0.20 <br /><0.20 <br /><0.33 <br /><0.33 <br /><0.33 <br /><0.23 <br />NA <br /><0.072 <br /><0.12 <br />Chloromethane <br />NA <br />NA <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.18 <br /><0.25 <br /><0.25 <br /><0.25 <br /><0.25 <br /><0.25 <br /><0.25 <br /><0.41 <br /><0.41 <br /><0.36 <br /><0.20 <br />NA <br /><0.11 <br /><0.14 <br />Dibromochloromethane <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 /><0.32 <br /><0.31 <br /><0.23 <br />NA <br /><0.077 <br /><0.13 <br />1,2-Dibromo-3-chloropropane <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 /><0.69 <br /><0.69 <br /><0.46 <br />NA <br /><0.44 <br /><0.44 <br />1,2-Dibromoethane (EDB) <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 /><0.39 <br /><0.39 <br /><0.29 <br />NA <br /><0.16 <br /><0.16 <br />Dibromomethane <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 /><0.38 <br /><0.38 <br /><0.37 <br />NA <br /><0.19 <br /><0.24 <br />1,2 -Dichlorobenzene <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 /><0.38 <br /><0.38 <br /><0.15 <br />NA <br /><0.068 <br /><0.072 <br />1,3 -Dichlorobenzene <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 /><0.37 <br /><0.37 <br /><0.15 <br />NA <br /><0.060 <br /><0.15 <br />1,4 -Dichlorobenzene <br />NA <br />NA <br /><0.46 <br /><0.46 <br /><0.46 <br /><0.46 <br /><0.14 <br /><0.14 <br /><0.14 <br /><0.14 <br /><0.14 <br /><0.14 <br /><0.34 <br /><0.38 <br /><0.38 <br /><0.16 <br />NA <br /><0.083 <br /><0.062 <br />Dichlorodifluoromethane <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 /><0.68 <br /><0.56 <br /><0.21 <br />NA <br /><0.11 <br /><0.099 <br />1,1-Dichloroethane <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 /><037 <br /><0.34 <br /><0.13 <br />NA <br /><0.081 <br /><0.11 <br />1,2-Dichloroethane (EDC) <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 /><0.38 <br /><0.38 <br /><0.24 <br />NA <br /><0.14 <br /><0.17 <br />1,1-Dichloroethene <br />NA <br />NA <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.39 <br /><0.39 <br /><0.39 <br /><0.39 <br /><0.39 <br /><039 <br /><0.43 <br /><0.43 <br /><0.29 <br /><0.16 <br />NA <br /><0.12 <br /><0.18 <br />cis-1,2-Dichloroethene <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 /><0.36 <br /><0.34 <br /><0.32 <br />NA <br /><0.11 <br /><0.085 <br />trans-1,2-Dichloroethene <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 /><0.41 <br /><0.33 <br /><0.14 <br />NA <br /><0.097 <br /><0.15 <br />1,2-Dichloropropane <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 /><0.35 <br /><0.35 <br /><0.16 <br />NA <br /><0.12 <br /><0.13 <br />cis-1,3-Dichloropropene <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 /><0.30 <br /><0.29 <br /><0.19 <br />NA <br /><0.098 <br /><0.14 <br />trans- 1,3 -Dichloropropene <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 /><0.35 <br /><0.35 <br /><0.13 <br />NA <br /><0.079 <br /><0.079 <br />Ethylbenzene <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 /><0.43 <br /><0.43 <br /><0.14 <br />NA <br /><0.12 <br /><0.098 <br />Hexachlorobutadiene <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 /><0.65 <br /><0.65 <br /><0.26 <br />NA <br /><0.12 <br /><0.17 <br />Methylene Chloride <br />NA <br />NA <br /><0.23 <br />{0.28-) <br /><0.23 <br /><0.23 <br /><0.48 <br /><0.48 <br /><0.48 <br /><0.48 <br /><0.48 <br /><0.48 <br /><0.30 <br /><0.30 <br /><0.29 <br /><0.28 <br />NA <br /><0.28 <br /><0.48 <br />Methyl ter -butyl ether <br />NA <br />NA <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.70 <br /><0.72 <br /><0.72 <br />NA <br />NA <br /><0.11 <br /><0.11 <br />Napthalene <br />NA <br />NA <br /><0.93 <br /><0.93 <br /><0.93 <br /><0.93 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.29 <br /><0.36 <br /><0.36 <br /><0.30 <br />NA <br /><0.36 <br /><0.36 <br />Styrene <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 /><0.32 <br /><0.32 <br /><0.18 <br />NA <br /><0.093 <br /><0.068 <br />1,1,1,2 -Tetrachloroethane <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 /><0.38 <br /><0.38 <br /><0.14 <br />NA <br /><0.11 <br /><0.18 <br />1,1,2,2 -Tetrachloroethane <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 /><0.35 <br /><0.35 <br /><0.28 <br />NA <br /><0.14 <br /><0.17 <br />Tetrachloroethene (PCE) <br />NA <br />NA <br /><0.44 <br /><0.44 <br /><0.44 <br /><0.44 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.19 <br /><0.40 <br /><0.49 <br /><0.49 <br /><0.28 <br />NA <br /><0.13 <br /><0.13 <br />Toluene <br />NA <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.22 <br /><0.22 <br /><0.22 <br /><0.22 <br /><0.22 <br /><0.22 <br /><0.32 <br /><0.40 <br /><0.40 <br /><0.12 <br />NA <br /><0.093 <br /><0.093 <br />n:\consulting\data\shared\projectsWs\qmr\79\791289\FH-Hist.xls <br />