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®®®®® M M A M®®® s M M <br />HISTORICAL SUMMARY OF ANALYTICA <br />GROUNDWATER <br />FOOTHILL SANITARY LANAFILL <br />MW -3 <br />Units: mg/1, unless noted <br />Sample Designation MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 MW -3 <br />Sampling Date 10/20/99 3/8/00 5/11/00 7/13/00 1/22/04 1/15/01 4/30/01 8/2/01 10/29/01 2/6/02 4/30/02 8/1/02 10/14/02 1/29/03 5/30/03 8/14/03 1/21/04 7/22/04 2/2/05 <br />Monitoring and Field Parameters <br />pH (std. units) (field) <br />7.9 <br />7.36 <br />7.8 <br />8.23 <br />7.41 <br />7.01 <br />6.6 <br />7.11 <br />6.36 <br />6.8 <br />6.94 <br />7.06 <br />6.72 <br />6.69 <br />7.58 <br />7,02 <br />7.32 <br />7.26 <br />6.88 <br />Electrical Conductivity (umhos/cm) (field) <br />270 <br />264 <br />273 <br />272 <br />272 <br />316 <br />600 <br />190 <br />610 <br />210 <br />290 <br />300 <br />250 <br />377 <br />273 <br />274 <br />207 <br />269 <br />290 <br />Temperature (°C) (field) <br />21.5 <br />17.3 <br />20.5 <br />21.7 <br />20 <br />23.7 <br />19.3 <br />20.8 <br />19.1 <br />16.9 <br />18.8 <br />20.6 <br />20.3 <br />16.1 <br />21.3 <br />19.6 <br />14.4 <br />21.6 <br />16.9 <br />Turbidity (NTU) (field) <br />>200 <br />3.3 <br />0.33 <br />0.55 <br />0.21 <br />2.35 <br />12.1 <br />7.2 <br />17.1 <br />6.3 <br />3.7 <br />3.7 <br />6.7 <br />3.1 <br />0.6 <br />6.7 <br />14.7 <br />7.81 <br />10.6 <br />Chloride <br />9.61 <br />9.7 <br />9.73 <br />9.6 <br />9.96 <br />12 <br />9.76 <br />9 <br />11 <br />12 <br />9.3 <br />10 <br />11 <br />11 <br />NA <br />11 <br />11 <br />11 <br />10 <br />Nitrate -Nitrogen <br />3.5 <br />3.21 <br />3.45 <br />3.36 <br />3.5 <br />3.64 <br />3.48 <br />3 <br />3.5 <br />4 <br />3.5 <br />3.8 <br />3.2 <br />3.8 <br />NA <br />3.8 <br />3.8 <br />3.6 <br />3.2 <br />Total Dissolved Solids <br />220 <br />202 <br />204 <br />188 <br />196 <br />191 <br />199 <br />200 <br />220 <br />190 <br />200 <br />190 <br />210 <br />190 <br />NA <br />190 <br />210 <br />210 <br />190 <br />Sulfate <br />6.57 <br />7.24 <br />6.98 <br />7.62 <br />7.19 <br />7.66 <br />7.00 <br />6.9 <br />8.8 <br />10 <br />6.4 <br />6.7 <br />6.2 <br />7 <br />NA <br />7.6 <br />7.7 <br />6.8 <br />6 <br />Volatile Organic Compounds (ugd) <br />Benzene <br /><0.04 <br /><0.05 <br /><0.04 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.05 <br /><0.14 <br /><0.05 <br /><0.05 <br /><0.20 <br /><0.28 <br />NA <br /><0.28 <br /><0.28 <br /><0.28 <br /><0.17 <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Bromofonn <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 />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Chlorobenzene <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.16 <br /><0.07 <br /><0.07 <br /><0.2 <br /><0.32 <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.16 <br />Chloroethane <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 />NA <br />NA <br />NA <br />NA <br />Chloroform <br /><0.06 <br /><0.07 <br /><0.06 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.18 <br /><0.07 <br /><0.07 <br /><0.3 <br /><0.37 <br />NA <br /><0.37 <br /><0.37 <br /><0.37 <br /><0.20 <br />Chloromethane <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.14 <br /><03 <br /><0.18 <br />NA <br />(0.22*) <br /><0.18 <br /><0.18 <br />{0.28*} <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1,4 -Dichlorobenzene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.18* <br /><0.11 <br /><0.23 <br /><0.11 <br /><0.11 <br />0.8 <br /><0.46 <br />NA <br /><0.46 <br /><0.46 <br /><0.46 <br /><0.14 <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />1, 1 -Dichloroethene <br /><0.04 <br /><0.04 <br />0.285* <br />0.0795* <br />0.0688* <br />0316* <br />0.217* <br /><0.06 <br /><0.06 <br /><0.12 <br /><0.06 <br /><0.06 <br /><0.2 <br /><0.24 <br />NA <br /><0.24 <br /><0.24 <br /><0.24 <br /><0.39 <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Methylene Chloride <br /><0.03 <br />2.43 <br /><0.03 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br /><0.06 <br />{1.9} <br /><0.06 <br /><0.06 <br /><0.3 <br /><0.23 <br />NA <br />{0.28*} <br /><0.23 <br /><0.23 <br /><0.48 <br />Methyl ter -butyl ether <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.08 <br /><0.08 <br /><0.08 <br /><0.18 <br /><0.08 <br /><0.08 <br />1.4 <br /><0.36 <br />NA <br /><0.36 <br /><0.36 <br /><0.36 <br /><0.32 <br />Napthalene <br />NA <br />NA <br />NA <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.1 <br /><0.46 <br /><0.1 <br /><0.10 <br /><0.3 <br /><0.93 <br />NA <br /><0.93 <br /><0.93 <br /><0.93 <br /><0.24 <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <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 />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />Tetrachloroethene (PCE) <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br />0.086* <br /><0.08 <br /><0.22 <br /><0.08 - <br /><0.08 <br /><0.3 <br /><0.44 <br />NA <br /><0A4 <br /><0.44 <br /><0.44 <br /><0.19 <br />Toluene <br />NA <br />NA <br />NA <br />NA <br />NA <br />NA <br /><0.07 <br /><0.07 <br /><0.07 <br /><0.16 <br /><0.07 <br /><0.07 <br /><0.2 <br /><0.32 <br />NA <br /><0.32 <br /><0.32 <br /><0.32 <br /><0.22 <br />1,2,4-Trichlorobenzene <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 />NA <br />NA <br />NA <br />NA <br />1,1,1-Trichloroethane(TCA) <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 />NA <br />NA <br />NA <br />NA <br />1,1,2 -Trichloroethane <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 />NA <br />NA <br />NA <br />NA <br />n:\consulting\data\shared\projectsbds\qmr\79\791289\FH-Hist.xls <br />