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Entech Analytical Labs, Inc. <br /> 3334 Victor Court • Santa Clara, CA 95054 * (408) 588-0200 • Fax (408) 588-0201 <br /> Quality Control Results Summary <br /> QC Batch#: WMS21083B Units: µg/L <br /> Matrix: Liquid Date Analyzed: 7/6101 <br /> Parameter Method Blank Spike Spike Sample Spike QC Type %Recovery RPD RPD Recovery <br /> Result Sample 1D Amount Result Result Limits Limits <br /> 4' Test: EPA 826011 <br /> 1,1-Dichloroethene EPA 8260B ND 20 18.7 LCS 93.5 65.4-135.0 <br /> Benzene EPA 8260B ND 20 21.3 LCS 106.5 65.0-135.0 <br /> Chlorobenzene EPA 82608 ND 20 19.8 LCS 99.0 65.0-135.0 <br /> Methyl-t-butyl Ether EPA 8260B ND 20 19.3 LCS 96.5 65.0-135.0 <br /> Toluene EPA 8260B ND 20 20.6 LCS 103.0 65.0-135.0 <br /> i' Trichloroethene EPA 8260B ND 20 21.4 LCS 107.0 65.0-135.0 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> 4-Bromofluorobenzene 107 65 - 135 <br /> Dibromofluoromethane 87 57 - 139 <br /> Toluene-d8 79 65 135 <br /> Test: EPA 8260B <br /> 1,1-11ichloroethene EPA 826011 ND 20 17.4 LCSD 87.0 7.20 25.00 65.0-135.0 <br /> Benzene EPA 82608 ND 20 20.2 LCSD 101.0 5.30 25.00 65.0-135.0 <br /> Chlorobenzene EPA 82608 ND 20 18.7 LCSD 93.5 5.71 25.00 65.0-135.0 <br /> Methyl-t-butyl Ether EPA 826011 ND 20 19.1 LCSD 95.5 1.04 25.00 65.0-135.0 <br /> Toluene EPA 8260B ND 20 18.9 LCSD 94.5 8.61 25.00 65.0-135.0 <br /> Trichloroethene EPA 8260B ND 20 20.3 LCSD 141.5 5.28 25.00 65.4-135.0' <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> 4-Bromofluorobenzene 107 65 135 <br /> Dibromofluoromethane 89 57 - 139 <br /> Toluene-d8 78 65 - 135 <br /> �r <br /> i <br /> 1 <br /> Environmental Analysis Since 1983 <br />