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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 /> 1 <br /> QC Batch# WMS2010426 Units. µg/L <br />' Matrix Liquid Date Analyzed 4/26/01 <br /> Parameter Method Blank Spike Spike Sample Spike QC Type %Recovery RPD RPD Recovery <br />' Result Sample ID Amount Result Result Limits Limits <br /> Test EPA 8260B <br /> 1,1-Dichloroethene EPA 8260B ND 20 175 LCS 875 650-1350 <br />' Benzene EPA 8260B ND 20 183 LCS 91 5 650-1350 <br /> Chlorobenzene EPA 8260B ND 20 184 LCS 920 650-1350 <br /> Methyl-t-butyl Ether EPA 8260B ND 20 157 LCS 785 650-1350 <br />' Toluene EPA 11260B ND 20 187 LCS 935 650-1350 <br /> Trichloroethene EPA 8260B ND 20 184 LCS 92 0 650-1350 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> 4-Bromofluarobenzene 98 65 - 135 <br />' Dibromofluoromethane 93 57 - 139 <br /> Toluene-d8 99 65 - 135 <br /> Test. EPA 8260B <br />' 1,1-Dichioroethene EPA 8260B ND 20 164 LCSD 820 649 2500 650- 1350 <br /> Benzene EPA 8260B ND 20 178 LCSD 890 2 77 2500 650-135 0 <br /> Chlorobenzene EPA 8260B ND 20 182 LCSD 91 0 109 25 00 650-135 0 <br /> Methyl-t-butyl Ether EPA 8260E ND 20 146 LCSD 730 726 2500 650-1350 <br /> Toluene EPA 8260B ND 20 183 LCSD 91 5 2 16 2500 650-1350 <br /> Trichloroethene EPA 8260B ND 20 181 LCSD 905 1 64 2500 650-1350 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> 4-Bromofluorobenzene 94 65 - 135 <br /> Dibromofluoromethane 95 57 - 139 <br /> Toluene-d8 98 65 - 135 <br /> I <br /> 6 <br /> I <br /> lEnvironmental Analysis Since 1983 <br />