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• <br /> aU@a laboratories <br />' QUALITY CONTROL DATA <br /> METHOD EPA 8260B <br /> AL Job No D05291 <br />' Instrument HP GC/MS <br /> Matrix Water/Soil <br /> ISurrogate Standard Recovery Summary <br /> Date Analyzed Client ID Lab ID %Recovery %Recovery Toluene- %Recovery 4- <br />' Dibromoftuoromethane d8 Bromofluorobenzene <br /> 05/23/03 Blank BLKDO523 105 101 110 <br /> 05123/03 GASB9-27 D05291 113 i 101 113 <br /> 05/23103 GASB9-30 GW ID05292 1 113 1 103 1 110 <br />' 05123/03 GASB9-50 ID05293 1 113 1 101 108 <br /> I <br /> I <br /> I <br /> I <br /> Matrix Spike Recovery Summary <br />' Lab ID Client ID Analyte Percent Recovery %RPD %LCS <br /> MS I MSD <br /> ID05202 GA SB10-25 GW 1,1-Dichloroethene 106 1 96 10 100 <br /> Benzene 112 1 101 11 107 <br /> I <br /> Trichloroethene 115 1 100 15 106 <br /> Toluene 114 1 102 12 108 <br /> Chlorobenzene 114 1 98 16 106 <br /> I <br /> • Note Daily method blank showed no contamination at or above the reporting limits <br /> All laboratory quality control parameters were found to be within established limits <br /> 3037 Fifth St , Ceres, CA 95307 • Phone (209) 581-9280 Fax {209) 581-9282 <br />