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1 <br /> ar� o� laboratories <br />' QUALITY CONTROL DATA <br /> METHOD EPA 8260B <br /> AL Job No D12491 <br />' Instrument HP GC/MS <br /> Matrix Water <br />' Surrogate Standard Recovery Summary <br /> Date Analyzed Client ID Lab ID %Recovery %Recovery Toluene- %Recovery 4- <br /> DibromoRuoromethane d8 Bromofluorobenzene <br />' 12/18103 Blank BLKD1218 111 98 94 <br /> 12/18/03 EFF D12491 111 109 86 <br /> 12/18/03 C1 D12492 112 107 100 <br />' 12/18/03 C2 D12493 117 104 92 <br /> I • <br /> I <br /> I <br /> Matrix Spike Recovery Summary <br /> ILab ID Client ID Analyte Percent Recovery %RPD %LCS <br /> MS 1 MSD <br /> D12493 C2 1,1-Dichloroethene 95196 1 95 <br /> Benzene 1121110 2 109 <br /> Trichloroethene 991102 3 103 <br /> IToluene 96196 0 98 <br /> Chlorobenzene 96190 6 94 <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 />