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laboratories <br /> QUALITY CONTROL DATA <br /> METHOD: EPA 8260B <br /> AL Job No: F04291 <br /> Instrument:HP GC/MS <br /> Matrix:Soil <br /> Surrogate Standard Recovery Summary <br /> Date Analyzed Client ID Lab ID <br /> Recovery %Recovery Toluene- %Recovery 4- <br /> Dibromofluoromethane d8 Bromofluorobenzene <br /> 04/11/05 Blank BLKF0411 108 103 93 <br /> 04/11/05 BM P-1 3' F04291 124 103 96 <br /> 04/11/05 BM Pit 2 4' F04292 121 102 92 <br /> 04/11/05 BM T1 7' F04293 128 103 85 <br /> 04/11/05 BM D-1 6.5' F04294 119 102 94 <br /> 04/11/05 BM LL-1 3' F04295 120 102 96 <br /> 04/11/05 BM LL-2 3' F04296 120 101 81 <br /> Matrix Spike Recovery Summary <br /> Lab ID Client ID Analyte Percent Recovery %RPD %LCS <br /> MS / MSD <br /> F04291 BM P-1 3' 1,1-Dichloroethene 97 / 97 0 98 <br /> Benzene 101 / 101 0 103 <br /> Trichloroethene 98 / 97 1 99 <br /> Toluene 99 / 98 1 97 <br /> Chlorobenzene 99 / 95 4 98 <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 /> 2905 Roilroocl Avenue, Cores, CA 95307 • Phone (209) 581 -9280 • Fox (209) 581 -9282 <br /> emoil: info@orgonlobs.com <br />