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C <br />L, <br />AL Job No: F04411 <br />Instrument: HP GC/MS <br />Matrix: Soil <br />argon . •o ! <br />QUALITY CONTROL DATA <br />METHOD: EPA 82608 <br />Surrogate Standard Recovery Summary <br />04/18/05 <br />Blank <br />BLKC0418 <br />% Recovery <br />% Recovery Toluene- <br />% Recovery 4- <br />Date Analyzed <br />Client ID <br />Lab ID <br />133 <br />100 <br />I <br />04/18/05 <br />SP2 (A,B) <br />F04412 <br />Dibromofluoromethane <br />d8 <br />Bromofluorobenzene <br />04/18/05 <br />Blank <br />BLKC0418 <br />117 <br />102 <br />96 <br />04/18/05 <br />SPI (A,B,C,D) <br />F04411 <br />133 <br />100 <br />72 <br />04/18/05 <br />SP2 (A,B) <br />F04412 <br />158 <br />99 <br />51 (q) <br />04/18/05 <br />SP3 (A, B) <br />F04413 <br />142 <br />95 <br />45 (q) <br />Matrix Spike Recovery Summary <br />Lab ID Client ID Analyte Percent Recovery % RPD %LCS <br />MS I MSD <br />F04313 MW -2 1,1-Dichloroethene <br />113 / 110 <br />3 <br />116 <br />Benzene <br />105 / 98 <br />7 <br />110 <br />Trichloroethene <br />104 / 96 <br />8 <br />108 <br />Toluene <br />96 / 91 <br />5 <br />101 <br />Chlorobenzene <br />98 / 92 <br />6 <br />102 <br />Note: Daily method blank showed no contamination at or above the reporting limits. <br />(q): Surogate Recovery outside QC limis due to matrix interference. <br />2905 Roilrood Avenue, Ceres, CA 953.07 • Phone (209) 581-9280 • Fox (209) 581-9282 <br />emoi : info@c,-on!obs.com <br />