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' 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br />' QC REPORT FOR VOCs (EPA 8240/8260 ) <br />' Date 07/07/97-07/08/97 Matrix Water <br />' ! I Concentration {ug/kg,ul I % Recovery <br /> Analyte Amount RPD <br />' Sample MS MSD Spiked MS MSD <br /> 11, 1-Dzchloroethel 0 0 92 0 89 0 ! 100 92 89 3 3 <br />' Trichloroethene f 0 0 83 0 83 0 100 83 83 0 0 <br /> EDB I C 0 90 0 86 0 100 90 86 4 5 <br /> IChlorobenzene 1 0 0 102 0 101 0 100 102 101 1 0 <br />' jBenzene 1 0 0 110 0 110 0 100 110 1.10 0 0 <br /> IToluene I 0 0 103 C 104 0 100 103 104 1 0 <br /> Rec = (MS - Sample) / amount spi ea x 100 <br /> RPD = ;MS - MSD) / I4S + MSD) x 2 v -DO <br /> • <br />