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f — <br /> McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br />' TeIe 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ? <br /> 1 <br />' Date 09/14/98 Matrix WATER <br />' I Concentration (ug/kg,ul Recovery <br /> Analyte I Sample I Amount l RPD l <br /> 1 (#94788) MS MSD Spiked l MS MSD <br /> 11, 1-Dichloroethel 0 77 82 100 I 77 82 7 3 1 <br />' ITrzchloroethene l 0 76 79 100 76 79 3 7 <br /> IEDB l 0 91 97 I 100 91 97 6 0 <br /> IChlorobenzene 0 92 96 100 l 92 96 4 9 l <br /> lBenzene I 0 86 92 100 l 86 92 7 1 l <br />' Toluene l 0 85 91 ! 100 l 85 91 6 9 l <br /> I <br />' V Rec - (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS ♦ MSA) x 2 x 100 <br /> I <br />