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I <br /> 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 10/31/97 Matrix WATER <br />' I Concentration (ug/kg,ul I % Recovery f <br /> I Analyte I Sample I Amount I RPD 1 <br /> l 1 # ($2070) MS MSD I Spiked I MS MSD 1 <br /> I 1 <br /> 11, 1-Dzchloroethel 0 109 0 105 0 1 100 0 1 109 105 3 7 1 <br />' 1Trichloroethene l 0 92 0 95 0 1 100 0 1 92 95 3 2 1 <br /> 1EDB l 0 95 0 98 0 1 100 0 1 95 98 3 1 1 <br /> 1Chlorobenzene l 0 101 0 101 0 1 100 0 1 101 101 0 0 1 <br /> lBenzene l 0 99 0 101 0 1 100 0 1 99 101 2 0 1 <br />' IToluene l 0 100 0 101 0 1 100 0 1 100 101 1 0 1 <br /> I I I I <br /> N <br />' Rec (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / tMS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />