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110 2nd Avenue South,#137,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: 04/13/98 Matrix: WATER <br /> Concentration (ug/kg,ul Recovery <br /> Analyte Sample I Amount RPD <br /> 1 (#87966) MS MSD Spiked MS MSD <br /> 11, 1-Dichloroethel 0 72 78 1 100 72 78 8.0 <br /> Trichloroethene 0 71 75 1 100 71 75 5.5 <br /> IEDB I N/A N/A N/A I N/A I N/A N/A N/A <br /> IChlorobenzene 0 95 100 1 100 1 95 100 5.1 , <br /> Benzene 0 100 106 100 100 106 5.8 <br /> Toluene I 0 95 101 100 95 101 6.1 <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> r <br />