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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 /> I <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> I <br />' Date: 06/14/98-06/15/98 Matrix: WATER <br />' I I Concentration (ug/kg,u1 I Recovery 1 <br /> Analyte I Sample I Amount I RPD <br /> 1 (#90334) MS MSD I Spiked I MS MSD 1 <br /> 1 I I I 1 l <br /> 11, 1-Dichloroethel 0 92 90 I 100 92 90 2 . 2 1 <br />' ITrichloroethene 1 0 92 89 1 100 I 92 89 3 .3 <br /> IEDB I N/A N/A N/A 1 N/A I N/A N/A N/A <br /> IChlorohenzene 1 0 94 92 1 100 1 94 92 2 . 2 1 <br />' (Benzene 1 0 97 94 1 100 1 97 94 3 .1 I <br /> IToluene 1 0 87 84 1 100 1 87 84 3 . 5 1 <br /> I I I 1 1 <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / ('MS + MSD) x 2 X 100 <br />