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McCAMPBELL ANALYTICAL INC110 2nd Avenue South, #137,Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR VOCs (EPA 8240/8260 ) <br /> Date 08/13/97 Matrix Soil <br /> Concentration (ug/kg,ul I % Recovery <br /> Analyte Sample I Amount I RPD <br /> ## (75$65) MS MSD I Spiked I MS MSD <br /> 11, 1-Dichloroethel 0 0 100 0 97 0 1 100 1 100 97 3 0 <br /> Trichloroethene 1 0 0 83 0 83 0 100 1 83 83 0 0 <br /> EDB 1 0 0 95 0 89 0 100 1 95 89 6 5 <br /> IChlorobenzene 1 0 0 97 0 93 0 100 1 97 93 4 2 <br /> Benzene 1 0 0 105 0 101 0 I 100 1 105 101 3 9 <br /> Toluene 1 0 0 101 0 100 0 100 1 101 100 1 0 <br /> k Rec = (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />