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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br />Tele: 510-798-1620 Fa)c 510-798-1622 <br />QC REPORT FOR HYDROCARBON ANALYSES <br />Date: 09/23/97 Matrix: Soil <br />i <br />Concentration <br />(mg/kg) <br />% Recovery <br />Analyte I <br />Sample <br />Amount <br />RPD <br />I(#79456) <br />MS <br />MSD <br />Spiked <br />MS <br />MSD <br />TPH (gas) <br />0.000 <br />1.836 <br />1.878 <br />2.03 <br />90 <br />93 <br />2.3 <br />Benzene <br />0.000 <br />0.176 <br />0.172 <br />0.2 <br />88 <br />86 <br />2.3 <br />Toluene <br />0.000 <br />0.184 <br />0.182 <br />0.2 <br />92 <br />91 <br />1.1 <br />Ethylbenzene <br />0.000 <br />0.178 <br />0.174 <br />0.2 <br />89 <br />87 <br />2.3 <br />Xylenes <br />0.000 <br />0.524 <br />0.510 <br />0-6 <br />87 <br />85 <br />2.7 <br />TPH(diesel) <br />0 <br />271 <br />273 <br />300 <br />90 <br />91 <br />0.9 <br />TRPH <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />(oil and grease)I <br />I 1 <br />I <br />Rec. _ (MS - Sample) / amouae sniked s loo <br />RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />