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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fay 510-79&1622 <br /> t <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> I� <br /> Date: 03/29/94 Matrix: Soil <br /> Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br /> if <br /> Sample MS MSD Spiked MS MSD <br /> f TPH (gas) 0.000 1.808 1.817 2.03 89 90 0.5 <br /> k Benzene 0.000 0.172 0.176 0.2 86 88 2.3 <br /> Toluene 0.000 0.178 0.180 0.2 89 90 1.1 <br /> Ethylbenzene 0.000 0.178 0.182 0.2 89 91 2.2 <br /> Xylenes 0.000 0.546 0.550 0.6 91 92 0.7 ' <br /> i <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Rec. = (MS - Sample) / amount spiked x 100 <br /> RPO = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> E <br /> ------------- <br /> I <br /> i <br /> i <br /> i <br /> E <br />