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McCAMPBELL ANALYTICAL INC. I 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> Tele:510-798-1620 Fax: 510-798-1622___j <br /> QC REPORT FOR-HYDROCARBON ANALYSES <br /> Date: 09/03/94 Matrix: Soil <br /> Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0.00 2.027 2.076 2.03 100 102 2.4 <br /> Benzene 0.000 0.178 0..178 0.2 89 89 0.0 <br /> Toluene 0.000 0.182 0.182 0.2 91 91 0.0 <br /> Ethylbenzene 0.000 0.180 -0.180 0.2 90 90 0.0 <br /> Xylenes 0.000 0.562 70.556 0.6 94 93 1. 1 <br /> b <br /> TPH. (diesel) 0 314 314 300 105 105 0.2 <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 /> RPD (MS - MSD) / (MS + NSD) x 2 x 100 <br /> I . <br /> i <br /> i <br /> 1. <br />