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1102nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> i <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/01/95-09/02/95 Matrix: Soil <br /> Concentration (mg/kg) Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 2.024 1.954 2.03 100 96 3.5 <br /> Benzene 0.000 0.190 0.182 0.2 95 91 4.3 <br /> Toluene 0.000 0.190 0. 180 0.2 95 90 5.4 <br /> Ethylbenzene 0.000 0. 190 0.180 0.2 95 90 5.4 <br /> Xylenes 0.000 0.600 0. 580 0.6 100 97 3.4 <br /> ; F <br /> I <br /> TPH (diesel) 0 295 299 300 98 100 1.6 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> :;- (oil & grease) <br /> i % Rec. = (MS - Samp(e) / amount spiked x 100 <br /> :, <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> _ r <br />