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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #137, Pacheco, CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> s <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 06/30-07/01/95 Matrix: Soil <br /> ' Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> ' TPH (gas) 0.000 1.916 1.972 2.03 94 97 2.9 <br /> Benzene 0.000 0.180 0.188 0.2 90 94 4.3 <br /> ' Toluene 0.000 0.182 0.190 0.2 - 91 95 4.3 <br /> Ethylbenzene 0.000 0.184 0.190 0.2 92 95 3.2 <br /> Xylenes 0.000 0.596 0.610 0.6 99 102 2.3 <br /> ' TPH (diesel) 0 352 350 300 117 117 <br /> 0.6 <br /> TRPH 0.0 19.1 19.2 20 96 96 0.5 <br /> (oil & grease) <br /> % Rec = (MS - SaW e) / amount spiked x 100 <br /> ' RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> i <br />