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110 2nd 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: 02/16-02/17/95 Matrix: Soil <br /> I Concentration (mg/kg) Amount $ Recovery <br /> Analyte RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.884 1.933 2.03 93 95 2.6 <br /> Benzene 0.000 0.200 0.200 0.2 100 100 0.0 <br /> Toluene 0.000 0.204 0.202 0.2 102 101 1.0 <br /> Ethylbenzene 0.000 0.204 0.202 0.2 102 101 1.0 <br /> Xylenes 0.000 0.630 0.628 0.6 105 105 0.3 <br /> I <br /> TPH (diesel) 0 284 284 300 95 95 0.2 <br /> I � <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 f MSD) x 2 x 100 <br /> I <br /> I <br />