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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 /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 06/07-06/08/95 Matrix: Soil <br /> Concentration (mg/kq) % Recovery <br /> Analyte Amount <br /> RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.861 1.882 2.03 92 93 1.1 <br /> Benzene 0.000 0.188 0.188 0.2 94 94 0.0 <br /> Toluene 0.000 0.194 0.194 0.2 97 97 0.0 <br /> Ethylbenzene 0.000 0.192 0.192 0.2 96 96 0.0 <br /> Xylenes 0.000 0.598 0.594 0.6 100 99 0.7 <br /> TPH (diesel) 0 308 309 300 103 103 0.4 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> i <br /> i <br /> i <br /> i <br /> 4 <br /> % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPO = (MS - MSD) / (MS i MSD) x 2 x 100 <br /> t <br /> a <br />