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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: 12/06-12/07/94 Matrix: Soil <br /> Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.818 1.852 2.03 90 91 1.9 <br />' Benzene 0.000 0.174 0.178 0.2 87 89 2.3 <br /> Toluene 0.000 0.184 0.184 0.2 92 92 0.0 <br /> Ethylbenzene 0.000 0.182 0.186 0.2 91 93 2.2 <br /> Xylenes 0.000 0.566 0.574 0.6 94 96 1.4 <br /> TPH (diesel) 0 265 285 300 95 95 0.0 <br /> TRPH 0.0 22.0 22.4 20.8 106 108 1.8 <br />' (oil & grease) <br />' % Rec. _ (MS Sampte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />