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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 /> -71• <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 05/22-05/23/95 Matrix: Soil <br />' Concentration (mg/kg) $ Recovery <br /> Analyte IAmount RPD <br />' Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.686 1.698 2.03 83 84 0.7 <br />' Benzene 0.000 0.188 0.192 0.2 - 94 96 2.1 <br /> Toluene 0.000 0.182 0.182 0.2 91 91 0.0 <br /> Ethylbenzene 0.000 0.180 0.180 0.2 90 90 0 0 <br />' Xylenes 0.000 0.550 0.552 0. 6 92 92 0.4 <br /> TPH (diesel) 0 339 338 300 113 113 0.4 <br /> 1 • <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 + MSD) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br />