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210 2nd Avenue South, #D7, Pacheco, CA 91553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 08/07/95 Matrix: water <br /> Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 92.0 91.5 100 92 91 0.5 <br /> Benzene 0 9.1 9.3 10 91.0 93.0 2.2 <br /> Toluene 0 9.6 9.8 10 96.0 98.0 2.1 <br /> Ethyl Benzene 0 9.9 10.1 10 99.0 101.0 2.0 <br /> Xylenes 0 30.7 31.3 30 102.3 104.3 1.9 <br /> TPH (diesel) 0 154 153 150 103 102 0.7 <br /> TRPH 0 18000 19500 23700 76 82 8.0 <br /> (oil & grease) <br /> % Rec a (MS - 5ampte) / amount Spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) X 2 X 100 <br />