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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South #D7 Pacheco' CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> i <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 01/31/95 Matrix: Water <br />' Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br />' TPH (gas) 0.0 90.4 92.3 100 90.4 92 3 2.1 <br /> Benzene 0 8.8 9 10 88.0 90.0 2.2 <br />' Toluene 0 9 9.2 10 90.0 92.0 2.2 <br /> Ethyl Benzene 0 9 9.2 10 90.0 92.0 2.2 <br /> Xylenes 0 27.8 28.5 30 92.7 95.0 2.5 <br />' TPH (diesel) 0 144 150 150 96 100 4.5 <br /> TRPH 0 22100 22300 23700 93 94 0.9 <br /> (oil & grease) <br /> X Rec. _ (MS - Sample) / amount spiked X 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br /> 1 <br />