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110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tcle 510-798-1620 Far-510-798-1621- <br /> QC <br /> ar-510-798-162?QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 11/23/94 Matrix: Soil <br /> Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked HS HSD <br /> TPH (gas) 0.000 1.844 1.838 2.03 91 91 0.3 <br /> Benzene 0.000 0.188 0.188 0.2 94 94 0.0 <br /> Toluene 0.000 0.202 0.200 0.2 101 100 1.0 <br /> Ethylbenzene 0.000 0.194 0.194 0.2 97 97 0.0 <br /> Xylenes 0.000 0.592 0.596 0 6 99 99 0.7 <br /> ITPH (diesel) 0 324 321 300 108 107 0 9 <br /> TRPH 0.0 23.9 22.6 20 8 115 109 5 6 <br /> (oil & grease) <br /> % Rec. = (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> I <br />