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F7�cCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #137, Pacheco, CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 11/09/95 Matrix: Soil <br /> Concentration (mg/kg) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 2. 101 1 965 2 03 103 97 6.7 <br /> Benzene 0.000 0. 178 0.170 0.2 89 85 4.6 <br /> Toluene 0 000 0. 182 0.170 0.2 91 85 6.8 <br /> Ethylbenzene 0 000 0. 188 0.176 0.2 94 88 6.6 <br /> Xylenes 0.000 0. 582 0 546 0. 6 97 91 6.4 <br /> TPH (diesel) 0 280 280 300 93 93 0. 1 <br /> . TRPH 0.0 20 5 20.3 20.8 99 98 1.0 <br /> (oil & grease) <br /> % Rec. _ (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />