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McCAMPBELL ANALYTICAL ;TC--T110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Far-510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/17/93 Matrix: Soil <br /> Concentration (mg/kg) V Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 2.288 2.110 2.03 113 104 8.1 <br /> Benzene 0.000 0.182 0.182 0.2 91 91 0.0 <br /> Toluene 0.000 0.190 0.188 0.2 95 94 1.1 <br /> Ethyl Benzene 0.000 0.186 0.180 0.2 93 90 3.3 <br /> Xylenes 0.000 0.570 0.554 0.6 9S 92 2.8 <br /> TPH (diesel) 4 339 333 300 ill 109 1.8 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Rec. _ (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSO) / (MS + MSD) x 2 x 100 <br />