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110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1f <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 12/22--12/24/94 Matrix: Soil <br /> Concentration (mg/kg) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.775 1.795 2.03 87 88 1.1 <br /> Benzene 0.000 0.186 0.192 0.2 93 96 3.2 <br /> Toluene 0.000 0.194 0.202 0.2 97 101 4.0 <br /> Ethylbenzene 0.000 0.194 0.198 0.2 97 99 2.0 <br /> Xylenes 0.000 0.604 0.614 0.6 101 102 1.6 <br /> TPH (diesel) 0 284 285 300 95 95 0.4 <br />• <br /> TRPH 0.0 22.8 22.2 20.8 110 107 2 .7 <br /> (oil & grease) <br /> X Rec. = (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - NSD) / (MS + KSD) x 2 x 100 <br />