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110 2nd Avenue th, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYI7CAL INC. Tele:51O-798-1620 Fax 510.798-16"— <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 11/07-11/09/94 Matrix: Soil <br /> Concentration (mg/kg) 4 Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.962 1.914 2.03 97 94 2.5 <br /> Benzene 0.000 0.190 0.186 0.2 95 93 2.1 <br /> Toluene 0.000 0.192 0.190 0.2 96 95 1.0 <br /> Ethylbenzene 0.000 0.196 0.192 0.2 98 96 2.1 <br /> Xylenes 0.000 0.614 0.600 0.6 102 100 2.3 <br /> TPH (diesel) 0 314 317 300 105 106 0.9 <br /> TRPH 0.0 19.1 19.3 20.8 92 93 1.0 <br /> (oil & grease) <br /> X Rec. _ (MS - Sa )(e) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />