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MCCAMPBELL ANALYTICAL INC. T110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fax:510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 08/18/95 Matrix: Soil <br /> Concentration (mg/kg) % Recovery <br /> Analyte Amount <br /> RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.000 1.687 1.778 2.03 83 88 5.3 <br /> Benzene 0.000 0.182 0.176 0.2 91 88 3.4 <br /> L Toluene 0.000 0.186 0.180 0.2 93 90 3.3 <br /> Ethylbenzene 0.000 0.184 0.186 0.2 92 93 <br /> Xylenes 1.1 <br /> Y 0.000 0.566 0.556 0.6 94 93 1.8 <br /> TPH (diesel) 0 294 289 300 98 96 1.7 <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 MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> II� I <br />