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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br />McCAMPBELL ANALYTICAL INC. <br />Tele: 510-798-1620 Fax- 510-798-1622 <br />QC REPORT FOR HYDROCARBON ANALYSES <br />Date: <br />10/03/97 <br />Matrix: Soil <br />Concentration <br />(mg/kg) I I % Recovery <br />Analyte <br />I Sample <br />I Amount I <br />RPD <br />1(#79445) MS <br />MSD I Spiked I MS MSD <br />TPH (gas) <br />0.000 1.682 <br />1.844 2.03 83 91 <br />9.2 <br />Benzene <br />0.000 0.164 <br />0.164 0.2 82 82 <br />0.0 <br />Toluene <br />0.000 0.170 <br />0.174 0.2 85 87 <br />2.3 <br />Ethylbenzene <br />0.000 0.170 <br />0.176 0.2 85 88 <br />3.5 <br />Xylenes <br />0.000 0.526 <br />0.528 0.6 88 88 <br />0.4 <br />TPH(diesel) <br />0 300 <br />303 300 100 101 <br />1.0 <br />TRPH <br />0.0 21.2 <br />23.2 20.8 102 112 <br />9.0 <br />1(oil and grease) <br />Rec. _ (MS - Sample) / <br />amount spiked x 100 <br />RPD (MS - MSD) / (MS <br />+ MSD) x 2 x 100 <br />