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1 <br />1 <br />1 <br />1 <br />0 <br />110 2nd Avenue South, #D7, Pacheco, CA 94553 <br />McCAMPBELL ANALYTICAL INC. Tele: 510-798-1620 Fax:510-798-1622 <br />QC REPORT FOR HYDROCARBON ANALYSES <br />Date: 09/29/97-09/30/97 Matrix: Soil <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Concentration <br />(mg/kg) <br />Analyte <br />Sample <br />TPH (gas) <br />Amount <br />Benzene <br />Toluene <br />Ethylbenzene <br />(#79445) <br />Xylenes <br />MSD <br />Spiked <br />( MS <br />TPH(diesel) <br />0.000 <br />1.970 <br />TRPH <br />2.03 <br />(oil and grease) <br />95 <br />2.2 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Concentration <br />(mg/kg) <br />% Recovery <br />Sample <br />Amount <br />RPD <br />(#79445) <br />MS <br />MSD <br />Spiked <br />( MS <br />MSD <br />0.000 <br />1.970 <br />1.928 <br />2.03 <br />97 <br />95 <br />2.2 <br />0.000 <br />0.168 <br />0.172 <br />0.2 <br />( 84 <br />86 <br />2.4 <br />0.000 <br />0.190 <br />0.194 <br />0.2 <br />95 <br />97 <br />2.1 <br />0.000 <br />0.190 <br />0.192 <br />0.2 <br />95 <br />96 <br />1.0 <br />0.000 <br />0.566 <br />0.574 <br />0.6 <br />94 <br />96 <br />1.4 <br />0 <br />319 <br />320 <br />300 <br />106 <br />107 <br />0.1 <br />N/A <br />N/A <br />N/A <br />N/A <br />I <br />N/A <br />N/A <br />N/A <br />Rec. _ (MS - Sample) / amount spiked x 100 <br />RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />