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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 />10/02/97 <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 <br />MSD <br />TPH (gas) <br />0.000 2.001 <br />2.065 2.03 99 <br />102 <br />3.1 <br />Benzene <br />0.000 0.206 <br />0.214 0.2 103 <br />107 <br />3.8 <br />Toluene <br />0.000 0.206 <br />0.214 0.2 103 <br />107 <br />3.8 <br />Ethylbenzene <br />0.000 0.208 <br />0.214 0.2 104 <br />107 <br />2.8 <br />Xylenes <br />0.000 0.628 <br />0.642 0.6 105 <br />107 <br />2.2 <br />TPH(diesel) <br />0 300 <br />303 ( 300 100 <br />101 <br />1.0 <br />TRPH <br />N/A N/A <br />N/A N/A N/A <br />N/A <br />N/A <br />(oil and grease) <br />k Rec. _ (MS - Sample) / <br />amount spiked x 100 <br />RPD = (MS - MSD) / ;MS <br />+ MSD) x 2 x 100 <br />