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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br />McCAMPBELL ANALYTICAL INC. Tele: 510-798-1620 I= 510-798-1622 <br />QC REPORT FOR HYDROCARBON ANALYSES <br />Date: 09/28/98-09/29/98 Matrix: SOIL <br />% Rec. - (MS - Sample) / amount spiked x 100 <br />APD • (MS - NSD) / (MS . MSD) x 2 x 100 <br />Concentration <br />(mg/kg) <br />% Recovery <br />Analyte <br />Sample <br />Amount <br />-'-PD <br />l(,u.90231) <br />MS <br />MSD <br />Spiked <br />MS <br />MSD <br />TPH (gas) <br />0.000 <br />2.144 <br />1.923 <br />2.03 <br />106 <br />95 <br />10.9 <br />Benzene <br />0.000 <br />0.188 <br />0.190 <br />0.2 <br />94 <br />95 <br />1.1 <br />Toluene <br />0.000 <br />0.206 <br />0.202 <br />0.2 <br />103 <br />101 <br />2.0 <br />Ethylbenzene <br />0.000 <br />0.198 <br />0.194 <br />0.2 <br />99 <br />97 <br />2.0 <br />Xylenes <br />0.000 <br />0.592 <br />0.580 <br />0.6 <br />99 <br />97 <br />2.0 <br />TPH(diesel) <br />0 <br />314 <br />309 <br />300 <br />105 <br />103 <br />1.5 <br />TRPH <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />(oil and grease) <br />% Rec. - (MS - Sample) / amount spiked x 100 <br />APD • (MS - NSD) / (MS . MSD) x 2 x 100 <br />