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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: 08/22/97 Matrix: Soil <br /> Concentration (mg/kg) I I % Recovery <br /> Analyte Sample Amount RPD <br /> 1•(+75873) MS MSD I Spiked MS MSD <br /> TPH (gas) 0 . 000 1. 997 1 .882 2 .03 98 93 5 .9 <br /> Benzene 0 . 000 0 .194 0 .188 0 .2 97 94 3 . 1 <br /> Toluene 0 .000 0 .232 0 .200 0 .2 116 100 14 .8 <br /> Ethylbenzene 0 .000 0 .190 0 .192 0 .2 95 96 1 .0 <br /> Xylenes 0 .000 0 .600 0 .600 I 0 .6 100 100 0 .0 <br /> TPH(diesel) 0 312 314 300 104 105 0 .4 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil and grease) <br /> Rec. _ (MS - Sample) / amounc spiked x 100 <br /> RPD = (MS - MD) / ;MS + MSD) x 2 x 100 <br />