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1 <br /> McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South,#137,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fay 510-798-1622 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 07/20/98-07/21/98 Matrix: SOIL <br /> Concentration (mg/kg) I I % Recovery <br /> Analyte I Sample I Amount I RPD I <br /> I (#89942) MS MSD I Spiked I MS MSD I <br /> I I l I <br /> TPH (gas) I 0.000 1.992 2.058 I 2 .03 I 98 101 3 .3 I <br /> Benzene I 0 .000 0.198 0.176 I 0 .2 I 99 88 11.8 I <br /> Toluene I 0 .000 0.210 0.188 I 0.2 I 105 94 11.1 I <br /> f Ethylbenzene I 0 .000 0.202 0.182 I 0 .2 I 101 91 10 .4 <br /> EI Xylenes I 0 .000 0.604 0.552 I 0 .6 I 101 92 9.0 I <br /> TPH(diesel) I 0 321 329 I 300 I 107 110 2 .4 I <br /> TRPH I 0 .0 24 .1 22 .0 I 20. 8 I 116 106 9.1 I <br /> I (oil and grease) I <br /> 1 <br /> E <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> r <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> E <br /> I <br /> I <br /> I <br /> E <br /> E I <br /> i <br /> E <br /> E <br />