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f <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: 09/16/98 Matrix: SOIL <br /> Concentration (mg/kg) I I % Recovery I j <br /> Analyte Sample I Amount I RPD <br /> (#90409) MS MSD I Spiked I MS MSD I ' <br /> I I I I I <br /> f I I <br /> TPH (gas) 0.000 1 . 815 1.871 I 2 .03 I 89 92 3 .0 I i <br /> Benzene I 0.000 0 .198 0 .202 I 0.2 I 99 101 2 .0 <br /> Toluene 0.000 0.202 0 .206 0.2 101 103 2 .0 <br /> Ethylbenzene 0.000 0.202 0 .210 I 0.2 I 101 105 3 .9 <br /> Xylenes 0.000 0.606 0 .626 0.6 101 104 3 .2 <br /> i <br /> TPH(diesel) 0 305 297 I 300 102 99 2 .6 <br /> TRPH 0 .0 21.4 22.1 I 20.8 I 103 106 3 .2 <br /> I (oil and grease) <br /> 8 Rec. - {MS - Sample} / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> • <br />