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r <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: 09/23/98 Matrix: SOIL <br /> Concentration (mg/kg) j Recovery <br /> j Analyte j Sample j Amount RPD j <br /> j <br /> 1 (#90231) MS MSD j Spiked j MS MSD <br /> j TPH (gas) 0 .000 2 .150 2 .034 j 2 . 03 j 106 100 5 .5 <br /> j Benzene j 0.000 0.210 0 .224 j 0.2 j 105 112 6 .5 } <br /> Toluene j 0.000 0.220 0 .232 j 0 .2 j 110 116 5 .3 j <br /> Ethylbenzene 0.000 0 .220 0 .220 0 .2 110 110 0 .0 <br /> j Xylenes I 0 .000 0 .636 0.648 j 0 .6 j 106 108 1 . 9 i <br /> TPH(diesel) 0 314 314 300 j 105 105 0 .3 j <br /> TRPH j N/A N/A N/A j N/A j N/A N/A N/A <br /> (oil and grease) <br /> L j <br /> t Rec. (MS - Sample) / amount spiked x 100 <br /> RPD n (MS - MSD) / (MS + MSD) x 2 x 100 <br />