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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele: 925-798-1620 Fax:925-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/17/99-09/18/99 Matrix: SOIL, <br /> Concentration. (mg/kg) I % Recovery 1 <br /> Analyte I Sample I Amount RPD <br /> 1 (#12856) MS MSD I Spiked I MS MSD <br /> TPH (gas) I 0.000 2 .153 2.154 } 2 .03 106 106 0.0 <br /> Benzene I 0.000 0.220 0.220 0 .2 1.10 110 0.0 I <br /> Toluene I 0.000 0 .224 0 .222 I 0 .2 112 111 0.9 <br /> Ethylbenzene I 0.000 0 .220 0 .222 1 0 .2 I 110 111 0.9 <br /> Xylenes 0.000 0 .650 0.652 0 .6 f 108 109 0.3 <br /> I 1 <br /> TPH(diesel) I 0 272 274 300 91 91 0.7 <br /> I I l I I <br /> TRPH I 0.0 24.2 23 .3 I 20 .8 I 116 112 3 .8 <br /> (oil and grease) j <br /> !k Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD =( (MS - MSD) / (MS + MSO) )x 2 x 100 <br />