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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 01/13/98 Matrix SOIL <br /> Concentration (mg/kg) I I % Recovery f <br /> Analyte I Sample Amount RPD <br /> (#79458) MS MSD Spiked MS MSD f <br /> f TPH (gas) 0 000 1 861 1 884 f 2 03 92 93 1 2 <br /> Benzene 0 000 0 170 0 166 0 2 85 83 2 4 <br /> Toluene 0 000 0 184 0 160 0 2 92 90 2 2 <br /> [ Ethylbenzene 0 000 0 178 0 172 0 2 89 86 3 4 <br /> Xylenes 0 000 0 532 0 520 0 6 89 87 2 3 <br /> TPH(diesel) 0 268 268 300 89 89 0 1 <br /> TRPH 0 0 22 3 19 9 20 8 I 107 96 11 4 <br /> ' (oil and grease) <br /> S Rec - (MS - Sample) / amount spiked x 100 <br /> RPD - (MS - MSD) / (MS + MSD) x 2 x 100 <br /> i <br />