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r <br /> McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fay 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 05/08/98 Matrix: SOIL <br /> Concentration (mg/kg) I I $ Recovery I <br /> Analyte I sample I Amount I RPD <br /> I � (#83153) MS MSD I Spiked I MS MSD I <br /> [ TPH (gas) I 0.000 1.980 1.922 2. 03 I 98 95 3.0 <br /> Benzene I 0 .000 0.204 0.226 I 0 .2 I 102 113 10 .2 <br /> Toluene 0.000 0.212 0.228 I 0 .2 I 106 114 7.3 <br /> Ethylbenzene I 0.000 0.214 0 .230 I 0 .2 I 107 115 7.2 <br /> Xylenes I 0.000 0.640 0.694 I 0 .6 I 107 116 8.1 <br /> I I I 1 <br /> I TPH(diesel) I 0 295 297 I 300 I 98 99 0 .9 <br /> TRPH I 0. 0 30. 8 31 .1 30 I 103 104 1.0 I <br /> (oil and grease) I I I <br /> V Rec. (MS - Sample) / amount spiked x 100 <br /> RPD - (MS - MSD) / (MS . MSD) x 2 x 100 <br /> i <br />