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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: 07/14/98-07/15/98 Matrix: SOIL <br /> Concentration (mg/kg) I I % Recovery <br /> Analyte I Sample I Amount I RPD <br /> I (#89940) MS MSD I Spiked I MS MSD <br /> TPH (gas) I 0.000 2.065 2.079 I 2 .03 I 102 102 0 .7 <br /> Benzene I 0.000 0 .200 0.204 I 0.2 I 100 102 2.0 <br /> Toluene I 0.000 0 .216 0.232 I 0.2 I 108 116 7.1 <br /> Ethylbenzene I 0.000 0.208 0.220 I 0.2 I 104 110 5.6 <br /> Xylenes I 0.000 0.620 0.644 I 0 .6 I 103 107 3 .8 <br /> TPH(diesel) I 0 267 291 I 300 I 89 97 8 .6 <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> I (oil and grease) <br /> Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />