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R <br /> NNW, 110 2nd Avenuelrh,#D7, Pacheco,CA 94533 <br /> McCAMPBELL ANALYTICAL INC. T Tele. 925-798-1620 Fax: 925-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 12/29/98 Matrix: SOIL <br /> Concentration (mg/kg) I I Recovery <br /> Analyte Sample Amount I RPD <br /> I (#95831) MS MSD Spiked k MS MSD I <br /> I I I I I <br /> TPH (gas) I 0.000 1.873 1.877 I 2.03 I 92 92 0.2 <br /> Benzene I 0.000 0 .198 0.204 I 0.2 I 99 102 3.0 <br /> Toluene I 0.000 0 .214 0 .214 I 0.2 I 107 107 0 .0 j <br /> j Ethylbenzene 0 .000 0.204 0.206 0 .2 I 102 103 1.0 <br /> Xylenes I 0.000 0.618 0.598 j 0.6 € '103 100 3 -3 I <br /> TPH(diesel) I 0 336 332 I 300 I 112 111 1.2 I <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> I (oil and grease) I <br /> F Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br />