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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 /> [[r <br /> J <br /> j QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 04/10/97 Matrix: Water <br /> Concentration (mg/L) I I % Recovery <br /> Analyte Sample I Amount I RPD <br /> I (#75397) MS MSD I Spiked I MS MSD <br /> TPH (gas) I 0 .0 94 .7 104 .6 I 100.0 I 94 .7 104 .6 9 .9 <br /> Benzene I 0 .0 8.7 8 . 8 I 10.0 I 87 . 0 88 .0 1.1 <br /> Toluene 0 .0 9.2 9.3 10.0 I 92 .0 93 .0 1.1 <br /> Ethyl Benzene I 0 .0 9.5 9. 8 I 10.0 I 95 .0 98 . 0 3 .1 <br /> Xylenes I 0 . 0 28 .3 28 .9 I 30 .0 II 94 .3 96.3 2 .1 <br /> ITPH (diesel) 0 137 133 I 150 I 91 88 3 .1 <br /> TRPH I 0 21800 23400 I 23700 92 99 7 .1 <br /> _ I (oil & grease) I <br /> r� % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> f_d <br /> -, <br />