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110 2nd Avenue South,#D7,Pacheco,CA 94553 ` <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Faic 510.798-1622 <br /> QC REPORT <br /> i <br /> Dates 03/01-03/02/93 matrix: Soil <br /> concentration (mg/kg) $ Recovery <br /> ' Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> i <br /> f. t <br /> 1t <br /> f TPH (gas) 0.000 1.844 1.784 2.03 91 88 3.3 <br /> { Benzene 0.000 0.176 0.114 0.2 88 87 1.1 <br /> Toluene 0.000 0.180 0.180 0.2 90 90 0.0 <br /> Ethyl Benzene 0.000 0.178 0.176 0.2 89 88 1.1 <br /> Xylenes 0.000 0.520 0.516 0.6 87 86 0.8 <br /> ) <br /> TPH (diesel) 0 301 301 300 100 100 0.1 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A 1 <br /> (oil & grease) <br /> f. <br />! I <br /> k, % Rec. _ (MS - Sample) ! amount spiked x 100 <br /> `h <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> ) <br /> 3 <br /> k <br /> I <br />