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FMcCAPMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT <br /> ' Date: 12/16-12/20/91 Matrix: soil <br /> Concentration (mg/kg) $ Recovery <br /> Analyte Amount RPD <br />' Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.00 1.78 2.07 2.03 88 102 15.1 <br /> Benzene 0.00 0.158 0.17 0.2 79 85 7.3 <br /> Toluene 0.00 0.16 0.168 0.2 80 84 4.9 <br /> Ethyl Benzene 0.00 0.16 0.168 0.2 80 84 4.9 <br /> Xylenes 0.00 0.478 0.508 0.6 80 85 6.1 <br /> 1 TPH (diesel) 0 23 24 30 78 81 4.4 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br />' (oil & grease) <br /> % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSO) / (MS + MSD) x 2 x 100 <br /> _ r <br />