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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele:510-798-1620 Fax:510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 11/03-11/04/94 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 95.4 90.7 100 95.4 90.7 5.1 <br /> Benzene 0 10.3 11.2 10 103.0 112.0 8.4 <br /> Toluene 0 10 10.9 10 100.0 109.0 8.6 <br /> Ethyl Benzene 0 9.9 10.7 10 99.0 107.0 7.8 <br /> Xylenes 0 31.1 34.3 30 103.7 114.3 9.8 <br /> TPH (diesel) 0 160 160 150 107 107 0.0 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Ret. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />