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110 tad Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-I620 Fac 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 01/27-01/28/94 Matrix: Water <br /> Concentration (ug/L) 11 <br /> 1 $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 115.0 108.7 100 115.0 108.7 5.6 <br /> Benzene 0 9.7 9.8 10 97.0 98.0 1.0 <br /> Toluene 0 10 9.8 10 100.0 98.0 2.0 <br /> Ethyl Benzene 0 10.1 9.9 10 101.0 99.0 2.0 <br /> Xylenes 0 30.7 29.5 30 102.3 98.3 4.0 <br /> TPH (diesel) 0 161 152 I50 107 101 5.8 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Rec. = CMS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS * MSD) x 2 x 100 <br />