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i110 2nd Avenue South, #137, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 F= 510-798-162-1 <br /> i <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> i <br /> Date: 10/15/94 Matrix* water <br /> i <br /> Concentration (ug/L) $ Recovery <br /> i Analyte Amount RPD <br /> Sample MS MSB Spiked MS MSD <br /> iTPH (gas) 0.0 98.9 98 4 100 98 9 98.4 0.5 <br /> Benzene 0 9.1 9.4 10 91 0 94.0 3 2 <br /> i Toluene 0 9 4 9 8 10 94.0 98.0 4.2 <br /> Ethyl Benzene 0 9.5 9 7 10 95.0 97.0 2.1 <br /> Xylenes 0 29.8 30.5 30 99.3 101.7 2.3 <br /> iTPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> i <br /> % Rec = (MS - Sampte) / amount spiked x 100 <br /> iRPD = (MS - NSD) / (MS + MSD) x 2 x 100 <br /> I <br /> r <br /> i <br /> r <br /> t <br />