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McCAMPBELL ANALYTICAL INC I 110 22nd Avenue South, #137, PachLco, CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' J Date- 09/08/94 Matrix. Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 106 2 102 2 100 106 '2 102 2 3 8 <br />' Benzene 0 10 9.9 10 100 0 99.0 1 0 <br /> Toluene 0 10 1 10 10 101 0 100 0 1 0 <br /> Ethyl Benzene 0 10 2 10 10 102 0 100 0 2 0 <br /> Xylenes 0 31 7 31 1 30 105 7 103 7 1 9 <br /> TPH (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 % Rec = (MS Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br />