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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> ' McCAMP$ELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> II � <br /> Y <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> ' Date: 07/22-07/23/95 Matrix. water <br /> Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> ' Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 127.6 120.0 100 128 120 6.2 <br /> Benzene 0 10.5 10.5 10 - 105 0 105.0 0.0 <br /> Toluene 0 10.6 10.6 10 106.0 106.0 0.0 <br /> Ethyl Benzene 0 10.7 10.7 10 107.0 107 0 0.0 <br /> Xylenes 0 33.6 33.7 30 112.0 112.3 0.3 <br /> TPH (diesel) 0 143 141 150 96 94 1 9 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Ree = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />� r , <br />