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110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 05/28/95 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> ISample MS MSD Spiked MS MSD , <br /> TPH (gas) 0.0 100.3 93.0 100 100.3 93.0 7.5 <br /> Benzene 0 9.6 10 10 96.0 100.0 4. 1 <br /> Toluene 0 9.4 9.8 10 94.0 98.0 4.2 <br /> Ethyl Benzene 0 9.4 9.7 10 94,.0 97.0 3.1 <br /> Xylenes 0 29.5 30.8 30 98.3 102.7 4.3 <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 /> % Rec = (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSU) / (MS + MSD) x 2 x 100 <br />