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a <br /> McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> Tele 510-798-1620 Fax- 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date- 10/29/95 Matrix: Water <br /> Concentration (ug/L) Amount % Recovery <br /> Analyte <br /> RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 105.9 112.5 100 106 113 6.0 <br /> Benzene 0 8.6 8.3 10 86.0 83 0 3.6 <br /> Toluene 0 8.6 8.7 10 86.0 87 0 1.2 <br /> Ethyl Benzene 0 9 9.2 10 90.0 92 0 2.2 <br /> Xylenes 0 27.7 28.6 30 92 3 95.3 3.2 <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 - MSD) / (MS + MSD) x 2 x 100 <br />