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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, N D7, Pacheco, CA 94553 <br /> Telc 510-798-16.2.0 F=510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 01/27/95 Matrix water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 109.8 104 0 100 109.8 104.0 5.4 <br /> Benzene 0 9.9 9.6 10 99.0 96 0 3. 1 <br /> Toluene 0 10 2 9.9 10 102.0 99 0 3.0 <br /> Ethyl Benzene 0 10.3 10. 1 10 103.0 101 0 2 .0 <br /> Xylenes 0 31.7 30.7 30 105.7 102.3 3.2 <br /> TPH (diesel) 0 144 137 150 96 92 4.9 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> % Rec = (MS - Sample) / amount spliced x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />