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110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC- Tele.510-798-1620 Fan 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 10/20-10/21/93 Matrix: water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 113.5 116.9 100 113.5 116.9 3.0 <br /> Benzene 0 9.6 10.2 10 96.0 102.0 6.1 <br /> Toluene 0 9.7 10.4 10 97.0 104.0 7.0 <br /> Ethyl Benzene 0 8.8 10 10 88.0 100.0 12.8 <br /> Xylenes 0 29.7 31.7 30 99.0 105.7 6.5 <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. = CMS - Sample) / amount spiked x 100 <br /> RPD = (NS - NSD) / (NS f NSC) X 2 X 100 J <br /> 1 <br /> 1 - <br />