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McCAMPBFi"i_ 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: 04/01-04/02/94 Matrix: Water <br /> ' Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 96.5 97.3 100 96.5 97.3 0.8 <br /> Benzene 0 10 10 10 100.0 100.0 0.0 <br /> Toluene 0 10.1 10.2 -10 101.0 102.0 1.0 <br /> Ethyl Benzene 0 10.3 10.3 10 103.0 103.0 0.0 <br /> Xylenes 0 31.2 31.5 30 104.0 105.0 1.0 <br /> TPH (diesel) 2 162 149 150 106 98 8.3 <br /> TRPH 0 23200 23700 23700 98 100 2.1 <br /> ' (oil & grease) <br /> % Rec. = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + ASD) x 2 x 100 <br /> L <br /> j <br />