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1 <br />' McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> 1• i <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 06/22-06/23/94 Matrix Water <br />' Concentrationu L <br /> ( g/ ) % Recovery <br />' Analyte Amount RPD <br /> Sample MS MSD Spxked MS MSD <br />' TPH (gas) 0.0 95.5 94.9 100 95.5 94.9 0.6 <br /> Benzene 0 9.8 10.2 10 98.0 102.0 4.0 <br /> Toluene 0 9.8 10.2 10 98.0 102.0 4.0 <br />' Ethyl Benzene 0 10.1 10.5 10 101.0 105.0 3.9 <br /> Xylenes 0 30.9 31.9 30 103.0 106.3 3.2 <br />' TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH 0 23100 23100 20800 111 111 0.0 <br />' (oil & grease) <br /> I <br />' % Rec = (MS - SampLe) / amount spiked x 100 <br /> fRPD = (MS - MSD) / (MS + NSD) x 2 x 100 <br /> f <br /> f <br /> f <br /> f <br />