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f ° ^ 110 2nd Av+enuc Sottth, D7,Pacheco.CA 94553 <br /> McCAMPBELLANALYTICAL INC. <br /> ��... . ,..:.., Tele:510-798-1620 Fay 510-798-1622 <br /> IS <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> 1. <br /> Date: 07/22/94 Matrix: Water <br /> concentration (ug/L) 8 Recovery <br /> Analyte Amount RPD <br /> sample MS MSD Spiked MS MSD <br /> 1 <br /> TPH (gas) 0.0 99.8 98.5 100 99.8 , 98.5 1.3 <br /> Benzene 0 10.4 10.2 10 104.0 102.0 1.9 <br /> Toluene 0 10.4 10.1 10 104.0 101.0 2-9 <br /> Ethyl Benzene 0 10.5 10.4 10 105.0 .104.0 1.0 <br /> ' Xylenes 0 32.2 31.6 30 107.3 105.3 1.9 <br /> TPH (diesel) 0 165 161 150 110 107 2.4 <br /> TRPH 0 28500 28000 23700 120 118 1.8 <br /> (oil a grease) <br /> I <br /> I % Rec. = CMS - Sample) / amount spiked x '100 <br /> RPD = (MS - MSD) / CMS + MSD) x 2 x 100 <br /> 1 <br />