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T110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 12/20/94 Matrix, water <br />' Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> 1 <br /> TPH (gas) 0 0 101.8 104.0 100 101.8 104.0 2.2 <br />' Benzene 0 11.5 10.9 10 115 0 109.0 5.4 <br /> Toluene 0 11 3 10.8 10 113.0 108.0 4.5 <br /> Ethyl Benzene 0 11.3 10.8 10 113.0 108.0 4. 5 <br />' Xylenes 0 34.5 32.8 30 115.0 109.3 5. 1 <br /> TPH (diesel) 0 162 161 150 108 107 0 7 <br /> r <br /> TRPH 0 24500 24100 23700 103 102 1 6 <br />' (oil & grease) <br /> 1 <br /> % Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + NSD) x 2 x 100 <br />