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114 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC I Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> I <br />' Date: 12/22-12/24/94 Matrix, Water <br />' Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 102.9 103 6 100 102.9 103.6 0.6 <br />' Benzene 0 10.5 10 3 10 105.0 103.0 1.9 <br /> Toluene 0 10.7 10.5 10 107.0 105.0 1.9 <br /> Ethyl Benzene 0 10.8 10 5 10 108.0 105.0 2.8 <br /> Xylenes 0 33.4 32 6 30 111.3 108.7 2.4 <br /> TPH (diesel) 0 151 153 150 101 102 0 8 <br /> TRPH 0 25800 25700 23700 109 106 0 4 <br />' (oil & grease) <br />' X Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />