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i <br /> IQC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 07/22/93 Matrix: Soil <br /> IConcentration (mg/kg) % Recovery <br /> Analyte Amount RPD <br /> ISample MS MSD Spiked MS MSD <br /> I TPH (gag) 0.000 1.610 1.623 2.03 79 80 0.8 <br /> Benzene 0.000 0.178 0.178 0.2 89 89 0.0 <br /> Toluene 0.000 0.180 0.180 0.2 90 90 0.0 <br /> Ethyl Benzene 0.000 0.176 0.174 0.2 88 87 1.1 <br />' Xylenes 0.020 0.522 0.520 0.6 84 83 0.4 <br /> TPH (diesel) 0 305 311 300 102 104 2.1 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> I <br />' % Rec = (MS - 5amp[e) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> I ' <br /> I <br />