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TABLE 4 <br /> SOIL VAPOR EXTRACTION FIELD DATA <br /> Art& Artists <br /> 204 E Lodi Avenue, Lodi, California <br />' Engine line Exhaust Exhaust fuel <br /> Date Time Vapors Pre-catalytic Post-catalytic consumed <br /> Hours (PPM) conversion conversion <br />' 6-28-96 1240 19939 1 --- --- --- 445 <br /> 7-10-96 1000 202259 119 27 16 440 <br />' 7-17-96 1540 20400 7 180 20 10 4 60 <br /> ' 7-31-96 13 30 207370 112 14 12 470 <br /> --- indicates the IC unit„as not operational and the system was restated N ithout measuring Intal a vapor concentrations <br /> * Extraction switched to MW-I after air sample collection <br /> ' ** Extraction switched to RW-I <br /> u <br /> s� <br /> x <br />