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' Mass-Volume Calculation of Dissolved MTBE - 21 November 2002 to 05 December 2002 <br /> • FLAG CITY CHEVRON - 6421 Capitol Avenue, Lodi, CA <br />' Assumptions <br />' 0 A total volume of273,930 gallons was extracted from wells EW-4,EW-5,EW-9 and EW-10 <br /> between 21 November and 05 December 2002 (based on effluent flow meter observations) <br />' • Data collected from the pump and treat influent water samples were representative of general <br /> extracted ground water conditions <br /> I <br /> One gallon of water weighs 8 337 lbs/gal at 60°F, so the mass of processed water is given by <br /> (273,930 gallons)(8 337 lbs /gal) = 2,283,754 lbs. processed water <br />' Multiplying the mass of the processed water by the average MTBE concentration (11-21-02= <br /> 13 Ag/L and 12-05-02 = 21 tig/L, avg = 17 µg/L) yields the approximate mass of MTBE removed <br /> from processed water <br /> MMTBE = (2,283,754 lbs)(0 000000017) = 0.04 lbs MTBE <br /> IA converstion factor of 0 4536 kg/lb can be used to convert pounds of MTBE to grams of MTBE <br /> MMTBE = 004 lbs MTBE (0 4536 kg/lb)= 18 g of MTBE <br /> I <br /> Advanced GeoEnvironmental,Inc <br />