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Mass-Volume Calculation of Dissolved MTBE - 25 June 2003 to 25 July 2003 <br /> • FLAG CITY CHEVRON - 6421 Capitol Avenue, Lodi, CA <br /> Assumptions <br /> • A total volume of 346,816 gallons was extracted from wells EW-4,EW-5,EW-7 and EW-8 <br /> between 25 June 2003 and 25 July 2003 (based on effluent flow meter observations) <br /> • Data collected from the pump and treat influent grab ground water samples were <br /> representative of general extracted ground water conditions ` <br /> One gallon of water weighs $ 337 lbs /gal at 60°F, so the mass of processed water is given by <br /> Mwa,er= (346,816 gallons)(8 337 lbs /gal) =2,891,405 lbs. processed water <br /> Multiplying the mass of the processed water by the average MTBE concentration(06-25-03=17 gg/L <br /> and 07-25-03 = 19 µg/L, avg = 18 lig/L) yields the approximate mass of MTBE removed from <br /> processed water <br /> MMTBE= (2,891,405 lbs)(0 000000018) = 0.05 lbs MTBE <br />' . A converstion factor of 0 4536 kg/lb can be used to convert pounds of MTBE to kilograms of <br /> MTBE <br /> MMTBE = 005 lbs MTBE (0 4536 kg/lb) =23 g of MTBE <br /> • Advanced GeoEnvironmental,Inc <br /> 1 <br />