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1 - - <br /> Mass-Volume Calculation of Dissolved MTBE - 21 April to 14 May 2003 <br /> FLAG CITY CHEVRON - 6421 Capitol Avenue, Lodi, CA <br /> 1 Assumptions <br />' • A total volume of 245,406 gallons was extracted from wells EW-4, EW-5,EW-7 and EW-8 <br /> between 21 April and 14 May 2003 (based on effluent flow meter observations) <br /> • Data collected from the pump and treat influent water samples were representative ofgeneral <br /> extracted ground water conditions <br />' Oneallon of water weighs ghs 8 337 lbs /gal at 60'F, so the mass of processed water is given by <br />' MWater= (245,406 gallons)(8 337 lbs/gal) =2,045,950 lbs. processed water <br />' Multiplying the mass ofthe processed water by the average MTBE concentration(04-21-03=49gg/L <br /> and 05-14-03 = 37 pg/L, avg = 43 gg/L) yields the approximate mass of MTBE removed from <br /> processed water <br />' MMTBE = (2,045,950 lbs)(0 000000043) = 0.09 lbs MTBE <br />� . A converstion factor of 0 4536 kg/lb can be used to convert pounds of MTBE to grams of MTBE <br /> MMTBE = 0 09 lbs MTBE (0 4536 kg/lb)= 41 g of MTBE <br /> IAdvanced GeoEnvironmentai,Inc <br /> I <br />