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1 <br />' Mass-Volume Calculation of Dissolved MTBE - 03 January to 02 February 2001 <br /> FLAG CITY CHEVRON - 6421 Capitol Avenue, Lodi, CA <br /> IAssumptions <br />' • A total volume of 791,065 gallons was extracted from wells EW-2, EW-4, EW-5, EW-6, <br /> EW-7, EW-8, EW-9 and EW-10 between 03 January 2001 and 02 February 2001 (based on <br /> effluent flow meter observations between 03 January and 02 February 200 1) <br />' • Data collected from the pump and treat influent and extraction well-head grab ground water <br /> samples were representative of general extracted ground water conditions <br /> One cubic foot of water contau7s 7 48 gallons, conversely, one gallon of water is equivalent to <br />' 0 1337 cubic feet, so the volume of processed water is given by <br /> V= (791,065 gallons)(0 1337 ft/gal) = 105,765 ftp processed water <br /> One gallon of water weighs 8 337 lbs/gal at 60'F, so the mass of processed water is given by* <br /> M,,,,,r=(791,065 gallons)(8 337 lbs/gal) = 6,595,109 lbs. processed water <br /> Multiplying the mass of the processed water by the average MTBE concentration (01-03-01= <br /> 240,ug/L and 02--02-01 = 150 ,ug/L, avg = 195 µg/L) yields the approximate mass of MTBE <br /> lie removed from processed water <br /> MMTI,,� = (6,595,109 lbs)(0 000000195) — 1.29 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 /> Mm7mE= 129 lbs MTBE (0 4536 kg/lb) =585 g of MTBE <br /> Advanced GeoEnvsronrnental,Tnc. <br /> I <br />