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{ MASS CALCULATIONS OF <br /> .r <br /> " EXTRACTED HYDROCARBONS (Gasoline) <br /> Elkhorn.Country Club <br /> 1050 Elkhom Drive, Stockton, California <br /> The hydrocarbon mass removed during the operating period can be calculated using the following equation: <br /> M— C-Q,t <br /> where: M=cumulative mass recovered (kg) <br /> = C—vapor concentration(kg/nz3) <br /> Q=extraction flow rate(m3/hr) <br /> t=operational period(hrs) <br /> The fust sampling interval calculation is provided as an example. <br /> 14 September to 20 October 2000 <br /> using: C= 890+730pg/l/2 =0.00081 kg/m3 <br /> Q—60 cfm(average)— 101.4 m'/llr <br /> ?: - t = 864 hrs(sum of known operation) <br /> 0.00081 • 101.4. 864—70 kg of gasoline <br /> 70 kg• 2.2046 lbs/kg— 156.5 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0.16 gal/lbs: <br /> 156.5 lbs of gal - 0.16 gal/lbs=25 gallons of gasoline <br /> Tuno l rmr� Q ..allovd <br /> uaer7g�tby <br /> ) fz <br /> ..:... <br /> 09-14-00 890+730,zg/1/2 = 1014 864 25 <br /> to 0.00081 kg1rW <br /> 10-20-00 <br /> =k <br /> Soil Vapor Extraction Data <br /> Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stockton, California <br /> 09-14-2000 1:15 PM 60 14 77 <br /> 10-20-2000 1.45 60 26 14 <br /> i <br /> Advanced GeoEnvu-onmental,Inc. <br />