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' MASS CALCULATIONS <br /> The hydrocarbon mass removed durmg the operating penod can be calculated using the following equation <br /> M=C•Q•t <br />' where M=cumulative mass recovered(kg) <br /> C=vapor concentration(kg/&) <br /> Q=extraction flow rate(m'/hr) <br />' t=operational period(hrs) <br /> 29 August 2000 to 07 September 2000 <br />' using C= 180 gg4(average)=0 0002 kg/m3 <br /> Q= 207 cfm(average)=352 m3/hr <br /> t =200 firs(total of known operation) <br /> 0 0002.352 •200= 14 1 kg of gasoline <br /> 14 0 kg•2 2046 lb"g= 31 0 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline,use 0 16 gal/lbs <br />' lbs of gal•0 16 gal/lbs=5 0 gallons of gasoline <br /> 07 September 2000 to 28 September 2000 <br />' using C= 180 gg/l(average)=0 0002 kg/m' <br /> Q= 196 cfm(average)=333 m'/hr <br /> t = 499 hrs(total of-known operation) <br />' 0 0002 •333 •499= 33 kg of gasoline <br /> 33 kg•2 2046 lbs/kg=73 lbs of gasolene <br />' to convert lbs of gasolene to gallons of gasoline,use 0 16 gal/lbs <br />' Is of gal•0 16 gal/lbs= 12 gallons of gasoline <br />' Total of 17 gallons of gasoline removed during the operational period <br /> I <br /> I <br /> Advanced GeoEnvuomuentA Inc <br />