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�` �;f MASS CALCULATIONS OF <br /> EXTRACTED HYDROCARBON'S(Gasoline) <br /> Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stockton, California <br /> f <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/m') <br /> Q—extraction flow rate(m'/hr) <br /> �'- t=operational period(lu-s) <br /> The first sampling interval calculation is provided as an example. <br /> 14 September to 20 October 2000 <br /> using: C=890 +730µg11/2 =0.00081 kg/rn' <br /> Q=60 efin(average)= 101.4 m'/hr <br /> t =864 hrs(sum of known operation) <br /> 0.00081 • 101.4 • 864—70 kg of gasoline <br /> =i <br /> 70 kg•2.2046 lbs/kg= 156.5 lbs of gasoline <br /> to convert lbs of gasoline to galldns of gasoline, use 0.16 ga 1/1bs: <br /> a 156.5 lbs of gal • 0.16 gal/lbs=.25 gallons of gasoline <br /> E.<= Time Frame C Q t Gallons Removed <br /> (µg11)average to (m'/hr) (hours) <br /> r-• <br /> 09-14-00. 890+730µg/1/2 = 101.4 864 25 <br /> to 0.00081 kg/m3 <br /> 10-20-00 <br /> ==' Soil. Vapor Extraction Data <br /> ' Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stoelcton, California <br /> I :_f Date Time Flow(CFM) Vacuum(") Inlet <br /> 09-14-2000 1:15 PM 60 14 77 <br /> j 10-20-2000 1:45 60 26 14 <br /> ..f <br /> Advanced GeoEnvironmental,Inc.. <br />