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MASS CALCULATIONS OF <br /> EXTRACTED HYDROCARBONS (Gasoline) <br /> Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stockton, California <br /> The hydrocarbon mass removed during the operating period can be calculated using the following <br /> equation: 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 /> r:<? t=operational period(hrs) <br /> The first sampling interval calculation is provided as an example. <br /> 27 November 2000 to 21 December 2000 <br /> using: C= 550+ 370µg/1/2 =0.00046 kg/m' <br /> Q= 60 cfm(average)= 101.4 m'/hr <br /> t = 546 hrs. (sum of operation hours) <br /> 0.00046 . 101.4 . 546—26.9 kg of gasoline <br /> �_. ,%> :•; 26.9 kg - 2.2046 lbs/kg= 59.3 lbs of gasoline <br /> toconvert lbs of gasoline to gallons of gasoline, use 0.16 gal/lbs: <br /> 59.3 lbs of gal • 0.16 gal/lbs =9.5 gallons of gasoline <br /> k�1 <br /> Time Frame C ..-Q t Gallons <br /> 1 (µgh)average to (m3Lhr) (hours) Removed <br /> k m' <br /> F' 11-27-00 550+370µg/1/2 101.4 546 9.5 <br /> F y` to = 0.00046 kg/m3 <br /> 12-21-00 <br /> 12-21-00 160+ 370µg1ll2 101.4 576 5.6 <br /> to =0.00027 kg/m3 <br /> 01-23-00 <br /> Advanced GeoEnviron mental,Inc. <br /> `I <br />