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MASS CALCULATIONS OF EXTRACTED HYDROCARBONS (Gasoline) <br /> LODITHEATER <br /> 107 North School Street, Lodi, California <br /> The hydrocarbon mass removed during the operating period can be calculated using the following equation <br /> M = C•Q•t where <br /> M = cumulative mass recovered(kg) <br /> C =vapor concentration(kg/m?) <br /> Q = extraction flow rate (nPbr) <br /> It= operational period(hrs) <br />' 09-26-02 to 10-28-02 <br />' using C =2,600+1,600/2 µg11= 0 0021 kg/m? (TFH-g) <br /> Q= 53 cfm(average) = 89 57 m3/hr <br /> t = 768 (sum of known operation) <br />' 0 0021 • 89 57 • 768 = 144 5 kg of gasoline <br /> 144 5kg • 2 2046 lbs/kg= 318 5 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 318 5 lbs of gal • 0 16 gal/lbs = 50 9 gallons of gasoline <br />' Advanced GeoEnvironmentai,Inc <br /> 1 <br />