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• MASS CALCULATIONS OF EXTRACTED HYDROCARBONS (Gasoline) <br /> LODI THEATER <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/m3) <br /> Q=extraction flow rate(m3/hr) <br />' t=operational period(hrs) <br /> 1 06-11-02 to 07-17-02 <br /> using C =3,220+1,700/2 g —g/l 0 00246 kg/m3 (TPH-g and BTEX) <br /> Q= 54 5 cfm (average)=92 1 m3/hr <br /> t = 576 (sum of known operation) <br /> 0 00246 • 92 1 • 576= 130 kg of gasoline <br /> 130 kg • 2 2046 lbs/kg=287 7 lbs of gasoline <br />' to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 287 7 lbs of gal • 0 16 gal/lbs=46 gallons of gasoline <br />' 07-17-02 to 08-19-02 <br />'• using C= 1,700 -2,200 /2 µg11 =0 00195 kg/m3 (TPH-g and BTEX) <br /> Q= 53 cfm(average) = 89 5 M3/hr <br /> t = 744 (sum of known operation) <br /> ' 0 00195 • 89 5 • 744 = 129 8 kg of gasoline <br /> 129 8 kg • 2 20461bs/kg=286 2 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> ' 286 2 lbs of gal • 0 16 gal/lbs=45 8 gallons of gasoline <br /> ' 08-19-02 to 09-26-02 <br /> using C=2,200+2,60012 gg/1 = 0 0024 kg/m3 (TPH-g and BTEX) <br /> Q= 51 5 cfm(average)= 87 m3/hr <br /> ' t = 864 (sum of known operation) <br /> 0 0024 • 87 • 864 = 180 kg of gasoline <br /> 180 kg • 2 2046 lbs/kg= 397 71bs of gasoline <br /> ' to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 397 7 lbs of gal • 0 16 gal/lbs=63 6 gallons of gasoline <br /> ' A total of 439 8 kilograms, 971 6 lbs or approximately 155 gallons gasoline(TPH-g)were removed <br /> between I 1 June and 26 September 2002 <br /> ' Advanced GeoEnvironmental,Inc <br />