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MASS CALCULATIONS OF EXTRACTED HYDROCARBONS (Gasoline) <br /> LODI THEATER- 107 North School Street, Lodi, California <br /> IThe 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/rn3) <br /> Q= extraction flow rate(i ?/hr) <br /> t = operational pend(hrs) <br /> 12-JiL01 to 01-29-02 <br />' using C =9,171 + 2,156 +4,257/ 3 µg/1= 0 0052 kg/nr (TPH-g and BTEX) <br /> Q = 35 cfm(average) = 60 nri hr <br /> t = 1008 (sum of known operation) <br /> I 0 0052 • 60 • 1008 = 314 kg of gasoline <br /> 314 kg • 2 2046 lbs/kg= 692 6 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 692 6 lbs of gal • 0 16 gal/lbs = 110 gallons of gasoline <br /> 01-29-02 to 02-11-02 <br /> using C =4,257 + 3,870/2 µg/1= 0 004 kg/m3 (TPH-g and BTEX) <br /> Q= 35 cfm(average) = 60 m'/hr <br />' t =288 (sum of known operation) <br /> 0 004 • 60 • 288 = 69 kg of gasoline <br /> 69 kg • 2 2046 lbs/kg= 152 4 lbs of gasoline <br /> lie to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 1.52 4 lbs of gal . 0 16 gal/lbs = 24 4 gallons of gasoline <br />' 02-11-02 to 03-11-02 <br /> using C = 3,870+3480/2 µg/1= 0 0036 kg/m3 (TPH-g and BTEX) <br /> Q = 30 efrn(average) = 50 m3/hr <br /> t = 718 (sum of known operation) <br /> 00036 - 50 - 718 = 129 24 kg of gasoline <br /> 129 24 kg • 2 2046 lbs/kg=285 lbs of gasoline <br />' to convert Is of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 285 lbs of gal • 0 16 gal/lbs =45 6 gallons of gasoline <br />' 03-11-02 to 04-15-02 <br /> using C = 3480+3,333 / 2 µg/1= 0 0034 kg/m' (TPH-g and BTEX) <br />' Q= 30 cfin(average)= 50 rrP/hr <br /> t = 840(sum of known operation) <br /> 0 0034 • 50 • 840 = 143 kg of gasoline <br />' 143 kg • 2 2046 lbs/kg=315 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> I315 lbs of gal • 0 16 gal/lbs = 50 gallons of gasoline <br /> A total of 230 gallons or 656 kg of gasoline (TPH-g and BTEX) were removed over the first three <br />' months of re-initiation of the SVE system <br /> Advanced GeoEnvironmentaL Inc <br />