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MASS CALCULATIONS OF <br /> EXTRACTED HYDROCARBONS (Gasoline) <br /> Mel Bokides Petroleum, Inc. <br /> 501 W. Lodi Avenue, Lodi, 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 (m3/hr) <br /> t=operational period (hrs) <br /> The calculation for the first time period is provided as an example for the determination of mass/ <br /> volume of hydrocarbons removed over the reporting period. <br /> 04-05-01 to 05-10-01 <br /> using: C = 1,600µg11+ 1,768 µg/l/2 =0.00168 kg/m' <br /> Q= 150 scfm(average) =254 m'/hr <br /> t = 840 hours(sum of known operation) <br /> 0.0017 kg/m' • 254 m'/hr • 840 hours= 363 kg of gasoline <br /> lie 363 kg of gasoline • 2.2046 lbs/kg= 800 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0.16 gal/lbs: <br /> 800 lbs of gal • 0.16 gal/lbs= 128 gallons of gasoline <br /> •;Fp. 1441, <br /> WM <br /> 04-05-01 : 100 µgll + 254 840 '` 128 <br /> to 05-10-01 1,768 ,ag/l/ 2 <br /> 0.0017 kg/m' <br /> 05-10-01 to 1,768 ,ug/l + 245 980 130 <br /> 06-21-01 1,300 µg11 l 2= <br /> 0.0015 kg/rn' <br /> 06-21-01 to 1,300 4g/1 + 210 600 48 <br /> 07-12-01 870 µg11/2 = <br /> 0.001 kg/mn <br /> 07-12-01 to 870,ug/l+ 245 600 41 <br /> a8-08-01 800 4g/1 /2 = <br /> 0.0008 kg/m' <br /> 1 <br /> Approximately 347 gallons of gasoline removed between May and August 2001. <br /> ' Advanced GeoEnvironmental,Inc. <br />