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`i <br /> 1 <br /> MASS CALCULATIONS OF <br />' EXTRACTED 1-IYDROCARBONS (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/m3) <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 /> 09-26-00 and 10-20-00 <br />' using: C = 4,2.00 µg11 + 2,300 ,ug/1 / 2 = 0.00325 kg/m3 <br /> Q = 150 scfm (average) =254 m3/hr <br /> t = 1035 hrs (sum of known operation) <br /> 0.00325 • 254 • 1035 = 855 kg of gasoline <br /> 855 • 2.2046 lbs/kg= 1885 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0.16 gal/lbs: <br /> ' 1885 lbs of gal • 0.16 gal/lbs = 302 gallons of gasoline <br /> t <br /> Time Frame C Q t Gallons <br /> (,u /1)/kg/m3 (M3/hr) (hours) Removed <br /> 09-26-00 and 4,200 ,ug/l + 254 1035 302 <br /> 10-20-00 2;300 ,ug/1/ 2 = <br /> ' 0.00325 kg/m3 <br /> 10-20-00 and 2,300 µg/l + 313 785 200 <br /> ' 11-27-00 2,300 ,ug/l/2 = <br /> 0.0023 kg/m3 " <br /> Total of 502 gallons of gasoline removed between 09=2600 and 11-27-00: <br /> 1 • <br /> Advanced GeoEnvironmental,Inc. <br />