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i <br /> iMASS CALCULATIONS OF <br /> . EXTRACTED HYDROCARBONS (Gasoline) <br /> i LODITHEATER <br /> 107 North School Street, Lodi, California <br /> IThe hydrocarbon mass removed during the operating period can be calculated using the following <br /> equation M= C•Q•t <br /> Iwhere M = cumulative mass recovered (kg) <br /> C = vapor concentration (kg/m') <br /> IQ = 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 /> I10-05-00 to 10-20-00 <br /> using C = 16,000 + 20,000/ 2 µg/1 = 0 018 kg/m3 (TPH-g and BTEX) <br /> Q = 65 cfm (average) = 110 m3/hr <br /> t — 196 (sum of known operation) <br /> I0 018 • 110 • 196 = 388 kg of gasoline <br /> 388 kg • 2 2046 lbs/kg = 855 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0 16 gal/lbs <br /> 855 lbs of gal • 0 16 galllbs = 137 gallons of gasoline <br /> I <br /> Time Frame C Q t Gallons <br /> (gg11)1kEVW (uNhr) (hours) Removed <br /> I10-05 to 10-20 16,000 µgll + 110 196 137 <br /> 20,000 4gll/ 2 = <br /> I 0 018 kg/m3 <br /> 10-20 to 11-27 20,000 gg/1 + 110 325 302 <br /> 27,000 gg/l/2 = <br /> I0 024 kg/m' <br /> ITotal of 439 gallons of gasoline and BTEX removed between 10-05-2000 and 11-27-2000 <br /> I <br /> I4dvanced GeoEmsromne'101,Inc <br />