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M, MASS CALCULATIONS OF <br /> EXTRACTED HYDROCARBONS (Gasoline) <br /> Elkhorn Country Club <br /> !; 1050 Elkhorn Drive, Stockton,California <br /> The hydrocarbon mass.removed during the operating period can be calculated using the following equation: <br /> 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 /> ^_1 The first sampling interval calculation is provided as an example. <br /> 03 January 2000 to 07 February 2000 <br /> using: C=2,300/.1,000/2 gg/1=0.001650 kg/m} <br /> Q=70 cfm(average) 41:2 m'/hr <br /> t =420 hrs (sum of known operation) <br /> =� 0,00165 •41,2 •420=28 kg of gasoline <br /> 28 kg•2.2046 lbs/kg=63 lbs of gasoline <br /> to convert lbs of gasoline to gallons of gasoline, use 0.16 gal/lbs: <br /> � 1 4 - 63 lbs of gal• 0.16 gal/lbs= 10 gallons of gasoline <br /> i Time Frame C Q t Gallons Removed <br /> (mgll) average to (m3/hr) (hours)- <br /> kg/rri' <br /> 01-03-00 to 2,560+2,690/2= 41.2 504.0 10 <br /> 02-07-00 0.002625 <br /> 02-07-00 to 1,000+430/2— 41.2 355.6 3.7 <br /> 04-23-00 0.000715 <br /> 04-23-00 to 430+40012= 41.2 190.5 1.1 <br /> 'k 05-31-00 0.0004 <br /> 05-31-00 to 300+45012= 41.2 45.5 0.25 <br /> 06-28-2000 0.000375 <br /> Total of 15 gallons of gasoline removed. <br /> : 3 <br /> Advanced CcoEnvironmental,Inc. <br />