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Appendix E - SVE Volume-Mass Calculations <br /> AGE-NC Project No. 98-0448 <br /> Page 2 of 2 <br /> 1) For the estimated inner zone (> 10000 mg/kg contour line): <br /> Area =40.7 ft and h= 11 ft <br /> V>10,000 =40.7 ft? • 11 ft=447.7 ft' <br /> V>10000 • typical weight of soil • average concentration of contagainant —1 <br /> 447.7 ft' • 100 ft' • 0.012=*i 537 lbs of TPH-g / 0 Z <br /> U1L �v pl�� <br /> 2) For the estimated second zone(>1000 mg/kg contour line): <br /> Area =242 ft' and h=21.5 ft <br /> V»,000 =242 ft' • 21.5 ft-V>10,000 '7 a <br /> V,1,000 =4,755.3 ft',/ <br /> V>,000 • typical weight of soil • average concentration of contaminant —1 <br /> 4,755.3 ft' • 100 lbs/ft' • 0.003817 4 1,815 lbs of TPH-g <br /> 3) For the estimated third zone (>100 mg/kg contour line): <br /> Area = 3219.7 ftZ and h=25.5 ft <br /> V>1w = 3219.7 ft2 - 25.5 ft- (V>10000+V>1000) <br /> V>100 =76,899.4 ft' ✓' ` 3 <br /> ( 4477 +- x,_2S <br /> V>100 • typical weight of soil• average concentration of contaminant -4 <br /> 76,899.4 ft• 100 lbs/ft' • 0.000411 -+ 3,161 lbs of TPH-g <br /> All together, the weight of gasoline from interval zones 1, 2 and 3 is: <br /> 537 lbs+ 1,815 lbs +3,161 lbs —> 5,513 lbs of TPH-g <br /> 1 <br /> Convert pounds of TPH-g to volume (gallons)using density of gasoline equal to 6.25 lbs/gal: <br /> 5,513 lbs)6.25 lbs/gal 4 882 gallons of TPH <br /> Combining the total volume of gasoline at the different concentrations,impacted soil yields a grand <br /> total of approximately 76,899 ft'containing an estimated 882 gallons of TPH-g,equivalent to 5,513 JI L <br /> pounds of TPH-g. <br /> Advanced GwEnvironmental,Inc. <br />