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Hydrocarbon Mass Remaining Calculation <br /> Area of Impact - approximately 504 square feet <br /> Vertical limits of hydrocarbon impacted soil - 15-40 ft. bgs - 25 feet <br /> Volume of hydrocarbon-impacted soil = 504 ft2*25 ft. = 12,600 ft3 <br /> Mass of Soil = 12,600 ft' * 125 lbs/ft3 = 1.575 x 106 lbs of hydrocarbon-impacted soil <br /> Mass of Hydrocarbons Remaining in Soil <br /> 1.575 x 106 lbs of impacted soil * .453 lbs/kg * 130 mg hydrocarbons/kg soil = 204 Its <br /> hydrocarbons <br /> 204 lbs hydrocarbon * 1 gallon gasoline/6.67 pounds = 30 gallons gasoline equivalent <br /> `i <br /> 0072 d os.rpt 4 <br /> ❑❑® GROUNDWATER <br /> ❑❑❑ TECHNOLOGY <br />