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ti HYDROCARBON-IMPACTED SOIL <br />' VOLUME-MASS ASSUMPTIONS AND CALCULATIONS <br />' 1) Approximate volume of petroleum hydrocarbon impacted soil <br /> (z 15 feet bsg to ;-- 30 feet bsg) <br />' VCO1e = 1 0472r2 -h -! 1 0472 (10 ft2) - 15 ft = 1,571 ft' 58 yd' <br /> Converting 58 yd' to cm3 yields approximately 44,421,755 cm3 Using 15 g/cm3 as the weight of <br />' soil, the total weight of contaminated soil is approximately 66,632,633 g <br /> Using 14,000 parts per million as the"average"concentration of gasoline from 15 feet bsg to 30 feet <br />' bsg, the volume of gasoline is <br /> weight of soil - average concentration -i 66,632,633 g - 0 014000=932,857 g of gasoline <br />' Convertin ram <br /> Converting grams of gasoline to volume of gasoline(gallons)using density of gasoline to equal 0 8 <br />' 932,857 g of gasoline - 0 8cm3/g = 1,166,071 cm3 <br /> 1,166,071 crn3 - (1 gallon- 3,785 cm3) ;:� 308 gallons of gasoline <br /> 2) Approximate volume of petroleum hydrocarbon ocarbon impacted soil <br /> (- 30 feet bsg to =- 45 feet bsg) <br /> V fr„swm of cone= 10472 -h (R2 +Rr - r2) ♦ 10472 -15 ft (15 ft2+10 ft -15 ft - 10 ft2) <br /> 4 10472 • 4,125 ft' <br /> 4 4,320 ft' - 160 yd' <br /> Converting 160 yd3 to cm3 yields approximately 122,168,311 cm3 Using 1 5 g/cm3 as the weight of <br /> soil, the total weight of contaminated soil is approximately 183,252,467 g <br /> Using 1 1 parts per million as the "average" concentration of gasoline from 30 feet bsg to 45 feet <br /> bsg, the volume of gasoline is <br /> weight of soil - average concentration -0 183,252,467 g - 0 0000011 = 202 g of gasoline <br /> Converting grams of gasoline to volume of gasoline(gallons)using density of gasoline to equal 0 8 <br /> 202 g of gasoline- 0 8cm3/g = 252 cm3 <br /> f 252 cm3 - (1 gallon- 3,785 cm) Z 0.067 gallons of gasoline <br />