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Appendix B - Volume-Mass Calculations <br /> AGE Project No. 08-1633 <br /> Page 3 of 3 <br /> V,00 • typical weight of soil • average concentration of contaminant -4 <br /> 4,820 ft3 • 100 lbs/ft3 - 0.000550 -> 265 lbs of TPH-g <br /> 3) For the estimated middle zone (1-100 mq/kq contour area): <br /> Area = 1,701 ft2 and h = 20 ft <br /> V, = 1,701 ft2 • 20 ft - V,00 <br /> V, = 19,760 ft3 <br /> V, • typical weight of soil • average concentration of contaminant 4 <br /> 19,760 ft3 • 100 Ibs/ft3 • 0.000012 -> 23 lbs of TPH-g <br /> All together, the weight of TPH-g equals: <br /> 4,126 + 273 + 63 + 1,195 + 265 + 23 lbs -4 5,945 lbs of TPH-g <br /> Converting pounds of TPH-g to volume (gallons) using density of TPH-g equal to <br /> 6.25 lbs/gal: <br /> 1,684 lbs + 6.25 lbs/gal -> 951 gallons of TPH-g <br /> Advanced GeoEnvironmental,Inc. <br />