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Appendix E - Mass/Volume Calculations <br /> AGE-NC Project No. 04-1168 <br /> Page 2 of 2 <br /> 2) For the estimated outer zone (100-1 mg/kg contour area): <br /> Area = 250 ftZ and h = 31 ft (height estimated and averaged from cross <br /> sections) <br /> V,. = 250ft2 . 31 ft-V,00 <br /> V,. = 7,519 ft3 <br /> V, - typical weight of soil - average concentration of contaminant -� <br /> 7,519 ft3 - 100 Ibs/ft3 -.0.0000266 -1, 20 lbs of TPH-g <br /> All together, the weight of gasoline from the above two adsorbed zones are: <br /> 6.9 lbs + 20 lbs -4.26.9 lbs of TPH-g <br /> Convert pounds of TPH-g to volume (gallons) using density of gasoline equal to <br /> 6.25 lbs/gal: <br /> 26.9 lbs _ 6.25 lbs/gal -1, 4.3 gallons of TPH-g <br /> Combining the total volume of TPH-g adsorbed impacted soil, following completion of SVE <br /> remediation, yields a grand total of approximately 7,750 ft' containing an estimated 4.3 <br /> gallons of TPH-g, equivalent to 26.9 pounds of TPH-g. <br /> Advanced GeoEnviron mental,Inc. <br /> I' v <br />