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0 <br /> Appendix D - SVE Volume-Mass Calculations <br /> AGE-NC Project No. 95-0130 <br /> Page 2 of 3 <br /> 2) 08 October 2012 - 09 November 2012 <br /> The average analytical TPH-g concentration for this time interval was determined to be 605 pg/I <br /> (10/12 =850 pg/I, 11/12= 360 pg/I; avg. = 605 pg/1). During this time interval, the average flow rate <br /> was calculated at 1.0 inches of water (2-inch pipe) or approximately 55 cubic feet per minute <br /> (nomograph); the operational period was equal to 769 hours of running time (Table 2). <br /> TPH-g (total petroleum hydrocarbons quantified as gasoline) <br /> C = 605 pg/I = 0.000605 kg/m' <br /> Q = 0.55 inches water = 55 ft'/min <br /> t = 769 hours (32 days) <br /> Converting Q to m'/hour yields: <br /> Q = (55 ft'/min) • (60 min/hour) • (0.0283168 m'/ft') = 93.5 m'/hour <br /> M = C • Q • t = (0.000605 kg/m') • (93.5 m'/hour) • (769 hours) = 43.5 kg of TPH-g <br /> Converting kg of TPH-g to pounds of TPH-g yields: <br /> 43.5 kg of TPH-g • 2.2046 lbs. of TPH-g/kg of TPH-g = 95.9 lbs of TPH-g <br /> Converting pounds of gasoline to gallons of gasoline yields: <br /> 95.9 lbs. of gas • 0.16 gal of gas/lbs. of gas = 15.3 gallons of gasoline <br /> l� <br /> Advanced GeoEnvironmen[al,Inc. <br />