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Appendix D - SVE Volume-Mass Calculations <br /> AGE-NC Project No. 95-0130 <br /> Page 2 of 3 <br /> 2) 23 April 2013 - 23 May 2013 <br /> The average analytical TPH-g concentration for this time interval was determined to be 170 pg/I <br /> (04/13 =200 pg/I, 05/13= 140 pg/l; avg. = 170 pg/I). During this time interval, the average flow rate <br /> was calculated at 1.7 inches of water (2-inch pipe) or approximately 72 cubic feet per minute <br /> (nomograph); the operational period was equal to 721 hours of running time (Table 2). <br /> TPH-g (total petroleum hydrocarbons quantified as gasoline) <br /> C = 250 pg/I = 0.000170 kg/m' <br /> Q = 1.7 inches water = 72 ft'/min <br /> t = 721 hours (30 days) <br /> Converting Q to m3/hour yields: <br /> Q = (72 ft'/min) • (60 min/hour) • (0.0283168 m'/ft') = 122.3 M3/hour <br /> M = C • Q • t = (0.000170 kg/m') • (122.3 M3/hour) • (721 hours) = 15 kg of TPH-g <br /> Converting kg of TPH-g to pounds of TPH-g yields: <br /> 15 kg of TPH-g • 2.2046 lbs. of TPH-g/kg of TPH-g = 33 lbs of TPH-g <br /> Converting pounds of gasoline to gallons of gasoline yields: <br /> 33 lbs. of gas • 0.16 gal of gas/lbs. of gas = 5.3 gallons of gasoline <br /> Advanced CeoEnvironnnental,Inc. <br />