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i f <br /> Volume-Mass Calculations <br /> River City Petroleum and Connell Motor Lift Truck <br /> Page 2 of 2 <br /> 10 October 2005 to 25 November 2005 <br /> 1) The average analytical TPH-g concentration for this time interval was determined to be 610µg/1([10/10/05+ <br /> 11/25105]—2=[320+900]—2=610µg11) The average flow rate was calculated at 280 cubic feet per minute <br /> (nomograph) The operational period was 771 hours,running time was reduced due to limited operational times <br /> (Table 1) <br /> C =610µg/1=0 00061 kg/m3 <br /> Q =280 ft3/min <br /> t =771 hours <br /> Converting Q to m3/hour yields <br /> Q=(280 fe3/min)•(60 min/hour)• (0 0283168m3/ft3)=473 2 m3/hour <br /> M=C•Q • t=(0 00061 kg/m3),, (473 2 m3/hour) • (771 hours)=222 kg of gasoline <br /> Converting kg of gasoline to pounds of gasoline yields <br /> 222 kg of gas• 2 2046 lbs/kg=490 lbs of gasoline <br /> Converting pounds of gasoline to gallons of gasoline yields <br /> 490 lbs of gas• 0 16 gal of gas/lbs of gas = 78.5 gallons of gasoline <br /> 25 November 2005 to 28 December 2005 <br /> 1) The average analytical TPH-g concentration for this time interval was determined to be 450 µg/l <br /> ([11/25/05+12/28/051—2=[900+<501—2=450µg/1) The average flow rate was calculated at 345 cubic feet <br /> per minute(nomograph),the operational period was reduced due well installation,equal to 561 hours of running <br /> time(Table 1) <br /> C =450µg11=0 00045 kg/m3 <br /> Q =345 ft3/min <br /> t =561 hours <br /> Converting Q to m3/hour yields <br /> Q=(345 ft3/min)•(60 min/hour)• (0 0283168m3/ft3)=583 m3/hour <br /> M=C• Q• t=(0 00045 kg/m3)• (583 m3/hour) • (561 hours)= 147 kg of gasoline <br /> Converting kg of gasoline to pounds of gasoline yields <br /> 147 kg of gas • 2 2046 lbs/kg=324 5 lbs of gasoline <br /> Converting pounds of gasoline to gallons of gasoline yields <br /> 324 5 lbs of gas • 0 16 gal of gas/lbs of gas = 519 gallons of gasoline <br /> Advanced GeoEnvironmental,Inc <br />