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- 4 <br /> APPENDIX D <br /> , L a <br /> ' Volume-Mass Calculation of Dissolved Hydrocarbons „ <br /> Fomael STOCK-FON PLATING Facility , , <br /> 632 South El Doi ado Street, Stockton, California " <br /> Assumptions , <br />' A total volume of 273,247 gallons was ext>acted from between 21 Apnl and 18 August 2004 <br /> based on effluent flow meter obsei vations t <br /> • Data collected ltom the influent pump and treat grab water samples were representative of <br /> general extracted ground water conditions <br />' One gallon contains 3 785 liter so the volurne of processed water expressed as liters is <br /> ^ , <br /> V= (273,247 gallons)(3 785 1/gal) = 1,034,240 liter processed water <br /> Total Petroleuni Hydrocarbons as Gasoline TPH- <br /> • Multtplylug the volume of the pioccssed water,by ,the cumulative average TPH-g <br />' concenttatton between Apt►1 and August yields the approximate mass of TPH-g removed <br /> from processed water , <br />'` [5,400 µg11+5,100 ug/1 -5,400 ug/1+5,900 pg/1+9,100�g/1} /S = 6,180 µg11 <br /> 1034,240 liter • 6,180 u 1 TPH- ) = 6.4 x 109 µg TPH-g <br /> Mass,h,I�— ( , ) { gI g , <br /> = 6.4 kg TPH-g <br /> A convei Ston factor of 2 205 lb/kg c,m be used to convert TPH-g to pounds <br /> MassTI'I I,,= lcg g)f'PH- P• (2 205,tb/kg) = l4 lbs of TPH-g <br /> (6 4 <br /> s <br /> ' Benzene C <br /> • y the cumulative average benzene <br /> Multiplying the volume of the processed water by <br /> concentiation between April and August yields the approximate mass of benzene removed <br /> ' from processed water <br /> ` <br /> J820 pg/1+640 µg/1+740 µg/1+680 pg/1+1,100 µg11} /5 = 795 µg/1 <br /> f' 1V1aSSl3�.ivLnc (_' 1>034,240 liter • (795 pg/l benzene 8.2 x 108µg Benzene <br /> = 0.82 kg Benzene <br /> ' A convei sion fact.oi of 2 205 lb/kg can be Wised to convert Benzene to pounds <br /> 1Vigen, ne — (0 82 k;Benzene) • (2 205 lb/kg) = 181 lbs of Benzene I <br /> < < 1 <br />