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' . Mass-Volume Calculation of Dissolved Hydrocarbons <br /> Chapin Bros , Inc <br /> ' 1766 Monte Diablo Avenue, Stockton, California <br /> Assumptions <br /> 1 • A total volume of 226,147 gallons was extracted from between 02 April and 30 May 2002 <br /> based on effluent flow meter observations <br /> t • Data collected from the influent pump and treat grab water samples were representative of <br /> general exti acted ground water conditions <br /> One gallon of contains 3 785 liter so the volume of processed water expi essed as liters is <br /> V= (226,147 gallons)(3 785 l/gal) = 855,966.4 liter processed water <br /> ' • Multiplyingthe volume of the processed water b the cumulative avec a e benzene <br /> ' p Y g <br /> t concentration yields (1,300 µg/l, 58 µg/1, 300 µg/1, and 1,600 µg/1) the approximate mass of <br /> BTEX removed from processed water <br /> MBenzene — ( 855,966.4 liter)(814 5 µg/1) = 7 x 10$µg Benzene <br /> MBCnze as grams 697 g Benzene <br /> M$e7z,„e as kilogi ams 0.69 kg Benzene <br /> A conversion factor of 2 205 lb/kg can be used to convert Benzene to pounds <br /> ' MBen,,,ne = 0 69 kg Benzene (2 205 lb/kg) = 2.53 lbs of Benzene <br /> ' • Multiplying the volume of the processed water by the cumulative average TPH-g <br /> concentzation yields (15,000 µg/l, 940µg/l, 6,800 µg/l, and 27,000 µg/1) the approximate <br /> mass of TPH-g removed from processed water <br /> ' MTPH g= ( 855,966.4 liter)(1 2,43 5 µg/i) = 12.17 x 109 gg TPH-g <br /> MTPH-g as grams 12,170 g TPH-g <br /> MTPH-g as kilogi ams 12.7 kg TPH-g <br /> A conversion factor of 2 205 lb/kg can be used to convert TPH-g to pounds <br /> MTPH_g= 12 7 kg TPH-g (2 205 lb/kg) = 27 lbs of TPH-g <br /> 1 <br /> ' Advanced GeoEnvironmental,Inc <br />