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' VOLUME OF TPH-g IN GROUND WATER <br /> • (MASS CALCULATION) <br />' Cherokee Truck Stop <br /> 3535 East Cherokee Road, Stockton, California <br />' VOLUME CALCULATIONS <br />' Approximate area of TPH-g-impacted ground water= 2 5,3 50 ft3 <br /> Porosity of silt � 20% <br /> Volume of TPH-g-impacted ground water= 25,350 W - 5,070 ft3= 20,280 ft3 <br /> 20,280 ft3 x 7 48 gallons/ft3 = 151,694 gallons impacted water <br /> 151,694 gallons = 574,224 liters (1) <br />' MASS CALCULATIONS <br />' Mass of contaminants = volume of contaminated water x average concentration of TPH-g <br /> 574,224 x 861 micrograms (gg)/1= 0 494 kilograms (kg) TPH-g <br /> 0 494 kg = 0 109 pounds TPH-g <br /> 0 109 pounds TPH-g/ (6 17 pounds TPH-g/1 gallon TPH-g) = 0.02 gallons TPH-g <br /> I <br /> 1 <br /> I <br /> I <br /> I <br />