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I <br />' VOLUME OF TPH-d IN GROUND WATER <br /> t� <br /> (MASS CALCULATION) <br />' Cherokee Truck Stop <br /> 3535 East Cherokee Road, Stockton, California <br />' VOLUME CALCULATIONS <br /> Approximate area of TPH-d-impacted ground water= 40,320 ft3 <br />' Porosity of silt z 20% <br /> Volume of TPH-d-impacted ground water = 40,320 ft3 - 8,064 ft3 = 32,256 ft3 <br />' 32,256 ft3 x 7 48 gallons/ft3 = 241,292 gallons impacted water <br /> 241,292 gallons = 913,390 liters (1) <br />' MASS CALCULATIONS <br />' Mass of contaminants = volume of contaminated water x average concentration of TPH-d <br /> 913,390 1 x 165 nucrograms (gg)/l= 150 kilograms (kg) TPH-d <br />' 150 kg = 331 pounds TPH-d <br /> 331 pounds TPH-d/ (7 00 pounds TPH-d/l gallon TPH-d) — 47.3 gallons TPH-d <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br />