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f <br /> IEIS <br /> E Toluene: <br /> 1. Average Concentration <br /> f <br /> o Minimum extent - (4.5pfm + 43ppm 0.36ppm + 170ppm + <br /> 1600ppm + 120ppm + 1ppm)/(7 ea) = 275.98ppm. <br /> k " o Maximum extent -- [4.5ppm + 43ppm + 0.36ppm + 170ppm + <br /> 1600ppm + 120ppm + .12ppm + .09ppm + 7(1ppm) ]/(15 ea) _ <br /> 129.67ppm. <br /> 2. Volume of Excavation <br /> As calculated for Benzene <br /> ,. 3. lbs. of Toluene emitted from site (volatilization percentage F <br /> = 77%) i <br /> o Minimum extend: - 910,000 lbs, x .00027698 x .77 = <br /> 194.1 lbs. <br /> o Maximum extent - 9,100,000 lbs x .0003.2967 x .77 = s <br /> w 908.6 lbs. <br /> 4. lbs. per day .for excavation project <br /> o Minimum extent - 194.1 lbs/(3 days) - 64.7 lbs/day. <br /> rte; o Maximum extent - 908.6 lbs/(8 days) = 113.57 lbs/day. <br /> ' a i <br /> Ethyl Benzene: § <br /> Y <br /> .� I. Averaga Concentration <br /> o Minimum extent (26ppm + 100ppm + 0.17ppm + 55ppm + <br /> 720ppm + 91ppm + 1ppm)/(7ea) = 327.61ppm. <br /> 0 Maximum extent - [26ppm + 100ppm + 0.17ggm + 55ppm + <br /> 720ppm + 91ppm + 9(lppm)]/(15ea) = 60.08ppm. <br /> 2. Volume of Excavation <br /> J1 <br /> As calculated for Benz,�ne <br /> r r� 3. lbs. of . Ethyl Benzene emitted from site (volatilization <br /> percentage = 59t) <br /> j - <br />�" o Minimum extent - 910,000 lbs x .00012767 x .59 = <br /> 68.51 lbs. <br /> o Maximum extent w 9,100,000 lbs x .0000600e .59 = <br /> 322.67 lbs. <br /> Ing qwwMM <br />