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R10/71-51-1G <br /> TABLE 19D. COST ESTIMATE FOR PUMP AND TREAT <br /> WITH AQUEOUS PHASE CARBON ADSORPTION (OPTION 7D) <br /> ICapital Cost <br /> 1 Equipment and installation of Extraction Wells (four wells) <br /> and pump system $ 100,000 <br /> Annual Maintenance (for first to fifth year) <br /> 1 Facility operator $ 50,000 <br /> 2 Carbon adsorbers (50,000 lbs/year @ 3 000 Ib) $ 150,000 <br /> 3 Disposal of carbon $ 125,000 <br /> 4 Repairs $ 12,000 <br /> 5 Groundwater monitoring $ 150,000 <br />' Total $ 487,000 <br /> Present Worth Analysis <br /> Assumption 1 = 10% <br />' n = 5 <br /> A = $ 487,000 <br /> Present worth during first year, <br /> P = A (P/A, 10%, 5) <br /> P = (487,000) ( 3 7908) <br />' = $ 1,846,112 <br /> Present Worth of O tion 7A duan 5-year period of operation <br />' Capital cost +P = 1,946, 000 <br /> 42 <br />