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TABLE 19A. COST ESTIMATE FOR IN SITU R10/71-51-1c <br /> CONTAINMENT (OPTION 2) <br />' Capital Costs <br />' Initial repair of asphalt pavement to remove potholes and patch cracks <br /> 1 Assumptions a ) Construction of new building on site will include adequate <br /> paving of present gravel area over former tank location, b) Total surface area <br /> facility approximately 160,000 square feet, $ 0 50 square feet for repair <br /> 1 - $ 80,00000 <br /> Annual Maintenance (for 2nd to 5th year) <br /> Assumption $ 0 05/ square feet /year - $ 8,00000 <br /> Present Worth Analysis <br /> Assumption interest rate, i, = 10 <br /> n = 4 years <br /> Annual cost, A, _ $ 8,000 <br /> Present worth duringsecond year, P = A (P/A, 10%,4 <br /> Y 2 ( / ) <br /> (8,000) (3 1699) <br /> = $ 25,359 00 <br /> 1 Translating to present worth during first year, P, = F(P/F, 10%, 4) <br /> = (25,359) (0 9091) <br /> = $ 23,054 <br /> Present Worth of Option 2 during 5-year period of operation <br /> ICapital cost + Pi _ $ 103-000 <br /> 39 <br />