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T ; , :::> ~ /Mol> N ~ managed primarily for fish and wildlife where development, management, and use of other resources would complement fish and wildlife purposes. This important aspect of preserving and adding to the quality and quan- tity of the resource is in part additional to that provided by wilder- ness, primitive, and wild and scenic river areas. There must be a re- assessment of priorities of beneficial used of lands and waters, and the development of these lands and waters must be based on other than the highest economic uses, to maintain the future environmental quality, A considerable increase in the Region's supply of water providing fish and wildlife habitat is expected. B,y 1980, authorized mu1tiple- and primary-purpose developments will enhance the resource supply ex- isting in 1965 by 3 million man-days of fishing and hunting annually. Another one million man-days annually are expected from multiple-purpose projects expected to be developed during the 1981-2020 period. In addition, this appendix includes proposals for water develop- m~nts to improve the fish and wildlife resources which, when combined with the existing and expected resources, will satisfy the demands for fish- and wildlife-oriented activities through 2020. These proposals are for primary-purpose developments that total 2,000 acres during the 1966-1980 period; 10,500 acres during the 1981-2000 period; and 21,600 acres during the 2001-2020 period. The- annual consumptive water needs for the programed facilities, when combined with the water consumed in 1965 at existing facilities, is estimated at 405,000 acre-feet by the year 2020. However, of this total, l~O,OOO represents existing water-rights at installations in 1965. Thus, the net increase in consumptive use of water for fish and wildlife purposes under the proposed program will amount to 32,000 acre- feet in 1980; 222,000 acre-feet in 2000; and 295,000 acre-feet in 2020. The costs associated with the developments to satisfy demands for fish and wildlife during the 1966-1980, 1981-2000, and 2001-2020 study periods are $50.5 million, $113.8 million, and $208.0 million respec- tively.However, of the total $372 million by 2020, $45 million are costs associated with authorized multiple- and primary-purpose projects expected ~y 1980 plus the multiple-purpose projects proposed during the 1981-2020 period, Thus the net costs for fish and wildlife developments to satisfY the remaining demands through 2020 are $327 million. The annual operation, maintenance, and replacement costs associated with the fish and wildlife developments for the last year of each period are $3.8 million during the 1966-1980 period; $9.6 million during the 1981-2000 period; and $17.7 million during the 2001-2020 period. The total annual operation, maintenance, and replacements costs by 2020 are $31.1 million. Details of the fish and wildlife proposals are contained in the underlying report. .