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2.2 downstream of Ruedi Reservoir or to compensate downstream water users for out- of-priority diversion by the collection system of the Fryingpan-Arkansas Project. Fall, winter, and early spring releases are made from the reservoir to provide adequate storage for spring runoff. The first-round water sales of 7,850 AF included 1,850 AF of augmented water sales for municipal and domestic uses and 6,000 AF of augmented water sales for industrial use. The sales level of 7,850 AF represents the maximum amount of water which would be sold from Ruedi Reservoir during an extremely dry year. However, operational modeling indicated a maximum augmented sale of only 4,700 AF would ever occur during the period of study 1948 to 1983. This is because the water purchasers in Round I purchased water greatly in excess of their actual needs. The No Action Alternative essentially constitutes the baseline against which all other alternatives are judged. The No Action Alternative has a maximum delivery of 7,200 AF, and Ruedi Reservoir usually has over 100,000 AF of volume each year on September 1, and, on the average, there is almost no drawdown during the summer. There is only a 3 percent chance that the reservoir will be below 85,000 AF on September 1 of any year. With the No Action Alternative, revenues from water sales are not great enough to repay construction costs in accordance with the Operating Principles. The No Action Alternative is therefore not a preferred operational alternative. Percent Municipal/Industrial Demand Split. Respectivelv The Preferred Alternative represents a modification of the maximum unconstrained yield of the reservoir capacity, plus refinement and correction of the hydrology. This modification was a result of public comment and con- sultation during the assessment review process and the DSES 83-69 review. Water sales would be restricted to the available water supply provided by Ruedi Reservoir with 28,000 AF being available annually for replacement purposes. This conforms with the intent of the project authorization to provide up to 28,000 AF of capacity in Ruedi Reservoir equivalent to that which would have been provided by the proposed Aspen Reservoir for replacement and other purposes. Water sales would not be made from the replacement pool until additional operating experience is gained. This alternative would yield a marketable water