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0014 Alternative 4 - Upper Valley Reservoir , ':il While Alternative 4 has not been selected, it has some merits. It would provide for west slope storage and it would allow the Cities and others to develop their State-decreed water rights. It would provide for flat water recreational opportunities; however, it would also result in the loss of 290 acreS of wetlands. In this alternative, 16 acres of Wilderness, near the boundary, would be adversely affected. Alternative 4 was not selected because it proposes a complex joint venture that does not exist between the decreed water rights holders nor does the Forest Service have an application for such an alterna- tive. I would consider Alternative 4 to be consistent with the laws and regulations governing the use of National Forest System lands. The State of Colorado would be, in my judgment, the logical governmental body to initiate and plan such a venture. Alternative 5 - Water Trade This alternative is conceptual in nature and does not at this time include any specific sites or development proposals. The alternative is included in the analysis to provide a more complete disclosure and to provide some comparisons, even though they are speculative in nature. This alternative would require an exchange of water rights between Aurora, Colorado Springs, and Denver and modification of Green Mountain Reservoir rights (FEIS Section 4.1.2, page 4-15). In Section 2.2.5, page 2-30 of the FEIS, some conceptual facilities are assumed to be required for Alternative 5. These are: 1. A west slope replacement reservoir to be located in the Colorado or Eagle River basins. The capacity of the reservoir could vary depending on the yield of the water rights to be exchanged. No specific reservoir sites have been identified. The 35,000 acre- foot Eagle-Colorado Reservoir site near Wolcott may be a possible location. 2. A pump station(s) at Green Mountain Reservoir and an estimated 21 to 23 miles of pipeline from Green Mountain Reservoir to Dillon Reservoir. The pipeline may be located above ground or below ground depending on the site-specific conditions encoun- tered and would be between 48 inches and 84 inches in diameter, depending upon the volume and delivery schedule of transported water. 3. Approximately 10 to 20 miles of temporary roads would De required for access to the above facilities. The amount of roads could vary depending on the facilities involved in the water trade. 4. An east slope reservoir(s) to store water delivered from the exchange. The size and location of any east slope storage facil- ities is unknown. Alternative 5 would have no effect on the Holy Cross Wilderness. Out- side the Wilderness, about 1,000 to 2,000 acres of surface disturbance would occur. Annual water diversion of 120,000 acre-feet, of which 13