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October 1973 Expanded Indian Request . Map #1 shows approximately 6,500 acres that were presented to the Bureau of Reclamation as approved by the tribe for inclusion in the Dolores Project. Two large maps were received showing most of the reservation south and west of the Sleeping Ute Mountain. On these maps, approximately 11,000 acres of arable lands were delineated of which 6,500 acres were purposed for development. It is assumed that the 6,500 acres are those which appear the most desirable to the tribe. A field inspection by Reclamation classification and drainage personnel revealed that about 2.520 acres of the 6,500 acres are similar to the Dove Creek area lands, as they appear to. be underlain by sandstone-rather than the highly saline Mancos shale. These lands are located west of Mariano Wash. In addition to the 6,500 acres the 1,000 acre-feet of M&I water would still be delivered to the reservation. Chimney Rock Draw reservoir would be abandoned and another reservoir west of the highway inter- section on an arm of Navajo Wash would be substituted. The reservoir would be significantly larger. It was requested that sufficient water be provided to replenish an estimated 800 acre-feet annual evaporation loss and an additional quantity for keeping the reservoir from becoming too saline. This additional water requirement for maintenance of reservoir quality is estimated to be 400 acre-feet per year. In order to deliver the water supply necessary for the above develop- ment it was found economically advantageous to provide a separate canal alinement rather than enlarge the MVI system. For sprinkler irrigation the required capacity would be 120 cfs and assuming gravity service the capacity would be 150 cfs. Water supply allocations with the 3,055 acr~s of Indian development util- izes the complete yield of McPhee Reservoir. Within these allocations an average annual release of 23,200 ~ was provided to meet fishery recreation, and esthetic purposes below the dam. This release would create a live stream in the Dolores River canyon year around and is appealing to the environmental community who have in the past expressed opposition to the project. , , As discussed above, the Indians are requesting a greater participation in the Dolores Project. At the same time M&I demands are increasing in response to population migration. Informal responses from the environmental community with regard to fishery releases have been favorable.~ meet these increasing demands would require additional project water supplies. McPhee Reservoir cannot provide the additional yield. Final project water supplies at McPhee Reservoir are dependent