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August 1982 B-5 EXPLANATORY NOTES FOR DEPLETIONS LISTED IN TABLES Projected Water Supply and Depletions , Upper Colorado River Basin Arizona Present Uses in Arizona (other than the Navajo Powerplant) for the present column were originally based upon a study to determine the amount of water available for the Navajo Powerplant at Page. Estimates for 1980 indicate these uses total 13,000 acre-feet with approximately 10,000 acre-feet used in agriculture and 3,000 acre-feet municipal uses for the Navajo Indian people, city of Page, and the recreation areas. Navajo Powerplant Calendar year (1980) consumptive uses for the plant totaled 21,000 acre-feet. Salt River Project personnel confirmed these figures and the 34,000 acre-feet consumptive use projected for future years. Gallup-Navajo Indian Municipal Water Supply Project See discussion under New Mexico. The project will supply 7,000 acre-feet to the Arizona communities of Teee Nos Pos, Saw Mill, Fort Defiance, Window Rock, and St. Michael's. Water could be made available on a temporary basis from the unused Navajo Powerplant allocation until ~ither the powerplant uses the full contractual amount or the contract is renegotiated to a lesser amount. Other Municipal It is expected that an additional 3,000 acre-feet will be used for municipal purposes for Navajo Indian people uses and for the city of Page, Arizona. Water for Page is reserved by "The Reclamation Development Act of 1974," Public Law 93-493, which among other actions provided for the incorporation of the city. Colorado Present The present (1980) depletions for Colorado were based upon the Compre- hensive Framework Studies (Type I) published in 1971 for 1965 data. These studies were the result of extensive Federal-State studies for the Upper Colorado Region. The Type I Figure of 1,707,000 acre-feet consump- tive use was adjusted upward as follows: