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Chapter 4 at the San Juan Powerplant. Water use at the plant is about 24,000 acre-feet a year. The balance of the water is purchased from the private right of Utah International, Inc. The contract for water delivery from Navajo Reservoir terminates December 31, 2005. By letter dated July 10, 1985, the New Mexico Interstate Stream Commission recommended to the Secretary of the Interior that the existing contract with the Public Service Company of New Mexico be extended to the year 2025. Colorado 1966-90 Changes-Values used for 1990 represent additional depletions that have been assumed to have developed since the Comprehensive Framework Study (1965 level) estimates were prepared. They have not been specifically identified but are included to bring Reclamation estimates of present uses more in line with State estimates. The 1990 values of 1966-90 changes may be either real additions or differences resulting from new depletion accounting procedures. Denver Expansion-Water for expanded Denver needs since 1965 has been met by increased diversions through the Moffat and Roberts Tunnels. The average annual recorded diversion through both tunnels for the period 1978-82 was 151,000 acre-feet. The combined 1965 normalized diversion was 93,000 acre-fe~t, yielding an increase of 58,000 acre-feet. Of the 58,000 acre-feet, 4,000 acre-feet were delivered to the city of Englewood. Therefore, net diversions by Denver increased by 54,000 acre-feet. Projections were provided by the Colorado Water Conservation Board in consultation with the Denver Water Department. Homestake Expansion-Homestake Phase I was projected to deplete 28,000 acre-feet on an average annual basis. Uses between 1988 and 1990 averaged about 27,670 acre-feet annually. The maximum diversion was 31,960 acre-feet in 1980. Phase II of the expansion is expected to be online by 2010 and yield an additional 20,000 acre-feet annually. Values were supplied by the Colorado Water Conservation Board in consultation with Aurora and Colorado Springs. Independence Pass, Pueblo, Colorado Springs Expansion, and Englewood- Expansion of diversions to these entities is measured by increased diversions to the east slope through the Twin Lakes Tunnel, Busk-Ivanhoe Tunnel, Columbine Ditch, Ewing Ditch, Wurtz Ditch, Hoosier Pass Tunnel, and Boreas Pass Ditch. In addition, Englewood receives water through the Denver Water Board's Moffat Tunnel. Fryingpan-Arkansas Project-Diversions through Boustead Tunnel began in 1971. The average annual diversion during the 1984-93 period was 52,021 acre-feet. The maximum diversion occurred in 1984 and was 107,600 acre-feet. The operating principles for the project state that diversions will not exceed 120,000 acre-feet in any year and will not exceed a total aggregate of 2,352,800 acre-feet in any consecutive 34-year period. The latter requirement would mean a long- term average diversion of 69,200 acre-feet. Since the 1984-93 average diversion has been less than this, it is likely that in the coming decade or so annual diversions may be higher than 69,200 acre-feet (provided that water is available for diversion) to approach the 34-year aggregate limitation. Colorado-Big Thompson Project and Windy Gap-The Colorado-Big Thompson Project was completed in June 1947 and delivers water to the east slope through the Alva B. Adams Tunnel. The 1965 normalized diversion rate through the tunnel was 285,000 acre-feet. Diversions through 30