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<br />Table 3.-Colorado River Basin depletion projections-Continued <br /> (Unit: 1,000 af/yr) <br /> 1990 2000 2010 2020 2030 2040 2050 2060+ <br />CALIFORNIA (continued) <br />Colorado River Indian Reservation 3 3 3 3 3 3 3 3 <br />Palo Verde Irrigation District 465 465 465 465 465 465 465 465 <br />Yuma Project Reservation Division 51 51 51 51 51 51 51 51 <br />Imperial Irrigation District 2,848 2,778 2,778 2,778 2,778 2,778 2,778 2,778 <br />Coachella Valley Water District 368 342 342 342 342 342 342 342 <br />Other uses Davis to Parker Dam 1 1 1 1 1 1 1 1 <br />Other uses below Imperial Dam 12 12 12 12 12 12 12 12 <br />Total 5,011 4,920 4,823 4,622 4,446 4,401 4,401 4,401 <br /> <br />Note: Depletions are from mainstem diversions of the Colorado River only, Does not include depletions from diversions <br />of Colorado River tributaries nor evaporation mainstem reservoirs, The figures represent measured diversions less <br />measured and estimated, unmeasured return flow which can be assigned to a specific project. Includes estimates for <br />unmeasured return flow credits, <br /> <br />Lake Powell, Wayne N. Aspinall Unit, and Flaming Gorge Reservoirs. This charge is <br />provided for in article V of the Upper Colorado River Compact and is identified in <br />table 3 as "Evaporation from Storage Units." <br /> <br />Reclamation's most recent hydrologic determination of water available to the Upper <br />Colorado River Basin is 6.0 million acre-feet (maf) rather than the 7.5 maf anticipated <br />by the 1922 Colorado River Compact. While the Upper Basin States do not share <br />Reclamation's view of water available to the Upper Basin States, they have acquiesced <br />to Reclamation's views for planning purposes only. <br /> <br />Arizona <br /> <br />1966-90 Changes-Consumptive uses due to irrigation and stockpond evaporation <br />have increased by about 5,000 acre-feet since the Comprehensive Framework Study <br />estimates were prepared. Municipal and domestic uses have increased by about <br />5,000 acre-feet. The Navajo Indian Nation and the city of Page, Arizona, are expected <br />to use additional water for municipal purposes. Water for Page is reserved by the <br />Reclamation Development Act of 1974, Public Law 93-493, which, among other actions, <br />provided for the incorporation of the city. <br /> <br />Navajo Powerplant-Consumptive uses, according to records provided by the Navajo <br />Generating Station, averaged 22,000 acre-feet over the 1980-85 period. The contract <br />for sale of water out of Lake Powell allows for annual uses of up to 34,100 acre-feet; <br />however, present physical limitations preclude this level of use. The addition of <br />scrubbers to the powerplant would increase water use by about 10,000 acre-feet. <br /> <br />Gallup-Navajo Indian Water Supply Project (temporary)-The project will <br />supply up to 7,000 acre-feet to several small communities in Arizona. <br /> <br />24 <br /> <br />j <br />