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<br />Chapter 4 <br /> <br />Reclamation's most recent hydrologic determination of water available to the Upper Colorado <br />River Basin is 6.0 maf rather than the 7.5 maf anticipated by the 1922 Colorado River Compact. <br />While the Upper Basin States do not share Reclamation's view of water available to the Upper <br />Basin States, they have acquiesced to Reclamation's views for planning purposes only. <br /> <br />Arizona <br /> <br />1966-90 Changes-Consumptive uses due to irrigation and stockpond evaporation have increased <br />by about 5,000 acre-feet since the Comprehensive Framework Study estimates were prepared. <br />Municipal and domestic uses have increased by about 5,000 acre-feet. The Navajo Indian Nation <br />and the city of Page, Arizona, are expected to use additional water for municipal purposes. Water <br />(2,740 acre-feet) for Page is reserved by the Reclamation Development Act of 1974, Public <br />L~w 93-493, which, among other actions, provided for the incorporation of the city. <br /> <br />Navajo Powerplant-Consumptive uses, according to records provided by the Navajo Generating <br />Station, averaged 22,000 acre-feet over the 1980-85 period. The contract for sale of water out <br />of Lake Powell allows for annual uses of up to 34,100 acre-feet; however, present physical <br />limitations preclude this level of use. The addition of scrubbers to the powerplant would increase <br />water use by about 10,000 acre-feet. <br /> <br />Gallup-Navajo Indian Water Supply Project (Ternporary)-The project will supply up to <br />7,000 acre-feet to several small communities in Arizona. <br /> <br />Wyoming <br /> <br />1966-90 Changes-Values used represent additional depletions that have developed since the <br />Comprehensive Framework Study (1965 level) estimates were prepared. These values and the <br />projections were provided by the Wyoming State Engineer's Office with assistance provided by <br />thp: T Tnnpr rf\'nr~nn l);U.cllr rru",",,:t"I"':"_ <br />----. -rr-- -..............--..., ............"'.. _V....U......I03~IVll. <br /> <br />Seedskadee Project-Fontenelle Dam and the Seedskadee National Wildlife Refuge are the <br />primary features remaining after the irrigation purposes of the Seedskadee Project were shown to <br />be infeasible and deleted. By contract dated June 14, 1962, the State of Wyoming purchased <br />60,000 acre-feet of capacity in Fontenelle Reservoir. A second contract, dated December 27, <br />1974, was signed by the State of Wyoming for 65,000 acre-feet of additional water for use in <br />Wyoming. Contracts entered into with the State of Wyoming for Fontenelle Reservoir storage <br />include: PacificCorp for 35,000 acre-feet, FS Industries for 10,000 acre-feet (not exercised), and <br />Church and Dwight for 1,250 acre-feet. <br /> <br />The second feature of the Seedskadee Project that has been constructed is the Seedskadee National <br />Wildlife Refuge located on the Green River below the Fontenelle Dam. When the refuge is fully <br />developed, an estimated 20,000 acre-feet per year of depletion will result. <br /> <br />26 <br />