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Show VI-22 UPDATING THE HOOVER DAM DOCUMENTS COLORADO RIVER STORAGE PROJECT 17 Stairs. Anything which is provided for herein is subject to change consistent with whatever rulings are made by the Supreme Court which might affect the principles and criteria herein set out. They may also be subject to change due to future acts of the Congress. 2. The principles and criteria set forth hereinafter are applicable during the Lake Powell filling period, winch is defined as that time interval between the date Lake Powell is first capable of storing water (estimated to occur in the fall of 1902 or the spring of 19G3) and the date Lake Powell storage first attains elevation 3,700 (content 28 million acre-feet total surface storage), or Majr 31, 1987, whichever occurs first. If, in the judgment of the Secretary, the contents of Lake Powell and Lake Mead warrant such action, and after consultation with appropriate interests of the Upper Colorado River Basin and the Lower Colorado River Basin, the Secretary may declare these principles and criteria no longer applicable. 3. Sufficient water will be passed through or released from either Lake Mead or Lake Powell, as circumstances require under the provisions of principles 7 and 8 hereof, to satisfy downstream uses of water (other than for power) below Hoover Dam which uses include the following: (a) Net river losses. (b) Net reservoir losses. (c) Regulatory wastes. (d) The Mexican treaty obligation limited to a scheduled 1.5 million acre-feet per year. (e) The diversion requirements of mainstream projects in the United States. 4. All uses of water from the main stem of the Colorado River between Glen Canyon Dam and Lake Mead will be met by releases from or water passed through Lake Powell or by tributary inflow occurring below Glen Canyon Dam. Diversions of water directly out of Lake Mead will be met in a similar manner or, if application of the criteria of principles 7 and S hereof should so require, by water stored in Lake Mead. 5. The United States will make a fair allowance for any deficiency, computed by the method herein set forth, in firm energy generation at Hoover powerplant. For each operating year deficiency in firm energy shall be computed as the difference between firm energy which, assuming an overall efficiency of 83 percent, would have been generated and delivered at transmission voltage at Hoover power-plant in that year if water had not-been impounded in the reservoirs of the Colorado River storage project storage units (Glen Canyon, Flaming Gorge, Navajo, and Curecanti), but excluding the effects of evaporation from the surface of such reservoirs, and the energy actually generated and delivered at transmission voltage at Hoover powerplant during that year adjusted to reflect an overall efficiency of 83 percent. At the discretion of the Secretary, allowance will be accomplished by the United States delivering energy, either at Hoover powerplant or at points acceptable to both the Secretary and the affected Hoover power contractors, or monetarily in an amount equal to the incremental cost of generating substitute energy. To the extent the Upper Colorado Oliver Basin fund is utilized the moneys expended therefrom in accomplishing the allowance, either through the delivery of purchased energy or by direct monetary pay- |
