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Show APPENDIX VI VI-23 18 COLORADO RIVER STORAGE PROJECT ments, shall be reimbursed to said fund from the separate fund identified in section 5 of the act of December 21, 1928 (45 Stat. 1057), to the extent sucli reimbursement is consistent with the expenditures Congress may authorize from said separate fund pursuant to said act. The attached additional regulation No. 1 for generation and sale of power in accordance with the Boulder Canyon Project Adjustment Act is hereby made a part of these principles and criteria. 6. In accomplishing the foregoing, Lake Powell will be operated in general accordance Nyith the provisions of principles 7 and 8. 7. Storage capacity in Lake Powell to elevation 3,490 (6.5 million acre-feet surface storage) shall be obtained at the earliest practicable time in accordance with the following procedure: Until elevation 3,490 is first reached, anv water stored in Lake Powell shnll be available to maintain rated head on Hoover power-plant. When stored water in Lake Powell has reached elevation 3,490, it will not be subject to release or diminution below elevation 3,490. The obtaining of this storage level in Lake Powell will be in such manner as not to cause Lake Mead to be drawn down below elevation 1,123 (14.5 million acre-feet available surface storage), which corresponds to rated head on the Hoover power-plant. In the process of gaining storage to elevation 3,490, the release from Glen Canyon Dam shall not be less than 1 million acre-feet per year and 1,000 cubic feet per second, as long as inflow and storage will permit. 8. The operation of Lake Powell above elevation 3,490 and Lake Mead will be coordinated and integrated so as to produce the greatest practical amount of power and energy. In view of the provision for allowance set forth in principle 5 hereof, the quantity of water released through each powerplant will be determined by the Secretary in a manner appropriate to meet the filling criteria. 9. In general, it is not anticipated that secondary energy will be generated at Hoover during the filling period. However, any secondary energy, as defined in the Hoover contracts, which may be generated and delivered at transmission voltage at Hoover power-plant will be disposed of under the terms of such contracts. 10. In the annual application of the flood control regulations to the operation of Lake Mead, recognition shall be given to available capacity in upstream reservoirs. Additional Regulation No. 1 to the General Regulations for Generation and Sale of Power in Accordance With the Boulder Canton Project Adjustment Act In accordance with the terms and conditions of the act of July 19, 1940 (54 Stat. 774), and article 27 of the general regulations promul- fated May 20, 1941, the following additional regulation No. 1 is ereby promulgated: Commencing with June 1, 1987, charges for electrical energy in addition to such other components as may then be authorized or required under the then existing laws and regulations, and to the extent not inconsistent therewith, shall include a component to return to the United States funds adequate to reimburse the Upper |