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10. Priority Planning Program It is contemplated that the Secretary of the Interior would be authorized and directed to give priority to completion of feasibility reports on tributary projects within the Pacific Southwest where undeveloped local water supplies are available or can be made available by replacement or exchange and to other projects, including Indian reservations, in Arizona, California, and Nevada which can utilize the waters of the Colorado River by direct diversion or which can develop other water which can be utilized either directly or through the exchange process to meet water deficiencies in the area. Similar priority in planning is contemplated relative to watersheds of origin of import supplies. 11. Long-Range Planning The proposed Initial Plan as the first step of a comprehensive plan will meet only the most immediate and urgent demands for increased water supplies for the Pacific Southwest. Water demands over and above these immediate needs can and should be provided for through long-range planning. Further detailed planning will be necessary for works and programs beyond those recommended for authorization as part of the Initial Plan. Because of the numerous water development functions involved and the many interests affected, it is obvious that long-range plans should be fully coordinated. To assure such coordination among Federal, State, interstate, and local plans, consistent with the responsibilities of the Secretary of the Interior under existing Colorado River legislation and the decree in Arizona v. California, it is highly desirable that the authorizing legislation establish a regional water commission modeled, to the extent appropriate, upon that set forth in Title II of S. 1111, as supported by the Administration and as passed by the Senate. 12. Continuing Study of Water Supply Bureau of Reclamation estimates of future water supply available for consumptive use from the Colorado River at and below Hoover Dam have been used in the report. It should be stressed, however, that these estimates will be subject to continuing and intensive cooperative study with all interests concerned and to periodic modification. Such continuing study is essential to proper planning and phasing of units to be constructed under the Pacific Southwest Water Plan in order that water supplies may be provided as the water demands of the area develop. However, construction of the initial features of the Pacific Southwest Water Plan must not be deferred pending completion of these studies since such studies will be carried out on a continuing basis for the foreseeable future. 719-078 O - 64 - 4 A 33Epson Perfection 4870 Photo, 400 dpi, 8 bit, 13,813,760 byte