Document: A Bill To approve a regional approach to the development of the water resources of the Pacific Southwest and to authorize features of the Initial Pacific Southwest Water Plan, 1-29-64, page 13or by exchange, for non-Federal fish and wildlife installations in the region included in said Initial Plan, subject to rights existing on the effective date of this Act of users of mainstream water: Provided, That such water shall be put to use for fish and wildlife purposes within a period of 50 years from the effective date of this Act. The Secretary may acquire lands and withdraw public lands from entry or other disposition under the public land laws necessary for the construction, operation, and maintenance of the facilities herein provi...