To authorize certain elements of the Yakima River Basin Water Enhancement Project, and for other purposes.

[AI summary unavailable — showing source text] Directs the Secretary of the Interior to establish and administer a Yakima River Basin Water Conservation Program for the purpose of evaluating and implementing measures to improve the availability of water supplies for irrigation and the protection and enhancement of fish and wildlife resources, including wetlands, while improving the quality of water in the Yakima River basin. Authorizes the Secretary to make grants to eligible entities for the purpose of carrying out this Act. Directs the Secretary to establish the Yakima River Basin Conservation Advisory Group to provide assistance with respect to the Program. Authorizes appropriations to carry out the Program. Provides for the implementation by the Yakima Indian Nation of: (1) an irrigation demonstration project on the Yakima Indian Reservation that shall provide for the construction of distribution and on-farm irrigation facilities to use water savings resulting from system improvements to the Wapato Irrigation Project; and (2) a Toppenish Creek corridor enhancement project to demonstrate integration of management of agricultural, fish, wildlife, and cultural resources to meet tribal objectives. Authorizes appropriations to t…