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. Requires the Program to encourage and provide funding assistance for the following phases of water conservation: (1) development of water conservation plans, consistent with specified guidelines discussed below, by individuals and areawide entities; (2) investigation of the feasibility of specific potential water conservation measures identified in the plans; (3) implementation of measures that have been identified in the plans and investigated for feasibility; and (4) post-implementation monitoring and evaluation of implemented measures. Directs the Secretary to establish the Yakima River Basin Conservation Advisory Group to provide assistance with respect to the Program. Directs the Secretary to adopt gu…