Authorizes the department of ecology to: (1) Implement the integrated water resource management plan in the Yakima river basin;

(2) Develop water supply solutions that provide concurrent benefits to both instream and out-of-stream uses; and

(3) Address a variety of water resource and ecosystem problems affecting fish passage, habitat functions, and agricultural, municipal, and domestic water supply in the Yakima river basin, consistent with the integrated plan.

Creates the Yakima integrated plan implementation account, the Yakima integrated plan implementation taxable bond account, and the Yakima integrated plan implementation revenue recovery account.