Requires the department of fish and wildlife, in consultation with the department of ecology and the department of natural resources, to conduct a scientific literature review of the impacts to the beds of the state's rivers and streams resulting from human-caused sources of disturbance.

Requires the department of ecology to coordinate with the state academy of sciences to assemble a peer review panel to develop methods for and consider the results of the literature review.

Expires June 30, 2020.