Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.265

The Water Resources Department shall impose as a condition to any water right permit to appropriate water for hydroelectric purposes granted under ORS 537.211 or any license granted under ORS 543.260 that the person operating the hydroelectric project shall, during the operational lifetime of the project, perform or allow the State Department of Fish and Wildlife to perform, any tests or studies required by the department to evaluate the effectiveness of measures for the protection of fish. The scope and cost of these studies will be negotiated between the State Department of Fish and Wildlife and the operator.