Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.662

A district may contract with a private person to enlarge or modify the district's water system for the purpose of generating hydroelectric power. The district shall retain sufficient benefit and interest in, and control of a joint project as necessary for the project to be considered a district project. A district and a private person developing a joint project under ORS 543.650 to 543.685 must comply with the rules adopted by the Water Resources Commission under ORS 543.664.