Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 547.130

The board of supervisors of any district organized under the Drainage District Act shall cause to be kept a well-bound book, entitled “Record of Proceedings of Board of Supervisors of _______ District,” in which shall be recorded minutes of all meetings, proceedings, certificates, bonds given by all employees, and any and all corporate acts, which record shall at all times be open to the inspection of anyone interested, whether taxpayer or bondholder.