Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 541.520

If, within 15 days after the mailing of the notice provided for in ORS 541.515, the owner or operator of the impoundment or diversion structure fails to request in writing that the Water Resources Commission hold a hearing, the commission shall make and file in the Water Resources Department an order stating the terms, limitations and conditions relating to the release of water from the structure necessary to minimize unreasonable hazard to human life or property as set forth in the notice. The order shall become effective upon filing a copy in the Water Resources Department. The commission shall cause a copy of the order to be mailed to the owner or operator of the structure. The order is not subject to appeal.