Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 537.742

(a) A provision apportioning the permissible total withdrawal as established by rule under ORS 537.730, among the appropriators holding valid rights to ground water in the critical area in accordance with the relative dates of priority of such rights.

(b) A provision according preference, without reference to relative priorities, to withdrawals of ground water in the critical area for residential and livestock watering purposes first. Thereafter, the commission may authorize withdrawals of ground water in the critical area for other beneficial purposes, including agricultural, industrial, municipal other than residential, and recreational purposes, in such order as the commission considers advisable under the circumstances, so long as such withdrawal will not materially affect a properly designed and operating well with prior rights that penetrates the aquifer.

(c) A provision reducing the permissible withdrawal of ground water by any one or more appropriators or wells in the critical area.

(d) Where two or more wells in the critical area are used by the same appropriator, a provision adjusting the total permissible withdrawal of ground water by such appropriator, or a provision forbidding the use of one or more of such wells completely.

(e) A provision requiring the abatement, in whole or part, or the sealing of any well in the critical area responsible for the admission of polluting materials into the ground water supply or responsible for the progressive impairment of the quality of the ground water supply by dispersing polluting materials that have entered the ground water supply previously.

(f) A provision requiring and specifying a system of rotation of use of ground water in the critical area.