Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 536.710

(1) The Legislative Assembly finds that an emergency may exist when a severe, continuing drought results in a lack of water resources, thereby threatening the availability of essential services and jeopardizing the peace, health, safety and welfare of the people of Oregon.

(2) The Legislative Assembly finds it necessary in the event of an emergency described in subsection (1) of this section, to promote water conservation and to provide an orderly procedure to assure equitable curtailment, adjustment, allocation or regulation in the domestic, municipal and industrial use of water resources where more than one user is dependent upon a single source of supply.