OAR 690-508-0050
Imnaha River Subbasin




The maximum economic development of the state, the attainment of the highest and best use of the waters of the Imnaha River Basin, and the attainment of an integrated and coordinated program for the benefit of the state as a whole, will be furthered through utilization of the aforementioned waters only for domestic, livestock, municipal, irrigation, flow augmentation, commercial, agriculture, power development, industrial, mining, recreation, wildlife, and fish life purposes and the waters of the Imnaha River Basin are hereby so classified.


Structures or works for the utilization of the waters in accordance with the aforementioned classifications are also declared to be prejudicial to the public interest unless planned, constructed, and operated in conformity with applicable provisions of ORS 536.310 (Purposes and policies to be considered in formulating state water resources program) and any such structures or works are further declared to be prejudicial to the public interest which do not give proper cognizance to the multiple-purpose concept.


Water Quality: Rights to the use of water for industrial or mining purposes shall be issued only on the condition that any effluents or return flows from such uses shall not interfere with other beneficial uses.


Power Development: Water rights acquired for hydroelectric power purposes utilizing the waters of the Imnaha River Basin shall be subordinate in priority to future upstream beneficial uses of water except for hydroelectric power.

Source: Rule 690-508-0050 — Imnaha River Subbasin, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=690-508-0050.

Last Updated

Jun. 8, 2021

Rule 690-508-0050’s source at or​.us