Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 541.651

(1) “Newly developed water” means the new increment of water:

(2) “Seasonally varying flows” means the duration, timing, frequency and volume of flows, identified for the purpose of determining conditions for a new or expanded storage project, that must remain in-stream outside of the official irrigation season in order to protect and maintain the biological, ecological and physical functions of the watershed downstream of the point of diversion, with due regard given to the need for balancing the functions against the need to store water for multiple purposes.