2013 ORS § 540.543¹
Regulation of headgates when water provided by exchange

If water for an in-stream use is provided by exchange, the watermaster shall regulate headgates and other diversion points as necessary to assure that the exchange water is not diverted from the channel at any point above the most downstream point of use specified in the permit or certificate that establishes the right to use of water for an in-stream purpose. [1987 c.815 §7]