2013 Oregon Revised Statutes
Volume : 13 - Water Resources, Agriculture and Food
Chapter 540 - Distribution of Water; Watermasters; Change in Use; Transfer or Forfeiture of Water Rights
Section 540.710 - Interference with headgate, or use of water denied by watermaster or other authority; evidence of guilt.

No person shall willfully open, close, change or interfere with any lawfully established headgate or water box without authority, or willfully use water or conduct water into or through the ditch of the person which has been lawfully denied the person by the watermaster or other competent authority. The possession or use of water when the same shall have been lawfully denied by the watermaster or other competent authority shall be prima facie evidence of the guilt of the person using it.