Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 537.450

The Water Resources Commission may by rule provide that the owners of permits shall submit or furnish proofs of commencement of work, prosecution of work with due diligence, completion of work, and of the application of water to a beneficial use under the permits. Failure to comply with the commission's rules in respect to the proofs shall be considered prima facie evidence of failure to commence work, prosecute work with due diligence, complete work, or apply water to the beneficial use contemplated by the permit in proceedings under ORS 537.410 to 537.440 for the cancellation of permits.