Oregon Revised Statutes Agriculture § 568.912

(1) The State Department of Agriculture in consultation with the State Board of Agriculture may adopt rules necessary to implement a water quality management plan initiated under ORS 568.909. The rules adopted under this subsection shall constitute the only enforceable aspects of a water quality management plan.

(2) Pursuant to rules adopted under subsection (1) of this section, the department may require any landowner whose land is located within an area subject to a water quality management plan to perform those actions on the landowner's land necessary to prevent and control water pollution from agricultural activities and soil erosion. Such actions may include:

(3) No specific practice may be prohibited under this section unless the department has a scientific basis for concluding that the practice is a factor in causing water quality standards to be exceeded.

(4) A landowner subject to the rules adopted to implement a plan may appeal specific actions required of that landowner by the department to carry out a plan. The department shall establish by rule a procedure and criteria for the appeal process.