Oregon Revised Statutes Public Health and Safety § 468B.330

(1) If the amount of state-incurred expenses under ORS 468B.320 is not paid by the responsible person to the Environmental Quality Commission at the time provided in subsection (2) of this section, the Attorney General, upon the request of the Director of the Department of Environmental Quality, shall bring action in the name of the State of Oregon in the Circuit Court of Marion County or the circuit court of any other county in which the violation may have taken place to recover the amount specified in the order of the commission.

(2) Payment must be made within 15 days after the end of the appeal period or, if an appeal is filed, within 15 days after the court renders its decision if the decision affirms the order.