Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 553.740

After the amount of a levy under ORS 553.710 is determined and turned over to the county assessor, a district may issue warrants to an amount not in excess of 75 percent of the amount of the levy. The warrants shall be serially numbered and shall bear interest of not more than six percent and shall be paid by the treasurer of the district in the order of issuance upon receipt of funds from the county treasurer.