Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.665

(1) In addition to any other authority under its principal Act to issue bonds, a district, when authorized at any properly called election, shall have the power to sell and dispose of revenue bonds to construct or acquire hydroelectric facilities in conformance with ORS 543.650 to 543.685 to develop the hydroelectric generation capabilities of the water system, and to pledge as security therefor all or any part of the unobligated net revenue of the district or system.

(2) Revenue bonds may be issued by a district to construct or acquire hydroelectric facilities in connection with its water system in conformance with ORS 543.650 to 543.685, including, but not limited to, dams, canals, generating plants, transmission lines, other power equipment and acquire the necessary property and rights therefor, for the purpose of generating hydroelectric energy.

(3) The revenue bonds authorized by this section shall be issued in the same manner and form as are general obligation bonds of the district, but they shall be payable, both as to principal and interest, from revenues only, as specified by this section. The revenue bonds shall not be subject to the percentage limitation applicable to general obligation bonds and shall not be a lien upon any of the taxable property within the corporate limits of such district, but shall be payable solely from such part of the revenues of the district as remain after payment of obligations having a priority and of all expenses of operation and maintenance of the district, including any taxes levied against it. All revenue bonds shall contain a clause reciting that both the principal and interest are payable solely from operating revenues of the district remaining after paying such obligations and expenses.