(2) In addition to the authority to issue general obligation bonds, the district, when authorized at any properly called election, shall have the power to sell and dispose of revenue bonds, and to pledge as security for the bonds all or any part of the unobligated net revenue of the district to purchase, acquire, lay out, construct, reconstruct, extend, enlarge or improve service facilities. The revenue bonds shall be issued as prescribed in ORS chapter 287A, but they are payable, both as to principal and interest from revenues only, as specified by this section. The revenue bonds are not subject to the percentage limitation applicable to general obligation bonds and are not a lien upon any of the taxable property within the boundaries of such district, but are 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. 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.

(3) The district’s total outstanding general obligation bonds, including improvement bonds of the kind authorized by ORS 223.205 and 223.210 to 223.295, may not exceed in the aggregate 13 percent of the real market value of all property by law assessable for state and county purposes within the district as reflected in the last roll certified under ORS 311.105. [1961 c.576 §19; 1963 c.515 §19; 1969 c.646 §12; 1973 c.785 §20; 1981 c.804 §104; 1991 c.459 §406; 1995 c.79 §227; 2007 c.783 §192; 2009 c.538 §10]