(70 ILCS 2805/26c) (from Ch. 42, par. 437c)
    Sec. 26c. The trustees of any district, having been authorized by an election held pursuant to the preceding section, being desirous of exercising such authority, shall have an estimate made of the cost of the acquisition of the contemplated drainage system, and by ordinance shall provide for the issuance of revenue bonds. The ordinance shall set forth a brief description of the contemplated drainage system, the estimated cost of acquisition or construction thereof, the amount, rate of interest, time and place of payment, and other details in connection with the issuance of the bonds. The bonds shall bear interest at a rate not exceeding that permitted by "An Act to authorize public corporations to issue bonds, other evidences of indebtedness and tax anticipation warrants subject to interest rate limitations set forth therein", approved May 26, 1970, as amended, payable semiannually, and shall be payable at such times and places not exceeding 20 years from their date as shall be prescribed in the ordinance providing for their issuance.
    This ordinance may contain such covenants and restrictions upon the issuance of additional revenue bonds thereafter as may be deemed necessary or advisable for the assurance of payment of the bonds thereby authorized and as may be thereafter issued, and shall pledge the revenues derived from the operation of the drainage system for the purpose of paying all maintenance and operation costs, principal and interest on all bonds issued under the provisions of this Act, and for providing an adequate depreciation fund, which depreciation fund is hereby defined for the purposes of this Act to be for such replacements as may be necessary from time to time for the continued effective and efficient operation of the drainage system properties of such district, and such fund shall not be allowed to accumulate beyond a reasonable amount necessary for that purpose, the terms and provisions of which shall be incorporated in the ordinance authorizing the issuance of the bonds.
(Source: P.A. 83-591.)