70 ILCS 2405/16.5a
Whenever the trustees of a district have been authorized by the affirmative vote of the legal voters of the district to acquire by purchase or construction and thereafter operate, improve or extend waterworks, as provided in this Act, the cost of the purchase or construction of waterworks and the cost of making further improvements and extensions thereto may be paid from the proceeds to be received from the sale of revenue bonds which may not constitute an indebtedness of the district and shall be payable solely and only from the revenues to be derived from the operation of the waterworks of the district or from assessments to be levied against property which will be benefited, or both, determined by the board of trustees. If revenue bonds are to be issued under this Section for the purpose of paying the cost of improving or extending waterworks, the procedure for the issuance of those bonds and the rights, duties, powers and authority of the board of trustees of the district shall be the same as is provided in this Act for the issuance of revenue bonds for the purchase or construction of waterworks by a sanitary district. It shall constitute no objection to any special assessment that the improvement for which the special assessment is levied is situated partly outside the limits of such sanitary district but no special assessment may be made upon property situated outside of such sanitary district and no property may be assessed more than it will be benefited by the improvement for which the assessment is levied or more than its proportionate share of the cost of such improvement. Where the board of trustees determines to issue revenue bonds provided for such waterworks such bonds shall be issued in such amounts as may be necessary to provide sufficient funds to pay all costs of acquisition, including engineering, legal, and other expenses, together with interest to a date 6 months subsequent to the estimated date of completion. Bonds issued for such waterworks are negotiable instruments. They shall be executed by the president and by the district clerk and shall be sealed with the corporate seal of the district. In case any of the officers whose signatures appear on the bonds, or coupons attached thereto, ceases to hold his office before delivery of the bonds, his signature nevertheless shall be valid and sufficient for all purposes the same as if he had remained in office until the delivery of the bonds. The bonds shall be sold in such manner as the trustees shall determine except that, if issued to bear interest at the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, the bonds shall be sold for not less than par and accrued interest, and except that the selling price of bonds bearing less than the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, shall be such that the interest cost to the district of the money received from the bond sale shall not exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, computed to maturity according to standard tables of bond values. The proceedings for making, levying, collecting and enforcing of any special assessment levied under this Section the letting of contracts, performance of the work and all other matters pertaining to the construction and making of the improvement shall be the same, as nearly as may be, as is prescribed in Division 2 of Article 9 of the Illinois Municipal Code, approved May 29, 1961, as now or hereafter amended. Whenever in that Division 2 "city council" or "board of local improvements" are used, the term applies to the board of trustees under this Act, "mayor" or "president of the board of local improvement" applies to the president of the board of trustees constituted by this Act, and any terms applying to the city or its officers in that Article apply to the sanitary district under this Act and its officers.
With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of this amendatory Act of 1989, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of this Act that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Act that may appear to be or to have been more restrictive than those Acts.
70 ILCS 2405/16.5a