65 ILCS 5/11-141-2
Every municipality may construct or acquire, and may improve, extend, and operate a sewerage system either within or without the corporate limits thereof. Every municipality also may, when determined by its corporate authorities to be in the public interest and necessary for the protection of the public health, enter into and perform contracts, whether long-term or short-term, with any industrial establishment for the provision and operation by the municipality of sewerage facilities to abate or reduce the pollution of waters caused by discharges of industrial wastes by the industrial establishment and the payment periodically by the industrial establishment to the municipality of amounts at least sufficient, in the determination of such corporate authorities, to compensate the municipality for the cost of providing (including payment of principal and interest charges, if any), and of operating and maintaining the sewerage facilities serving such industrial establishment.
Every municipality may borrow money from the United States Government or any agency thereof, or from any other source, for the purpose of improving or extending or for the purpose of constructing or acquiring and improving and extending a sewerage system and, as evidence thereof, may issue its revenue bonds, payable solely from the revenue derived from the operation of the sewerage system by that municipality. These bonds may be issued with maturities not exceeding 40 years from the date of the bonds, and in such amounts as may be necessary to provide sufficient funds to pay all the costs of the improvement or extension or construction or acquisition and improvement and extension of the sewerage system, including engineering, legal, and other expenses, together with interest, to a date 6 months subsequent to the estimated date of completion. These bonds shall bear interest at a rate of not more than the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, payable semi-annually, may be made registerable as to principal, and may be made callable on any interest payment date at a price of par and accrued interest under such terms and conditions as may be fixed by the ordinance authorizing the issuance of the bonds. Bonds issued under this Division 141 are negotiable instruments. They shall be executed by the mayor or president of the municipality and by the municipal clerk and shall be sealed with the corporate seal of the municipality. In case any officer whose signature appears on the bonds or coupons ceases to hold that office before the bonds are delivered, his signature, nevertheless, shall be valid and sufficient for all purposes, the same as though he had remained in office until the bonds were delivered. The bonds shall be sold in such manner and upon such terms as the corporate authorities shall determine, except that the selling price shall be such that the interest cost to the municipality of the proceeds of the bonds shall not exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, payable semi-annually, computed to maturity according to the standard table of bond values.
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.
The amendatory Acts of 1971, 1972 and 1973 are not a limit upon any municipality which is a home rule unit.
65 ILCS 5/11-141-2