70 ILCS 2805/32b.1
The board of trustees of any sanitary district created hereunder, after receiving a petition in writing, signed by not less than 50% of the legal voters and not less than 50% of the record owners of land in any contiguous territory situated within such sanitary district, shall have the power, by the issuance of revenue bonds, or by special assessment, as determined by ordinance of the board of trustees, to purchase or construct waterworks within such contiguous territory and thereafter operate, maintain, improve and extend such waterworks as defined in this Act. Such petition, when submitted to the board of trustees, shall contain an estimate of the cost of the purchase or construction of such waterworks. The ordinance to provide for the purchase or construction of such waterworks shall be adopted only by a vote of a majority of the members of the board of trustees. Such ordinance shall contain an accurate description of the territory which will be affected by the purchase or construction of the waterworks, and the costs of such purchase, construction, improvement or extension shall be paid solely by the issuance and sale of revenue bonds of the district secured by and payable solely from the revenue to be derived from the operation of such waterworks, or by special assessment, as the case may be.
Revenue bonds provided for in this Section may be issued in such amounts as may be necessary to provide sufficient funds to pay all costs of purchasing or constructing such waterworks, including engineering, legal and other expenses. Such bonds shall bear interest at a rate not exceeding the rate 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 semi-annually, and shall be payable at such times and places not exceeding 30 years from their date as shall be prescribed in the ordinance providing for their issuance. However, if the board of trustees determines by ordinance that the purchase and construction of such waterworks is to be secured and paid by special assessment, then the proceedings for making, levying, collecting and enforcing any special assessment levied hereunder, the letting of contracts, the issuance of special assessment bonds, the performance of the work and all other matters required or pertaining to the purchase or construction and making of the improvements or extensions shall be as provided in Division 2 of Article 9 of the Illinois Municipal Code, as heretofore and hereafter amended. Whenever in said Division 2 the words "city council" or the words "board of local improvements" are used, the same shall apply to the board of trustees constituted by this Act, and the word "mayor" or "president of the board of local improvement" shall apply to the president of the board of trustees constituted by this Act, and the words applying to the city or its officers in that Article shall be held to apply to the sanitary district created under this Act and its officers.
70 ILCS 2805/32b.1