70 ILCS 2805/11
The board of trustees may borrow money for corporate purposes, including, without limiting the generality of the foregoing, sewer, drainage, and waterworks purposes, and in evidence thereof issue its bonds payable from taxes unlimited as to rate or amount and to be extended for collection against all taxable property situated therein but shall not become indebted in any manner or for any purpose to an amount which including all other existing indebtedness in the aggregate will exceed 5.75% on the value of the taxable property therein to be ascertained by the last assessment for state and county purposes previous to the incurring of the indebtedness or, until January 1, 1983, if greater, the sum that is produced by multiplying the district's 1978 equalized assessed valuation by the debt limitation percentage in effect on January 1, 1979, provided, however, that no indebtedness shall be incurred and no bonds be issued under the provisions of this Section for waterworks purposes until after the proposition of the acquisition, purchase or construction of a waterworks, and to thereafter operate, improve and extend such waterworks has been submitted to the legal voters of the district and been approved by a majority of the voters voting on the question at a referendum and responsive to the provisions hereinafter contained in this Act requiring the affirmative vote of the legal voters of the district to authorize the trustees of sanitary districts organized under the provisions of this Act to acquire by purchase or construction, and thereafter operate, improve or extend waterworks. Whenever the board of trustees of such district desires to issue bonds under the provisions hereof, they shall certify the question of issuing such bonds to the proper election officials who shall submit the question at an election in accordance with the general election law. In addition to the requirements of the general election law, notice of such referendum shall state the amount of bonds to be issued and the purpose for which such bonds are to be issued. The result of the referendum shall be entered upon the records of the district. If it shall appear that a majority of the voters voting at the election on such question shall have voted in favor of the issue of such bonds, the board of trustees shall order and direct the execution of the bonds by, for and on behalf of the district. All bonds issued hereunder shall mature within 20 years from their date and be payable at such time or times and at such place as the board of trustees may prescribe. The question shall be in substantially the following form:
------------------------------------------------------------------------ Shall bonds to the amount of.... dollars be YES issued by the.... sanitary ---------------------------------------- district for the purpose of NO ....(state purpose) ------------------------------------------------------------------------
Provided that the board of trustees may borrow money for corporate purposes, and may issue bonds therefor, without holding an election or referendum upon the question, if the board of trustees has been directed by an order issued by a court of competent jurisdiction or by an administrative agency of the State of Illinois having jurisdiction to issue such order, to abate its discharge of untreated or inadequately treated sewage, and such borrowing is deemed necessary by the board of trustees of the Sanitary District to make possible compliance with such order. The amount of money that the board of trustees may borrow to abate such sewage discharge shall be limited to that required for that purpose plus such reasonable future expansion as shall be approved by the court or an administrative agency of the State of Illinois having jurisdiction. The ordinance providing for such bonds shall set out the fact that such bonds are deemed necessary to make possible compliance with the order, and shall be published or posted in the manner provided in this Act for publication or posting of ordinances making appropriations. The ordinance shall be in full force and effect after its adoption and publication or posting, as herein provided, notwithstanding any provision in this Act or any other law to the contrary.
70 ILCS 2805/11