70 ILCS 2105/17
The board of trustees annually may levy and collect taxes for corporate purposes upon property within the territorial limits of such conservancy district, the aggregate amount of which for each year shall not exceed .083% of the value, as equalized or assessed by the Department of Revenue, of the taxable property within the corporate limits. Such annual tax levy may be increased to .75% in any district having a population of less than 25,000, and to .375% in any district having 25,000 inhabitants or more, when such increased tax has been authorized by the legal voters of such district at a referendum in accordance with the general election law.
The right to levy such additional tax, authorized by the legal voters of the District, may at any time after one or more tax levies be terminated by a majority vote of the electors of such district at a referendum. Upon the petition of 10% of registered voters of the district, it shall be the duty of the trustees of any such district to certify the proposition to terminate such additional taxing power to the proper election officials who shall submit the proposition at an election in accordance with the general election law.
The board shall cause the amount required to be raised by taxation in each year to be certified to the county clerks in each county within such district on or before the second Tuesday in August, as provided in the General Revenue Law of Illinois. All taxes so levied and certified shall be collected and enforced in the same manner and by the same officers as State and county taxes, and shall be paid over by the officer or officers collecting the same to the treasurer of the conservancy district in the manner and at the time provided by the General Revenue Law of Illinois.
The treasurer shall, when the moneys of the district are deposited with any bank or savings and loan association, require such bank or savings and loan association to pay the same rates of interest for such moneys deposited as such bank or savings and loan association is accustomed to pay depositors under like circumstances in the usual course of its business. All interest so paid shall be placed in the general fund of the district, to be used as other moneys belonging to such district raised by general taxation.
No bank or savings and loan association shall receive public funds as permitted by this Section, unless it has complied with the requirements established pursuant to Section 6 of "An Act relating to certain investments of public funds by public agencies", approved July 23, 1943, as now or hereafter amended.
70 ILCS 2105/17