65 ILCS 5/8-5-15
In a city or village having a population of less than 500,000, a petition, signed by electors of the city or village equal in number to not less than 10% of the number of votes cast for the candidates for mayor or president at the last preceding general municipal election at which a mayor or president was elected, may be presented to the corporate authorities of such a city or village asking that the question, whether that city or village shall incur additional indebtedness for the construction of impounding dams and artificial lakes for water supply purposes, together with the land and equipment necessary and incidental thereto, be submitted to the electors of that city or village. Thereupon, this question shall be certified by the clerk to the proper election authority and submitted at an election in accordance with the general election law.
This question shall be in substantially the following form:
-------------------------------------------------------------------- Shall the city (or village) of.... incur additional indebtedness for the construction YES of impounding dams and artificial lakes for -------------------- water supply purposes, together with the land NO and equipment necessary and incidental thereto? --------------------------------------------------------------------
If a majority of the votes cast on this question are in the affirmative, the additional indebtedness for water supply purposes is approved.
65 ILCS 5/8-5-15