70 ILCS 905/3a

Upon a petition containing the signatures of not less than 10% of the legal voters of a town or road district requesting that the town or road district become a part of an existing public health district, which is approved by the board of health of such existing health district and filed with the county clerk, the proposition of such town or road district becoming part of such public health district shall be submitted to the voters of said town or road district in the manner provided by the general election law.