(b) Upon presentation to the board of trustees of a petition signed by not fewer than 100 of the electors of the district requesting that a proposition for the election of trustees be submitted to the electors of the district, the secretary of the board of trustees shall certify the proposition to the appropriate election authorities, who shall submit the proposition at a regular election in accordance with the general election law. The proposition shall be in substantially the following form: Shall the trustees of (name of public water district) be elected, rather than appointed?
If a majority of the votes cast on the proposition are in the affirmative, the trustees of the district shall thereafter be elected as provided by this Section.