Tex. Water Code § 60.247

(a) If the navigation board finds in favor of the conversion of the district but pursuant to Subsection (b) of Section 60.244 of this code provides that the conversion is not final, the commissioners court of jurisdiction shall order an election to be held in the district and shall submit to the electors residing in the district the proposition of whether or not the district should be converted and should be authorized to continue to levy an annual tax for the maintenance, operation, and upkeep of the district of not to exceed 10 cents on the $100 valuation of all property within the district.

(b) The clerk of the commissioners court of jurisdiction shall give notice of the election by posting notices at the courthouse door of the county in which the district is located and at four other public places in the district.

(c) If the district is composed of more than one county, the notices required by Subsection (b) of this section shall be posted in each county.

(d) The notices must be posted for 30 days immediately preceding the time set for election.

(e) The notices must include:

(1) the time and place of the election;

(2) the proposition to be voted on; and

(3) a copy of the election order.

(f) The commissioners court by order shall define the voting precincts in the district and shall name convenient polling places in the precincts.

(g) Immediately after the election, the officers holding the election shall make returns of the results to the commissioners court of jurisdiction, and the commissioners court shall promptly canvass the returns at a regular or special session of the commissioners court following the election.