Tex. Water Aux. Laws § 7834

On the second Tuesday of January after the establishment of such district, and biennially thereafter, an election for such directors shall be held in each such county in accordance with the election laws of this State and the provisions of this chapter for elections for establishing a district. Said directors shall hold office for two years. The directors shall give notice of the election, appoint election officers, receive and canvass the election returns and perform all other duties necessary for holding said elections.