The five commissioners initially appointed shall be appointed for terms of one, two, three, four and five years, respectively, and they shall serve until their successors shall have been appointed and qualified. All commissioners thereafter appointed at the expiration of such respective terms shall be appointed by the police jury or police juries for terms of five years. Any vacancy which otherwise occurs shall be filled by appointment of the police jury or police juries for the unexpired term. In making such appointments due regard shall be had for the requirement that the board of commissioners shall include at least one qualified voter and resident of each municipality which has been included in the district by consent of its governing authority.
La. R.S. § 33:4564