Tex. Water Code § 60.245

A district which is converted under the provisions of this subchapter shall be constituted a district operating under Article XVI, Section 59, of the Texas Constitution and shall be governed by the provisions of Chapter 62 of this code as if it had originally been organized under Article XVI, Section 59, of the Texas Constitution, except the commissioners of a converted district shall be appointed in the manner that initial commissioners are appointed under Sections 62.061 and 62.062 of this code.