La. Stat. tit. 33 § 3913
The governing authority of the municipality creating the sewerage district shall be the governing authority of any sewerage district created under the provisions of this Subpart.
Said governing authority may appoint a board of sewerage commissioners to consist of five members whose terms of office shall be four years and until their successors have been appointed. The board of sewerage commissioners, subject to the supervision and approval of the governing authority of the municipality creating the district, may be vested with authority to manage the affairs of the district, let contracts for the construction, maintenance and operation of the sewer system of the district, expend revenues of the district, and appoint its secretary and fix his salary. The treasurer of the municipality shall be ex-officio treasurer of the district, and the attorney for the municipality shall be ex-officio attorney for the district, and shall serve as such without additional remuneration. The appointment of said board of sewerage commissioners shall be left to the discretion of the governing authority of the municipality creating the district and nothing herein shall require the appointment of such a board, and, if appointed, such board may be abolished at any time by a resolution adopted by unanimous vote of the governing authority for the municipality.
In addition to the powers granted elsewhere in this Subpart, the sewerage district, through its governing authority, may enter into contracts with other sewerage districts or the municipality in which it is located providing for the joint construction and financing of a new sewer system or extensions and improvements to any existing sewer system and such contracts shall cover all matters in relation thereto, including the future operation and maintenance of the system.
La. R.S. § 33:3913