Sec. 3. The construction, acquisition, improvement, operation, and maintenance of sewage works under this chapter shall be supervised and controlled by the municipal works board. However, the municipal legislative body may, by ordinance, transfer the powers and duties of the works board under this chapter to:
(1) a sanitary board established under section 4 of this chapter; or
(2) the utility service board, if the municipality has such a board operating one (1) or more municipally owned utilities.