(1) Any city of the first or second class operating its municipal waterworks through a waterworks commission, by passage of a municipal ordinance, may authorize the waterworks commission to function as a waterworks and sewer commission.
(2) Waterworks and sewer commissions created pursuant to the authority granted in this section shall retain all powers now granted to waterworks commissions and, in addition, shall have all the powers granted to sewer committees by §§ 14-235-206 and 14-235-207 and all the powers granted to sanitary boards by § 14-235-209.
(3) It is the express purpose of this section to permit cities of the first and second class to operate their waterworks and sewer systems through a single commission.