The County Executive, subject to confirmation by the County Council, must recommend to the Mayor of the District of Columbia one or more persons to serve as members of the Board of Directors of the District of Columbia Water and Sewer Authority, or any successor or substitute body appointed by the Mayor, and one or more other persons to serve as alternate members of that Board. If any other body is created by federal, state, or District of Columbia law to perform any function related to the Blue Plains Wastewater Treatment Plant, any successor facility, or any other part of the metropolitan area water and sewer system in which the County participates, the Executive, subject to confirmation by the Council, must appoint all representatives or members to which the County is entitled. The persons recommended or appointed may, but need not, be officers or employees of the County. (1996 L.M.C., ch. 6, § 1.)