The Plan Commission shall consist of the mayor, who shall be its presiding officer, 1 alderperson, and 6 citizen members. The chairperson or designee of the Lake Welfare Committee and Park and Recreation Commission, shall be appointed as citizen members together with 4 additional citizen members. The Plan Commission shall at all times consist of 8 members. Members shall for cause be removable by the City Council. The Plan Commission reviews and make decisions on business plans of operation, certified survey maps, plats, zoning and ordinance changes.