Enacts new GS 162A-82 to require a city with a population over 75,000 that is within a county with a population of 200,000 or over and that is served by a metropolitan sewerage district (for example, Asheville) to convey its water system to the Metropolitan Sewerage District within one year of the effective date of this bill. Authorizes the sewerage district then to operate with the powers of a metropolitan water district and prohibits the city from operating a water system.