§ 15-7-501 — Definition

As used in this article, "sewerage system" means a sewerage
treatment plant, or plants, collecting, intercepting and outlet
sewers, force mains, conduits, pumping stations, ejector
stations and all other appurtenances or improvements, or any of
them, necessary or useful and convenient for the collection,
treatment and disposal, in a sanitary manner, of sewage and
industrial wastes.