Sewerage is the system by which waste matter is carried away in sewers and made harmless. without access to any services such as water or sewerage. the system by which waste material and water is carried away in sewers and then treated to stop it being harmful
a system of pipes to convey sewage to the place of disposal or treatment The term sewerage is analogous to sewer reticulation or drainage system
Provision, maintenance, and operation of sanitary and storm sewer systems and sewage disposal and treatment facilities Source: U S Census Bureau Government Finance and Employment Classification Manual