Sewerage
Pronunciation : Sew"er*age
Part of Speech : n.
Definition : 1. The construction of a sewer or sewers.
2. The system of sewers in a city, town, etc.; the general drainage of a city or town by means of sewers.
3. The material collected in, and discharged by, sewers. [In this sense sewage is preferable and common.]
Source : Webster's Unabridged Dictionary, 1913