Collector Sewer

A sewer located in the public way collects the wastewaters discharged through building sewers and conducts such flows into larger interceptor sewers and pumping and treatment works. (Referred to also as “street sewer.”)

Colloidal

Very small insoluble non diffusible particles that remain in suspension.

Combined Sewer Sytem

A single network of sewers designed to convey stormwater as well as sanitary flows.

Compaction

The densification of a soil by means of mechanical manipulation.