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.
Composite Ring Brick Sewer
A brick sewer which consists of a greater number of layers of brick above the springing line than below the springing line.
Compounding
The process where additives and carbon black are homogeneously mixed with the base polyethylene.