(a)
Effluent means the liquids or other substance flowing out of any plant or facility constructed and operated for the discharge of sewage, industrial wastes and any liquid or other discharge.
(b)
Outlet means the point of discharge of an effluent or other substance into the atmosphere, underground, ditch, or other area, watercourse, or other body of surface or ground water, and onto any surface or place.
(c)
Watercourse means any channel either natural or artificial for the flow of water.
(d)
Water pollution means an impairment of the quality of the underground or surface waters by sewage, dead animals, garbage, discarded metal articles, industrial wastes or any other thing which adversely affects the use of such water for domestic, industrial, agricultural, navigational, recreational or other purposes.