### Question
How is the term pollutant defined?


### Answer
The term **pollutant** is defined in *40 CFR § 401.11* as the following:

> dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal and agricultural waste discharged into water. 

#### Citation:
  - *40 CFR § 401.11*
  - Heading: **PART 401—GENERAL PROVISIONS > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS**

