### Question
How is the "source" defined?


### Answer
The term **source** is defined in *33 U.S.C. § 1316* as follows -

> any building, structure, facility, or installation from which there is or may be the discharge of pollutants

#### Citation:
  - *33 U.S.C. § 1316*
  - Heading: **CHAPTER 26-WATER POLLUTION PREVENTION AND CONTROL > SUBCHAPTER III-STANDARDS AND ENFORCEMENT**

