### Question
How does the law define Basin?


### Answer
Under *33 U.S.C. § 1273*, **Basin** is defined as:

> the Lake Pontchartrain Basin, a 5,000 square mile watershed encompassing 16 parishes in the State of Louisiana and 4 counties in the State of Mississippi

#### Citation:
  - *33 U.S.C. § 1273*
  - Heading: **CHAPTER 26-WATER POLLUTION PREVENTION AND CONTROL > SUBCHAPTER I-RESEARCH AND RELATED PROGRAMS**

