An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Louisiana NPDES Permits

In Louisiana, EPA issues NPDES permits on tribal lands. For more information, please contact EPA Region 6. All other permits are issued by the Louisiana Dept. of Environmental Quality.

For state-issued permits, visit Louisiana Pollutant Discharge Elimination System (LPDES) Exit

For offshore oil and gas permits, see Western and Central Gulf of Mexico Offshore Oil & Gas NPDES Program.