Louisiana Pollutant Discharge Elimination System (LPDES) Individual Permit Information

Surface Water Discharge Permits

Louisiana's Water Quality Regulations (LAC 33:Chapter IX) require permits for the discharge of pollutants from any point source into waters of the state of Louisiana. This surface water discharge permitting system is administered under the Louisiana Pollutant Discharge Elimination System (LPDES) program. LDEQ became a state delegated to administer the NPDES Program in August of 1996. See the most recent Memorandum of Agreement (MOA) between EPA Region 6 and DEQ here.

The Water Permits Division, within the Office of Environmental Services, consists of two LPDES Water Permitting Sections: Industrial Water Permits and Municipal & General Water Permits. Permitting responsibilities are distributed between the two sections based on facility type.

Individual Permit Application Forms are specific to facility type (i.e. sanitary or industrial).  Navigate to the Water Forms site to find all Water Permit application and forms.

LPDES Permit Status

View draft individual LPDES permits currently at public notice.

Check permit status.

Quarterly Water Permits Division Actions

Below are listing of LPDES permits and Biosolids/Sewage Sludge permits issued by quarter.  List should be posted by the 15th of the month following the quarter.   All final documents and associated information can be found in LDEQ's Electronic Document Management System (EDMS) by searching on the Agency Interest (AI) number.

The issue date for individual LPDES permits is the date that the permit is signed by the signatory authority.  This date can be found on the tan cover page included in individual LPDES permits.

The issue date for coverage under general LPDES permits is the date stamped on the cover letter mailed with the general permit. 

Click on the month range/year to access each quarterly report.

Permit codes used in documents: NAP - New Application; MIM - Minor Modification; RAP - Renewal Application; MAM - Major Modification; GNP - General New Coverage; GRP - General Renewed Coverage; GMP - General Modified Coverage

LPDES Support Documents

Click on the following resource documents, which are utilized in the development of LPDES permits.

• Standard Conditions for all LPDES Permits (Part III) authorized under LAC 33:IX.2701 applies to all LPDES permits, individual and general.
• May 18, 2016 Fish and Wildlife Service MOU establishes those sensitive areas, types of permits, pollutants of concern and listed species for which LDEQ provides the US Fish and Wildlife Service an opportunity to review LPDES permits.
• U.S. Fish and Wildlife Service Endangered Species Act (ESA) Consultation and Migratory Bird Treaty Act (MBTA) Project Review
• The Louisiana State Historic Preservation Officer (LSHPO) MOU establishes the LPDES permitting procedures to ensure LSHPO has the opportunity to investigate and comment on permit activities.
• The Guidance Document for Implementation of Louisiana's Water Quality Standards, Version 10 as part of the Louisiana Water Quality Management Plan establishes procedures to effectively implement Louisiana's water quality standards into LPDES surface water discharge permits.
• Region 6 Development of Minimum Quantification Levels October 30, 2007
• 2010 Coastal Boundaries and Maritime Limits
• Mercury Minimization Program Guidance for Permits Issued under the LPDES Program, September 2009

Additional Links

• EPA Region 6 Website
• LDHH Office of Public Health - Center for Environmental Health