Water quality in Louisiana is managed under the two broad areas of surface water and groundwater. Surface water management seeks to protect the quality of all waters of the state, including rivers, streams, bayous, lakes, reservoirs, wetlands, estuaries, and many other types of surface water. The Aquifer Evaluation and Protection Unit seeks to protect the quality of all waters found in underground aquifers as well as the surface water sources of that groundwater. For more information on surface water quality data, standards, and assessment please email Water Quality Contact.
2016 Triennial Review - Surface Water Quality Standards for Louisiana
FINAL 2016 Louisiana Water Quality Inventory: Integrated Report (305(b)/303(d))Water Quality Assessment - On February 10, 2017 the 2016 Louisiana Water Quality Integrated Report was approved by EPA with one Integrated Report Category (IRC) revision to one subsegment. All other portions of the report have been fully approved by EPA. The assessments contained in the report are now considered final.
All Other Activities and Reports