A DEPARTMENT OF THE STATE OF LOUISIANA

WATER

Water Quality Standards and Assessment

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 the Water Planning and Assessment Division.

Current Events

Public Notice of Corrective Action on 2016 Water Quality Integrated Report - It has recently come to the attention of the Louisiana Department of Environmental Quality, Water Planning and Assessment Division that Calcasieu River and Ship Channel (LA030301_00) was incorrectly assessed as impaired with the suspected cause of “Oxygen, Dissolved” for Louisiana’s 2016 Water Quality Integrated Report (IR). The proposed corrective action is described in Documentation of Corrective Action. The public comment period begins Wednesday, May 31, 2017 and ends at 4:30 p.m., Monday, July 3, 2017. 

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.

 

A Long-Term Vision for Assessment, Restoration, and Protection under the Clean Water Act Section 303(d) Program

All Other Activities and Reports