Secretary Chuck Carr Brown, PhD.

2016 Louisiana Water Quality Integrated Report

State of Louisiana Water Quality Management Plan

Water Quality Inventory Integrated Report

Section 305(b) and Section 303(d) of the Clean Water Act

On February 10, 2017 the 2016 Louisiana Water Quality Inventory: Integrated Report (305(b)/303(d)) 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. In addition to the changes made by EPA, IRCs for eight water body impairment combinations were changed from IRC 5 (TMDL required) to IRC 4a (TMDL completed). These can be identifed by IRC 41 in the IR Category column. The TMDLs for these impairments were identified during EPA's review period in 2016. The assessments contained in the report are now considered final.

Full Text of 2016 Integrated Report 

Appendix A: 2016 Water Quality Assessments for Louisiana    The preceding two files contain Louisiana's FINAL version of the 2016 Integrated Report-Water Quality Assessments

Appendix A: 2016 Integrated Report Basin Descriptions and Water Body Maps illustrating designated use support.  

EDMS Link for Appendices B-E: Described below


Appendix B: 2016 Category 1 Addendum: Appendix B contains water bodies and suspected causes of impairment that were formerly considered impaired in the 2014 Integrated Report. They are no longer considered impaired by Louisiana. More recent data or information was used to make this determination during the 2016 Integrated Report assessment process. Appendix B is used here as a tool to track changes to the Integrated Report over time.

Appendix C: Complete List of Suspected Causes of Impairment 

Appendix D: Complete List of Suspected Sources of Impairment 

Appendix E: Complete List of Louisiana's Ambient Surface Water Quality Network Sites 

Appendix F: Public Comments on the 2016 Integrated Report and LDEQ's Response to Comments: Appendix F is a compilation of all comments received regarding the 2016 Integrated Report, along with LDEQ's response to those comments.

Appendix G: Louisiana's 2016 Section 303(d) List: Appendix G represents a subset of Louisiana's 2016 Integrated Report (IR) and includes only those water body impairment combinations (WICs) reported as Categories 5, 5-Alt, and 5RC. As has been noted in the body of the IR text, WICs in Categories 5, 5-Alt, and 5RC of the IR assessments are the only WICs on Louisiana's 2016 303(d) List. This table was developed only as an aid to the public and does not constitute Louisiana's 303(d) List. Every effort was made to maintain consistency between Appendix A Categories 5, 5-Alt, and 5RC WICs and Appendix G. However, in order to ensure the accuracy of the overall Integrated Report, only those WICs in Appendix A, Categories 5, 5-Alt, and 5RC, constitute the official 2016 303(d) List (please see Appendix A for other WIC impairments).

Page created May 20, 2016

Last updated February 15, 2017