Triennial Review

What is the Triennial Review?

Federal regulations require that states hold public hearings at least once every three years to review applicable surface water quality standards and, as appropriate, adopt new or modified standards, taking into consideration public concerns, EPA guidance, and new scientific and technical information.  This process is called a triennial review.  The triennial review also provides an opportunity to discuss the priorities and commitments the agency makes with EPA and others regarding surface water quality standards.

2016 Triennial Review Background

The triennial review for the Surface Water Quality Standards of Louisiana began on January 20, 2016 when a Potpourri notice (1601Pot1) was published in the Louisiana Register.  A public hearing was held at 1:30 pm on March 30, 2016 in the Galvez Building, Oliver Pollock Conference Room, 602 N. Fifth Street, Baton Rouge, Louisiana.  The agency accepted comments until 4:30 pm on March 30, 2016.  All comments received during the comment period were reviewed and used to assist in establishing public concerns and setting water quality priorities.  The agency addressed public comments and identified priorities in the document 2016 Triennial Review: Report of Findings.  The agency also evaluated all Clean Water Act Section 304(a) criteria recommendations for the triennial review.  The results of these triennial review efforts have been developed into a proposed rule (WQ097), which will update portions of the water quality standards found in LAC 33:IX.Chapter 11.

The Environmental Regulatory Code version of LAC 33:IX, Water Quality, Subpart 1. Water Pollution Control, Chapter 11 Surface Water Quality Standards, can be accessed electronically at: http://www.deq.louisiana.gov/portal/DIVISIONS/LegalAffairs/RulesandRegulations/Title33.aspx

Status of the 2016 Triennial Review

The US Environmental Protection Agency technical review of proposed rule WQ097 is complete.  A listing of all the agency’s actions per Section 304(a) criteria recommendation is provided below.  Proposed rule WQ097 has been published in the December 20, 2019 edition of the Louisiana Register. A link for public review and comment of the proposed rule WQ097 is provided here.

August 2020 Status

The Department reviewed comments received during the original public comment period and concurs with some of the recommended changes to WQ097.   A summary of the department’s responses to these comments can be found at: https://edms.deq.louisiana.gov/app/doc/view.aspx?doc=12276841&ob=yes&child=yes.  The recommended changes were deemed substantive, requiring an additional public notice in the August 2020 edition of the Louisiana Register, which will be followed with a public hearing.  The August 2020 Louisiana Register can be found at: https://www.doa.la.gov/Pages/osr/reg/regs2020.aspx.

Please e-mail WQ.Standards@la.gov if you have any questions related to the triennial review.

Tentative Timeline of the 2016 Triennial Review

Section 304(a) Recommendations