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Total Maximum Daily Loads (TMDL) Program

News and Announcements

The Florida Department of Environmental Protection announces a public meeting beginning at 11 a.m. EDT on May 24, 2022, to receive comments on a proposed framework for prioritizing waters and setting two-year work plans for TMDL development. The framework will align with the statewide biennial assessment and will guide TMDL development for the next decade.

Only the proposed priority setting process will be discussed at the public meeting. Another meeting will be held in the summer of 2022 to present the proposed TMDL development work plan for the next two years.  

TMDL Meeting Information Location

Public Meeting on the Framework for TMDL Prioritization 2.0

May 24, 2022, 11 a.m. EDT

Agenda

2600 Blair Stone Road
Bob Martinez Center, Room 609
Tallahassee, FL 32399

Webinar Registration 

 

What is a TMDL? 

A TMDL is a scientific determination of the maximum amount of a given pollutant that a surface water can absorb and still meet the water quality standards that protect human health and aquatic life. Water bodies that do not meet water quality standards are identified as "impaired" for the particular pollutants of concern - nutrients, bacteria, mercury, etc. - and TMDLs must be developed, adopted and implemented to reduce those pollutants and clean up the waterbody.

The threshold limits on pollutants in surface waters - Florida's surface water quality standards on which TMDLs are based - are set forth primarily in rule 62-302, Florida Administrative Code (F.A.C.), and the associated table of water quality criteria.

What are the basic steps in the TMDL program? How does it work?

  1. Assess the quality of surface waters-are they meeting water quality standards? (Surface Water Quality Standards - Chapter 62-302).
  2. Determine which waters are impaired-that is, which ones are not meeting water quality standards for a particular pollutant or pollutants. (Impaired Waters Rule (IWR) - Chapter 62-303).
  3. Establish and adopt, by rule, a TMDL for each impaired water for the pollutants of concern-the ones causing the water quality problems. (TMDLs - Chapter 62-304).
  4. Develop, with extensive local stakeholder input, Basin Management Action Plans (BMAPs) that:
  • Implement the strategies and actions in the BMAP.
  • Measure the effectiveness of the BMAP, both continuously at the local level and through a formal re-evaluation every five years.
  • Adapt-change the plan and change the actions if things aren't working.
  • Reassess the quality of surface waters continuously.

We are working on a more comprehensive approach to protecting Florida water quality involving basin-wide assessments and the application of a full range of regulatory and non-regulatory strategies to reduce pollution. The Total Maximum Daily Load is the heart of this comprehensive approach.

Locations of the DEP's Adopted TMDLs

  • For locations of TMDLs in Florida, please view our interactive TMDL map and  Status of TMDLs in Florida documents (Rule 62-304, F.A.C.).
  • Please help us improve our service by providing feedback on what you think of our adopted TMDL document, whether it is useful, and how could we make it better. Please contact Ken Weaver, 850-245-8414.
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Last Modified:
May 9, 2022 - 12:08pm

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