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Total Maximum Daily Loads Highlights

Total Maximum Daily Loads (TMDL) Program
 

News & Announcements

New! The public is invited to provide comments on nutrient total maximum daily loads (TMDLs) developed for  the nutrient impairment of the Wacissa River and Wacissa Springs Group (WBIDs 3424 and 3424Z), in the Aucilla River Basin. Draft reports for these TMDLs are available on the Departmentís Draft TMDL webpage, for public review. The meeting will be held at 7:00 pm on August 25, 2016 at Dorothy Cooper Spence Community Center, 4768 Chaires Cross Road, Tallahassee, Florida. Written comments on these TMDLs, as well as the establishment of these nutrient TMDLs as site specific interpretations of the narrative nutrient criteria, should be directed to: Richard Hicks, PG Administrator, Ground Water Management Section, Florida Department of Environmental Protection, Mail Station #3575, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400. Written comments on these TMDLs will be accepted by the Department through September 8, 2016.

The public is invited to provide comments on the Department's proposed steps to refine the existing watershed and receiving water models and use these models for TMDL target setting and load estimations for waterbodies within Charlotte, Lee, Hendry and Glades Counties in the Caloosahatchee River Basin. Written comments on the model approach should be directed to: Erin Rasnake, Program Administrator, Water Quality Evaluation and TMDL Program, Florida Department of Environmental Protection, Mail Station #3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400.


Everglades sceneWhat 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 for those pollutants to reduce pollutants and clean up the water body.

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, 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....
  5. Implement the strategies and actions in the BMAP.
  6. Measure the effectiveness of the BMAP, both continuously at the local level and through a formal re-evaluation every five years.
  7. Adapt--change the plan and change the actions if things aren't working.
  8. 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 (TMDL) is the heart of this comprehensive approach.

Locations of the Department's Adopted TMDLs

For locations of TMDLs in Florida, please see our State of Florida Adopted TMDLs and Status of TMDLs in Florida documents (State Rule 62-304, Florida Administrative Code F.A.C.). Additionally, you can view our interactive TMDL map.

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 Jonathan Turner (Jonathan.Turner@dep.state.fl.us), (850) 245-8438 or Janis Morrow (Janis.Morrow@dep.state.fl.us), (850) 245-8543.


For more information on the development of water quality restoration goals (TMDLs), send e-mail to Erin Rasnake.

Water Quality Evaluation & TMDL Program
2600 Blair Stone Road - Mail Station 3555
 Tallahassee, FL, 32399-2400
Phone: (850) 245-8338


For information on TMDL grants, Section 319 (nonpoint source) grants, and other financial assistance for water infrastructure projects or implementation of urban or agricultural best management practices, please see our financial assistance webpage to determine what opportunities might be right for your project.

Background

Basin 411

Basin Management Action Plans (BMAPs)

Dissolved Oxygen Criteria in Surface Waters

Frequently Asked Questions

Glossary

Overview of TMDL Program

Numeric Nutrient Criteria

Pollutant Trading PAC

TMDL Tracker

Watershed Assessment

TMDL Documents

Other WWW TMDL Links

Last updated: August 19, 2016

  2600 Blair Stone Road M.S. 3500   Tallahassee, Florida 32399   850-245-8336 (phone) / 850-245-8356 (fax) 
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