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Total Maximum Daily Loads (TMDL) Program

News & Announcements

 
New! The Department of Environmental Protection announces a public meeting to receive comments on the draft nutrient total maximum daily load (TMDL) report for impaired waters in the Middle St. Johns Basin on May 6, 2019, 2:30 p.m at the St. Johns River Water Management District in Maitland, Florida.  These TMDLs as site specific interpretations of the narrative nutrient criterion that are to be presented at the public workshop include: Bethel Lake (WBID 2953), Lake Gem (WBID 2997V), and Lake Orlando (WBID 3004K). Written comments on the TMDL should be directed to: Erin Rasnake, Program Administrator, Florida Department of Environmental Protection, MS 3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400 or via email: Erin.Rasnake@dep.state.fl.us by May 16, 2019.
 
New!  The Department of Environmental Protection announces a public meeting to receive comments on two draft nutrient total maximum daily load (TMDL) reports for impaired waters in the Peace River Basin and Withlacoochee River Basin on May 7, 2019, 9:30 a.m. at the Polk County Parks & Natural Resources Division in Bartow, Florida. These TMDLs as site specific interpretations of the narrative nutrient criterion that are to be presented at the public workshop include: Lake Lulu (1521), Lake Eloise (1521B), Lake Shipp (1251D), Lake May (1521E), Lake Howard (1521F), Lake Cannon (1521H), Lake Hartridge (1521I), Lake Idylwild (1521J), Lake Jessie (1521K), and Lake McLeod (1588A) in the Peace River Basin, and Lake Agnes (1466) in the Withlacoochee River Basin. Written comments on the TMDL should be directed to: Erin Rasnake, Program Administrator, Florida Department of Environmental Protection, MS 3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400 or via email: Erin.Rasnake@dep.state.fl.us by May 17, 2019.
 
New!  The Department of Environmental Protection announces a public meeting to receive comments on the draft nutrient total maximum daily load (TMDL) report for impaired waters in the Withlacoochee Basin,  on May 15, 2019, 1:30 p.m. in Dunnellon, Florida. These TMDLs as site specific interpretations of the narrative nutrient criterion that are to be presented at the public workshop include: Wilson Head Spring (WBID 1329R), Blue Spring (Citrus County) (WBID 1329S), and Gum Springs (WBID 1338A). Written comments on the TMDL approach should be directed to: Erin Rasnake, Program Administrator, Florida Department of Environmental Protection, MS 3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400 or via email: Erin.Rasnake@dep.state.fl.us by May 24, 2019.
 
New!  The Division of Environmental Assessment and Restoration will present Total Maximum Daily Loads (TMDLs) rules, for certain waters impaired for nutrients in the Hillsborough River Basin on June 14th, 2019, 2:00 p.m. in Tallahassee, Florida. These TMDLs as site specific interpretations of the narrative nutrient criterion that are to be presented at the public hearing include: Lake Thonotosassa (1522B) and Flint Creek (1522A). Written comments on the TMDL should be directed to: Erin Rasnake, Program Administrator, Florida Department of Environmental Protection, MS 3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400 or via email: Erin.Rasnake@dep.state.fl.us
 
New!  The Division of Environmental Assessment and Restoration announces a public meeting for certain waters impaired for nutrients in the Ochlockonee River Basin on June 5th, 2019, at  2:00 p.m. in Tallahassee, Florida. The workshop will provide an opportunity for the Department to present and respond to any public comments about the model set provided on April 12, 2019 that will be used in the development of the Lake Talquin nutrient TMDLs, and outline the next steps in the TMDL development. Written comments should be directed to: Erin Rasnake, Program Administrator, Florida Department of Environmental Protection, MS 3555, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400 or via email: Erin.Rasnake@dep.state.fl.us

 

TMDL

Meeting Information

Location

Middle St. Johns Basin: 
Bethel Lake (WBID 2953), Lake Gem (WBID 2997V), and Lake Orlando (WBID 3004K) 

May 6, 2019, 2:30 p.m

(Meeting Agenda)

St. Johns River Water Management District
Maitland Office (Econ and Wekiva Conference Rooms)
601 South Lake Destiny Road, Suite #200
Maitland, Florida 32751
Peace River Basin and Withlacoochee River Basin
 

 May 7, 2019, 9:30 a.m.

(Meeting Agenda)

Polk County Parks & Natural Resources Division
4177 Ben Durrance Road
Bartow, Florida
Withlacoochee River Basin:
May 15, 2019, 1:30 p.m.

Dunnellon Library
20351 Robinson Way
Dunnellon, Florida

Ochlockonee River Basin: Lake Talquin (west) WBID 1297X , Lake Talquin (central) WIBD 1297Y, Lake Talquin (east) WBID 1297Z

 

June 5, 2019, 2:00 p.m. 

(Workshop Agenda)

Florida Department of Environmental Protection, Carr Building #170
3800 Commonwealth Blvd.
Tallahassee, FL 32303
 Hillsborough River Basin:
Lake Thonotosassa (1522B) and Flint Creek (1522A)

June 14th, 2019, 2:00 p.m. EST

(Hearing Agenda)

Bob Martinez Center
2600 Blair Stone Road
Conference Room 176
Tallahassee, Florida 32399
 

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 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 (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....
  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 view our interactive TMDL map and Status of TMDLs in Florida documents (State 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 Erin Rasnake at Erin.Rasnake@dep.state.fl.us, 850-245-8338, or Janis Morrow at Janis.Morrow@dep.state.fl.us, 850-245-8543.

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Last Modified:
May 3, 2019 - 11:36am

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