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Watershed Assessment Highlights

Watershed Assessment Program


News & Announcements

New! The Department announces the availability of amended Verified and Delist Lists of impaired waters for the Cycle 3 - Group 1 and Cycle 2 - Group 2, 3, and 5 Basins

The Department has published revised verified lists of impaired waters and delist lists by Secretarial Order (signed by DEP Secretary Herschel Vinyard, Jr. and filed by the Department clerk on January 27, 2014) for the Group 1 (Suwannee, Ocklawaha, and Tampa Bay); Group 2 (Middle St. Johns River and Tampa Bay Tributaries); Group 3 (Choctawhatchee – St. Andrews); and Group 5 (Everglades, Indian River Lagoon, Springs Coast, and Upper East Coast) basins. 

The Department continuously strives for accurate and scientifically defensible assessments with the goal of identifying impaired waters and restoring water quality.  These lists were revised to make necessary changes in response to additional information provided to and evaluated by the Department.  The amended lists can be found at the links provided above and include the Office of General Counsel case numbers for the listings.

Now that these lists have been adopted by Secretarial Order, the Department staff will prioritize waters on the verified list for TMDL development.  A Total Maximum Daily Load (TMDL) represents the maximum amount of pollutant loading that can be discharged to a waterbody and still attain its designated uses.  After TMDL adoption, the next step in this process will be the development, by watershed stakeholders and the Department, of a Basin Management Action Plan (BMAP).  The BMAP will specify the activities, schedule, and funding sources that point and nonpoint source dischargers will undertake to restore the waterbody.

Change for the Assessment Cycle of the Waterbodies in the Group 2 Basins

In anticipation of numeric nutrient criteria (NNC) for lakes, streams, and springs that the Department adopted in December 2011 becoming effective, the Department wishes to update you on the following change for the assessment cycle of the waterbodies in the Group 2 basins, which includes the Apalachicola-Chipola Rivers, Lower St. Johns River, Middle St. Johns River, Tampa Bay Tributaries, Charlotte Harbor and St. Lucie-Loxahatchee Rivers.  Based on the watershed management cycle, the Department would typically assess the waterbodies in these basins in 2013; however, we are postponing this year’s assessment cycle to align our monitoring programs with our assessment cycle under the new numeric nutrient criteria. For further information please see the Memo to Stakeholders.

tricolored heronFlorida’s rivers, streams, lakes, estuaries, and coastal waters are spectacularly beautiful. More than that, they are essential natural resources, supplying the water necessary for aquatic life, both large and microscopic; drinking water; recreation; industry; fishing and shellfish harvesting; and agriculture. Florida's multi-billion tourist industry would vanish if our water resources were irreparably degraded.

Protecting these abundant water resource, restoring them when they become damaged because of unmanaged growth and development, and preserving them for the future is your responsibility and ours.

DEP's Divisions of Water Resource Management and Environmental Assessment and Restoration implement a wide range of programs to protect and restore Florida's surface waters. Tour this website and you will find dozens of different strategies and activities underway to benefit water quality. At the heart of these efforts, particularly in identifying water quality problems and establishing clean-up objectives, is the Watershed Assessment program.

For more information, send e-mail to Kevin O'Donnell (Kevin.ODonnell@dep.state.fl.us)

Watershed Assessment Program
2600 Blair Stone Road - Mail Station 3560
 Tallahassee, FL, 32399-2400
Phone: (850) 245-8433


Frequently Asked Questions


Learn More About DEP's Basins

Impaired Waters Rule (IWR)

Florida's 303(d) List

Assessment Lists

IWR Runs

Strategic Monitoring Plans

Integrated Assessment 305(b) Reports (Large Files 5+ MB)

2012 | 2010 | 2008 | 2006 | 2004 | 2002

Surface Water Quality Classifications & Standards

Links to Other IWR-Related Resources

Visit "Florida's Water - Ours to Protect"

Last updated: February 05, 2014

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