The department uses water quality data from a wide variety of
sources, including its own monitoring programs, to regularly assess
Florida’s rivers, lakes, springs and estuaries to determine whether they
meet publicly adopted water quality standards. These standards are
established to protect public health, preserve aquatic habitat and
wildlife, and assure safe and healthy fishing and recreational uses.
Surface waters that do not meet the standards set for them are
determined to be “impaired” and in need of restoration.
Because funds are limited and Florida’s surface water resources are
so expansive and diverse, the department has sorted those resources into
29 major watersheds, or basins, and further organized them into five
basin groups for assessment purposes. One group (one-fifth of the
basins) is assessed each year as part of a repeating five-year cycle
designed to gather an ever-more complete understanding of water quality.
Below are links to the statewide comprehensive Verified List,
statewide comprehensive Delist List, as well as Lists
adopted by Secretarial Order. These lists are up to date with
the most recent data, including assessments adopted June 27, 2017 for
Group 4 basins. As water quality improves and assessments are refined,
these lists will be updated through formal adoption processes each year.
Using the data from these assessments, the department has verified many waterbodies, or segments of those waterbodies, as impaired (not meeting
standards). Others have been “delisted” because a previously identified
impairment cannot be verified or a Total Maximum Daily Load (TMDL) has
Statewide Comprehensive Verified List of Impaired Waters
This list contains waterbody-parameter combinations that have
been verified as impaired based on criteria and assessment
methodologies in chapters 62-302 and 62-303, F.A.C., respectively. Waterbodies
verified as impaired and that have not subsequently been delisted
(see below) remain on the Verified List. Thus, the list provides
the comprehensive compilation of waters currently considered
impaired and identifies the county that at least a portion of the
Statewide Comprehensive Delist List
This list contains waterbody-parameter combinations that have been
removed from the Verified List based on delisting methodologies in
chapter 62-303, F.A.C. There are several reasons why a
waterbody parameter may be delisted, including but not limited to: a
subsequent assessment determining that a waterbody-parameter is no
longer impaired based on current water quality standards, if there has
been a Total Maximum Daily Load completed for the verified impaired
parameter or if a flaw in a previous assessment has been determined.
This list provides the comprehensive compilation of waters that have
met the requirements of 62-303.720, F.A.C. and that have been approved
by order of the Secretary as no longer required to be on the Verified
Lists Adopted by Secretarial Order
The adopted lists below are the first step in the process of
restoring impaired waters. Once these waters have been accepted by
EPA, the Department staff will begin developing TMDLs for these waters.
A TMDL represents the maximum amount of pollutant loading that can be
discharged to a water body and have its designated uses be met.
The final step in this process will be the development, by watershed
stakeholders and DEP, 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 water body.
more information, send e-mail to
Kevin O'Donnell (Kevin.ODonnell@dep.state.fl.us)
2600 Blair Stone Road - Mail Station 3560
Tallahassee, FL, 32399-2400
Phone: (850) 245-8433