Impaired Waters

As part of DEP’s watershed management approach, all of the basins in Florida are assessed every two years under the Identification of Impaired Surface Waters (Chapter 62-303, Florida Administrative Code). This coverage is a compilation of the Biennial Assessment 2022-2024 (BA) (referenced as Cycle 6) and includes any WBID/parameter combination that did not attain standards (assessment categories 4a, 4b, 4e, & 5). If a WBID (waterbody) does not attain standards for multiple parameters, overlapping polygons are created to represent each parameter. The WBIDs and assessment for this dataset exclude Mercury (in fish tissue) that are addressed through a statewide TMDL. For more information or questions regarding the impaired waters, please contact Kevin O'Donnell ([e-mail]) or for questions specific to this layer, please contact Phil Homann ([e-mail]) or Jessica Mostyn ([e-mail]).