Watershed Assessment Section

2020-2022 Biennial Assessment Draft Study List and Study List Removals

The Watershed Assessment Section announces the 2020-2022 Biennial Assessment Draft assessment lists of waterbodies and water segments proposed for addition to the Study List and Study List Removals. The Draft assessment lists were developed pursuant to Chapter 62-303, Florida Administrative Code, and include all 29 basins in the state. In addition to the draft assessment lists in spreadsheet format, the department has published an interactive map titled "Biennial Assessment 2020-2022 D

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2020-2022 Biennial Assessment Draft Verified and Delist Lists

The Watershed Assessment Section announces the 2020-2022 Biennial Assessment Draft assessment lists of waterbodies and water segments proposed for addition to the Verified List and Delist List. The Draft assessment lists were developed pursuant to Chapter 62-303, Florida Administrative Code (F.A.C.), and include all 29 basins in the state. The Draft Verified Lists include those waters that have been determined to not meet water quality standards and are proposed as additions to the State's Verified List of Impaired Waters and the Clean Water Act (CWA) section 303(d) list.

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Impaired Waters Listing Process

The core function of the Watershed Assessment Section is to use the best available information to identify waterbodies and water segments (WBIDs) that are not meeting the applicable water quality standards and designated uses based on the Impaired Waters Rule, Chapter 62-303 and Florida's Surface Water Quality Standards, Chapter 62-302, Florida Administrative Code (F.A.C.).

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Statewide Biennial Assessment

Implementation of a Statewide Biennial Assessment
(February 18, 2021)

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FINAL Study Lists and Study List Removals for the Group 2 Basins

FINAL Study List and Study List Removals for the Group 2 Basins

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FINAL Verified and Delist Lists of Impaired Waters for the Group 2 Basins

The Department announces the availability of the FINAL lists of impaired waters for the Group 2 Basins: Apalachicola - Chipola, Charlotte Harbor, Lower St. Johns, Middle St. Johns, St. Lucie - Loxahatchee, and Tampa Bay Tributaries.

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FINAL Study Lists and Study List Removals for the Group 1 Basins

FINAL Study List and Study List Removals for the Group 1 Basins

Read more about FINAL Study Lists and Study List Removals for the Group 1 Basins

FINAL Verified and Delist Lists of Impaired Waters for the Group 1 Basins

The Department announces the availability of the FINAL lists of impaired waters for the Group 1 Basins: Everglades West Coast, Lake Okeechobee, Ocklawaha, Ochlockonee - St. Marks, Suwannee, and Tampa Bay.