Alternative Text Description for Adopted Total Maximum Daily Loads (TMDLs) in Florida

TABLE OF CONTENTS

MAP OVERVIEW

This map displays the locations of Adopted Total Maximum Daily Loads (TMDLs) across the State of Florida. TMDLs represent scientific determinations of the maximum amount of specific pollutants that surface waters can absorb while still meeting water quality standards that protect human health and aquatic life. The map shows the geographic distribution of water bodies identified as impaired for various pollutants including nutrients, bacteria, mercury, and other contaminants, where TMDLs have been adopted to guide pollution reduction and water quality restoration efforts.

GEOGRAPHIC CONTEXT

The map covers the entire State of Florida and portions of neighboring states including southern Georgia and Alabama. Major cities labeled on the map include Jacksonville, Tallahassee, Gainesville, Orlando, Tampa, St. Petersburg, Palm Bay, West Palm Beach, Fort Lauderdale, Miami, Cape Coral, and Pensacola along the western panhandle. The map extends from Montgomery and Columbus in the north to the Florida Keys in the south. The Atlantic Ocean coastline is visible along the entire eastern edge, and the Gulf of America is shown along the western and southern coasts. The map includes inland areas and coastal waters throughout Florida's geography.

KEY INSIGHTS

Adopted TMDLs show a widespread but uneven distribution across Florida, with notable concentrations in several distinct regions. The highest density of TMDL sites appears in the northern and north-central portions of the state, particularly around the Tallahassee and Gainesville areas, suggesting significant water quality impairment issues in these regions. Substantial TMDL coverage is also visible in the greater Jacksonville metropolitan area along the northeast coast. The central Florida region around Orlando and the Tampa Bay metropolitan area shows moderate to high concentrations of adopted TMDLs. Southern Florida, including the greater Miami-Fort Lauderdale area and the southwestern coastal region near Cape Coral and Fort Myers, displays considerable TMDL activity. The Florida Panhandle shows scattered TMDL sites, particularly near Pensacola. The distribution pattern suggests that both urbanized areas and regions with intensive agricultural or industrial activity have higher concentrations of water bodies requiring pollution load limits.

VISUAL ELEMENTS

Adopted Total Maximum Daily Loads (TMDLs)

This layer represents water bodies throughout Florida where TMDLs have been officially adopted to address water quality impairments.

TMDL Water Bodies (bright blue polygons)

Appearance:

Features are displayed as bright blue (cyan) polygons of varying sizes and shapes against a light gray base map background.

Distribution:

TMDL sites are distributed throughout the state with varying density, appearing as irregular polygon shapes representing impaired water segments. These features are present in both inland and coastal locations.

Notable locations:

Major concentrations appear in north-central Florida around Tallahassee and Gainesville, the Jacksonville metropolitan area, the Orlando region in central Florida, the Tampa Bay area on the west coast, the southeastern coastal region including the Palm Beach and Fort Lauderdale areas, southwestern Florida near Cape Coral and Fort Myers, and the southernmost tip of the Florida peninsula. Additional scattered sites appear throughout the Panhandle region near Pensacola.

Spatial patterns:

TMDLs show clustering patterns around major population centers and water-rich areas. The features often appear as interconnected networks of polygons, suggesting that multiple adjacent water segments within watersheds or water body systems are impaired. Coastal areas display both nearshore marine and estuarine TMDL sites, while inland regions show TMDL sites associated with lakes, rivers, and other freshwater systems. The spatial pattern indicates that water quality impairment requiring TMDL adoption is most prevalent in areas with higher development intensity, agricultural activity, or complex hydrological systems.

Overlapping Patterns

Multiple TMDL polygons frequently appear in close proximity or as connected systems, indicating that water quality impairment often affects entire watershed networks rather than isolated water bodies. This pattern is particularly evident in north-central Florida and around major metropolitan areas.

SYMBOL GUIDE

ADDITIONAL INFORMATION

This map shows only those TMDLs that have been officially adopted, representing water bodies where pollution reduction plans have been formalized. TMDLs may address various types of pollutants including dissolved oxygen, nutrients, bacteria (fecal coliform), and other pollutants such as metals and turbidity. Each polygon represents a unique Water Body Identification (WBID) number assigned by the Florida Department of Environmental Protection for water quality assessment purposes. The map does not distinguish between different types of pollutant impairments or show TMDLs that are still in the planning or draft stages. The presence of an adopted TMDL indicates that a water body has been identified as impaired and that regulatory limits have been established to reduce pollutant loading and restore designated uses.

DATA CONTEXT

Data Source:

The data represents Adopted Total Maximum Daily Loads (TMDLs) in the State of Florida maintained by the Florida Department of Environmental Protection. TMDLs are developed for water bodies that do not meet water quality standards as set forth in rules 62-302 and 62-303 of the Florida Administrative Code. Data source layer name: ADOPTED_TMDLS_NOV25.

Definition Query:

The information provided does not indicate that a specific definition query or filter criteria was applied to subset the data. The map appears to display all adopted TMDLs in the state.

Scale Information:

The map shows a statewide view of Florida at a scale appropriate for understanding regional distribution patterns of adopted TMDLs. Individual TMDL polygons representing specific water body segments are visible at this scale.

Coordinate System:

NAD 1983 HARN Florida GDL Albers (WKID 3087).

Time Period of Content:

The data is current as of November 25, based on the data source layer name. The specific year is not provided in the available information.

Limitations:

This map shows only State Adopted TMDLs and State Adopted and EPA Approved TMDLs, not TMDLs that are still in the planning phase or draft status. The map does not differentiate between TMDLs addressing different pollutant types (dissolved oxygen/nutrients, bacteria, or other pollutants) or between TMDLs that have been EPA-approved versus those adopted by the state but pending federal approval. Water bodies without visible TMDL polygons may still have water quality concerns but have not yet had TMDLs adopted, or may meet water quality standards.

Map Coverage:

The map covers the entire State of Florida and includes portions of neighboring states (southern Georgia and Alabama) for geographic context. Coverage extends from the western Panhandle near Pensacola eastward to Jacksonville and southward through the entire peninsula to the Florida Keys and Miami area, including both inland waters and coastal/marine environments.

The alternative text description of this map was AI-generated and may contain inaccuracies.