Alternative Text Description for Adopted Minimum Flows and Levels (MFLs) in Florida

TABLE OF CONTENTS

MAP OVERVIEW

This map displays the locations of adopted Minimum Flows and Levels (MFLs) across Florida as of March 2021. MFLs are regulatory thresholds established by water management districts to protect water resources from significant harm. The map shows MFLs for various water body types including aquifers, springs, lakes, rivers, estuaries, and wetlands throughout the state. This information represents the regulatory framework for water resource protection across five Florida water management districts.

GEOGRAPHIC CONTEXT

The map covers the entire state of Florida, extending from the panhandle region near Tallahassee in the northwest to the southern tip near Miami and the Florida Keys. Major cities labeled on the map include Tallahassee, Jacksonville, Gainesville, Daytona Beach, Orlando, Tampa, St. Petersburg, Clearwater, Sarasota, Fort Myers, Cape Coral, Naples, West Palm Beach, Fort Lauderdale, and Miami. The map shows Florida's distinctive peninsula shape bordered by the Atlantic Ocean to the east and the Gulf of America to the west and south. Neighboring areas of Georgia and Alabama are visible in the northern portion of the map.

KEY INSIGHTS

Adopted MFLs show significant concentration in several distinct regions across Florida. The Tampa Bay area and surrounding central-west coast shows the highest density of MFL sites, particularly concentrated around Tampa, St. Petersburg, and Clearwater. A second major concentration appears along the central-east coast corridor from Daytona Beach south through the Orlando area and extending toward the Atlantic coast near Palm Coast. The southwest coast around Cape Coral, Fort Myers, and Naples shows substantial MFL adoption, particularly along the coastal areas and inland wetlands. Southern Florida from Lake Okeechobee southward through the Miami metropolitan area displays numerous MFL sites, many designated as wetlands. The northern and panhandle regions show sparser distribution of adopted MFLs. Spring-related MFLs appear clustered in north-central Florida, while aquifer MFLs are more dispersed across the peninsula.

VISUAL ELEMENTS

Adopted Minimum Flows and Levels

This layer represents water bodies and groundwater resources where regulatory minimum flow and level thresholds have been officially adopted by Florida's water management districts to prevent significant environmental harm.

Aquifer (tan/beige circles with black outlines)

Appearance: Tan or beige-colored circles with black outlines

Distribution: Scattered throughout the state with notable presence in the Tampa Bay area, southern Miami-Dade County, and coastal areas near Cape Coral and West Palm Beach

Notable locations: Multiple aquifer MFLs are located in the greater Tampa metropolitan area, along the southwest coast near Immokalee, and in the southernmost portion of the state near Homestead and the Miami area

Spatial patterns: Aquifer MFLs show relatively even distribution across urban and coastal regions, with slight clustering near major population centers

Estuary (light teal/cyan squares)

Appearance: Light teal or cyan-colored squares

Distribution: Located primarily in coastal and near-coastal areas, particularly concentrated in the Tampa Bay region, along the northern Gulf coast, and scattered along the southwest coast

Notable locations: Tampa Bay area shows multiple estuary MFLs; additional estuaries are visible near Tallahassee, along the Nature Coast (Homosassa area), near Port Charlotte, and in the Port St. Lucie area

Spatial patterns: Estuary MFLs follow coastal geography and are associated with major bay systems and tidal river mouths

Lake (medium blue circles with black outlines)

Appearance: Medium blue circles with black outlines, representing the most numerous category on the map

Distribution: Widely distributed throughout the Florida peninsula with heaviest concentrations in the central region around Gainesville, Orlando, and the Tampa Bay area, and along the southwest coast

Notable locations: Major clusters appear in the area between Gainesville and Ocala, throughout the greater Orlando region, dense concentration around Tampa and adjacent counties, significant presence along the coast from Sarasota to Cape Coral, and scattered throughout the interior and Everglades region

Spatial patterns: Lake MFLs show the broadest geographic distribution of any category, with particularly dense clustering in the central highlands and west-central regions where natural lake systems are abundant

River (solid teal/green circles)

Appearance: Solid teal or dark green circles, smaller and more distinct in color than lakes

Distribution: Distributed throughout the state with notable presence along the Gulf coast, in the southwest region, and in southern Florida

Notable locations: Concentrations appear in the Homosassa Springs area, along the southwest coast near Fort Myers and Naples, scattered through the Everglades and southern wetland regions, and in southeast Florida near Melbourne and Palm Bay

Spatial patterns: River MFLs tend to follow major drainage basins and are often found in clusters along specific river systems, particularly in southwest and southern Florida

River, Estuary (dark teal/green squares)

Appearance: Dark teal or green squares, indicating water bodies with both riverine and estuarine characteristics

Distribution: Relatively sparse category located primarily along the Gulf coast and in southwest Florida

Notable locations: Present near the Tampa Bay area, along the Nature Coast, near Sarasota, and in the Port Charlotte/Cape Coral region

Spatial patterns: This category represents transitional zones where rivers meet tidal influence, typically located near coastal areas

Spring-1 (solid dark blue circles)

Appearance: Solid dark blue circles, darker and more saturated than other blue symbols

Distribution: Concentrated in north-central Florida with some presence in the Tampa area

Notable locations: Clusters appear in the region between Tallahassee and Gainesville, with additional springs around the Ocala area and scattered presence near Tampa

Spatial patterns: Spring-1 MFLs align with Florida's spring regions, particularly where the Floridan Aquifer is close to the surface in the northern and central portions of the state

Spring-2 (light blue circles)

Appearance: Light blue circles, paler than Spring-1 or Spring-3 symbols

Distribution: Scattered in the northern part of the state and in the central region

Notable locations: Present in the Tallahassee area, near Gainesville, and in portions of the Tampa region

Spatial patterns: Similar geographic distribution to Spring-1 but fewer in number, representing a different classification of spring systems

Spring-3 (medium blue circles with black outlines, similar to but distinct from lakes)

Appearance: Medium blue circles with black outlines, visually similar to lake symbols but potentially with slight variation in shade

Distribution: Primarily located in north-central Florida and the Tampa Bay region

Notable locations: Concentrated between Gainesville and Ocala, with presence extending into the west-central region near Tampa

Spatial patterns: Spring-3 MFLs follow similar patterns to other spring categories, clustering in areas with significant groundwater discharge features

Wetland (lime green/yellow-green circles)

Appearance: Lime green or bright yellow-green circles, the most visually distinctive color on the map

Distribution: Concentrated heavily in southern Florida from Lake Okeechobee southward, with significant presence along the southwest coast and scattered occurrences in the Tampa area

Notable locations: Dense concentrations appear in the Everglades region, throughout Miami-Dade County, along the coast from Naples to Marco Island, in the Cape Coral and Fort Myers area, scattered around Tampa Bay, and along portions of the central-east coast

Spatial patterns: Wetland MFLs are predominantly located in South Florida where extensive wetland systems dominate the landscape, with secondary clusters along the Gulf coast where coastal marsh and mangrove systems occur

Overlapping Patterns

Several geographic areas show overlapping or closely spaced MFL sites of different types. The Tampa Bay metropolitan area demonstrates the greatest diversity, with aquifer, lake, spring, estuary, and wetland MFLs all present within a relatively concentrated area. The southwest coast from Sarasota to Naples shows mixing of river, wetland, lake, and estuary MFLs, reflecting the complex hydrology of this coastal region. Southern Florida displays overlapping patterns of wetland, aquifer, lake, and river MFLs, particularly in the transition zone between the Everglades and coastal urban areas. These overlapping patterns indicate areas where multiple water resource types require regulatory protection and where hydrological systems are interconnected.

SYMBOL GUIDE

ADDITIONAL INFORMATION

This map represents the culmination of regulatory work by five Florida water management districts: Northwest Florida Water Management District (NWFWMD), Suwannee River Water Management District (SRWMD), St. Johns River Water Management District (SJRWMD), Southwest Florida Water Management District (SWFWMD), and South Florida Water Management District (SFWMD). The different spring classifications (Spring-1, Spring-2, Spring-3) likely represent different magnitude categories or regulatory classifications of spring systems. The map shows only adopted MFLs as of March 2021; additional MFLs may have been under development or consideration at that time but are not displayed. The concentration of MFLs in certain regions reflects both the presence of critical water resources and the level of regulatory activity by water management districts in those areas. Areas without visible MFL symbols may contain water resources that have not yet had MFLs adopted or may fall under different regulatory frameworks.

DATA CONTEXT

Data Source: The data was compiled by the Florida Department of Environmental Protection's Office of Water Policy from information provided by each of Florida's five water management districts. The compilation represents all statewide adopted minimum flows and levels as of March 2021. Each feature includes attributes with detailed information about the specific MFL. For technical issues or updates, contact pamela.flores@floridadep.gov. Data source layer name: MFL_ADOPTED_MAR25.

Definition Query: No definition query or filter criteria was applied; the map displays all adopted MFLs in the source dataset.

Scale Information: The map is displayed at a statewide scale showing all of Florida, appropriate for understanding the overall distribution and density of adopted MFLs across the state. At this scale, individual site details are not visible, but regional patterns and concentrations are clearly apparent.

Coordinate System: NAD_1983_HARN_Florida_GDL_Albers (WKID 3087), a projected coordinate system optimized for Florida statewide mapping.

Time Period of Content: Data represents adopted MFLs as of March 2021. This is a snapshot in time; additional MFLs may have been adopted since this date.

Limitations: The dataset only includes MFLs that have been formally adopted through the regulatory process as of March 2021. Water bodies without MFL symbols may still be regulated under other programs or may have MFLs under development. The map does not show proposed or pending MFLs, only those that have completed the adoption process. The data reflects the regulatory priorities and schedules of individual water management districts, which may vary across the state.

Map Coverage: The map covers the entire state of Florida from the panhandle to the southern tip, including the Keys. Small portions of neighboring Georgia and Alabama are visible in the northern extent for geographic context.

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