FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

Division of Environmental Assessment and Restoration

Water Quality Assessment Report

SOUTH DISTRICT • GROUP 5 BASIN • 2008

Florida Keys

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

Division of Environmental Assessment and Restoration

Water Quality Assessment Report

2008

Florida Keys

Acknowledgments

The Florida Keys Water Quality Assessment Report was prepared by 

the Florida Keys Basin Team, Florida Department of Environmental 

Protection, as part of a five-year cycle to restore and protect Florida’s water 

quality. Team members include the following:

Pat Fricano, Basin Coordinator

Nathan Bailey, Ph.D., Assessment Coordinator

Richard Hicks, P.G., Ground Water Coordinator

Alan Punshon, Monitoring Coordinator

Gordon Romeis, South District

Gus Rios, South District–Marathon

Kristina Laskis, Watershed Assessment Section

Kevin O’Donnell, Watershed Assessment Section

Terry Frohm, STORET

Christy Newsome, GIS

Janet Klemm, Water Quality Standards and OFWs

George Garrett, Monroe County (formerly)

Editorial and writing assistance provided by

Linda Lord, Watershed Planning and Coordination

Production assistance provided by

Center for Advancement of Learning and Assessment

Florida State University

210-B Sliger Building

2035 E. Paul Dirac Drive

Tallahassee, FL 32310

Map production assistance provided by

Florida Resources and Environmental Analysis Center

Florida State University

University Center, C2200

Tallahassee, FL 32306-2641

For additional information on the watershed management 

approach and impaired waters in the Florida Keys Basin, contact

Pat Fricano

Florida Department of Environmental Protection

Bureau of Watershed Restoration, Watershed Planning and 

 Coordination Section

2600 Blair Stone Road, Mail Station 3565

Tallahassee, FL 32399-2400

pat.fricano@dep.state.fl.us

Phone: (850) 245-8559; SunCom: 205-8559

Fax: (850) 245-8434

Water Quality Assessment Report: Florida Keys 5
Access to all data used in the development of this report can be 

obtained by contacting

Nathan Bailey, Ph.D.

Florida Department of Environmental Protection

Bureau of Watershed Restoration, Watershed Assessment Section

2600 Blair Stone Road, Mail Station 3555

Tallahassee, FL 32399-2400

nathaniel.bailey@dep.state.fl.us

Phone: (850) 245-8465; SunCom: 205-8465

Fax: (850) 245-8536

Web Sites

Florida Department of Environmental Protection, Bureau of 

Watershed Management

TMDL Program

http://www.dep.state.fl.us/water/tmdl/index.htm

Identification of Impaired Surface Waters Rule

http://www.dep.state.fl.us/legal/Rules/shared/62-303/62-303.pdf

STORET Program

http://www.dep.state.fl.us/water/storet/index.htm

2006 305(b) Report

http://www.dep.state.fl.us/water/tmdl/docs/

2006_Integrated_Report.pdf

Criteria for Surface Water Quality Classifications

http://www.dep.state.fl.us/water/wqssp/classes.htm

Status/Assessment Reports

http://www.dep.state.fl.us/water/tmdl/stat_rep.htm

U.S. Environmental Protection Agency

Region 4: Total Maximum Daily Loads in Florida

http://www.epa.gov/region4/water/tmdl/florida/

National STORET Program

http://www.epa.gov/storet/

6 Water Quality Assessment Report: Florida Keys
Preface

Content Features

• Executive Summary: Appears at the beginning of every report and 

provides an overview of the watershed management, its implementation, and how this approach will be used to identify impaired waters.

• Sidebar: Appears throughout the report and provides additional 

information pertinent to the text on that page.

• Noteworthy: Appears on pages near text that needs additional 

information but is too lengthy to fi t in a sidebar.

• Defi nitions: Appear where scientifi c terms occur that may not 

be familiar to all readers. The word being defi ned is bold-faced in 

the text.

• References: Appear immediately before the Appendices and provide 

a complete listing of all sources used in the text.

• Appendices: Appear at the end of the report and provide additional 

information on a range of subjects such as bioassessment methodology, rainfall and stream fl ow, types of natural communities, 

STORET stations, water quality statistics, land use, and permitted 

facilities.

Water Quality Assessment Report: Florida Keys 7

Executive Summary

Florida Keys

The Water Quality Assessment Report for the Florida Keys Basin is 

part of the implementation of the Florida Department of Environmental 

Protection’s (Department’s) watershed management approach for restoring and protecting water resources and addressing Total Maximum Daily 

Load (TMDL) Program requirements. A TMDL represents the maximum amount of a given pollutant that a waterbody can assimilate and still 

meet the waterbody’s designated uses. A waterbody that does not meet its 

designated uses is defi ned as impaired. The watershed approach, which is 

implemented using a cyclical management process, provides a framework 

for implementing the requirements of the 1972 federal Clean Water Act 

and the 1999 Florida Watershed Restoration Act (Chapter 99-223, Laws 

of Florida).

A Status Report, published during Phase 1 of the watershed management cycle, provided a Planning List, or preliminary identifi cation, 

of potentially impaired waterbodies in the Florida Keys Basin. This 

Assessment Report presents the results of additional data gathered during 

Phase 2 of the cycle. The report contains a Verifi ed List of impaired waters 

(Table 4.3 in Chapter 4) that has been adopted by Secretarial Order and 

approved by the U.S. Environmental Protection Agency. TMDLs must 

be developed and implemented for these waters, unless the impairment is 

documented to be a naturally occurring condition that cannot be abated 

by a TMDL, or unless a management plan already in place is expected to 

correct the problem. The Verifi ed List also constitutes the Group 5 basinspecifi c 303(d) list of impaired waters, so called because it is required under 

Section 303(d) of the Clean Water Act. In addition, the report provides the 

results of a preliminary ground water quality assessment and discusses priorities for further evaluation, resource priorities, and proposed actions. (See 

Noteworthy in Chapter 1 for a description of the contents of this report, 

by chapter.)

In the Florida Keys Basin, state, federal, regional, and local agencies 

and organizations are making progress toward identifying problems and 

improving water quality. Through its watershed management activities, 

the Department works with these entities to support programs that are 

improving water quality and restoring and protecting ecological resources. 

The Department’s TMDL Program objectives will be carried out in the 

basin through close coordination with key stakeholders such as the Florida 

Keys National Marine Sanctuary; Monroe County; the cities of Key West, 

 Marathon, and Key Colony Beach; the South Florida Water Management District (SFWMD); the Florida Fish and Wildlife Conservation 

 Commission; and many others.

Not only do stakeholders in the basin share responsibilities in achieving water quality improvement objectives, they also play a crucial role 

in providing the Department with important monitoring data and 

Water Quality Assessment Report: Florida Keys 9
 information on management activities. Signifi cant data providers in the 

basin, in addition to the Department, include the Florida Department of 

Health, Florida Fish and Wildlife Research Institute, SFWMD, and U.S. 

 Geological Survey.

Summary of Findings

The Department’s assessment shows that 55 waterbodies or waterbody 

segments in the Florida Keys Basin are impaired and a portion of them will 

require the development of TMDLs. Reasonable assurance documentation 

will be provided for the remaining impairments not scheduled for TMDL 

development. The following summarizes, by planning unit, impairments 

by waterbody types and the primary pollutants. Planning units are smaller 

areas in the basin that provide a more detailed geographic basis for identifying and assessing water quality improvement activities.

Upper Keys Planning Unit

Of the 23 waterbody segments in the Upper Keys Planning Unit, 

17 segments have suffi cient data for assessment. Of these, 16 are verifi ed 

impaired for at least 1 parameter assessed, 5 remain on the Planning List, 

and 1 meets standards.

The 16 verifi ed impaired segments in the planning unit, and the 

parameters of impairment, are as follows:

WBID* Water Segment Name Parameters of Impairment

6009 Plantation Key Nutrients (Other), Mercury in Fish, 

Copper

6017 Upper Matecumbe Key Nutrients (Other), Mercury in Fish

6019 Lower Matecumbe Key Nutrients (Other), Mercury in Fish, 

Copper

8078 Florida Bay Gulf 2 Mercury in Fish

8084 Lower Matecumbe Key Ocean Mercury in Fish

8085 Plantation Key Ocean Mercury in Fish

8086 Rodriguez Key Ocean Mercury in Fish

8087 Key Largo Ocean 1 Mercury in Fish

6005EB John Pennekamp State Park Bacteria (Beach Advisories)

6006A South Key Largo Nutrients (Other), Mercury in Fish, 

Copper

6006B Middle Key Largo Nutrients (Other), Mercury in Fish

6006C North Key Largo Nutrients (Other), Mercury in Fish, 

Copper

6006Z Pumpkin Key Nutrients (Other)

8078A Harry Harris County Park Bacteria (Beach Advisories)

8078B Islamorada Library Beach Bacteria (Beach Advisories)

8078C Founder Bacteria (Beach Advisories)

*WBID = Waterbody identification number

10 Water Quality Assessment Report: Florida Keys
Other potential impairments in the planning unit include the Florida 

Keys embayments, which were identifi ed as potentially impaired for 

nutrients based on “other information” indicating an imbalance in fl ora 

or fauna, pursuant to Rule 62-303.450(2), Florida Administrative Code. 

Further investigation is required. 

WBID Water Segment Name Potential Impairments

6002 Manatee Bay Nutrients (Other)

6003 Barnes Sound Nutrients (Other)

6005 Long Sound Nutrients (Other)

6005A Little Blackwater Sound Nutrients (Other)

6005B Blackwater Sound Nutrients (Other)

Middle Keys Planning Unit

Of the 15 waterbody segments in the Middle Keys Planning Unit, 

15 segments have suffi cient data for assessment. Of these, 13 are verifi ed 

impaired for at least 1 parameter assessed, none remain on the Planning 

List, and 2 meet standards.

The 13 verifi ed impaired segments in the planning unit, and the 

parameters of impairment, are as follows:

WBID Water Segment Name Parameters of Impairment

6010 Long Key Nutrients (Other), Mercury in Fish

6016 Duck Key Nutrients (Other), Mercury in Fish

8071 Florida Keys Gulf Mercury in Fish

8076 Florida Keys Gulf 3 Mercury in Fish

8077 Florida Bay Gulf 1 Mercury in Fish

8081 Boat Key Ocean Mercury in Fish

8082 Grassy Key Ocean Mercury in Fish

8083 Long Key Ocean Mercury in Fish

6011A Vaca Key Nutrients (Other), Mercury in Fish, 

Copper

6011B Key Colony Nutrients (Other)

6011C Grassy Key Nutrients (Other), Mercury in Fish

8076A Veteran’s Beach Bacteria (Beach Advisories)

8081A Coco Plum Beach Bacteria (Beach Advisories)

Lower Keys Planning Unit

Of the 29 waterbody segments in the Lower Keys Planning Unit, 

27 segments have suffi cient data for assessment. Of these, 26 are verifi ed 

impaired for at least 1 parameter assessed, none remain on the Planning 

List, and 1 meets standards.

Water Quality Assessment Report: Florida Keys 11
The 26 verifi ed impaired segments in the planning unit, and the 

parameters of impairment, are as follows:

WBID Water Segment Name Parameters of Impairment

6018 Bahia Honda State Park Nutrients (Other), Mercury in Fish

8072 Dry Tortugas Gulf Mercury in Fish

8073 Key West Gulf Mercury in Fish, Fecal Coliforms

8074 Florida Keys Gulf 1 Mercury in Fish

8075 Florida Keys Gulf 2 Mercury in Fish

8079 U.S. Naval Air Station Key 

West Ocean

Mercury in Fish

8080 Newfound Harbor

Keys Ocean

Mercury in Fish

6012A Big Pine Key Nutrients (Other), Mercury in Fish, 

Copper

6012B Bahia Honda Bayside Nutrients (Other)

6012C No Name Key Nutrients (Other), Mercury in Fish

6012D Long Beach Nutrients (Other), Mercury in Fish

6012E Big Torch Key Mercury in Fish

6013A Saddlebunch Keys Nutrients (Other), Mercury in Fish

6013B Sugarloaf Nutrients (Other), Mercury in Fish

6013C Cudjoe Key Nutrients (Other), Mercury in Fish, 

Copper

6013D Little Knockemdown Key Nutrients (Other), Mercury in Fish

6014A Key West Nutrients (Other), Mercury in Fish, 

Fecal Coliforms, Copper

6014B Stock Island Nutrients (Other), Mercury in Fish, 

Copper

6014C U.S. Naval Air Station 

Key West

Nutrients (Other), Mercury in Fish

8073C Simonton Street 

Beach (KW)

Bacteria (Beach Advisories)

8073E South Beach (KW) Bacteria (Beach Advisories)

8073F Higgs Beach Bacteria (Beach Advisories)

8073G Rest Beach (KW) Bacteria (Beach Advisories)

8073H Smathers Beach Bacteria (Beach Advisories)

8080A Bahia Honda Sandspur Bacteria (Beach Advisories)

8080B Bahia Honda Oceanside Bacteria (Beach Advisories)

12 Water Quality Assessment Report: Florida Keys
Total Maximum Daily Load Priority Areas

No high-priority areas were designated for TMDL development in the 

Florida Keys Basin. Section 62-303.500, Florida Administrative Code, 

defi nes high-priority waters as waterbody segments where the impairment 

poses a threat to potable water supplies or human health; waterbody segments where the impairment is due to a pollutant regulated by the Clean 

Water Act and the pollutant has contributed to the decline or extirpation of a federally listed threatened or endangered species, as indicated in 

the Federal Register listing the species; or waterbody segments verifi ed as 

impaired that are included on the EPA’s 1998 303(d) list as high priority.

Summary of Ground Water Findings

Ground water in the Florida Keys is hypersaline to brackish and does 

not provide a reliable source of potable water, although in the early days of 

European settlement, thin lenses of fresh water were tapped by very shallow 

wells to provide water. Instead of being a source of water for potable supply, 

the highly porous and permeable Key Largo Limestone has for many years 

been used to absorb domestic wastewater disposed of in septic tanks, cesspits, and injection wells. In recent years, this practice has led to concern 

over the human health and ecological impacts of submarine ground water 

discharge. Numerous studies have been conducted to demonstrate the connection between waste injection points and surface waters.

Research activities of the Florida Keys Water Quality Protection Program have demonstrated that ground water in the Florida Keys migrates 

 laterally from points of wastewater disposal to shallow ground water 

beneath nearshore and offshore surface waters, and discharges to surface 

water via submarine springs and excavated canal walls. It also has been 

demonstrated that both nutrients and bacteria associated with waste water 

from septic tanks, cesspits, and injection wells are present in shallow ground 

water onshore. Nutrients (primarily nitrogen) and fecal bacteria have been 

traced as they migrate laterally to nearshore and offshore ground waters and 

to nearshore surface waters. Most of the research work was performed in 

the Upper and Lower Keys, with less performed in the Middle Keys.

Water Quality Assessment Report: Florida Keys 13

Table of Contents

Chapter 1: Introduction ........................................................................19

Purposes and Content of the Assessment Report ............................................. 19

Stakeholder Involvement .....................................................................................20

The Watershed Management Cycle in the Florida Department of 

Environmental Protection’s South District ..........................................................22

Chapter 2: Basin Overview .................................................................. 25

Basin Setting ........................................................................................................25

Population ...................................................................................................................... 25

Land Use ........................................................................................................................ 25

Economic Activity .......................................................................................................... 26

Surface Water Resources ....................................................................................28

Surface Water Quality Classifications .......................................................................... 29

Special Designations ..................................................................................................... 31

Outstanding Florida Waters ....................................................................................................31

Ground Water Resources .....................................................................................32

Ground Water Occurrence ............................................................................................ 32

Ground Water Usage ..................................................................................................... 32

Ground Water–Surface Water Interactions ..................................................................33

Watershed Management Activities and Processes ............................................33

Historical Issues and Activities .....................................................................................33

Ongoing Programs and Projects ...................................................................................34

Florida Keys Area of Critical State Concern .............................................................................34

Florida Keys National Marine Sanctuary .................................................................................39

Florida Keys Water Quality Protection Program ......................................................................40

Florida Keys Water Quality Improvements Program ................................................................41

Monroe County Sanitary Wastewater Master Plan ................................................................41

Monroe County Stormwater Management Master Plan ........................................................ 43

City of Key West Sewage and Stormwater Management Systems ........................................45

Agricultural Best Management Practices ................................................................................46

Chapter 3: Surface Water Quality Assessment .................................. 49

Scope of the Assessment ....................................................................................49

Update on Strategic Monitoring and Data-Gathering Activities During 

Phase 2 ..................................................................................................................50

Sources of Data ....................................................................................................50

Attainment of Designated Use ............................................................................52

Integrated Report Categories and Assessment Overview .................................53

Planning Units ......................................................................................................55

Assessment by Planning Unit..............................................................................56

Upper Keys Planning Unit .............................................................................................. 56

General Description ................................................................................................................56

Water Quality Summary .........................................................................................................58

Permitted Discharges and Land Uses .....................................................................................58

Ecological Summary ...............................................................................................................62

Water Quality Improvement Plans and Projects ......................................................................64

Middle Keys Planning Unit .............................................................................................64

General Description ................................................................................................................64

Water Quality Summary .........................................................................................................65

Permitted Discharges and Land Uses .....................................................................................65

Ecological Summary ...............................................................................................................69

Water Quality Improvement Plans and Projects ......................................................................69

Water Quality Assessment Report: Florida Keys 15
Lower Keys Planning Unit .............................................................................................. 70

General Description ................................................................................................................70

Water Quality Summary .........................................................................................................71

Permitted Discharges and Land Uses .....................................................................................71

Ecological Summary ...............................................................................................................75

Water Quality Improvement Plans and Projects ......................................................................76

Chapter 4: The Verified List of Impaired Waters ................................ 79

Public Participation ..............................................................................................79

Identification of Impaired Waters ........................................................................79

Documentation of Reasonable Assurance .........................................................80

The Verified List of Impaired Waters ...................................................................82

Pollutants Causing Impairments ................................................................................... 82

Dissolved Oxygen Impairments in Florida Keys ........................................................... 82

Listing Based on Other Information Indicating Nutrient Imbalance ............................88

Pollutants Causing Potential Impairments ....................................................................88

Adoption Process for the Verified List of Impaired Waters .........................................89

Chapter 5: TMDL Development, Allocation, and Implementation .......91

Prioritization of Listed Waters .............................................................................. 91

Total Maximum Daily Load Development ...........................................................92

Total Maximum Daily Load Allocation and Implementation .............................93

Initial Allocation of Pollutant Loadings .......................................................................... 93

Implementation Programs and Approaches ................................................................94

Development of Basin Management Action Plans.............................................95

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Tables

Table 1.1: Stakeholder Involvement in the TMDL Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 2.1: Population Growth in the Florida Keys Region, by County, 1990–2020 . . . . . . . . . . . . . . . 26

Table 2.2: Level I 2004–2005 Land Use in the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 2.3: Historical Issues and Activities in the South Florida Region and Florida Keys Basin . . . . . 35

Table 3.1: Summary of Data Providers in the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 3.2: Designated Use Attainment Categories for Surface Waters in Florida . . . . . . . . . . . . . . . 53

Table 3.3: Categories for Waterbodies or Waterbody Segments in the 2002 Integrated Report . . . . 54

Table 3.4: Planning Units in the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 3.5: Integrated Water Quality Assessment Summary for the Upper Keys Planning Unit . . . . . . 60

Table 3.6: Integrated Water Quality Assessment Summary for the Middle Keys Planning Unit . . . . . 67

Table 3.7: Integrated Water Quality Assessment Summary for the Lower Keys Planning Unit . . . . . . 73

Table 4.1: Schedule for Development and Adoption of the Group 5 Verifi ed Lists . . . . . . . . . . . . . . . 80

Table 4.2: Elements of Reasonable Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Table 4.3: The Draft Verifi ed List of Impaired Waters for the Florida Keys Basin . . . . . . . . . . . . . . . . 83

Table 4.4: Parameters Causing Potential Impairments in the Florida Keys Basin . . . . . . . . . . . . . . . 88

16 Water Quality Assessment Report: Florida Keys
Figures

Figure 1.1: Schedule for Implementing the Watershed Management Cycle in the Department’s 

South District, Basin Groups 1 through 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 2.1: Geopolitical Map of the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 2.2: Surface Water Resources of the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 3.1: Sources of Data for the Florida Keys Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 3.2: Locations and Boundaries of Planning Units in the Florida Keys Basin . . . . . . . . . . . . . . . 57

Figure 3.3: Composite Map of the Upper Keys Planning Unit, Including the 1998 303(d) List, 

Planning List and Verifi ed List Waters, and Potential Pollution Sources . . . . . . . . . . . . . . 59

Figure 3.4: Composite Map of the Middle Keys Planning Unit, Including the 1998 303(d) List, 

Planning List and Verifi ed List Waters, and Potential Pollution Sources . . . . . . . . . . . . . . 66

Figure 3.5: Composite Map of the Lower Keys Planning Unit, Including the 1998 303(d) List, 

Planning List and Verifi ed List Waters, and Potential Pollution Sources . . . . . . . . . . . . . . 72

Figure 4.1: Waters on the Verifi ed List, with Projected Year for TMDL Development . . . . . . . . . . . . . 87

Water Quality Assessment Report: Florida Keys 17

Chapter 1: Introduction

Total Maximum 

Daily Load

The maximum amount 

of a given pollutant that a 

waterbody can assimilate 

and remain healthy, such that 

all of its designated uses are 

met.

Purposes and Content of the Assessment 

Report

The Florida Department of Environmental Protection (Department) 

is implementing a statewide watershed management approach for restoring 

and protecting water quality and addressing Total Maximum Daily Load 

(TMDL) Program requirements. Under Section 303(d) of the 1972 federal 

Clean Water Act and the 1999 Florida Watershed Restoration Act (FWRA) 

(Chapter 99-223, Laws of Florida), TMDLs must be developed for all 

waters that do not meet their designated uses (such as drinking water, recreation, and shellfi sh harvesting) and are thus defi ned as impaired. 

TMDLs will be developed, and the corresponding reductions in pollutant loads allocated, as part of the watershed management approach, which 

rotates through the state’s 52 river basins over a 5-year cycle. Extensive 

public participation from diverse stakeholders in each of these basins is 

crucial in all phases of the cycle.

A Status Report published during Phase 1 of the watershed management cycle provided a Planning List, or preliminary identifi cation, of potentially impaired waterbodies in the Florida Keys Basin. A copy of the report 

can be found at http://www.dep.state.fl .us/water/tmdl/stat_rep.htm.

This Assessment Report, which updates the information in the Status 

Report, incorporates data collected from the Department’s strategic monitoring and gathered from other agencies and groups during Phase 2 of the 

watershed cycle. The report contains a Verifi ed List of impaired waters 

required by the FWRA and Section 303(d) of the federal Clean Water Act, 

for which TMDLs must be developed and implemented. It also describes 

the results of a preliminary ground water quality assessment and discusses 

priorities for further evaluation, as well as resource priorities and proposed actions. (See Noteworthy for a description of the contents of the 

 Assessment Report, by chapter.)

Based on the assessment results, 55 waterbodies or waterbody segments 

in the Florida Keys Basin are verifi ed impaired for 1 or more parameters. 

TMDLs must be developed for these waters, unless the impairment is documented to be a naturally occurring condition that a TMDL cannot abate, 

or unless a management plan is already in place to correct the problem.

This report is intended for distribution to a broad range of potential 

stakeholders, including decision makers in federal, state, regional, and local 

governments; public and private interests; and citizens.

The Verifi ed List is required by Subsection 403.067(4), Florida 

 Statutes, and Section 303(d) of the federal Clean Water Act. The Department has adopted the Verifi ed List of impaired waters in accordance 

with the FWRA and the Identifi cation of Impaired Surface Waters 

Water Quality Assessment Report: Florida Keys 19
Rule (Rule 62-303, Florida Administrative Code). The U.S. Environmental Protection Agency (EPA) has also approved this list as the current 

303(d) list of impaired waters for the basin, so called because it is required 

under Section 303(d) of the Clean Water Act. 

The fi rst 303(d) list, which was required by the EPA in 1998, is to 

be amended annually to include basin updates. Florida’s 1998 303(d) list 

included a number of waterbodies in the Florida Keys Basin.

This Assessment Report follows the EPA’s guidance for meshing 

Clean Water Act requirements for Section 305(b) water quality reports 

and Section 303(d) lists of impaired waters. The integrated water quality 

assessment is used to identify the status of data suffi ciency, the potential 

for impairment, and the need for TMDL development for each waterbody or waterbody segment in the basin. Tables 3.5 through 3.7 in 

Chapter 3 provide an integrated assessment for the Florida Keys Basin, by 

 planning unit.

Appendix A describes the legislative and regulatory background for 

TMDL development and implementation through the watershed management approach, and briefl y explains the TMDL Program. Background 

information on the Department’s TMDL Program, the process of TMDL 

development and implementation, lists of impaired and potentially 

impaired waters, and assessments for other parts of the state are available at 

http://www.dep.state.fl .us/water/tmdl/index.htm.

Stakeholder Involvement

The FWRA requires the Department to work closely with stakeholders to develop and implement TMDLs. Stakeholder involvement in 

the TMDL process will vary with each phase of implementation to achieve 

different purposes (Table 1.1). 

The Department will work cooperatively with a number of key stakeholders to develop, allocate, and implement TMDLs in the Florida Keys 

Basin. These include the following:

• City of Key Colony Beach

• City of Key West

• City of Marathon

• City of Layton

• Earthjustice

• Florida Audubon Society

• Florida Department of Community Affairs

• Florida Department of Environmental Protection, Division of 

State Parks 

• Florida Department of Environmental Protection, Offi ce of Coastal 

and Aquatic Managed Areas

20 Water Quality Assessment Report: Florida Keys
Watershed Management Cycle Nature of Stakeholder Involvement

Phase 1: 

Preliminary

Evaluation

Close coordination with local stakeholders to conduct a preliminary basin water 

quality assessment, inventory existing and proposed management activities, 

identify management objectives and issues of concern, develop a Strategic 

Monitoring Plan, and produce a preliminary Status Report that includes a Planning List of potentially impaired waters

Phase 2:

Strategic Monitoring

and Assessment

Cooperative efforts between the Department and local stakeholders to collect additional data; enter data into STORET (the EPA’s national water quality 

STOrage and RETrieval database); complete the water quality assessment; produce a final Assessment Report that includes a Verified List of impaired waters 

for Secretarial adoption; and provide an opportunity for stakeholders to document reasonable assurance (for Department review) that existing or proposed 

management plans and projects are adequate to restore water quality without 

the establishment of a TMDL

Phase 3:

Development and

Adoption of TMDLs

Coordination with stakeholders to discuss TMDL model framework, including 

model requirements, parameters to be modeled, model endpoints, design run 

scenarios, and preliminary allocations; communication of science used in the 

process; public workshops for rule adoption of TMDLs

Phase 4:

Development of Basin 

Management Action Plan 

Broad stakeholder participation in developing a Basin Management Action Plan 

(B-MAP) (including detailed allocations and implementation strategies), incorporating it into existing management plans where feasible; public meetings 

during the planning process

Phase 5:

Implementation of Basin 

Management Action Plan

Emphasis on implementing the B-MAP, other voluntary stakeholder actions, 

and local watershed management structures; Department will continue to 

provide technical assistance, fulfill oversight responsibilities, and administer 

National Pollutant Discharge Elimination System point and nonpoint source 

permits

Table 1.1: Stakeholder Involvement in the TMDL Program

• Florida Department of Environmental Protection, South District

• Florida Department of Health

• Florida Department of Health, Bureau of Onsite Sewage Programs

• Florida Department of Transportation

• Florida Fish and Wildlife Conservation Commission, Fish and 

 Wildlife Research Institute

• Florida International University, South Florida Ecosystem 

 Restoration Task Force

• Florida Keys Aqueduct Authority

• Florida Keys Conservancy—Keys Watch

• Florida Keys Environmental Fund

• Florida Keys National Marine Sanctuary (FKNMS)

• Florida Keys National Wildlife Refuges

• Florida Keys Visitors and Convention Bureau

• Key Largo Wastewater Treatment District

Water Quality Assessment Report: Florida Keys 21
• Monroe County

• Monroe County Aviation Authority

• Monroe County Commercial Fishermen 

• National Oceanic and Atmospheric Administration, National 

Marine Sanctuaries Program

• National Park Service (Everglades and Dry Tortugas National Parks)

• Sanctuary Advisory Council—FKNMS

• Sanctuary Friends of the Florida Keys

• Sandra Walters Consultants, Inc.

• Sierra Club

• South Florida Water Management District

• The Nature Conservancy—South Florida/Florida Keys Program

• Thousand Friends of Florida

• U.S. Army Corps of Engineers

• U.S. Environmental Protection Agency

• U.S. Fish and Wildlife Service

• U.S. Navy—Boca Chica Naval Air Station

• Village of Islamorada

The Watershed Management Cycle in 

the Florida Department of Environmental 

Protection’s South District

Figure 1.1 shows the order in which the Department’s South District 

basins will be evaluated under the watershed management cycle. These 

groups are identifi ed according to a U.S. Geological Survey classifi cation 

system using hydrologic unit codes.

Everglades West Coast, a Group 1 basin, was the fi rst basin in the 

district to undergo a preliminary assessment in 2000. A preliminary assessment for the Group 2 basin, Charlotte Harbor, was completed in 2001 

and for the Group 3 basin, Caloosahatchee River, in 2002. The Group 4 

preliminary assessment for the Kissimmee River–Fisheating Creek Basin 

was carried out in 2003. The Group 5 basin, Florida Keys, is the subject of 

this report. 

22 Water Quality Assessment Report: Florida Keys
Figure 1.1: Schedule for Implementing the Watershed Management Cycle in the Department’s South 

District, Basin Groups 1 through 5

Water Quality Assessment Report: Florida Keys 23
Contents of This Report

• Chapter 1: Introduction

briefly characterizes the 

purposes and content of the 

Assessment Report, discusses 

stakeholder involvement, and 

describes how the watershed 

management cycle will be 

implemented in the Department’s South District.

• Chapter 2: Basin Overview

characterizes the basin’s 

general setting, water 

resources, major water quality 

trends, and watershed management activities and processes.

• Chapter 3: Surface Water 

Quality Assessment discusses 

the scope of the assessment, 

summarizes data-gathering 

activities and sources of data, 

describes the EPA’s terminology for designated use attainment and its integrated report 

categories, and provides, 

by basin planning unit, an 

evaluation of water quality, 

a discussion of permitted 

discharges and land uses, 

a summary of ecological 

priorities and problems, and 

an overview of water quality 

improvement plans and 

projects.

• Chapter 4: The Verified List 

of Impaired Waters contains 

the Verified List of impaired 

waters, discusses public 

participation, describes 

documentation of reasonable 

assurance, lists the pollutants 

causing impairments, provides 

listings based on other information indicating a nutrient 

imbalance, and describes 

the adoption process for the 

Verified List.

• Chapter 5: TMDL Development, Allocation, and Implementation discusses the 

prioritization of listed waters, 

TMDL development, TMDL 

allocation and implementation, and the development 

of a Basin Management 

Action Plan.

24 Noteworthy Water Quality Assessment Report: 

Florida Keys
Chapter 2: Basin Overview

Basin Setting

The Florida Keys Basin includes the waters surrounding the Florida 

Keys, a chain of 1,700 islands extending southwest from the southern tip of 

the Florida peninsula. This island chain is 202 miles (325 kilometers) long, 

stretching to within 90 miles (145 kilometers) of Cuba. The basin extends 

from the southern edge of the mainland Florida peninsula south and west 

to the Marquesas Keys, and includes the Dry Tortugas, which are disjunct 

from the rest of the basin. The basin’s waters include Florida Bay, the 

Southwest Shelf (west of Florida Bay); numerous sounds, channels, canals, 

dredged basins, and bays; and portions of the Atlantic Ocean (Straits of 

Florida) and Gulf of Mexico.

The Florida Reef Tract, the only coral reef system off the North American continent and the third largest barrier reef in the world (behind Australia and Belize), is located on the Atlantic side of the Florida Keys. The 

unique tropical nature of the Keys’ ecosystem makes it one of our national 

treasures. The Keys’ coral reefs, seagrasses, and hard-bottom communities 

depend on clean water for their continued existence.

Population

Of the 1,700 islands in the Keys, only 51 are connected to or by the 

Overseas Highway (U.S. 1), and fewer than 70 are inhabited (U.S. Department of Commerce, 1996). The 2004 population of the Keys was approximately 80,492 permanent, year-round residents (Florida Legislature, 2007). 

The population increases by about 25,000 people during peak tourist 

season (winter months).

There are fi ve incorporated municipalities in the basin: Islamorada, 

Layton, Key Colony Beach, Marathon, and Key West. Other named communities include the Ocean Reef Club, Key Largo, and Tavernier.

Although the Florida Keys Basin is located wholly within Monroe 

County, the populated areas of Miami–Dade and Collier Counties to 

the north have an infl uence on the basin’s economy and water quality. 

Table 2.1 lists the region’s past and projected population growth, by 

county, from 1990 to 2020. Figure 2.1 shows the principal geopolitical 

features in the Florida Keys Basin.

Land Use 

Before direct access from the mainland existed, the major land uses 

in the Keys included limited agriculture (pineapples and limes), military 

forts and bases, and the marine support industry (for sponging, fi shing, 

and wrecking). The construction of the Key West Extension of the Flagler 

Railroad, and then the Overseas Highway, followed by the Florida Keys 

Sources of 

Information

Much of the information about the Florida Keys 

Basin in this chapter was 

obtained from Water Quality Concerns in the Florida 

Keys: Sources, Effects, and 

Solutions (Kruczynski, 1999), 

Florida Keys History Museum 

(Wilkinson, 2004), and Florida 

Keys National Marine Sanctuary, Strategy for Stewardship

(U.S. Department of Commerce, 1996). The References section at the end of 

this report contains a complete listing of sources used 

in this document.

Water Quality Assessment Report: Florida Keys 25
Aqueduct (a water pipeline to Key West), changed all that and made the 

development of the Keys possible. From the 1950s to the 1970s, much of 

the upland areas were cleared for residential and commercial use, and a 

large number of finger-fill canals were dredged to satisfy the demand for 

waterfront property. Canal construction ended in the mid-1970s, when the 

adverse environmental impacts became obvious.

The inhabited Keys make up only 5 percent of Monroe County’s total 

land area (65,000 of 1.2 million acres). Monroe County also contains 

99,000 acres of the Everglades, but this area is almost entirely within Everglades National Park and Big Cypress National Preserve. The majority of 

Monroe County is classified as “conservation land” (U.S. Department of 

Commerce, 1996).

Efforts to protect the natural beauty of the Keys and Florida Bay 

included the establishment of the Key West National Wildlife Refuge in 

1908, Fort Jefferson National Monument in 1935 (renamed Dry Tortugas 

National Park in 1992), Great White Heron National Wildlife Refuge 

in 1938, Everglades National Park in 1947, Key Deer National Wildlife 

Refuge in 1957, John Pennekamp Coral Reef State Park in 1960, Biscayne 

National Monument in 1968 (renamed Biscayne National Park in 1980), 

Coupon Bight State Aquatic Preserve and Lignumvitae Key State Aquatic 

Preserve in 1969, Biscayne Bay State Aquatic Preserve in 1974, Big Cypress 

National Preserve in 1974, and Crocodile Lake National Wildlife Refuge 

in 1980. In 1990, the Florida Keys National Marine Sanctuary was established, covering 2,800 square nautical miles of the Keys and surrounding 

waters. Other significant protected areas include Bahia Honda State Park, 

Curry Hammock State Park, Key Largo Hammock Botanical State Park, 

Indian Key Historic State Park, Lignumvitae Key Botanical State Park, 

Long Key State Park, San Pedro Underwater Archaeological Preserve State 

Park, and Windley Key Fossil Reef Geological State Park.

Table 2.2 shows the land use percentages in a broad (Level I) geographic information system analysis of the basin, carried out by the South 

Florida Water Management District (SFWMD) in 2004–2005.

Economic Activity

Early economic activity in the Keys always centered around commercial fishing, but also included salt production (1830s), sponging (1840s), 

cigar making (1868–85), pineapple and lime orchards (early 1900s), 

charcoal production (early 1900s), and military forts and bases. However, 

the most popular business enterprise of the time was the nefarious venture 

of “wrecking” (from 1825 onward). Wreckers would salvage goods from 

Table 2.1: Population Growth in the Florida Keys Region, by 

County, 1990–2020

County 1990 2000 2010 2020

Collier 152,099 251,377 374,501 489,869

Miami-Dade 1,937,194 2,253,779 2,573,997 2,885,883

Monroe 78,024 79,589 81,459 82,735

Total 2,167,317 2,584,745 3,029,957 3,458,487

Source: Florida Legislature, 2007.

26 Water Quality Assessment Report: Florida Keys
Figure 2.1: Geopolitical Map of the Florida Keys Basin

Water Quality Assessment Report: Florida Keys 27
Table 2.2: Level I 2004–2005 Land Use in the Florida Keys 

Basin

Level I Type

Percent 

of Basin

1000 Urban and Built-up 2.3

2000 Agriculture (includes improved pasture) 0.0

3000 Rangeland 0.4

4000 Upland Forest 0.8

5000 Water 89.2

6000 Wetlands 7.0

7000 Barren Land 0.1

8000 Transportation, Communications, and Utilities 0.2

Total 100

vessels that ran aground on the treacherous reefs just offshore. The owners 

of the vessels would then negotiate with the wreckers in “Wrecking Court” 

for a share of the cargo. While this didn’t seem fair to the owners, retaining some cargo was better than losing it all (Floridakeys.com, 2005).

After the construction of the Flagler Railroad to Key West, and then 

the Overseas Highway, the tourism and recreational industry replaced 

most of these activities. Today, approximately 70 percent of Keys’ residents regularly participate in water-based activities, such as recreational 

fi shing, snorkeling, beachgoing, and observing wildlife and nature (Leeworthy and Wiley, 1997). Maintaining the integrity and ecological health 

of marine and terrestrial environments is critical to the economy of the 

Keys. Approximately 3 million visitor trips annually are made to the Keys, 

totaling over 16 million person-days. Visitors generate over $1.3 billion in 

direct output, and tourism supports over 21,800 jobs in the Keys (English, Kriesel, Leeworthy, and Wiley, 1996). Tourists come to the Keys for 

a variety of reasons, including snorkeling, scuba diving, fi shing, wildlife 

observation, beach activities, and sightseeing (Leeworthy and Wiley, 1997).

The Keys’ extensive nursery, feeding, and breeding grounds also support a multimillion-dollar commercial fi shing industry that lands nearly 

20 million pounds of seafood and marine products annually. The military 

continues to be an import sector of the region’s economy, with the presence 

of the U.S. Naval Air Facility in Key West.

Surface Water Resources

The Florida Keys Basin is unique, in that it consists almost entirely 

of water. Surface waters, all estuaries or open marine waters, occupy 

over 95 percent of the total basin area. This section delineates the basin’s 

hydrology, describes the movement and management of water in the basin, 

briefl y describes the major characteristics of surface waters that infl uence 

water quality in the basin, and describes surface water classifi cations and 

special designations.

28 Water Quality Assessment Report: Florida Keys
Figure 2.2 shows the locations of the largest waterbodies. A 

more detailed discussion in Chapter 3 provides information on each 

 planning unit.

The surface waters of the Keys include the shallow waters of Florida 

Bay and the Southwest Florida Shelf, the nearshore waters surrounding the 

islands, and the oceanic waters of the Gulf of Mexico and the Straits of 

Florida to the west and south.

Human effects on water quality in the Florida Keys Basin come from 

two main sources: runoff from the south Florida mainland and discharges 

from the Keys themselves. Runoff from the mainland carries nutrients 

and other pollutants from agricultural and developed areas into Florida 

Bay. Drainage projects on the mainland are often artifi cially manipulated 

for fl ood control or water retention, altering the amount and timing of 

fresh water fl ows, and causing unusually high or low salinity in Florida Bay. 

Longshore currents also carry water from the Caloosahatchee River, Peace 

River, and small coastal rivers in Lee and Collier County into western 

Florida Bay. 

On the Keys themselves, nearshore waters are infl uenced by effl uent from septic tanks and cesspits, stormwater runoff, spills of hazardous 

materials, and discharges to shallow injection wells that can move quickly 

through the porous limestone soil to open waters or adjacent canals. 

Canals with little fl ushing often accumulate organic materials and other 

pollutants, and may have poor water quality. 

The oceanic waters west and south of the Keys generally have good 

water quality and dilute pollutants from the land, but occasionally carry 

shipping discharges (such as tar balls) and water quality problems (such as 

red tide and Mississippi River discharge) from distant areas via the Loop 

Current and the Gulf Stream.

In 1990, the Florida Keys National Marine Sanctuary was established, 

covering 2,800 square nautical miles of the Keys and surrounding waters. 

Under the sanctuary’s management plan, a Water Quality Protection Program has been developed to address pollution and protect all the waters of 

the Keys.

Surface Water Quality Classifications 

Florida’s water quality standards, the foundation of the state’s program of water quality management, designate the “present and future most 

benefi cial uses” of the waters of the state (Subsection 403.061[10], Florida 

Statutes [F.S.]). Water quality criteria for surface water and ground water, 

expressed as numeric or narrative limits for specifi c parameters, describe the 

water quality necessary to maintain these uses. Florida’s surface water is 

classifi ed using the following fi ve designated use categories:

Water Quality Assessment Report: Florida Keys 29
Figure 2.2: Surface Water Resources of the Florida Keys Basin

30 Water Quality Assessment Report: Florida Keys
Class I Potable water supplies

Class II Shellfi sh propagation or harvesting

Class III Recreation, propagation, and maintenance of a healthy, 

well-balanced population of fi sh and wildlife

Class IV Agricultural water supplies

Class V Navigation, utility, and industrial use (there are no state 

waters currently in this class)

The waters of the Florida Keys Basin are either Class II or Class III.

Special Designations

Outstanding Florida Waters

The following waterbodies in the Florida Keys Basin have been given 

additional protection through the Outstanding Florida Water (OFW) 

designation.

• Bahia Honda State Park

• Biscayne Bay Aquatic Preserve

• Coupon Bight Aquatic Preserve

• Crocodile Lake National Wildlife Refuge

• Curry Hammock State Park

• Dry Tortugas National Park

• Everglades National Park

• Florida Keys Special Water

• Fort Zachary Taylor State Historic Site

• Great White Heron National Wildlife Refuge

• Indian Key Historic State Park

• John Pennekamp Coral Reef State Park

• Key Largo Hammock Botanical State Park

• Key West National Wildlife Refuge

• Lignumvitae Key Aquatic Preserve

• Lignumvitae Key Botanical State Park

• Long Key State Park

• Looe Key National Marine Sanctuary

• National Key Deer Refuge

• San Pedro Underwater Archaeological Preserve State Park

• Windley Key Fossil Reef Geological State Park

OFWs are designated for “special protection because of their natural attributes” (Subsection 403.061[27], F.S.). These waters are listed in 

Section 62-302.700, Florida Administrative Code (F.A.C.). The intent of 

an OFW designation is to maintain ambient water quality, even if these 

designations are more protective than those required under the waterbody’s 

surface water classifi cation. Most OFWs are associated with managed areas 

in the state or federal park system, such as aquatic preserves, national seashores, or wildlife refuges. Other OFWs may also be designated as “Special 

Waters” based on a fi nding that the waters are of exceptional recreational or 

ecological signifi cance, and are identifi ed as such in Rule 62-302, F.A.C.

Water Quality Assessment Report: Florida Keys 31
Ground Water Resources

Ground Water Occurrence

Two types of limestone comprise the islands of the Florida Keys and 

make up the aquifer material beneath the Keys, including nearshore and 

offshore areas. The upper half of the archipelago, extending from Biscayne 

Bay southwest to Big Pine Key, is composed of the Key Largo Limestone. 

The lower half, extending from Big Pine to Key West, is composed of 

the Miami Limestone, which lies on top of the Key Largo Limestone 

(Lane, 1986).

During Pleistocene times, colonies of coral accumulated along the rim 

of the Florida Plateau, forming reefs that grew in thickness as historical 

sea levels fl uctuated. In some places, this accumulation of coralline rock, 

known as the Key Largo Limestone, grew up to 200 feet in thickness. As 

the reefs grew, carbonate sand banks accumulated behind the reefs. A lime 

sandbank covered the southwestern part of the coral reefs, and when the 

sea level dropped to expose this area, the Lower Keys were formed.

The granular carbonate rock that formed from the lime sand is known 

as the Miami Limestone (also referred to as the Miami Oolite for the tiny 

carbonate-coated granules, known as oolites, that make up the rock). The 

Key Largo Limestone is prone to the development of cavities and solution channels, and as such is highly porous and permeable. The Miami 

Limestone, on the other hand, is denser, less subject to the development of 

secondary porosity, and less permeable. A thin veneer of weathered limestone or (in areas of development) a layer of fi ll material lies on top of the 

limestone in the Keys.

Ground Water Usage

Ground water in the Florida Keys is hypersaline to brackish and does 

not provide a reliable source of potable water, although in the early days of 

European settlement, thin lenses of fresh water were tapped by very shallow 

wells to provide water. Today, the potable water supply for the residents of 

the Keys is transported from the mainland via the Florida Keys Aqueduct, 

a pipeline that extends from Dade County, and local ground water use for 

potable supply is not an issue. Some shallow ground water is used for nonpotable supply in the Lower Keys, and some shallow wells originally used 

for potable supply still exist in Key West.

Instead of being a source of water for potable supply, the highly porous 

and permeable Key Largo Limestone has for many years been used to 

absorb domestic wastewater disposed of in septic tanks, cesspits, and injection wells. In recent years, this practice has led to concern over the human 

health and ecological impacts of submarine ground water discharge. It 

has been reported that in the Florida Keys, more than 25,000 septic tanks, 

5,000 cesspits, and 600 shallow injection wells release domestic wastewater 

into the Key Largo Limestone (Haag, Miller, Bradner, and McCulloch, 

1996). According to the Florida Department of Environmental Protection’s (Department’s) Water Assurance Compliance System database, 

approximately 280 treatment facilities with active injection wells in the 

32 Water Quality Assessment Report: Florida Keys
basin are permitted for the disposal of domestic wastewater. Some facilities 

have more than 1 injection well.

Ground Water–Surface Water Interactions 

Several tracer studies monitoring the movement of introduced substances in septic tanks and injection wells have shown that there is a direct 

connection between ground water and the surrounding surface waterbodies, with rates of ground water infl ux highest where tidal springs/

solution holes, tidal channels, or excavated canals exist (Dillon, Corbett, 

Burnett, and Chanton, 2001; Paul, McLaughlin, Griffi n, Lipp, Stokes, and 

Rose, October 2000; and Corbett, Chanton, Burnett, Dillon, Rutkowski, 

and Fourqurean, 1999).

Using a combination of natural chemical tracers and seepage meter 

measurements, Corbett et al. (1999) found that overall ground water–

surface water interactions are greatest near the shore along the Florida 

Bay side of the Florida Keys. Based on this, the authors determined that 

the ground water circulation of wastewater discharged to ground water 

beneath the Keys could be a signifi cant source of nutrients to the eastern 

portion of Florida Bay. Chanton (1998) also found areas of natural ground 

water seepage on the Atlantic Ocean side of the Keys. Ground water fl ow 

beneath the Keys is believed to oscillate in response to tidal fl uctuations, 

more so on the Atlantic side than on the Florida Bay side where tides 

are dampened. 

In their study, Paul et al. (October 2000) used viral tracers to monitor the migration of water from a septic tank and an injection well at two 

locations in the Keys. Both tracer studies showed a rapid movement of 

wastewater from on-site treatment/disposal sites via tidal channels outward 

toward the Atlantic Ocean and reef systems.

In an artifi cial tracer study of high-rate injection wells, Dillon et al. 

(2001) observed the buoying effect of low-salinity wastewater once it is 

injected into the underlying saline aquifer. The study demonstrated the 

tendency of wastewater, once injected, to rise vertically until it either 

reaches a confi ning cap or an outlet. The results indicate that wastewater 

injected into the shallow subsurface can reach marine surface waters in a 

matter of hours.

Watershed Management Activities and 

Processes

Historical Issues and Activities

The clear tropical waters, bountiful resources, and appealing natural 

environment were among the many fi ne qualities that attracted explorers and visitors for centuries to the Florida Keys. However, warning signs 

that the Keys’ environment and natural resources were fragile, and not 

infi nite, came early. In 1957, a group of conservationists and scientists held 

a conference at the Everglades National Park and discussed the demise of 

the coral reef resources in the Keys, at the hands of those attracted there 

because of their beauty and uniqueness. This conference resulted in action 

Water Quality Assessment Report: Florida Keys 33
that created the world’s fi rst underwater park, John Pennekamp Coral Reef 

State Park, in 1960.

Just a little more than a decade following the park’s establishment, 

however, a public outcry was sounded that cited continuing pollution, 

overharvesting, physical impacts, overuse, and use confl icts in the Keys. 

Environmentalists and scientists alike echoed these concerns throughout 

the 1970s and into the 1980s and 1990s. The deterioration of the marine 

environment in the Florida Keys is no longer a matter of debate. Corals are 

in decline, as signaled by an increase in coral diseases, coral bleaching, and 

decreased living coral cover. Marine scientists have reported an invasion of 

algae in seagrass beds and onto coral reefs. Fisheries scientists are reporting 

declines in some fi sh stocks, and Florida Bay has undergone changes during 

the past decade that have resulted in plankton blooms, sponge and seagrass 

die-offs, and fi sh kills.

Table 2.3 provides a timeline summary of major events shaping 

Florida, the Everglades, and the Florida Keys region, from the fi rst European Florida explorer to the present.

Ongoing Programs and Projects

Much of the progress in the Florida Keys Basin in developing water 

quality restoration plans and implementing watershed and water quality improvements is attributable to coordinated local, state, and regional 

efforts. Many plans share common goals, and their implementation is 

based on various groups playing critical roles in planning, funding, managing, and executing projects. The Department continues to coordinate its 

efforts with these entities to obtain data, improve monitoring activities, 

and exchange information through periodic meetings. A number of major 

initiatives, if continued, will have signifi cant positive effects on the basin’s 

water quality.

Florida Keys Area of Critical State Concern

Monroe County and the city of Key West were each designated as an 

Area of Critical State Concern (ACSC) by the governor and cabinet in 

1975. The ACSC Program identifi es certain regions of the state for special 

protection, based on perceived threats to signifi cant natural resources 

and/or the need to protect public facility investments. The program is 

authorized by a component of the Florida Environmental Land and Water 

Management Act of 1972. The act sets forth criteria and procedures for 

designating the areas and identifi es the Florida Department of Community 

Affairs (DCA) as the state agency responsible for administering the program. The objective is to review the comprehensive plans, land development regulations, and activities in each ACSC. Areas are deemed critical 

when it is determined that there is a need to protect public resources from 

unregulated or inadequately regulated development. The ACSC Program 

has very little jurisdiction in the water, because its jurisdiction ends approximately 250 feet below the mean high-water mark. It is important, however, because of the limits it places on upland development and the capital 

improvements it requires to protect water quality.

34 Water Quality Assessment Report: Florida Keys
Table 2.3: Historical Issues and Activities in the South Florida Region and Florida Keys Basin

Year Issues and Activities

1513–

1880

In 1513, Ponce de Leon discovered the Dry Tortugas. Spain ceded east and west Florida to the 

United States in 1821. Florida became a state in 1845. The U.S. Army Corps of Engineers (USACOE) 

and a labor force of slaves from Key West began the construction of Fort Jefferson in the Dry Tortugas in 1846. The construction continued for 30 years but was never completed. Congress conveyed 

all swamp and overflowed lands to the state in 1850. Trustees of the Internal Improvement Trust 

Fund established and received control of unsold swamp and overflowed lands in 1855. Abraham 

Lincoln was assassinated by John Wilkes Booth on April 14, 1865. On June 30, 1865, Dr. Samuel A. 

Mudd was sentenced to life imprisonment at Fort Jefferson as an accessory to Lincoln’s assassination for setting a broken leg that Booth sustained during his escape after the assassination. Florida 

Governor Davis Walker granted William Gleason over 6 million acres of land in 1866, based on his 

proposal to drain swampland east and south of the Everglades. Dr. Samuel Mudd helped prison 

doctors fight an outbreak of yellow fever at Fort Jefferson in 1867, and as a result was pardoned by 

President Andrew Johnson in 1869. In 1874, the U.S. Department of the Army officially abandoned 

Fort Jefferson.

1881–

1899

Florida sold 4 million acres of land in the northern Everglades to Hamilton Disston in 1881, at 

25 cents an acre. In 1882, Disston began the construction of a canal between Lake Okeechobee 

and the Caloosahatchee River that was completed in 1884. Henry Flagler purchased a short line 

railroad between Jacksonville and St. Augustine in 1885. Flagler extended his Florida East Coast 

(FEC) Railroad line from St. Augustine southward to Palm Beach in 1893. Hamilton Disston, facing 

bankruptcy, committed suicide in 1896. Flagler’s second wife was committed to an insane asylum 

in 1897. Insanity was not grounds for divorce in Florida at the time. The USACOE, under the Federal 

Rivers and Harbor Act, recommended navigational improvements (channelization) for the Kissimmee–Okeechobee–Caloosahatchee watershed to Congress in 1899.

1900–

1919

Flagler convinced the Florida legislature to change its divorce laws in 1901 so he could divorce his 

second wife and marry his third wife, Mary Lily Kenan (Florida later repealed this change in the 

divorce law). Former gunrunner Napoleon Bonaparte Broward was elected governor of Florida in 

1904 on a promise to “Drain the Everglades.” John Gifford introduced melaleuca trees in 1906 as 

the ideal plant for drying out the Everglades. The Florida legislature created the Everglades Drainage District in 1907, publicly funding drainage and flood control projects around Lake Okeechobee. 

This “district” was the first of several to carry out drainage projects in south Florida. The Key West 

National Wildlife Refuge was established in 1908. Flagler extended the FEC Railroad to Key West in 

1912, and regular train service began. Henry Flagler died in Palm Beach in 1913. The General Drainage Act of 1913 authorized adjacent landlords to establish drainage districts to drain and “reclaim” 

their lands. The construction of the Tamiami Trail began in 1916. Royal Palm State Park, a 4,000-

acre tract on Paradise Key, was established as the first protected area in the Everglades in 1916.

1920–

1934

Barron Collier’s Tamiami Road Building Company acquired large tracts of land in Collier and southern Lee Counties from 1921 to 1923, and drainage of the Big Cypress Swamp began with the construction of the Barron River Canal and the Turner River Canal. The South Florida real estate boom 

began in the early 1920s, and Carl Fisher transformed a wet, mangrove-filled island into Miami 

Beach. A major hurricane hit Miami Beach in September 1926, and the real estate boom went bust. 

The same hurricane killed more than 400 people in the Moore Haven area due to Lake Okeechobee 

flooding. Lake Okeechobee flooded again during a 1928 hurricane and killed another 2000+ people 

south of the lake. The Tamiami Trail was completed in 1928. The Okeechobee Flood Control District 

was established in 1929 in response to the Lake Okeechobee flooding. The Southern Sugar Company accumulated 130,000 acres south of Lake Okeechobee in 1929. Carl Fisher’s real estate empire 

collapsed into bankruptcy in 1932. The FEC Railroad declared bankruptcy in 1932.

Water Quality Assessment Report: Florida Keys 35
Year Issues and Activities

1935–

1945

The “Labor Day” (Category 5) hurricane hit the Florida Keys in 1935, killing 423 people. The 17-foot 

storm surge cleared every tree and building from Upper and Lower Matecumbe Keys, and destroyed 

the FEC Railroad line that connected the Florida Keys to the mainland. As a result, the FEC sold its 

railroad “right of way” from Florida City to Key West to the Overseas Road and Toll Bridge District 

for $640,000; the district issued revenue bonds to finance the construction of the Overseas Highway 

to Key West. President Franklin Roosevelt set aside Fort Jefferson and the surrounding waters as 

a national monument in 1935. Carl Fisher declared personal bankruptcy in 1936 and died 3 years 

later. The 30-foot Hoover Dike, flanking three-quarters of Lake Okeechobee, was completed in 

1937. The 1937 Florida legislature created the Florida Keys Aqueduct Commission (FKAC). The 

Overseas Highway was completed and opened to traffic on March 29, 1938. The Great White Heron 

National Wildlife Refuge was established in 1938 as a haven for great white herons, migratory birds, 

and other wildlife. The U.S. Navy Base in Key West was reopened in 1939. With two-thirds federal 

financing provided by Congress, the Navy acquired a 353-acre wellfield in Florida City in 1941, and 

together with the FKAC, built an 18-inch water pipeline to serve Key West in 1942. Electrical service 

to Key West followed shortly thereafter. Florida’s first oil-producing well was drilled in 1943, north 

of the Big Cypress Swamp near Sunniland. Exploratory oil well drilling also began in the Florida 

Keys in 1943. In 1944, the Overseas Highway was renamed U.S. 1.

1946–

1960

Marjory Stoneman Douglas published The Everglades: River of Grass in 1947. That same year, 

Everglades National Park was established, with the Royal Palm State Park as its nucleus. In 1947, 2 

hurricanes also flooded South Florida. The existing canal network in south Florida was unsuccessful 

in alleviating flooding. In response, Congress passed the Flood Control Act of 1948, authorizing the 

USACOE to create the huge, multistage Central and Southern Florida (C&SF) Flood Control Project. 

In response, the 1949 Florida legislature created the Central and Southern Florida Flood Control District (C&SFFCD) to operate and maintain the massive flood control project. All functions and assets 

of the Okeechobee Flood Control District and the Everglades Drainage District were liquidated and 

vested in the new C&SFFCD. The C&SFFCD constructed levees along the eastern Everglades in 1953 

to retain freshwater runoff during the dry season. Congress authorized the channelization of the 

Kissimmee River in 1954. The Key Deer National Wildlife Refuge was established in 1957 to protect 

and preserve Key deer and other wildlife resources in the Florida Keys. The United States imposed 

an embargo on Cuban sugar in 1959. Dr. Gilbert Voss of the Marine Institute of Miami and John 

Pennekamp, Assistant Editor of the Miami Herald, convinced the Florida Board of Parks and Historic 

Memorials to designate a 75-square-mile section of water offshore of Key Largo as a permanent 

coral reef preserve in 1959. In 1960, President Dwight Eisenhower transferred the federal waters 

beyond the 3-mile limit, out to a depth of 300 feet, to the state for the preserve. On December 10, 

1960, Governor Leroy Collins dedicated and named the underwater preserve John Pennekamp Coral 

Reef State Park. Levee construction was expanded to enclose Water Conservation Areas 1 and 2 in 

the northern Everglades in 1960.

Table 2.3 (continued)

36 Water Quality Assessment Report: Florida Keys
Year Issues and Activities

1961–

1969

The Rand Trust and the Radford Crane family donated 74 acres of land on Key Largo to John Pennekamp State Park in 1961 to use as a land base. Also in 1961, Herbert and Donna Shaw donated 

and cleared a 60-foot right-of-way to access that land from U.S. 1. The Kissimmee River channelization project began in 1962. A levee was constructed parallel to the Tamiami Canal in 1962, partially 

enclosing Water Conservation Area 3. In 1963, Radford Crane made an additional donation of threequarters of Largo Sound and all of Julia Island (now El Radabob Key), with 3 miles of waterfront, 

to John Pennekamp State Park. The Hoover Dike was raised to 40 feet above mean sea level and 

extended completely around Lake Okeechobee by 1964. Land drainage of the Big Cypress Swamp 

was intensified with the construction of the Golden Gate Estates canal drainage system in the early 

1960s, lowering water levels in the western part of the swamp by an average of 2 feet. In 1965, the 

“Christ of the Deep” statue, designed by the Italian sculptor Guido Galletti and commissioned by 

Egigi Cressi, an Italian dive equipment manufacturer, was gifted to the Underwater Society of America. John Pennekamp State Park was chosen as the final underwater resting place of the statue. 

The 9-foot-high, 4,000-pound bronze statue was submerged and installed in 1966. Canal C-111 was 

constructed in 1967 as an extension of the Atlantic Ridge to provide flood control and drainage 

between Florida Bay and the Tamiami Canal. The western boundary of Water Conservation Area 3 

was completed in 1967. Westinghouse, under contract from the U.S. Navy, built a desalination plant 

on Stock Island (Key West) that began operations in June 1967. Biscayne National Monument was 

designated by Congress in 1968. Land development and speculation schemes blossomed throughout southwest Florida. Jetport plans were unveiled for the Big Cypress Swamp’s eastern edge, and 

construction began in 1968. Governor Claude Kirk temporarily halted construction in 1969; however, one 2-mile runway was already completed. In the same year, Friends of the Everglades formed 

to oppose the jetport. The 6,000-acre Coupon Bight State Aquatic Preserve and the 7,500-acre 

Lignumvitae Key Aquatic Preserve were established in 1969.

1970–

1975

President Richard Nixon terminated the Big Cypress Jetport project in 1970. The Kissimmee River 

channelization project was completed in 1971, turning a 103-mile-long, meandering river into a 

56-mile-long canal that speeded the flow of sediments and nutrients into Lake Okeechobee. One 

of Florida’s worst drought years on record in 1970–71 led to massive wildfires in the Everglades in 

the spring of 1971, burning thousands of acres of sawgrass marsh. The protracted drought, which 

caused the C&SFFCD to cut back agricultural water withdrawals, heightened the awareness of water 

supply and environmental problems in Florida, and prompted the 1971 Governor’s Conference on 

Water Management Issues. The conference concluded that water quality was steadily deteriorating 

in practically all aquatic systems in southern Florida, and that water quantity was not being managed 

to ensure a minimum adequate supply during dry season. The conference was the impetus for the 

Water Resources Act, passed by the Florida legislature in 1972, which established 5 water management districts statewide and expanded their responsibilities to include the control and regulation 

of ground water and surface water. Florida citizens approved a constitutional amendment in 1972 

authorizing $240 million in state bonds to buy environmentally sensitive lands. Congress passed the 

federal Clean Water Act in 1972. Congress created the National Marine Sanctuary Program in 1972. 

The Big Cypress Swamp was designated as an Area of Critical State Concern (ACSC) in 1973. Congress set aside about 40 percent of the Big Cypress Swamp (570,000 acres) as a National Preserve, 

a new category of federally protected lands, in 1974. The Florida legislature passed the Aquatic Preserves Act in 1975, creating a statewide system of specially protected and managed aquatic areas. 

The Florida Department of Environmental Regulation (DER) was created in 1975.

Table 2.3 (continued)

Water Quality Assessment Report: Florida Keys 37
Year Issues and Activities

1976–

1990

The channelized Kissimmee River (C-38) was linked to the rapid eutrophication of Lake Okeechobee 

in a 1976 summary report to the legislature. The C&SFFCD was renamed the South Florida Water 

Management District (SFWMD) in 1976. The Navy transferred its Florida City wellfield and Keys 

water supply infrastructure to the newly established Florida Keys Aqueduct Authority (FKAA) in 

1976. The Rookery Bay National Estuarine Research Reserve and the Cape Romano–Ten Thousand 

Islands State Aquatic Preserve were established in 1978. The 1979 legislative session created the 

Conservation and Recreation Lands (CARL) Program for land acquisition. Congress redesignated 

Biscayne National Monument as a National Park in 1980. The Florida legislature passed the Save 

Our Rivers Act (SOR) in 1981, authorizing the water management districts to purchase lands along 

rivers. The FKAA upgraded the water pipeline in the Keys to 36 inches (to Tavernier), 30 inches (to 

Marathon), and 24 inches (to Sugarloaf Key), respectively, in 1982. Governor Bob Graham initiated the Save the Everglades Program in 1983, laying the groundwork for a federal–state–regional 

partnership to restore the natural functions of the Everglades ecosystem. The Florida legislature 

designated the Florida Keys as an ACSC in 1984, protecting resources and public facilities of major 

statewide significance by requiring that any local development in such designated areas be consistent with state guidelines. A massive seagrass die-off that began in Florida Bay in the summer of 

1987 resulted in 40 square kilometers of seagrass loss and damage to another 231 square kilometers. Congress passed the Big Cypress Preserve Addition Act in 1988, which added 146,000 acres 

to the Big Cypress National Preserve. In 1990, Congress created the Florida Keys National Marine 

Sanctuary, which consisted of 2,800 square nautical miles. The Florida legislature adopted Governor Bob Martinez’s Preservation 2000 (P-2000) Program in 1990; P-2000 provided funds for the 

CARL and SOR land acquisition programs. 

1991–

1996

In 1992, Hurricane Andrew struck southern Dade County, causing $16 billion in damage. Congress 

directed the USACOE to undertake the restoration of the Kissimmee River in 1992. Fort Jefferson 

National Monument was redesignated by Congress as the Dry Tortugas National Park in 1992. 

The Florida Environmental Reorganization Act merged the DER and the Department of Natural 

Resources into the Florida Department of Environmental Protection in 1993. Congress passed 

the Water Resources Development Act and the Everglades and South Florida Ecosystem Restoration Act in 1996; these provided the USACOE with the authority to “restudy” the performance and 

impacts of the original C&SF Project, to recommend improvements and/or modifications to restore 

the Everglades/South Florida ecosystem, and to provide for other water resource needs. The Ten 

Thousand Islands National Wildlife Refuge was established in 1996 to protect important mangrove 

habitats, native wildlife, and endangered species. In 1996, the Florida Administration Commission publicly noticed its intent to modify Monroe County’s 2010 Comprehensive Plan by restricting 

further development in the Florida Keys. This proposed rule amendment was challenged by local 

interests for being too restrictive and by environmentalists for being too lenient. The matter was 

brought before the Department of Administrative Hearings. In 1997, Administrative Law Judge Larry 

J. Sartin issued an order upholding a state rule that imposed severe restrictions on development in 

the Florida Keys and reaffirmed the findings of the Florida Administration Commission’s landmark 

1996 order. 

Table 2.3 (continued)

38 Water Quality Assessment Report: Florida Keys
Year Issues and Activities

1997–

2006

The Florida legislature established the Florida Forever Program in 1999, replacing P-2000. This 

new program provided $300 million a year for land preservation and restoration efforts. Groundbreaking began on the Kissimmee River Restoration in 1999. The C&SF Restudy, conducted by 

the USACOE and SFWMD, resulted in the Comprehensive Everglades Restoration Plan (CERP), 

which was transmitted to Congress in 1999. CERP was designed to capture, store, and redistribute 

freshwater previously lost to tides and to regulate the quality, quantity, timing, and distribution of 

water flows throughout the Everglades region. The Restudy also recommended to Congress that a 

hydrologic feasibility study be conducted for southwest Florida. A mysterious area of “black water,” 

first detected on satellite photos in December 2001, was observed expanding over 700 square 

miles of Florida Bay from January through April 2002. The “black water” was later determined to 

be a diatom bloom originating from offshore. The Final Report of the Florida Keys Carrying Capacity Study, an analysis designed to determine the ability of the Florida Keys ecosystem to withstand 

additional development, was released in November 2003. In 2005, the tracks of Hurricanes Katrina, 

Rita, and Wilma passed relatively close to the Florida Keys, causing flooding. In 2006, the track of 

Tropical Storm Ernesto crossed right over the middle Keys. 

Table 2.3 (continued)

Specifi c ACSC objectives that address water quality issues in the Keys 

include the following:

• Coordinating all local governments in the Keys to ensure that their 

comprehensive plans include a drainage element, a wastewater treatment element, and a capital improvement element, and that they are 

consistent with the policies of the ACSC Program and the principles 

guiding development,

• Strengthening local government planning in the Keys to the extent 

that the ACSC designation may be removed,

• Protecting marine resources and shorelines, including wetlands, 

 mangroves, seagrasses, coral reefs, and their respective faunas, and

• Limiting the adverse effects of development on water quality 

throughout the Keys.

The governor and cabinet can designate an area by rule, setting the 

boundaries of an ACSC and the principles to be used for guiding development activities. Once an area is designated, affected local governments 

have 180 days to submit land development regulations consistent with 

the principles set forth in the rule. If the local government fails to submit 

regulations, or if its proposals are insuffi cient, the state land planning 

agency may propose development regulations for the governor and cabinet’s 

approval. 

Florida Keys National Marine Sanctuary

Fourteen exploratory oil wells were drilled in the vicinity of the Florida 

Keys between 1943 and 1962 (Dustan, Lidz, and Shinn, 1991). The 

threat of oil drilling again in the mid-1980s, combined with reports of 

deteriorating water quality, coral bleaching, die-offs of seagrasses and sea 

urchins, declines in reef fi sh populations, the spread of coral disease, and 

the grounding of 3 large ships on the coral reef within 18 days in the fall of 

Water Quality Assessment Report: Florida Keys 39
1989, prompted congressional action to protect the coral reef ecosystem of 

the Florida Keys. In 1990, Congress designated the waters surrounding the 

entire Florida Keys archipelago a National Marine Sanctuary and called for 

the development of a comprehensive management plan.

The Florida Keys National Marine Sanctuary consists of 2,800 square 

nautical miles (9,500 square kilometers) of coastal and oceanic waters, 

and the submerged lands underneath, surrounding the Florida Keys and 

extending westward to encompass the Dry Tortugas islands, but excluding Dry Tortugas National Park. The shoreward boundary of the sanctuary is the mean high-water mark. Within these waters are spectacular, 

unique, and nationally signifi cant marine environments, including seagrass 

meadows, mangrove islands, and coral reefs. These marine environments 

support rich biological communities possessing extensive conservation, 

recreational, commercial, ecological, historical, research, educational, and 

aesthetic values that give this area special national signifi cance. These 

environments are the marine equivalent of tropical rain forests in that they 

support high levels of biological diversity, are fragile and easily susceptible 

to damage from human activities, and possess high value if properly 

 conserved.

As part of the marine sanctuary’s establishment, a Comprehensive 

Management Plan and a Water Quality Protection Program were created 

for the sanctuary’s waters. Management in the federal and state waters 

is achieved through a cooperative agreement between the sanctuary staff 

(National Oceanic and Atmospheric Administration [NOAA]–National 

Ocean Service), the Department, and the Florida Fish and Wildlife 

 Conservation Commission.

Florida Keys Water Quality Protection Program

Recognizing the critical role of water quality in maintaining the 

resources of the Florida Keys National Marine Sanctuary, Congress (via the 

Florida Keys National Marine Sanctuary and Protection Act) directed the 

U.S. Environmental Protection Agency (EPA) and the state, as represented 

by the Department, to develop a Water Quality Protection Program for 

the sanctuary. The purpose of the Water Quality Protection Program is to 

“recommend priority corrective actions and compliance schedules addressing point and multipoint sources of pollution to restore and maintain 

the chemical, physical, and biological integrity of the sanctuary, including restoration and maintenance of a balanced, indigenous population of 

corals, shellfi sh, fi sh, and wildlife, and recreational activities on the water.” 

In addition to corrective actions, the act also requires the development 

of a water quality monitoring program and the provision of opportunities for public participation in all aspects of developing and implementing 

the program.

The Water Quality Protection Program consists of an administrative 

framework and a set of initial recommendations for corrective actions, 

monitoring, research and special studies, and education and outreach. 

The recommendations, published in the Water Quality Protection Program 

Document, are included in the comprehensive management plan prepared 

by NOAA to guide the use of the sanctuary (see sidebar).

Additional Sources 

of Information

Additional information on 

Florida Keys National Marine 

Sanctuary’s Water Quality 

Protection Program is available at http://floridakeys.

noaa.gov/wqpp/welcome 

.html.

Additional information on 

the Florida Keys National 

Marine Sanctuary’s Education Program is available at 

http://floridakeys.noaa.gov/

edu/welcome.html.

Additional information on 

the Southeast Environmental Research Center’s Water 

Quality Monitoring Network 

is available at http://serc.fiu 

.edu/wqmnetwork/.

40 Water Quality Assessment Report: Florida Keys
Recommendations for monitoring and special studies are being implemented directly by the EPA and the Department under the administration framework described in the Final Water Quality Protection Program 

Document. For educational activities, the EPA and the Department will 

assist NOAA, which is responsible for educational programs within the 

sanctuary. In contrast, most recommendations for corrective actions 

will require coordination activities by numerous federal, state, and local 

 governmental agencies.

Development of the Water Quality Protection Program occurred in 

two phases. During Phase I, information was compiled and synthesized on 

the status of the sanctuary’s natural environment. Priority problems were 

identifi ed through literature review and through discussions with technical 

experts and other participants in technical workshops. Phase II focused on 

developing options for corrective actions, developing a water quality monitoring program and research and special studies programs, and developing a 

public education and outreach program. Recommended corrective actions 

were incorporated into Monroe County’s Sanitary Wastewater Master Plan. 

The Water Quality Protection Program has funded three long-term monitoring projects representing a fi ve-year commitment by the EPA to assess 

overall water quality, coral reef and hardbottom community health, and 

seagrass community health (see sidebar). Also, a research/special studies 

component consists of a multitude of smaller, more focused studies looking at specifi c cause-and-effect relationships and the impacts of specifi c 

 environmental perturbations.

Florida Keys Water Quality Improvements Program

The Florida Keys Water Quality Improvements Program is a cooperative effort between the U.S. Army Corps of Engineers (USACOE) (the lead 

federal agency) and SFWMD (the lead nonfederal sponsor). In 2001, Congress authorized the USACOE to provide technical and fi nancial assistance 

to carry out projects for the planning, design, and construction of treatment works to improve water quality in the Florida Keys National Marine 

Sanctuary. The primary purpose of this effort is to improve water quality 

in the Florida Keys by implementing the Water Quality Protection Program’s recommended priority corrective actions, as expressed in the Monroe 

County Sanitary Wastewater Master Plan (discussed in the next section).

Congress authorized $100 million for the water quality improvements 

in 2000, but the actual payments must be approved in appropriations bills. 

In 2001, Congress approved a $500,000 payment, and the project began 

under the guidance of the USACOE and SFWMD. Both agencies have 

been working with local governments to upgrade water quality systems 

throughout the Keys. As of 2006, a total of $7.5 million has been actually 

paid out. 

Monroe County Sanitary Wastewater Master Plan

As mandated by the Monroe County Year 2010 Comprehensive Plan, 

the Sanitary Wastewater Master Plan was prepared as an initial step toward 

satisfying the directive that nutrient load levels should be reduced in the 

marine ecosystem of the Florida Keys. As population and tourism in the 

Water Quality Assessment Report: Florida Keys 41
Keys have increased over the years, improvements in wastewater treatment 

and management practices have not kept pace with this growth, resulting 

in a signifi cant degradation of water quality in canals and nearshore waters 

surrounding the Keys. The objective of the master plan is to provide an 

equitable, ecologically sound, and economical implementation strategy for 

managing wastewater and improving water quality in the Florida Keys. 

The master plan must also satisfy environmental and regulatory criteria 

and guidelines.

Ongoing research has determined that nutrients from wastewater are 

one of the major contributors to the decline of water quality in the Florida 

Keys, prompting the proposal to provide better sewage treatment practices. 

In this vein, the Water Quality Protection Program Steering Committee 

concurred with the following conclusions:

• Cesspits are illegal, provide very little treatment, and are a health 

hazard;

• Sewage discharges from cesspits and septic tanks are a source of 

nutrients and human pathogens;

• Septic tank systems remove a very small amount of nutrients; and

• Aerobic treatment units (ATUs) and package treatment plants do not 

remove dissolved nutrients.

Approximately 23,000 private onsite systems and approximately 

246 small wastewater treatment plants (WWTPs) are currently operating throughout the Keys. The onsite systems comprise approximately 

15,200 permitted septic systems, 640 ATUs, and 7,200 unknown systems 

(of which about 2,800 are suspected to be illegal cesspits). It is estimated 

that the onsite systems contribute 4.88 million gallons per day (mgd) of 

wastewater, and the WWTPs contribute 2.40 mgd of wastewater. Each 

of these onsite systems and treatment plants provides minimal nutrient removal and generally discharges effl uent containing nutrient levels 

of about 20 milligrams per liter (mg/L) of total nitrogen and 5 mg/L of 

total phosphorus.

The wastewater management plan recommends that existing onsite 

systems located in lower-density areas of the Keys be upgraded or replaced 

with onsite wastewater nutrient reduction systems. The plan also includes 

12 community wastewater collection and treatment systems and 5 regional 

systems. Five of the 12 community wastewater collection systems feature 

interim WWTPs that, over time, are recommended for phasing into larger, 

regional systems.

Approximately $438 million in capital costs will be required to implement the 45 projects in the master plan. This amount refl ects the implementation of new service areas and the costs of upgrading existing facilities. 

The costs are based on the assumption that, other than those existing 

WWTPs that will continue to serve given isolated areas or existing functioning private wastewater utilities, all WWTPs will connect into either the 

central community or regional wastewater systems once all “hot spot” areas 

are served, or by 2010, whichever occurs fi rst.

42 Water Quality Assessment Report: Florida Keys
Monroe County Stormwater Management Master Plan

Monroe County is required by its adopted Year 2010 Comprehensive 

Plan to prepare a Stormwater Management Master Plan (SMMP). The 

purposes of the SMMP are to assess the adequacy of existing systems, 

 prioritize stormwater management needs for each island, identify regulations and policy needs, and develop a plan to fi nance the construction, 

operation, and maintenance of required facilities. The geographic area of 

this project consists of the islands in the Florida Keys that are traversed 

by U.S. 1.

Over the last 40 years, and especially in the last 10 years, the Florida 

Keys ecosystems have been of concern to governmental, scientifi c, and 

public interests. With the creation of John Pennekamp Coral Reef State 

Park in 1960, the unique environment of the Keys was confi rmed. Since 

that time, the deterioration of the nearshore and reef environment has 

been well documented, with the decline of corals, loss of seagrass beds, and 

increase in water pollution. While most studies have identifi ed wastewater 

impacts as the major controllable source of pollutants affecting the environment, stormwater runoff has also been identifi ed as a signifi cant source. 

One of the purposes of the SMMP is therefore to identify a plan to reduce 

the stormwater runoff component of pollution in the Keys.

The SMMP provides a number of benefi ts related to the goals and 

objectives of the plan. First, it provides retrofi t and rehabilitation projects 

for all of the identifi ed public problem areas in the Keys. These projects 

will address both fl ooding and water quality improvements. Second, the 

implementation of the SMMP will also improve maintenance activities for 

existing and future stormwater management facilities. Third, the SMMP 

recommends a number of programs that will minimize the runoff pollutant 

loading to nearshore waters from future developments and eventually will 

reduce the loads from existing sources.

Based on public input and the 2010 Comprehensive Plan, the recommended goals and objectives for the Monroe County SMMP are as follows:

Goal 1— The SMMP will identify, prioritize, and recommend remedial improvements for the signifi cant water quality–related 

problem areas in unincorporated areas of the county.

Goal 2— The SMMP will recommend actions that will reduce the 

sediment and nutrient loading of nearshore waters resulting 

from runoff. 

Goal 3— The SMMP will review existing regulatory requirements for 

the control of new development related to fl ooding and water 

quality, and will recommend improvements as needed. As 

a related issue, the SMMP will review existing enforcement 

activities and recommend changes necessary to improve 

compliance with existing or new regulations.

Goal 4— The SMMP will recommend activities to manage stormwater from future growth so that there will be no increase in 

sediment or nutrient loads to nearshore waters.

Water Quality Assessment Report: Florida Keys 43
Goal 5— The SMMP will strive to use nonstructural and source controls to reduce existing sediment and nutrient loads. When 

necessary, the SMMP will recommend structural controls 

associated with the publicly owned infrastructure.

In order to address the problems and concerns identifi ed and to achieve 

the objectives of the SMMP, the following actions are recommended:

• Monroe County should adopt a 95 percent treatment requirement and strictly enforce its application with new development and 

signifi cant redevelopment. The 95 percent treatment requirement 

means that new developments must remove 95 percent of the annual 

average load of pollutants from developed property. For the purposes 

of this plan, the 95 percent standard means 95 percent capture of the 

mean annual rainfall volume. 

• Monroe County should implement an operation and maintenance 

(O&M) program for public stormwater management systems and 

the inspection of private systems. The O&M program adopted by 

the county should include routine maintenance for critical stormwater systems as well as the routine inspection of other systems. 

Furthermore, private stormwater systems should receive proper maintenance with annual certifi cation by owners.

• Monroe County or the SFWMD should develop a stormwater well 

inventory. Runoff from both public and private properties is discharged into drainage wells. Unfortunately, very little is known 

about the location, tributary area, and land use draining to each well. 

While drainage wells provide signifi cant stormwater fl ood relief, 

the benefi ts and impacts on water quality are not well documented 

because of the lack of information.

• Monroe County and the SFWMD should enforce existing regulations through inspection and “as-built” drawings. The review of 

existing federal, state, regional, and local stormwater regulations 

confi rmed that there are suffi cient regulatory controls defi ned today. 

However, fi eld inspections verifi ed that many of the permitted 

systems were not built according to the permit and/or are not being 

maintained. County and water management district inspectors 

should also be trained in sediment and erosion control.

• Monroe County should pay special attention to marinas with respect 

to stormwater runoff.

• Many of the stormwater quality problem areas identifi ed in the 

Florida Keys were related to private marinas. Field inspections 

identifi ed major problems that were related to runoff from material 

storage areas, unpaved areas, and lack of stormwater controls prior 

to discharge. The county should encourage the state to continue the 

Clean Marina Program, and marina retrofi ts should be reviewed on a 

case-by-case basis to meet the 95 percent rule.

44 Water Quality Assessment Report: Florida Keys
• Monroe County should encourage redevelopment and retrofi t with 

reductions in impervious areas. Many of the existing stormwater 

problems occur because development has increased the imperviousness of the area. Increased imperviousness changes the volume, 

timing, peak fl ow, and pollutant content of stormwater runoff. The 

county should offer incentives for the reduction of impervious areas 

using vegetated and landscaped swales, rain gardens, biofi lters, and 

pervious pavement.

• Monroe County should encourage the use of vegetated buffers and 

conservation measures. Simple, yet powerful controls consist of 

vegetated buffers such as swales, rain gardens, biofi lters, and bioretention. Also, conserving water by using runoff for residential irrigation reduces the volume of runoff and limits the pollutant loading 

discharged. Conservation measures such as cisterns, rain barrels, and 

xeriscaping are particularly effective.

• Monroe County should require all vegetated systems such as swales 

and medians to be planted with native vegetation to minimize maintenance. Planting vegetated systems with native plants will preserve 

the beauty of the Florida Keys’ natural environment and minimize 

special maintenance. Public and private construction and development should be encouraged to use salt-tolerant plants near shoreline 

spray areas and other native plants away from the coastline.

• With the support of federal, state, and regional governments, Monroe 

County should implement the recommended retrofi t and rehabilitation projects to address existing problem areas. Twenty-two retrofi t 

and rehabilitation projects have been identifi ed to address problem 

areas in Monroe County. The projects include improvements to 

be implemented by the Department (Heritage Bike Trail), Florida 

Department of Transportation (DOT) (along U.S. 1), Monroe 

County, and city of Marathon.

• Where possible, DOT should include stormwater controls as part of 

all Florida Keys’ projects, including bridge entrances and exits. A 

review of existing designs and a fi eld survey of DOT systems showed 

that many areas have limited stormwater quality controls. Many of 

the bridge entrances and exits, especially in the Upper Keys, discharge uncontrolled stormwater that contains signifi cant sediment 

loads. Since the DOT stormwater system is the major (and in some 

areas, the only) stormwater control available, stormwater quality 

improvements will also result in improvements to nearshore waters.

City of Key West Sewage and Stormwater Management Systems 

The operation and maintenance of Key West’s WWTP and collection 

system is contracted to Operations Management International, Inc. (OMI). 

OMI employs 25 people at its Key West facility, which functions much like 

a city department. Wastewater is treated and pumped out into the ocean 

through an outfall dating back to 1954. The treatment plant, constructed 

in 1989, was designed and permitted to process sewage at a rate of 10 mgd. 

Water Quality Assessment Report: Florida Keys 45
Currently, average fl ows are approximately 4 mgd, a reduction from 

8 mgd 2 years ago. This reduction in fl ow indicates the success of the 

$56 million collection system rehabilitation. Seawater fl ow that previously 

entered the system and had to be unnecessarily pumped to the plant no 

longer occurs.

The city has spent more than $67 million over the past 3 years on 

sewer capital improvements to rebuild the collection system, replace the 

ocean outfall with a Class I deep injection well, and upgrade the current 

sewage treatment plant to an advanced wastewater treatment facility.

The stormwater management system is made up of a patchwork of 

minicollection systems constructed over 30 years ago. Much of the system 

was constructed using substandard materials and design. In addition, 

historically, the system was never properly cleaned or maintained. Water 

quality and fl ooding problems emerged over the years as a result of the 

inadequate, improperly maintained, and deteriorating system. Beach 

 closures, fl ood damage, and impassable roadways after rain events are 

 evidence that the system needed to be upgraded. 

To improve stormwater management, the city hired OMI in fi scal year 

(FY) 1995 to perform cleaning and spot repair. The operating budget was 

$193,977 for FY 2001. The entire collection system is cleaned 2.5 times 

per year, with hot spots being handled more frequently. 

In addition, a stormwater capital plan has been developed to prevent 

fl ooding, divert stormwater fl ow from outfalls, and reduce/eliminate the 

discharge of pollutants and the contamination of nearshore waters. The 

plan provides for a more comprehensive management system and includes 

the installation of 5 pump-assist injection wells, elimination and/or retrofi t 

of 63 outfalls, installation of 293 injection wells, and retrofi t of existing 

injection wells. Vertical French drains have already been designed and 

installed, addressing small areas of standing water in an affordable, costeffective way.

Agricultural Best Management Practices

The Florida Watershed Restoration Act authorizes the Florida Department of Agriculture and Consumer Services (DACS) to develop interim 

measures and agricultural best management practices (BMPs). Additional 

authority for agricultural BMPs is provided in legislation on nitrates and 

ground water (Section 576.045, F.S.), the Lake Okeechobee Protection Program (Section 373.4595, F.S.), Agricultural Water Conservation 

 (Section 570.085, F.S.), and Florida Right to Farm Act Amendments 

 (Section 823.14, F.S.). While BMPs are often adopted by rule, they are 

voluntary if not covered by regulatory programs. If they are adopted by 

rule and the Department verifi es their effectiveness, then implementation 

provides a presumption of compliance with water quality standards.

Over the last several years, DACS has worked with agriculturists, soil 

and water conservation entities, the University of Florida’s Institute of Food 

and Agricultural Sciences (IFAS), and other major interests to improve 

product marketability and operational effi ciency by implementing agricultural BMPs, while at the same time promoting water quality and water 

conservation objectives. In addition, programs have been established and 

46 Water Quality Assessment Report: Florida Keys
are being developed to create a network of state, local, federal, and private 

sources of funds for developing and implementing BMPs.

Manuals and Other Publications for Best Management Practices

Commercial agriculture in the Keys is very limited, but the manuals 

listed below might be applicable to some operations. Furthermore, the 

Department has also developed BMPs and other publications for nonagricultural systems that are possible sources of nonpoint source pollution. 

Many of these manuals can be downloaded at http://www.dep.state.fl .us/

water/nonpoint/pubs.htm. 

• Guide for Producing Container Grown Plants: This manual, 

published in 1995 by the Southern Nurserymen’s Association, 

includes irrigation and fertilization BMPs for the container cultivation of nursery plants. It was produced through a cooperative effort 

between the University of Florida, Auburn University, Tennessee 

Tech University, and Virginia Tech. Since the manual is not Florida 

specifi c, an effort is currently under way to use the document in 

developing a Florida-specifi c manual.

• Aquaculture Best Management Practices: As directed by the 

1998 Florida legislature, DACS worked cooperatively with industry, state agencies, and the environmental community to develop a 

comprehensive BMP manual for aquaculture. Florida law requires 

that the Department adopt the manual by rule and provides regulatory exemptions under Chapters 373 and 403, F.S., for growers who 

implement BMPs and are certifi ed by DACS’ Division of Aquaculture. The manual, which was printed and distributed in 2000, has 

been adopted by rule.

• Florida Green Industries Best Management Practices for Protection of Water Resources in Florida (Industrias En Áreas Verdes 

de Florida las Prácticas Más Adecuadas Para la Conservación 

del Agua en Florida): This manual, also available in Spanish, was 

developed jointly by the Florida Green Industries, the Department, 

DACS, DCA, the water management districts, and the University of 

Florida. Published in 2002, it provides information and guidance 

on turf grass and landscape management practices for the purpose of 

conserving and protecting Florida’s water resources. Practices cover 

the establishment of new turf and landscapes and the care of existing turf and landscapes, including construction activities, irrigation, 

nutrient management, and pest management. A smaller summary 

booklet is also available.

• A Guide on Hazardous Waste Management for Florida’s Agricultural Pesticide Users: This booklet, produced by the Department’s 

Hazardous Waste Compliance Assistance Program and the Florida 

Center for Solid and Hazardous Waste Management (1997 printing), 

offers tips on how to comply with federal and state hazardous waste 

regulations, how to avoid penalties by properly managing hazardous 

wastes, and how to save money on disposal costs by reducing 

 hazardous wastes.

Water Quality Assessment Report: Florida Keys 47
• Best Management Practices for Agrichemical Handling and 

Farm Equipment Maintenance: This 1998 document was a 

cooperative effort between state and federal agencies, the agricultural 

industry, and the land grant universities. The document discusses 

practices for pollution prevention on the farm. An educational, not a 

regulatory, document, it has been well received by the industry. The 

third printing in March 2000 brought the total printed to 50,000 

copies. It is the intent of the Department to have every farmer in 

the state read and use this document, which is available at no charge 

through the County Extension Service offi ces, Soil and Water 

Conservation District offi ces, Department offi ces, the Florida Farm 

Bureau, and several trade organizations.

• Best Management Practices for Enhancement of Environmental 

Quality on Florida Golf Courses: This 136-page book discusses 

possibilities for environmental stewardship and pollution prevention at golf courses. It supersedes and expands on the 1995 BMP 

document. This new document was written by the Department in 

2007, in coordination with the Florida Golf Course Superintendents 

Association, Audubon International, the University of Florida, and 

many others. It is designed for use by superintendents, managers, and 

employees; developers and designers; planners and regulators; and 

concerned citizens.

• Florida Yards and Neighborhoods Handbook—A Guide to 

Environmentally Friendly Landscaping: From the University of 

Florida’s IFAS, the handbook describes how to minimize nonpoint 

source pollution from landscapes, especially residential ones. The 

booklet is an integral part of the Florida Yards and Neighborhoods 

Program being implemented in parts of the state by the Cooperative 

Extension Service.

• Clean Boating Habits—Clean Boater: This 24-page Department handbook offers ideas that can have positive effects on water 

resources, ranging from fueling and boat-cleaning practices to exotic 

plant/sea life and fi sh waste management. It speaks to boaters about 

personal stewardship and the Clean Marina Program.

• A Big Difference for Boaters and Clean Water Is Florida’s Clean 

Vessel Act: A fourfold brochure, produced by the Department’s 

Division of Law Enforcement Clean Vessel Act Grant Program, that 

discusses the impacts of improper disposal of human sewage from 

boats and the regulations that apply to this issue. 

• Waterfront Property Owners Guide: A glossy color publication 

that provides homeowner tips on how to protect waterbodies and 

how to solve water quality problems.

• How to Judge Environmental Planning for Subdivisions: 

A Citizen’s Guide: The purpose of this booklet is to help 

 individuals not professionally trained to be able to evaluate land 

 development plans.

48 Water Quality Assessment Report: Florida Keys
Chapter 3: Surface Water Quality Assessment

Scope of the Assessment

This chapter presents the results of an updated assessment of surface 

water quality in the Florida Keys Basin. The primary purpose of the 

assessment is to determine if waterbodies or waterbody segments are to be 

placed on the Verifi ed List of impaired waterbodies. The listing will be 

in accordance with evaluation thresholds and data suffi ciency and data 

quality requirements in the Identifi cation of Impaired Surface Waters Rule 

(IWR) (Rule 62-303, Florida Administrative Code [F.A.C.]). The results 

of the assessment will be used to identify waters in the basin for which total 

 maximum daily loads (TMDLs) will be developed.

The chapter describes the planning units in the basin used as a basis 

for the assessment. A section on each planning unit contains a general 

description and summary of key water quality indicators (such as nutrients, chlorophyll a, dissolved oxygen [DO], and microbiological parameters). Permitted discharges, land uses, ecological status, and water quality 

improvement plans and projects are summarized for each planning unit. 

The discussion notes where applicable surface water quality criteria have 

been exceeded and summarizes the report’s fi ndings in maps, noting 

potentially impaired waterbodies in each planning unit. The chapter also 

contains background information on sources of data and on designated 

use attainment, and explains the state’s integrated water quality assessment 

process.

While potentially impaired waters and their causative pollutants are 

identifi ed, it is not within the scope of this report to identify discrete 

sources of potential impairments. Information on the sources of impairment will be developed in subsequent phases of the watershed management 

cycle, including TMDL development and implementation.

Appendix A contains a discussion of the legislative and regulatory 

background for TMDL development and implementation. Appendix B

provides additional information on reasonable assurance. Appendix C

provides the methodology used to develop the Planning and Verifi ed Lists. 

Appendix D contains the integrated water quality assessment (Master List) 

summary (Table D.1) and the water quality monitoring stations used in 

the assessment (Table D.2). Appendix E lists, by planning unit, permitted 

wastewater treatment facilities in the basin that discharge to surface water 

and ground water (Table E.1), as well as hazardous waste sites, landfi lls, 

and brownfi elds (Table E.2); Appendix F lists Level I land use by planning unit. The complete text of the IWR is available at http://www.dep 

.state.fl .us/legal/Rules/shared/62-303/62-303.pdf.

Water Quality Assessment Report: Florida Keys 49
Update on Strategic Monitoring and DataGathering Activities During Phase 2

During Phase 2 of the watershed management cycle, strategic monitoring and data-gathering activities focused fi rst on waters on the 1998 303(d) 

list, followed by waters that were placed on the Planning List through the 

IWR assessment alone. The majority of the strategic monitoring work was 

conducted by the Watershed Management and Restoration Section of the 

Florida Department of Environmental Protection’s (Department’s) South 

District, and included both chemical and biological monitoring and data 

upload to STOrage and RETrieval (STORET) databases.

Data-gathering activities included working with environmental monitoring staff in the South Florida Water Management District (SFWMD) 

and local and county governments to obtain applicable monitoring data 

from their routine monitoring programs and special water quality projects in the basin. The strategic monitoring focused on collecting data on 

nutrients, biological oxygen demand (BOD), chlorophyll a, metals, acute 

toxicity, bacteria, and dissolved oxygen in the nearshore waters and canals 

of the Florida Keys Basin.

There was one waterbody segment, Long Sound (waterbody identifi cation number [WBID] 6005), on the Planning List and the 1998 303(d) list 

requiring additional data to verify impairment. Parameters included DO, 

total nitrogen, total phosphorus, and BOD. 

Fifty-fi ve waterbody segments were verifi ed impaired for at least one 

parameter in the Florida Keys Basin as the result of strategic monitoring 

and data-gathering activities in Phase 2. Table D.1 in Appendix D provides the updated impairment status of the basin through June 30, 2006.

Based on preliminary data reviewed for the production of this Water 

Quality Assessment Report, the Department developed a plan to address 

potential data gaps. The Watershed Management and Restoration Section 

of the Department’s South District began a strategic monitoring program 

in 2005 to address TMDL Program data needs. The focus of this program 

is to collect additional data to verify conditions in many of the potentially 

impaired waterbody segments. An emphasis of this program is to collect 

data on nutrients, BOD, chlorophyll a, metals, acute toxicity, bacteria, and 

DO in the nearshore waters and canals of the Florida Keys Basin.

Sources of Data

The assessment of water quality in the Florida Keys Basin includes 

an analysis of quantitative data from various sources, some of which are 

 readily available to the public. These sources include the U.S. Environmental Protection Agency’s (EPA’s) Legacy and “new” STORET databases, 

the U.S. Geological Survey (USGS), and the Florida Department of Health 

(DOH). The STORET databases contain water quality data from a 

number of sources, including the Department, water management districts, local governments, and volunteer monitoring groups. Appendix C

contains a detailed description of STORET and the methodology used to 

develop the Planning and Verifi ed Lists, based on the IWR.

50 Water Quality Assessment Report: Florida Keys
Table 3.1 summarizes the individual data providers who contributed to 

the IWR Database for the Florida Keys Basin for the period of record used 

in this assessment. Figure 3.1 contains a pie chart showing the amount of 

Table 3.1: Summary of Data Providers in the Florida Keys Basin

Organization

Number of Water

Quality Observations,

1994–2006

U.S. Geological Survey 666

Florida Keys National Marine Sanctuary 40,328

Dade County Environmental Resource Management 80,393

Florida Department of Health 13,321

Florida Marine Research Institute 2,767

Florida Department of Environmental Protection’s 

South District

12,903

City of Key West 8,736

Nature Conservancy for the Florida Keys 8,307

South Florida Water Management District 239,722

Florida Keys Water Quality Monitoring Program 36,421

Total 443,564

Figure 3.1: Sources of Data for the Florida Keys Basin

Water Quality Observations by Agency, 1994–2006

Florida Keys 

National Marine 

Sanctuary

9.09%

Florida 

Department of 

Health

3.00%

Florida Marine 

Research 

Institute

.62%

Dade County 

Environmental 

Resource 

Management

18.12%

Florida Department 

of Environmental 

Protection’s South 

District

2.90%

City of Key West

1.96%

Nature 

Conservancy for 

the Florida Keys 

1.87%

U.S. 

Geological 

Survey

.15%

South Florida Water 

Management 

District

54.04%

Florida Keys 

Water Quality 

Monitoring 

Program

8.21%

Water Quality Assessment Report: Florida Keys 51
data provided by each source. Individual data providers who contributed to 

the IWR Database for the Florida Keys Basin during the period of record 

used in this assessment (January 1, 1999, to June 30, 2006) include the 

USGS, Florida Keys National Marine Sanctuary, Dade County Environmental Resource Management, DOH, Florida Marine Research Institute, 

Department’s South District, city of Key West, the Nature Conservancy of 

the Florida Keys, and SFWMD.

In 2002, the Department created the IWR Database to evaluate data 

in accordance with the methodology prescribed in the IWR (Rule 62-303, 

F.A.C.). For the Planning List assessment, the data evaluation period of 

record is 10 years, and for the Verifi ed List, 7.5 years. Table C.2 in Appendix C shows the periods of record for the Verifi ed and Planning Lists in the 

fi rst basin rotation cycle. Data collected between January 1, 1999, and June 

30, 2006, were evaluated to establish the Verifi ed List for the Florida Keys 

Basin (IWR Run 29z_2).

To support listing decisions, the evaluation of water quality in the basin 

also includes qualitative information drawn from data in technical reports 

and documents that are not yet included in the database. Some of these 

sources include historical water quality or ecological information that was 

not uploaded to the database because of its qualitative treatment of issues.

Attainment of Designated Use

While the designated uses of a given waterbody are established using 

the surface water quality classifi cation system described in Chapter 2, it 

is important to note that the EPA uses slightly different terminology in 

its description of designated uses. Because the Department is required to 

 provide use attainment status for both the state’s 305(b) report and the 

state’s 303(d) list of impaired waters, the Department uses EPA terminology when assessing waters for use attainment. The water quality evaluations and decision processes that are defi ned in Florida’s IWR for listing 

impaired waters are based on the following designated use attainment 

categories:

Aquatic Life Use Support-Based Attainment

Primary Contact and Recreation Attainment

Fish and Shellfi sh Consumption Attainment

Drinking Water Use Attainment

Protection of Human Health

Table 3.2 summarizes the designated uses assigned to Florida’s various 

surface water classes.

52 Water Quality Assessment Report: Florida Keys
Table 3.2: Designated Use Attainment Categories for Surface 

Waters in Florida

Designated Use Attainment Category Used in 

Impaired Surface Waters Rule Evaluation

Applicable Florida Surface 

Water Classification

Aquatic Life Use Support-Based Attainment Class I, II, and III

Primary Contact and Recreation Attainment Class I, II, and III

Fish and Shellfish Consumption Attainment Class II

Drinking Water Use Attainment Class I

Protection of Human Health Class I, II, and III

Integrated Report Categories and Assessment 

Overview

The EPA has requested that the states merge their reporting requirements under the Clean Water Act for Section 305(b) surface water quality 

reports and Section 303(d) lists of impaired waters into an Integrated Water 

Quality Monitoring and Assessment Report Guidance (Wayland, 2001). This 

Assessment Report integrates the 303(d) list and the 305(b) report for the 

Florida Keys Basin.

Following the EPA’s guidance, the Department delineated water bodies 

or waterbody segments in each of the state’s river basins, assessed them for 

impairment based on individual parameters, and then placed them into 

one of fi ve major assessment categories and subcategories. These categories 

provide information on a waterbody’s status based on water quality, suffi ciency of data, and the need for TMDL development (Table 3.3). This 

Assessment Report contains a comprehensive evaluation of waterbodies that 

fall into Integrated Report Categories 1 through 5 in the table.

Not enough recent data on chemistry, biology, and fi sh consumption 

advisories have been collected; therefore, currently only a few waterbodies 

or waterbody segments statewide fall into Category 1 (attaining all designated uses). In particular, fi sh tissues in many waterbodies statewide have 

not been tested for mercury. Out of 67 waterbodies or waterbody segments 

in the Florida Keys Basin, there are no waterbodies in Category 1 currently 

meeting all attainable designated uses.

More waterbodies and segments statewide fall into Category 2 

(attaining some uses but with insuffi cient data to assess completely) than 

 Category 1 (attaining all uses), because monitoring programs can sometimes provide suffi cient data for partially determining whether a designated 

use in a particular waterbody is attained. Four waterbody segments in the 

basin fall into Category 2.

Most waterbodies in the state, however, fall into Category 3 (having 

insuffi cient data). In the Florida Keys Basin, the breakdown of waterbodies 

or segments in Category 3 is as follows:

• Category 3a—No segments for which no data are available to determine their water quality status,

Understanding the 

Terms “Pollutant” 

and “Pollution”

For purposes of the TMDL 

Program, pollutants are 

chemical and biological 

constituents, introduced by 

humans into a waterbody, 

that may result in pollution 

(water quality impairment). 

There are other causes of 

pollution, such as the physical alteration of a waterbody 

(for example, canals, dams, 

and ditches). However, 

TMDLs are established only 

for impairments caused by 

pollutants (a TMDL quantifies 

how much of a given pollutant a waterbody can receive 

and still meet its designated 

uses).

Waterbodies that are verified impaired due to specified pollutants, and therefore 

require a TMDL, are listed 

under Category 5 in the Integrated Assessment Report; 

waterbodies with water 

quality impairments due to 

other causes, or unknown 

causes, are listed under Category 4c. Although TMDLs 

are not established for Category 4c waterbodies, these 

waterbodies still may be 

addressed through a watershed management program 

(for example, the Kissimmee 

River restoration).

Water Quality Assessment Report: Florida Keys 53
Table 3.3: Categories for Waterbodies or Waterbody Segments in the 2002 Integrated Report

Category Description Comments

1 Attaining all designated uses If use attainment is verified for a waterbody or segment that was previously listed as impaired, the Department will propose that it be delisted.

2 Attaining some designated uses 

and insufficient or no information 

or data are present to determine if 

remaining uses are attained

If attainment is verified for some designated uses of a waterbody or segment, the Department will propose partial delisting for the uses attained. 

Future monitoring will be recommended to determine if remaining uses 

are attained.

3a No data and information are 

 present to determine if any 

 designated use is attained

Future monitoring will be recommended to determine if designated uses 

are attained.

3b Some data and information are 

present but not enough to determine if any designated use is 

attained

Future monitoring will be recommended to gather sufficient information 

and data to determine if designated uses are attained.

3c Enough data and information are 

present to determine that one or 

more designated uses may not be 

attained according to the Planning 

List methodology

A waterbody or segment is potentially impaired for one or more 

 designated uses. These waters will be prioritized for future monitoring 

to verify use attainment or impaired status.

3d Enough data and information are 

present to determine that one or 

more designated uses are not attained according to the Verified 

List methodology

A waterbody or segment exceeds Verified List evaluation criteria and 

may be listed as impaired at the end of Phase 2 of the watershed management cycle. However, the data have not yet been fully evaluated and 

the waters have not been formally verified as impaired. Further monitoring and analysis may be necessary.

NOTE: This category is applicable only to the Status Report. Waters 

that pass the Verified List criteria at this stage of the process are placed 

in Category 5.

4a Impaired for one or more designated uses but does not require TMDL 

development because a TMDL has 

already been completed

After the EPA approves a TMDL for the impaired waterbody or segment, 

the TMDL will be included in a Basin Management Action Plan to reduce 

pollutant loading toward attainment of designated use(s).

4b Impaired for one or more designated uses but does not require TMDL 

development because the water 

will attain water quality standards 

due to existing or proposed 

measures

Pollutant control mechanisms designed to attain applicable water quality 

standards within a reasonable time frame are either proposed or in 

place.

4c Impaired for one or more designated uses but does not require TMDL 

development because impairment 

is not caused by a pollutant

This category includes waterbodies or segments that are impaired 

because of naturally occurring conditions or other causes of pollution. 

The impairment is not caused by specific pollutants. (See sidebar on 

previous page for a discussion of the difference between the terms 

 “pollutant” and “pollution.”)

5 One or more designated uses is 

not attained and a TMDL is 

required

Waterbodies or segments in this category are impaired for one or more 

designated uses by a pollutant or pollutants. Waters in this category are 

included on the basin-specific Verified List adopted by the Department’s 

Secretary as Florida’s impaired waters list and submitted to the EPA as 

Florida’s 303(d) list of impaired waters at the end of Phase 2.

54 Water Quality Assessment Report: Florida Keys
• Category 3b—3 segments with some data but not suffi cient data for 

making any determinations, and

• Category 3c—5 segments that are potentially impaired based on the 

Planning List criteria.

A number of waters either fail to meet water quality standards for DO 

or show signs of biological stress or nutrient impairment. According to the 

IWR, specifi c pollutants causing DO exceedances or biological stress, or 

an underlying nutrient imbalance creating an imbalance in fl ora or fauna, 

must be documented for a waterbody or segment to be listed as impaired. 

Sometimes these conditions cannot be linked to a causative pollutant, and 

sometimes they may refl ect natural background conditions.

Currently, no waterbody in the basin is designated as being in 

 Category 4. This category includes those waterbodies/segments that are 

impaired but do not require a TMDL for one of three reasons:

• Category 4a—No segments for which a TMDL has already been 

developed,

• Category 4b—No segments for which there is reasonable assurance 

that the designated use of an impaired waterbody will be attained by 

an existing or proposed pollutant control measure, and

• Category 4c—No segments for which the impairment is not attributable to a pollutant or pollutants, but is due to natural conditions or 

physical/hydrologic alterations to the waterbody.

Finally, 55 waterbodies in the basin are in Category 5. These impaired 

waterbodies are on the Verifi ed List of impaired waters adopted by the 

Department’s Secretary and will require TMDLs. Chapter 4 of this report 

discusses in detail the waters in this category.

Planning Units

The Florida Keys Basin encompasses approximately 133.7 square miles 

and a complex hydrologic system. To provide a more detailed geographic 

basis for identifying and assessing water quality improvement activities, the 

basin was subdivided into smaller areas called planning units. A planning unit is either an individual large tributary basin or a group of smaller 

adjacent tributary basins with similar characteristics. Planning units help 

organize information and management strategies around prominent watershed characteristics.

Water quality assessments were conducted for waterbody segments 

within planning units. Each of these smaller, hydrologically based drainage areas within a planning unit is assigned a unique WBID. Waterbody 

segments are assessment units (or geographic information system [GIS] 

polygons) that the Department used to defi ne waterbodies when it biennially inventoried and reported on water quality to the EPA under Section 

305(b) of the federal Clean Water Act. These WBIDs are the assessment 

Water Quality Assessment Report: Florida Keys 55
Table 3.4: Planning Units in the Florida Keys Basin

Planning Unit Description

Upper Keys Key Largo south to and including Lower Matecumbe Key

Middle Keys Long Key and southwestward to the end of the Seven Mile 

Bridge

Lower Keys All Keys south and west of the western end of the Seven 

Mile Bridge

units identifi ed in the Department’s lists of impaired waters submitted to 

the EPA in reports under Section 303(d) of the Clean Water Act.

The Florida Keys Basin contains three planning units: Upper Keys, 

Middle Keys, and Lower Keys. Table 3.4 describes these planning units, 

and Figure 3.2 shows their locations and boundaries. The remainder of 

this chapter provides a general description of each planning unit, information on land use and potential point sources of pollution, water quality 

assessments for individual waterbody segments, and summaries of ecological issues and watershed quality improvement plans and projects.

Appendix D of this report provides, by planning unit, a list of water 

quality monitoring stations, the integrated assessment (Master List) summary, and trend data. Appendix E includes summary information, by 

planning unit, for permitted wastewater treatment facilities, hazardous 

waste sites, permitted landfi ll facilities, and brownfi elds. Appendix F lists 

Level I land uses, by planning unit. 

Assessment by Planning Unit

• Upper Keys Planning Unit

General Description

The Upper Keys Planning Unit covers about 46.9 square miles of land 

and nearshore waters. It contains 18 segments (WBIDs) plus 5 additional 

open water coastal segments, for a total of 23 WBIDs. It includes Key 

Largo, Plantation Key, Pumpkin Key, Upper and Lower Matecumbe Key, 

and the open waters between these islands and the Florida mainland. 

Bodies of water in the planning unit include Manatee Bay, Barnes Sound, 

Long Sound, Little Blackwater Sound, Florida Bay, Blackwater Sound, 

Lake Surprise, Little Buttonwood Sound, Tarpon Basin, Buttonwood 

Sound, Largo Sound, and the Atlantic Ocean. Public parks include Everglades National Park (a small portion), John Pennekamp State Park, Harry 

Harris County Park, Anne’s Beach, Sea Oats Beach, and a number of other 

state preserves and historical sites. Named communities include the Ocean 

Reef Club, Key Largo, Newport, Rock Harbor, Tavernier, Plantation, and 

Islamorada.

Land uses are residential and commercial, mainly supporting various 

aspects of the tourism industry. Hotels, restaurants, shops, marinas, and 

dive centers support tourism directly, and commercial fi shing, boat repair, 

building construction and maintenance, vehicle maintenance, and similar 

businesses support both tourism and residents.

56 Water Quality Assessment Report: Florida Keys
Figure 3.2: Locations and Boundaries of Planning Units 

in the Florida Keys Basin

Water Quality Assessment Report: Florida Keys 57
Florida Bay, to the north of the Keys, is shallow and infl uenced by 

drainage from the eastern Everglades and various drainage projects in the 

Miami/Homestead area, including the SFWMD’s C-111 Canal. Large 

discharges of fresh water from this canal have caused extreme changes in 

salinity in northern Florida Bay. At other times, reduced freshwater fl ows 

have resulted in hypersaline (extremely salty) conditions. Both extremes 

kill seagrasses and other marine life.

The nearshore waters of the Upper Keys receive stormwater runoff and 

other discharges from the adjacent land. The porous nature of the Key 

Largo Limestone that forms the Upper and Middle Keys allows material 

spilled on the ground to pass fairly rapidly into the surrounding water, and 

because the islands are narrow, the water is never far away. 

The Atlantic Ocean south and east of the Upper Keys receives 

 discharges from shipping, such as bilge water, wastewater, oil leakage, or 

trash and garbage.

The Florida Keys Marine Sanctuary includes all of the Keys waters 

(except Dry Tortugas National Park). The sanctuary’s management plan 

allows it to coordinate water quality monitoring and regulate almost all 

on-water activities.

Water Quality Summary

The major water quality problems of the Upper Keys Planning Unit are 

pervasive elevated dissolved inorganic nitrogen and turbidity in the island 

nearshore waters as a result of Keys’ land-based activities (Boyer, 2005). 

Also of concern in the waters closer to the Florida peninsula are 

elevated nutrients and the effects of altered freshwater fl ows to Florida Bay 

from the mainland and Biscayne Bay. Episodes of very fresh and very salty 

water have caused massive die-offs of seagrasses in Florida Bay, which have 

resulted in long-term changes in turbidity, nutrient cycles, and the animal 

species in the open waters of the bay. 

Finally, there is the issue of mercury in fi sh. DOH recommends the 

limited consumption of snook, red drum, great barracuda, king mackerel 

33–39 inches, spotted seatrout greater than 20 inches, little tunny, cobia, 

greater amberjack, bluefi sh, crevalle jack, shark less than 43 inches, permit, 

and wahoo throughout the Keys, Florida Bay, and Biscayne Bay, due to the 

possibility of high levels of mercury. Currently, no consumption advisory 

exists for king mackerel greater than 39 inches and shark greater than 

43 inches.

Figure 3.3, a composite map of the planning unit, shows waters on the 

1998 303(d) list, the Planning List and Verifi ed List, and potential pollution sources. Table 3.5 summarizes the water quality assessment status of 

all waterbody segments in the planning unit.

Permitted Discharges and Land Uses

Point Sources. There are 147 permitted wastewater facilities in the 

Upper Keys Planning Unit, of which 139 are domestic waste facilities, 5 are 

industrial waste facilities, 2 are industrial stormwater discharges, and 1 is 

an underground injection control facility. Of these facilities, only 2 discharge to state surface waters, and those are the stormwater discharges. 

58 Water Quality Assessment Report: Florida Keys
Figure 3.3: Composite Map of the Upper Keys Planning Unit, Including the 1998 303(d) List, 

Planning List and Verified List Waters, and Potential Pollution Sources

Water Quality Assessment Report: Florida Keys 59
Table 3.5: Integrated Water Quality Assessment Summary for the Upper Keys Planning Unit

WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

6002 Manatee Bay Estuary IIIM Nutrients 

(Other)

Nutrients (Chlorophyll a), Turbidity, pH, Fecal 

Coliforms, DO

3c

6003 Barnes Sound Estuary IIIM Nutrients 

(Other)

Nutrients 

(Chlorophyll a), 

Turbidity, pH, 

Fecal Coliforms, 

DO, Arsenic

3c

6005 Long Sound Estuary IIIM DO Nutrients 

(Other)

Nutrients (Chlorophyll a), Turbidity, pH, DO

3c

6009 Plantation Key Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

Iron, pH, Fecal 

Coliforms, 

Cadmium, 

Lead, Nutrients 

(Chlorophyll a), 

Arsenic

5

6017 Upper 

Matecumbe 

Key

Coastal IIIM Nutrients 

(Other), DO, 

 Mercury in Fish

pH, Fecal 

Coliforms

5

6019 Lower 

Matecumbe 

Key

Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

5

8078 Florida Bay 

Gulf 2

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), pH, 

Zinc, Turbidity, 

DO, Lead, Arsenic, Cadmium, 

Copper 

5

8084 Lower 

Matecumbe 

Key Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Fecal Coliforms, 

Turbidity

5

8084A Sea Oats 

Beach

Beach IIIM 3b

8084B Anne’s Beach Beach IIIM Bacteria in 

Shellfish

2

8085 Plantation Key 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

60 Water Quality Assessment Report: Florida Keys
WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

8086 Rodriguez Key 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

8087 Key Largo 

Ocean 1

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

6005A Little 

Blackwater 

Sound

Estuary IIIM Nutrients 

(Other)

Nutrients (Chlorophyll a), DO, 

Turbidity, pH

3c

6005B Blackwater 

Sound

Estuary IIIM Nutrients 

(Other)

Nutrients (Chlorophyll a), DO, 

Turbidity, pH

3c

6005EB John 

Pennekamp 

State Park

Beach IIIM Bacteria (Beach 

Advisory)

5

6006A South Key 

Largo

Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

Nutrients 

(Chlorophyll a), 

Cadmium, Lead, 

pH, Zinc, Iron, 

Fecal Coliforms, 

Arsenic

5

6006B Middle Key 

Largo

Coastal IIIM Nutrients (Other), 

Mercury in Fish

5

6006C North Key 

Largo

Coastal IIIM Nutrients 

(Other), Copper, 

Mercury in Fish

Turbidity 5

8078A Harry Harris 

County Park

Beach IIIM Bacteria (Beach 

Advisory)

5

8078B Islamorada 

Library Beach

Beach IIIM Bacteria (Beach 

Advisory)

5

8078C Founder Beach IIIM Bacteria (Beach 

Advisory)

5

Notes:

1

The designation “stream” includes canals, rivers, and sloughs. The designation “lake” includes some marshes.

2The state’s surface water classifications are as follows:

Class I: Potable water supplies

Class II: Shellfish propagation or harvesting

Class III: Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife

Class IV: Agricultural water supplies

Class V: Navigation, utility, and industrial use (there are no state waters currently in this class) 3The EPA’s 305(b)/303(d) Integrated Report categories are as follows:

1—Attains all designated uses;

2—Attains some designated uses;

3a—No data and information are available to determine if any designated use is attained;

3b—Some data and information are available, but they are insufficient for determining if any designated use is attained;

3c—Meets Planning List criteria and is potentially impaired for one or more designated uses;

3d—Meets Verified List criteria and is potentially impaired for one or more designated uses;

Table 3.5 (continued)

Water Quality Assessment Report: Florida Keys 61
4a—Impaired for one or more designated uses and the TMDL is complete;

4b—Impaired for one or more designated uses, but no TMDL is required because an existing or proposed pollutant 

control mechanism provides reasonable assurance that the water will attain standards in the future; 

4c—Impaired for one or more designated uses but no TMDL is required because the impairment is not caused by a 

pollutant; and

5—Water quality standards are not attained and a TMDL is required. 4Parameters in bold meet the Verified List evaluation criteria, Section 62-303.400, F.A.C. 5Parameters in italics are in Category 4 (a, b, or c) waters that do not require TMDL development. 6The assessment categories listed in this column represent the status of each WBID as a whole, based on multiple parameters. 

The hierarchy for assigning these categories is Category 5, then 4, then 3c, then 2, and then 3b, i.e., each WBID is assigned a 

category based on the highest category assigned to an individual parameter. For example, if WBID 9999 has total coliforms as 

Category 5, fecal coliforms as Category 3c, and coliforms–shellfish as Category 2, the single assessment call for the WBID is 

Category 5.

DO = Dissolved oxygen

M = Marine

Table 3.5 (continued)

There are 2 inactive solid waste landfi lls in the planning unit. Solid waste 

is currently sent to the mainland for disposal. There are no hazardous 

waste sites, Superfund sites, state-funded waste cleanup sites, or delineated 

ground water contamination areas in the Upper Keys Planning Unit.

Figure 3.3 shows permitted wastewater treatment facilities and landfi lls in the planning unit (see Noteworthy for a defi nition of point sources). 

Appendix E lists the basin’s domestic and industrial surface discharge 

facilities, along with their permitted fl ows, by planning unit. It also lists 

landfi lls or solid waste facilities, by planning unit.

Nonpoint Sources. Based on Level I land use summary information from the SFWMD’s 1995 GIS data, the predominant land uses in the 

Upper Keys Planning Unit are wetlands (64.6 percent), urban and built-up 

(20 percent), and upland forest (10.6 percent). Of these land uses, only 

urban and built-up is associated with nonpoint discharges of pollutants and 

eroded sediments to waters of the state (see Noteworthy for a defi nition of 

nonpoint sources). Appendix F provides summary information on general 

land uses in the basin, by planning unit.

Ecological Summary

The coral reefs on the Atlantic side of the Upper Keys are well developed and well protected by the islands from the turbidity and fresh waters 

often found in Florida Bay, but these reefs are also the most visited and 

vulnerable to damage from direct human contact.

The Upper Keys contain much of the remaining tropical hardwood 

hammock habitat in the Keys and support several imperiled species, including the Schaus swallowtail butterfl y (Herclides aristodemus ponceanus), 

Key Largo woodrat (Neotoma fl oridana smalli), Key Largo cotton mouse 

(Peromyscus gossypinus allapaticola), and American crocodile (Crocodylus 

acutus) (see sidebar).

Currently ranging from Biscayne National Park to Key Largo and 

Lower Matecumbe Key, the Schaus swallowtail butterfl y is dwindling, with 

the population numbering fewer than 1,000 individuals. The primary 

reason for decline is the loss of habitat, use of insecticides, collection of 

Additional

Information

For more information on 

threatened and endangered 

species in the Florida Keys, 

see the Florida Fish and Wildlife Conservation Commission’s (FWC’s) List of Florida’s 

Endangered and Threatened 

Species and Species of 

Special Concern, available 

at http://www.flmnh.ufl 

.edu/fish/southflorida/coral/ 

endangeredkeys.html (scroll 

to the bottom of the page for 

the link).

62 Water Quality Assessment Report: Florida Keys
Point sources discharging 

pollutants to surface water or 

ground water originate from 

discrete, well-defined areas such 

as a facility discharge from the 

end of a pipe, a disposal well, or 

a wastewater sprayfield. Point 

sources generally fall into two 

major types: domestic wastewater sources (which consist of 

sewage from homes, businesses, 

and institutions) and industrial 

wastewater sources (which 

include wastewater, runoff, and 

leachate from industrial or commercial storage, handling, or 

processing facilities). Landfills, 

Rainfall generates stormwater 

runoff. As it flows over the land 

and through the ground, runoff 

may carry nonpoint source pollutants from many different sources 

to lakes, rivers, and estuaries in a 

watershed, and into ground water 

supplies. Nonpoint sources also 

Information on Point Sources in Planning Units

hazardous waste sites, dry cleaning solvent cleanup program 

sites, and petroleum facility 

 discharges are also considered 

point sources. These sites have 

the potential to leach contaminants into ground water and 

surface water.

Identifying the source of waterbody impairment is an important 

part of assessing water quality and developing TMDLs. As 

part of this report, information 

is presented on point sources, 

including permitted facilities 

that discharge wastewater and 

landfills.

Nonpoint Sources and Land Uses

include atmospheric deposition 

and leaching from agricultural 

lands, urban areas, and unvegetated lands. The pollutants in 

runoff often include fertilizers, 

bacteria, metals, sediments, and 

petroleum compounds.

Noteworthy 63 Water Quality Assessment Report: 

Florida Keys
the larvae, and extreme weather conditions. Recovery efforts for this 

endangered species include captive breeding programs to help restore the 

 population.

Tropical hardwood hammocks provide critical habitat for the Key 

Largo woodrat and the Key Largo cotton mouse. Both species originally 

ranged throughout Key Largo; as a result of habitat destruction, however, 

they are currently limited to the northern third of the island and listed as 

endangered species.

Water Quality Improvement Plans and Projects

As part of the Florida Keys Water Quality Improvements Program, the 

Key Largo Wastewater Board has a list of 14 projects, including providing 

community wastewater collection systems and advanced wastewater treatment to 3 residential areas currently served by septic tanks. The village of 

Islamorada has been issued a permit to construct a 0.1 million gallon per 

day (mgd) wastewater treatment plant (WWTP) and a collection system 

for Plantation Key Colony. Islamorada has started the construction of the 

collection system; however, the village would like to expand the service area 

to other neighborhoods surrounding Plantation Key Colony, and instead 

of constructing the permitted 0.1 mgd system, it is applying for an expansion. Islamorada also has a stormwater improvement plan consisting of 

63 projects.

Waters will not be placed on the Verifi ed List if the Department 

receives reasonable assurance that existing or proposed projects and/or 

 programs are expected to result in the attainment of water quality standards 

or consistently improve water quality over time. Appendix B contains 

more detailed documentation of the requirements for reasonable assurance.

At the time of the writing of this Assessment Report, the Department was in the process of establishing the terms of a reasonable assurance 

documentation for nutrients for the island-based WBIDs in this planning 

unit. The attainment of water quality is expected to be achieved through 

planned infrastructure improvements to the island’s wastewater and 

stormwater treatment systems consistent with Florida Law 99.395 or better. 

The Florida Keys Reasonable Assurance Document (FKRAD) is expected 

to be fi nalized and signed by its member stakeholders in the fall of 2008 

and hopefully be submitted for secretarial adoption soon thereafter. Once 

accepted and adopted by Secretarial Order, those WBIDs will be designated 

as Category 4b for nutrients.

• Middle Keys Planning Unit

General Description

The Middle Keys Planning Unit covers about 13.8 square miles of land 

and nearshore waters. It contains 9 segments (WBIDs) plus 6 additional 

open water coastal segments, for a total of 15 WBIDs. It includes Long, 

Duck, Crawl, Fat Deer, Grassy, Vaca, Boot, Pigeon, and Little Duck Keys, 

and extends south and west to the end of the Seven Mile Bridge.

The islands of the Middle Keys separate western Florida Bay to the 

north from the Atlantic Ocean and the Straits of Florida to the south. 

Parks include Long Key State Recreation Area and Curry Hammock. 

64 Water Quality Assessment Report: Florida Keys
Named communities include Layton, Marathon, Marathon Shores, and 

Key Colony Beach.

Land use in the planning unit is similar to that of the Upper Keys, 

mainly residential and commercial, with some supporting light industrial 

uses. Tourism development is not as intensive as in the Upper Keys, with 

more emphasis on fi shing than on diving and resorts.

Western Florida Bay and the Southwest Florida Shelf receive water 

from the southwest Florida mainland, including the western Everglades, 

which have less agricultural input than the eastern Everglades. It also 

receives fresh water from Shark River Slough and more western drainage 

projects, but these projects are not as large as those farther east. The water 

is more turbid and variable in temperature and salinity than ocean water, 

because the bay is shallow and soft-bottomed. The islands of the Middle 

Keys are farther apart than those of the Upper Keys, and so Florida Bay 

water readily fl ows through major tidal passes in the Middle Keys and 

reduces the growth of reef corals on the Atlantic side.

Activities on the adjacent land affect the nearshore waters. The 

limestone base of the islands is porous, and anything discharged on land 

quickly reaches the water. Poorly functioning septic tanks and cesspits 

are of particular concern, especially when they are near canals. There is 

serious potential for pollution of the canals themselves, and the canals can 

easily move pollution to natural waters. A two-year monitoring project 

in canals in the Little Venice Service Area near Marathon found high 

 bacteria counts, high nutrient concentrations, and low DO (Boyer and 

Jones, 2004).

Atlantic waters offshore can be affected by shipping and boating 

 discharges, and turbid waters transported from Florida Bay. 

Water Quality Summary

The major water quality concerns in the Middle Keys are nutrients and 

bacteria from stormwater and wastewater in nearshore waters, and nutrients and some salinity variations from western Florida Bay and the Florida 

Shelf. DOH recommends the limited consumption of snook, red drum, 

great barracuda, king mackerel 33–39 inches, spotted seatrout greater than 

20 inches, little tunny, cobia, greater amberjack, bluefi sh, crevalle jack, 

shark less than 43 inches, permit, and wahoo throughout the Keys, Florida 

Bay, and Biscayne Bay, due to the possibility of high levels of mercury. 

 Currently, no consumption advisory exists for king mackerel greater than 

39 inches and shark greater than 43 inches.

Figure 3.4, a composite map of the planning unit, shows waters on the 

1998 303(d) list, the Planning List and Verifi ed List, and potential pollution sources. Table 3.6 summarizes the water quality assessment status of 

all waterbody segments in the planning unit.

Permitted Discharges and Land Uses

Point Sources. There are 91 permitted wastewater facilities in the 

Middle Keys Planning Unit, of which 83 are domestic waste facilities, 

6 are industrial waste facilities, and 2 are industrial stormwater discharges. 

Of these facilities, 2 discharge to state surface waters, and those are the 

Water Quality Assessment Report: Florida Keys 65
Figure 3.4: Composite Map of the Middle Keys Planning Unit, Including the 1998 303(d) List, 

Planning List and Verified List Waters, and Potential Pollution Sources

66 Water Quality Assessment Report: Florida Keys
Table 3.6: Integrated Water Quality Assessment Summary for the Middle Keys Planning Unit

WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

6010 Long Key Coastal IIIM Nutrients 

(Other), DO, 

 Mercury in Fish

5

6016 Duck Key Coastal IIIM Nutrients 

(Other), DO, 

 Mercury in Fish

5

8071 Florida Keys 

Gulf

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Copper, pH, 

Zinc, Turbidity, 

Lead, Cadmium, 

Arsenic

5

8076 Florida Keys 

Gulf 3

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Fecal Coliforms, 

Turbidity

5

8077 Florida Bay 

Gulf 1

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity, pH, 

Arsenic

5

8081 Boat Key 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity, Fecal 

Coliforms

5

8082 Grassy Key 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity 

5

8083 Long Key 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity 

5

6011A Vaca Key Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

Nutrients (Chlorophyll a), Iron, 

pH, Lead, Cadmium, Arsenic, 

Fecal Coliforms 

5

6011B Key Colony Beach IIIM Nutrients (Other) 5

6011C Grassy Key Coastal IIIM DO Nutrients 

(Other), 

Mercury in Fish

Fecal Coliforms 5

8076A Veteran’s 

Beach

Beach IIIM Bacteria (Beach 

Advisory)

5

8077A Curry 

Hammock 

State Park

Beach IIIM Bacteria (Beach 

Advisory)

2

Water Quality Assessment Report: Florida Keys 67
WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

8081A Coco Plum 

Beach

Beach IIIM Bacteria (Beach 

Advisory)

5

8081B Sombrero 

Beach

Beach IIIM Bacteria (Beach 

Advisory)

2

Notes:

1

The designation “stream” includes canals, rivers, and sloughs. The designation “lake” includes some marshes.

2The state’s surface water classifications are as follows:

Class I: Potable water supplies

Class II: Shellfish propagation or harvesting

Class III: Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife

Class IV: Agricultural water supplies

Class V: Navigation, utility, and industrial use (there are no state waters currently in this class) 3The EPA’s 305(b)/303(d) Integrated Report categories are as follows:

1—Attains all designated uses;

2—Attains some designated uses;

3a—No data and information are available to determine if any designated use is attained;

3b—Some data and information are available, but they are insufficient for determining if any designated use is attained;

3c—Meets Planning List criteria and is potentially impaired for one or more designated uses;

3d—Meets Verified List criteria and is potentially impaired for one or more designated uses;

4a—Impaired for one or more designated uses and the TMDL is complete;

4b—Impaired for one or more designated uses, but no TMDL is required because an existing or proposed pollutant 

control mechanism provides reasonable assurance that the water will attain standards in the future; 

4c—Impaired for one or more designated uses but no TMDL is required because the impairment is not caused by a 

pollutant; and

5—Water quality standards are not attained and a TMDL is required. 4Parameters in bold meet the Verified List evaluation criteria, Section 62-303.400, F.A.C. 5Parameters in italics are in Category 4 (a, b, or c) waters that do not require TMDL development. 6The assessment categories listed in this column represent the status of each WBID as a whole, based on multiple parameters. 

The hierarchy for assigning these categories is Category 5, then 4, then 3c, then 2, and then 3b, i.e., each WBID is assigned a 

category based on the highest category assigned to an individual parameter. For example, if WBID 9999 has total coliforms as 

Category 5, fecal coliforms as Category 3c, and coliforms–shellfish as Category 2, the single assessment call for the WBID is 

Category 5.

DO = Dissolved oxygen

M = Marine

Table 3.6 (continued)

stormwater discharges. There are 2 solid waste landfi lls, 1 active and 

1 inactive; however, the solid waste is currently sent to the mainland for 

disposal. There are no hazardous waste sites, Superfund sites, state-funded 

waste cleanup sites, or delineated ground water contamination areas in the 

Middle Keys Planning Unit. 

Figure 3.4 shows permitted wastewater treatment facilities and landfi lls 

in the planning unit. Appendix E lists the basin’s domestic and industrial 

surface discharge facilities, along with their permitted fl ows, by planning 

unit. It also lists landfi lls or solid waste facilities, by planning unit.

Nonpoint Sources. Based on Level I land use summary information from the SFWMD’s 1995 GIS data, the predominant land uses in the 

Middle Keys Planning Unit are wetlands (47.8 percent), urban and built-up 

(36.4 percent), and transportation/communication/utilities (6.4 percent). 

The “urban and built-up” and “transportation/communication/utilities” 

68 Water Quality Assessment Report: Florida Keys
land use types are associated with nonpoint discharges of pollutants and 

eroded sediments to waters of the state. Appendix F provides summary 

information on general land uses in the basin, by planning unit.

The city of Marathon was designated as a regulated Phase 2 municipal separate storm sewer system (MS4) in accordance with Section 

62-624.800, F.A.C., on March 10, 2004, as a result of discharges of stormwater from the MS4 to an Outstanding Florida Water (OFW). The city’s 

Phase 2 MS4 permit (ID Number FLR0E129) was issued by the Department on April 18, 2005, and will expire on April 17, 2010.

Ecological Summary

The islands of the Middle Keys are farther apart than those of the 

Upper Keys, and so Florida Bay water readily fl ows through the major tidal 

passes. As this water can be more turbid, coral reefs are either absent or 

poorly developed on the Atlantic side off the Middle Keys. The Middle 

Keys Planning Unit contains extensive grass beds and hard-bottom communities that support both sport and commercial fi sheries.

There are no endangered species particularly associated with the 

Middle Keys, but bald eagles (Haliaeetus leucocephalus), manatees 

(Trichechus manatus), and various sea turtles live in the area (see sidebar).

Water Quality Improvement Plans and Projects

The Florida Keys Water Quality Improvements Program is the primary 

plan for improving the treatment of wastewater and stormwater in the 

Keys. Several components of the program apply to the Middle Keys 

 Planning Unit.

The Monroe County Master Plan covers the entire developed area 

of the Keys, except the cities of Key West and Key Colony Beach. In 

the Middle Keys, two new community wastewater systems and one new 

regional system are recommended. Other than Duck Key, Conch Key, and 

Long Key/Layton, all areas of the Middle Keys will continue to operate 

and upgrade their treatment process to meet the best available technology/

advanced wastewater treatment (BAT/AWT) standard by July 1, 2010. 

These systems include the following:

• Hawk’s Cay (Hawk’s Cay portion of AWT upgrade),

• West End Long Key (three facilities), and

• East End Long Key (two facilities).

The city of Marathon has a seven-project plan for the phased expansion of collection systems and the construction of two AWT plants. The 

Little Venice water quality monitoring project was intended to document 

water quality changes in the fi rst area to receive central sewer connections 

(Boyer, Jones, and Mir-Gonzalez, 2004). The city of Layton plans to connect Long Key Estates and the area around U.S. 1 to a small AWT plant. 

The city of Key Colony Beach plans to rehabilitate its sanitary sewer system 

by relining leaking pipes and reducing infi ltration.

Waters will not be placed on the Verifi ed List if the Department 

receives reasonable assurance that existing or proposed projects and/or 

Additional 

Information

For more information on 

threatened and endangered 

species in the Florida Keys, 

see the FWC’s List of Florida’s 

Endangered and Threatened Species and Species 

of Special Concern, available at http://www.flmnh.ufl 

.edu/fish/southflorida/coral/ 

endangeredkeys.html (scroll 

to the bottom of the page for 

the link).

Water Quality Assessment Report: Florida Keys 69
 programs are expected to result in the attainment of water quality standards 

or consistently improve water quality over time. Appendix B contains 

more detailed documentation of the requirements for reasonable assurance).

At the time of the writing of this Assessment Report, the Department was in the process of establishing the terms of a reasonable assurance 

documentation for nutrients for the island-based WBIDs in this planning 

unit. The attainment of water quality is expected to be achieved through 

planned infrastructure improvements to the island’s wastewater and stormwater treatment systems consistent with Florida Law 99.395 or better. The 

FKRAD is expected to be fi nalized and signed by its member stake holders 

in the fall of 2008 and hopefully be submitted for secretarial adoption soon 

thereafter. Once accepted and adopted by Secretarial Order, those WBIDs 

will be designated as Category 4b for nutrients.

• Lower Keys Planning Unit

General Description

The Lower Keys Planning Unit covers about 73 square miles of land 

and nearshore waters. It contains 23 segments (WBIDs) plus 6 additional 

open water coastal segments, for a total of 29 WBIDs. It includes all the 

islands south and west of the west end of the Seven Mile Bridge, including Bahia Honda, Big Pine, Big Torch, Ramrod, Summerland, Cudjoe, 

Sugarloaf, Saddlebunch, and Boca Chica Keys; Key West; the Marquesas 

Keys; and the Dry Tortugas. The Lower Keys extend west of Florida Bay 

into the Gulf of Mexico proper to the north, and the Straits of Florida to 

the south. Parks and protected areas include Great White Heron National 

Wildlife Refuge, Dry Tortugas National Park, Key West National Wildlife Refuge, Looe Key National Marine Sanctuary, Coupon Bight Aquatic 

Preserve, the Coupon Bight/Key Deer Conservation and Recreation Lands 

Project, National Key Deer Refuge, and Bahia Honda State Park. Named 

communities include Big Pine, Pirates Cove, Sugarloaf Shores, and the city 

of Key West.

Land uses in the Lower Keys are mainly residential and commercial. 

Tourism is the primary business, but commercial fi shing is also important, 

as are the construction industry and marine services. The U.S. military 

also has a large presence in the Lower Keys, with the U.S. Naval Air 

Facility–Key West, which is actually located on Boca Chica Key, 5 miles 

east northeast of the city of Key West. Initially designated a Naval Air 

 Station, the facility was realigned as a Naval Air Facility (NAF) on September 1, 2001. The airfi eld, which consists of 3 asphalt runways, is the Navy’s 

premier pilot-training facility for transient tactical aviation squadrons. The 

NAF’s population consists of 1,650 active-duty members, 2,507 family 

members, 35 reservists, and 1,312 civilians.

The Lower Keys have more land area than the Upper and Middle Keys, 

and a larger percentage of that area is not developed at present. The geological foundation of the Lower Keys differs from that of the other keys. From 

Big Pine Key west, the islands are formed of Miami Oolite, an ancient 

sandbar material. The shape of the islands also changes from narrow strips 

parallel to the Florida Straits, to wider islands perpendicular to the Florida 

Straits, with fairly narrow channels between them.

70 Water Quality Assessment Report: Florida Keys
The open Gulf and Atlantic waters around the Lower Keys are infl uenced by mainland runoff from the Shark River Slough and the Peace, 

Caloosahatchee, and Mississippi Rivers through Loop Current transport 

and advection down the South Florida Shelf (Boyer, 2005). Discharges 

and runoff from adjacent land uses infl uence the nearshore waters.

Water Quality Summary

The nearshore waters of the Lower Keys are mainly affected by stormwater and wastewater from adjacent land uses, and canals and boat basins 

can act as nutrient traps and impair the water quality of nearby natural 

waters. Problems such as seagrass die-offs in Florida Bay can also cause 

increased turbidity on the north side of the Lower Keys.

The waters of the Lower Keys are farther from the Florida mainland 

and less infl uenced by direct mainland runoff than the Upper and Middle 

Keys, but longshore drift over the Southwest Florida Shelf, the Loop 

 Current in the Gulf of Mexico, and the Florida Current can bring problems 

such as oil discharges or red tide from distant sources.

DOH recommends the limited consumption of snook, red drum, 

great barracuda, king mackerel 33–39 inches, spotted seatrout greater than 

20 inches, little tunny, cobia, greater amberjack, bluefi sh, crevalle jack, 

shark less than 43 inches, permit, and wahoo throughout the Keys, Florida 

Bay, and Biscayne Bay, due to the possibility of high levels of mercury. 

Currently, no consumption advisory exists for king mackerel greater than 

39 inches and shark greater than 43 inches.

Figure 3.5, a composite map of the planning unit, shows waters on the 

1998 303(d) list, the Planning List and Verifi ed List, and potential pollution sources. Table 3.7 summarizes the water quality assessment status of 

all waterbody segments in the planning unit.

Permitted Discharges and Land Uses

Point Sources. There are 57 permitted wastewater facilities in the 

Lower Keys Planning Unit, of which 51 are domestic waste facilities, 5 are 

industrial waste facilities, and 1 is an industrial stormwater discharge. 

Three of these facilities discharge to state surface waters: 1 domestic waste 

facility, 1 industrial waste facility, and 1 stormwater discharge. There are 

4 landfi lls in the planning unit, 2 active and 2 inactive; however, solid 

waste is currently sent to the mainland for disposal. There are no hazardous waste sites, Superfund sites, state-funded waste cleanup sites, or delineated ground water contamination areas in the Lower Keys Planning Unit.

Figure 3.5 shows permitted wastewater treatment facilities and 

landfi lls in the planning unit. Appendix E lists the basin’s domestic 

and industrial surface discharge facilities, along with their permitted 

fl ows, by planning unit. It also lists landfi lls or solid waste facilities, by 

 planning unit.

Nonpoint Sources. Based on Level I land use summary information from SFWMD’s 1995 GIS data, the predominant land use in the 

Lower Keys Planning Unit is wetlands (64.6 percent), urban and built-up 

(22.4 percent), and upland forest (9.2 percent). Urban and built-up 

land use is associated with nonpoint discharges of pollutants and eroded 

Water Quality Assessment Report: Florida Keys 71
Figure 3.5: Composite Map of the Lower Keys Planning Unit, Including the 1998 303(d) List, Planning 

List and Verified List Waters, and Potential Pollution Sources

72 Water Quality Assessment Report: Florida Keys
Table 3.7: Integrated Water Quality Assessment Summary for the Lower Keys Planning Unit

WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

6018 Bahia Honda 

State Park

Coastal IIIM Nutrients 

(Other), 

Mercury in Fish

Fecal Coliforms 5

8072 Dry Tortugas 

Gulf

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

8073 Key West Gulf Coastal IIIM Mercury in Fish, 

Fecal Coliforms

Nutrients (Chlorophyll a), DO, 

Turbidity

5

8074 Florida Keys 

Gulf 1

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

8075 Florida Keys 

Gulf 2

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity, pH

5

8079 NAS Key West 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity

5

8080 Newfound 

Harbor Keys 

Ocean

Coastal IIIM Mercury in Fish Nutrients (Chlorophyll a), DO, 

Turbidity, Fecal 

Coliforms

5

6012A Big Pine Key Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

Iron, Zinc, Lead, 

Cadmium, pH, 

Arsenic, Fecal 

Coliforms

5

6012B Bahia Honda 

Bayside

Beach IIIM Nutrients 

(Other)

Bacteria (Beach 

Advisory)

5

6012C No Name Key Coastal IIIM Nutrients (Other), 

Mercury in Fish

5

6012D Long Beach Coastal IIIM Nutrients (Other), 

Mercury in Fish

5

6012E Big Torch Key Coastal IIIM Mercury in Fish 5

6013A Saddlebunch 

Keys

Coastal IIIM Nutrients 

(Other), DO, 

 Mercury in Fish

5

6013B Sugarloaf Coastal IIIM Nutrients (Other), 

Mercury in Fish

5

6013C Cudjoe Key Coastal IIIM Nutrients 

(Other), DO, 

Copper, 

Mercury in Fish

Nutrients (Chlorophyll a), Fecal 

Coliforms, pH

5

Water Quality Assessment Report: Florida Keys 73
WBID

Waterbody 

 Segment

Waterbody 

Type1 Class2

1998 

303(d) List 

 Parameters of 

Concern

Data Evaluation under the Impaired Surface Waters Rule Criteria3

Potentially 

Impaired (Cat. 

3c) for Listed 

Parameters

Verified Impaired4

(Cat. 4a, 4b, 4c, 

or 5) for Listed 

 Parameters5

Not Impaired 

(Cat. 2)

for Listed 

 Parameters

EPA’s 305(b)/303(d) 

Integrated Report 

Assessment 

 Category for WBID6

6013D Little 

Knockemdown 

Key

Coastal IIIM Nutrients (Other), 

Mercury in Fish

5

6014A Key West Coastal IIIM Nutrients (Other), 

Fecal Coliforms, 

Copper, Mercury 

in Fish

Nutrients (Chlorophyll a), DO, 

Iron, pH, Turbidity, Zinc, Lead, 

Arsenic

5

6014B Stock Island Coastal IIIM Nutrients 

(Other), Copper, 

Mercury in Fish 

DO, pH 5

6014C U.S. Naval Air 

Station Key 

West

Coastal IIIM Nutrients 

(Other), DO, 

Mercury in Fish

5

8073A N. Roosevelt/

Cow Key (KW)

Beach IIIM 3b

8073B Kennedy 

Dr and N. 

Roosevelt (KW)

Beach IIIM 3b

8073C Simonton 

Street Beach 

(KW)

Beach IIIM Bacteria (Beach 

Advisory)

5

8073D Ft. Zachary 

Taylor State 

Park

Beach IIIM Bacteria (Beach 

Advisory)

2

8073E South Beach 

(KW)

Beach IIIM Bacteria (Beach 

Advisory)

5

8073F Higgs Beach Beach IIIM Bacteria (Beach 

Advisory)

5

8073G Rest Beach 

(KW)

Beach IIIM Bacteria (Beach 

Advisory)

5

8073H Smathers 

Beach

Beach IIIM Bacteria (Beach 

Advisory)

5

8080A Bahia Honda 

Sandspur

Beach IIIM Bacteria (Beach 

Advisory)

5

8080B Bahia Honda 

Oceanside

Beach IIIM Bacteria (Beach 

Advisory)

5

Notes:

1

The designation “stream” includes canals, rivers, and sloughs. The designation “lake” includes some marshes.

2The state’s surface water classifications are as follows:

Class I: Potable water supplies

Class II: Shellfish propagation or harvesting

Class III: Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife

Class IV: Agricultural water supplies

Class V: Navigation, utility, and industrial use (there are no state waters currently in this class)

Table 3.7 (continued)

74 Water Quality Assessment Report: Florida Keys
3The EPA’s 305(b)/303(d) Integrated Report categories are as follows:

1—Attains all designated uses;

2—Attains some designated uses;

3a—No data and information are available to determine if any designated use is attained;

3b—Some data and information are available, but they are insufficient for determining if any designated use is attained;

3c—Meets Planning List criteria and is potentially impaired for one or more designated uses;

3d—Meets Verified List criteria and is potentially impaired for one or more designated uses;

4a—Impaired for one or more designated uses and the TMDL is complete;

4b—Impaired for one or more designated uses, but no TMDL is required because an existing or proposed pollutant 

control mechanism provides reasonable assurance that the water will attain standards in the future; 

4c—Impaired for one or more designated uses but no TMDL is required because the impairment is not caused by a 

pollutant; and

5—Water quality standards are not attained and a TMDL is required. 4Parameters in bold meet the Verified List evaluation criteria, Section 62-303.400, F.A.C. 5Parameters in italics are in Category 4 (a, b, or c) waters that do not require TMDL development. 6The assessment categories listed in this column represent the status of each WBID as a whole, based on multiple parameters. 

The hierarchy for assigning these categories is Category 5, then 4, then 3c, then 2, and then 3b, i.e., each WBID is assigned a 

category based on the highest category assigned to an individual parameter. For example, if WBID 9999 has total coliforms as 

Category 5, fecal coliforms as Category 3c, and coliforms–shellfish as Category 2, the single assessment call for the WBID is 

Category 5.

DO = Dissolved oxygen

M = Marine

Table 3.7 (continued)

 sediments to waters of the state. Appendix F provides summary information on general land uses in the basin, by planning unit.

The city of Key West was designated as a regulated Phase 2 MS4 

system in accordance with Section 62-624.800, F.A.C., on January 15, 

2004, as a result of discharges of stormwater from the MS4 to an OFW. 

The city’s Phase 2 MS4 permit (ID Number FLR0E128) was issued by the 

Department on February 2, 2005, and will expire on February 1, 2010.

Ecological Summary

Due to the isolation of the Lower Keys and their relatively large land 

area, the coral reefs on the Atlantic side of the islands are well developed, 

as they are protected from the turbidity and variable salinities of Florida 

Bay. The Lower Keys also support a number of indigenous species that are 

found nowhere else, but because their populations were always fairly small, 

habitat loss and human interference have threatened many of these species 

with extinction (see sidebar).

Habitat used by the endangered Key deer (Odocoileus virginianus 

clavium) includes pinelands, hardwood hammocks, and mangrove swamps. 

Pinelands, hardwood hammocks, and other upland dry areas are used for 

feeding activities, while mangrove swamps are used for shelter from the 

heat during the day. Two-thirds of the Key deer population inhabits Big 

Pine Key and No Name Key. The remaining deer reside in Big Torch, 

Cudjoe, Howe, Little Pine, Little Torch, Middle Torch, Sugarloaf, and 

Summerland Keys. The islands located farther south lack a permanent 

supply of fresh water required by Key deer for survival. The current Key 

deer population is estimated at around 300, up from the 1955 estimate of 

25 to 80.

Additional 

Information

For more information on 

threatened and endangered 

species in the Florida Keys, 

see the FWC’s List of Florida’s Endangered and Threatened Species and Species 

of Special Concern, available at http://www.flmnh.ufl 

.edu/fish/southflorida/coral/ 

endangeredkeys.html (scroll 

to the bottom of the page for 

the link).

Water Quality Assessment Report: Florida Keys 75
The Lower Keys marsh rabbit (Sylvilagus palustris hefneri) lives in 

coastal prairies and freshwater marshes of the Lower Keys. These habitats 

are rapidly disappearing due to development in the Lower Keys, placing 

this endangered species under the threat of extinction.

There are many other threatened and endangered species in the Florida 

Keys, including the Stock Island tree snail (Orthalicus rees), southern bald 

eagle (Haliaeetus leucocephalus), and roseate tern (Sterna dougalli).

Water Quality Improvement Plans and Projects

Monroe County Sanitary Wastewater Master Plan. The Monroe 

County Master Plan covers the entire developed area of the Keys, except the 

cities of Key West and Key Colony Beach. Four new community wastewater systems and two new regional wastewater systems are recommended 

for construction on Big Pine Key and Boca Chica/Big Coppitt Key. The 

two proposed regional systems in the Lower Keys are relatively small in 

terms of both volume of fl ow and area, and thus the fi rst phase of these 

WWTPs can be constructed at the actual regional WWTP site.

In addition to the new systems or the extension of existing systems, the 

master plan recommends that seven existing facilities in the Lower Keys 

continue to operate and upgrade their treatment processes to meet the 

BAT/AWT standard by July 1, 2010.

City of Key West Sewage Treatment Plant and Collection System. 

The operation and maintenance of Key West’s WWTP and collection 

system is contracted to Operations Management International, Inc. (OMI). 

OMI employs 25 people at its Key West facility, which functions much like 

a city department. 

Currently, average fl ows are approximately 4 mgd, a reduction from 

8 mgd 2 years ago. This reduction in fl ow indicates the success of the 

$56 million collection system rehabilitation. The seawater infl ows that 

previously entered the system and had to be unnecessarily pumped to the 

plant no longer occur.

The city has spent more than $67 million on sewer capital improvements to rebuild the collection system, replace the ocean outfall with a 

Class V deep injection well (built to Class I standards), and upgrade the 

WWTP to an AWT facility. An ocean outfall remains only as an emergency backup disposal system and has not been used since the deep well 

was placed into operation several years ago. Also, the ocean outfall will 

be completely phased out by 2006, as a second deep injection well will be 

constructed to provide an emergency backup.

City of Key West Stormwater Management System. The stormwater management system is made up of a patchwork of minicollection 

systems built over 30 years ago. Much of the system was constructed using 

substandard materials and design. In addition, historically, the system 

was never properly cleaned or maintained. Water quality and fl ooding 

problems emerged over the years as a result of the inadequate, improperly 

maintained, and deteriorating system. Beach closures, fl ood damage, and 

impassable roadways after rain events are evidence that the system needs to 

be upgraded.

76 Water Quality Assessment Report: Florida Keys
To improve stormwater management, the city hired OMI in fi scal year 

(FY) 1995 to perform cleaning and spot repair. The operating budget was 

$193,977 for FY 2001. The entire collection system is cleaned 2.5 times 

per year, with hot spots being handled more frequently. 

In addition, a stormwater capital plan has been developed to prevent 

fl ooding, divert stormwater fl ow from outfalls, and reduce/eliminate the 

discharge of pollutants and the contamination of nearshore waters. The 

plan provides for a more comprehensive management system and includes 

the installation of 5 pump-assist injection wells, elimination and/or retrofi t 

of 63 outfalls, installation of 293 injection wells, and retrofi t of existing 

injection wells. Vertical French drains have already been designed and 

installed, addressing small areas of standing water in an affordable, costeffective way.

Waters will not be placed on the Verifi ed List if the Department 

receives reasonable assurance that existing or proposed projects and/

or programs are expected to result in the attainment of water quality 

standards or consistently improve water quality over time. Appendix B

contains more detailed documentation of the requirements for 

 reasonable assurance.

At the time of the writing of this Assessment Report, the Department was in the process of establishing the terms of a reasonable assurance 

documentation for nutrients for the island-based WBIDs in this planning 

unit. The attainment of water quality is expected to be achieved through 

planned infrastructure improvements to the island’s wastewater and stormwater treatment systems consistent with Florida Law 99.395 or better. The 

FKRAD is expected to be fi nalized and signed by its member stake holders 

in the fall of 2008 and hopefully be submitted for secretarial adoption soon 

thereafter. Once accepted and adopted by Secretarial Order, those WBIDs 

will be designated as Category 4b for nutrients.

Water Quality Assessment Report: Florida Keys 77

Chapter 4: The Verified List of Impaired 

Waters

Public Participation

The Florida Department of Environmental Protection (Department) 

has worked with a variety of stakeholders and held public meetings on 

developing and adopting the Verifi ed Lists of impaired waters for the fi ve 

Group 5 basins across the state. Table 4.1 lists the statewide schedule for 

the development and adoption of the Group 5 Verifi ed Lists, including the 

public meetings. The schedule for the Florida Keys Basin is highlighted in 

boldface type. Appendix G contains documentation provided during the 

public comment period.

Basin-specifi c draft Verifi ed Lists of waters that met the requirements of 

the Impaired Surface Waters Rule (IWR) were made available to the public. 

The lists were placed on the Department’s Total Maximum Daily Load 

(TMDL) Web site, at http://www.dep.state.fl .us/water/tmdl, and were also 

sent on request to interested parties by mail or e-mail.

Citizens were given the opportunity to comment on the draft lists in 

person and/or in writing. A total of 7 public meetings were held across 

the state, to encourage public participation on a basin-by-basin basis. The 

Department also accepted written comments for 45 days.

Following the public meetings for the Group 5 basins, revised draft 

lists were made available to the public. The public had the opportunity 

to comment on these revised lists either in writing and/or at a fi nal public 

meeting in Tallahassee. Comments on any of the lists were accepted and 

considered throughout the full comment period.

The fi nal basin-specifi c Verifi ed Lists developed through the public 

participation process were adopted by Secretarial Order, and were submitted to the U.S. Environmental Protection Agency (EPA) as the state’s 

 current 303(d) list of impaired waters.

Identification of Impaired Waters

As discussed in Chapter 2, waters on the Verifi ed and Planning Lists 

must meet specifi c thresholds and data suffi ciency and data quality requirements in the IWR (Rule 62-303, Florida Administrative Code [F.A.C.]). 

Appendix A describes the legislative and regulatory background for the 

development of the Planning and Verifi ed Lists. Appendix C contains a 

methodology that describes the criteria and thresholds required for both 

lists under the IWR.

Any waters that do not have suffi cient data to be analyzed in accordance with the requirements of the IWR will remain on the 1998 303(d) 

list of impaired waters maintained by the EPA. These waters are not 

Water Quality Assessment Report: Florida Keys 79
Table 4.1: Schedule for Development and Adoption of the Group 5 Verified Lists

Date Scheduled Activity

July 20, 2006 Publication of Draft Verified Lists for the Group 5 Basins and Beginning of Public 

Comment Period

August 2, 2006 Public Meeting at University of West Florida on the Perdido River and Bay Basin

July 27, 2006 Public Meeting at Edgewater Library on the Northeast Coast Lagoons Basin

July 28, 2006 Public Meeting at St. Johns County Main Library on the Indian River Lagoon Basin

August 15, 2006 Public Meeting at Southwest Florida Water Management District on the Springs 

Coast Basin

August 18, 2006 Public Meeting in Marathon, Florida, on the Florida Keys Basin

August 17, 2006 Public Meeting at Everglades Research and Education Center on the Everglades Basin

October 3, 2007 Public Meeting in Tallahassee on Revised Draft Verified Lists for All Basins, and 

Public Comments and Input from Prior Public Meetings

October 22, 2007 Final Deadline for Receiving Public Comments

Spring 2008 Adoption of Verified List by Secretarial Order and Submittal to EPA as State’s 

303(d) List of Impaired Waters

delisted, and they will be sampled during the next phases of the watershed 

management cycle so that their impairment status can be verifi ed.

Documentation of Reasonable Assurance

Under the Florida Watershed Restoration Act, the Department will 

not place impaired waters on the Verifi ed List if reasonable assurance is 

provided that these waters will attain water quality standards in the future 

and will make reasonable progress toward attaining water quality standards 

by the time the next 303(d) list of impaired waters is scheduled to be 

submitted to the EPA. Reasonable assurance can be provided if existing or 

proposed technology-based effl uent limitations and other pollution control 

programs under local, state, or federal authority are expected to result in 

the attainment of water quality standards. Examples include Surface Water 

Improvement and Management Program restoration projects that provide 

ongoing monitoring, and permitted facilities that upgrade to advanced 

treatment or remove discharges to surface waters. Table 4.2 lists the major 

elements of reasonable assurance, and Appendix B provides additional 

information.

At the time of the writing of this Assessment Report, the Department was in the process of establishing the terms of a reasonable assurance 

documentation for nutrients for the island-based WBIDs in this planning 

unit. The attainment of water quality is expected to be achieved through 

planned infrastructure improvements to the island’s wastewater and 

stormwater treatment systems consistent with Florida Law 99.395 or better. 

The Florida Keys Reasonable Assurance Document (FKRAD) is expected 

to be fi nalized and signed by its member stakeholders in the fall of 2008 

and hopefully be submitted for secretarial adoption soon thereafter. Once 

80 Water Quality Assessment Report: Florida Keys
Table 4.2: Elements of Reasonable Assurance

Descriptive

• 303(d) listed waterbody

• Water quality standards being violated or other criteria not met

• Pollutant(s) of concern

• Designated use classification

• Length (mi) or area (acres) of impairment or potential impairment

• Watershed/eight-digit cataloging unit code

• EPA Reach File Number

• Description of waterbody and watershed location

• Suspected or documented source(s) of impairment

Management Strategy

• Responsible entity

• Participating entities (government, agency, private, others)

• Summary of management strategy

• Supporting document(s)

• Pollutant(s) reduction goals/targets

• Assurance of participation (such as written agreements)

• Strategy for future growth and new sources

• Funding sources

• Implementation schedule

• Enforcement program if management strategy is not voluntary

Monitoring and Reporting Results

• Water quality monitoring program design and brief description

• Quality assurance/quality control elements

• Supporting document(s)

• Monitoring of implementation

• Reporting of monitoring and implementation results

• Expected response (time frame and degree of improvement)

• Responsible entity for reporting

• Frequency of reporting results

• Evaluating progress towards goals (water quality and 

implementation)

Corrective Actions/Strategy 

(if water quality does not improve after implementation)

• Description of strategy

• Supporting document(s)

Water Quality Assessment Report: Florida Keys 81
accepted and adopted by Secretarial Order, those WBIDs will be designated 

as Category 4b for nutrients.

The Verified List of Impaired Waters

Table 4.3 contains the draft Verifi ed List of impaired waters for the 

Florida Keys Basin, based on the water quality assessment performed using 

IWR Run 29_z as of October 1, 2007. Figure 4.1 shows waters on the 

draft Verifi ed List for the entire basin as of October 1, 2007, and the projected year for TMDL development. For presentation purposes, the entire 

watershed for the listed water is highlighted. However, only the main 

waterbody in the assessment unit has been assessed, and other waters in the 

watershed may not be impaired.

Table D.1 in Appendix D contains the Master List of all assessed 

waters in the basin as of October 1, 2007. An order containing the Verifi ed 

List of Impaired Group 5 Waters (Verifi ed List) was signed by the Department’s Secretary on December 12, 2007; however, due to continuing efforts 

at working out a Reasonable Assurance Plan for nutrients in the Florida 

Keys, the Group 5 Verifi ed List for the Florida Keys will be adopted at a 

later date. 

Pollutants Causing Impairments

Of the 67 waterbody segments in the Florida Keys Basin, 45 waters 

are impaired for at least 1 parameter, and a TMDL is required for these 

waters. There are a total of 92 parameter listings for impairment following the methodology in Appendix C. The Lower Keys Planning Unit has 

the largest number of impaired parameter listings with 43, followed by 

the Upper Keys Planning Unit with 31 listings. Finally, the Middle Keys 

 Planning Unit had 18 impaired parameter listings. 

The most common parameter exhibiting impairment throughout the 

Florida Keys Basin is mercury in fi sh involving all waterbody identifi cation numbers (WBIDs), followed by nutrients (other) with 24 listings, and 

bacteria (beach advisories) with 11 listings. For all WBIDs listed due to 

fi sh consumption advisories for mercury, the state has issued limited consumption advisories, which applies to fi sh species having mercury levels of 

0.5 to 1.5 parts per million. The data verifi ed to be within the last 7.5 years 

states for limited consumption of snook, red drum, great barracuda, king 

mackerel 33–39 inches, spotted seatrout greater than 20 inches, little tunny, 

cobia, greater amberjack, bluefi sh, crevalle jack, shark less than 43 inches, 

permit, and wahoo. No consumption advisory exists for king mackerel 

greater than 39 inches and shark greater than 43 inches. 

Dissolved Oxygen Impairments in Florida Keys

As required by the IWR, the Department must identify the pollutants 

causing or contributing to dissolved oxygen (DO) exceedances in order 

to place DO on the Verifi ed List. The DO impairment is linked to both 

anthropogenic pollutants, specifi cally nutrients (other), and physical alterations of the waterbody not related to pollutants. The Department is currently evaluating whether existing and proposed control measures provide 

82 Water Quality Assessment Report: Florida Keys
Table 4.3: The Draft Verified List4 of Impaired Waters for the Florida Keys Basin

WBID

Water Segment 

Name

Waterbody 

Type

Waterbody 

Class1

1998 303(d) 

Parameters 

of Concern

Parameters 

Identified Using 

the Impaired 

Surface 

Waters Rule 

Priority for 

TMDL 

Development2

Projected 

Year for 

TMDL 

 Development2 Comments3

6012A Big Pine Key Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

8/21.

6013C Cudjoe Key Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

5/19.

6014A Key West Coastal IIIM Fecal 

Coliforms

Low 2011 Planning period: 

418/2256; verified 

period: 459/2573.

6014A Key West Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

9/31.

6014B Stock Island Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

7/14.

8073 Key West Gulf Coastal IIIM Fecal 

Coliforms

Low 2011 Planning period: 

325/2262; verified 

period: 362/3036.

8073C Simonton 

Street Beach 

(KW)

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2004, 2005, 

and 2006. 

8073E South Beach 

(KW)

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2002, 2003, 

2004, 2005, and 2006.

8073F Higgs Beach Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2001, 2002, 

2003, 2004, 2005, and 

2006.

8073G Rest Beach 

(KW)

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2001. No 

data available for 2003, 

2004, 2005, and 2006.

8073H Smathers 

Beach

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2002, 2003, 

2005, and 2006.

8080A Bahia Honda 

Sandspur

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2005 and 

2006.

8080B Bahia Honda 

Oceanside

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2001, 2005, 

and 2006.

6011A Vaca Key Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

19/47.

Water Quality Assessment Report: Florida Keys 83
WBID

Water Segment 

Name

Waterbody 

Type

Waterbody 

Class1

1998 303(d) 

Parameters 

of Concern

Parameters 

Identified Using 

the Impaired 

Surface 

Waters Rule 

Priority for 

TMDL 

Development2

Projected 

Year for 

TMDL 

 Development2 Comments3

8076A Veteran’s 

Beach

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2004 and 

2005.

8081A Coco Plum 

Beach

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2001, 2004, 

2005, and 2006.

6005EB John Pennekamp State 

Park

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2002, 2003, 

2004, 2005, and 2006.

6006A South Key 

Largo

Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

42/86.

6006C North Key 

Largo

Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

5/8.

6009 Plantation Key Coastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

21/29.

6019 Lower Matecumbe KeyCoastal IIIM Copper Medium 2011 Planning period: No 

Data; verified period: 

8/13.

8078A Harry Harris 

County Park

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2002, 2004, 

2005, and 2006.

8078B Islamorada 

Library Beach

Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2004, 2005, 

and 2006. 

8078C Founder Beach IIIM Bacteria Low 2011 Beach advisories > 21 

days/year in 2002, 2004, 

2005, and 2006.

Table 4.3 (continued)

84 Water Quality Assessment Report: Florida Keys
WBID

Water Segment 

Name

Waterbody 

Type

Waterbody 

Class1

1998 303(d) 

Parameters 

of Concern

Parameters 

Identified Using 

the Impaired 

Surface 

Waters Rule 

Priority for 

TMDL 

Development2

Projected 

Year for 

TMDL 

 Development2 Comments3

8998 Florida Coast Coastal IIIM Nutrients 

(Other)

Nutrients 

(Other)

Medium 2011 The Florida Keys were 

identified as impaired 

for nutrients based on 

“other information” indicating an imbalance in 

flora or fauna, pursuant 

to Rule 62-303.450(2), 

F.A.C. However, the 

Department is currently 

evaluating whether 

existing and proposed 

control measures 

provide reasonable 

assurance that the 

nutrient impairment will 

be addressed, and the 

Department may not 

include this listing on 

the final Verified List 

adopted by Secretarial 

Order. The specific 

areal extent of the 

reasonable assurance 

demonstration is also 

pending further review, 

but may include WBIDs 

6018, 6012A, 6012B, 

6012C, 6012D, 6013A, 

6013B, 6013C, 6013D, 

6014A, 6014B, 6014C, 

6010, 6016, 6019, 6011A, 

6011B, 6011C, 6009, 

6017, 6006A, 6006B, 

6006C, and 6006Z.

Table 4.3 (continued)

Water Quality Assessment Report: Florida Keys 85
WBID

Water Segment 

Name

Waterbody 

Type

Waterbody 

Class1

1998 303(d) 

Parameters 

of Concern

Parameters 

Identified Using 

the Impaired 

Surface 

Waters Rule 

Priority for 

TMDL 

Development2

Projected 

Year for 

TMDL 

 Development2 Comments3

8998 Florida Coast Coastal IIIM Mercury 

(based on fish 

consumption)

Low 2011 Data verified to be 

within the last 7.5 years 

for limited consumption of snook, red drum, 

great barracuda, king 

mackerel 33–39 inches, 

spotted seatrout greater 

than 20 inches, little 

tunny, cobia, greater 

amberjack, bluefish, 

crevalle jack, shark less 

than 43 inches, permit, 

and wahoo. No consumption advisory for 

king mackerel greater 

than 39 inches and 

shark greater than 43 

inches. WBIDs include 

6006A–C, 6009, 6010, 

6011A+C, 6012A,C–E, 

6013A–D, 6014A–C, 

6016, 6017, 6018, 6019, 

8071, 8072, 8073, 8074, 

8075, 8076, 8077, 8078, 

8079, 8080, 8081, 8082, 

8083, 8084, 8085, 8086, 

8087. 

Notes:

1

Florida’s waterbody classifications are defined as follows: 

Class I: Potable water supplies

Class II: Shellfish propagation or harvesting

Class III: Recreation, propagation, and maintenance of a healthy, well-balanced population of fish and wildlife

Class IV: Agricultural water supplies

Class V: Navigation, utility, and industrial use (there are no state waters currently in this class) 2Priority and schedule reflect the priority established for the WBID in the 1998 303(d) list. Where a parameter was 1998 303(d)

listed, the priority shown in the 1998 303(d) list was retained if it was originally high, or changed to medium if it was originally 

low. In the case of mercury in fish, the priority remains low. Where a parameter was only identified as impaired under the IWR, 

priorities of high, medium, or low were used. 

3Planning period = January 1, 1994, through December 31, 2003; Verified period = January 1, 1999, through June 30, 2006.

4The Florida Keys Verified List is based on Run 29z_2.

Department = Florida Department of Environmental Protection

F.A.C. = Florida Administrative Code

M = Marine

WBID = Waterbody identification number

Table 4.3 (continued)

86 Water Quality Assessment Report: Florida Keys
Figure 4.1: Waters on the Verified List, with Projected Year for TMDL Development

Water Quality Assessment Report: Florida Keys 87
reasonable assurance that the nutrient impairment will be addressed. 

While the Department’s fi nal position on this issue is still pending for 

nutrients, the Department’s preliminary determination is that the control 

measures will address the anthropogenic pollutant loads impacting DO, 

but DO-impaired waterbodies will still not meet the applicable DO criteria 

due to the physical structure of the canal system. As such, impaired waterbodies have been placed in Category 4c for DO. 

Listing Based on Other Information Indicating Nutrient 

Imbalance

The Florida Keys were identified as impaired for nutrients based on 

“other information” indicating an imbalance in fl ora or fauna, pursuant 

to Rule 62-303.450(2), F.A.C. However, the Department is currently 

evaluating whether existing and proposed control measures provide reasonable assurance that the nutrient impairment will be addressed and the 

Department may not include this listing on the fi nal Verifi ed List adopted 

by Secretarial Order. The specifi c areal extent of the reasonable assurance 

demonstration is also pending further review, but may include WBIDs 

6018, 6012A, 6012B, 6012C, 6012D, 6013A, 6013B, 6013C, 6013D, 

6014A, 6014B, 6014C, 6010, 6016, 6019, 6011A, 6011B, 6011C, 6009, 

6017, 6006A, 6006B, 6006C, and 6006Z.

Pollutants Causing Potential Impairments

Table 4.4 summarizes the major parameters for which potential 

impairments were identifi ed.

Table 4.4 shows that per the 1998 303(d) list, nutrients (other 

information) were identifi ed as a potential cause of impairment in the 

Table 4.4: Parameters Causing Potential Impairments in the Florida Keys Basin 

Parameter

Waterbody Segment Impairments

Included Only 

on the

1998 303(d) List

Identified Only

by the Impaired 

Surface Waters Rule 

Evaluation

Identified on Both 

the 1998 303(d) List 

and by the Impaired 

Surface Waters Rule 

Evaluation

Total 

Impairments

Dissolved Oxygen — — — —

Nutrients 

(Other Information)

5——5

Bacteria 

(Beach Advisories)

—— ——

Coliforms

(Fecal)

—— ——

Metals (Mercury) — — — —

Metals (Copper) — 1 — 1

Suspended Solids

(Turbidity)

—— ——

Fish* — — — —

*Fish = Fish consumption advisory issued by the Florida Department of Health based on mercury.

88 Water Quality Assessment Report: Florida Keys
 embayment portion of the basin, specifi cally 5 waterbody segments (6002, 

6003, 6005, 6005A, and 6005B). Other parameters indicating the potential impairment of waterbody segments in this basin include copper, which 

has been documented verifi ed impaired already in 9 WBIDs in the Florida 

Keys Basin. However, for both types of potential impairments very few 

water quality data exist in the STOrage and RETrieval database to verify 

the impairments. For this reason, additional monitoring will be conducted 

to either confi rm or refute the impairments.

Adoption Process for the Verified List of Impaired Waters

The Verified List must be submitted in a specifi c format (Section 

62-303.710, F.A.C.) before being approved by order of the Department’s 

Secretary. The list must specify the pollutant and concentration causing 

the impairment. If a waterbody segment is listed based on water quality criteria exceedances, then the list must provide the applicable criteria. 

However, if the listing is based on narrative or biological criteria, or impairment of other designated uses, and the water quality criteria are met, the 

Verifi ed List is required to specify the concentration of the pollutant relative to the water quality criteria and explain why the numeric criterion is 

not adequate.

For waters with exceedances of the DO criteria, the Department must 

identify the pollutants causing or contributing to the exceedances and list 

both the pollutant and DO in the Verifi ed List.

For waters impaired by nutrients, the Department is required to identify whether nitrogen or phosphorus, or both, are the limiting nutrients, 

and specify the limiting nutrient(s) in the Verifi ed List.

The Verifi ed List must also include the priority and schedule for 

TMDL development established for a waterbody segment and note any 

waters that are being removed from the current Planning List. In future 

watershed management cycles, the list must also note waters that are being 

removed from any previous Verifi ed List for the basin. 

Water Quality Assessment Report: Florida Keys 89

Chapter 5: TMDL Development, Allocation, 

and Implementation

Prioritization of Listed Waters

Following the identifi cation of impaired waters on the 303(d) list, the 

Florida Department of Environmental Protection (Department) determines 

priorities for developing total maximum daily loads (TMDLs) in Phase 3 of 

the watershed management cycle. When TMDLs are established, general 

allocations of pollutant load reductions are identifi ed, at least to the level of 

point and nonpoint source categories.

Because TMDLs cannot be developed for all listed waters during 

a single watershed management cycle, waterbodies will be prioritized 

using the criteria in the Impaired Surface Waters Rule (IWR) (Section 

62-303.500, Florida Administrative Code). The rule states that when 

establishing the TMDL development schedule for waters on the Verifi ed 

List, the Department will prioritize impaired waterbody segments according to the severity of the impairment and each waterbody’s designated 

uses, taking into account the most serious water quality problems, the 

most valuable and threatened resources, and the risk to human health and 

aquatic life.

Under the IWR, the determination of high-, low-, and medium-

 priority waters is based on the following criteria.

High-priority waters:

• Waterbody segments where the impairment poses a threat to potable 

water supplies or human health;

• Waterbody segments where the impairment is due to a pollutant 

regulated by the Clean Water Act and the pollutant has contributed to the decline or extirpation of a federally listed threatened or 

endangered species, as indicated in the Federal Register listing the 

species; or

• Waterbody segments verifi ed as impaired that are included on the 

U.S. Environmental Protection Agency’s (EPA’s) 1998 303(d) list as 

high priority.

Low-priority waters:

• Waterbody segments that are listed before 2010 because of fi sh 

consumption advisories for mercury (due to the current insuffi cient 

understanding of how mercury cycles in the environment);

Water Quality Assessment Report: Florida Keys 91
• Canals, urban drainage ditches, and other artifi cial waterbody segments that are listed only due to exceedances of dissolved oxygen 

criteria; or

• Waterbody segments that were not on the Planning List but were 

identifi ed as impaired during Phase 2 of the watershed management 

cycle and were included on the Verifi ed List, unless the segment 

meets the second high-priority criterion.

• The EPA has also proposed assigning to this category the list of additional waterbody segments that the agency developed using its own 

evaluation methodology, until the Department has had the opportunity to investigate these waterbodies further.

All segments not designated high or low priority are medium priority, 

and are prioritized based on the following factors:

• The presence of Outstanding Florida Waters;

• The presence of waterbody segments that fail to meet more than one 

designated use, i.e., aquatic life, primary contact and recreation, fi sh 

and shellfi sh consumption, drinking water, and the protection of 

human health;

• The presence of waterbody segments that exceed an applicable water 

quality criterion or alternative threshold with a frequency of greater 

than 25 percent at a minimum confi dence level of 90 percent;

• The presence of waterbody segments that exceed more than one 

applicable water quality criterion; or

• Administrative needs of the TMDL Program, including meeting a 

TMDL development schedule agreed to with the EPA, basin priorities related to the Department’s watershed management approach, 

and the number of administratively continued permits in the basin.

The Department is adhering to the TMDL schedule established in the 

Consent Decree between the EPA and Earthjustice for waters on the 1998 

303(d) list that are also identifi ed as impaired under the IWR. Under that 

scenario, none of the Florida Keys WBIDs were listed as high priority, with 

the earliest TMDLs scheduled for development in 2011. 

Total Maximum Daily Load Development

During Phase 3 of the watershed management cycle, TMDLs will be 

developed for both point and nonpoint sources of pollutants in impaired 

waterbodies and will be adopted by rule at the end of this phase.

TMDL development involves determining the maximum amount of 

a given pollutant that a waterbody can assimilate and still meet the applicable numeric or narrative water quality criterion for the pollutant. In 

most cases, this “assimilative” capacity will be determined using computer 

modeling (both hydrodynamic and water quality models) that predicts 

92 Water Quality Assessment Report: Florida Keys
the fate and transport of pollutants in the receiving waters. Modeling for 

the typical TMDL will include model setup, calibration, and verifi cation, 

 followed by a variety of model runs that determine the assimilative capacity 

of the water under worst-case conditions.

State law and federal regulations require that TMDLs include a margin 

of safety (MOS) that takes into account “any lack of knowledge concerning 

the relationship between effl uent limitations and water quality.” The EPA 

has allowed states to establish either a specifi c MOS (typically some percentage of the assimilative capacity) or an implicit MOS based on conservative assumptions in the modeling. To date, the Department has elected to 

establish an implicit MOS based on predictive model runs that incorporate 

a variety of conservative assumptions. (They examine worst-case ambient 

fl ow conditions and worst-case temperature, and assume that all permitted 

point sources discharge at their maximum permitted amount.)

It is important to note that TMDLs will be developed only for the 

actual pollutants causing the impairment in the listed waterbody. These 

are called the “pollutants of concern.” In Florida, the most commonly 

listed pollutants of concern are nutrients, sediments, and coliform bacteria. TMDLs will not be developed for impairments not due to pollutant 

discharges—for example, natural conditions, physical alterations such as 

dams and channelization, or changes in the fl ow of water. In other cases, 

a waterbody may be deemed potentially impaired based on bioassessment 

data or toxicity data. In these cases, the Department must determine the 

actual pollutant causing the impairment before a TMDL can be developed.

Total Maximum Daily Load Allocation and 

Implementation

Initial Allocation of Pollutant Loadings

The Florida Watershed Restoration Act (FWRA) requires that a 

TMDL include the “establishment of reasonable and equitable allocations 

. . . among point and nonpoint sources . . . .” The Department refers to 

this as the “initial allocation,” which is adopted by rule. For the purposes 

of allocating the required pollutant loadings, the term “point sources” 

 primarily includes traditional sources such as domestic and industrial 

wastewater discharges.

Recent EPA guidance requires states to include as point sources those 

stormwater systems that are covered by a National Pollutant Discharge 

Elimination System (NPDES) stormwater permit. However, NPDES-

 permitted stormwater discharges are not subject to the same types of 

 effl uent limitations, cannot be centrally collected and treated, and typically 

have not invested in treatment controls to the same degree as traditional 

point sources. Nonpoint sources include intermittent, rainfall-driven, 

 diffuse sources of pollutants associated with everyday human activities, 

including runoff from urban land uses, agriculture, silviculture, and 

mining; discharges from failing septic systems; and atmospheric deposition.

These point and nonpoint defi nitions do not directly relate to whether 

a source is regulated. Some nonpoint sources such as stormwater systems are permitted under the regulatory programs of the Department or 

Water Quality Assessment Report: Florida Keys 93
water management districts, while others, such as agricultural stormwater 

 discharges, are not. This distinction is important because the implementation of the allocations to nonpoint sources outside the authority of regulatory programs will require cooperation from dischargers to implement best 

management practices (BMPs) voluntarily.

While a “detailed allocation” will ultimately be necessary to implement 

a TMDL fully, a key goal of the initial allocation is to assign responsibility for pollutant load reductions between point and nonpoint sources. For 

point sources, allocations will be implemented through the Department’s 

NPDES wastewater and stormwater permitting programs. The implementation of nonpoint source load reductions will be done through a combination of regulatory and nonregulatory processes. 

Initial allocations of pollutant loadings will also be made to historical 

sources (e.g., the phosphorus-laden sediments at the bottom of a lake) and 

upstream sources (those entering into an impaired waterbody). Upstream 

sources include sources outside Florida, and these sources will receive 

reduced allocations similar to in-state sources.

The FWRA provided direction for the allocation of TMDLs and 

directed the Department to provide guidance on the allocation process by 

establishing an Allocation Technical Advisory Committee (ATAC), consisting of representatives of key stakeholder groups. The committee recommended a three-step process for developing initial allocations and addressed 

detailed allocations for nonpoint sources, stakeholder involvement, the use 

of BMPs, and other TMDL implementation issues (Department, 2001). 

Implementation Programs and Approaches 

The FWRA designates the Department as the lead agency in coordinating the implementation of TMDLs. Existing programs and approaches 

through which TMDLs may be carried out include the following:

• Permitting and other existing regulatory programs, such as NPDES 

permits, domestic and industrial wastewater permits, and stormwater/Environmental Resource Permits. The municipal NPDES 

stormwater permittees in the Florida Keys Basin are the City of 

Marathon and the City of Key West.

• Local land development codes;

• Nonregulatory and incentive-based programs, including BMPs, cost 

sharing, waste minimization, pollution prevention, new approaches 

to land use design and development, and public education; 

• Basin Management Action Plans (B-MAPs) developed under the 

FWRA;

• Other water quality management and restoration activities, for 

 example, Surface Water Improvement and Management plans 

approved under Section 373.453, Florida Statutes;

• Pollutant trading or other equitable economically based agreements;

94 Water Quality Assessment Report: Florida Keys
• Public works, including capital facilities; or

• Land acquisition.

These programs and approaches will be carried out at local, regional, 

state, and possibly federal levels. TMDL implementation will require 

extensive stakeholder involvement throughout the state and, in some cases, 

between Florida and other states. Appendix A provides additional details 

on implementation programs and approaches. 

Development of Basin Management Action 

Plans

The FWRA authorizes the Department to develop B-MAPs for implementing TMDLs. These plans will be developed with extensive stakeholder input to build consensus on detailed allocations based on the initial 

general allocations to categories of discharges.

The B-MAPs will contain fi nal allocations, strategies for meeting the 

allocations, schedules for implementation, funding mechanisms, applicable 

local ordinances, and other elements. In cases where stakeholder consensus could not be reached on detailed allocations and/or a B-MAP within a 

reasonable time, the Department will develop the allocations.

Once a B-MAP is developed, the Department will make it available for 

public review and comment. Guidance for the content and format of the 

B-MAPs is being developed; the plans are likely to include a description of 

both regulatory and nonregulatory approaches to meeting specifi c TMDLs.

Water Quality Assessment Report: Florida Keys 95
References

Boyer, J. N. 2005. Personal communication. Southeast Environmental 

Research Center, Florida International University.

Boyer, J. N., and R. D. Jones. 2004. FY 2003 annual report of the water 

quality monitoring project for the water quality protection program in the 

Florida Keys National Marine Sanctuary. Technical Report #T-228. 

Miami, Florida: Southeast Environmental Research Center, Florida 

International University.

Boyer, J. N., R. D. Jones, and D. Mir-Gonzalez. 2004. Little Venice water 

quality monitoring project: Phase 1 results, fi nal report for EPA agreement 

#X994621-94-0 and Monroe County. Miami, Florida: Southeast Environmental Research Center, Florida International University.

Cable, J. E., D. R. Corbett, and M. M. Walsh. June 2002. Phosphated 

uptake in coastal limestone aquifers: A fresh look at wastewater 

 management. Limnology and Oceanography Bulletin. Volume 11(2).

Chanton, J. 1998. Use of natural and artifi cial tracers to detect subsurface 

fl ow of contaminated groundwater in the Florida Keys National Marine 

Sanctuary. Final report submitted to the Water Quality Protection 

Program.

Copeland, R., S. Upchurch, K. Summers, A. Janicki, P. Hansard, 

M. Paulic, G. Maddox, J. Silvanima, and P. Craig. 1999. Overview of 

the Florida Department of Environmental Protection’s integrated water 

resource monitoring efforts and the design plan of the status network. 

 Tallahassee, Florida: Florida Department of Environmental Protection, Ambient Monitoring Section.

Corbett, D. R., J. Chanton, W. Burnett, K. Dillon, C. Rutkowski, and 

J. W. Fourqurean. 1999. Patterns of groundwater discharge into 

Florida Bay. Limnology and Oceanography Bulletin 44(4): 1045–1055.

Dillon, K. S., D. R. Corbett, W. C. Burnett, and J. P. Chanton. 2001. 

The use of artifi cial tracers to determine ground-water fl ow and the fate of 

nutrients in karst systems underlying the Florida Keys. U.S. Geological 

Survey Karst Interest Group Proceedings. Water-Resources Investigations Report 01-4011.

Dustan, P., B. H. Lidz, and E. A. Shinn. 1991. Impact of exploratory 

wells, offshore Florida: A biological assessment. Bulletin of Marine 

Science 48(1): 94–124.

English, D. B. K., W. Kriesel, V. R. Leeworthy, and P. Wiley. 1996. 

Economic contribution of recreating visitors to the Florida Keys/Key West. 

Linking the Economy and Environment of Florida Keys/Florida Bay. 

National Oceanic and Atmospheric Administration, The Nature Conservancy, Monroe County Tourist Development Council.

Federal Clean Water Act. Section 303(d).

Fernald, E. A., and E. D. Purdum (Eds.). 1998. Water resources atlas of 

Florida. Tallahassee, Florida: Florida State University, Institute of 

 Science and Public Affairs.

Florida Administrative Code. Rule 62-302. Surface water quality 

 standards.

—. Rule 62-303. Identifi cation of impaired surface waters rule.

96 Water Quality Assessment Report: Florida Keys
Florida Department of Environmental Protection. February 1, 2001. A 

report to the governor and the legislature on the allocation of total maximum daily loads in Florida. Tallahassee, Florida: Bureau of Watershed 

Management, Division of Water Resource Management.

—. May 2004. Typical water quality values for Florida’s lakes, streams, and 

estuaries (draft). Document in preparation. Watershed Assessment 

Section.

Florida Fish and Wildlife Conservation Commission. 2005. List of 

Florida’s endangered and threatened species and species of special concern. 

Available: http://www.fl mnh.ufl .edu/fi sh/southfl orida/coral/ 

endangeredkeys.html.

Florida Legislature. 2007. Offi ce of Economic and Demographic Research 

Web Site. Available: http://edr.state.fl .us/population.htm.

Floridakeys.com. 2005. History of Islamorada. Available: 

http:// fl oridakeys.com/islamorada/history.htm.

Florida Watershed Restoration Act. 1999. Chapter 99-223, Laws of 

Florida.

Haag, K. H., R. L. Miller, L. A. Bradner, and D. S. McCulloch. 1996. 

Water-quality assessment of southern Florida: An overview of available 

information on surface-water and ground-water quality and ecology. 

U.S. Geological Survey Water-Resources Investigations Report 

96-4177.

Kruczynski, W. L. 1999. Water quality concerns in the Florida Keys: 

Sources, effects, and solutions. EPA-904-R-99-005. Marathon, Florida: 

U.S. Environmental Protection Agency, Water Quality Protection 

 Program, Florida Keys National Marine Sanctuary Program.

Kump, L. 1998. Wastewater nutrients in the Florida Keys: Contrasting 

behaviors of phosphorus and nitrogen. Final report submitted to the 

Water Quality Protection Program. In Kruczynski, 1999.

Lane, E. 1986. Geology of the state parks in the Florida Keys. Florida 

Bureau of Geology. Leafl et No. 14.

Lapointe, B. E., J. D. O’Connell, and G. S. Garrett. 1990. Nutrient 

couplings between on-site sewage disposal systems, groundwaters, and 

nearshore surface waters of the Florida Keys. Biogeochemistry 

10:2289–2307.

Leeworthy, V. R., and P. C. Wiley. 1997. Visitor profi les: Florida Keys/Key 

West. A socioeconomic analysis of the recreation activities of Monroe 

County residents in the Florida Keys/Key West. Linking the economy 

and environment of Florida Keys/Florida Bay. National Oceanic 

and Atmospheric Administration, The Nature Conservancy, Monroe 

County Tourist Development Council.

Maddox, G. L., J. M. Lloyd, T. M. Scott, S. B. Upchurch, and R. Copeland (Eds.). 1992. Florida ground water quality monitoring program–

Volume 2: Background hydrogeochemistry. Florida Geological Survey, 

Special Publication No. 34.

Paul, J. H., J. B. Rose, S. Jiang, C. Kellogg, and E. A. Shinn. 1995. 

Occurrence of fecal indicator bacteria in surface waters and the subsurface aquifer in Key Largo, Florida. Applied and Environmental 

 Microbiology 61:2235–2241.

Water Quality Assessment Report: Florida Keys 97
Paul, J. H., M. R. McLaughlin, D. W. Griffi n, E. K. Lipp, R. Stokes, 

and J. B. Rose. October 2000. Rapid movement of wastewater from 

on-site disposal systems into surface waters in the lower Florida Keys. 

Estuaries 2(5): 662–668.

Payne, G., K. Weaver, T. Bennett, and F. Nearhoof. November 2000. 

Phosphorus criterion technical support document, part 1: Water 

 conservation area 2. Tallahassee, Florida: Florida Department of 

 Environmental Protection, Everglades Technical Support Section. 

Reich, C. D., E. A. Shinn, T. D. Hickey, and A. B. Tihansky. 2002. Tidal 

and meteorological infl uences on shallow marine groundwater fl ow in 

the upper Florida Keys. The Everglades, Florida Bay, and Coral Reefs 

of the Florida Keys: An Ecosystem Sourcebook. Porter, J. W., and Porter, 

K. G. (Eds). Boca Raton: CRC Press.

Shinn, E. A. 1988. The geology of the Florida Keys. Oceanus 31:47–53. 

In Kruczynski, 1999.

Shinn, E. A., G. W. Smith, J. M. Prospero, P. Betzer, M. L. Hayes, V. 

 Garrison, and R. Barber. 2000. African dust and the demise of 

 Caribbean coral reefs. Geophysical Research Letter 27(19): 3029–3032.

Shinn, E. A., R. S. Reese, and C. D. Reich. 1994. Fate and pathways of 

injection well effl uent in the Florida Keys. U.S. Geological Survey SGS 

OFR 94-276.

U.S. Army Corps of Engineers, Jacksonville District, and South Florida 

Water Management District. March 2004. Program management 

plan. Florida Keys Water Quality Improvements Program. 

U.S. Census Bureau. 2004. State and county quick facts Web site. 

Available: http://quickfacts.census.gov/qfd/states/00000.html.

U.S. Department of Commerce. 1996. Florida Keys national marine 

 sanctuary, strategy for stewardship. Final Management Plan/ 

Environmental Impact Statement. Volume II.

Wayland, R. H., III. November 19, 2001. 2002 Integrated water quality 

monitoring and assessment report guidance. Memorandum to EPA 

Regional Water Management Directors; EPA Regional Science 

and Technology Directors; and State, Territory, and Authorized 

Tribe Water Quality Program Directors. Washington, D.C.: U.S. 

 Environmental Protection Agency. 

Wilkinson, J. 2004. Florida Keys history museum (Keys Historeum). 

 Presented by the Historical Preservation Society of the Upper Keys. 

Available: http://www.keyshistory.org/.

98 Water Quality Assessment Report: Florida Keys
Water Quality Assessment Report 2008

Florida Keys Appendices 

TABLE OF CONTENTS 

Appendix A: Legislative and Regulatory Background on the Watershed 

Management Approach and the Implementation of Total Maximum 

Daily Loads .................................................................................................................... 101

Federal and State Legislation on Surface Water Quality and Total Maximum Daily Loads ...... 101

Determining Impairment Based on the State’s Impaired Surface Waters Rule .......................... 103

Implementing Total Maximum Daily Loads ............................................................................... 105

Table A.1: Basin Groups for Implementing the Watershed Management Cycle, by 

Department District Office ................................................................................. 107

Table A.2: Basin Rotation Schedule for TMDL Development and Implementation ............ 107

Figure A.1: Five-Year Rotating Basin Cycle in the Department’s Six Districts ................... 108

Table A.3: Potentially Affected Stakeholders and Actions To Achieve TMDLs ................... 109

Appendix B: Information on Reasonable Assurance ................................................ 112

Background ................................................................................................................................. 112

Current Rule Text Relating to Evaluation of Pollution Control Mechanisms ............................. 113

Responsible Parties for Reasonable Assurance Demonstration .................................................. 113

Time Frame for Development of Documentation ....................................................................... 114

What It Means To Be Under Local, State, or Federal Authority ................................................. 114

Time Frame for Attaining Water Quality Standards ................................................................... 114

Parameter-Specific Nature of Demonstration .............................................................................. 115

Information To Consider and Document when Assessing Reasonable Assurance in the IWR... 115

Water Quality–Based Targets and Aquatic Ecological Goals ..................................................... 116

Interim Targets ............................................................................................................................ 117

Averaging Periods for Water Quality Targets ............................................................................. 117

Estimates of Pollutant Reductions from Restoration Actions ..................................................... 117

New Sources/Growth .................................................................................................................. 117

Examples of Reasonable Progress ............................................................................................... 118

Long-Term Requirements ........................................................................................................... 118

Appendix C: Methodology for Determining Impairment Based on the 

Impaired Surface Waters Rule .................................................................................... 119

The Impaired Surface Waters Rule ............................................................................................. 119

Attainment of Designated Use(s) ................................................................................................ 119

Table C.1: Designated Use Attainment Categories for Surface Waters in Florida ............. 120

Sources of Data ........................................................................................................................... 120

Table C.2: Data Used in Developing the Planning and Verified Lists, First Basin 

Rotation Cycle ..................................................................................................... 121

Methodology ............................................................................................................................... 121
100 Water Quality Assessment Report: Florida Keys 

Appendix D: Integrated Assessment (Master List) for the Florida Keys Basin .... 127

Table D.1: Integrated Water Quality Report (Master List) for the Florida Keys Basin, 

by Planning Unit ................................................................................................. 128

Table D.2: Water Quality Monitoring Stations Used in the Assessment for the 

Florida Keys Basin, by Planning Unit ................................................................ 189

Appendix E: Permitted Facilities and Landfills in the Florida Keys Basin, by 

Planning Unit ................................................................................................................. 253

Table E.1: Permitted Facilities with Discharges, by Planning Unit .................................... 253

Table E.2: Permitted Landfill Facilities in the Florida Keys Basin, by Planning Unit ....... 265

Appendix F: Level I Land Use in the Florida Keys Basin, by Planning Unit ........ 266

Table F.1: Level 1 2004 - 2005 Land Use in the Upper Keys Planning Unit ...................... 266

Table F.2: Level 1 2004 -2005 Land Use in the Middle Keys Planning Unit ...................... 266

Table F.3: Level 1 2004 - 2005 Land Use in the Lower Keys Planning Unit ...................... 266

Appendix G: Documentation Provided during Public Comment Period ............... 267
Water Quality Assessment Report: Florida Keys 101

Appendix A: Legislative and Regulatory Background on the 

Watershed Management Approach and the Implementation of 

Total Maximum Daily Loads 

Federal and State Legislation on Surface Water Quality and Total Maximum 

Daily Loads 

Clean Water Act 

Congress enacted the Clean Water Act in 1972 with the goal of restoring and 

maintaining the “chemical, physical, and biological integrity of the nation’s waters” (33 

U.S.C. § 1251[a]). The ultimate goal of the act is to eliminate the “discharge of [all] 

pollutants into navigable waters” (33 U.S.C. § 1251[a][1]). 

Section 305(b) of the Clean Water Act requires states to report biennially to the U.S. 

Environmental Protection Agency (EPA) on their water quality. The 305(b) assessment 

report provides information on the physical, chemical, biological, and cultural features of 

each river basin in Florida. This initial assessment provides a common factual basis for 

identifying information sources and major issues, and for determining the future changes, 

strategies, and actions needed to preserve, protect, and/or restore water quality. 

Understanding the physical framework of each basin allows the development of a 

science-based methodology for assessing water quality and an accurate picture of the 

waters that are most impaired or vulnerable to contamination. 

Section 303(d) of the Clean Water Act requires states to submit to the EPA lists of 

surface waters that do not meet applicable water quality standards and establish total 

maximum daily loads (TMDLs) for each of these waters on a schedule. A pollution limit 

is then allocated to each pollutant source in an individual river basin. 

A TMDL represents the maximum amount of a given pollutant that a waterbody can 

assimilate and meet all of its designated uses (see Noteworthy on Florida’s surface water 

quality classifications for a listing of these classifications). A waterbody that does not 

meet its designated use is defined as impaired. 

NOTEWORTHY: FLORIDA’S SURFACE WATER QUALITY CLASSIFICATIONS 

Florida’s water quality standards program, the foundation of the state’s program of water quality 

management, designates the “present and future most beneficial uses” of the waters of the state 

(Subsection 403.061[10], Florida Statutes [F.S.]). Water quality criteria, expressed as numeric or 

narrative limits for specific parameters, describe the water quality necessary to maintain these 

uses for surface water and ground water. Florida’s surface water is protected for five designated 

use classifications, as follows: 

Class I Potable water supplies 

Class II Shellfish propagation or harvesting 

Class III Recreation, propagation, and maintenance of a healthy, well-balanced 

 population of fish and wildlife 

Class IV Agricultural water supplies 

Class V Navigation, utility, and industrial use (there are no state waters currently in 

 this class) 
102 Water Quality Assessment Report: Florida Keys 

Florida Watershed Restoration Act 

In 1998, the EPA settled a lawsuit with the environmental group Earthjustice over 

Florida’s TMDL Program. The Consent Decree resulting from the lawsuit requires all 

TMDLs on the state’s 1998 Section 303(d) list of impaired waters to be developed in 13 

years. If the state fails to develop the TMDLs, the EPA is required to do so. 

In response to concerns about the TMDL lawsuit and in recognition of the important 

role that TMDLs play in restoring state waters, the 1999 Florida legislature enacted the 

Florida Watershed Restoration Act (FWRA) (Chapter 99-223, Laws of Florida). The act 

clarified the Florida Department of Environmental Protection’s (Department) statutory 

authority to establish TMDLs, required the Department to develop a methodology for 

identifying impaired waters, specified that the Department could develop TMDLs only 

for waters on a future state list of impaired waters developed using this new 

methodology, and directed the Department to establish an Allocation Technical Advisory 

Committee (ATAC) to address the allocation process for TMDLs. The act also declared 

Lake Okeechobee impaired and, as required under the TMDL Consent Decree, allowed 

the state to develop a TMDL for the lake (see Noteworthy for a description of the 

legislation’s major provisions). 

NOTEWORTHY: THE FLORIDA WATERSHED RESTORATION ACT 

The Florida Watershed Restoration Act contains the following major provisions: 

• Establishes that the 303(d) list submitted to the EPA in 1998 is for planning purposes only. 

• Requires the Department to adopt 303(d) listing criteria (that is, the methodology used to 

define impaired waters) by rule. 

• Requires the Department to verify impairment and then establish a Verified List for each 

basin. The Department must also evaluate whether proposed pollution control programs are 

sufficient to meet water quality standards, list the specific pollutant(s) and concentration(s) 

causing impairment, and adopt the basin-specific 303(d) list by Secretarial Order. 

• Requires the Department’s Secretary to adopt TMDL allocations by rule. The legislation 

requires the Department to establish “reasonable and equitable” allocations of TMDLs, but 

does not mandate how allocations will be made among individual sources. 

• Requires that TMDL allocations consider existing treatment levels and management 

practices; the differing impacts that pollutant sources may have; the availability of treatment 

technologies, best management practices (BMPs), or other pollutant reduction measures; the 

feasibility, costs, and benefits of achieving the allocation; reasonable time frames for 

implementation; the potential applicability of moderating provisions; and the extent that 

nonattainment is caused by pollutants from outside Florida, discharges that have ceased, or 

alteration to a waterbody. 

• Required a report to the legislature by February 2001 addressing the allocation process. 
Water Quality Assessment Report: Florida Keys 103

• Authorizes the Department to develop basin plans to implement TMDLs, coordinating with the 

water management districts, the Florida Department of Agriculture and Consumer Services 

(DACS), the Soil and Water Conservation Districts, regulated parties, and environmental 

groups in assessing waterbodies for impairment, collecting data for TMDLs, developing 

TMDLs, and conducting at least one public meeting in the watershed. Implementation is 

voluntary if not covered by regulatory programs. 

• Authorizes the Department and DACS to develop interim measures and BMPs to address 

nonpoint sources. While BMPs would be adopted by rule, they will be voluntary if not 

covered by regulatory programs. If they are adopted by rule and the Department verifies their 

effectiveness, then implementation will provide a presumption of compliance with water 

quality standards. 

• Directs the Department to document the effectiveness of the combined regulatory/voluntary 

approach and report to the legislature by January 1, 2005. The report will include 

participation rates and recommendations for statutory changes. 

Determining Impairment Based on the State’s Impaired Surface Waters Rule 

Section 303(d) of the federal Clean Water Act and the FWRA describe impaired 

waters as those waterbodies or waterbody segments that do not meet applicable water 

quality standards. “Impairment” is a broad term that includes designated uses, water 

quality criteria, the Florida antidegradation policy, and moderating provisions (see 

Noteworthy for explanations of these terms). 

The state’s Identification of Impaired Surface Waters Rule (IWR) (Rule 62-303, 

Florida Administrative Code [F.A.C.]) was developed in cooperation with a Technical 

Advisory Committee and adopted by the Florida Environmental Regulation Commission 

on April 26, 2001. It provides a science-based methodology for evaluating water quality 

data in order to identify impaired waters, and establishes specific criteria for impairment 

based on chemical parameters, the interpretation of narrative nutrient criteria, biological 

impairment, fish consumption advisories, and ecological impairment. The complete text 

of the rule is available at http://www.dep.state.fl.us//legal/Rules/shared/62-303/62-

303.pdf. 

The IWR also establishes thresholds for data sufficiency and data quality, including 

the minimum sample size required and the number of exceedances of the applicable 

water quality standard for a given sample size that identify a waterbody as impaired. The 

number of exceedances is based on a statistical approach designed to provide greater 

confidence that the outcome of the water quality assessment is correct. Waters that are 

identified as impaired through the IWR are prioritized for TMDL development and 

implementation. 
104 Water Quality Assessment Report: Florida Keys 

NOTEWORTHY: EXPLANATION OF TERMS 

• Designated uses, discussed in an earlier sidebar, comprise the five classifications applied to 

each of the state’s surface waterbodies.

• Water quality criteria comprise numeric or narrative limits of pollutants. 

• The Florida Antidegradation Policy (Sections 62-302.300 and 62-4.242, F.A.C.) recognizes 

that pollution that causes or contributes to new violations of water quality standards or to the 

continuation of existing violations is harmful to the waters of the state. Under this policy, the 

permitting of new or previously unpermitted existing discharges is prohibited where the 

discharge is expected to reduce the quality of a receiving water below the classification

established for it. Any lowering of water quality caused by a new or expanded discharge to 

surface waters must be in the public interest (that is, the benefits of the discharge to public 

health, safety, and welfare must outweigh any adverse impacts on fish and wildlife or 

recreation). Further, the permittee must demonstrate that other disposal alternatives (for 

example, reuse) or pollution prevention are not economically and technologically reasonable 

alternatives to the surface water discharge. 

• Moderating provisions (provided in Subsection 62-302.300[10] and Rules 62-4 and 62-6, 

F.A.C., and described in Sections 62-302.300, 62-4.244, 62-302.800, 62-4.243, F.A.C., and 

Sections 403.201 and 373.414, F.S.) include mixing zones, zones of discharge, site-specific 

alternative criteria, exemptions, and variances. These provisions are intended to moderate 

the applicability of water quality standards where it has been determined that, under certain 

special circumstances, the social, economic, and environmental costs of such applicability 

outweigh the benefits. 

Determining impairment in individual waterbodies takes place in two phases. First, 

in each river basin the Department evaluates the existing water quality data, using the 

methodology prescribed in the IWR, to determine whether waters are potentially 

impaired. Waters found to be potentially impaired are included on a Planning List for 

further assessment under Subsections 403.067(2) and (3), F.S. As required by Subsection 

403.067(2), F.S., the Planning List is not used to administer or implement any regulatory 

program. It is submitted to the EPA for informational purposes only. 

The second step is to assess waters on the Planning List under Subsection 

403.067(3), F.S., as part of the Department’s watershed management approach (described 

in the following section). The Department carries out additional data gathering and 

strategic monitoring, focusing on these potentially impaired waters, and determines—

using the methodology in Part III, Section 62-303.400, F.A.C.—if a waterbody is, in fact, 

impaired and if the impairment is caused by pollutant discharges. 

A Water Quality Assessment Report is produced containing the results of this 

updated evaluation and a Verified List of impaired waters. The criteria for the Verified 

List are more stringent than those for the Planning List. The Department is required to 

develop TMDLs for waters on the Verified List under Subsection 403.067(4), F.S. A 

watershed management plan (called a Basin Management Action Plan, or BMAP) to 

reduce the amount of pollutants that cause impairments must also be produced and 

implemented. 
Water Quality Assessment Report: Florida Keys 105

The Verified List is adopted by Secretarial Order in accordance with the FWRA. 

Once adopted, the list is submitted to the EPA for approval as the state’s Section 303(d) 

list of impaired waters for the basin. 

Implementing Total Maximum Daily Loads 

The Watershed Management Approach 

The Department's statewide approach to water resource management, called the 

watershed management approach, is the framework for implementing TMDLs as required 

by the federal and state governments. The approach does not focus on individual causes 

of pollution. Instead, each basin is assessed as an entire functioning system, and aquatic 

resources are evaluated from a basinwide perspective that considers the cumulative 

effects of human activities. Water resources are managed on the basis of natural 

boundaries, such as river basins, rather than political or regulatory boundaries. Federal, 

state, regional, tribal, and local governments identify watersheds not meeting clean water 

or other natural resource goals and work cooperatively to focus resources and implement 

effective strategies to restore water quality. Extensive public participation in the 

decision-making process is crucial. 

The watershed management approach is not new, nor does it compete with or replace 

existing programs. Rather than relying on single solutions to water resource issues, it is 

intended to improve the health of surface water and ground water resources by 

strengthening coordination among such activities as monitoring, stormwater 

management, wastewater treatment, wetland restoration, land acquisition, and public 

involvement. 

By promoting the management of entire natural systems and addressing the 

cumulative effects of human activities on a watershed basis, this approach is intended to 

protect and enhance the ecological structure, function, and integrity of Florida’s 

watersheds. It provides a framework for setting priorities and focusing the Department’s 

resources on protecting and restoring water quality, and aims to increase cooperation 

among state, regional, local, and federal interests. By emphasizing public involvement, 

the approach encourages stewardship by all Floridians to preserve water resources for 

future generations. 

The watershed approach is intended to speed up projects by focusing funding and 

other resources on priority water quality problems, strengthening public support, 

establishing agreements, and funding multiagency projects. It avoids duplication by 

building on existing assessments and restoration activities and promotes cooperative 

monitoring programs. It encourages accountability for achieving water quality 

improvements through improved monitoring and the establishment of TMDLs. 
106 Water Quality Assessment Report: Florida Keys 

The Watershed Management Cycle 

As part of the Department’s watershed management approach, TMDLs will be 

developed, and the corresponding pollutant loadings allocated, as part of a watershed 

management cycle that rotates through the state’s 52 river basins over a 9-year period. 

The cycle’s 5 phases are as follows: 

• Phase 1: Preliminary Watershed Evaluation. For each river basin, a Water 

Quality Status Report is developed, containing a Planning List of potentially 

impaired waters that may require the establishment of TMDLs. The report 

characterizes each basin’s hydrologic, ecological, and socioeconomic setting as well 

as historical, current, and proposed watershed management issues and activities. It 

also contains a preliminary evaluation of major water quality parameters, water 

quality issues by planning unit, ecological resources, and basinwide pollutant loading 

trends related to land uses. At the end of Phase 1, a Strategic Monitoring Plan is 

developed. 

• Phase 2: Strategic Monitoring and Assessment. Additional data are collected 

through strategic monitoring and uploaded to STORET. The data are used to verify 

whether potentially impaired waters in each basin are impaired and to calibrate and 

verify models for TMDL development. At the end of Phase 2, a Water Quality

Assessment Report is produced for each basin that contains a Verified List of 

impaired waters. The report also provides an updated and more thorough evaluation 

of water quality, associated biological resources, and current management plans. The 

Department will adopt the Verified List through a Secretarial Order and submit it to 

the EPA as the state’s Section 303(d) list of impaired waters. 

• Phase 3: Development and Adoption of TMDLs. TMDLs for priority impaired 

waters in the basin will be developed and adopted by rule. Because TMDLs cannot 

be developed for all listed waters during a single watershed management cycle due to 

fiscal and technical limitations, waterbodies will be prioritized using the criteria in the 

IWR (Rule 62-303, F.A.C.). 

• Phase 4: Development of a Basin Management Action Plan. A BMAP will be 

developed for each basin to specify how pollutant loadings from point and nonpoint 

sources will be allocated and reduced in order to meet TMDL requirements. The 

plans will include regulatory and nonregulatory (i.e., voluntary) and structural and 

nonstructural strategies, and existing management plans will be used where feasible. 

The involvement and support of affected stakeholders in this phase will be especially 

critical. 

• Phase 5: Implementation of a Basin Management Action Plan. Implementation of 

the activities specified in the BMAP will begin. This includes carrying out rule 

development as needed, securing funding, informing stakeholders and the public, and 

monitoring and evaluating the implementation of the plan. 
Water Quality Assessment Report: Florida Keys 107

To implement the watershed cycle, the state’s river basins have been divided into 

five groups within each of the Department’s six districts statewide, and each district will 

assess one basin each year. Table A.1 shows the basin groups for implementing the 

cycle in the Department’s districts, and Figure A.1 shows these groups and the rotating 

cycle in the districts. Table A.2, which lists the basin rotation schedule for TMDL 

development and implementation, shows that it will take nine years to complete one full 

cycle of the state. 

The watershed management cycle is an iterative, or repeated, process. One of its key 

components is that the effectiveness of management activities (TMDL implementation) 

will be monitored in successive cycles. Monitoring conducted in Phase 2 of subsequent 

cycles will be targeted at evaluating whether water quality objectives are being met and 

whether individual waters are no longer impaired. The Department also will track the 

implementation of scheduled restoration activities, whether required or voluntary, to 

ensure continued progress towards meeting the TMDLs. 

Table A.1: Basin Groups for Implementing the Watershed Management Cycle, by Department 

District Office 

District Group 1 

Basins 

Group 2 

Basins 

Group 3 

Basins 

Group 4 

Basins 

Group 5 

Basins 

Northwest Ochlockonee– 

St. Marks Rivers 

Apalachicola–

Chipola Rivers 

Choctawhatchee 

River and Bay–St. 

Andrew Bay 

Pensacola Bay Perdido River and 

Bay 

Northeast Suwannee River Lower St. Johns 

River – St. Marys–Nassau 

Rivers 

Northeast Coast 

Lagoons 

Central Ocklawaha River Middle St. Johns 

River 

Upper St. Johns 

River Kissimmee River Indian River Lagoon 

Southwest Tampa Bay Tampa Bay 

Tributaries 

Sarasota Bay–

Peace and Myakka 

Rivers 

Withlacoochee 

River Springs Coast 

South Everglades West 

Coast Charlotte Harbor Caloosahatchee 

River Fisheating Creek Florida Keys 

Southeast Lake Okeechobee 

St.Lucie–

Loxahatchee 

Rivers 

Lake Worth 

Lagoon–Palm 

Beach Coast 

Biscayne Bay–

Southeast Coast Everglades 

Table A.2: Basin Rotation Schedule for TMDL Development and Implementation

Year 00 01 01 02 02 03 03 04 04 05 05 06 06 07 07 08 08 09 09 10

Group 1 PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

Group 2 PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

Group 3 PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

PHASE 

1 

PHASE 

2 

PHASE 

3 

Group 4 PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

PHASE 

1 

PHASE 

2 

Group 5 PHASE 

1 

PHASE 

2 

PHASE 

3 

PHASE 

4 

PHASE 

5 

PHASE 

1 

 1st Five-Year Cycle–High-Priority Waters 2nd Five-Year Cycle–Medium-Priority Waters 

Note: Projected years for Phases 3, 4, and 5 may change due to accelerated local activities, length of plan 

development, legal challenges, etc.
108 Water Quality Assessment Report: Florida Keys 

Figure A.1: Five-Year Rotating Basin Cycle in the Department’s Six Districts 
Water Quality Assessment Report: Florida Keys 109

Pollutants can enter a waterbody through point source discharges (generally from a 

specific facility) or nonpoint discharges (e.g., stormwater runoff, septic tanks). 

Government agencies, businesses, organizations, and individuals who contribute to these 

discharges will be asked to share the responsibility of attaining TMDLs through load 

allocations (the amount of a specified pollutant allotted for discharge) that are based on 

an established TMDL. Table A.3 summarizes these potentially affected stakeholders, 

and the actions they may be asked to take to help achieve a TMDL. 

Table A.3: Potentially Affected Stakeholders and Actions To Achieve TMDLs 

Potentially Affected Stakeholders Actions To Achieve TMDL 

Municipal stormwater/wastewater programs Reduce and treat urban stormwater runoff through 

stormwater retrofits, replacement of septic tanks 

Commercial developers, homebuilders, individual 

homeowners 

Improve development design and construction, 

enhance BMPs, replace septic tanks 

Municipal and industrial wastewater treatment 

facilities, National Pollutant Discharge Elimination 

System (NPDES) permitted facilities 

Reduce pollutant loadings from permitted 

discharges 

Farming and silviculture operations Reduce and treat runoff through BMPs 

Federal, regional, state agencies; regional and 

local water quality coalitions Carry out waterbody restoration projects 

Permitting and Other Approaches 

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMITS

All point sources that discharge to surface waterbodies require an NPDES permit. 

These permits can be classified into two types: domestic or industrial wastewater 

discharge permits, and stormwater permits. NPDES-permitted point sources may be 

affected by the development and implementation of a TMDL. All NPDES permits 

include “reopener clauses” that allow the Department to incorporate new discharge limits 

when a TMDL is established. These new limitations may be incorporated into a permit 

when a TMDL is implemented or at the next permit renewal, depending on the timing of 

the permit renewal and workload. For NPDES municipal stormwater permits, the 

Department intends to insert the following statement once a BMAP is completed: 

“The permittee shall undertake those activities specified in the (Name of Waterbody) 

Basin Management Action Plan in accordance with the approved schedule set forth in the 

BMAP.” 
110 Water Quality Assessment Report: Florida Keys 

DOMESTIC AND INDUSTRIAL WASTEWATER PERMITS

In addition to NPDES-permitted facilities, all of which discharge to surface waters, 

Florida also regulates domestic and industrial wastewater discharges to ground water via 

land application. Since ground water and surface water are so intimately linked in much 

of the state, reductions in loadings from these facilities may be needed to meet TMDL 

limitations for pollutants in surface waters. If such reductions are identified in the 

BMAP, they would be implemented through modifications of the existing state permits. 

FLORIDA STORMWATER/ENVIRONMENTAL RESOURCE PERMITS

With the implementation of the state’s stormwater treatment rule in 1982, Florida 

became the first state to require the treatment of stormwater from all new development. 

Today, except in the area served by the Northwest Florida Water Management District, 

new development projects receive an Environmental Resource Permit that combines 

stormwater flood protection, stormwater treatment, and wetland protection/mitigation 

into a single permit. These permits are designed to obtain 80 percent average annual load 

reduction of total suspended solids. This level of treatment may need to be increased, 

depending on the allocation of load reductions, especially for nutrients. For example, the 

St. Johns River Water Management District recently adopted basin-specific criteria for 

the Lake Apopka watershed that require the phosphorus loading from new development 

not to exceed predevelopment phosphorus loading. 

LOCAL LAND DEVELOPMENT CODES 

Since structural stormwater treatment practices can only achieve certain levels of 

load reductions, and because the hydrologic changes accompanying urban development 

often cause ecological impacts to aquatic systems, local land development codes that 

promote “low-impact development” are an important component of restoring impaired 

waters. Local codes may need to be reviewed to determine how to promote 

developments that minimize impervious surfaces (such as reduced street widths or the use 

of pervious pavements), promote the protection of vegetation, promote the protection and 

restoration of riparian buffers along streams and lakes, and adopt the principles of the 

Florida Yards and Neighborhoods Program in local landscaping codes. 

BEST MANAGEMENT PRACTICES

Typically, BMPs refer to a practice or combination of practices that, based on sound 

science and best professional judgment, are determined to be the most effective and 

practicable means of reducing nonpoint source pollutant discharges and improving water 

quality. Both economic and technological considerations are included in the evaluation 

of what is practicable. BMPs may include structural controls (such as retention areas or 

detention ponds) or nonstructural controls (such as street sweeping or public education). 

Many BMPs have been developed for urban stormwater to reduce pollutant loadings and 

peak flows. These BMPs accommodate site-specific conditions, including soil type, 

slope, depth to ground water, and the designation of receiving waters. 
Water Quality Assessment Report: Florida Keys 111

The passage of the FWRA increased the emphasis on implementing BMPs to reduce 

nonpoint source pollutant discharges from agricultural operations. Recognizing that the 

development and adoption of BMPs might take several years, the legislature authorized 

the use of Interim Measures (IMs) during the BMP development process for agricultural 

operations. In essence, IMs are a set of logical conservation practices designed to reduce 

agricultural nonpoint pollutant discharges based on current knowledge and best 

professional judgment. These practices will evolve into more formal BMPs as better 

scientific data on their effectiveness is obtained. 

Once DACS adopts BMPs, the Department is charged with verifying their 

effectiveness in reducing agricultural nonpoint sources. Once verified, agricultural 

operations that have implemented BMPs will receive a waiver of liability and 

presumption of compliance similar to that granted a developer who obtains an 

Environmental Resource Permit. 

OTHER STRATEGIES

The success of implementing nonpoint source TMDL load allocations will require 

variety, creativity, stakeholder commitment to watershed management, and personal 

stewardship. In addition to BMPs, other possible strategies for meeting TMDLs, 

restoring water quality, and preventing the further degradation of Florida’s watersheds 

include cost sharing, waste minimization, pollution prevention, new approaches to land 

use design and development, and pollutant trading. The Department will assemble a 

Technical Advisory Committee to help develop a pollutant-trading rule, which must be 

reviewed by the legislature prior to its adoption. The Department will also continue to 

work with local stakeholders on TMDL allocation issues and implementation plans. 

Sources of Information 

For information on establishing and implementing TMDLs, contact Jan MandrupPoulsen at (850) 245-8448. Additional information is available on the Department’s Web 

site at www.dep.state.fl.us/water/watersheds/index.htm. 
112 Water Quality Assessment Report: Florida Keys 

Appendix B: Information on Reasonable Assurance 

TO: Interested Parties 

FROM: Mimi Drew, Director 

 Division of Water Facilities 

DATE: September 2002 

SUBJECT: Guidance for Development of Documentation To Provide 

Reasonable Assurance that Proposed Pollution Control Mechanisms Will Result in 

the Restoration of Designated Uses in Impaired Waters 

The purpose of this memo is to describe the types of information that should be 

considered, and subsequently documented, when evaluating whether there is sufficient 

reasonable assurance that: 

1. Proposed pollution control mechanisms (typically described in watershed 

management or restoration plans) addressing impaired waters will result in the 

attainment of applicable water quality standards (designated uses) at a clearly 

defined point in the future, and 

2. Reasonable progress towards restoration of designated uses will be made by the 

time the next 303(d) list of impaired waters is due to be submitted to the EPA. 

There are many site-specific issues related to determining whether reasonable 

assurance has been provided. Accordingly, this document describes the elements or 

issues that should be considered when evaluating a submittal or when documenting the 

basis for the Department’s decision, rather than attempting to establish specific criteria on 

what constitutes reasonable assurance. 

It should be noted that the term “reasonable assurance” is used throughout many 

Department programs and rules, and this guidance specifically addresses the issues 

related to the “reasonable assurance” provided by proposed pollution control 

mechanisms. This guidance should not be used to evaluate the meaning of reasonable 

assurance in other contexts, particularly in permitting decisions. 

Background 

The Impaired Surface Waters Rule (IWR), Rule 62-303, F.A.C. (Identification of 

Impaired Surface Waters), establishes a formal mechanism for identifying surface waters 

in Florida that are impaired (do not meet applicable water quality standards) by 

pollutants. Most waters that are verified as being impaired by a pollutant will be listed on 
Water Quality Assessment Report: Florida Keys 113

the state’s 303(d) list pursuant to the Florida Watershed Restoration Act (FWRA) and 

Section 303(d) of the Clean Water Act. Once listed, Total Maximum Daily Loads 

(TMDLs) will be developed for the pollutants causing the impairment of the listed 

waters. However, as required by the FWRA, the Department will evaluate whether 

existing or proposed pollution control mechanisms will effectively address the 

impairment before placing a water on the state’s Verified List. If the Department can 

document there is reasonable assurance that the impairment will be effectively addressed 

by the control measure, then the water will not be listed on the final Verified List (other 

impaired waters that will not be listed include waters with TMDLs and waters impaired 

by pollution). 

Current Rule Text Relating to Evaluation of Pollution Control Mechanisms 

The rule text addressing the evaluation of proposed pollution control mechanisms is 

as follows: 

Section 62-303.600, Evaluation of Pollution Control Mechanisms 

3. Upon determining that a waterbody is impaired, the Department shall evaluate 

whether existing or proposed technology-based effluent limitations and other 

pollution control programs under local, state, or federal authority are sufficient to 

result in the attainment of applicable water quality standards. 

4. If, as a result of the factors set forth in (1), the waterbody segment is expected to 

attain water quality standards in the future and is expected to make reasonable 

progress towards attainment of water quality standards by the time the next 303(d) 

list is scheduled to be submitted to EPA, the segment shall not be listed on the 

Verified List. The Department shall document the basis for its decision, noting 

any proposed pollution control mechanisms and expected improvements in water 

quality that provide reasonable assurance that the waterbody segment will attain 

applicable water quality standards. 

Responsible Parties for Reasonable Assurance Demonstration 

It is ultimately the Department’s responsibility to assure adequate documentation in 

the administrative record whenever the Department decides to not list an impaired 

waterbody segment for a given pollutant. This documentation will be very important 

because the Verified Lists will be adopted by Order of the Secretary and third parties will 

be provided an opportunity to challenge, via an administrative hearing, all listing 

decisions (both those listing a water and those to not list a water for a given pollutant). 

However, the Department expects that local stakeholders will often offer to prepare the 

necessary documentation to demonstrate reasonable assurance that proposed control 

mechanisms will restore a given waterbody. The Department will provide guidance to 

stakeholders on what information is needed and how it should be submitted. 
114 Water Quality Assessment Report: Florida Keys 

Time Frame for Development of Documentation 

The Department plans to prepare basin-specific Verified Lists as part of its 

watershed management cycle, which rotates through all of the state’s basins over a fiveyear, five-phased cycle1

. During the first phase of the cycle, the Department will assess 

water quality in the basin and prepare a draft Planning List of potentially impaired 

waters. The Department and interested parties will then have approximately one year 

(Phase 2) to monitor waters on the planning list and prepare documentation, as 

appropriate, to provide reasonable assurance that impaired waters will be restored. The 

Department will review submittals from interested parties during Phase 2, before 

adopting the Verified List for the basin containing the waterbody segment in question. 

What It Means To Be Under Local, State, or Federal Authority 

Both the FWRA and the IWR require that the pollution control programs 

under consideration be “under local, state, or federal authority.” A pollution 

control program will be considered "under local, state, or federal authority" if the 

program is subject to or required by a local ordinance, state statute or rule, or 

federal statute or regulation. 

Programs will also be considered under local, state, or federal authority if they 

are subject to a written agreement, signed by both local stakeholders and at least 

one governmental entity, that includes measurable goals, performance criteria, 

benchmarks, and back-up corrective actions to assure the further progress of the 

program. It is important to note that these written agreements do not need to be 

enforceable for nonregulated nonpoint sources. 

Many nonpoint sources are currently outside of the regulatory programs of EPA, the 

Department, and the water management districts, and reductions at these nonpoint 

sources will be voluntary. In fact, pollution control mechanisms for these nonpoint 

sources would be voluntary even if a TMDL were developed. As such, these agreements 

may provide the same level of reasonable assurance that can be provided for a TMDL 

implementation plan as long as they maintain the Department’s enforcement capability 

over all point sources involved. 

Time Frame for Attaining Water Quality Standards 

The FWRA and the IWR do not establish a specific time limit by which waters must 

attain applicable water quality standards or designated uses. However, the pollution 

control mechanisms or watershed restoration plan must provide reasonable assurance that 

designated uses will be met at some time in the future. As such, the documentation 

submitted to the Department must provide a specific date by which time designated uses 

are expected to be restored. In cases where designated uses will not be met for many 

years, the documentation should also provide justification as to why the specified time is 

needed to restore designated uses. 

 

1

 Federal regulations currently call for state 303(d) lists every two years, but Florida plans to submit annual updates 

based on the basin-specific Verified Lists. 
Water Quality Assessment Report: Florida Keys 115

Parameter-Specific Nature of Demonstration 

For the Department not to place an impaired waterbody segment on the Verified List, 

reasonable assurance must be provided for each pollutant that has been documented to be 

causing impairment of the waterbody segment. However, some entities, including the 

Department, may want to provide reasonable assurance addressing only selected 

pollutants, which could result in the Department not listing the waterbody segment for 

those pollutants, but still listing it for others. In this event, TMDLs will only be 

developed for the remaining listed pollutants. 

Information To Consider and Document when Assessing Reasonable 

Assurance in the IWR 

To provide reasonable assurance that existing or proposed pollution control 

mechanisms will restore designated uses, the following information should be evaluated 

and documented for the Administrative Record: 

5. A Description of the Impaired Water—name of the water listed on the Verified 

List, the location of the waterbody and watershed, the watershed/8-digit 

cataloging unit code, the NHD identifier (when they become available), the type 

(lake, stream, or estuary) of water, the water use classification, the designated use 

not being attained, the length (miles) or area (acres) of impaired area, the 

pollutant(s) of concern (those identified as causing or contributing to the 

impairment), and the suspected or documented source(s) of the pollutant(s) of 

concern. 

6. A Description of the Water Quality or Aquatic Ecological Goals—a 

description of the water quality–based targets or aquatic ecological goals (both 

interim and final) that have been established for the pollutant(s) of concern, the 

averaging period for any numeric water quality goals, a discussion of how these 

goals will result in the restoration of the waterbody’s impaired designated uses, a 

schedule indicating when interim and final targets are expected to be met, and a 

description of procedures (with thresholds) to determine whether additional 

(backup) corrective actions are needed. 

7. A Description of the Proposed Management Actions To Be Undertaken—

names of the responsible participating entities (government, private, others), a 

summary and list of existing or proposed management activities designed to 

restore water quality, the geographic scope of any proposed management 

activities, documentation of the estimated pollutant load reduction and other 

benefits anticipated from implementation of individual management actions, 

copies of written agreements committing participants to the management actions, 

a discussion on how future growth and new sources will be addressed, confirmed 

sources of funding, an implementation schedule (including interim milestones and 
116 Water Quality Assessment Report: Florida Keys 

the date by which designated uses will be restored), and any enforcement 

programs or local ordinances, if the management strategy is not voluntary. 

8. A Description of Procedures for Monitoring and Reporting Results—a 

description of the water quality monitoring program to be implemented (including 

station locations, parameters sampled, and sampling frequencies) to demonstrate 

reasonable progress; quality assurance/quality control elements that demonstrate 

the monitoring will comply with Rule 62-160, F.A.C.; procedures for entering all 

appropriate data into STORET; the responsible monitoring and reporting entity; 

the frequency and format for reporting results; the frequency and format for 

reporting on the implementation of all proposed management activities; and 

methods for evaluating progress towards goals. 

9. A Description of Proposed Corrective Actions—a description of proposed 

corrective actions (and any supporting document[s]) that will be undertaken if 

water quality does not improve after implementation of the management actions 

or if management actions are not completed on schedule, and a process for 

notifying the Department that these corrective actions are being implemented. 

Water Quality–Based Targets and Aquatic Ecological Goals 

Some of the most important elements listed above are the requirements to provide 

water quality–based targets or aquatic ecological goals and a discussion on how resultant 

pollutant(s) reduction targets/goals will result in restoration of designated uses. Some 

people have expressed concern about these targets because they equate a water quality–

based restoration target with a TMDL (thus assuming a “Catch 22” that a TMDL is 

needed to make a demonstration that a TMDL is not needed). However, as is also the 

case for TMDLs, water quality–based targets can take many forms, and need not be a 

result of a complex hydrodynamic/water quality model. 

In some cases, there may be sufficient historical data (paleolimnological data, 

loadings from periods predating the impairment, or baseline data for Outstanding Florida 

Waters2

, for example) that could be used to determine an appropriate water quality target. 

In other cases, simplified modeling (including regression analysis) may allow for 

conservative estimates of the assimilative capacity that could then be used as the basis for 

restoration goals. And, finally, a water quality target may have been developed that 

would be scientifically equivalent to (or act as the basis for) a TMDL, but the target has 

not been administratively adopted as a TMDL. In each of these cases, a sound water 

quality target could be used to evaluate whether the proposed pollution control 

mechanisms will sufficiently reduce loadings to meet the assimilative capacity of the 

water in question and result in attainment of designated uses. 

 

2

 Baseline data would be data for the year prior to designation of the OFW. 
Water Quality Assessment Report: Florida Keys 117

Interim Targets 

Because it will usually take many years to restore fully the designated uses of an 

impaired water, interim water quality targets will often be needed to measure whether 

reasonable progress is being made towards the restoration of designated uses. Examples 

of such interim targets are provided in the last section of this document, but site-specific 

measures are also encouraged. 

Averaging Periods for Water Quality Targets 

While the averaging period for water quality–based targets should be consistent with 

how the underlying standard is expressed, they can often be expressed in a variety of 

ways and need not be expressed as “daily loads.” Annual averages or medians are often 

appropriate for some parameters, but shorter-term (seasonal, for example) averages may 

be necessary if the impairment is limited to specific seasons or parts of the year. Multiyear averages may be appropriate in limited circumstances where there is naturally high 

variation of the water quality target. 

Estimates of Pollutant Reductions from Restoration Actions 

It will often be difficult to estimate precisely the pollutant reductions that will result 

from specific restoration activities. This is particularly true for the implementation of 

best management practices (BMPs). However, to provide reasonable assurance that a 

BMP or other restoration action will reduce loadings of the pollutant of concern to a level 

that will restore the water’s designated uses, documentation should address how the 

reductions were calculated, including providing documented values from the scientific 

literature for reductions attributed to similar management actions. If the expected 

reductions are expressed as a range, the midpoint of the range should be used as the basis 

for estimating reductions, unless documentation is provided supporting the use of 

different removal efficiencies in this specific application. 

New Sources/Growth 

Another key element is the discussion on how future growth and new sources will be 

addressed. Restoration goals must address possible increased loadings of the pollutant of 

concern that are anticipated due to population growth or land use changes in contributing 

watersheds, both from point and nonpoint sources. This will be particularly important for 

waters impaired by nutrients, given that so many Florida watersheds are faced with 

continuing urban, residential, and agricultural development that results in increased 

nutrient loading from stormwater, septic tanks, and wastewater discharges. 
118 Water Quality Assessment Report: Florida Keys 

Examples of Reasonable Progress 

The determination of whether there will be reasonable progress towards attainment 

of water quality standards will be very site- and pollutant-specific. Documentation 

should be provided supporting specific progress towards restoration of the designated 

uses of the impaired water. Possible examples of reasonable progress include, but are not 

limited to the following: 

• A written commitment to implement controls reducing loadings within a specified 

time frame from watershed stakeholders representing at least 50 percent of the 

anthropogenic load of the pollutant(s) of concern; 

• Evidence of at least a 10 percent reduction (or alternatively, a percent reduction 

consistent with meeting the water quality target by the specified date) in annual 

anthropogenic loading of the pollutant(s) of concern; 

• Evidence of at least a 10 percent decrease (or alternatively, a percent decrease 

consistent with meeting the water quality target by the specified date) in the annual 

average concentration of the pollutant(s) of concern in the water; 

• Bioassessment results showing there has been an improvement in the health of the 

biological community of the water, as measured by bioassessment procedures similar 

to those used to determine impairment and conducted in similar conditions; or 

• Adoption of a local ordinance that specifically provides water quality goals, restricts 

growth or loads tied to the pollutant(s) of concern, and provides an enforcement 

option if the proposed management measure(s) are not implemented as required. 

Reasonable progress must be made by the time the next 303(d) list is due to be 

submitted to EPA, which is currently every two years. EPA has contemplated changing 

the listing cycle to every four or five years, and the IWR was specifically worded to 

allow a longer time frame for requiring reasonable progress in the event that the listing 

cycle changes. 

Long-Term Requirements

If at any time the Department determines that reasonable assurance and reasonable 

progress are not being met, the order adopting the Verified List will be amended to 

include the waterbody on the Verified List for the pollutant(s) in question. Additional 

reasonable progress must be made each time a waterbody is considered for listing under 

Rule 62-303, F.A.C. (every five years). 

If you have any questions about this guidance memo, contact Daryll Joyner of the 

Department’s Bureau of Watershed Management in Tallahassee at 850-245-8431. 
Water Quality Assessment Report: Florida Keys 119

Appendix C: Methodology for Determining Impairment Based 

on the Impaired Surface Waters Rule 

The Impaired Surface Waters Rule 

To identify impaired waters in each of the state’s river basins, the Florida 

Department of Environmental Protection (Department) evaluates water quality data using 

the science-based methodology in the Identification of Impaired Surface Waters Rule 

(IWR) (Rule 62-303, Florida Administrative Code [F.A.C.]). The rule establishes 

specific criteria and thresholds for impairment, in addition to data sufficiency and data 

quality requirements. The methodology described in the rule is based on a statistical 

approach designed to provide greater confidence that the outcome of the water quality 

assessment is correct. The complete text of the IWR is available at 

http://www.dep.state.fl.us//legal/Rules/shared/62-303/62-303.pdf. 

As part of the watershed management approach, for each river basin in the state the 

Department will follow the methodology in Section 62-303.300, F.A.C., to develop a 

Planning List of potentially impaired waters to be assessed under Subsections 403.067(2) 

and (3), Florida Statutes (F.S.). The methodology for developing the Planning List 

includes an evaluation of aquatic life use support, primary contact and recreational use 

support, fish and shellfish consumption use support, drinking water use support, and 

protection of human health. Data older than 10 years cannot be used to evaluate water 

quality criteria exceedances for the Planning List. As required by Subsection 403.067(2), 

F.S., the Planning List will not be used to administer or implement any regulatory 

program, and is submitted to the U. S. Environmental Protection Agency (EPA) for 

informational purposes only. 

After further assessment, using the methodology in Part III, Section 62-303.400, 

F.A.C., the Department will determine if waters on the Planning List are, in fact, 

impaired and if the impairment is caused by pollutant discharges. These waters are 

placed on a Verified List. The criteria for the Verified List are more stringent than those 

for the Planning List. Data older than 7.5 years should not be used to verify impairment. 

The Verified List will be adopted by Secretarial Order and forwarded to the EPA for 

approval as Florida’s Section 303(d) list of impaired waters. The Department will 

develop TMDLs for these waters under Subsection 403.067(4), F.S. 

Attainment of Designated Use(s) 

While the designated uses of a given waterbody are established using the surface 

water quality classification system described previously, it is important to note that the 

EPA uses slightly different terminology in its description of designated uses. Because the 

Department is required to provide use attainment status for both the state’s 305(b) report 

and the state’s 303(d) list of impaired waters, the Department uses EPA terminology 

when assessing waters for use attainment. The water quality evaluations and decision 

processes for listing impaired waters that are defined in Florida’s IWR are based on the 

following designated use attainment categories: 
120 Water Quality Assessment Report: Florida Keys 

Aquatic Life Use Support-Based Attainment 

Primary Contact and Recreation Attainment 

Fish and Shellfish Consumption Attainment 

Drinking Water Use Attainment 

Protection of Human Health 

Table C.1 summarizes the designated uses assigned to Florida’s various surface 

water classifications. 

Table C.1: Designated Use Attainment Categories for Surface Waters in Florida 

Designated Use Attainment Category Used in 

IWR Evaluation Applicable Florida Surface Water Classification 

Aquatic Life Use Support-Based Attainment Class I, II, and III 

Primary Contact and Recreation Attainment Class I, II, and III 

Fish and Shellfish Consumption Attainment Class II 

Drinking Water Use Attainment Class I 

Protection of Human Health Class I, II, and III 

Sources of Data 

The Department’s assessment of water quality for each basin statewide includes an 

analysis of quantitative data from a variety of sources, many of which are readily 

available to the public. These sources include the EPA’s Legacy and modernized 

STOrage and RETrieval (STORET) databases, the U. S. Geological Survey (USGS), the 

Department, the Florida Department of Health (FDOH), the water management districts, 

local governments, and volunteer monitoring groups. 

Historically, the Department carried out statewide water quality assessments using 

data available in the EPA’s Legacy STORET Database; STORET makes up 

approximately 60 percent of the statewide data used in the IWR assessment. The Legacy 

STORET dataset is a repository of data collected and uploaded by numerous 

organizations through 1999. The Legacy STORET Database can be accessed at 

http://www.dep.state.fl.us/water/storet/index.htm. 

In 2000, the EPA created a modernized version of STORET that included new 

features designed to address data quality assurance/quality control concerns (see the new 

STORET Web site at http://www.epa.gov/storet/. However, because of software 

difficulties associated with batch uploading of data to the modernized STORET, the data 

being uploaded to the national repository decreased dramatically, and lingering problems 

have temporarily reduced STORET’s importance as a statewide data source. It houses 

only about 5 percent of the statewide IWR Database. 

Approximately 35 percent of the data used in the IWR assessment was provided by 

individual organizations that for various reasons, such as time constraints or resource 

limitations, were not able to enter their data into the national database. The organizations 

providing the largest datasets include the South Florida, Southwest Florida, and St. Johns 

River Water Management Districts; the USGS; and the University of Florida LakeWatch 

volunteer monitoring group. Several of these databases are readily available to the public 
Water Quality Assessment Report: Florida Keys 121

via the Internet: the South Florida Water Management District at 

http://www.envirobase.usgs.gov/, the USGS at http://water.usgs.gov/, and LakeWatch at 

http://lakewatch.ifas.ufl.edu/. 

The Department created the IWR Database in 2002 to evaluate data simultaneously 

in accordance with the IWR methodology for every basin in the state, based on the 

appropriate data “window.” For the Verified List assessment, the window is 7.5 years 

(for the IWR Database), and the Planning List assessment window is 10 years. Table 

C.2 shows the periods of record for the Verified and Planning Lists for the five basin 

groups. 

The evaluation of water quality in the state’s basins also includes some qualitative 

information. These sources are described in the Water Quality Status Reports and Water 

Quality Assessment Reports for each basin. 

Table C.2: Data Used in Developing the Planning and Verified Lists, First Basin Rotation Cycle 

Basin Group Reporting Period of Data Record Used in IWR 

Evaluation 

Group 1 Planning List January 1, 1989–December 31, 1998 

 Verified List January 1, 1995–June 30, 2002 

Group 2 Planning List January 1, 1991–December 31, 2000 

 Verified List January 1, 1996–June 30, 2003 

Group 3 Planning List January 1, 1992–December 31, 2001 

 Verified List January 1, 1997–June 30, 2004 

Group 4 Planning List January 1, 1993–December 31, 2002 

 Verified List January 1, 1998–June 30, 2005 

Group 5 Planning List January 1, 1994–December 31, 2003 

 Verified List January 1, 1999–June 30, 2006 

Note: Typically, a 10-year data record is used for the development of the Planning Lists, and a 7.5-

year record is used for the Verified Lists. 

Methodology 

To determine the status of surface water quality in individual river basins in Florida, 

three categories of data—chemistry data, biological data, and fish consumption 

advisories—were evaluated to determine potential impairments for the four designated 

use attainment categories discussed earlier: aquatic life, primary contact and recreation, 

fish and shellfish consumption, drinking water use, and protection of human health. 

Aquatic Life Based Attainment 

The IWR follows the principle of independent applicability. A waterbody is listed 

for potential impairment of aquatic life use support based on exceedances of any one of 

four types of water quality indicators (numeric water quality criteria, nutrient thresholds, 

biological thresholds, and toxicity data). 
122 Water Quality Assessment Report: Florida Keys 

EXCEEDANCES OF NUMERIC WATER QUALITY CRITERIA

The chemistry data from STORET used in evaluating impairment were also used for 

preparing the state’s 305(b) report. Only ambient surface water quality stations were 

included in the assessment of impairment. Water quality information from point sources 

or wells was excluded. Monitoring stations were classified as one of five waterbody 

types—spring, stream, lake, estuary, or blackwater—based on criteria described in the 

latest 305(b) report. The assessments included the following parameters: 

Metals Arsenic, aluminum, cadmium, chromium VI, chromium III, 

copper, iron, lead, mercury, nickel, selenium, silver, 

thallium, and zinc 

Nutrients Chlorophyll a for streams and estuaries, and Trophic State 

Index (TSI) (chlorophyll a, total nitrogen, and total 

phosphorus) for lakes 

Conventionals Dissolved oxygen (DO), fecal coliform, total coliform, pH, 

unionized ammonia 

The requirements for placing waters on the Planning List included a minimum of 10 

temporally independent samples from the 10-year period of record shown in Table C.2,

unless there were 3 exceedances of water quality or 1 exceedance of an acute toxicity 

criterion in a 3-year period. The screening methodology for the Verified List requires at 

least 20 samples from the last 5 years preceding the Planning List assessment. An 

exceedance, meaning that water quality criteria or standards are not met, is recorded any 

time the criterion is exceeded by any amount. An exceedance for DO, however, means 

that a waterbody does not meet the DO criterion, rather than an actual exceedance of the 

criterion. 

To determine if a water should be placed on the Planning List for each parameter, the 

chemical data were analyzed using a computer program written to assess the data, based 

on criteria established in the IWR, with two exceptions. First, unionized ammonia data 

were not analyzed by the program, but rather with an Excel spreadsheet. Second, 

because the full complexity of the pH criterion could not be programmed, the incomplete 

listings for pH are not included. They will be further examined while additional data are 

collected during Phase 2 of the watershed management cycle. Data analysis and 

statistical summaries of waterbody identification numbers (WBIDs), waterbody types, 

and parameters obtained from the STORET Database were conducted using Access, SAS 

statistical software, and ArcView geographic information system (GIS) applications. 

The data for metals and conventional parameters were compared with the state 

surface water quality criteria in Section 62-302.530, F.A.C. (IWR). The rule contains a 

table of sample numbers versus exceedances. A waterbody was placed on the Planning 

List if there was at least 80 percent confidence that the actual criteria exceedance rate was 

greater than or equal to 10 percent. To be placed on the Verified List, at least a 90 

percent confidence rate was required. 
Water Quality Assessment Report: Florida Keys 123

EXCEEDANCES OF NUTRIENT THRESHOLDS

The state currently has a narrative nutrient criterion instead of a numeric value for 

nutrient thresholds. The narrative criterion states, “In no case shall nutrient 

concentrations of a body of water be altered so as to cause an imbalance in natural 

populations of aquatic flora or fauna.” The IWR provides an interpretation of the 

narrative nutrient criterion. In general, the TSI and the annual mean chlorophyll a values 

are the primary means for assessing whether a waterbody should be assessed further for 

nutrient impairment. 

The rule also considers other information that might indicate an imbalance in flora or 

fauna due to nutrient enrichment, such as algal blooms, excessive macrophyte growth, a 

decrease in the distribution (either in density or aerial coverage) of seagrasses or other 

submerged aquatic vegetation, changes in algal species richness, and excessive diel 

oxygen swings. 

Potential nutrient impairment was evaluated by calculating annual mean chlorophyll 

a values for estuaries and streams and the TSI for lakes. For lakes, the TSI was 

calculated using chlorophyll a, total phosphorus, and total nitrogen measurements. Direct 

evidence of imbalances of flora and fauna in waterbodies was also considered in the 

evaluation of nutrient impairments. 

In estuarine areas, a water was considered nutrient enriched if the annual mean 

chlorophyll a values were greater than 11 micrograms per liter (μg/L), or if annual mean 

chlorophyll a values increased by more than 50 percent over historical values for at least 

two consecutive years. For streams, a water was considered nutrient enriched if the 

annual mean chlorophyll a values were greater than 20 μg/L, or if the annual mean 

increased by more than 50 percent over historical values for at least two consecutive 

years. 

A lake with a mean color greater than 40 platinum cobalt units (PCUs) was 

considered nutrient enriched if the annual mean TSI exceeded 60. A lake with a mean 

color less than or equal to 40 PCUs was considered nutrient enriched if the annual mean 

TSI exceeded 40. In addition, a lake was considered nutrient enriched if there was an 

increase in TSI over the 1989 to 2000 period, or if TSI measurements were 10 units 

higher than historical values. 

EXCEEDANCES OF BIOLOGICAL THRESHOLDS

Bioassessments were carried out for streams, lakes, canals, and rivers using the IWR 

as guidance and following the Department’s standard operating procedures, which 

provide definitions and specific methods for the generation and analysis of bioassessment 

data. These are referenced in the individual bioassessment data tables contained in the 

Status Reports. The purpose behind using a bioassessment methodology in surface water 

characterizations is that biological components of the environment manifest long-term 

water quality conditions and thus provide a better indication of a waterbody’s true health 

than discrete chemical or physical measurements alone. Similar to water quality criteria, 

bioassessment methods involve the identification of a biological reference condition, 

based on data from unimpaired or least impacted waters in a given region. 
124 Water Quality Assessment Report: Florida Keys 

For the Planning and Verified List assessments, the reference condition data were 

used to establish expected scores, ranging from best to worst, for various measures of 

community structure and function, such as numbers or percentages of particular species 

or feeding groups. Data on community structure and function from waters of unknown 

quality in the same region as reference waters were compared with the expected scores of 

metrics to evaluate their biological integrity. 

Metrics (e.g., number of taxa, percent Diptera, percent filter feeders) were used 

independently and as an aggregated group called an index. Indices have advantages over 

individual metrics in that they can integrate several related metrics into one score that 

reflects a wider range of biological variables. A number of bioassessment metrics and 

indices exist for assessing populations of plant and animal life, including fish, diatoms 

(e.g., microscopic algae and unicellular plankton), and macroinvertebrates (e.g., insects, 

crayfish, snails, and mussels). 

Only macroinvertebrate data from ambient sites in state surface waters were used in 

the bioassessments analyzed for the Planning and Verified Lists. The data included sites 

designated as test and background sites for National Pollutant Discharge Elimination 

System (NPDES) fifth-year inspections, but excluded data from effluent outfalls from 

discharging facilities, or data from monitoring sites not clearly established to collect 

ambient water quality data. Because site-specific habitat and physicochemical 

assessment information (e.g., percent suitable macroinvertebrate habitat, water velocities, 

extent of sand or silt smothering, and riparian [Definition: Of, on, or relating to the 

banks of a natural course of water.] buffer zone widths) was not available at the time of 

reporting, it was not included. However, this information is instrumental in pinpointing 

the causes for failed bioassessment metrics and will be included in future reporting. 

The data used to develop the Planning and Verified Lists were obtained from the 

Department’s Biological Database (SBIO) and the EPA’s STORET Water Quality 

Database, where it could be substantiated that the data were generated in compliance with 

the bioassessment standard operating procedures referenced in the IWR (Section 62-

303.330, F.A.C.). 

The data from these databases are used without regard to the randomness of sample 

site selection. For the purposes of the Status Reports, the seasons are defined as follows: 

winter (1/1–3/31), spring (4/1–6/30), summer (7/1–9/30), and fall (10/1–12/31). Wet 

seasons are generally spring and summer, and dry seasons are fall and winter, although 

conditions can vary in the state as a whole. 

LAKE CONDITION INDEX

The scoring of the individual metrics of the Lake Condition Index (LCI), except 

percent Diptera, was performed according to the following formula: 

100(B/A) where A = the 95 percentile of the reference population and B = observed 

value 
Water Quality Assessment Report: Florida Keys 125

For percent Diptera, the following formula was used: 

100 (100-B)/(100-A) where A = the 95 percentile of the reference population and B 

= observed value 

An average LCI score was calculated by averaging the scores of the six metrics in 

the method: total number of taxa; total number of taxa belonging to the orders 

Ephemeroptera, Odonata, and Trichoptera (EOT taxa); percent EOT taxa; ShannonWiener Diversity Index score; Hulbert Index score; and percent Dipteran individuals. 

LCI calculations were only provided for clear lakes (< 20 PCUs). As macroinvertebratebased indices have not been shown to assess colored lakes in Florida accurately (> 20 

PCUs), they have been excluded from bioassessments. A poor or very poor rating based 

on the average score constituted a failed bioassessment, based on the IWR. 

STREAM CONDITION INDEX

A total Stream Condition Index (SCI) score was calculated by adding the scores of 

the seven metrics in the method: total number of taxa; total number of taxa belonging to 

the orders Ephemeroptera, Plecoptera, and Trichoptera (EPT taxa); percent Chironomid 

taxa; percent dominant taxa; percent Diptera; percent filter feeders; and Florida Index. A 

poor or very poor rating based on the total score constituted a failed bioassessment, based 

on the IWR. The Water Quality Status Reports contain definitions and specific methods 

for the generation and analysis of bioassessment data. 

BIORECON

To establish an impairment rating based on BioRecon data, three metrics were used: 

the Florida Index score, total number of taxa, and total number of EPT taxa. If all three 

metrics failed to meet thresholds, the water was deemed “impaired” based on the IWR. 

BIOLOGICAL INTEGRITY STANDARD 

Quantitative data, generated through the use of Hester-Dendy artificial substrate 

samplers, were used to calculate Shannon-Wiener Diversity Index scores for paired 

background and test sites, as specified in the Biological Integrity Standard of Subsection 

62-302.530(11), F.A.C. One failure of the standard meant that a waterbody segment was 

listed as potentially impaired. 

EVALUATION OF TOXICITY DATA

Although the IWR describes the use of toxicity data for the assessment of aquatic 

life-based attainment, no ambient toxicity data are available for assessment and this 

metric was not used. 
126 Water Quality Assessment Report: Florida Keys 

Primary Contact and Recreation Attainment 

For Class I, II, or III waters, a waterbody was potentially impaired if the following 

criteria were met: 

• The waterbody segment did not meet the applicable water quality criteria for 

bacteriological quality, 

• The waterbody segment included a bathing area that was closed by a local health 

department or county government for more than 1 week or more than once during a 

calendar year based on bacteriological data, 

• The waterbody segment included a bathing area for which a local health department 

or county government issued closures, advisories, or warnings totaling 21 days or 

more during a calendar year based on bacteriological data, or 

• The waterbody segment included a bathing area that was closed or had advisories or 

warnings for more than 12 weeks during a calendar year based on previous 

bacteriological data or on derived relationships between bacteria levels and rainfall or 

flow. 

Fish and Shellfish Consumption Attainment 

For Class I, II, or III waters, a waterbody was potentially impaired if it did not meet 

the applicable Class II water quality criteria for bacteriological quality, or if a fish 

consumption advisory had been issued. Fish consumption advisories were based on the 

FDOH’s “limited consumption” or “no consumption” advisories for surface waters 

because of high levels of mercury in fish tissue. In addition, for Class II waters, 

waterbody segments that had been approved for shellfish harvesting but were 

downgraded to a more restrictive classification were listed as potentially impaired. 

Drinking Water Attainment and Protection of Human Health 

For Class I waters, a waterbody was potentially impaired if it did not meet the 

applicable Class I water quality criteria. 
Water Quality Assessment Report: Florida Keys 127

Appendix D: Integrated Assessment (Master List) for the Florida 

Keys Basin 

Data collected since the 1996 305(b) Report update of the 303(d) list were used to 

update the listing status of waters. Table D.1 contains the listing status of all assessed 

waters in the basin as of June 30, 2006. All of the waters in the table are Class III marine 

water. It should be noted that subsequent to the 2004 update of the 303(d) list, some 

waterbody segments were further subdivided to produce separate segments for islands, 

embayments and beaches versus their surrounding watersheds. Therefore, Table D.1 

shows the waterbody identification numbers (WBIDs) under which these segments were 

designated in the 1998 303(d) list, as well as the new or currently recognized WBIDs for 

them. 

Information in this appendix was obtained from an inventory of the Legacy and 

modernized STORET databases, as well as data contributed directly to the Florida 

Department of Environmental Protection (Department) by individual data providers. 

Table D.2 includes only stations with data from the Planning and Verified assessment 

periods. 
128 Water Quality Assessment Report: Florida Keys 

Table D.1: Integrated Water Quality Report (Master List) for the Florida Keys Basin, by Planning Unit 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

LOWER KEYS PLANNING UNIT 6018 BAHIA 

HONDA STATE PARK 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6018 BAHIA 

HONDA STATE PARK 

COASTAL Fecal 

Coliform 

NI 2 PP = 2 

6018 BAHIA 

HONDA STATE PARK 

COASTAL Nutrients 

(Historic Chla) 

ND 3a PP = N
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8072 DRY 

TORTUGAS GULF 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L). analys

8072 DRY 

TORTUGAS GULF 

COASTAL Turbidity NI 2 PP = 0 

8072 DRY 

TORTUGAS GULF 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 0 

8072 DRY 

TORTUGAS GULF 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8073 KEY WEST 

GULF 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 0 

8073 KEY WEST 

GULF 

COASTAL pH ID 3b PP = 0 

8073 KEY WEST 

GULF 

COASTAL Zinc ID 3b VP = 0 

8073 KEY WEST 

GULF 

COASTAL Turbidity NI 2 PP = 1 

8073 KEY WEST 

GULF 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 
130 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8073 KEY WEST 

GULF 

COASTAL Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

8073 KEY WEST 

GULF 

COASTAL Iron ID 3b VP = 1 

8073 KEY WEST 

GULF 

COASTAL Fecal 

Coliform 

IM 5 Low 2017 PP = 3

8073 KEY WEST 

GULF 

COASTAL Cadmium ID 3b VP = 0 

8073 KEY WEST 

GULF 

COASTAL Lead ID 3b VP = 1 

8073 KEY WEST 

GULF 

COASTAL Copper ID 3b VP = 2 

8073 KEY WEST 

GULF 

COASTAL Chromium3 ID 3b VP = 0 

8073 KEY WEST 

GULF 

COASTAL Conductance ND 3a VP=no 

standa
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8073 KEY WEST 

GULF 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.249 (1.139 (1.033 TN (0.2threshomg/L) d0.19 mexceed indicatphosph= 21.2318.533observ

8073 KEY WEST 

GULF 

COASTAL Arsenic ID 3b PP = 0 

8073 KEY WEST 

GULF 

COASTAL Alkalinity ND 3a VP=no 

standa

8074 FLORIDA 

KEYS GULF 1 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8074 FLORIDA 

KEYS GULF 1 

COASTAL Turbidity NI 2 PP = 0 

8074 FLORIDA 

KEYS GULF 1 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 

8074 FLORIDA 

KEYS GULF 1 

COASTAL Conductance ND 3a PP=no 

standaFlorida 
132 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8074 FLORIDA 

KEYS GULF 1 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.488 (1.376 (1.186 (0.23 mthreshomg/L) d0.19 mWBID limited standa4.211 - 

8074 FLORIDA 

KEYS GULF 1 

COASTAL Arsenic ID 3b PP = 0 

8074 FLORIDA 

KEYS GULF 1 

COASTAL pH ID 3b PP = 0 

8074 FLORIDA 

KEYS GULF 1 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 7 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Turbidity NI 2 PP = 0 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8075 FLORIDA 

KEYS GULF 2 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 2

8075 FLORIDA 

KEYS GULF 2 

COASTAL pH NI 2 PP = 0 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.249 (1.485 (1.101 TN (0.2threshomg/L) d0.19 mWBID limited standa5.212 - 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Arsenic ID 3b PP = 0 

8075 FLORIDA 

KEYS GULF 2 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8079 NAS KEY 

WEST OCEAN 

COASTAL Fecal 

Coliform 

ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL pH ID 3b VP = 0 
134 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8079 NAS KEY 

WEST OCEAN 

COASTAL Zinc ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8079 NAS KEY 

WEST OCEAN 

COASTAL Iron ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Cadmium ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Lead ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

8079 NAS KEY 

WEST OCEAN 

COASTAL Copper ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Chromium3 ID 3b VP = 0 

8079 NAS KEY 

WEST OCEAN 

COASTAL Conductance ND 3a VP=no 

standa
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8079 NAS KEY 

WEST OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2(1.004 TN (0.3threshodoes nmg/L. Bexceed indicatphosph= 19.076.1270observ

8079 NAS KEY 

WEST OCEAN 

COASTAL Alkalinity ND 3a VP=no 

standa

8079 NAS KEY 

WEST OCEAN 

COASTAL Arsenic ID 3b VP = 0 

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Fecal 

Coliform 

NI 2 PP = 1 

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL pH ID 3b PP = 0 
136 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

8080 NEWFOUND 

HARBOR KEYS OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

6012A BIG PINE 

KEY 

COASTAL Iron NI 2 VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6012A BIG PINE 

KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6012A BIG PINE 

KEY 

COASTAL Zinc NI 2 VP = 0 

6012A BIG PINE 

KEY 

COASTAL Lead NI 2 VP = 0 

6012A BIG PINE 

KEY 

COASTAL Copper IM 5 Medium 2012 PP = N

6012A BIG PINE 

KEY 

COASTAL Cadmium NI 2 VP = 0 

6012A BIG PINE 

KEY 

COASTAL pH NI 2 VP = 1 
138 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6012A BIG PINE 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6012A BIG PINE 

KEY 

COASTAL Conductance ND 3a VP=no 

standa

6012A BIG PINE 

KEY 

COASTAL Arsenic NI 2 VP = 0 

6012A BIG PINE 

KEY 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 1

6012A BIG PINE 

KEY 

COASTAL Fecal 

Coliform 

NI 2 VP = 1 

6012B BAHIA 

HONDA BAYSIDE 

BEACH Bacteria NI 2 Medium 2012 Beach 

2005 

6012C NO NAME 

KEY 

COASTAL Dissolved 

Oxygen 

ID 3b VP = 3 

6012C NO NAME 

KEY 

COASTAL pH ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6012C NO NAME 

KEY 

COASTAL Zinc ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Lead ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Copper ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Cadmium ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Fecal 

Coliform 

ID 3b VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6012C NO NAME 

KEY 

COASTAL Conductance ND 3a VP=no 

standa

6012C NO NAME 

KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6012C NO NAME 

KEY 

COASTAL Arsenic ID 3b VP = 0 

6012C NO NAME 

KEY 

COASTAL Iron ID 3b VP = 0 
140 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6012D LONG 

BEACH 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6012D LONG 

BEACH 

COASTAL Nutrients 

(Historic Chla) 

ND 3a PP = N

6012E BIG TORCH 

KEY 

COASTAL Nutrients 

(Chla) 

ND 3a No ann

availab

6012E BIG TORCH 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ND 3a PP = N

6013A SADDLEBUN

CH KEYS 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6013A SADDLEBUN

CH KEYS 

COASTAL Turbidity ID 3b PP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Iron ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Fecal 

Coliform 

ID 3b VP = 1 

6013A SADDLEBUN

CH KEYS 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 3

6013A SADDLEBUN

CH KEYS 

COASTAL Copper ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Zinc ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Cadmium ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Lead ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL Conductance ND 3a PP=no 

standaFlorida 
142 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6013A SADDLEBUN

CH KEYS 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6013A SADDLEBUN

CH KEYS 

COASTAL Arsenic ID 3b VP = 0 

6013A SADDLEBUN

CH KEYS 

COASTAL pH ID 3b PP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6013B SUGARLOAF COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6013B SUGARLOAF COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6013C CUDJOE 

KEY 

COASTAL Fecal 

Coliform 

NI 2 VP = 0 

6013C CUDJOE 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6013C CUDJOE 

KEY 

COASTAL Iron ID 3b VP = 0 
144 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6013C CUDJOE 

KEY 

COASTAL Conductance ND 3a VP=no 

standa

6013C CUDJOE 

KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6013C CUDJOE 

KEY 

COASTAL Arsenic ID 3b VP = 0 

6013C CUDJOE 

KEY 

COASTAL Zinc ID 3b VP = 0 

6013C CUDJOE 

KEY 

COASTAL Lead ID 3b VP = 0 

6013C CUDJOE 

KEY 

COASTAL Copper IM 5 Medium 2012 PP = N
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6013C CUDJOE 

KEY 

COASTAL Cadmium ID 3b VP = 0 

6013C CUDJOE 

KEY 

COASTAL pH NI 2 VP = 0 

6013C CUDJOE 

KEY 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 1

6013D LITTLE 

KNOCKEMDOWN KEY 

COASTAL Nutrients 

(Historic Chla) 

ND 3a PP = N

6013D LITTLE 

KNOCKEMDOWN KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B
146 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014A KEY WEST COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6014A KEY WEST COASTAL Iron NI 2 PP = 0 6014A KEY WEST COASTAL Methyl 

Chloride 

ID 3b PP = 0 

6014A KEY WEST COASTAL pH NI 2 PP = 0 6014A KEY WEST COASTAL Trichlorethyle

ne 

ID 3b PP = 0 

6014A KEY WEST COASTAL Fecal 

Coliform 

IM 5 Low 2017 PP = 4

6014A KEY WEST COASTAL Manganese ND 3a PP=no 

standaFlorida 

6014A KEY WEST COASTAL Nitrate ND 3a VP=no 

standa

6014A KEY WEST COASTAL Tetrachloroet

hylene 

ID 3b PP = 0 

6014A KEY WEST COASTAL Turbidity NI 2 PP = 0 6014A KEY WEST COASTAL Unionized 

Ammonia 

ND 3a PP=no 

standa

6014A KEY WEST COASTAL Zinc NI 2 PP= 0 6014A KEY WEST COASTAL Fluoride ID 3b PP = 0 6014A KEY WEST COASTAL Cadmium ID 3b PP = 0 6014A KEY WEST COASTAL Lead NI 2 PP = 0 6014A KEY WEST COASTAL Selenium ID 3b PP = 0 6014A KEY WEST COASTAL Bromoform ID 3b PP = 0 6014A KEY WEST COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

6014A KEY WEST COASTAL Aluminum ID 3b PP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014A KEY WEST COASTAL Alkalinity ND 3a PP= 0 6014A KEY WEST COASTAL Barium ND 3a PP=no 

standaFlorida 

6014A KEY WEST COASTAL Chloroform ID 3b PP = 0 6014A KEY WEST COASTAL Methylene 

Chloride 

ID 3b PP = 0 

6014A KEY WEST COASTAL Copper IM 5 Medium 2012 PP = N6014A KEY WEST COASTAL Arsenic NI 2 PP = 0 6014A KEY WEST COASTAL Dichloroethyl

ene 

ID 3b PP = 0 
148 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014A KEY WEST COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6014A KEY WEST COASTAL Carbon 

Tetrachloride 

ID 3b PP = 0 

6014A KEY WEST COASTAL Chromium3 ID 3b VP = 0 6014A KEY WEST COASTAL Conductance ND 3a PP=no 

standaFlorida 

6014A KEY WEST COASTAL Chloride ID 3b PP=no 

standaFlorida 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014A KEY WEST COASTAL Dissolved 

Solids 

ND 3a PP=no 

standaFlorida 

6014B STOCK 

ISLAND 

COASTAL Fecal 

Coliform 

ID 3b VP = 1 

6014B STOCK 

ISLAND 

COASTAL Conductance ND 3a VP=no 

standa

6014B STOCK 

ISLAND 

COASTAL pH NI 2 VP = 0 

6014B STOCK 

ISLAND 

COASTAL Zinc ID 3b VP = 0 

6014B STOCK 

ISLAND 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6014B STOCK 

ISLAND 

COASTAL Iron ID 3b VP = 0 

6014B STOCK 

ISLAND 

COASTAL Alkalinity ND 3a VP=no 

standa

6014B STOCK 

ISLAND 

COASTAL Cadmium ID 3b VP = 0 

6014B STOCK 

ISLAND 

COASTAL Lead ID 3b VP = 0 

6014B STOCK 

ISLAND 

COASTAL Chromium3 ID 3b VP = 0 
150 Water Quality Assessment Report: Florida Keys

WBID

Waterbody 

Segment 

Waterbody 

Type1

1998 303(d) 

Parameters 

of Concern

Parameters 

Assessed 

Using the 2001 

Impaired 

Surface 

Waters Rule 

(IWR)

Assessment 

Status 

[Planning list 

(PL), Impaired 

(IM), Not 

Impaired (NI), 

No data (ND), 

Insufficient 

data (ID)]

EPA’s 

Integrated 

Report 

Category2

Priority 

for 

TMDL 

Development

Projected 

Year for 

TMDL 

Development

Comments (# 

Exceedances / # Samples) PP = 

Planning Period, VP = Verified Period

6014B STOCK 

ISLAND

COASTAL Nutrients 

(Other)

IM 4b The Florida Keys were identified as 

impaired for nutrients based on "other 

information" indicating an imbalance 

in flora or fauna, pursuant to Rule 62-

303.450(2), F.A.C. However, the 

Department is currently evaluating 

whether existing and proposed 

control measures provide reasonable 

assurance that the nutrient 

impairment will be addressed, and 

the Department may not include this 

listing on the final verified list adopted 

by Secretarial Order. The specific 

areal extent of the reasonable 

assurance demonstration is also 

pending further review, but may 

include WBIDs 6018, 6012A, 6012B, 

6012C, 6012D, 6013A, 6013B, 

6013C, 6013D, 6014A, 6014B, 

6014C, 6010, 6016, 6019, 6011A, 

6011B, 6011C, 6009, 6017, 6006A, 

6006B, 6006C, and 6006Z.

6014B STOCK 

ISLAND

COASTAL Arsenic ID 3b VP = 0 / 14

6014B STOCK 

ISLAND

COASTAL Dissolved 

Oxygen

NI 2 VP = 0 / 20

6014B STOCK 

ISLAND

COASTAL Copper IM 5 Medium 2012 PP = No Data; VP = 7 / 14

6014C US NAVAL 

AIR STATION 

KEY WEST

COASTAL Conductance ND 3a VP=no criteria in the Florida 

standards
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL pH ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Iron ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Cadmium ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Zinc ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Lead ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Copper ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 6
152 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Arsenic ID 3b VP = 0 

6014C US NAVAL 

AIR STATION KEY WEST 

COASTAL Fecal 

Coliform 

ID 3b VP = 0 

8073A N. 

ROOSEVELT/COW KEY (KW) 

BEACH Bacteria ID 3b No Bea

2002. N2004 o
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8073B KENNEDY 

DR & N. ROOSEVELT (KW) 

BEACH Bacteria ID 3b No Bea

and onNo dat2005. 

8073C SIMONTON 

STREET BEACH (KW) 

BEACH Bacteria IM 5 Low 2017 Beach 

2004, 2

8073D FT ZACHARU 

TAYLOR STATE PARK 

BEACH Bacteria NI 2 Beach 

2005. 

8073E SOUTH 

BEACH (KW) 

BEACH Bacteria IM 5 Low 2017 Beach 

2002, 2

8073F HIGGS 

BEACH 

BEACH Bacteria IM 5 Low 2017 Beach 

2001, 22006. 

8073G REST 

BEACH (KW) 

BEACH Bacteria IM 5 Low 2017 Beach 

2001. N2004, 2

8073H SMATHERS 

BEACH 

BEACH Bacteria IM 5 Low 2017 Beach 

2002, 2

8080A BAHIA 

HONDA SANDSPUR 

BEACH Bacteria IM 5 Low 2017 Beach 

2005 a

8080B BAHIA 

HONDA OCEANSIDE 

BEACH Bacteria IM 5 Low 2017 Beach 

2001, 2

MIDDLE KEYS PLANNING UNIT 6010 LONG KEY COASTAL Dissolved 

Oxygen 

IM 4c VP = 5 
154 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6010 LONG KEY COASTAL pH ID 3b VP = 0 6010 LONG KEY COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6010 LONG KEY COASTAL Fecal 

Coliform 

ID 3b VP = 0 

6010 LONG KEY COASTAL Conductance ND 3a VP=no 

standa

6010 LONG KEY COASTAL Zinc ID 3b VP = 0 6010 LONG KEY COASTAL Copper ID 3b VP = 3 6010 LONG KEY COASTAL Cadmium ID 3b VP = 0 6010 LONG KEY COASTAL Arsenic ID 3b VP = 0 6010 LONG KEY COASTAL Lead ID 3b VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6010 LONG KEY COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6010 LONG KEY COASTAL Arsenic ID 3b VP = 0 6010 LONG KEY COASTAL Iron ID 3b VP = 0 6016 DUCK KEY COASTAL Fecal 

Coliform 

ID 3b VP = 0 

6016 DUCK KEY COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6016 DUCK KEY COASTAL Iron ID 3b VP = 0 6016 DUCK KEY COASTAL Zinc ID 3b VP = 0 6016 DUCK KEY COASTAL Lead ID 3b VP = 0 
156 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6016 DUCK KEY COASTAL Copper ID 3b VP = 0 6016 DUCK KEY COASTAL Cadmium ID 3b VP = 0 6016 DUCK KEY COASTAL Conductance ND 3a VP=no 

standa

6016 DUCK KEY COASTAL pH ID 3b VP = 0 6016 DUCK KEY COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6016 DUCK KEY COASTAL Arsenic ID 3b VP = 0 6016 DUCK KEY COASTAL Dissolved 

Oxygen 

IM 4c PP = 6

8071 FLORIDA 

KEYS GULF 

COASTAL Copper NI 2 PP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8071 FLORIDA 

KEYS GULF 

COASTAL pH NI 2 PP = 2 

8071 FLORIDA 

KEYS GULF 

COASTAL Zinc NI 2 PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Unionized 

Ammonia 

ND 3a PP=no 

standa

8071 FLORIDA 

KEYS GULF 

COASTAL Turbidity NI 2 PP = 2

8071 FLORIDA 

KEYS GULF 

COASTAL Lead NI 2 PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Oil/Grease ID 3b PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 

8071 FLORIDA 

KEYS GULF 

COASTAL Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.62annual the minmore thyears. 

8071 FLORIDA 

KEYS GULF 

COASTAL Mercury ID 3b PP = 1

8071 FLORIDA 

KEYS GULF 

COASTAL Dissolved 

Solids 

ND 3a PP=no 

standaFlorida 

8071 FLORIDA 

KEYS GULF 

COASTAL Conductance ND 3a PP=no 

standaFlorida 
158 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8071 FLORIDA 

KEYS GULF 

COASTAL Chloride ID 3b PP=no 

standaFlorida 

8071 FLORIDA 

KEYS GULF 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (2.222 (2.25 u2004 (2does nmg/L. Texceed 

indicatphosph= 33.60111.45observ

8071 FLORIDA 

KEYS GULF 

COASTAL Cadmium NI 2 PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Benzene ID 3b PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Arsenic NI 2 PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Alkalinity ND 3a PP=no 

standaFlorida 

8071 FLORIDA 

KEYS GULF 

COASTAL Fluoride ID 3b PP = 0 

8071 FLORIDA 

KEYS GULF 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 2
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8076 FLORIDA 

KEYS GULF 3 

COASTAL Fecal 

Coliform 

NI 2 PP = 0 

8076 FLORIDA 

KEYS GULF 3 

COASTAL Turbidity NI 2 PP = 0 

8076 FLORIDA 

KEYS GULF 3 

COASTAL pH ID 3b PP = 0 

8076 FLORIDA 

KEYS GULF 3 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8076 FLORIDA 

KEYS GULF 3 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

8076 FLORIDA 

KEYS GULF 3 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.146 (1.196 (1.01 uTN or T

8076 FLORIDA 

KEYS GULF 3 

COASTAL Conductance ND 3a PP=no 

standaFlorida 
160 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8077 FLORIDA 

BAY GULF 1 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) a(0.39 mthreshomg/L) d0.19 mWBID median of 45.0observ

8077 FLORIDA 

BAY GULF 1 

COASTAL Turbidity NI 2 PP = 6

8077 FLORIDA 

BAY GULF 1 

COASTAL pH NI 2 PP = 1

8077 FLORIDA 

BAY GULF 1 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 

8077 FLORIDA 

BAY GULF 1 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

8077 FLORIDA 

BAY GULF 1 

COASTAL Arsenic NI 2 PP = 0 

8077 FLORIDA 

BAY GULF 1 

COASTAL Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8077 FLORIDA 

BAY GULF 1 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1

8081 BOAT KEY 

OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8081 BOAT KEY 

OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8081 BOAT KEY 

OCEAN 

COASTAL Fecal 

Coliform 

NI 2 PP = 1 

8081 BOAT KEY 

OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 0 

8081 BOAT KEY 

OCEAN 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

8081 BOAT KEY 

OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.005 (1.070 2004 (No TN analys

8082 GRASSY 

KEY OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

8082 GRASSY 

KEY OCEAN 

COASTAL Conductance ND 3a VP=no 

standa
162 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8082 GRASSY 

KEY OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 0 

8082 GRASSY 

KEY OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8082 GRASSY 

KEY OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8082 GRASSY 

KEY OCEAN 

COASTAL pH ID 3b VP = 0 

8083 LONG KEY 

OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 3 

8083 LONG KEY 

OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8083 LONG KEY 

OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

8083 LONG KEY 

OCEAN 

COASTAL Turbidity NI 2 PP = 0 

6011A VACA KEY COASTAL Iron NI 2 VP = 0 6011A VACA KEY COASTAL pH NI 2 PP = 0 6011A VACA KEY COASTAL Zinc NI 2 VP = 0 6011A VACA KEY COASTAL Alkalinity ND 3a VP=no 

standa

6011A VACA KEY COASTAL Lead NI 2 VP = 0 6011A VACA KEY COASTAL Cadmium NI 2 VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6011A VACA KEY COASTAL Turbidity ID 3b PP = 0 6011A VACA KEY COASTAL Nitrate ND 3a VP=no 

standa

6011A VACA KEY COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6011A VACA KEY COASTAL Dissolved 

Oxygen 

IM 4c PP = 5

6011A VACA KEY COASTAL Copper IM 5 Medium 2012 PP = N6011A VACA KEY COASTAL Chromium3 ID 3b VP = 0 6011A VACA KEY COASTAL Conductance ND 3a PP=no 

standaFlorida 

6011A VACA KEY COASTAL Arsenic NI 2 VP = 0 
164 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6011A VACA KEY COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6011A VACA KEY COASTAL Fecal 

Coliform 

NI 2 PP = 3 

6011B KEY 

COLONY 

BEACH Bacteria ND 3a PP = N

6011C GRASSEY 

KEY 

COASTAL Conductance ND 3a VP=no 

standa

6011C GRASSEY 

KEY 

COASTAL pH ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6011C GRASSEY 

KEY 

COASTAL Zinc ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Lead ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Copper ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Cadmium ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Iron ID 3b VP = 0 

6011C GRASSEY 

KEY 

COASTAL Fecal 

Coliform 

NI 2 PP = 0 

6011C GRASSEY 

KEY 

COASTAL Dissolved 

Oxygen 

PL 3c VP = 5 
166 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6011C GRASSEY 

KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6011C GRASSEY 

KEY 

COASTAL Arsenic ID 3b VP = 0 

8076A VETERAN'S 

BEACH 

BEACH Bacteria IM 5 Low 2017 Beach 

2004 a

8077A CURRY 

HAMMOCK STATE PARK 

BEACH Bacteria NI 2 Beach 

2005 

8081 BOAT KEY 

OCEAN 

COASTAL pH ID 3b PP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8081A COCO PLUM 

BEACH 

BEACH Bacteria IM 5 Low 2017 Beach 

2001, 2

8081B SOMBRERO 

BEACH 

BEACH Bacteria NI 2 Beach 

2005 

UPPER KEYS PLANNING UNIT 6002 MANATEE 

BAY 

ESTUARY Nitrate ND 3a PP=no 

standaFlorida 

6002 MANATEE 

BAY 

ESTUARY Unionized 

Ammonia 

ND 3a PP=no 

standa

6002 MANATEE 

BAY 

ESTUARY Turbidity NI 2 PP = 0 

6002 MANATEE 

BAY 

ESTUARY pH NI 2 PP = 4 

6002 MANATEE 

BAY 

ESTUARY Fecal 

Coliform 

NI 2 PP = 0 

6002 MANATEE 

BAY 

ESTUARY Conductance ND 3a PP=no 

standaFlorida 

6002 MANATEE 

BAY 

ESTUARY Nutrients 

(other) 

PL 3c The Flo

identifinutrientindicatipursuanFurther 

6002 MANATEE 

BAY 

ESTUARY Arsenic ID 3b PP = 0 

6002 MANATEE 

BAY 

ESTUARY Dissolved 

Oxygen 

NI 2 PP = 5
168 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6002 MANATEE 

BAY 

ESTUARY Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

6003 BARNES 

SOUND 

ESTUARY Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

6003 BARNES 

SOUND 

ESTUARY pH NI 2 PP = 2 

6003 BARNES 

SOUND 

ESTUARY Unionized 

Ammonia 

ND 3a PP=no 

standa

6003 BARNES 

SOUND 

ESTUARY Turbidity NI 2 PP = 4 

6003 BARNES 

SOUND 

ESTUARY Nitrate ND 3a PP=no 

standaFlorida 

6003 BARNES 

SOUND 

ESTUARY Nutrients 

(Other) 

PL 3c The Flo

identifinutrientindicatipursuanFurther 

6003 BARNES 

SOUND 

ESTUARY Dissolved 

Oxygen 

NI 2 PP = 3

6003 BARNES 

SOUND 

ESTUARY Conductance ND 3a PP=no 

standaFlorida 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6003 BARNES 

SOUND 

ESTUARY Arsenic NI 2 PP = 0 

6003 BARNES 

SOUND 

ESTUARY Fecal 

Coliform 

NI 2 PP = 0 

6005 LONG 

SOUND 

ESTUARY Lead ID 3b PP = 0 

6005 LONG 

SOUND 

ESTUARY pH NI 2 PP = 1

6005 LONG 

SOUND 

ESTUARY Turbidity NI 2 PP = 0 

6005 LONG 

SOUND 

ESTUARY Nitrate ND 3a PP=no 

standaFlorida 

6005 LONG 

SOUND 

ESTUARY Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

6005 LONG 

SOUND 

ESTUARY Copper ID 3b PP = 0 

6005 LONG 

SOUND 

ESTUARY Conductance ND 3a PP=no 

standaFlorida 

6005 LONG 

SOUND 

ESTUARY Arsenic ID 3b PP = 0 

6005 LONG 

SOUND 

ESTUARY Cadmium ID 3b PP = 0 
170 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6005 LONG 

SOUND 

ESTUARY Dissolved 

Oxygen 

Nutrients (Other) 

PL 3c The Flo

identifinutrientindicatipursuanFurther 

6005 LONG 

SOUND 

ESTUARY Dissolved 

Oxygen 

Dissolved Oxygen 

NI 2 Low 2011 PP = 4

6005 LONG 

SOUND 

ESTUARY Zinc ID 3b PP = 0 

6009 PLANTATION 

KEY 

COASTAL Iron NI 2 VP = 1 

6009 PLANTATION 

KEY 

COASTAL Zinc ID 3b VP = 0 

6009 PLANTATION 

KEY 

COASTAL pH NI 2 VP = 0 

6009 PLANTATION 

KEY 

COASTAL Fecal 

Coliform 

NI 2 PP = 1 

6009 PLANTATION 

KEY 

COASTAL Cadmium NI 2 VP = 0 

6009 PLANTATION 

KEY 

COASTAL Lead NI 2 VP = 0 

6009 PLANTATION 

KEY 

COASTAL Copper IM 5 Medium 2012 PP = N

6009 PLANTATION 

KEY 

COASTAL Chromium3 ID 3b VP = 0 

6009 PLANTATION 

KEY 

COASTAL Conductance ND 3a VP=no 

standa
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6009 PLANTATION 

KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6009 PLANTATION 

KEY 

COASTAL Arsenic NI 2 VP = 0 

6009 PLANTATION 

KEY 

COASTAL Alkalinity ND 3a VP=no 

standa

6009 PLANTATION 

KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6009 PLANTATION 

KEY 

COASTAL Dissolved 

Oxygen 

IM 4c VP = 1
172 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6017 UPPER 

MATECUMBE KEY 

COASTAL Iron ID 3b VP = 0 

6017 UPPER 

MATECUMBE KEY 

COASTAL pH NI 2 VP = 0 

6017 UPPER 

MATECUMBE KEY 

COASTAL Fecal 

Coliform 

NI 2 PP = 1 

6017 UPPER 

MATECUMBE KEY 

COASTAL Dissolved 

Oxygen 

IM 4c VP = 7 

6017 UPPER 

MATECUMBE KEY 

COASTAL Conductance ND 3a VP=no 

standa

6017 UPPER 

MATECUMBE KEY 

COASTAL Zinc ID 3b VP = 0 

6017 UPPER 

MATECUMBE KEY 

COASTAL Lead ID 3b VP = 0 

6017 UPPER 

MATECUMBE KEY 

COASTAL Copper ID 3b VP = 4 

6017 UPPER 

MATECUMBE KEY 

COASTAL Cadmium ID 3b VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6017 UPPER 

MATECUMBE KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6017 UPPER 

MATECUMBE KEY 

COASTAL Arsenic ID 3b VP = 0 

6017 UPPER 

MATECUMBE KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6019 LOWER 

MATECUMBE KEY 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 6 
174 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6019 LOWER 

MATECUMBE KEY 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6019 LOWER 

MATECUMBE KEY 

COASTAL pH ID 3b VP = 0 

6019 LOWER 

MATECUMBE KEY 

COASTAL Conductance ND 3a VP=no 

standa

6019 LOWER 

MATECUMBE KEY 

COASTAL Zinc ID 3b VP = 0 

6019 LOWER 

MATECUMBE KEY 

COASTAL Lead ID 3b VP = 0 

6019 LOWER 

MATECUMBE KEY 

COASTAL Copper IM 5 Medium 2012 PP = N

6019 LOWER 

MATECUMBE KEY 

COASTAL Cadmium ID 3b VP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6019 LOWER 

MATECUMBE KEY 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6019 LOWER 

MATECUMBE KEY 

COASTAL Arsenic ID 3b VP = 0 

6019 LOWER 

MATECUMBE KEY 

COASTAL Fecal 

Coliform 

ID 3b VP = 0 

6019 LOWER 

MATECUMBE KEY 

COASTAL Iron ID 3b VP = 0 
176 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8078 FLORIDA 

BAY GULF 2 

COASTAL Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

8078 FLORIDA 

BAY GULF 2 

COASTAL pH NI 2 PP = 2

8078 FLORIDA 

BAY GULF 2 

COASTAL Zinc NI 2 PP = 0 

8078 FLORIDA 

BAY GULF 2 

COASTAL Turbidity NI 2 PP = 3

8078 FLORIDA 

BAY GULF 2 

COASTAL Nitrate ND 3a PP=no 

standaFlorida 

8078 FLORIDA 

BAY GULF 2 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1

8078 FLORIDA 

BAY GULF 2 

COASTAL Arsenic NI 2 PP = 0 

8078 FLORIDA 

BAY GULF 2 

COASTAL Lead NI 2 PP = 0 

8078 FLORIDA 

BAY GULF 2 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

8078 FLORIDA 

BAY GULF 2 

COASTAL Chloride ID 3b PP=no 

standaFlorida 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8078 FLORIDA 

BAY GULF 2 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in (1.171 (1.023 2004 (does nmg/L. Texceed 

indicatphosph= 84.7070.791observ

8078 FLORIDA 

BAY GULF 2 

COASTAL Cadmium NI 2 PP = 0 

8078 FLORIDA 

BAY GULF 2 

COASTAL Copper NI 2 PP = 0 

8084 LOWER 

MATECUMBE KEY OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

8084 LOWER 

MATECUMBE KEY OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 6 
178 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8084 LOWER 

MATECUMBE KEY OCEAN 

COASTAL Fecal 

Coliform 

NI 2 PP = 1 

8084 LOWER 

MATECUMBE KEY OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8084 LOWER 

MATECUMBE KEY OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8085 PLANTATION 

KEY OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 4 

8085 PLANTATION 

KEY OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8085 PLANTATION 

KEY OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

8085 PLANTATION 

KEY OCEAN 

COASTAL Turbidity NI 2 PP = 0 
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8086 RODRIGUEZ 

KEY OCEAN 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aTP dat

8086 RODRIGUEZ 

KEY OCEAN 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

8086 RODRIGUEZ 

KEY OCEAN 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8086 RODRIGUEZ 

KEY OCEAN 

COASTAL Turbidity NI 2 PP = 0 

8087 KEY LARGO 

OCEAN 1 

COASTAL Nutrients 

(Chla) 

NI 2 The an

not excug/L in ug/L), 2ug/L), 2ug/L) aor TP d

8087 KEY LARGO 

OCEAN 1 

COASTAL Dissolved 

Oxygen 

NI 2 PP = 1 

8087 KEY LARGO 

OCEAN 1 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

8087 KEY LARGO 

OCEAN 1 

COASTAL Turbidity NI 2 PP = 0 

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Turbidity NI 2 PP = 0 
180 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Nitrate ND 3a PP=no 

standaFlorida 

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Conductance ND 3a PP=no 

standaFlorida 

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Arsenic ID 3b PP = 0 

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY pH NI 2 PP = 1

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Nutrients 

(Other) 

PL 3c The Flo

identifinutrientindicatipursuanFurther 

6005A LITTLE 

BLACKWATER SOUND 

ESTUARY Dissolved 

Oxygen 

NI 2 PP = 4
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6005B BLACKWATE

R SOUND 

ESTUARY Nutrients 

(Historic Chla) 

NI 2 Historic

of 2.0 fChl-a aminimuthan 50

6005B BLACKWATE

R SOUND 

ESTUARY pH NI 2 PP = 1

6005B BLACKWATE

R SOUND 

ESTUARY Turbidity NI 2 PP = 0 

6005B BLACKWATE

R SOUND 

ESTUARY Nitrate ND 3a PP=no 

standaFlorida 

6005B BLACKWATE

R SOUND 

ESTUARY Conductance ND 3a PP=no 

standaFlorida 

6005B BLACKWATE

R SOUND 

ESTUARY Arsenic ID 3b PP = 0 

6005B BLACKWATE

R SOUND 

ESTUARY Nutrients 

(other) 

PL 3c The Flo

identifinutrientindicatipursuanFurther 

6005B BLACKWATE

R SOUND 

ESTUARY Dissolved 

Oxygen 

NI 2 PP = 1

6005EB 

JOHN PENNEKAMP STATE PARK 

BEACH Bacteria IM 5 Low 2017 Beach 

2002, 2

6006A SOUTH KEY 

LARGO 

COASTAL Copper IM 5 Medium 2012 PP = N
182 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6006A SOUTH KEY 

LARGO 

COASTAL Cadmium NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Lead NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL pH NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Zinc NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L

6006A SOUTH KEY 

LARGO 

COASTAL Iron NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Fecal 

Coliform 

NI 2 PP = 1

6006A SOUTH KEY 

LARGO 

COASTAL Dissolved 

Oxygen 

IM 4c PP = 5

6006A SOUTH KEY 

LARGO 

COASTAL Chromium3 ID 3b VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Conductance ND 3a VP=no 

standa
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6006A SOUTH KEY 

LARGO 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6006A SOUTH KEY 

LARGO 

COASTAL Arsenic NI 2 VP = 0 

6006A SOUTH KEY 

LARGO 

COASTAL Alkalinity ND 3a VP=no 

standa

6006B MIDDLE KEY 

LARGO 

COASTAL pH ID 3b PP = 0 

6006B MIDDLE KEY 

LARGO 

COASTAL Nutrients 

(Historic Chla) 

ND 3a PP = N
184 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6006B MIDDLE KEY 

LARGO 

COASTAL Dissolved 

Oxygen 

ID 3b PP = 0 

6006B MIDDLE KEY 

LARGO 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6006B MIDDLE KEY 

LARGO 

COASTAL Conductance ND 3a PP=no 

standaFlorida 

6006C NORTH KEY 

LARGO 

COASTAL pH ID 3b PP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Nutrients 

(Historic Chla) 

ID 3b VP = L
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6006C NORTH KEY 

LARGO 

COASTAL Iron ID 3b VP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Fecal 

Coliform 

ID 3b PP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Zinc ID 3b VP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Copper IM 5 VP = 5 

6006C NORTH KEY 

LARGO 

COASTAL Cadmium ID 3b VP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Lead ID 3b VP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Dissolved 

Oxygen 

ID 3b PP = 3 

6006C NORTH KEY 

LARGO 

COASTAL Conductance ND 3a PP=no 

standaFlorida 
186 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

6006C NORTH KEY 

LARGO 

COASTAL Nutrients 

(Other) 

IM 4b The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6012C6013C6014C6011B6006B

6006C NORTH KEY 

LARGO 

COASTAL Arsenic ID 3b VP = 0 

6006C NORTH KEY 

LARGO 

COASTAL Turbidity NI 2 PP = 0 

6006Z PUMPKIN 

KEY 

BEACH Bacteria ND 3a PP = N

8078A HARRY 

HARRIS COUNTY PARK 

BEACH Bacteria IM 5 Low 2017 Beach 

2002, 2
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8078B ISLAMORAD

A LIBRARY BEACH 

BEACH Bacteria IM 5 Low 2017 Beach 

2004, 2

8078C FOUNDER BEACH Bacteria IM 5 Low 2017 Beach 

2002, 2

8084A SEA OATS 

BEACH 

BEACH Bacteria ID 3b In 2000 

adviso2001 o2003, 2

8084B ANNE'S 

BEACH 

BEACH Bacteria NI 2 Beach 

2005 
188 Water Quality Assessment Report: Florida Keys 

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8998 FLORIDA 

COAST 

COASTAL Nutrients 

(Other) 

Nutrients (Other) 

IM 4b Medium 2012 The Flo

impaireinformain flora 303.45Departwhethecontrol assuraimpairmthe Delisting oby Secareal eassurapendininclude 6018, 66013A6014A6019, 66017, 66006Z
Water Quality Assessment Report: Flo

WBID 

Waterbody Segment 

Waterbody Type1

1998 303(d) Parameters of Concern 

Parameters Assessed Using the 2001 Impaired Surface Waters Rule (IWR) 

Assessment Status [Planning list (PL), Impaired (IM), Not Impaired (NI), No data (ND), Insufficient data (ID)] 

EPA’s Integrated Report Category2

Priority for TMDL Development 

Projected Year for TMDL Development 

CommeExceedPlannin

8998 FLORIDA 

COAST 

COASTAL Mercury 

(based on fish consumption) 

IM 5 Low 2011 Data v

years fSnookKing MSeatroTunny, Bluefisthen 43 NO conMackeShark include6011A6014A8071, 88077, 88083, 8

1The designation "stream" includes canals, rivers, and sloughs. The designation “lake” includes some marshes. 2The EPA’s 305(b)/303(d) Integrated Report categories are as follows:

1–Attains all designated uses; 2–Attains some designated uses; 3a–No data and information are available to determine if any designated use is attained; 3b–Some data and information are available, but they are insufficient for determining if any designated use is attained; 

3c–Meets Planning List criteria and is potentially impaired for one or more designated uses; 

3d—Meets Verified List criteria and is potentially impaired for one or more designated uses; 

4a–Impaired for one or more designated uses and the TMDL is complete; 4b–Impaired for one or more designated uses, but no TMDL is required because an existing or proposed pollutant control mechan

assurance that the water will attain standards in the future; 

4c–Impaired for one or more designated uses but no TMDL is required because the impairment is not caused by a pollutant; and 5–Water quality standards are not attained and a TMDL is required.
190 Water Quality Assessment Report: Florida Keys 

Table D.2: Water Quality Monitoring Stations Used in the Assessment for the Florida Keys Basin, by Planning Unit 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

Lower Keys Planning Unit 6018 BAHIA HONDA STATE PARK COASTAL 3M 21FLDOH MONROE173 FL779433 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP338 Garden Key 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP341 Northwest Channel 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP321 Loggerhead Channel 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP349 Logerhead Inshore 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP348 Hospital Key 8072 DRY TORTUGA GULF COASTAL 3m FWC-WQMP320 Loggerhead Marker 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE170 FL092123 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE305 FL963834 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE306 FL817993 8073 KEY WEST GULF COASTAL 3M 21FLKEYW23 

Key West - Holiday Inn Beach Side #10 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW29 Key West - Rest Beach #2 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE307 FL853528 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE309 FL357964 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE308 FL220059 8073 KEY WEST GULF COASTAL 3M 21FLKEYW28 Key West - Rest Beach #1 8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE184 FL138730 8073 KEY WEST GULF COASTAL 3M 21FLKEYW27 

Key West - Smathers #3 Monitoring Well 

8073 KEY WEST GULF COASTAL 3M 21FLDOH MONROE373 FL824578 8073 KEY WEST GULF COASTAL 3M 21FLKEYW25 

Key West - Smathers #1 Monitoring Well 

8073 KEY WEST GULF COASTAL 3M FWC-WQMP325 SE Marquesas 8073 KEY WEST GULF COASTAL 3M 21FLKEYW20 

Key West - Holiday Inn Beach Side #7 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW19 

Key West - Holiday Inn Beach Side #6 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW18 

Key West - Holiday Inn Beach Side #5 SWO 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW101 Key West - White Street Pier 8073 KEY WEST GULF COASTAL 3M 21FLSFWMSWS351 

SOUTHWEST FLORIDA SHELF WATER QUALITY MONITORING 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW100 

Key West - Smathers #4 Monitoring Well 

8073 KEY WEST GULF COASTAL 3M 21FLFTM 28040880FTM BLUE LAGOON 8073 KEY WEST GULF COASTAL 3M FWC-WQMP319 N Boca Grande Channel 8073 KEY WEST GULF COASTAL 3M FWC-WQMP318 KW Northwest Channel 8073 KEY WEST GULF COASTAL 3M FWC-WQMP317 Garrison Bight 8073 KEY WEST GULF COASTAL 3M FWC-WQMP315 Calda Channel 8073 KEY WEST GULF COASTAL 3M 21FLKEYW21 

Key West - Holiday Inn Beach Side #8 

8073 KEY WEST GULF COASTAL 3M FWC-WQMP312 E. Harbor Key Channel 8073 KEY WEST GULF COASTAL 3M 21FLKEYW13 Key West - Blue Lagoon 8073 KEY WEST GULF COASTAL 3M 21FLKEYW36 Key West - Southern-most Pt. 8073 KEY WEST GULF COASTAL 3M 21FLKEYW61 

Key West - Grinnell Street Storm Water Outfall #2 

8073 KEY WEST GULF COASTAL 3M FWC-WQMP277 Key West Cut A 8073 KEY WEST GULF COASTAL 3M FWC-WQMP278 Western Head 8073 KEY WEST GULF COASTAL 3M FWC-WQMP279 Main Ship Channel 8073 KEY WEST GULF COASTAL 3M FWC-WQMP280 Eastern Dry Rocks 8073 KEY WEST GULF COASTAL 3M FWC-WQMP281 Middle Ground 8073 KEY WEST GULF COASTAL 3M 21FLKEYW30 Key West - Rest Beach #3 8073 KEY WEST GULF COASTAL 3M 21FLKEYW35 Key West - South Beach 8073 KEY WEST GULF COASTAL 3M 21FLKEYW26 

Key West - Smathers #2 Monitoring Well 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW34 Key West - Higgs Beach 
192 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW31 Key West - Rest Beach #4 8073 KEY WEST GULF COASTAL 3M 21FLKEYW32 Key West - Rest Beach #5 8073 KEY WEST GULF COASTAL 3M FWC-WQMP274 Boca Chica Channel 8073 KEY WEST GULF COASTAL 3M 21FLKEYW33 Key West - Dog Beach 8073 KEY WEST GULF COASTAL 3M 11FLKNMSFKNMS_KW_CHANL Key West Channel 8073 KEY WEST GULF COASTAL 3M 21FLKEYW60 

Key West - Grinnell Street Storm Water Outfall #2 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW63 

Key West - Storm Water Outfall off of White St. Rest Beach 

8073 KEY WEST GULF COASTAL 3M 21FLKEYW64 

Key West - Storm Water Outfall off of White St. Rest Beach 

8073 KEY WEST GULF COASTAL 3M 21FLFTM 28040872FTM WHITE STREET PIER 8074 FLORIDA KEYS GULF 1 COASTAL 3M 21FLSFWMSWS375 

SOUTHWEST FLORIDA SHELF WATER QUALITY MONITORING 

8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP305 Cudjoe Key 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP309 Marvin Key Channel 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP209 Channel Key 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP313 Lower Harbor Keys 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP306 Johnson Key Channel 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP307 Tarpon Belly Keys 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP311 Shark Key 8074 FLORIDA KEYS GULF 1 COASTAL 3M FWC-WQMP310 Snipe Keys 8074 FLORIDA KEYS GULF 1 COASTAL 3M 21FLFMRIFLO200326 Florida Bay - Cudjoe Basin 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200227 StateNonTrend - Florida Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP302 Content Passage 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP301 Cutoe Key 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP303 Pine Channel 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200323 StateNonTrend - Florida Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200229 StateNonTrend - Florida Bay 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLW200502 Florida/Biscayne Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLW200522 Florida West 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200325 StateNonTrend - Florida Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP296 W. Bahia Honda Key 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP314 Bluefish Channel 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP308 Kemp Channel 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP300 Little Pine Key 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP295 Bullfrog Banks 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLO200327 

Florida Bay - Bahia Honda Channel 

8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLO200323 

Florida Bay - 8 Miles NW Great White Heron Park 

8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLO200321 

Florida Bay - 15 Miles SW Flamingo 

8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200029 StateNonTrend - Florida Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200030 StateNonTrend - Kemp Channel 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLSFWMSWS376 

SOUTHWEST FLORIDA SHELF WATER QUALITY MONITORING 

8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP304 Toptree Hammock Chan. 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLO200320 

Florida Bay - 10 Miles N of Lignumvitae Key 

8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRIFLWALT053 Florida/Biscayne Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200328 StateNonTrend - Florida Bay 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP298 Harbor Key Bank 8075 FLORIDA KEYS GULF 2 COASTAL 3M FWC-WQMP299 Bogie Channel 8075 FLORIDA KEYS GULF 2 COASTAL 3M 21FLFMRISTR200129 

StateNonTrend - Torch Key Mangroves 

8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP276 Western Sambo 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP403 Western Sambo 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP266 Tarpon Creek 
194 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP268 Saddlebunch Keys 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP269 West Washerwoman 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP270 Maryland Shoal 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP271 Boca Chica Key 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP275 Boca Chica Mid 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP273 Eastern Sambo Offshore 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP272 Eastern Sambo 8079 NAS KEY WEST OCEAN COASTAL 3M FWC-WQMP261 American Shoal Channel 8079 NAS KEY WEST OCEAN COASTAL 3M 21FLFTM 28040881FTM BOCA CHICA BAY 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M 21FLFMRISTR200327 StateNonTrend - Cudjoe Bay 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP253 Spanish Harbor Keys 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP254 Bahia Honda Key 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP257 Long Beach 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP258 Big Pine Channel 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP260 Newfound Harbor Keys 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M FWC-WQMP262 Looe Key Channel 8080 NEWFOUND HARBOR KEYS OCEAN COASTAL 3M 21FLDOH MONROE171 FL187399 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040902FTM CAHILL PINES & PALMS 6012A BIG PINE KEY COASTAL 3M 21FLKTNCTNCFL11 Duck Key 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040909FTM DOCTOR'S ARM 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040906FTM EDEN PINES COLONY 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040905FTM MATES BEACH 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040904FTM SANDS SUBD. AREA 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040898FTM JOLLY ROGER ESTATES 6012A BIG PINE KEY COASTAL 3M 21FLFTM 28040895FTM 

BREEZESWEPT BEACH ESTATES 

6012A BIG PINE KEY COASTAL 3M 21FLKTNCTNCFL10 Marathon, Dolphin Dr. 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6012B BAHIA HONDA BAYSIDE BEACH 3M 21FLDOH MONROE172 FL030849 6012C NO NAME KEY COASTAL 3M 21FLFTM 28040907FTM DOLPHIN HARBOR 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLKTNCTNCFL15 Key Largo, Rock Harbour 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLFMRISTR200130 StateNonTrend - Waltz Key Basin 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLKTNCTNCFL14 Tavernier, Banyan Lane 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLFTM 28040892FTM SUGARLOAF SHORES EAST 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLFTM 28040893FTM SUGARLOAF SHORES WEST 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLFTM 28040891FTM BAYPOINT 6013A SADDLEBUNCH KEYS COASTAL 3M 21FLFTM 28040894FTM SUGAR SHACK MARINA 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040903FTM VACATION HARBOR 6013C CUDJOE KEY COASTAL 3M 21FLKTNCTNCFL12 Conch Key 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040901FTM CUDJOE GARDENS 6013C CUDJOE KEY COASTAL 3M 21FLKTNCTNCFL13 Islamorada, Port Antigua 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040900FTM SUMMERLAND KEY FISHERIES 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040899FTM CUTTHROAT HARBOR ESTATES 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040897FTM VENTURE OUT 6013C CUDJOE KEY COASTAL 3M 21FLFTM 28040896FTM SUMMERLAND COVE ISLES 6014A KEY WEST COASTAL 3M 21FLKEYW51 Key West - Bight#2 6014A KEY WEST COASTAL 3M 21FLKEYW53 Key West - Bight #4 6014A KEY WEST COASTAL 3M 21FLKEYW5 Key West - Garrison Bight #5 6014A KEY WEST COASTAL 3M 21FLKEYW52 Key West - Bight#3 6014A KEY WEST COASTAL 3M 21FLKEYW65 

Key West - Storm Water Outfall off of White St. Rest Beach 

6014A KEY WEST COASTAL 3M 21FLKEYW41 Key West - Hilton Docks #5 6014A KEY WEST COASTAL 3M 21FLKEYW62 

Key West - Grinnell Street Storm Water Outfall #2 

6014A KEY WEST COASTAL 3M 21FLKEYW66 Key West - Fort St. SWO 
196 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6014A KEY WEST COASTAL 3M 21FLKEYW40 Key West - Hilton Docks #4 6014A KEY WEST COASTAL 3M 21FLKEYW43 Key West - Zero Duval#1 6014A KEY WEST COASTAL 3M 21FLKEYW54 

Key West - Elizabeth Street 12" Storm Water Outfall 

6014A KEY WEST COASTAL 3M 21FLKEYW55 

Key West - Greene Street Storm Water Outfall 

6014A KEY WEST COASTAL 3M 21FLKEYW56 

Key West - William Street Storm Water Outfall 

6014A KEY WEST COASTAL 3M 21FLKEYW57 

Key West - Margaret Street Storm Water Outfall 

6014A KEY WEST COASTAL 3M 21FLKEYW59 

Key West - Grinnell Street Storm Water Outfall #2 

6014A KEY WEST COASTAL 3M 21FLKEYW8 Key West - Garrison Bight #8 6014A KEY WEST COASTAL 3M 21FLKEYW4 Key West - Garrison Bight #4 6014A KEY WEST COASTAL 3M 21FLKEYW15 

Key West - Holiday Inn Beach Side #2 

6014A KEY WEST COASTAL 3M 21FLKEYW9 Key West - Garrison Bight #9 6014A KEY WEST COASTAL 3M 21FLKEYW58 

Key West - Grinnell Street Storm Water Outfall #1 

6014A KEY WEST COASTAL 3M 21FLKEYW12 

Key West - Fourth Street Storm Water Outfall 

6014A KEY WEST COASTAL 3M 21FLFMRISTR200230 

StateNonTrend - Man of War Harbor 

6014A KEY WEST COASTAL 3M 21FLFTM 28040873FTM KEY WEST BIGHT 6014A KEY WEST COASTAL 3M 21FLFTM 28040874FTM TRUMAN HARBOR 6014A KEY WEST COASTAL 3M 21FLFTM 28040876FTM ZERO DUVAL 6014A KEY WEST COASTAL 3M 21FLFTM 28040877FTM RIVIERA CANAL 6014A KEY WEST COASTAL 3M 21FLFTM 28040878FTM GARRISON BIGHT 6014A KEY WEST COASTAL 3M 21FLFTM 28040883FTM 

COW KEY CHANNEL - VA HOSPITAL 

6014A KEY WEST COASTAL 3M 21FLFTM 28040884FTM SIGSBY 6014A KEY WEST COASTAL 3M 21FLKEYW1 Key West - Garrison Bight #1 6014A KEY WEST COASTAL 3M 21FLKEYW17 

Key West - Holiday Inn Beach Side #4 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6014A KEY WEST COASTAL 3M 21FLKEYW11 Key West - Truman Ave. #2 6014A KEY WEST COASTAL 3M 21FLKEYW39 Key West - Hilton Docks #3 6014A KEY WEST COASTAL 3M 21FLKEYW14 

Key West - Holiday Inn Beach Side #1 

6014A KEY WEST COASTAL 3M 21FLSFWMKW-MZL 

KEY WEST WWTP MONITORING WELL INTERVAL=1280-1320'; 

6014A KEY WEST COASTAL 3M 21FLKEYW16 

Key West - Holiday Inn Beach Side #3 

6014A KEY WEST COASTAL 3M 21FLKEYW2 Key West - Garrison Bight #2 6014A KEY WEST COASTAL 3M 21FLSFWMKW-MZU 

KEY WEST WWTP MONITORING WELL INTERVAL=675-725'; 1 

6014A KEY WEST COASTAL 3M 21FLKEYW22 

Key West - Holiday Inn Beach Side #9 

6014A KEY WEST COASTAL 3M 21FLKEYW24 Key West - Cow Key Channel 6014A KEY WEST COASTAL 3M 21FLKEYW3 Key West - Garrison Bight #3 6014A KEY WEST COASTAL 3M 21FLKEYW37 Key West - Hilton Docks #1 6014A KEY WEST COASTAL 3M 21FLKEYW38 Key West - Hilton Docks #2 6014A KEY WEST COASTAL 3M 21FLKEYW10 

Key West - Truman Avenue Storm Water Outfall 

6014A KEY WEST COASTAL 3M FWC-WQMP316 Man of War Harbor 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040875FTM 

OCEANSIDE MARINA - SAFETY HARBOR II 

6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040882FTM BOYD'S CAMPGROUND 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040879FTM SAFETY HARBOR 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040886FTM KEY HAVEN 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLKTNCTNCFL17 Key Largo, Sexton Cove Estates 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLKTNCTNCFL16 Key Largo, Pimlico Lane 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040885FTM TAMARAC PARK 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040887FTM BOCA CHICA OCEAN SHORES 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040888FTM ROCKLAND VILLAGE 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040889FTM GULFREST PARK 
198 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040890FTM SIMILAR SOUND 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW46 Key West - Mallory Docks#2 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW45 Key West - Mallory Docks#1 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW49 Key West - Simonton Pier 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW48 Key West - Mallory Docks#4 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW47 Key West - Mallory Docks#3 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW50 Key West - Bight#1 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLDOH MONROE183 FL145983 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW44 Key West - Zero Duval#2 8073C 6014A KEY WEST COASTAL 3M 21FLKEYW17 

Key West - Holiday Inn Beach Side #4 

6014A KEY WEST COASTAL 3M 21FLKEYW11 Key West - Truman Ave. #2 6014A KEY WEST COASTAL 3M 21FLKEYW39 Key West - Hilton Docks #3 6014A KEY WEST COASTAL 3M 21FLKEYW14 

Key West - Holiday Inn Beach Side #1 

6014A KEY WEST COASTAL 3M 21FLSFWMKW-MZL 

KEY WEST WWTP MONITORING WELL INTERVAL=1280-1320'; 

6014A KEY WEST COASTAL 3M 21FLKEYW16 

Key West - Holiday Inn Beach Side #3 

6014A KEY WEST COASTAL 3M 21FLKEYW2 Key West - Garrison Bight #2 6014A KEY WEST COASTAL 3M 21FLSFWMKW-MZU 

KEY WEST WWTP MONITORING WELL INTERVAL=675-725'; 1 

6014A KEY WEST COASTAL 3M 21FLKEYW22 

Key West - Holiday Inn Beach Side #9 

6014A KEY WEST COASTAL 3M 21FLKEYW24 Key West - Cow Key Channel 6014A KEY WEST COASTAL 3M 21FLKEYW3 Key West - Garrison Bight #3 6014A KEY WEST COASTAL 3M 21FLKEYW37 Key West - Hilton Docks #1 6014A KEY WEST COASTAL 3M 21FLKEYW38 Key West - Hilton Docks #2 6014A KEY WEST COASTAL 3M 21FLKEYW10 

Key West - Truman Avenue Storm Water Outfall 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6014A KEY WEST COASTAL 3M FWC-WQMP316 Man of War Harbor 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040875FTM 

OCEANSIDE MARINA - SAFETY HARBOR II 

6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040882FTM BOYD'S CAMPGROUND 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040879FTM SAFETY HARBOR 6014B STOCK ISLAND COASTAL 3M 21FLFTM 28040886FTM KEY HAVEN 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLKTNCTNCFL17 Key Largo, Sexton Cove Estates 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLKTNCTNCFL16 Key Largo, Pimlico Lane 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040885FTM TAMARAC PARK 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040887FTM BOCA CHICA OCEAN SHORES 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040888FTM ROCKLAND VILLAGE 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040889FTM GULFREST PARK 6014C US NAVAL AIR STATION KEY WEST COASTAL 3M 21FLFTM 28040890FTM SIMILAR SOUND 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW46 Key West - Mallory Docks#2 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW45 Key West - Mallory Docks#1 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW49 Key West - Simonton Pier 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW48 Key West - Mallory Docks#4 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW47 Key West - Mallory Docks#3 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW50 Key West - Bight#1 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLDOH MONROE183 FL145983 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW44 Key West - Zero Duval#2 8073C SIMONTON STREET BEACH (KW) BEACH 3M 21FLKEYW42 Key West - Hilton Docks #6 Middle Keys Planning Unit 6010 LONG KEY COASTAL 3M 21FLFTM 28040927FTM FIESTA KEY KOA 6010 LONG KEY COASTAL 3M 21FLFTM 28040925FTM OUTDOOR RESORTS 2 6010 LONG KEY COASTAL 3M 21FLFTM 28040926FTM LONG KEY ESTATES - LAYTON 
200 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6016 DUCK KEY COASTAL 3M 21FLKTNCTNCFL06 Cudjoe Key, Cutthroat Estates 6016 DUCK KEY COASTAL 3M 21FLFTM 28040921FTM DUCK KEY 6016 DUCK KEY COASTAL 3M 21FLFTM 28040924FTM CONCH KEY BAYSIDE 6016 DUCK KEY COASTAL 3M 21FLFTM 28040923FTM CONCH KEY OCEANSIDE 6016 DUCK KEY COASTAL 3M 21FLKTNCTNCFL07 Big Pine Key, Eden Pines 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRIFLWALT223 Florida/Biscayne Bay 8071 FLORIDA KEYS GULF COASTAL 3M 21FLSFWMBCWQA3 EAST CROSSING STRAND 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRISTR200123 StateNonTrend - Florida Bay 8071 FLORIDA KEYS GULF COASTAL 3M 21FLSFWMFLAB26 Oxfoot Bank 8071 FLORIDA KEYS GULF COASTAL 3M 21FLSFWMFLAB25 East Cape 8071 FLORIDA KEYS GULF COASTAL 3M 21FLSFWMBCWQA15 QUAKENHASSEE 8071 FLORIDA KEYS GULF COASTAL 3M 21FLSFWMSWS399 

SOUTHWEST FLORIDA SHELF WATER QUALITY MONITORING 

8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRIFLO200306 Florida Bay - East Cape 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRISTR200321 StateNonTrend - Florida Bay 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRISTR200433 Florida Bay 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRIFLO200307 Florida Bay - Sand Key 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRIFLO200310 Florida Bay - Lake Key 8071 FLORIDA KEYS GULF COASTAL 3M 21FLFMRISTR200025 StateNonTrend - Florida Bay 8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP290 Bluefish Bank 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLFMRIFLO200324 

Florida Bay - Just W & Middle of Islamorada 

8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP289 Bamboo Key 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLFMRISTR200412 Florida Bay 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLFMRIFLW200511 Florida/Biscayne Bay 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLDOH MONROE174 FL067541 8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP292 John Sawyer Bank 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP293 Bethel Bank 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLFMRISTR200326 StateNonTrend - Florida Bay 8076 FLORIDA KEYS GULF 3 COASTAL 3M 21FLFMRISTR200407 Florida Bay 8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP294 Red Bay Bank 8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP297 Cocoanut Key 8076 FLORIDA KEYS GULF 3 COASTAL 3M FWC-WQMP291 Bullard Bank 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200417 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB16 Murray Key 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB15 Rankin Lake 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200418 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200023 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200028 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB13 Whipray Basin 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200119 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200405 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200408 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB14 Garfield Bight 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB17 Johnson Key Basin 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200121 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200431 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200324 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200320 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB19 Twin Key Basin 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200226 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB20 Peterson Key 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200221 StateNonTrend - Florida Bay 
202 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB27 Sprigger Bank 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB28 Old Dan Bank 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRISTR200126 StateNonTrend - Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLSFWMFLAB18 Rabbit Key Basin 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLWALT131 Florida/Biscayne Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLO200318 Florida Bay - 5 Miles N Conch Key 8077 FLORIDA BAY GULF 1 COASTAL 3M FWC-WQMP282 Arsenic Bank 8077 FLORIDA BAY GULF 1 COASTAL 3M FWC-WQMP285 Channel Key Pass 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLO200308 Florida Bay - Camp Key 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLO200311 Florida Bay - Catfish Key 8077 FLORIDA BAY GULF 1 COASTAL 3M FWC-WQMP286 Toms Harbor Cut 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLO200314 Florida Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M 21FLFMRIFLW200525 Florida/Biscayne Bay 8077 FLORIDA BAY GULF 1 COASTAL 3M FWC-WQMP284 Tripod Bank 8081 BOAT KEY OCEAN COASTAL 3M 21FLDOH MONROE175 FL726184 8081 BOAT KEY OCEAN COASTAL 3M 21FLFMRIFLO200325 

Florida Bay - South Shore Johnson Keys 

8081 BOAT KEY OCEAN COASTAL 3M FWC-WQMP255 Bahia Honda Channel 8081 BOAT KEY OCEAN COASTAL 3M FWC-WQMP251 Seven Mile Br. Channel 8081 BOAT KEY OCEAN COASTAL 3M FWC-WQMP250 Seven Mile Bridge 8081 BOAT KEY OCEAN COASTAL 3M FWC-WQMP247 Key Colony Beach 8082 GRASSY KEY OCEAN COASTAL 3M 21FLFMRISTR200438 Florida Bay 8082 GRASSY KEY OCEAN COASTAL 3M FWC-WQMP248 Coffins Patch Channel 8083 LONG KEY OCEAN COASTAL 3M FWC-WQMP244 Long Key Pass Inshore 8083 LONG KEY OCEAN COASTAL 3M FWC-WQMP242 Long Key Channel 8083 LONG KEY OCEAN COASTAL 3M FWC-WQMP245 Long Key Pass Channel 8083 LONG KEY OCEAN COASTAL 3M FWC-WQMP241 Long Key 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6011A VACA KEY COASTAL 3M 21FLFTM LV-7 

Vaca Key - Little Venice - 97 St Canal head 

6011A VACA KEY COASTAL 3M 21FLFTM LV-8 

Vaca Key - Little Venice - 91 St Canal mouth 

6011A VACA KEY COASTAL 3M 21FLFTM LV-9 

Vaca Key - Little Venice - 91 St Canal head 

6011A VACA KEY COASTAL 3M 21FLFTM LV-6 

Vaca Key - Little Venice - 97 St Canal mouth 

6011A VACA KEY COASTAL 3M 21FLDOH MONROE176 FL658167 6011A VACA KEY COASTAL 3M 21FLFTM LV-3 

Vaca Key - Little Venice - 112 St Canal head 

6011A VACA KEY COASTAL 3M 21FLKTNCTNCFL08 Big Pine Key, Whispering Pines 6011A VACA KEY COASTAL 3M 21FLKTNCTNCFL09 Marathon, 27th Ave. 6011A VACA KEY COASTAL 3M 21FLFTM 28040919FTM COCO PLUM - WEST 6011A VACA KEY COASTAL 3M 21FLFTM 28040917FTM BONEFISH BAY 6011A VACA KEY COASTAL 3M 21FLFTM 28040910FTM CASTAWAYS - 15TH ST CANAL 6011A VACA KEY COASTAL 3M 21FLFTM 28040911FTM BOOT KEY HARBOR 6011A VACA KEY COASTAL 3M 21FLFTM 28040912FTM 

FARO BLANCO BAYSIDE - BASIN 

6011A VACA KEY COASTAL 3M 21FLFTM 28040913FTM WINNER DOCKS 6011A VACA KEY COASTAL 3M 21FLFTM 28040915FTM YELLOWTAIL DRIVE 6011A VACA KEY COASTAL 3M 21FLFTM LV-5 

Vaca Key - Little Venice - 100 St Canal head 

6011A VACA KEY COASTAL 3M 21FLFTM 28040916FTM 113TH STREET CANAL 6011A VACA KEY COASTAL 3M 21FLFMRISTR200128 StateNonTrend - Florida Bay 6011A VACA KEY COASTAL 3M 21FLFTM 28040918FTM COCO PLUM - EAST 6011A VACA KEY COASTAL 3M 21FLFTM LV-1 

Vaca Key - Little Venice - 112 St Canal mouth 

6011A VACA KEY COASTAL 3M 21FLFTM LV-2 

Vaca Key - Little Venice - 100 St Canal offshore 

6011A VACA KEY COASTAL 3M 21FLFTM 28040908FTM SOMBRERO ISLE 6011A VACA KEY COASTAL 3M 21FLFTM LV-4 

Vaca Key - Little Venice - 100 St Canal mouth 
204 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6011B KEY COLONY BEACH 3M 21FLFTM 28040930FTM KEY COLONY BEACH 2 6011B KEY COLONY BEACH 3M 21FLFTM 28040914FTM KEY COLONY BEACH 1 6011C GRASSEY KEY COASTAL 3M 21FLDOH MONROE177 FL078289 6011C GRASSEY KEY COASTAL 3M 21FLFTM 28040920FTM JOLLY ROGER RV PARK 6011C GRASSEY KEY COASTAL 3M 21FLFTM 28040922FTM JG ESTATES Upper Keys Planning Unit 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS14 

NORTHERN MANATEE BAY IN SMALL BAY JUST N. OF MB 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS16 

NW MANATEE BAY AT END OF C111 CANAL AT MARKER #6 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS19 

SW MANATEE BAY 2 PLATFORMS AT SITE ON IS STAGE 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS13 

NORTHERN MANATEE BAY SW OF MBLS12 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF7 Manatee Bay 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBK9 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBL5 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBL7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS12 

NE MANATEE BAY IN SMALL BAY NW OF MBLS10 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS05 

100 YDS OFF EAST ISLAND AT MARKER #2 250 YDS OF 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS07 NW OF MBLS06 AT MARKER # 2 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS08 SW MANATEE BAY 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS09 

SO. MANATEE BAY N SIDE OF EAST ISL. 200 YDS NE. 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBLS10 

NE OF MBLS09 IN MANATEE BAY 1/4 MI. W. OF CUT I 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBG7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB6 Manatee Bay 
206 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEBB51 Biscayne Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEM2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMBB51 

BISCAYNE WATER QUALITY STATIONS 

6002 MANATEE BAY ESTUARY 3M 21FLDADEM1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBA7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMFLAB03 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD5 Manatee Bay 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBB7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBD2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBE2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBC1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBK7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB8 

FLORIDA BAY MONITORING SITE 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBA2 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBA5 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBA6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBA9 

FLORIDA BAY MONITORING SITE 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB3 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB4 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB5 

FLORIDA BAY MONITORING STATION FROM DERM 
208 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBC4 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBC5 

FLORIDA BAY MONITORING STATION FROM DERM 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBC6 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBC7 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBC8 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD1 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD2 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD3 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD4 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBB6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBL1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI9 Manatee Bay 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBF6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBJ8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBK5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBI7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH2 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH3 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH6 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH8 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI3 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI2 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI1 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBI3 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBH1 

FLORIDA BAY MONITORING STATION 
210 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBI5 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBJ2 

FLORIDA BAY MONITORING STATION FROM DERM 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBI9 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBJ1 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBJ5 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH9 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH8 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH7 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBK2 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBH5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD8 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBI4 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE8 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBD9 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBJ6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG9 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE1 

FLORIDA BAY MONITORING STATION FROM DERM 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE2 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE4 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE9 

FLORIDA BAY MONITORING STATION 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBF3 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBF5 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBF6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG4 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBE5 

FLORIDA BAY MONITORING STATION FROM DERM 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI4 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBF7 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI5 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG5 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG6 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG3 

FLORIDA BAY MONITORING STATION 

6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBG2 FLORIDA BAY STATION 6002 MANATEE BAY ESTUARY 3M 21FLDADEMBI6 Manatee Bay 6002 MANATEE BAY ESTUARY 3M 21FLSFWMMBF8 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG4 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF7 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF6 

FLORIDA BAY MONITORING STATION 
212 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSE6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF3 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF2 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG7 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI7 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSE8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSF5 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI2 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ4 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA7 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSE3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ2 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI3 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSG9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI1 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSH8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSH7 

FLORIDA BAY MONITORING STATION FROM DERM 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSH5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSH4 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSH1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSI6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA4 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB4 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLDADEM3 Manatee Bay 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB9 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC1 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA1 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ5 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBB50 

BISCAYNE WATER QUALITY STATIONS 

6003 BARNES SOUND ESTUARY 3M 21FLFMRISTR200448 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSA6 

FLORIDA BAY MONITORING STATION 
214 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSE1 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD7 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD4 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB7 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD1 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSE2 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC8 

FLORID BAY MONITORING STAITON 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC7 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC4 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSC2 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSD2 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBL8 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG9 Barnes Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBL1 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMFLAB01 Card Sound Bridge 6003 BARNES SOUND ESTUARY 3M 21FLSFWMFLAB02 Middle Bay 6003 BARNES SOUND ESTUARY 3M 21FLSFWMFLAB04 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBLS11 

WESTERN BARNES SOUND E. OF MBLS10 THRU CUT IN K 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBL6 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSG1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBL9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBLS04 

WEST CENTRAL BARNES SOUND 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBL4 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK1 Barnes Sound 
216 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBK8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSI1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSH8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBLS20 NE BARNES SOUND 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSJ1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB6 Barnes Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBLS06 

WEST BARNES SOUND SE OF LITTLE #6 ISLAND 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSD9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSC6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 11FLKNMSFKNMS_CARD_SND Card Sound Bridge 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBLS21 

NE MANATEE BAY ALSO NE OF MBLS20 
218 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBB50 Biscayne Bay 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSA9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSB1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSE4 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK7 

FLORIDA BAY MONITORING STATION 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBG7 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBF9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ7 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ9 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK1 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK2 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK3 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK5 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBG8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSK4 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSL3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSL5 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSL6 

FLORIDA BAY MONITORING STATION FROM DERM 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSL7 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSJ6 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSL9 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMBSB6 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSF6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK7 Barnes Sound 
220 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBK5 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBK4 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBK3 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBK1 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBH9 

BISCAYNE BAY MONITORING STAITON 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSK9 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL1 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL2 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL3 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL7 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBI2 

FLORIDA BAY MONITORING SITE 

6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBJ9 FLORIDA BAY STATION 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBJ8 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL8 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL6 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL5 Barnes Sound 6003 BARNES SOUND ESTUARY 3M 21FLSFWMMBI1 

FLORIDA BAY MONITORING STATION 

6003 BARNES SOUND ESTUARY 3M 21FLDADEBSL4 Barnes Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF6 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF7 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD9 Long Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF8 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE6 970114 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF1 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE9 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSF4 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE4 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE3 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE1 970312 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG1 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD8 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC9 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD2 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD6 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD5 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSI2 FLORIDA BAY STATION 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSE2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSK8 970114 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ6 35350 
222 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ7 

FLORIDA BAY MONITORING STATION FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ8 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ9 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSK2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSK3 

FLORIDA BAY MONITORING STATION FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSJ2 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSK7 970312 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSI8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL2 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL4 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL5 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL7 

FLORIDA BAY MONITORING STATION FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL8 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSL9 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSK4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH7 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG3 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG4 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG5 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG8 

FLORIDA BAY MONITORING STATION 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH1 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH2 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH4 970312 6005 LONG SOUND ESTUARY 3M 21FLDADEMBK8 Manatee Bay 6005 LONG SOUND ESTUARY 3M 21FLSFWMMBLS22 

NE LONG SOUND JUST W. OF MBLS02 RECORDER AT ST 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSG2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH9 FLORIDA BAY STATION 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSI3 970212 6005 LONG SOUND ESTUARY 3M 21FLSFWMMBLS02 

NE CORNER OF LONG SOUND PROPER 

6005 LONG SOUND ESTUARY 3M 21FLDADEMBL5 Manatee Bay 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSI5 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSI7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADEMBL2 Manatee Bay 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSH6 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLDADELSE3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSD8 Long Sound 
224 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLDADELSD9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSE1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSA9 Long Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLDADELSB1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSC6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSB2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSD7 970114 6005 LONG SOUND ESTUARY 3M 21FLDADELSJ9 Long Sound 
226 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC8 FLORIDA BAY STATION 6005 LONG SOUND ESTUARY 3M 21FLDADELSF7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSL9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSK3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMTCC9 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLDADELSG1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSG8 Long Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLDADELSG9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH6 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH9 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI1 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI3 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSI5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSF8 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADELSH2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLDADEFBLS Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB1 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA2 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA9 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMFLAB08 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLBI9 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA8 Long Sound, 6005 LONG SOUND ESTUARY 3M 21FLSFWMFBLS 

FLORIDA BAY MONITORING STATION 
228 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB2 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA7 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA6 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA5 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA4 970114 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC7 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSA3 

FLORIDA BAY MONITORING STATION FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLBE4 

FLORIDA BAY MONITORING SITE 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC2 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC6 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC5 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC4 Long Sound 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC3 970312 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB3 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLBD7 

FLORIDA BAY MONITORING SITE 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSC1 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB9 FLORIDA BAY STATION 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB8 35350 6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB7 

FLORIDA BAY MONITORING STATION 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB6 

FLORIDA BAY STATIONS FROM DERM 

6005 LONG SOUND ESTUARY 3M 21FLSFWMLSB5 Long Sound 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040943FTM INDIAN MOUND ESTATES 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040941FTM LONG ISLAND POINT 6009 PLANTATION KEY COASTAL 3M 21FLDOH MONROE352 FL687721 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040940FTM1 TREASURE HARBOR 1 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040938FTM HOLIDAY ISLES 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040939FTM PELICAN COVE 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040945FTM BOATMANS COLONY 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040944FTM PLANTATION KEY COLONY 6009 PLANTATION KEY COASTAL 3M 21FLFTM 28040942FTM VENETIAN SHORES 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLFTM 28040936FTM CAPTAIN CANVAS 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLDOH MONROE180 FL028189 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLFTM 28040933FTM PAPA JOE'S 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLFTM 28040935FTM CARRIBE BOATS 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLFTM 28040937FTM WHALE HARBOR 6017 UPPER MATECUMBE KEY COASTAL 3M 21FLFTM 28040934FTM WORLDWIDE SPORTSMAN 6019 LOWER MATECUMBE KEY COASTAL 3M 21FLFTM 28040929FTM PORT ANTIGUA 1 6019 LOWER MATECUMBE KEY COASTAL 3M 21FLFTM 28040928FTM LOWER MATECUMBE BEACH 6019 LOWER MATECUMBE KEY COASTAL 3M 21FLFTM 28040931FTM PORT ANTIGUA 3 6019 LOWER MATECUMBE KEY COASTAL 3M 21FLFTM 28040932FTM DAVIS SHORES 6019 LOWER MATECUMBE KEY COASTAL 3M 21FLKTNCTNCFL05 Cudjoe Key, Cudjoe Gardens 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB8 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA4 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA5 970218 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA6 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD3 970317 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA9 970317 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB1 970218 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB2 35350 
230 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB3 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB4 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC1 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC5 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC4 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC6 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC2 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD2 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA3 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD1 FLORIDA BAY STATION 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC9 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC8 

FLORIDA BAY MONITORING SITE 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBC7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBB6 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA1 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA1 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB3 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB2 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA8 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA7 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA6 Davis Cove 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA5 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB5 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA2 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB6 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD8 FLORIDA BAY STATION 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD7 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD6 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD5 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD3 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD2 970213 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEBWC3 Blackwater Sound 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCA3 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC7 

FLORIDAY BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD4 FLORIDA BAY STATION 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD8 

FLORIDA BAY MONITORING SITE 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB11 L. Madeira Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD7 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD6 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD5 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD4 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB4 

FLORIDA BAY MONITORING SITE 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC9 970213 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBA2 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC5 Davis Cove 
232 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC4 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC3 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC2 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCC1 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB9 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCB7 970314 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMDCD1 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD7 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD8 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD9 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD7 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD5 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC3 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD3 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD3 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD1 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC8 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC7 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC6 970213 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC5 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBTC 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCD4 35350 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC5 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 112WRD 251253080320100 Trout Creek at Mouth, Fl 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABB5 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABB8 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABB9 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC1 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC2 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD6 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC4 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD5 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC6 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC7 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC8 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC9 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD1 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABD2 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC2 Trout Cove, 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEABC3 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC8 970121 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA1 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMLMI9 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMJBL4 

BISCAYNE BAY MONITORING STAITON 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB24 Butternut Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB23 Park Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB22 Captain s Key 
234 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB12 Terrapin Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB09 Duck Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC9 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBLM 

FLORIDA BAY MONITORING STATION 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFLAB21 Porpoise Lake 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCC1 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB9 970314 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB8 

FLORIDA BAY MONITORING STATION FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB7 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB6 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB5 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA2 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB3 970121 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA3 970314 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB1 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA9 970213 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA7 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA6 Trout Cove 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCA5 970121 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMFBD5 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMTCB4 

FLORIDA BAY STATIONS FROM DERM 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLO200316 

Florida Bay - 2000 Feet W of Tavenier 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200411 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200322 StateNonTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200124 StateNonTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200026 StateNonTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200022 StateNonTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD6 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLO200319 Florida Bay - Lignumvitae Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTT200024 StateTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLO200315 

Florida Bay - 2 Miles NW Lignumvitae Key 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLO200312 Florida Bay - Russell Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLO200309 Florida Bay - Tern Key 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD9 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRIFLW200512 Florida/Biscayne Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADELMI9 Little Madeira Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD1 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD2 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD3 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD4 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD5 Florida Bay 
236 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD6 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200425 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTR200447 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBLM Little Madeira Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABD1 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTT200310 StateTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTT200224 StateTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLFMRISTT200103 StateTrend - Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD5 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA7 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB5 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB3 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB1 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD7 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA6 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA5 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA3 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA1 Trout Cove 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCA9 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC5 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD3 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCD1 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC9 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC8 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB6 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC6 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB7 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC4 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC3 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC2 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC1 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCB9 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBD9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADETCC7 Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC1 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC8 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB3 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB4 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB5 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB6 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBTC Trout Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB1 Davis Cove 
238 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA9 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC2 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC3 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC4 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC5 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC6 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC7 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB8 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA1 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC7 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC6 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC4 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC3 

BISCAYNE BAY MONITORING STAITON 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC2 970314 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABC1 35350 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB2 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABB8 Alligator Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB9 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA2 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA3 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA5 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA6 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA7 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCA8 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLSFWMABB9 Alligator Bay 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA5 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB4 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC1 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCC9 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC3 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCB7 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC4 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA6 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA8 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA9 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB1 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB2 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB3 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBB6 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA3 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD6 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD7 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD8 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC2 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD5 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA2 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA1 Florida Bay 
240 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBA4 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC7 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD4 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEDCD1 Davis Cove 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC6 Florida Bay 8078 FLORIDA BAY GULF 2 COASTAL 3M 21FLDADEFBC5 Florida Bay 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M 21FLDOH MONROE181 FL928684 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M 21FLDOH MONROE178 FL931734 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M FWC-WQMP236 Alligator Shoal 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M FWC-WQMP235 Lower Matecumbe Key 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M FWC-WQMP239 Lower Matecumbe Chnl 8084 LOWER MATECUMBE KEY OCEAN COASTAL 3M FWC-WQMP238 Matecumbe Harbor 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP401 Alligator Reef 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP232 Upper Matecumbe Key 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP230 The Rocks 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP229 Plantation Point 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP228 Conch Reef 8085 PLANTATION KEY OCEAN COASTAL 3M FWC-WQMP233 Upper MateCumbe Chnl 8086 RODRIGUEZ KEY OCEAN COASTAL 3M FWC-WQMP227 Triangles 8086 RODRIGUEZ KEY OCEAN COASTAL 3M FWC-WQMP226 Tavernier Harbor 8086 RODRIGUEZ KEY OCEAN COASTAL 3M FWC-WQMP224 Molasses Reef Channel 8086 RODRIGUEZ KEY OCEAN COASTAL 3M FWC-WQMP223 Mosquito Bank 8087 KEY LARGO OCEAN 1 COASTAL 3M FWC-WQMP221 Radabob Key Channel 8087 KEY LARGO OCEAN 1 COASTAL 3M FWC-WQMP220 Radabob Key 8087 KEY LARGO OCEAN 1 COASTAL 3M FWC-WQMP217 Rattlesnake Key 8087 KEY LARGO OCEAN 1 COASTAL 3M FWC-WQMP215 Carysfort Channel 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

8087 KEY LARGO OCEAN 1 COASTAL 3M FWC-WQMP214 Port Elizabeth 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADEJBD4 Joe Bay 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD5 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBI3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE7 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG2 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG1 35350 
242 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF8 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF7 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF6 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF5 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF4 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF3 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMMBLS03 

CENTRAL LITTLE BLACKWATER SOUND 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBF1 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE3 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE8 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE6 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC7 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE5 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE2 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE1 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD8 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBE9 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC9 Little Blackwater 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA4 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA3 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA2 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA1 Little Blackwater, 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMFLAB06 L. Blackwater Snd 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA7 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA8 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBL5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELSF6 Long Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC4 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ6 Little Blackwater Sound 
244 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBK2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD4 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD3 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD2 970113 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG3 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA5 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBD6 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBJ5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC2 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC1 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB9 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB8 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB7 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB6 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB4 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB3 

FLORIDA BAY MONITORING SITE 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB2 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBB1 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBA9 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBC8 

FLORIDA BAY MONITORING SITE 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK9 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL4 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF7 Little Blackwater Sound 
246 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBE3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL9 970113 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLSE5 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLSF2 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL1 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL2 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL8 FLORIDA BAY STATION 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL7 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL6 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBA6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG4 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD3 Little Blackwater Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBL5 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBD1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBC9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI5 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ8 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ7 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ6 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG8 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ5 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ4 

FLORIDA BAY MONITORING STATION FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ3 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ2 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBJ1 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI8 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK1 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH1 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI4 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI3 970113 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH3 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH4 970311 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH5 

FLORIDA BAY MONITORING STATION FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH6 Little Blackwater 
248 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH7 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBF9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI1 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH9 

FLORIDA BAY MONITORING STATION 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBH8 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI7 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG9 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG4 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBI2 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK3 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG5 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG6 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG8 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH2 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBH3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK6 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB3 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG5 970113 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG6 Little Blackwater 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK4 

FLORIDA BAY STATIONS FROM DERM 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB2 Little Blackwater Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK8 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBG7 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBK7 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADELBB1 Little Blackwater Sound 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLSFWMLBG7 35350 6005A LITTLE BLACKWATER SOUND ESTUARY 3M 21FLDADEMBL9 Manatee Bay 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC3 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC2 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB9 970117 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB8 

FLORIDA BAY MONITORING SITE 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC1 

BISCAYNE BAY MONITORING STAITON 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC4 

FLORIDA BAY MONITORING SITE 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC5 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC7 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD2 

FLORIDA BAY MONITORING SITE 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB6 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA3 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD1 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWC6 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA6 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLFMRISTR200120 

StateNonTrend - Blackwater Sound 

6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA1 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD3 FLORIDA BAY STATION 
250 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBSK8 

FLORIDA BAY MONITORING STATION 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBSK9 

BISCAYNE BAY MONITORING STAITON 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA1 

FLORIDA BAY MONITORING STATION 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA5 970317 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA4 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB5 FLORIDA BAY STATION 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA7 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA8 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB1 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB2 970218 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB3 

FLORIDA BAY STATIONS FROM DERM 

6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWB4 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWA2 

FLORIDA BAY MONITORING STATION 

6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD3 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA3 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC2 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC4 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC5 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC6 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC7 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC8 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB9 Blackwater Sound 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD2 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB8 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD4 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD5 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD6 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMFBBW 

BISCAYNE BAY MONITORING STAITON 

6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEFBBW Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD8 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD7 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWD1 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD6 35350 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD7 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD8 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD9 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB5 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB4 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB3 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWC1 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB1 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMBWD4 970317 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA8 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA7 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA6 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA5 Blackwater Sound 
252 Water Quality Assessment Report: Florida Keys 

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA4 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLSFWMFLAB05 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWA2 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB6 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB7 Blackwater Sound 6005B BLACKWATER SOUND ESTUARY 3M 21FLDADEBWB2 Blackwater Sound 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040947FTM HAMMER POINT 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040952FTM BUCCANEER POINT 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040949FTM1 SHERATON KEY LARGO 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040959FTM 

CROSS KEY WATERWAYS ESTATES 

6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040958FTM LARGO SOUND 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040957FTM 

JOHN PENNEKAMP CORAL REEF SP 

6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040956FTM WINSTON WATERWAYS 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040955FTM 

KEY LARGO KAMPGROUND AND MARINA 

6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040961FTM ANGLER'S PARK 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040953FTM PORT LARGO 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040962FTM SEXTON COVE 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040951FTM KEY LARGO BEACH 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040950FTM MANDALAY 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040948FTM KEY LARGO OCEAN RESORTS 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040946FTM 

BLUEWATER MOBILE HOME PARK 

6006A SOUTH KEY LARGO COASTAL 3M 21FLDOH MONROE182 FL955172 6006A SOUTH KEY LARGO COASTAL 3M 21FLDOH MONROE320 FL058417 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040954FTM KEY LARGO TRAILER VILLAGE 6006A SOUTH KEY LARGO COASTAL 3M 21FLKTNCTNCFL02 Big Coppitt, Porpoise Point 
Water Quality Assessment Report: Flo

WBID Waterbody Segment Type Class Storet Station ID Station Description 

6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040960FTM TWIN LAKES 6006A SOUTH KEY LARGO COASTAL 3M 21FLKTNCTNCFL03 Saddlebunch Keys, Bay Point 6006A SOUTH KEY LARGO COASTAL 3M 21FLKTNCTNCFL01 

Boca Chica, Boca Chica Ocean Shores 

6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040966FTM GILBERT'S ANCHORAGE 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040965FTM LAKE SURPRISE ESTATES 2 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040964FTM LAKE SURPRISE ESTATES 1 6006A SOUTH KEY LARGO COASTAL 3M 21FLFTM 28040963FTM GARDEN COVE 6006A SOUTH KEY LARGO COASTAL 3M 21FLKTNCTNCFL04 Sugarloaf Key, Sugarloaf Shores 6006B MIDDLE KEY LARGO COASTAL 3M 21FLSFWMBSJ8 6006B MIDDLE KEY LARGO COASTAL 3M 21FLSFWMBSL8 

FLORIDA BAY MONITORING STATION 

6006B MIDDLE KEY LARGO COASTAL 3M 21FLSFWMBSH9 

FLORIDA BAY MONITORING SITE 

6006B MIDDLE KEY LARGO COASTAL 3M 112WRD 251105080231800 

JEWFISH CREEK AT US 1, KEY LARGO FL 

6006B MIDDLE KEY LARGO COASTAL 3M 21FLSFWMBSI4 

FLORIDA BAY MONITORING STATION 

6006B MIDDLE KEY LARGO COASTAL 3M 21FLSFWMBSI8 

FLORIDA BAY MONITORING SITE 

6006C NORTH KEY LARGO COASTAL 3M 21FLFTM 28040969FTM DISPATCH CREEK 1 6006C NORTH KEY LARGO COASTAL 3M 21FLFTM 28040970FTM OCEAN REEF CLUB MARINA 
254 Water Quality Assessment Report: Florida Keys 

Appendix E: Permitted Facilities and Landfills in the Florida Keys Basin, by P

Table E.1: Permitted Facilities with Discharges, by Planning Unit 

Facility ID Facility Name Address City Type1 Status2 

Upper Keys Planning Unit 

FLA016679 Morada Bay Restaurant STP Overseas Highway, Mile Marker (MM) 81.4 Islamorada DW A FLA017168 Intus Residences STP 101 Crandon Blvd., #175 Key Biscayne DW A FLA017261 Coral Shores Coin Laundry MM 90, Overseas Highway Tavernier IW A FLA014836 Mariner’s Club WWTP 97501 Overseas Highway Key Largo DW A FLA014994 Mariner’s Hospital 50 High Point Road Tavernier DW A FLA015002 Harbour 92 Condominium 200 Harbor View Drive Tavernier DW A FLA014876 Careless Navigator–Formerly Hog Heaven 85361 Overseas Highway Islamorada DW A FLA014736 Anthony’s (Was: Korkey’s Island Seafood) 97630 Overseas Highway Key Largo DW A FLA014700 Key Largo Elementary School 104801 Overseas Highway Key Largo DW A FLA014706 Newport Village Apartments 1 Harry Davis Cir (MM 101, U. S. Highway 1) Key Largo DW A FLA014712 US Coast Guard Station Islamorada 183 Palermo Dr. Islamorada DW A FLA014727 Paradise Point MHP 99 Seaside Ave. Key Largo DW A FLA014729 Sea Gulls Condominium 87465 Old Highway Islamorada DW A FLA014732 Key Largo Kampground & Marina 101551 Overseas Highway Key Largo DW A FLA014733 Florida Keys RV Park 106003 Overseas Highway Key Largo DW A FLA014734 Futura Yacht Club 88540 Overseas Highway Tavernier DW A FLA014737 Bentley’s Restaurant 82779 Overseas Highway Islamorada DW A FLA014739 Beacon Reef Condominium 83201 Old Highway Islamorada DW A FLA014750 Tarpon Flats Condominiums 81250 Overseas Highway Islamorada DW A FLA014754 Senor Frijoles Restaurant 103900 B Overseas Highway Key Largo DW A FLA014755 Captain Jax R V Park (H) 103650 Overseas Highway Key Largo DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA014759 Pelican Palms Trailer Park Old Highway, MM 82.7 Islamorada DW A FLA014765 Tradewinds/K-mart Shopping Center 101499 Overseas Highway Key Largo DW A FLA014770 Paradise Pub–STP Overseas Highway, MM 102 Key Largo DW A FLA014774 Islamorada Laundry 225 Dogwood Lane Islamorada IW A FLA014775 Calusa Camp Resort U. S. Highway 1 & Calusa St. Key Largo DW A FLA014777 Sunset Hammock Condominium 94220 Overseas Highway Tavernier DW A FLA014779 Island Grill (was Big Conch B & G, Hawk Channel B&G) U. S. Highway 1, MM 85.5 Islamorada DW A FLA014780 Sand Pebbles Condominium WWTF 80450 Overseas Highway, #101 Islamorada DW A FLA014789 Fantasy Harbor Condo (H) Units 3&5 76430 Overseas Highway Islamorada DW A FLA014791 Westin Beach Resort Key Largo 97000 Overseas Highway Key Largo DW A FLA014795 Koblick Marine Center 51 Shoreland Drive Key Largo DW A FLA014802 Coral Harbor Club 88181 Old Highway Islamorada DW A FLA014803 Tamarind Bay Club, Inc. 104500 Overseas Highway Key Largo DW A FLA014806 Lorelei Restaurant 81920 Overseas Highway Islamorada DW A FLA014810 Pink Plaza aka: N Key Largo Plaza 103400 Overseas Highway, #240 Key Largo DW A FLA014817 Winn Dixie (Key Largo) 105900 Overseas Highway Key Largo DW A FLA014819 Quay Restaurant–Key Largo WWTF 102050 South Overseas Highway Key Largo DW A FLA014837 Florida Bay Club 103500 Overseas Highway Key Largo DW A FLA014842 Pelican Cove Condominium 84457 Old Overseas Highway Islamorada DW A FLA014846 Maison Matecumbe 80639 Old Highway Islamorada DW A FLA014851 Green Turtle Inn STP Overseas Highway, MM 81 Islamorada DW A FLA014853 Pilot House Restaurant 13 Seagate Blvd. Key Largo DW A FLA014860 Key Largo Shopper (H) Corner State Rd. 4A & U. S. Highway 1 Key Largo DW A FLA014864 Harbor Lights Motel of Holiday Isle 84951 Overseas Highway Islamorada DW A FLA014865 Ramada Inn (KL) 99751 Overseas Highway Key Largo DW A FLA014868 Marina del Mar 529 Caribbean Drive Key Largo DW A 
256 Water Quality Assessment Report: Florida Keys 

Facility ID Facility Name Address City Type1 Status2 

FLA014871 Cross Key Inc. Morris Avenue off U. S. Highway 1 Key Largo DW A FLA014880 Landings of Largo 9800 Dockside Drive Key Largo DW A FLA014881 Tavernier Harbor House WWTF 90311 Overseas Highway Tavernier DW A FLA148822 Gusto’s 82748 Overseas Highway Islamorada DW A FLA014885 Manatee Bay Club 100 Morris Lane Key Largo DW A FLA014888 Howard Johnson’s Key Largo Overseas Highway, MM 102 Key Largo DW A FLA014895 Smuggler’s Cove Marina & Resort (aka Richmond’s Landing) 85500 Overseas Highway Islamorada DW A FLA014898 Coral Sands Trailer Park WWTP 95350 Overseas Highway, Box 15 Key Largo DW A FLA014900 Plaza 103/Leeside Prof Bldg 102900 Overseas Highway Key Largo DW A FLA014901 Summer Sea Condominium 88500 Overseas Highway Tavernier DW A FLA014910 Boy Scouts of America Sea Base STP 73800 Overseas Highway Islamorada DW A FLA014915 Marriott/Key Largo (was Twin Harbors) Overseas Highway, MM 104 Key Largo DW A FLA014918 Ocean Reef Club Maintenance Road Key Largo IW A FLA014926 Whale Harbor Inn STP Overseas Highway, MM 83.7, Ocean Islamorada DW A FLA014927 Kelly’s Motel on the Bay 104220 Overseas Highway Key Largo DW A FLA014928 Hobo’s Marina 104200 Overseas Highway Key Largo DW A FLA014930 Koulangatta R O Plant 325 Atlantic Street Islamorada IW A FLA014933 Seabreeze Trailer Park 87425 State Rd. 4-A Islamorada DW A FLA014938 Steve’s Timeout Barbeque Overseas Highway MM 81.5 Islamorada DW A FLA014944 Largo Park (fka Glen’s) 101600 Overseas Highway Key Largo DW A FLA014950 Cafe Largo STP 99530 Overseas Highway Key Largo DW A FLA014958 Tavernier Hotel 91865 Overseas Highway Tavernier DW A FLA014960 New Mariners Hospital MM 91.5 Overseas Highway Tavernier DW A FLA014963 Waldorf Plaza Shopping Center Laguna Ave. near U. S. Highway 1 Key Largo DW A FLA014966 Driftwood Travel Trailer Park East of U. S. Highway 1 Tavernier DW A FLA014969 Islamorada Bakery/Restaurant 81620 Overseas Highway Islamorada DW A FLA014977 Key Largo Harbor Marina 100 Ocean Drive Key Largo DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA014979 Fish House Restaurant 102401 Overseas Highway Key Largo DW A FLA014983 Sea Gulls Condominium 200 Wren Street Tavernier DW A FLA014989 Cheeca Lodge U. S. Highway 1, Mile Post # 82 Islamorada DW A FLA014991 Palms of Islamorada Condominium 79901 Overseas Highway Islamorada DW A FLA014997 Sunset Acres MHP Overseas Highway, MM 92.9 Tavernier DW A FLA015000 Breezy Palms Resort Motel 80015 Overseas Highway Islamorada DW A FLA015005 Silver Shores MHP Inc Overseas Highway, MM 96, Oceanside Key Largo DW A FLA015007 Sunset Inn Resort 82200 Overseas Highway Islamorada DW A FLA015010 Kawama Yacht Club Condominium 1500 Ocean Bay Drive Key Largo DW A FLA015030 Pennekamp State Park P. O. Box 487 Key Largo DW A FLA014723 Anchor Condominium Overseas Highway, MM 92.5 Tavernier DW A FLA014746 Ocean Divers, Inc. 522 Caribbean Drive Key Largo DW A FLA014833 Snook’s 99470 Overseas Highway Key Largo DW A FLA015017 Blue Waters Trailer Village Burton Drive Tavernier DW A FLA179949 Waffle House OF Key Largo 100270 Overseas Highway Key Largo DW A FLA014768 Dolphins Plus (H) 147 Corinne Place Key Largo DW A FLA014890 Moon Bay Condominium 104350 Overseas Highway Key Largo DW A FLA014998 Sandy Point Condominium 108 Costa Brava Drive Islamorada DW A FLA015020 Papa Joe’s Restaurant U. S. Highway 1, MM 79.7 Islamorada DW A FLA014945 Hampton Inn (Was Ocean 80) Overseas Highway, MM 80 Islamorada DW A FLA017286 Tracher Marine WWTF Overseas Highway, MM 81.2 Islamorada DW A FLA014937 Squid Row Restaurant 81901 Overseas Highway Islamorada DW A FLA014708 Coral Shores High School 89951 Overseas Highway Tavernier DW A FLA014849 Sanctuary Condominium @ Key Largo 100 Sanctuary Drive Key Largo DW A FLA014959 Holiday Inn (Key Largo) 99701 Overseas Highway Key Largo DW A FLA014786 Pizza Hut Restaurant–Key Largo 99021 Overseas Highway Key Largo DW A FLA014801 Tavernier Towne Shopping Center Overseas Highway, MM 91.3 Tavernier DW A FLA014891 Plantation Yacht Harbor Resort 87000 Overseas Highway Islamorada DW A 
258 Water Quality Assessment Report: Florida Keys 

Facility ID Facility Name Address City Type1 Status2 

FLA014829 Executive Bay Club Condo 87200 Overseas Highway Islamorada DW A FLA014879 Pelican Plaza WWTF 86701 Overseas Highway Islamorada DW A FLA014731 Matecumbe Resort 76261 Overseas Highway, MM 76.5 Islamorada DW A FLA015003 Howard Johnson’s Islamorada at Holiday Isle Overseas Highway, MM 84.2 Islamorada DW A FLA014757 Days Inn of Islamorada 82749 Overseas Highway, MM 82.5 Islamorada DW A FLA014921 Marker 88 Restaurant S T P Overseas Highway, MM 88 Islamorada DW A FLA014699 Plantation Key Government Complex 2 High Point Road Tavernier DW A FLA014743 Italian Fisherman Restaurant 104000 Overseas Highway Key Largo DW A FLA014767 Woody’s Cocktail Lounge Overseas Highway, MM 82, Gulf Islamorada DW A FLA014852 Lake Surprise II Condo 16 Mangrove Lane Key Largo DW A FLA015023 Ocean Pointe Condominiums 500 Burton Drive Tavernier DW A FLA014866 Dino’s (was Captain’s Cove) 81031 Overseas Highway Islamorada DW A FLA014964 Key Largo Ocean Resort 94825 Overseas Highway Key Largo DW A FLA014726 Holiday Isle Resort Overseas Highway, MM 84.2 Islamorada DW A FLA014745 Windley Key Trailer Park 84961 Overseas Highway Islamorada DW A FLA014782 Ocean Harbour Condominium 87851 S. R. 905 Islamorada DW A FLA014797 Uncle’s Restaurant 80939 Overseas Highway Islamorada DW A FLA014993 Rock Harbor Club 97652 Overseas Highway Key Largo DW A FLA015019 Holiday by the Sea Condominium 300 Ocean Drive Key Largo DW A FLA014697 Plantation Key Elementary School 100 Lake Street Tavernier DW A FLA014932 Big Kahuna 106690 Overseas Highway Key Largo DW A FLA014807 La Siesta Resort Overseas Highway, MM 80.4 Islamorada DW A FLA014811 Best Western Suites of Key Largo 201 Ocean Drive Key Largo DW A FLA014840 Islamorada Professional Bldg P. O. Box 1361 Islamorada DW A FLA017385 Theater of the Sea MM 84.5, Overseas Highway Islamorada DW A FLA014970 America Outdoors Campground 97450 Overseas Highway Key Largo DW A FLA014724 Coral Grill Restaurant U. S. Highway 1, MM 83.5, Gulf Islamorada DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA015015 Buttonwood Bay Condominiums U. S. Highway 1, 96000 Overseas Highway Key Largo DW A FLA014788 Fantasy Harbor Condo (H) Units 1&4 MM 76.5, U. S. Highway 1 Lower Matecumbe Key DW A FLA014962 Turek Building Turek Building, Apt. 213 Tavernier DW A FLA014984 Coastal Waterway Trailer Park 101620 Overseas Highway Key Largo DW A FLA015001 Anchorage Resort & Yacht Club 107800 Overseas Highway Key Largo DW A 

FLRNEE272 King’s Kamp 103620 Overseas Highway Key Largo NEX A FLRNEE273 Captain Jax 103650 Overseas Highway Key Largo NEX A 

FLA013650 Southern Bell T & T Co Right of Way U. S. Highway 1 None UIC A FLA014787 Indian Waterways Village (H) 89240 Overseas Highway Tavernier DW A FLA014847 Tropical Reef Resort 84977 Overseas Highway Islamorada DW A FLA014942 Harborage Condominiums Overseas Highway, MM 97.5 Key Largo DW A FLA014972 Tropic Vista Motel 90701 Overseas Highway Tavernier DW A FLA014995 Family Paradise Island 107900 Overseas Highway Key Largo DW A FLA014956 Caloosa Cove Marina/Resort 73801 Overseas Highway Islamorada DW A FLA014769 Chesapeake of Whale Harbor 83409 Overseas Highway Islamorada DW A FLA014916 Lazy Days Restaurant 79867 Overseas Highway Islamorada DW A FLA014832 Key Largo Yacht Club & Condo 1501 Ocean Bay Drive Key Largo DW A FLA178519 Shrimp Improvement Systems LP 88005 Overseas Highway Islamorada IW A 

Middle Keys Planning Unit 

FLA016256 Marathon Plaza II 5101 Overseas Highway Marathon DW A FLA014903 Coconut Cay Resort (fka: Sea Horse Motel) 7196 Overseas Highway Marathon DW A FLA014747 Ramada (was Wellesley Inn/Hojo’s Mth) U. S. Highway 1 Marathon DW A FLA014707 Marathon High School 350 Sombrero Beach Road Marathon DW A FLA014906 Maytag Coin Laundry 5998 Overseas Highway Marathon IW A FLA014869 International House of Pancakes 6495 Overseas Highway Marathon DW A FLA014703 Monroe Regional Service Center 2796 Overseas Highway Marathon DW A 
260 Water Quality Assessment Report: Florida Keys 

Facility ID Facility Name Address City Type1 Status2 

FLA014738 Pizza Hut (Marathon) 9981 Overseas Highway Marathon DW A FLA014740 Reef at Marathon Resort Club 6800 Overseas Highway/U. S. Highway 1 Marathon DW A FLA014742 Marathon Key Beach Club 4590 Overseas Highway Marathon DW A FLA014751 Boot Key Marina/Faro Blanco Oceanside 1000 15th St. Marathon DW A FLA014752 Sombrero Resort and Lighthouse Marina 19 Sombrero Blvd. Marathon DW A FLA014760 Brenner Office Building (H) Duck Key Dr. & Golf Course Dr. Duck Key DW A FLA014766 Aultman Construction Co Inc 6799 Overseas Highway Marathon DW A FLA014771 Tropic Isle Apts. 41st Street, Gulf Marathon DW A FLA014772 Hawk’s Cay Resort MM 61 Duck Key DW A FLA014776 Keys Marine Laboratory Overseas Highway, MM 68 Gulf Layton DW A FLA014778 Seawatch Condominium 11840 Overseas Highway Marathon DW A FLA014783 Casa de los Tres (H) 1501 Sombrero Boulevard Marathon DW A FLA014784 Marathon Manor Nursing Home 320 Sombrero Beach Road Marathon DW A FLA014790 Cobia Point Condo 1515 Sombrero Blvd. Marathon DW A FLA014798 Marathon Trailerama STP 1571 Overseas Highway Marathon DW A FLA014799 Royal Plum Condominium 133 Coco Plum Drive Marathon DW A FLA014809 Mid-Town Trailer Park 37th Street, Gulf Marathon DW A FLA014825 Trade Winds West Condo 5301 Ocean Terrace Marathon DW A FLA014830 Treasure Cay Condominium 130 Coco Plum Drive Marathon DW A FLA014831 Faro Blanco Condominium 1996 Overseas Highway Marathon DW A FLA014834 Hampton Inn Marathon 1688 Overseas Highway Marathon DW A FLA014838 Captain’s Quarters Condominium 227 South Anglers Drive Marathon DW A FLA014874 Sombrero Ridge Condo 303 Sombrero Blvd. Marathon DW A FLA014884 Island Club Condo 9 Sombrero Blvd. Marathon DW A FLA014886 Home Depot–Marathon WWTP/ Boot Key Harbor Plaza Overseas Highway, MM 49.7 Marathon DW A FLA014899 Gulfshore Apts. (The Rock Apts.) 999 41st Gulf Marathon DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA014913 Sombrero County Club 4000 N. Sombrero Blvd. Marathon DW A FLA014934 Sombrero Reef Inn 500 Sombrero Beach Road Marathon DW A FLA014936 Fishermen’s Hospital 3101 Overseas Highway Marathon DW A FLA014941 Coyne’s Laundry 11201 Overseas Highway Marathon IW A FLA014947 Key RV Park 6099 Overseas Highway Marathon DW A FLA149616 Prieto, Radames and Regina Lemon Avenue & Ferreira Street Grassy Key IW A FLA014965 Jolly Roger Trailer Park 59275 Overseas Highway Marathon DW A FLA014974 Sugarloaf Key KOA U. S. Highway 1, Sugarloaf Key Summerland Key DW A FLA014975 Coral Club Condominium 389 Anglers Drive North Marathon DW A FLA014981 Harbor House Condominium 1217 Sombrero Blvd.. Marathon DW A FLA014985 K-mart Plaza Marathon 5561 Overseas Highway Marathon DW A FLA014986 Spanish Galleon Condo 1115 Sombrero Blvd. Marathon DW A FLA014988 Key Lime Resort 11600–1st Ave., Gulf Marathon DW A FLA014990 Schooner Condominium WWTP 605 Sombrero Beach Road Marathon DW A FLA015004 Office Depot Plaza 11100 Overseas Highway Marathon DW A FLA015006 Blackfin Resort & Marina aka: Econo Lodge & Hurricane 4650 Overseas Highway Marathon DW A FLA015008 Coral Lagoon Resort 12399 Overseas Highway Marathon DW A FLA015011 Galway Bay Mobile Home Park 1361 Overseas Highway Marathon DW A FLA015012 Coco Plum Beach Apts/Terraces Condo 105 Ave. D, Coco Plum Marathon DW A FLA015018 Lucy Apartments 489–63rd St., Ocean Marathon DW A FLA015027 Monroe Regional Services Center 2796 Overseas Highway Marathon DW A FLA014976 Marathon Marina 1021 11th Street Marathon DW A FLA014999 Outdoor Resorts at Long Key Overseas Highway, MM 65.5 Long Key DW A FLA014897 Sombrero Marina @ Dockside Lounge 35 Sombrero Blvd. Marathon DW A FLA014835 Panda House Chinese Restaurant 5230 Overseas Highway Marathon DW A FLA014749 Wendy’s Restaurant 5150 Overseas Highway Marathon DW A FLA014919 Windy City Laundry 1700 Overseas Highway Marathon IW A 
262 Water Quality Assessment Report: Florida Keys 

Facility ID Facility Name Address City Type1 Status2 

FLA014744 Casa Cayo Condo STP 1500 Overseas Highway Marathon DW A FLA014822 T & W Seafood (aka Willey’s Rest) 1490 Overseas Highway Marathon DW A FLA015016 Long Key Townhouse Condominium 65700 Overseas Highway Long Key DW A FLA015025 Long Key State Recreation Area 67400 Overseas Highway Long Key DW A FLA014978 Little Italy Restaurant Overseas Highway, MM 68.5 Layton DW A FLA014996 Harbor Club South Condo Assoc 423 Sombrero Beach Road Marathon DW A FLA014720 Key Colony Beach, City of 600 N. 8th Street Key Colony Beach DW A FLA014823 Quay Restaurant 12650 Overseas Highway Marathon DW A FLA014968 Kingsail Resort 7050 Overseas Highway Marathon DW A FLA014987 Pelican Motel & Trailer Park Overseas Highway, MM 59.2 Gulf Marathon DW A FLA014863 Marathon Vet Clinic (H) 11187 Overseas Highway Marathon DW A FLA014873 Oceanside Isle Apartment Overseas Highway, MM 70 Long Key DW A FLA014935 Fiuesta Key KOA Overseas Highway, MM 70 Long Key DW A FLA014698 Eastwind Apartments 240 Sombrero Blvd. Marathon DW A FLA014728 Buccaneer Lodge Resort STP 2600 Overseas Highway Marathon DW A FLA014792 Gulfside Village Condo Assn 5800 Overseas Highway Marathon DW A FLA015014 Bonefish Tower 2000 Coco Plum Dr. Marathon DW A FLA014856 Marie’s Yacht Harbor Club Avenue “I” Coco Plum Beach Marathon DW A FLA014992 Hawks Nest 1 Kyle Way South Marathon DW A FLA014785 Holiday Inn (Marathon) 13201 Overseas Highway Marathon DW A FLA014713 USCG Station (Marathon) 1800 Overseas Highway Marathon DW A 

FLRNEE280 Hog Key Marine, Inc. 1096 Overseas Highway Marathon NEX A FLRNEE286 Seven Mile Marina, Inc. 1090 Overseas Highway Marathon NEX A 

FLA016202 Publix Plaza Overseas Highway at Sombrero Beach Rd. Marathon DW A FLA014709 Marathon Airport Terminal 9400 Overseas Highway Marathon DW A FLA014735 Marathon Country Club Condominium 15 Sombrero Blvd. Marathon DW A FLA014710 Stanley Switlik Elementary 3400 Overseas Highway Marathon DW A FLA014877 Guidance Clinic of the Middle Keys 3000 41st Street, Ocean Marathon DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA017532 Faro Blanco Resort 1996 Overseas Highway Marathon DW A FLA179612 Sombrero Country Club P. O. Box 500969 Marathon IW A FLA181293 Grassy Key Aquatic Center Inc 59300 Overseas Highway Grassy Key IW A 

Lower Keys Planning Unit 

FLA017085 Big Pine Key Fishing Lodge WWTF Overseas Highway, MM 33 Big Pine Key DW A FLA014701 Gerald Adams Elementary School 5855 College Rd. Key West DW A FLA014716 Key Deer National Wildlife Refuge P. O. Box 510 Big Pine Key DW A FLA014717 City Electric aka Stock Island Steam WWTP Front St., Stock Island Key West DW A 

FL0002089 Utility Bd of Key West/Stock Island PP Front Street Key West IW A 

FLA014719 Key West Resource Recovery Facility 5701 West Junior College Rd Key West IW A FLA014721 Lower Florida Keys Health Systems 5900 Junior College Rd Key West DW A 

FL0025976 Richard A Heyman WWTP–Key West Trumbo Point Annex–Fleming Key Key West DW A 

FLA014773 Harbor Shores Mobile Home Park 6800 Maloney Ave. Key West DW A FLA014808 Looe Key Reef Resort MM 27, Overseas Highway Ramrod Key DW A FLA014816 Carlson Duplex (H) Narcissus Ave Big Pine Key DW A FLA014826 Coconut Grove Mobile Home Park 6621-4A Maloney Ave. Key West DW A FLA014827 Water’s Edge Colony Mobile Home Park 5700 Laurel St (at Second) Key West (Stock Is) DW A FLA014841 Sugarload Baptist Mission (HRS) Crane Boulevard Sugarloaf Key DW A FLA014843 Handte Duplex #3 (H) Lot 3, Block 19, Eden Pine Big Pine Key DW A FLA014844 Handte Duplex #9 (H) Lot 3, Block 9, Eden Pine Big Pine Key DW A FLA014845 Little Palm Island 28500 Overseas Highway Little Torch Key DW A FLA014867 Key Haven Utility Key Haven Road Key West DW A FLA014870 Breezy Pines Trailer Park US #1, Mile Post 29.8 Big Pine Key DW A FLA014872 Pearl Trailer Court (HRS) 25 3RD Street Key West DW A FLA014875 Sunshine Key Camping Resort Overseas Highway MM 38.7 Ohio Key DW A FLA014878 Lucky’s Landing 133 Barry Avenue Little Torch Key DW A FLA014889 Geiger Key Marina 5 Geiger Key Rd. Geiger Key DW A 
264 Water Quality Assessment Report: Florida Keys 

Facility ID Facility Name Address City Type1 Status2 

FLA014905 Coral Shrimp Co 4TH Street 4TH Street Stock Island IW N FLA014911 Old Barnett Bank of the Keys (H) MM 25, U. S. Highway 1, P. O. Box 1299 Summerland Key DW A FLA014914 Mangrove Mama’s Restaurant Overseas Highway @ MM 20 Sugarloaf Key DW A FLA014917 Seahorse Campground Route 5, Box 500 Big Pine Key DW A FLA014929 Montego Bay Food & Spirits Overseas Highway, MM 30.1 Big Pine Key DW A FLA014951 Key West Resort Utility 6630 Front St., Stock Island Key West DW A FLA014955 GMSB Inc MM 23.8, U. S. Highway 1 Summerland Key IW A FLA014957 Morgan Shrimp Packers, Inc. Shrimp Road–Stock Island Key West IW A FLA014971 Boyd’s Key West Campground 6401 Maloney Ave. Key West DW A FLA014973 Lady Alexander Condo Association, Inc. 1505 Sombrero Blvd. Marathon DW A FLA015013 Oceanside Marina 5950 Peninsula Ave. Key West DW A FLA015028 Big Pine Key Road Prison P. O. Box 509 Big Pine Key DW A FLA014702 Sugarloaf Elementary School Crane Blvd. Sugarloaf Key DW A FLA014800 Roy’s Trailer Park 6500 Maloney Ave. (Stock Is.) Key West DW A FLA014948 Seaside Resort 55 Boca Chica Road Big Coppitt Key DW A FLA014725 Lazy Lakes Campgrounds Johnson Road Upper Sugarloaf Key DW A FLA014859 Caribbean Village WWTP 1211 Overseas Highway Big Coppitt Key DW A FLA014980 Summerland Palms Trailer Park Overseas Highway, MM 24.9 Summerland Key DW A FLA014902 Bluewater Key RV Park U. S. Highway 1, Saddlebunch Key Saddlebunch Key DW A FLA014804 Big Pine Plaza Shopping Center S.R. S-940 and Wilder Road Big Pine Key DW A FLA017163 Peninsular Marine Enterprises 6000 Peninsula Ave. Key West DW A FLA014855 Key Deer Grill P. O. Box 322, Sands Subdivision Big Pine Key DW A FLA147117 Boca Chica Naval Air Station Naval Air Station Bldg. A827 Key West DW A FLA014821 Porpoise Point Reel & Racquet Club Jade Drive at U. S. Highway 1 Big Coppitt Key DW A FLA014982 Big Pine Motel Overseas Highway, MM 30.7 Big Pine Key DW A 
Water Quality Assessment Report: Flo

Facility ID Facility Name Address City Type1 Status2 

FLA015033 Bahia Honda State Park #4 36850 Overseas Highway Big Pine Key DW A FLA015031 Bahia Honda State Park #2 U. S. Highway 1, MM 37 Big Pine Key DW A FLA016204 Big Pine Key School Overseas Highway, MM 30.5 Big Pine Key DW A 

FLRNEE297 Manatee Bay Marine, Inc. 99 Morris Lane Key Largo NEX A 

FLA014893 Sugarloaf Lodge Overseas Highway, MM #17 Sugarloaf Key DW A FLA014946 Venture Out at Cudjoe Cay Spanish Main Drive Cudjoe Cay DW A FLA015032 Bahia Honda State Park Sand Spur 3 36850 Overseas Highway Big Pine Key DW A FLA014796 Sands Subdivision Affordable Housing P. O. Box 430391 Big Pine Key DW A FLA017381 KD’S Big Pine Steak & Seafood House Overseas Highway, MM 31 Big Pine Key DW A 

Notes: 1 Facility Type: 

DW = Domestic Waste IW = Industrial Waste UIC = Underground Injection Control NEX = Stormwater No Exposure Certification 2 Status: A = Active I = Inactive 3 NPDES (National Pollutant Discharge Elimination System): Y = Yes (surface water discharger) N = No (not a surface water discharger) 

* mgd = millions of gallons per day 
266 Water Quality Assessment Report: Florida Keys 

Table E.2: Permitted Landfill Facilities in the Florida Keys Basin, by Planning Unit 

Facility ID Facility Name Address City Status 

Upper Keys Planning Unit 

79483 Key Largo Dump (Old) State Road 905A Key Largo Inactive 79544 Key Largo Landfill State Road 905 Key Largo Inactive 

Middle Keys Planning Unit 

79548 Boot Key Landfill State Road 931 Boot Key Inactive 79484 Long Key Landfill U. S. Highway 1, Long Key, between Mile Marker 67 & 68 Long Key Active 

Lower Keys Planning Unit 

79482 Middle Torch Key Middle Torch Rd. Middle Torch Key Inactive 79636 Stock Island Landfill (Key West Landfill) Junior College Rd. Key West Active 79485 Cudjoe Key Landfill Cudjoe Key Rd., West of Mile Marker 21.5 Cudjoe Key Active 79597 Flemming Key SW Corner of Flemming Key Flemming Key Inactive 
Water Quality Assessment Report: Florida Keys 267

Appendix F: Level I Land Use in the Florida Keys Basin, by 

Planning Unit 

Table F.1: Level 1 2004 - 2005 Land Use in the Upper Keys Planning Unit 

Level 1 Type Percent of Basin 

1000 Urban and Built-up 2.22 

2000 Agriculture (includes improved pasture) 0.00 

3000 Rangeland 0.05 

4000 Upland Forest 1.40 

5000 Water2 88.44 

6000 Wetlands 7.70 

7000 Barren Land 0.03 

8000 Transportation, Communications, and Utilities 0.16 

Total 100 

Table F.2: Level 1 2004 -2005 Land Use in the Middle Keys Planning Unit 

Level 1 Type Percent of Basin 

1000 Urban and Built-up 1.58 

2000 Agriculture (includes improved pasture) 0.00 

3000 Rangeland 0.15 

4000 Upland Forest 0.23 

5000 Water 95.49 

6000 Wetlands 2.32 

7000 Barren Land 0.06 

8000 Transportation, Communications, and Utilities 0.17 

Total 100 

Table F.3: Level 1 2004 - 2005 Land Use in the Lower Keys Planning Unit 

Level 1 Type Percent of Basin 

1000 Urban and Built-up 2.90 

2000 Agriculture (includes improved pasture) 0.00 

3000 Rangeland 0.79 

4000 Upland Forest 0.59 

5000 Water 86.15 

6000 Wetlands 9.12 

7000 Barren Land 0.09 

8000 Transportation, Communications, and Utilities 0.35 

Total 99.99 
268 Water Quality Assessment Report: Florida Keys 

Appendix G: Documentation Provided during Public Comment 

Period 

Keys Basin 

Verified Listing Meeting 

Marathon, August 18, 2006 

Public Meeting Questions, Comments and Responses

Mike Zimmerman (Everglades National Park): Mr. Zimmerman asked if the water quality assessment for 

the Keys included Florida Bay. 

Response: Pat Fricano responded that it was supposed to but that a glitch in the GIS data layer had 

eliminated the Florida Bay stations and they didn’t get included in this assessment. Pat further 

indicated that the error would be corrected in the next assessment, prior to final adoption of the verified 

list. 

Mike Zimmerman (Everglades National Park): Mr. Zimmerman then asked if the water quality assessment 

for the Keys included the water quality stations in the embayments in and around the upper Keys, as 

there was a lot of water quality data being collected there. 

Response: Pat Fricano recounted that those water quality stations had also been eliminated by the glitch in 

the GIS data layer and that the error would be corrected in the next run of the IWR database. Pat 

further indicated that any nearshore stations, within 200 feet of the shoreline of any island WBID, were

included in this assessment for that particular island 

Ellen Alderman (Homeowner): “The bridge construction on US 1 is causing water quality degradation in 

Blackwater and Barnes Sounds.” 

Response: Pat Fricano asked what aspect of the bridge construction she thought was responsible for the 

degradation 

Ellen Alderman (Homeowner): Ms. Alderman said the pulling up of the mangroves, which was releasing 

nutrients into the water. This was exacerbated by the passing of Hurricane Wilma which made things 

worse by churning up the water. 

Response: Pat Fricano said they had to separate the man induced impacts from the hurricane impacts. 

“When Hurricane Charley passed through Lee and Charlotte Counties, DEP decided not to include or at 

least flag any water quality data that were entered into our database during that time period because 

hurricane water quality data were not truly reflective of ambient conditions. Hurricane induced 

impacts are an act of God and not subject to the influence of, or regulation by humankind.” 

Alex Score (World Wildlife Fund): Ms. Score made a statement that the local environmental groups 

wanted DOT to hold a public meeting to discuss the bridge construction issue and its affect on water 

quality. 

Nancy Perez (Homeowner): Ms. Perez stated that three times since 1983 major discharges by the C111 

canal created problems in Barnes Sound. “This time the C111 canal again, plus road construction 

impacts, plus hurricane Wilma broke the camel’s back”. 

Response: Pat Fricano stated that while driving in the Upper Keys last year, he noticed that the waters in 

and around US 1 were already green, exhibiting an obvious algae bloom, which occurred before the 

onset of bridge construction and the passing of Hurricane Wilma. 
Water Quality Assessment Report: Florida Keys 269

Alex Score (World Wildlife Fund): Ms. Score countered that yes, the water was green but it was clear 

green, not the green brown turbid water we are seeing today. 

Response: Pat Fricano stated that you cannot control turbidity churned up by hurricanes. 

Jon Fajans (Fla. Institute of Oceanography): Jon responded that we can address what we put on the ground 

for hurricanes to wash into the water, and that DOT was using slag as a road bed base in the bridge 

construction, which brings with it all kinds of contaminants. 

Mike Zimmerman (Everglades National Park): “The presence of sulfate in the water can facilitate the 

methylation of mercury into methyl mercury. Are you looking at sulfate as a cause of the mercury 

problem in fish tissue? Sulfate is being put on the agricultural fields as a fertilizer / soil amendment. 

Sulfur reducing bacteria causes the problem of mercury methylation and the presence of sulfur controls 

the chemical reaction.” 

Response: Nathan Bailey responded that we are not specifically monitoring or looking at sulfate. 

Mike Zimmerman (Everglades National Park): “Are you looking at the pesticide endosulfan and its 

metabolites”? 

Response: Pat Fricano responded that if endosulfan or any other pesticide data were in the database, we 

would compare the data to state water quality standards and denote any impairment. 

Jon Fajans (Fla. Institute of Oceanography): “Is the Department looking at arsenic? It gets into shellfish”. 

Response: Pat Fricano stated that if any “shellfish consumption advisory” is issued for arsenic, it would be 

considered an impairment of water quality. If any water column arsenic data exists in the database, we 

would compare the data to state water quality standards and denote any impairment. 
270 Water Quality Assessment Report: Florida Keys 

HT Pontin (Master Mariner): Asked a question as to why a specific dredge and fill permit was issued by 

the Department for some development activity. 

Response: Pat Fricano stated that the TMDL program is a different program from the dredge and fill 

program, and we have no knowledge of decisions made on individual dredge and fill permits. 

Response: Gus Rios told Mr. Pontin that he could get that information to him. He gave Mr. Pontin his 

business card and asked Mr. Pontin to give him a call. 

HT Pontin (Master Mariner): Mr. Pontin made a statement that the State of Florida has no sovereignty 

jurisdiction south of Long Key, as those islands and waters were never properly conveyed to Florida by 

the Spanish government. 

Response: Pat Fricano stated that state sovereignty land issues are not the subject of today’s meeting, and 

that he needed to take that matter up with the DEP Division of State Lands. 

END PUBLIC COMMENTS 
Florida Department of Environmental Protection 

Division of Environmental Assessment and Restoration

Bureau of Watershed Restoration

2600 Blair Stone Road, Mail Station 3565

Tallahassee, Florida 32399-2400

(850) 245-8561

www.dep.state.fl.us/water