Manatee River Basin Setting
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FINAL BASIN MANAGEMENT ACTION PLAN for the Implementation of Total Maximum Daily Loads for Nutrients and Fecal Coliforms Adopted by the Florida Department of Environmental Protection in the Manatee River Basin developed by the Manatee River Basin Stakeholders in cooperation with the Division of Environmental Assessment and Restoration Bureau of Watershed Restoration Florida Department of Environmental Protection Tallahassee, FL 32399 April 2014 FINAL Manatee River Basin Management Action Plan – April 2014 Acknowledgments: The Manatee River Basin Management Action Plan was prepared as part of a statewide watershed management approach to restore and protect Florida’s water quality. It was developed by the Manatee River stakeholders, identified below, with participation from affected local, regional, and state governmental interests; elected officials and citizens; and private interests. MANATEE RIVER BASIN PARTICIPANTS ENTITY Manatee County Florida Department of Agriculture and Consumer Services Florida Department of Transportation Florida Power and Light City of Palmetto SMR Farms CSX Tampa Bay Regional Planning Council Southwest Florida Water Management District Tampa Bay Estuary Program Sierra Club The Mosaic Company Lakewood Ranch City of Bradenton CF Industries Schroeder-Manatee Ranch Braden River Utilities Florida Department of Health Page ii of xi FINAL Manatee River Basin Management Action Plan – April 2014 For additional information on Total Maximum Daily Loads and the watershed management approach in the Manatee River Basin, contact: Terry Hansen, P.G., Basin Coordinator 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 Email: [email protected] Phone: (850) 245–8561 Page iii of xi FINAL Manatee River Basin Management Action Plan – April 2014 TABLE OF CONTENTS LIST OF ACRONYMS AND ABBREVIATIONS ........................................................................... VIII EXECUTIVE SUMMARY ...................................................................................................................... X CHAPTER 1 : CONTEXT, PURPOSE, AND SCOPE OF THE PLAN .............................................1 1.1 Water Quality Standards and Total Maximum Daily Loads ............................................1 1.2 TMDL Implementation .........................................................................................................2 1.3 The Manatee River BMAP ....................................................................................................3 1.3.1 Stakeholder Involvement ..........................................................................................3 1.3.2 Plan Purpose and Scope ...........................................................................................3 1.3.3 Pollutant Reduction and Discharge Allocations .....................................................4 1.3.4 Manatee River Basin TMDLs ..................................................................................6 1.4 Assumptions and Considerations Regarding TMDL Implementation .............................6 1.4.1 Assumptions ..............................................................................................................7 1.4.2 Considerations ..........................................................................................................7 1.5 Future Growth in the Watershed .........................................................................................8 CHAPTER 2 : MANATEE RIVER BASIN SETTING ......................................................................10 2.1 Jurisdictions, Population, and Land Uses..........................................................................10 2.2 Physiography and Geology..................................................................................................10 2.3 Water Quality Trends..........................................................................................................14 2.3.1 WBID 1923 (Rattlesnake Slough) ..........................................................................14 2.3.2 WBID 1913 (Nonsense Creek) ...............................................................................17 2.4 WBIDs with Fecal Coliform TMDLs .................................................................................21 CHAPTER 3 : POLLUTANT SOURCES, ANTICIPATED OUTCOMES, AND MANAGEMENT ACTIONS ......................................................................................................29 3.1 Summary of Sources in the TMDLs ...................................................................................29 3.1.1 Point Source facilities .............................................................................................29 3.1.2 Municipal Separate Storm Sewer Systems ............................................................30 3.2 Anticipated Outcomes of BMAP Implementation ............................................................33 3.3 Management Actions ...........................................................................................................34 3.3.1 Types of Management Strategies ...........................................................................34 3.4 Addressing Agricultural Nonpoint Pollution ....................................................................35 3.4.1 Agricultural BMPs .................................................................................................35 3.4.2 FDACS’ OAWP Role in BMP Implementation and Follow-Up ..........................36 3.4.3 BMP Enrollment Goals and Load Reduction Estimates ......................................39 3.5 Funding Elements ................................................................................................................42 CHAPTER 4 : ASSESSING PROGRESS AND MAKING CHANGES ............................................43 4.1 Tracking Implementation ...................................................................................................43 4.2 Water Quality Monitoring ..................................................................................................44 4.2.1 Water Quality Monitoring Objectives ....................................................................44 Page iv of xi FINAL Manatee River Basin Management Action Plan – April 2014 4.2.2 Water Quality Indicators and Resource Responses ..............................................45 4.2.3 Monitoring Network ...............................................................................................46 4.2.4 Quality Assurance/Quality Control .......................................................................46 4.2.5 Data Management and Assessment .......................................................................48 4.3 Adaptive Management Measures .......................................................................................48 CHAPTER 5 : COMMITMENT TO PLAN IMPLEMENTATION ..................................................50 APPENDICES ..........................................................................................................................................51 Appendix A: TMDL Basin Rotation Schedule ...........................................................................52 Appendix B: Manatee River Basin Stakeholder Involvement in BMAP Development ..........53 Appendix C: Summary of EPA-Recommended Elements of a Comprehensive Watershed Plan .......................................................................................................54 Appendix D: Projects To Achieve the TMDLs ...........................................................................58 Appendix E: Glossary of Terms ...................................................................................................68 Appendix F: Potential Funding Sources .....................................................................................74 Appendix G: Water Quality Monitoring Stations in the Manatee River Basin ......................79 Appendix H: Bibliography of Key References and Websites ....................................................80 Page v of xi FINAL Manatee River Basin Management Action Plan – April 2014 LIST OF FIGURES Figure 1. Manatee River BMAP WBIDs .............................................................................................. 5 Figure 2. Land cover in the Manatee River BMAP area in 2009 ..................................................... 11 Figure 3. Manatee River Basin regional setting ................................................................................ 13 Figure 4. Annual geometric mean DO concentrations (top panel), and percentages of monthly DO observations falling below the 5.0 mg/L freshwater DO threshold (bottom panel) at Station TS1 in WBID 1923 (Rattlesnake Slough) ................................ 15 Figure 5. Annual geometric mean TN and TP concentrations (upper and lower panels, respectively) at Station TS1 in WBID 1923 (Rattlesnake Slough) .................................... 16 Figure 6. Annual geometric mean DO concentrations (top panel), and percentages of monthly DO observations falling below the 5.0 mg/L freshwater DO threshold (bottom panel) at Station TS7 in WBID 1913 (Nonsense Creek) ..................................... 19 Figure 7. Annual geometric mean TN and TP concentrations (upper and lower panels, respectively) at Station TS7 in WBID 1913 (Nonsense Creek) ........................................