Middle St. Johns - Florida Department of Environmental Protection

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18 Water Quality Assessment Report: Middle St. Johns Chapter 3: Surface Water Quality Assessment . . . . . . . . . . . . . . . . . 65 Scope of the Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Update on Strategic Monitoring and Data-Gathering Activities During Phase 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Sources of Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Attainment of Designated Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Integrated Report Categories and Assessment Overview . . . . . . . . . . . . . . . . 69 Planning Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Assessment by Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Alexander Springs Creek Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Deep Creek Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Econlockhatchee River Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Lake George Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Lake Jesup Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Lake Kerr Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Lake Monroe Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Lake Woodruff Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Water Quality Assessment Report: Middle St. Johns 19 Wekiva River Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Water Quality Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Permitted Discharges and Land Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Ecological Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Water Quality Improvement Plans and Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Chapter 4: The Verified List of Impaired Waters . . . . . . . . . . . . . . . 149 Public Participation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Identification of Impaired Waters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 The Verified List of Impaired Waters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Pollutant Causing Impairments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Adoption Process for the Verified List of Impaired Waters . . . . . . . . . . . . . . . . . . . . 180 Chapter 5: TMDL Development, Allocation, Implementation, and Monitoring Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181 Prioritization of Listed Waters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 Total Maximum Daily Load Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Total Maximum Daily Load Allocation and Implementation . . . . . . . . . . . . . 184 Initial Allocation of Pollutant Loadings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Implementation Programs and Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Development of Basin Management Action Plans . . . . . . . . . . . . . . . . . . . . . 186 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187 Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 Tables Table 1.1: Stakeholder Involvement in the TMDL Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Table 2.1: Population Statistics for the Counties and Major Cities in the Middle St. Johns Basin . . . 29 Table 2.2: Basinwide Land Use Breakouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Table 2.3: Acreage and Percentage of Basin Area of Natural Communities . . . . . . . . . . . . . . . . . . . 32 Table 2.4: Springs in the Middle St. Johns Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Table 2.5: Outstanding Florida Waters in the Middle St. Johns Basin . . . . . . . . . . . . . . . . . . . . . . . . 44 Table 2.6: Stratigraphy and Hydrostratigraphy of the Middle St. Johns River Basin . . . . . . . . . . . . . 46 Table 2.7: Freshwater Use in the Middle St. Johns Basin in 1999 (mgd) . . . . . . . . . . . . . . . . . . . . . 50 Table 2.8: Summary of Organizations Implementing Waterbody Restoration and Preservation Plans and Projects in the Middle St. Johns Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Table 3.1: Summary of Data Providers in the Middle St. Johns Basin . . . . . . . . . . . . . . . . . . . . . . . . 67 Table 3.2: Designated Use Attainment Categories for Surface Waters in Florida . . . . . . . . . . . . . . . 68 Table 3.3: Categories for Waterbodies or Waterbody Segments in the 2002 Integrated Report . . . . 70 Table 3.4: Planning Units in the Middle St. Johns Basin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Table 3.5: Integrated Water Quality Assessment Summary for the Alexander Springs Creek Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Table 3.6: Integrated Water Quality Assessment Summary for the Deep Creek Planning Unit . . . . . 80 Table 3.7: Integrated Water Quality Assessment Summary for the Econlockhatchee River Planning Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Table 3.8: Integrated Water Quality Assessment Summary for the Lake George Planning Unit . . . . . 99 Table 3.9: Integrated Water Quality Assessment Summary for the Lake Jesup Planning Unit . . . . . 105 Table 3.10: Integrated Water Quality Assessment Summary for the Lake Kerr Planning Unit . . . . . . .118 Table 3.11: Integrated Water Quality Assessment Summary for the Lake Monroe Planning Unit . . . 122 Table 3.12: Integrated Water Quality Assessment Summary for the Lake Woodruff Planning Unit . . 130 Table 3.13: Integrated Water Quality Assessment Summary for the Wekiva River Planning Unit . . . 136 Table 4.1: Schedule for Development and Adoption of the Group 2 Verified Lists . . . . . . . . . . . . . . 150
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Middle St. Johns - Florida Department of Environmental Protection

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