Middle St. Johns - Florida Department of Environmental Protection

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284 Water Quality Assessment Report: Middle St. Johns WBID Waterbody Segment Name 2893A1 St. Johns River Below Lake George 2893A1 St. Johns River Below Lake George 2893A2 St. Johns River Above Lake George 2893A2 St. Johns River Above Lake George 2893A2 St. Johns River Above Lake George 2893A2 St. Johns River Above Lake George 2893A2 St. Johns River Above Lake George 2893A3 Lake George Leftover Waterbody Type Waterbody Class 1998 303(d) Parameters of Concern Parameters Identified Using the IWR Stream 3F Un-Ionized Ammonia Proposed Status Not Impaired Stream 3F Zinc Not Impaired Stream 3F Dissolved Oxygen Verified List Stream 3F Fecal Coliform Bacteria Not Impaired Stream 3F Nutrients (Chla) Verified List Stream 3F Total Coliform Bacteria Not Impaired Stream 3F Turbidity Not Impaired Lake 3F Insufficient Data Integrated Report Category 1 2 2 Priority for TMDL Development 2 Projected Comments 3 Year for TMDL Development Period 2 (# Exceedances/ # Samples) PP= Planning Period VP= Verified 5 Medium 2008 PP - 37/112 values below DO criterion. VP - 21/73 values below DO criterion. DO met verification threshold of IWR and elevated algal biomass is causative pollutant. 200 DO values, median 5.68 mg/L, mean 5.69 mg/L, range 0.28 - 9.23 mg/L. 2 5 Medium 2008 Co-limitation of nitrogen and phosphorus based on a TN/TP median of 17 (120 values) in the PP and a median of 16 (80 values) in the VP. PP - 3 chla annual means exceeded 20 ug/l (1992, 1993, 1999), 123 TN values, median 1.19 mg/L, 124 TP values, median 0.07 mg/L. VP - 1 chla annual mean exceeded 20 ug/l (1999), 83 TN values, median 1.132 mg/L, 80 TP values, median 0.07 mg/L. 2 2 3b
Water Quality Assessment Report: Middle St. Johns 285 WBID Waterbody Segment Name Waterbody Type Waterbody Class 1998 303(d) Parameters of Concern Parameters Identified Using the IWR Proposed Status 2893W Lake Pierson Lake 3F No Data 3a 2895 Beecher Run Stream 3F No Data 3a 2895A Beecher Springs Stream 3F No Data 3a 2896 Clear Lake Lake 3F Nutrients (TSI) Not 2 Impaired 2896A Clear Lake Outlet Lake 3F No Data 3a 2897 Bell Lake Lake 3F No Data 3a 2897A Bell Lake Outlet Lake 3F No Data 3a 2898 Lake Laura Outlet Stream 3F No Data 3a 2898A Lake Laura Lake 3F No Data 3a 2901 Patty Wiggins Stream 3F No Data 3a Branch 2902 Lower Louise Lake Lake 3F Nutrients (TSI) Not 2 Impaired 2902A Lower Louise Lake Lake 3F No Data 3a Drain 2903 Unnamed Drain Stream 3F No Data 3a 2904 Price Creek Stream 3F No Data 3a 2914 Blue Creek Stream 3F No Data 3a 2916 Jumping Gulley Stream 3F No Data 3a Creek 2916A Crooked Lake Lake 3F Nutrients (TSI) Not Impaired 2 2916B Grasshopper Lake Lake 3F Mercury (in fish tissue) Verified List 2916B Grasshopper Lake Lake 3F Nutrients (TSI) Not Impaired Lake Jesup 2981 Lake Jesup Lake 3F Arsenic Not Impaired 2981 Lake Jesup Lake 3F Cadmium Not Impaired 2981 Lake Jesup Lake 3F Chromium3 Not Impaired Integrated Report Category 1 Priority for TMDL Development 2 Projected Comments 3 Year for TMDL Development Period 2 (# Exceedances/ # Samples) PP= Planning Period VP= Verified 5 Medium 2011 Mercury (in fish tissue) met verification threshold of IWR. Fish tissue levels in 20 samples averaged 1.55 ppm in 2000. 2 2 2 2
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FLORIDA DEPARTMENT OF ENVIRONMENTAL
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Middle St. Johns - Florida Department of Environmental Protection

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