Middle St. Johns - Florida Department of Environmental Protection

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326 Water Quality Assessment Report: Middle St. Johns Comments 3 WBID Waterbody Waterbody Waterbody 1998 303(d) Parameters Proposed Integrated Priority Projected ment 2 ment 2 Segment Name Type Class Parameters of Concern Identified Using the IWR Status Report Category 1 for TMDL Year for TMDL (# Exceedances/ # Samples) PP= Planning Period VP= Verified Develop- Develop- Period 2962 Smith Canal Stream 3F Iron Iron Verified List 5 Low 2008 PP - 0/1 values exceed criterion. VP - 7/22 values exceed criterion. 2962 Smith Canal Stream 3F Nutrients Nutrients (Chla) Not Impaired 2 Delist. PP - Insufficient data available to calculate an annual mean, 18 chla values, range of chla values 0 - 33 ug/L, mean chla 1.25 ug/L over entire period. VP - 0 chla annual means exceeded 20 ug/l (2001-2002), 17 chla values, range of chla values 0.44 - 19.4 ug/L, mean chla 5.57 ug/L over entire period. The annual mean chla concentrations for 2001 was 3.66 ug/l and for 2002 was 5.47 ug/l. 33 TN values, median 1.04 mg/l. 32 TP values, median 0.20 mg/l. 2962 Smith Canal Stream 3F Coliform Bacteria Total Coliform Bacteria Not Impaired 2 Delist. PP - 0/0 values exceed criterion. VP - 4/20 values exceed criterion. Range 240 - 4,900 colonies/100 ml. 2962 Smith Canal Stream 3F Turbidity Turbidity Insufficient 3c Turbidity is not impaired under IWR Data assessment, but need to confirm how data were assessed. 2962A East Twin Lake Lake 3F No Data 3a 2962B Ada Lake Lake 3F Nutrients (TSI) Not 2 Impaired 2962C Lake Minnie Lake 3F No Data 3a 2962D Lake Mary Lake 3F Nutrients (TSI) Not 2 Impaired 2962E Little Lake Mary Lake 3F Nutrients (TSI) Not 2 Impaired 2968 Unnamed Ditch Stream 3F No Data 3a 2969 Unnamed Ditch Stream 3F No Data 3a 2971 Unnamed Ditch Stream 3F No Data 3a 2972 Brisson Ave Ditch Stream 3F No Data 3a
Water Quality Assessment Report: Middle St. Johns 327 WBID Waterbody Segment Name 2973 DeForest Lake Outlet 2973 DeForest Lake Outlet Waterbody Type Waterbody Class 1998 303(d) Parameters of Concern Parameters Identified Using the IWR Proposed Status Stream 3F Copper Not Impaired Stream 3F Dissolved Oxygen Verified List Integrated Report Category 1 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 - 12/17 values below DO criterion. VP - 17/25 values below DO criterion. DO met verification threshold of IWR and BOD is causative pollutant (BOD median = 3.8 mg/L). 25 DO values, median 3.5 mg/L, mean 3.89 mg/L, range 1.46 - 7.1 mg/L. 2 2973 DeForest Lake Outlet Stream 3F Fecal Coliform Bacteria Not Impaired 2973 DeForest Lake Stream 3F Iron Planning 3c PP - 7/13 values exceed criterion. Outlet List VP - 7/15 values exceed criterion. 2973 DeForest Lake Stream 3F Lead Planning 3c PP - 3/3 values exceed criterion. VP Outlet List - 3/3 values exceed criterion. 2973 DeForest Lake Stream 3F Turbidity Not 2 Outlet Impaired 2973 DeForest Lake Stream 3F Zinc Not 2 Outlet Impaired 2973A Lake Emma Lake 3F No Data 3a 2973B West Crystal Lake Lake 3F Nutrients (TSI) Not 2 Impaired 2973C East Crystal Lake Lake 3F Dissolved Oxygen Not 2 Impaired 2973C East Crystal Lake Lake 3F Fecal Coliform Not 2 Bacteria Impaired 2973C East Crystal Lake Lake 3F Nutrients (TSI) Not 2 Impaired 2973C East Crystal Lake Lake 3F Turbidity Not 2 Impaired 2973C East Crystal Lake Lake 3F Zinc Not 2 Impaired 2973C1 East Crystal Lake Lake 3F No Data 3a Outlet 2973D Jennie Lake Lake 3F No Data 3a
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FLORIDA DEPARTMENT OF ENVIRONMENTAL
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Middle St. Johns - Florida Department of Environmental Protection

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