62-304.810. Everglades West Coast Basin TMDLs  


Effective on Tuesday, October 21, 2008
  • 1(1) Estero Bay Planning Unit.

    6(a) Hendry Creek Marine TMDLs.

    111. Hendry Creek Marine TMDL for Fecal Coliform. The Total Maximum Daily Load is 400 counts/100 ml and is allocated as follows:

    33a. The Wasteload Allocation (WLA) for wastewater point sources is not applicable,

    45b. The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 57.4 percent reduction at sources contributing to exceedances of the criteria,

    107c. The Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 57.4 percent reduction at sources contributing to exceedances of the criteria,

    158d. The Margin of Safety is implicit, and

    166e. While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class III criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream fecal concentration. However, it is not the intent of the TMDL to abate natural background conditions.

    2272. Hendry Creek Marine Dissolved Oxygen TMDL. The Total Maximum Daily Loads to address the low dissolved oxygen condition is an annual median Total Nitrogen (TN) of 0.6 mg/L in Hendry Creek Marine, and is allocated as follows:

    265a. The WLA for wastewater point sources is not applicable,

    275b. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 44 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period,

    309c. The LA for nonpoint sources is a 44 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period, and

    336d. The Margin of Safety is implicit.

    343(b) Hendry Creek TMDLs. Hendry Creek Dissolved Oxygen TMDL. The Total Maximum Daily Load to address the low dissolved oxygen condition is an annual median TN of 0.6 mg/L in Hendry Creek, and is allocated as follows:

    3801. The WLA for wastewater point sources is not applicable,

    3902. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 44 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period,

    4243. The LA for nonpoint sources is a 44 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period, and

    4514. The Margin of Safety is implicit.

    458(c) Imperial River TMDLs. The Imperial River Dissolved Oxygen TMDL. The Total Maximum Daily Loads to address the low dissolved oxygen condition is an annual median total nitrogen of 0.74 mg/L in the Imperial River, and is allocated as follows:

    4981. The WLA for wastewater point sources is not applicable,

    5082. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 24.9 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period,

    5423. The LA for nonpoint sources is a 24.9 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period, and

    5694. The Margin of Safety is implicit.

    576(2) Southwest Coast Planning Unit.

    581(a) The Cocohatchee River TMDLs. The Cocohatchee River Fecal Coliform TMDL. The Total Maximum Daily Load is 43 counts/100 ml and is allocated as follows:

    6061. The WLA for wastewater point sources is not applicable,

    6162. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 65 percent reduction at sources contributing to exceedances of the criteria,

    6733. The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 65 percent reduction at sources contributing to exceedances of the criteria,

    7224. The Margin of Safety is implicit, and

    7305. While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class II criteria, the combined reductions from both anthropogenic point and nonpoint sources will result in the required reduction of in-stream fecal concentration. However, it is not the intent of the TMDL to abate natural background conditions.

    788(b) The Gordon River Extension TMDLs. The Gordon River Extension Dissolved Oxygen TMDL. The Total Maximum Daily Loads to address the low dissolved oxygen condition is an annual median TN of 0.74 mg/L in the Gordon River Extension, and is allocated as follows:

    8311. The WLA for wastewater point sources is not applicable,

    8412. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 29 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period,

    8753. The LA for nonpoint sources is a 29 percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period, and

    9024. The Margin of Safety is implicit.

    909(c) Lake Trafford TMDLs.

    9131. The Lake Trafford Dissolved Oxygen TMDL. The Total Maximum Daily Load for Lake Trafford is based on achieving the Class 3 minimum dissolved oxygen criterion of 5.0 mg/L, and is allocated as follows:

    947a. The WLA for wastewater point sources is not applicable,

    957b. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 60 percent reduction of current anthropogenic TN loading, and a 77 percent reduction of current anthropogenic total phosphorus (TP) loading based on measured concentrations from the 2000 to 2007 period,

    1003c. The LA for nonpoint sources is a 60 percent reduction of current anthropogenic TN loading, and a 77 percent reduction of current anthropogenic TP loading based on measured concentrations from the 2000 to 2007 period, and

    1040d. The Margin of Safety is implicit.

    10472. The Lake Trafford Nutrient TMDL. The Lake Trafford nutrient TMDL is based on meeting a maximum Trophic State Index (TSI) of 60, and is allocated as follows:

    1075a. The WLA for wastewater point sources is not applicable,

    1085b. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 60 percent reduction of current anthropogenic TN loading, and a 77 percent reduction of current anthropogenic TP loading based on measured concentrations from the 2000 to 2007 period,

    1129c. The LA for nonpoint sources is a 60 percent reduction of current anthropogenic TN loading, and a 77 percent reduction of current anthropogenic TP loading based on measured concentrations from the 2000 to 2007 period, and

    1166d. The Margin of Safety is implicit.

    11733. The Lake Trafford Un-ionized Ammonia TMDL. The Lake Trafford un-ionized ammonia TMDL is based on meeting a maximum concentration of 0.02 mg/L, and is allocated as follows:

    1201a. The WLA for wastewater point sources is not applicable,

    1211b. The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is a 60 percent reduction of current anthropogenic TN loading, based on measured concentrations from the 2000 to 2007 period,

    1245c. The LA for nonpoint sources is a 60 percent reduction of current anthropogenic TN loading, based on measured concentrations from the 2000 to 2007 period, and

    1272d. The Margin of Safety is implicit.

    1279Rulemaking Authority 1281403.061, 1282403.067 FS. 1284Law Implemented 1286403.061, 1287403.062, 1288403.067 FS. 1290History–New 10-21-08.

     

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