The purpose of the rulemaking is to to streamline and otherwise cleanup various provisions in Chapter 62-304, F.A.C. For instance, duplicative text in individual Total Maximum Daily Loads (TMDLs) will be consolidated in ....

 

DEPARTMENT OF ENVIRONMENTAL PROTECTION

RULE NOS: RULE TITLES:

62-304.100Scope and Intent

62-304.300St. Marks Basin TMDLs

62-304.305Ochlockonee Basin TMDLs

62-304.310Apalachicola River Basin TMDLs

62-304.315Chipola River Basin TMDLs

62-304.325Choctawhatchee River Basin TMDLs

62-304.330Pensacola Bay Basin TMDLs

62-304.335Perdido Bay Basin TMDLs

62-304.400Upper Suwannee River Basin TMDLs

62-304.405Lower Suwannee River Basin TMDLs

62-304.406Aucilla River Basin TMDLs

62-304.410Santa Fe River Basin TMDLs

62-304.415Lower St. Johns River Basin TMDLs

62-304.425Nassau Basin TMDLs

62-304.435Upper East Coast Basin TMDLs

62-304.500Ocklawaha River Basin TMDLs

62-304.505Middle St. Johns River Basin TMDLs

62-304.506Wekiva Springs Study Area TMDLs

62-304.510Upper St. Johns River TMDLs

62-304.515Kissimmee River Basin TMDLs.

62-304.520Indian River Lagoon Basin TMDLs

62-304.600Tampa Bay Basin TMDLs

62-304.605Alafia River TMDLs

62-304.610Hillsborough River Basin TMDLs

62-304.615Manatee River Basin TMDLs

62-304.620Little Manatee River Basin TMDLs

62-304.625Peace River Basin TMDLs

62-304.640Withlacoochee Basin TMDLs

62-304.645Springs Coast Basin TMDLs

62-304.700Total Maximum Daily Loads in the Southeast Florida District

62-304.705St. Lucie Basin TMDLs

62-304.710Loxahatchee Basin TMDLs

62-304.715Lake Worth Lagoon basin TMDLs

62-304.725Southeast Coast Basin TMDLs

62-304.726Pompano Canal TMDL

62-304.735Everglades Basin TMDLs

62-304.800Caloosahatchee River Basin TMDLs

62-304.805Charlotte Harbor Basin TMDLs

62-304.810Everglades West Coast Basin TMDLs

62-304.900Statewide TMDLs

PURPOSE AND EFFECT: The purpose of the rulemaking is to to streamline and otherwise cleanup various provisions in Chapter 62-304, F.A.C. For instance, duplicative text in individual Total Maximum Daily Loads (TMDLs) will be consolidated in one location in the rule chapter. These revisions will not substantively change any adopted TMDLs or their allocations in the rule chapter. The department also is proposing to delete several total coliform TMDLs that still remain in four rule sections (rules 62-304.415, .500, .505, and .610). The total coliform criteria were removed from state water quality standards 14 years ago and have been replaced with superior bacteriological indicators.

SUMMARY:  The department is proposing revisions to Chapter 62-304, F.A.C., which contains state adopted TMDLs. These revisons primarily entail editorial changes to the rule, which are intended to improve the clarity of the rule.  The following changes will add clarity and make the overall rule more concise without changing the underlying TMDLs: (1) Removal of definitions from individual rule sections and moving these definitions to section 62.304.100, F.A.C.; (2) Adding text clarifying that the margin of safety is implicit to section 62.304.100, F.A.C., unless otherwise stated and removing this text from each individual rule section; (3) Adding text stating that TMDLs are not designed to abate natural background conditions to section 62.304.100, F.A.C., and removing this text from individual rule sections; (4) Providing clarifications regarding implementation of aggregated allocations and stormwater reductions; and, (5) Clarifying that the attainment of a TMDL is determined using the same assessment procedures as determining attainment of water quality criteria.

The department also is proposing to remove all total coliform TMDLs from the rule to reflect changes in Florida’s water quality standards. Specifically, the change is being made because 1) the total coliform criteria were withdrawn from Rule 62-302.530, F.A.C., in 2006 because the measure was shown to be an unreliable indicator of human pathogens, and 2) Florida adopted EPA’s fecal indicator water quality criteria for enterococci and E. coli. criteria in 2015. The newer fecal indictor criteria were developed based on the latest scientific research, including studies that showed a stronger link, then the previous criteria, between illness and fecal contamination in recreational waters. This rulemaking has been given an OGC case number 20-1619. 

SUMMARY OF STATEMENT OF ESTIMATED REGULATORY COSTS: The Agency has determined that this will not have an adverse impact on small business or likely increase directly or indirectly regulatory costs in excess of $200,000 in the aggregate within one year after the implementation of the rule.  A SERC has not been prepared by the agency. 

Pursuant to paragraph 403.067(6)(c), Florida Statutes, the proposed rules do not require legislative ratification.

Any person who wishes to provide information regarding a statement of estimated regulatory costs, or provide a proposal for a lower cost regulatory alternative must do so in writing within 21 days of this notice.

RULEMAKING AUTHORITY: 403.061, 403.067 FS.

LAW IMPLEMENTED: 403.061, 403.062, 403.067 FS.

IF REQUESTED WITHIN 21 DAYS OF THE DATE OF THIS NOTICE, A HEARING WILL BE SCHEDULED AND ANNOUNCED IN THE FAR.

THE PERSON TO BE CONTACTED REGARDING THE PROPOSED RULE IS: Ken Weaver, Division of Environmental Assessment and Restoration, Water Quality Evaluation and TMDL Program, Mail Station 3555, Florida Department of Environmental Protection, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400, telephone [phone]. 

 

THE FULL TEXT OF THE PROPOSED RULE IS:

 

 

62-304.100 Scope and Intent.

(1) This chapter establishes Total Maximum Daily Loads (TMDLs), and their allocations, for waters that have been verified to be impaired by a pollutant pursuant to Cchapter 62-303, F.A.C.

(2) The following abbreviations shall apply throughout this chapter: “TMDL” is Total Maximum Daily Load; “WLA” is Wasteload Allocation; “LA” is Load Allocation; “TN” is Total Nitrogen; “TP” is Total Phosphorus; “DO” is Dissolved Oxygen; “BOD” is Biochemical Oxygen Demand; “CBOD” is Carbonaceous Biochemical Oxygen Demand; “AGM” is Annual Geometric Mean; “NPDES” is National Pollutant Discharge Elimination System; “MS4” is Municipal Separate Storm Sewer System; and “Department” is Florida Department of Environmental Protection.

(3)(2) The rule sections in this This chapter are organized according to Florida’s geographic regions. is organized in parts, with parts III through VIII listing adopted TMDLs for waters within each of the six Department district offices. This organization is designed to assist the public in finding specific TMDLs. This organization also tracks the Department’s watershed management approach, in which the Department has assigned all of the State’s basins to a specific Department district office. Some basin boundaries overlap more than one geographic region district office and readers are encouraged to check rule sections in for adjacent geographic regions Districts if they cannot find a TMDL for a given water body.

(4) Unless a TMDL contains an explicitly quantified margin of safety, the margin of safety is implicit for all TMDLs adopted in this chapter.

(5) TMDLs and their wasteload and load allocations are not self-implementing. Implementation of TMDLs and their allocations is conducted through other regulatory programs and the requirements of those programs. Load reductions required of individual sources may be adjusted through these other programs as long as the reductions are consistent with achieving the overall allocations set forth in the TMDL. Aggregated allocations for a category of sources are not intended to be applied uniformly to individual sources in that category, unless otherwise specified.

(6) Stormwater reductions are included in both the MS4 WLA and LA, as applicable. However, in determining the overall stormwater reductions needed, the Department does not differentiate between the MS4 WLA and the LA, and instead applies the same overall reductions to both as if the two categories were a single category source, unless otherwise specified. 

(7) Pollutant reductions to attain a TMDL can come from many sources. The Department’s primary focus is obtaining reductions from the anthropogenic causes. It is not the intent of any of the TMDLs listed in this chapter to abate natural background conditions.

(8) Where a TMDL is expressed as a load with a duration other than daily, the daily load shall equal the identified load divided by the number of days in the expressed duration. Where a TMDL is expressed as a concentration, the daily load shall equal the expressed concentration multiplied by the daily average flow over the period of record. These daily expressions are for informational purposes only.

(9) Attainment of a TMDL is determined using the same assessment methodology as determining attainment of water quality criteria.

(10) A nutrient TMDL shall not constitute a site specific numeric interpretations of the narrative nutrient criterion pursuant to paragraph 62-302.531(2)(a), F.A.C., unless the notice of proposed rulemaking states that the Department intends for the proposed TMDL rule to establish such a site specific interpretation for the waterbody, and the Department has held a public meeting and asked for public comment during the rulemaking process.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 12-22-04, Amended _____.

 

NORTHWEST FLORIDA TMDLs

 

62-304.300 St. Marks River Basin TMDLs.

(1) Munson Slough Above Lake Munson. The bacteriological TMDL Total Maximum Daily Load (TMDL) for Munson Slough is 400 counts/100mL for fecal coliform, and is allocated as follows:

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

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2006 period, will require a 31.6 % percent reduction at sources contributing to exceedances of the criteria at Roberts Ave., and for the 2006 period, will require a 96.9 % percent reduction at sources contributing to exceedances of the criteria at Springhill Road, and for the 1992 to 2007 period, will require a 91.5 % percent reduction at sources contributing to exceedances of the criteria at Capital Circle S.W.; and

(c) The LA 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 2006 period, will require a 31.6 % percent reduction at sources contributing to exceedances of the criteria at Roberts Ave., and for the 2006 period, will require a 96.9 % percent reduction at sources contributing to exceedances of the criteria at Springhill Road, and for the 1992 to 2007 period, will require a 91.5 % percent reduction at sources contributing to exceedances of the criteria at Capital Circle S.W.

(d)The Margin of Safety is implicit.

(e) 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.

(2) Upper Wakulla River. The nitrate-nitrite TMDL to address the biological impairment is an in-stream monthly mean concentration of 0.35 mg/L and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which, based on the mean concentrations from the 2002-2007 period, will require a 56.2 % percent reduction of nitrate-nitrite at sources contributing to the observed biological impairment.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for nitrate have been expressed as the concentration and percent reduction needed to attain the applicable Class III biology criterion, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream nitrate concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(3) Munson Slough Above Lake Munson. The DO dissolved oxygen TMDLs are BOD 5-day biological oxygen demand (BOD5) of 2.00 mg/L, TN total nitrogen (TN) of 0.72 mg/L, and TP total phosphorus (TP) of 0.15 mg/L and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and TMDL concentrations, which, based on the median concentrations from the 1973-2007 period, will require a 50 % percent reduction for BOD BOD5, an 8.35 % percent reduction for TN, and a 17.53 % percent reduction for TP at sources contributing to exceedances of the criterion and TMDLs; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and the TMDL concentrations, which, based on the median concentrations from the 1973-2007 period, will require a 50 % percent reduction for BOD5, an 8.35 % percent reduction for TN, and a 17.53 % percent reduction for TP at sources contributing to exceedances of the criterion and TMDLs.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for BOD5, TN, and TP have been expressed as the concentrations and 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 BOD5, TN, and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(4) Lake Munson. The turbidity TMDL is 31 Nephelometric turbidity units (NTUs) and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-lake concentrations meet the TMDL concentration, which, based on the median concentrations from the 1986-2007 period, will require a 31.9 % percent reduction at sources contributing to exceedances; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-lake concentrations meet the TMDL concentration, which, based on the median concentrations from the 1986-2007 period, will require a 31.9 % percent reduction at sources contributing to exceedances of the TMDL.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for turbidity have been expressed as the concentration and percent reduction needed to attain the applicable Class III criterion, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-lake turbidity concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(5) Lake Munson. The DO dissolved oxygen and nutrient [Trophic State Index (TSI)] TMDLs are in-lake concentrations for BOD BOD5 of 2.00 mg/L, TN of 0.765 mg/L, and TP of 0.044 mg/L and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-lake concentrations meet the DO dissolved oxygen criterion and the nutrient TMDL concentrations, which, based on the mean concentrations from the 2004-2008 period, will require a 50 % percent reduction for BOD BOD5, a 32.5 % percent reduction for TN, and a 76.7 % percent reduction for TP at sources contributing to exceedances; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-lake concentrations meet the DO dissolved oxygen criterion and the TMDL concentrations, which, based on the mean concentrations from the 2004-2008 period, will require a 50 % percent reduction for BOD BOD5, a 32.5 % percent reduction for TN, and a 76.7 % percent reduction for TP at sources contributing to exceedances of the DO dissolved oxygen criterion and BOD BOD5 and nutrients TMDL concentrations.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for BOD5, TN and TP have been expressed as the concentrations and 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-lake BOD5, TN, and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(6) Munson Slough Below Lake Munson. The DO dissolved oxygen TMDL is an in-stream concentration for BOD BOD5 of 2.00 mg/L and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and BOD BOD5 TMDL concentration, which, based on the mean concentration from the period 1986-2007, will require a 52.9 % percent reduction for BOD BOD5 at sources contributing to exceedances; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and the BOD TMDL BOD5TMDL concentration, which, based on the mean concentrations from the 1986-2007 period, will require a 52.9 % percent reduction for BOD BOD5 at sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for BOD5 have been expressed as the concentration and percent reduction needed to attain the applicable Class III dissolved oxygen criterion, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream BOD5 concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(7) Munson Slough Below Lake Munson. The un-ionized ammonia impairment is addressed by reductions in total ammonia. The total ammonia TMDL is an in-stream concentration of 0.32 mg/L and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream un-ionized ammonia concentrations meet the water quality criterion, which, based on the mean concentration from the period 1971-2007, will require a 33.3 % percent reduction of total ammonia at sources contributing to exceedances; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream un-ionized ammonia concentrations meet the water quality criterion, which, based on the mean concentrations from the 1971-2007 period, will require a 33.3 % percent reduction of total ammonia at sources contributing to exceedances.

(d) The Margin of Safety is implicit.

(e) While the WLA and LAs for total ammonia have been expressed as the concentration and percent reduction needed to attain the applicable Class III un-ionized ammonia criterion, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream un-ionized ammonia concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 10-21-08, Amended 3-22-12, 6-7-13, _____.

 

62-304.305 Ochlockonee River Basin TMDLs.

(1) Telogia Creek Planning Unit. Juniper Creek TMDLs.

(1)(a) Juniper Creek TMDL for Dissolved Oxygen. The DO TMDL Total Maximum Daily Load for Juniper Creek is based on achieving the Class 3 fresh water minimum DO dissolved oxygen criterion of 5.0 mg/L, and is allocated as follows:

(a)1. The WLA Wasteload Allocation (WLA) for discharges subject to the Department’s NPDES MS4 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 TN total nitrogen (TN) criteria which, based on the measured concentrations from the 1979 to 2006 period, will require a 18.18 % percent reduction at sources contributing to exceedances of the criteria, and

(b)2. The Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the total nitrogen (TN) criteria which, based on the measured concentrations from the 1979 to 2006 period, will require a 18.18 percent reduction at sources contributing to exceedances of the criteria.; and,

3. The Margin of Safety is implicit,

4. While the LA and WLA for dissolved oxygen has been expressed as the percent reduction needed to attain the applicable Class III criteria, it is not the intent of the TMDL to abate natural background conditions.

(2)(b) Juniper Creek TMDL for Fecal Coliform. The bacteriological TMDL Total Maximum Daily Load for Juniper Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 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 1992 to 2007 period, will require a 48.1 % percent reduction at sources contributing to exceedances of the criteria, and

(b)2. The LA Load Allocation 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 1992 to 2007 period, will require a 48.1 % percent reduction at sources contributing to exceedances of the criteria.; and,

3. The Margin of Safety is implicit,

4. 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.

(3)(2) South Ochlockonee River Planning Unit. Black Creek TMDLs. The bacteriological TMDL Total Maximum Daily Load for the freshwater segment of Black Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, there currently are no NPDES point sources located in Black Creek;

(b) The LA Load Allocation 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 1992 to 2007 period, will require a 39.6 % percent reduction at sources contributing to exceedances of the criteria.; and,

(c) The Margin of Safety is implicit;

(d) 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.

(4)(3) North Ochlockonee River Planning Unit. Swamp Creek TMDLs. The bacteriological TMDL Total Maximum Daily Load for Swamp Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1992 to 2007 period, will require a 69.2 % percent reduction at sources contributing to exceedances of the criteria; and

(b) The LA Load Allocation 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 1992 to 2007 period, will require a 69.2 % percent reduction at sources contributing to exceedances of the criteria.; and,

(c) The Margin of Safety is implicit;

(d) 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.

(5)(4) Lake Tallavana. The nutrient TMDL Total Maximum Daily Load (TMDL) for Lake Tallavana is a seven-year average of annual loads of 11,757 kilograms per year (kg/year) TN and 785 kg/year TP which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Ddepartment’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is not applicable; and,

(c) The LA Load Allocation (LA) for nonpoint sources is a 25% reduction of TN and an 83% reduction of TP based on average loads from the 2002-2012 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 10-21-08, Amended 5-17-18, _____.

 

62-304.310 Apalachicola River Basin TMDLs.

(1) Huckleberry Creek. The bacteriological TMDL Total Maximum Daily Load (TMDL) for Huckleberry Creek is a median of 6.85 x 109 colonies/day for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System (NPDES) Permitting Program is to meet the Class III water quality criteria for fecal coliform in chapter 62-302, F.A.C.; and

(b) The LA Load Allocation (LA) for nonpoint sources is a median of 6.85 x 109 colonies/day for fecal coliform, which constitutes a 68.33 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(2) Flat Creek. The bacteriological fecal coliform TMDL for Flat Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the NPDES MS4 Municipal Stormwater Permitting Program, to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria, is not applicable; and

(c) 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 January 2007 to December 2007 period, will require a 38 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(3) Little Gully Creek. The TMDLs to address the low DO dissolved oxygen and nutrient impairments are an 11.3 % percent reduction in both TN total nitrogen (TN) and TP total phosphorus (TP) and are allocated as follows:

(a) The WLA for point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program, to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, is not applicable; and

(c) The LA for nonpoint sources is an 11.3 % percent reduction in current anthropogenic loadings of both TN and TP.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for nutrients has been expressed as the percent reductions needed to attain the applicable Class III criteria, it is the reductions from anthropogenic nonpoint sources that will result in the required reduction of nutrients. However, it is not the intent of the TMDL to abate natural background conditions.

(4) Sweetwater Creek. The bacteriological fecal coliform TMDL for Sweetwater Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program, to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria, is not applicable; and

(c) 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 January 2007 to December 2007 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-22-05, Amended 10-15-09, _____.

 

62-304.315 Chipola River Basin TMDLs.

(1) Otter Creek. The bacteriological TMDL fecal coliform total maximum daily load (TMDL) for Otter Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA Waste load Allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is not applicable; and

(c) The LA 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 2001 to 2008 period, will require a 35 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(2) Jackson Blue Spring and Merritts Mill Pond. The nitrate-nitrite TMDL is an in-stream monthly mean concentration of 0.35 mg/L and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is not applicable; and.

(c) The LA Load Allocations for nonpoint sources is are to address anthropogenic sources in the basin such that in-stream nitrate-nitirite concentrations meet the TMDL target, which, based on the mean concentrations from the 2000-2011 period, will require a 90 % percent reduction of nitrate-nitrite.

(d) The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 10-15-09, Amended 5-7-13, _____.

 

62-304.325 Choctawhatchee River Basin TMDLs.

(1) Choctawhatchee River. The bacteriological TMDL fecal coliform Total Maximum Daily Load (TMDL) for the Choctawhatchee River from the state line to Wrights Creek is an annual median of 4.913 x 1013 colonies/day, and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for wastewater point sources is for each facility to meet its permit limits for fecal coliform;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is not applicable; and

(c) The LA 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 average measured concentrations for the year the Secretary adopted the verified list that first listed the waterbody as impaired for fecal coliform, will require a 60 % percent reduction of in-stream fecal coliform concentrations.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(2) Alligator Creek. The bacteriological TMDL for Alligator Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2002 to 2009 period, will require a 94 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for fecal coliform has been expressed as the percent reduction 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.

(3) Camp Branch. The bacteriological TMDL for Camp Branch is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources must meet the facility’s permit condition. The WLA is granted to the City of Bonifay Wastewater Treatment Facility (WWTF);

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2002 to 2009 period, will require an 88 percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(4) Minnow Creek. The bacteriological TMDL for Minnow Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2002 to 2009 period, will require an 81 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for fecal coliform has been expressed as the percent reduction 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.

(5) Minnow Creek. The DO dissolved oxygen TMDLs for Minnow Creek are 21,310 lbs/year of TN and 3,195 lbs/year of TP, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion, which, based on the average of the calculated loadings from the 2003 – 2008 period, will require a 30 % percent reduction of TN and 31 % percent reduction of TP at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LAs for TN and TP 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 TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(6) Sikes Creek. The bacteriological TMDL for Sikes Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2002 to 2009 period, will require a 48 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for fecal coliform has been expressed as the percent reduction 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.

(7) Sikes Creek. The DO dissolved oxygen TMDL for Sikes Creek is 21,819 lbs/year of TN, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion, which, based on the average of the calculated loadings from the 2004-2008 period, will require a 24 % percent reduction of TN at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for TN has 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 TN concentration. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 8-3-06, Amended 8-26-10, 10-12-10, _____.

 

62-304.330 Pensacola Bay Basin TMDLs.

(1) Fecal Coliform TMDL for Bayou Chico, Jones Creek, Jackson Creek, Bayou Chico Beach and Sanders Beach. The bacteriological TMDL for Bayou Chico, Jones Creek, Jackson Creek, Bayou Chico Beach and Sanders Beach Total Maximum Daily Load is 400 counts/100 ml for fecal coliform and is allocated as follows:

(a) A WLA Wasteload Allocation (WLA) for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1998 to 2005 period, will require a 61 % percent reduction at sources contributing to exceedances of the criteria; and.

(c) 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 1998 to 2005 period, will require a 61 % percent reduction at sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(2) The Blackwater River (Tidal). Fecal Coliform TMDL. The bacteriological TMDL fecal coliform Total Maximum Daily Load for the Blackwater River (Tidal) is 400 counts/100 mL, for fecal coliform, and is allocated as follows:

(a) The WLA for the Milton Wastewater Treatment Facility (Permit Number FL0021903) is that the facility must meet its permit limits for fecal coliform;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2011 period, will require a 7 % percent reduction at sources contributing to exceedances of the criteria; and

(c) 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 2003 to 2011 period, will require a 7 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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 coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(3) The East Bay River (Marine Portion). Fecal Coliform TMDL. The bacteriological TMDL for the East Bay River (Marine Portion) is 43 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2011 period, will require a 92 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2003 to 2011 period, will require a 92 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class II 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.

(4) The Escambia River. Fecal Coliform TMDL. The bacteriological TMDL for the Escambia River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2011 period, will require a 5 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2003 to 2011 period, will require a 5 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(5) Texar Bayou. Fecal Coliform TMDL. The bacteriological TMDL for Texar Bayou is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2011 period, will require a 49 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2003 to 2011 period, will require a 49 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(6) Carpenter Creek. Fecal Coliform TMDL. The bacteriological TMDL for Carpenter Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2006 and 2012, will require a 28 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2006 and 2012, will require a 28 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(7) Turkey Creek. Fecal Coliform TMDL. The bacteriological TMDL for Turkey Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2006, 2007, and 2009, will require a 73 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA 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.

(8) Yellow River. Fecal Coliform TMDL. The bacteriological TMDL for the Yellow River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2011 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2003 to 2011 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(9) Judges Bayou (freshwater). The DO TMDL for the freshwater sections of Judges Bayou is a 74 % percent reduction in TN total nitrogen (TN) to address a dissolved oxygen impairment, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on reference stream concentrations for the 2003-2010 period, will require a 74 % percent reduction of TN for sources contributing to the DO dissolved oxygen impairment; and,

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on reference stream concentrations from the 2003 to 2010 period, will require a 74 percent reduction of TN for sources contributing to the dissolved oxygen impairment.

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN has been expressed as the percent reductions needed to attain the applicable Class III dissolved oxygen criterion, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream TN concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(10) North Escambia Bay and Judges Bayou (marine). The TP total phosphorus (TP) TMDL for the Pensacola Bay estuary required to restore the marine sections of North Escambia Bay and Judges Bayou is 601,345 lbs/year, a 35% percent reduction in TP from the 2002-2009 period to address nutrient impairments. The existing TN total nitrogen (TN) loading to the Pensacola Bay estuary is 16,795,853 lbs/year, and no reduction is required. The TMDL is allocated as follows:

(a) The WLA for wastewater point sources discharging to the lower Escambia River and areas adjacent to the impaired waters is divided between GulfPower Company (NPDES permit FL0002275), Pace Water System, Inc. (NPDES permit FL0102202), and Ascend Performance Materials LLC (NPDES permit FL0002488). The allocation to GulfPower Company for TP is 2,852 lbs/year and 21,392 lbs/year for TN. The allocation to Pace Water System, Inc. for TP is 3,852 lbs/year and 32,052 lbs/year for TN. The allocation to Ascend Performance Materials, LLC for TP is 5,147 lbs/year 73,171 lbs/yr for TN;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentration meet the TP and TN targets which, based on modeled concentration for the 2002-2009 period, will require a 35 % percent reduction of TP and a 0 (zero) % percent reduction in TN for sources contributing to the nutrient impairment; and,

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on modeled concentrations from the 2002 to 2009 period, will require a 35 % percent reduction of TP and a 0 (zero) % percent reduction in TN for sources contributing to the nutrient impairment.;

(d) The Margin of Safety is implicit.

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

(d)(f) The Department will establish the detailed allocation for sources in paragraphs (b) and (c), above, pursuant to Section 403.067(6)(a), F.S.

(11) Bayou Chico (marine). The TMDL for the marine sections of Bayou Chico is a 30 % percent reduction in TN total nitrogen (TN) and a 30 % percent reduction for TP total phosphorus (TP) to address a nutrient impairment, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on modeled concentrations for the “2002-2009 period,”; and will require a 30 % percent reduction of both TN and TP for sources contributing to the nutrient impairment; and,

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on modeled concentrations from the 2002 to 2009 period, will require a 30 % percent reduction of both TN and TP for sources contributing to the nutrient impairment.;

(d) The Margin of Safety is implicit.

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

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended 11-14-12, 2-27-13, 6-7-13, _____.

 

62-304.335 Perdido Bay Basin TMDLs.

(1) Fecal Coliform TMDL for Elevenmile Creek (US 90). The bacteriological TMDL Total Maximum Daily Load is 400 counts/100 ml fecal coliform and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for wastewater point sources subject to the Department’s NPDES National Pollutant Discharge Elimination System (NPDES) Permitting Program is to meet the Class III water quality criteria for fecal coliform in chapter 62-302, F.A.C.;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1972 to 2006 period, will require a 63 % percent reduction at sources contributing to exceedances of the criteria; and

(c) The LA 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 1972 to 2006 period, will require a 63 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit;

(e) 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.

(2) Fecal Coliform TMDL for Elevenmile Creek (State Road 297A). The bacteriological TMDL Total Maximum Daily Load is 400 counts/100 ml for fecal coliform and is allocated as follows:

(a) The WLA for wastewater point sources subject to the Department’s NPDES National Pollutant Discharge Elimination System Permitting Program is to meet the Class III water quality criteria for fecal coliform in chapter 62-302, F.A.C.;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1972 to 2006 period, will require a 66 % percent reduction at sources contributing to exceedances of the criteria; and

(c) 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 1972 to 2006 period, will require a 66 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit;

(e) 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.

(3) Fecal Coliform TMDL for Tenmile Creek. The bacteriological TMDL Total Maximum Daily Load for Fecal Coliforms for Tenmile Creek is 400 counts/100 ml for fecal coliform and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1972 to 2006 period, will require a 43 % percent reduction at sources contributing to exceedances of the criteria; and

(c) 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 1972 to 2006 period, will require a 43 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit;

(e) 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.

(4) Fecal Coliform TMDL for Brushy Creek. The bacteriological TMDL for Brushy Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2004 to 2011 period, will require a 64 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for fecal coliform has been expressed as the percent reductions needed to attain the applicable Class III criteria, it is the combined reductions from all anthropogenic 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended 11-14-12, _____.

 

NORTHEAST FLORIDA TMDLs

 

62-304.400 Upper Suwannee River Basin TMDLs.

(1) Upper Suwannee River Basin Fecal Coliform TMDLs. Total Maximum Daily Loads (TMDLs). For each Class III surface water of the state in the Upper Suwannee River Basin verified as impaired for fecal coliform, the TMDL is 400 counts/100 mL fecal coliform and shall be allocated as follows:

(2) The WLA Wasteload Allocation (WLA) for the NPDES National Pollutant Discharge Elimination System (NPDES) wastewater point sources is not applicable;

(3) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is not applicable; and

(4) The LA Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that the in-waterbody concentrations meet the 400 counts/100 mL fecal coliform criterion.; and,

(5) The Margin of Safety is implicit.

(6) While the LA for fecal coliform is expressed as the in-waterbody concentration needed to attain the applicable Class III criteria, it is the combined reductions from all anthropogenic sources that will result in the required reduction of in-waterbody fecal coliform concentration. It is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 9-14-14, Amended _____.

 

62-304.405 Lower Suwannee River Basin TMDLs.

(1) Lower Suwannee River Basin Fecal Coliform TMDLs. Total Maximum Daily Loads (TMDLs).  For each Class III surface water of the state in the Lower Suwannee River Basin verified as impaired for fecal coliform, the TMDL is 400 counts/100 mL fecal coliform and shall be allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for the NPDES National Pollutant Discharge Elimination System (NPDES) wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is not applicable; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that the in-waterbody concentrations meet the 400 counts/100 mL fecal coliform criterion.; and,

(d) The Margin of Safety is implicit.

(e) While the LA for fecal coliform is expressed as the in-waterbody concentration needed to attain the applicable Class III criteria, it is the combined reductions from all anthropogenic sources that will result in the required reduction of in-waterbody fecal coliform concentration. It is not the intent of the TMDL to abate natural background conditions.

(2) Suwannee River (downstream of the confluence with the Withlacoochee River). Middle Suwannee Planning Unit. The TMDLs for the Suwannee River (downstream of the confluence with the Withlacoochee River) are to achieve 0.35 mg/L nitrate-nitrite for the discharge from Suwannee River, and are allocated as follows:

(a) Suwannee River (downstream of the confluence with the Withlacoochee River).

The Total Maximum Daily Loads for the Suwannee River are to achieve 0.35 mg/L nitrate-N for the discharge from Suwannee River, and are allocated as follows:

(a)1. The WLA Wasteload Allocation (WLA) for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater (NPDES) Permitting Program is not applicable; and,

(c)3. The LA Load Allocation (LA) for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The range of percent reduction necessary to achieve the LA is estimated between 0 and 51 % percent depending on the month and location within the basin. Achievement of the TMDL constitutes achievement of a percent reduction.; and,

4. The Margin of Safety is implicit.

(3)(b) Branford Springs. The TMDL for Branford Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Branford Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 61 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(4)(c) Falmouth Springs. The TMDL for Falmouth Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Falmouth Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 62 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(5)(d) Royal Springs. The TMDL for Royal Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Royal Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 74 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(6)(e) Ruth Springs. The TMDL for Ruth Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Ruth Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 92 % percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(7)(f) Troy Springs. The TMDL for Troy Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Troy Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 81 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(3) Lower Suwannee Planning Unit.

(8)(a) Fanning Springs. The TMDL for Fanning Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Fanning Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 92 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(9)(b) Manatee Springs. The TMDL for Manatee Springs is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Manatee Springs is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable.,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The percent reduction is an estimated 79 %. percent. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

(10)(c) Lower Suwannee Estuary. The TMDL for Lower Suwannee Estuary is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, and is allocated as follows:

The Total Maximum Daily Load for Lower Suwannee Estuary is to achieve a monthly average of 0.35 mg/L nitrate-N, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The range of percent reduction necessary to achieve the LA is estimated between 30 and 58 % percent depending on the month and location within the basin. Achievement of the TMDL constitutes meeting the water quality target.; and,

4. The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 12-3-03, Amended 11-16-08, 9-14-14, _____.

 

62-304.406 Aucilla River Basin TMDLs.

(1) Wacissa River. The nutrient TMDL Total Maximum Daily Load (TMDL) for the Wacissa River is an in-stream monthly arithmetic mean concentration of 0.20 mg/L nitrate-nitrite, nitrate, and is allocated as follows:

(a) The WLA wasteload allocation (WLA) for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permitting Program is a 39% reduction of nitrate-nitrite based on average concentrations from the 2005-2015 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 39% reduction of nitrate-nitrite based on average loads from the 2005-2015 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for nitrate has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(2) Wacissa Springs. The nutrient TMDL for Wacissa Springs is a monthly arithmetic mean of 0.24 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 38% reduction of nitrate-nitrite based on average concentrations from the 2005-2015 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 38% reduction of nitrate-nitrite based on average loads from the 2005-2015 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for nitrate has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 5-30-17, Amended _____.

 

62-304.410 Santa Fe River Basin TMDLs.

(1) Santa Fe River TMDLs. Santa Fe River TMDL for nutrient and dissolved oxygen impairments: The TMDL Total Maximum Daily Load for nutrients in the Santa Fe River (below river rise) is to achieve a monthly average of 0.35 mg/L nitrate-nitrite, nitrate-N, and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is are to meet a monthly average in-stream ambient water quality target of 0.35 mg/L nitrate-nitrite. nitrate-N. The range of percent reduction necessary to achieve the LA is estimated between 13 and 35 % percent depending on the month and location within the basin. Achievement of the TMDL constitutes meeting the water quality target; and

(c) The LA Load Allocations (LA) for nonpoint sources is are to meet a monthly average of 0.35 mg/L nitrate-nitrite. nitrate-N. The range of percent reduction necessary to achieve the LA is estimated between 13 and 35 % percent depending on the month and location within the basin. Achievement of the TMDL constitutes meeting the water quality target.; and,

(d) The Margin of Safety is implicit.

(2) New River TMDLs.

(2)(a) New River TMDL. for fecal coliform impairment. The bacteriological TMDL Total Maximum Daily Load for New River 400 counts/100mL for fecal coliform, and is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. 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 1995 to 2007 period, will require a 45 % percent reduction at sources contributing to exceedances of the criteria.; and,

4. The Margin of Safety is implicit.

5. While the LA for fecal coliform has been expressed as the percent reductions needed to attain the applicable Class III criteria, it is not the intent of the TMDL to abate natural background conditions.

(3)(b) New River TMDL. for dissolved oxygen impairment. The DO TMDL Total Maximum Daily Load for the New River is allocated as follows:

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and,

(c)3. The LA for nonpoint sources is to address anthropogenic sources in the basin such that there is a 38 % percent reduction of current anthropogenic TN total nitrogen (TN) loading to the upper portion of the New River, a 13 % percent reduction of current anthropogenic TN total nitrogen (TN) loading to the lower portion of the New River, and a 38 % percent reduction of current anthropogenic TP total phosphorus (TP) loading to the lower portion of the New River, based on measured concentrations from the 1995 to 2006 period.

(4)(3) Alligator Lake TMDLs. Alligator Lake TMDL for nutrient and dissolved oxygen impairments. The nutrient and DO TMDL for nutrients in Alligator Lake is 42,595 pounds/year of TN total nitrogen (a 28.4 % percent reduction) and 3,050 pounds/year of TP total phosphorus (a 61.2 % percent reduction) and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) The LAs for nonpoint sources are 42,595 pounds/year of TN total nitrogen and 3,050 pounds/year TP. total phosphorus; and,

(d) The Margin of safety is implicit.

(5)(4) Santa Fe River Basin Fecal Coliform TMDLs. For each Class III surface water of the state in the Santa Fe River Basin verified as impaired for fecal coliform, the TMDL is 400 counts/100 mL fecal coliform and shall be allocated as follows:

(a) The WLA for NPDES wastewater point sources is established by their NPDES permit conditions included to attain the fecal coliform criteria;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is to address anthropogenic sources in the basin such that the in-waterbody concentrations meet the 400 counts/100 mL fecal coliform criterion; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that the in-waterbody concentrations meet the 400 counts/100 mL fecal coliform criterion.; and,

(d) The Margin of Safety is implicit.

(e) While the WLA and LA for fecal coliform are expressed as the in-waterbody concentrations needed to attain the applicable Class III criteria, it is the combined reductions from both anthropogenic point and anthropogenic nonpoint sources that will result in the required reduction of in-waterbody fecal coliform concentration. It is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 11-16-08, Amended 12-7-08, 9-14-14, _____.

 

62-304.415 Lower St. Johns River Basin TMDLs.

Lower St. Johns River.

(1) Lower St. Johns River (freshwater segments from Buffalo Bluff to Black Creek). The TMDL Total Maximum Daily Load for the freshwater segments of the Lower St. Johns River, which is that portion of the river from Buffalo Bluff to Black Creek, is 500,325 kilograms per year (kg/y) of TP Total Phosphorus (TP) and 8,571,563 kg/y of TN, Total Nitrogen (TN), and is allocated as follows:

(a) The WLA Wasteload Allocation for point sources discharging to the freshwater portion of the river is 46,357 kg/y of TP and 236,695 kg/y of TN; and

(b) The LA Load Allocation for nonpoint sources is 453,968 kg/y of TP and 8,334,868 kg/y of TN.; and,

(c) The Margin of Safety is implicit.

(2) Lower St. Johns River (marine segments). The TMDL Total Maximum Daily Load for the marine segments of the Lower St. Johns River, which is that portion of the river from Black Creek to the mouth, is 1,376,855 kilograms per year (kg/y) of TN Total Nitrogen (TN), and is allocated as follows:

(a) The WLA Wasteload Allocation for point sources discharging to the marine portion of the river is 1,027,590 kg/y of TN; and

(b) The LA Load Allocation for nonpoint sources discharging to the marine portion of the river is 349,265 kg/y of TN.; and,

(c) The Margin of Safety is implicit.

(3) Durbin Creek. The bacteriological TMDL Total Maximum Daily Load for Durbin Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 63 % percent reduction of current anthropogenic fecal coliform loading; and

(b) The LA Load Allocation for nonpoint sources is a 63 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(4) Goodbys Creek. The bacteriological TMDL Total Maximum Daily Load for Goodbys Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 87 % percent reduction of current anthropogenic fecal coliform loading; and

(b) The LA Load Allocation for nonpoint sources is an 87 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(5) Hogan Creek. The bacteriological TMDL Total Maximum Daily Load for Hogan Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 92 % percent reduction of current anthropogenic fecal coliform loading; and

(b) The LA Load Allocation for nonpoint sources is a 92 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(6) Miramar Creek. The bacteriological TMDL Total Maximum Daily Load for Miramar Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 92 % percent reduction of current anthropogenic fecal coliform loading; and

(b) The LA Load Allocation for nonpoint sources is a 92 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(7) Butcher Pen Creek. The bacteriological TMDL Total Maximum Daily Load for Butcher Pen Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to meet the applicable water quality criteria for fecal coliforms;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 83 % percent reduction of current anthropogenic fecal coliform loading; and

(c) The LA Load Allocation for nonpoint sources is an 83 % percent reduction of current fecal coliform loading.; and,

(d) The Margin of Safety is implicit.

(8) Cedar River. The bacteriological TMDL Total Maximum Daily Load for the Cedar River is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 83 % percent reduction of current anthropogenic fecal coliform loading; and an 81 percent reduction of current anthropogenic total coliform loading;

(b) The LA Load Allocation for nonpoint sources is an 83 % percent reduction of current fecal coliform loading; and an 81 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(9) Williamson Creek. The bacteriological TMDL Total Maximum Daily Load for Williamson Creek is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 83 % percent reduction of current anthropogenic fecal coliform loading; and a 66 percent reduction of current anthropogenic total coliform loading;

(b) The LA Load Allocation for nonpoint sources is an 83 % percent reduction of current fecal coliform loading. and a 66 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(10) Wills Branch. The bacteriological TMDL Total Maximum Daily Load for Wills Branch is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 80 % percent reduction of current anthropogenic fecal coliform loading; and an 81 percent reduction of current anthropogenic total coliform loading;

(b) The LA Load Allocation for nonpoint sources is an 80 % percent reduction of current fecal coliform loading. and an 81 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(11) Moncrief Creek. The bacteriological TMDL Total Maximum Daily Load for Moncrief Creek is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 83 % percent reduction of current anthropogenic fecal coliform loading; and a 98 percent reduction of current anthropogenic total coliform loading;

(b) The LA Load Allocation for nonpoint sources is an 83 % percent reduction of current fecal coliform loading. and a 98 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(12) Ribault River. The bacteriological TMDL Total Maximum Daily Load for the Ribault River is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Permitting Program is to meet the applicable water quality criteria for fecal coliforms;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 50 % percent reduction of current anthropogenic fecal coliform loading; and

(c) The LA Load Allocation for nonpoint sources is a 50 % percent reduction of current fecal coliform loading.; and,

(d) The Margin of Safety is implicit.

(13) Big Davis Creek. The bacteriological TMDL Total Maximum Daily Load (TMDL) for Big Davis Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for discharges subject to the Department’s NPDES MS4 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 1995 to 2007 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria; and

(b) The LA 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 1995 to 2007 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(14) Big Fishweir Creek. The bacteriological TMDL for Big Fishweir Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1996 to 2008 period, will require a 87 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1996 to 2008 period, will require a 87 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(15) Block House Creek. The bacteriological TMDL for Block House Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1991 to 2006 period, will require a 82 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1991 to 2006 period, will require a 82 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(16) Deep Bottom Creek. The bacteriological TMDL for Deep Bottom Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1999 to 2007 period, will require a 82 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1999 to 2007 period, will require a 82 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(17) Deer Creek. The bacteriological TMDL for Deer Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1995 to 2007 period, will require a 86 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1995 to 2007 period, will require a 86 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(18) McCoy Creek. The bacteriological TMDL for McCoy Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1995 to 2007 period, will require a 84 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1995 to 2007 period, will require a 84 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(19) Miller Creek. The bacteriological TMDL for Miller Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1991 to 2007 period, will require a 92 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1991 to 2007 period, will require a 92 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(20) New Castle Creek. The bacteriological TMDL for New Castle Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1991 to 2006 period, will require a 84 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1991 to 2006 period, will require a 84 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(21) Open Creek. The bacteriological TMDL for Open Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1996 to 2007 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1996 to 2007 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(22) Sherman Creek. The bacteriological TMDL for Sherman Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1996 to 2008 period, will require a 71 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1996 to 2008 period, will require a 71 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(23) Terrapin Creek. The bacteriological TMDL for Terrapin Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1995 to 2007 period, will require a 71 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1995 to 2007 period, will require a 71 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(24) Trout River, freshwater segment. The bacteriological TMDL for the freshwater segment of Trout River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1996 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1996 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(25) Trout River, marine segment. The bacteriological TMDL for the marine segment of Trout River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 1996 to 2007 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria; and

(b) 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 1996 to 2007 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit; and,

(d) 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.

(26) Arlington River. The TMDL for Arlington River is a 30 % percent reduction in TN total nitrogen (TN) to address a nutrient impairment, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1973 to 2008 period, will require a 30 % percent reduction of TN for sources contributing to the nutrient impairment; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1973 to 2008 period, will require a 30 % percent reduction of TN for sources contributing to the nutrient impairment.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reduction for TN identified in this TMDL is established to be consistent with the TMDLs for TN identified in subsections (1) and (2) of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(27) Black Creek. The TMDL for Black Creek is a lead concentration of 0.545 ug/L and is allocated as follows:

(a) The WLA for wastewater facilities discharging lead is that they shall not exceed the lead criterion;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 73.2 % percent reduction from sources contributing to exceedances of the lead criterion; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 73.2 % percent reduction from sources contributing to exceedances of the lead criterion.;

(d) The Margin of Safety is implicit; and,

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

(28) Black Creek – South Fork. The TMDL for the Black Creek – South Fork is a lead concentration of 0.545 ug/L and is allocated as follows:

(a) The WLA for wastewater point sources discharging lead is that they shall not exceed the lead criterion;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 76.8 % percent reduction from sources contributing to exceedances of the lead criterion; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 76.8 % percent reduction from sources contributing to exceedances of the lead criterion.;

(d) The Margin of Safety is implicit; and,

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

(29) Doctors Lake. The TMDL for Doctors Lake is a 50 % percent reduction in TN to address the nutrient impairment, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN which, based on the measured concentrations from the 1971 to 2008 period, will require a 50 % percent reduction of TN for sources contributing to exceedances of the nutrient criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1971 to 2008 period, will require a 50 % percent reduction of TN for sources contributing to exceedances of the nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reduction for TN identified in this TMDL is established to be consistent with the TMDLs for TN identified in subsections (1) and (2), of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(30) Dog Branch. The TMDLs for Dog Branch are a 30 % percent reduction in TN and a 30 % percent reduction in TP total phosphorus (TP) to address low DO Dissolved Oxygen (DO) and nutrient impairments, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1985 to 2008 period, will require a 30 % percent reduction in TN and a 30 % percent reduction in TP from sources contributing to exceedances of the DO and nutrient criteria; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1985 to 2008 period, will require a 30 % percent reduction of TN and a 30 % percent reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reductions for TN and TP identified in this TMDL are established to be consistent with the TMDLs for TN and TP identified in subsections (1) and (2), as applicable, of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(31) Greene Creek. The bacteriological TMDL for Greene Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2002 to 2008 period, will require a 45 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2002 to 2008 period, will require a 45 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform has 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.

(32) Grog Branch. The bacteriological TMDL for Grog Branch is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(33) Julington Creek. The bacteriological TMDL for Julington Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(34) Little Black Creek. The bacteriological TMDL for Little Black Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Ridaught Landing Wastewater Treatment Facility is that it must meet its NPDES permit conditions;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 27 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 27 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(35) Middle Trout River. The TMDLs for Middle Trout River are a 30 % percent reduction in TN and a 70 % percent reduction in TP to address the DO and nutrient impairments, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1967 to 2008 period, will require a 30 % percent reduction of TN and a 70 % percent reduction of TP from sources contributing to exceedances of the DO and nutrient criteria; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1967 to 2008 period, will require a 30 % percent reduction of TN and a 70 % percent reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reduction for TN identified in this TMDL is established to be consistent with the TMDLs for TN identified in subsections (1) and (2), of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(36) Mill Creek. The bacteriological TMDL for Mill Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2002 to 2008 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2002 to 2008 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(37) Mill Creek. The TMDLs for Mill Creek are a 30 % percent reduction in TN and a 30 % percent reduction in TP to address the DO and nutrient impairments, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1992 to 2008 period, will require a 30 % percent reduction of TN and a 30 % percent reduction of TP from sources contributing to exceedances of the DO and nutrient criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1992 to 2008 period, will require a 30 % percent reduction of TN and a 30 % percent reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reductions for TN and TP identified in this TMDL are established to be consistent with the TMDLs for TN and TP identified in subsections (1) and (2), as applicable, of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(38) Ortega River. The bacteriological TMDL for Ortega River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(39) Ortega River. The TMDL for Ortega River is a 30 % percent reduction in TN to address the DO and nutrient impairments, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1967 to 2008 period, will require a 30 % percent reduction of TN from sources contributing to exceedances of the DO and nutrient criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1967 to 2008 period, will require a 30 % percent reduction of TN from sources contributing to exceedances of the DO and nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reduction for TN identified in this TMDL is established to be consistent with the TMDLs for TN identified in subsections (1) and (2) of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(40) Peters Creek. The bacteriological TMDL for Peters Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2007 period, will require a 41 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2007 period, will require a 41 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(41) Peters Creek. The TMDL for Peters Creek is a lead concentration of 0.545 ug/L and is allocated as follows:

(a) The WLA for wastewater point sources discharging lead is that they shall not exceed the lead criterion;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 80 % percent reduction from sources contributing to exceedances of the lead criterion; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the lead criterion which, based on the measured concentrations from the 2001 to 2008 period, will require a 80 % percent reduction from sources contributing to exceedances of the lead criterion.;

(d) The Margin of Safety is implicit; and,

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

(42) Pottsburg Creek. The bacteriological TMDL for Pottsburg Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 50 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 50 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(43) Sixteen Mile Creek. The TMDLs for Sixteen Mile Creek are a 30 % percent reduction in TN and a 30 % percent reduction in TP to address the DO impairment, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN total nitrogen and TP total phosphorus targets which, based on the measured concentrations from the 1987 to 2008 period, will require a 30 % percent reduction of TN and a 30 % percent reduction of TP from sources contributing to exceedances of the DO criteria; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the TN and TP targets which, based on the measured concentrations from the 1987 to 2008 period, will require a 30 % percent reduction of TN and a 30 % percent reduction of TP from sources contributing to exceedances of the DO criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reductions for TN and TP identified in this TMDL are established to be consistent with the TMDLs for TN and TP identified in subsections (1) and (2), as applicable, of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(44) Strawberry Creek. The bacteriological TMDL for Strawberry Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(45) Swimming Pen Creek. The TMDL for Swimming Pen Creek is a 30 % percent reduction in TN to address the DO and nutrient impairments, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1973 to 2008 period, will require a 30 % percent reduction of TN from sources contributing to exceedances of the DO and nutrient criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the TN target which, based on the measured concentrations from the 1973 to 2008 period, will require a 30 % percent reduction of TN from sources contributing to exceedances of the DO and nutrient criteria.;

(d) The Margin of Safety is implicit;

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

(d)(f) The percent reduction for TN identified in this TMDL is established to be consistent with the TMDLs for TN identified in subsections (1) and (2) of this rule. The required reductions are not additive to the extent they are protective of this waterbody and the mainstem of the Lower St. John’s River.

(46) Cormorant Branch. The bacteriological TMDL for Cormorant Branch is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 73 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 73 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(47) Craig Creek. The bacteriological TMDL for Craig Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require an 87 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require an 87 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(48) Fishing Creek. The bacteriological TMDL for Fishing Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources must meet the facility’s permit condition. The WLA is granted to Jacksonville Heights Wastewater Reclamation Facility;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(49) Greenfield Creek. The bacteriological TMDL for Greenfield Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 70 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 70 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(50) Hopkins Creek. The bacteriological TMDL for Hopkins Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(51) Crescent Lake. The nutrient TMDL for Crescent Lake is a seven-year average of annual loads of 462,059 kilograms per year (kg/year) TN and 26,289 kg/year TP, which are intended to achieve AGM annual geometric mean chlorophyll a concentration of 15 µg/L not to be exceeded more than one in any three-calendar year period, and is allocated as follows:

(a) The WLA for the City of Bunnell Wastewater Treatment Facility is 5,761 kg/year for TN and 318 kg/year for TP. The WLA for Crescent City Wastewater Treatment Facility is that it must meet the facility’s NPDES permit conditions;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is a 34% reduction of TN and a 58% reduction of TP based on average concentrations from the 2000-2013 period;

(c) The LA Load Allocation (LA) for nonpoint sources is a 34% reduction of TN and a 58% reduction of TP based on average loads from the 2000-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 12-3-03, Amended 5-15-06, 6-3-08, 7-27-09, 11-2-09, 7-21-10, 5-30-17, _____.

 

62-304.425 Nassau River Basin TMDLs.

(1) Unnamed Branch. Fecal Coliform TMDL. The bacteriological TMDL fecal coliform Total Maximum Daily Load for Unnamed Branch is 400 counts/100 mL, for fecal coliform and is allocated as follows:

(2)(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 2003 to 2004 period, will require a 46% reduction at sources contributing to exceedances of the criteria; and

(3)(b) The LA Load Allocation 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 2003 to 2004 period, will require a 46% reduction at sources contributing to exceedances of the criteria.; and,

(c) The Margin of Safety is implicit.

(2) While the LA and WLA for fecal coliform have been expressed as the percent reduction 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 coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.031, 403.061, 403.062, 403.067 FS. History–New 5-1-07, Amended _____.

 

62-304.435 Upper East Coast Basin TMDLs.

(1) Spruce Creek (Freshwater Segment). The bacteriological TMDL Total Maximum Daily Load for the freshwater segment of Spruce Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation (WLA) for discharges subject to the Department’s NPDES MS4 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 1997 to 2005 period, will require a 53 % percent reduction at sources contributing to exceedances of the criteria; and

(b) The LA 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 1997 to 2005 period, will require a 53 % percent reduction at sources contributing to exceedances of the criteria.;

(c) The Margin of Safety is implicit;

(d) 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.

(2) Spruce Creek (Marine Segment). The TMDL Total Maximum Daily Load for the marine segment of Spruce Creek is based on achieving the Class 3 marine minimum DO dissolved oxygen criterion of 4.0 mg/L, and is allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 25 % percent reduction of current anthropogenic BOD 5 day biochemical oxygen demand (BOD5) loading, and a 27 percent reduction of current anthropogenic TP total phosphorus (TP) loading based on measured concentrations from the 1992 to 2005 period; and

(b) The LA for nonpoint sources is a 25 % percent reduction of current anthropogenic BOD 5 day biochemical oxygen demand (BOD5) loading, and a 27 % percent reduction of current anthropogenic TP total phosphorus (TP) loading based on measured concentrations from the 1992 to 2005 period.;

(c) The Margin of Safety is implicit.

(3) Fecal Coliform TMDL for Pellicer Creek. The bacteriological TMDL for Pellicer Creek is 43 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) 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 2004, 2005, and 2009, will require a 94 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA for fecal coliform has been expressed as the percent reductions needed to attain the applicable Class II criteria, it is the combined reductions from all anthropogenic 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.

(4) Tomoka River (Fresh Water Segment). The TMDL to address the nutrient impairment in the freshwater segment of Tomoka River is an annual average TN total nitrogen (TN) and TP total phosphorus (TP) concentration of 0.78 mg/L and 0.065 mg/L, respectively, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program (MS4) is a 30 % percent reduction of current anthropogenic TN loading, and a 30 % percent reduction of current anthropogenic TP loading based on measured concentrations from the 1992 to 2011 period; and

(c) The LA for nonpoint sources is a 30 % percent reduction of current anthropogenic TN and TP loadings based on measured concentrations from the 1992 to 2011 period.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TN and TP 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 TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(5) Halifax River (Northern Segment). The TMDL to address the nutrient impairment in the northern segment of Halifax River is an annual average TN total nitrogen (TN) and TP total phosphorus (TP) concentration of 1.13 mg/L and 0.185 mg/L, respectively, and is allocated as follows:

(a) The WLA for the Ormond Beach Wastewater Treatment Facility (WWTF) is 109,666 lbs TN/yr and 18,278 lbs TP/yr. The WLA for the Holly Hill WWTF is 21,933 lbs TN/yr and 7,311 lbs TP/yr. The WLA for the Daytona Beach/Bethune Point WWTF is 182,777 lbs TN/yr and 60,926 lbs TP/yr;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program (MS4) is a 9 percent reduction of current anthropogenic TN loading based on measured concentrations from the 1995 to 2010 period; and

(c) The LA for nonpoint sources is a 9 % percent reduction of current anthropogenic TN loading, based on measured concentrations from the 1995 to 2010 period.;

(d) The Margin of Safety is implicit; and,

(e) While the WLA and LA for TN has been expressed as the pounds allowed and 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 TN concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(6) South Matanzas River (from the City of Palm Coast to the northern portions of Flagler Beach). The TMDL to address the nutrient impairment in the South Matanzas River from the City of Palm Coast to the northern portions of Flagler Beach is an annual TN total nitrogen (TN) and TP total phosphorus (TP) load of 807,418 lbs TN/yr and 86,685 lbs TP/yr, and is allocated as follows:

(a) The WLA for the Palm Coast WWTF#1 is 111,190 lbs TN/yr and 30,466 lbs TP/yr. The WLA for the Palm Coast WWTF #2 facility is WLA is 6,483 lbs TN/yr and 1,625 lbs TP/yr. The WLA for Beverly Beach WWTF is 4,606 lbs TN/yr and 503 lbs TP/yr. The WLA for the Dunes CDD-Reverse Osmosis Concentrate facility is 1,531 lbs TN/yr and 323 lbs TP/yr;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program (MS4) is a 29 % percent reduction of current anthropogenic TN and TP loadings based on measured concentrations from the 1997 to 2009 period; and

(c) The LA for nonpoint sources is a 29 % percent reduction of current anthropogenic TN and TP loadings based on measured concentrations from the 1997 to 2009 period.;

(d) The Margin of Safety is implicit; and,

(e) While the WLA and LA for TN and TP have been expressed as the pounds allowed and 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 TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended 11-14-12, 8-18-13, _____.

 

CENTRAL FLORIDA TMDLs

 

62-304.500 Ocklawaha River Basin TMDLs.

(1) Hatchet Creek. The Iron TMDL for Hatchet Creek is 35.91 pounds per day and is allocated as follows:

(a) The Total Maximum Daily Load for Iron for Hatchet Creek is 35.91 pounds per day and is allocated as follows:

(a)1. The WLA Wasteload Allocation for point sources discharging wastewater to Hatchet Creek is 5.6 pounds per day and for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 30.8 % percent reduction in current Iron loading; and,

(b)2. The LA Load Allocation for nonpoint sources is a 30.8 % percent reduction in current Iron loading.; and,

3. The Margin of Safety is implicit.

(b) The Total Maximum Daily Load for Total Coliforms for Hatchet Creek is a 62 percent reduction in Total Coliform loading and is allocated as follows:

1. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 62 percent reduction in current loading,

2. The Load Allocation for nonpoint sources is a 62 percent reduction in current loading; and,

3. The Margin of Safety is implicit.

(2) Hogtown Creek. The bacteriological TMDL Total Maximum Daily Load for Fecal Coliforms for Hogtown Creek is a 51 % percent reduction in Fecal Coliform loading and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 51 % percent reduction in current loading; and

(b) The LA Load Allocation for nonpoint sources is a 51 % percent reduction in current loading.; and,

(c) The Margin of Safety is implicit.

(3) Lake Apopka. The TMDL Total Maximum Daily Load for TP Total Phosphorus for Lake Apopka, which includes Lake Apopka Outlet and Gourd Neck Spring, is 15.9 metric tons per year, and is allocated as follows:

(a) The WLA Wasteload Allocation for the Winter Garden WWTF is 1.21 metric tons per year;

(b) The LA Load Allocation for nonpoint sources is 14.16 metric tons per year; and,

(c) The Margin of Safety is 0.53 metric tons per year.

(4) Lake Beauclair. The TMDL Total Maximum Daily Load for TP Total Phosphorus (TP) for Lake Beauclair is 7,056 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 85 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 7,056 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(5) Lake Dora and Dora Canal. The TMDL Total Maximum Daily Load for TP Total Phosphorus (TP) for Lake Dora and Dora Canal is 13,230 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 67 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 13,230 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(6) Lake Eustis and Haines Creek. The TMDL Total Maximum Daily Load for TP Total Phosphorus (TP) for Lake Eustis is 20,286 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 43 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 20,286 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(7) Lake Griffin. The TMDL Total Maximum Daily Load for TP Total Phosphorus (TP) for Lake Griffin is 26,901 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 66 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 26,901 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(8) Lake Harris, Little Lake Harris, and Helena Run. The combined TMDL for TP Total Phosphorus (TP) for Lake Harris, Little Lake Harris, and Helena Run is 18,302 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 32 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 18,302 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(9) Lake Wauberg. The TMDL for Lake Wauberg is 2,062 lbs/yr of TN and 374 lbs/yr of TP and is allocated as follows:

(a) The Total Maximum Daily Load for Total Nitrogen (TN) for Lake Wauberg is 2,062 pounds per year (lbs/y) and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable because there are no permitted point sources authorized to discharge wastewater to Lake Wauberg; and,

(b)2. The LA Load Allocation for nonpoint sources is 2,062 lbs/yr lbs/y of TN and 374 lbs/yr of TP.; and,

3. The Margin of Safety is implicit.

(b) The Total Maximum Daily Load for Total Phosphorus for Lake Wauberg is 374 pounds per year (lbs/y) and is allocated as follows:

1. The Wasteload Allocation for point sources is not applicable because there are no permitted point sources authorized to discharge wastewater to Lake Wauberg,

2. The Load Allocation for nonpoint sources is 374 lbs/y of TP; and,

3. The Margin of Safety is implicit.

(10) Lake Yale and Lake Yale Canal. The combined TMDL for TP Total Phosphorus (TP) for Lake Yale and Lake Yale Canal is 2,844 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 10 % percent reduction in current TP loading; and,

(b) The LA Load Allocation for nonpoint sources is 2,844 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(11) Newnans Lake.

(11) Newnans Lake. (a) The TMDL Total Maximum Daily Load for Total Nitrogen (TN) for Newnans Lake is 85,470 lbs/yr of TN and 10,924 lbs/yr of TP, pounds per year (lbs/y), and is allocated as follows:

(a)1. The WLA Wasteload Allocation for point sources authorized to discharge wastewater to Newnans Lake is 3,104 lbs/yr lbs/y of TN, and 386 lbs/yr of TP; and

(b)2. The LA Load Allocation for nonpoint sources is 82,366 lbs/yr lbs/y of TN; and, 10,538 lbs/yr of TP.

3. The Margin of Safety is implicit.

(b) The Total Maximum Daily Load for Total Phosphorus (TP) for Newnans Lake is 10,924 pounds per year (lbs/y), and is allocated as follows:

1. The Wasteload Allocation for point sources authorized to discharge wastewater to Newnans Lake is 386 lbs/y of TP,

2. The Load Allocation for nonpoint sources is 10,538 lbs/y of TP; and,

3. The Margin of Safety is implicit.

(12) Orange Lake. The TMDL Total Maximum Daily Load for Orange Lake is 15,262 lbs/yr of TP, pounds per year (lbs/y) of Total Phosphorus (TP) and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater point sources is not applicable; and because there are no permitted point sources authorized to discharge wastewater to Orange Lake,

(b) The LA Load Allocation for nonpoint sources is 15,262 lbs/yr lbs/y of TP.; and,

(c) The Margin of Safety is implicit.

(13) Palatlakaha River. The TMDLs Total Maximum Daily Loads for the Palatlakaha River are 43,042 pounds per year of BOD, 16,696 pounds per year of TN, and 2,207 pounds per year of TP, and are allocated as follows:

(a) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 12.8 % percent reduction in current BOD loading, a 5.2 % percent reduction in current TN loading, and a 7.2 % percent reduction in current TP loading; and

(b) The LA Load Allocations for nonpoint sources is are 43,042 pounds per year of BOD, 16,696 pounds per year of TN, and 2,207 pounds per year of TP.; and,

(c) The Margin of Safety is implicit.

(14) Sweetwater Branch. The bacteriological TMDL Total Maximum Daily Load for Fecal Coliforms for Sweetwater Branch is a 70 % percent reduction in Fecal Coliform loading from nonpoint sources and is allocated as follows:

(a) The WLA Wasteload Allocation for point sources discharging wastewater to Sweetwater Branch is for all permittees to meet the Class III criteria for Fecal Coliforms and for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 70 % percent reduction in current loading; and

(b) The LA Load Allocation for nonpoint sources is a 70 % percent reduction in current loading.; and,

(c) The Margin of Safety is implicit.

(15) Trout Lake.

(15) Trout Lake. (a) The TMDL Total Maximum Daily Load for Trout Lake for Total Nitrogen (TN) is 9,733 pounds lbs/yr of TN and 521 lbs/yr of TP, per year (lbs/y), and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable; because there are no permitted point sources authorized to discharge wastewater to Trout Lake,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 60 % percent reduction of current TP Total Phosphorus loading, and an 80 % reduction of current TN loading; and

(c)3. The LA Load Allocation for nonpoint sources is 9,733 lbs/y of TN; and, 521 lbs/yr of TP.

4. The Margin of Safety is implicit.

(b) The Total Maximum Daily Load for Total Phosphorus (TP) for Trout Lake is 521 lbs/y, and is allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable because there are no permitted point sources authorized to discharge wastewater to Trout Lake,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 80 percent reduction of current Total Nitrogen loading,

3. The Load Allocation for nonpoint sources is 521 lbs/y of TP; and,

4. The Margin of Safety is implicit.

(16) Tumblin Creek.

(16) Tumblin Creek. (a) The bacteriological TMDL Total Maximum Daily Load for Fecal Coliforms for Tumblin Creek is a 74 % percent reduction in Fecal Coliform loading from nonpoint sources and is allocated as follows:

(a)1. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 74 % percent reduction in current loading; and,

(b)2. The Load Allocation for nonpoint sources is a 74 percent reduction in current loading.; and,

3. The Margin of Safety is implicit.

(b) The Total Maximum Daily Load for Total Coliforms for Tumblin Creek is a 91 percent reduction in Total Coliform loading from nonpoint sources and is allocated as follows:

1. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 91 percent reduction in current loading,

2. The Load Allocation for nonpoint sources is a 91 percent reduction in current loading; and,

3. The Margin of Safety is implicit.

(17) Lake Carlton. The TMDL Total Maximum Daily Load for TP Total Phosphorus (TP) for Lake Carlton is 195 pounds/year of TP, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 59 % percent reduction in current TP loading; and

(b) The LA Load Allocation for nonpoint sources is 195 pounds TP per year.; and,

(c) The Margin of Safety is implicit.

(18) Ocklawaha River. The Total Maximum Daily Load for Total Coliforms for the Ocklawaha River above Daisy Creek is a 43.6 percent reduction in Total Coliform loading and is allocated as follows:

(a) The Wasteload Allocation for point sources is not applicable because there are no permitted point sources authorized to discharge wastewater or stormwater to the Ocklawaha River;

(b) The Load Allocation for nonpoint sources is a 43.6 percent reduction in current loading; and,

(c) The Margin of Safety is implicit.

(18)(19) Alachua Sink. The TMDL Total Maximum Daily Load for TN Total Nitrogen for Alachua Sink is a long-term annual average of 256,322 pounds/year, and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater point source discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Wastewater Permitting Program is 41,003 pounds/year;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 45 % percent reduction of current TN; and Total Nitrogen loading;

(c) The LA Load Allocation for nonpoint sources is a 45 % percent reduction of current TN Total Nitrogen loading., and,

(d) The Margin of Safety is implicit.

(19)(20) Silver Springs, Silver Springs Group and Upper Silver River. The nitrate-nitrite TMDL is an in-stream monthly arithmetic mean concentration of 0.35 mg/L and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocation for surface water discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which, based on the mean concentrations from the 2000-2011 period, will require a 79 % percent reduction of nitrate-nitrite; and

(c) The LA Load Allocations for nonpoint sources is are to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which, based on the mean concentrations from the 2000-2011 period, will require a 79 % percent reduction of nitrate-nitrite. nitrate;

(d) The Margin of Safety is implicit.

(20)(21) Lake Denham. The nutrient TMDL Total Maximum Daily Load (TMDL) for Lake Denham is a seven-year average of annual loads of 16,468 kilograms per year (kg/year) TN Total Nitrogen (TN) and 593 kg/year TP, Total Phosphorus (TP), which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 26.8 µg/L, and is allocated as follows:

(a) The WLA wasteload allocation (WLA) for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is a 61% reduction of TN and a 61% reduction of TP based on average concentrations from the 2000-2012 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 61% reduction of TN and a 61% reduction of TP based on average loads from the 2000-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(21)(22) Lake Weir. The nutrient TMDL for Lake Weir is a seven-year average of annual loads of 27,432 kg/year TN and 1,667 kg/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color and low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 19% reduction of TN and a 39% reduction of TP based on average concentrations from the 2000-2012 period; and

(c) The LA for nonpoint sources is a 19% reduction of TN and a 39% reduction of TP based on average loads from the 2000-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(22)(23) Marshall Lake. The nutrient TMDL for Marshall Lake is a seven-year average of annual loads of 2,046 kg/year TN and 97 kg/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 35% reduction of TN and a 69% reduction of TP based on average concentrations from the 2000-2012 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 35% reduction of TN and a 69% reduction of TP based on average loads from the 2000-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(23)(24) Lochloosa Lake. The nutrient TMDL for Lochloosa Lake is a seven-year average of annual loads of 78,163 kg/year TN and 4,505 kg/year TP, which are intended to achieve a seven-year average of AGM annual geometric mean chlorophyll a concentration of 38 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is not applicable; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 59% reduction of TN and a 41% reduction of TP based on average loads from the 2004-2010 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(24)(25) Cross Creek. The nutrient TMDL for Cross Creek is a seven-year average of annual loads of 32,514 kg/year TN and 1,601 kg/year TP, which are intended to achieve a seven-year average, AGM annual geometric mean chlorophyll a concentration of 38 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is not applicable; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 43% reduction of TN and a 31% reduction of TP based on average loads from the 2004-2010 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(25)(26) Lake Roberts. The nutrient TMDL for Lake Roberts is a seven-year average of annual loads of 1,655 kg/year TN and 100 kg/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for high color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 16% reduction of TN and a 28% reduction of TP based on average concentrations from the 2000-2012 period; and

(c) The LA for nonpoint sources is a 16% reduction of TN and a 28% reduction of TP based on average loads from the 2000-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 8-14-03, Amended 12-3-03, 5-25-04, 6-12-06, 2-5-13, 3-13-17, 5-30-17, _____.

 

62-304.505 Middle St. Johns River Basin TMDLs.

(1) Lake Jesup.

(1) Lake Jesup. (a) Total Nitrogen. The TMDL Total Maximum Daily Load for Lake Jesup Total Nitrogen (TN) is 247.3 tons/year, of TN and 19.0 tons/year of TP, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 50 % percent reduction of current TN loading and a 34% reduction of TP oading; and Total Nitrogen loading,

(c)3. The LA Load Allocation for nonpoint sources is 247.3 tons/year of TN; and, 19.0 tons/year of TP.

4. The Margin of Safety is implicit.

(b) Total Phosphorus. The Total Maximum Daily Load for Total Phosphorus (TP) is 19.0 tons/year, and is allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 34 percent reduction of current TP loading,

3. The Load Allocation for nonpoint sources is 19.0 tons/year of TP; and,

4. The Margin of Safety is implicit.

(2) Crane Strand Drain.

(2) Crane Strand Drain (a) Total Nitrogen. The DO TMDL for Crane Strand Drain Total Maximum Daily Load for Total Nitrogen (TN) is 13.5 tons/year, of TN and 31.3 tons/year of BOD, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 29 % percent reduction of current TN loading, and a 57 % reduction of current BOD loading; and

(c)3. The Load Allocation for nonpoint sources is 13.5 tons/year of TN; and, 31.3 tons/year of BOD.

4. The Margin of Safety is implicit.

(b) Biochemical Oxygen Demand. The Total Maximum Daily Load for BOD is 31.3 tons/year, and is allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 57 percent reduction of current BOD loading,

3. The Load Allocation for nonpoint sources is 31.3 tons/year of BOD; and,

4. The Margin of Safety is implicit.

(c) Fecal and Total Coliform. The Total Maximum Daily Loads are an annual median of 2.06 x 1011 colonies/day for fecal coliform and an annual median of 1.24 x 1012 colonies/day for total coliform, and are allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin to result in a 49 percent reduction of in-stream fecal coliform loadings and a 32 percent reduction of in-stream total coliform loadings,

3. The Load Allocation for nonpoint sources is a 49 percent reduction of in-stream fecal coliform loadings and a 32 percent reduction of in-stream total coliform loadings,

4. The Margin of Safety is implicit; and,

5. While the LA and WLA for fecal and total 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 and total coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(3) Fecal and Total Coliform TMDL for Crane Strand. and Crane Strand Drain. The bacteriological TMDL for Crane Strand and Crain Strand Drain is Total Maximum Daily Loads are an annual median of 2.06 x 1011 colonies/day for fecal coliform and an annual median of 1.24 x 1012 colonies/day for total coliform, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater point sources is not applicable;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin to result in a 49 % percent reduction of in-stream fecal coliform loadings; and a 32 percent reduction of in-stream total coliform loadings;

(c) The LA Load Allocation for nonpoint sources is a 49 % percent reduction of in-stream fecal coliform loadings. and a 32 percent reduction of in-stream total coliform loadings;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal and total 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 and total coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(4) Long Branch.

(4) Long Branch. (a) Fecal and Total Coliform. The bacteriological TMDL is Total Maximum Daily Loads are an annual median of 4.64 x 1010 colonies/day for fecal coliform, and an annual median of 2.79 x 1011 colonies/day for total coliform, and are allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable;,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin to result in a 32 % percent reduction of in-stream fecal coliform loadings; and a 22 percent reduction of in-stream total coliform loadings,

(c)3. The LA Load Allocation for nonpoint sources is a 32 % percent reduction of in-stream fecal coliform concentrations. and a 22 percent reduction of in-stream total coliform concentrations,

4. The Margin of Safety is implicit; and,

5. While the LA and WLA for fecal and total coliform have been expressed as the percent reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream fecal and total coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(5) Long Branch. (b) Biochemical Oxygen Demand. The DO TMDL for Long Branch Total Maximum Daily Load for BOD is 14.96 tons per year, for BOD, 0.74 tons per year TP, and 5.20 tons per year TN, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 10 % percent reduction of current BOD loading in the tributaries to Long Branch, a 30 % reduction of current TP loading in the tributaries to Long Branch, and a 17 % reduction of current TN loading in the main channel of Long Branch; and

(c)3. The LA Load Allocation for nonpoint sources is a 10% reduction of current BOD loading in the tributaries to Long Branch; and, , a 30 % reduction of current TP loading in the tributaries to Long Branch, and a 17 % reduction of current TN loading in the main channel of Long Branch.

4. The Margin of Safety is implicit.

(c) Total Phosphorus. The Total Maximum Daily Load for TP is 0.74 tons per year, and is allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 30 percent reduction of current TP loading in the tributaries to Long Branch,

3. The Load Allocation for nonpoint sources is a 30% reduction of current TP loading in the tributaries to Long Branch; and,

4. The Margin of Safety is implicit.

(d) Total Nitrogen. The Total Maximum Daily Load for TN is 5.20 tons per year, and is allocated as follows:

1. The Wasteload Allocation for wastewater point sources is not applicable,

2. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 17 percent reduction of current TN loading in the main channel of Long Branch,

3. The Load Allocation for nonpoint sources is a 17% reduction of current TN loading in the main channel of Long Branch; and,

4. The Margin of Safety is implicit.

(5) Unless specifically stated, “current TN loading,” “current BOD loading,” “in-stream fecal coliform loadings,” and “in-stream total coliform loadings” shall be the average loading for the year the Secretary adopted the verified list that first listed the waterbody as impaired for the parameter of concern.

(6) Gee Creek. The bacteriological fecal coliform TMDL for Gee Creek is 5.63 x 1010 counts/day, for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 79 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 79 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(7) Lake Harney. The DO and nutrient TMDLs for Lake Harney to address the low dissolved oxygen and nutrient impairments are 1,522 tons/year of TN total nitrogen (TN) and 109 tons/year of TP, total phosphorus (TP), and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 39 % percent reduction of TN and 33 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 39 % percent reduction of TN and 33 % percent reduction of TP at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TN and TP 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 TN and TP concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(8) Little Econlockhatchee River. The bacteriological fecal coliform TMDL for the Little Econlockhatchee River is 6.26 x 1011 counts/day, for fecal coliform, and is allocated as follows:

(a) The WLA for the Iron Bridge Regional Water Reclamation Facility (FL0037966) is that it must meet its NPDES permit limits;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(9) Smith Canal. The bacteriological fecal coliform TMDL for Smith Canal is 400 counts/100mL, for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(10) Smith Canal. The DO TMDL to address the low dissolved oxygen impairment for Smith Canal is 1.95 tons/year of TP, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria, based on the measured concentrations from the 1996 to 2003 period, will require a 26 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LA for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria, based on the measured concentrations from the 1996 to 2003 period, will require a 26 percent reduction of TP at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TP 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 TP concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(11) Soldier Creek. The bacteriological fecal coliform TMDL for Soldier Creek is 2.87 x 1010 counts/day, for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria, based on the measured concentrations from the 2001 to 2008 period, will require a 37 % percent reduction at sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 37 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(12) St. Johns River above Lake Monroe and Lake Monroe. The DO and nutrient TMDLs for the St. Johns River above Lake Monroe to address the low dissolved oxygen and nutrient impairments are 1,892 tons/year of TN and 143 tons/year of TP, and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, are a 38 % percent reduction of TN and 31 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, are a 38 % percent reduction of TN and 31 % percent reduction of TP at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TN and TP 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 TN and TP concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(13) St. Johns River above Wekiva River. The DO and nutrient TMDLs for the St. Johns River above the Wekiva River to address the low dissolved oxygen and nutrients are 1,906 tons/year of TN and 144 tons/year of TP, and are allocated as follows:

(a) The WLAs for the Sanford/North Wastewater Treatment Facility (FL0020141) are 9 tons/year of TN and 1 ton/year of TP;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 37 % percent reduction of TN and 31 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 37 % percent reduction of TN and 31 % percent reduction of TP at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TN and TP 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 TN and TP concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(14) St. Johns River Downstream of Lake Harney and St. Johns River above Lake Jesup. The DO and nutrient TMDLs for the St. Johns River Downstream of Lake Harney and the St. Johns River above Lake Jesup to address the low dissolved oxygen and nutrient impairments are 1,697 tons/year of TN and 125 tons/year of TP, and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 37 % percent reduction of TN and 32 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria and nutrient targets, based on the measured concentrations from the 1996 to 2003 period, will require a 37 % percent reduction of TN and 32 % percent reduction of TP at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for TN and TP 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 TN and TP concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(15) Volusia Blue Spring and Volusia Blue Spring Run. The nutrient TMDL is a monthly arithmetic mean nitrate-nitrite concentration of 0.35 mg/L at the spring vent of Volusia Blue Spring and in-stream for Volusia Blue Spring Run, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 municipal separate storm sewer system (MS4) permitting program is to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which will require a 45 % percent reduction of nitrate-nitrite based on the mean concentrations from the 2001-2013 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that in-stream nitrate concentrations meet the TMDL target, which will require a 45 % percent reduction of nitrate-nitrite based on the mean concentrations from the 2001-2013 period.;

(d) The Margin of Safety is Implicit.

(16) DeLeon Spring. The nutrient TMDL for the DeLeon Spring is an annual arithmetic mean of 0.35 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is a 56% reduction of nitrate-nitrite based on average concentrations from the 2009-2016 period; and

(c) The LA for nonpoint sources is a 56% reduction of nitrate-nitrite based on average loads from the 2009-2016 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for nitrate has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(17) Gemini Springs. The nutrient TMDL for Gemini Springs is an annual arithmetic mean of 0.35 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 74% reduction of nitrate-nitrite based on average concentrations from the 2009-2016 period; and

(c) The LA for nonpoint sources is a 74% reduction of nitrate-nitrite based on average loads from the 2009-2016 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for nitrate has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(18) Lake George. The nutrient TMDL for Lake George is a seven-year average of annual loads of 4,132,773 kilograms per year (kg/year) TN and 219,324 kg/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 23 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 7% reduction of TN and a 29% reduction of TP from the 2003-2013 period; and

(c) The LA for nonpoint sources is a 7% reduction of TN and a 29% reduction of TP based on average loads from the 2003-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(19) St. Johns River above Ocklawaha River. The nutrient TMDL for the St. Johns River above the Ocklawaha River is a seven-year average of annual loads of 4,132,773 kg/year TN and 219,324 kg/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 22 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 7% reduction of TN and a 29% reduction of TP from the 2003-2013 period; and

(c) The LA for nonpoint sources is a 7% reduction of TN and a 29% reduction of TP based on average loads from the 2003-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(20) St. Johns River below Lake George. The nutrient TMDL for the St. Johns River below Lake George is a seven-year average of annual loads of 4,132,773 kg/year TN and 219,324 kg/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 23 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 7% reduction of TN and a 29% reduction of TP from the 2003-2013 period; and

(c) The LA for nonpoint sources is a 7% reduction of TN and a 29% reduction of TP based on average loads from the 2003-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(21) Lake Adair. The nutrient TMDL for Lake Adair is a seven-year average of annual loads of 1,201 pounds per year (lbs/year) TN and 72 lbs/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 45% reduction of TN and a 54% reduction of TP from the 2003-2013 period; and

(c) The LA for nonpoint sources is a 45% reduction of TN and a 54% reduction of TP based on average loads from the 2003-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(22) Lake Alma. The nutrient TMDL for Lake Alma is a seven-year average of annual loads of 1,036 lbs/year TN and 91 lbs/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 30 µg/L, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 43% reduction of TN and a 17% reduction of TP from the 2003-2014 period; and

(c) The LA for nonpoint sources is a 43% reduction of TN and a 17% reduction of TP based on average loads from the 2003-2014 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(23) Lake Searcy. The nutrient TMDL for Lake Searcy is a seven-year average of annual loads of 845 lbs/year TN and 96 lbs/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 65% reduction of TN and a 38% reduction of TP from the 2003-2014 period; and

(c) The LA for nonpoint sources is a 65% reduction of TN and a 38% reduction of TP based on average loads from the 2003-2014 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(24) Bear Gully Lake. The nutrient TMDL for Bear Gully Lake is a seven-year average of annual loads of 23,166 lbs/year TN and 1,387 lbs/year TP, which are intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 20% reduction of TN and a 18% reduction of TP from the 2003-2014 period; and

(c) The LA for nonpoint sources is a 20% reduction of TN and a 18% reduction of TP based on average loads from the 2003-2014 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(25) Bethel Lake. The nutrient TMDL for Bethel Lake is a seven-year average of annual loads of 4,234 lbs/year TN and 234 lbs/year TP, which are intended to achieve the applicable chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 45% reduction of TN (calculated from 7,762 lbs/year) and a 67 % reduction of TP (calculated from 715 lbs/year) from the 2002-2013 period; and

(c) The LA for nonpoint sources is a 45 % reduction of TN (calculated from 7,762 lbs/year) and a 67% reduction of TP (calculated from 715 lbs/year) based on average loads from the 2002-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

(26) Lake Gem. The nutrient TMDL for Lake Gem is a three-year average of annual loads of 1,130 lbs/year TN and 68 lbs/year TP, which are intended to achieve the applicable chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 0% reduction of TN (calculated from 1,130 lbs/year) and a 62% reduction of TP (calculated from 176 lbs/year) from the 2007-2013 period; and

(c) The LA for nonpoint sources is a 0% reduction of TN (calculated from 1,130 lbs/year) and a 62% reduction of TP (calculated from 176 lbs/year) based on average loads from the 2007-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 8-3-06, Amended 10-15-09, 7-17-14, 10-18-17, 3-26-18, 1-30-20, _____.

 

62-304.506 Wekiva Springs Study Area TMDLs.

(1) Wekiwa Spring. The TMDL Total Maximum Daily Loads for Wekiwa Spring is are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP total phosphorus for the discharge from Wekiwa Spring, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater point sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 79% reduction of nitrate-nitrite and a 64% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are a 79% reduction of nitrate-nitrite and a 64% reduction of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(2) Wekiva River Upstream Segment. The TMDL Total Maximum Daily Loads for the Wekiva River Upstream Segment is are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP total phosphorus in the stream segment, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is are 2,805 lbs/month of nitrate-nitrite and 40 lbs/month of TP. total phosphorus. The WLA is wasteload allocations are granted to the Wekiva Hunt Club Wastewater Treatment Facility;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 68% reduction of nitrate-nitrite and a 61% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are a 68% reduction of nitrate-nitrite and a 61% reduction of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(3) Wekiva River Downstream Segment. The TMDL Total Maximum Daily Loads for the Wekiva River Downstream Segment are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP total phosphorus in the stream segment, and is are allocated as follows:

(a) The WLA Wasteload Allocations for wastewater sources are 572 lbs/month of TN total nitrogen and 191 lbs/month of TP total phosphorus granted to the SCES/Yankee Lake Wastewater Reclamation Facility, and 91 lbs/month of nitrate-nitrite and 26 lbs/month of TP total phosphorus granted to the Altamonte Springs Regional Wastewater Reclamation Facility;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 47% reduction of nitrate-nitrite and a 57% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources are a 47% reduction of nitrate-nitrite and a 57% reduction of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(4) Rock Springs. The TMDL Total Maximum Daily Loads for Rock Springs is are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP total phosphorus for the discharge from Rock Springs, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 81% reduction of nitrate-nitrite and a 23% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are a 81% reduction of nitrate-nitrite and a 23% reduction of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(5) Rock Springs Run. The TMDL Total Maximum Daily Loads for Rock Springs Run is are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP total phosphorus in the stream segment, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 63% reduction of nitrate-nitrite and a 58% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are a 63% reduction of nitrate-nitrite and a 58% reduction of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(6) Little Wekiva Canal. dissolved oxygen TMDL. The DO TMDL Total Maximum Daily Loads to address the low dissolved oxygen condition in for the Little Wekiva Canal is are 76,554 lbs/year of BOD biochemical oxygen demand and 42,624 lbs/year TN, total nitrogen, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 11% reduction of BOD biochemical oxygen demand and a 45% reduction of TN total nitrogen based on data in the period from 1997 through 2005; and

(c) The LA Load Allocations for nonpoint sources is are 76,554 lbs/year of BOD biochemical oxygen demand and 42,624 lbs/year TN total nitrogen based on data in the period from 1997 through 2005.; and,

(d) The Margin of Safety is implicit.

(7) Fecal Coliform TMDL for Little Wekiva Canal and Little Wekiva River: The bacteriological TMDL for the Little Wekiva Canal and the Little Wekiva River Total Maximum Daily Load is an annual median of 2.06 x 1011 colonies/day for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for the City of Altamonte Springs Regional Wastewater Reclamation Facility is 1.19 x 108 colonies/day; for fecal coliform;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1996 through 2003 period, will require a 43% reduction at sources contributing to exceedances of the criteria; and

(c) The LA Load Allocation 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 1996 through 2003 period, will require a 43% reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(8) Spring Lake. The TMDL Total Maximum Daily Loads for Spring Lake is are 8,551 lbs/year of TN total nitrogen and 641 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 30% reduction of TN total nitrogen and a 65% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources are 8,551 lbs/year of TN total nitrogen and 641 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(9) Lake Florida. The TMDL Total Maximum Daily Loads for Lake Florida is are 8,377 lbs/year of TN total nitrogen and 571 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 34% reduction of TN total nitrogen and a 69% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are 8,377 lbs/year of TN total nitrogen and 571 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(10) Lake Orienta. The TMDL Total Maximum Daily Loads for Lake Orienta is are 6,092 lbs/year of TN total nitrogen and 451 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 42% reduction of TN total nitrogen and a 74% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are 6,092 lbs/year of TN total nitrogen and 451 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(11) Lake Adelaide. The TMDL Total Maximum Daily Loads for Lake Adelaide is are 3,003 lbs/year of TN total nitrogen and 228 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 40% reduction of TN total nitrogen and a 72% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources are 3,003 lbs/year of TN total nitrogen and 228 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(12) Lake Lawne. The TMDL Total Maximum Daily Loads for Lake Lawne is are 21,692 lbs/year of TN total nitrogen and 2,005 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 26% reduction of TN total nitrogen and a 49% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are 21,692 lbs/year of TN total nitrogen and 2,005 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(13) Silver Lake. The TMDL Total Maximum Daily Loads for Silver Lake is are 6,241 lbs/year of TN total nitrogen and 370 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is are a 24% reduction of TN total nitrogen and a 70% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are 6,241 lbs/year of TN total nitrogen and 370 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

(14) Bay Lake. The TMDL Total Maximum Daily Loads for Bay Lake is are 1,428 lbs/year of TN total nitrogen and 109 lbs/year of TP, total phosphorus, and is are allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable;

(b) The WLA Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 39% reduction of TN total nitrogen and a 66% reduction of TP total phosphorus based on data in the period from 1996 through 2006; and

(c) The LA Load Allocations for nonpoint sources is are 1,428 lbs/year of TN total nitrogen and 109 lbs/year of TP total phosphorus based on data in the period from 1996 through 2006.; and,

(d) The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-8-08, Amended _____.

 

62-304.510 Upper St. Johns River TMDLs.

(1) St. Johns River Above Lake Poinsett. The TMDL for TP is 89 tons per year, and is allocated as follows:

(a) The Total Maximum Daily Load for Total Phosphorus (TP) is 89 tons per year, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is 0.023 tons per year of TP;,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 37 % percent reduction of current TP loading; and,

(c)3. The LA Load Allocation for nonpoint sources is a 37 % percent reduction of current TP loading.; and,

4. The Margin of Safety is implicit.

(2)(b) St. Johns River Above Lake Pinsett. The TMDL Total Maximum Daily Load for (BOD) Biochemical Oxygen Demand is 1,970 tons per year, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is 1.0 tons per year of BOD;,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 34 % percent reduction of current BOD loading; and,

(c)3. The LA Load Allocation for nonpoint sources is a 34 % percent reduction of current BOD loading.; and,

4. The Margin of Safety is implicit.

(3)(2) Lake Hell n’ Blazes. The TMDL Total Maximum Daily Load for Total Phosphorus (TP) is 44 tons per year, and is allocated as follows:

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

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 52 % percent reduction of current TP loading; and,

(c) The LA Load Allocation for nonpoint sources is a 52 % percent reduction of current TP loading.; and,

(d) The Margin of Safety is implicit.

(4)(3) St. Johns River Above Sawgrass Lake. The TMDL for TP is 57 tons per year, and is allocated as follows:

(a) The Total Maximum Daily Load for Total Phosphorus (TP) is 57 tons per year, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable; ,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 32 % percent reduction of current TP loading; and,

(c)3. The LA Load Allocation for nonpoint sources is a 32 % percent reduction of current TP loading.; and,

4. The Margin of Safety is implicit.

(5)(b) St. Johns River Above Sawgrass Lake. The TMDL Total Maximum Daily Load for BOD is 1,264 tons per year, and is allocated as follows:

(a)1. The WLA Wasteload Allocation for wastewater point sources is not applicable;,

(b)2. The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 37 % percent reduction of current BOD loading; and,

(c)3. The LA Load Allocation for nonpoint sources is a 37 % percent reduction of current BOD loading.; and,

4. The Margin of Safety is implicit.

(d)(4) Unless specifically stated, “current TP loading” and “current BOD loading” shall be the average loading for the year the Secretary adopted the verified list that first listed waterbody as impaired for the parameter of concern.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 8-3-06, Amended _____.

 

62-304.515 Kissimmee River Basin TMDLs.

(1) Lake Holden.: The nutrient total maximum daily load (TMDL) for Lake Holden is 148 lb/year of total phosphorus (TP) and 10,526 lb/year of total nitrogen (TN), and is allocated as follows:

(a) The wasteload allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permitting Program is a 74.0 % reduction of TP based on the year 2000 landuse and a modeling period from 1996 through 2000; and

(c) The load allocation (LA) for nonpoint sources is a 74.0 % reduction of TP based on the year 2000 landuse and a modeling period from 1996 through 2000.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TP and TN has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(2) Lake Cypress.: The nutrient TMDL for Lake Cypress is 1,374,801 lb/year of TN and 51,175 lb/year of TP, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 5.0 % reduction of TN and 35.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006; and

(c) The LA for nonpoint sources is a 5.0 % reduction of TN and 35.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TP and TN nutrients have been expressed as the percent reductions needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(3) Lake Marian.: The nutrient TMDL for Lake Marian is 88,122 lb/year of TN and 6,013 lb/year of TP, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 55.0 % reduction of TN and 53.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006; and

(c) The LA for nonpoint sources is a 55.0 % reduction of TN and 53.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006.; and,

(d) The Margin of Safety is implicit.

(e) While the WLA and LA for TN and TP have been expressed as the percent reductions needed to attain the applicable Class III nutrients criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(4) Lake Jackson.: The nutrient and dissolved oxygen (DO) TMDL for Lake Jackson is 118,662 lb/year of TN and 5,553 lb/year of TP, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is 20.0 % reduction of TN and 25.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006; and

(c) The LA for nonpoint sources is 20.0 % reduction of TN and 25.0 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006.; and,

(d) The Margin of Safety is implicit.

(e) While the WLA and LA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient condition in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(5) Lake Kissimmee.: The nutrient TMDL for Lake Kissimmee is 2,795,484 lb/year of TN and 126,517 lb/year of TP, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 15.0 % reduction of TN and 17 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006; and

(c) The LAs for nonpoint sources are 15 % reduction of TN and 17 % reduction of TP based on the year 2000 landuse and a modeling period from 2000 through 2006.; and,

(d) The Margin of Safety is implicit.

(e) While the WLA and LA for TN and TP have been expressed as the percent reductions needed to attain the applicable Class III nutrients criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(6) Lake Persimmon. The nutrient TMDL for Lake Persimmon is a seven-year rolling average of annual loads of 1,247 pounds per year (lb/year) TN and 58 lb/year TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 42 % reduction of TN (calculated from 2,153 lb/year) and a 51 % reduction of TP (calculated from 119 lb/year), which are based on the highest seven-year rolling average of annual loads from the 2005-2016 period; and,

(c) The LA for nonpoint sources is a 42 % reduction of TN (calculated from 2,153 lb/year) and a 51 % reduction of TP (calculated from 119 lb/year), which are based on the highest seven-year rolling average of annual loads from the 2005-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(7) Reedy Lake. The nutrient TMDL for Reedy Lake is an AGM concentration of 0.95 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 54 % reduction of TN (calculated from 2.05 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentrations from the 2000 – 2016 period; and

(c) The LA for nonpoint sources is 54 % reduction of TN (calculated from 2.05 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentration from the 2000 - 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

(8) Lake Ida. The nutrient TMDL for Lake Ida is an AGM concentration of 0.95 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 87 % reduction of TN (calculated from 7.16 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentrations from the 2000 – 2016  period; and

(c) The LA for nonpoint sources is 87 % reduction of TN (calculated from 7.16 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentration from the 2000 - 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

(9) Hickory Lake. The nutrient TMDL for Hickory Lake is an AGM concentration of 0.95 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 69 % reduction of TN (calculated from 3.07 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentrations from the 2000 – 2016  period; and

(c) The LA for nonpoint sources is 69 % reduction of TN (calculated from 3.07 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentration from the 2000 - 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

(10) Lake Clinch. The nutrient TMDL for Lake Clinch is an AGM concentration of 0.62 mg/L TN and 0.01 mg/L TP, which are intended to achieve the applicable chlorophyll a criterion for low color and low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 18 % reduction of TN (calculated from 0.76 mg/L) and 50 % reduction of TP (calculated from 0.02 mg/L), which is based on the highest AGM concentrations from the 2000 – 2016 period; and

(c) The LA for nonpoint sources is 18 % reduction of TN (calculated from 0.76 mg/L) and 50 % reduction of TP (calculated from 0.02 mg/L), which is based on the highest AGM concentration from the 2000 - 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

(11) Lake Adelaide. The nutrient TMDL for Lake Adelaide is an AGM concentration of 0.62 mg/L TN and 0.01 mg/L TP, which are intended to achieve the applicable chlorophyll a criterion for low color and low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 6 % reduction of TN (calculated from 0.66 mg/L) and 50 % reduction of TP (calculated from 0.02 mg/L), which is based on the highest AGM concentrations from the 2000 – 2016 period; and

(c) The LA for nonpoint sources is 6 % reduction of TN (calculated from 0.66 mg/L) and 50 % reduction of TP (calculated from 0.02 mg/L), which is based on the highest AGM concentration from the 2000 - 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 12-17-13, Amended 11-15-18, 1-30-20, ______.

 

62-304.520 Indian River Lagoon TMDLs.

(1) Fecal Coliform TMDL for Crane Creek. The bacteriological TMDL Total Maximum Daily Load is an annual median of 1.23 x 1011 colonies/day for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for the Melbourne/Grant Street Wastewater Treatment Facility is 1.21 x 1010 colonies/day. The WLA Wasteload Allocation is only allowed during the maximum five-day Mechanical Integrity Test period, as defined in the Department permit;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1999 through 2007 period, will require a 56 % percent reduction at sources contributing to exceedances of the criteria; and

(c) The LA Load Allocation 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 1999 through 2007 period, will require a 56 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(2) Fecal Coliform TMDL for Eau Gallie River. The bacteriological TMDL Total Maximum Daily Load for Fecal Coliforms for Eau Gallie River is 400 counts/100 ml for fecal coliform, and is allocated as follows:

(a) A WLA Wasteload Allocation for wastewater point sources is not applicable;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1999 through 2007 period, will require an 81 % percent reduction at sources contributing to exceedances of the criteria; and

(c) The LA Load Allocation 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 1999 through 2007 period, will require an 81 % percent reduction at sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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 condition.

(3) Indian River above Max Brewer Causeway. : The Total Maximum Daily Loads (TMDLs) for the Indian River above Max Brewer Causeway are 177,220 lb/year of TN total nitrogen and 9,320 lb/year of TP total phosphorus, and are allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The combined rainfall-driven nutrient loads of 177,220 lb/year of total nitrogen and 9,320 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program are a 35 % reduction of TN total nitrogen and a 47 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 35 % reduction of TN total nitrogen and a 47 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(4) Indian River above NASA Causeway.: The TMDLs for the Indian River above NASA Causeway are 173,232 lb/year of TN total nitrogen and 14,793 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The combined rainfall-driven nutrient loads of 173,232 lb/year of total nitrogen and 14,793 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 35 % reduction of TN total nitrogen and a 47 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 35 % reduction of TN total nitrogen and a 47 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(5) Indian River above 520 Causeway.: The TMDLs for the Indian River above 520 Causeway are 147,524 lb/year of TN total nitrogen and 11,845 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources are 8,151 lb/year of TN total nitrogen and 1,589 lb/year of TP total phosphorus. The WLAs are granted to Cocoa Water Reclamation Facility (5,556 lb/year of TN total nitrogen and 1,423 lb/year of TP total phosphorus), FP & L Cape Canaveral Plant (2,555 lb/year of TN total nitrogen and 146 lb/year of TP total phosphorus), and Reliant Energy-Indian River Plant (40 lb/year TN total nitrogen and 20 lb/year of TP total phosphorus);.

(b) The combined rainfall-driven nutrient loads of 139,373 lb/year of total nitrogen and 10,256 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 36 % reduction of TN total nitrogen and a 53 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 36 % reduction of TN total nitrogen and a 53 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(6) Indian River above Melbourne Causeway.: The TMDLs for the Indian River above Melbourne Causeway are 189,068 lb/year of TN total nitrogen and 20,592 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources are 9,200 lb/year of TN total nitrogen and 225 lb/year of TP total phosphorus. The WLAs are granted to Rockledge Wastewater Treatment Facility (30 lb/year of TN total nitrogen and 30 lb/year of TP total phosphorus), and Melbourne Reverse Osmosis (9,170 lb/year of TN total nitrogen and 195 lb/year of TP total phosphorus);.

(b) The combined rainfall-driven nutrient loads of 179,868 lb/year of TN total nitrogen and 20,367 lb/year of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 36 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 36 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the flushing effects of Sebastian Inlet and the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(7) Indian River above Sebastian Inlet and the northern South Indian River.: The TMDLs for the Indian River above Sebastian Inlet and the northern South Indian River are 684,715 lb/year of TN total nitrogen and 111,594 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources are 831 lb/year of TN total nitrogen and 122 lb/year of TP total phosphorus. The WLAs are granted to BCUD/South Beaches Wastewater Treatment Facility (173 lb/year of TN total nitrogen and 36 lb/year of TP total phosphorus), Melbourne/Grant Street Wastewater Treatment Facility (182 lb/year of TN total nitrogen and 8 lb/year of TP total phosphorus), and Barefoot Bay Advanced Wastewater Treatment Facility (476 lb/year of TN total nitrogen and 78 lb/year of TP total phosphorus);.

(b) The combined rainfall-driven nutrient loads of 683,884 lb/year of total nitrogen and 111,472 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 56 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 56 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the flushing effects of Sebastian Inlet and the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(8) Central and southern South Indian River.: The TMDLs for the Central and southern South Indian River are 278,273 lb/year of TN total nitrogen and 53,599 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is 25,391 lb/year of TN total nitrogen and 1,949 lb/year of TP total phosphorus. The WLAs are granted to Vero Beach Wastewater Treatment Facility (12,173 lb/year of TN total nitrogen and 916 lb/year of TP total phosphorus), Vero Beach Demineralization Concentrate (2,985 lb/year of TN total nitrogen and 487 lb/year of TP total phosphorus), IRCUD/Hobart Park Demineralization Concentrate (2,759 lb/year of TN total nitrogen and 96 lb/year of TP total phosphorus), IRCUD/West Regional Wastewater Treatment Facility (2,838 lb/year of TN total nitrogen and 159 lb/year of TP total phosphorus), and IRCUD/South County Reverse Osmosis, Potable Water Treatment Plant (4,636 lb/year of TN total nitrogen and 291 lb/year of TP total phosphorus);.

(b) The combined rainfall-driven nutrient loads of 252,882 lb/year of total nitrogen and 51,650 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 56 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and,

(c)2. The LAs for nonpoint sources are a 56 % reduction of TN total nitrogen and a 48 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the flushing effects of Sebastian Inlet and the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(9) Banana River above Barge Canal.: The TMDLs for the Banana River above Barge Canal are 116,314 lb/year of TN total nitrogen and 7,825 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is 1,214 lb/year of TN total nitrogen and 302 lb/year of TP total phosphorus. The WLA is granted to Morton Salt Industrial Wastewater Treatment and Disposal System (1,214 lb/year of TN total nitrogen and 302 lb/year of TP total phosphorus);.

(b) The combined rainfall-driven nutrient loads of 115,100 lb/year of total nitrogen and 7,523 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 67 % reduction of TN total nitrogen and a 72 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), and.

(c)2. The LAs for nonpoint sources are a 67 % reduction of TN total nitrogen and a 72 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(10) Banana River below 520 Causeway and Banana River above 520 Causeway.: The TMDLs for the Banana River below 520 Causeway and Banana River above 520 Causeway are 144,780 lb/year of TN total nitrogen and 12,181 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is 6,173 lb/year of TN total nitrogen and 1,221 lb/year of TP total phosphorus. The WLAs are granted to Cape Canaveral Water Reclamation Facility (2,151 lb/year of TN total nitrogen and 158 lb/year of TP total phosphorus), and Cocoa Beach Water Reclamation Facility (4,022 lb/year of TN total nitrogen and 1,063 lb/year of TP total phosphorus).

(b) The combined rainfall-driven nutrient loads of 138,607 lb/year of total nitrogen and 10,960 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 59 % reduction of TN total nitrogen and a 64 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and.

(c)2. The LAs for nonpoint sources are a 59 % reduction of TN total nitrogen and a 64 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(11) Newfound Harbor.: The TMDLs for Newfound Harbor are 30,661 lb/year of TN total nitrogen and 3,247 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The combined rainfall-driven nutrient loads of 30,661 lb/year of total nitrogen and 3,247 lb/year of total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005), to be allocated as follows:

1. WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 66 % reduction of TN total nitrogen and a 70 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005);.

(c)2. The LAs for nonpoint sources are a 66 % reduction of TN total nitrogen and a 70 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).

(c) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety.

(12) Goat Creek Marine Segment.: The nutrient TMDL for the Goat Creek Marine Segment is 18,405 lb/year of TN total nitrogen and 3,376 lb/year of TP total phosphorus, and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is not applicable; and

(c) The LA for nonpoint sources is a 36 % reduction of TN total nitrogen and no reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).;

(d) The Margin of Safety is implicit; and,

(e) While the LA for nutrients have been expressed as the percent reductions needed to attain the applicable Class II criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient condition in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(13) Sykes Creek. The nutrient TMDL for Sykes Creek is 30,030 lb/year of TN total nitrogen and 3,174 lb/year of TP total phosphorus and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 66 % reduction of TN total nitrogen and a 70 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005); and

(c) The LA for nonpoint sources are a 66 % reduction of TN total nitrogen and a 70 % reduction of TP total phosphorus based on the year 2000 landuse and a 30-year long-term average annual rainfall (1975 through 2005).;

(d) The Margin of Safety is implicit. Not including the direct atmospheric deposition in the calculation makes the estimation of needed percent reduction more stringent and therefore adds to the margin of safety; and,

(e) While the WLA and LA for nutrients has been expressed as target loadings and the needed percent reductions to attain the applicable Class III criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient condition in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(14) Addison Creek.: The dissolved oxygen (DO) TMDL for Addison Creek is 35,605 lb/year of Biochemical Oxygen Demand (BOD) and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 72.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005; and

(c) The LA for nonpoint sources is a 72.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005.;

(d) The Margin of Safety is implicit; and,

(e) While the LA for BOD has been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of DO condition in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(15) Eau Gallie River.: The DO and nutrient TMDLs for the Eau Gallie River are 28,842 lb/year of TN, 4,307 lb/year of TP, and 70,056 lb/year of BOD and are allocated as follows:

(a) The WLA of TN and TP for the Melbourne Reverse Osmosis is the TN and TP loading limits established in paragraph 62-304.520(6)(a), F.A.C. for the facility. The WLA of BOD is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 51.0 % reduction of TN, 58.0 % reduction of TP, and 86.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005; and

(c) The LA for nonpoint sources is a 51.0 % reduction of TN, 58.0 % reduction of TP, and 86.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005.; and,

(d) The Margin of Safety is implicit;

(e) While the LAs for nutrients and BOD have been expressed as the percent reductions needed to attain the applicable Class III nutrient and DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient and DO conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(16) Crane Creek.: The DO and nutrient TMDLs for Crane Creek is 110,547 lb/year of BOD and the TN and TP percent reduction established in subparagraphs 62-304.520(7)(b) and (c), 62-304.520(7)(b)1. and 2., F.A.C. These TMDLs are allocated as follows:

(a) The WLA of TN and TP for the Melbourne Grant Street Wastewater Treatment Facility is the TN and TP loading limits established in paragraph 62-304.520(7)(a), F.A.C. for the facility. The WLA of BOD granted to the facility is 139 lb/year;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 80.1 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(b), 62-304.520(7)(b)1., F.A.C.; and

(c) The LA for nonpoint sources is a 80.1 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(c), 62-304.520(7)(b)2., F.A.C.; and,

(d) The Margin of Safety is implicit;

(e) While the WLA and LA for nutrients and BOD have been expressed as the percent reductions needed to attain the applicable Class III nutrients and DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient and DO conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(17) North Prong Sebastian River.: The DO TMDL for the North Prong Sebastian River is 282,346 lb/year of BOD, and is allocated as follows:

(a) The WLA to the Barefoot Bay Advanced Wastewater Treatment Facility is 2,707 lb/year of BOD;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is 69.7 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005; and

(c) The LA for nonpoint sources is 69.7 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005.; and,

(d) The Margin of Safety is implicit;

(e) While the WLA and LA for BOD have been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of DO condition in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(18) C-54 Canal at Confluence with the Sebastian River.: The DO and nutrient TMDLs for C-54 Canal at Confluence with the Sebastian River is 834,397 lb/year of BOD and the TN and TP percent reduction established in subparagraphs 62-304.520(7)(b) and (c), 62-304.520(7)(b)1. and 2., F.A.C. These TMDLs are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 72.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(b), 62-304.520(7)(b)1., F.A.C.; and

(c) The LAs for nonpoint sources are 72.3 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(c), 62-304.520(7)(b)2., F.A.C.; and,

(d) The Margin of Safety is implicit;

(e) While the WLA and LA for nutrients and BOD have been expressed as the percent reductions needed to attain the applicable Class III nutrients and DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient and DO conditions in the impaired waterbody. However, it is not the intent of the TMDL to abate natural background conditions.

(19) South Prong Sebastian River Freshwater Segment and South Prong Sebastian River Estuary Segment.: The DO and nutrient TMDLs for the South Prong Sebastian River Freshwater Segment and the South Prong Sebastian River Estuary Segment is 515,178 lb/year BOD and the TN and TP percent reduction established in subparagraphs 62-304.520(7)(b) and (c), 62-304.520(7)(b)1. and 2., F.A.C. These TMDLs are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 78.2 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP loads reductions established in subparagraph 62-304.520(7)(b), 62-304.520(7)(b)1., F.A.C.; and

(c) The LA for nonpoint sources is a 78.2 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(c), 62-304.520(7)(b)2., F.A.C.; and,

(d) The Margin of Safety is implicit;

(e) While the WLA and LA for nutrients and BOD have been expressed as the percent reductions needed to attain the applicable Class III nutrients and DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient and DO conditions in these impaired water segments. However, it is not the intent of these TMDLs to abate natural background conditions.

(20) Sebastian River above the Indian River.: The DO and nutrient TMDLs for the Sebastian River above the Indian River is 1,722,130 lb/year of BOD and the TN and TP percent reduction established in subparagraphs 62-304.520(7)(b) and (c), 62-304.520(7)(b)1. and 2., F.A.C. These TMDLs are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 74.2 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(b), 62-304.520(7)(b)1., F.A.C.; and

(c) The LA for nonpoint sources is a 74.2 % reduction of BOD based on the year 2000 landuse and a modeling period from 1996 through 2005, and the TN and TP reductions established in subparagraph 62-304.520(7)(b), F.A.C. 62-304.520(7)(b)2., F.A.C.; and,

(d) The Margin of Safety is implicit;

(e) While the WLA and LA for nutrients and BOD have been expressed as the percent reductions needed to attain the applicable Class III nutrient and DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient and DO conditions in these impaired water segments. However, it is not the intent of these TMDLs to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended 3-26-09, 4-9-13, 6-7-13, _____.

 

SOUTHWEST FLORIDA TMDLs

 

62-304.600 Tampa Bay Basin TMDLs.

(1) Allen Creek (tidal). The bacteriological fecal coliform TMDL for Allen Creek (tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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 2000 to 2007, will require a 67 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2000 to 2007, will require a 67 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(2) Alligator Creek. The bacteriological fecal coliform TMDL for Alligator Creek is 4.4 x 1010 counts/day for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 51 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 51 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(3) Bellows Lake Outlet (also known as East Lake Outfall). The bacteriological fecal coliform TMDL for Bellows Lake Outlet is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 in 2008, will require a 80 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 in 2008, will require a 80 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(4) Bishop Creek (freshwater). The bacteriological fecal coliform TMDL for Bishop Creek (freshwater) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 64 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 64 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(5) Bishop Creek (tidal). The bacteriological fecal coliform TMDL for Bishop Creek (tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2008, will require a 64 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2008, will require a 64 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(6) Brushy Creek. The bacteriological fecal coliform TMDL for Brushy Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Hillsborough County Dale Mabry Advanced Wastewater Treatment Plant (FL0036820) is that it must meet its NPDES permit limits;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2007 period, will require a 36 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2007 period, will require a 36 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform has 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.

(7) Bullfrog Creek (freshwater). The bacteriological fecal coliform TMDL for Bullfrog Creek (freshwater) is 1.66 x 1011 counts/day for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 72 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 72 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(8) Bullfrog Creek (tidal). The bacteriological fecal coliform TMDL for Bullfrog Creek (tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 46 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 46 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(9) Cross Canal (North). The bacteriological fecal coliform TMDL for Cross Canal (North) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 to 2007 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 to 2007 period, will require a 59 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform has 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.

(10) Double Branch. The bacteriological fecal coliform TMDL for Double Branch is 43 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Hillsborough County Northwest Regional Wastewater Reclamation Facility (FL0041670) is that it must meet the its NPDES permit conditions;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 85 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 85 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class II 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.

(11) Little Bullfrog Creek. The bacteriological fecal coliform TMDL for Little Bullfrog Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2007 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2007 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform has 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.

(12) Lower Rocky Creek. The bacteriological fecal coliform TMDL for Lower Rocky Creek is 43 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 83 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 83 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class II 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.

(13) Moccasin Creek (tidal). The bacteriological fecal coliform TMDL for Moccasin Creek (tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 to 2006 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 to 2006 period, will require a 60 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(14) Mullet Creek (freshwater). The bacteriological fecal coliform TMDL for Mullet Creek (freshwater) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(15) Mullet Creek (tidal). The bacteriological fecal coliform TMDL for Mullet Creek (tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2006, will require a 49 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2006, will require a 49 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(16) Rocky Creek. The bacteriological fecal coliform TMDL for Rocky Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) WLAs for the Hillsborough County Rivers Oaks Advanced Wastewater Treatment Facility (FL0027821) and the Hillsborough County Northwest Regional Wastewater Reclamation Facility (FL0041670) are that they meet the facilities’ permit limits;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 58 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 58 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(17) Sweetwater Creek. The bacteriological fecal coliform TMDL for Sweetwater Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 44 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 44 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(18) Bellows Lake (also known as East Lake). The TMDLs to address the low DO dissolved oxygen (addresses downstream impairment) and nutrient impairments are an annual average TN of 1.40 mg/L, an annual average TP of 0.055 mg/L, and an annual average BOD BOD5 of 2.00 mg/L and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005-2006 period, will require a 30.5 % percent reduction of TN, a 33.3 % percent reduction in TP, and a 63.3 % percent reduction of BOD BOD5 at sources that are contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005 -2006 period, will require a 30.5 % percent reduction of TN, a 33.3 % percent reduction in TP, and a 63.3 % percent reduction in BOD BOD5 of sources that are contributing to exceedances of the criteria.; and

(d) The Margin of Safety is implicit.

(e) While the WLA and LA have been expressed as the percent reductions needed to attain the applicable Class III criteria, it is the reductions from anthropogenic sources that will result in the required reduction of nutrients and BOD5. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 11-11-10, Amended 9-9-12, _____.

 

62-304.605 Alafia River TMDLs.

(1) Thirty Mile Creek. The Total Maximum Daily Load (TMDL) for Thirty Mile Creek (TML) is a monthly average TN total nitrogen concentration of 3.0 mg/L, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES) Permitting Program is a monthly average TN total nitrogen concentration of 3.0 mg/L; and

(b) The Load Allocation (LA) for nonpoint sources is an annual average TN total nitrogen concentration of 1.6 mg/L.; and,

(c) The Margin of Safety is implicit.

(2) Alafia River Above Hillsborough Bay. The TMDL to address the low DO dissolved oxygen and nutrient impairments for the Alafia River Above Hillsborough Bay is an annual average TN concentration of 0.65 mg/L and is allocated as follows:

(a) The WLA for the Mosaic Fertilizer Riverview Chemical Complex is 5140 lb/year of TN;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine DO dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2006 period, will require a 54 % percent reduction of TN at sources contributing to exceedances of the criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine DO dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2006 period, will require a 54 % percent reduction of TN at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN 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 TN concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(3) English Creek. The bacteriological fecal coliform TMDL for English Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(4) Mustang Ranch Creek. The TMDLs to address the low DO dissolved oxygen and nutrient impairments are an annual average TN concentration of 1.73 mg/L and an annual average TP concentration of 0.415 mg/L and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III freshwater DO dissolved oxygen criteria which, based on the measured concentrations for the 2005 to 2007 period, will require a 50 % percent reduction of TN and 45 % percent reduction of TP at sources contributing to exceedances of the criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III freshwater DO dissolved oxygen criteria which, based on the measured concentrations from the 2005 to 2007 period, will require a 50 % percent reduction of TN and 45 % percent reduction of TP at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP 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 TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(5) Mustang Ranch Creek. The bacteriological fecal coliform TMDL for Mustang Ranch Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require an 88 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require an 88 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(6) Poley Creek. The bacteriological fecal coliform TMDL for Poley Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(7) Turkey Creek. The bacteriological fecal coliform TMDL for Turkey Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Hillsborough County Valrico Advance Wastewater Treatment Facility (AWWTF FL0040983) must meet its NPDES permit conditions;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 64 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 64 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-22-05, Amended 11-2-09, _____.

 

62-304.610 Hillsborough River Basin TMDLs.

(1) Sparkman Branch. The bacteriological TMDL Total Maximum Daily Load for Sparkman Branch is a median of 6.52 x 108 colonies/day for fecal coliform and a median of 3.911 x 109 colonies/day for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 59.3 % percent reduction of current fecal coliform loading and an 86.1 percent reduction of total coliform loading; and,

(b) The LA Load Allocation for nonpoint sources is a 59.3 % percent reduction of current fecal coliform loading. and an 86.1 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(2) Hillsborough River (Segment 1443D). The Total Maximum Daily Load for the Hillsborough River (Segment 1443D) for total coliform is a median of 1.1 x 1013 colonies/day during moist conditions, which are defined as flows ranging from 124 cfs to 419 cfs, and a median of 3.88 x 1012 colonies/day loading during dry conditions, which are defined as flows ranging from 27 cfs to 91 cfs, and is allocated as follows:

(a) The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 62.3 percent reduction of current total coliform loading during moist conditions, and a 26.5 percent reduction of total coliform loading during dry conditions; and,

(b) The Load Allocation for nonpoint sources is a 62.3 percent reduction of current total coliform loading during moist conditions, and a 26.5 percent reduction of total coliform loading during dry conditions; and,

(c) The Margin of Safety is implicit.

(2)(3) Hillsborough River (Segment 1443E). The bacteriological TMDL Total Maximum Daily Load for the Hillsborough River (Segment 1443E) is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Wastewater Permitting Program is 3.34 x 109 colonies/day for fecal coliform and 2.00 x 1010 colonies/day for total coliform;

(b) The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 51.2 % percent reduction of current fecal coliform loading and a 52.9 percent reduction of total coliform loading; and

(c) The Load Allocation for nonpoint sources is a 51.2 % percent reduction of current fecal coliform loading. and a 52.9 percent reduction of total coliform loading; and,

(d) The Margin of Safety is implicit.

(3)(4) Lake Hunter. The TMDL Total Maximum Daily Load for Lake Hunter is an annual average load of 6,579 pounds/year of TN total nitrogen and 489 pounds/year of TP total phosphorus, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is an 80 % percent reduction of current TN total nitrogen and TP total phosphorus loading; and,

(b) The LA Load Allocation for nonpoint sources is an annual average load of 6,579 pounds/year of TN total nitrogen and 489 pounds/year of TP total phosphorus.; and,

(c) The Margin of Safety is implicit.

(4)(5) Baker Creek. The bacteriological TMDL Total Maximum Daily Load for Baker Creek is a median of 1.35 x 1011 colonies/day for fecal coliform and a median of 1.37 x 1012 colonies/day for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Wastewater Permitting Program is 8.72 x 109 colonies/day for fecal coliform;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 44.4 % percent reduction of current fecal coliform loading and a 41.5 percent reduction of total coliform loading; and

(c) The LA Load Allocation for nonpoint sources is a 44.4 % percent reduction of current fecal coliform loading. and a 41.5 percent reduction of total coliform loading; and,

(d) The Margin of Safety is implicit.

(5)(6) Flint Creek. The bacteriological TMDL Total Maximum Daily Load for Flint Creek is 400 counts/100 mL for fecal coliform and 2,400 counts/100 mL for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 51.2 % percent reduction of current fecal coliform loading and a 41.5 percent reduction of total coliform loading; and

(b) The LA Load Allocation for nonpoint sources is a 51.2 % percent reduction of current fecal coliform loading. and a 41.5 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(6)(7) Blackwater Creek. The bacteriological TMDL Total Maximum Daily Loads for Blackwater Creek is a are medians of 2.07 x 1012 colonies/day for fecal coliform and 1.24 x 1013 colonies/day for total coliform during high/moist conditions, which are defined as flows ranging from 33 cfs to 1,370 cfs, and a medians of 6.75 x 1010 colonies/day for fecal coliform and 4.05 x 1011 colonies/day for total coliform during dry conditions, which are defined as flows ranging from 2 cfs to 14 cfs, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Wastewater Permitting Program is 8.72 x 109 colonies/day for fecal coliform;.

(b) The WLAs Wasteload Allocations for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program are a 71.6 % percent reduction of current fecal coliform loading and a 62.6 percent reduction of current total coliform loading during high/moist conditions, and a 58.1 % percent reduction of fecal coliform loading and a 48.0 percent reduction in total coliform loading during dry conditions; and,

(c) The LAs Load Allocations for nonpoint sources are a 71.6 % percent reduction of current fecal coliform loading and a 62.6 percent reduction of current total coliform loading during high/moist conditions, and a 58.1 % percent reduction of fecal coliform loading and a 48.0 percent reduction in total coliform loading during dry conditions.; and,

(d) The Margin of Safety is implicit.

(8) Cypress Creek. The Total Maximum Daily Load for Cypress Creek is a median of 1.06 x 1012 colonies/day for total coliform, and is allocated as follows:

(a) The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 57.6 percent reduction of current total coliform loading; and,

(b) The Load Allocation for nonpoint sources is a 57.6 percent reduction of current total coliform loading; and,

(c) The Margin of Safety is implicit.

(7)(9) New River. The bacteriological TMDL Total Maximum Daily Load for the New River is a median of 6.48 x 1010 for fecal coliform and a median of 3.89 x 1011 for total coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 35.3 % percent reduction of current fecal coliform loading and a 43.6 percent reduction of total coliform loading; and

(b) The LA Load Allocation for nonpoint sources is a 35.3 % percent reduction of current fecal coliform loading. and a 43.6 percent reduction of total coliform loading; and,

(c) The Margin of Safety is implicit.

(8)(10) Mill Creek. The bacteriological fecal coliform TMDL for Mill Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(9)(11) Trout Creek. The bacteriological fecal coliform TMDL for Trout Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Hillsborough County Pebble Creek Village WWTF (FL0039896) must meet its NPDES permit conditions;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 53 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 53 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit; and,

(e) 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.

(10)(12) Channelized Stream. The TMDLs to address the low DO dissolved oxygen and nutrient impairments are an annual average 1.16 mg/L of TN and an annual average of 0.473 mg/L of TP and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 52.1 % percent reduction in anthropogenic loadings of TN and a 60.5 % percent reduction in anthropogenic loadings of TP for the 2000-2007 period at sources contributing to exceedances of the criteria; and,

(c) The LAs for nonpoint sources are a 52.1 % percent reduction in anthropogenic loadings of TN and a 60.5 % percent reduction in anthropogenic loadings of TP for the 2000-2007 period at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA 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 reductions of in-stream TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(11)(13) Lake Thonotosassa. The nutrient TMDL for Lake Thonotosassa is a seven-year rolling average of annual loads of 46,962 pounds per year (lbs/year) TN and 3,137 lbs/year TP, which is intended to achieve an AGM annual geometric mean chlorophyll a concentration of 32 µg/L not to be exceeded more than once in any consecutive 3-year period, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 29 % reduction of TN (calculated from 55,504 lbs/year) and a 89 % reduction of TP (calculated from 21,943 lbs/year), which are based on the average of annual loads from the 1999-2010 period; and,

(c) The LA for nonpoint sources is a 29 % reduction of TN (calculated from 55,504 lbs/year) and a 89 % reduction of TP (calculated from 21,943 lbs/year), which are based on the average of annual loads from the 1999-2010 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(12)(14) Flint Creek. The nutrient TMDL for Flint Creek is an AGM annual geometric mean concentration not to be exceed more than once in any consecutive 3-year period of 1.80 mg/L TN which is intended to achieve an AGM annual geometric mean chlorophyll a concentration of 18 µg/L not to be exceeded more than once in any consecutive 3-year period, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 28 % reduction of TN (calculated from 2.49 mg/L), which is based on the highest AGM annual geometric mean concentration from the 1999-2010 period; and,

(c) The LA for nonpoint sources is a 28 % reduction of TN (calculated from 2.49 mg/L), which is based on the highest AGM annual geometric mean concentration from the 1999-2010 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 12-22-04, Amended 7-7-10, 6-7-13, 7-23-19, _____.

 

62-304.615 Manatee River Basin TMDLs.

(1) Braden River above Ward Lake. The bacteriological fecal coliform Total Maximum Daily Load (TMDL) for Braden River above Ward Lake is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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 2001 to 2007 period, will require a 43 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2007 period, will require a 43 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(2) Cedar Creek. The bacteriological fecal coliform TMDL for Cedar Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 61 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 61 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(3) Gilly Creek. The bacteriological fecal coliform TMDL for Gilly Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 56 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 56 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(4) Nonsense Creek. The bacteriological fecal coliform TMDL for Nonsense Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 57 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(5) Nonsense Creek. The TMDLs to address the low DO dissolved oxygen condition are an annual median TN of 0.89 mg/L and an annual median BOD 5-day biochemical oxygen demand (BOD5) of 2.0 mg/L, and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are a 27 % percent reduction of current anthropogenic TN and a 36 % percent reduction of current anthropogenic total BOD BOD5 loading based on measured concentrations from the 2001 to 2008 period; and

(c) The LAs for nonpoint sources are a 27 % percent reduction of current anthropogenic TN, and a 36 % percent reduction of current anthropogenic total BOD BOD5 loadings based on measured concentrations from the 2001 to 2008 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and BOD5 have been expressed as the percent reductions needed to attain the applicable Class I criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream TN and BOD5 concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(6) Rattlesnake Slough. The bacteriological fecal coliform TMDL for Rattlesnake Slough is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 48 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 48 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(7) Rattlesnake Slough. The TMDLs to address the low DO dissolved oxygen and nutrient impairments in Rattlesnake Slough are 0.84 mg/L of total nitrogen (TN), 0.48 mg/L total phosphorus (TP), and 2.4 mg/L of BOD 5-day biochemical oxygen demand (BOD5) and are allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 30, 21, and 31 % percent reductions of current anthropogenic TN, TP, and BOD BOD5 loadings, respectively, based on measured concentrations from the 2001 to 2008 period; and

(c) The LAs for nonpoint sources are 30, 21, and 31 % percent reductions of current anthropogenic TN, TP, and BOD BOD5 loadings, respectively, based on measured concentrations from the 2001 to 2008 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for nutrients and BOD5 have been expressed as the percent reductions needed to attain the applicable Class I criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reduction of in-stream nutrient and BOD5. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 11-2-09, Amended _____.

 

62-304.620 Little Manatee River Basin TMDLs.

(1) Little Manatee River. The bacteriological fecal coliform Total Maximum Daily Load (TMDL) for Little Manatee River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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 2001 to 2008 period, will require a 79 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 79 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit;

(e) 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.

(2) South Fork Little Manatee River. The bacteriological fecal coliform TMDL for South Fork Little Manatee River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2008 period, will require a 43 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2001 to 2008 period, will require a 43 % percent reduction of sources contributing to exceedances of the criteria.;

(d) The Margin of Safety is implicit.

(e) 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 11-2-09, Amended _____.

 

62-304.625 Peace River Basin TMDLs.

(1) Lake Cannon. The nutrient TMDL for Lake Cannon is an annual in-lake AGM geometric mean concentration of 1.07 mg/L TN Total Nitrogen (TN) and 0.03 mg/L TP Total Phosphorus (TP) which are intended to achieve the applicable AGM annual geometric mean (AGM) chlorophyll a criterion for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System (NPDES) Municipal Separate Stormwater Sewer System (MS4) Permitting Program is a 20% reduction of TN (calculated from 1.33 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 ‒ 2016 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is 20% reduction of TN (calculated from 1.33 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(2) Lake Howard. The nutrient TMDL for Lake Howard is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 39% reduction of TN (calculated from 1.76 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 39% reduction of TN (calculated from 1.76 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(3) Lake Idylwild. The nutrient TMDL for Lake Idylwild is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 31% reduction of the TN (calculated from 1.54 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 ‒ 2016 period; and

(c) The LA for nonpoint sources is 31% reduction of TN (calculated from 1.54 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(4) Lake Jessie. The nutrient TMDL for Lake Jessie is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 12% reduction of TN (calculated from 1.21 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 12% reduction of TN (calculated from 1.21 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period, and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(5) Lake Lulu. The nutrient TMDL for Lake Lulu is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 35% reduction of TN (calculated from 1.64 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 35% reduction of TN (calculated from 1.64 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(6) Lake May. The nutrient TMDL for Lake May is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 44% reduction of TN (calculated from 1.90 mg/L) and a 57% reduction of TP (calculated from 0.07 mg/L), which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 44% reduction of TN (calculated from 1.90 mg/L) and 57% reduction of TP (calculated from 0.07 mg/L), which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(7) Lake Mirror. The TMDL Total Maximum Daily Load for Lake Mirror for TP Total Phosphorus (TP) is 55 kilograms per year (kg/year), and is allocated as follows:

(a) The WLA Wasteload Allocation for wastewater sources is not applicable; because there are no permitted point sources authorized to discharge wastewater to the lake;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 28 % percent reduction of the average TP loading for the 1990 to 1999 period;

(c) The LA Load Allocation for nonpoint sources is 51 kg/year of TP; and,

(d) The Margin of Safety is 4 kg/year of TP.

(8) Lake Shipp. The nutrient TMDL for Lake Shipp is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 49% reduction of TN (calculated from 2.08 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 49% reduction of TN (calculated from 2.08 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(9) Wahneta Farms Drainage Canal. The bacteriological TMDL fecal coliform Total Maximum Daily Load for Wahneta Farms Drainage Canal Creek is 400 counts/100 mL, for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1999 to 2004 period, will require a 39% reduction at sources contributing to exceedances of the criteria; and

(b) The LA Load Allocation 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 1999 to 2004 period, will require a 39% reduction at sources contributing to exceedances of the criteria.; and,

(c) The Margin of Safety is implicit.

(10) Peace River Above Bowlegs Creek. The bacteriological TMDL fecal coliform Total Maximum Daily Load for the Peace River Above Bowlegs Creek is a median of 2.29 x 1012 colonies/day for fecal coliform under “moist conditions,” which are defined as flows ranging from 99 to 665 cubic feet per second (cfs), and a median of 1.66 x 1011 colonies/day for fecal coliform under “dry conditions,” which are defined as flows ranging from 6.4 to 35 cfs, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1993 to 2003 period, will require a 23% reduction at sources contributing to exceedances of the criteria during moist conditions and a 52% reduction at sources contributing to exceedances of the criteria during dry conditions; and

(b) The LA Load Allocations 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 1993 to 2003 period, will require a 23% reduction at sources contributing to exceedances of the criteria during moist conditions and a 52% reduction at sources contributing to exceedances of the criteria during dry conditions.; and,

(c) The Margin of Safety is implicit.

(11) Peace Creek Drainage Canal. The bacteriological TMDL fecal coliform Total Maximum Daily Load for Peace Creek Drainage Canal is a median of 3.62 x 1011 colonies/day, for fecal coliform, and is allocated as follows:

(a) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES National Pollutant Discharge Elimination System Wastewater Permitting Program is to meet applicable water quality criteria for fecal coliform;

(b) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System 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 1992 to 2004 period, will require a 62% reduction at sources contributing to exceedances of the criteria; and

(c) The LA Load Allocation 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 1992 to 2004 period, will require a 62% reduction at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(12) While the Load Allocation and Wasteload Allocation for fecal coliform as set forth in subsections (9), (10) and (11), above, 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 coliform concentrations. However, it is not the intent of these Total Maximum Daily Loads to abate natural background conditions.

(12)(13) Lake Bonny: The nutrient Total Maximum Daily Load (TMDL) for Lake Bonny is an annual in-lake AGM geometric mean concentration of 0.89 mg/L TN Total Nitrogen (TN) and 0.04 mg/L TP, and is allocated as follows:

(a) The WLA wasteload allocation (WLA) for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Separate Storm Sewer System (MS4) Permitting Program is a 64% reduction of TN and a 60% reduction of TP based on mean concentrations from the 2002-2012 period; and

(c) The LA Load Allocation (LA) for nonpoint sources is a 64% reduction of TN and a 60% reduction of TP based on mean concentrations from the 2002-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(13)(14) Lake Hollingsworth: The nutrient TMDL for Lake Hollingsworth is an annual in-lake AGM geometric mean concentration of 0.86 mg/L TN and 0.03 mg/L TP, which is intended intented to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 68% reduction of TN (calculated from 2.66 mg/L) and a 75% reduction of TP (calculated from 0.12 mg/L), which are the highest AGMs annual geometric based on mean concentrations from the 2002-2012 period; and

(c) The LA for nonpoint sources is a 68% reduction of TN (calculated from 2.66 mg/L) and a 75% reduction of TP (calculated from 0.12 mg/L), which are the highest AGMs annual geometric based on mean concentrations from the 2002-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(14)(15) Lake Lena: The nutrient TMDL for Lake Lena is an annual in-lake AGM geometric mean concentration of 1.14 mg/L TN, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 42% reduction of TN based on mean concentrations from the 2003-2012 period; and

(c) The LA for nonpoint sources is a 42% reduction of TN based on mean concentrations from the 2003-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(15)(16) Deer Lake: The nutrient TMDL for Deer Lake is an annual in-lake AGM geometric mean concentration of 1.42 mg/L TN, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 12% reduction of TN based on mean concentrations from the 2005-2012 period; and

(c) The LA for nonpoint sources is a 12% reduction of TN based on mean concentrations from the 2005-2012 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(16)(17) Lake Haines. The nutrient TMDL for Lake Haines is an AGM annual geometric mean concentration of 1.05 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 33% reduction of TN (calculated from 1.56 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 33% reduction of TN (calculated from 1.56 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest annual geometric mean concentration from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(17)(18) Lake Rochelle. The nutrient TMDL for Lake Rochelle is an AGM annual geometric mean concentration of 1.05 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 32% reduction of TN (calculated from 1.54 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 32% reduction of TN (calculated from 1.54 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(18)(19) Lake Conine. The nutrient TMDL for Lake Conine is an AGM annual geometric mean concentration of 1.05 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 36% reduction of TN (calculated from 1.65 mg/L) and a 57% reduction of TP (calculated from 0.07 mg/L), which are the highest annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 36% reduction of TN (calculated from 1.65 mg/L) and a 57% reduction of TP (calculated from 0.07 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(19)(20) Lake Alfred. The nutrient TMDL for Lake Alfred is an AGM annual geometric mean concentration of 1.69 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 16% reduction of TN (calculated from 2.00 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 16% reduction of TN (calculated from 2.00 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(20)(21) Lake Blue. The nutrient TMDL for Lake Blue is an AGM annual geometric mean concentration of 1.16 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 66% reduction of TN (calculated from 3.45 mg/L) and a 67% reduction of TP (calculated from 0.09 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 66% reduction of TN (calculated from 3.45 mg/L) and a 67% reduction of TP (calculated from 0.09 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(21)(22) Lake Marianna. The nutrient TMDL for Lake Marianna is an AGM annual geometric mean concentration of 1.00 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 44% reduction of TN (calculated from 1.79 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 44% reduction of TN (calculated from 1.79 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(22)(23) Lake Ariana. The nutrient TMDL for Lake Ariana is an AGM annual geometric mean concentration of 0.97 mg/L TN and 0.03 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 36% reduction of TN (calculated from 1.51 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 36% reduction of TN (calculated from 1.51 mg/L) and a 0% reduction of TP (calculated from 0.03 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(23)(24) Eagle Lake. The nutrient TMDL for Eagle Lake is an AGM annual geometric mean concentration of 0.63 mg/L TN and 0.01 mg/L TP, which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 38% reduction of TN (calculated from 1.01 mg/L) and a 50% reduction of TP (calculated from 0.02 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period;, and

(c) The LA for nonpoint sources is a 38% reduction of TN (calculated from 1.01 mg/L) and a 50% reduction of TP (calculated from 0.02 mg/L), which are the highest AGM annual geometric mean concentrations from the 2003-2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(24)(25) Lake Eloise. The nutrient TMDL for Lake Eloise is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 33% reduction of TN (calculated from 1.59 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 33% reduction of TN (calculated from 1.59 mg/L) and 0% reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(25)(26) Lake Hartridge. The nutrient TMDL for Lake Hartridge is an AGM concentration of 1.07 mg/L TN and 0.03 mg/L TP, which are intended to achieve the applicable AGM chlorophyll a for low color and high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 36% reduction of TN (calculated from 1.66 mg/L) and 0% reduction of TP, which is based on the highest AGM concentrations from the 2008 – 2016 period; and

(c) The LA for nonpoint sources is 36% reduction of TN (calculated from 1.66 mg/L) and 0 % reduction of TP, which is based on the highest AGM concentration from the 2008 ‒ 2016 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(26)(27) Lake McLeod. The nutrient TMDL for Lake McLeod is a seven-year average of annual loads of 8,172 lbs/year TN and 609 lbs/year TP, which are intended to achieve the applicable chlorophyll a criterion for low color and low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 21% reduction of TN (calculated from 10,330 lbs/year) and a 46% reduction of TP (calculated from 1,120 lbs/year) from the 2001-2016 period; and

(c) The LA for nonpoint sources is a 21% reduction of TN (calculated from 10,330 lbs/year) and a 46% reduction of TP (calculated from 1,120 lbs/year) based on average loads from the 2001-2016 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 5-1-07, Amended 2-19-15, 8-19-18, 10-29-19, 1-30-20, _____.

 

62-304.640 Withlacoochee River Basin TMDLs.

(1) Rainbow Springs Group and Rainbow Springs Group Run. The nitrate-nitrite TMDL is an in-stream monthly mean concentration of 0.35 mg/L and is allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which, based on the mean concentrations from the 2000-2010 period, will require a 82 % percent reduction of nitrate-nitrite; and.

(c) The LAs Load Allocations for nonpoint sources are to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which, based on the mean concentrations from the 2000-2011 period, will require a 82 % percent reduction of nitrate-nitrite.

(d) The Margin of Safety is implicit.

(2) Lake Juliana. The nutrient TMDL for Lake Juliana is an AGM annual geometric mean of 1.03 mg/L Total Nitrogen (TN), which is intended to achieve the applicable AGM annual geometric mean chlorophyll a criterion for low color, high alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES Municipal Separate Storm Sewer System (MS4) Permitting Program is a 40 % reduction of TN based on mean concentrations from the 2003-2013 period; and.

(c) The Load Allocation (LA) for nonpoint sources is a 40 % reduction of TN based on mean concentrations from the 2003-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(3) Gum Springs (Alligator Springs). The nutrient TMDL for Gum Springs (Alligator Springs) is an annual geometric mean (AGM) of 0.35 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 78 % reduction of nitrate-nitrite (calculated from 1.58 mg/L), which is based on the highest AGM concentration from the 2009 – 2017 period; and

(c) The LA for nonpoint sources is 78 % reduction of nitrate-nitrite (calculated from 1.58 mg/L), which is based on the highest AGM from the 2009 - 2017 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for nitrate-nitrite has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(4) Wilson Head Spring. The nutrient TMDL for Wilson Head Spring is an AGM of 0.35 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 43 % reduction of nitrate-nitrite (calculated from 0.61 mg/L), which is based on the highest AGM concentration from the 2009 – 2017 period; and

(c) The LA for nonpoint sources is 43 % reduction of nitrate-nitrite (calculated from 0.61 mg/L), which is based on the highest AGM from the 2009 - 2017 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for nitrate-nitrite has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(5) Blue Spring (Citrus County). The nutrient TMDL for Blue Spring (Citrus County) is an AGM of 0.35 mg/L nitrate-nitrite at the spring vent, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 61 % reduction of nitrate-nitrite (calculated from 0.90 mg/L), which is based on the highest AGM concentration from the 2009 – 2017 period; and

(c) The LA for nonpoint sources is 61 % reduction of nitrate-nitrite (calculated from 0.90 mg/L), which is based on the highest AGM from the 2009 - 2017 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for nitrate-nitrite has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(6) Lake Agnes. The nutrient TMDL for Lake Agnes is a seven-year average of annual loads of 10,896 lbs/year TN and 618 lbs/year TP, which are intended to achieve the applicable chlorophyll a criterion for low color and low alkalinity lakes, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 41 % reduction of TN (calculated from 18,552 lbs/year) and a 69 % reduction of TP (calculated from 1,979 lbs/year) from the 2000-2016 period; and

(c) The LA for nonpoint sources is a 41 % reduction of TN (calculated from 18,552 lbs/year) and a 69 % reduction of TP (calculated from 1,979 lbs/year) based on average loads from the 2000-2016 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 5-7-13, Amended 12-11-16, 10-29-19, 1-30-20, _____.

 

62-304.645 Springs Coast Basin TMDLs.

(1) Klosterman Bayou Run Tidal Segment. The bacteriological TMDL Total Maximum Daily Load for Klosterman Bayou Run is 400 counts/100 ml for fecal coliform, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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 2005 to 2006 period, is a 52 % percent reduction of current fecal coliform loading; and

(b) 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 2005 to 2006 period, is a 52 % percent reduction of current fecal coliform loading.; and,

(c) The Margin of Safety is implicit.

(2) Saint Joes Creek Freshwater Segment. The bacteriological TMDLs Total Maximum Daily Loads for the Saint Joes Creek freshwater segment are established as follows: the Main Channel is a median of 4.1 x 1010 colonies/day for fecal coliform and the Miles Creek tributary is a median of 3.2 x 1010 colonies/day for fecal coliform, and are allocated as follows:

(a) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2006 period, is a 50 % percent reduction of current fecal coliform loading to the Saint Joes Creek Main Channel and based on the measured concentrations from the 2005 to 2006 period, is a 57 % percent reduction of fecal coliform loading to the Saint Joes Creek Miles Creek tributary; and

(b) 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 2004 to 2006 period is a 50 % percent reduction of current fecal coliform loading to the Saint Joes Creek Main Channel and based on the measured concentrations from the 2005 to 2006 period, is a 57 % percent reduction of fecal coliform loading to the Saint Joes Creek Miles Creek tributary.;

(c) The Margin of Safety is implicit;

(d) 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 coliform concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(3) 34th Street Basin Fecal Coliform TMDL. The bacteriological fecal coliform TMDL Total Maximum Daily Load for the 34th Street Basin is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2008 to 2011 period, will require a 98 % percent reduction at sources contributing to exceedances of the criteria; and

(c) 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 2008 to 2011 period, will require a 98 % percent reduction at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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 coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(4) Clam Bayou Drain Fecal Coliform TMDL. The bacteriological TMDL for the Clam Bayou Drain is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2011 period, will require a 86 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2011 period, will require a 86 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(5) Clam Bayou (East Drainage) Fecal Coliform TMDL. The bacteriological TMDL for the Clam Bayou (East Drainage) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2011 period, will require a 95 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2011 period, will require a 95 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(6) Clam Bayou Drain (Tidal) Fecal Coliform TMDL. The bacteriological TMDL for the Clam Bayou Drain (Tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2010, will require a 90 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2010, will require a 90 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(7) Cedar Creek (Tidal) Fecal Coliform TMDL. The bacteriological TMDL for Cedar Creek (Tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2011 period, will require a 88 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2011 period, will require a 88 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(8) Cedar Creek Fecal Coliform TMDL. The bacteriological TMDL for Cedar Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2010 period, will require a 87 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2011 period, will require a 87 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(9) Curlew Creek Freshwater Segment Fecal Coliform TMDL. The bacteriological TMDL for the Curlew Creek Freshwater Segment is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for the Mid-County Wastewater Treatment Plant (Permit Number FL0034789) is that the facility must meet its permit limit;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 to 2011 period, will require a 90 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004 to 2011 period, will require a 90 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(10) McKay Creek (Tidal) Fecal Coliform TMDL. The bacteriological TMDL for McKay Creek (Tidal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004 and 2010, will require no reduction from the existing condition, but must continue to meet applicable water quality standards; and

(c) 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 2004 and 2010, will require no reduction from the existing condition.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(11) McKay Creek Fecal Coliform TMDL. The bacteriological TMDL for McKay Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 to 2010 period, will require a 91 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 and 2010 period, will require a 91 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(12) Pinellas Park Ditch No. 1 (Tidal Segment) Fecal Coliform. The bacteriological TMDL for Pinellas Park Ditch No. 1 (Tidal Segment) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2004, 2006, and 2008, will require a 77 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2004, 2006, and 2008, will require a 77 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(13) Curlew Creek Tidal Segment. The TMDL to address the low DO dissolved oxygen and nutrient impairments is an annual average TN concentration of 0.95 mg/L and is allocated as follows:

(a) The WLA for the Mid-County Wastewater Treatment Plant is 4,245 lb/year of TN;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine DO dissolved oxygen and nutrient criteria which, based on the measured concentrations in the year 2011, will require a 15 % percent reduction of TN at sources contributing to exceedances of the criteria; and

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine DO dissolved oxygen and nutrient criteria which, based on the measured concentrations in the year 2011, will require a 15 % percent reduction of TN at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit;

(e) While the LA and WLA for TN have been expressed as the pounds allowed and 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 TN concentration. However, it is not the intent of the TMDL to abate natural background conditions.

(14) McKay Creek Tidal Segment. The TMDLs to address the low DO dissolved oxygen and nutrient impairments are an annual TN load of 15,563 lb/year and an annual 5-day BOD load of 32,505 lb/year and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and nutrient criterion, expressed as a chlorophyll a target, which, based on the calculated loadings from the 2002 – 2011 period, will require a 45 % percent reduction of TN and 45 % percent reduction of 5-day BOD at sources contributing to exceedances of the criteria; and

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criterion and nutrient criterion, expressed as a chlorophyll a target, which, based on the calculated loadings from the 2002 ‒ 2011 period, will require a 45 % percent reduction of TN and 45 % percent reduction of 5-day BOD at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit;

(e) While the LAs for TN and 5-day BOD 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 TN and 5-day BOD concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(15) Stevenson Creek Tidal Segment. The TMDLs Total Maximum Daily Loads for the Stevenson Creek tidal segment, to address nutrients and low DO dissolved oxygen, are 39,915 lbs/year of TN and 85,471 lbs/year of five-day CBOD carbonaceous biochemical oxygen demand (CBOD5) and are allocated as follows:

(a) The WLAs for the Marshall Street Wastewater Treatment Plant are 76,157 lbs/year of CBOD CBOD5 and 33,509 lbs/year of TN total nitrogen;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 permitting program address anthropogenic sources in the basin and are 9,314 lbs/year of CBOD CBOD5 and 6,406 lbs/year of TN total nitrogen;

(c) Achievement of the total WLAs for the TMDLs by combining the Marshall Street WWTP and the MS4 discharges is allowed without reallocation of the individual WLAs; and

(d) The LA for this TMDL is not applicable.; and,

(e) The Margin of Safety is Implicit.

(f) While the WLAs for CBOD5 and TN have been expressed as the load (in pounds) 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 CBOD5 and TN. However, it is not the intent of the TMDL to abate natural background conditions.

(16) Weeki Wachee Spring and Weeki Wachee River (Freshwater Segment). The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.28 mg/L at the spring vent of Weeki Wachee Spring and an in-stream annual arithmetic mean nitrate-nitrite concentration of 0.20 mg/L for the Weeki Wachee River (freshwater segment).

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which will require a 71.1 % percent reduction of nitrate-nitrite in Weeki Wachee Spring and a 77.3 % percent reduction of nitrate-nitrite in the freshwater segment of the Weeki Wachee River, based on mean concentrations from the 2004-2012 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream nitrate-nitrite concentrations meet the TMDL target, which will require a 71.1 % percent reduction of nitrate-nitrite in Weeki Wachee Spring and a 77.3 % percent reduction of nitrate-nitrite in the freshwater segment of the Weeki Wachee River, based on mean concentrations from the 2004-2012 period.

(d) The Margin of Safety is implicit.

(17) Kings Bay. The nutrient TMDL is an annual arithmetic mean TN concentration of 0.28 mg/L and an annual arithmetic mean TP concentration of 0.032 mg/L, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for surface water discharges subject to the Department’s NPDES MS4 permitting program is not applicable; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the estuary such that TN and TP concentrations meet the TMDL targets, which will require a 22 % percent reduction of TN and a 14 % percent reduction of TP, based on the mean concentrations from the 2004-2012 period.

(d) The Margin of Safety is implicit.

(18) Hunter Spring, House Spring, Idiot’s Delight Spring, Tarpon Spring, and Black Spring. The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L and an annual arithmetic mean orthophosphate concentration of 0.028 mg/L and are allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for surface water discharges subject to the Department’s NPDES MS4 permitting program is not applicable; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the spring such that nitrate-nitrite and orthophosphate concentrations meet the TMDL targets, which will require a 64 % percent reduction of nitrate-nitrite for Hunter Spring, a 53 % percent reduction of nitrate-nitrite for House Spring, a 26 % percent reduction of nitrate-nitrite and a 7 % percent reduction of orthophosphate for Idiot’s Delight Spring, a 21 % percent reduction of nitrate-nitrite and a 10 % percent reduction of orthophosphate for Tarpon Spring, and a 26 % percent reduction of nitrate-nitrite for Black Spring based on the mean concentrations from the 2004-2012 period.

(d) The Margin of Safety is implicit.

(19) Chassahowitzka Main Spring, Chassahowitzka #1 Spring and Crab Creek Spring. The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Chassahowitzka Main Spring, Chassahowitzka #1 Spring and Crab Creek Spring, and are allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLAs for discharges subject to the Department’s NPDES MS4 permitting program are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 62 % percent reduction of nitrate-nitrite for Chassahowitzka Main Spring, a 64 % percent reduction of nitrate-nitrite for Chassahowitzka #1 Spring, and a 64 % percent reduction of nitrate-nitrite for Crab Creek Spring, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 62 % percent reduction of nitrate-nitrite for Chassahowitzka Main Spring, a 64 % percent reduction of nitrate-nitrite for Chassahowitzka #1 Spring, and a 64 % percent reduction of nitrate-nitrite for Crab Creek Spring, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(20) Chassahowitzka River-Baird Creek. The nutrient TMDL is an annual arithmetic mean TN concentration of 0.25 mg/L, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-stream TN concentrations meet the TMDL target, which will require a 57 % percent reduction of TN, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream TN concentrations meet the TMDL target, which will require a 57 % percent reduction of TN, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(21) Baird #1 Spring and Ruth Spring. The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Baird #1 Main Spring and Ruth Spring, and are allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLAs for discharges subject to the Department’s NPDES MS4 permitting program are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 21 % percent reduction of nitrate-nitrite for Baird #1 Spring and a 67 % percent reduction of nitrate-nitrite for Ruth Spring, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 21 % percent reduction of nitrate-nitrite for Baird #1 Spring and a 67 % percent reduction of nitrate-nitrite for Ruth Spring, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(22) Beteejay Spring. The nutrient TMDL is an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Beteejay Spring, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 49 % percent reduction of nitrate-nitrite, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 49 % percent reduction of nitrate-nitrite, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(23) Homosassa #1 Spring, Homosassa #2 Spring, Homosassa #3 Spring, Pumphouse Springs and Trotter Springs. The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Homosassa #1 Spring, Homosassa #2 Spring, Homosassa #3 Spring, Pumphouse Springs and Trotter Springs, and are allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLAs for discharges subject to the Department’s NPDES MS4 permitting program are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 65 % percent reduction of nitrate-nitrite for Homosassa #1 Spring, a 63 % percent reduction of nitrate-nitrite for Homosassa #2 Spring, a 66 % percent reduction of nitrate-nitrite for Homosassa #3 Spring, a 65 % percent reduction of nitrate-nitrite for Pumphouse Springs, and a 68 % percent reduction of nitrate-nitrite for Trotter Springs, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 65 % percent reduction of nitrate-nitrite for Homosassa #1 Spring, a 63 % percent reduction of nitrate-nitrite for Homosassa #2 Spring, a 66 % percent reduction of nitrate-nitrite for Homosassa #3 Spring, a 65 % percent reduction of nitrate-nitrite for Pumphouse Springs, and a 68 % percent reduction of nitrate-nitrite for Trotter Springs, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(24) Bluebird Springs. The nutrient TMDL is an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Bluebird Spring, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 69 % percent reduction of nitrate-nitrite, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 69 % percent reduction of nitrate-nitrite, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(25) Hidden River Main Spring and Hidden River #2 Spring. The nutrient TMDLs are an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Hidden River Main Spring and Hidden River #2 Spring, and are allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLAs for discharges subject to the Department’s NPDES MS4 permitting program are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 76 % percent reduction of nitrate-nitrite for Hidden River Main Spring and a 75 % percent reduction of nitrate-nitrite for Hidden River #2 Spring, based on mean concentrations from the 2004 – 2013 period; and.

(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 76 % percent reduction of nitrate-nitrite for Hidden River Main Spring and a 75 % percent reduction of nitrate-nitrite for Hidden River #2 Spring, based on mean concentrations from the 2004 – 2013 period.

(d) The Margin of Safety is implicit.

(26) Magnolia-Aripeka Springs Group. The nutrient TMDL is an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vents in the Magnolia-Aripeka Springs Group, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 77 % percent reduction of nitrate-nitrite based on mean concentrations from the 2004 – 2014 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 77 % percent reduction of nitrate-nitrite based on mean concentrations from the 2004 – 2014 period.

(d) The Margin of Safety is implicit.

(27) Jenkins Creek Spring. The nutrient TMDL is an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vent of Jenkins Creek Spring, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 73 % percent reduction of nitrate-nitrite for Jenkins Creek Spring, based on mean concentrations from the 2004 – 2014 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 73 % percent reduction of nitrate-nitrite for Jenkins Creek Spring, based on mean concentrations from the 2004 – 2014 period.

(d) The Margin of Safety is implicit.

(28) Wilderness-Mud-Salt Springs Group. The nutrient TMDL is an annual arithmetic mean nitrate-nitrite concentration of 0.23 mg/L at the spring vents in the Wilderness-Mud-Salt Springs Group, and is allocated as follows:

(a) The WLA for NPDES wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 permitting program is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 62 % percent reduction of nitrate-nitrite based on mean concentrations from the 2004 – 2014 period; and.

(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-spring nitrate-nitrite concentrations meet the TMDL target, which will require a 62 % percent reduction of nitrate-nitrite based on mean concentrations from the 2004 – 2014 period.

(d) The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended 11-14-12, 6-7-13, 11-25-13, 6-18-14, 6-4-15, 12-11-16, _____.

 

SOUTHEAST FLORIDA TMDLs

 

62-304.700 Lake Okeechobee Basin TMDLs. Total Maximum Daily Loads in the Southeast Florida District.

Lake Okeechobee.

(1) The TMDL Total Maximum Daily Load for TP total phosphorus for Lake Okeechobee shall be 140 metric tons, including atmospheric deposition. Attainment of the TMDL shall be calculated using a 5-year rolling average of the monthly loads calculated from measured flow and concentration values.

(a) Implementation shall be in accordance with Section 373.4595, F.S.

(b) Management strategies shall be implemented in a phased approach.

(c) This TMDL shall be re-evaluated and, if appropriate, either increased or decreased through subsequent rulemaking as new research and data become available, but no later than 5 years from the effective date of this rule.

(2) The TMDL for Lake Okeechobee is allocated to the sum of the nonpoint source inflows to the Lake.

(3) For purposes of this TMDL, nonpoint sources of phosphorus shall be controlled in accordance with the provisions of Sections 403.067 and 373.4595, F.S. Nonpoint sources of phosphorus that comply with the provisions of Section 373.4595, F.S., shall be deemed to be in compliance with this TMDL.

(4) For purposes of this subsection, all existing direct inflows into Lake Okeechobee shall be considered to be nonpoint sources.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 373.4595, 403.061, 403.062, 403.067 FS. History–New 5-24-01, Amended _____.

 

62-304.705 St. Lucie River Basin TMDLs.

(1) St. Lucie Estuary (Lower & Middle Estuary). WBID 3193: The Total Maximum Daily Loads (TMDLs) for the St. Lucie Estuary, based on data in the period from 1996 through 2005, are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen at Roosevelt Bridge and are allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program are a 21.4 % reduction of TN total nitrogen and a 41.3 % reduction of TP total phosphorus; and

(c) The Load Allocations (LAs) for nonpoint sources are a 21.4 % reduction of TN total nitrogen and a 41.3 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(2) North Fork St. Lucie River (Freshwater). WBID 3194: The TMDLs for the North St. Lucie (Freshwater) are to achieve 0.081 mg/L TP total phosphorus, 0.72 mg/L TN total nitrogen, and 2.0 mg/L BOD biological oxygen demand for this segment. Based on data in the period from 1996 to 2005, the cumulative load from all sources is 140,134 lbs/year TN total nitrogen, 15,765 lbs/year TP total phosphorus and 2.0 mg/L BOD biological oxygen demand allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 25.0 % reduction of TN total nitrogen, 42.2 % reduction of TP total phosphorus, and 74.0 % reduction of BOD biological oxygen demand; and

(c) The LAs for nonpoint sources are 25.0 % reduction of TN total nitrogen, 42.2 % reduction of TP total phosphorus, and 74.0 % reduction of BOD biological oxygen demand.; and,

(d) The Margin of Safety is implicit.

(3) North Fork St. Lucie Estuary (Estuarine North Fork). WBID 3194B: The TMDLs for the North Fork St. Lucie Estuary (Estuarine North Fork) are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen in this estuary segment. Based on data in the period from 1996 to 2005, the cumulative load from all sources is 103,174 lbs/year TN total nitrogen and 11,672 lbs/year TP total phosphorus allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 28.8 % reduction of TN total nitrogen and 58.1 % reduction of TP total phosphorus; and

(c) The LAs for nonpoint sources are 28.8 % reduction of TN total nitrogen and 58.1 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(4) C-24 Canal. WBID 3197: The TMDLs for the C-24 Canal are to achieve 0.081 mg/L TP total phosphorus, 0.72 mg/L TN total nitrogen, and 2.0 mg/L BOD biological oxygen demand for the canal segment. Based on data in the period from 1996 to 2005, the cumulative load from all sources is 348,957 lbs/year TN total nitrogen, 39, 258 lbs/year TP total phosphorus and 2.0 mg/L BOD biological oxygen demand allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 51.8 % reduction of TN total nitrogen, 72.2 % reduction of TP total phosphorus, and 33.3 % reduction of BOD biological oxygen demand; and

(c) The LAs for nonpoint sources are 51.8 % reduction of TN total nitrogen, 72.2 % reduction of TP total phosphorus, and 33.3 % reduction of BOD biological oxygen demand.; and,

(d) The Margin of Safety is implicit.

(5) C-23 Canal. WBID 3200: The TMDLs for the C-23 Canal are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen in the canal segment. Based on data in the period from 1996 through 2005, the cumulative load from all sources is 242,202 lbs/year TN total nitrogen and 27,248 lbs/year TP total phosphorus allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 51.7 % reduction of TN total nitrogen and 78.6 % reduction of TP total phosphorus; and

(c) The LAs for nonpoint sources are 51.7 % reduction of TN total nitrogen and 78.6 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(6) South Fork St. Lucie Estuary. WBID 3210: The TMDLs for the South Fork St. Lucie Estuary are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen in this estuary segment. Based on data in the period from 1996 through 2005, the cumulative load from all sources is 24,463 lbs/year TN total nitrogen and 2,752 lbs/year TP total phosphorus allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 38.4 % reduction of TN total nitrogen and 57.2 % reduction of TP total phosphorus; and

(c) The LAs for nonpoint sources are 38.4 % reduction of TN total nitrogen and 57.2 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(7) South Fork St. Lucie River. WBID 3210A: The TMDLs for the South Fork St. Lucie River are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen in this river segment. Based on data in the period from 1996 through 2005, the cumulative load from all sources is 90,471 lbs/year TN total nitrogen and 10,178 lbs/year TP total phosphorus allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 47.1 % reduction of TN total nitrogen and 61.8 % reduction of TP total phosphorus; and

(c) The LAs for nonpoint sources are 47.1 % reduction of TN total nitrogen and a 61.8 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(8) Bessey Creek. WBID 3211: The TMDLs for Bessey Creek are to achieve 0.081 mg/L TP total phosphorus and 0.72 mg/L TN total nitrogen in the creek segment. Based on data in the period from 2000 through 2005, the cumulative load from all sources is 29,981 lbs/year TN total nitrogen and 3,373 lbs/year TP total phosphorus allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is 23.9 % reduction of TN total nitrogen and 51.2 % reduction of TP total phosphorus; and

(c) The LAs for nonpoint sources is 23.9 % reduction of TN total nitrogen and 51.2 % reduction of TP total phosphorus.; and,

(d) The Margin of Safety is implicit.

(9) C-44 Canal. WBID 3218: The TMDLs for the C-44 Canal are to achieve 0.081 mg/L TP total phosphorus, 0.72 mg/L TN total nitrogen, and 2.0 mg/L BOD biological oxygen demand in this canal segment. Based on data in the period from 1996 through 2005, the cumulative load from all sources is 242,929 lbs/year TN total nitrogen, 27,330 lbs/year TP total phosphorus and 2.0 mg/L BOD biological oxygen demand allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLAs for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program are 51.2 % reduction of TN total nitrogen, 55.0 % reduction of TP total phosphorus, and 69.7 % reduction of BOD biological oxygen demand; and

(c) The LAs for nonpoint sources are 51.2 % reduction of TN total nitrogen, 55.0 % reduction of TP total phosphorus, and 69.7 % reduction of BOD biological oxygen demand.; and,

(d) The Margin of Safety is implicit.

(10) St. Lucie River (North Fork). The bacteriological TMDL for the St. Lucie River (North Fork) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 to 2007 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(11) Tenmile Creek. The bacteriological TMDL for the Tenmile Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 and 2007 period, will require a 81 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2005 and 2007 period, will require a 81 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 3-26-09, Amended 5-14-12, _____.

 

62-304.710 Loxahatchee River Basin TMDLs.

(1) Southwest Fork Loxahatchee. The bacteriological TMDL for the Southwest Fork Loxahatchee is 43 counts/100mL for fecal coliform, and is allocated as follows:

(2) The wasteload allocation (WLA) for the Loxahatchee Environmental Control District (Permit #FL0034649) is its National Pollutant Discharge Elimination System (NPDES) permit conditions;

(3) The WLA for discharges subject to the Department’s NPDES MS4 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 2001 to 2007 period, will require a 91 % percent reduction of sources contributing to exceedances of the criteria; and

(4) 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 2001 to 2007 period, will require a 91 % percent reduction of sources contributing to exceedances of the criteria.; andm

(5) The Margin of Safety is implicit.

(6) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class II 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 5-14-12, Amended _____.

 

62-304.715 Lake Worth Lagoon Basin TMDLs.

(1) E-1 Canal. The bacteriological TMDL for E-1 Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(2) The wasteload allocation (WLA) for wastewater sources is not applicable;.

(3) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentration meets the fecal coliform criteria which, based on the measured concentrations from the 2003 to 2008 period, will require a 94 % percent reduction of sources contributing to exceedances of the criteria; and.

(4) The load allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentration meets the fecal coliform criteria which, based on the measured concentrations from the 2003 to 2008 period, will require a 94 % percent reduction of sources contributing to exceedances of the criteria.

(5) The Margin of Safety is implicit.

(6) 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 5-14-12, Amended _____.

 

62-304.725 Southeast Coast Basin TMDLs.

(1) Wagner Creek Fecal Coliform TMDL. The bacteriological fecal coliform TMDL Total Maximum Daily Load for Wagner Creek is 400 counts/100 mL, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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 1997 to 2006 period, will require an 86 % reduction at sources contributing to exceedances of the criteria;

(b) 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 1997 to 2006 period, will require an 86 % reduction at sources contributing to exceedances of the criteria; and,

(c) The Margin of Safety is implicit.

(d) 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 coliform concentrations. However, it is not the intent of these TMDLs to abate natural background conditions.

(2) C-14 (Cypress Creek Canal). The bacteriological TMDL for C-14 (Cypress Creek Canal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 to 2010 period, will require a 22 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 to 2010 period, will require a 22 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(3) C-13 West (Middle River Canal). The bacteriological TMDL for the C-13 West (Middle River Canal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 22 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 22 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(4) C-13 East (Middle River Canal). The bacteriological TMDL for the C-13 East (Middle River Canal) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 67 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(5) C-12. The bacteriological TMDL for the C-12 is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 52 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 52 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(6) New River (North Fork). The bacteriological TMDL for the New River (North Fork) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 94 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 94 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(7) New River Canal (South). The bacteriological TMDL for the New River Canal (South) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 69 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(8) North New River. The bacteriological TMDL for the North New River is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 31 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 31 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(9) Dania Cut-off Canal. The bacteriological TMDL for the Dania Cutoff Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 78 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 78 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(10) South New River Canal (C-11). The bacteriological TMDL for the South New River Canal (C-11) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 31 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 31 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(11) C-11 East. The bacteriological TMDL for the C-11 East is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 93 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 93 % percent reduction of sources contributing to exceedances of the criteri.

(d) The Margin of Safety is implicit.

(e) 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.

(12) Las Olas Isles Finger Canal System. The bacteriological TMDL for the Las Olas Isles Finger Canal System is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(13) C-8 (Biscayne) Canal. The bacteriological TMDL for the C-8 (Biscayne) Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(14) C-7 (Little River) Canal. The bacteriological TMDL for the C-7 (Little River) Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(15) C-6 (Miami River). The bacteriological TMDL for the C-6 (Miami River) is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 66 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(16) C-6 (Miami River) Lower Segment. The bacteriological TMDL for the C-6 (Miami River) Lower Segment is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 80 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 80 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

(17) C-6 (Miami) Canal. The bacteriological TMDL for the C-6 (Miami) Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2003 and 2010 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria; and.

(c) 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 2003 and 2010 period, will require a 40 % percent reduction of sources contributing to exceedances of the criteria.

(d) The Margin of Safety is implicit.

(e) 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.

Rulemaking Authority 403.061, 403.067 FS. Law implemented 403.061, 403.062, 403.067 FS. History–New 5-1-07, Amended 5-14-12, _____.

 

62-304.726 Pompano Canal TMDL.

(1) Pompano Canal. The TMDL Total Maximum Daily Load for the Pompano Canal is 11,590.98 pounds per year (lbs/yr) of Total Nitrogen (TN) and 923.66 pounds per year (lbs/yr) of Total Phosphorus (TP), and is allocated as follows:

(2)(1) There are no permitted NPDES National Pollutant Discharge Elimination System wastewater discharges to the Pompano Canal. As such, the Wasteload Allocation (WLA) for wastewater discharges is not applicable;

(3)(2) The WLA Wasteload Allocation for discharges subject to the Department’s NPDES MS4 National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 15.8 % percent reduction of current anthropogenic Total Nitrogen (TN) loading and a 13.6 % percent reduction of current anthropogenic Total Phosphorus (TP) loading, based on measured concentrations from the 1999 to 2002 time period; and

(4)(3) The LA Load Allocation for nonpoint sources is a 15.8 % percent reduction of current anthropogenic Total Nitrogen (TN) loading and a 13.6 % percent reduction of current anthropogenic Total Phosphorus (TP) loading based, on measured concentrations from the 1999 to 2002 time period.; and,

(4) The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-3-08, Amended _____.

 

62-304.735 Everglades Basin TMDLs.

(1) West Palm Beach Canal Fecal Coliform TMDL. The bacteriological TMDL for the West Palm Beach Canal is 400 counts/100mL for fecal coliform, and is allocated as follows:

(2)(a) The wasteload allocation (WLA) for wastewater sources is not applicable;

(3)(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program is not applicable; and

(4)(c) 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 2005, 2006, and 2008, will require a 62 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(2) While the LA for fecal coliform has been expressed as the percent reduction needed to attain the applicable Class III criteria, it is the combined reductions from all anthropogenic 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.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 7-30-13, Amended _____.

 

SOUTH FLORIDA TMDLs

 

62-304.800 Caloosahatchee River Basin TMDLs.

(1) Nine Mile Canal. Fecal Coliform Total Maximum Daily Load (TMDL) for Nine Mile Canal. The bacteriological fecal coliform TMDL for Nine Mile Canal is 400 counts/100 mL for fecal coliform, and is allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin to result in a 36 % percent reduction of in-stream fecal coliform concentrations, based on the measured concentrations from the 1997 to June 30, 2004 period; and

(c) The Load Allocation (LA) for nonpoint sources is a 36 % percent reduction of in-stream fecal coliform concentrations, based on the measured concentrations from the 1997 to June 30, 2004 period.; and,

(d) The Margin of Safety is implicit.

(e) 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 with the understanding that the combined reductions from anthropogenic point and nonpoint sources should result in the required reduction of in-stream fecal coliform concentrations. However, it is not the intent of this TMDL to abate natural background conditions.

(2) Tidal Calooshatchee Esturay Downstram of S-79. The TMDL for the Tidal Caloosahatchee estuary downstream of the S-79 Franklin Lock is 9,086,094 pounds of Total Nitrogen (TN) per year, which represents, based on model simulated flows and concentrations from 2003 through 2005, a 22.8 % reduction. This load reduction will be allocated as follows:

(a) The WLA for point sources discharging to the estuary will remain unchanged from the permits currently in effect as of the date of this rule;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program will have a 22.8 % load reduction relative to its overall contribution to the anthropogenic load;

(c) The LA for nonpoint sources downstream of the S-77 lock will have a 22.8 % load reduction relative to the contribution to the overall anthropogenic load; and

(d) The mMargin of sSafety is both implicit and explicit (in the form of an added 3 % reduction in TN total nitrogen).

(3) Trout Creek. The bacteriological TMDL for Trout Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable.

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2002 to 2010 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2002 to 2010 period, will require a 58 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(4) Townsend Canal. The dissolved oxygen (DO) TMDL for Townsend Canal is a seven-year rolling average of annual loads of 300,564 pounds per year (lbs/year) TN, 28,749 lbs/year Total Phosphorus (TP), and 673,151 lbs/year biochemical oxygen demand (BOD), and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 37 % reduction of TN (calculated from 480,366 lbs/year), 38 % reduction of TP (calculated from 46,063 lbs/year), and a 37 % reduction of BOD (calculated from 1,077,001 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period; and,

(c) The LA for nonpoint sources is a 37 % reduction of TN (calculated from 480,366 lbs/year), a 38 % reduction of TP (calculated from 46,063 lbs/year), and a 37 % reduction of BOD (calculated from 1,077,001 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period.

(d) The Margin of Safety is implicit.

(e) While the LA for TN, TP and BOD have been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(5) Long Hammock Creek Basin. The DO TMDL for Canal 3, the 42-Foot Canal, and the Hilliard Canal within the Long Hammock Creek Basin is a seven-year rolling average of annual loads of 330,381 lbs/year TN, 25,384 lbs/year TP, and 773,946 lbs/year BOD, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 42 % reduction of TN (calculated from 569,554 lbs/year), a 42 % reduction of TP (calculated from 43,774 lbs/year), and a 42 % reduction of BOD (calculated from 1,334,760 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period; and,

(c) The LA for nonpoint sources is a 42 % reduction of TN (calculated from 569,554 lbs/year), a 42 % reduction of TP (calculated from 43,774 lbs/year), and a 42 % reduction of BOD (calculated from 1,334,760 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN, TP and BOD have been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(6) Lake Hicpochee. The DO TMDL for Lake Hicpochee is a seven-year rolling average of annual loads of 4,175,743 lbs/year TN, 227,423 lbs/year TP, and 5,768,701 lbs/year BOD, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 2 % reduction of TN (calculated from 4,282,254 lbs/year), a 2 % reduction of TP (calculated from 232,916 lbs/year), and a 3 % reduction of BOD (calculated from 5,927,159 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period; and.

(c) The LA for nonpoint sources is a 2 % reduction of TN (calculated from 4,282,254 lbs/year), a 2 % reduction of TP (calculated from 232,916 lbs/year), and a 3 % reduction of BOD (calculated from 5,927,159 lb/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period., and

(d) The Margin of Safety is implicit.

(e) While the LA for TN, TP and BOD have been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(7) C-19 Canal. The DO TMDL for C-19 Canal is a seven-year rolling average of annual loads of 78,114 lbs/year TN, 5,167 lbs/year TP, and 186,354 lbs/year BOD, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 48 % reduction of TN (calculated from 150,963 lbs/year), a 48 % reduction of TP (calculated from 9,896 lbs/year), and a 48 % reduction of BOD (calculated from 361,071 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period; and,

(c) The LA for nonpoint sources is a 48 % reduction of TN (calculated from 150,963 lbs/year), a 48 % reduction of TP (calculated from 9,896 lbs/year), and a 48 % reduction of BOD (calculated from 361,071 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period.

(d) The Margin of Safety is implicit.

(e) While the LA for TN, TP and BOD have been expressed as the percent reduction needed to attain the applicable Class III DO criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(8) S-4 Basin. The DO TMDL for the Disston Main Canal, Flaghole Canal, L-1 Canal, Ninemile Canal and Industrial Canal within the S-4 Basin is a seven-year rolling average of annual loads of 430,844 lbs/year TN, 28,622 lbs/year TP, and 664,946 lbs/year BOD, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;,

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 23 % reduction of TN (calculated from 559,666 lbs/year), a 27 % reduction of TP (calculated from 39,269 lbs/year), and a 28 % reduction of BOD (calculated from 931,071 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period; and,

(c) The LA for nonpoint sources is a 23 % reduction of TN (calculated from 559,666 lbs/year), 27 % reduction of TP (calculated from 39,269 lbs/year), and a 28 % reduction of BOD (calculated from 931,071 lbs/year), which are based on the highest seven-year rolling average of annual loads from the 1996-2014 period.

(d) The Margin of Safety is implicit.

(e) While the LA for TN, TP and BOD have been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 8-3-06, Amended 8-13-09, 8-26-10, 8-13-19, _____.

 

62-304.805 Charlotte Harbor Basin TMDLs.

(1) Coral Creek – East Branch. The Total Maximum Daily Loads (TMDLs) to address the low DO dissolved oxygen condition for Coral Creek – East Branch are 0.74 mg/L total nitrogen (TN), 0.044 mg/L total phosphorus (TP), and 2.0 mg/L five-day BOD biochemical oxygen demand (BOD5), and are allocated as follows:

(a) The Wasteload Allocation (WLA) for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria, based on the measured concentrations from the January 2007 to December 2007 period, will require a 31 % percent reduction of TN, a 36 % percent reduction of TP, and a 33 % percent reduction of BOD BOD5 at sources contributing to exceedances of the criteria; and

(c) The Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the DO dissolved oxygen criteria which, based on the measured concentrations from the January 2007 to December 2007 period, will require a 31 % percent reduction of TN, a 36 % percent reduction of TP, and a 33 % percent reduction of BOD BOD5 at sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP have been expressed as the percent reduction 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 TN and TP concentrations. However, it is not the intent of the TMDL to abate natural background conditions.

(2) Gottfried Creek. The bacteriological TMDL for Gottfried Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 to 2008 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 to 2008 period, will require a 74 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) 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.

(3) North Prong of Alligator Creek. The bacteriological TMDL for the North Prong of Alligator Creek is 400 counts/100mL for fecal coliform, and is allocated as follows:

(a) The WLA for wastewater sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 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 2005 and 2007 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria; and

(c) 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 2005 and 2007 period, will require a 72 % percent reduction of sources contributing to exceedances of the criteria.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for fecal coliform have been expressed as the percent reductions needed to attain the applicable Class I 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.

(4) Sanibel Slough West. The nutrient TMDL for Sanibel Slough West is a three-year average of annual loads of 1,903 kilograms per year (kg/year) TN and 241 kg/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 11 µg/L not to be exceed more than once in any consecutive three-year period, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 26 % reduction of TN and a 34 % reduction of TP from the 2007-2013 period; and

(c) The Load Allocation (LA) for nonpoint sources is a 26 % reduction of TN and a 34 % reduction of TP based on average loads from the 2007-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

(5) Sanibel Slough East. The nutrient TMDL for Sanibel Slough East is a three-year average of annual loads of 1,091 kg/year TN and 123 kg/year TP, which are intended to achieve an AGM annual geometric mean chlorophyll a concentration of 21 µg/L not to be exceed more than once in any consecutive three-year period, and is allocated as follows:

(a) The WLA for wastewater point sources is not applicable;

(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 54 % reduction of TN and a 74 % reduction of TP based on average loads from the 2007-2013 period; and

(c) The LA for nonpoint sources is a 54 % reduction of TN and a 74 % reduction of TP based on average loads from the 2007-2013 period.; and,

(d) The Margin of Safety is implicit.

(e) While the LA and WLA for TN and TP has been expressed as the percent reduction needed to attain the applicable Class III nutrient criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the restoration of nutrient conditions in the impaired waterbody. However, it is not the intent of this TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 10-15-09, Amended 8-26-10, 10-18-17, _____.

 

62-304.810 Everglades West Coast Basin TMDLs.

(1) Estero Bay Planning Unit.

(a) Hendry Creek Marine TMDLs.

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

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

(b)b. The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES MS4) 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; and,

(c)c. 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.,

d. The Margin of Safety is implicit; and,

e. 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.

(2)2. Hendry Creek Marine Dissolved Oxygen TMDL. The TMDLs Total Maximum Daily Loads to address the low DO dissolved oxygen condition is an annual median Total Nitrogen (TN) of 0.6 mg/L in Hendry Creek Marine, and is allocated as follows:

(a)a. The WLA for wastewater point sources is not applicable;,

(b)b. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 44 % percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period; and,

(c)c. 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,

d. The Margin of Safety is implicit.

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

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 44 % percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period; and,

(c)3. 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,

4. The Margin of Safety is implicit.

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

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 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; and,

(c)3. 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,

4. The Margin of Safety is implicit.

(2) Southwest Coast Planning Unit.

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

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 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; and,

(c)3. 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.,

4. The Margin of Safety is implicit; and,

5. 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.

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

(a)1. The WLA for wastewater point sources is not applicable;,

(b)2. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 29 % percent reduction of current anthropogenic TN loading based on measured concentrations from the 2000 to 2007 period; and,

(c)3. 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,

4. The Margin of Safety is implicit.

(7)(c) Lake Trafford TMDLs.

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

(a)a. The WLA for wastewater point sources is not applicable;,

(b)b. The WLA for discharges subject to the Department’s NPDES MS4 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; and,

(c)c. 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,

d. The Margin of Safety is implicit.

(8)2. 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:

(a)a. The WLA for wastewater point sources is not applicable;,

(b)b. The WLA for discharges subject to the Department’s NPDES MS4 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; and,

(c)c. 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,

d. The Margin of Safety is implicit.

(9)3. 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:

(a)a. The WLA for wastewater point sources is not applicable;,

(b)b. The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program is a 60 % percent reduction of current anthropogenic TN loading, based on measured concentrations from the 2000 to 2007 period; and,

(c)c. 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,

d. The Margin of Safety is implicit.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 10-21-08, Amended _____.

 

STATEWIDE TMDLs

 

62-304.900 Statewide TMDLs.

The statewide mercury (total) TMDL for all fresh and marine waters in Florida is allocated as follows:

(1) The Wasteload Allocation (WLA) for all industrial and domestic wastewater sources holding NPDES permits in Florida, other than those sources covered under subsection 62-304.900(2), F.A.C., is 23 kg/yr mercury (total). Pursuant to paragraph 62-620.100(3)(m), F.A.C., domestic wastewater facilities with a permitted capacity of greater than one million gallons per day and all industrial discharges, other than once-through cooling waters at industrial wastewater facilities and those sources covered under subsection 62-304.900(2), F.A.C., that demonstrate quantifiable mercury (total) levels in their effluent (using clean techniques, such as EPA Method 1631e) will be required to prepare and implement a mercury minimization plan addressing sources of mercury (total) within their jurisdication;

(2) The WLA for discharges subject to the Department’s NPDES MS4 Municipal Stormwater Permitting Program or for other discharges primarily treating stormwater and not expected to add mercury (total) to their discharge, is generally not applicable; however, a permittee or co-permittee may be required to reduce mercury loads if sources of mercury (total) under the direct control of that permittee or co-permittee are found to exist; and

(3) The Load Allocation (LA) for nonpoint sources is to address anthropogenic sources in the basin is an 86 % reduction of mercury (total) from atmospheric sources.; and,

(4) The Margin of Safety is implicit.

(5) While the LA for mercury has been expressed as the percent reduction needed to attain the applicable narrative criteria, it is the combined reductions from both anthropogenic point and nonpoint sources that will result in the required reductions. However, it is not the intent of the TMDL to abate natural background conditions.

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New 6-7-13, Amended _____.

 

 

NAME OF PERSON ORIGINATING PROPOSED RULE: Julie Espy, Director, Division of Environmental Assessment and Restoration

NAME OF AGENCY HEAD WHO APPROVED THE PROPOSED RULE: Noah Valenstein, Secretary

DATE PROPOSED RULE APPROVED BY AGENCY HEAD: February 17, 2021

DATE NOTICE OF PROPOSED RULE DEVELOPMENT PUBLISHED IN FAR: March 29, 2019