62-304.505. Middle St. Johns River Basin TMDLs  


Effective on Thursday, January 30, 2020
  • 1(1) Lake Jesup.

    4(a) Total Nitrogen. The Total Maximum Daily Load for Total Nitrogen (TN) is 247.3 tons/year, and is allocated as follows:

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

    352. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 50 percent reduction of current Total Nitrogen loading,

    643. The Load Allocation for nonpoint sources is 247.3 tons/year of TN; and,

    774. The Margin of Safety is implicit.

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

    1041. The Wasteload Allocation for wastewater point sources is not applicable,

    1152. 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,

    1433. The Load Allocation for nonpoint sources is 19.0 tons/year of TP; and,

    1564. The Margin of Safety is implicit.

    163(2) Crane Strand Drain.

    167(a) Total Nitrogen. The Total Maximum Daily Load for Total Nitrogen (TN) is 13.5 tons/year, and is allocated as follows:

    1871. The Wasteload Allocation for wastewater point sources is not applicable,

    1982. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 29 percent reduction of current TN loading,

    2263. The Load Allocation for nonpoint sources is 13.5 tons/year of TN; and,

    2394. The Margin of Safety is implicit.

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

    2651. The Wasteload Allocation for wastewater point sources is not applicable,

    2762. 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,

    3043. The Load Allocation for nonpoint sources is 31.3 tons/year of BOD; and,

    3174. The Margin of Safety is implicit.

    324(c) Fecal and Total Coliform. The Total Maximum Daily Loads are an annual median of 2.06 x 1034211 343colonies/day for fecal coliform and an annual median of 1.24 x 1035512 356colonies/day for total coliform, and are allocated as follows:

    3651. The Wasteload Allocation for wastewater point sources is not applicable,

    3762. 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,

    4253. 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,

    4524. The Margin of Safety is implicit; and,

    4605. 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.

    526(3) Fecal and Total Coliform TMDL for Crane Strand. The Total Maximum Daily Loads are an annual median of 2.06 x 1054811 549colonies/day for fecal coliform and an annual median of 1.24 x 1056112 562colonies/day for total coliform, and are allocated as follows:

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

    582(b) 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;

    631(c) 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;

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

    666(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.

    732(4) Long Branch.

    735(a) Fecal and Total Coliform. The Total Maximum Daily Loads are an annual median of 4.64 x 1075310 754colonies/day for fecal coliform and an annual median of 2.79 x 1076611 767colonies/day for total coliform, and are allocated as follows:

    7761. The Wasteload Allocation for wastewater point sources is not applicable,

    7872. 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 32 percent reduction of in-stream fecal coliform loadings and a 22 percent reduction of in-stream total coliform loadings,

    8363. The 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,

    8634. The Margin of Safety is implicit; and,

    8715. 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.

    924(b) Biochemical Oxygen Demand. The Total Maximum Daily Load for BOD is 14.96 tons per year, and is allocated as follows:

    9451. The Wasteload Allocation for wastewater point sources is not applicable,

    9562. The Wasteload Allocation for discharges subject to the Department’s National Pollutant Discharge Elimination System Municipal Stormwater Permitting Program is a 10 percent reduction of current BOD loading in the tributaries to Long Branch,

    9903. The Load Allocation for nonpoint sources is a 10% reduction of current BOD loading in the tributaries to Long Branch; and,

    10124. The Margin of Safety is implicit.

    1019(c) Total Phosphorus. The Total Maximum Daily Load for TP is 0.74 tons per year, and is allocated as follows:

    10391. The Wasteload Allocation for wastewater point sources is not applicable,

    10502. 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,

    10843. The Load Allocation for nonpoint sources is a 30% reduction of current TP loading in the tributaries to Long Branch; and,

    11064. The Margin of Safety is implicit.

    1113(d) Total Nitrogen. The Total Maximum Daily Load for TN is 5.20 tons per year, and is allocated as follows:

    11331. The Wasteload Allocation for wastewater point sources is not applicable,

    11442. 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,

    11793. The Load Allocation for nonpoint sources is a 17% reduction of current TN loading in the main channel of Long Branch; and,

    12024. The Margin of Safety is implicit.

    1209(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.

    1257(6) Gee Creek. The fecal coliform TMDL for Gee Creek is 5.63 x 10127110 1272counts/day, and is allocated as follows:

    1278(a) The WLA for wastewater sources is not applicable;

    1287(b) The WLA for discharges subject to the Department’s National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2001 to 2008 period, will require a 79 percent reduction of sources contributing to exceedances of the criteria;

    1349(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;

    1398(d) The Margin of Safety is implicit; and,

    1406(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.

    1467(7) Lake Harney. The TMDLs to address the low dissolved oxygen and nutrient impairments are 1,522 tons/year of total nitrogen (TN) and 109 tons/year of total phosphorus (TP), and are allocated as follows:

    1501(a) The WLA for wastewater sources is not applicable;

    1510(b) The WLAs for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    1576(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    1634(d) The Margin of Safety is implicit; and,

    1642(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.

    1706(8) Little Econlockhatchee River. The fecal coliform TMDL for the Little Econlockhatchee River is 6.26 x 10172311 1724counts/day, and is allocated as follows:

    1730(a) The WLA for the Iron Bridge Regional Water Reclamation Facility (FL0037966) is that it must meet its NPDES permit limits;

    1751(b) The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2001 to 2008 period, will require a 57 percent reduction of sources contributing to exceedances of the criteria;

    1808(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;

    1857(d) The Margin of Safety is implicit; and,

    1865(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.

    1926(9) Smith Canal. The fecal coliform TMDL for Smith Canal is 400 counts/100mL, and is allocated as follows:

    1944(a) The WLA for wastewater sources is not applicable;

    1953(b) The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 2001 to 2008 period, will require a 67 percent reduction of sources contributing to exceedances of the criteria;

    2010(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;

    2059(d) The Margin of Safety is implicit; and,

    2067(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.

    2128(10) Smith Canal. The TMDL to address the low dissolved oxygen impairment for Smith Canal is 1.95 tons/year of TP, and is allocated as follows:

    2153(a) The WLA for wastewater sources is not applicable;

    2162(b) The WLA for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2219(c) The LA for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2268(d) The Margin of Safety is implicit; and,

    2276(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.

    2336(11) Soldier Creek. The fecal coliform TMDL for Soldier Creek is 2.87 x 10235010 2351counts/day, and is allocated as follows:

    2357(a) The WLA for wastewater sources is not applicable;

    2366(b) The WLA for discharges subject to the Department’s NPDES 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;

    2421(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;

    2470(d) The Margin of Safety is implicit; and,

    2478(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.

    2539(12) St. Johns River above Lake Monroe and Lake Monroe. The TMDLs 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:

    2576(a) The WLA for wastewater sources is not applicable;

    2585(b) The WLAs for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2650(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2707(d) The Margin of Safety is implicit; and,

    2715(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.

    2779(13) St. Johns River above Wekiva River. The TMDLs 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:

    2812(a) The WLAs for the Sanford/North Wastewater Treatment Facility (FL0020141) are 9 tons/year of TN and 1 ton/year of TP;

    2832(b) The WLAs for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2898(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    2956(d) The Margin of Safety is implicit; and,

    2964(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.

    3028(14) St. Johns River Downstream of Lake Harney and St. Johns River above Lake Jesup. The TMDLs 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:

    3070(a) The WLA for wastewater sources is not applicable;

    3079(b) The WLAs for discharges subject to the Department’s NPDES Municipal Stormwater Permitting Program to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    3145(c) The LAs for nonpoint sources to address anthropogenic sources in the basin such that in-stream concentrations meet the 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;

    3203(d) The Margin of Safety is implicit; and,

    3211(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.

    3275(15) Volusia Blue Spring and Volusia Blue Spring Run. The nutrient TMDL is a monthly arithmetic mean nitrate 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:

    3317(a) The WLA for wastewater sources is not applicable;

    3326(b) The WLA for discharges subject to the Department’s NPDES municipal separate storm sewer system (MS4) permitting program 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 based on the mean concentrations from the 2001-2013 period;

    3379(c) The 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 based on the mean concentrations from the 2001-2013 period;

    3422(d) The Margin of Safety is Implicit.

    3429(16) DeLeon Spring. The nutrient TMDL for the DeLeon Spring is an annual arithmetic mean of 0.35 mg/L nitrate at the spring vent, and is allocated as follows:

    3457(a) The WLA for wastewater point sources is not applicable;

    3467(b) The WLA for discharges subject to the Department’s NPDES Municipal Separate Storm Sewer System (MS4) Permitting Program is a 56% reduction of nitrate based on average concentrations from the 2009-2016 period;

    3499(c) The LA for nonpoint sources is a 56% reduction of nitrate based on average loads from the 2009-2016 period; and,

    3520(d) The Margin of Safety is implicit.

    3527(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.

    3590(17) Gemini Springs. The nutrient TMDL for Gemini Springs is an annual arithmetic mean of 0.35 mg/L nitrate at the spring vent, and is allocated as follows:

    3617(a) The WLA for wastewater point sources is not applicable;

    3627(b) The WLA for discharges subject to the Department’s NPDES MS4 Permitting Program is a 74% reduction of nitrate based on average concentrations from the 2009-2016 period;

    3654(c) The LA for nonpoint sources is a 74% reduction of nitrate based on average loads from the 2009-2016 period; and,

    3675(d) The Margin of Safety is implicit.

    3682(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.

    3745(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 annual geometric mean chlorophyll 3785a 3786concentration of 23 µg/L, and is allocated as follows:

    3795(a) The WLA for wastewater point sources is not applicable;

    3805(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;

    3834(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,

    3861(d) The Margin of Safety is implicit.

    3868(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.

    3932(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 annual geometric mean chlorophyll 3979a 3980concentration of 22 µg/L, and is allocated as follows:

    3989(a) The WLA for wastewater point sources is not applicable;

    3999(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;

    4028(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,

    4055(d) The Margin of Safety is implicit.

    4062(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.

    4126(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 annual geometric mean chlorophyll 4172a 4173concentration of 23 µg/L, and is allocated as follows:

    4182(a) The WLA for wastewater point sources is not applicable;

    4192(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;

    4221(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,

    4248(d) The Margin of Safety is implicit.

    4255(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.

    4319(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 annual geometric mean chlorophyll 4358a 4359criterion for low color and high alkalinity lakes, and is allocated as follows:

    4372(a) The WLA for wastewater point sources is not applicable;

    4382(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;

    4411(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,

    4438(d) The Margin of Safety is implicit.

    4445(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.

    4509(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 annual geometric mean chlorophyll 4544a 4545concentration of 30 µg/L, and is allocated as follows:

    4554(a) The WLA for wastewater point sources is not applicable;

    4564(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;

    4593(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,

    4620(d) The Margin of Safety is implicit.

    4627(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.

    4691(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 annual geometric mean chlorophyll 4726a 4727criterion for high color lakes, and is allocated as follows:

    4737(a) The WLA for wastewater point sources is not applicable;

    4747(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;

    4776(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,

    4803(d) The Margin of Safety is implicit.

    4810(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.

    4874(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 annual geometric mean chlorophyll a criterion for high color lakes, and is allocated as follows:

    4924(a) The WLA for wastewater point sources is not applicable;

    4934(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;

    4963(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,

    4990(d) The Margin of Safety is implicit.

    4997(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.

    5061(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 5094a 5095criterion for high color lakes, and is allocated as follows:

    5105(a) The WLA for wastewater point sources is not applicable;

    5115(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;

    5154(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,

    5191(d) The Margin of Safety is implicit.

    5198(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.

    5248(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 5281a 5282criterion for low color and high alkalinity lakes, and is allocated as follows:

    5295(a) The WLA for wastewater point sources is not applicable;

    5305(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;

    5343(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,

    5379(d) The Margin of Safety is implicit.

    5386(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.

    5436Rulemaking Authority 5438403.061, 5439403.067 FS. 5441Law Implemented 5443403.061, 5444403.062, 5445403.067 FS. 5447History–New 8-3-06, Amended 10-15-09, 7-17-14, 10-18-17, 3-26-18, 1-30-20.