Section 62-304.415 - Lower St. Johns River Basin TMDLs(1) Lower St. Johns River (freshwater segments from Buffalo Bluff to Black Creek). The TMDL 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 and 8, 571, 563 kg/y of TN, and is allocated as follows: (a) The WLA 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 for nonpoint sources is 453, 968 kg/y of TP and 8, 334, 868 kg/y of TN.(2) Lower St. Johns River (marine segments). The TMDL 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, and is allocated as follows: (a) The WLA for point sources discharging to the marine portion of the river is 1, 027, 590 kg/y of TN; and(b) The LA for nonpoint sources discharging to the marine portion of the river is 349, 265 kg/y of TN.(3) Durbin Creek. The bacteriological TMDL for Durbin Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 63% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is a 63% reduction of current fecal coliform loading.(4) Goodbys Creek. The bacteriological TMDL for Goodbys Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 87% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is an 87% reduction of current fecal coliform loading.(5) Hogan Creek. The bacteriological TMDL for Hogan Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 92% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is a 92% reduction of current fecal coliform loading.(6) Miramar Creek. The bacteriological TMDL for Miramar Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 92% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is a 92% reduction of current fecal coliform loading.(7) Butcher Pen Creek. The bacteriological TMDL for Butcher Pen Creek is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for wastewater discharges subject to the Department's NPDES Permitting Program is to meet the applicable water quality criteria for fecal coliforms;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 83% reduction of current anthropogenic fecal coliform loading; and(c) The LA for nonpoint sources is an 83% reduction of current fecal coliform loading.(8) Cedar River. The bacteriological TMDL for the Cedar River is 400 counts/100 mL for fecal coliform and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 83% reduction of current anthropogenic fecal coliform loading;(b) The LA for nonpoint sources is an 83% reduction of current fecal coliform loading; and(9) Williamson Creek. The bacteriological TMDL for Williamson Creek is 400 counts/100 mL for fecal coliform and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 83% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is an 83% reduction of current fecal coliform loading.(10) Wills Branch. The bacteriological TMDL for Wills Branch is 400 counts/100 mL for fecal coliform and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 80% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is an 80% reduction of current fecal coliform loading.(11) Moncrief Creek. The bacteriological TMDL for Moncrief Creek is 400 counts/100 mL for fecal coliform and is allocated as follows:(a) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is an 83% reduction of current anthropogenic fecal coliform loading; and(b) The LA for nonpoint sources is an 83% reduction of current fecal coliform loading.(12) Ribault River. The bacteriological TMDL for the Ribault River is 400 counts/100 mL for fecal coliform, and is allocated as follows:(a) The WLA for wastewater discharges subject to the Department's NPDES Permitting Program is to meet the applicable water quality criteria for fecal coliforms;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 50% reduction of current anthropogenic fecal coliform loading; and(c) The LA for nonpoint sources is a 50% reduction of current fecal coliform loading.(13) Big Davis Creek. The bacteriological TMDL for Big Davis 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 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% 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 69% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(26) Arlington River. The TMDL for Arlington River is a 30% reduction in 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 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% 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% reduction of TN for sources contributing to the nutrient impairment.(d) 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 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% 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% reduction from sources contributing to exceedances of the lead criterion.(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 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% 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% reduction from sources contributing to exceedances of the lead criterion.(29) Doctors Lake. The TMDL for Doctors Lake is a 50% 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 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% 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% reduction of TN for sources contributing to exceedances of the nutrient criteria.(d) 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% reduction in TN and a 30% reduction in TP to address low 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 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% reduction in TN and a 30% 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% reduction of TN and a 30% reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(35) Middle Trout River. The TMDLs for Middle Trout River are a 30% reduction in TN and a 70% 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 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% reduction of TN and a 70% 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% reduction of TN and a 70% reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(37) Mill Creek. The TMDLs for Mill Creek are a 30% reduction in TN and a 30% 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 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% reduction of TN and a 30% 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% reduction of TN and a 30% reduction of TP from sources contributing to exceedances of the DO and nutrient criteria.(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(39) Ortega River. The TMDL for Ortega River is a 30% 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 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% 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% reduction of TN from sources contributing to exceedances of the DO and nutrient criteria.(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction from sources contributing to exceedances of the lead criterion.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(43) Sixteen Mile Creek. The TMDLs for Sixteen Mile Creek are a 30% reduction in TN and a 30% 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 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 1987 to 2008 period, will require a 30% reduction of TN and a 30% 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% reduction of TN and a 30% reduction of TP from sources contributing to exceedances of the DO criteria;(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(45) Swimming Pen Creek. The TMDL for Swimming Pen Creek is a 30% 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 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% 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% reduction of TN from sources contributing to exceedances of the DO and nutrient criteria;(d) 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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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% 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% reduction of sources contributing to exceedances of the criteria.(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 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 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 for nonpoint sources is a 34% reduction of TN and a 58% reduction of TP based on average loads from the 2000-2013 period.(52) Haw Creek above Crescent Lake. The DO TMDL for Haw Creek above Crescent Lake is a seven-year average of annual loads of 504, 043 lbs/year TN and 21, 880 lbs/year 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 28% reduction of TN (calculated from 680, 261 lbs/year) and a 62% reduction of TP (calculated from 55, 813 lbs/year), which are based on the highest seven-year average of annual loads from the 2004 - 2015 period; and(c) The LA for nonpoint sources is a 28% reduction of TN (calculated from 680, 261 lbs/year) and a 62% reduction of TP (calculated from 55, 813 lbs/year), which are based on the highest seven-year average of annual loads from the 2004 - 2015 period.Fla. Admin. Code Ann. R. 62-304.415
Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS.
New 12-3-03, Amended 5-15-06, 6-3-08, 7-27-09, 11-2-09, 7-21-10, Amended by Florida Register Volume 43, Number 095, May 16, 2017 effective 5/30/2017, Amended by Florida Register Volume 47, Number 081, April 27, 2021 effective 5/9/2021, Amended by Florida Register Volume 48, Number 016, January 25, 2022 effective 2/8/2022.New 12-3-03, Amended 5-15-06, 6-3-08, 7-27-09, 11-2-09, 7-21-10, 5-30-17, 5-9-21, 2-8-22.