Fla. Admin. Code Ann. R. 62-304.305 - Ochlockonee River Basin TMDLs

(1) Juniper Creek TMDL. The DO TMDL for Juniper Creek is based on achieving the Class 3 fresh water minimum DO criterion of 5.0 mg/L, 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 TN criteria which, based on the measured concentrations from the 1979 to 2006 period, will require a 18.18% reduction at sources contributing to exceedances of the criteria; and

(b) 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% reduction at sources contributing to exceedances of the criteria.

(2) Juniper Creek. The bacteriological TMDL for Juniper 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 1992 to 2007 period, will require a 48.1% reduction at 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 1992 to 2007 period, will require a 48.1% reduction at sources contributing to exceedances of the criteria.

(3) Black Creek. 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 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, there currently are no NPDES point sources located in Black Creek;

(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 1992 to 2007 period, will require a 39.6% reduction at sources contributing to exceedances of the criteria.

(4) Swamp Creek. The bacteriological TMDL for Swamp 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 1992 to 2007 period, will require a 69.2% reduction at 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 1992 to 2007 period, will require a 69.2% reduction at sources contributing to exceedances of the criteria.

(5) Lake Tallavana. The nutrient 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 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 not applicable; and

(c) The 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.

(6) Lake Talquin. The nutrient TMDL for Lake Talquin is a seven-year average of annual loads of 1, 134, 850 kg/yr TN, and 112, 326 kg/yr TP, which are intended to achieve the applicable AGM chlorophyll a criterion for high color lakes, and is allocated as follows:

(a) The WLA for the Quincy WWTF (Permit Number FL0029033) is 4, 745 kg/yr of TN and 1, 460 kg/yr of TP; and the WLA for the Arvah B. Hopkins Power Plant (Permit Number FL0025518) is 986 kg/yr of TN and 2, 409 kg/yr of TP;

(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 19% reduction in TN (calculated from 1, 396, 458 kg/yr) and a 21% reduction in TP (calculated from 142, 659 kg/yr), based on the maximum 7-year average load from the 2008 - 2017 period; and

(c) The LA for nonpoint sources is a 19% reduction in TN (calculated from 1, 396, 458 kg/yr) and a 21% reduction in TP (calculated from 142, 659 kgs/yr), based on the maximum 7-year average load from the 2008 - 2017 period.

Notes

Fla. Admin. Code Ann. R. 62-304.305

Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS.

New 10-21-08, Amended by Florida Register Volume 44, Number 085, May 1, 2018 effective 5/17/2018, Amended by Florida Register Volume 47, Number 081, April 27, 2021 effective 5/9/2021, Amended by Florida Register Volume 48, Number 086, May 3, 2022 effective 5/16/2022.

New 10-21-08, Amended 5-17-18, 5-9-21, 5-16-22.