62-304.600: Tampa Bay Basin TMDLs
PURPOSE AND EFFECT: The purpose of the rule is to adopt Total Maximum Daily Loads (TMDLs) and their allocations for waters in the Tampa Bay Basin that are impaired for fecal coliform, dissolved oxygen, and nutrients.
SUMMARY: These TMDLs address fecal coliform, dissolved oxygen, and nutrient impairments in the Tampa Bay Basin. Specifically, the TMDL rules being proposed for adoption are fecal coliform TMDLs for Allen Creek (tidal), Alligator Creek, Bellows Lake Outlet, Bishop Creek (freshwater and tidal segments), Brushy Creek, Bullfrog Creek (freshwater and tidal segments), Cross Canal (North), Double Branch, Little Bullfrog Creek, Lower Rocky Creek, Moccasin Creek (tidal), Mullet Creek (freshwater and tidal segments), Rocky Creek, Smacks Bayou, and Sweet Water Creek, dissolved oxygen TMDLs for Bishop Creek (Tidal), Brushy Creek, Cross Canal (North), Double Branch, Mullet Creek (Tidal), Sweet Water Creek, and Tampa Bypass Canal Tributary, and nutrient and dissolved oxygen TMDLs for Alligator Creek, Alligator Lake, Allen Creek (Tidal), Bellows Lake (East Lake), and Bellows Lake Outlet (East Lake Outlet), Bullfrog Creek (Tidal), Cockroach Bay, Coffee Pot Bayou, Lake Tarpon Canal (Marine), Lake Tarpon Canal (Fresh), Lower Rocky Creek, Moccasin Creek (Tidal), and Smacks Bayou. These waterbodies were verified as impaired using the methodology established in Chapter 62-303, F.A.C., Identification of Impaired Surface Waters. The methodologies used to develop the fecal coliform TMDLs were either the percent reduction or load duration analysis method. The methodologies used to develop the nutrient and dissolved oxygen TMDLs included reference waterbodies, and/or the percent reduction methods. This rulemaking has been given OGC case number 09-0718.
SUMMARY OF STATEMENT OF ESTIMATED REGULATORY COSTS: No Statement of Estimated Regulatory Cost was prepared.
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.
SPECIFIC 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 HELD AT THE DATE,TIME AND PLACE SHOWN BELOW(IF NOT REQUESTED, THIS HEARING WILL NOT BE HELD):
DATE AND TIME: September 3, 2009, 9:30 a.m.
PLACE: Florida Department of Environmental Protection, 2600 Blair Stone Road, Room 609, Bob Martinez Center, Tallahassee, Florida 32399-2400
Pursuant to the provisions of the Americans with Disabilities Act, any person requiring special accommodations to participate in this workshop/meeting is asked to advise the agency at least 5 days before the workshop/meeting by contacting: Ms. Pat Waters at (850)245-8449. If you are hearing or speech impaired, please contact the agency using the Florida Relay Service, 1(800)955-8771 (TDD) or 1(800)955-8770 (Voice).
THE PERSON TO BE CONTACTED REGARDING THE PROPOSED RULE IS: Jan Mandrup-Poulsen, Division of Environmental Assessment and Restoration, Bureau of Watershed Restoration, Mail Station 3555, Florida Department of Environmental Protection, 2600 Blair Stone Road, Tallahassee, Florida 32399-2400, telephone (850)245-8448
THE FULL TEXT OF THE PROPOSED RULE IS:
62-304.600 Tampa Bay Basin TMDLs.
(1) Allen Creek (tidal). The fecal coliform TMDL for Allen Creek (tidal) is 400 counts/100mL 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 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 77 percent reduction of sources contributing to exceedances of the criteria,
(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 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.
(2) Allen Creek (Tidal). The TMDL to address the low dissolved oxygen and nutrient impairments in Allen Creek (Tidal) is an annual average 0.75 mg/L of total nitrogen (TN), 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 52 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 52 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) Alligator Creek. The fecal coliform TMDL for Alligator Creek is 4.4 x 1010 counts/day, 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 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,
(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, 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) Alligator Creek. The TMDL to address the low dissolved oxygen and nutrient impairments in Alligator Creek is an annual average for TN of 0.72 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 41 percent reduction for TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 41 percent reduction for 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 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 TN concentrations. However, it is not the intent of the TMDL to abate natural background conditions.
(5) Alligator Lake. The TMDLs to address the low dissolved oxygen and nutrient impairments in Alligator Lake are an annual average of 0.72 mg/L and 2.00 mg/L for TN and annual median 5-day biochemical oxygen demand (BOD5), respectively, 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 19 percent reduction and 46 percent reduction for TN and BOD5, respectively, of sources contributing to exceedances of the criteria.
(c) The LAs for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 19 percent reduction and 46 percent reduction for TN and BOD5, respectively, of sources contributing to exceedances of the criteria, 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 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 BOD5 concentrations. However, it is not the intent of the TMDL to abate natural background conditions.
(6) Bellows Lake Outlet (also known as East Lake Outfall). The fecal coliform TMDL for Bellows Lake Outlet is 400 counts/100mL, 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 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,
(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, 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) Bellows Lake Outlet (also known as East Lake Outfall). The TMDLs to address the low dissolved oxygen and nutrient impairments in Bellows Lake Outlet are an annual average TN of 1.40 mg/L, TP of 0.055 mg/L, and 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005 -2006 period, will require a 50 percent reduction of TN, a 53 percent reduction in TP, and a 68 percent reduction in BOD5 of sources that are contributing to exceedances of the criteria.
(c) The LAs for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005 -2006 period, will require a 50 percent reduction of TN, a 53 percent reduction in TP, and a 68 percent reduction in 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.
(8) Bellows Lake (also known as East Lake). The TMDLs to address the low dissolved oxygen (addresses downstream impairment) and nutrient impairments are an annual average TN of 1.40 mg/L, TP of 0.055 mg/L, and 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005 -2006 period, will require a 50 percent reduction of TN, a 53 percent reduction in TP, and a 68 percent reduction in BOD5 of sources that are contributing to exceedances of the criteria.
(c) The LAs for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations in the 2005 -2006 period, will require a 50 percent reduction of TN, a 53 percent reduction in TP, and a 68 percent reduction in 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.
(9) Bishop Creek (freshwater). The fecal coliform TMDL for Bishop Creek (freshwater) is 400 counts/100mL, 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 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,
(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, 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) Bishop Creek (tidal). The fecal coliform TMDL for Bishop Creek (tidal) is 400 counts/100mL, 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 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,
(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, 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) Bishop Creek (Tidal). The TMDL to address the low dissolved oxygen impairments in Bishop Creek (Tidal) is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 33 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 33 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.
(12) Brushy Creek. The fecal coliform TMDL for Brushy Creek is 400 counts/100mL, 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 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,
(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, and
(d) The Margin of Safety is implicit.
(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.
(13) Brushy Creek. The TMDL to address the low dissolved oxygen impairment in Brushy Creek is an annual average 0.75 mg/L of TN and is allocated as follows:
(a) The WLA for the Hillsborough County Dale Mabry Advanced Wastewater Treatment Plant (FL0036820) is 54,794 lbs/year of TN.
(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 dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 32 percent reduction of TN of sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 32 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 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.
(14) Bullfrog Creek (freshwater). The fecal coliform TMDL for Bullfrog Creek (freshwater) is 1.66 x 1011 counts/day, 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 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,
(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, 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 crit eria, 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) Bullfrog Creek (tidal). The fecal coliform TMDL for Bullfrog Creek (tidal) is 400 counts/100mL, 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 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,
(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, 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.
(16) Bullfrog Creek (tidal). The TMDL to address the low dissolved oxygen and nutrients in Bullfrog Creek (tidal) is an annual average total nitrogen (TN) concentration of 0.65 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2006 period, will require a 47 percent reduction of TN of sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the Class III marine dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2006 period, will require a 47 percent reduction of TN of 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.
(17) Cockroach Bay. The TMDLs to address the low dissolved oxygen and nutrient impairments are an annual average of 0.54 mg/L and 2.00 mg/L for TN and BOD5, respectively, 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations from year 2000, will require a 54 percent reduction in current anthropogenic loadings of TN and a 38 percent reduction in current anthropogenic loadings of BOD5 of sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations from year 2000, will require a 54 percent reduction of TN and a 38 percent reduction of BOD5 of sources 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 II 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.
(18) Coffee Pot Bayou. The TMDL to address the low dissolved oxygen and nutrient impairments are an annual average of 0.63 mg/L and 2.00 mg/L for TN and BOD5, respectively, 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 Municipal Stormwater Permitting Program are to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations from the 2000 – 2007 period, will require a 33 percent reduction of TN and a 40 percent reduction of BOD5 of sources contributing to exceedances of the criteria.
(c) The LAs for nonpoint sources are to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations from the 2000 – 2007 period, will require a 33 percent reduction of TN and a 40 percent reduction of BOD5 of sources 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 II 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.
(19) Cross Canal (North). The fecal coliform TMDL for Cross Canal (North) is 400 counts/100mL, 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 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 64 percent reduction of sources contributing to exceedances of the criteria,
(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 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 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.
(20) Cross Canal (North). The TMDL to address the low dissolved oxygen impairment in Cross Canal (North) is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 55 percent reduction of sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 55 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 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.
(21) Double Branch. The fecal coliform TMDL for Double Branch is 400 counts/100mL, 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 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 41 percent reduction of sources contributing to exceedances of the criteria,
(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 41 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.
(22) Double branch. The TMDL to address the low dissolved oxygen and nutrient impairments in Double Branch is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2008 period, will require a 43 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2008 period, will require a 43 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.
(23) Lake Tarpon Canal (Freshwater). The TMDL to address the low dissolved oxygen and nutrient impairments in Lake Tarpon Canal (Freshwater) is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrients criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 36 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrients criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 36 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.
(24) Lake Tarpon Canal (Marine). The TMDLs to address the low dissolved oxygen and nutrient impairments in Lake Tarpon Canal (Marine) are an annual average 0.75 mg/L and 0.18 mg/L of TN and TP, respectively, 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 Municipal Stormwater Permitting Program are to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 33 percent reduction and 27 percent reduction for TN and TP, respectively, of sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 33 percent reduction and 27 percent reduction for TN and TP, respectively, of 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.
(25) Little Bullfrog Creek. The fecal coliform TMDL for Little Bullfrog Creek is 400 counts/100mL, 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 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,
(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, and
(d) The Margin of Safety is implicit.
(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.
(26) Lower Rocky Creek. The fecal coliform TMDL for Lower Rocky Creek is 400 counts/100mL, 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 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 71 percent reduction of sources contributing to exceedances of the criteria,
(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 71 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.
(27) Lower Rocky Creek. The TMDL to address the low dissolved oxygen and nutrient impairments in Lower Rocky Creek is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 55 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 55 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.
(28) Moccasin Creek (tidal). The fecal coliform TMDL for Moccasin Creek (tidal) is 400 counts/100mL, 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 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,
(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, 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.
(29) Moccasin Creek. The TMDLs to address the low dissolved oxygen and nutrient impairments in Moccasin Creek are an annual average 0.75 mg/L and 0.18 mg/L of TN and TP, respectively, 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 Municipal Stormwater Permitting Program are to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 41 percent reduction and 40 percent reduction for TN and TP, respectively, of sources contributing to exceedances of the criteria,
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 41 percent reduction and 40 percent reduction for TN and TP, respectively, of 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 concentration. However, it is not the intent of the TMDL to abate natural background conditions.
(30) Mullet Creek (freshwater). The fecal coliform TMDL for Mullet Creek (freshwater) is 400 counts/100mL, 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 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,
(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, 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.
(31) Mullet Creek (tidal). The fecal coliform TMDL for Mullet Creek (tidal) is 400 counts/100mL, 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 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,
(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, 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.
(32) Mullet Creek (Tidal). The TMDL to address the low dissolved oxygen impairment in Mullet Creek Tidal is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 37 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 37 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.
(33) Rocky Creek. The fecal coliform TMDL for Rocky Creek is 400 counts/100mL, 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) is that they meet the facilities’ permit limits,
(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 2000 to 2007 period, will require a 58 percent reduction of sources contributing to exceedances of the criteria,
(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, 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.
(34) Smacks Bayou. The fecal coliform TMDL for Smacks Bayou is 400 counts/100mL, 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 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 1996 period, will require a 75 percent reduction of sources contributing to exceedances of the criteria,
(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 1995 to 1996 period, will require a 75 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.
(35) Smacks Bayou. The TMDLs to address the low dissolved oxygen and nutrient impairments are an annual average of 0.63 mg/L and 2.00 mg/L for TN and BOD5, respectively. These TMDLs are applicable to sources in the 45th Avenue Northeast Canal subbasin and the 54th Avenue East Canal subbasin within the Smacks Bayou watershed 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations in the canals from the 1992 to 2005 period, will require a 51 percent reduction of TN and a 30 percent reduction of BOD5 of sources contributing to exceedances of the criteria.
(c) The LAs for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen and nutrient criteria which, based on measured concentrations in the canals from the 1992 to 2005 period, will require a51 percent reduction of TN and a 30 percent reduction of BOD5 of sources 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 II 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.
(36) Sweetwater Creek. The fecal coliform TMDL for Sweetwater Creek is 400 counts/100mL, 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 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,
(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, 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.
(37) Sweetwater Creek. The TMDL to address the low dissolved oxygen impairment in Sweetwater Creek is an annual average 0.75 mg/L of TN 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 23 percent reduction of TN at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the 2000 to 2007 period, will require a 23 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.
(38) Tampa Bypass Canal Tributary. The TMDLs to address the low dissolved oxygen and nutrient impairments in the Tampa Bypass Canal Tributary 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 Municipal Stormwater Permitting Program is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the year 2005, will require a 31 percent reduction of TN and 34 percent reduction of TP at sources contributing to exceedances of the criteria.
(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the dissolved oxygen criteria which, based on the measured concentrations from the year 2005, will require a 31 percent reduction of TN and 34 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 backgro und conditions.
Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS. History–New________.