Section 62-304.506 - Wekiva Springs Study Area TMDLs(1) Wekiwa Spring. The TMDL for Wekiwa Spring is to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP for the discharge from Wekiwa Spring, 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 79% reduction of nitrate-nitrite and a 64% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is a 79% reduction of nitrate-nitrite and a 64% reduction of TP based on data in the period from 1996 through 2006.(2) Wekiva River Upstream Segment. The TMDL for the Wekiva River Upstream Segment is to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP in the stream segment, and is allocated as follows: (a) The WLA for wastewater sources is 2, 805 lbs/month of nitrate-nitrite and 40 lbs/month of TP. The WLA granted to the Wekiva Hunt Club Wastewater Treatment Facility;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 68% reduction of nitrate-nitrite and a 61% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is a 68% reduction of nitrate-nitrite and a 61% reduction of TP based on data in the period from 1996 through 2006.(3) Wekiva River Downstream Segment. The TMDL for the Wekiva River Downstream Segment are to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP in the stream segment, and is allocated as follows:(a) The WLA for wastewater sources are 572 lbs/month of TN and 191 lbs/month of TP granted to the SCES/Yankee Lake Wastewater Reclamation Facility, and 91 lbs/month of nitrate-nitrite and 26 lbs/month of TP granted to the Altamonte Springs Regional Wastewater Reclamation Facility;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program are a 47% reduction of nitrate-nitrite and a 57% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources are a 47% reduction of nitrate-nitrite and a 57% reduction of TP based on data in the period from 1996 through 2006.(4) Rock Springs. The TMDL for Rock Springs is to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP for the discharge from Rock Springs, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 81% reduction of nitrate-nitrite and a 23% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is a 81% reduction of nitrate-nitrite and a 23% reduction of TP based on data in the period from 1996 through 2006.(5) Rock Springs Run. The TMDL for Rock Springs Run is to achieve 0.286 mg/L nitrate-nitrite and 0.065 mg/L TP in the stream segment, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program are a 63% reduction of nitrate-nitrite and a 58% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is a 63% reduction of nitrate-nitrite and a 58% reduction of TP based on data in the period from 1996 through 2006.(6) Little Wekiva Canal. The DO TMDL for the Little Wekiva Canal is 76, 554 lbs/year of BOD and 42, 624 lbs/year 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 MS4 Permitting Program is a 11% reduction of BOD and a 45% reduction of TN based on data in the period from 1997 through 2005; and(c) The LA for nonpoint sources is 76, 554 lbs/year of BOD and 42, 624 lbs/year TN based on data in the period from 1997 through 2005.(7) Little Wekiva Canal and Little Wekiva River: The bacteriological TMDL for the Little Wekiva Canal and the Little Wekiva River is an annual median of 2.06 x 1011 colonies/day for fecal coliform, and is allocated as follows: (a) The WLA for the City of Altamonte Springs Regional Wastewater Reclamation Facility is 1.19 x 108 colonies/day for fecal coliform;(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 1996 through 2003 period, will require a 43% reduction at sources contributing to exceedances of the criteria; and(c) The LA for nonpoint sources is to address anthropogenic sources in the basin such that in-stream concentrations meet the fecal coliform criteria which, based on the measured concentrations from the 1996 through 2003 period, will require a 43% reduction of sources contributing to exceedances of the criteria.(8) Spring Lake. The TMDL for Spring Lake is 8, 551 lbs/year of TN and 641 lbs/year of TP, and is allocated as follows:(a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program are a 30% reduction of TN and a 65% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources are 8, 551 lbs/year of TN and 641 lbs/year of TP based on data in the period from 1996 through 2006.(9) Lake Florida. The TMDL for Lake Florida is 8, 377 lbs/year of TN and 571 lbs/year of TP, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 34% reduction of TN and a 69% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is 8, 377 lbs/year of TN and 571 lbs/year of TP based on data in the period from 1996 through 2006.(10) Lake Orienta. The TMDL for Lake Orienta is 6, 092 lbs/year of TN and 451 lbs/year of TP, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program are a 42% reduction of TN and a 74% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is 6, 092 lbs/year of TN and 451 lbs/year of TP based on data in the period from 1996 through 2006.(11) Lake Adelaide. The TMDL for Lake Adelaide is 3, 003 lbs/year of TN and 228 lbs/year of TP, and is allocated as follows:(a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 40% reduction of TN and a 72% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources are 3, 003 lbs/year of TN and 228 lbs/year of TP based on data in the period from 1996 through 2006.(12) Lake Lawne. The TMDL for Lake Lawne is 21, 692 lbs/year of TN and 2, 005 lbs/year of TP, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 26% reduction of TN and a 49% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is 21, 692 lbs/year of TN and 2, 005 lbs/year of TP based on data in the period from 1996 through 2006.(13) Silver Lake. The TMDL for Silver Lake is 6, 241 lbs/year of TN and 370 lbs/year of TP, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program is a 24% reduction of TN and a 70% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is 6, 241 lbs/year of TN and 370 lbs/year of TP based on data in the period from 1996 through 2006.(14) Bay Lake. The TMDL for Bay Lake is 1, 428 lbs/year of TN and 109 lbs/year of TP, and is allocated as follows: (a) The WLA for wastewater sources is not applicable;(b) The WLA for discharges subject to the Department's NPDES MS4 Permitting Program are a 39% reduction of TN and a 66% reduction of TP based on data in the period from 1996 through 2006; and(c) The LA for nonpoint sources is 1, 428 lbs/year of TN and 109 lbs/year of TP based on data in the period from 1996 through 2006.Fla. Admin. Code Ann. R. 62-304.506
Rulemaking Authority 403.061, 403.067 FS. Law Implemented 403.061, 403.062, 403.067 FS.
New 6-8-08, Amended by Florida Register Volume 47, Number 081, April 27, 2021 effective 5/9/2021.New 6-8-08, Amended 5-9-21.