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MONTHYEARL-2014-216, License Amendment Request No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit2014-07-10010 July 2014 License Amendment Request No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit Project stage: Request L-2014-226, License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit - Request for Emergency Approval2014-07-17017 July 2014 License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit - Request for Emergency Approval Project stage: Request ML14203A6182014-07-18018 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 Project stage: RAI ML15131A5752014-07-18018 July 2014 La - Turkey Point 3 and 4 Request for Additional Information - LAR 231 Project stage: RAI ML14203A6142014-07-18018 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 Project stage: RAI ML14203A6202014-07-21021 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI L-2014-232, Response to Request for Additional Information Regarding License Amendment Request No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit2014-07-22022 July 2014 Response to Request for Additional Information Regarding License Amendment Request No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit Project stage: Response to RAI L-2014-235, License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit - Supplement 1, and Response to Request for Additional Information2014-07-22022 July 2014 License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit - Supplement 1, and Response to Request for Additional Information Project stage: Supplement ML14204A8142014-07-22022 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI L-2014-236, Response to Containment and Ventilation Branch Request for Additional Information, Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Temperature Limit2014-07-24024 July 2014 Response to Containment and Ventilation Branch Request for Additional Information, Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Temperature Limit Project stage: Request ML14208A0102014-07-25025 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI ML14208A0112014-07-26026 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI L-2014-237, Response to Request for Additional Information Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit2014-07-26026 July 2014 Response to Request for Additional Information Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit Project stage: Response to RAI ML14216A0722014-07-28028 July 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI ML14209A0312014-07-28028 July 2014 Environmental Assessment and Finding of No Significant Impact Related to the Ultimate Heat Sink Temperature Limit Project stage: Other NRC-2014-0181, Environmental Assessment and Finding of No Significant Impact Related to the Ultimate Heat Sink Temperature Limit (TAC Nos. MF4392 and MF4393)2014-07-28028 July 2014 Environmental Assessment and Finding of No Significant Impact Related to the Ultimate Heat Sink Temperature Limit (TAC Nos. MF4392 and MF4393) Project stage: Other ML14217A0042014-08-0303 August 2014 NRR E-mail Capture - Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TACs MF4392 and MF4393) Project stage: RAI L-2014-259, Response to Containment and Ventilation Branch Request for Additional Information (RAI-5), Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit2014-08-0404 August 2014 Response to Containment and Ventilation Branch Request for Additional Information (RAI-5), Regarding License Amendment Request No. 231, Application to Revise Ultimate Heat Sink Temperature Limit Project stage: Request 2014-07-24
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Category:Letter type:L
MONTHYEARL-2024-010, Point Units 3 and 4, Seabrook, Duane Arnold, and Point Beach Units 1 and 2, Nuclear Property Insurance - 10 CFR 50.54(w)(3)2024-01-25025 January 2024 Point Units 3 and 4, Seabrook, Duane Arnold, and Point Beach Units 1 and 2, Nuclear Property Insurance - 10 CFR 50.54(w)(3) L-2024-007, Inservice Inspection Program Owner'S Activity Report (OAR-1)2024-01-18018 January 2024 Inservice Inspection Program Owner'S Activity Report (OAR-1) L-2023-173, Quality Assurance Topical Report (FPL-1) Revision 30 Update2023-12-15015 December 2023 Quality Assurance Topical Report (FPL-1) Revision 30 Update L-2023-166, Turkey Points Units 3 and 4, Correction to the 2022 Annual Radioactive Effluent Release Report2023-12-0606 December 2023 Turkey Points Units 3 and 4, Correction to the 2022 Annual Radioactive Effluent Release Report L-2023-172, Supplement to Exemption Request Regarding Enhanced Weapons. Firearms Background Checks. and Security Event Notifications Final Rule2023-11-29029 November 2023 Supplement to Exemption Request Regarding Enhanced Weapons. Firearms Background Checks. and Security Event Notifications Final Rule L-2023-155, Supplement to Response to Request for Additional Information, Revised NextEra Common Emergency Plan, and Revised Site-Specific Emergency Plan Annexes Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-06542023-11-28028 November 2023 Supplement to Response to Request for Additional Information, Revised NextEra Common Emergency Plan, and Revised Site-Specific Emergency Plan Annexes Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, L-2023-146, Part 73 Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule2023-11-16016 November 2023 Part 73 Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule L-2023-078, License Amendment Request 278, Incorporate Advanced Fuel Products, Extend Surveillance Intervals and 10 CFR 50.46 Exemption Request to Facilitate Transition to 24-Month Fuel Cycles2023-11-15015 November 2023 License Amendment Request 278, Incorporate Advanced Fuel Products, Extend Surveillance Intervals and 10 CFR 50.46 Exemption Request to Facilitate Transition to 24-Month Fuel Cycles L-2023-077, License Amendment Request 277 Updated Spent Fuel Pool Criticality Analysis2023-10-11011 October 2023 License Amendment Request 277 Updated Spent Fuel Pool Criticality Analysis L-2023-110, Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project2023-08-25025 August 2023 Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project L-2023-115, Inservice Inspection Program Owner'S Activity Report (OAR-1)2023-08-21021 August 2023 Inservice Inspection Program Owner'S Activity Report (OAR-1) L-2023-114, Proposed Turkey Point Units 6 and 7; Seabrook Station; Point Beach Units 1 and 2 - Official Service List Update2023-08-17017 August 2023 Proposed Turkey Point Units 6 and 7; Seabrook Station; Point Beach Units 1 and 2 - Official Service List Update L-2023-098, and Point Beach Units 1 and 2 - Response to Request for Additional Information Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 22023-08-0707 August 2023 and Point Beach Units 1 and 2 - Response to Request for Additional Information Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 2 L-2023-094, Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project2023-07-27027 July 2023 Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project L-2023-087, Florida Power & Light/Nextera Energy, Results of the Safety Culture Program Effectiveness Review, March 20, 2023 (ADAMS Accession No. ML22340A452)2023-06-29029 June 2023 Florida Power & Light/Nextera Energy, Results of the Safety Culture Program Effectiveness Review, March 20, 2023 (ADAMS Accession No. ML22340A452) L-2023-086, Request Temporary Suspension of Turkey Point License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation.2023-06-28028 June 2023 Request Temporary Suspension of Turkey Point License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation. L-2023-074, Addendum to 2021 Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation Ctsfsi) Financial Assurance Update2023-06-0202 June 2023 Addendum to 2021 Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation Ctsfsi) Financial Assurance Update L-2023-069, Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project2023-05-31031 May 2023 Response to Requests for Additional Information Regarding License Amendment Request No. 276, Revise Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project L-2023-072, Preparation and Scheduling of Operator Licensing Examinations2023-05-22022 May 2023 Preparation and Scheduling of Operator Licensing Examinations L-2023-071, NextEra Energy Quality Assurance Topical Report (FPL-1) Revision 29 and Florida Power and Light Company Quality Assurance Program Description for 10 CFR Part 52 Licenses (FPL-2) Revision 11, Annual Submittal2023-05-22022 May 2023 NextEra Energy Quality Assurance Topical Report (FPL-1) Revision 29 and Florida Power and Light Company Quality Assurance Program Description for 10 CFR Part 52 Licenses (FPL-2) Revision 11, Annual Submittal L-2023-061, 2022 Annual Radiological Environmental Operating Report2023-05-12012 May 2023 2022 Annual Radiological Environmental Operating Report L-2023-062, Cycle 33 Core Operating Limits Report2023-04-27027 April 2023 Cycle 33 Core Operating Limits Report L-2023-060, Radiological Emergency Plan, Revision 752023-04-26026 April 2023 Radiological Emergency Plan, Revision 75 L-2023-054, Submittal of Periodic Reports2023-04-12012 April 2023 Submittal of Periodic Reports L-2023-049, Correction to U4R33 Steam Generator Tube Inspection Report2023-03-30030 March 2023 Correction to U4R33 Steam Generator Tube Inspection Report L-2023-021, Units, 1 and 2, Turkey Point, Units 3 and 4, Seabrook Station and Point Beach, Units 1 and 2 - Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update2023-03-28028 March 2023 Units, 1 and 2, Turkey Point, Units 3 and 4, Seabrook Station and Point Beach, Units 1 and 2 - Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update L-2023-028, and Point Beach Units 1 and 2, 10 CFR 50.46 Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications2023-03-27027 March 2023 and Point Beach Units 1 and 2, 10 CFR 50.46 Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications L-2023-025, Fleet Relief Request (Frr) 23-01, Proposed Alternative to ASME Section XI Authorizing Implementation of ASME Code Case N-752-12023-03-15015 March 2023 Fleet Relief Request (Frr) 23-01, Proposed Alternative to ASME Section XI Authorizing Implementation of ASME Code Case N-752-1 L-2023-029, and Point Beach Units 1 and 2 Nuclear Property Insurance - 10 CFR 50.54(w)(3)2023-03-10010 March 2023 and Point Beach Units 1 and 2 Nuclear Property Insurance - 10 CFR 50.54(w)(3) L-2023-040, Response to Requests for Additional Information (Rals) and Requests for Confirmation of Information (Rc Ls) Following Regulatory Audit of Subsequent License Renewal Application2023-03-0303 March 2023 Response to Requests for Additional Information (Rals) and Requests for Confirmation of Information (Rc Ls) Following Regulatory Audit of Subsequent License Renewal Application L-2023-037, Annual Radioactive Effluent Release Report2023-03-0101 March 2023 Annual Radioactive Effluent Release Report L-2023-017, Radiological Emergency Plan Revision 73 and Revision 7 42023-02-17017 February 2023 Radiological Emergency Plan Revision 73 and Revision 7 4 L-2023-010, Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement Project - Submittal of RPS / ESFAS / Nis2023-02-10010 February 2023 Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement Project - Submittal of RPS / ESFAS / Nis L-2023-004, Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement Project - Submittal of Huma Factors Results2023-01-17017 January 2023 Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement Project - Submittal of Huma Factors Results L-2022-185, Turkey Points, Units 3 & 4; Seabrook Station; and Point Beach, Units 1 and 2 - Supplement to License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 22022-12-0909 December 2022 Turkey Points, Units 3 & 4; Seabrook Station; and Point Beach, Units 1 and 2 - Supplement to License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 2 L-2022-181, Response to Request for Additional Information Regarding License Amendment Request for the Technical Specifications Conversion to NUREG-1431, Revision 52022-12-0101 December 2022 Response to Request for Additional Information Regarding License Amendment Request for the Technical Specifications Conversion to NUREG-1431, Revision 5 L-2022-182, Emergency Response Data System (Eros) Changes2022-11-17017 November 2022 Emergency Response Data System (Eros) Changes L-2022-180, CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums2022-11-0909 November 2022 CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums L-2022-168, and Point Beach Units 1 and 2 - 10 CFR 50.46 - Emergency Core Cooling System LBLOCA 30-Day Report2022-10-26026 October 2022 and Point Beach Units 1 and 2 - 10 CFR 50.46 - Emergency Core Cooling System LBLOCA 30-Day Report L-2022-171, 10 CFR 50.59(d)(2) Summary Report2022-10-20020 October 2022 10 CFR 50.59(d)(2) Summary Report L-2022-167, Submittal of Periodic Reports2022-10-13013 October 2022 Submittal of Periodic Reports L-2022-166, Response to Request for Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement2022-10-0505 October 2022 Response to Request for Supplemental Information Regarding License Amendment Request 274, Reactor Protection System, Engineered Safety Features Actuation System, and Nuclear Instrumentation System Replacement L-2022-149, U4R33 Steam Generator Tube Inspection Report2022-10-0404 October 2022 U4R33 Steam Generator Tube Inspection Report L-2022-160, Station,, Point Beach Units 1 and 2, License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 22022-10-0404 October 2022 Station,, Point Beach Units 1 and 2, License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 2 L-2022-148, Florida Power & Light Company, Comments on NRC Inspection Procedure (IP) 71111.21 N.03, Commercial Grade Dedication2022-09-16016 September 2022 Florida Power & Light Company, Comments on NRC Inspection Procedure (IP) 71111.21 N.03, Commercial Grade Dedication L-2022-151, Evacuation Time Estimate Study2022-09-15015 September 2022 Evacuation Time Estimate Study L-2022-142, Revised Diversity and Defense-In-Depth Evaluation (D3), Framatome Document No. 51-9324096-0042022-08-19019 August 2022 Revised Diversity and Defense-In-Depth Evaluation (D3), Framatome Document No. 51-9324096-004 L-2022-136, Response to Request for Additional Information Regarding Turkey Point Unit 3 Cycle 32 Steam Generator Tube Inspection Report2022-08-12012 August 2022 Response to Request for Additional Information Regarding Turkey Point Unit 3 Cycle 32 Steam Generator Tube Inspection Report L-2022-109, Inservice Inspection Program - Owner'S Activity Report (OAR-1)2022-06-27027 June 2022 Inservice Inspection Program - Owner'S Activity Report (OAR-1) L-2022-076, Subsequent License Renewal Application - Appendix E Environmental Report Supplement 22022-06-0909 June 2022 Subsequent License Renewal Application - Appendix E Environmental Report Supplement 2 2024-01-25
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0 I IPL, 10 CFR 50.90 L-2014-232 July 22, 2014 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Renewed Facility Operating License Nos. DPR-31 and DPR-41
Subject:
Response to Request for Additional Information Regarding License Amendment Request No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit
References:
- 1. Florida Power & Light Company Letter L-2014-216, "License Amendment Request No.
231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit," July 10, 2014.
- 2. Florida Power & Light Company Letter L-2014-226, "License Amendment Request No.
231, Application to Revise Ultimate Heat Sink Temperature Limit - Request for Emergency Approval," July 17, 2014.
- 3. Email from A. Klett (NRC) to R. Tomonto (FPL), "Turkey Point 3 and 4 Request for Additional Information - LAR 231 (TAC MF4392 and MF4393)," July 18, 2014.
Per Reference I and pursuant to 10 CFR 50.90, Florida Power & Light Company (FPL) requested an amendment to the Technical Specifications (TS) for the Turkey Point Nuclear Plant (Turkey Point), Units 3 and 4. The proposed amendment would revise the ultimate heat sink (UHS) water temperature limit from I00°F to 104'F.
Per Reference 2, FPL supplemented the July 10, 2014 application requesting NRC to review and approve the amendment request as an emergency amendment.
By email from the NRC Project Manager dated July 18, 2014 [Reference 3], additional information was requested by the NRC staff to complete the review. The enclosure to this letter provides the response to the request for additional information.
The additional information provided in the enclosure to this letter does not impact the no significant hazards determination and environmental considerations previously provided in L-2014-216 [Reference 1].
Florida Power & Light Company C o 9760 SW 344 th St., Florida City. Fl. 33035
L-2014-232 Page 2 of 2 There are no new commitments made in this submission.
If you have any questions or require additional information, please contact Mr. Robert Tomonto at 305-246-7327.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on: July ,2_?, 2014.
Very truly yours, Michael Kiley Vice President Turkey Point Nuclear Plant
Enclosure:
Response to Request for Additional Information Regarding LAR No. 231, Application to Revise Technical Specifications to Revise Ultimate Heat Sink Temperature Limit cc: USNRC Regional Administrator, Region II USNRC Project Manager, Turkey Point Nuclear Plant USNRC Senior Resident Inspector, Turkey Point Nuclear Plant Ms. Cindy Becker, Florida Department of Health
L-2014-232 Enclosure Page 1 of 5 Response to Request for Additional Information Regarding Turkey Point Units 3 and 4 License Amendment Request No. 231 Application to Revise Technical Specifications To Revise Ultimate Heat Sink Temperature Limit Enclosure
L-2014-232 Enclosure Page 2 of 5 NRC RAI 4 Pursuant to the Endangered Species Act (ESA) of 1973, as amended, the U.S. Fish and Wildlife Service (FWS) issued the NRC a biological opinion for American crocodiles at Turkey Point on May 5, 2006 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML061430174), and this biological opinion was subsequently modified on August 1, 2006 (ADAMS Accession No. ML062420111). In 2011, the NRC and FWS consulted under the ESA's informal consultation procedures at Title 50 of the Code of FederalRegulations, Section 402.13 regarding the Turkey Point extended power uprate. In its October 25, 2011, letter concluding consultation (ADAMS Accession No. MLI 1306A160), the FWS stated the following:
Because the effects to crocodilesfrom the possible slight increase in water temperature andsalinity in the cooling canals due to the proposedpower uprate are unclear, FPL will increase their crocodile monitoring efforts in the project area...Should the monitoring reveal measurable, negative effects on the crocodile in this area, it will be considered additionalinformation involving effects on a listed species and NRC (or FPL on their behalJf should contact the Service to reinitiate consultation.
Accordingly, the NRC staff are concerned that the LAR to revise the UHS water temperature limit from 100 degrees Fahrenheit (°F) to 104 'F could adversely affect the population of Federally threatened American crocodiles (Crocodylus acutus) living on the Turkey Point site and the designated critical habitat on the plant site.
Provide an analysis of the impacts to crocodiles that would result from the temperature increase that addresses effects to crocodile growth, survival, abundance, and spatial distribution on the Turkey Point site. The analysis should also address any adverse modifications to designated critical habitat on the site. Both the direct impact of the LAR (i.e., increased cooling canal system temperatures) and any indirect impacts (e.g., increased salinity resulting from the increased evaporation rate of higher temperature water) should be addressed.
FPL Response In 2011, Florida Power & Light Company (FPL) increased the crocodile monitoring in the cooling canal system (CCS). FPL and University of Florida (UF) conducted several years of pre-Uprate crocodile monitoring to assess the spatial distribution, growth and survivorship of the crocodiles. FPL committed to a minimum of 2 years post-Uprate monitoring to ensure the increase in temperature and salinity will have no impact to the crocodile population utilizing the CCS. Both Units have been operating in the Uprated mode since June of 2013. The surveys consist of spotlight surveys every other month (2011-2013) and capture and tagging surveys three times a year. In 2014, after approval of the Fish and Wildlife Conservation Commission, the spotlight surveys were reduced to quarterly. The data indicate that the crocodiles are distributed in the canals with the most concentrated area in the Southern and SW corner of the CCS.
L-2014-232 Enclosure Page 3 of 5 The crocodiles utilize the CCS for courting, nesting and basking. The data in the table below indicate any increase in temperature and salinity has not had an impact to the crocodiles use of the CCS.
Year Spotlight Surveys Number of Number of Observances Captures Nest/Tagged Hatchlings 2011 747 117 15/268 2012 675 93 18/229 2013 646 102 25/429 2014 223' 64 25/398-Through May 2013 and spotlight surveys. In 2014, reduced from Bi-monthly to Quarterly 2Three more nest expected to hatch FPL has several stations that monitor temperature in the CCS on an hourly basis. Below is a time series temperature plot for 4 of those stations. The attached map identifies the station locations. Station CCS-3 is a station in the area that is utilized most by the crocodiles. The data indicates the temperature fluctuates throughout the year with temperature typically peaking in the month of July. The factor that restricts American crocodiles across their range is access to fresh water for their hatchlings to develop salt excreting glands. The Turkey Point Nuclear Power Plant Cooling Canal System is an ideal situation in order for the population to recruit more individuals. Within the CCS there are numerous fresh water and lower saline ponds where females place the hatchlings for the purpose of developing their salt excreting glands.
Joe Wasilewski is a wildlife biologist that specializes in working on the natural history of apex predators (crocodilians) within wetlands of south Florida. FPL consulted with Mr. Wasilewski and he stated "Since 1978, the numbers of nests and hatchlings have steadily risen, there have been 424 successful nests at Turkey Point and 6,597 hatchlings captured, processed and released.
The question remains as to carrying capacity of the cooling canal system. In April of 2005, American crocodiles were down listed from an Endangered Species to a Threatened Species. A major factor in the down listing was the success of the crocodile nesting at Turkey Point. Even though the CCS has historically been a super saline environment, there has always been access to fresh water and less saline refugia. During the normal course of the year the salinity and temperature fluctuates on a seasonal basis. Although the CCS temperatures are rising, the interior ponds should be constant in terms of temperature and salinity content. Crocodiles within the CCS have adapted to these changing salinities and temperature variations. They have the capability for access/egress on a daily basis. They typically use the CCS for feeding, nesting and rearing their young. Otherwise they move into and out of Biscayne Bay, C-107, C-106, the Interceptor Ditch." Based on the information provided by Mr. Wasilewski, a slight increase in temperature would likely have no effect on the Crocodile population using the CCS. FPL will continue to conduct the surveys described about to assess any potential impacts. The next survey is being conducted in August.
L-2014-232 Enclosure Page 4 of 5 120 110 10 70 -- CC5-1 60 *CCS-6 60 -CC" 50 1/1/11 7/20/11 2/5/12 8/23/12 3/11/13 9/27/13 4/25/14 Time Series Temperature Plot
L-2014-232 Enclosure Page 5 of 5 Figure 1 - Turkey Point Cooling Canal Sample Locations Go,.g*le earth miles~
ki I II A