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| {{#Wiki_filter:0 L-2014-25710 CFR 50.54(f)FPL. August 7, 2014U.S. Nuclear Regulatory CommissionAttn: Document Control DeskWashington, DC 20555-0001Re: Turkey Point Units 3 and 4Docket Nos. 50-250 and 50-251Renewed Facility Operating License Nos. DPR-31 and DPR-41 | | {{#Wiki_filter:0 L-2014-257 10 CFR 50.54(f)FPL. August 7, 2014U.S. Nuclear Regulatory Commission Attn: Document Control DeskWashington, DC 20555-0001 Re: Turkey Point Units 3 and 4Docket Nos. 50-250 and 50-251Renewed Facility Operating License Nos. DPR-31 and DPR-41 |
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| ==Subject:== | | ==Subject:== |
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| Supplemental Information Regarding the Flood Hazard Reevaluation | | Supplemental Information Regarding the Flood Hazard Reevaluation |
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| ==References:== | | ==References:== |
| : 1. NRC Letter, "Request for Information Pursuant to Title 10 of the Code of FederalRegulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," datedMarch 12, 2012, ML12073A348.2. NRC Letter, "Prioritization of Response Due Dates for Request for InformationPursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding FloodingHazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Reviewof Insights from the Fukushima Dai-ichi Accident," dated May 11, 2012,ML12097A509.3. Florida Power & Light Company Letter L-2013-087, "Response to NRC Request forInformation Pursuant to 10 CFR 5 0.54(f) Regarding the Flood Hazard Reevaluationof Recommendation 2.1," dated March 11, 2013.On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference 1to all power reactor licensees and holders of construction permits in active or deferredstatus, Enclosure 2 of Reference 1 contains specific Requested Actions, RequestedInformation and Required Responses associated with Recommendation 2.1 for FloodingHazard Reevaluation. Item 1 of the Requested Information asks for a Flood HazardReevaluation Report. In accordance with Reference 2, Florida Power & Light Company(FPL) submitted a Flood Hazard Reevaluation Report for Turkey Point Units 3 and 4 inReference 3.The purpose of this letter is to provide supplemental information regarding the FloodHazard Reevaluation Report. One of the reevaluated hazards is the hurricane stormsurge. As part of the flooding hazard reevaluation for the Integrated Assessment Report, A o)[Florida Power & Light Company9760 SW 344' Street, Florida City, FL 33035 LUL Florida Power & Light Company L-2014-257Flooding Hazard Reevaluation Supplemental InformationEnclosure Page 2 of 2new storm surge level and new wave run-up levels were determined for the storm surgehazard. Additionally, the wave run-up, which was previously evaluated only for the eastside of the power block, needs to be re-evaluated on all sides.This condition is captured in the Turkey Point Corrective Action Program. The newstorm and wave run-up levels were compared to the current licensing bases and it wasdetermined the flooding protection features were adequate to withstand the new stormand wave run up levels at the present time. This condition will be evaluated in theIntegrated Assessment for long term effects.This supplemental information was discussed with the NRC Staff on July 29, 2014.Based on the NRC/FPL discussion and because this condition will be addressed in theIntegrated Assessment Report no updates are needed at this time to the Flood HazardReevaluation Report. The Integrated Assessment Report will be submitted to the NRC asrequested in Item 2 of Enclosure 2 of Reference I prior to March 12, 2015 as provided inReference 3.This letter contains no new regulatory commitments.Should you have any questions concerning the content of this letter, please contact RobertJ. Tomonto, Licensing Manager, at (305) 746-7327.I declare under penalty of perjury that the foregoing is true and correct.Executed on August 7" , 2014.Sincerely,Michael KileyVice PresidentTurkey Point Nuclear Plant | | : 1. NRC Letter, "Request for Information Pursuant to Title 10 of the Code of FederalRegulations 50.54(f) |
| | Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," |
| | datedMarch 12, 2012, ML12073A348. |
| | : 2. NRC Letter, "Prioritization of Response Due Dates for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) |
| | Regarding FloodingHazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Reviewof Insights from the Fukushima Dai-ichi Accident," |
| | dated May 11, 2012,ML12097A509. |
| | : 3. Florida Power & Light Company Letter L-2013-087, "Response to NRC Request forInformation Pursuant to 10 CFR 5 0.54(f) Regarding the Flood Hazard Reevaluation of Recommendation 2.1," dated March 11, 2013.On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference 1to all power reactor licensees and holders of construction permits in active or deferredstatus, Enclosure 2 of Reference 1 contains specific Requested |
| | : Actions, Requested Information and Required Responses associated with Recommendation 2.1 for FloodingHazard Reevaluation. |
| | Item 1 of the Requested Information asks for a Flood HazardReevaluation Report. In accordance with Reference 2, Florida Power & Light Company(FPL) submitted a Flood Hazard Reevaluation Report for Turkey Point Units 3 and 4 inReference 3.The purpose of this letter is to provide supplemental information regarding the FloodHazard Reevaluation Report. One of the reevaluated hazards is the hurricane stormsurge. As part of the flooding hazard reevaluation for the Integrated Assessment Report, A o)[Florida Power & Light Company9760 SW 344' Street, Florida City, FL 33035 LUL Florida Power & Light Company L-2014-257 Flooding Hazard Reevaluation Supplemental Information Enclosure Page 2 of 2new storm surge level and new wave run-up levels were determined for the storm surgehazard. Additionally, the wave run-up, which was previously evaluated only for the eastside of the power block, needs to be re-evaluated on all sides.This condition is captured in the Turkey Point Corrective Action Program. |
| | The newstorm and wave run-up levels were compared to the current licensing bases and it wasdetermined the flooding protection features were adequate to withstand the new stormand wave run up levels at the present time. This condition will be evaluated in theIntegrated Assessment for long term effects.This supplemental information was discussed with the NRC Staff on July 29, 2014.Based on the NRC/FPL discussion and because this condition will be addressed in theIntegrated Assessment Report no updates are needed at this time to the Flood HazardReevaluation Report. The Integrated Assessment Report will be submitted to the NRC asrequested in Item 2 of Enclosure 2 of Reference I prior to March 12, 2015 as provided inReference 3.This letter contains no new regulatory commitments. |
| | Should you have any questions concerning the content of this letter, please contact RobertJ. Tomonto, Licensing |
| | : Manager, at (305) 746-7327. |
| | I declare under penalty of perjury that the foregoing is true and correct.Executed on August 7" , 2014.Sincerely, Michael KileyVice President Turkey Point Nuclear Plant |
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| ==Enclosure:== | | ==Enclosure:== |
| Supplement to Flooding Hazard Reevaluation Reportcc: USNRC Regional Administrator, Region II,USNRC Senior Resident Inspector Turkey PointUSNRC Project Manager for Turkey Point Florida Power & Light Company L-2014-257Flooding Hazard Reevaluation Supplemental InformationEnclosure Page 1 of 2Flooding Hazard ReevaluationSupplemental InformationEnclosureBackgroundNRC directives associated with the Fukushima Dai-ichi accident require that each site bereevaluated for certain natural hazards. Among these are flooding hazards that could impact safeoperation and shutdown of the units.A flooding hazard reevaluation report (FHRR) was completed in March 2013 and submitted tothe NRC to comply with the directive. One of the hazards that were reevaluated was hurricanestorm surge. A new storm surge level was determined as part of the reevaluation, and new waverun-up levels associated with the surge were also determined. These new storm surge levels andwave run-up were compared to the current licensing basis (CLB), and it was determined thatalthough margin had been lost, the flooding protection features were adequate to withstand thenew levels.The next step in the flooding hazard reevaluation, as prescribed by the NRC directive, is toperform an integrated assessment of flooding effects when the new hazard exceeds the CLB. Inthe process of performing this evaluation, it was determined that the wave run-up hazard that wasonly evaluated for the east side of the power block, similar to the CLB, needs to be considered allaround. A Condition Report was initiated in the Corrective Action Program to identify thediscrepancy and evaluate any interim measures needed until the integrated assessment iscompleted.Technical DiscussionThe FHRR determined that the existing eastern power-block flood barriers provide a margin of0.6 ft when considering the new hurricane storm surge, associated wave run-up, and sea levelrise. When the wave run-up is applied to the northern and southern power-block flood protectionwalls during the probable maximum storm surge (PMSS) there is a potential for the waves toovertop the barriers towards the end of plant life.The PMSS level presented in the FHRR includes a future, 20-year sea level rise component of0.4 feet, which does not characterize the present hazard. When future sea level rise is removedfrom the wave run-up calculation, a margin exists on the east, north, west, and south floodprotection walls. The margin on the east flood protection wall is 1.0 feet. The margin on thewest flood protection wall is 0.7 feet. The margin on the south flood protection wall is 0.2 feetwhile the margin on the north flood protection wall is 0.1 feet.However, when sea level rise is included, there is a potential overtopping on the north and southflood protection walls by 0.3 and 0.2 feet respectively. The overtopping would only occur Florida Power & Light CompanyFlooding Hazard Reevaluation Supplemental InformationEnclosureL-2014-257Page 2 of 2during the peak of the storm; for most of the event, the south flood protection wall would not beovertopped.Based on the above, no immediate actions are needed to address this hazard; however, thiscondition will need to be addressed in the long term.Immediate Actions TakenNone RequiredRecommended ActionsThe integrated assessment will document this condition and present options to address it. Thesemay include recommendations to monitor potential margin loss on the flood protection wallsthrough annual analysis of regional sea level rise and walkdowns of barrier walls or installationof protection features for the wave run-up hazard.}} | | |
| | Supplement to Flooding Hazard Reevaluation Reportcc: USNRC Regional Administrator, Region II,USNRC Senior Resident Inspector Turkey PointUSNRC Project Manager for Turkey Point Florida Power & Light Company L-2014-257 Flooding Hazard Reevaluation Supplemental Information Enclosure Page 1 of 2Flooding Hazard Reevaluation Supplemental Information Enclosure |
| | |
| | ===Background=== |
| | NRC directives associated with the Fukushima Dai-ichi accident require that each site bereevaluated for certain natural hazards. |
| | Among these are flooding hazards that could impact safeoperation and shutdown of the units.A flooding hazard reevaluation report (FHRR) was completed in March 2013 and submitted tothe NRC to comply with the directive. |
| | One of the hazards that were reevaluated was hurricane storm surge. A new storm surge level was determined as part of the reevaluation, and new waverun-up levels associated with the surge were also determined. |
| | These new storm surge levels andwave run-up were compared to the current licensing basis (CLB), and it was determined thatalthough margin had been lost, the flooding protection features were adequate to withstand thenew levels.The next step in the flooding hazard reevaluation, as prescribed by the NRC directive, is toperform an integrated assessment of flooding effects when the new hazard exceeds the CLB. Inthe process of performing this evaluation, it was determined that the wave run-up hazard that wasonly evaluated for the east side of the power block, similar to the CLB, needs to be considered allaround. A Condition Report was initiated in the Corrective Action Program to identify thediscrepancy and evaluate any interim measures needed until the integrated assessment iscompleted. |
| | Technical Discussion The FHRR determined that the existing eastern power-block flood barriers provide a margin of0.6 ft when considering the new hurricane storm surge, associated wave run-up, and sea levelrise. When the wave run-up is applied to the northern and southern power-block flood protection walls during the probable maximum storm surge (PMSS) there is a potential for the waves toovertop the barriers towards the end of plant life.The PMSS level presented in the FHRR includes a future, 20-year sea level rise component of0.4 feet, which does not characterize the present hazard. When future sea level rise is removedfrom the wave run-up calculation, a margin exists on the east, north, west, and south floodprotection walls. The margin on the east flood protection wall is 1.0 feet. The margin on thewest flood protection wall is 0.7 feet. The margin on the south flood protection wall is 0.2 feetwhile the margin on the north flood protection wall is 0.1 feet.However, when sea level rise is included, there is a potential overtopping on the north and southflood protection walls by 0.3 and 0.2 feet respectively. |
| | The overtopping would only occur Florida Power & Light CompanyFlooding Hazard Reevaluation Supplemental Information Enclosure L-2014-257 Page 2 of 2during the peak of the storm; for most of the event, the south flood protection wall would not beovertopped. |
| | Based on the above, no immediate actions are needed to address this hazard; however, thiscondition will need to be addressed in the long term.Immediate Actions TakenNone RequiredRecommended ActionsThe integrated assessment will document this condition and present options to address it. Thesemay include recommendations to monitor potential margin loss on the flood protection wallsthrough annual analysis of regional sea level rise and walkdowns of barrier walls or installation of protection features for the wave run-up hazard.}} |
Letter Sequence Request |
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MONTHYEARML14016A2772014-01-15015 January 2014
NRR E-mail Capture - Request for Additional Information - Turkey Point 3 & 4 - Flood Hazard Reevaluation Report (FHRR) - Recommendation 2.1 - Flooding (TACs MF1114/15)
Project stage: RAI
L-2014-023, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flood Hazard Reevaluation Report (Fhrr), Recommendation 2.1 - Flooding2014-01-31031 January 2014
Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flood Hazard Reevaluation Report (Fhrr), Recommendation 2.1 - Flooding
Project stage: Response to RAI
ML14036A2742014-02-0505 February 2014
NRR E-mail Capture - Request for Additional Information - Turkey Point 3 & 4 - Flood Hazard Reevaluation Report (FHRR) - Recommendation 2.1 - Flooding (TACs MF1114/15)
Project stage: RAI
L-2014-043, Response to Request for Additional Information 6, 10, and 11 Re Supplemental Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Re the Flooding Aspects of Recommendation 2.1 of Near-Term Task Force Review..2014-02-26026 February 2014
Response to Request for Additional Information 6, 10, and 11 Re Supplemental Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Re the Flooding Aspects of Recommendation 2.1 of Near-Term Task Force Review..
Project stage: Supplement
L-2014-116, Revised Response to Request for Additional Information Question Six Regarding Supplemental Response to NRC Request for Information Pursuant to 10CFR5054(f) Regarding the Flooding Aspects of Recommendation 2.1 of the Near.2014-04-25025 April 2014
Revised Response to Request for Additional Information Question Six Regarding Supplemental Response to NRC Request for Information Pursuant to 10CFR5054(f) Regarding the Flooding Aspects of Recommendation 2.1 of the Near.
Project stage: Supplement
L-2014-257, Supplemental Information Regarding the Flood Hazard Reevaluation2014-08-0707 August 2014
Supplemental Information Regarding the Flood Hazard Reevaluation
Project stage: Request
ML14324A8162014-12-0404 December 2014
Staff Assessment of Response to 10 CFR 50.54(f) Information Request - Flood-Causing Mechanism Reevaluation
Project stage: Acceptance Review
L-2017-124, Flooding Focused Evaluation Summary2017-06-29029 June 2017
Flooding Focused Evaluation Summary
Project stage: Other
2014-02-26
[Table View] |
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Category:Letter
MONTHYEARML24023A0342024-02-0505 February 2024
Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0038 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting))
L-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)
ML23341A2102024-01-22022 January 2024
LTR-23-0216-1 - Closure Letter - 2.206 Petition for License Renewal Plant Reactor Pressure Vessel Embrittlement
ML23320A3062024-01-22022 January 2024
Issuance of Amendment Nos. 298 and 291 Regarding Revising the Fire Protection Program in Support of Reactor Coolant Pump Seal Replacement Project
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
ML23340A0332023-12-0101 December 2023
FPL to Fws, Comments Submitted by Florida Power and Light on the Species Status Assessment Accompanying the September 20, 2023 Proposed Threatened Species Status with Section 4(d) Rule for the Miami Cave Crayfish
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,
ML23333A0152023-11-27027 November 2023
Attachment G - Arcadis Memo Re FPL Year 4 Raasr Final (June 2, 2023, Appended to Derm letter)-1
ML23333A0102023-11-27027 November 2023
Attachment B - 11/07/2022 - Waterkeeper Scoping Comments-1
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
IR 05000250/20230032023-11-0909 November 2023
Integrated Inspection Report 05000250/2023003 and 05000251/2023003
ML23310A1342023-11-0404 November 2023
10 CFR 2.206 Petition - LTR-23-0216-1 Petition Amendment; Turkey Point Subsequent Renewal with Petitioner 11/04/2023
ML24016A2622023-10-25025 October 2023
Subsequent License Renewal Updated List of Threatened and Endangered Species That May Occur in Your Proposed Project Location or May Be Affected Project
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
ML23346A1322023-10-0606 October 2023
Communication from C-10 Research & Education Foundation Regarding NextEra Common Emergency Fleet Plan License Amendment Request and Related Documents Subsequently Published
IR 05000250/20230102023-09-29029 September 2023
Biennial Problem Identification and Resolution Inspection Report 05000250/2023010 and 05000251/2023010
ML23234A1922023-09-27027 September 2023
Issuance of Amendment Nos. 297 and 290 Regarding Conversion to Improved Standard Technical Specifications
ML23265A5492023-09-22022 September 2023
Transmittal of WCAP-18830-P/NP Turkey Point Fuel Storage Criticality Analysis for 24 Month Cycles to Support a License Amendment Request from FPL - License Amendment Request 277 Updated Spent Fuel Pool Criticality Analysis
ML23243A9522023-09-0808 September 2023
Notice of Availability of the Draft Environmental Impact Statement for the Turkey Point Nuclear Generating Unit Numbers 3 and 4 Subsequent License Renewal Application
ML23243A9542023-09-0808 September 2023
Notice of Availability of the Draft Environmental Impact Statement for the Turkey Point Nuclear Generating Unit Numbers 3 and 4 Subsequent License Renewal Application
ML23243A9532023-09-0808 September 2023
Notice of Availability of the Draft Environmental Impact Statement for the Turkey Point Nuclear Generating Unit Numbers 3 and 4 Subsequent License Renewal Application
ML23243A9552023-09-0808 September 2023
Notice of Availability of the Draft Environmental Impact Statement for the Turkey Point Nuclear Generating Unit Numbers 3 and 4 Subsequent License Renewal Application - Tribe- Section 106 Letters
ML23199A2352023-09-0505 September 2023
Letter to EPA-Turkey Point Nuclear Generating Station, Units 3 and 4 - Notice of Availability of Draft Site-Specific Environmental Impact Statement for Subsequent License Renewal
ML23199A2482023-09-0505 September 2023
Ltr to Florida Power and Light Co - Turkey Point Nuclear Generating Units 3 and 4 - Notice of Availability of Draft Site-Specific Environmental Impact Statement for Subsequent License Renewal
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
IR 05000250/20230052023-08-21021 August 2023
Updated Inspection Plan for Turkey Point, Units 3 & 4 (Report 05000250/2023005 and 05000251/2023005)
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
IR 05000250/20230022023-08-14014 August 2023
Integrated Inspection Report 05000250/2023002 and 05000251/2023002
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
ML23242A0922023-08-0606 August 2023
Request for Withholding Information from Public Disclosure for Turkey Point Nuclear Generating Unit Nos. 3 and 4
ML23201A0872023-08-0303 August 2023
Audit Plan in Support of Review of License Amendment
ML23198A2702023-08-0303 August 2023
Issuance of the Site-Specific Environmental Impact Statement Scoping Process Summary Report Associated with the Turkey Point Nuclear Generating Unit Numbers 3 and 4, Subsequent License Renewal Application, Environmental Report Supplement 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
ML23178A1872023-07-25025 July 2023
Review of the Spring 2022 Steam Generator Tube Inspections During Refueling Outage No. 33
ML23188A1242023-07-20020 July 2023
Acknowledgment of Temporary Suspension Request for License Request for License Amendment Request Reactor Protection System, Engineered Safety Features System, and Nuclear Instrumentation System
ML23200A0672023-07-18018 July 2023
Tp 2023 RQ Inspection Notification Letter
ML23173A0812023-07-17017 July 2023
Supplement to Regulatory Audit Plan in Support of Review of License Amendment Request Supporting Digital Instrumentation & Control Modernization Project (EPID L-2022-LLA-0105) - Non-Proprietary
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)
2024-02-05
[Table view] |
Text
0 L-2014-257 10 CFR 50.54(f)FPL. August 7, 2014U.S. Nuclear Regulatory Commission Attn: Document Control DeskWashington, DC 20555-0001 Re: Turkey Point Units 3 and 4Docket Nos. 50-250 and 50-251Renewed Facility Operating License Nos. DPR-31 and DPR-41
Subject:
Supplemental Information Regarding the Flood Hazard Reevaluation
References:
- 1. NRC Letter, "Request for Information Pursuant to Title 10 of the Code of FederalRegulations 50.54(f)
Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident,"
datedMarch 12, 2012, ML12073A348.
- 2. NRC Letter, "Prioritization of Response Due Dates for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)
Regarding FloodingHazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Reviewof Insights from the Fukushima Dai-ichi Accident,"
dated May 11, 2012,ML12097A509.
- 3. Florida Power & Light Company Letter L-2013-087, "Response to NRC Request forInformation Pursuant to 10 CFR 5 0.54(f) Regarding the Flood Hazard Reevaluation of Recommendation 2.1," dated March 11, 2013.On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference 1to all power reactor licensees and holders of construction permits in active or deferredstatus, Enclosure 2 of Reference 1 contains specific Requested
- Actions, Requested Information and Required Responses associated with Recommendation 2.1 for FloodingHazard Reevaluation.
Item 1 of the Requested Information asks for a Flood HazardReevaluation Report. In accordance with Reference 2, Florida Power & Light Company(FPL) submitted a Flood Hazard Reevaluation Report for Turkey Point Units 3 and 4 inReference 3.The purpose of this letter is to provide supplemental information regarding the FloodHazard Reevaluation Report. One of the reevaluated hazards is the hurricane stormsurge. As part of the flooding hazard reevaluation for the Integrated Assessment Report, A o)[Florida Power & Light Company9760 SW 344' Street, Florida City, FL 33035 LUL Florida Power & Light Company L-2014-257 Flooding Hazard Reevaluation Supplemental Information Enclosure Page 2 of 2new storm surge level and new wave run-up levels were determined for the storm surgehazard. Additionally, the wave run-up, which was previously evaluated only for the eastside of the power block, needs to be re-evaluated on all sides.This condition is captured in the Turkey Point Corrective Action Program.
The newstorm and wave run-up levels were compared to the current licensing bases and it wasdetermined the flooding protection features were adequate to withstand the new stormand wave run up levels at the present time. This condition will be evaluated in theIntegrated Assessment for long term effects.This supplemental information was discussed with the NRC Staff on July 29, 2014.Based on the NRC/FPL discussion and because this condition will be addressed in theIntegrated Assessment Report no updates are needed at this time to the Flood HazardReevaluation Report. The Integrated Assessment Report will be submitted to the NRC asrequested in Item 2 of Enclosure 2 of Reference I prior to March 12, 2015 as provided inReference 3.This letter contains no new regulatory commitments.
Should you have any questions concerning the content of this letter, please contact RobertJ. Tomonto, Licensing
- Manager, at (305) 746-7327.
I declare under penalty of perjury that the foregoing is true and correct.Executed on August 7" , 2014.Sincerely, Michael KileyVice President Turkey Point Nuclear Plant
Enclosure:
Supplement to Flooding Hazard Reevaluation Reportcc: USNRC Regional Administrator, Region II,USNRC Senior Resident Inspector Turkey PointUSNRC Project Manager for Turkey Point Florida Power & Light Company L-2014-257 Flooding Hazard Reevaluation Supplemental Information Enclosure Page 1 of 2Flooding Hazard Reevaluation Supplemental Information Enclosure
Background
NRC directives associated with the Fukushima Dai-ichi accident require that each site bereevaluated for certain natural hazards.
Among these are flooding hazards that could impact safeoperation and shutdown of the units.A flooding hazard reevaluation report (FHRR) was completed in March 2013 and submitted tothe NRC to comply with the directive.
One of the hazards that were reevaluated was hurricane storm surge. A new storm surge level was determined as part of the reevaluation, and new waverun-up levels associated with the surge were also determined.
These new storm surge levels andwave run-up were compared to the current licensing basis (CLB), and it was determined thatalthough margin had been lost, the flooding protection features were adequate to withstand thenew levels.The next step in the flooding hazard reevaluation, as prescribed by the NRC directive, is toperform an integrated assessment of flooding effects when the new hazard exceeds the CLB. Inthe process of performing this evaluation, it was determined that the wave run-up hazard that wasonly evaluated for the east side of the power block, similar to the CLB, needs to be considered allaround. A Condition Report was initiated in the Corrective Action Program to identify thediscrepancy and evaluate any interim measures needed until the integrated assessment iscompleted.
Technical Discussion The FHRR determined that the existing eastern power-block flood barriers provide a margin of0.6 ft when considering the new hurricane storm surge, associated wave run-up, and sea levelrise. When the wave run-up is applied to the northern and southern power-block flood protection walls during the probable maximum storm surge (PMSS) there is a potential for the waves toovertop the barriers towards the end of plant life.The PMSS level presented in the FHRR includes a future, 20-year sea level rise component of0.4 feet, which does not characterize the present hazard. When future sea level rise is removedfrom the wave run-up calculation, a margin exists on the east, north, west, and south floodprotection walls. The margin on the east flood protection wall is 1.0 feet. The margin on thewest flood protection wall is 0.7 feet. The margin on the south flood protection wall is 0.2 feetwhile the margin on the north flood protection wall is 0.1 feet.However, when sea level rise is included, there is a potential overtopping on the north and southflood protection walls by 0.3 and 0.2 feet respectively.
The overtopping would only occur Florida Power & Light CompanyFlooding Hazard Reevaluation Supplemental Information Enclosure L-2014-257 Page 2 of 2during the peak of the storm; for most of the event, the south flood protection wall would not beovertopped.
Based on the above, no immediate actions are needed to address this hazard; however, thiscondition will need to be addressed in the long term.Immediate Actions TakenNone RequiredRecommended ActionsThe integrated assessment will document this condition and present options to address it. Thesemay include recommendations to monitor potential margin loss on the flood protection wallsthrough annual analysis of regional sea level rise and walkdowns of barrier walls or installation of protection features for the wave run-up hazard.
