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| | number = ML18047A036 | | | number = ML18047A036 |
| | issue date = 02/05/2018 | | | issue date = 02/05/2018 |
| | title = 2018/02/05 NRR E-mail Capture - Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272) | | | title = NRR E-mail Capture - Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272) |
| | author name = Wentzel M J | | | author name = Wentzel M |
| | author affiliation = NRC/NRR/DORL/LPLII-2 | | | author affiliation = NRC/NRR/DORL/LPLII-2 |
| | addressee name = Czaya P F, Mihalakea S | | | addressee name = Czaya P, Mihalakea S |
| | addressee affiliation = Florida Power & Light Co | | | addressee affiliation = Florida Power & Light Co |
| | docket = 05000250, 05000251 | | | docket = 05000250, 05000251 |
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| | document type = E-Mail, Request for Additional Information (RAI) | | | document type = E-Mail, Request for Additional Information (RAI) |
| | page count = 3 | | | page count = 3 |
| | project = EPID:L-2017-LLA-0272 | | | project = CAC:MG0143, EPID:L-2017-LLA-0272 |
| | stage = Draft RAI | | | stage = Draft RAI |
| }} | | }} |
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| =Text= | | =Text= |
| {{#Wiki_filter:1NRR-DMPSPEm ResourceFrom:Wentzel, MichaelSent:Monday, February 05, 2018 10:17 AMTo:Czaya, Paul; Mihalakea, StavroulaCc:robert.hess@fpl.com; Mack, Jarrett; Hanek, Olga | | {{#Wiki_filter:NRR-DMPSPEm Resource From: Wentzel, Michael Sent: Monday, February 05, 2018 10:17 AM To: Czaya, Paul; Mihalakea, Stavroula Cc: robert.hess@fpl.com; Mack, Jarrett; Hanek, Olga |
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| ==Subject:== | | ==Subject:== |
| Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272)Good morning Paul and Stavy, By application dated August 23, 2017, as supplemented by letter dated October 19, 2017 (Agencywide Documents and Access Management System (ADAMS) Accession Nos. ML17235B008 and ML17292A789, respectively), Florida Power & Light Company (FPL, the licensee) submitted License Amendment Request (LAR) No. 255 for Turkey Point Nuclear Generating Unit Nos. 3 and 4 (Turkey Point). The proposed amendments would revise the Technical Specifications (TSs) to relocate the Explosive Gas Monitoring Instrumentation, Explosive Gas Mixture, and Gas Decay Tanks System requirements to licensee-controlled documents and establish a Gas Decay Tank Explosive Gas and Radioactivity Monitoring Program. The proposed amendments also relocate the Standby Feedwater System requirements to licensee-controlled documents and modify related Auxiliary Feedwater (AFW) System requirements. The U.S. Nuclear Regulatory Commission's (NRC's) Containment and Plant Systems Branch (SCPB) staff reviewed the application and identified areas where it needs additional information to support its review. The draft request for additional information (RAI) is provided below. Please let me know by February 12, 2018, if a clarification call is needed and if the draft RAI contains any proprietary information. If a clarification call is not needed, please let me know if FPL can respond to the RAI by March 7, 2018. | | Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272) |
| Background The requirements of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.36, "Technical Specifications," specify that each Operating License issued by the Commission contain TSs that include limiting conditions for operation (LCOs), which are the lowest functional capability or performance levels of equipment required for safe operation of the facility. Section 50.36(c)(2)(ii) of 10 CFR provides the four criteria to define the scope of equipment and parameters to be included in the TS LCOs. Criterion 4 states, "A structure, system, or component which operating experience or probabilistic risk assessment has shown to be significant to public health and safety." NUREG-1431, Volume 2, "Standard Technical Specifications - Westinghouse Plants" identifies LCOs for the following systems as meeting Criterion 4: | | Good morning Paul and Stavy, By application dated August 23, 2017, as supplemented by letter dated October 19, 2017 (Agencywide Documents and Access Management System (ADAMS) Accession Nos. ML17235B008 and ML17292A789, respectively), Florida Power & Light Company (FPL, the licensee) submitted License Amendment Request (LAR) No. 255 for Turkey Point Nuclear Generating Unit Nos. 3 and 4 (Turkey Point). The proposed amendments would revise the Technical Specifications (TSs) to relocate the Explosive Gas Monitoring Instrumentation, Explosive Gas Mixture, and Gas Decay Tanks System requirements to licensee-controlled documents and establish a Gas Decay Tank Explosive Gas and Radioactivity Monitoring Program. The proposed amendments also relocate the Standby Feedwater System requirements to licensee-controlled documents and modify related Auxiliary Feedwater (AFW) System requirements. |
| | The U.S. Nuclear Regulatory Commissions (NRCs) Containment and Plant Systems Branch (SCPB) staff reviewed the application and identified areas where it needs additional information to support its review. The draft request for additional information (RAI) is provided below. |
| | Please let me know by February 12, 2018, if a clarification call is needed and if the draft RAI contains any proprietary information. If a clarification call is not needed, please let me know if FPL can respond to the RAI by March 7, 2018. |
| | |
| | ===Background=== |
| | The requirements of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.36, Technical Specifications, specify that each Operating License issued by the Commission contain TSs that include limiting conditions for operation (LCOs), which are the lowest functional capability or performance levels of equipment required for safe operation of the facility. Section 50.36(c)(2)(ii) of 10 CFR provides the four criteria to define the scope of equipment and parameters to be included in the TS LCOs. Criterion 4 states, A structure, system, or component which operating experience or probabilistic risk assessment has shown to be significant to public health and safety. |
| | NUREG-1431, Volume 2, Standard Technical Specifications - Westinghouse Plants identifies LCOs for the following systems as meeting Criterion 4: |
| * the remote shutdown systems for control room evacuation | | * the remote shutdown systems for control room evacuation |
| * the reactor coolant system loops in Modes 4 and 5 for decay heat removal and boron mixing | | * the reactor coolant system loops in Modes 4 and 5 for decay heat removal and boron mixing |
| * the residual heat removal system for coolant circulation in Mode 6 These systems support essential safety functions such as decay heat removal and reactivity management. | | * the residual heat removal system for coolant circulation in Mode 6 These systems support essential safety functions such as decay heat removal and reactivity management. |
| The Turkey Point TSs contain similar requirements for the reactor coolant system loops and the residual heat removal (RHR) system. For example, Turkey Point TS LCO 3.4.1.3, "Reactor Coolant System - Hot Shutdown," identifies five decay heat removal paths consisting of the three reactor coolant loops (i.e., the loop 2piping and the associated steam generator and reactor coolant pump) and the two RHR loops. The LCO specifies that at least two of these decay heat removal paths be operable and one be in operation. | | The Turkey Point TSs contain similar requirements for the reactor coolant system loops and the residual heat removal (RHR) system. For example, Turkey Point TS LCO 3.4.1.3, Reactor Coolant System - Hot Shutdown, identifies five decay heat removal paths consisting of the three reactor coolant loops (i.e., the loop 1 |
| The AFW system at Turkey Point consists of three turbine-driven pumps operated in two trains that are shared between the two units. Since the AFW pumps are all steam-driven and located in a single fire area, they could be susceptible to failure from a single cause.
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| As described in Section 9.11.2, "Auxiliary Feedwater Pumps," of the Turkey Point Updated Final Safety Analysis Report (UFSAR), the standby steam generator feedwater pumps (SSGFPs) consist of one motor-driven pump and one diesel-engine-driven pump with an integral fuel tank and electric starting system. The SSGFPs are used to supply feedwater to the steam generators during normal start-up, shutdown, and hot standby conditions. In case of loss of offsite power, the normal safety supply of feedwater to the steam generators is provided by the steam turbine-driven AFW pumps. However, feedwater can also be supplied by the diesel engine-driven SSGFP. In addition, the current standby feedwater system TS bases state the following, in part: "The function of the Standby Feedwater System for OPERABILITY determinations is that it can be used as a backup to the Auxiliary Feedwater (AFW) System in the event the AFW System does NOT function properly." | | piping and the associated steam generator and reactor coolant pump) and the two RHR loops. The LCO specifies that at least two of these decay heat removal paths be operable and one be in operation. |
| | The AFW system at Turkey Point consists of three turbine-driven pumps operated in two trains that are shared between the two units. Since the AFW pumps are all steam-driven and located in a single fire area, they could be susceptible to failure from a single cause. |
| | As described in Section 9.11.2, Auxiliary Feedwater Pumps, of the Turkey Point Updated Final Safety Analysis Report (UFSAR), the standby steam generator feedwater pumps (SSGFPs) consist of one motor-driven pump and one diesel-engine-driven pump with an integral fuel tank and electric starting system. The SSGFPs are used to supply feedwater to the steam generators during normal start-up, shutdown, and hot standby conditions. In case of loss of offsite power, the normal safety supply of feedwater to the steam generators is provided by the steam turbine-driven AFW pumps. However, feedwater can also be supplied by the diesel engine-driven SSGFP. In addition, the current standby feedwater system TS bases state the following, in part: "The function of the Standby Feedwater System for OPERABILITY determinations is that it can be used as a backup to the Auxiliary Feedwater (AFW) System in the event the AFW System does NOT function properly." |
| | Section 9.3 of the Turkey Point UFSAR describes that the RHR system inlet from the reactor coolant system consists of a single line with two normally closed isolation valves in series. Therefore, a failure of one of the two isolation valves to open would prevent use of either RHR loop as a decay heat removal path. |
| | SCPB RAI 1 As noted in LAR, the standby feedwater system is specifically credited for the AFW decay heat removal function for a fire in the AFW pump area. The system also could support the decay heat removal function above RHR entry conditions and below the reactor coolant system temperature necessary for adequate steam pressure to operate the turbine-driven AFW pumps. Neither the LAR, nor the supplement, provides a discussion of the safety-significance of these particular functions for the Turkey Point. This information is necessary for the staff to evaluate whether this item satisfies Criterion 4 of 10 CFR 50.36(c)(2)(ii). |
| | The standby feedwater system pumps could be necessary to support decay heat removal and coolant circulation when the reactor is in Mode 4, relying on the steam generators for decay heat removal, and the steam pressure is insufficient for the turbine-driven AFW pumps. Identify periods, as prescribed by procedures, during normal plant operations (i.e., heatup, startup, shutdown, and cooldown), abnormal operating conditions (e.g., valve failure to operate), and emergency operations where the standby feedwater system pumps would be part of the primary means of adding water to the steam generators for decay heat removal in Mode 4. |
| | Describe any Turkey Point-specific operating experience where the standby feedwater pumps were used for decay heat removal when the AFW pumps were not available and/or RHR entry conditions were not satisfied. |
| | SCPB RAI 2 In the LAR supplement dated October 19, 2017, the licensee indicates for internal events and flooding events, a sensitivity analysis was done by increasing the failure probability of the SSGFPs by two orders of magnitude. |
| | The licensee further states that this results in the systems contribution to Turkey Points core damage frequency (CDF) remaining below 1E-6 per year. Clarify whether the safety analysis includes any shutdown modes. Provide a comparison between the standby feedwater system pumps and other safety-related components that support similar decay heat removal functions using standard measures of safety significance. |
| | 2 |
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| Section 9.3 of the Turkey Point UFSAR describes that the RHR system inlet from the reactor coolant system consists of a single line with two normally closed isolation valves in series. Therefore, a failure of one of the two isolation valves to open would prevent use of either RHR loop as a decay heat removal path.
| | Hearing Identifier: NRR_DMPS Email Number: 167 Mail Envelope Properties (Michael.Wentzel@nrc.gov20180205101700) |
| | |
| SCPB RAI 1 As noted in LAR, the standby feedwater system is specifically credited for the AFW decay heat removal function for a fire in the AFW pump area. The system also could support the decay heat removal function above RHR entry conditions and below the reactor coolant system temperature necessary for adequate steam pressure to operate the turbine-driven AFW pumps. Neither the LAR, nor the supplement, provides a discussion of the safety-significance of these particular functions for the Turkey Point. This information is necessary for the staff to evaluate whether this item satisfies Criterion 4 of 10 CFR 50.36(c)(2)(ii). The standby feedwater system pumps could be necessary to support decay heat removal and coolant circulation when the reactor is in Mode 4, relying on the steam generators for decay heat removal, and the steam pressure is insufficient for the turbine-driven AFW pumps. Identify periods, as prescribed by procedures, during normal plant operations (i.e., heatup, startup, shutdown, and cooldown), abnormal operating conditions (e.g., valve failure to operate), and emergency operations where the standby feedwater system pumps would be part of the primary means of adding water to the steam generators for decay heat removal in Mode 4. Describe any Turkey Point-specific operating experience where the standby feedwater pumps were used for decay heat removal when the AFW pumps were not available and/or RHR entry conditions were not satisfied.
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| SCPB RAI 2 In the LAR supplement dated October 19, 2017, the licensee indicates for internal events and flooding events, a sensitivity analysis was done by increasing the failure probability of the SSGFPs by two orders of magnitude. The licensee further states that this results in the system's contribution to Turkey Point's core damage frequency (CDF) remaining below 1E-6 per year. Clarify whether the safety analysis includes any shutdown modes. Provide a comparison between the standby feedwater system pumps and other safety-related components that support similar decay heat removal functions using standard measures of safety significance.
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| Hearing Identifier: NRR_DMPS Email Number: 167 Mail Envelope Properties (Michael.Wentzel@nrc.gov20180205101700) | |
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| ==Subject:== | | ==Subject:== |
| Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272) Sent Date: 2/5/2018 10:17:04 AM Received Date: 2/5/2018 10:17:00 AM From: Wentzel, Michael Created By: Michael.Wentzel@nrc.gov Recipients: "robert.hess@fpl.com" <robert.hess@fpl.com> Tracking Status: None "Mack, Jarrett" <Jarrett.Mack@fpl.com> Tracking Status: None "Hanek, Olga" <Olga.Hanek@fpl.com> | | Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272) |
| Tracking Status: None "Czaya, Paul" <Paul.Czaya@fpl.com> Tracking Status: None "Mihalakea, Stavroula" <Stavroula.Mihalakea@fpl.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 6802 2/5/2018 10:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: | | Sent Date: 2/5/2018 10:17:04 AM Received Date: 2/5/2018 10:17:00 AM From: Wentzel, Michael Created By: Michael.Wentzel@nrc.gov Recipients: |
| }} | | "robert.hess@fpl.com" <robert.hess@fpl.com> |
| | Tracking Status: None "Mack, Jarrett" <Jarrett.Mack@fpl.com> |
| | Tracking Status: None "Hanek, Olga" <Olga.Hanek@fpl.com> |
| | Tracking Status: None "Czaya, Paul" <Paul.Czaya@fpl.com> |
| | Tracking Status: None "Mihalakea, Stavroula" <Stavroula.Mihalakea@fpl.com> |
| | Tracking Status: None Post Office: |
| | Files Size Date & Time MESSAGE 6802 2/5/2018 10:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: |
| | Recipients Received:}} |
Letter Sequence Draft RAI |
|---|
CAC:MG0143, (Open) EPID:L-2017-LLA-0272, License Amendment Request 255, Relocate Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications to Licensee Controlled Documents (Open) |
|
MONTHYEARL-2017-110, License Amendment Request 255, Relocate Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications to Licensee Controlled Documents2017-08-23023 August 2017
License Amendment Request 255, Relocate Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications to Licensee Controlled Documents
Project stage: Request
L-2017-188, Supplemental Information for License Amendment Request 255, Relocate the Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications to Licensee Controlled Documents2017-10-19019 October 2017
Supplemental Information for License Amendment Request 255, Relocate the Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications to Licensee Controlled Documents
Project stage: Supplement
L-2017-213, License Amendment Request 256, One-Time Extension of 3A Containment Spray (CS) Pump Completion Time2017-12-18018 December 2017
License Amendment Request 256, One-Time Extension of 3A Containment Spray (CS) Pump Completion Time
Project stage: Request
ML18047A0362018-02-0505 February 2018
NRR E-mail Capture - Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272)
Project stage: Draft RAI
ML18047A0352018-02-15015 February 2018
NRR E-mail Capture - Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272)
Project stage: RAI
L-2018-075, Response to Request for Additional Information Regarding License Amendment Request 255, Relocate the Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications ...2018-03-27027 March 2018
Response to Request for Additional Information Regarding License Amendment Request 255, Relocate the Explosive Gas Monitoring, Gas Decay Tanks and Standby Feedwater System Technical Specifications ...
Project stage: Response to RAI
2017-08-23
[Table View] |
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Category:E-Mail
MONTHYEARML24282A6722024-10-0808 October 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24261B8062024-09-17017 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24250A0852024-09-0606 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24250A0242024-09-0606 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24248A0822024-09-0303 September 2024
NRR E-mail Capture - Acceptance Review for Turkey Point Alternative Request VR-02 for Certain Motor-Operated Isolation Valves (L-2024-LLR-0059)
ML24234A0842024-08-21021 August 2024
Notification of Inspection and Request for Information
ML24234A0142024-08-20020 August 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Spent Fuel Storage License Amendment Request (LAR) (L-2023-LLA-0142)
ML24170A9352024-06-18018 June 2024
NRR E-mail Capture - Supplement to Audit Plan - Turkey Point - 18 to 24 Month Fuel Cycle LAR (L-2023-LLA-0161)
ML24149A3532024-05-24024 May 2024
Change in Estimated Review Schedule for Nextera Common Emergency Plan Amendment
ML24130A0112024-05-0808 May 2024
NRR E-mail Capture - Acceptance Review - Turkey Point 3 and 4 - Sixth 10-Year Inservice Testing Interval Proposed Alternative PR-02 (L-2024-LLR-0029)
ML24122C6922024-05-0101 May 2024
NextEra Fleet EP Amendment - Demonstration Drill
ML24113A0372024-04-22022 April 2024
NRR E-mail Capture - Acceptance Review - Turkey Point 3 and 4 and St. Lucie 2 - Request to Use Later Code of ASME (L-2024-LLR-0024)
ML24107A9062024-04-11011 April 2024
Fws to NRC, Response to Notification of Final EIS for Turkey Point SLR
ML24102A2772024-04-11011 April 2024
NRR E-mail Capture - Audit Plan - Turkey Point - Spent Fuel Pool Criticality License Amendment Request (LAR) (L-2023-LLA-0142)
ML24102A1692024-04-11011 April 2024
NRR E-mail Capture - Audit Plan - Turkey Point - 18 to 24 Month Fuel Cycle License Amendment Request (LAR) (L-2023-LLA-0161)
ML24101A0592024-04-11011 April 2024
NRC to Fws, Notification of Nrc’S Issuance of the Final EIS for Turkey Point Subsequent License Renewal
ML24101A0602024-04-11011 April 2024
NRC to NMFS, Notification of Nrc’S Issuance of the Final EIS for Turkey Point Subsequent License Renewal
ML24024A0182024-01-24024 January 2024
LTR-23-0216-1 - (E-Mail) Turkey Point Nuclear Plant, Units 3 and 4 - 10 CFR 2.206 Petition -Turkey Point and PWR RPV Embrittlement E-Mail Closure Letter to Petitioner, January 23, 2024
ML24023A0622024-01-10010 January 2024
10 CFR 2.206 Petition - LTR-23-0216-1 - Turkey Point and PWR RPV Embrittlement - E-mail Final Determination Status to Petitioner - 1-10-2024 - L-2023-CRS-0005
IR 05000250/20240102024-01-0505 January 2024
Focused Engineering Inspection 05000250/2024010 and 05000251/2024010
ML23347A0772023-12-13013 December 2023
NRR E-mail Capture - Acceptance Review - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - LAR to Transition to 24-Month Fuel Cycles (L-2023-LLA-00161)
ML23341A0602023-12-0707 December 2023
NRR E-mail Capture - Acceptance Review - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Exemption Request for Use of Axiom Fuel Cladding (L-2023-LLE-0036)
ML23317A3752023-11-0808 November 2023
NRR E-mail Capture - Acceptance Review - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - LAR to Update SFP Criticality Analysis (L-2023-LLA-0142)
ML23307A2382023-11-0303 November 2023
10 CFR 2.206 Petition - LTR-23-0216-1 - Initial Assessment; Turkey Point Subsequent License Renewal with Petitioner 11/3/2023 - L-2023-CRS-0005
ML23333A0092023-10-27027 October 2023
Attachment a - NRC Extension of Comment Period-1
ML23265A2692023-09-15015 September 2023
Turkey Point,_Rp Document Request 2023-004
ML23226A0752023-08-14014 August 2023
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - RCP LAR (L-2022-LLA-0128)
ML23173A1522023-06-22022 June 2023
Request for Additional Information NextEra Fleet Emergency Plan Amendment Request
ML23171B0532023-06-20020 June 2023
NRR E-mail Capture - Change in Estimated Review Schedule for Turkey Point Improved Standard Technical Specifications (ITS) LAR (L-2022-LLI-0002)
ML23198A0592023-05-22022 May 2023
FPL to Fws, Notification of Doa Crocodile in CCS on 5/22/23
ML23138A0212023-05-17017 May 2023
Telephone Record, Call with Florida Power and Light Regarding Decommissioning Funding Plan Update Dated March 30, 2021
ML23129A8322023-05-0505 May 2023
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - RCP LAR (L-2022-LLA-0128)
ML23109A1862023-04-19019 April 2023
And Turkey Point – Acceptance of Requested Licensing Action Proposed Alternative to Asme Section XI Authorizing Implementation of Asme Code Case N-752-1
ML23117A2712023-04-11011 April 2023
NRR E-mail Capture - (External_Sender) Updated Data for Doa Turkey Point American Crocodile at 4/10/2023
ML23067A2812023-03-0808 March 2023
NRR E-mail Capture - (External_Sender) Non-causal American Croc Doa Turkey Point
ML23038A1892023-02-0303 February 2023
RP RFI April 2023
ML23006A0262023-01-0505 January 2023
NRR E-mail Capture - Audit Plan - Turkey Point Fire Protection Changes to Support RCP Seal Replacement LAR
ML22311A4752022-11-0707 November 2022
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - ITS
ML22293B6562022-10-18018 October 2022
Request for 45 Day Extension of Comment Period of Turkey Point Subsequent License Renewal Scoping Process, Docket Id NRC-2022-0172 by Natural Resources Defense Council, Miami Waterkeeper and Counsel for Friends of the Earth
ML22265A1522022-09-21021 September 2022
NRR E-mail Capture - Acceptance Review - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - LAR to Revise Fire Protection Program (L-2022-LLA-0128)
ML22258A1862022-09-15015 September 2022
NRR E-mail Capture - Turkey Point Unit Nos. 3 and 4 - Supplemental Information Needed for Acceptance of Requested Licensing Action License Amendment Requests to Replace Instrumentation with Digital Systems
ML22181A0562022-06-30030 June 2022
NRR E-mail Capture - Request for Additional Information - Turkey Point U3 Sgtir (L-2022-LRO-0070)
ML22178A1032022-06-25025 June 2022
NRR E-mail Capture - (External_Sender) Turkey Point Doa American Crocodile 6/25/22
ML22147A0672022-05-19019 May 2022
NRR E-mail Capture - (External_Sender) Turkey Point Doa Crocodile 05/19/2022
ML22095A0162022-04-0505 April 2022
NRR E-mail Capture - Verbal Authorization of Turkey Point Nuclear Plant Unit 3 - Icw Relief Request No. 10-II
ML22081A0292022-03-21021 March 2022
NRR E-mail Capture - Turkey Point Nuclear Generating Unit No. 3 - Request for Additional Information - Icw Alternative
ML22018A0272022-01-18018 January 2022
2022 All RFI Responses - Exercise and Program Inspections - Revl
ML21302A0052021-12-23023 December 2021
Email to Nextera/Fpl Re Discussion of Availability of Human Factor Validation Information to Support the Planned Turkey Point Digital I&C License Amendment Request
ML21307A2882021-11-18018 November 2021
NRC to Fws, Request to Reinitiate Endangered Species Act Section 7 Consultation for Continued Operation of Turkey Point
ML21298A0572021-10-25025 October 2021
NRR E-mail Capture - Final: Tpn Request for Additional Information - Round 2 Concerning Relief Request 10 - Extension EPID: L-2021-LLR-0077
2024-09-06
[Table view]
Category:Request for Additional Information (RAI)
MONTHYEARML24282A6722024-10-0808 October 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24261B8062024-09-17017 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24250A0242024-09-0606 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24250A0852024-09-0606 September 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Transition to 24-Month Fuel Cycles (L-2023-LLA-0161)
ML24234A0842024-08-21021 August 2024
Notification of Inspection and Request for Information
ML24234A0142024-08-20020 August 2024
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - Spent Fuel Storage License Amendment Request (LAR) (L-2023-LLA-0142)
ML24193A2432024-07-12012 July 2024
– Interim Audit Summary Report in Support of Review of License Amendment Requests Regarding Fleet Emergency Plan
IR 05000250/20240102024-01-0505 January 2024
Focused Engineering Inspection 05000250/2024010 and 05000251/2024010
ML23226A0752023-08-14014 August 2023
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - RCP LAR (L-2022-LLA-0128)
ML23173A1522023-06-22022 June 2023
Request for Additional Information NextEra Fleet Emergency Plan Amendment Request
ML23129A8322023-05-0505 May 2023
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - RCP LAR (L-2022-LLA-0128)
ML23038A1892023-02-0303 February 2023
RP RFI April 2023
ML22311A5582022-11-22022 November 2022
Supplemental Information Needed for Acceptance of Requested Licensing Action Amendment Request for Cep
ML22311A4752022-11-0707 November 2022
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Request for Additional Information - ITS
IR 05000250/20234012022-10-19019 October 2022
Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000250/2023401 and 05000251/2023401
ML22255A0502022-09-15015 September 2022
Supplemental Information Needed for Acceptance of Requested Licensing Action License Amendment Request to Replace Instrumentation with Digital Systems
ML22229A5332022-08-18018 August 2022
Notification of Target Set Inspection and Request for Information (NRC Inspection Report No. 05000250 2022402 and 05000251 2022402)
ML22181A0562022-06-30030 June 2022
NRR E-mail Capture - Request for Additional Information - Turkey Point U3 Sgtir (L-2022-LRO-0070)
ML22081A0292022-03-21021 March 2022
NRR E-mail Capture - Turkey Point Nuclear Generating Unit No. 3 - Request for Additional Information - Icw Alternative
ML22068A2352022-03-17017 March 2022
Licensed Operator Positive Fitness-For-Duty Test
ML22074A0932022-03-14014 March 2022
RP RFI March 2022
ML21342A2932021-12-21021 December 2021
Supplemental Information Needed for Acceptance of Requested License Amendment Request Concerning Technical Specification Conversion to NUREG-1431, Revision 5
ML21298A0572021-10-25025 October 2021
NRR E-mail Capture - Final: Tpn Request for Additional Information - Round 2 Concerning Relief Request 10 - Extension EPID: L-2021-LLR-0077
ML21291A1272021-10-14014 October 2021
NRR E-mail Capture - Request for Additional Information - Fifth Ten-Year Inservice Inspection Interval Relief Request No.10 - Extension (L-2021-LLR-0077)
ML21270A1652021-09-27027 September 2021
NRR E-mail Capture - Turkey Point Request for Additional Information Concerning Full Spectrum LOCA Methodology - EPID L-2021-LLA-0070
ML21252A2142021-09-0101 September 2021
NRR E-mail Capture - Final: Turkey Point Units 3 and 4 - Request for Additional Information Concerning Relief Requests 8 and 9
ML21238A3282021-08-26026 August 2021
RP RFI October 2020
ML20315A0182020-11-10010 November 2020
Notification of Inspection and Request for Information for NRC Problem Identification and Resolution Inspection
ML20149K6262020-05-27027 May 2020
NRR E-mail Capture - Turkey Point Unit 4 - Request for Additional Information Concerning 2019 Steam Generator Tube Inspections
ML20122A1172020-05-0101 May 2020
NRR E-mail Capture - Final: Turkey Point Units 3 and 4 Request for Additional Information Concerning Emergency Action Level Scheme Change (EPID L-2019-LLA-0271) (FPL: L-2019-203)
ML20104B2232020-04-0909 April 2020
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ML20084G5622020-03-20020 March 2020
NRR E-mail Capture - Turkey Point Containment Radiation Monitors Request for Additional Information
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Notification of Inspection and Request for Information
ML19184A1002019-07-0303 July 2019
NRR E-mail Capture - Turkey Point Nuclear Generating Unit Nos. 3 and 4, Request for Additional Information Regarding License Amendment Request 266
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Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 11 (EPID No. L-2018-RNW-0002) - Enclosure
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Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 10 (EPID No. L-2018-RNW-0002) - Enclosure
ML19073A0042019-03-14014 March 2019
Safety RAIs - Set 10 - Draft
ML19053A6122019-02-22022 February 2019
Response Date Extension for RAIs Set 8, Revision 1, for the Safety Review of the Turkey Point Subsequent License Renewal Application
ML19037A3982019-02-0606 February 2019
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 9 (EPID No. L-2018-RNW-0002) - Enclosure
ML19032A3972019-02-0101 February 2019
SLRA Request for Additional Information RAIs 3.5.2.2.2.6 Revision 1 Set 8 Final
ML19016A2332019-01-16016 January 2019
NRR E-mail Capture - Request for Additional Information - Turkey Point LAR 265 PRA - NFPA RCP Seals - EPID L-2018-LLA-0280
ML18341A0052019-01-15015 January 2019
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 8 (EPID No. L-2018-RNW-0002) - Enclosure
ML18341A0042019-01-15015 January 2019
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 8 (EPID No. L-2018-RNW-0002) - E-Mail
ML18348A5852018-12-13013 December 2018
Emergency Preparedness Inspection and Request for Information
ML18318A4332018-11-19019 November 2018
Supplemental Information Needed for Acceptance of License Amendment Request to Revise NFPA 805 License Condition for Reactor Coolant Pump Seals
ML18292A7462018-10-31031 October 2018
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application; Set 7 (EPID No. L-2018-RNW-0002) - Enclosure
ML18269A2282018-10-0404 October 2018
Request for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 6 (EPID No. L-2018-RNW-0002) - Enclosure
ML18269A2102018-10-0101 October 2018
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 4 (EPID L-2018-RNW-0002) - Enclosure
ML18243A0072018-09-17017 September 2018
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application - Set 3 (EPID No. L-2018-RNW-0002) - Email
ML18259A0002018-09-17017 September 2018
Requests for Additional Information for the Safety Review of the Turkey Point Subsequent License Renewal Application; Set 3 (EPID No. L-2018-RNW-0002) - Enclosure 2
2024-09-06
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Text
NRR-DMPSPEm Resource From: Wentzel, Michael Sent: Monday, February 05, 2018 10:17 AM To: Czaya, Paul; Mihalakea, Stavroula Cc: robert.hess@fpl.com; Mack, Jarrett; Hanek, Olga
Subject:
Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272)
Good morning Paul and Stavy, By application dated August 23, 2017, as supplemented by letter dated October 19, 2017 (Agencywide Documents and Access Management System (ADAMS) Accession Nos. ML17235B008 and ML17292A789, respectively), Florida Power & Light Company (FPL, the licensee) submitted License Amendment Request (LAR) No. 255 for Turkey Point Nuclear Generating Unit Nos. 3 and 4 (Turkey Point). The proposed amendments would revise the Technical Specifications (TSs) to relocate the Explosive Gas Monitoring Instrumentation, Explosive Gas Mixture, and Gas Decay Tanks System requirements to licensee-controlled documents and establish a Gas Decay Tank Explosive Gas and Radioactivity Monitoring Program. The proposed amendments also relocate the Standby Feedwater System requirements to licensee-controlled documents and modify related Auxiliary Feedwater (AFW) System requirements.
The U.S. Nuclear Regulatory Commissions (NRCs) Containment and Plant Systems Branch (SCPB) staff reviewed the application and identified areas where it needs additional information to support its review. The draft request for additional information (RAI) is provided below.
Please let me know by February 12, 2018, if a clarification call is needed and if the draft RAI contains any proprietary information. If a clarification call is not needed, please let me know if FPL can respond to the RAI by March 7, 2018.
Background
The requirements of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.36, Technical Specifications, specify that each Operating License issued by the Commission contain TSs that include limiting conditions for operation (LCOs), which are the lowest functional capability or performance levels of equipment required for safe operation of the facility. Section 50.36(c)(2)(ii) of 10 CFR provides the four criteria to define the scope of equipment and parameters to be included in the TS LCOs. Criterion 4 states, A structure, system, or component which operating experience or probabilistic risk assessment has shown to be significant to public health and safety.
NUREG-1431, Volume 2, Standard Technical Specifications - Westinghouse Plants identifies LCOs for the following systems as meeting Criterion 4:
The Turkey Point TSs contain similar requirements for the reactor coolant system loops and the residual heat removal (RHR) system. For example, Turkey Point TS LCO 3.4.1.3, Reactor Coolant System - Hot Shutdown, identifies five decay heat removal paths consisting of the three reactor coolant loops (i.e., the loop 1
piping and the associated steam generator and reactor coolant pump) and the two RHR loops. The LCO specifies that at least two of these decay heat removal paths be operable and one be in operation.
The AFW system at Turkey Point consists of three turbine-driven pumps operated in two trains that are shared between the two units. Since the AFW pumps are all steam-driven and located in a single fire area, they could be susceptible to failure from a single cause.
As described in Section 9.11.2, Auxiliary Feedwater Pumps, of the Turkey Point Updated Final Safety Analysis Report (UFSAR), the standby steam generator feedwater pumps (SSGFPs) consist of one motor-driven pump and one diesel-engine-driven pump with an integral fuel tank and electric starting system. The SSGFPs are used to supply feedwater to the steam generators during normal start-up, shutdown, and hot standby conditions. In case of loss of offsite power, the normal safety supply of feedwater to the steam generators is provided by the steam turbine-driven AFW pumps. However, feedwater can also be supplied by the diesel engine-driven SSGFP. In addition, the current standby feedwater system TS bases state the following, in part: "The function of the Standby Feedwater System for OPERABILITY determinations is that it can be used as a backup to the Auxiliary Feedwater (AFW) System in the event the AFW System does NOT function properly."
Section 9.3 of the Turkey Point UFSAR describes that the RHR system inlet from the reactor coolant system consists of a single line with two normally closed isolation valves in series. Therefore, a failure of one of the two isolation valves to open would prevent use of either RHR loop as a decay heat removal path.
SCPB RAI 1 As noted in LAR, the standby feedwater system is specifically credited for the AFW decay heat removal function for a fire in the AFW pump area. The system also could support the decay heat removal function above RHR entry conditions and below the reactor coolant system temperature necessary for adequate steam pressure to operate the turbine-driven AFW pumps. Neither the LAR, nor the supplement, provides a discussion of the safety-significance of these particular functions for the Turkey Point. This information is necessary for the staff to evaluate whether this item satisfies Criterion 4 of 10 CFR 50.36(c)(2)(ii).
The standby feedwater system pumps could be necessary to support decay heat removal and coolant circulation when the reactor is in Mode 4, relying on the steam generators for decay heat removal, and the steam pressure is insufficient for the turbine-driven AFW pumps. Identify periods, as prescribed by procedures, during normal plant operations (i.e., heatup, startup, shutdown, and cooldown), abnormal operating conditions (e.g., valve failure to operate), and emergency operations where the standby feedwater system pumps would be part of the primary means of adding water to the steam generators for decay heat removal in Mode 4.
Describe any Turkey Point-specific operating experience where the standby feedwater pumps were used for decay heat removal when the AFW pumps were not available and/or RHR entry conditions were not satisfied.
SCPB RAI 2 In the LAR supplement dated October 19, 2017, the licensee indicates for internal events and flooding events, a sensitivity analysis was done by increasing the failure probability of the SSGFPs by two orders of magnitude.
The licensee further states that this results in the systems contribution to Turkey Points core damage frequency (CDF) remaining below 1E-6 per year. Clarify whether the safety analysis includes any shutdown modes. Provide a comparison between the standby feedwater system pumps and other safety-related components that support similar decay heat removal functions using standard measures of safety significance.
2
Hearing Identifier: NRR_DMPS Email Number: 167 Mail Envelope Properties (Michael.Wentzel@nrc.gov20180205101700)
Subject:
Draft Request for Additional Information - Turkey Point 3 and 4 LAR 255 (CAC Nos MG0143 and MG0144; EPID L-2017-LLA-0272)
Sent Date: 2/5/2018 10:17:04 AM Received Date: 2/5/2018 10:17:00 AM From: Wentzel, Michael Created By: Michael.Wentzel@nrc.gov Recipients:
"robert.hess@fpl.com" <robert.hess@fpl.com>
Tracking Status: None "Mack, Jarrett" <Jarrett.Mack@fpl.com>
Tracking Status: None "Hanek, Olga" <Olga.Hanek@fpl.com>
Tracking Status: None "Czaya, Paul" <Paul.Czaya@fpl.com>
Tracking Status: None "Mihalakea, Stavroula" <Stavroula.Mihalakea@fpl.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 6802 2/5/2018 10:17:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
