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EPID:L-2020-LLA-0131, Response to Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability (Approved, Closed) |
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Category:Letter type:LR
MONTHYEARLR-N23-0065, Submittal of 2023 Annual 10 CFR 50.46 Report2023-10-0202 October 2023 Submittal of 2023 Annual 10 CFR 50.46 Report LR-N23-0045, and Peach Bottom Atomic Power Station, Units 2 and 3 - Notice of Proposed Amendment to Decommissioning Trust Agreement2023-09-0808 September 2023 and Peach Bottom Atomic Power Station, Units 2 and 3 - Notice of Proposed Amendment to Decommissioning Trust Agreement LR-N23-0052, Retest Schedule for Drywell to Suppression Chamber Vacuum Breakers Per Technical Specification 4.6.2.12023-07-31031 July 2023 Retest Schedule for Drywell to Suppression Chamber Vacuum Breakers Per Technical Specification 4.6.2.1 LR-N23-0042, Spent Fuel Cask Registration2023-07-12012 July 2023 Spent Fuel Cask Registration LR-N23-0046, Emergency Plan Document Revisions Implemented June 28, 20232023-07-10010 July 2023 Emergency Plan Document Revisions Implemented June 28, 2023 LR-N23-0034, 2022 Annual Radiological Environmental Operating Report (AREOR) - Salem Nuclear Generating Station, Unit Nos. 1 and 2 and Hope Creek Generating Station2023-04-27027 April 2023 2022 Annual Radiological Environmental Operating Report (AREOR) - Salem Nuclear Generating Station, Unit Nos. 1 and 2 and Hope Creek Generating Station LR-N23-0035, 2022 Annual Radioactive Effluent Release Report (ARERR)2023-04-27027 April 2023 2022 Annual Radioactive Effluent Release Report (ARERR) LR-N23-0010, License Amendment Request Revision of Technical Specification (TS) to Delete TS Section 5.5 - Meteorological Tower Location2023-04-21021 April 2023 License Amendment Request Revision of Technical Specification (TS) to Delete TS Section 5.5 - Meteorological Tower Location LR-N23-0009, License Amendment Request (LAR) to Revise the Hope Creek Trip and Standby Auto-start Logic Associated with Safety Related Heating, Ventilation and Air Conditioning (HVAC) Trains2023-04-18018 April 2023 License Amendment Request (LAR) to Revise the Hope Creek Trip and Standby Auto-start Logic Associated with Safety Related Heating, Ventilation and Air Conditioning (HVAC) Trains LR-N23-0024, Submittal of Hope Creek Generating Station Technical Specification Bases Changes2023-03-29029 March 2023 Submittal of Hope Creek Generating Station Technical Specification Bases Changes LR-N23-0006, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-24024 March 2023 Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations LR-N23-0019, and Salem Generating Station, Units 1 and 2 - Guarantees of Payment of Deferred Premiums2023-03-21021 March 2023 and Salem Generating Station, Units 1 and 2 - Guarantees of Payment of Deferred Premiums LR-N23-0016, and Salem Generating Station, Units 1 and 2 - Report of Changes, Tests, and Experiments2023-02-28028 February 2023 and Salem Generating Station, Units 1 and 2 - Report of Changes, Tests, and Experiments LR-N23-0018, Technical Specification 6.9.1.5.b - 2022 Annual Report of SRV Challenges2023-02-27027 February 2023 Technical Specification 6.9.1.5.b - 2022 Annual Report of SRV Challenges LR-N23-0012, Annual Property Insurance Status Report2023-02-24024 February 2023 Annual Property Insurance Status Report LR-N23-0014, Stations Submittal of 2022 Annual Report of Fitness for Duty Performance Data Per 10 CFR 26.203(e) and 10 CFR 26.7172023-02-23023 February 2023 Stations Submittal of 2022 Annual Report of Fitness for Duty Performance Data Per 10 CFR 26.203(e) and 10 CFR 26.717 LR-N23-0011, In-Service Inspection Activities - 90 Day Report: Twenty-Fourth Refueling Outage2023-01-19019 January 2023 In-Service Inspection Activities - 90 Day Report: Twenty-Fourth Refueling Outage LR-N22-0096, and Salem Generating Station, Units 1 and 2 - Request for Threshold Determination2023-01-0505 January 2023 and Salem Generating Station, Units 1 and 2 - Request for Threshold Determination LR-N22-0094, Emergency Plan Document Revisions Implemented November 21, 20222022-12-14014 December 2022 Emergency Plan Document Revisions Implemented November 21, 2022 LR-N22-0091, Independent Spent Fuel Storage Installation, Report of 10 CFR 72.48 Changes, Tests, and Experiments2022-12-0202 December 2022 Independent Spent Fuel Storage Installation, Report of 10 CFR 72.48 Changes, Tests, and Experiments LR-N22-0075, 2022 Annual 10 CFR 50.46 Report2022-09-30030 September 2022 2022 Annual 10 CFR 50.46 Report LR-N22-0074, Emergency Plan Evacuation Time Estimate2022-09-15015 September 2022 Emergency Plan Evacuation Time Estimate LR-N22-0051, License Amendment Request to Relocate Technical Specification Facility/Unit Staff Qualification Requirements to Quality Assurance Topical Report2022-06-22022 June 2022 License Amendment Request to Relocate Technical Specification Facility/Unit Staff Qualification Requirements to Quality Assurance Topical Report LR-N22-0044, Emergency Plan Document Revisions Implemented November, 20212022-05-19019 May 2022 Emergency Plan Document Revisions Implemented November, 2021 LR-N22-0041, 2021 Annual Radioactive Effluent Release Report (Rerr)2022-04-28028 April 2022 2021 Annual Radioactive Effluent Release Report (Rerr) LR-N22-0040, 2021 Annual Radiological Environmental Operating Report2022-04-28028 April 2022 2021 Annual Radiological Environmental Operating Report LR-N22-0039, Emergency Plan Document Revisions Implemented March 24, 20222022-04-21021 April 2022 Emergency Plan Document Revisions Implemented March 24, 2022 LR-N22-0023, Guarantees of Payment of Deferred Premiums2022-03-21021 March 2022 Guarantees of Payment of Deferred Premiums LR-N22-0017, Submittal of 2021 Annual Report of Fitness for Duty (FFD) Performance Data2022-02-25025 February 2022 Submittal of 2021 Annual Report of Fitness for Duty (FFD) Performance Data LR-N22-0016, Radiological Survey of Site Property to Be Used for Offshore Wind Port Facility2022-02-24024 February 2022 Radiological Survey of Site Property to Be 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Requirements of 10 CFR Part 26, Fitness for Duty Programs LR-N21-0087, Corrected Hope Creek 10 CFR 50.46 Reports2021-12-0202 December 2021 Corrected Hope Creek 10 CFR 50.46 Reports LR-N21-0078, Hope and Creek Generating Station, Supplement to License Amendment Request to Revise Technical Specifications (TS) to Delete Definitions Found in 10 CFR Part 20 and Delete Figures of the Site and Surrounding Areas from TS2021-11-18018 November 2021 Hope and Creek Generating Station, Supplement to License Amendment Request to Revise Technical Specifications (TS) to Delete Definitions Found in 10 CFR Part 20 and Delete Figures of the Site and Surrounding Areas from TS LR-N21-0081, Submittal of Updated Final Safety Analysis Report, Revision 25, Summary of Revised Regulatory Commitments2021-11-15015 November 2021 Submittal of Updated Final Safety Analysis Report, Revision 25, Summary of Revised Regulatory Commitments LR-N21-0056, License Amendment Request to Amend the Technical Specifications to Revise Surveillance Requirements for Electric Power Monitor Channels for the Reactor Protection System (RPS) and Power Range Neutron Monitoring System2021-11-0303 November 2021 License Amendment Request to Amend the Technical Specifications to Revise Surveillance Requirements for Electric Power Monitor Channels for the Reactor Protection System (RPS) and Power Range Neutron Monitoring System LR-N21-0079, Submittal of Hope Creek Generating Station Technical Specification Bases Changes2021-11-0303 November 2021 Submittal of Hope Creek Generating Station Technical Specification Bases Changes LR-N21-0071, 2021 Annual 10 CFR 50.46 Report2021-09-30030 September 2021 2021 Annual 10 CFR 50.46 Report LR-N21-0065, License Amendment Request - Revision of Salem and Hope Creek Generating Station Technical Specification (TS) to Delete Definitions Found in 10 CFR Part 20 and Delete Figures of the Site and Surrounding Areas from TS2021-09-29029 September 2021 License Amendment Request - Revision of Salem and Hope Creek Generating Station Technical Specification (TS) to Delete Definitions Found in 10 CFR Part 20 and Delete Figures of the Site and Surrounding Areas from TS LR-N21-0069, Emergency Plan Document Revisions Implemented August 10, 20212021-09-0909 September 2021 Emergency Plan Document Revisions Implemented August 10, 2021 LR-N21-0059, In-Service Inspection Activities - 90 Day Twenty-Third Refueling Outage2021-08-13013 August 2021 In-Service Inspection Activities - 90 Day Twenty-Third Refueling Outage LR-N21-0054, Correction to Prior Spent Fuel Cask Registration Letter2021-07-15015 July 2021 Correction to Prior Spent Fuel Cask Registration Letter LR-N21-0046, Submittal of Salem Generating Station Updated Final Safety Analysis Report, Revision 32, Summary of Revised Regulatory Commitments for Salem, 10 CFR 71.106 Review Results and 10 CFR 54.37(b) Review Results for Salem2021-06-17017 June 2021 Submittal of Salem Generating Station Updated Final Safety Analysis Report, Revision 32, Summary of Revised Regulatory Commitments for Salem, 10 CFR 71.106 Review Results and 10 CFR 54.37(b) Review Results for Salem LR-N21-0040, Response to Request for Additional Information SNSB-RAI 1 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication2021-05-27027 May 2021 Response to Request for Additional Information SNSB-RAI 1 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication LR-N21-0042, Core Operating Limits Report, Reload 23, Cycle 24, Revision 212021-05-24024 May 2021 Core Operating Limits Report, Reload 23, Cycle 24, Revision 21 LR-N21-0025, License Amendment Request to Revise Technical Specification Limits for Ultimate Heat Sink2021-05-0707 May 2021 License Amendment Request to Revise Technical Specification Limits for Ultimate Heat Sink LR-N21-0039, Deviation from EPRI Document 33002012244 Inspection Requirements2021-04-30030 April 2021 Deviation from EPRI Document 33002012244 Inspection Requirements LR-N21-0018, Response to Requests for Additional Information SNSB-RAI 2 and SNSB-RAI 3 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication2021-04-29029 April 2021 Response to Requests for Additional Information SNSB-RAI 2 and SNSB-RAI 3 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication 2023-09-08
[Table view] Category:Response to Request for Additional Information (RAI)
MONTHYEARLR-N22-0011, Response to Request for Additional Information for License Amendment Request to Revise Technical Specification Limits for Ultimate Heat Sink2022-02-0101 February 2022 Response to Request for Additional Information for License Amendment Request to Revise Technical Specification Limits for Ultimate Heat Sink LR-N21-0040, Response to Request for Additional Information SNSB-RAI 1 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication2021-05-27027 May 2021 Response to Request for Additional Information SNSB-RAI 1 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication LR-N21-0018, Response to Requests for Additional Information SNSB-RAI 2 and SNSB-RAI 3 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication2021-04-29029 April 2021 Response to Requests for Additional Information SNSB-RAI 2 and SNSB-RAI 3 License Amendment Request to Revise Low Pressure Safety Limit to Address General Electric Part 21 Safety Communication LR-N20-0069, Response to Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability2020-11-0404 November 2020 Response to Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability LR-N20-0043, PSEG Nuclear LLC - Response to Request for Additional Information, Adopt 10 CFR 50.69 LAR2020-06-25025 June 2020 PSEG Nuclear LLC - Response to Request for Additional Information, Adopt 10 CFR 50.69 LAR ML19308A5952019-11-0404 November 2019 Response to Request for Additional Information, License Amendment Request for Approval of Changes to Emergency Plan Staffing Requirements ML19280A0002019-10-0303 October 2019 NRR E-mail Capture - Hope Creek, Salem 1 and 2 - Final RAI Emergency Plan Staffing Requirements (L-2019-LLA-0145) LR-N18-0109, Response to Request for Additional Information, License Amendment Request: Inverter Allowed Outage Time (AOT) Extension2018-10-17017 October 2018 Response to Request for Additional Information, License Amendment Request: Inverter Allowed Outage Time (AOT) Extension LR-N18-0107, Response to Request for Additional Information, License Amendment Request Inverter Allowed Outage Time (AOT) Extension (Electrical Branch)2018-10-17017 October 2018 Response to Request for Additional Information, License Amendment Request Inverter Allowed Outage Time (AOT) Extension (Electrical Branch) LR-N18-0073, Supplement to License Amendment Request for Additional Information, Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.2018-07-19019 July 2018 Supplement to License Amendment Request for Additional Information, Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control. LR-N18-0061, Response to Request for Additional Information, Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.2018-06-27027 June 2018 Response to Request for Additional Information, Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control. LR-N17-0189, Transmittal of Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-12-22022 December 2017 Transmittal of Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0187, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-12-19019 December 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0175, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-12-19019 December 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0181, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-12-19019 December 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0186, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-12-19019 December 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0176, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Uprate2017-12-14014 December 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Uprate LR-N17-0170, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-11-27027 November 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0161, Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate2017-11-0101 November 2017 Response to Request for Additional Information Regarding License Amendment Request for Measurement Uncertainty Recapture Power Uprate LR-N17-0126, Response to Request for Additional Information (Rai), P-T Limit Report License Amendment Application2017-09-0505 September 2017 Response to Request for Additional Information (Rai), P-T Limit Report License Amendment Application LR-N17-0125, Response to Request for Additional Information Regarding Request to Adopt Emergency Action Level Scheme Pursuant to NEI 99-01, Revision 6, Development of Emergency Action Levels for Non-Passive Reactors2017-08-11011 August 2017 Response to Request for Additional Information Regarding Request to Adopt Emergency Action Level Scheme Pursuant to NEI 99-01, Revision 6, Development of Emergency Action Levels for Non-Passive Reactors LR-N17-0109, Response to Final Request for Additional Information (Rai), Permanently Extend Type a and Type C Leak Rate Test Frequencies2017-07-13013 July 2017 Response to Final Request for Additional Information (Rai), Permanently Extend Type a and Type C Leak Rate Test Frequencies LR-N17-0063, Response to Request for Additional Information, Permanently Extend Type a and Type C Leak Rate Test Frequencies2017-03-27027 March 2017 Response to Request for Additional Information, Permanently Extend Type a and Type C Leak Rate Test Frequencies LR-N16-0231, Response to Request for Additional Information, License Amendment Request to Permit Operability of Low Pressure Coolant Injection While Aligned to Shutdown Cooling2016-12-27027 December 2016 Response to Request for Additional Information, License Amendment Request to Permit Operability of Low Pressure Coolant Injection While Aligned to Shutdown Cooling LR-N16-0226, Response to Request for Additional Information, Regarding Removing Certain Training Requirements2016-12-19019 December 2016 Response to Request for Additional Information, Regarding Removing Certain Training Requirements LR-N16-0232, Response to Prelim White Finding in Integrated Inspection Report 05000354/20160032016-12-14014 December 2016 Response to Prelim White Finding in Integrated Inspection Report 05000354/2016003 LR-N16-0192, Response to Request for Additional Information Stuck Open Safety/Relief Valves2016-12-13013 December 2016 Response to Request for Additional Information Stuck Open Safety/Relief Valves ML16305A2382016-10-31031 October 2016 Response to NRC Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spend Fuel Pools LR-N16-0165, Transmittal of Response to Request for Additional Information Regarding Digital Power Range Neutron Monitoring (Prnm) System Upgrade2016-09-23023 September 2016 Transmittal of Response to Request for Additional Information Regarding Digital Power Range Neutron Monitoring (Prnm) System Upgrade LR-N16-0174, Response to Second Request for Additional Information Regarding Relief Request VR-02 Associated with the Fourth 10-Year Inservice Test Interval2016-09-23023 September 2016 Response to Second Request for Additional Information Regarding Relief Request VR-02 Associated with the Fourth 10-Year Inservice Test Interval LR-N16-0148, Supplemental Information Regarding Request for Relaxation from the Hardened Containment Vent Release Point Height Requirement of NRC Order EA-13-1092016-09-0707 September 2016 Supplemental Information Regarding Request for Relaxation from the Hardened Containment Vent Release Point Height Requirement of NRC Order EA-13-109 LR-N16-0137, Seventh Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External2016-08-24024 August 2016 Seventh Six-Month Status Report in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External LR-N16-0119, Response to Request for Additional Information Regarding Review of Post-Extended Power Uprate Steam Dryer Stress Calculation Acoustic Circuit Model Software Error2016-06-29029 June 2016 Response to Request for Additional Information Regarding Review of Post-Extended Power Uprate Steam Dryer Stress Calculation Acoustic Circuit Model Software Error LR-N16-0109, and Hope Creek Generating Stations - Cover Letter for Response to Request for Additional Information Regarding Review of Security Plan, Revision 172016-06-15015 June 2016 and Hope Creek Generating Stations - Cover Letter for Response to Request for Additional Information Regarding Review of Security Plan, Revision 17 LR-N16-0105, Request for Additional Information Regarding Relief Requests Associated with the Fourth 10-Year Lnservice Test Interval2016-06-10010 June 2016 Request for Additional Information Regarding Relief Requests Associated with the Fourth 10-Year Lnservice Test Interval LR-N15-0256, High Frequency Supplement to Seismic Hazard Screening Report, Response to NRC Request for Information, Per 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2015-12-23023 December 2015 High Frequency Supplement to Seismic Hazard Screening Report, Response to NRC Request for Information, Per 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident LR-N15-0092, Compliance with NRC Order to Modify Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order EA-12-051) and Responses to Requests for Additional Information2015-07-28028 July 2015 Compliance with NRC Order to Modify Licenses with Regard to Reliable Spent Fuel Pool Instrumentation (Order EA-12-051) and Responses to Requests for Additional Information 2022-02-01
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10 CFR 50.90 LR-N20-0069 LAR H20-01 November 4, 2020 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Hope Creek Generating Station Renewed Facility Operating License No. NPF-57 NRC Docket No. 50-354
Subject:
Response to Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability
References:
- 1. PSEG letter to NRC, License Amendment Request: Revise Emergency Core Cooling System Technical Specifications With Respect to High Pressure Coolant Injection System Inoperability, dated June 15, 2020 (ADAMS Accession No. ML20167A190)
- 2. NRC letter to PSEG, Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability (L-2020-LLA-0131), dated October 21, 2020 (ADAMS Accession No. ML20295A492)
In the Reference 1 letter, PSEG Nuclear LLC (PSEG) submitted a license amendment request (LAR) for Hope Creek Generating Station (HCGS). The proposed amendment would revise the HCGS Technical Specifications to clarify the entry conditions for Limiting Condition for Operation (LCO) 3.5.1 Action c relative to High Pressure Coolant Injection (HPCI) system inoperability. The LAR also proposed to add a new TS Action, 3.5.1.c.2.b to address the condition where the HPCI system is inoperable coincident with inoperability of a Low Pressure Coolant Injection (LPCI) subsystem and a Core Spray System (CSS) subsystem.
In the Reference 2 letter, the U.S. Nuclear Regulatory Commission staff provided PSEG a Request for Additional Information (RAI) to support the NRC staffs detailed technical review of Reference 1. The requested information is provided in Attachment 1.
PSEG has determined that the information provided in this submittal does not alter the conclusions reached in the 10 CFR 50.92 no significant hazards determination previously submitted. In addition, the information provided in this submittal does not affect the bases for concluding that neither an environmental impact statement nor an environmental assessment needs to be prepared in connection with the proposed amendment.
LR-N20-0069 10 CFR 50.90 Page 2 If you have any questions or require additional information, please contact Mr. Michael Wiwel at 856-339-7907.
I declare under penalty of perjury that the foregoing is true and correct.
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Respectfully, Edward T. Casulli Vice President - Hope Creek Generating Station PSEG Nuclear LLC Response to Request for Additional Information EPID L-2020-LLA-0131 cc: Administrator, Region I, NRC NRC Project Manager NRC Senior Resident Inspector, Hope Creek Mr. P. Mulligan, Chief, NJBNE PSEG Corporate Commitment Tracking Coordinator Station Commitment Tracking Coordinator
LR-N20-0069 LAR H20-01 Response to Final Request for Additional Information Regarding Revise Technical Specifications Requirements for High Pressure Coolant Injection System Inoperability L-2020-LLA-0131
LR-N20-0069 LAR H20-01 Regulatory Analysis Basis Title 10 of the Code of Federal Regulations (10 CFR) Section 50.36(b) requires each license authorizing operation of a production or utilization facility of a type described in § 50.21 or § 50.22 will include technical specifications. The technical specification will be derived from the analyses and evaluation included in the safety analysis report, and amendments thereto, submitted pursuant to § 50.34.
10 CFR 50.46 contains requirements for the design and cooling performance of the Emergency Core Cooling System (ECCS).
10 CFR 50, Appendix A, General Design Criteria (GDC) CRITERION 35 -
EMERGENCY CORE COOLING states:
"A system to provide abundant emergency core cooling shall be provided. The system safety function shall be to transfer heat from the reactor core following any loss of reactor coolant at a rate such that (1) fuel and clad damage that could interfere with continued effective core cooling is prevented and (2) clad metal-water reaction is limited to negligible amounts.
Suitable redundancy in components and features, and suitable interconnections, leak detection, isolation, and containment capabilities shall be provided to assure that for onsite electric power system operation (assuming offsite power is not available) and for offsite electric power system operation (assuming onsite power is not available) the system safety function can be accomplished, assuming a single failure."
Request for Additional Information Question #1 Section 3.1, page 5 of the LAR, contains the following statement: Therefore, instead of two LPCI subsystems, Hope Creek has four independent subsystems of low pressure injection capability in addition to the two low pressure CSS subsystems, providing an increased level of redundancy to that assumed in NUREG-1433 relative to the LPCI function.
Please provide information related to the capacity of each LPCI subsystem. Provide an evaluation of whether 3 LPCI subsystems can supply a combined flow rate needed to mitigate a LOCA.
Response to RAI Question #1:
The Residual Heat Removal (RHR) pumps used at Hope Creek Generating Station are constant speed, motor driven pumps with a Low Pressure Coolant Injection (LPCI) flow rate that is dynamically dependent on the pressure of the reactor pressure vessel (RPV) following depressurization either through actuation of the Automatic Depressurization System (ADS) and/or through the break itself.
LR-N20-0069 LAR H20-01 The in-service testing performed to satisfy Technical Specification Surveillance Requirement 4.5.1.b.2 assures each LPCI pump can develop a flow of at least 10,000 gpm against a test line pressure corresponding to a RPV to primary containment differential pressure of >20 psid. This required LPCI flow capacity per RHR pump supports the Emergency Core Cooling System-Loss of Coolant Accident (ECCS-LOCA)
Analyses of Record (AOR) for Hope Creek and is sufficient to mitigate a LOCA as discussed in the response to the second question in this Request for Additional Information.
Request for Additional Information Question #2 The proposed TS Action 3.5.1.c.2.b would allow continued operation up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for the condition where the HPCI system is inoperable, coincident with an inoperable core spray system (CSS) subsystem and an inoperable low pressure coolant injection (LPCI) subsystem. According to the TS 3.5.1 requirements, an operable ECCS requires that HPCI, two CSS subsystems, four LPCI subsystems and ADS be operable. Under the proposed Action 3.5.1.c.2.b condition, the following ECCS subsystems are still available for use in the event of a LOCA: 1 CSS subsystem, 3 LPCI subsystems, and ADS. The licensee states in its LAR that for both large-break and small-break LOCA events, the above available ECCS subsystems are sufficient to provide adequate core cooling. The licensee does not provide a discussion of an applicable LOCA analysis to support its statement above.
The ECCS is designed to protect against the effects of a postulated LOCA in compliance with the requirements of 10 CFR 50.46, "Acceptable Criteria for Emergency Core Cooling Systems for Light Water Nuclear Power Reactors."
Please provide a discussion of the analysis to support the statement that in the event of a LOCA, 1 CSS subsystem, 3 LPCI subsystems, and ADS are sufficient to provide adequate cooling and address how the analysis meets the 10 CFR 50.46 requirements insofar as they relate to the ECCS performance acceptance criteria.
Response to RAI Question #2:
The current ECCS-LOCA Analyses of Record (AOR) and the tables in Hope Creek UFSAR Section 6.3 identify the limiting design basis LOCA as well as concurrent worst case single failures. The ECCS-LOCA AOR and Hope Creek UFSAR Section 6.3.3.3 identify that for both large and small break LOCAs, failure of the channel A dc source is the most severe single active failure relative to its challenge to LOCA mitigation. Per the ECCS-LOCA AOR and UFSAR Table 6.3-6, the assumed failure of the Channel A dc source and an additional assumed failure of an ADS valve, leaves the following remaining ECCS subsystems which provide sufficient mitigation of the limiting design basis LOCA event to meet 10 CFR 50.46 criteria:
1 Core Spray Loop + 3 LPCI + 4 ADS Valves LR-N20-0069 LAR H20-01 The remaining contingent of ECCS injection sources following failure of the Channel A dc source reflects the state of available ECCS injection sources during the new eight hour Action Statement 3.5.1.c.2.b proposed in Reference 1.