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| | number = ML14163A482 | | | number = ML14163A482 |
| | issue date = 05/29/2014 | | | issue date = 05/29/2014 |
| | title = Columbia Generating Station - Response to Request for Additional Information Regarding License Amendment Request to Change Emergency Core Cooling Systems Surveillance Requirements | | | title = Response to Request for Additional Information Regarding License Amendment Request to Change Emergency Core Cooling Systems Surveillance Requirements |
| | author name = Javorik A L | | | author name = Javorik A L |
| | author affiliation = Energy Northwest | | | author affiliation = Energy Northwest |
Revision as of 21:02, 3 April 2019
Letter Sequence Response to RAI |
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MONTHYEARGO2-13-151, NEDO-33813, Rev. 2, Technical Specification Change Support for Rhr/Lpci and LPCS Flow Rate. Long-Term LOCA Containment Response and ECCS/Non-LOCA Evaluations.2013-09-30030 September 2013 NEDO-33813, Rev. 2, Technical Specification Change Support for Rhr/Lpci and LPCS Flow Rate. Long-Term LOCA Containment Response and ECCS/Non-LOCA Evaluations. Project stage: Other ML13316A0092013-10-31031 October 2013 License Amendment Request for Change to Emergency Core Cooling Systems Surveillance Requirements Project stage: Request ML14038A0262014-02-0707 February 2014 NRR E-mail Capture - Acceptance Review Project stage: Acceptance Review ML14056A1202014-03-0505 March 2014 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML14111A0832014-04-29029 April 2014 Request for Additional Information, License Amendment Request to Modify Emergency Core Cooling Systems Surveillance Requirements for Low Pressure Core Spray and Low Pressure Coolant Injection Pump Flows Project stage: RAI ML14163A4822014-05-29029 May 2014 Response to Request for Additional Information Regarding License Amendment Request to Change Emergency Core Cooling Systems Surveillance Requirements Project stage: Response to RAI ML14192B0312014-08-13013 August 2014 Redacted, Request for Additional Information, Nrr/Dss/Scvb, Request to Modify Emergency Core Cooling Systems Surveillance Requirements for Low Pressure Core Spray and Low Pressure Coolant Injection Pump Flows Project stage: RAI ML14335A1892015-01-0707 January 2015 Redacted, Issuance of Amendment No. 229, Revise Emergency Core Cooling Systems Surveillance Requirements for Low Pressure Core Spray and Low Pressure Coolant Injection Pump Flows Project stage: Approval 2014-03-05
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Category:Letter
MONTHYEARGO2-24-088, Supplement to Response to Request for Additional Information Regarding License Amendment Request to Revise Columbia Emergency Plan2024-09-24024 September 2024 Supplement to Response to Request for Additional Information Regarding License Amendment Request to Revise Columbia Emergency Plan GO2-24-051, Application to Revise Technical Specifications to Adopt TSTF-592, Revise Automatic Depressurization System (ADS) Instrumentation Requirements2024-09-23023 September 2024 Application to Revise Technical Specifications to Adopt TSTF-592, Revise Automatic Depressurization System (ADS) Instrumentation Requirements ML24247A1572024-09-12012 September 2024 Withholding Determination Letter for Presentation Materials for Energy Northwest Pre-application Meeting 8-9-2024 ML24255A1012024-09-12012 September 2024 Request for Withholding Information from Public Disclosure Energy Northwest Regulatory Engagement Plan, Revision 0 GO2-24-082, Response to Request for Additional Information Regarding License Amendment Request to Revise Columbia Emergency Plan2024-09-10010 September 2024 Response to Request for Additional Information Regarding License Amendment Request to Revise Columbia Emergency Plan IR 05000397/20240052024-08-22022 August 2024 Updated Inspection Plan for Columbia Generating Station (Report 05000397/2024005) IR 07200035/20244012024-08-19019 August 2024 Security Baseline Inspection Report 07200035/2024401 IR 05000397/20244022024-08-13013 August 2024 Security Baseline Inspection Report 05000397/2024402 IR 05000397/20240022024-08-0909 August 2024 Integrated Inspection Report 05000397/2024002 GO2-24-060, Reply to a Notice of Violation, EA-21-170 and EA-23-0542024-07-30030 July 2024 Reply to a Notice of Violation, EA-21-170 and EA-23-054 GO2-24-070, Response to Request for Additional Information Regarding Fifth Interval Inservice Testing Program2024-07-29029 July 2024 Response to Request for Additional Information Regarding Fifth Interval Inservice Testing Program GO2-24-063, Notification of Extension to Columbias Fourth 10-Year Interval Inservice Testing Program Plan2024-07-15015 July 2024 Notification of Extension to Columbias Fourth 10-Year Interval Inservice Testing Program Plan IR 05000397/20240122024-07-10010 July 2024 – Safety Conscious Work Environment Issue of Concern Follow-up Inspection 05000397/2024012 ML24180A1482024-06-28028 June 2024 Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000397/2024011) and Request for Information IR 05000397/20244202024-06-27027 June 2024 – Security Baseline Inspection Report 05000397 2024420 Cover Letter GO2-24-057, Notice of Readiness for Supplemental Inspection2024-06-19019 June 2024 Notice of Readiness for Supplemental Inspection ML24099A2232024-06-12012 June 2024 Issuance of Amendment No. 275 to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling GO2-24-056, Relief Request for the Columbia Generating Station Fourth Ten-Year Interval Inservice Testing2024-06-11011 June 2024 Relief Request for the Columbia Generating Station Fourth Ten-Year Interval Inservice Testing ML24128A2242024-05-31031 May 2024 Issuance of Amendment No. 274 to Revise Technical Specifications to Adopt TSTF-584, Eliminate Automatic RWCU System Isolation on SLC Initiation GO2-24-049, 2023 Annual Radiological Environmental Operating Report2024-05-13013 May 2024 2023 Annual Radiological Environmental Operating Report GO2-24-050, Annual Environmental Operating Report2024-04-30030 April 2024 Annual Environmental Operating Report IR 05000397/20240012024-04-24024 April 2024 Integrated Inspection Report 05000397/2024001 GO2-24-042, 2023 Annual Radioactive Effluent Release Report2024-04-22022 April 2024 2023 Annual Radioactive Effluent Release Report ML24089A2282024-04-15015 April 2024 – Acceptance of Requested Licensing Action License Amendment Request to Revise Columbia Generating Station Emergency Plan ML24074A4532024-04-11011 April 2024 Request for Withholding Information from Public Disclosure GO2-24-044, Voluntary Response to Regulatory Issue Summary 2024-012024-04-11011 April 2024 Voluntary Response to Regulatory Issue Summary 2024-01 IR 05000397/20244012024-04-0202 April 2024 – Security Baseline Inspection Report 05000397/2024401 (Cover Letter Only) IR 05000397/20244032024-03-28028 March 2024 Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000397/2024403 GO2-24-034, Supplement to License Amendment Request to Revise Columbia Generating Station Emergency Plan2024-03-20020 March 2024 Supplement to License Amendment Request to Revise Columbia Generating Station Emergency Plan ML24058A0692024-03-14014 March 2024 Supplemental Information Needed for Acceptance of Requested Licensing Action Amendment Request for Emergency Plan ML24044A0492024-03-12012 March 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0064 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) GO2-24-041, Level of Financial Protection - Annual Reporting Requirement2024-03-12012 March 2024 Level of Financial Protection - Annual Reporting Requirement GO2-24-039, Report of Changes or Errors in Emergency Core Cooling System Loss of Coolant Accident Analysis Models Pursuant to 10 CFR 50.462024-03-11011 March 2024 Report of Changes or Errors in Emergency Core Cooling System Loss of Coolant Accident Analysis Models Pursuant to 10 CFR 50.46 GO2-24-036, Presentation Information for Pre-Application Meeting Regarding Columbia’S Replacement Steam Dryer Evaluation Approach for Extended Power Uprate2024-03-11011 March 2024 Presentation Information for Pre-Application Meeting Regarding Columbia’S Replacement Steam Dryer Evaluation Approach for Extended Power Uprate ML24047A0422024-03-0707 March 2024 Issuance of Amendment No. 273 Renewed Facility Operating License and Technical Specification Clean Up IR 05000397/20230062024-02-28028 February 2024 Annual Assessment Letter for Columbia Generating Station (Report 05000397/2023006) IR 05000397/20253012024-02-14014 February 2024 Notification of NRC Initial Operator Licensing Examination 05000397/2025301 GO2-24-004, License Amendment Request to Revise Emergency Plan2024-01-30030 January 2024 License Amendment Request to Revise Emergency Plan GO2-24-003, Relief Requests for the Columbia Generating Station Fifth Ten-Year Interval Inservice Testing2024-01-29029 January 2024 Relief Requests for the Columbia Generating Station Fifth Ten-Year Interval Inservice Testing IR 05000397/20230042024-01-29029 January 2024 Integrated Inspection and Independent Spent Fuel Storage Installation Report 05000397/2023004 and 07200035/2023001 GO2-24-014, Independent Spent Fuel Storage Installation, Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2024-01-15015 January 2024 Independent Spent Fuel Storage Installation, Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML24011A1522024-01-10010 January 2024 March 2024 Emergency Preparedness Exercise Inspection-Request for Information GO2-24-005, Docket No. 50-397 Supplement to Reply to a Notice of Violation; EA-21-1702024-01-0808 January 2024 Docket No. 50-397 Supplement to Reply to a Notice of Violation; EA-21-170 GO2-23-136, Guarantee of Payment of Deferred Premium2023-12-20020 December 2023 Guarantee of Payment of Deferred Premium GO2-23-135, Notice of Readiness for Supplemental Inspection2023-12-14014 December 2023 Notice of Readiness for Supplemental Inspection GO2-23-130, Reply to a Notice of Violation; EA-23-0542023-12-14014 December 2023 Reply to a Notice of Violation; EA-23-054 GO2-23-105, Licensing Basis Document Update and Biennial Commitment Change Report2023-12-12012 December 2023 Licensing Basis Document Update and Biennial Commitment Change Report ML23288A0002023-12-0707 December 2023 Issuance of Amendment No. 272 to Adopt TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position GO2-23-107, Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation2023-12-0505 December 2023 Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation GO2-23-126, Docket No. 50-397 Voluntary Response to Regulatory Issue Summary 2023-012023-11-28028 November 2023 Docket No. 50-397 Voluntary Response to Regulatory Issue Summary 2023-01 2024-09-24
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ENERGY NORTHWEST Alex L. Javorik Columbia Generating Station P.O. Box 968, PE04 Richland, WA 99352-0968 Ph. 509.377.8555 I F. 509.377.4150 aljavork@
energy-northwest.com MAY 2 9 2014 G02-14-088 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
Subject:
Reference:
COLUMBIA GENERATING STATION, DOCKET NO. 50-397 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO CHANGE EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS
- 1. Letter, G02-13-151, dated October 31, 2013, AL Javorik (Energy Northwest) to NRC, "License Amendment Request for Change to Emergency Core Cooling Systems Surveillance Requirements" 2. Letter, dated April 29, 2014, CF Lyon (NRC) to ME Reddemann (Energy Northwest), "Columbia Generating Station -Request for Additional Information Related to License Amendment Request for Change to Emergency Core Cooling Systems Surveillance p Requirements (TAC No. MF3055)"
Dear Sir or Madam:
By Reference 1, Energy Northwest requested approval of a license amendment request to revise Technical Specification (TS) Surveillance Requirements 3.5.1.4 and 3.5.2.5.Via Reference 2, the Nuclear Regulatory Commission (NRC) requested additional information.
Attachment 1 provides the response to the requested information.
This letter and its attachments contain no regulatory commitments.
If there are any questions or if additional information is needed, please contact Ms. L. L. Williams, Licensing Supervisor, at 509-377-8148.
I declare under penalty of perjury that te and correct.Executed.ý- V,- I t A. L. Javorik Vice President, Engineering P~4iZL RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO CHANGE EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS Page 2 of 2
Attachment:
As stated cc: NRC RIV Regional Administrator, NRC NRR Project Manager NRC Senior .Resident Inspector/988C JO Luce -ESFEC (email)RR Cowley -WDOH (email)MA Jones -BPA/1.399 (email)
-4 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO CHANGE EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS Attachment 1 Page 1 of 2 NRC ReoUost: 1. NEDO-33813, Revision 2, "Technical Specification Change Support for RHR/LPCI and LPCS Flow Rate Long-Term LOCA [Loss-of-Coolant Accident]Containment Response and ECCS [Emergency Core Cooling System]/Non-LOCA Evaluations," September 2013 (ADAMS Accession No. ML 13316A010), Section 4.1.7, Refueling Operations and Spent Fuel Pool Cooling Assessment, states that refueling operations and spent fuel pool cooling may be affected if there is a reduction in the RHR heat exchanger heat removal capacity as a result of RHR/LPCI and LPCS flow rate reduction.
NEDO-33813, Revision 2 also indicates that these evaluations were not included with the report, and that the assessments would be made by Energy Northwest outside of this report.Please provide the assessments for refueling operations and spent fuel pool cooling to determine acceptability.
Energy Northwest Resmone: Three situations describe Columbia Generating Station's (Columbia's) refueling and spent fuel pool cooling operations:
- 1) the use of shutdown cooling for heat removal from the reactor core during refueling, 2) the use of the Fuel Pool Cooling (FPC) system during normal reactor operations and refueling outages to cool the spent fuel pool, and 3) the use of the Residual Heat Removal (RHR) system to provide supplemental cooling during a full core offload. A discussion of the impact of the flow rate reduction for RHR on each situation is provided below. There is no impact from the flow rate reduction for the Low Pressure Core Spray (LPCS) system since it does not support refueling operations and spent fuel pool cooling.1. NEDO-33813 Sections 4.1.5 and 4.1.6 provide an evaluation of the impact of the change on the shutdown cooling and alternate shutdown cooling modes of operation of RHR. These evaluations are directly applicable during refueling operations while using shutdown cooling for decay heat removal of the reactor core given Columbia's configuration.
2, During normal reactor operation (non-outage) and refueling operations not involving a full core off load, the FPC system is designed to remove decay heat released from the stored spent fuel elements and maintain a specified fuel pool water temperature and water level. The RHR system is not credited for supplemental cooling of the spent fuel pool other than for a full core offload to the pool.3. During refueling, in the event of a full core offload, additional heat removal capacity is available from the B loop of the RHR system. To provide RESPONSE TO. REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO CHANGE EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS Attachment 1 Page 2 of 2 supplemental cooling to the spent fuel pool, the RHR flow is throttled to 5400-5600 gpm during system realignment and then is further limited to less than or equal to 3000 gpm during the FPC Assist mode. Since these flow rates are less than the new lower Technical Specification flow rate of 7200 gpm, the relaxed RHR flow rate has no adverse effect on the supplemental cooling to the spent fuel pool.