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MONTHYEARML13284A0752013-10-0404 October 2013 Energy Northwest'S Request for NRC Assistance to Obtain Information from the Us Army Corps of Engineers (Usace) Related to Dam Failure Analysis Project stage: Request ML14080A1392014-03-10010 March 2014 Extension Request Regarding the Flooding Hazard Reevaluation Report Required by NRC Request for Information Pursuant to 10 CFR 50.54(F) Regarding Recommendation 2.1, Flooding, of the Near-Term Task Force Review of Insights. Project stage: Request ML14098A1412014-05-21021 May 2014 Relaxation of Response Due Date Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the Near-Term Task Force Review of the Insights from the Fukushima Dai-Ichi Accident Project stage: Approval ML14149A1012014-06-0202 June 2014 Notice of Forthcoming Closed Meeting to Discuss Dam Failure Analysis for Columbia Generating Station Project stage: Request ML14168A0452014-07-0808 July 2014 Summary of 6/10/14 Closed Meeting Between U.S. Army Corps of Engineers, U.S. Dept of Interior Bureau of Reclamation, and Energy Northwest to Discuss Flooding Analysis for Columbia Generating Station Project stage: Meeting ML16337A1092016-12-0707 December 2016 Interim Staff Response to Reevaluated Flood Hazards Submitted in Response to 10 CFR 50.54(f) Information Request; Flood-Causing Mechanism Reevaluation Project stage: Other 2014-05-21
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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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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Mark E. Reddemann Chief Executive Officer Energy Northwest P.O. Box 968 (Mail Drop 1 023) Richland, WA 99352-0968 May 21, 2014 SUBJECT: COLUMBIA GENERATING STATION-RELAXATION OF RESPONSE DUE DATE REGARDING FLOODING HAZARD REEVALUATIONS FOR RECOMMENDATION 2.1 OF THE NEAR-TERM TASK FORCE REVIEW OF THE INSIGHTS FROM THE FUKUSHIMA DAI-ICHI ACCIDENT (TAC NO. MF3039) Dear Mr. Reddemann: By letter dated March 12, 2012,1 the U.S. Nuclear Regulatory Commission (NRC) issued a request for information pursuant to Title 10 of the Code of Federal Regulations, Section 50.54(f) (henceforth referred to as the 50.54(f) letter). The NRC issued the request as a part of implementing lessons-learned from the accident at the Fukushima Dai-ichi nuclear power plant. Enclosure 2 to the 50.54(f) letter requested licensees to perform a reevaluation of all external flooding hazards using present-day guidance and methodologies. By letter dated May 11, 2012,2 the NRC issued a prioritization of due dates for responses from all sites. The flooding hazard reevaluation (FHR) was due on March 12, 2014, for Columbia Generating Station (CGS). By letter dated October 4, 2013,3 Energy Northwest (the licensee) requested NRC assistance in obtaining the U.S. Army Corps of Engineers (USACE) analysis of dams that could impact the flood levels at the CGS site. By letter dated March 10, 2014,4 Energy Northwest requested a delay in submittal of the FHR for CGS to within 60 days of receiving the USACE final analysis. The reason for this request is that the USACE analysis is necessary to complete the FHR and 60 days is necessary to incorporate the results. The NRC reviewed the justification provided by the licensee and considered the following factors when reviewing the new schedule:
- Columbia is currently categorized as a "dry site" in accordance with NRC Regulatory Guide 1.102 "Flood Protection for Nuclear Power Plants." The recorded history described in the licensee's Final Safety Analysis Report indicates that no historical floods have exceeded plant grade. The current limiting flooding event, probable maximum precipitation, does not reach plant grade. 1 The 50.54(f) letter is available in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML 12053A340. 2 The prioritization letter is available in ADAMS under Accession No. ML 12097A509. 3 The request for assistance in obtaining USAGE analysis is available in ADAMS under Accession No. ML 13284A075. 4 The extension request from Energy Northwest is available in ADAMS under Accession No. ML 14080A139.
M. Reddemann -2-* As stated in the NRC staff's interim guidance JLD-ISG-2013-01, "Guidance for Assessment of Flooding Hazards Due to Dam Failure," dated July 29, 2013,5 evaluating flooding hazards for nuclear power plants needs to include consideration of floods resulting from dam failures. The FHR for CGS needs to consider dams that are operated by various government agencies including the USAGE. The NRC has entered into an interagency agreement with the USAGE to provide the necessary information for Energy Northwest to complete its FHR. Therefore, the FHR for CGS cannot be completed until the NRC provides the analysis of the USAGE dams to the licensee.
- As stated in the NRC's letter dated March 1, 2013,6 "incomplete hazard reports that only contain an analysis of some flooding hazard mechanisms would not be of substantive benefit for staff and would not be acceptable." Therefore, the licensee must incorporate the information requested from the USAGE before a flooding hazard reevaluation can be acceptably submitted to the NRC in compliance with the request in the 50.54(f) letter.
- The information requested from the USAGE is an input to the CGS FHR. Therefore, additional time for the licensee to integrate the results into the FHR is necessary. The time requested by Energy Northwest, 60 days, is a reasonable time to complete this integration.
- The limited duration of the proposed extension (60 days after receiving the necessary information) and the fact that Columbia is currently classified as a "dry site," no historical floods have reached plant grade, and the current limiting flood does not reach support the new schedule. Given these considerations, the NRC considers the revised schedule proposed by Energy Northwest to be acceptable. Accordingly, and based upon the authority granted to the Director, Office of Nuclear Reactor Regulation, the revised required response date for submitting the hazard reevaluation report for CGS is 60 days after Energy Northwest receives the USAGE final analysis. The NRC will include the date when the CGS FHR is due when the requested USAGE information is transmitted to the licensee. If you have any questions regarding this matter, or if it is necessary to revise the submittal schedule, please contact your NRC project manager, Mr. Fred Lyon, at (301) 415-2296 or via e-mail at fred.lyon@nrc.gov. Sincerely, ?. Eric J eeds, Director Offic of Nuclear Reactor Regulation Docket No. 50-397 cc: Listserv 5 JLD-ISG-2013-01 is available in ADAMS under Accession No. ML 13151 A 153. 6 NRC's March 1, 2013, letter is available in ADAMS under Accession No. ML 13044A561.
M. Reddemann -2-* As stated in the NRC staff's interim guidance JLD-ISG-2013-01, "Guidance for Assessment of Flooding Hazards Due to Dam Failure," dated July 29, 2013,5 evaluating flooding hazards for nuclear power plants needs to include consideration of floods resulting from dam failures. The FHR for CGS needs to consider dams that are operated by various government agencies including the USACE. The NRC has entered into an interagency agreement with the USACE to provide the necessary information for Energy Northwest to complete its FHR. Therefore, the FHR for CGS cannot be completed until the NRC provides the analysis of the USACE dams to the licensee.
- As stated in the NRC's letter dated March 1, 2013,6 "incomplete hazard reports that only contain an analysis of some flooding hazard mechanisms would not be of substantive benefit for staff and would not be acceptable." Therefore, the licensee must incorporate the information requested from the USACE before a flooding hazard reevaluation can be acceptably submitted to the NRC in compliance with the request in the 50.54(f) letter.
- The information requested from the USACE is an input to the CGS FHR. Therefore, additional time for the licensee to integrate the results into the FHR is necessary. The time requested by Energy Northwest, 60 days, is a reasonable time to complete this integration.
- The limited duration of the proposed extension (60 days after receiving the necessary information) and the fact that Columbia is currently classified as a "dry site," no historical floods have reached plant grade, and the current limiting flood does not reach grade, support the new schedule. Given these considerations, the NRC considers the revised schedule proposed by Energy Northwest to be acceptable. Accordingly, and based upon the authority granted to the Director, Office of Nuclear Reactor Regulation, the revised required response date for submitting the hazard reevaluation report for CGS is 60 days after Energy Northwest receives the USACE final analysis. The NRC will include the date when the CGS FHR is due when the requested USACE information is transmitted to the licensee. If you have any questions regarding this matter, or if it is necessary to revise the submittal schedule, please contact your NRC project manager, Mr. Fred Lyon, at (301) 415-2296 or via e-mail at fred.lyon@nrc.gov. Docket No. 50-397 cc: Listserv Sincerely, IRA/ Eric J. Leeds, Director Office of Nuclear Reactor Regulation 5 JLD-ISG-2013-01 is available in ADAMS under Accession No. ML 13151A153. 6 NRC's March 1, 2013, letter is available in ADAMS under Accession No. ML 13044A561. DISTRIBUTION: See next page ADAMS A N ML 14098A141 ccess1on 0. * . *1 **P v1a ema1 rev1ous v concurre d OFFICE NRR!DORULPL4-1/PM NRRIDORULPL4-1/LA ** QTE* JLD/PMB/PM JLD/PMB/BC** NAME FLyon JBurkhardt CHsu RKuntz** MMitchell DATE 4/24/14 4/8/14 4/11/14 4/21/14 4/21/14 OFFICE NRR!DORULPL4-1/BC** DSEA!RHMB/BC OGC NLO DORUD NRR/D NAME MMarkley CCook BMizuno ME vans ELeeds DATE 4/22/14 4/29/14 5/5/14 5/12/14 5/21/14 OFFICIAL RECORD COPY Letter to Mark E. Reddemann, Energy Northwest, from Eric J. Leeds dated May 21, 2014. DISTRIBUTION: PUBLIC LPL4-1 Reading RidsAcrsAcnw _MaiiCTR Resource RidsNrrOd Resource RidsNrrDorl Resource RidsNrrDorllpl4-1 Resource RidsNrrPMColumbia Resource RidsNrrLAJBurkhardt Resource RidsRgn4MaiiCenter Resource MMitchell, NRR DSkeen, JLD EMiller, DORL RTaylor, JLD RKuntz, JLD