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Category:Letter type:WM
MONTHYEARWM 23-0009, Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1)2023-05-10010 May 2023 Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1) WM 22-0004, Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel - Form 405F Amendment2022-07-27027 July 2022 Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel - Form 405F Amendment WM 22-0003, Operating Corp. - Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel - Form 405F Amendment2022-05-26026 May 2022 Operating Corp. - Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel - Form 405F Amendment WM 21-0005, Supplement to License Amendment Request for Change to Owner Licensee Names2021-05-24024 May 2021 Supplement to License Amendment Request for Change to Owner Licensee Names WM 21-0003, Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1)2021-03-31031 March 2021 Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1) WM 20-0006, (WCGS) - License Amendment Request for Change to Owner Licensee Names2020-11-0404 November 2020 (WCGS) - License Amendment Request for Change to Owner Licensee Names WM 20-0009, Notification of Readiness for Supplemental Inspection 927222020-09-0808 September 2020 Notification of Readiness for Supplemental Inspection 92722 WM 19-0022, Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2019-07-17017 July 2019 Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 19-0017, Operating Corp., Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2019-04-25025 April 2019 Operating Corp., Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 19-0008, Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1)2019-04-10010 April 2019 Financial Assurance Requirements for Decommissioning Nuclear Power Reactors 10 CFR 50.75(f)(1) WM 19-0009, Operating Corporation Foreign Ownership, Control or Influence Information - Change to Lists of Owners, Officers, Directors, and Executive Personnel2019-03-25025 March 2019 Operating Corporation Foreign Ownership, Control or Influence Information - Change to Lists of Owners, Officers, Directors, and Executive Personnel WM 19-0006, Operating Corp Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2019-02-20020 February 2019 Operating Corp Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 19-0003, Notice of Violation and Proposed Imposition of Civil Penalty Statement of Method of Payment2019-01-16016 January 2019 Notice of Violation and Proposed Imposition of Civil Penalty Statement of Method of Payment WM 19-0002, Transmittal of Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2019-01-10010 January 2019 Transmittal of Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 18-0047, Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2018-10-0808 October 2018 Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 18-0040, Transmittal of Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2018-07-25025 July 2018 Transmittal of Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 18-0039, Schedule for the Wolf Creek Nuclear Operating Corporation (WCNOC) Re-Analysis of the LBLOCA and SBLOCA Using the Full Spectrum LOCA (Fsloca) Methodology and the Performance and Analysis Design (PADS) Model, Amendment 213 License Condition2018-07-0303 July 2018 Schedule for the Wolf Creek Nuclear Operating Corporation (WCNOC) Re-Analysis of the LBLOCA and SBLOCA Using the Full Spectrum LOCA (Fsloca) Methodology and the Performance and Analysis Design (PADS) Model, Amendment 213 License Condition t WM 18-0037, Transmittal of Wolf Creek Nuclear Operating Corporation'S(Wcnoc) and Its Owner Companies' Updated Lists of Owners, Officers, Directors and Executive Personnel (Oodep)2018-06-28028 June 2018 Transmittal of Wolf Creek Nuclear Operating Corporation'S(Wcnoc) and Its Owner Companies' Updated Lists of Owners, Officers, Directors and Executive Personnel (Oodep) WM 18-0035, Notice of Receipt of Regulatory Approvals & Closing Date2018-05-29029 May 2018 Notice of Receipt of Regulatory Approvals & Closing Date WM 18-0034, Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel2018-04-26026 April 2018 Foreign Ownership, Control or Influence (FOCI) Information - Change to Lists of Owners, Officers, Directors and Executive Personnel WM 17-0021, Updated Request for Consent to Indirect Transfer of Control2017-09-0505 September 2017 Updated Request for Consent to Indirect Transfer of Control WM 16-0016, Response to Non-Cited Violation 050000482/2016003-012016-12-0808 December 2016 Response to Non-Cited Violation 050000482/2016003-01 WM 16-0013, Operating Corp., Request for Consent to Indirect Transfer of Control2016-07-22022 July 2016 Operating Corp., Request for Consent to Indirect Transfer of Control WM 16-0006, Reply to Notice of Violation EA-16-0182016-03-10010 March 2016 Reply to Notice of Violation EA-16-018 WM 16-0005, Submittal of Updated Safety Analysis Report (Usar), Revision 292016-03-10010 March 2016 Submittal of Updated Safety Analysis Report (Usar), Revision 29 WM 15-0017, Commitment to Maintain Severe Accident Management Guidelines2015-12-14014 December 2015 Commitment to Maintain Severe Accident Management Guidelines WM 14-0026, 30-Day Response on Planned Actions to Restore Compliance Regarding Essential Service Water Design Issues2014-12-16016 December 2014 30-Day Response on Planned Actions to Restore Compliance Regarding Essential Service Water Design Issues WM 14-0024, Cel Inspection Readiness Letter 11-13-142014-11-13013 November 2014 Cel Inspection Readiness Letter 11-13-14 WM 14-0017, Reply to a Notice of Violation; EA-14-0242014-07-29029 July 2014 Reply to a Notice of Violation; EA-14-024 WM 14-0016, Notification of Readiness for Supplemental Inspection2014-07-0808 July 2014 Notification of Readiness for Supplemental Inspection WM 14-0011, Change to an Essential Service Water System Water Hammer Mitigation Commitment2014-05-0808 May 2014 Change to an Essential Service Water System Water Hammer Mitigation Commitment WM 14-0013, Voluntary Commitment Regarding Containment Coolers at Wolf Creek Generating Station2014-05-0808 May 2014 Voluntary Commitment Regarding Containment Coolers at Wolf Creek Generating Station WM 14-0008, Request for Regulatory Conference (EA-14-024)2014-04-0909 April 2014 Request for Regulatory Conference (EA-14-024) WM 13-0021, Response to NRC Letter Regarding Work Environment Issues at Wolf Creek Generating Station2013-09-18018 September 2013 Response to NRC Letter Regarding Work Environment Issues at Wolf Creek Generating Station WM 13-0014, Commitment to NRC Regarding Actions Necessary to Increase Safety Margins Through Ongoing Actions to Resolve Substantive Cross-Cutting Issues (Sccis)2013-06-27027 June 2013 Commitment to NRC Regarding Actions Necessary to Increase Safety Margins Through Ongoing Actions to Resolve Substantive Cross-Cutting Issues (Sccis) WM 13-0008, Notification of Readiness for Inspection Procedure 95002, Supplemental Inspection for One Degraded Cornerstone or Any Three White Inputs in a Strategic Performance Area2013-04-30030 April 2013 Notification of Readiness for Inspection Procedure 95002, Supplemental Inspection for One Degraded Cornerstone or Any Three White Inputs in a Strategic Performance Area WM 13-0002, Operating Corporation - Response to NRC Follow-Up Letter on Technical Issues for Resolution Regarding Licensee Communication Submittals Associated with Near-Term Task Force Recommendation 9.32013-02-26026 February 2013 Operating Corporation - Response to NRC Follow-Up Letter on Technical Issues for Resolution Regarding Licensee Communication Submittals Associated with Near-Term Task Force Recommendation 9.3 WM 12-0041, Operating Corporation - Submittal of Emergency Preparedness Communications Assessment Results in Response to Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendation 9.3.2012-10-31031 October 2012 Operating Corporation - Submittal of Emergency Preparedness Communications Assessment Results in Response to Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendation 9.3. WM 12-0039, Reply to Notice of Violation EA-12-1522012-10-18018 October 2012 Reply to Notice of Violation EA-12-152 WM 12-0029, Response to NRC Augmented Inspection Team Follow-up Report 05000482/2012009; Preliminary Yellow Finding2012-08-15015 August 2012 Response to NRC Augmented Inspection Team Follow-up Report 05000482/2012009; Preliminary Yellow Finding WM 12-0023, Reply to Notice of Violation EA-12-1352012-08-0202 August 2012 Reply to Notice of Violation EA-12-135 WM 12-0013, Notification of Readiness for Inspection of Human Performance and Problem Identification and Resolution Safety Culture Themes2012-05-0707 May 2012 Notification of Readiness for Inspection of Human Performance and Problem Identification and Resolution Safety Culture Themes WM 12-0008, Operating Corporation'S Answer to March 12, 2012 Commission Order Modifying License with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Event (Order Number EA-12-049)2012-04-0202 April 2012 Operating Corporation'S Answer to March 12, 2012 Commission Order Modifying License with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Event (Order Number EA-12-049) WM 12-0010, Receipt Confirmation for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2012-04-0202 April 2012 Receipt Confirmation for Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident WM 12-0009, Operating Corporation'S Answer to March 12, 2012 Commission Order Modifying License with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)2012-04-0202 April 2012 Operating Corporation'S Answer to March 12, 2012 Commission Order Modifying License with Regard to Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051) WM 12-0003, Response to NRC Request for Additional Information Regarding 60-day Response to NRC Bulletin 2011-01,Mitigating Strategies2012-01-15015 January 2012 Response to NRC Request for Additional Information Regarding 60-day Response to NRC Bulletin 2011-01,Mitigating Strategies WM 11-0011, 30 Day Response to Mid-Cycle Performance Review and Inspection Plan - Wolf Creek Generating Station2011-09-30030 September 2011 30 Day Response to Mid-Cycle Performance Review and Inspection Plan - Wolf Creek Generating Station WM 11-0009, Reply to Notice of Violation EA-11-1492011-09-0909 September 2011 Reply to Notice of Violation EA-11-149 WM 10-0029, Reply to Notice of Violation EA-10-1602010-10-11011 October 2010 Reply to Notice of Violation EA-10-160 WM 10-0024, Day Response to Mid-Cycle Performance Review and Inspection Plan2010-09-30030 September 2010 Day Response to Mid-Cycle Performance Review and Inspection Plan 2023-05-10
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WOLF- CREEK 'NUCLEAR OPERATING CORPORATION Matthew W. Sunseri Vice President Oversight October 13, 2004 WM 04-0042 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001
Reference:
Letter WO 04-0002 dated March 3, 2004, from B. T. McKinney, WCNOC, to USNRC
Subject:
Docket Number 50-482: Withdrawal of Defense-In-Depth and Diversity Assessment for Digital Upgrade of Wolf Creek Generating Station's Instrumentation and Control Systems Gentlemen:
By the Reference, Wolf Creek Nuclear Operating Corporation (WCNOC) submitted a defense-in-depth and diversity assessment for the Framatome Advanced Nuclear Power (FANP)
Teleperm XS (TXS) systems to be installed at the Wolf Creek Generating Station (WCGS). In the Reference, WCNOC noted that it was working in conjunction with AmerenUE to develop modification plans for replacing current analog-based instrumentation and control systems, including the reactor trip system (RTS) and engineered safety features actuation system (ESFAS) with the digital-based FANP TXS system, for WCGS and the Callaway Plant.
WCNOC indicated that it was submitting the defense-in-depth and diversity assessment for NRC approval in conjunction with AmerenUE and that the assessment was intended to support future license amendment requests (LARs) that would be submitted by WCNOC (for WCGS)
-and AmerenUE (for Callaway). NRC review and approval of the assessment was requested by December 1, 2004.
The defense-in-depth and diversity assessment (that was attached to the Reference) addressed the TXS design generically described in Topical Report EMF-2110(NP), Revision 1, "T ELEPERM XS: A Digital Reactor Protection System," and for which the NRC documented its acceptance by letter dated May 5, 2000. The defense-in-depth and diversity assessment was based on this design and also, in part, on the results of a meeting conducted between AmerenUE, WCNOC, FANP and NRC personnel on November 12, 2003, wherein the defense-in-depth and diversity aspects of the TXS design. were'discussed, including the potential utilization of diverse processors to minimize the probability of a software common-mode failure.
The assessment described the design techniques applied to the TXS design and explained how the application of defense-in-depth and diversity concepts to both the software and hardware design result in the capability to minimize or tolerate common-mode failures without defeating safety functions.
RO. Box 411 Burlington, KS 66839 1 Phone: (620) 364-8831 An Equal Opportunhy Employer M/FJHCNIET
WM 04-0042 Page 2 Pursuant to the NRC's guidance in NUREG 0800, "Standard Review Plan for the Review of Safety Analysis Reports for Nuclear-Power Plants," Branch Technical Position (BTP) HICB-19,
-Guidance for Evaluation -of -Defense-in-Depth and Diversity in Digital Computer-Based Instrumentation and Control Systems," the defense-in-depth and diversity assessment included a :re-evaluation-of the accidents, transients and other events postulated and-analyzed in the Updated Safety Analysis Report (USAR) to assess the postulated plant response to these
-events with the TXS system installed. The assessment concluded that a postulated software common-mode failure would be limited to the extent that credited, automatic RTS and/or ESFAS functions would remain available to adequately mitigate all postulated events consistent with the current licensing basis. -
Subsequent to submittal of the defense-in-depth and diversity assessment, the NRC staff provided significant comments on the - TXS design and defense-in-depth and diversity assessment in the form of a preliminary position paper. The comments were discussed in a second meeting between AmerenUE, WCNOC, -FANP and NRC staff on April 15, 2004.
Based in part on the discussion from the April 15, 2004 meeting,- WCNOC and AmerenUE have
- - each determined that the defense-in-depth and diversity assessment should be withdrawn. In addition, the implementation schedule for the TXS modifications at each plant has since been re-evaluated resulting in postponement of the modifications at each plant. .-On this basis, WCNOC requests withdrawal of -the defense-in-depth and diversity~assessment that was provided in the Reference, such that NRC review and approval of that assessment is no longer required. Please contact me at (620) 364-4008, or Mr. Kevin Moles at (620) 364-4126 for any
- questions you may have regarding this submittal. -
Very truly yours, Matthew W. Sunseri
- -Vice President Oversight MWS/rIg -
cc: V. L. Cooper (KDHE) _ -
J. N. Donohew (NRC)
D. N. Graves (NRC)
B. S. Mallett (NRC) -
Senior Resident Inspector (NRC)