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MONTHYEARML23135A1282023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 18, Figures ML23135A1192023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 8, Figures ML23135A1182023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 6, Figures ML23135A1672023-05-0808 May 2023 6 to Updated Safety Analysis Report, Figures ML23135A1232023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 11, Figures ML23135A1242023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 5, Figures ML23135A1272023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 12, Figures, Redacted ML23135A1212023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 7, Figures ML23135A1202023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 9, Figures, Redacted ML23135A1262023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 1, Figures - Redacted ML23135A1252023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 2, Figures ML23135A1222023-05-0808 May 2023 6 to Updated Safety Analysis Report, Chapter 10, Figures ML23045A1952023-02-14014 February 2023 Transmittal of the National Pollution Discharge Elimination System Permit Renewal Application for Wolf Creek Generating Station I-NE07-PO02 ML22152A1692022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 8, Figures ML22152A1832022-05-18018 May 2022 M-6630-00017A, Appendix G3D to Attachment H, Structural Steel Fireproofing Data, Page G3D-1 of G3D-50 to G5A-63 of G5A-63 ML22152A1772022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 12, Figures - Redacted ML22152A1742022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 5, Figures ML22152A1722022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 10, Figures ML22152A1762022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 1, Figures - Redacted ML22152A1732022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 11, Figures ML22152A1682022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 6, Figures ML22152A1702022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 9, Figures ML22152A1712022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 7, Figures ML22152A1752022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 2, Figures ML22152A1782022-05-18018 May 2022 5 to Updated Safety Analysis Report, Chapter 18, Figures ML21168A1252021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 8, Drawing No. KD-7750, Revision 14, Wolf Creek Substation General Plan ML21168A1262021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 9, Drawing M-12EC01, Revision 23, Piping & Instrumentation Diagram Fuel Pool Cooling and Clean-Up System. Redacted ML21168A1112021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 2, Figures ML21168A1282021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 10, Drawing M-12AC01, Revision 30, Piping & Instrumentation Diagram Main Turbine ML21168A1292021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 11, Drawing M-12HB01, Revision 16, Piping and Instrumentation Diagram Liquid Radwaste System ML21168A1342021-06-0707 June 2021 4 to Updated Safety Analysis Report, Chapter 18, Drawing M-12SJ04, Revision 16, Piping and Instrumentation Diagram Nuclear Sampling System ML20290A6012020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 18, Drawing M12SJ04, Sheet 16, Piping and Instrumentation Diagram ML20290A5992020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 11, Figures ML20290A5982020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 10, Figures ML20290A5912020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 2, Figures ML20290A5972020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 9, Figures ML20290A5962020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 8, Figures ML20290A5922020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 5, Figures ML20290A5692020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Figures ML20290A5942020-07-23023 July 2020 Corrected Redacted Version of Rev. 33 to Updated Safety Analysis Report, Chapter 7, Figures ML19092A0682019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 7, Figure 7.2-1-01 Thru 7.2-1-18 & 7.6-4-2 ML19092A0822019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 18, Figure 18.2-15-00 ML19092A0762019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 11, Figures 11.2-1-01 - 11.4-1-04 ML19092A0722019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 9, Figure 9.1-3-01 Thru 9.5.10-03, Redacted ML19092A0602019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 1, Figure 1.1-1-02 Thru 1.2-44, Redacted ML19092A0622019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 2, Figure 2.4-3-2 Thru 2.4-3-07 ML19092A0642019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 5, Figure 5.1-1-01 Thru 5.4-21 ML19092A0662019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 6, Figure 6.2.2-1-00 Thru 6.3-1-04 ML19092A0702019-03-11011 March 2019 Revision 32 to Updated Safety Analysis Report, Chapter 8, Figure 8.2-3 Thru 8.3-7-00 ML18093A9452018-03-0808 March 2018 Revision 31 to Updated Safety Analysis Report, Chapter 1, Drawings. Redacted 2023-05-08
[Table view] Category:Graphics incl Charts and Tables
MONTHYEARET 23-0006, CFR 50.55a Request Number CI3R-01 for the Third Containment Inservice Inspection Program Interval for Proposed Alternative Frequency to Containment Unbonded Post-Tensioning System Components2023-05-17017 May 2023 CFR 50.55a Request Number CI3R-01 for the Third Containment Inservice Inspection Program Interval for Proposed Alternative Frequency to Containment Unbonded Post-Tensioning System Components ML16056A1392016-03-11011 March 2016 Correction to the U.S. Nuclear Regulatory Commission Analysis of Licensees' Decommissioning Funding Status Reports ML14307B7072014-12-10010 December 2014 Supplemental Information Related to Development of Seismic Risk Evaluations for Information Request Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Seismic Hazard Reevaluations for Recommendation 2.1 of the Near-T 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 WO 14-0032, Supplemental Information for Response to Request for Additional Information Regarding License Amendment Request for the Transition to Westinghouse Core Design and Safety Analysis2014-03-26026 March 2014 Supplemental Information for Response to Request for Additional Information Regarding License Amendment Request for the Transition to Westinghouse Core Design and Safety Analysis ET 14-0011, Second Six-Month Status Report for the Implementation of Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events2014-02-26026 February 2014 Second Six-Month Status Report for the Implementation of Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events 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) ML1019004182010-06-28028 June 2010 Quick View Chart ML1016806592010-06-16016 June 2010 6/16/10 Construction Reactor Oversight Process Category 2 Public Meeting Handout: Baseline Risk Values for Wolf Creek ET 09-0031, Supplemental Information Regarding NRC Request for Additional Information for Responses to Generic Letter (GL) 2004-022009-11-0404 November 2009 Supplemental Information Regarding NRC Request for Additional Information for Responses to Generic Letter (GL) 2004-02 ET 09-0026, Notification of Deviation from EPRI Pressurized Water Reactor Secondary Water Chemistry Guidelines2009-10-25025 October 2009 Notification of Deviation from EPRI Pressurized Water Reactor Secondary Water Chemistry Guidelines ML0728203072007-10-11011 October 2007 Electronic Distribtion Initiative Letter, Licensee List, Electronic Distribution Input Information, Division Plant Mailing Lists ML0426101132004-09-13013 September 2004 Plant Engineering Branch Open Items Interim Safety Basis (URI 2002003-01) 2023-05-17
[Table view] Category:Letter type:ET
MONTHYEARET 23-0006, CFR 50.55a Request Number CI3R-01 for the Third Containment Inservice Inspection Program Interval for Proposed Alternative Frequency to Containment Unbonded Post-Tensioning System Components2023-05-17017 May 2023 CFR 50.55a Request Number CI3R-01 for the Third Containment Inservice Inspection Program Interval for Proposed Alternative Frequency to Containment Unbonded Post-Tensioning System Components ET 23-0005, 10 CFR 50.55a Request Number I4R-08 for the Fourth Inservice Inspection Program Interval, Relief for Extension of Follow Up Examination Requirements for Reactor Pressure Vessel Head Penetration Nozzles with Mitigated Alloy 600/82/182 Peen2023-03-16016 March 2023 10 CFR 50.55a Request Number I4R-08 for the Fourth Inservice Inspection Program Interval, Relief for Extension of Follow Up Examination Requirements for Reactor Pressure Vessel Head Penetration Nozzles with Mitigated Alloy 600/82/182 Peened ET 23-0003, License Amendment Request (LAR) for Removal of the Power Range Neutron Flux Rate - High Negative Rate Trip Function from Technical Specifications2023-03-0101 March 2023 License Amendment Request (LAR) for Removal of the Power Range Neutron Flux Rate - High Negative Rate Trip Function from Technical Specifications ET 23-0002, Supplement to License Amendment Request to Adopt TSTF-577-A, Revision 1, Revised Frequencies for Steam Generator Tube Inspections2023-02-0707 February 2023 Supplement to License Amendment Request to Adopt TSTF-577-A, Revision 1, Revised Frequencies for Steam Generator Tube Inspections ET 23-0004, Response to Requests for Additional Information (RAI) Regarding License Amendment Request (LAR) for Deviation from Fire Protection Program Requirements2023-01-26026 January 2023 Response to Requests for Additional Information (RAI) Regarding License Amendment Request (LAR) for Deviation from Fire Protection Program Requirements ET 22-0006, Operating Corp. - Application to Revise Technical Specifications to Adopt TSTF-577-A, Revision 1, Revised Frequencies for Steam Generator Tube Inspections2022-12-0101 December 2022 Operating Corp. - Application to Revise Technical Specifications to Adopt TSTF-577-A, Revision 1, Revised Frequencies for Steam Generator Tube Inspections ET 22-0010, License Amendment Request (LAR) for Deviation from Fire Protection Program Requirements2022-08-0202 August 2022 License Amendment Request (LAR) for Deviation from Fire Protection Program Requirements ET 22-0012, Supplement to License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating2022-07-12012 July 2022 Supplement to License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating ET 22-0011, Withdrawal of 10 CFR 50.55a Request I4R-08, Relief for Extension of Follow-up Examination and Visual Examination Requirements for Reactor Pressure Vessel Head Penetration Nozzles with Mitigated Alloy 600/82/182 Peened Surface2022-05-31031 May 2022 Withdrawal of 10 CFR 50.55a Request I4R-08, Relief for Extension of Follow-up Examination and Visual Examination Requirements for Reactor Pressure Vessel Head Penetration Nozzles with Mitigated Alloy 600/82/182 Peened Surface ET 22-0005, Response to Request for Additional Information Regarding License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating2022-04-13013 April 2022 Response to Request for Additional Information Regarding License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating ET 22-0003, CFR 50.55a Request I4R-09 for the Fourth Inservice Inspection Program Interval, Relief from Examination of Reactor Vessel Flange Threads2022-04-0606 April 2022 CFR 50.55a Request I4R-09 for the Fourth Inservice Inspection Program Interval, Relief from Examination of Reactor Vessel Flange Threads ET 22-0002, Operating Corp 10 CFR 50.55a Request Number I4R-08 for the Fourth Inservice Inspection Program Interval, Relief for Extension of Follow Up Examination and Visual Examination Requirements for Reactor Pressure Vessel Head .2022-04-0404 April 2022 Operating Corp 10 CFR 50.55a Request Number I4R-08 for the Fourth Inservice Inspection Program Interval, Relief for Extension of Follow Up Examination and Visual Examination Requirements for Reactor Pressure Vessel Head . ET 22-0004, Operating Corp - Response to Request for Confirmation of Information (RCI) Regarding Steam Generator Tube Inspection Report2022-03-15015 March 2022 Operating Corp - Response to Request for Confirmation of Information (RCI) Regarding Steam Generator Tube Inspection Report ET 22-0001, Removal of the Table of Contents from the Technical Specifications2022-01-12012 January 2022 Removal of the Table of Contents from the Technical Specifications ET 21-0017, Response to Request for Additional Information Regarding License Amendment Request - Revision to Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation2021-12-22022 December 2021 Response to Request for Additional Information Regarding License Amendment Request - Revision to Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation ET 21-0009, Results of the Steam Generator Tube Inservice Inspection During the 24th Refueling Outage2021-11-0101 November 2021 Results of the Steam Generator Tube Inservice Inspection During the 24th Refueling Outage ET 21-0015, Withdrawal of License Amendment Request for a Risk-Informed Resolution to GSI-1912021-10-20020 October 2021 Withdrawal of License Amendment Request for a Risk-Informed Resolution to GSI-191 ET 21-0012, Supplement to License Amendment Request for a Risk-Informed Resolution to GSI-1912021-10-11011 October 2021 Supplement to License Amendment Request for a Risk-Informed Resolution to GSI-191 ET 21-0004, License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating2021-09-29029 September 2021 License Amendment Request - Diesel Generator Completion Time Extension for Technical Specification 3.8.1, AC Sources - Operating ET 21-0010, License Amendment Request - Revision to Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation2021-09-29029 September 2021 License Amendment Request - Revision to Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation ET 21-0005, Operating Corp., License Amendment Request for a Risk-Informed Resolution to GSI-1912021-08-12012 August 2021 Operating Corp., License Amendment Request for a Risk-Informed Resolution to GSI-191 ET 20-0013, Response to Request for Additional Information Re Application for Technical Specification Change Re Risk-Informed Justification for Relocation of Specific Surveillance Frequency Requirements to Licensee Controlled Program (TSTF-415)2020-10-26026 October 2020 Response to Request for Additional Information Re Application for Technical Specification Change Re Risk-Informed Justification for Relocation of Specific Surveillance Frequency Requirements to Licensee Controlled Program (TSTF-415) ET 20-0011, Request to Use a Provision of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI2020-10-0101 October 2020 Request to Use a Provision of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI ET 20-0007, License Amendment Request for Replacement of Engineered Safety Features Transformers with New Transformers That Have Active Automatic Load Tap Changers2020-06-0808 June 2020 License Amendment Request for Replacement of Engineered Safety Features Transformers with New Transformers That Have Active Automatic Load Tap Changers ET 20-0008, Operating Corporation Update for Full Implementation of Open Phase Detection System2020-05-20020 May 2020 Operating Corporation Update for Full Implementation of Open Phase Detection System ET 20-0004, Application for Technical Specification Change Regarding Risk-Informed Justification for the Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program (TSTF-425)2020-04-27027 April 2020 Application for Technical Specification Change Regarding Risk-Informed Justification for the Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program (TSTF-425) ET 20-0002, Response to Request for Additional Information Regarding Utilizing Code Case N-666-1, Weld Overlay of Class 1, 2, and 3 Socket Welded Connections, Section XI, Division 12020-01-29029 January 2020 Response to Request for Additional Information Regarding Utilizing Code Case N-666-1, Weld Overlay of Class 1, 2, and 3 Socket Welded Connections, Section XI, Division 1 ET 19-0021, Errata for Supplemental Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation2019-12-0909 December 2019 Errata for Supplemental Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation ET 19-0020, Supplemental Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation2019-11-13013 November 2019 Supplemental Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation ET 19-0019, Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation.2019-09-10010 September 2019 Response to Request for Additional Information Revision to Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation. ET 19-0018, Supplement to License Amendment Request to Revise Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation.2019-08-22022 August 2019 Supplement to License Amendment Request to Revise Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation. ET 19-0014, lnserv1ce Inspection (ISI) Program Relief Request Number 14R-07, to Utilize Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, D1v1s1on 12019-08-15015 August 2019 lnserv1ce Inspection (ISI) Program Relief Request Number 14R-07, to Utilize Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, D1v1s1on 1 ET 19-0002, License Amendment Request to Revise Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation.2019-03-18018 March 2019 License Amendment Request to Revise Technical Specification 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation. ET 19-0008, Response to Request for Additional Information Related to Thermal Conductivity Degradation for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption.2019-03-0505 March 2019 Response to Request for Additional Information Related to Thermal Conductivity Degradation for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption. ET 19-0003, License Amendment Request to Revise Technical Specification 3.6.3 and Surveillance Requirement 3.6.3.1 to Remove Use of a Blind Flange2019-02-25025 February 2019 License Amendment Request to Revise Technical Specification 3.6.3 and Surveillance Requirement 3.6.3.1 to Remove Use of a Blind Flange ET 19-0001, Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 42019-01-23023 January 2019 Application to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 4 ET 18-0032, Operating Corporation Change of Date for Full Implementation of Open Phase Detection System2018-12-0707 December 2018 Operating Corporation Change of Date for Full Implementation of Open Phase Detection System ET 18-0035, Operating Corp., Supplemental Response to RAI for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-12-0606 December 2018 Operating Corp., Supplemental Response to RAI for License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term ET 18-0029, (WCGS) - Results of the Twenty First Steam Generator Tube Inservice Inspection2018-10-31031 October 2018 (WCGS) - Results of the Twenty First Steam Generator Tube Inservice Inspection ET 18-0018, Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-06-19019 June 2018 Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term ET 18-0016, Response to Generic Letter 2016-01, Monitoring of Neutron Absorbing Materials in Spent Fuel Pools Request for Supplemental Information2018-05-29029 May 2018 Response to Generic Letter 2016-01, Monitoring of Neutron Absorbing Materials in Spent Fuel Pools Request for Supplemental Information ET 18-0014, Response to Request for Additional Information Regarding the License Amendment Request for Addition of New Technical Specification 3.7.20, Class 1E Electrical Equipment Air Conditioning (A/C) System.2018-05-29029 May 2018 Response to Request for Additional Information Regarding the License Amendment Request for Addition of New Technical Specification 3.7.20, Class 1E Electrical Equipment Air Conditioning (A/C) System. ET 18-0013, Relief Request Number I4R-06, Request for Relief from ASME Code Case N-729-4 for Reactor Vessel Head Penetration Nozzle Weld2018-05-0202 May 2018 Relief Request Number I4R-06, Request for Relief from ASME Code Case N-729-4 for Reactor Vessel Head Penetration Nozzle Weld ET 18-0011, (WCGS) - Guarantee of Payment of Deferred Premiums2018-04-30030 April 2018 (WCGS) - Guarantee of Payment of Deferred Premiums ET 18-0012, Operating Corp., Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-04-19019 April 2018 Operating Corp., Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term ET 18-0010, Financial Protection Levels2018-03-29029 March 2018 Financial Protection Levels ET 18-0007, Supplement to License Amendment Request for Addition of New Technical Specification 3.7.20, Class 1E Electrical Equipment Air Conditioning (A/C) System.2018-02-15015 February 2018 Supplement to License Amendment Request for Addition of New Technical Specification 3.7.20, Class 1E Electrical Equipment Air Conditioning (A/C) System. ET 18-0005, Withdrawal of License Amendment Request for Revision to the Emergency Plan2018-02-0505 February 2018 Withdrawal of License Amendment Request for Revision to the Emergency Plan ET 18-0004, Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term2018-01-29029 January 2018 Supplement to License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analysis Including Adoption of Alternative Source Term ET 17-0025, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analyses Including Adoption of Alternative Source Term2017-11-14014 November 2017 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specifications to Transition to Westinghouse Core Design and Safety Analyses Including Adoption of Alternative Source Term 2023-05-17
[Table view] Category:Photograph
MONTHYEARML16076A2992016-03-0303 March 2016 Wolf Greek Generating Station - After Action Report/Improvement Plan ML13246A3622013-08-29029 August 2013 Photographs of Pictures of Cables from Wolf Creek ML13058A2072013-02-26026 February 2013 Ongoing SG Inspection Results for RFO 19 ET 09-0031, Supplemental Information Regarding NRC Request for Additional Information for Responses to Generic Letter (GL) 2004-022009-11-0404 November 2009 Supplemental Information Regarding NRC Request for Additional Information for Responses to Generic Letter (GL) 2004-02 ML0714303632007-05-0909 May 2007 Responses 2 - 10, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application ML0714303562007-05-0909 May 2007 Response 1, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application, Consisting of Aerial Photographs of the Site Dating Back to Before and During Site Preparation and Plant Construction ML0714303532007-05-0909 May 2007 Response 1, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application, Consisting of 1991 Coffey County Post Construction Image ML0714303522007-05-0909 May 2007 Response 1, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application, Consisting of 1979 Coffey County Preconstruction Image ML0714303502007-05-0909 May 2007 Response 1, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application, Consisting of 1985 Neosho River Between Burlington and Leroy Ks ML0714303472007-05-0909 May 2007 Response 1, to Master List for Audit Needs of NRC Request for Additional Information Re License Renewal Application, Consisting of 1985 John Redmond Reservoir 2016-03-03
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WF CREEK NUCLEAR OPERATING CORPORATION Terry J. Garrett Vice President Engineering November 4, 2009 ET 09-0031 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
References:
- 1. Letter ET 08-0003, dated February 29, 2008, from T. J. Garrett, WCNOC, to USNRC
- 2. Letter ET 08-0053, dated December 22, 2008, from T. J.
Garrett, WCNOC, to USNRC
- 3. Letter dated July 31, 2009, from USNRC to R. A. Muench, WCNOC (ADAMS Accession No. ML092030628)
- 4. Letter dated September 28, 2009, from USNRC to R. A.
Muench, WCNOC (ADAMS Accession No. ML092460714)
Subject:
Docket No. 50-482: Supplemental Information Regarding NRC Request for Additional Information for Responses to Generic Letter (GL) 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors" Gentlemen:
By letter dated July 31, 2009 (Reference 3), NRC transmitted a request for additional information (RAI) regarding the Wolf Creek Nuclear Operating Corporation (WCNOC) responses to Generic Letter (GL) 2004-02 (References 1 and 2, ADAMS Accession Nos.
ML080700356 and ML090060877, respectively). WCNOC and Union Electric Company (AmerenUE) subsequently participated in a public phone call with the NRC on August 27, 2009 (Reference 4). During the August 27th phone call with the NRC, WCNOC and AmerenUE agreed to provide a video of the testing performed by ALDEN Research Laboratory, Inc. (Alden) showing separation of the fibrous debris in representative and conservative manner for NRC staff review.
Pursuant to 10 CFR 50.54(f), this letter provides video descriptions of the Alden testing in support of WCNOC's response to the NRC's GL 2004-02 RAIs (Reference 3). Enclosure I to this letter provides a description of the transport tests performed, and Enclosures II and III provide the digital video disks (DVDs) of two transport tests. As stated in Enclosure I, the vendor testing performed supports both Wolf Creek Generating Station and Callaway Plant.
P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNET 41ý)
kl4lý-
ET 09-0031 Page 2 of 3 No regulatory commitments are made to the NRC by this letter. If you have any questions concerning this matter, please contact me at (620) 364-4084, or Mr. Richard D. Flannigan at (620) 364-4117.
Sincerely, Terry J. Garrett TJG/rlt
Enclosures:
II Alden Video Description of the Fiber Debris Transport Testing IIl Video of Flume Transport Test #1, Latent Fiber Transport Test Video of Flume Transport Test #2, Smalls Transport Test cc: E. E. Collins (NRC), w/e G. B. Miller (NRC), w/e B. K. Singal (NRC), wle M. C. Thadani, (NRC), wie Senior Resident Inspector (NRC), wo/e
ET 09-0031 Page 3 of 3 STATE OF KANSAS )
SS COUNTY OF COFFEY )
Terry J. Garrett, of lawful age, being first duly sworn upon oath says that he is Vice President Engineering of Wolf Creek Nuclear Operating Corporation; that he has read the foregoing document and knows the contents thereof; that he has executed the same for and on behalf of said Corporation with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.
TerBJ. Garrett Vice President Engineering SUBSCRIBED and sworn to before me this LV/, day of oovember- 2009.
RHONDA L.TIEMEYER Notary Public v--SA.- My COMMISSION EXPIRES J......anuary 2010 11, Expiration Datej01aUZ2JJ / )
- T
Enclosure I to ET 09-0031 Page 1 of 11 Enclosed is the report by ALDEN Research Laboratory, Inc. describing the fiber debris transport testing performed for Wolf Creek Generating Station and Callaway Plant.
A LDEN -olving TIOW problems since 1 bV4 November 2, 2009 Fiber debris transport testing for the Wolf Creek and Callaway power plants For the testing there are two video cameras that are taping the flume. The right most screen is the upstream camera and is intended to show the debris introduction. The left camera shows the transport of material downstream of the introduction. Flow is therefore from right to left for both video screens.
The testing was conducted in the small flume for visualization purposes. The testing is intended to replicate flume velocities generated during full scale head loss testing completed previously for the Wolf Creek and Callaway power plants. The velocity plot used for full scale head loss testing is shown in Figure 1, and the wall geometry tested in full scale head-loss testing is shown in Figure 2.
0.33 0.31 0.29 SO0.27
.2 0.25 0.23 0.21 0.19 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Distance Back From Sump Edge (FT)
Figure 1. Approach velocity profile ALDEN Research Laboratory, Inc. 508-829-6000/phone
- 508-829-5939/fax 30 Shrewsbury Street, Holden, Massachusetts 01520-1843 info@aldenlab.com
ALDEN November 2, 2009 Lengthwise Dimensions Widthwise Dimensions o Figure 2. Large flume configuration For the small flume tests documented herein, the approach velocity profile over the last 16 feet of flow stream is replicated, corresponding to the region of the profile containing the slowest velocities. Replicating the slowest velocities represents a conservative approach to showing that the latent fiber settled on the floor after introduction with the pump stopped can be readily transported to the strainers. Likewise, replicating the slowest velocities for debris introduction is conservative because the shear induced release of fines will be relatively lower at lower velocities. The flow rate to achieve the target velocities is approximately 439.4 gpm. The flume plan view is shown below in Figure 3. The flume water depth for the present testing is maintained at the large flume test level of 28".
Figure 3. Small flume flow configuration
ALDEN November 2, 2009 rigure 4. Clean strainer at start ot test Test 1 Nukon fines added to a quiescent flume water column 0 0:00 - 0:51 (14:32:59 - 14:33:50): The pump for the flume is off and the flume is quiescent. (Figure 4)
- 0:51 - 2:25 (14:33:50 - 14:35:24): The Nukon fines (0.25 ibm), prepared as during head loss testing with electric drill and mixing paddle, are being added across the length of the flume. The fiber breaks up upon entry into the flume. The fiber falls relatively uniformly, while some clouds of less dense fiber can be observed.
ALDEN November 2, 2009 Figure 5. Latent fiber settling on flume floor
- 2:25 - 8:43 (14:35:24 - 14:41:42): The fiber has all been placed into the flume, and the five minute settling period has begun. All of the fiber will have settled onto the flume floor by the end of this five minute period.
0 8:43 - 10:05 (14:41:42- 14:42:04): The pump has just been started and the flow rate of 439.4 gpm or slightly higher has been established in the flume. The fiber can be observed moving downstream. A cloud of fiber is lifted off of the flume floor and transports downstream.
Figure 6. Latent fiber leading edge being pulled downstream
ALDEN
-5 - November 2, 2009
- 10:05 - 16:40 (14:42:04 - 14:49:39): More than half the fiber has moved downstream and little fiber remains to be transported. The movement of the fiber downstream is still occurring but at a reduced rate (Figure 6).
- 16:40 - 37:18 (14:49:39 - 15:10:17): More than 3/4 of the fiber has transported to the strainer by this time. The last small tufts of fiber are bein trans orted to the strainer.
Figure 7. Latent fiber on screen at test termination The quantity of Nukon fines introduced represents the smallest quantity that allows straightforward visualization of transport. Based on the surface area of the flume model, the directly scaled debris quantity would have been 0.125 Ibm. It is conservative to determine fiber transport with a higher density of fiber settled on the floor as the likelihood of generating larger agglomerations that do not transport to the strainer is greater.
Figure 8 shows the head loss profile as a function of time at the strainer. Although absolute measured values do not have particular meaning, the profile of head-loss is still relevant. On this time scale (not synchronized to the video), the pump is started just beyond the 6 minute mark. The head loss rises quickly due to the transported fiber. The rate of increase slows considerably with time, as expected. The head-loss curve also confirms that a large portion of the introduced latent fiber, greater than 80%, was transported to the strainer within 15 minutes of pump start. Visual inspection of the flume at the end of testing confirmed that all latent fiber transported to the strainer area. This conclusion is further supported by the very flat head loss curve near the test termination.
ALDEN November 2, 2009 1.9 1.85 1.8 1.75 1.7 o 1.65 1.6 1.55 1.5 1.45 1.4 00:00 05:00 10:00 15:00 20:00 25:00 30:00 35:00 40:00 45:00 50:00 Test time (min:secs)
Figure 8. Head-loss profile for latent fiber addition
ALDEN November 2, 2009 Test 2 Nukon Smalls added to the flume with an established flow
- 0:00 - 1:37 (15:34:54 - 15:36:31): The flow rate of approximately 439.4 gpm is established in the flume.
- 1:37 - 2:51 (15:36:31 - 15:37:45): The Nukon small fiber is added in the same manner as the fiber was added in the large flume testing. A total of 2.24 lbs of Nukon has been introduced into the flume at this time. A debris cloud of lighter fiber can be observed breaking away during the introduction (Figure 9).
e 2:51 - 5:00 (15:37:45 - 15:39:54): The lighter smaller fiber and individual fiber is transporting to the strainer at this time, while the heavier fiber material is starting to accumulate on the floor (Figure 10). It should be noted that small agglomerations of fiber or "clumps" can be seen entering the water column on introduction. These small clumps form very quickly in the introduction vessel. The water used to wet and prepare the debris is hot (approximately 120 0 F, similar to the conditions for head loss testing) to remove entrapped air. This also leads to rapid settling of the fiber to the bottom of the introduction vessel (fiber settles very quickly in hot water) once mixing has ceased. The clumps are thus not formed by inadequate mixing but by rapid settling of the fiber in the preparation bucket. As such, the clumps that are formed from fiber loosely settling in the introduction vessel can be seen to break up readily in the water column and release entrapped fines and disintegrate into even smaller clumps of fiber. The video shows what appear to be several additions of fiber. However, the additions represent the rinsing of the fiber from the bottom of the bucket which is also performed during head loss testing.
ALDEN November 2, 2009 Figure 10. Fibers settling in flume downstream of introduction 0 5:00 - 6:02 (15:39:54 - 15:40:56): The flow rate is still being maintained. At this point in time a large pile, approximately 6" high and several feet long has established itself in the flume. This pile is located approximately 10 feet from the area of introduction. The velocity at this point is lower than the introduction zone causing the debris transport to slow. The velocity profile followed for the flume parallels the selected portion of the head loss flume approach velocity profile (see above). The settling observed here is prototypical of large flume head-loss tests at similar velocities.
- 6:02 - 6:58 (15:40:56 - 15:41:52): All of the fiber has been added to the flume.
- 6:58 - 9:51 (15:41:52 - 15:44:45): The fiber that has been introduced into the flume has all either settled or transported to the strainer. The fiber that is moving in the video is all being transported across the bed of fiber on the flume floor. The fiber pile is releasing small tufts from the leading edge of the debris pile.
- 9:51 - 50:00 (15:44:45 - 16:24:54): The release of tufts from the leading edge of the fiber pile continuously slows. Some additional small fiber pieces continue to break away, but the pile size and shape remains largely unaffected.
- 50:00 - 55:00 (16:24:54 - 16:29:59): Documentation of the location of the fiber has taken place at this time.
The introduced quantity of smalls is calculated based on a volume flow rate ratio between the head loss test and the presently conducted transport test. The scaling on flow rate is appropriate for drop-zone introduced debris. The total amount of smalls introduced for the transport test is further divided by the number of batches employed to introduce the debris into the head loss test (5). The transport test thus reproduces appropriately the debris concentration employed during head loss testing.
Figure 11 shows a picture of the strainer near the end of testing. It is clear from this picture that a significant amount of fines were released from the smalls and traveled to the strainer. Given that Figure 7 shows the picture of 0.25 lb of latent fine fiber on the screen, it is possible to
ALDEN November 2, 2009 conservatively conclude that at least twice this amount separated from the introduced small fiber and made it to the strainer in the smalls introduction test.
Figure 12 shows the head-loss profile as a function of time for this test. Note the relatively quick steep initial increase. This is evidence of fines directly transported through the water column to the strainer. The slower rate of increase later in the test is indicative of floor transport of debris and is much more gradual. However, the most significant jump in head loss occurs in the early part of testing and supports the significant fines release estimate made above. The transport time for the flow to move from the introduction zone to the strainer is approximately 2 min 30 secs, based on an average velocity of 0.21 ft/sec over the modeled length of the head loss flume.
Based on this and the fact that debris introduction starts at approximately 1 min 37 secs into the test, debris suspended in the water column would begin causing an increase in head loss at approximately 4 minutes as observed in Figure 12. Furthermore, note that debris introduction ends at 6 min 58 secs into the test. Fiber transported suspended through the water column from the last amount of introduced fiber therefore is expected to reach the strainer at 9 min 30 secs.
The head loss curve shown in Figure 12 shows a clear change in the slope at this point. It can therefore be concluded that a significant amount of fiber separated upon introduction and traveled to the strainer suspended in the water column, a behavior consistent with fiber fines.
Note that the video shows further release of fine fiber tufts that transport to the strainer and cause the slower rate of head loss increase observed over the remaining period.
ALDEN
- 10 - November 2, 2009 2.8 2.7 2.6 2.5 2.4 A 2.3 2.21 2
1.9 1.8 00:00 05:00 10:00 15:00 20:00 25:00 30:00 35:00 40:00 45:00 50:00 Test time (min:secs)
Figure 12. Head loss profile in time for smalls addition
Enclosure II to ET 09-0031 Page 1 of 1 Enclosed is the digital video disk (DVD) submittal of the ALDEN Research Laboratory, Inc. test described in Enclosure I. The DVD is labeled: Flume Transport Test #1, Latent Fiber Transport Test.
Enclosure III to ET 09-0031 Page 1 of 1 Enclosed is the digital video disk (DVD) submittal of the ALDEN Research Laboratory, Inc. test described in Enclosure I. The DVD is labeled: Video of Flume Transport Test #2, Smalls Transport Test.