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Category:Memoranda
MONTHYEARML23179A2132023-07-0505 July 2023
Approval for Credit for the Wolf Creek Generating Station Operational Safety Review Team to the Baseline Inspection Samples/Hours
ML22165A0882022-06-14014 June 2022
Information Request, Security IR 2022403
ML22147A0932022-06-0606 June 2022
2021 Annual Assessment Public Meeting Summary
ML22034A3932022-02-16016 February 2022
Calendar Year 2021 Security Baseline Completion Memo
ML21309A5482021-11-15015 November 2021
NSIR Staff Review of the Wolf Creek Generating Stations Security Plan Training & Qualification Plan & Safeguards Contingency Plan for the Verification of ASM EA 20 091 Incorporation
ML21243A4492021-09-0202 September 2021
ISFSI Technical Assistance Request - Review of Physical Security Plan
ML21140A3892021-05-24024 May 2021
Riv Column 1 EOC 2020 Public Meeting Summary
ML18173A0082018-06-20020 June 2018
Cancelling Numerous Inspection Report Numbers
ML17019A2912017-01-19019 January 2017
Notice of Closed Regulatory Conference with Wolf Creek Generating Station
ML17019A2932017-01-19019 January 2017
Notice of Closed Regulatory Conference with Wolf Creek Generating Station
ML16064A1872016-03-0404 March 2016
Closed Pre-Decisional Enforcement Conference with Wolf Creek Nuclear Operating Corporation
ML15251A0092015-09-11011 September 2015
Review of Revision 28 to the Updated Safety Analysis Report
ML15015A1712015-01-0808 January 2015
Focused Baseline Inspection at the Wolf Creek Site for a Major Essential Service Water Modification
ML14197A3442014-07-25025 July 2014
Review of Revision 27 to the Updated Safety Analysis Report
ML13204A2432013-07-24024 July 2013
Notice of Preapplication Meeting with Wolf Creek Nuclear Operating Corporation to Discuss Long-Term Corrective Actions for Water Hammer Events in the Essential Service Water System at Wolf Creek
ML13109A2342013-07-12012 July 2013
Safety Evaluation Regarding Wolf Creek Generating Station - Loss of Offsite Power and Augmented Inspection, Issue for Resolution 2012-004
ML13179A1012013-07-0909 July 2013
7/30/13 Notice of Forthcoming Preapplication Meeting with Wolf Creek Nuclear Operating Company to Discuss Proposed Transition to Westinghouse Methodologies for Core Design and Non-LOCA Safety Analyses at Wolf Creek Generating Station
ML13093A0592013-04-0202 April 2013
Public Meeting with Wolf Creek Nuclear Operating Corporation to Discuss the Performance Assessment Results for Wolf Creek Generating Station for 2012
ML13078A1552013-03-20020 March 2013
License Amendment Request to Change Diesel Generator Surveillance Requirements
ML12249A0292012-09-0606 September 2012
9/20/12 Notice of Meeting with Wolf Creek Nuclear Operating Corporation to Discuss Transition from Current to NRC-Approved Westinghouse Methodologies for Performing the Core Design and Non-LOCA Safety Wolf Creek Station
ML1222602142012-08-16016 August 2012
Iolb Evaluation of Ifr 2012-04 Relating to Wolf Creek Loss of Offsite Power and Notification of Unusual Event
ML12011A1012012-01-19019 January 2012
Summary of Meeting with NEI and to Address Di&C Issues
ML1101106702011-02-0707 February 2011
Fire Protection Safety Evaluation Input for Wolf Creek Generating Station Regarding License Amendment Request for Deviation from the Fire Protection Program Requirements
ML1006010322010-03-0101 March 2010
Cy 2009 Baseline Inspection Completion
ML0929300152009-10-20020 October 2009
Revised Notice of Meeting with Union Electric Company and Wolf Creek Nuclear Operating Company to Discuss NRC Requests for Additional Information on Generic Letter 2004-02
ML0928003162009-10-16016 October 2009
Notice of Meeting with Union Electric Company and Wolf Creek Nuclear Operating Company to Discuss NRC Requests for Additional Information on Generic Letter 2004-02 Sent 7/31/0209 and 8/27/2009, Respectively
ML0925404602009-09-10010 September 2009
Summary of Phone Call with Industry to Issues Related to Eccentricity of the Steam Generator Tube-to-Tubesheet Joints in the Finite Element Model Used for the Technical Basis of the Permanent Alternate Repair Criteria License Amendment Requ
ML0920306202009-07-31031 July 2009
Notice of Forthcoming Conference Call with Union Electric Company and Wolf Creek Nuclear Operating Company Re Draft Requests for Additional Information on Generic Letter 2004-02 for Callaway Plant and Wolf Creek Creek Generating Station
ML0917002962009-07-30030 July 2009
Issuance of Amendment 183, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, to Extend the Surveillance Frequency on ESFAS Slave Relays from 92 Days to 18 Months
ML0835705252008-12-24024 December 2008
Meeting Notice, Meeting with Wolf Creek Nuclear Operating Corporation to Discuss Pre-Application of Post-fire Safe Shutdown Issues at Wolf Creek
ML0829405182008-11-10010 November 2008
Renewal of Full-Power Operating License for the Wolf Creek Generating Station, Unit 1
ML0813006882008-05-0909 May 2008
03/05/2008 Meeting Minutes of Subcommittee on Plant License Renewal Regarding Wolf Creek Generating Station
ML0812001002008-04-29029 April 2008
End of Cycle Meeting with Wolf Creek Nuclear Operation Corporation
IR 05000482/20080072008-04-24024 April 2008
IR 05000482-08-007, on 01/15/2008 - 03/13/2008, Wolf Creek Generating Station, NRC Special Inspection
ML0810805452008-04-18018 April 2008
05/01/2008-Notice of Forthcoming Meeting with Wolf Creek Nuclear Operating Corporation to Discuss Safety Evaluation Report Open Items Related to Metal Fatigue Analyses for License Renewal
ML0807904692008-04-10010 April 2008
Summary of Teleconference with Wolf Creek Nuclear Operating Corporation, Ameren Union Electric Company for Callaway Plant, and Performance Contracting, Inc. Containment Sump Head Loss Testing
ML0802500852008-03-26026 March 2008
Summary of Second Conference Call Held on January 16, 2008, with PWR Licensees on New Temporary License Amendment Needed for Steam Generator Tube Inspections in Spring 2008 Refueling Outages
ML0807404192008-03-14014 March 2008
Assessment of Inspections of Dissimilar Metal Butt Welds in a Retired Pressurizer
ML0807400842008-03-14014 March 2008
Draft Regulatory Guide for Comment
ML0807304562008-03-13013 March 2008
Cy 2007 Baseline Inspection Completion
ML0804503232008-03-0303 March 2008
Summary of Third Conference Call Held with Pressurized-Water Reactor Licensees on Status of NRC Review of License Amendment Requests for Steam Generator Tube Inspections
ML0807300242008-02-22022 February 2008
Status Report and Proposed Agenda for the ACRS Subcommittee on March 5, 2008 Related to the License Renewal Application of Wolf Creek Generating Stations Unit 1
ML0804504682008-02-19019 February 2008
Federal Register Notice Regarding the Meeting of the ACRS Subcommittee on Wolf Creek Plant License Renewal Application, March 5, 2008
ML0803603712008-02-0707 February 2008
Advisory Sub-Committee on Reactor Safeguards Review of the Wolf Creek Generating Station, License Renewal Application - Safety Evaluation Report with Open Items
ML0800901542008-01-22022 January 2008
Summary of Conference Call Held with PWR Licensees on the Temporary License Amendment Needed for Steam Generator Tube Inspections in Spring 2008 Refueling Outages
ML0733103642007-11-27027 November 2007
Revised Notice of Meeting with Wolf Creek Nuclear Operating Corp, to Discuss NRC Staff'S Request for Information on Licensee'S Supplemental Letter Dated September 27, 2007, to the Application Dated February 21, 2006, to Revise TS 5.5.9
ML0733101982007-11-27027 November 2007
Notice of Meeting with Wolf Creek Nuclear Operating Corporation, to Discuss NRC Staff'S Request for Additional Information on Licensee'S Proposed Main Steam and Feedwater Isolation System Modification in Its Application Dated March 14, 2007
ML0732500032007-11-21021 November 2007
Memo to Thomas G. Hiltz Key Issues for Discussion for November 28, 2007 Meeting on Steam Generator Tube Inspection License Amendment (Tac MD0197)
ML0730901272007-11-0808 November 2007
Notice of Meeting with Wolf Creek Nuclear Operating Corporation to Discuss NRC Staff'S Request for Additional Information on Licensee'S Supplemental Letter to Letter Dated September 27, 2007, to Application Dated February 21, 2006
ML0727000542007-10-0202 October 2007
Summary of Telephone Conference Call Held on 9/26/07, Between the U.S. NRC and Wolf Creek Nuclear Operating Corporation, Concerning Draft Requests for Additional Information Pertaining to the Wolf Creek Generating Station, Unit 1, LRA
2023-07-05
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Text
April 26, 2007 MEMORANDUM TO: William J. Shack, Acting Chair Materials, Metallurgy, and Reactor Fuels Subcommittee FROM: Charles G. Hammer, Senior Staff Engineer /RA/
SUBJECT:
ANALYSIS OF EDO RESPONSE TO ACRS LETTER ON PROPOSED NRC STAFF AND INDUSTRY ACTIVITIES FOR ADDRESSING DISSIMILAR METAL WELD ISSUES RESULTING FROM THE WOLF CREEK PRESSURIZER WELD INSPECTION RESULTS Attached is a copy of the EDOs April 23, 2007 letter of response to the ACRS March 22, 2007 letter on the proposed NRC staff and industry activities for addressing dissimilar metal weld issues resulting from the Wolf Creek pressurizer weld inspection results. A copy of the Committees letter is also attached.
Committee Letter In its March 22, 2007 letter the ACRS supported the agreement reached between the staff and the industry on the resolution of dissimilar metal weld issues on pressurizer nozzles. The ACRS letter also stated that in the upcoming outages, the staff should encourage the industry to inspect all inspectable dissimilar metal welds on pressurizer nozzles before performing mitigation activities.
EDO Response The EDO response stated that the advanced finite element analysis efforts being performed by both the industry and staff are ongoing. The staff anticipates reaching conclusions by August 2007 on whether these efforts would provide reasonable assurance of detectable leakage well before rupture. The staff committed to keep the Committee informed of this issue as these analyses proceed.
The EDO response also stated that there are a small number of plants that are inspecting the pressurizer nozzle welds prior to mitigation activities. The NRC regulations do not require utilities to perform volumetric inspections prior to mitigation. However, the staff recognizes the value of inspecting these welds and have consistently encouraged utilities to perform pre-mitigation inspections where it is permitted.
Analysis The EDOs response is satisfactory.
Attachments: As stated cc: ACRS Members F. Gillespie S. Duraiswamy C. Santos
