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Category:Memoranda
MONTHYEARML23156A2822023-06-0505 June 2023
Summary of Meeting with Q & a Session to Discuss the 2022 Annual Assessment of Safety Performance at CGS
ML22349A2002022-12-0101 December 2022
NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2022 Priority Pollutant Discharge Monitoring Report
ML22147A0932022-06-0606 June 2022
2021 Annual Assessment Public Meeting Summary
ML22034A3932022-02-16016 February 2022
Calendar Year 2021 Security Baseline Completion Memo
ML21140A3892021-05-24024 May 2021
Riv Column 1 EOC 2020 Public Meeting Summary
ML20322A0362020-11-19019 November 2020
Summary of October 19, 2020, Presubmittal Teleconference with Energy Northwest Regarding Proposed COVID-19 Related Biennial Emergency Preparedness Exercise Exemption Request for Columbia Generating Station
ML19053A2922019-02-20020 February 2019
Memorandum to File from P. Longmire Decommissioning Funding Plans for Columbia Generating Station
ML15191A2892018-10-17017 October 2018
Response to Task Interface Agreement 2014-08 - Columbia Generating Station - Assessment of the Design and Licensing Bases for the Tower Makeup System (CAC No. MF4630; EPID L-2014-LRA-0002)
ML18173A0082018-06-20020 June 2018
Cancelling Numerous Inspection Report Numbers
ML16117A5552017-11-0303 November 2017
Response to Task Interface Agreement 2014-07, Columbia Generating Station Design and Licensing Basis for Containment Nitrogen Inerting System and Emergency Diesel Generator Fresh Air Intakes
ML17037B8502017-02-0606 February 2017
08/21/1975 Notice of Meeting with Architect Engineers of Mark II Owners to Discuss Load Combinations and Analytical Techniques for Determining Stresses in Mechanical Components and Structures of Mark II Containments
ML16230A2512016-08-0404 August 2016
Energy Northwest - Response to Volume 13- Emergency Preparedness Procedures
ML16132A5122016-05-16016 May 2016
Notice Of Closed Meeting With USACE, NRC And Energy Northwest To Discuss Flood Analysis Associated With Columbia Generating Station
ML16088A2052016-03-28028 March 2016
Enclosure 1 - (72.30 DFP Reviews to Be Completed 2015) - Memo T Bowers from s Ruffin, Technial Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations
ML16088A2042016-03-28028 March 2016
Memo T Bowers from s Ruffin, Technical Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations W/ Encl 2 (Template)
ML15173A2732015-06-30030 June 2015
Summary of June 4, 2015, Category 1 Public Meeting with Energy Northwest to Discussion Columbia Generating Station Seismic Hazard Reevaluation Associated with Implementation of Japan Lessons-Learned Near-Term Task Force Recommendation 2.1,
ML14149A1012014-06-0202 June 2014
Notice of Forthcoming Closed Meeting to Discuss Dam Failure Analysis for Columbia Generating Station
ML14148A3392014-05-30030 May 2014
G20130776/LTR-13-0866 - Memorandum to File and Transcript of 4/30/2014 Petition Review Board Conference Call with Charles Johnson, Oregon & Washington Physicians for Social Responsibility; 2.206 Petition Seismic Hazards at Columbia
ML14050A3502014-02-25025 February 2014
G20130776/LTR-13-0866 - Memorandum to File and Transcript of 2/4/2014 Petition Review Board Conference Call with Charles Johnson, Oregon & Washington Physicians for Social Responsibility; 2.206 Petition Seismic Hazards at Columbia
ML14087A1642013-12-12012 December 2013
Cooling Water Intake Screen NMFS Consultation No. (I/NWR/2011/05286)
ML14091A2182013-12-12012 December 2013
Cooling Water Intake Screen NMFS Consultation No. (I/NWR/2011/05286)
ML13309A0802013-12-11011 December 2013
Memorandum to File: Transcript for 10 CFR 2.206 Petition from Beyond Nuclear (Et Al) Regarding General Electric Mark I and Mark II Boiling-Water Reactors
ML13098A0642013-04-10010 April 2013
Memorandum to File, Verbal Authorization on 4/6/2013 of Relief Request ISI3-13, Temporary Non-Code Repair of Reactor Water Cleanup System Piping to Prevent Reactor Shutdown Until Start of Refueling Outage 21
ML13071A4702013-02-28028 February 2013
Response to NRC Order EA-12-051-Overall Integrated Plan for Reliable Spent Fuel Pool Instrumentation
ML12278A1212012-10-0404 October 2012
Notice of Pre-licensing Meeting to Discuss Future License Amendment Request to Address Impacts of Remediation Activities Undertaken by Department of Energy in the Owner-Controlled Area at Columbia Generating Station
ML12102A2382012-06-13013 June 2012
Memo Conclusion of Informal Section 7 Consultation with U.S. Fish and Wildlife Service for Columbia Generating Station and Section 7 Consultation Report
ML12157A2722012-06-11011 June 2012
5/31/2012 Summary of Telephone Conference with Licensees Regarding Near Term Task Force Recommendation 2.1 Seismic Reevaluations - Diablo Canyon, 1 and 2, San Onofre, Units 2 and 3, Columbia Generating Station, and Palo Verde, Units 1, 2, a
ML13255A1152012-05-18018 May 2012
E-mail from B. Balsam, NRR to S. Uttal, OGC FW: Section 7 Memo
ML13255A1132012-05-18018 May 2012
Memo from J. Susco, NRR to B. Holian, NRR and M. Galloway, NRR on Section 7 Consultants That Extend Beyond the Nrc'S Issuance of Renewed Operating License and ESA Section 7(D) Findings
ML13255A1122012-05-17017 May 2012
Email from B. Balsam, NRR to L. Subin, OGC Et Al., on Section 7 Memo
ML12101A3952012-05-0404 May 2012
Conclusion of Efh Consultation for Columbia Generating Station and Efh Consultation Report
ML12058A4962012-02-27027 February 2012
License Renewal Application
ML11350A0562011-12-21021 December 2011
12/15/11, Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue and Operating Experience Open Items in the Columbia License Renewal Safety Evaluation Repo
ML11348A0142011-12-16016 December 2011
Summary of Telephone Conference Call Held on 12/06/11, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue and Operating Experience Open Items in the Columbia License Renewal SER with Open Items
ML11336A1502011-12-12012 December 2011
Summary of Telephone Conference Call Held on November 14, 2011, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Metal Fatigue Open Item in the Columbia License Renewal Safety Evaluation Report with Open I
ML11339A0872011-12-12012 December 2011
Summary of Telephone Conference Call Held on November 28, 2011, Between the U.S. Nuclear Regulatory Commission and Energy Northwest, Concerning the Upper Shelf Energy Open Item in the Columbia License Renewal Safety Evaluation Report with O
ML11291A0792011-11-0101 November 2011
09/27/2011 Summary of Public Meetings Conducted to Discuss the Dseis Related to the Review of the Columbia Generating Station License Renewal Application (Tac No. ME3121)
ML11273A0662011-10-0404 October 2011
Summary of the Telephone Conference Call Held on September 29, 2011, Concerning the Inspection Report Pertaining to the Columbia Generating Station, License Renewal Application
ML11238A1582011-09-14014 September 2011
8/25/11 - Summary of Telephone Conference Call Between NRC and Energy Northwest Concerning Drais Pertaining to the SAMA Review of the Columbia Generating Station License Renewal Application
ML11238A1202011-09-0707 September 2011
Notice of Forthcoming Meeting to Discuss the D-SEIS for the Lr of Columbia Generating Station
ML11242A0942011-08-30030 August 2011
Advisory Committee on Reactor Safeguards Review of the Columbia Generating Station, License Renewal Application - Safety Evaluation Report with Open Items
ML1117305512011-06-21021 June 2011
Notice of Forthcoming Pre-Licensing Meeting with Energy Northwest to Discuss Proposed Power Range Neutron Monitoring System/Arts/Mellla License Amendment Request for Columbia Generating Station
ML1108714952011-04-0505 April 2011
Summary of Telephone Conference Call Held on March 23, 2011, Between NRC and Energy Northwest, Concerning the RAI Pertaining to the Columbia Generating Station, LRA (Tac No. ME3058)
ML1106704962011-03-28028 March 2011
Summary of Telephone Conference Call Held on 2/28/11 Btw the USNRC and Energy Northwest Concerning Draft Requests for Additional Information Pertaining to the SAMA Review of the Columbia Generating Station License Renewal Application
ML1102007102011-02-0303 February 2011
01/11/11 Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Energy Northwest Concerning the Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Applicat
ML1101405882011-01-31031 January 2011
01/12/11 Summary of Telephone Conference Call Held Between NRC and Energy Northwest, Concerning the Responses to RAI Pertaining to the Columbia Generating Station. License Renewal Application
ML1100604382011-01-13013 January 2011
Summary of Telephone Conference Call Held on 1/5/11, Between NRC and Energy Northwesy, Concerning the RAI Pertaining to the Columbia Generating Station License Renewal Application (Tac No. ME3058)
ML1100500182011-01-0606 January 2011
Summary of Telephone Conference Call Held on January 3, 2011, Between the NRC and Energy Northwest, Concerning the Request for Additional Information Pertaining to the Columbia Generating Station, License Renewal Application (TAC Number ME3
ML1034003172010-12-14014 December 2010
Notice of Forthcoming Pre-application Meeting on 1/18/2011 with Energy Northwest to Discuss Proposed Power Range Neutron Monitoring System/Arts/Mellla License Amendment Request
ML1100300742010-12-14014 December 2010
Correction to Forthcoming Pre-Licensing Meeting with Energy Northwest(Tac No. ME5129), to Discuss Proposed Installation of a Digital Power Range Neutron Monitoring System, Average Power Range Monitor/Rod Block Monitor/Technical Specificatio
2023-06-05
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Text
-1 Memorandum To:
ALLEGATION FILE RIV-2005-A-0115 From: Claude E. Johnson, Chief Project Branch A Division Reactor Projects
SUBJECT:
RESULTS OF FOLLOWUP INSPECTION ACTIVITIES OF ALLEGATION RIV-2005-A-0115, CONCERNS 1 THROUGH 6 This memorandum provides supplemental closure information for specific concerns associated with Columbia Generating Station Allegation RIV-2005-A-01 15. On April 27, 2006, NRC Region IV completed a focused inspection at the Columbia Generating Station which included inspection of specific allegation concerns. The purpose of this inspection effort was to independently assess the licensee's response to these concerns that was originally used as the basis for closure of the allegation.
The results of this inspection effort is documented in a separate inspection report (05000397/2006011).
In addition to the allegation concerns specified in the inspection plan, the inspection focused on the station's testing and preventive maintenance programs, the decision making process used by the licensee associated with the service water pump issues, the operability determination process, the corrective action program, and the status of other station components.
Allegation RIV-2005-A-01 15, concerns 1 through 6 were inspected as part the focused inspection effort described above. Of these, all the concerns except concern 2 remained as dispositioned in the original closure memo for this allegation. The inspection confirmed that these concerns were adequately characterized using the licensee's response as a basis.
Allegation RIV-2005-A-01 15, concern 2 was originally partially substantiated. The inspection team determined that this concern was substantiated.
The description below identifies the differences between the original assessment and the inspection team assessment and provides final closure for this specific concern.
With regard to the response provided td'the Governor of the State of WashingtQnl concerning some of the concerns associated with allegation RIV-2005-A-01 15, the results of the focused inspection does not change our overall assessment as specified in this response. No additional communication with~the
- Governors officetis required as a result of this effort.
Inspector Followup to Allegation RIV-2005-A-01 15 Concern 2
Background:
On June 14, 2005, the Columbia Generating Station Service Water Pump A failed due to Intergranular Stress Corrosion Cracking (IGSCC) of the vertical pump shafts at the couplings. The pump was repaired and declared operable. Concerns were raised about the condition of the B service water pump because of its similar design and operating conditions. The B pump was not disassembled to be inspected or repaired due to parts issues and the plant was started up and operated with questions surrounding the ability of this pump to perform its safety function for its mission time. The plant startup following the failure of the A service water pump and the delay in establishing the actual condition of the B service water pump resulted in the concerns listed below.
The licensee's response to the following allegation concern was based upon an investigation conducted by the Nuclear Safety Issues Program (NSIP) Manager who is independent of the Plant Operations organization. In addition, the licensee performed four independent analysis of the issues of concern in the NRC allegations. These included:
- 1. An evaluation of a concern in the Nuclear Safety Issues Program,
- 2. An assessment by the Columbia Corporate Nuclear Safety Review Board (CNSRB),
- 3. A detailed evaluation of the root cause of the SW-P-1A failure, including proposed corrective actions, and
- 4. An operability procedure compliance review concerning the determination fo SW-P-1B operability.
The inspector considered theseactivities to be sufficiently independent of the organizations in question.
On April 27, 2006, the NRC completed an independent inspection of selected concerns associated with this allegation. This was done to supplement the original direction from the Allegation Review Board to refer these concerns to the licensee. The results of this inspection effort were generally consistent with the original assessment of the concerns as described in the memorandum used to close this allegation.
However, there was one concern that was characterized differently from the original assessment based upon the inspection results. This concern was reassessed as follows:
Concern 2 -
It was confirmed in conversations with the pump vendor, and an independent vibration consultant that vibration data could not be used to predict failures like those observed in the pump shaft on SW-P-1A. Technical staff could not provide a basis for confidence that SW-P-1B could fulfill its safety function, even though it was currently meeting its Tech Spec surveillance requirements.
Initial Conclusion Based on Licensee Investigation and Response -
The inspector substantiated the first part of this concern. Vibration data alone could not have been used to predict this type of failure. The inspector did not substantiate the second part of this concern because no convincing evidence that the pump was inoperable was provided.
The licensee concluded that vibration data alone could not be used to predict margin to failure but continued vibration monitoring to ensure the ability to continuously assess any pump performance degradation. The licensee's response to this concern stated that the basis for confidence in the ability of
SW-P-1 B to continue to perform its safety function had multiple aspects. Technical Specification and In-Service Testing requirements was one element. Further, the pump was operable prior to the Service Water Pump A failure and continued to operate normally. Also, additional measures were put in place to closely monitor the pump each time it was required to start and run. The final operbility determination is made by the Shift Manager. Five different Shift Mangers over time made consistent determinations that the B pump remained operable. The licensee stated that applicable operability procedures had been followed.
The inspector concurred with this position since no information to the contrary is known.
Revised Conclusion Based on Subsequent Inspection -
The inspection team substantiated this concern.
The inspection team provided the following statement regarding this concern:
Current Energy Northwest vibration analysis techniques can not detect or predict the failure which occurred. However, other sophisticated vibration analysis methodology and monitoring (phase angle or transducer on bowl) may have detected the shaft degradation or impeller rubbing on the pump bowl. Technical staff could not provide a basis for confidence that SW-P-i B could fulfill its safety function in lieu of direct inspection. However, although technical staff could not provide a basis for operability, the same staff could not provide a technical basis for inoperability of the pump.
Technical staff did provide comments to management regarding the need to inspect SW-P-1 B as soon as possible.
The inspector that performed the original assessment of this concern reviewed the inspection team results to determine the specific differences between the two assessments. The inspector determined that the team characterized the issue in much the same way and confirmed that station technical staff could not provide a technical basis for inoperability of the B service water pump. The difference was due primarily in the way the inspection team interpreted the data. No significant additional data was provided during the inspection effort.
The licensee's response to this referred concern was considered adequate.
Based on the focused inspection effort, this concern is substantiated.
