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| | number = ML13022A088 | | | number = ML13022A088 |
| | issue date = 01/16/2013 | | | issue date = 01/16/2013 |
| | title = San Onofre, Unit 2, Response to Request for Additional Information (RAI 19) Regarding Confirmatory Action Letter Response (TAC No. Me 9727) | | | title = Response to Request for Additional Information (RAI 19) Regarding Confirmatory Action Letter Response (TAC No. Me 9727) |
| | author name = St.Onge R J | | | author name = St.Onge R |
| | author affiliation = Southern California Edison Co | | | author affiliation = Southern California Edison Co |
| | addressee name = | | | addressee name = |
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| {{#Wiki_filter:\\V SOUTHERN CALIFORNIAEDISONAn EDISON INTERNATIONAL CompanyRichard J. St. OngeDirector, Nuclear Regulatory Affairs andEmergency PlanningJanuary 16, 201310 CFR 50.4U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, DC 20555-0001Subject:Docket No. 50-361Response to Request for Additional Information (RAI 19)Regarding Confirmatory Action Letter Response(TAC No. ME 9727)San Onofre Nuclear Generating Station, Unit 2References:1. Letter from Mr. Elmo E. Collins (USNRC) to Mr. Peter T. Dietrich (SCE), datedMarch 27, 2012, Confirmatory Action Letter 4-12-001, San Onofre NuclearGenerating Station, Units 2 and 3, Commitments to Address Steam GeneratorTube Degradation2. Letter from Mr. Peter T. Dietrich (SCE) to Mr. Elmo E. Collins (USNRC), datedOctober 3, 2012, Confirmatory Action Letter -Actions to Address SteamGenerator Tube Degradation, San Onofre Nuclear Generating Station, Unit 23. Letter from Mr. James R. Hall (USNRC) to Mr. Peter T. Dietrich (SCE), datedDecember 26, 2012, Request for Additional Information Regarding Responseto Confirmatory Action Letter, San Onofre Nuclear Generating Station, Unit 2Dear Sir or Madam,On March 27, 2012, the Nuclear Regulatory Commission (NRC) issued a Confirmatory ActionLetter (CAL) (Reference 1) to Southern California Edison (SCE) describing actions that the NRCand SCE agreed would be completed to address issues identified in the steam generator tubesof San Onofre Nuclear Generating Station (SONGS) Units 2 and 3. In a letter to the NRC datedOctober 3, 2012 (Reference 2), SCE reported completion of the Unit 2 CAL actions andincluded a Return to Service Report (RTSR) that provided details of their completion.By letter dated December 26, 2012 (Reference 3), the NRC issued Requests for AdditionalInformation (RAIs) regarding the CAL response. Enclosure 1 of this letter provides theresponse to RAI 19.P.O. Box 128San Clemente, CA 92672 Document Control Desk-2-January 16, 2013There are no new regulatory commitments contained in this letter. If you have any questions orrequire additional information, please call me at (949) 368-6240.Sincerely,Enclosures:1. Response to RAI 19cc: E. E. Collins, Regional Administrator, NRC Region IVJ. R. Hall, NRC Project Manager, SONGS Units 2 and 3G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3R. E. Lantz, Branch Chief, Division of Reactor Projects, NRC Region IV ENCLOSURE 1SOUTHERN CALIFORNIA EDISONRESPONSE TO REQUEST FOR ADDITIONAL INFORMATIONREGARDING RESPONSE TO CONFIRMATORY ACTION LETTERDOCKET NO. 50-361TAC NO. ME 9727Response to RAI 19Page 1 RAI 19Reference 1, Section 11.2, page 52 -Provide additional details on how the GE Smart SignalSystem will be used in the context of tube-to-tube wear and/or the circumstances associatedwith tube-to-tube wear. What information/data will the system be evaluating? For whatpurpose?RESPONSEAs stated in the RAI Reference 1, Section 11.2, GE Smart SignalTM will be used as "an analytictool that aids in diagnosis of equipment conditions. The tool will be used to analyze historicalplant process data from the Unit 2 steam generators (SGs) following the inspection interval."GE Smart SignalTM will be used as a backward looking tool to assist in the investigation of anyadditional tube-to-tube wear identified during the mid-cycle inspection. GE Smart SignalTM isnot included as a Defense in Depth measure in section 9 of RAI Reference 1.GE Smart SignalTM is a software program used to trend and monitor variances in plantequipment (such as pressures, temperatures, flowrate, speed, feedwater pump and turbinevibration). GE Smart SignalTM will be monitoring the following equipment:1. Unit 2 Steam Generators2. Unit 2 Main Feedwater Pumps3. Unit 2 Main Feedwater TurbinesPage 2 | | {{#Wiki_filter:\\V SOUTHERN CALIFORNIA Richard J. St. Onge Director, Nuclear Regulatory Affairs and EDISON Emergency Planning An EDISON INTERNATIONAL Company January 16, 2013 10 CFR 50.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 |
| }} | | |
| | ==Subject:== |
| | Docket No. 50-361 Response to Request for Additional Information (RAI 19) |
| | Regarding Confirmatory Action Letter Response (TAC No. ME 9727) |
| | San Onofre Nuclear Generating Station, Unit 2 |
| | |
| | ==References:== |
| | : 1. Letter from Mr. Elmo E. Collins (USNRC) to Mr. Peter T. Dietrich (SCE), dated March 27, 2012, Confirmatory Action Letter 4-12-001, San Onofre Nuclear Generating Station, Units 2 and 3, Commitments to Address Steam Generator Tube Degradation |
| | : 2. Letter from Mr. Peter T. Dietrich (SCE) to Mr. Elmo E. Collins (USNRC), dated October 3, 2012, Confirmatory Action Letter - Actions to Address Steam Generator Tube Degradation, San Onofre Nuclear Generating Station, Unit 2 |
| | : 3. Letter from Mr. James R. Hall (USNRC) to Mr. Peter T. Dietrich (SCE), dated December 26, 2012, Request for Additional Information Regarding Response to Confirmatory Action Letter, San Onofre Nuclear Generating Station, Unit 2 |
| | |
| | ==Dear Sir or Madam,== |
| | |
| | On March 27, 2012, the Nuclear Regulatory Commission (NRC) issued a Confirmatory Action Letter (CAL) (Reference 1) to Southern California Edison (SCE) describing actions that the NRC and SCE agreed would be completed to address issues identified in the steam generator tubes of San Onofre Nuclear Generating Station (SONGS) Units 2 and 3. In a letter to the NRC dated October 3, 2012 (Reference 2), SCE reported completion of the Unit 2 CAL actions and included a Return to Service Report (RTSR) that provided details of their completion. |
| | By letter dated December 26, 2012 (Reference 3), the NRC issued Requests for Additional Information (RAIs) regarding the CAL response. Enclosure 1 of this letter provides the response to RAI 19. |
| | P.O. Box 128 San Clemente, CA 92672 |
| | |
| | Document Control Desk January 16, 2013 There are no new regulatory commitments contained in this letter. If you have any questions or require additional information, please call me at (949) 368-6240. |
| | Sincerely, |
| | |
| | ==Enclosures:== |
| | : 1. Response to RAI 19 cc: E. E. Collins, Regional Administrator, NRC Region IV J. R. Hall, NRC Project Manager, SONGS Units 2 and 3 G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3 R. E. Lantz, Branch Chief, Division of Reactor Projects, NRC Region IV |
| | |
| | ENCLOSURE 1 SOUTHERN CALIFORNIA EDISON RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING RESPONSE TO CONFIRMATORY ACTION LETTER DOCKET NO. 50-361 TAC NO. ME 9727 Response to RAI 19 Page 1 |
| | |
| | ===RAI 19=== |
| | Reference 1, Section 11.2, page 52 - Provide additional details on how the GE Smart Signal System will be used in the context of tube-to-tube wear and/or the circumstances associated with tube-to-tube wear. What information/data will the system be evaluating? For what purpose? |
| | |
| | ===RESPONSE=== |
| | As stated in the RAI Reference 1, Section 11.2, GE Smart Signal TM will be used as "an analytic tool that aids in diagnosis of equipment conditions. The tool will be used to analyze historical plant process data from the Unit 2 steam generators (SGs) following the inspection interval." |
| | GE Smart Signal TM will be used as a backward looking tool to assist in the investigation of any additional tube-to-tube wear identified during the mid-cycle inspection. GE Smart Signal TM is not included as a Defense in Depth measure in section 9 of RAI Reference 1. |
| | GE Smart Signal TM is a software program used to trend and monitor variances in plant equipment (such as pressures, temperatures, flowrate, speed, feedwater pump and turbine vibration). GE Smart Signal TM will be monitoring the following equipment: |
| | : 1. Unit 2 Steam Generators |
| | : 2. Unit 2 Main Feedwater Pumps |
| | : 3. Unit 2 Main Feedwater Turbines Page 2}} |
Letter Sequence Response to RAI |
|---|
|
Initiation
- Request, Request, Request, Request, Request, Request, Request
- Acceptance
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
|
MONTHYEARML12285A2652012-10-0101 October 2012
Attachment 4 - MHI Document L5-04GA564 - Tube Wear of Unit-3 RSG, Technical Evaluation Report
Project stage: Request
ML12285A2672012-10-0101 October 2012
Attachment 4: SG Tube Wear Analysis for Unit-2/3
Project stage: Request
ML12285A2662012-10-0101 October 2012
Attachment 4: Appendix-2 Attachment-1, Tube-to-TSP Wear Depth Diagram for Unit-2/3
Project stage: Request
ML12285A2642012-10-0101 October 2012
Attachment 3 - Areva Document 51-9180143-001 - SONGS Unit 3 February 2012 Leaker Outage Steam Generator Condition Monitoring Report
Project stage: Request
ML12285A2682012-10-0202 October 2012
Attachment 6 - Appendix B: SONGS U2C17 - Steam Generator Operational Assessment for Tube-to-Tube Wear
Project stage: Request
ML12285A2692012-10-0202 October 2012
Attachment 6: Appendix a: Estimates of FEI-Induced Ttw Rates
Project stage: Request
ML12285A2632012-10-0303 October 2012
Confirmatory Action Letter - Actions to Address Steam Generator Tube Degradation
Project stage: Request
ML12338A1102012-11-30030 November 2012
Email, Request for Additional Information Southern California Edison'S Response to Nrc'S Confirmatory Action Letter (CAL) 4-12-001 Dated March 27, 2012
Project stage: RAI
ML12341A1122012-12-0707 December 2012
Notice of Meeting with Southern California Edison to Discuss Its Response to Nrc'S Confirmatory Action Letter and Return to Service Report for San Onofre Nuclear Generating Station, Unit 2
Project stage: Meeting
ML12347A0662012-12-0707 December 2012
Revised Notice of 12/18/12 Meeting with Southern California Edison to Discuss Its Response to Nrc'S Confirmatory Action Letter and Return to Service Report for San Onofre Nuclear Generating Station, Unit 2
Project stage: Meeting
ML12345A4272012-12-10010 December 2012
Revised Email, Request for Additional Information Review of Southern California Edison'S Response to Nrc'S 3/27/2012 Confirmatory Action Letter (CAL) 4-12-001 and Return to Service Report
Project stage: RAI
ML12353A0972012-12-13013 December 2012
LTR-12-0795 - E-mail Don Leichtling Concerns Media Alert - Nuclear News - NRR Forthcoming Meeting with Southern California Edison Company
Project stage: Meeting
ML12352A3852012-12-18018 December 2012
Licensee Slides for 12/18/12 Public Meeting
Project stage: Meeting
ML12352A4112012-12-18018 December 2012
NRC Slides for 12/18/12 Meeting with Southern California Edison
Project stage: Meeting
ML12356A1982012-12-20020 December 2012
Email, Request for Additional Information, Round 3, Review of Southern California Edison'S Response to Nrc'S 3/27/2012 Confirmatory Action Letter (CAL) 4-12-001 and Return to Service Report
Project stage: RAI
ML13009A3492013-01-0808 January 2013
Response to Request for Additional Information Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13014A2512013-01-0909 January 2013
Response to Request for Additional Information (RAI 30) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13014A2492013-01-0909 January 2013
Response to Request for Additional Information (RAI 15) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13015A0042013-01-10010 January 2013
Response to Request for Additional Information (RAI 16), Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13022A0882013-01-16016 January 2013
Response to Request for Additional Information (RAI 19) Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13022A4132013-01-17017 January 2013
Response to Request for Additional Information (RAIs 10 and 17) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13022A4812013-01-18018 January 2013
Response to Request for Additional Information (RAI 13), Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13022A4082013-01-18018 January 2013
Response to Request for Additional Information (RAI 12), Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13022A4112013-01-21021 January 2013
Response to Request for Additional Information (RAI 11) Regarding Confirmatory Action Letter Response (TAC Me 9727)
Project stage: Response to RAI
ML13022A4052013-01-21021 January 2013
Response to Request for Additional Information (RAI 28), Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13028A0982013-01-24024 January 2013
Response to Request for Additional Information (RAI 18) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13028A4752013-01-25025 January 2013
Response to Request for Additional Information (RAI 27) Regarding Confirmatory Action Letter
Project stage: Response to RAI
ML13028A4742013-01-25025 January 2013
Response to Request for Additional Information (RAIs 5, 7, and 9) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13032A0092013-01-29029 January 2013
Response to Request for Additional Information (RAI 14) Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13037A1122013-01-31031 January 2013
Response to Request for Additional Information (RAI 29) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13053A3672013-02-0101 February 2013
E-mail, Draft Request for Additional Information Southern California Edison'S Response to Nrc'S Confirmatory Action Letter
Project stage: Draft RAI
ML13038A0102013-02-0404 February 2013
Response to Request for Additional Information (RAI 8) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13038A0092013-02-0404 February 2013
Response to Request for Additional Information (RAI 6) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13039A2782013-02-0606 February 2013
Response to Request for Additional Information (RAIs 20, 21, 22, 23, 24, 26 & 31), Confirmatory Action Letter
Project stage: Response to RAI
ML13039A3172013-02-0707 February 2013
Response to Request for Additional Information (RAI 25) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13050A1892013-02-14014 February 2013
Supplemental Document Submittal Regarding Confirmatory Action Letter Response, Concerning Steam Generator Tubes
Project stage: Supplement
ML13051A1972013-02-15015 February 2013
Enclosure 6, LTR-SGDA-12-36, Rev. 3, Flow-Induced Vibration and Tube Wear Analysis of the San Onofre Nuclear Generating Station Unit 2 Replacement Steam Generators Supporting Restart. Cover Through Page 227 of 415
Project stage: Other
ML13051A1992013-02-15015 February 2013
Enclosure 6, LTR-SGDA-12-36, Rev. 3, Flow-Induced Vibration and Tube Wear Analysis of the San Onofre Nuclear Generating Station Unit 2 Replacement Steam Generators Supporting Restart. Page 228 of 415 Through End
Project stage: Other
ML13046A1232013-02-15015 February 2013
2/27/2013 Notice of Forthcoming Meeting with Southern California Edison Company to Discuss Confirmation Action Letter
Project stage: Meeting
ML13051A1932013-02-18018 February 2013
Enclosure 5, L5-04GA585, Rev. 2, Analytical Evaluations for Operational Assessment
Project stage: Other
ML13051A1922013-02-18018 February 2013
Enclosure 4, L5-04GA567, Rev. 6, Evaluation of Stability Ratio for Return to Service
Project stage: Other
ML13051A1902013-02-18018 February 2013
Supplemental Document Submittal Regarding Confirmatory Action Letter Response to Address Steam Generator Tube Degradation
Project stage: Supplement
ML13056A0922013-02-20020 February 2013
Email, Draft Request for Additional Information Nos. 38-52, Southern California Edison'S Response to Nrc'S Confirmatory Action Letter
Project stage: Draft RAI
ML13053A1732013-02-21021 February 2013
Email, Draft Request for Additional Information, Nos. 53-67, Southern California Edison'S Response to Nrc'S Confirmatory Action Letter
Project stage: Draft RAI
ML13053A1842013-02-21021 February 2013
Draft Request for Additional Information, Nos. 53-67, Southern California Edison'S Response to Nrc'S Confirmatory Action Letter
Project stage: Draft RAI
ML13058A0262013-02-25025 February 2013
Response to Request for Additional Information (Rals 2, 3, and 4) Regarding Confirmatory Action Letter Response (TAC No. Me 9727)
Project stage: Response to RAI
ML13056A6012013-02-25025 February 2013
Response to Request for Additional Information (RAI 32) Regarding Confirmatory Action Letter Response
Project stage: Response to RAI
ML13059A1572013-02-27027 February 2013
Licensee Slides from 2/27/13 Meeting Regarding a Request for Additional Information
Project stage: Meeting
ML13059A1522013-02-27027 February 2013
NRC Meeting Slides from 2/27/13 Public RAI Meeting
Project stage: RAI
ML13074A7932013-03-14014 March 2013
Operational Assessment for 100% Power Case Regarding Confirmatory Action Letter Response
Project stage: Other
2013-01-25
[Table View] |
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Category:Letter
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ML23123A0932023-04-28028 April 2023
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ML23094A1272023-03-29029 March 2023
Independent Spent Fuel Storage Installation - 10 CFR 50.82(a)(8)(v and VII) and 10 CFR 72.30(c) Decommissioning Funding Status Report 2021
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ML23062A1172023-02-28028 February 2023
Generation Station Units 1, 2 and 3, Annual Radioactive Effluent Release Report for Independent Spent Fuel Storage Installation - 2022
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Reactor Decommissioning Branch Project Management Changes for Some Decommissioning Facilities and Establishment of Backup Project Manager for All Decommissioning Facilities
ML23059A2812023-02-22022 February 2023
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NRC Inspection Report 050-00361/2023-001 and 050-00362/2023-001
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Submittal of Annual Corporate Financial Reports for San Onofre Nuclear Generating Station (SONGS) Units 2 and 3 for Fy Ending June 30, 2022
ML22287A1352023-01-0505 January 2023
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ML22348A0622023-01-0404 January 2023
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NMFS to NRC, Endangered Species Act Section 7(a)(2) Concurrence Letter for Decommissioning of the San Onofre Nuclear Generating Station
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IR 05000361/20220052022-11-17017 November 2022
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ML22277A0162022-09-29029 September 2022
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IR 05000361/20220042022-09-26026 September 2022
NRC Inspection Report 05000361/2022-004 and 05000362/2022-004
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ML22060A1132022-02-24024 February 2022
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2024-01-17
[Table view] |
Text
\\V SOUTHERN CALIFORNIA Richard J. St. Onge Director, Nuclear Regulatory Affairs and EDISON Emergency Planning An EDISON INTERNATIONAL Company January 16, 2013 10 CFR 50.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
Subject:
Docket No. 50-361 Response to Request for Additional Information (RAI 19)
Regarding Confirmatory Action Letter Response (TAC No. ME 9727)
San Onofre Nuclear Generating Station, Unit 2
References:
- 1. Letter from Mr. Elmo E. Collins (USNRC) to Mr. Peter T. Dietrich (SCE), dated March 27, 2012, Confirmatory Action Letter 4-12-001, San Onofre Nuclear Generating Station, Units 2 and 3, Commitments to Address Steam Generator Tube Degradation
- 2. Letter from Mr. Peter T. Dietrich (SCE) to Mr. Elmo E. Collins (USNRC), dated October 3, 2012, Confirmatory Action Letter - Actions to Address Steam Generator Tube Degradation, San Onofre Nuclear Generating Station, Unit 2
- 3. Letter from Mr. James R. Hall (USNRC) to Mr. Peter T. Dietrich (SCE), dated December 26, 2012, Request for Additional Information Regarding Response to Confirmatory Action Letter, San Onofre Nuclear Generating Station, Unit 2
Dear Sir or Madam,
On March 27, 2012, the Nuclear Regulatory Commission (NRC) issued a Confirmatory Action Letter (CAL) (Reference 1) to Southern California Edison (SCE) describing actions that the NRC and SCE agreed would be completed to address issues identified in the steam generator tubes of San Onofre Nuclear Generating Station (SONGS) Units 2 and 3. In a letter to the NRC dated October 3, 2012 (Reference 2), SCE reported completion of the Unit 2 CAL actions and included a Return to Service Report (RTSR) that provided details of their completion.
By letter dated December 26, 2012 (Reference 3), the NRC issued Requests for Additional Information (RAIs) regarding the CAL response. Enclosure 1 of this letter provides the response to RAI 19.
P.O. Box 128 San Clemente, CA 92672
Document Control Desk January 16, 2013 There are no new regulatory commitments contained in this letter. If you have any questions or require additional information, please call me at (949) 368-6240.
Sincerely,
Enclosures:
- 1. Response to RAI 19 cc: E. E. Collins, Regional Administrator, NRC Region IV J. R. Hall, NRC Project Manager, SONGS Units 2 and 3 G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3 R. E. Lantz, Branch Chief, Division of Reactor Projects, NRC Region IV
ENCLOSURE 1 SOUTHERN CALIFORNIA EDISON RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING RESPONSE TO CONFIRMATORY ACTION LETTER DOCKET NO. 50-361 TAC NO. ME 9727 Response to RAI 19 Page 1
RAI 19
Reference 1, Section 11.2, page 52 - Provide additional details on how the GE Smart Signal System will be used in the context of tube-to-tube wear and/or the circumstances associated with tube-to-tube wear. What information/data will the system be evaluating? For what purpose?
RESPONSE
As stated in the RAI Reference 1, Section 11.2, GE Smart Signal TM will be used as "an analytic tool that aids in diagnosis of equipment conditions. The tool will be used to analyze historical plant process data from the Unit 2 steam generators (SGs) following the inspection interval."
GE Smart Signal TM will be used as a backward looking tool to assist in the investigation of any additional tube-to-tube wear identified during the mid-cycle inspection. GE Smart Signal TM is not included as a Defense in Depth measure in section 9 of RAI Reference 1.
GE Smart Signal TM is a software program used to trend and monitor variances in plant equipment (such as pressures, temperatures, flowrate, speed, feedwater pump and turbine vibration). GE Smart Signal TM will be monitoring the following equipment:
- 1. Unit 2 Steam Generators
- 2. Unit 2 Main Feedwater Pumps
- 3. Unit 2 Main Feedwater Turbines Page 2
