Letter Sequence Response to RAI |
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Results
Other: ML070810264, NOC-AE-06002076, Examination Results of a Pressurizer Nozzle Safe-End Weld Overlay (RR-ENG-2-43), NOC-AE-06002085, Summary Assessment of Pressurizer Surge Line Weld Overlay; Shrinkage and Fatigue Crack Growth (RR-ENG-2-43) (TAC Nos. MD1414-1423), NOC-AE-07002161, Weld Overlay Examination Results (RR-ENG-2-43), NOC-AE-07002168, Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43), NOC-AE-08002297, Unit 1 Weld Overlay Examination Results (RR-ENG-2-43) (TAC MD1414-1423), NOC-AE-08002323, Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43)
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MONTHYEARNOC-AE-06002000, Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43)2006-05-0101 May 2006 Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43) Project stage: Request NOC-AE-06002055, Response to NRC Request for Additional Information on Proposed Alternative to ASME Section XI Requirements for Application of Weld Overlay (RR-ENG-2-43)2006-08-22022 August 2006 Response to NRC Request for Additional Information on Proposed Alternative to ASME Section XI Requirements for Application of Weld Overlay (RR-ENG-2-43) Project stage: Response to RAI NOC-AE-06002066, Commitment in Support of Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43)2006-09-19019 September 2006 Commitment in Support of Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43) Project stage: Request NOC-AE-06002068, Response to Request for Additional Information: Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43)2006-09-28028 September 2006 Response to Request for Additional Information: Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43) Project stage: Response to RAI NOC-AE-06002076, Examination Results of a Pressurizer Nozzle Safe-End Weld Overlay (RR-ENG-2-43)2006-11-0101 November 2006 Examination Results of a Pressurizer Nozzle Safe-End Weld Overlay (RR-ENG-2-43) Project stage: Other NOC-AE-06002085, Summary Assessment of Pressurizer Surge Line Weld Overlay; Shrinkage and Fatigue Crack Growth (RR-ENG-2-43) (TAC Nos. MD1414-1423)2006-11-29029 November 2006 Summary Assessment of Pressurizer Surge Line Weld Overlay; Shrinkage and Fatigue Crack Growth (RR-ENG-2-43) (TAC Nos. MD1414-1423) Project stage: Other ML0708102642007-04-0202 April 2007 Relief, Request for Relief No. RR-ENG-2-43 for Remainder of Second 10-year Inservice Inspection Interval Application of Weld Overlays in Pressurizer Nozzle Safe End Welds (TAC Nos. MD1414 - MD1423) Project stage: Other NOC-AE-07002161, Weld Overlay Examination Results (RR-ENG-2-43)2007-05-0101 May 2007 Weld Overlay Examination Results (RR-ENG-2-43) Project stage: Other NOC-AE-07002168, Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43)2007-05-29029 May 2007 Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43) Project stage: Other NOC-AE-08002297, Unit 1 Weld Overlay Examination Results (RR-ENG-2-43) (TAC MD1414-1423)2008-04-29029 April 2008 Unit 1 Weld Overlay Examination Results (RR-ENG-2-43) (TAC MD1414-1423) Project stage: Other NOC-AE-08002323, Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43)2008-06-18018 June 2008 Summary Assessment of Pressurizer Nozzle Safe End Weld Overlays: Shrinkage and Fatigue Crack Growth (RR-ENG-2-43) Project stage: Other 2006-09-28
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Category:Letter
MONTHYEARML24029A2752024-01-29029 January 2024 Request to Reschedule Evaluated Force-on-Force Drill IR 05000498/20230042024-01-29029 January 2024 Integrated Inspection Report 05000498/2023004 and 05000499/2023004 ML24024A1162024-01-24024 January 2024 STP Unit 2 Request for Information IR 05000498/20244042024-01-18018 January 2024 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000498/2024404; 05000499/2024404 IR 05000498/20230032023-12-28028 December 2023 Acknowledgment of Reply to a Notice of Violation (NRC Inspection Report 05000498/2023003 and 05000499/2023003) ML23360A1692023-12-26026 December 2023 FEMA, Submittal of Radiological Emergency Preparedness Final Report for the South Texas Project Medical Services Drill Evaluated on August 31, 2023 NOC-AE-230040, Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06)2023-12-14014 December 2023 Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06) NOC-AE-230039, Docket Nos. Stn 50-498, Stn 50-499 - Reply to a Notice of Violation, NRC Inspection Report 05000498/2023003 and 05000499/20230032023-12-12012 December 2023 Docket Nos. Stn 50-498, Stn 50-499 - Reply to a Notice of Violation, NRC Inspection Report 05000498/2023003 and 05000499/2023003 ML23326A2592023-12-0505 December 2023 Review of the Fall 2022 Steam Generator Tube Inspection Report ML23339A1902023-12-0505 December 2023 Update Foreign Ownership, Control, or Influence (FOCI) IR 05000498/20234012023-12-0404 December 2023 Security Baseline Inspection Report 05000498/2023401 and 05000499/2023401 ML23324A0102023-11-16016 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23310A2282023-11-13013 November 2023 Integrated Inspection Report 05000498/2023003 and 05000499/2023003, and Notice of Violation ML23311A2082023-11-0909 November 2023 Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV ML23298A0002023-11-0101 November 2023 the Associated Independent Spent Fuel Storage Installation - Issuance of Amendment Nos. 226 and 211 Related to Order Approving Indirect Transfer of Licenses and Conforming License Amendments ML23303A0782023-10-30030 October 2023 Submittal of Supplemental Information in Response to Order Consenting to License Transfers and Approval of Draft Conforming License Amendments ML23279A0342023-10-30030 October 2023 Associated Independent Spent Fuel Storage Installation - Order Approving Indirect Transfer of Licenses and Draft Conforming License Amendments (EPID L-2023-LLM-0004) (Letter) IR 05000498/20234032023-10-26026 October 2023 Material Control and Accounting Program Inspection Report 05000498/2023403 and 05000499/2023403 (Cover Letter) ML23317A1262023-10-12012 October 2023 South. Texas Project Physical Security Plan, Training and Qualification Plan, Safeguards Contingency Plan, and Independent Spent Fuel Storage Installation Security Program Revision 26 ML23279A1382023-10-0505 October 2023 Responses to Requests for Additional Information Related to Application for Order Approving Indirect Transfer of Control of Licenses ML23271A1942023-10-0303 October 2023 Notification of Commercial Grade Dedication Inspection (05000498/2024013 and 05000499/2024013) and Request for Information ML23270B2592023-09-27027 September 2023 Update Foreign Ownership, Control, or Influence ML23263B1132023-09-20020 September 2023 Operator Licensing Examination Schedule Revision 1 IR 05000498/20243012023-09-0707 September 2023 Notification of NRC Initial Operator Licensing Examination 05000498/2024301; 05000499/2024301 IR 05000498/20233012023-09-0101 September 2023 NRC Examination Report 05000498/2023301 and 05000499/2023301 ML23243B0562023-08-31031 August 2023 Supplemental Information to Application for Order Approving Indirect Transfer of Control of Licenses ML23236A6042023-08-24024 August 2023 Annual Dose Report for 2022 IR 05000498/20230052023-08-22022 August 2023 Updated Inspection Plan for South Texas Project Electric Generating Station, Units 1 and 2 (Report 05000498/2023005 and 05000499/2023005) - Mid Cycle Letter ML23229A5262023-08-17017 August 2023 Inservice Inspection Summary Report - 1 RE24, ML23229A5892023-08-17017 August 2023 Voluntary Response to Regulatory Issue Summary (RIS) 2023-02, Scheduling Information for the Licensing of Accident Tolerant, Increased Enrichment, and Higher Burnup Fuels ML23229A4992023-08-17017 August 2023 Supplement to Proposed Alternate Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection (Relief Request RR-ENG-4-06) ML23228A2102023-08-15015 August 2023 Closure of Investigation (OI 4-22-19) ML23222A0322023-08-10010 August 2023 Report of Changes Made to Quality Assurance Program for Radioactive Material Packages ML23221A3002023-08-0909 August 2023 RE22 Inspection Summary Report for Steam Generator Tubinq, Rev. 1 (Epld L-2023-LRO-0029) ML23222A2792023-08-0909 August 2023 Submittal of Update Foreign Ownership, Control, or Influence (FOCI) IR 05000498/20230022023-07-28028 July 2023 Integrated Inspection Report 05000498/2023002 and 05000499/2023002 ML23198A0532023-07-24024 July 2023 Request for Withholding Information from Public Disclosure ML23188A1612023-07-14014 July 2023 the Associated ISFSI - Notice of Consideration of Approval of Indirect Transfer of Licenses and Conforming Amendments and Opportunity to Request a Hearing (EPID L-2023-LLM-0004) - Letter ML23193A9932023-07-11011 July 2023 Submittal of Update Foreign Ownership, Control or Influence (FOCI) ML23192A0482023-07-11011 July 2023 NRC Initial Operator Licensing Examination Approval 05000498/2023301; 05000499/2023301 NOC-AE-230039, Submittal of Update Foreign Ownership, Control or Influence (FOCI)2023-07-11011 July 2023 Submittal of Update Foreign Ownership, Control or Influence (FOCI) ML23180A2822023-06-29029 June 2023 Operator Licensing Examination Schedule ML23177A2522023-06-26026 June 2023 Units 1, 2 & Independent Spent Fuel Storage Installation - Biennial Submittal of Technical Specification Bases Changes, Commitment Changes, 10 CFR 50.59 Evaluation Summary, and 10 CFR 72.48 Evaluation Summary ML23166B0802023-06-14014 June 2023 Update Foreign Ownership, Control, or Influence (FOCI) ML23163A1762023-06-12012 June 2023 Application for Order Approving Indirect Transfer of Control of Licenses 2024-01-29
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Text
Nuclear Operating Company South Tewa ftled Ekduic Geneatin SWaIon PO Bo 289 Mtdslvrth, Tcs 7748) 3 -------------------------
v~-----September 28, 2006 NOC-AE-06002068 File No.: G25 10 CER 50.55a U. S. Nuclear Regulatory Commission Attention:
Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 South Texas Project Units 1 and 2 Docket No. STN 50-498, STN 50-499 Response to Request for Additional Information:
Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43) (TAC Nos. MD1 414-1423)
References:
(1) Letter dated May 1, 2006, from M. J. Berg, STPNOC, to NRC Document Control Desk, "Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43)," (NOC-AE-06002000)
(2) Letter dated August 22, 2006, from M. J. Berg, STPNOC, to NRC Document Control Desk, "Response to Request for Additional Information on Proposed Alternative to ASME Section Xl Requirements for Application of a Weld Overlay (RR-ENG-2-43) (TAC Nos. MD141 4-1 423)," (NOC-AE-06002055)" (3) Letter dated September 19, 2006, from David W. Rencurrel, STPNOC, to NRC Document Control Desk, "Commitment in Support of Proposed Alternative to ASME Section XI Requirements for Application of a Weld Overlay (RR-ENG-2-43) (TAO Nos. MD141 4-1 423)," (NOC-AE-06002066)
STP Nuclear Operating Company (STPNOC) provides the attached responses to NRC questions regarding requested alternatives to the requirements of the American Society of Mechanical Engineers (ASME) Code,Section XI for installation and examination of full structural weld overlays for dissimilar metal and safe end-to-piping stainless steel (SS) butt welds.Reference 1 is the initial request for relief, and reference 2 is the response to the first set of NRC questions.
Reference 2 includes commitments to perform flaw evaluations and shrinkage stress effects analyses and to submit a final evaluation report. Reference 3 provides a commitment to provide inspection results following completion of the weld overlays.
To provide clarification of actions to be taken by STPNOC, these previously stated commitments are re-issued with appropriate rewording to address the NRC request for additional information (RAI)received September 21, 2006.STPNOC will complete stress analysis summaries of the pre-emptive weld overlay prior to restart of Unit 1 and will provide the summaries to the NRC within four weeks after restart from the Unit 1 (Fall 2006) refueling outage. Similarly, stress analysis summaries will be completed prior to the restart of Unit 2 and provided to the NRC within four weeks after restart from the Unit 2 (Spring 2007) refueling outage. This commitment supports the response to RAI #2.STI: 32060797 ID L NOC-AE-06002068 Page 2 of 3 For each unit, STPNOC will provide the weld overlay ultrasonic examination results to the NRC.Included in the results will be a discussion of any repairs to the overlay material and/or base metal and the reason for the repair. The results will be submitted within 14 days after completion of the last ultrasonic examination of the weld overlays for each unit. This commitment addresses RAI #2.Data provided in the report will include disposition of indications using ASME Section Xl standards.
Subsequent inservice examination of the structural weld overlays will be in accordance with ASME Section XI, Appendix Q, Q-4300. This commitment addresses RAI #1.The restated commitments are listed in the attachments.
To support activities to be performed in the Unit 1 Fall 2006 refueling outage, NRC approval of the subject relief request is requested by October 2, 2006.If you have any questions, please contact either Mr. P. L. Walker at (361) 972-8392 or me at (361) 972-7867.David W. Rencurrel Vice President Engineer ga& Strategic Projects PLW
Attachment:
List of Commitments NOC-AE-06002068 Page 3 of 3 cc: (paper copy)(electronic copy)Regional Administrator, Region IV U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Richard A. Ratliff Bureau of Radiation Control Texas Department of State Health Services 1100 West 49th Street Austin, TX 78756-3189 Senior Resident Inspector U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MN1 16 Wadsworth, TX 77483 C. M. Canady City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 A. H. Gutterman, Esquire Morgan, Lewis & Bockius LLP Mohan C. Thadani U. S. Nuclear Regulatory Commission Steve Winn Christine Jacobs Eddy Daniels NRG South Texas LP C. Kirksey City of Austin J. J. Nesrsta.R. K. Temple E. Alarcon City Public Service Jon C. Wood Cox Smith Matthews Attachment NOC-AE-06002068 Page 1 of 1 LIST OF COMMITMENTS The following table identifies the actions in this document to which the STP Nuclear Operating Company (STPNOC) has committed.
Statements in this submittal with the exception of those in the table below are provided for information purposes and are not considered commitments.
Please direct questions regarding these commitments to Philip Walker at (361) 972-8392.Commitment Expected CR Action Completion Dates Nos.STPNOC will complete stress analysis summaries of the pre- 11/28/2006 (Unit 1) 05-15744-42 emptive weld overlay prior to restart of Unit 1 and provide the052/07(nt)0514-4 summaries to the NRC within four weeks after restart from the052/07(nt)0-14-4 Unit 1 (Fall 2006) refueling outage.Similarly, stress analysis summaries will be completed prior to the restart of Unit 2 and provided to the NRC within four weeks after restart from the Unit 2 (Spring 2007) refueling outage.For each unit, STPNOC will provide the pre-emptive weld 11/07/2006 (Unit 1) 05-15744-43 overlay ultrasonic examination results to the NRC within 14 05/07/2007 (Unit 2) 05-15744-45 days after completion of UT examination of the weld overlays.
The results will include: " A list of indications detected.1" The disposition of all indications using the standards of ASME Section Xl, IWB-3514-2 and/or IWB-3514-3 criteria, and" The type and nature of the indications, if possible.2 Included in the results will be a discussion of any repairs to the overlay material and/or base metal and the reason for the repair.Subsequent inservice examination of the structural weld overlays will be in accordance with ASME Section Xl, Appendix Q, 0-4300.1 .The recording criteria of the ultrasonic examination procedure to be used for the examination weld overlays (PDI-UT-8, Revision F) require that all indications, regardless of amplitude, be investigated to the extent necessary to provide accurate characterization, identity, and location.
Additionally the procedure requires that all indications, regardless of amplitude, that cannot be clearly attributed to the geometry of the overlay configuration be considered flaw indications.
- 2. Ultrasonic examination procedure PDI-UT-8, Revision F, requires that all suspected flaw indications be plotted on a cross-sectional drawing of the weld and that the plots should accurately identify the specific origin of the reflector.