Letter Sequence Request |
---|
|
|
MONTHYEARNL-09-0586, Unit 2, VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii)2009-04-23023 April 2009 Unit 2, VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) Project stage: Request NL-09-1410, VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii)2009-09-0909 September 2009 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) Project stage: Request ML0928802332009-10-19019 October 2009 Supplemental Information Needed for Acceptance of Requested Licensing Action Relief Request VEGP-ISI-ALT-04 Project stage: Acceptance Review NL-09-1739, Supplemental Information Regarding VEGP-ISI-RR-01, Version 1.0 (Unit 2), Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) and VEGP-ISI-ALT-04, Version 2, Alternative in Accordance with 10 CFR 50.55a(a)(3)(i)2009-10-26026 October 2009 Supplemental Information Regarding VEGP-ISI-RR-01, Version 1.0 (Unit 2), Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) and VEGP-ISI-ALT-04, Version 2, Alternative in Accordance with 10 CFR 50.55a(a)(3)(i) Project stage: Supplement NL-10-0335, Request for Additional Information Regarding VEGP-ISI-ALT-04, Version 2, Alternative in Accordance with 10CFR50.55a(a)(3)(i)2010-02-25025 February 2010 Request for Additional Information Regarding VEGP-ISI-ALT-04, Version 2, Alternative in Accordance with 10CFR50.55a(a)(3)(i) Project stage: Request ML1009001292010-06-11011 June 2010 Relief Requests VEGP-ISI-ALT-04 (Units 1 and 2) and VEGP-ISI-RR-01 (Unit 2) Inservice Inspection Alternatives for Third and Subsequent Inservice Inspection Intervals (TAC Nos. ME2226, ME2227, and ME1134) Project stage: Other 2009-04-23
[Table View] |
|
---|
Category:Code Relief or Alternative
MONTHYEARML23150A0802023-05-30030 May 2023 Acceptance Review - Vogtle Units 1 and 2 - Proposed LAR and Relief Request to Revise TS 3.4.14.1 and IST ALT-VR-02 (EPIDs L-2023-LLA-0061 and L-2023-LLR-0023) ML23095A2962023-04-14014 April 2023 Alternative Inspection Requirements for Steam Generator Nozzle to Reactor Coolant Pump Casing Welds (Vegp 3&4-Isi1- Alt-17) ML22259A1822022-09-22022 September 2022 Request for Proposed Inservice Testing Alternative ALT-VR-01 ML22118A0762022-05-13013 May 2022 Cover Letter for Vogtle Electric Generating Plant, Units 3 and 4 Request for Alternative Requirements for Inservice Test Interval Code Edition (VEGP 3&4-IST-ALT-01R2) ML22021A0012022-01-24024 January 2022 Relief Request for Proposed Alternative Requirements for the Repair of Reactor Vessel Head Penetrations for the Fourth 10-Year Inservice Inspection Interval, VEGP-ISI-ALT-04-05, Version 1.0 ML21154A2122021-06-0303 June 2021 Enclosure 1 - Vogtle Electric Generating Plant (VEGP) Unit 3 Proposed Alternative in Accordance with 10 CFR 50.55a(z)(1): Alternative Requirements for ASME Section III Remediation of Containment Vessel Unistrut Welding (VEGP 3-ALT-16) ML21154A2132021-06-0303 June 2021 Enclosure 2 - Vogtle Electric Generating Plant (VEGP) Unit 3 CB&I Procedure Qualification Record 14162(VEGP 3-ALT-16) ND-21-0392, Enclosure 3 - Vogtle Electric Generating Plant (VEGP) Unit 3 CB&I Procedure Qualification Record 14163 (VEGP 3-ALT-16)2021-06-0303 June 2021 Enclosure 3 - Vogtle Electric Generating Plant (VEGP) Unit 3 CB&I Procedure Qualification Record 14163 (VEGP 3-ALT-16) ML21040A1652021-02-0909 February 2021 (Vegp), Units 3 and 4, Revision to Proposed Alternative in Accordance with 10 CFR 50.55a(z)(2): Alternative Requirements for ASME Section XI Examination Coverage of Weldolet Branch Connection Welds ML20352A1552021-01-11011 January 2021 Proposed Relief Request for Alternative VEGP-ISI-ALT-04-04 to the Requirements of the ASME Code ML20307A1412020-11-12012 November 2020 Relief Request for Deferral of ASME Boiler and Pressure Vessel Code, Section XI, Required Summary Report Submittal NL-20-1262, Submission of Proposed Alternative to Submitting Vogtle Unit 2 Inservice Inspection Summary Report within 90 Days of Outage Completion2020-10-30030 October 2020 Submission of Proposed Alternative to Submitting Vogtle Unit 2 Inservice Inspection Summary Report within 90 Days of Outage Completion ML20216A3992020-08-0606 August 2020 Relief Request to Use a Provision of a Later Edition of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, Section XI ML20143A2332020-06-0303 June 2020 Relief Request for Deferral of ASME Boiler and Pressure Vessel Code, Section XI, Required Summary Report Submittal (EPID L-2020-LLR-0074 (COVID-19)) ML20132A1532020-05-14014 May 2020 ASME Code Alternative - May 14, 2020 Presubmittal Technical Exchange for Preservice Inspection (PSI) Alternative ML20034E8942020-02-11011 February 2020 Relief Request Gen-ISI-ALT-2019-01 for Proposed Alternative to Use of ASME Code Case N-831-1, Ultrasonic Examination in Lieu of Radiography for Welds in Ferritic or Austenitic Pipe Section XI, Division 1 ND-20-0083, Revision to Request for Alternative: Alternative Requirements for Inservice Test Interval Code Edition, Unit 4 (VEGP 3&4-IST-ALT-01R1)2020-02-0606 February 2020 Revision to Request for Alternative: Alternative Requirements for Inservice Test Interval Code Edition, Unit 4 (VEGP 3&4-IST-ALT-01R1) ND-19-1294, Request for Alternative: Alternative Requirements for Inservice Test Interval Code Edition, Unit 4 (VEGP 3&4-IST-ALT-01)2019-10-31031 October 2019 Request for Alternative: Alternative Requirements for Inservice Test Interval Code Edition, Unit 4 (VEGP 3&4-IST-ALT-01) ML18320A0192018-11-30030 November 2018 Relief Request Regarding Examination Coverage for Certain ASME Code Class 2 Category Welds (VEGP-ISI-RR-05) ML18296A7172018-10-31031 October 2018 Relief Request Regarding Examination Coverage for Certain Pressurizer and Steam Generator Welds (VEGP-ISI-RR-03) ND-18-1158, Revision to Request for Alternative: Alternative Requirements for Preservice Examination Volumetric Surface Configuration Requirements (VEGP 3&4-PSI/ISI-ALT-10R1)2018-08-30030 August 2018 Revision to Request for Alternative: Alternative Requirements for Preservice Examination Volumetric Surface Configuration Requirements (VEGP 3&4-PSI/ISI-ALT-10R1) NL-18-0428, Withdrawal of Proposed Alternative GEN-ISI-ALT-2017-001 Implementation of Code Case N-786-12018-04-0909 April 2018 Withdrawal of Proposed Alternative GEN-ISI-ALT-2017-001 Implementation of Code Case N-786-1 ML18054A0652018-03-0505 March 2018 Cover Letter - Vogtle Electric Generating Plant - Request for Alternative (ALT-9) ML17171A1022017-06-27027 June 2017 Inservice Inspection Alternative Regarding Category B-N-2 and B-N-3 Welds (VEGP ISI ALT 13) ML17061A2022017-03-17017 March 2017 Request for Alternative RR-PR-03 Regarding Nuclear Service Cooling Water Pump Instrument Accuracy ML17037D0502017-02-17017 February 2017 and 2; Request to Use Asme Code Case OMN-18 as an Alternative to Inservice Testing Requirements (CAC Nos. MF8188 and MF8189) NL-17-0101, Proposed Alternative VEGP-ISI-AL T-13 in Accordance with 10 CFR 50.55a(z)(2) to Extend B-N-2 and B-N-3 Inservice Inspection Examinations Schedule2017-01-26026 January 2017 Proposed Alternative VEGP-ISI-AL T-13 in Accordance with 10 CFR 50.55a(z)(2) to Extend B-N-2 and B-N-3 Inservice Inspection Examinations Schedule ML17006A1092017-01-26026 January 2017 Alternative to Inservice Inspection Regarding Reactor Pressure Vessel Threads Inflange Inspection ML16326A0442016-12-0808 December 2016 Alternative for Pump and Valve Inservice Testing Program ML16264A3212016-10-14014 October 2016 Alternatives for Pumps and Valves Inservice Testing Program ML14030A5702014-03-20020 March 2014 Request for Alternatives VEGP-ISI-ALT-06 ML13123A1602013-05-0707 May 2013 (VEGP) - Safety Evaluation of Relief Request VEGP-ISI-ALT-09, Version 2.0, Regarding Leakage Tests for Reactor Coolant Pressure Boundary Components ML13032A1062013-02-0707 February 2013 Safety Evaluation of Relief Request VEGP-ISI-ALT-08, Version 1, Regarding Installation of a Mechanical Clamp on a Class 1 Valve - Fourth 10-Year Interval ML1009001292010-06-11011 June 2010 Relief Requests VEGP-ISI-ALT-04 (Units 1 and 2) and VEGP-ISI-RR-01 (Unit 2) Inservice Inspection Alternatives for Third and Subsequent Inservice Inspection Intervals (TAC Nos. ME2226, ME2227, and ME1134) ML1012000882010-04-30030 April 2010 Acceptance of Vogtle Relief Request (VEGP-ISI-ALT-03) Dated April 7, 2010 NL-09-1410, VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii)2009-09-0909 September 2009 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) ML0731004352007-11-15015 November 2007 Third 10-Year Interval, Inservice Program Relief Request RR-V-1 (Tac Nos. MD5409 and MD5410) ML0627703592006-09-29029 September 2006 Evaluation of Relief Request ISI-GEN-ALT-06-02 NL-06-1713, Proposed Alternative for Application of Pressurizer Nozzle Full-Structural Weld Overlays2006-08-10010 August 2006 Proposed Alternative for Application of Pressurizer Nozzle Full-Structural Weld Overlays ML0510301992005-04-25025 April 2005 RR, ISI Program Intervals for Alternative Alignment of Iwe/Iwl Inspection Program (Tac No. MC4870, MC4871, MC4872, MC4873, MC4874, MC4875) ML0332800372003-11-21021 November 2003 Safety Evaluation Re. Request to Use ASME Code Case N-661 ML0225904572002-09-16016 September 2002 Code Relief, Relief Request for the Second Ten-Year Interval Inservice Testing Program 2023-05-30
[Table view] Category:Letter type:NL
MONTHYEARNL-24-0031, Inservice Inspection Program Owner'S Activity Report (OAR-1) for Outage 2R232024-01-29029 January 2024 Inservice Inspection Program Owner'S Activity Report (OAR-1) for Outage 2R23 NL-24-0020, Plan, Unit 1 Responses to NRC Request for Additional Information for Refueling Outage 1R24 Steam Generator Tube Inspection Report2024-01-22022 January 2024 Plan, Unit 1 Responses to NRC Request for Additional Information for Refueling Outage 1R24 Steam Generator Tube Inspection Report NL-23-0926, Correction of Technical Specification Typographical Error2024-01-12012 January 2024 Correction of Technical Specification Typographical Error NL-23-0878, Request for Exemption from Security Event Notification Implementation2023-11-29029 November 2023 Request for Exemption from Security Event Notification Implementation NL-23-0827, Response to Requests for Additional Information for a License Amendment Request and a Proposed Alternative Related to TS 3.4.142023-11-17017 November 2023 Response to Requests for Additional Information for a License Amendment Request and a Proposed Alternative Related to TS 3.4.14 NL-23-0750, Response to Second Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the Colr2023-10-0404 October 2023 Response to Second Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the Colr NL-23-0745, Refueling Outage 1R24 Steam Generator Tube Inspection Report2023-09-22022 September 2023 Refueling Outage 1R24 Steam Generator Tube Inspection Report NL-23-0695, Response to Round 2 Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters Operating, Completion Time Extension (LAR-22-002S2)2023-08-31031 August 2023 Response to Round 2 Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters Operating, Completion Time Extension (LAR-22-002S2) NL-23-0666, License Amendment Request: Remove Combined License Appendix C (LAR 23-008)2023-08-28028 August 2023 License Amendment Request: Remove Combined License Appendix C (LAR 23-008) NL-23-0670, Response to Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-144832023-08-11011 August 2023 Response to Request for Additional Information Regarding License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-14483 NL-23-0658, Southern Nuclear Operating Company - Response to Request for Additional Information Regarding Quality Assurance Topical Report Submittal2023-08-11011 August 2023 Southern Nuclear Operating Company - Response to Request for Additional Information Regarding Quality Assurance Topical Report Submittal NL-23-0672, Licensee Guarantees of Payment of Deferred Premiums2023-08-10010 August 2023 Licensee Guarantees of Payment of Deferred Premiums NL-23-0542, CFR 50.46 ECCS Evaluation Model Annual Report for 20222023-08-0909 August 2023 CFR 50.46 ECCS Evaluation Model Annual Report for 2022 NL-23-0624, Report of Changes to Emergency Plan and Summary of 50.54(q) Analysis2023-08-0404 August 2023 Report of Changes to Emergency Plan and Summary of 50.54(q) Analysis NL-23-0611, Core Operating Limits Report, Cycle 11 Version 12023-07-19019 July 2023 Core Operating Limits Report, Cycle 11 Version 1 NL-23-0584, Preservice Inspection Program Owner'S Activity Report2023-07-10010 July 2023 Preservice Inspection Program Owner'S Activity Report NL-23-0555, Request for Exemption from Physical Barrier Requirement2023-07-0707 July 2023 Request for Exemption from Physical Barrier Requirement NL-23-0506, to Non-Voluntary License Amendment Request: Technical Specification Revision to Adopt WCAP-17661-P-A, Improved RAOC and CAOC Fq Surveillance Technical Specifications2023-07-0505 July 2023 to Non-Voluntary License Amendment Request: Technical Specification Revision to Adopt WCAP-17661-P-A, Improved RAOC and CAOC Fq Surveillance Technical Specifications NL-23-0541, Inservice Inspection Program Owners Activity Report for Outage 1R242023-06-28028 June 2023 Inservice Inspection Program Owners Activity Report for Outage 1R24 NL-23-0444, Quality Assurance Topical Report Submittal2023-06-15015 June 2023 Quality Assurance Topical Report Submittal NL-23-0339, Response to Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters - Operating, Completion Time Extension (LAR-22-002S1)2023-06-13013 June 2023 Response to Request for Additional Information Regarding License Amendment Request for Technical Specification 3.8.3, Inverters - Operating, Completion Time Extension (LAR-22-002S1) NL-23-0455, Report of 10 CFR 50.59 Changes, Tests, and Experiments and 10 CFR 52 Appendix D Departure Report2023-06-12012 June 2023 Report of 10 CFR 50.59 Changes, Tests, and Experiments and 10 CFR 52 Appendix D Departure Report NL-23-0467, Response to Request for Additional Information Regarding License Amendment Request: Timing of Unit 4 Technical Specifications Effectiveness Prior to Initial Criticality (LAR-23-005S1)2023-06-0909 June 2023 Response to Request for Additional Information Regarding License Amendment Request: Timing of Unit 4 Technical Specifications Effectiveness Prior to Initial Criticality (LAR-23-005S1) NL-23-0346, License Amendment Request for Exception to Regulatory Guide 1.163 (LAR 23-007)2023-05-25025 May 2023 License Amendment Request for Exception to Regulatory Guide 1.163 (LAR 23-007) NL-23-0383, SNC Response to Regulatory Issue Summary 2023-01:Preparation And.2023-05-19019 May 2023 SNC Response to Regulatory Issue Summary 2023-01:Preparation And. NL-23-0385, License Amendment Request: More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006R1)2023-05-17017 May 2023 License Amendment Request: More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006R1) NL-23-0398, Withdrawal of Request of License Amendment Request Regarding More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006)2023-05-16016 May 2023 Withdrawal of Request of License Amendment Request Regarding More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006) NL-23-0372, Units 1 & 2, Joseph M. Farley Nuclear Plant - Units 1 & 2, Vogtle Electric Generating Plant - Units 1 & 2, Annual Radiological Environmental Operating Reports for 20222023-05-10010 May 2023 Units 1 & 2, Joseph M. Farley Nuclear Plant - Units 1 & 2, Vogtle Electric Generating Plant - Units 1 & 2, Annual Radiological Environmental Operating Reports for 2022 NL-23-0360, Supplement to License Amendment Request and Exemptions to Allow Use of Lead Test Assemblies for Accident-Tolerant Fuel2023-05-0505 May 2023 Supplement to License Amendment Request and Exemptions to Allow Use of Lead Test Assemblies for Accident-Tolerant Fuel NL-23-0326, Response to Apparent Violation in NRC Inspection Report 05000424, 425/2023090; EA-22-1082023-05-0101 May 2023 Response to Apparent Violation in NRC Inspection Report 05000424, 425/2023090; EA-22-108 NL-23-0217, License Amendment Request to Revise Technical Specification Surveillance Requirement 3.4.14.1 and Proposed Inservice Testing Alternative ALT-VR-022023-05-0101 May 2023 License Amendment Request to Revise Technical Specification Surveillance Requirement 3.4.14.1 and Proposed Inservice Testing Alternative ALT-VR-02 NL-23-0330, Core Operating Limits Report, Cycle 25, Version 12023-04-26026 April 2023 Core Operating Limits Report, Cycle 25, Version 1 NL-23-0310, Annual Non-Radiological Environmental Operating Reports and Annual Radioactive Effluent Release Reports for 20222023-04-25025 April 2023 Annual Non-Radiological Environmental Operating Reports and Annual Radioactive Effluent Release Reports for 2022 NL-23-0135, License Amendment Request: Timing of Technical Specifications Effectiveness Prior to Initial Criticality (LAR-23-005)2023-04-17017 April 2023 License Amendment Request: Timing of Technical Specifications Effectiveness Prior to Initial Criticality (LAR-23-005) NL-23-0019, GEN-ISI-ALT-2023-01, Request to Use Provision of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI2023-04-12012 April 2023 GEN-ISI-ALT-2023-01, Request to Use Provision of a Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI NL-23-0152, License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-144832023-04-11011 April 2023 License Amendment Request: Technical Specification Revision to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-14483 NL-23-0263, Southern Nuclear Company Submittal of Drug and Alcohol Testing Errors Identified 10 CFR 26.719(c) 30-Day Report2023-04-0505 April 2023 Southern Nuclear Company Submittal of Drug and Alcohol Testing Errors Identified 10 CFR 26.719(c) 30-Day Report NL-23-0136, License Amendment Request: More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006)2023-04-0505 April 2023 License Amendment Request: More Restrictive Action for Technical Specification 3.1.9 (LAR-23-006) NL-23-0132, License Amendment Request: Remove Combined License Appendix C (LAR 23-001)2023-04-0404 April 2023 License Amendment Request: Remove Combined License Appendix C (LAR 23-001) NL-23-0014, Southern Nuclear Operating Co Submittal of Report on Status of Decommissioning Funding2023-03-29029 March 2023 Southern Nuclear Operating Co Submittal of Report on Status of Decommissioning Funding NL-23-0208, Independent Spent Fuel Storage Installation ISFSI, Decommissioning Funding Plan Triennial Update2023-03-29029 March 2023 Independent Spent Fuel Storage Installation ISFSI, Decommissioning Funding Plan Triennial Update NL-23-0193, Request for License Amendment: Relocation of TS 3.7.9, Spent Fuel Pool Makeup Water Sources (LAR-23-003)2023-03-24024 March 2023 Request for License Amendment: Relocation of TS 3.7.9, Spent Fuel Pool Makeup Water Sources (LAR-23-003) NL-23-0196, Response to Request for Additional Information Regarding License Amendment Request for Alternative Source Term, TSTF-51, TSTF-471, and TSTF-4902023-03-24024 March 2023 Response to Request for Additional Information Regarding License Amendment Request for Alternative Source Term, TSTF-51, TSTF-471, and TSTF-490 NL-23-0228, Nuclear Property Insurance Coverage as of April 1, 2023 and Licensee Guarantees of Payment of Deferred Premiums (10 CFR 140.21)2023-03-20020 March 2023 Nuclear Property Insurance Coverage as of April 1, 2023 and Licensee Guarantees of Payment of Deferred Premiums (10 CFR 140.21) NL-22-0977, License Amendment Request to Modify Technical Specification 5.5.11.c Acceptance Criteria for Charcoal Filter Testing2023-02-0909 February 2023 License Amendment Request to Modify Technical Specification 5.5.11.c Acceptance Criteria for Charcoal Filter Testing NL-23-0010, Response to Request for Additional Information Regarding License Amendment Request for Alternative Source Term, TSTF-51, TSTF-471, and TSTF-4902023-02-0606 February 2023 Response to Request for Additional Information Regarding License Amendment Request for Alternative Source Term, TSTF-51, TSTF-471, and TSTF-490 NL-23-0076, Exigent License Amendment Request: Technical Specification Exceptions for In-containment Refueling Water Storage Tank Operability Prior to Initial Criticality (LAR-23-004)2023-01-31031 January 2023 Exigent License Amendment Request: Technical Specification Exceptions for In-containment Refueling Water Storage Tank Operability Prior to Initial Criticality (LAR-23-004) NL-23-0013, Response to Request for Additional Information Related to 10CFR 50.75 Decommissioning Funding Assurance Requirements2023-01-30030 January 2023 Response to Request for Additional Information Related to 10CFR 50.75 Decommissioning Funding Assurance Requirements NL-23-0068, Responses to NRC Request for Additional Information Related to the Refueling Outage 2R22 Steam Generator Tube Inspection Report2023-01-27027 January 2023 Responses to NRC Request for Additional Information Related to the Refueling Outage 2R22 Steam Generator Tube Inspection Report NL-23-0012, Post-Audit Supplement to License Amendment Request and Exemptions to Allow Use of Lead Test Assemblies for Accident-Tolerant Fuel2023-01-20020 January 2023 Post-Audit Supplement to License Amendment Request and Exemptions to Allow Use of Lead Test Assemblies for Accident-Tolerant Fuel 2024-01-29
[Table view] |
Text
Southern Nuclea:
Operating Company, Inc SOUTHERN'\
September 09, 2009 COMPANY tuogy to Sal't' limr World Docket Nos.: 50-425 NL-09-1410 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Ladies and Gentlemen:
On April 23, 2009, Southern Nuclear Company (SNC) submitted relief request VEGP-ISI-RR-01 which requests relief from performing strand testing on Vogtle Unit 2 containment tendons, applicable for the 3rd inservice inspection interval.
On July 29, 2009, SNC received a request for additional information (RAI) letter, which contained three (3) questions. Per teleconference on July 24, 2009, the NRC staff acknowledged RR-L-2 submitted by SNC on April 5, 1999 and approved by the NRC on June 16, 2000 which approved SNC request to align containment tendon schedules for Unit 1 and Unit 2 for the second inspection interval. The staff requested SNC submit a similar request for the third inspection interval.
Enclosure 1 contains the SNC responses to the request for additional information.
Enclosure 2 contains the revised relief request VEGP-ISI-RR-01.
Enclosure 3 contains VEGP-ISI-ALT-04, proposed alternative in accordance with 10 CFR 50.55a. VEGP-ISI-ALT-04 requests approval to align Unit 1 and 2 Class CC testing schedules.
SNC requests approval by May 1, 2010 to support testing scheduled for summer 2010.
U. S. Nuclear Regulatory Commission Log: NL-09-1410 Page 2 This letter contains no NRC commitments. If you have any questions, please advise.
Sin~~~
M. J. Ajluni Manager, Nuclear Licensing MJAITAH/Iac
Enclosures:
- 1. Response to Request for Additional Information
- 2. VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
- 3. VEGP-ISI-ALT-04, Version 1.0, Proposed Alternative in Accordance With 10 CFR 50.55a(a)(3)(i) cc: Southern Nuclear Operating Company Mr. J. 1. Gasser, Executive Vice President Mr. 1. E. Tynan, Vice President - Vogtle Ms. P. M. Marino, Vice President - Engineering RType: CVC7000 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Ms. D. N. Wright, NRR Project Manager - Vogtle Mr. M. Cain, Senior Resident Inspector - Vogtle State of Georgia Mr. C. Clark, Commissioner - Department of Natural Resources
Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Enclosure 1 Response to Request for Additional Information
Enclosure 1 Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
The licensee is requested to:
- 1. "Provide a detailed explanation and justification of how the "Proposed Alternative and Basis for Use" stated in RR VEGP-ISI-RR-01 ensures that the Unit 1 strand testing that is credited for Unit 2 is representative of the material condition of the Unit 2 tendons at the time of Unit 2 lift-off testing."
- 2. "The NRC staff requests the licensee to provide the dates of the most recent tendon lift-off testing performed for Unit 1 and Unit 2;"
- 3. "The NRC staff requests the licensee to provide the approximate schedule for tendon lift-off testing for Unit 1 and Unit 2 for the duration of the third 10-year lSI interval (5/31/2007 -5/30/20 17), for which the relief is requested."
RAI Response The following is SNC's response to the RAI:
- 1. VEGP-ISI-RR-01 has been modified to include that Unit 1 and Unit 2 liftoff testing is performed at the same time as modified by VEGP-ISI-ALT-04.
In addition, information has been included to justify the basis for utilizing IWL-2421.
- 2. Liftoff testing was last performed on Unit 2 during 2005, including one vertical tendon detensioned on Unit 1 for testing in accordance with RR-L
- 3. Liftoff testing on Unit 1 was last performed during 2000, including one horizontal and one vertical tendon detensioned on Unit 1 for testing in accordance with RR-L-3. Although approval was obtained to align liftoff testing for both units through RR-L-2 and Technical Specifications, lift off testing was not performed at the same time during the last interval.
- 3. See Table 1 of VEGP-ISI-ALT-04.
Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Enclosure 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Enclosure 2 Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Plant Site - Unit: Vogtle Electric Generating Plant (VEGP) - Unit 2.
Interval Interval Dates: 3rd lSI Interval, May 31,2007 through May 30, 2017.
Req uested Date for Approval: Approval is requested by May 1, 2010, to support examinations scheduled during the summer of 2010.
ASME Code Components Affected: VEGP-2 tendon strands.
Applicable Code Edition and Addenda: ASME Section XI, 2001 Edition through the 2003 Addenda.
Applicable Code Requirement: IWL-2523 requires that a strand sample be examined and tested.
IWL-2523.1 requires that one sample tendon, from each type, be detensioned completely and a single strand removed from each detensioned tendon.
IWL-2523.2 requires that the strands selected in IWL 2523.1 are tension tested and examined for corrosion and mechanical damage.
Impracticality of Compliance: The VEGP Unit 2 post-tensioning system was designed so that no tendons can be detensioned without creating voids in the sheathing filler material. Without the capability to completely detension a tendon, strand samples cannot be removed and tested. VEGP was originally licensed so that tendon lift-off and strand testing would be performed on Unit 1 only. Only the Unit 1 containment structure is equipped with the provision for tendon removal with detensionable anchorage assemblies as stated in VEGP UFSAR section 3.8.1.7.2.
Therefore, relief from the Code requirements should be granted under 10 CFR 50.55a(g)(6)(i) based on impracticality. The Unit 2 containment post tensioning system can not be modified to allow for compliance with the code requirements. The proposed alternative, which is based on testing that was approved by the NRC for the 2 nd E2-1
Enclosure 2 Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii) lSI interval, ensures that the structural integrity of the containment is being maintained.
Burden Caused by Compliance: The current Unit 2 containment configuration does not provide for compliance with the code requirements and the post tensioning configuration can not be modified to allow for compliance.
Proposed Alternative and Basis for Use:
- 1. VEGP will perform lift-off testing on the Unit 2 tendons in accordance with IWL-2520.
- 2. The strands selected during lift-off testing of Unit 1 will be credited for Unit 2.
Both Unit 1 and Unit 2 containments utilize the same prestressing system, are essentially identical in design (with the exception that Unit 2 tendons were not designed to allow detensioning), and are similarly exposed to the same environment. The post tensioning operations for VEGP-1 were completed April, 1986 and VEGP-2 in December, 1986. Therefore, the VEGP units meet the criteria of IWL-2421 (a) allowing for examinations per IWL 2421 (b). Based on the above, Vogtle 1 and 2 meet the requirements of IWL-2421 (a) for a relaxed examination schedule. Therefore, performance of IWL-2520 exams on Unit 2 while crediting Unit 1 strand testing for Unit 2 provides reasonable assurance of structural integrity of the Unit 2 unbonded post tensioning system.
A full test schedule is outlined in VEGP-ISI-ALT-04, Table 1.
Duration of Proposed Alternative: 3rd lSI Interval, May 31,2007 through May 30, 2017.
Precedents: An equivalent Relief Request (RR-L-3) was previously approved for Plant Vogtle.
References:
NRC Safety Evaluation dated June 16, 2000 - TAC NOS.
MA5314 AND MA5315.
Status: Awaiting NRC approval.
E2-2
Vogtle Electric Generating Plant - Unit 2 VEGP-ISI-RR-01, Version 1.0, Relief Request in Accordance With 10 CFR 50.55a(g)(5)(iii)
Enclosure 3 VEGP-ISI-ALT-04, Version 1.0, Proposed Alternative in Accordance With 10 CFR 50.55a(a)(3)(i)
Enclosure 3 Southern Nuclear Operating Company VEGP-ISI-ALT-04, Version 1.0 Proposed Alternative In Accordance With 10 CFR 50.55a(a)(3)(i)
Plant Site-Vogtle Electric Generating Plant -Units 1 and 2 Unit:
Interval-Interval 3 rd lSI Interval, May 31, 2007 through May 30, 2017 Dates:
Requested Date for Approval is requested by May 1, 2010 Approval and Basis:
ASl\tlE Code The exterior portion of the VEGP-1 and 2 Containment Components Buildings fabricated from concrete and their post-tensioning Affected: systems.
Applicable Code ASME Section XI, 2001 Edition through the 2003 Addenda Edition and Addenda:
IWL-2410(a) states: "Concrete shall be examined in accordance with IWL-2510 at 1,3, and 5 years following the completion of the containment Structural Integrity Test CC Applicable 6000 and every 5 years thereafter."
Code Requirements: IWL-2420(a) states: "Unbonded post-tensioning systems shall be examined in accordance with IWL-2520 at 1, 3, and 5 years following the completion of the containment Structural Integrity Test and every 5 years thereafter."
Both Unit 1 and Unit 2 containments utilize the same prestressing system, are essentially identical in design (with the exception that Unit 2 tendons were not designed to allow detensioning), and are similarly exposed to the same environment. The post tensioning operations for VEGP-1 were completed April, 1986 and VEGP-2 in December, 1986. Therefore, the VEGP units meet the criteria of IWL Reason for 2421 (a) allowing for examinations per IWL-2421 (b). Based Request: on the above, Vogtle 1 and 2 meet the requirements of IWL 2421 (a) for a relaxed examination schedule.
The Unit 1 Structural Integrity Test (SIT) was completed on August 23, 1986 and Unit 2 SIT was completed on November 14,1988. Based on these dates, IWL 2421 (b)(1 &2), requires a1l1WL-2500 exams for Unit 1 be performed during 2016 (30-year exams) and Unit 2 during E3-1
Enclosure 3 Southern Nuclear Operating Company VEGP-ISI-ALT-04, Version 1.0 Proposed Alternative In Accordance With 10 CFR 50.55a(a)(3)(i) 2013 (25-year exams). The scheduling of IWL exams do not line up with the schedule approved in previous relief request (2 nd interval RR-L-2) and Technical Specification amendments for testing concrete containments.
At the time of plant construction, it was decided that tendon surveillance for Unit 1 would involve the lift-off and detensioning of tendons, and that Unit 2 would require only visual examination. Since the two units are identical, credit was taken for lift-off testing and detensioning on both units when only one unit received lift-offs and detensioning. Due to the expense of repairing, inspecting, and testing the tendon surveillance platforms, Georgia Power Company, the former operator and licensee of VEGP and sister company to Southern Nuclear Operating Company (SNC), the current operator and licensee, requested a change to the Technical Specifications for VEG P-1 and 2 to allow testing of both containments during the same time period. The requested change was authorized by the NRC in a letter dated September 12, 1989, to Georgia Power Company, and resulted in Amendments 23 and 4 to the Technical Specifications for VEGP-1 and 2, respectively. In addition, lift-off testing was now required on Unit 2 beginning with the three-year inspection, so that lift-off testing would be performed on Unit 2 whenever lift-off testing and detensioning was performed on Unit 1.
Subsequently, with the adoption of the improved Standard Technical Specifications, containment tendon testing requirements were relocated to a containment testing program, TS 5.5.6, (Amendments 96 and 74). Amendments I 147 and 127, dated December 12, 2006, revised TS 5.5.6 to reference IWL for containment testina.
Prior to the amendment made to the VEGP Technical Specifications via SER dated December 12, 2006, containment tendon lift off testing was approved to be performed on a 1O-year frequency with both containment tests being performed during the same period. The 2006 Proposed amendment made reference to IWL for testing of the concrete containments; therefore, the schedule is no longer Alternative mentioned in Technical SpecHications. Continued use of and Basis for the previously approved Technical Specification change will Use: continue to provide assurance of containment structural integrity.
The frequency of proposed testing is equivalent to the requirements of the referenced edition and addenda of the ASME Section XI Code; however, on an alternate schedule E3-2
Enclosure 3 Southern Nuclear Operating Company VEGP-ISI-ALT*04, Version 1.0 Proposed Alternative In Accordance With 10 CFR 50.55a(a)(3)(i) using an administrative date for the SIT date which aligns each Unit's testing with the original Technical Specification schedule (see proposed schedule below). The next tendon and concrete examinations will be performed on VEGP-1 and 2 by August 1, 2010 +/- 1 year and every 5 years +/- 1 year thereafter as outlined in Table 1.
Based on the lift off schedule being approved by a previous version of Technical Specifications, and these examinations being performed at the same frequency as required by the code, relief should be granted under 10 CFR 50.55a(a)(3)(i) because the proposed alternative provides an acceptable level of quality and safety.
Duration of The 3rd lSI Interval, beginning May 31, 2007 and all Proposed subsequent intervals.
Alternative:
Similar alternative RR-L-2 approved for previous inspection interval by SER dated June 16, 2000 (TAC NOS. MA5314 and MA 5315).
Precedents:
A similar inspection schedule was approved for Farley Alternative RR-58 via SER dated March 28, 2006.
VEGP Technical Specifications SR 3.6.1.2 and 5.5.6 previously (prior to approval of Amendments 147 and 127
References:
for Unit 1 and 2, respectively, dated December 12, 2006) implemented the alternative examination schedule for lift off I testinQ.
Status: Awaiting NRC approval E3-3
Enclosure 3 Southern Nuclear Operating Company VEGP-ISI-ALT-04, Version 1.0 Proposed Alternative In Accordance With 10 CFR 50.55a(a)(3)(i)
Table 1 - Proposed IWL Examination Schedule Administrative SIT Date of 811/201 0 for application of future 5-year tests +/- 1 year (I)
Unit-I All IWL-2500 Cat. L-A Only IWL-2524 & All IWL-2500 Cat. L-A Only IWL-2524 &
&L-B IWL-2525 &L-B IWL-2525 08/01/09 - 08/0 III I 08/01114 - 08/01/16 08/01119 - 08/01/21 08/0 I/24 08/0 1/26 Unit-2 All IWL-2500 Cat. L-A Only IWL-2524 & All IWL-2500 Cat. L-A Only IWL-2524 &
& L-B as modified by IWL-2525 & L-B as modified by IWL-2525 VEGP-ISI-RR-OI 08/01114 - 08/01116 VEGP-ISI-RR-OI 08/01/24 - 08/01/26 08/01/09 - 08/01/11 08/0111 9 - 08/01/21 Foot notes:
(1) +/- 1 year means that examinations shall commence no earlier than 1 year prior to the specified date and shall be completed no more than 1 year after specified date (as allowed by IWL-241O(c) and IWL-2420(c)).
E3-4