Letter Sequence Other |
---|
|
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance
Results
Other: ML17199T383, ML17283A040, ML18135A046, ML18204A242, ML18353A954, ML19044A768, ML19058A216, NRC-2019-0075, Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007), SBK-L-16013, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program, SBK-L-16181, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program, SBK-L-17101, Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan
|
MONTHYEARSBK-L-16013, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program2016-08-0909 August 2016 License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program Project stage: Other ML16258A0222016-09-19019 September 2016 Supplemental Information Needed for Acceptance of Requested Licensing Action Alkali-Silica Reaction Project stage: Acceptance Review ML16265A4402016-10-12012 October 2016 Acceptance of Requested Licensing Action Alkali-Silica Reaction Project stage: Acceptance Review SBK-L-16181, License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program2016-12-23023 December 2016 License Renewal Application Relating to the Alkali-Silica Reaction Monitoring Program Project stage: Other SBK-L-17101, Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan2017-06-16016 June 2017 Update to Reply to a Notice of Violation; EA-16-101 Corrective Action Plan Project stage: Other ML17199T3832017-07-26026 July 2017 Site Visit Report Regarding Regulatory Audit for Alkali Silica Reaction License Amendment Request Project stage: Other ML17214A0852017-08-0404 August 2017 Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction Project stage: RAI ML17283A0412017-08-24024 August 2017 Enclosure 3 - Licensee'S Presentation-Seabrook Station, License Amendment Request 16-03 ASR Structural Evaluation Methodology Project stage: Request SBK-L-17156, Response to Request for Additional Information Regarding License Amendment Request 16-03 Related to Alkali-Silica Reaction2017-10-0303 October 2017 Response to Request for Additional Information Regarding License Amendment Request 16-03 Related to Alkali-Silica Reaction Project stage: Response to RAI SBK-L-17155, Supplement 58 - Response to Request for Additional Information for the Review of the License Renewal Application - Building Deformation Analyses Related to Concrete Alkali-Silica Reaction2017-10-0303 October 2017 Supplement 58 - Response to Request for Additional Information for the Review of the License Renewal Application - Building Deformation Analyses Related to Concrete Alkali-Silica Reaction Project stage: Response to RAI ML17283A0402017-10-10010 October 2017 Enclosure 2 - Nrc'S Presentation Slides-Seabrook Station, License Amendment Request, Stage 3 Methodology Project stage: Other ML17261B2172017-10-11011 October 2017 Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: RAI ML17278A7482017-10-13013 October 2017 Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Meeting ML17310A1142017-10-17017 October 2017 La - (External_Sender) Name Correction: Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Meeting ML17310B5402017-11-0303 November 2017 La - (External_Sender) SBK-L-17180 Supplement 58 - Revised Alkali-Silica Reaction Aging Management Program Project stage: Request SBK-L-17180, Supplement 58, Revised Alkali-Silica Reaction Aging Management Program2017-11-0303 November 2017 Supplement 58, Revised Alkali-Silica Reaction Aging Management Program Project stage: Request ML17341A0622017-11-17017 November 2017 NextEra Energy Seabrook Presentation Slides - Seabrook Station ASR Methodology LAR: Structural Deformation - LAR 16-03, Methodology and Responses to Rais D2-D8 - for November 17, 2017, Public Meeting Project stage: Response to RAI SBK-L-17204, Response to Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007)2017-12-11011 December 2017 Response to Request for Additional Information Regarding License Amendment Request Related to Alkali-Silica Reaction (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Response to RAI ML17340A1862017-12-14014 December 2017 Summary of November 17, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction - Requests for Additional Information (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: RAI ML18102A0972018-04-12012 April 2018 Commission Memorandum and Order CLI-18-04 Project stage: Request SBK-L-18072, Revised Structures Monitoring Aging Management Program2018-05-18018 May 2018 Revised Structures Monitoring Aging Management Program Project stage: Request ML18135A0462018-05-21021 May 2018 Site Visit Report Regarding Regulatory Audit for License Amendment Request Alkali Silica Reaction License Amendment Request and License Renewal Alkali-Silica Reaction Aging Management Program Review (CAC No. MF8260; EPID L-2016-LLA-007) Project stage: Other SBK-L-18074, Response to Request for Additional Information Regarding License Amendment Request 16-032018-06-0707 June 2018 Response to Request for Additional Information Regarding License Amendment Request 16-03 Project stage: Response to RAI ML17088A6742018-08-17017 August 2018 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML18226A2052018-09-28028 September 2018 Redacted, Submission of Alkali-Silica Reaction License Amendment Request Draft Safety Evaluation to Support Advisory Committee on Reactor Safeguards Review of Seabrook License Renewal (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Draft Approval ML18271A0692018-09-28028 September 2018 Attachment 2 NRC Staff Draft Safety Evaluation (Non-Proprietary) Project stage: Request ML18348A9512018-12-14014 December 2018 License Renewal Application: Review of Licensee Program Addressing Alkali-Silica Reaction Project stage: Approval ML18353A9542018-12-19019 December 2018 Report on the Safety Aspects of the License Renewal Application for the Seabrook Station, Unit 1 Project stage: Other ML19011A3562019-01-11011 January 2019 Board Notification Project stage: Request ML19022A4002019-01-22022 January 2019 NRC Staff Board Notification Project stage: Request ML19044A7682019-02-13013 February 2019 Emergency Petition by C-10 Research and Education Foundation for Exercise of Commission'S Supervisory Authority to Reverse No Significant Hazards Determination and Immediately Suspend License Amendment and License Renewal Decisions Project stage: Other ML19042A1102019-02-13013 February 2019 Presentation Slides - 2019 Seabrook Public Meeting Project stage: Request ML19056A4772019-02-13013 February 2019 Transcript of Public Meeting on the Seabrook Alkali Silica Reaction (ASR) License Amendment Request and License Renewal Application, February 13, 2019, Pages 1-158 Project stage: Meeting ML19050A3202019-02-13013 February 2019 Package from Stephen B. Comley, Sr. at February 13, 2019 Seabrook Station, Unit 1, Public Meeting Project stage: Request ML19056A5882019-02-25025 February 2019 NRC Staff Answer to C-10's Emergency Petition Project stage: Request ML19056A5862019-02-25025 February 2019 Nextera'S Answer Opposing C-10 Emergency Petition Project stage: Request ML19046A3832019-02-26026 February 2019 Meeting Summary of February 13, 2019, Public Meeting in Hampton, New Hampshire Alkali-Silica Reaction License Amendment Request and License Renewal Application Project stage: Meeting ML19057A3832019-03-0404 March 2019 Renewal of Full-Power Operating License for Seabrook Station, Unit No. 1 Project stage: Request ML19058A2162019-03-0404 March 2019 Update to Proposed Issuance of a Final No Significant Hazards Consideration Determination and License Amendment Regarding Which a Hearing Has Been Requested (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other ML19015A1832019-03-11011 March 2019 Notice of Issuance of License Amendment to Facility Operating License No. NPF-86 (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Approval ML18204A2422019-03-12012 March 2019 Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other NRC-2019-0075, Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007)2019-03-12012 March 2019 Federal Register Notice - License Amendment; Issuance (CAC No. MF8260; EPID L-2016-LLA-0007) Project stage: Other ML19205A3942019-07-24024 July 2019 NRC046 - Summary of August 24, 2017, Meeting with NextEra Energy Regarding License Amendment Request on Alkali Silica Reaction (CAC No. MF8260; EPID l-2016-lla-0007) (Oct. 13, 2017) Project stage: Meeting 2017-08-04
[Table View] |
|
---|
Category:Letter
MONTHYEARML24009A1152024-01-29029 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L 2023 LLE-0043 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) L-2024-010, Point Units 3 and 4, Seabrook, Duane Arnold, and Point Beach Units 1 and 2, Nuclear Property Insurance - 10 CFR 50.54(w)(3)2024-01-25025 January 2024 Point Units 3 and 4, Seabrook, Duane Arnold, and Point Beach Units 1 and 2, Nuclear Property Insurance - 10 CFR 50.54(w)(3) ML24022A0652024-01-22022 January 2024 Senior Reactor and Reactor Operator Initial License Examinations L-2024-003, NextEra Energy Seabrook, LLC - 10 CFR 50.46 - Emergency Core Cooling System LBLOCA 30-Day Report2024-01-11011 January 2024 NextEra Energy Seabrook, LLC - 10 CFR 50.46 - Emergency Core Cooling System LBLOCA 30-Day Report ML23312A1822023-12-22022 December 2023 Issuance of Amendment No. 172 Revision to Cooling Tower Service Water Loop or Cell Requirements L-2023-173, Quality Assurance Topical Report (FPL-1) Revision 30 Update2023-12-15015 December 2023 Quality Assurance Topical Report (FPL-1) Revision 30 Update L-2023-180, Submittal of Changes to the Technical Specification Bases2023-12-13013 December 2023 Submittal of Changes to the Technical Specification Bases L-2023-177, Supplement to Seabrook Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule2023-11-29029 November 2023 Supplement to Seabrook Exemption Request Regarding Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Final Rule L-2023-155, Supplement to Response to Request for Additional Information, Revised NextEra Common Emergency Plan, and Revised Site-Specific Emergency Plan Annexes Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-06542023-11-28028 November 2023 Supplement to Response to Request for Additional Information, Revised NextEra Common Emergency Plan, and Revised Site-Specific Emergency Plan Annexes Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, L-2023-160, Part 73 Exemption Request Regarding Enhanced Weapons, Firearms, Background Checks, and Security Event Notifications Final Rule2023-11-16016 November 2023 Part 73 Exemption Request Regarding Enhanced Weapons, Firearms, Background Checks, and Security Event Notifications Final Rule ML23318A0772023-11-14014 November 2023 Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000443/2024011 IR 05000443/20234032023-11-0707 November 2023 Security Baseline Inspection Report 05000443/2023403 and Independent Spent Fuel Storage Installation 07200063/2023401 IR 05000443/20230032023-11-0606 November 2023 Integrated Inspection Report 05000443/2023003 IR 05000443/20230102023-10-19019 October 2023 Triennial Fire Protection Inspection Report 05000443/2023010 ML23346A1322023-10-0606 October 2023 Communication from C-10 Research & Education Foundation Regarding NextEra Common Emergency Fleet Plan License Amendment Request and Related Documents Subsequently Published ML23275A0522023-10-0202 October 2023 Requalification Program Inspection IR 05000443/20234012023-09-0808 September 2023 Cybersecurity Inspection Report 05000443/2023401 (Cover Letter Only) IR 05000443/20234202023-09-0505 September 2023 Security Baseline Inspection Report 05000443/2023420 IR 05000443/20230052023-08-31031 August 2023 Updated Inspection Plan for Seabrook Station (Report 05000443/2023005) L-2023-114, Proposed Turkey Point Units 6 and 7; Seabrook Station; Point Beach Units 1 and 2 - Official Service List Update2023-08-17017 August 2023 Proposed Turkey Point Units 6 and 7; Seabrook Station; Point Beach Units 1 and 2 - Official Service List Update IR 05000443/20233022023-08-16016 August 2023 Operator Licensing Retake Examination Report 05000443/2023302 IR 05000443/20230022023-08-0808 August 2023 Integrated Inspection Report 05000443/2023002 L-2023-098, and Point Beach Units 1 and 2 - Response to Request for Additional Information Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 22023-08-0707 August 2023 and Point Beach Units 1 and 2 - Response to Request for Additional Information Regarding License Amendment Request for Common Emergency Plan Consistent with NUREG-0654, Revision 2 ML23201A0872023-08-0303 August 2023 Audit Plan in Support of Review of License Amendment L-2023-104, Preparation and Scheduling of Operator Licensing Examinations2023-08-0303 August 2023 Preparation and Scheduling of Operator Licensing Examinations L-2023-103, Inservice Inspection Examination Report2023-08-0303 August 2023 Inservice Inspection Examination Report ML23192A0782023-07-11011 July 2023 Operator Licensing Retake Examination Approval L-2023-087, Florida Power & Light/Nextera Energy, Results of the Safety Culture Program Effectiveness Review, March 20, 2023 (ADAMS Accession No. ML22340A452)2023-06-29029 June 2023 Florida Power & Light/Nextera Energy, Results of the Safety Culture Program Effectiveness Review, March 20, 2023 (ADAMS Accession No. ML22340A452) SBK-L-23053, Radiological Emergency Plan (Ssrep), Revision 802023-06-22022 June 2023 Radiological Emergency Plan (Ssrep), Revision 80 ML23157A0722023-06-0606 June 2023 Notification of Conduct of a Fire Protection Team Inspection L-2023-074, Addendum to 2021 Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation Ctsfsi) Financial Assurance Update2023-06-0202 June 2023 Addendum to 2021 Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation Ctsfsi) Financial Assurance Update L-2023-071, NextEra Energy Quality Assurance Topical Report (FPL-1) Revision 29 and Florida Power and Light Company Quality Assurance Program Description for 10 CFR Part 52 Licenses (FPL-2) Revision 11, Annual Submittal2023-05-22022 May 2023 NextEra Energy Quality Assurance Topical Report (FPL-1) Revision 29 and Florida Power and Light Company Quality Assurance Program Description for 10 CFR Part 52 Licenses (FPL-2) Revision 11, Annual Submittal IR 05000443/20233012023-05-15015 May 2023 Initial Operator Licensing Examination Report 05000443/2023301 L-2023-064, License Amendment Request 23-01, Revision 1, Update the Period of Applicability (Poa) for the Pressure-Temperature Limits (PTL) and Low Temperature Overpressure Protection (L Top) Curves2023-05-11011 May 2023 License Amendment Request 23-01, Revision 1, Update the Period of Applicability (Poa) for the Pressure-Temperature Limits (PTL) and Low Temperature Overpressure Protection (L Top) Curves IR 05000443/20230012023-05-11011 May 2023 Integrated Inspection Report 05000443/2023001 ML23129A0312023-05-0909 May 2023 Reactor Operator Retake License Examination ML23117A3652023-05-0404 May 2023 Supplemental Information Needed for Acceptance of Requested Licensing Action Amendment Request to Remove Period of Applicability from PTL and Low Temperature Over Pressure Protection Curves SBK-L-23044, 2022 Annual Radiological Environmental Operating Report2023-04-28028 April 2023 2022 Annual Radiological Environmental Operating Report SBK-L-23031, 2022 Annual Radioactive Effluent Release Report2023-04-28028 April 2023 2022 Annual Radioactive Effluent Release Report SBK-L-23033, 2022 Annual Environmental Operating Report2023-04-11011 April 2023 2022 Annual Environmental Operating Report L-2023-053, Core Operating Limits Report for Cycle 232023-04-0505 April 2023 Core Operating Limits Report for Cycle 23 ML23088A1522023-03-29029 March 2023 Summary of Meeting Between Nrc/Region I and C-10 - Questions Regarding Seabrook 4Q2022 Inspection Report L-2023-021, Units, 1 and 2, Turkey Point, Units 3 and 4, Seabrook Station and Point Beach, Units 1 and 2 - Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update2023-03-28028 March 2023 Units, 1 and 2, Turkey Point, Units 3 and 4, Seabrook Station and Point Beach, Units 1 and 2 - Decommissioning Funding Status Reports / Independent Spent Fuel Storage Installation (ISFSI) Financial Assurance Update L-2023-028, and Point Beach Units 1 and 2, 10 CFR 50.46 Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications2023-03-27027 March 2023 and Point Beach Units 1 and 2, 10 CFR 50.46 Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications ML23073A1562023-03-23023 March 2023 Relief Request 4RA-22-01, Relief from the Requirements of the ASME Code L-2023-012, License Amendment Request 23-01, Remove Period of Applicability (Poa) from Pressure Temperature Limits (PTL) and Low Temperature Overpressure Protection (L Top) Curves2023-03-15015 March 2023 License Amendment Request 23-01, Remove Period of Applicability (Poa) from Pressure Temperature Limits (PTL) and Low Temperature Overpressure Protection (L Top) Curves L-2023-025, Fleet Relief Request (Frr) 23-01, Proposed Alternative to ASME Section XI Authorizing Implementation of ASME Code Case N-752-12023-03-15015 March 2023 Fleet Relief Request (Frr) 23-01, Proposed Alternative to ASME Section XI Authorizing Implementation of ASME Code Case N-752-1 L-2023-029, and Point Beach Units 1 and 2 Nuclear Property Insurance - 10 CFR 50.54(w)(3)2023-03-10010 March 2023 and Point Beach Units 1 and 2 Nuclear Property Insurance - 10 CFR 50.54(w)(3) L-2023-023, Revised Steam Generator Tube Inspection Report2023-03-0303 March 2023 Revised Steam Generator Tube Inspection Report ML23020A1002023-03-0303 March 2023 OEDO-22-00419 - 2.206 Petition for Seabrook Station Structure Concrete Concerns (EPID L-2022-CRS-0000)- Closure Letter 2024-01-29
[Table view] Category:Trip Report
MONTHYEARML18135A0462018-05-21021 May 2018 Site Visit Report Regarding Regulatory Audit for License Amendment Request Alkali Silica Reaction License Amendment Request and License Renewal Alkali-Silica Reaction Aging Management Program Review (CAC No. MF8260; EPID L-2016-LLA-007) ML17199T3832017-07-26026 July 2017 Site Visit Report Regarding Regulatory Audit for Alkali Silica Reaction License Amendment Request ML1102700262011-02-0404 February 2011 Scoping and Screening Audit Summary Regarding the Seabrook Station License Renewal Application (TAC Number ME4028) ML0604004182006-02-0909 February 2006 Report of Trip to Alden Laboratory on January 17 and 18, 2006 ML0727105742006-02-0606 February 2006 Draft of Trip Report at Alden Research Laboratory on January 17 and 18, 2006 ML0727105152005-12-16016 December 2005 Trip Report #1770 Nrc/Seabrook Meeting 2018-05-21
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Mano Nazar President and Chief Nuclear Officer Nuclear Division NextEra Energy Seabrook, LLC Mail Stop: EX/JB 700 Universe Blvd. Juno Beach, FL 33408 July 26, 2017
SUBJECT:
SEABROOK STATION, UNIT NO. 1 -SITE VISIT REPORT REGARDING REGULATORY AUDIT FOR LICENSE AMENDMENT REQUEST RE: ALKALI-SILICA REACTION LICENSE AMENDMENT REQUEST (CAC NO. MF8260)
Dear Mr. Nazar:
By letter dated August 1, 2016 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 16216A240), as supplemented by letter dated September 30, 2016 (ADAMS Accession No. ML 16279A048), NextEra Energy Seabrook submitted a license amendment request to revise the current licensing basis for the Seabrook Station, Unit No. 1 (Seabrook), to adopt a methodology for the analysis of Seismic Category I structures with concrete affected by alkali-silica reaction (ASR). The proposed amendment would revise the Seabrook Updated Final Safety Analysis Report to include new methods for analyzing Seismic Category I structures affected by alkali-silica reaction.
By e-mail dated January 13, 2017 (ADAMS Accession No. ML 17017A162), the U.S. Nuclear Regulatory Commission (NRG) staff opened an audit to review the final, complete calculations and other supporting documentation that implement the proposed methodology.
In the audit plan, the NRG staff stated that site visits were one of the methods for conducting the audit. During the week of June 5, 2017, the NRG staff conducted a site visit. Enclosed is our report of that visit. Docket No. 50-443
Enclosure:
Site Visit Report cc w/enclosure:
Distribution via Listserv Sincerely, Justin C. Poole, Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation SITE VISIT REPORT BY THE OFFICE OF NUCLEAR REACTOR REGULATION Background LICENSE AMENDMENT REQUEST RE: ALKALI-SILICA REACTION NEXTERA ENERGY SEABROOK.
LLC. ET AL. SEABROOK STATION, UNIT NO. 1 DOCKET NO. 50-443 By letter dated August 1, 2016 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 16216A240), as supplemented by letter dated September 30, 2016 (ADAMS Accession No. ML 16279A048), NextEra Energy Seabrook (NextEra or the licensee) submitted a license amendment request (LAR) to revise the current licensing basis for the Seabrook Station, Unit 1 (Seabrook), to adopt a methodology for the analysis of Seismic Category I structures with concrete affected by alkali-silica reaction (ASR). The proposed amendment would revise the Seabrook Updated Final Safety Analysis Report (UFSAR) to include new methods for analyzing Seismic Category I structures affected by ASR. In January 2017, the U.S. Nuclear Regulatory Commission (NRC) staff opened an audit to review the final, complete calculations and other supporting documentation that implement the proposed methodology.
In that audit plan, it was stated that one of the tools the staff would use is a site visit. The purpose of the site visit was to support NRC staff review of the Seabrook LAR in accordance with NUREG-0800, "Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition," Sections 3.8.1 and 3.8.4, and Revision 3 of Regulatory Guide 1.92, "Combining Modal Responses and Spatial Components in Seismic Response Analysis" (ADAMS Accession No. ML 12220A043).
The site visit plan is available in ADAMS under Accession No. ML 17150A285.
The overall audit plan is available in ADAMS under Accession No. ML 17017A162.
The site visit was conducted from June 5, 2017, to June 9, 2017. Site Visit Team Members The following NRC staff members and contractors participated in discussions during the audit: D. Hoang, Structural Engineer B. Lehman, Structural Engineer G. Thomas, Senior Structural Engineer J. Poole, Project Manager B. Wittick, Chief R. Morante, Consultant Engineer, Brookhaven National Laboratory J. Braverman, Consultant Engineer, Brookhaven National Laboratory Enclosure Applicant and Industry Staff Participants Ed Carley, NextEra Jackie Hulbert, NextEra Jeff Sobotka, NextEra Brian Brown, NextEra Mike Collins, NextEra Christine Thomas, NextEra Ken Browne, NextEra John Simons, MPR Associates Chris Bagley, MPR Associates Amanda Card, MPR Associates Jim Moroney, MPR Associates Dr. Said Bolourchi, Simpson Gumpertz & Heger Inc. Ryan Mones, Simpson Gumpertz & Heger Inc. Documents Reviewed During the Site Visit
- MPR 3722, Revision 2 (Seabrook FP# 100718), "Strength Testing of Anchors in Concrete Affected by Alkali-Silica Reaction," January 2016.
- MPR 4231, Revision O (Seabrook FP# 1009720), Instrumentation for Measuring Expansion in Concrete Affected by Alkali-Silica Reaction, October 2015.
- MPR 4262, Revision 0 (Seabrook FP# 100994), "Shear and Reinforcement Anchorage Testing of Concrete Affected by Alkali-Silica Reaction Volume I of II," January 2016.
- Seabrook Station Administrative Procedure SMP 2.1, "Structures Monitoring Walkdowns, Data Collection, and Evaluation," Rev. 00.
- Seabrook Station Administrative Procedure SMP 3.1, "ASR Monitoring Walkdowns, Data Collection, and Evaluation," Rev. 00.
- Seabrook Station Administrative Procedure SMP 4.1, "Building Deformation Monitoring Walkdowns, Data Collection, and Evaluation," Rev. 01.
- SIGH 160268 CA 01, Revision O (Seabrook FP# 101042), "Computation of Load Factors for ASR Demands for Seismic Cat 1 Structures Other than Reactor Containment," July 2016.
- SG&H 160268 CD 01, Revision 1 (Seabrook FP# 101083), "Criteria Document for Analysis and Evaluation of Seismic Category I Structures," January 2017.
- SG&H Calculation 150252, "Seismic Response Computation Summary and Examples," Filename:
"2182058.01RG1.92.pdf," February 2017.
- Smaoui, N., Bissonnette, B., Berube, M., and Fournier, B., Stresses induced by alkali-silica reactivity in prototypes of reinforced concrete columns incorporating various types of reactive aggregates, Canadian Journal of Civil Engineering , Volume 34, 2007 [Reference 1.11 in MPR 4273].
- Allford, Morgan Therese, "Expansion Behavior of Reinforced Concrete Elements due to ASR, Masters Thesis, University of Texas at Austin, August 2014 [Reference 6.1 in MPR 4273]. Description of Site Visit Activities and Summary of Observations During the site visit, the staff conducted a tour of the concrete structures impacted by ASR and observed the extent of ASR and the corrective actions taken to date. The staff observed locations where crack monitoring has been ongoing, as well as locations with installed extensometers.
In addition to reviewing the documents listed above, the staff discussed the LAR with licensee staff and contractors, and reviewed the topics included in the site visit audit plan and the draft requests for additional information (RAls), which were shared with the licensee on May 5, 2017 (ADAMS Accession No. ML 17150A286).
The staff reviewed the licensee's use of the "100 40 40 method" for combining the effects of the three directions of earthquake loading. This review focused on the 100 40 40 clarification question included in the site audit plan and resulted in two potential RAls, one addressing the use of 100 40 40 in conjunction with an equivalent static analysis, as opposed to a response spectrum analysis, and the second addressing how the 100 40 40 method will be applied when there is a multiple load interaction effect. The staff also reviewed the licensee's approach to developing the ASR load factors. This discussion focused on clarification of issues summarized in the audit plan and did not result in any further issues. The staff also discussed the licensee's approach for implementing moment redistribution in Stage 3 analysis, primarily relating to how ACI 318 71 code provisions were being met, and the acceptance criteria for demonstrating adequate plastic hinge rotation capacity This was a topic that may be reviewed further through the RAI process. The staff discussed how the licensee intended to address ASR degradation in foundations and if the UFSAR markup in the LAR needed to be updated to include a markup for Section 3.8.5, "Foundations." This discussion resulted in a potential RAI to address the UFSAR markup and how ASR degradation is being managed in concrete foundations.
The staff also discussed the behavior of Seabrook structures to date (in plane and through wall expansion, crack behavior, etc.) in comparison to the behavior seen in the test specimens.
This discussion led to revisions in the draft monitoring RAls to address potential for deviations in in plane expansion behavior from the test specimens.
Finally, the staff reviewed the documentation related to the concrete anchor test program. This review led to a potential RAI related to the representativeness of the test program to Seabrook structures, and specifically, how the anchor types used in the test program would properly represent the behavior of the anchors installed at Seabrook.
The staff also discussed the proposed draft RAls that were shared with the licensee on May 5, 2017. Discussion of the draft RAls led to revisions to the proposed RAls. These changes were intended to clarify and focus the RAls based on information gathered during the audit. As noted above, the monitoring RAls were revised to better capture how the licensee is determining the behavior of Seabrook structures is aligning with the specimen behavior seen during the test program. Discussion of the proposed deformation RAls led to revisions focusing on the use of moment redistribution in Stage 3 analyses, and specifically, how the related code requirements are being met, whether there are any acceptance criteria for when moment redistribution can be used, and whether there are limits on the amount of moment that can be redistributed.
Site Exit Briefing The NRC staff's site visit exit briefing was conducted on the afternoon of June 8, 2017. The staff informed the applicant that based on the discussions, the staff would be modifying the draft RAls as discussed above. The staff also noted that there was a potential for two new RAls related to the use of the 100 40 40 spatial combination method, as well as RAls on foundations and anchor bolts. The staff stated it planned to send NextEra the modified draft RAls, which could be followed by a clarification call if the licensee requests one. The staff would finalize the RAIS following the clarification call. Requests for Additional Information Resulting from the Audit As stated above, there were four new potential RAls based on the discussions held during the site visit, along with modifications to the existing draft RAls. The revised draft RAls were sent by e-mail on July 18, 2017 (ADAMS Accession No. ML 172010107).
SUBJECT:
SEABROOK STATION, UNIT NO. 1 -SITE VISIT REPORT REGARDING REGULA TORY AUDIT FOR LICENSE AMENDMENT REQUEST RE: ALKALI-SILICA REACTION LICENSE AMENDMENT REQUEST (CAC NO. MF8260) DATED JULY 26, 2017 DISTRIBUTION:
Public RidsACRS_MailCTR Resource RidsNrrDorlLpl1 Resource RidsNrrPMSeabrook Resource ADAMS A ccess1on N ML 17199T383 o.: OFFICE DORL/LPL 1/PM DORL/LPL 1/LA NAME JPoole LRonewicz DATE 07/17/2017 07/20/2017 RidsNrrLALRonewicz Resource RidsNrrDeEmcb Resource RidsRgn 1 MailCenter Resource *b *1 d d J I 11 2017 1y e-ma1 ate UIY , DE/EM CB/BC* DORL/LPL 1/BC DORL/LPL 1/PM BWittick JDanna JPoole 07/11/2017 07/25/2017 07/26/2017 OFFICIAL RECORD COPY