Letter Sequence RAI |
---|
|
Initiation
- Request, Request, Request, Request, Request, Request
- Acceptance...
- Supplement, Supplement, Supplement, Supplement, Supplement, Supplement
Results
Other: ML20258A284, ML20269A465, ML20276A192, ML20303A199, ML21036A060, ML21067A504, ML21067A507, ML21084A182, ML21091A004, ML21097A027, ML21145A217, ML21217A187, ML21239A064, ML21239A066, ML21239A068, ML21256A067, ML21256A069, ML21312A002, ML21312A003, ML21312A007, PMNS20211071, Discussion Between NRC and Dominion Regarding the North Anna Subsequent License Renewal - Safety Issue - Cyclic Fatigue, PMNS20211128, Discussion Between NRC and Dominion Regarding the North Anna Subsequent License Renewal - an Inconsistency in Documentation Regarding Reactor Coolant Pump Code Case N 481, TLAA 4.7.6
|
MONTHYEARML20246G6972020-08-24024 August 2020 Application for Subsequent Renewed Operating Licenses Project stage: Request ML20269A4652020-10-0606 October 2020 SLRA - Portal Letter Project stage: Other ML20276A1922020-10-0909 October 2020 Subsequent License Renewal Aging Management Audit Plan Project stage: Other ML20258A2842020-10-13013 October 2020 SLRA - Acceptance and Opportunity for Hearing Letter Project stage: Other ML20303A1992020-10-29029 October 2020 Subsequent License Renewal Safety Project Management Assignment Project stage: Other ML20352A3942020-12-17017 December 2020 Proposed License Amendment Request to Change Battery Surveillance Requirements Project stage: Request ML21035A3032021-02-0404 February 2021 (Naps), Units 1 and 2 - Update to Subsequent License Renewal Application (SLRA) Supplement 1 Project stage: Supplement ML21063A5602021-03-0404 March 2021 Final Request for Additional Information Set 1 - North Anna SLRA Safety Review (EPID L-2020-SLR-0000) - Enclosure Project stage: RAI ML21063A5522021-03-0404 March 2021 Final Request for Additional Information Set 1 - North Anna SLRA Safety Review (EPID L-2020-SLR-0000) - Email Project stage: RAI ML21067A5072021-03-0808 March 2021 Final Request for Confirmation of Information (RCI) Set 1 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure Project stage: Other ML21067A5042021-03-0808 March 2021 Final Request for Confirmation of Information (RCI) Set 1 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email Project stage: Other ML21076B0252021-03-17017 March 2021 Update to Subsequent License Renewal Application, Supplement 2 Project stage: Supplement ML21084A1822021-03-24024 March 2021 Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information for the Safety Review - Set 1 Project stage: Other ML21091A0032021-04-0101 April 2021 Final Request for Additional Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure 1 - RAIs Project stage: RAI ML21091A0042021-04-0101 April 2021 SLRA Safety Review - Withdrawn Requests for Information (EPID No. L-2020-SLR-0000) - Enclosure 2 Project stage: Other ML21091A0022021-04-0101 April 2021 Final Request for Additional Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email Project stage: RAI ML21091A1872021-04-0101 April 2021 Response to NRC Request for Additional Information Regarding Safety Review - Set 1 & Clarification to Aging Management of Fire Protection System Lined Ductile Iron Valves Project stage: Supplement ML21036A0602021-04-0808 April 2021 Report for the Aging Management Audit Regarding the Subsequent License Renewal Application Review Project stage: Other ML21097A0272021-04-14014 April 2021 Request for Withholding from Public Disclosure Regarding Subsequent License Renewal Application Project stage: Other ML21104A0372021-04-15015 April 2021 Request for Withholding Information Regarding Subsequent License Renewal Application Project stage: Withholding Request Acceptance ML21119A2872021-04-29029 April 2021 (Naps), Unit 1 and 2 - Subsequent License Renewal Application (SLRA) Response to NRC Request for Additional Information Safety Review - Set 2 and Flow Accelerated Corrosion Program Enhancement Completion Project stage: Response to RAI ML21119A3402021-04-29029 April 2021 Preparation and Scheduling of Operator Licensing Examinations Project stage: Request ML21123A2972021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - E-mail Project stage: RAI ML21123A2982021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure Project stage: RAI PMNS20210548, Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application2021-05-12012 May 2021 Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application Project stage: RAI ML21145A2172021-05-13013 May 2021 Discussion on May 13, 2021 with Dominion on Select Staff RAIs on North Anna Subsequent License Renewal Application - Dominion Slides Project stage: Other ML21132A2892021-05-13013 May 2021 SLRA RAI Response Public Meeting Project stage: RAI PMNS20210666, Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application2021-05-27027 May 2021 Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application Project stage: RAI ML21221A1482021-05-27027 May 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - NRC Slides Project stage: RAI ML21221A1542021-05-27027 May 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Dominion Slides Project stage: Meeting ML21147A2932021-05-27027 May 2021 (Naps), Units 1 and 2 Subsequent License Renewal Application (SLRA) Response to NRC Request for Additional Information Safety Review - Set 3 and Administrative Change to SLRA Table A4.0-1, Item 25 Project stage: Response to RAI ML21145A2122021-06-0909 June 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Memoranda Project stage: RAI ML21145A2132021-06-0909 June 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Enclosure 1 - Summary Project stage: RAI ML21145A2152021-06-0909 June 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Enclosure 2 - List of Attendees Project stage: RAI ML21166A3512021-06-15015 June 2021 Safety RAIs - Set 4 - Draft Project stage: Draft RAI PMNS20210777, Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application - Topics to Be Determined2021-06-15015 June 2021 Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application - Topics to Be Determined Project stage: RAI PMNS20210778, Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application - Topics to Be Determined2021-06-23023 June 2021 Discussion of Dominion'S Response to Select Staff RAIs on North Anna Subsequent License Renewal Application - Topics to Be Determined Project stage: RAI ML21174A3042021-06-23023 June 2021 SLRA RAI Response Public Meeting - 21-06-24 Project stage: RAI ML21174A1952021-06-23023 June 2021 Safety RAIs - Set Y - Draft - Enclosure Project stage: Draft RAI ML21188A1652021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure Project stage: RAI ML21188A1632021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email Project stage: RAI ML21210A3962021-07-29029 July 2021 (Naps), Units 1 and 2 - Subsequent License Renewal Application (SLRA) Response to NRC Request for Additional Information Safety Review - Set 4 and Supplement 3 Project stage: Supplement ML21217A1872021-08-0505 August 2021 (Naps), Units 1 and 2 - Subsequent License Renewal Application First 10 CFR 54.21 (B) Annual Amendment Project stage: Other ML21221A1362021-08-10010 August 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application Project stage: RAI ML21221A1382021-08-10010 August 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Meeting Summary Project stage: RAI ML21221A1412021-08-10010 August 2021 Meeting Summary: Discussion of Dominion'S Response to Select Staff Requests for Additional Information on Subsequent License Renewal Application (EPID No. L-2020-SLR-0000) - Attendees Project stage: RAI PMNS20211071, Discussion Between NRC and Dominion Regarding the North Anna Subsequent License Renewal - Safety Issue - Cyclic Fatigue2021-08-13013 August 2021 Discussion Between NRC and Dominion Regarding the North Anna Subsequent License Renewal - Safety Issue - Cyclic Fatigue Project stage: Other ML21225A5642021-08-13013 August 2021 Discussion Point for Public Meeting Regarding Fire Protection Piping Cyclic Loading - Presentation Project stage: Meeting ML21225A5512021-08-13013 August 2021 Discussion Point for Public Meeting Regarding Fire Protection Piping Cyclic Loading - Transmittal E-mail Project stage: Meeting ML21238A0942021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email Project stage: Draft RAI 2021-04-29
[Table View] |
|
---|
Category:Request for Additional Information (RAI)
MONTHYEARML23318A1172023-11-13013 November 2023 NRR E-mail Capture - Formal Issuance of RAIs for North Anna Technical Support Center (TSC) License Amendment Request (LAR) (L-2023-LLA-0006) ML23257A2092023-09-14014 September 2023 NRR E-mail Capture - Formal Issuance of 2nd Round RAIs for Surry Units 1&2 and North Anna Units 1&2 Emergency Plans LAR ML23243A9862023-08-31031 August 2023 NRR E-mail Capture - Draft RAIs for EP Staff Augmentation Times LAR (L-2022-LLA-0166) ML23219A1602023-08-0707 August 2023 003 Radiation Safety Baseline Inspection Information Request ML23171B0522023-06-20020 June 2023 NRR E-mail Capture - RAI for Review of Appendix F to DOM-NAF-2-P (Redacted) ML23081A5282023-04-26026 April 2023 Request for Additional Information - North Anna Subsequent License Renewal Application Environmental Review ML23075A0232023-03-15015 March 2023 NRR E-mail Capture - RAI - License Amend Req (LAR) to Revise Tech Spec (Ts) 3.6.8 Limiting Condition for Operation to Remove Refueling Water Chemical Addition Tank and Replace the Containment Sump Buffer North Anna, 1 and 2 (L-2022-LLA-0162 ML23060A0932023-03-0101 March 2023 NRR E-mail Capture - Formal Issuance of RAIs for Surry/North Anna Emergency Plans LAR ML23059A2282023-02-28028 February 2023 NRR E-mail Capture - Draft RAIs for Containment Buffer Change to Natb (L-2022-LLA-0162) ML22251A1292022-09-0909 September 2022 Request for Additional Information Related to Response to Generic Letter 2004-04 ML22242A0452022-08-23023 August 2022 NRR E-mail Capture - Dominion GL 04-02 Response Draft RAIs (L-2017-LRC-0000) ML22083A2102022-03-24024 March 2022 NRR E-mail Capture - Draft RAI - Relief Request N2-14-LMT-003 Fourth Ten Year Inservice Inspection Interval ML21327A3652021-11-23023 November 2021 NRR E-mail Capture - Draft RAI for TSTF-577 LAR ML21322A0962021-11-18018 November 2021 Final Request for Additional Information Set 5 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21322A0992021-11-18018 November 2021 Final Request for Additional Information Set 5 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21256A0672021-09-13013 September 2021 Final Request for Confirmation of Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21256A0692021-09-13013 September 2021 Final Request for Confirmation of Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Request for Confirmation of Information ML21238A0942021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21238A0982021-08-25025 August 2021 Draft Request for Additional Information Set Z - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21225A5022021-08-13013 August 2021 Request for Additional Information for North Anna Power Station, Units 1 and 2, Surry Power Station, Units 1 and 2, and Millstone Power Station, Units 2 and 3, Appendix E of Fleet Report Com-Naf-2 (EPID:L02021-LLT-0000) Public Version ML21195A2442021-07-13013 July 2021 NRR E-mail Capture - Draft RAI Appendix E to Topical Report DOM-NAF-2 Qualification of the Framatome BWU-I CHF Correlation in the Dominion Energy VIPRE-D Computer Code ML21188A1632021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Email ML21188A1652021-07-0707 July 2021 Final Request for Additional Information Set 4 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21174A1952021-06-23023 June 2021 Safety RAIs - Set Y - Draft - Enclosure ML21166A3512021-06-15015 June 2021 Safety RAIs - Set 4 - Draft ML21123A2972021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - E-mail ML21123A2982021-05-0303 May 2021 Final Request for Additional Information Set 3 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure ML21091A0032021-04-0101 April 2021 Final Request for Additional Information Set 2 - North Anna SLRA Safety Review (EPID No. L-2020-SLR-0000) - Enclosure 1 - RAIs ML21091A0042021-04-0101 April 2021 SLRA Safety Review - Withdrawn Requests for Information (EPID No. L-2020-SLR-0000) - Enclosure 2 ML21076A4622021-03-17017 March 2021 NRR E-mail Capture - Draft RAI for Versatile Internals and Component Program for Reactors Vipre Code Review (L-2021-LLT-0000) ML21075A0032021-03-12012 March 2021 Emergency Preparedness Exercise Inspection Request for Information for - Brunswick, Catawba, North Anna, Oconee, Vogtle 1 & 2 ML21063A5602021-03-0404 March 2021 Final Request for Additional Information Set 1 - North Anna SLRA Safety Review (EPID L-2020-SLR-0000) - Enclosure ML21049A0212021-02-17017 February 2021 Notification of an NRC Fire Protection Team Inspection (FPTI) (NRC Inspection Report 05000338/2021012 and 05000339/2021012) and Request for Information (RFI) ML21028A3902021-01-29029 January 2021 Request for Additional Information - North Anna Subsequent License Renewal Application Environmental Review (EPID Number: L-2020-SLE-0000) (Docket: 50-338 and 50-339) ML21028A4352021-01-28028 January 2021 Notification of Target Set Inspection and Request for Information (NRC Inspection Report No. 05000338/2021404 and 05000339/2021404) ML21012A3412021-01-22022 January 2021 Requests for Confirmation of Information for the Environmental Review of the North Anna Power Station, Units 1 and 2, Subsequent License Renewal Application (EPID Number: L-2020-SLE-0000) (Docket: 50-338 and 50-339) ML21019A4512021-01-19019 January 2021 Notification of Inspection and Request for Information ML20316A0422020-11-10010 November 2020 NRR E-mail Capture - FW: Draft RAI for North Anna Unit 2 Steam Generator Tube Inspection Report (ML19179A075) ML20223A3412020-08-10010 August 2020 003 Radiation Safety Baseline Inspection Information Request ML20218A4282020-08-0505 August 2020 Notification of Inspection and Request for Information ML20125A0762020-05-0101 May 2020 NRR E-mail Capture - Draft RAI Related to Revised Reactor Vessel Material Surveillance Capsule Withdrawal Schedule Dominion Energy Virginia North Anna Power Station Units 1 and 2 (L-2020-LLL-0038) ML20113A5792020-04-21021 April 2020 NRR E-mail Capture - Draft RAI North Anna Fifth 10-year Interval Relief Request (L-2020-LLR-0023) ML19354B6142019-12-20020 December 2019 NRR E-mail Capture - Draft RAI for North Anna Relief Request P-9 ML19317F1042019-11-0707 November 2019 NRR E-mail Capture - Draft RAIs for SB LOCA LAR (Non Prop) ML19191A2512019-07-10010 July 2019 NRR E-mail Capture - Request for Additional Information Open Phase Condition LAR ML19169A0962019-06-17017 June 2019 NRR E-mail Capture - Request for Additional Information Emergency Action Level Scheme Change for Millstone Power Station - Units 1, 2, and 3, North Anna Power Station - Units 1 and 2, and Surry Power Station - Units 1 and 2 ML19162A0052019-06-10010 June 2019 NRR E-mail Capture - Draft RAIs for Dominion EAL Scheme Change ML19108A1902019-04-18018 April 2019 Emergency Preparedness Program Inspection Request for Information ML19060A2432019-03-0101 March 2019 Related to License Amendment Request to Address Open Phase Conditions ML18337A1312018-11-29029 November 2018 NRR E-mail Capture - North Anna SPRA (Fukushima 50.54f) Audit Follow-Up Clarification Question on Plant Modifications 2023-09-14
[Table view] |
Text
NORTH ANNA POWER STATION, UNITS 1 AND 2 (NAPS)
SUBSEQUENT LICENSE RENEWAL APPLICATION (SLRA)
REQUESTS FOR ADDITIONAL INFORMATION (RAIS)
SAFETY - SET 3A
- 1. Buried and Underground Piping and Tanks, AMP B2.1.27 Regulatory Basis:
Title 10 of the Code of Federal Regulations (10 CFR) Paragraph 54.21(a)(3) requires an applicant to demonstrate that the effects of aging for structures and components will be adequately managed so that the intended function(s) will be maintained consistent with the current licensing basis for the period of extended operation. One of the findings that the staff must make to issue a renewed license (10 CFR 54.29(a)) is that actions have been identified and have been or will be taken with respect to managing the effects of aging during the period of extended operation on the functionality of structures and components that have been identified to require review under 10 CFR 54.21, such that there is reasonable assurance that the activities authorized by the renewed license will continue to be conducted in accordance with the current licensing basis. In order to complete its review and enable making a finding under 10 CFR 54.29(a), the staff requires additional information in regard to the matters described below.
RAI B2.1.27 2a
Background:
As amended by letter dated April 1, 2021, SLRA Section B2.1.27, Buried and Underground Piping and Tanks, states [t]he Buried and Underground Piping and Tanks program is an existing program that, following enhancement, will be consistent, with NUREG-2191,Section XI.M41, Buried and Underground Piping and Tanks.
Dominions response to RAI B2.1.27-2 dated April 1, 2021 (ADAMS Accession No. ML21091A187) states the following in part:
- NUREG-2191,Section XI.M41, Buried and Underground Piping and Tanks program, allows examinations either to be conducted from the external surface of the tank using visual techniques or from the internal surface of the tank using volumetric techniques, in lieu of cathodic protection. As such, the Buried and Underground Piping and Tanks program (B2.1.27) conducts internal tank surface examinations of the buried EDG
[emergency diesel generator] FOSTs [fuel oil storage tanks] consistent with the guidance in NUREG-2191,Section XI.M41, as an alternative to cathodic protection.
- [t]he EDG FOSTs are cleaned and inspected on a 10-year frequency. During the 2013 EDG FOST inspections, a visual of the interior coating and an ultrasonic thickness examination from inside each tank were performed. Approximately 60 spot ultrasonic thickness readings were obtained from inside each tank, along the length of the tanks.
Thickness readings on both tanks were acceptable and showed no degrading trend from Enclosure
the previous data recorded in 2002. Some minor coating degradation was identified within each tank and repairs were completed prior to returning the tanks to service.
GALL-SLR Report AMP XI.M41 recommends inspections and cathodic protection for buried steel tanks.
Issue:
GALL-SLR Report AMP XI.M41 recommends inspections and cathodic protection for buried steel tanks (i.e., inspections are not performed in lieu of providing cathodic protection).
Therefore, the staff does not consider inspections of these tanks as an adequate basis for not providing cathodic protection.
As part of its basis for not providing cathodic protection for the buried EDG FOSTs, Dominion Energy provided a qualitative summary of the previous two 10-year interval inspections (i.e.,
ultrasonic thickness readings were acceptable, no degrading trend from the previous inspection). However, no quantitative inspection results (e.g., ultrasonic thickness measurements in comparison to Tmin, Tnom, or original thickness; corrosion rates; etc.) were provided. The staff seeks more detailed (i.e., quantitative) inspection results to substantiate Dominion Energys claim that cathodic protection is not necessary for the buried EDG FOSTs during the subsequent period of extended operation (SPEO).
Request:
Provide quantitative inspection results from the 2002 and 2013 EDG FOST inspections (i.e., ultrasonic thickness measurements in comparison to Tmin, Tnom, and original thickness (if available); a drawing or sketch indicated where the ultrasonic thickness measurements were taken, corrosion rates, etc.) to substantiate the claim that cathodic protection is not necessary for the buried EDG FOSTs during the SPEO.
RAI B2.1.27 3a
Background:
In the background section of RAI B2.1.27 3, the staff identified plant specific operating experience indicating that portions of in-scope buried steel and stainless steel piping are not externally coated. Specifically, the staff noted (a) inspections have shown buried in scope stainless steel piping has been found without coating or with significantly disbonded coating; and (b) a leak due to external corrosion on a buried carbon steel service water line identified that the piping was not coated and wrapped in accordance with the installation specification.
Dominion Energys response to RAI B2.1.27-3 dated April 1, 2021, states the following in part:
[b]uried steel piping coating applications include coal tar epoxy, coal tar enamel, or tape wrap.
Buried stainless steel piping coating applications include coal tar enamel or tape wrapped.
GALL-SLR Report Table XI.M41 1 recommends that buried steel and stainless steel piping are externally coated in accordance with the preventive actions program element of GALL-SLR Report AMP XI.M41. In addition, GALL-SLR Report AMP XI.M41 states [a]dditional
inspections, beyond those in Table XI.M41-2[, Inspection of Buried and Underground Piping and Tanks,] may be appropriate if exceptions are taken to program element 2, preventive actions, or in response to plant specific OE [operating experience].
Issue:
Although buried steel and stainless steel piping are specified to be externally coated, plant specific operating experience indicates that coatings were not always provided. Based on this plant specific OE, the seeks additional clarification regarding why additional inspections of buried steel and stainless steel piping are not appropriate.
Request:
Please provide additional OE to demonstrate that State the basis for why additional inspections, beyond those recommended in GALL-SLR Table XI.M41-2, are not appropriate for buried steel and stainless steel piping.