ND-22-0040, Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049

Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049

ML22055B066
Person / Time
Site:	Vogtle
Issue date:	02/24/2022
From:	Yox M Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ND-22-0040
Download: ML22055B066 (10)

Text

Michael J. Yox Southern Nuclear Regulatory Affairs Director 7825 River Road Waynesboro, GA 30830 Vogtle 3&4 706 848 6459 tel myox@southernco.com February 24, 2022 Docket Nos.: 52-025 ND-22-0040 52-026 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Vogtle Electric Generating Plant - Units 3 and 4 Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Bevond-Design-Basis External Events (EA-12-049)

References:

1. NRC Order Number EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis Externai Events, dated March 12, 2012.

2. NRC Interim Staff Guidance JLD-ISG-2012-01, Compliance with Order EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis Externai Events, Revision 0, dated August 29, 2012.

3. NEI 12-06, Diverse and Flexible Coping Strategies(FLEX)Implementation Guide, Revision 0, dated August 2012.

4. SNC Letter ND-13-1702, Vogtle Electric Generating Plant Units 3 and 4 Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis Externai Events(Order Number EA-12-049), dated August 22, 2013.

5. SNC Letter ND-20-0164, Vogtle Electric Generating Plant Units 3 and 4 Updated Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis Externai Events (Order EA-12-049), dated May 15, 2020.

Ladies and Gentlemen:

On March 12, 2012, the Nuclear Regulatory Commission (NRC)issued an order (Reference 1) to Southern Nuclear Operating Company. Reference 1 was immediately effective and directed the Vogtle Electric Generating Plant - Units 3 and 4(VEGP 3&4) to develop, implement, and maintain guidance and strategies to maintain or restore core cooling, containment, and spent fuel pool cooling capabilities in the event of a beyond-design-basis external event. Specific requirements are outlined in Attachment 3 of Reference 1.

Reference 1 required submission of an Overall Integrated Plan within one year after issuance of the final NRC Interim Staff Guidance (Reference 2). Reference 2 endorses industry guidance document NEI 12-06, Revision 0(Reference 3) with clarifications and exceptions identified in Reference 2. VEGP 3&4 has provided the original VEGP 3&4 Overall Integrated Plan (Reference 4) and an updated VEGP 3&4 Overall Integrated Plan (Reference 5).

U. S. Nuclear Regulatory Commission ND-22-0040 Page 2 Reference 1 requires submission of a status report at six-month intervals following submittal of the Overall Integrated Plan. Reference 3 provides direction regarding the content of the status reports and was followed in developing the enclosed report. The purpose of this letter is to provide the seventeenth six-month status report pursuant to Section IV, Condition C.2, of Reference 1, that delineates progress made in implementing the requirements of Reference 1.

The enclosed status report provides an update of milestone accomplishments since the last six-month update, including any changes to the compliance method, schedule, or need for relief and the basis, if any.

This letter contains no new regulatory commitments. This letter has been reviewed and determined not to contain security-related information.

If you have any questions, please contact Mr. Steven Leighty at 706-848-6790.

Respectfully submitted.

Michael J. Vox Vogtle 3&4 Regulator^ Affairs Director Southern Nuclear Operating Company MJY/KMS/sfr

Enclosure:

Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049)

U. S. Nuclear Regulatory Commission ND-22-0040 Page 3 go:

Southern Nuclear Qperatlno Company / Georgia Power Comoanv Mr. 8. E. Kuczynski (w/o enclosure)

Mr. P. P. Sena III(w^ enclosure)

Mr. H. NIeh (w/o enclosures)

Mr. G. Chick Mr. S. Stimac Mr. P. Martino Mr. J. B. Williams Mr. D. L. McKinney (w/o enclosures)

Mr. T. W. Yelverton (w/o enclosures)

Mr. B. H. Whitley Mr. W. Levis Ms. C. A. Gayheart Ms. M. Ronnlund Mr. J. M. DeLano Mr. M. J. Vox Mr. T. H. Arnette Mr. H. E. Curry Mr. C. T. Defnall Mr. J. Tupik Ms. A. C. Chamberlain Mr. S. Leighty Ms. K. Roberts Mr. J. Haswell Mr. D. T. BIythe Mr. K. Warren Mr. A. S. Parton Mr. A. Nix Document Services RTYPE: VND.LI.LOO File AR.01.02.06 Nuclear Reaulatorv Commission Mr. M. King (w/o enclosure)

Mr. G. Bowman Ms. M. Bailey (w/o enclosure)

Ms. A. Veil Mr. G.J. Khouri Mr. G. Armstrong Mr. C. Patel Mr. C. Santos Mr. B. Kemker Mr. J. Eargle Mr. C. J. Even Ms. N. C. Coovert Mr. C. Welch Mr. J. Gaslevic Mr. O. Lopez-Santiago Mr. M. Webb Mr. B. Gleaves

U. S. Nuclear Regulatory Commission ND-22-0040 Page 4 Mr. V. Hall Mr. T. Fredette Ms. K. McCurry Mr. B. Davis Mr. J. Parent Mr. B. Griman Mr. P. O'Bryan State of Georoia Mr. R. Dunn Oalethorpe Power Corporation Mr. M. W. Price Mr. B. Brinkman Mr. E. Rasmussen Municipal Electric Authoritv of Georgia Mr. J. E. Fuller Mr. 8. M. Jackson Dalton Utilities Mr. T. Bundros Westinohouse Electric Company. LLC Mr. L. Oriani (w/o enclosures)

Mr. T. Rubenstein (w/o enclosures)

Mr. M. Corletti Mr. D. Hawkins Mr. J. Coward Other Mr. 8. W. Kline, Bechtel Power Corporation Ms. L. A. Matis, Tetra Tech NU8, Inc.

Dr. W. R. Jacobs, Jr., Ph.D., GDS Associates, Inc.

Mr. 8. Roetger, Georgia Public Service Commission Mr. R. L. Trokey, Georgia Public Service Commission Mr. K. C. Greene, Troutman Sanders Mr. 8. Blanton, Balch Bingham

Southern Nuclear Operating Company ND-22-0040 Enclosure Vogtle Electric Generating Plant Units 3 and 4 Seventeenth Six-Month Status Report of the impiementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Bevond-Desiqn-Basis Externai Events(EA-12-049)

(This enclosure consists of 6 pages including this cover page)

ND-22-0040 Enclosure Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events(EA-12-049) 1 Introduction Vogtle Electric Generating Plant(VEGP)- Units 3 and 4 developed an Overall Integrated Plan (Reference 1 in Section 8), followed by an Updated Overall Integrated Plan (Reference 2), documenting the diverse and flexible strategies(FLEX) in response to Nuclear Regulatory Commission Order EA-12-049(Reference 3). This status report provides an update of milestone accomplishments since the last six-month update, including any changes to the compliance method, schedule, or need for relief/relaxation and the basis, if any.

2 Milestone Accompiishments In addition to the submittal of status reports, the following milestone(s) directly related to FLEX implementation have been completed since the last six-month update (Reference 4),

and are current as of February 12, 2022:

• None 3 Milestone Schedule Status The following table provides an update to the milestone schedule with the activity status of each item and whether the expected completion date has changed. The dates are planning dates subject to change as design and implementation details are developed. The revised milestone target completion dates do not impact the Order implementation date.

During this reporting period, one new line item was added:

• Submit 18"^ 6-Month Status Report Revised Target Target Activity Completion Date Milestone Completion Status (Feb 12, 2022 Date data date)

Submit 60 Day Status Report Oct2012 Complete N/A Submit Overall Integrated Plan (OIP) Aug 2013 Complete N/A Submit 6 Month Status Report Feb 2014 Complete N/A Submit 6 Month Status Report Aug 2014 Complete N/A Submit 6 Month Status Report Feb 2015 Complete N/A Submit 6 Month Status Report Aug 2015 Complete N/A Submit 6 Month Status Report Feb 2016 Complete N/A Submit 6 Month Status Report Aug 2016 Complete N/A Submit 6 Month Status Report Feb 2017 Complete N/A Submit 6 Month Status Report Aug 2017 Complete N/A Submit 6 Month Status Report Feb 2018 Complete N/A Submit 6 Month Status Report Aug 2018 Complete N/A Submit 11'^ 6-Month Status Report Feb 2019 Complete N/A Submit 12"^ 6-Month Status Report Aug 2019 Complete N/A Page 2 of 6

ND-22-0040 Enclosure Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049)

Revised Target Target Activity Completion Date Milestone Completion Status (Feb 12, 2022 Date data date)

Staffing Analysis Complete Unit 3 Oct 2019 Complete N/A Submit 13"^ 6-Month Status Report Feb 2020 Complete N/A Submit 14'^ 6-Month Status Report Auq 2020 Complete N/A Submit 15"^ 6-Month Status Report Feb 2021 Complete N/A Submit 16'*^ 6-Month Status Report Aug 2021 Complete N/A Submit 17'^ 6-Month Status Report Feb 2022 Complete N/A Submit 18"^ 6-Month Status Report Aug 2022 Not started N/A Develop FLEX training May 2020 Complete N/A Initiate Phase 3 Equipment Procurement-Feb 2020 Complete N/A Units 3 and 4 Ensure remaining BOB Nuclear Management Procedure(NMP) revisions and program documents (e.g., EOF,ISC, Nov 2021 In Progress Apr 2022 and SEC responses, EP procedures) include necessary information Ensure Operations' BOB procedures (e.g.,

Oct 2021 In Progress Mar 2022 FSGs/SIGs) include necessary information Develop Response Plan with NSRC (storage plan and procedural guidance for Sept 2020 Complete N/A strategy/maintenance)- Units 3 and 4 Training complete and documented for Phase 3to include connection and use of Nov 2020 Complete N/A redundant offsite equipment for Ancillary Equipment.

National SAFER Response Center Oct 2020 Complete N/A (NSRC) Operational for Units 3 and 4 Submit Order EA-12-049 Compliance Nov 2021 In Progress Apr 2022 Report for Unit 3 Staffing Analysis Complete Unit 4(adding Aug 2021 Complete N/A Unit 4 to completed Unit 3 analysis)

Submit Order EA-12-049 Compliance Report for Unit 4 and Final Integrated Plan Apr 2022 Not started July 2022 (FIP)

(1) pending NRC submittal 4 Changes to Compliance Method There are no changes to the compliance method as documented in the Updated Overall Integrated Plan ^Reference 2)since the August 2021 six-month update (Reference 4).

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ND-22-0040 Enclosure Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events(EA-12-049) 5 Need for Relief/Relaxation and Basis for the Relief/Relaxation Vogtle Electric Generating Plant - Units 3 and 4 expects to comply with the order implementation date and no relief/relaxation is required at this time.

6 Open items from Overail Integrated Plan and Draft Safety Evaluation The following tables provide a summary and status of the open items documented in the Updated Overall Integrated Plan (01P) and the confirmatory items documented in the NRC's Interim Safety Evaluation (ISE), dated October 27, 2020(Reference 5).

Common information for VEGP 3&4 will be added to the FLEX program document NMP-GM-038-004 when issued for Unit 3. Specific Unit 4 information will be added to NMP-GM-038-004 when issued for Unit 4.

Overall integrated Plan Open item Status N/A N/A interim Staff Evaluation (ISE) Confirmatory U3 Status U4 Status items In oroaress. VEGP 3 In oroaress. VEGP 4 (Section 3.2.3) Confirmatory Item 1: The design confirmation that confirmation that efforts related to the modifications noted in the DIP construction and testing of construction and testing of related to FLEX are complete. However, SNC the modifications as the modifications as should confirm that the construction and testing of described will be included described will be Included the described modifications will be completed prior in the VEGP 3 FLEX in the VEGP 3&4 FLEX to implementation of 01P.

Compliance Letter. Compliance Letter.

In oroaress. The VEGP In oroaress. The VEGP (Section 3.2.3) Confirmatory Item 2: In the original 3/4 updated sketches will 3/4 updated sketches will 01P, SNC provided simplified sketches depicting be included in the FLEX also be included In the flow paths and FLEX connections. These sketches program document NMP-VEGP 3&4 FIP issued with should be updated and provided in appropriate GM-038-004 issued for the VEGP 3&4 FLEX program documents, including the FIP. VEGP 3 FLEX Compliance Letter.

compliance.

(Section 3.2.3) Confirmatory Item 3: SNC should In oroaress. The VEGP provide an approved equipment list to delineate In oroaress. The VEGP 3/4 approved equipment required FLEX equipment(pumps, generators, fans, 3/4 approved equipment list will be included in the etc.), capacities, need for spares, and associated list will be included in the FLEX program document support (hoses, cables, connections, ducting, etc.) VEGP 3&4 FIP issued with NMP-GM-038-004 issued similar to the information provided in original DIP the VEGP 3&4 FLEX for VEGP 3 FLEX and NEI 12-06. The list should include the required Compliance Letter.

compliance.

critical performance criterion.

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ND-22-0040 Enclosure Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events(EA-12-049)

Interim Staff Evaluation (ISE) Confirmatory U3 Status U4 Status Items (Section 3.2.3) Confirmatory Item 4: SNC should provide a strategy to provide makeup water to 3-RNS-P72-001, Post 72-Hour Operations of containment as discussed in DCD/FSAR Section Containment Makeup, is included in OIP Section 2.19.2.

5.4.7.5.

In oroaress. Additional In oroaress. Additional clarification for VEGP 3/4 clarification for VEGP 3&4 will be added to the FLEX will be included in the program document NMP-VEGP 3&4 FIP issued with GM-038-004 issued for the VEGP 3&4 FLEX VEGP 3 FLEX Compliance Letter.

compliance.

(Section 3.2.3) Confirmatory Item 5: SNC updated the "Cold Weather Checklist" procedure for VEGP In oroaress. 11877-2, Units 1 and 2 to incorporate a check of roads and "VEGP 1-2 Cold Weather access routes in the OCA and protected area for Checklist", will be updated icing conditions. The checklist designated a sand Comoleted.

to include VEGP 4 FLEX procurement location and to deploy ice melt from a routes prior to VEGP 3&4 storage warehouse. SNC needs to confirm that this FLEX compliance.

checklist has been extended to cover the FLEX deployment routes for VEGP Units 3 and 4.

In oroaress. References 63 In oroaress. References 63 (Section 3.2.3) Confirmatory Item 6: 01P and 64 for VEGP 3/4 will and 64 for VEGP 3/4 will References 63 and 64 are noted in Section 2.20.1 be added to the FLEX be added to the VEGP 3&4 as an evaluation of the haul paths for Units 3 and 4. program document NMP-FIP issued with the VEGP These references are not included in the 01P list of GM-038-004 issued for 3&4 FLEX Compliance references. VEGP 3 FLEX Letter.

compliance.

7 Potential Interim Staff Evaluation impacts There are no potential impacts to the Interim Staff Evaluation since submittal of the August 2021 six-month update (Reference 4).

8 References The following references support the updates to the Overall Integrated Plan described in this enclosure.

1. SNC Letter ND-13-1702, Vogtle Electric Generating Piant Units 3and 4 Overaii Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events(Order Number EA-12-049), dated August 22, 2013.

2. SNC Letter ND-20-0164, Vogtle Electric Generating Piant Units 3and 4 Updated Overall Integrated Plan in Response to March 12, 2012 Commission Order Modifying Licenses Page 5 of 6

ND-22-0040 Enclosure Seventeenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049) with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events(Order EA-12-049), dated May 15, 2020.

3. NRG Order Number EA-12-049, Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events, dated March 12, 2012.

4. SNO letter ND-21-0718, Vogtie Electric Generating Plant- Units 3and 4 Sixteenth Six-Month Status Report of the Implementation of the Requirements of the Commission Order with Regard to Mitigation Strategies for Beyond-Design-Basis External Events (EA-12-049), dated August 25, 2021.

5. NRG Letter, Vogtie Electric Generating Plant, Units 3and 4- Staff Evaluation Regarding Implementation of Mitigating Strategies Related to Order EA-12-049(EPID L-2020-LRQ-0002), dated October 27, 2020.

6. NEI 12-06, Diverse and Flexible Coping Strategies(FLEX)Implementation Guide, Revision 0, dated August 2012.

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