RA-21-0325, Response to NRC Requests for Confirmation of Information - Set 2

Response to NRC Requests for Confirmation of Information - Set 2

ML21351A000
Person / Time
Site:	Oconee
Issue date:	12/17/2021
From:	Snider S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA-21-0325
Download: ML21351A000 (9)

Text

Steven M. Snider Vice President Oconee Nuclear Station Duke Energy ON01VP l 7800 Rochester Hwy Seneca, SC 29672 o: 864.873.3478 f: 864.873.5791 RA-21-0325 Steve.Snider @duke-energy.com December 1 , 2021 10 CFR 50.4 10 CFR Part 54 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

Oconee Nuclear Station (ONS), Units 1, 2, and 3 Docket Numbers 50-269, 50-270, 50-287 Renewed License Numbers DPR-38, DPR-47, DPR-55 Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 2

References:

1. Duke Energy Letter (RA-21-0132) dated June 7, 2021, Application for Subsequent Renewed Operating Licenses, (ADAMS Accession Number ML21158A193)

2. NRC Letter dated July 22, 2021, Oconee Nuclear Station, Units 1, 2, and 3 - Determination of Acceptability and Sufficiency for Docketing, Proposed Review Schedule, and Opportunity for a Hearing Regarding Duke Energy Carolinas Application for Subsequent License Renewal (ADAMS Accession Number ML21194A245)

3. NRC E-mail dated November 4, 2021, Oconee SLRA - Requests for Confirmation of Information

- Set 1 (ADAMS Accession Number ML21313A232)

4. Duke Energy Letter dated December 2, 2021, Oconee Nuclear Station, Units 1, 2, and 3 -

Response to NRC Requests for Confirmation of Information - Set 1 (ADAMS Accession Number ML21336A001)

5. NRC E-mail dated November 23, 2021, Oconee SLRA - Requests for Confirmation of Information - Set 2 (ADAMS Accession Number ML21330A018)

Ladies and Gentlemen:

By letter dated June 7, 2021 (Reference 1), Duke Energy Carolinas, LLC (Duke Energy) submitted an application for the subsequent license renewal of Renewed Facility Operating License Numbers DPR-38, DPR-47, and DPR-55 for the Oconee Nuclear Station (ONS), Units 1, 2, and 3 to the U.S. Nuclear Regulatory Commission (NRC). On July 22, 2021 (Reference 2), the NRC determined that ONS subsequent license renewal application (SLRA) was acceptable and sufficient for docketing. In an email from Angela X. Wu (NRC) to Steve Snider (Duke Energy) dated November 4, 2021 (Reference 3), the NRC transmitted Set 1 of the specific requests for confirmation of information (RCl) to support completion of the Safety Review. Duke Energy responded to Set 1 of the RCIs in a letter dated December 2, 2021 (Reference 4).

U.S. Nuclear Regulatory Commission December 1 , 2021 Page 2 In an email from Angela X. Wu (NRC) to Steve Snider (Duke Energy) dated November 23, 2021 (Reference 5), the NRC transmitted set 2 of the specific RCls to support completion of the Safety Review. The responses to RCI Set 2 are provided in Enclosure 1.

Should you have any questions regarding this submittal, please contact Paul Guill at (704) 382-4753 or by email at paul.guill@duke-energy.com.

I declare under penalty of perjury that the foregoing is true and correct. Executed on December 1 ,

2021.

Sincerely, Steven M. Snider Site Vice President Oconee Nuclear Station

Enclosures:

Responses to Requests for Confirmation of Information

U.S. Nuclear Regulatory Commission December 1 , 2021 Page 3 CC: W/O

Enclosures:

Laura A. Dudes Regional Administrator U.S. Nuclear Regulatory Commission - Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 Angela X. Wu, Project manager (by electronic mail only)

U.S. Nuclear Regulatory Commission Mail Stop 11 G3 11555 Rockville Pike Rockville, Maryland 20852 Shawn A. Williams, Project Manager (by electronic mail only)

U.S. Nuclear Regulatory Commission Mail Stop 8 B1A 11555 Rockville Pike Rockville, Maryland 20852 Jared Nadel (by electronic mail only)

NRC Senior Resident Inspector Oconee Nuclear Station Anuradha Nair-Gimmi, (by electronic mail only: naira@dhec.sc.gov)

Bureau Environmental Health Services Department of Health & Environmental Control 2600 Bull Street Columbia, South Carolina 29201

U.S. Nuclear Regulatory Commission December 1 , 2021 Page 4 BCC: W/O

Enclosures:

T.P. Gillespie K. Henderson S.D. Capps T.M. Hamilton P.V. Fisk H.T. Grant D.A. Wilson M.C. Nolan S.M. Snider R.K. Nader G.D. Robison T.M. LeRoy P.F. Guill R.V. Gambrell File: (Corporate)

Electronic Licensing Library (ELL)

ENCLOSURE 1 OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 SUBSEQUENT LICENSE RENEWAL APPLICATION RESPONSES TO REQUESTS FOR CONFIRMATION OF INFORMATION

Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Responses to Requests for Confirmation of Information Enclosure 1 Subsequent License Renewal Application Responses to Requests for Confirmation of Information Regulatory Basis:

Part 54 of Title 10 of the Code of Federal Regulations (10 CFR), Requirements for Renewal of Operating Licenses for Nuclear Power Plants, is designed to elicit application information that will enable the U.S. Nuclear Regulatory Commission (NRC) staff to perform an adequate safety review and the Commission to make the necessary findings. Reliability of application information is important and advanced by requirements that license applications be submitted in writing under oath or affirmation and that information provided to the NRC by a license renewal applicant or required to be maintained by NRC regulations be complete and accurate in all material respects. Information that must be submitted in writing under oath or affirmation includes the technical information required under 10 CFR 54.21(a) related to assessment of the aging effects on structures, systems, and components subject to an aging management review. Thus, both the general submission requirements for license renewal applications and the specific technical application information requirements require that submission of information material to NRCs safety findings (see 10 CFR 54.29 standards for issuance of a renewed license) be submitted by an applicant as part of the application.

Background:

By letter dated June 7, 2021 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML21158A193), as supplemented by letters dated October 22, 2021 (ADAMS Accession No. ML21295A035), October 28, 2021 (ADAMS Accession No. ML21302A208), and November 11, 2021 (ADAMS Accession No. ML21315A012), Duke Energy Carolinas, LLC (Duke Energy) submitted to the U.S. Nuclear Regulatory Commission (NRC or staff) an application to renew the Renewed Facility Operating License Nos. DPR-38, DPR-47, and DPR-55 for Oconee Nuclear Station (ONS),

Units 1, 2, and 3. Duke Energy submitted the application pursuant to 10 CFR Parts 54, Requirements for Renewal of Operating Licenses for Nuclear Power Plants, for subsequent license renewal.

Between July 26 and October 8, 2021, the NRC staff conducted audits of Duke Energys records to confirm information submitted in the ONS subsequent license renewal application.

1

Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Responses to Requests for Confirmation of Information Request:

During the audit, the staff reviewed several documents that contain information which will likely be used in conclusions documented in the Safety Evaluation Report (SER). To the best of the staff's knowledge, this information is not on the docket. Any information used to reach a conclusion in the SER must be included on the docket by the applicant. We request that you submit confirmation that the information gathered from the documents and listed below is correct or provide the associated corrected information.

2

Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Responses to Requests for Confirmation of Information Request for Confirmation of Information (RCI) B2.1.30-A:

Based on the audit review of SLR-ONS-AMPR-XI.S3, ASME Section XI, Subsection IWF AMP Evaluation Report, ONS Units 1, 2, and 3, Revision 2, the staff noted from Section 3.2 that Oconee Nuclear Station (ONS) does not contain any Class MC component supports.

Confirm that ONS Units 1, 2, and 3 do not contain Class MC component supports.

Response to RCI B2.1.30-A:

This information has been confirmed to be correct as stated.

3

Oconee Nuclear Station, Units 1, 2, and 3 Subsequent License Renewal Application Responses to Requests for Confirmation of Information Request for Confirmation of Information (RCI) B2.1.30-B:

Based on the audit review of SLR-ONS-AMPR-XI.S3, ASME Section XI, Subsection IWF AMP Evaluation Report, ONS Units 1, 2 and 3, Revision 2, the staff noted from Section 4.3 that plant-specific operating experience has not identified cracking or SCC for high strength bolting used at ONS.

Confirm that plant-specific operating experience to date has not identified cracking due to SCC for high strength bolting greater than 1 inch diameter within the scope of SLRA B2.1.30 AMP at ONS.

Response to RCI B2.1.30-B:

This information has been confirmed to be correct as stated.

4