IR 05000395/2023441

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95001 Supplemental Inspection Report 05000395/2023441 and Follow Up Assessment Letter
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 07/17/2023
From: Stoddard D
Division of Reactor Safety II
To: Stoddard D
Dominion Energy South Carolina
IR 2023441
Download: ML23195A196 (1)


July 17, 2023



Dear Daniel Stoddard:

On June 8, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed a supplemental inspection and discussed the results of this inspection and the implementation of your corrective actions with Mr. D. Lawrence and other members of your staff.

On February 23, 2023, you informed the NRC that your station was ready for the supplemental inspection. The NRC performed this inspection to review your stations actions in response to a Greater-than-Green finding in the Security cornerstone which was documented and finalized in NRC Inspection Report 05000395/2023440.

The NRC determined that your staffs evaluation identified the cause of the Greater than Green finding.

The inspectors determined that the root cause evaluation was documented at a sufficient level of detail, included relevant operating experience, and identified the root causes, extent of conditions, and extent of causes of the performance issue. Based on the results of the inspection, the inspectors concluded the objectives of the IP were met.

The NRC determined that completed or planned corrective actions were sufficient to address the performance issue that led to the Greater than Green finding. The finding is considered closed and will no longer be considered an Action Matrix item as of June 8, 2023. Based on the results of this inspection and our Action Matrix assessment, the NRC has determined that Virgil C. Summer, Unit 1 transitioned to the Licensee Response Column (Column 1), as June 8, 2023.

No findings or violations of more than minor significance were identified during this inspection. This letter will be made available for public inspection and copying at and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

The enclosed report contains Security-Related Information, so the enclosed report will not be made publicly available in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390(d)(1). If you choose to provide a response that contains Security-Related Information, please mark your entire response Security-Related Information-Withhold from public disclosure under 10 CFR 2.390 in accordance with 10 CFR 2.390(d)(1) and follow the instructions for withholding in 10 CFR 2.390(b)(1). The NRC is waiving the affidavit requirements for your response in accordance with 10 CFR 2.390(b)(1)(ii).

Sincerely, Signed by Worosilo, Jannette on 07/17/23 Jannette G. Worosilo, Chief Plant Support Branch Division of Reactor Safety Docket No. 05000395 License No. NPF-12 Enclosure:

As stated cc w/o encl: Distribution via LISTSERV cc w/ encl: Distribution in accordance with OUO-SRI recipients on the NRR Licensee Roster ML23195A196 (Cover letter)

Cover Letter Only: X Non-Sensitive X Publicly Available X SUNSI Review Sensitive Non-Publicly Available OFFICE RII/DRS RII/DRS RII/DRP RII/DRS NAME J. Tornow R. Patterson D. Dumbacher J. Worosilo DATE 7/15/2023 7/17/2023 7/17/2023 7/17/2023