ML25093A275
| ML25093A275 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 04/07/2025 |
| From: | Jasmine Gilliam NRC/RGN-III/DORS/EB2 |
| To: | Tony Brown Vistra Operations Company |
| References | |
| IR 2025401 | |
| Download: ML25093A275 (1) | |
Text
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION Enclosure(s) transmitted herewith contain(s) SUNSI. When separated from enclosure(s), this transmittal document is decontrolled.
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION Terry Brown Site Vice President Vistra Operations Company, LLC Davis-Besse Nuclear Power Station 5501 N. State Rte. 2, Mail Stop A-DB-3080 Oak Harbor, OH 43449-9760
SUBJECT:
DAVIS-BESSE NUCLEAR POWER STATION - CYBER SECURITY INSPECTION REPORT 05000346/2025401
Dear Terry Brown:
On March 6, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Davis-Besse Nuclear Power Station and discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.
One finding of very low security significance (Green) is documented in this report. This finding involved a violation of NRC requirements. We are treating this violation as a non-cited violation (NCV) consistent with Section 2.3.2 of the Enforcement Policy.
If you contest the violation or the significance or severity of the violation documented in this inspection report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; the Director, Office of Nuclear Security and Incident Response; and the NRC Resident Inspector at Davis-Besse Nuclear Power Station.
The following cross cutting aspect was assigned to a finding using Inspection Manual Chapter 0310 Aspects Within Cross Cutting Areas: [H.1] - Resources.
If you disagree with a cross-cutting aspect assignment in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Nuclear Security and Incident Response; and the NRC Resident Inspector at Davis-Besse Nuclear Power Station.
April 7, 2025
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION T. Brown 2
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION This letter will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html 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, Jasmine A. Gilliam, Chief Engineering Branch 2 Division of Operating Reactor Safety Docket No. 05000346 License No. NPF-3
Enclosure:
As stated cc: J. Joyal, Site Security Manager Davis-Besse Nuclear Power Station C. Salz, State Liaison Officer Ohio Emergency Management Agency cc: w/o encl: Distribution via LISTSERV Signed by Gilliam, Jasmine on 04/07/25
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION T. Brown 3
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION Letter to Terry Brown from Jasmine Gilliam dated April 07, 2025.
SUBJECT:
DAVIS-BESSE NUCLEAR POWER STATION - CYBER SECURITY INSPECTION REPORT 05000346/2025401 DISTRIBUTION w/encl:
Stacy Prasad Jack Giessner Mohammed Shuaibi SOSBInspRptDistro@usnrc.onmicrosoft.com DISTRIBUTION w/o encl:
Alejandro Alen Arias RidsNrrDorlLpl3 RidsNrrPMDavisBesse Resource RidsNrrDroIrib Resource Jack Giessner Mohammed Shuaibi Diana Betancourt-Roldan Harral Logaras Bryan Bergeon David Curtis Jared Heck R3-DORS Non-Public Designation Category: MD 3.4 Non-Public A.7 ADAMS Accession Number: ML25093A274 (Cover letter w/ enclosure(s))
ADAMS Accession Number: ML25093A275 (Cover letter)
Entire Report:
SUNSI Review Non-Sensitive Sensitive Publicly Available Non-Publicly Available Cover Letter Only:
SUNSI Review Non-Sensitive Sensitive Publicly Available Non-Publicly Available OFFICE RIII RIII NAME ADahbur:anm JGilliam DATE 04/03/2025 04/07/2025 OFFICIAL RECORD COPY