2025 Reactor Actions
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Quad Cities Nuclear Power Station (EAF-RIII-2025-0074)
On July 16, 2025, the NRC issued a confirmatory order (CO) to Quad Cities Nuclear Power Station (Quad Cities) memorializing commitments reached during an alternative dispute resolution (ADR) mediation session held on June 17 – 18, 2025. The ADR session was associated with six apparent violations involving a reactor pressure vessel valve mispositioning event. Quad Cities agreed to complete wide-ranging corrective actions. As a result of the CO, the NRC will not cite the apparent violations and will not issue an associated civil penalty.
Waterford Steam Electric Station (EAF-RIV-2025-0090)
On June 5, 2025, the NRC issued a notice of violation associated with a white significance determination process finding to Entergy Operations Inc. (licensee) at Waterford Steam Electric Station. The white finding, an issue of low-to-moderate safety significance, involved the licensee’s failure to properly develop and implement adequate maintenance instructions for the 'A' emergency diesel generator, which resulted in its inoperability, contrary to Title 10 of the Code of Federal Regulations, Part 50, Appendix B, Criterion V, “Instructions, Procedures, and Drawings.”
Arkansas Nuclear One, Unit 1 (EA-RIV-2024-0023 / EA-24-107)
On March 13, 2025, the NRC issued a notice of violation to Entergy Operations, Inc. (licensee) for a Severity Level (SL) III violation at Arkansas Nuclear One (ANO), Unit 1. The violation involved the licensee’s failure to implement written procedures, as required by ANO Technical Specification 5.4.1(a). Specifically, a licensed operator accessed non-work-related internet sites multiple times without authorization while standing watch in the control room.
Susquehanna Steam Electric Station, Units 1 and 2 (EA-24-111)
On January 27, 2025, the NRC issued a notice of violation to Susquehanna Nuclear, LLC (licensee) associated with a white significance determination process finding at Susquehanna Steam Electrical Station, Units 1 and 2. The white finding, an issue of low-to-moderate safety significance, involved the licensee’s failure to promptly identify and correct a condition adverse to quality for the 'B' emergency diesel generator (EDG), which resulted in the inoperability of the EDG. This failure to correct a condition adverse to quality was contrary to Title 10 of the
Code of Federal Regulations, Part 50, Appendix B, Criterion XVI, "Corrective Action" and licensee Technical Specifications.
South Texas Project Electric Generating Station, Unit 2 (EA-24-117)
On January 21, 2025, the NRC issued a notice of violation to South Texas Project Nuclear Operating Company (licensee) associated with a white significance determination process finding at South Texas Project Electric Generating Station. The white finding, an issue of low-to-moderate safety significance, involved the licensee’s failure to demonstrate that the performance of a Unit 2 load center breaker, had been effectively controlled through the performance of appropriate preventive maintenance such that the component remained capable of performing its intended function as required by Title 10 of the Code of Federal Regulations (CFR), Part 50.65, “Requirements for monitoring the effectiveness of maintenance at nuclear power plants.”