The Reactor Water Cleanup (RWCU) is the filtration system for the reactor vessel. (Its kinda like a pool filter) Its primary safety function is to isolate if needed. Filtering is not needed for safe shutdown but it is good to keep clean water in the vessel to avoid contaminates that may become radioactive or mitigating corrosion on various components.
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| | Site | Start date | Title | Description |
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| ENS 58177 | Hatch | 26 February 2026 08:03:00 | Manual Reactor Scram | The following information was provided by the licensee via phone and email:
At 0303 EST on 02/26/26, with Unit 1 in mode 2 at 1 percent power, the reactor was manually tripped as required by procedure due to balance of plant equipment not responding as expected. The trip was not complex, with all systems responding normally post-trip.
Operations responded and stabilized the plant. Reactor water level is being maintained via the control rod drive (CRD) and reactor water cleanup (RWCU) systems. Decay heat is being removed by the RWCU system. Unit 2 is not impacted.
Due to the reactor protection system actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B).
There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. | | ML26034C213 | Limerick | 12 February 2026 | Correction of Amendment Nos. 268 and 230 to Revise the Licensing and Design Basis Related to the Replacement of Safety-Related Analog Control Systems with a Single Digital Plant Protection System | | | IR 05000458/2025004 | River Bend | 11 February 2026 | Integrated Inspection Report 05000458/2025004 | | | IR 05000461/2025004 | Clinton | 10 February 2026 | Integrated Inspection Report 05000461/2025004 | | | GO2-26-022, Snubber Program Plan for the Fifth Code of Records Inservice Testing Interval | Columbia | 5 February 2026 | Snubber Program Plan for the Fifth Code of Records Inservice Testing Interval | | | IR 05000277/2025004 | Peach Bottom | 5 February 2026 | Integrated Inspection Report 05000277/2025004 and 05000278/2025004 and Independent Spent Fuel Storage Installation Inspection Report 07200029/2024001 and Exercise of Enforcement Discretion | | | IR 05000354/2025004 | Salem
Hope Creek | 4 February 2026 | Integrated Inspection Report 05000354/2025004 and Independent Spent Fuel Storage Installation Inspection Report 07200048/2024001 and Exercise of Enforcement Discretion | | | NEI 99-04, Annual Commitment Revision Report for the Period 01/01/25 Through 12/31/25 | Peach Bottom | 29 January 2026 | Annual Commitment Revision Report for the Period 01/01/25 Through 12/31/25 | | | ML26028A200 | Brunswick | 22 January 2026 | Document Request for Brunswick Radiation Protection Inspection Report Number 2026 01 | | | ML26009A155 | Browns Ferry | 9 January 2026 | Document Request for Browns Ferry - Radiation Protection Inspection - Report Number 2026-01 | |
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