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	Start date	Site	Title	Reporting criterion	System	Topic
ENS 57349	27 September 2024 23:22:00	Grand Gulf	High Pressure Core Spray Injection Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	Reactor Core Isolation Cooling High Pressure Core Spray
ENS 57329	18 September 2024 15:15:00	Columbia	Offsite Notification for Oil Release	10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release	Service water
ENS 57291	26 August 2024 17:00:00	Farley	False Negative Indicated on a Fitness for Duty Blind Quality Assurance Test	10 CFR 26.719, FFD Reporting requirements		Fitness for Duty Blind Performance Test Hydrocodone Hydromorphone
ENS 57245	23 July 2024 18:00:00	Browns Ferry	Part 21 - HPCI Rupture Disc Not within Technical Requirements	10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
ENS 57210	3 July 2024 04:00:00	Hospital Of The University Of Pennsylvania	Patient Underdose	Agreement State		Underdose Reactive Inspection
ENS 57181	18 June 2024 20:40:00	Perry	Inoperability of Division 3 Diesel Generator Supporting High Pressure Core Spray	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	High Pressure Core Spray Emergency Core Cooling System
ENS 57177	18 June 2024 07:17:00	Saint Lucie	Manual Reactor Trip	10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation	Auxiliary Feedwater
ENS 57171	12 June 2024 21:00:00	Avera McKennan Hospital	Medical Event - LUTETIUM-177 Misadministration	10 CFR 35.3045(a)(1)
ENS 57252	7 June 2024 06:46:00	River Bend	Control Room Envelope Failed Surveillance	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	Control Room Emergency Ventilation Control Room Envelope	Potassium iodide
ENS 57146	26 May 2024 12:20:00	South Texas	Two of Three Essential Chilled Water Trains Declared Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	HVAC Containment Spray	Time of Discovery Through Wall Leak
ENS 57120	9 May 2024 20:29:00	FitzPatrick	High Pressure Coolant Injection Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	High Pressure Coolant Injection	Through-Wall Leak
ENS 57098	30 April 2024 05:00:00	Advocate Illinois	Overexposure to an Embryo / Fetus	Agreement State		Overexposure Reactive Inspection
ENS 57061	2 April 2024 05:45:00	Louisiana Energy Services	Item Relied on for Safety (Irofs) Inoperable	Part 70 App A (A)(4)
ENS 57062	1 April 2024 04:00:00	Piedmont Cartersville Medical Ctr.	Received Dose Less than Prescribed	Agreement State		Brachytherapy
ENS 57042	22 March 2024 04:37:00	Waterford	Notification of Unusual Event Due to Fire in the Protected Area	10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation 10 CFR 50.72(a)(1)(i), Emergency Class Declaration 10 CFR 50.72(b)(3)(iv)(A), System Actuation	Feedwater Reactor Protection System Emergency Diesel Generator Main Transformer Emergency Core Cooling System Decay Heat Removal Main Condenser Control Rod
ENS 57043	22 March 2024 01:56:00	Callaway	Automatic Turbine Driven Auxiliary Feedwater Pump Actuation	10 CFR 50.72(b)(3)(iv)(A), System Actuation	Auxiliary Feedwater
ENS 57037	18 March 2024 05:00:00	Mercyone Des Moines Medical Center	Dose to Unplanned Site	Agreement State		Brachytherapy Reactive Inspection
ENS 57026	13 March 2024 01:11:00	Catawba	Loss of Power to Containment Radiation Monitors	10 CFR 50.72(b)(3)(iv)(A), System Actuation
ENS 57012	6 March 2024 12:00:00	Curium Us Llc	Contamination in Restricted Area	10 CFR 30.50(b)(1) 10 CFR 20.2202(b)(2)
ENS 56980	19 February 2024 15:45:00	Peach Bottom	Loss of Reactor Building Ventilation	10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material	Secondary containment Reactor Building Ventilation Standby Gas Treatment System
ENS 56978	19 February 2024 07:36:00	Summer	Automatic Start of B Emergency Diesel Generator	10 CFR 50.72(b)(3)(iv)(A), System Actuation	Feedwater Emergency Diesel Generator
ENS 56970	16 February 2024 03:24:00	Watts Bar	Actuation of Emergency Diesel Generator System	10 CFR 50.72(b)(3)(iv)(A), System Actuation	Emergency Diesel Generator
ENS 56965	14 February 2024 16:10:00	Trinity Health Of New England Medical Group - Ghc Nuclear	Medical Event - Dose Misadministration	10 CFR 35.3045(a)(3)
ENS 56945	1 February 2024 22:00:00	Ascension Providence Hospital	Medical Event - Overdose	10 CFR 35.3045(a)(1)		TheraSphere Overdose
ENS 56941	1 February 2024 18:17:00	Browns Ferry	Offsite Notification - Workplace Injury	10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
ENS 56928	18 January 2024 20:04:00	Columbia	Residual Heat Removal Degraded Due to Service Water Leakage	10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition	Service water Residual Heat Removal Spray Pond	Unanalyzed Condition Ultimate heat sink Mission time
ENS 56916	8 January 2024 07:00:00	St Luke'S Regional Medical Center	Medical Event - Y-90 Underdose	10 CFR 35.3045(a)(1)		TheraSphere Underdose
ENS 56915	5 January 2024 15:40:00	Davis Besse	Emergency Ventilation Systems Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material	Shield Building
ENS 56892	15 December 2023 11:52:00	Jan X-Ray Services, Inc.	NON-AGREEMENT State - Possible Exposure Above Limit (TEDE ≫ 5 Rem)	10 CFR 20.2202(b)(1)
ENS 56866	20 November 2023 15:56:00	Dresden	Hpci Declared Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	High Pressure Coolant Injection Emergency Core Cooling System
ENS 56862	17 November 2023 16:00:00	Up Health Systems Marquette	Medical Event - Y-90 Potential Underdose	10 CFR 35.3045(a)(1)		Underdose
ENS 56859	16 November 2023 13:00:00	Cleveland Cliffs Steel Corporation	NON-AGREEMENT State Report - Failed Indicating Light	10 CFR 30.50(b)(2)
ENS 56849	10 November 2023 21:45:00	Waterford	Unanalyzed Condition	10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition		Unanalyzed Condition
ENS 56829	2 November 2023 12:15:00	Point Beach	False Negative and Positive on Blind Performance Sample	10 CFR 26.719, FFD Reporting requirements		Blind Performance Specimen Blind Performance Sample
ENS 56825	31 October 2023 13:00:00	River Bend	False Negative on Blind Performance Sample	10 CFR 26.719, FFD Reporting requirements		Blind Performance Sample
ENS 56809	21 October 2023 13:07:00	Watts Bar	Notification of Unusual Event Declared	10 CFR 50.72(a)(1)(i), Emergency Class Declaration		Fire Watch
ENS 56733	11 September 2023 00:00:00	Archer Daniels Midland Company	Fire at Facility Containing Radioactive Gauges	Agreement State
ENS 56726	7 September 2023 21:15:00	Tierra Inc.	Agreement State - Lost and Recovered Troxler Gauge	Agreement State		Moisture Density Gauge Troxler Moisture Density Gauge
ENS 56686	17 August 2023 04:00:00	West Virginia University Hospital	Medical Event - Patient Underdose	10 CFR 35.3045(a)(1)		Underdose Thera Sphere Reactive Inspection
ENS 56644	30 July 2023 16:19:00	Waterford	Control Room Envelope Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	Control Room Envelope	Operability Assessment
ENS 56637	25 July 2023 13:24:00	Millstone	Control Room Envelope Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	Control Room Emergency Ventilation Control Room Envelope
ENS 56638	24 July 2023 15:00:00	Christiana Care Health System	Medical Event - Dose to Unintended Organ	10 CFR 35.3045(a)(3)
ENS 56620	12 July 2023 08:49:00	Millstone	ECCS Potentially Inoperable	10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat	Service water Emergency Core Cooling System	Time of Discovery
ENS 56600	26 June 2023 17:00:00	Uhs Of Oklahoma, Llc	Medical Misadministration	Agreement State
ENS 56570	13 June 2023 03:33:00	Fermi	Accident Mitigation - High Pressure Coolant Injection Declared Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident	High Pressure Coolant Injection Emergency Diesel Generator Emergency Equipment Cooling Water	Ultimate heat sink Mission time
ENS 56556	2 June 2023 18:30:00	Seabrook	FITNESS-FOR-DUTY Report	10 CFR 26.719, FFD Reporting requirements
ENS 56520	16 May 2023 16:27:00	Wolf Creek	Emergency Exhaust Inoperable	10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
ENS 56762	8 May 2023 06:00:00	Construction Materials Technologies, Llc	Agreement State - Damaged Gauge	Agreement State
ENS 56512	8 May 2023 04:00:00	Henry Ford Hospital	Potential Medical Event	10 CFR 35.3045(a)(2)		TheraSphere
ENS 56501	2 May 2023 19:00:00	Palisades	Loss of Communications	10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness

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