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 Entered dateSiteRegionReactor typeEvent description
ENS 5696414 February 2024 15:35:00KewauneeNRC Region 3Westinghouse PWR 2-LoopThe following information was provided by the licensee email: At 1227 CST on February 14, 2024, OSHA was notified per 29 CFR 1904.39(a)(2) that an individual was transported to an offsite medical facility for treatment that required the individual to be admitted to the hospital. The individual was not working in a radiologically control area when the injury occurred. This event is being reported pursuant to 10 CFR 50.72(b)(2)(xi). The NRC Regional Inspector has been notified of this event. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: The injured individual was working in an office environment prior to needing medical treatment.
ENS 5038220 August 2014 09:23:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn August 20, 2014, at 0747 hours CDT, Kewaunee Power Station rendered the Auxiliary Building Service Water Return Monitor (R-20) nonfunctional for planned maintenance. R-20 is used for Emergency Action Level (EAL) classification of an unplanned release of liquid radioactivity to the environment that would result in an Alert or Unusual Event and is being conservatively reported under 10CFR50.72(b)(3)(xii) as a loss of emergency assessment capability. R-20 is planned to be restored to functional by 1400 CDT today, 08/20/2014. The NRC Regional Inspector has been notified.
ENS 5029723 July 2014 09:07:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn Wednesday, July 23 at 0748 CDT, the Kewaunee Power Station Technical Support Center (TSC) ventilation system was removed from service for planned maintenance. The removal of the ventilation system potentially affects the TSC habitability during a declared emergency requiring activation. The Emergency Response Organization (ERO) Team has been notified of the maintenance and the possible need to relocate during an emergency. If an emergency is declared and the TSC ERO activation is required, the TSC will be staffed and activated unless the TSC becomes uninhabitable due to ambient temperatures, radiological, or other conditions. If relocation of the TSC staff becomes necessary, the Station Emergency Director will relocate the staff to an alternate TSC location. The ventilation system is expected to be out of service for approximately 2 hours. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability. NRC Regional Inspector has been notified.
ENS 5013122 May 2014 09:34:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn May 22, 2014 at 0708 CDT, Kewaunee Power Station rendered the Auxiliary Building Service Water Return Monitor (R-20) nonfunctional for planned maintenance. R-20 is used for Emergency Action Level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that would result in an Alert or Unusual Event and is being conservatively reported under 10CFR50.72(b)(3)(xiii) as a loss of emergency assessment capability. R-20 is planned to be restored to functional by 1530 CDT today, 05/22/2014. The NRC Regional Inspector has been notified.
ENS 4992919 March 2014 09:36:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn March 19th, 2014, at 0745 hours CST Kewaunee Power Station rendered the Auxiliary Building Service Water Return Monitor (R-20) non-functional for planned maintenance. R-20 is used for Emergency Action Level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that would result in an Alert or Unusual Event and is being conservatively reported under 10CFR50.72(b)(3)(xiii) as a loss of emergency assessment capability. R-20 is planned to be restored to functional by 1230 CST today 03-19-2014. The NRC Resident Inspector has been notified.
ENS 4984520 February 2014 08:30:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn February 20, 2014, at 0655 CST, Kewaunee Power Station rendered the Auxiliary Building Service Water Return Radiation Monitor (R-20) non-functional for planned maintenance. R-20 is used for Emergency Action Level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that would result in an Alert or Unusual Event and is being conservatively reported under 10CFR50.72(b)(3)(xiii) as a loss of emergency assessment capability. R-20 is planned to be restored to functional by 1430 CST today, 2/20/2014. The NRC Resident Inspector has been notified.
ENS 4977128 January 2014 09:09:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn Jan. 28, 2014, at 0734 CST, (Radiation Monitor) R-20, Service Water Sampling Effluent Line (Auxiliary Building Service Water Header) was declared non-functional due to planned maintenance. R-20 is used for Emergency action level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that would result in an Alert or Unusual Event and is being conservatively reported under 10 CFR 50.72(b)(3)(xiii) as a loss of emergency assessment capability. R-20 is planned to be returned to functional (status) by 1300 CST today, 1/28/2014. The spent fuel pool is the only heat load requiring Service Water for cooling and no spent fuel pool activities are in progress or planned. The NRC Resident Inspector has been informed by the licensee.
ENS 4974821 January 2014 08:41:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On Tuesday, January 21 at 0640 CST, the Kewaunee Power Station Technical Support Center (TSC) ventilation system was removed from service for planned maintenance. The removal of the ventilation system potentially affects the TSC habitability during a declared emergency requiring activation. The Emergency Response Organization (ERO) team has been notified of the maintenance and the possible need to relocate during an emergency. If an emergency is declared and the TSC ERO activation required, the TSC will be staffed and activated unless the TSC becomes uninhabitable due to ambient temperatures, radiological, or other conditions. If relocation of the TSC staff becomes necessary, the Station Emergency Director will relocate the staff to an alternate TSC location. The ventilation system is expected to be out of service approximately 8 hrs. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability. The NRC Resident Inspector has been notified.

  • * * UPDATE FROM SAM GOLDSMITH TO CHARLES TEAL AT 1347 EST ON 1/21/14 * * *

The TSC system maintenance is complete and returned to service as of 1140 CST on 1/21/14. The NRC Resident Inspector has been informed. Notified R3DO (Valos).

ENS 494994 November 2013 09:15:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On November 4, 2013 at 0728 CST, the Kewaunee Power Station rendered the Auxiliary Building SPING (Particulate, Iodine, and Noble Gas) Radiation Monitor Mid and Hi ranges non-functional for planned maintenance. The Emergency Response Organization (ERO) has been notified of the Auxiliary Building SPING non-functionality. Work will be performed with high priority on a continuous schedule. The Auxiliary Building SPING is expected to be restored to functional at 1800 CST on November 6, 2013. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify and classify an Emergency Action Level for off-site radiation conditions). The NRC Resident Inspector has been notified.

  • * * UPDATE FROM GARY AHRENS TO DANIEL MILLS AT 1437 EST ON 11/06/13 * * *

The planned maintenance is complete and the Radiation Monitor was returned to service on 11/6/13 at 1010 CST. The licensee has notified the NRC Resident Inspector. Notified R3DO (Duncan).

ENS 4936520 September 2013 08:22:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On September 20th, 2013 at approximately 0645CDT, the Kewaunee Power Station rendered the Auxiliary Building Special Particulate Iodine Noble Gas 'SPING' both Mid and High Range (radiation monitors) non-functional for maintenance on the Mid range. The Emergency Response Organization (ERO) team has been notified of the Auxiliary Building SPING non-functionality due to the maintenance. The SPING is expected to be out of service for approximately 7 hours. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify and classify an Emergency Action Level for offsite radiation conditions). The NRC Resident Inspector has been notified.

  • * * UPDATE FROM DANIEL BACKUS TO CHARLES TEAL AT 1453 EDT ON 9/20/13 * * *

The maintenance required the replacement of the Geiger Muller (GM) detector. The GM detector requires a 12-hour burn in time. The detector is expected to be returned to service at approximately 1900 CDT on 9/21/13. The NRC Resident Inspector has been informed. Notified R3DO (Riemer).

  • * * UPDATE FROM DAVE IRLBECK TO CHARLES TEAL AT 2121 EDT ON 9/21/13 * * *

At 2019 CDT on 9/21/13 the SPING system has been returned to service. The licensee will notify the NRC Resident Inspector. Notified R3DO (Riemer).

ENS 4929422 August 2013 01:11:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn 08/21/2013, the Kewaunee Power Station was notified by Kewaunee County Emergency Management of the inadvertent actuation of siren K-005 at 2100 (CDT). At the time of the actuation, there was severe weather in the area. The siren stopped actuating at 2125. Kewaunee Power Station requested maintenance crews remove power from the siren to prevent additional actuation until repairs can be made. The resulting loss of siren coverage is 4%. Siren K-005 is a shared siren with Point Beach Nuclear Power Plant. Point Beach control room has been notified. The licensee has notified the NRC Resident Inspector.
ENS 492477 August 2013 09:05:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On August 7, 2013, at 0345 (CDT), Kewaunee Power Station was notified that a loss of alert sirens impacting greater than 50% of the Emergency Planning Zone population are non-functional due to a loss of power. The sirens are used to provide a public prompt notification. The sirens lost are those that Point Beach Nuclear Power Plant takes primary responsibility. Power was lost to them during a severe thunderstorm and the expected out of service time is unknown at this time. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability. The NRC Resident Inspector has been notified. See related EN #49246

* * * UPDATE FROM SCOTT CIESLEWICZ TO PETE SNYDER AT 1652 EDT ON 8/7/13 * * * 

Most emergency sirens have been returned to service such that the lost coverage is now only 24%. The licensee notified the NRC Resident Inspector. Notified R3DO (Lara).

ENS 4922330 July 2013 08:40:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On July 30th, 2013 at 0635 CDT, the Kewaunee Power Station Technical Support Center (TSC) ventilation system was removed from service for planned maintenance. The removal of the ventilation system potentially affects the TSC habitability during a declared emergency requiring activation. The Emergency Response Organization (ERO) team has been notified of the maintenance and the possible need to relocate during an emergency. If an emergency is declared and the TSC ERO activation is required, the TSC will be staffed and activated unless the TSC becomes uninhabitable due to ambient temperatures, radiological, or other conditions. If relocation of the TSC staff becomes necessary, the Station Emergency Director will relocate the staff to an alternate TSC location. The ventilation system is expected to be out of service for approximately 5 hours. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability. The NRC Resident Inspector has been notified.

  • * * UPDATE FROM DANIEL BACKUS TO DONALD NORWOOD AT 1550 EDT ON 7/30/2013 * * *

Maintenance was completed and the TSC was returned to service at 1430 CDT. The licensee notified the NRC Resident Inspector. Notified R3DO (Orth).

ENS 4920218 July 2013 09:14:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn July 18th, 2013 at approximately 0830 hours CDT, the Kewaunee Power Station will render the Auxiliary Building Special Particulate Iodine Noble Gas 'SPING' (Mid- and Hi-Range) non-functional for planned maintenance. The Emergency Response Organization (ERO) team has been notified of the Auxiliary Building SPING non-functionality due to planned maintenance. The SPING is expected to be out of service for approximately 5 hours. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify and classify an Emergency Action Level for offsite radiation conditions). The NRC Resident Inspector has been notified.
ENS 490884 June 2013 09:49:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn June 4, 2013, at 0830 CDT, the Kewaunee Power Station rendered the Auxiliary Building Special Particulate Iodine Noble Gas 'SPING' (Mid and Hi Range) and the Reactor Building 'SPING' (Mid and Hi Range) non-functional for planned maintenance. The Emergency Response Organization (ERO) team has been notified of the Auxiliary Building SPING and Reactor Building Vent SPING non-functionality due to planned maintenance. The SPINGs are expected to be out of service for approximately 7 hours. This condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify the upper two emergency action levels for offsite radiation conditions). The NRC Resident Inspector has been notified.
ENS 4902612 May 2013 21:58:00KewauneeNRC Region 3Westinghouse PWR 2-LoopAt 1755 (CDT) on 05/12/13, R-16, Service Water System Effluent Line (Containment Fan Cooling) and R-20, Service Water System Effluent Line (Auxiliary Building Service Water Header) were declared NON-FUNCTIONAL due to low SW (Service Water) sampling flow. R-16 and R-20 are used for Emergency Action Level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that exceeds the requirements of the Offsite Dose Calculation Manual for an Unusual Event and an Alert, and is therefore being reported under 10 CFR 50.72(b)(3)(xiii) as a loss of emergency assessment capability. The Licensee is investigating to determine an appropriate recovery plan. The Licensee has notified the NRC Resident Inspector.
ENS 4892013 April 2013 18:21:00KewauneeNRC Region 3Westinghouse PWR 2-LoopAt 1109 CDT on 4/13/13, R-20, Service Water System Effluent Line (Auxiliary Building Service Water Header) was declared non-functional due to low SW (Service Water) sampling flow. R-20 is used for Emergency Action Level (EAL) classifications of an unplanned release of liquid radioactivity to the environment that exceeds the requirements of the Offsite Dose Calculation Manual for an Unusual Event and an Alert, and is therefore, being conservatively reported under 10 CFR 50.72(b)(3)(xiii) as a loss of emergency assessment capability. The licensee will notify the NRC Resident Inspector.
ENS 489009 April 2013 09:05:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On April 9, 2013, at approximately 0730 hours (CDT), the Kewaunee Power Station declared the Auxiliary Building Vent Special Particulate Iodine Noble Gas 'SPING' Radiation Monitor (Mid and Hi Range) nonfunctional for planned maintenance. The Emergency Response Organization (ERO) team has been notified of the Auxiliary Building Vent SPING nonfunctionality due to planned maintenance. The SPING is expected to be out of service for approximately 3 hours. Although manual 'grab samples' could be used as a backup, this condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify the upper two emergency action levels for offsite radiation conditions). The NRC Resident Inspector has been notified. See similar EN #48881 and 48891.

  • * * UPDATE FROM GARY AHRENS TO HOWIE CROUCH AT 1018 EDT ON 4/9/13 * * *

SPING was returned to service at 0819 CDT. The licensee informed the NRC Resident Inspector. Notified R3DO (Passehl).

ENS 488915 April 2013 08:20:00KewauneeNRC Region 3Westinghouse PWR 2-LoopOn April 5, 2013, at approximately 0730 hours (CDT), the Kewaunee Power Station declared the Reactor Building Special Particulate Iodine Noble Gas (SPING) (Mid and Hi Range) nonfunctional for planned maintenance. The Emergency Response Organization (ERO) team has been notified of this Reactor Building Vent SPING nonfunctionality due to planned maintenance. The SPING is expected to be out of service for approximately 3 hours. Although manual 'grab samples' could be used as a backup, this condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently indentify the upper two emergency action levels for Offsite Radiation conditions). The NRC Resident Inspector has been notified.
ENS 488813 April 2013 11:07:00KewauneeNRC Region 3Westinghouse PWR 2-Loop

On April 3, 2013, at 0800 CDT, the Kewaunee Power Station discovered that the Auxiliary Building Special Particulate Iodine Noble Gas 'SPING' Monitor (Mid and hi Range) was Non-Functional due to an external failure. The SPING is used to aid in assessing Emergency Action Levels. The expected out of service time is unknown at this time. Trouble shooting is currently in progress. Work will be performed with high priority. Although manual 'grab samples' could be used as a backup, this condition is being reported in accordance with 10CFR50.72(b)(3)(xiii) as an event that results in a major loss of emergency assessment capability (unable to sufficiently identify the upper two emergency action levels for Offsite Radiation conditions). The NRC Resident Inspector has been notified.

  • * * UPDATE AT 1448 EDT ON 4/03/13 FROM STODOLA TO HUFFMAN * * *

The Particulate Iodine Noble Gas 'SPING' Monitor was recalibrated and returned to service at 1257 CDT on 4/03/13. The licensee has notified the NRC Resident Inspector. R3DO (Daley) notified.