Alert

Emergency Classification

Unusual Event | Alert | Site Area Emergency | General Emergency

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	Event date	Site	Region	Event description
ENS 57270	13 August 2024 15:49:00	Vogtle	NRC Region 2	The following information was provided by the licensee via phone: At 1200 EDT on August 13, 2024, with Unit 2 in Mode 1 at 100 percent power, Vogtle Unit 2 declared an ALERT per emergency action level (EAL) SA9 due to a fire that caused visible damage to a safety system component needed for the current operating mode. At 1151 EDT, the fire was extinguished. The equipment affected was the safety-related regulating 480V transformer which supplies power to the Unit 2 'B' engineered safety features chiller. There was no impact to the safety and health of the public or plant personnel. Units 1, 3, and 4 are unaffected. State and local officials were notified. The NRC resident inspector was notified. The NRC decided to remain in the Normal mode of operation at 1234 EDT. Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, CISA Central, EPA Emergency Ops Center, USDA Watch Officer, FDA Emergency Ops Center (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC THD Desk (email), FEMA NRCC SASC (email), FERC RMC (email), CWMD Watch Desk (email). The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: The fire alarm was received at 1145 EDT. A fire was confirmed at 1149 EDT. The switchgear was de-energized and a fire extinguisher was used to put out the fire. * * UPDATE ON 8/14/2024 AT 1448 EDT FROM JEFF COX TO BRIAN SMITH * * * The licensee terminated the ALERT emergency action level at 1436 EDT. Notified R2DO (Lopez-Santiago), IR MOC (Grant), NRR EO (Felts), DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, CISA Central, EPA Emergency Ops Center, USDA Watch Officer, FDA Emergency Ops Center (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC THD Desk (email), FEMA NRCC SASC (email), FERC RMC (email), CWMD Watch Desk (email).
ENS 56840	8 November 2023 10:37:00	Louisiana Energy Services	NRC Region 2	The following information was provided by the licensee via fax and phone call: An Alert has been declared at Urenco USA. An Alert is the official designation for an emergency which is contained on the URENCO USA site. No public protective actions are recommended at this time. A seismic event was detected near the facility and felt inside the control room. A release of hazardous material has not occurred. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: On 11/08/2023 at 0337 MST, Urenco USA declared an Alert (EAL 5.1A) due to a seismic event felt onsite. The Headquarters Operations Officer was notified of the Alert at 0559 EST (0359 MST). No radioactive release has occurred. A 5.2 magnitude earthquake occurred in western Texas with an epicenter 36.7 km west-southwest of Mentone, Texas. Plant personnel are conducting walkdowns of the site. The State and local authorities have been notified. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email) * * UPDATE ON 11/8/2023 AT 1153 EST FROM JIM RICKMAN TO SAMUEL COLVARD * * * TERMINATION OF SEISMIC EVENT ALERT The following information was provided by the licensee via fax and phone call: The earthquake of 5.2 magnitude in western Texas was felt in the control room. No release of UF6 was detected. Building inspections have been completed with no damage identified. This event has been terminated at 0937 MST and has entered into the recovery process. The State and local authorities have been notified. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email), R2DO (Miller), NMSS (Brenneman), IRMOC (Grant), OPA (Burnell). The following additional information was obtained in accordance with Headquarters Operations Officers Report Guidance: US Geological Survey (USGS) updated the seismic event to 5.3 magnitude at 10:27 on 11/08/23.
ENS 56711	2 September 2023 13:17:00	Honeywell International, Inc.	NRC Region 2	The following information was provided by the licensee via email: On 09/02/2023, Honeywell declared a 'Plant Emergency' at 0815 CDT and upgraded to an 'Alert' at 0835 CDT in accordance with the Honeywell Emergency Response Plan due to a uranium hexafluoride leak on the kinney pump system. Notified DHS Senior Watch Officer, FEMA Operations Center, CISA Central watch officer, DOE Operations Center, HHS Operations Center, EPA Emergency Operations Center, USDA Operations Center, FDA EOC (email), FEMA NWC (email), and DHS Nuclear SSA (email), FEMA NRCC (email) and CWMD watch desk (email). * * UPDATE ON 9/2/2023 AT 2241 EDT FROM HONEYWELL INTERNATIONAL TO IAN B. HOWARD * * * The 'All Clear' was declared at 2115 CDT on 09/02/2023. There were no injuries related to this incident. This statement constitutes the NRC notification related to the incident. Honeywell is currently investigating the cause of the event. Notified R2DO (Miller), NMSS/DFM Division Director (Helton), NMSS Events Notification (email), IRMOC (Grant), DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email).
ENS 56277	16 December 2022 23:45:00	Louisiana Energy Services	NRC Region 2	The following information was provided by the licensee via fax and phone call: An Alert has been declared at Urenco USA. An Alert is the official designation for an emergency which is contained on the URENCO USA site. No public protective actions are recommended at this time. A seismic event was detected near the facility. A release of hazardous material has not occurred. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: On 12/16/2022 at 1645 MST, Urenco USA declared an Alert due to seismic event felt onsite. The Headquarters Operations Officer was notified of the Alert at 1916 EST (1716 MST). No radioactive release has occurred. A 5.4 magnitude earthquake occurred in western Texas with an epicenter 20 km north-northwest of Midland, Texas. Plant personnel are conducting walkdowns of the site. The licensee notified state and local authorities. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email) * * UPDATE ON 12/17/2022 AT 1400 MST FROM DANEIL MOLINAR TO BRIAN LIN* * * On 12/17/2022 at 1400 MST, Urenco USA terminated the Alert due to a seismic event felt onsite. Urenco USA met conditions for event termination. No damages were found upon completion of site walkdowns. The licensee has notified state and local authorities. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email), R2DO (Miller), IR (Ulses), NMSS (Helton)
ENS 56225	16 November 2022 21:45:00	Louisiana Energy Services	NRC Region 2	The following information was provided by the licensee via fax: An Alert has been declared at Urenco USA. An Alert is the official designation for an emergency which is contained on the URENCO USA site. No public protective actions are recommended at this time. A seismic event was detected near the facility. A 'vibratory' ground motion is felt in the Control Room, recognized as an earthquake, and verified by field personnel. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: On 11/16/2022 at 1445 MST, Urenco USA declared an Alert (EAL SA.1) due to a seismic event felt onsite. The Headquarters Operations Officer was notified of the Alert at 1657 EST (1447 MST). No radioactive release had occurred. No structural damage had been detected. A 5.4 magnitude earthquake occurred in western Texas with an epicenter 90 miles southwest of Hobbs, New Mexico, a town close to the facility. Plant personnel are conducting walkdowns of the site. The licensee notified state and local authorities. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email) * * UPDATE ON 11/17/2022 AT 1900 EST FROM URENCO USA TO BRIAN P. SMITH * * * On 11/17/2022 at 1700 MST, Urenco USA terminated the Alert due to a seismic event felt onsite. Urenco USA met conditions for event termination. No damages were found upon completion of site walkdowns. The licensee has notified state and local authorities. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, FDA EOC (email), FEMA NWC (email), DHS Nuclear SSA (email), DHS NRCC (email), FEMA NRCC SASC (email), FERC (email), R2DO (Miller), IR (Crouch), NMSS (Lubinski)
ENS 56161	13 October 2022 22:25:00	Honeywell International, Inc.	NRC Region 2	On 10/13/2022 at 1725 CDT, the licensee declared an Alert due to a fire in a laboratory building under renovation. The licensee contacted local Fire and Emergency Medical Service who responded and extinguished the fire. There was no offsite release of radiological material. The licensee notified local authorities and the Illinois Emergency Management Agency of the event. * * UPDATE ON 10/13/22 AT 1851 CDT FROM SEAN PATTERSON TO KERBY SCALES * * * At 1851 CDT, the licensee terminated the Alert and reported the fire was out. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, CISA Central Watch Officer, EPA EOC, R2DO (Miller), IRMOC (Whited), Director DFM (Helton).
ENS 55094	3 February 2021 14:15:00	National Institute of Standards and Technology	NRC Region 0	At 0910 EST, the National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) test reactor declared an ALERT in accordance with their NRC approved Emergency Plan, due to the stack radiation monitor reading 100,000 counts per minute due to the release of fission products. The reactor had been operating at 50% power (10 MW), and automatically scrammed one minute prior based on the stack monitor reaching 50,000 counts per minute. When the automatic scram occurred, the facility ventilation system automatically changed to emergency ventilation mode to limit discharge to the environment. Several workers were determined to be externally contaminated and these workers were decontaminated by a change of clothes and showers. These workers are being monitored for possible uptake of internal contamination. Environmental surveys are in progress. The NRC remained in the normal mode. Notified DHS SWO, FEMA Operations Center, CISA Central, USDA Operations Center, HHS Operations Center, DOE Operations Center, EPA Emergency Operations Center, FDA EOC (email), FEMA NWC (email), FEMA NRCC SASC (email) and NuclearSSA (email). * * UPDATE FROM TOM NEWTON TO KARL DIEDERICH AT 1532 EST ON 2/3/21 * * * Event is downgraded to a Notification of Unusual Event (NOUE) based upon environmental samples at the site boundary. Members of the public are not expected to have been contaminated. Notified R1DO (Dentel), NRR EO (Miller), IRD (Kennedy), DHS SWO, FEMA Operations Center, CISA Central, USDA Operations Center, HHS Operations Center, DOE Operations Center, EPA Emergency Operations Center, FDA EOC (email), FEMA NWC (email), FEMA NRCC SASC (email) and NuclearSSA (email). * * UPDATE FROM TOM NEWTON TO HOWIE CROUCH AT 1940 EST ON 2/3/21 * * * At 1935 EST, NIST terminated the Notification of Unusual Event. The basis for termination was that all air samples were normal. Notified R1DO (Dentel), NRR EO (Miller), IRD (Kennedy), NPR PM (Torres and Montgomery), NPR (Takacs), DHS SWO, FEMA Operations Center, CISA Central, USDA Operations Center, HHS Operations Center, DOE Operations Center, EPA Emergency Operations Center, FDA EOC (email), FEMA NWC (email), FEMA NRCC SASC (email) and NuclearSSA (email).
ENS 53765	2 December 2018 05:00:00	Nine Mile Point	NRC Region 1	During the post-maintenance testing run of the Division III Emergency Diesel Generator (EDG), (a field operator) reported smoke coming from the diesel and an emergency shutdown was required. After the EDG was shutdown, significant damage (thrown rod) to the EDG was observed. Emergency Action Level HA 2.1 (an Alert) was declared at 0530 (EST). Currently, the plant is stable and operating at 100 percent power. All safety systems are available. The damage occurred approximately 20 minutes into the required 1 hour run. The licensee's emergency response organization has been activated. No offsite assistance was required or requested. There is a 14-day shutdown limiting condition for operation (LCO) in effect under technical specification 3.5.1 for the high pressure core spray system. Notified DHS Senior Watch Officer, FEMA Operations Center, DHS NICC Watch Officer, HHS Operations Center, DOE Operations Center, EPA Emergency Operations Center, FDA EOC (email), FEMA NWC (email) and DHS Nuclear SSA (email). The licensee has notified state and local authorities and the NRC Resident Inspector. * * UPDATE ON 12/2/18 AT 0737 EST FROM TODD DAVIS TO HOWIE CROUCH * * * The licensee terminated the Alert at 0731 EST on 12/2/18. The basis for termination was that the licensee has met all procedural requirements to terminate the emergency and on-shift personnel can operate the unit without further assistance. Notified R1DO (Burritt), NRR EO (Miller), IRD MOC (Gott), HQPAO (Couret), ERDS Activation Group, DHS Senior Watch Officer, FEMA Operations Center, DHS NICC Watch Officer, HHS Operations Center, DOE Operations Center, EPA Emergency Operations Center, FDA EOC (email), FEMA NWC (email) and DHS Nuclear SSA (email).
ENS 52876	28 July 2017 19:06:00	Diablo Canyon	NRC Region 4	Containment atmosphere oxygen level was measured at 18.4 percent. This is below normal habitability level. The cause of the low oxygen level is a nitrogen leak inside containment Nitrogen has been isolated from containment and operators are preparing to purge containment. The licensee notified the State of California, local authorities and the NRC Resident Inspector. Notified the DHS SWO, FEMA OPS, USDA OPS, HHS OPS, DOE OPS, DHS NICC, EPA EOC. Notified FDA EOC, NuclearSSA, FEMA NWC and FEMA NRCC SASC via email. * * UPDATE FROM ALLEN DURACHER TO VINCE KLCO ON 7/28/17 AT 2142 EDT * * * The ALERT was terminated on 7/28/17 at 1819 PDT. The containment atmosphere was restored to normal conditions. The nitrogen source was isolated. The cause of the nitrogen leak into containment is under investigation. The licensee will notify the NRC Resident Inspector. The licensee has notified the State of California and the local authorities. The licensee plans to issue a press release. Notified the R4DO (Hay), NRR EO (Miller), IRD MOC (Grant). Notified the DHS SWO, FEMA OPS, USDA OPS, HHS OPS, DOE OPS, DHS NICC, EPA EOC. Notified FDA EOC, NuclearSSA, FEMA NWC and FEMA NRCC SASC via email.
ENS 52840	4 July 2017 19:33:00	Bwx Technologies, Inc.	NRC Region 2	On July 4, 2017 at 1533 (EDT) it was identified that two desiccant filters serving a dry train ventilation system on a uranium processing glovebox line contained a uranium compound. The two containers were located within close proximity to one another, but were separated during maintenance activities associated with the equipment prior to knowledge of the uranium mass presence. This was assumed to be a non-uranium-bearing system and there were no documented controls in the Integrated Safety Analysis to prevent accumulations. The system was not included in typical duct surveys to identify such accumulations. Uranium processing operations were shut down and the plant is in the summer shutdown outage. There was no immediate risk of criticality or threat to the safety of workers or the public as a result of this event. Security is controlling access to the area and the area will remain shutdown. The initial 10 CFR 70 Appendix A(a)(4) 1 hour report notification was made at 1630 EDT. While making that telephone notification, at approximately 1646 EDT, the licensee communicator notified the Headquarters Operations Officer that the licensee had declared an Alert at 1556 EDT. The Alert declaration was based on a loss of control of all parameters preventing criticality for which control cannot be immediately re-established per the site's Emergency Plan. There is no release and a release is not projected. The licensee's Emergency Operations Center has been activated. The licensee will notify the NRC Resident Inspector. The licensee notified the Commonwealth of VA and local agencies. Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, DHS NICC, USDA Ops Center, EPA EOC via conference call. Notified FDA EOC, FEMA NWC, Nuclear SSA and FEMA NRCC SASC via email. * * UPDATE AT 0231 EDT ON 07/05/17 FROM CHRIS TERRY TO S. SANDIN * * * The licensee has completed preliminary NCS (Nuclear Criticality Safety) calculations based on conservative theoretical analysis and concluded that vessel no. 1, which has the higher loading of material, could achieve a k-effective >1 if conditions were changed, Vessel no. 2 would remain sub-critical under all conditions. The licensee will reconvene their technical staff in the morning to determine what controls could be applied to the higher loaded vessel to evaluate two possible options; the first option is to characterize the material in the sub-critical vessel no. 2 for a better informed NCS analysis of the higher loaded vessel no.1 and the second option is to poison the higher loaded vessel no. 1. The situation remains stable and the licensee continues to restrict access to the RTR Processing Area. Notified R2DO (Heisserer), NMSS (Moore), IRD (Stapleton) and NMSS Events Notification and Fuels Group via email. * * UPDATE AT 0938 EDT ON 07/05/17 FROM ROBERT JOHNSON TO S. SANDIN * * * The licensee is still reviewing the NCS calculations to identify the appropriate course of action and will reconvene the technical staff at 1300 EDT. Following this meeting, additional surveys of the area will be performed. Notified R2DO (Heisserer), NMSS (Moore), IRD (Stapleton) and NMSS Events Notification and Fuels Group via email. * * UPDATE AT 1437 EDT ON 7/5/17 FROM ROBERT JOHNSON TO JEFF HERRERA * * * The Licensee is reporting no change in status they are still in an Alert condition. The licensee reported that the density of the desiccant is being re-evaluated. It is expected that actual density is less than initial assumed density which is favorable. The net effect should be to reduce the estimated grams inside the unit. Reduced estimated grams will improve the safety margin and assist the recovery process. Additional calculations and modeling is being conducted and more information is expected at a licensee discussion meeting at 1600 EDT. The Emergency Operations Center remains staffed at this time. The NRC Resident Inspector has been notified. Notified R2DO (Heisserer), NMSS (Moore), IRD (Grant) and NMSS Events Notification and Fuels Group via email. * * UPDATE AT 1954 EDT ON 7/5/2017 FROM ROBERT JOHNSON TO MARK ABRAMOVITZ * * * On July 5, 2017 at 1857 (EDT) BWXT LOG-Lynchburg downgraded form an Alert status. Based on a conservative estimate of U-235 mass and an accurate characterization of the desiccant material involved, Nuclear Criticality Safety (NCS) has determined that a criticality is highly unlikely. Updated evaluations based on as-found conditions and technical information provided by the system manufacturer demonstrated the maximum amount of U-235 in system #1 and system #2. Current NCS controlled parameters in place are mass, moderation, spacing, and container geometry. NCS has determined that the worst case K-adjusted is below the normal license limit. Based on this information, there was no immediate risk of criticality or threat to the safety of workers or the public as a result of the event. Access to the area remains restricted under the control of Security and the Emergency Operations Center. The licensee will notify the NRC Resident Inspector. Notified R2DO (Heisserer), NMSS (Moore), IRD (Grant) and NMSS Events Notification, Fuels Group (via email). Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, DHS NICC, USDA Ops Center, EPA EOC via conference call. Notified FDA EOC, FEMA NWC, Nuclear SSA and FEMA NRCC SASC via email.
ENS 52621	18 March 2017 15:19:00	Turkey Point	NRC Region 2	Alert declared at 1119 EDT 3/18/17 based on EAL H.A.2 - Fire or Explosion affecting plant safety systems. Fire alarms in the Unit 3 4kV switchgear rooms resulting in a loss of the 3A 4kV bus and trip of all three Reactor Coolant Pumps. The reactor tripped and was stabilized in Mode 3. No actual fire was observed. The 3A 4kV is deenergized. The 3B Reactor Coolant Pump was restarted for forced circulation. All other safety systems functioned as required. A refueling outage was scheduled to begin on 3/20/17. All control rods fully inserted on the reactor trip. Decay heat is being removed using feedwater and steam generator atmospheric steam dumps. One person was injured with a minor burn and possible sprained ankle and was taken to a local hospital. The licensee notified the NRC Resident Inspector. Notified DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA (e-mail), NWC (e-mail), NNSA (e-mail), and NRCC SASC (e-mail). * * UPDATE AT 1426 EDT ON 3/18/2017 FROM DAN HAGARDY TO BETHANY CECERE * * * Unit 3 was determined by the Emergency Coordinator to be in a safe and stable condition, the Emergency Plan personnel at the Technical Support Center and Emergency Operations Facility were no longer required for support, the Operations Support Center was staffed for recovery efforts, and plant personnel were sufficient and capable for continuing mitigation efforts. Investigation of the fault on the 3A 4kV bus is ongoing. Based on the above conditions, the Alert was exited at 1420 hours (on 3/18/2017). The injured electrician was taken to an offsite hospital to treat minor burns and possible sprained ankle. The licensee notified the NRC Resident Inspector. Notified the R2DO (Ehrhardt), NRR EO (Miller and King), IRD MOC (Stapleton), DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA (e-mail), NWC (e-mail), NNSA (e-mail), and NRCC SASC (e-mail).
ENS 52527	2 February 2017 01:38:00	Quad Cities	NRC Region 3	On February 1, 2017, at 1929 hours (CST), a fire was discovered on the Unit 2 Main Control Room panel 902-3 in the 3E ERV/ADS valve switch. A reactor SCRAM was not required. No automatic isolations/actuations occurred. The fire was extinguished at 1932 and the reactor remained at 100% power. An Alert was declared at 1938 (CST). The initiation of the event was attempting to change a light bulb. The cause of the event is under investigation. The Senior Resident Inspector has been notified of the event. The licensee entered a 14 day Technical Specification Action statement as a result of the damage to the switch. Notified DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA, NNSA (e-mail), and NRCC SASC (e-mail). * * UPDATE AT 0040 EST ON 2/2/17 FROM DAVID KNEPPER TO JEFF HERRERA * * * Notified that the Alert was terminated at 2336 CST on 2/1/17. The licensee stated that the fire was extinguished and an extent of condition walkdown did not identify any additional equipment damage as a result of the fire. The licensee will be issuing a press release. The licensee will be notifying the NRC Resident Inspector. Notified the R3DO (Duncan), IRD MOC (Gott), NRR EO (Miller), DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA, NNSA (e-mail), and NRCC SASC (e-mail).
ENS 52435	15 December 2016 11:10:00	Palo Verde	NRC Region 4	The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73. During a scheduled surveillance test run of the PVNGS (Palo Verde Nuclear Generating Station) Unit 3 'B' Train Emergency Diesel Generator, there was a catastrophic failure of a piston to include crankcase damage and diesel trip. The Emergency Plan has been entered and an ALERT was declared at 0410 (MST) on 12/15/16 based on an explosion resulting in visible damage to a safety system required for safe shutdown. The cause of the failure is unknown at this time. PVNGS Fire Department responded and no fire was observed. Unit 3 remains on line at 100% power. No other safety functions are impacted. No personnel injuries occurred. The unit is in a ten day technical specification on an emergency diesel generator being inoperable. The licensee notified the NRC Resident Inspector. Notified DHS, DOE, EPA, FEMA, NICC, USDA, HHS, FDA, NSSA, Mexico, and OIP (Skeen). * * UPDATE AT 0947 EST ON 12/15/2016 FROM MICHAEL GOODRICH TO MARK ABRAMOVITZ * * * This serves as the notification of the termination of Alert HA2.1 declared at 0410 MST at Palo Verde Nuclear Generation Station. The event terminated at 0636 MST. The licensee will notify the NRC Resident Inspector. Notified R4DO (Keller), NRR EO (Miller), IRD (Stapleton), DHS, DOE, EPA, FEMA, NICC, USDA, HHS, FDA, NSSA, Mexico, and OIP (Skeen).
ENS 52340	1 November 2016 22:43:00	Farley	NRC Region 2	At 1743 CDT on 11/1/16, readings were obtained that indicated ammonia above IDLH (Immediately Dangerous to Life and Health) values in the Unit 1 Auxiliary Building and an Alert was declared by the Emergency Director. The plant is stable with Unit 1 at 2% power. Unit 2 is at 100% power (and stable). The site is currently investigating to determine the source and ventilate the area." The licensee has informed the NRC Resident Inspector. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer, EPA EOC, FEMA National Watch Center (email), FDA EOC (email), Nuclear SSA (email). * * UPDATE FROM BLAKE MITCHELL TO STEVEN VITTO ON 11/02/2016 AT 0443 EDT * * * The following is the Emergency Preparedness 8-hour report for the Plant Farley ALERT declaration. An ALERT was declared at 1743 CDT on November 1, 2016, based on Emergency Action Level (EAL) HA3 (Release of toxic, asphyxiant, or flammable gases within vital areas which jeopardizes operation of systems required to maintain safe operations or establish or maintain safe shutdown) due to an ammonia discharge into the Auxiliary Building. Farley Unit 1 was in Mode 2 at 2 percent power and Unit 2 was in Mode 1 at 100 percent power throughout the event. Actions completed during and leading up to termination from the event included walkdown of the area to locate the ammonia source, and isolating the ammonia source while atmospheric monitoring was performed in all affected and adjacent areas. Installation of additional ventilation fans was completed. This event has been entered into the Farley Corrective Action Program under Condition Report 10293519 (Ammonia levels in 100 Feet Radside). A review of the Alert classification has determined that the classification was timely and accurate. All required notifications were completed accurately and in a timely manner. The ERO (Emergency Response Organization) notification system functioned as expected and all emergency response facilities were activated in a timely manner. There were no missing or injured personnel during the event. There is no evidence of tampering or sabotage of plant equipment leading to this event. At 2202 CDT on 11/1/2016, the ammonia source was identified as Valve N1P20V913. At 2228 CDT, the ammonia source was isolated. Final assessment of the Auxiliary Building showed that the ammonia levels were less than 5 ppm. It was determined that a deficiency in the valve component was the cause of the ammonia leak. The Alert was terminated on 11/1/2016 at 2340 CDT. The Licensee has notified the NRC Resident Inspector. Notified R2DO(Ernstes), IRD (Stapleton), NRR EO (Miller). Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer, EPA EOC, FEMA National Watch Center (email), FDA EOC (email), Nuclear SSA (email).
ENS 52082	13 July 2016 00:39:00	Brunswick	NRC Region 2	At approximately 2039 EDT, there was smoke in the Service Water Building with the trip of the 2C service water pump. In accordance with plant procedures, unit-2 was ramped down to 70 percent power and the "Alert" was declared. EAL (emergency action level) SA8.1 was entered for damage with degraded performance including visible damage to the service water pump. Service water pressure was eventually restored by running both the 2A and 2B service water pumps. At 2118 EDT, the site exited the "Alert" because service water pressure had been restored. The licensee notified the NRC Resident Inspector. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer, EPA EOC, FEMA National Watch Center (email), FDA EOC (email), Nuclear SSA (email). * * UPDATE ON 7/14/16 AT 1456 EDT FROM LEE GRZECK TO DONG PARK * * * The initial notification should read: At approximately 2035 EDT, there was smoke in the Service Water Building with the trip of the 2C conventional service water pump. In accordance with plant procedures, unit-2 was ramped down to 70 percent power and the 'Alert' was declared at 2039 EDT. EAL (emergency action level) SA8.1 was entered for fire/smoke damage with degraded performance including visible damage to the service water pump. Service water pressure was eventually restored and the plant was stabilized. At 2118 EDT, the site exited the 'Alert' when service water pressure had been restored, and the fire was confirmed out (i.e., no reflash within 30 minutes). The licensee notified the NRC Resident Inspector. Notified R2DO (Rich).
ENS 52046	27 June 2016 15:50:00	Dresden	NRC Region 3	At 1050 CDT, (on 6/27/16), an Alert was declared at Dresden Unit 3. The Alert is due to Unit 3 experiencing a fire in the HPCI (High Pressure Coolant Injection) system, auxiliary oil pump motor. The fire is out. This notification is being made per 10 CFR 50.72(a)(1)(i). Dresden Unit 3 is stable and continues to operate at 100% power and HPCI has been declared inoperable. There is no impact on Dresden Unit 2. The licensee has notified the NRC Resident Inspector Notified DHS SWO, FEMA, USDA, HHS, DOE, DHS NICC, EPA, and FEMA National Watch Center, FDA EOC, NuclearSSA via email only. * * UPDATE FROM MICHAEL HAYES TO JOHN SHOEMAKER AT 1433 EDT ON 6/27/16 * * * Termination of MA-5 (Alert). Fire in HPCI room verified extinguished. HPCI system is inoperable. (Technical Specification) TS 3.5.1 condition G in effect, per 10 CFR 50.72(c)(i) - notification of termination of Alert. Dresden Unit 3 terminated the Alert at 1319 CDT, on 6/27/16. Dresden Unit 3 continues to operate at 100% power. The licensee will notify the NRC Resident Inspector. Notified R3DO (Kunowski), NRR (Miller), IRD (Grant), DHS SWO, FEMA, USDA, HHS, DOE, DHS NICC, EPA, and FEMA National Watch Center, FDA EOC, NuclearSSA via email only. * * UPDATE FROM MICHAEL CSERNAK TO JOHN SHOEMAKER AT 1755 EDT ON 6/27/16 * * * At 1042 (CDT) on 6/27/16, the U3 High Pressure Coolant Injection (HPCI) system was declared inoperable after the Auxiliary Oil Pump failed. This event is reportable per 10CFR50.72(b)(3)(v)(D); any event or condition that at the time of discovery could have prevented fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident. This is an eight hour reporting requirement. The Dresden NRC Resident (Inspector) has been notified. Notified R3DO (Kunowski).
ENS 51770	6 March 2016 20:20:00	Oconee	NRC Region 2	At 1512 EST, a fire/explosion occurred in the Unit 1 Main Transformer which resulted in a reactor trip. At 1520 EST, the licensee declared a Notification of Unusual Event. Offsite assistance was requested. At 1633 EST, smoke and flame were no longer visible. Fire brigade personnel were applying additional foam to prevent a re-flash. No personnel injuries occurred. Offsite assistance was requested with three local fire departments responding. All rods inserted on the trip. Steam generator feed is by the normal path. The plant is in its normal shutdown electrical lineup. The licensee has notified state and local authorities and the NRC Resident Inspector. Notified DHS SWO, FEMA, and DHS NICC. Notified FEMA NWS and Nuclear SSA via email. * * UPDATE FROM DAVID HALE TO HOWIE CROUCH AT 1711 EST ON 03/06/16 * * * At 1658 EST, the licensee declared an Alert based on EAL Alert A.1. The cause of entry was that the fire damaged an overhead power line that supplies emergency power to all three units at Oconee. Offsite power is still available to all units. At 1708 EST, the fire is declared out. The licensee has notified the NRC Resident Inspector. Notified DHS SWO, FEMA, DHS NICC, USDA, HHS, DOE, and EPA. Notified FEMA NWS, FDA and Nuclear SSA via email. * * UPDATE FROM DAVID HALE TO HOWIE CROUCH AT 1805 EST ON 03/06/16 * * * The licensee made notification of the RPS actuation as a result of the transformer fault. The licensee has notified the NRC Resident Inspector. Notified R2DO (Sykes). * * UPDATE FROM DAVID HALE TO HOWIE CROUCH AT 2026 EST ON 03/06/16 * * * At 2016 EST, the licensee terminated all emergency declarations. The licensee has notified the NRC Resident Inspector. Notified R2DO (Sykes), IRD (Gott), NRR EO (Morris), DHS SWO, FEMA, DHS NICC, USDA, HHS, DOE, and EPA. Notified FEMA NWS, FDA and Nuclear SSA via email.
ENS 51715	7 February 2016 18:26:00	Brunswick	NRC Region 2	At 1346 EST the licensee reported that at 1326, Brunswick Unit 1 declared an Alert under EAL HA 2.1 due to an explosion/fire in the Balance of Plant 4 kV switchgear bus area. Prior to the Alert declaration, the operators initiated a manual SCRAM due to an unexpected power decrease from 88% to 40%. The licensee has visually verified that there is no ongoing fire and is investigating the initial cause of the event. Offsite power is available to the site, but EDGs 1 and 2 are running and supplying Unit 1 loads. The MSIVs shut and HPCI/RCIC are being used to maintain vessel level. At 1412 EST, NRC decided to remain in Normal Mode. At 1704 EST the licensee reported the following: At 1313 hours Eastern Standard Time (EST) a manual reactor scram was initiated due to loss of both recirculation system variable speed drives as a result of an electrical fault. At this time, a Startup Auxiliary Transformer (SAT) experienced a lockout fault; interrupting offsite power to emergency buses 1 and 2. Emergency Diesel Generators (EDGs) 1, 2, 3, and 4 automatically started and EDGs 1 and 2 synchronized to emergency buses 1 and 2 per design. The power interruption resulted in closure of the Main Steam Isolation Valves, per design. The manual scram also resulted in closure of Group 2, 6, and 6 Containment Isolation Valves. The Reactor Core Isolation Cooling (RCIC) system was manually started and is being used to control reactor water level. The High Pressure Coolant Injection (HPCI) system was manually started and is being used for pressure control. The Plant response to the event was per design. Unit 2 is not directly affected by the event, however, due to the shared electrical distribution system is in a Technical Specification Action statement due to the Inoperable Unit 1 SAT. The public health and safety is not impacted by this event. At 1751 EST, the licensee reported that the emergency declaration had been downgraded to an Unusual Event at 1730 because the plant no longer meets the criteria for an Alert, but does meet the criteria for an Unusual Event due to a "loss of all offsite power to Emergency 4 kV buses E1 (E3) and E2 (E4) for greater than or equal to 15 minutes." The NRC Resident Inspector has been notified. The licensee has notified the State and Local governments. Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email). * * UPDATE FROM MARTY IRWIN TO DANIEL MILLS AT 1825 ON 2/07/16 * * * At 1814 EST the emergency declaration was terminated because offsite power was restored. The NRC Resident Inspector has been notified. The licensee has notified the State and Local governments. Notified R2DO (Musser), NRR EO (Morris), IRD MOC (Stapleton), R2RA (Haney), NRR ET (Lubinski), NRR ET (Dean), DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).
ENS 51660	17 January 2016 10:29:00	Westinghouse Electric Corporation	NRC Region 2	A plant employee discovered a fire in the mechanical factory strap plating room and activated the fire alarm. At 0529 EST, the licensee notified the Richland County Fire Department. The fire was extinguished and the Alert declaration was terminated at 0709 EST. No radioactive materials were involved and no injuries were reported. The licensee notified the State and R2 (Michel). Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email). * * RETRACTION FROM NANCY PARR TO HOWIE CROUCH AT 1726 EST ON 1/21/16 * * * Upon further review and investigation by the licensee, it was determined that the fire was extinguished within 15 minutes. As such, no Alert declaration was required. Based on these facts, the licensee has retracted this event notification. The licensee has notified their R2 Senior PM (Carmen Riviera-Crespo). Notified R2DO (McCoy). Notified NMSS (Erlanger, Moore) and IRD (Stapleton, Gott) via email.
ENS 51513	4 November 2015 16:33:00	Millstone	NRC Region 1	At 1133 EST on 11/4/15, an Alert was declared due to a fire in the 'A' Emergency Diesel Generator (EDG) enclosure. Fire caused damage to the safety related EDG and was declared inoperable. The fire is out, and off-site assistance was not necessary. A fire watch has been stationed, and no personnel injuries were reported. The licensee has notified the NRC Resident Inspector. Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email). * * UPDATE ON 11/4/15 AT 1449 EST FROM HERB SEARLE TO DONG PARK * * * At 1446 EST on 11/4/15, Millstone Unit 3 terminated the Alert declaration following satisfactory atmospheric samples at the site boundary and notifying the State of Connecticut. The licensee will notify the NRC Resident Inspector. Notified R1DO (Rogge), NRR EO (Morris), and IRD (Grant). Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).
ENS 51455	6 October 2015 01:15:00	Crane	NRC Region 1	At 2115 (EDT) on 10/05/15, an Alert was declared due to a fire in the Auxiliary building affecting DC-P-1A (Decay closed cooling pump 1A) and A-Train safety equipment. The fire is out. The licensee reported the fire was extinguished at approximately 2201 EDT. The fire did not hamper operations personnel responding to the fire. Offsite fire assistance was requested. The NRC Resident Inspector will be notified. The licensee notified the York Haven Power Station, PEMA (Pennsylvania Emergency Management Agency), and the counties of Cumberland, Lebanon, Lancaster, York, and Dauphin. Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email). * * UPDATE AT 0015 EDT ON 10/06/15 FROM JAMES CREIGHTON TO S. SANDIN * * * The licensee is terminating the Alert at 0009 EDT on 10/06/15 based on the following: At 2115 (EDT) on 10/05/15, an Alert (HA3) was declared due to a fire in the Decay Closed Cooling Water Pump '1A' motor and breaker. The fire was extinguished at 2201 (EDT). Following inspection by electrical maintenance the 'P' 480V bus was re-energized at 2305 (EDT) and restoration of previously running loads is in progress. Station (TMI) is in a 72-hour LCO for repairs to the Decay Closed Cooling Water Pump '1A' (DC-P-1A). TMI (Three Mile Island) is terminating the event based upon the above information. The licensee notified the York Haven Power Station, PEMA (Pennsylvania Emergency Management Agency), and the counties of Cumberland, Lebanon, Lancaster, York, and Dauphin. The licensee will issue a press release. The licensee informed the NRC Resident Inspector. Notified R1DO (Bickett), NRR (Howe) and IRD (Gott). Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).
ENS 51414	21 September 2015 01:19:00	Honeywell International, Inc.	NRC Region 2	At 2019 CDT, the licensee declared an Alert due to a truck fire, outside of the protected area, that lasted greater than 15 minutes. The truck was awaiting entry to the plant to deliver materials when the truck driver noticed smoke emanating from the dash. He attempted to put out the fire using a handheld extinguisher but was unsuccessful so he left the vehicle and notified licensee employees. The licensee contacted the Massac County and Metropolis Fire Departments who responded to the site and put out the fire. The cab of the truck is considered a total loss but the trailer was not affected by the fire and remains intact. The licensee is awaiting clearance from the fire department to enable them to take swipes of the trailer to verify no contamination exists. At 2055 CDT, once they determined the fire was out, the licensee downgraded the Alert to a plant emergency. The licensee notified local authorities and the Illinois Emergency Management Agency of the event. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer and the EPA EOC. * * UPDATE FROM SEAN PATTERSON TO HOWIE CROUCH AT 2329 EDT ON 09/20/15 * * * At 2216 CDT, the licensee declared all clear for the event when the swipes taken on the trailer did not indicate a spread of contamination. Notified IRD (Gott), NMSS EO (Gonzalez) and R2DO (Sykes) via email.
ENS 51283	1 August 2015 22:55:00	Honeywell International, Inc.	NRC Region 2	At 1755 CDT on 08/01/15, Honeywell declared an ALERT and activated their Emergency Response Team (ERT) based on an on-going UF6 release. The source of the leak is from a tell-tale valve installed during maintenance activities for Condenser #4 in the Feed Materials Building (FMB) 6th floor. The licensee employed a mitigating strategy using CO2 inside the FMB and spray towers external to the FMB. A Protective Action Recommendation (PAR) order was issued for local residents to shelter in-place although there was no indication of an offsite release. At 2035 CDT the licensee reported that the leak was isolated by installing a pipe plug into the threaded tell-tale line. The PAR was lifted at 1948 CDT. There are no worker injuries with all personnel accounted for. The licensee plans to issue a press release. Notified other FEDS (DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, and FDA EOC, FEMA NWC and NuclearSSA via email) * * UPDATE AT 2240 EDT ON 08/01/15 FROM MARK WOLF TO REGION 2 INCIDENT RESPONSE CENTER * * * At 2032 CDT on 08/01/15, the ALERT was downgraded to a Plant Emergency based on mitigation status and visual observation of the affected area. * * UPDATE AT 0032 EDT ON 08/02/15 FROM MARK WOLF TO REGION 2 INCIDENT RESPONSE CENTER * * * The licensee will be remaining in the plant emergency mode while monitoring the vessel under vacuum conditions. The decision to replace the flange will be made by the licensee in the morning following monitoring of the vacuum conditions. Notified the R2DO (Hopper). Notified other FEDS (DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, and FDA EOC, FEMA NWC and NuclearSSA via email)
ENS 50956	5 April 2015 19:37:00	Limerick	NRC Region 1	An Alert was declared due to a fire in a Unit 2 Division 2 Safeguard (250 volt) DC Motor Control Center. This has made the High Pressure Core Injection system inoperable and unavailable. The fire is out. The emergency response organization has been activated and investigation / repair planning will commence. Unit 2 is stable with no other system affects. The fire was extinguished by on-site personnel. No off-site responders were required. The Reactor Core Isolation Cooling system remains operable. A Fire Watch has been stationed to monitor for fire reflash. There were no injuries resulting from this event. There was no effect on Unit 1. The licensee notified the NRC Resident Inspector and State and local government agencies. Notified the following organizations: DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, FDA EOC, FEMA NWC, and Nuclear SSA. * * UPDATE FROM DAN BOYLAN TO DONALD NORWOOD AT 1812 EDT ON 04/05/15 * * * The Alert was terminated at 1742 EDT. The licensee notified the NRC Resident Inspector and State and local government agencies. Notified R1DO (Kennedy), IRD (Gott), and NRR EO (Morris). Notified the following organizations: DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, FDA EOC, FEMA NWC, and Nuclear SSA.
ENS 50510	6 October 2014 18:36:00	Wolf Creek	NRC Region 4	At 1336 CDT, Wolf Creek declared an Alert due to a fire. The fire in the "B" Emergency Diesel Generator potential transformer was extinguished using a portable CO2 fire extinguisher. Plant personnel were exposed to the smoke and were evaluated with no injuries noted. The plant continued to operate at 100% power throughout the event. The licensee notified the NRC Resident Inspector, State of Kansas Division of Emergency Management, and the Coffey County Sheriff Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA OPS Center, EPA EOC, FDA EOC, and Nuclear SSA via email. * * UPDATE AT 1648 EDT ON 10/6/2014 FROM AARON LUCAS TO MARK ABRAMOVITZ * * * The Alert was terminated at 1542 CDT because the fire had been terminated within fifteen minutes and a walkdown of the area was clear. The licensee notified the NRC Resident Inspector. Notified the R4DO (Allen), IRD (Grant), NRR (Lee), DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA OPS Center, EPA EOC, FDA EOC, and Nuclear SSA via email..
ENS 49988	2 April 2014 18:40:00	Quad Cities	NRC Region 3	Quad Cities Unit 2 Alert Classification (HA3) Due to Fire. On April 2, 2014, at 1340 CDT, an ALERT was declared due to a fire in the Unit 2 turbine building. Prior to declaring the ALERT, Unit 2 was manually scrammed at 1302 CDT. All control rods inserted and all automatic isolations actuated as designed. The Main Steam Isolation Valves were manually closed. The fire has been extinguished. Unit 2 is currently in Hot Shutdown. The cause of the event is under investigation. Unit 1 remains at 100% power. The Senior Resident Inspector has been notified of the event. Unit 2 is still being supplied from off-site power and is in a normal shutdown electrical lineup with the exception of Bus 29-1 (480 VAC safety bus) that was deenergized. One Unit 2 emergency diesel generator is inoperable due to the loss of power to its cooling water pump. The licensee has notified the State and local agencies. Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA OPS Center, EPA EOC, FDA EOC, and Nuclear SSA via email. * * UPDATE FROM MIKE HAYES TO DONG PARK AT 2252 EDT ON 04/02/2014 * * * At 2132 CDT on April 2, 2014, the licensee terminated the Unit 2 Alert declaration. Unit 2 is stable in Mode 3 (Hot Shutdown). Unit 2 is proceeding to Mode 4 (Cold Shutdown) on shutdown cooling. The licensee notified the NRC Resident Inspector and the State emergency agencies. Notified the IRD (Gott), R3DO (Passehl), and NRR EO (McGinty). Notified DHS SWO, DOE Ops Center, FEMA Ops Center, HHS Ops Center, NICC Watch Officer, USDA OPS Center, EPA EOC, FDA EOC, and Nuclear SSA via email.
ENS 49937	20 March 2014 18:05:00	Fermi	NRC Region 3	At 1405 EDT on 3/20/14, Fermi Nuclear Station declared an Alert due to a fire in the lagging of an Emergency Diesel Generator Turbo Charger. The Alert notification was based on EAL HA02, fire or explosion affecting the operability of plant safety systems required to establish or maintain safe shutdown. The fire in the EDG-11 turbocharger lagging occurred during testing. The fire was extinguished using handheld CO2 fire extinguishers and a reflash watch was set. EDG-11 has been removed from service and damage is minimal. The plant is shutdown in Mode 4 for Refueling Outage 16. All parameters associated with the reactor are stable. RHR Pump D remains in service in Shutdown Cooling and is unaffected by the EDG-11 fire. There has been no other impact on the plant electrical systems or shutdown cooling and Fermi Nuclear Station remains in an Alert pending further evaluation. The NRC remained in Normal Mode. The licensee has informed the NRC Resident Inspector. Notified DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, and FDA. Notified NuclearSSA via email only. * * UPDATE FROM SAM HASSOUN TO JOHN SHOEMAKER AT 1535 EDT ON 3/20/13 * * * At 1359 (EDT on 3/20/14), with the plant in Mode 4, a fire was confirmed on Emergency Diesel Generator (EDG)-11 turbocharger. At 1402, the fire was extinguished with a CO2 extinguisher. An ALERT was declared at 1405 and Assembly and Accountability was ordered by the Emergency Director. The Assembly and Accountability was completed satisfactorily by 1441. The fire was from oil soaked lagging on the engine turbocharger. The insulation was removed and the engine exhaust header was inspected. The damage was limited to only the lagging. The room has been ventilated using the Engine room fans and has been cleared of all of the smoke. The Emergency Director terminated the event at 1532 (EDT on 3/20/14). The Resident Inspector has been notified. Notified R3RA (Pederson), NRR (Dorman), R3DO (Lara), IRD (Grant), IRD (Morris), DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA, and Canadian Nuclear Safety Commission (Tennant). Notified NuclearSSA via email only.
ENS 49742	18 January 2014 15:16:00	Harris	NRC Region 2	(At 1016 EST, an) Alert (was declared) based on EAL # HA 2.1 Fire or explosion resulting in either: visible damage to any table H-1 structure or system/component required for safe shutdown of the plant, or control room indication of degraded performance of any safe shutdown structure, system, or component within any table H-1 area. Fire in 480V bus 1D2. Reactor was manually tripped 480 VAC safety related transformer fire in switchgear room. Plant reduced power and tripped the reactor manually. Reactor trip was uncomplicated. Fire was extinguished when the 480 VAC bus was de-energized. The licensee has notified the NRC Resident Inspector, the State of North Carolina, and other local authorities. Notified DHS SWO, DOE Ops Center, FEMA Operations Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, and NuclearSSA via e-mail. * * UPDATE FROM JOEL DUHON TO JOHN SHOEMAKER AT 1602 EST ON 1/18/14 * * * Harris Nuclear Plant secured from the Alert at 1551 EST, on 1/18/14. The plant is stable, the fire is out, the TSC and EOF have been secured and plant recovery has been transferred to the outage control center. There were no personnel injuries or radiological releases. Radiation monitor RM-*1TS-3653C (Technical Support Center Radiation Monitor) is out of service. The licensee has notified the NRC Resident Inspector. Notified the R2DO (King), R2RA (McCree), NRR (Leeds), IRD MOC (Grant), OPA (Brenner), NRR EO (Lee) Notified DHS SWO, DOE Ops Center, FEMA Operations Center, HHS Ops Center, NICC Watch Officer, USDA Ops Center, EPA EOC, and NuclearSSA via e-mail.
ENS 49544	17 November 2013 20:17:00	Paducah Gaseous Diffusion Plant	NRC Region 2	On 11/17/13, at 1417 CST, an alert was declared at the Paducah Gaseous Diffusion Plant due to an apparent tornado strike/severe weather event. Multiple facilities were damaged with no injuries and no hazardous material released. No damage to the security fence was observed and the protected area remained secured during the event. This event is reportable under 10 CFR 76.120(a)(4) where an emergency condition has been declared an Alert. NRC Branch Chief has been notified. PGDP has no NRC Resident Inspector. PGDP Event Report No. PAD-2013-08. Notified DHS, FEMA, USDA, HHS, DOE, NICC, EPA, and Nuclear SSA via email. * * UPDATE FROM DAVID PETTY TO CHARLES TEAL AT 1746 EST ON 11/17/13 * * * On 11 /17/13, at 1638 CST, the Paducah Gaseous Diffusion Plant decided to issue press releases describing the Alert issued by the plant that afternoon. The Alert was declared due to an apparent tornado strike/severe weather event on 11/17/13 at 1417 CST. This event is reportable under Criteria P in Appendix D of USEC procedure CP2-RA-RE 1 030 as any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made. NRC Branch Chief has been notified. PGDP has no resident inspector. PGDP Event Report No. PAD-2013-08. Notified RA (McCree), NMSS EO (Damon), R2DO (Desai), IRD (Gott), NMSS (Haney), DHS, FEMA, USDA, HHS, DOE, NICC, EPA, and Nuclear SSA via email. * * UPDATE FROM DAVID PETTY TO CHARLES TEAL AT 1910 EST ON 11/17/13 * * * The Alert was terminated at 1806 CST on 11/17/13 after a complete security check of the site perimeter and a compilation of the damages sustained by the site. There were no personnel injuries and no releases (HAZMAT or radiological). Notified RA (McCree), NMSS EO (Damon), R2DO (Desai), IRD (Gott), NMSS (Haney), DHS, FEMA, USDA, HHS, DOE, NICC, EPA, and Nuclear SSA via email.
ENS 49249	8 August 2013 07:05:00	Harris	NRC Region 2	The licensee reported that there was an explosion in a non-safety related electrical bus (Bus 1E2). The bus is designated as a safe shut down bus. The licensee has classified this event as an Alert based on an EAL entry condition of "an explosion of sufficient force to damage permanent structures or equipment within the Protected Area." The licensee is still investigating what loads come off this bus but no safety-related loads have been identified at this time. The plant is currently stable at 92% power. Power was reduced due to the loss of moisture separator reheaters on the secondary side as a result of this event. There is no ongoing fire as a result of the bus explosion. No personnel were injured. No damage to other equipment has been identified at this time. The licensee has notified state and local authorities and the NRC Resident Inspector. Notified DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email. NRC PAO (Brenner) notified. * * UPDATE AT 0404 EDT ON 8/8/13 FROM TYLER HALYE TO MARK ABRAMOVITZ * * * Auxiliary bus 1E2 (safe shutdown equipment bus) is de-energized due to the explosion. The Alert was declared due to the explosion affecting safe shutdown equipment." The licensee also noted that the event was initially classified as an Unusual Event at 0234 EDT and then upgraded to an Alert classification at 0305 EDT when the bus was determined to supply safe shutdown equipment. The licensee has notified the NRC Resident Inspector. * * UPDATE AT 0453 EDT ON 8/8/13 FROM TYLER HALYE TO MARK ABRAMOVITZ * * * No offsite assistance was requested during this event. The licensee verified that there was no fire. It was noted that the licensee is in Technical Specification Action Statement 3.8.1.1 for the "B" Emergency Diesel Generator being out of service. The EDG is out of service due to loss of power to the "C" and "D" air compressors. The licensee was uncertain if the loss of these air compressors was related to the event. The licensee has notified the NRC Resident Inspector. R2DO (Shaeffer) and NRR EO (Hiland) notified. * * UPDATE AT 0546 EDT ON 8/8/13 FROM SHANNON JONES TO MARK ABRAMOVITZ * * * The licensee terminated the Alert declaration at 0533 EDT based upon no fire at Bus 1E2 and verification that Bus 1E2 is de-energized and disconnected from all electrical systems. The licensee remains at 92% power. The only noted safety related equipment that was impacted is the "1B" Emergency Diesel Generator which has been declared inoperable due to loss of power to associated air compressors "1C-SB" and "1D-SB. The licensee has notified the NRC Resident Inspector. R2DO (Shaeffer), NRR EO (Hiland) and IRD MOC (Morris) notified. Notified DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email. NRC PAO (Brenner) notified. * * UPDATE FROM TIM ENGLISH TO HOWIE CROUCH AT 1347 EDT ON 8/10/13 * * * It has been determined that operability of the 1B Emergency Diesel Generator (EDG) was not affected by the damage to 480 volt auxiliary bus 1E2. The 1C and 1D starting air compressors for 1B EDG did not lose power and thus the 1B EDG was operable. The NRC Resident Inspector has been notified. Notified R2DO (Shaeffer).
ENS 49232	3 August 2013 10:20:00	Farley	NRC Region 2	(On August 3, 2013, at 0520 CDT), Farley Unit 1 declared an ALERT emergency based on (EAL) HA3, 'Release of Toxic, Asphyxiant, or Flammable Gas'. This was due to a tagout of the CO2 Fire Protection System, which resulted in an unexpected discharge of CO2 on the Unit 1 Radiation Side of the Auxiliary Building. The 100 foot elevation level on Unit 1 had an oxygen concentration below the required amount. CO2 has been isolated at the source tank in order to terminated the leak. No personnel have been affected. There is no radiation release in progress. ERDS has been activated. The licensee is assembling a team to enter the affected area and verify oxygen levels are within allowable limits in order to terminate the ALERT emergency. The licensee has notified the NRC Resident Inspector and the State and local organizations. Notified DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email. * * UPDATE FROM JONATHAN MCCORY TO STEVE SANDIN AT 1215 EDT ON 08/03/13 * * * Farley Unit 1 terminated from the ALERT at 1110 CDT on 8/3/13. Oxygen levels are acceptable in all areas of the plant. The CO2 tank has been isolated and is stable at 68%. Plant conditions are stable and improving and all necessary compensatory measures are in place. The licensee has notified the NRC Resident Inspector and applicable state and local authorities. Notified R2DO (King), NRR EO (Hiland), IRD (Kozal), and PAO (Couret), DHS SWO, DOE, FEMA, HHS, DHS NICC, USDA, EPA, FDA and NuclearSSA via email.
ENS 48452	29 October 2012 22:55:00	Oyster Creek	NRC Region 1	At 1855 EDT on 10/29/2012, the licensee declared a Notice of Unusual Event (NOUE) per criteria HU4 for high water level in the station intake structure of greater than 4.5 feet. At the time of the notification, water level in the intake structure was approximate 4.8 feet and slowly rising. The cause of the increased water level was due to storm surge associated with Hurricane Sandy. No other station impacts were reported at the time. The licensee continues to monitor the intake levels and ocean tides. The licensee has notified the NRC Resident Inspector and the State of New Jersey. * * ALERT UPDATE ON 10/29/2012 AT 2141 EDT FROM STEVE SERPE TO RYAN ALEXANDER * * * At 2044 EDT on 10/29/2012, the licensee escalated its emergency declaration to an Alert per criteria HA4 for high water level in the station intake structure of greater than 6.0 feet. At the time of the notification, water level in the intake structure was approximately 6.6 feet. The site also experienced a loss of offsite power event concurrent with the additional water level increase. Both emergency diesel generators started and are supplying power to the emergency electrical busses. Shutdown cooling and spent fuel pool cooling have been restored. Reactor pressure vessel level is steady at 584.7 inches. Intake levels continues to rise slowly and the licensee is monitoring. The licensee has notified the NRC Resident Inspector and the State of New Jersey. Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer, EPA EOC, and NuclearSSA via e-mail. * * UPDATE on 10/30/12 at 0414 EDT FROM GILBERT DEVRIES TO RYAN ALEXANDER * * * The licensee updated this report with an 8-hour non-emergency notification of emergency diesel generator auto-actuation due to the actual loss of off-site power event (which occurred at 2018 EDT on 10/29/2012). This event caused a valid RPS actuation with automatic containment isolations that resulted in a temporary loss of shut-down cooling to the reactor. Shutdown cooling was subsequently restored with power provided by the emergency diesel generators. The licensee has notified the NRC Resident Inspector. Notified R1DO (Caruso). * * UPDATE AT 0357 EDT ON 10/31/12 FROM GILBERT A. DeVRIES TO S. SANDIN * * * Termination of Alert. The Oyster Creek Station has terminated the Alert that was declared at 2044 (EDT) on 10/29/12 due to Intake Structure high water level greater than 6.0 ft. MSL (EAL HA4). Intake water level has returned to normal and is now below the Unusual Event EAL threshold (4.5 ft. MSL) and continues to lower. The licensee informed state and local agencies and the NRC Resident Inspector. Notified Region I IRC (Clifford), NRR (Evans), and IRD (Marshall). Notified DHS SWO, FEMA Ops Center, USDA Ops Center, HHS Ops Center, DOE Ops Center, DHS NICC Watch Officer, EPA EOC, and NuclearSSA via e-mail.
ENS 48287	7 September 2012 22:53:00	Areva Np Inc Richland	NRC Region 2	At 1553 PDT Areva Richland declared an Alert due to a fire (greater than 15 minutes) in the waste handling / packaging area within the UO2 Building. The fire was associated with a plasma cutter HEPA filter in the recirculation system. The plasma arc filter is a stand alone filter that recirculates the air into the room. The room ventilation system has two HEPA filters in series before it exhausts out of the stack. Personnel in the building evacuated when a smoke alarm activated. All personnel from the evacuated building were accounted for. The fire was confined to the plasma cutter filters and is now believed to be extinguished. Notified DHS, DOE, DHS NICC, HHS, EPA, USDA and Canada. * * UPDATE FROM CALVIN MANNING TO JOHN KNOKE AT 0036 EDT ON 09/08/12 * * * At 1609 PDT the fire was extinguished and a re-flash watch set. The ventilation system in the UO2 Building was restored. The area of the fire is quarantined off, pending further investigation. No injuries were reported and there were no offsite radiological releases. At 2135 PDT, Areva Richland exited the Alert. Notified R2DO (Lessor), IRD (Marshall), NMSS (Bjorkman), DHS, DOE, DHS NICC, HHS, EPA, USDA and Canada.
ENS 47863	26 April 2012 02:06:00	Point Beach	NRC Region 3	On April 25, 2012 at 2106 CDT, Point Beach Nuclear Plant declared an Alert under EAL HA3.1 due to toxic gas in a vital area. During a maintenance run on the plant's emergency diesel generator, diesel exhaust caused the concentration of carbon monoxide in an adjacent vital area room (Plant Instrument Air Compressor Room) to exceed OSHA IDLH (Immediately Dangerous to Life and Health) levels. The diesel was immediately secured and the room was ventilated. There were no personnel injuries and no public health and safety issues associated with this event. The licensee notified the NRC Resident Inspector. Notified DHS SWO, FEMA, USDA, DOE, DHS NICC, HHS AND EPA. * * UPDATE FROM JOHN RODGERS TO JOHN SHOEMAKER AT 0022 EDT ON 04/26/12 * * * The Alert at Point Beach was terminated at 2314 CDT on 04/25/12. The licensee notified the NRC Resident Inspector. Notified R3DO (Lara), NRR EO (Lubinski), IRD (Scott via email only). Notified DHS SWO, FEMA, USDA, DOE, DHS NICC, HHS, EPA, and Nuclear SSA (email only). * * RETRACTION FROM MARY SIPIORSKI TO CHARLES TEAL AT 1650 EDT ON 8/2/2012 * * * On April 25, 2012, at 2106 CDT, Point Beach Nuclear Plant declared an Alert under EAL HA3.1 (EN #47863) due to toxic gas in a vital area. During a maintenance run on the plant's emergency diesel generator, diesel exhaust caused the concentration of carbon monoxide in an adjacent vital area room (Plant Instrument Air Compressor Room) to exceed OSHA IDLH (Immediately Dangerous to Life and Health) levels. The diesel was immediately secured and the room was ventilated. There were no personnel injuries and no public health and safety issues associated with this event. This retraction is based on the fact that station personnel incorrectly used an Alert trigger value for toxic gas concentration that was well below the actual value which would pose an immediate danger to life and health. In a subsequent evaluation, NextEra concluded that the station used the carbon monoxide (CO) OSHA limits (OSHA Permissible Exposure Limit 8-hour time weighted average of 50 ppm to 200 ppm short term exposure limit) that are normally monitored for confined spaces. The recommended CO limit value of 1200 ppm was determined to be the correct IDLH for the plant air compressor room, the actual reading in the room was 124 ppm. The plant air compressor room is not a confined space, and is not required to be monitored to the same limits as a confined space. Therefore, the Emergency Notification made on April 25, 2012, documenting an Alert due to toxic gas in a vital area is retracted. The NRC Resident Inspector has been notified. Notified R3DO (Kunowski).
ENS 47569	5 January 2012 09:53:00	Prairie Island	NRC Region 3	A section of piping between sodium hypochlorite tanks(tanks 121 and 122) broke and resulted in a unisolable leak in one of the tanks. The spill was contained within the berm of the chlorine house. The spill resulted in airborne concentrations exceeding Immediately Dangerous to Life and Health (IDLH) conditions in the chlorine house, which is contiguous to the plant screen house. Alert declared based upon HA3.1 - Report or detection of toxic gases within or contiguous to Table H-1 areas in concentrations that may result in an atmosphere Immediately Dangerous to Life and Health (IDLH). The licensee will remain in the Alert until IDLH conditions have been terminated. An offsite HAZMAT team has been notified and is expected to be on-site today at 0630 CST to clean up the spill. The licensee will notify the Resident Inspectors. * * UPDATE FROM JOHN DUBOSE TO VINCE KLCO AT 0932 EST ON 1/5/2021 * * * The licensee reports that the HAZMAT contractor has arrived on-site. Licensee personnel are preparing a clearance for the sodium hypochlorite system in order to support HAZMAT contractor work. The licensee will notify the NRC Resident Inspector. Notified the R3DO (Valos) * * UPDATE FROM DARRELL LAPCINSKI TO CHARLES TEAL AT 1634 EST ON 1/5/2012 * * * The Alert declaration due to HA3.1, Report or detection of toxic gases within or contiguous to Table H-1 areas in concentrations that may result in an atmosphere Immediately Dangerous to Life and Health (IDHL): Prairie Island terminated from the Alert declaration at 1408 CST on Jan 5, 2012. The following additional conditions were established prior to termination: 1. The permanent berm containing the sodium hypochlorite released by 121 Sodium Hypochlorite Tank piping break was pumped down. 2. Clean-up and remediation of the affected area is in progress. 3. Inspection of the unaffected sodium hypochlorite tank piping has been conducted to ensure satisfactory integrity. NRC Resident has been informed. Notified NRR EO (Ruland), R3DO (Valos), IRD (Morris), DHS (Beach), FEMA (Blankenship), DOE (Jackson), USDA (Timmons), and HHS (Fajardo).
ENS 47551	23 December 2011 21:20:00	Robinson	NRC Region 2	The licensee declared an alert condition based on the inadvertent discharge of Halon gas into their Emergency Bus Room during system testing. Plant operation was unaffected and the unit continued to operate at full power. There were no injuries or equipment damage due to the event. The licensee observed no fire or flames in the area. The licensee evacuated the area and provided ventilation to disperse the Halon. The licensee notified the NRC Resident Inspector. Also notified HHS (Jewel Wright). * * * UPDATE FROM BRIAN WALDSMITH TO DONALD NORWOOD ON 12/23/11 AT 1822 EST * * * At 1810 EST on 12/23/11, Robinson terminated the Alert condition based on a return to a habitable atmosphere in the Emergency Bus Room. "The cause for the Halon System actuation appears to have been a Human Performance Error. The test/inhibit switch was placed in the incorrect position." There were no radiological releases for this event. The licensee notified state, local and other governmental agencies concerning this event. Notified R2DO (McCoy), NRR EO (Giitter), IR (Gott), DHS SWO (Arnold), FEMA (O'Connell), DOE (Jackson), USDA (Walters), and HHS(Wright).
ENS 47443	16 November 2011 07:22:00	Davis Besse	NRC Region 3	At 0222 EST on November 16, 2011, an ALERT was declared due to an electrical fire in the auxiliary building which houses safety related equipment. The apparent cause of the fire was due to an unknown source of water leaking on a breaker, thus causing an arc. The electrical fire is out. The plant was at 0% power and will remain shutdown in Mode 5. There was no impact on core cooling, or emergency power supplies. The licensee has notified the NRC Resident Inspector and state and local agencies. * * UPDATE FROM JANE MALLERNEE TO JOHN KNOKE AT 0449 EST ON 11/16/11 * * * At 0443 EST on November 16, 2011, Davis Besse, Unit 1 exited their ALERT. The electrical short affected the Control Room Emergency Ventilation Fan #1 Damper. The licensee has notified the NRC Resident Inspector. Notified R3DO (Hills) and Canada Nuclear Safety Commission (Jim Sandlef).
ENS 47401	1 November 2011 21:50:00	San Onofre	NRC Region 4	On November 1, 2011 at 1450 PDT, San Onofre Unit 3 declared an ALERT and entered EAL HA3.1 due to an ammonia leak that prevented access to local areas. The plant is in a stable condition while the leakage is being secured. The turbine building on Unit 3 has been evacuated. Plant personnel are in the process of verifying no presence of ammonia in the turbine building. There was no impact on Unit 2. * * UPDATE FROM KEN HOUSEMAN TO JOHN KNOKE AT 2115 EDT ON 11/01/11 * * * At 1807 PDT licensee exited the ALERT and EAL HA3.1. The leak was at the Ammonia day tank and was flowing through an overflow vent into the berm. The high level in the Ammonia day tank was due to a leaking closed valve between the Demineralizer system and the ammonia bulk storage. The berm area was drained of all fluids. The wind direction caused the ammonia fumes to travel to the Unit 3 turbine deck. No off-site HAZMAT personnel came on-site. At 1756 PDT the precautionary evacuation of on-site personnel was terminated. Unit 2 was not affected from this event. The NRC Resident Inspector was notified. Notified NRR EO (Fredrick Brown), R4DO (Vincent Gaddy, IRDMOC (Jeff Grant), DHS (Hill), DOE (Doyle), USDA (Krauf), FEMA (Fuller) and HHS (Fajardo). * * UPDATE FROM LEE KELLY TO VINCE KLCO AT 2228 EDT ON 11/01/11 * * * On November 1, 2011, Southern California Edison notified the California Emergency Management Agency at 1755 PDT and the San Diego Department of Environmental Health at 1810 PDT that approximately 25 gallons of Ammonium Hydroxide was spilled under the Ammonium Hydroxide day tank located outside the Unit 3 turbine building. The spill was contained in a berm under the tank and subsequently cleaned up. Both Units 2 and 3 were at approximately 100% power at the time of the event. Notified the R4DO (Gaddy).
ENS 47275	18 September 2011 15:56:00	Callaway	NRC Region 4	An Alert was declared at Callaway Nuclear Plant at 1056 (CDT) due to EAL HA3.1. Access to an Auxiliary Building area which is prohibited due to release of toxic gas which jeopardizes operation of systems required to maintain safe operations or safely shutdown the reactor. EAL HU3.1 (Unusual Event) is also applicable at the same time. The cause of the toxic gas release was a Freon gas leak from the 'A' Control Room air conditioner unit. The licensee has notified the NRC Resident Inspector and state and local government. Also notified USDA (Pitt) and HHS (Emerson). * * UPDATE FROM DAVID LANTZ TO JOHN KNOKE AT 1847 EDT ON 9/18/11 * * * At 1737 CDT, Callaway Nuclear Plant exited from the Alert for EAL HA3.1, and exited from the Unusual Event for EAL HU3.1. The plant continues to operate at 100% power in Mode 1. There was no radiological release due to this event. Additionally, a press release will be performed after the event closeout. The licensee has notified the NRC Resident Inspector and state and local government. Notifications were also given to R4DO (Pick), NRR EO (Giitter), IRD-MOC (Morris), HQ PAO (Hayden), DHS (Gates), FEMA (Via), DOE (Foote), USDA (Sanders) and HHS (Hoskins).
ENS 47181	23 August 2011 18:03:00	North Anna	NRC Region 2	At 1403 hrs. EDT, North Anna Power Station declared an Alert due to significant seismic activity onsite. The Alert was declared under EAL HA6.1. Both units experienced automatic reactor trips from 100% power and are currently stable in Mode 3. All offsite electrical power to the site was lost. All four emergency diesel generators (EDG) automatically started and loaded and provided power to the emergency buses. While operating, the 2H EDG developed a coolant leak and was shutdown. As a result, the licensee added EAL SA1.1 to their declaration. All control rods inserted into the core. Decay heat is being removed via the steam dumps to atmosphere. No personnel injuries were reported. * * UPDATE FROM ROBERT RINK TO HOWIE CROUCH AT 1116 EDT ON 8/24/11 * * * The licensee has downgraded the Alert to a Notification of Unusual Event based on equipment alignments and inspection results. The licensee notified R2 IRC. Notified IRD (Marshall), NRR (Thorp), FEMA (Hollis), DHS (Inzer), USDA (Ferezan), HHS (Willis) and DOE (Parsons). * * UPDATE FROM ROBERT RINK TO HOWIE CROUCH AT 1317 EDT ON 8/24/11 * * * The licensee has exited the Notification of Unusual Event at 1315 EDT. The exit criteria was that all inspections and walkdowns were completed and plant conditions no longer meet the criteria for a NOUE. Notified R2DO (Widmann), IRD (Marshall), NRR (Thorp), FEMA (Hollis), DHS (Inzer), USDA (Ferezan), HHS (Willis) and DOE (Jackson). * * UPDATE FROM DON TAYLOR TO DONALD NORWOOD AT 1405 EDT ON 8/26/11 * * * This notification is to report new information identified post event that a condition existed which met the emergency plan criteria but was not declared. On August 23 at 1403 EDT, North Anna Power Station declared an Alert due to seismic activity onsite. The Alert was declared under Emergency Action Level (EAL) HA6.1 "Other conditions existing which in the judgment of the SM warrant declaration of an alert. Initial review of seismic response data from the earthquake on 8/23/11 (1348 hours) indicates that design spectrum input assumptions (i.e. Design Basis Earthquake (DBE) limits) may have been exceeded above 5 HZ. This would have resulted in classification of an Alert under EAL HA1.1. No significant equipment damage to safety related systems (including class I structures) has been identified through site walk-downs nor has equipment degradation been detected through plant performance and surveillance testing following the earthquake. The licensee notified the NRC Resident Inspector. The licensee also plans on notifying the State Emergency Operations Center and the Louisa County County Administrator. Notified R2DO (Widmann) and NRR EO (Bahadur).
ENS 47099	27 July 2011 09:15:00	Paducah Gaseous Diffusion Plant	NRC Region 2	At 0415 CDT while changing out a cylinder of Fluorine/CL3 gas mixture in the C350 building, apparently a gasket failure occurred and an uncontrolled release of the gas mixture began. The licensee estimates that at the time the release began, there was approximately 160 lbs. of material in the cylinder. The release continues at this time. The C350 building was evacuated. There were no personnel injuries as a result of this event. No offsite assistance is being requested by the licensee. The local emergency squad is responding. The licensee notified the NRC Resident Inspector. * * UPDATE FROM MIKE BOREN AND GREG BARNA TO DONALD NORWOOD AT 0631 EDT ON 7/27/2011 * * * The licensee believes, but has not verified at this time, that the gas leak has been stopped. A 'shelter in place' order has been issued for the following buildings: C337, C337a, C360, C335, C635 and C631. Samples exterior to building C350 are negative. Samples interior to building C350 still show residue and fog in the building. The licensee notified the NRC Resident Inspector. * * UPDATE FROM MIKE BOREN TO DONALD NORWOOD AT 0714 EDT ON 7/27/2011 * * * The licensee has verified that the leak has been stopped. * * UPDATE FROM GREG BARNA TO DONALD NORWOOD AT 0726 EDT ON 7/27/2011 * * * At 0615 CDT, an employee that was involved with the cylinder change-out and response to the event was transported to the onsite medical facility. He was complaining of a burning sensation to his right arm. At 0625 CDT, samples obtained both inside and outside of building C350 were negative. The licensee notified the NRC Resident Inspector. * * UPDATE FROM GREG BARNA TO DONALD NORWOOD AT 0736 EDT ON 7/27/2011 * * * At 0631 CDT, the licensee has terminated the Alert. The licensee is controlling access to building C350 for investigation. The licensee has setup a recovery team. As a precautionary measure, a second individual that was involved in the cylinder change-out was also transported to the onsite medical facility. The licensee notified the NRC Resident Inspector. Notified R2DO (Blamey), NMSS EO (Habighorst), IRD MOC (Marshall), DHS (Arnold), FEMA (Hollis), DOE (Connally), EPA (Brett), USDA, and HHS (Jones). * * UPDATE FROM DEREK WARFORD TO HOWIE CROUCH AT 0916 EDT ON 7/27/2011 * * * On 7/27/11 at 0710 (CDT), the Paducah Gaseous Diffusion Plant decided to issue a press release describing the Alert issued by the plant earlier in the morning. The Alert issued on a chlorine trifluoride (CIF3) release in the C-350 facility was declared on 07/27/11 at 0415 (CDT) and terminated on 07/27/11 at 0631 (CDT). . This event is reportable under Criteria P in Appendix D of USEC procedure UE2-RA-RE1030 as any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made. The NRC Senior Resident Inspector has been notified of this event. Notified R2DO (Blamey), NMSS EO (Habighorst) and PAO (Harrington).
ENS 47054	15 July 2011 15:16:00	Dresden	NRC Region 3	An alert was declared due to a leak of sodium hypochlorite at the unit 2/3 cribhouse. Access to the unit 2/3 cribhouse, which is a vital area, was restricted. The leak has been isolated. The licensee has notified State authorities and the NRC Resident Inspector. The licensee stated that the sodium hypochlorite leak was actually outside the cribhouse and went into a sump. The fumes from the sodium hypochlorite restricted access to the cribhouse which contains safety related ultimate heat sink equipment (containment cooling service water pumps, emergency diesel generator cooling water pumps). Other than restricting access to the cribhouse, the leak has had no other impact on plant operation. The alert was declared under EAL H.A.7 - release of toxic gas within or restricting access to a vital area. * * UPDATE AT 1626 EDT ON 7/15/11 FROM MIROCHNA TO HUFFMAN * * * The alert has been terminated on 7/15/11 at 1520 CDT. The conditions which caused the alert no longer exist. A press release was made for the event. Two employees were sent for offsite medical attention as a precautionary measure; neither employee was contaminated. The licensee stated that the sodium hypochlorite had leaked from a pipe into a sump under the storage trailer near the cribhouse. The sodium hypochlorite that leaked into the sump has been pumped out. Access to the cribhouse has been restored and there are no other access restrictions at the site. Both units continue to operate at full power. The licensee will notify appropriate state and local authorities. The NRC Resident Inspector has been notified. The licensee has also issued press releases concerning this event. R3DO (Bloomer), NRR EO (Giitter), IRD (Morris), DHS(Knox), and FEMA (Burckhart) have been notified.
ENS 46932	7 June 2011 14:40:00	Fort Calhoun	NRC Region 4	At 0940 CDT an alert (HA 2, EAL 1) for operating Mode less than 210 degrees F (was) declared for a fire affecting the operability of plant safety systems required to establish or maintain safe shutdown. Time of fire was 0930 CDT. Control room received multiple alarms (and) 480 V bus 1B4A amps were observed to be oscillating. Bus 1B4A was secured (and) buses 1B3A and 1B3A-4A were lost. Halon activated properly. (At) 0956 CDT all notifications to applicable personnel were completed. At 1000 CDT 4160v buses 1A2 / 1A4 were secured to facilitate fire fighting. Spent fuel pool cooling was lost (as a result of the de-energized busses and the licensee) entered AOP-36 for loss of SFP cooling. Heat up rate (was) determined by STA. Current time to boil for SFP is 88.3 hrs. Spent fuel pool cooling is currently back in service. This condition is being reported pursuant to 10 CFR 50.72(a)(1)(i) for declaration of an emergency class specified in the licensee's approved emergency plan. Plant was in AOP-1 for flood mitigation. The fire is not believed to be flood related. Plant remains in AOP-1. At about 0930 CDT the licensee noted fire in the west switchgear room. The fire brigade responded and found a room filled with smoke but no active fire. Halon did discharge in the room. At 0956 CDT, offsite assistance was called and Blair Fire Department responded to the site. Blair Fire Department confirmed no active fire in the switchgear room. All offsite power remained available as well as the emergency diesel generators if needed. The licensee is currently attempting to ventilate the room. A thorough inspection of the affected area and determine the caused of the electrical fault will be facilitated once the room has been fully ventilated. The licensee has notified appropriate State and local government. The licensee notified the NRC Resident Inspector. A media or press release is also anticipated. * * UPDATE FROM ROBERT KROS TO HOWIE CROUCH AT 1313 EDT ON 6/7/2011 * * * Entered Alert for HA 3, EAL 1 access to a vital area (Switchgear and Turbine Building basement) due to toxic gases present from the fire in the West Switchgear room. The licensee entered HA 3 at 1144 CDT. Their exit criteria is that the switchgear room is cleared for unimpeded access. The licensee has notified the NRC Resident Inspector. Notified the R4IRC (Kennedy) * * UPDATE FROM ROBERT KROS TO WILLIAM HUFFMAN 1421 EDT ON 6/7/11 * * * At 1315 CDT, Fort Calhoun Nuclear Station has exited Alert HA 2, EAL. It has been confirmed that no fire remained in the vital area. Plant shutdown cooling remained in-service and spent fuel pool cooling was restored and temperature verified to be lowering. The licensee has also exited Alert HA 3, EAL 1 after it was confirmed that the environmental conditions from the event and associated Halon discharge does not affect the ability to safely operate or safely shutdown the reactor due to being in Mode 5 and shutdown cooling remaining in-service. Fort Calhoun remains in Unusual Event HU 1, EAL 5 for River Level greater than 1004' elevation as reported under EN #46929. The licensee has notified appropriate State and local government. The licensee has also notified the NRC Resident Inspector. The NRC made notifications of the event termination to DHS, FEMA, DOE HHS and USDA.
ENS 46873	23 May 2011 19:35:00	Brunswick	NRC Region 2	At 1535 EDT, Brunswick Units 1 & 2 declared an Alert condition due to a discharge of Halon gas into the basement of the emergency diesel generator building (EAL H.A.3.1 for toxic gas discharge into a vital area). Initial inspection indicates that there is no fire. No offsite assistance was required and no personnel injuries as a result of the discharge. Both reactors continue to operate at 100% power. The licensee is investigating the cause of the discharge and will terminate the Alert when the area is ventilated and can be reoccupied. The licensee has notified State and local authorities and the NRC Resident Inspector. * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1659 EDT ON 5/23/11 * * * A later report confirmed that one individual was inside the diesel generator building at the time of the Halon discharge. The individual evacuated the building but complained of chest pains about an hour after the incident. An ambulance was dispatched to transport the individual to the hospital. * * UPDATE FROM CHRIS CINDRIC TO DONG PARK AT 1945 EDT ON 5/23/11 * * * The licensee terminated the Alert at 1943 EDT based on restoring normal atmosphere conditions in the emergency diesel generator building. The initiating cause of this event is still being investigated. The NRC Operations Center has notified the federal agencies initially notified of this event. Notified R2DO (Shaeffer), NRR EO (Brown) and IRD (Grant).
ENS 46813	3 May 2011 18:44:00	Duane Arnold	NRC Region 3	The licensee has declared an Alert due to a hydrogen fire on the hydrogen pad outside the protected area that resulted in evacuating outbuildings (pump house and air compressor buildings) that contain safety related equipment. The Alert is classified under Emergency Action Level HA-3.2 based on report or detection of gases in concentrations higher than lower flammability limit or contiguous to a safe shutdown or vital area. The licensee has also suspended certain security measures under 50.54(x) and 50.54(y). Security measures were suspended due to risks from the fire with no compensatory measures in-place at this time. The fire involves hydrogen cylinders delivered to the site to a trailer pad outside the protected area. The fire developed while exchanging a newly delivered trailer of hydrogen cylinders with an expended hydrogen cylinder trailer. The fire brigade has responded and offsite fire departments have responded to the site. Fire water is currently being sprayed on the hydrogen cylinders. There is no indication of any damage to any plant equipment other than the hydrogen trailer area equipment. The driver of the hydrogen supply truck was reported to have sustained some injuries. There are no other reported injuries to plant personnel. The hydrogen water chemistry system has been isolated and makeup hydrogen to the main generator is isolated. The hydrogen isolation has no impact on the licensee at this time. The plant continues to operate at full power and there have been no immediate impacts from the fire to plant operation. The licensee has notified State, and local authorities and the NRC Resident Inspector. * * UPDATE FROM SCHWERTFEGER TO TEAL AT 1550 EDT ON 5/3/11 * * * The licensee made a one-hour notification of deviation from technical specifications under 10 CFR 50.54(x) and (y) due to the ongoing hydrogen fire. This was due to safeguards system degradation related to monitoring and detection of the OCA. Contact the Headquarters Operations Officer for details. R3 IRC was notified of this report. * * UPDATE FROM SCHWERTFEGER TO HUFFMAN AT 1925 EDT ON 5/3/11 * * * The licensee reported all safeguards systems have been restored and they have exited 10 CFR 50.54(x) and (y). R3 IRC was notified of this report. * * UPDATE FROM CARLSON TO HUFFMAN AT 2023 EDT ON 5/3/11 * * * At 1855 CDT, Duane Arnold has re-classified the hydrogen trailer fire event to an Unusual Event level. The event is classified as an UE under EAL HU-5.1 based on other conditions that exist which, in the judgment of the emergency director, indicate events are in progress or have occurred which indicate a potential for degradation for the level of safety of the plant. The licensee has allowed access to all areas that were previously restricted due to potential safety concerns from the ongoing fire. The hydrogen trailer cylinders are still being sprayed with water and several cylinders are still showing thermal images above ambient. The licensee will evaluate event termination when the fire can be conclusively demonstrated to be extinguished. The licensee has notified state and local authorities and the NRC Resident Inspector. NRC Region 3 continues to monitor the event. Notified R3 (West), NRR EO (Holian), FEMA (Via), and DHS (Knox). * * UPDATE FROM RUSHWORTH TO KLCO AT 0302 EDT ON 5/4/11* * * At 0135 CDT on 5/4/11, Duane Arnold terminated from the Unusual Event. The fire was verified to be out, with no hot spots. The hydrogen tanks have been isolated and the licensee verified no hydrogen is present in the area of the hydrogen pad. The licensee has notified State, local authorities and the NRC Resident Inspector. R3 IRC was notified of this report. Notified R3 (West), NRR (Boger), FEMA (Via), DHS (Hill), HHS (Collins), USDA (Timmons) and DOE (Yates). Will notify R3DO (Ring), NRR EO (Holian), IRD (Marshall).
ENS 46725	5 April 2011 15:49:00	B&W Nuclear Operating Group, Inc.	NRC Region 2	The licensee secured their process after an acid leak greater that the 40 CFR limit developed at a piping joint. The leak consisted of a mixture of hydrofluoric and nitric acid. A licensee response team was dispatched to the site of the leak to evaluate the condition. No injuries resulted and there were no evacuations nor health and safety consequences at the site. Additionally notified USDA (R. Jones), HHS (J. Dennis) and Fuels OUO Group. The licensee notified the NRC Resident Inspector. * * * UPDATE FROM DONNA MILLER TO PETE SNYDER AT 1241 EDT ON 4/5/11 * * * The licensee exited the emergency condition at 1237 EDT on 4/5/11. The spill is contained and no longer poses any threat to employees or the environment. * * UPDATE AT 1558 ON 4/21/2011 FROM KENNY KIRBY TO MARK ABRAMOVITZ * * * On April 5, 2011 during a line inspection at B&W NOG-L, a leak was discovered coming from a 6 inch waste acid line. The leak was in a location that the technician could visually inspect but with limited accessibility because of its proximity to an embankment obstruction. After finding a way to safely determine that waste was leaking from the line at a pH <2, the site Emergency Operation Center was activated and Emergency Team was notified to respond. It was determined that a Reportable Quantity (RQ) of an acidic waste solution (D002) had been released. Notifications were made to EPA Region III, VA DEQ, National Response Center, Nuclear Regulatory Commission, and other Emergency Response organizations as required by the site Emergency Plan. Efforts were taken to ensure the spill was contained to the immediate paved and soil areas. The accumulating liquid was contained with absorbent booms and neutralized with soda ash . It is estimated that 200 gallons of waste solution leaked onto the ground. Approximately seven 55 gallon drums (@ 1500 Pounds) of clean up waste were generated and will be disposed of appropriately. There were no injuries during the spill or during the cleanup operations. The threat to the environment and human health was minimal due to the leak's isolated location . Access to the area was limited and air monitoring in the area did not show any concerns. All released material was contained to the spill area or the cleanup zone. Plant operations draining to this line were halted until the repair was completed . Restart of operations was authorized on April 6, 2011. An investigation of the incident to determine the root cause is in progress and corrective actions will be implemented to prevent reoccurrence . The licensee submitted a follow-up notification to the Virginia Department of Environmental Health, EPA Region III, and will notify the NRC Resident Inspector. Notified NMSS (Easton), R2DO (Bartley), and Fuels OUO Group.
ENS 46400	7 November 2010 23:39:00	Indian Point	NRC Region 1	At 1849 EST, the licensee declared an Alert due to an explosion in the 21 Main Transformer. As a result of the loss of the transformer, Unit 2 experienced a reactor trip. Plant response to the trip was normal and the plant is stable in Mode 3. At 1839 hrs., the licensee activated their Emergency Response Organization. Additionally, there was a report of smoke issuing from a metering station at the site boundary. Offsite assistance has been requested to investigate the metering station. No injuries were reported and the licensee is investigating whether any other equipment damage occurred as a result of the transformer failure. * * UPDATE FROM NICK LIZZO TO HOWIE CROUCH AT 2200 EST ON 11/07/10 * * * On November 7, 2010, at 1839 hours, the Reactor Protection System automatically actuated at 100% Reactor Power when the 21 Main Transformer failed. The failure resulted in a turbine / reactor trip. All plant equipment responded normally to the unit trip. This is reportable under 10 CFR 50.72(b)(2)(iv). The transformer failure was characterized as an explosion that meets the IPEC (Indian Point Energy Center) EAL criteria 8.2.3. An Alert was declared at 1849 hours. The plant is stable in Mode 3 at this time. The Auxiliary Feedwater System actuated following the manual trip, as expected. This is reportable under 10 CFR 50.72(b)(3)(iv)(A). The Emergency Diesel Generators did not start as offsite power remained available and stable. The Station Auxiliary Transformer tap changer has remained at the maximum tap changer position and is inoperable, however the unit remains on offsite power and all electrical loads are stable. No primary or secondary relief valves lifted. The plant is in Hot Standby at normal temperature and pressure with residual heat removal using auxiliary feedwater and normal heat removal through the condenser via steam dumps. There was no radiation released. Indian Point Unit Three was not affected by this event and remains at 100% power. A post trip investigation is in progress. A one hour notification of the Alert Declaration was made to the NRC Emergency Operations Duty Center officer Howie Crouch at 1907 (hrs. EST). The licensee has notified the NRC Resident Inspector, the New York State Public Service Commission, New York State EMA and local county officials. Notified R1DO (White). * * UPDATE FROM CHARLES LAVERDE TO HOWIE CROUCH AT 2230 EST ON 11/07/10 * * * At 2218 EST, the licensee exited the Alert emergency declaration. The exit criteria was that: 1) The plant was in or was proceeding to cold shutdown, 2) No radiation release was in progress or anticipated 3) All radiation levels in the plant were stable or decreasing, and 4) No limitation on access to all plant areas. The licensee has notified the NRC Resident Inspector. Notified IRD (Gott), R1DO (White), NRR EO (Bahadur), FEMA (Heyman), DHS (Doyle), HHS (Gruenspecht), USDA (John) and DOE (Turner). * * UPDATE ON 11/8/2010 AT 1228 FROM MICHAEL McCARTHY TO MARK ABRAMOVITZ * * * Approximately 50-100 gallons of oil from the transformer reached the Hudson River. The licensee notified the National Response Center and the New York State Department of Environmental Conservation. The licensee notified the NRC Resident Inspector. Notified the R1DO (White).
ENS 46164	10 August 2010 13:11:00	Susquehanna	NRC Region 1	At 0911 EDT, the Susquehanna LLC Shift Manager was notified that a member of the SSES (Susquehanna Steam Electric Station) work force was feeling ill effects from a Freon-12 leak located in a plant vital area. This met the declaration criteria for an Alert under (EAL) OA-7 of the emergency plan which was declared at 0922 EDT. The affected area has been evacuated and recovery actions are in progress to isolate the leak. No personnel were injured or medical attention was required. The leak is in the 1A Reactor Building chiller unit. At the time of notification, the leak was still active. The licensee is preparing a team to enter the area to investigate. No outside assistance is required. Notified DHS (Hill), FEMA (Heyman), DOE (Smith), USDA (Mitchell) and HHS (Rolle). * * UPDATE FROM DARVIN DUTTRY TO DONALD NORWOOD AT 0044 EDT ON 8/11/2010 * * * At 2335 EDT on 8/10/10, the Alert was terminated. The Chiller has been evacuated of Freon-12. Freon detectors show no presence of Freon-12 on U1 Reactor Building Elevation 749 (feet), except in the immediate vicinity from the leak site with temporary ventilation in service. All state and local agencies have been advised, the NRC Resident Inspector has been notified and a press release will be made. Agencies that the licensee notified included the Columbia County Emergency Management Agency, the Luzerne County Emergency Management Agency, the Pennsylvania Emergency Management Agency and the Pennsylvania Department of Environmental Protection. Notified R1DO (Ferdas), NRR EO (Nelson), IRD Manager (Gott), DHS (Doyle), FEMA (O'Connell), DOE (Morrone), HHS (White), and USDA (Timmons).
ENS 46036	23 June 2010 17:48:00	Diablo Canyon	NRC Region 4	A CARDOX release occurred in the Unit-1 main turbine lube oil room and an Unusual Event was declared. The release resulted in an atmosphere immediately dangerous to life and health resulting in an Alert notification. No injuries resulted, however, the crane bay in the center of the turbine building was evacuated. Approximately 30% of the CARDOX storage tank was discharged due to a malfunctioning solenoid valve. This valve had recently been replaced. The licensee notified the NRC Resident Inspector. * * UPDATE AT 1525 EDT ON 6/23/10 FROM TONY CHITWOOD TO S. SANDIN * * * The licensee provided the following information as an update: On June 23, 2010, at 1035 PDT, an accidental discharge of CARDOX into Unit 1 Main Lube Oil Reservoir Room occurred during testing. On June 23, at 1048 PDT, an Unusual Event was declared for DCPP Unit 1. On June 23, at 1056 PDT, an Alert was declared for DCPP Unit 1. The DCPP Unit 1 reactor remains at full power. No safety related equipment has been impacted. There were no injuries to personnel and no equipment damage. Offsite assistance was requested to assist in event response. Pacific Gas and Electric Company issued the first press release at 1225 PDT on June 23, 2010. Further press releases will be issued as necessary until the event is terminated. The licensee notified the NRC Resident Inspector." The licensee also informed state and local agencies. Notified R4DO (Pick). * * UPDATE AT 2028 EDT ON 6/23/10 FROM DAVID EFRON TO S. SANDIN * * * The licensee has terminated the Alert at 1715 PDT based on restoring accessibility to all plant area. The licensee will inform state/local agencies, the NRC Resident Inspector and issue a follow-up press release. Notified R4DO (Pick), NRR EO (Cunningham), IRD (Morris), DHS (Inzer), FEMA (Hollis), DOE (Yates), USDA (Petrick), and HHS (Lee).
ENS 45980	6 June 2010 15:37:00	Brunswick	NRC Region 2	At 1137 EDT, Brunswick Units 1 & 2 declared an Alert condition due to a discharge of Halon gas into the basement of the emergency diesel generator building (EAL H.A.3.1 for toxic gas discharge into a vital area). Initial inspection indicates that there is no fire. No offsite assistance was required and no personnel injuries as a result of the discharge. Both reactors continue to operate at 100% power. The licensee is investigating the cause of the discharge and will terminate the Alert when the area is ventilated and can be reoccupied. The licensee has notified State and local authorities and the NRC Resident Inspector. * * UPDATE TO ABRAMOVITZ FROM CINDRIC AT 1616 EDT ON 6/6/10 * * * The licensee terminated the Alert at 1614 EDT based on restoring normal atmosphere conditions in the emergency diesel generator building. The initiating cause of this event is still being investigated. State and local authorities have been notified and the Resident Inspector will be notified. The NRC Operations Center has notified the Federal Agencies initially notified of this event. R2DO (Vias), NRR EO (Galloway) and IRD (Grant) notified.
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