|
|---|
Category:NRC Preliminary Notification of Event/Occurrence
MONTHYEARML21190A2422021-07-0909 July 2021
PNO-lll-21-001A: Donald C. Cook Nuclear Plant, Unit 2, Update: Unplanned Shutdown Greater than 7 Days Due to Main Steam Leakage
ML21181A4162021-06-30030 June 2021
PNO-lll-21-001 Donald C. Cook Nuclear Plant, Unit 2: Unplanned Shutdown Greater than 7 Days Due to Main Steam Leakage
PNO-III-20-001A, Update: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits2020-05-11011 May 2020
PNO-III-20-001A Update: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits
PNO-III-20-001, Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits2020-05-0404 May 2020
PNO-III-20-001: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits
ML17256A7152017-09-13013 September 2017
PNO-III-2017-002: Donald C. Cook Notice of Unusual Event During Plant Shutdown Due to Increased Reactor Coolant System Leakage
PNO-III-16-003, D.C. Cook Unit 2 Manual Trip Resulting in a Shutdown for Greater than 72 Hours2016-07-12012 July 2016
PNO-III-16-003: D.C. Cook Unit 2 Manual Trip Resulting in a Shutdown for Greater than 72 Hours
PNO-III-15-007, A - D.C. Cook: Update to Technical Specification Required Shutdown of D.C. Cook Unit 1 Due to an Inoperable Emergency Diesel Generator2015-07-30030 July 2015
PNO-III-15-007A - D.C. Cook: Update to Technical Specification Required Shutdown of D.C. Cook Unit 1 Due to an Inoperable Emergency Diesel Generator
ML15153A6192015-06-0202 June 2015
PNO-III-15-007 - D.C. Cook: Technical Specification Required Shutdown of D.C. Cook Unit 1 Due to an Inoperable Emergency Diesel Generator
ML14316A5922014-11-12012 November 2014
PNO-lll-14-010A - Update: D.C. Cook Dual Unit Manual Trip Resulting in a Shutdown for Greater than 72 Hours on Unit 2
PNO-III-14-010, D.C. Cook Dual Unit Manual Trip Resulting in a Shutdown for Greater than 72 Hours on Unit 22014-11-0404 November 2014
PNO-III-14-010: D.C. Cook Dual Unit Manual Trip Resulting in a Shutdown for Greater than 72 Hours on Unit 2
ML1123601032011-08-23023 August 2011
PNO-II-11-005: North Anna, Emergency Declarations Due to Seismic Event
PNO-I-10-003, Unusual Event Declarations Due to Seismic Activity (Vermont Yankee and D.C. Cook)2010-06-23023 June 2010
PNO-I-10-003: Unusual Event Declarations Due to Seismic Activity (Vermont Yankee and D.C. Cook)
PNO-I-10-002, Loss of Normal Communications / Storm Impact Offsite at Vermont Yankee2010-05-28028 May 2010
PNO-I-10-002: Loss of Normal Communications / Storm Impact Offsite at Vermont Yankee
PNO-III-09-015, D.C. Cook Unit 1, Return to 100 Percent Power2009-12-23023 December 2009
PNO-III-09-015: D.C. Cook Unit 1, Return to 100 Percent Power
PNO-III-09-014, D.C. Cook Unit 1, Restart2009-12-18018 December 2009
PNO-III-09-014: D.C. Cook Unit 1, Restart
PNO-III-09-013, D. C. Cook Unit 1 Mode Change Following 14 Months Forced Outage2009-11-23023 November 2009
PNO-III-09-013 - D. C. Cook Unit 1 Mode Change Following 14 Months Forced Outage
PNO-III-09-006, A: D.C. Cook Unit 2, Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal (Update)2009-08-10010 August 2009
PNO-III-09-006A: D.C. Cook Unit 2, Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal (Update)
ML0920901352009-07-28028 July 2009
PNO-III-09-006: D.C. Cook, Unit 2 Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal
PNO-III-08-011, D. C. Cook - Unit 1 Manual Trip Due to Main Turbine Generator Fire and Significant Fire Suppression System Degradation2008-09-22022 September 2008
PNO-III-08-011: D. C. Cook - Unit 1 Manual Trip Due to Main Turbine Generator Fire and Significant Fire Suppression System Degradation
PNO-I-08-009, A: Vermont Yankee, Update - Water Leak in a Cooling Tower2008-07-16016 July 2008
PNO-I-08-009A: Vermont Yankee, Update - Water Leak in a Cooling Tower
PNO-I-08-006, A: Vermont Yankee Nuclear Power Station, (Update) Transfer of Spent Fuel from Spent Fuel Storage Pool to Onsite Independent Spent Fuel Storage Installation (ISFSI)2008-05-30030 May 2008
PNO-I-08-006A: Vermont Yankee Nuclear Power Station, (Update) Transfer of Spent Fuel from Spent Fuel Storage Pool to Onsite Independent Spent Fuel Storage Installation (ISFSI)
ML0814405922008-05-23023 May 2008
PNO-I-08-006: Vermont Yankee Nuclear Power Station, Transfer of Spent Fuel from Spent Fuel Storage Pool to Onsite Independent Spent Fuel Storage Installation (ISFSI)
PNO-III-08-004, A, Cook and Palisades, Update - Unusual Events Declared Due to Earthquake2008-04-18018 April 2008
PNO-III-08-004A, Cook and Palisades, Update - Unusual Events Declared Due to Earthquake
ML0810903102008-04-18018 April 2008
PNO-III-08-004: Cook & Palisades, Unusual Events Declared Due to Earthquake
PNO-I-07-008, Vermont Yankee, Restoration of West Cooling Towers2007-09-14014 September 2007
PNO-I-07-008: Vermont Yankee, Restoration of West Cooling Towers
PNO-III-06-017, A: D.C. Cook: Unit 1 Shuts Down Due to High Containment Air Temperature (Update)2006-08-0303 August 2006
PNO-III-06-017A: D.C. Cook: Unit 1 Shuts Down Due to High Containment Air Temperature (Update)
ML0621302182006-08-0101 August 2006
PNO-III-06-017: D. C. Cook Unit 1 Shuts Down Due to High Containment Air Temperature
PNO-I-06-009, Vermont Yankee Unusual Event Due to Indications of Fire in Electrical Switchgear Room2006-05-25025 May 2006
PNO-I-06-009: Vermont Yankee Unusual Event Due to Indications of Fire in Electrical Switchgear Room
PNO-III-05-015, D. C. Cook Unit 2 Special Inspection of Electrical Problems After Reactor Trip2005-11-10010 November 2005
PNO-III-05-015: D. C. Cook Unit 2 Special Inspection of Electrical Problems After Reactor Trip
PNO-III-04-004, Indiana Michigan Power Co, Shutdown of D.C. Cook Unit 1 for Greater than 72 Hours2004-03-30030 March 2004
PNO-III-04-004: Indiana Michigan Power Co, Shutdown of D.C. Cook Unit 1 for Greater than 72 Hours
PNO-III-03-021, D.C. Cook Dual Unit Shutdown Resulting from Fish Intrusion2003-04-24024 April 2003
PNO-III-03-021: D.C. Cook Dual Unit Shutdown Resulting from Fish Intrusion
PNO-III-03-002, D.C. Cook Reactor Trip Due to Main Transformer Fire2003-01-21021 January 2003
PNO-III-03-002: D.C. Cook Reactor Trip Due to Main Transformer Fire
PNO-III-02-025, A - Alert -- Fire in D.C. Cook Unit 1 Switchyard (Update)2002-06-13013 June 2002
PNO-III-02-025A - Alert -- Fire in D.C. Cook Unit 1 Switchyard (Update)
2021-07-09
[Table view] |
DCS No.: 0500027106232010 0500031506232010 0500031606232010 Date: June 23, 2010 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE - PNO-I-10-003 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region I staff on this date.
Facility Licensee Emergency Classification Entergy Nuclear Operations, Inc. X Notification of Unusual Event Vermont Yankee Nuclear Power Station Alert Unit 1 Site Area Emergency Brattleboro, VT General Emergency Docket No.: 50-271 Not Applicable License No.: DPR-28 American Electric Power D.C. Cook Nuclear Power Plant Unit 1 & 2 Bridgman, MI Docket No.: 50-315; 50-316 License No.: DPR - 58; DPR - 74
SUBJECT:
UNUSUAL EVENT DECLARATIONS DUE TO SEISMIC ACTIVITY On June 23, 2010, the Vermont Yankee Nuclear Power Station (Vermont Yankee) located in Vernon, VT, declared an Unusual Event (UE) at 2:25 p.m. The declaration was made by Entergy in accordance with the plant specific emergency action guidelines after ground motion was felt by personnel on-site and the occurrence of an earthquake was confirmed by the National Earthquake Information Center. According to U.S. Geological Survey, an earthquake of magnitude 5.0 occurred with a seismic epicenter located 33 miles north of Gatineau, Quebec, Canada, near Ottawa and approximately 300 miles from the Vermont Yankee site.
Additionally, the D.C. Cook Nuclear Power Plant (D.C. Cook) located in Bridgman, MI, declared an UE at 2:28 p.m. The declaration was made by the licensee in accordance with the plant specific emergency action guidelines after ground motion was felt and reported by on-site staff to control room operators.
Vermont Yankee continues to operate normally at 100-percent power and there has been no evidence of damage based upon plant inspection of station equipment and structures. The NRC Resident Inspectors are on-site and independently verifying, by conducting inspection activities, that there is no evidence of damage to plant equipment. The NRC confirmed that VY operators notified the states of NH, VT, and MA regarding the UE emergency declaration.
D.C. Cook continues to operate normally at 100-percent power and there has been no damage based upon inspection of station equipment. The NRC Resident Inspectors are on-site providing independent review of the licensees response and inspection of plant equipment.
The NRC confirmed that D. C. Cook operators notified the State of MI regarding the UE emergency declaration.
2 The NRC is monitoring the impact of the seismic activity on other U.S. plants. Currently, no other plants have made an emergency declaration in accordance with their emergency action guidelines.
An Unusual Event is the lowest of four emergency classifications of events that apply to nuclear power plants as defined by the NRC. The NRC has not changed response posture due to this event.
The information presented herein has been discussed with Entergy and AEP and is current as of June 23, at 4:30 p.m. This preliminary notification is issued for information only.
NRC Public Affairs is prepared to respond to media inquiries.
ADAMS Accession Number: ML101740638
Contact:
Richard Barkley, 610-337-5065, Region I Frances Ramirez, 630-829-9616, Region III
3 DISTRIBUTIONS: (by email: Rl-DL-PN; PN_Distribution)
BY E-MAIL:
Chairman Jaczko Comm. Svinicki Comm. Apostolakis Comm. Magwood Comm. Ostendorff OIP OCA OGC EDO OE NRR NMSS OIG RES ACRS FSME NRO NSIR OPA SECY Regional Offices BY FAX:
DOT:Trans INPO NSAC Licensee: Entergy Nuclear Operations, Inc.
Vermont Yankee American Electric Power DC Cook SUNSI Review Complete: MXG (Reviewer=s Initials)
DOCUMENT NAME: G:\DRP\PNs\PNO-I-10-003 Vermont Yankee Sesmic Event.doc After declaring this document AAn Official Agency Record@ it will be released to the Public.
To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy ML101740638 OFFICE RI/DRP RI/ORA RI/SLO RI/DRP RI/ORA NAME MGray RBarkley DTifft* JClifford MDapas DATE 06/ 23 /10 06/ 23 /10 06/ 23 /10 06/ 23 /10 06/ 23 /10 OFFICE RIII/DRP NAME GShear*
DATE 06/ 23 /10 OFFICIAL RECORD COPY
- Concurrence via telecom Region I Form 83 (Rev. July 2, 2003)
