Mr. Michael J. Pacilio
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION I
475 ALLENDALE ROAD
KING OF PRUSSIA, PA 19406-1415
September 1, 2010
Senior Vice President, Exelon Generation Company, LLC
President and Chief Nuclear Officer, Exelon Nuclear
4300 Winfiel...
Quad Cities 2
4Q/2015 Plant Inspection Findings
Initiating Events
Significance: Jun 30, 2015
Identified By: Self-Revealing
Item Type: NCV Non-Cited Violation
INADEQUATE ZONE OF PROTECTION FOR ELECTRICAL BUS MAINTENANCE
A finding of very low safety significance and associat...
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
1600 E. LAMAR BLVD.
ARLINGTON, TX 76011-4511
March 2, 2016
Mr. Dennis Koehl
President and Chief Executive Officer
STP Nuclear Operating Company
P.O. Box 289
Wadsworth, TX 77483
SUBJECT: ANNUAL ASSES...
La Salle 1
1Q/2016 Plant Inspection Findings
Initiating Events
Mitigating Systems
Significance: Dec 31, 2015
Identified By: NRC
Item Type: NCV Non-Cited Violation
Failure to Perform Required Monthly Fire Extinguisher Inspections per National Fire Protection Association
C...
Peach Bottom 2
1Q/2016 Performance Indicators
The solid trend line represents the current reporting period.
Licensee's General Comments: none
Licensee Comments: none
Unplanned Scrams per 7000 Critical Hrs 2Q/14 3Q/14 4Q/14 1Q/15 2Q/15 3Q/15 4Q/15 1Q/16
Unplanned scrams 0...
March 4, 2002
Mr. Charles H. Cruse
Vice President
Constellation Nuclear
Calvert Cliffs Nuclear Power Plant, Inc.
1650 Calvert Cliffs Parkway
Lusby, MD 20657-4702
SUBJECT: ANNUAL ASSESSMENT LETTER - CALVERT CLIFFS NUCLEAR POWER
PLANT (REPORT 50-317/02-01, 50-318/02-01)
Dea...
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION I
2100 RENAISSANCE BLVD., SUITE 100
KING OF PRUSSIA, PA 19406-2713
September 1, 2015
Mr. David Heacock
President and Chief Nuclear Officer
Dominion Resources
5000 Dominion Boulevard
Glen Allen, VA ...
INFORMATION REPORT
October 26, 2005 SECY-05-0193
For: The Commissioners
From: William M. Dean, Assistant for Operations, Office of the EDO
Subject: “WEEKLY INFORMATION REPORT - WEEK ENDING
OCTOBER 14, 2005”
Contents Enclosure
Nuclear Reactor Regulation A
...
INFORMATION REPORT
June 22, 2005 SECY-05-0108
For: The Commissioners
From: William M. Dean, Assistant for Operations, Office of the EDO
Subject: SECY-05-0108 - “WEEKLY INFORMATION REPORT - WEEK
ENDING JUNE 10, 2005”
Contents Enclosure
Nuclear Reactor Re...
Fort Calhoun
4Q/2014 Performance Indicators
The solid trend line represents the current reporting period.
Licensee's General Comments: A minor non-conservative error in planned unavailability was identified during
management review of third quarter 2014 data and correc...
Hatch 1
4Q/2014 Plant Inspection Findings
Initiating Events
Significance: Sep 30, 2014
Identified By: Self-Revealing
Item Type: FIN Finding
Unit Downpower Caused by Relief Valve Failure
A self-revealing finding was identified when the opening of the 8th stage feedwa...
SECY-96-004
January 3, 1996
FOR: The Commissioners
FROM: James M. Taylor /s/
Executive Director for Operations
SUBJECT: PROPOSED NRC GENERIC LETTER 89-10, SUPPLEMENT 7, "CONSIDERATION OF VALVE MISPOSITIONING IN
PRESSURIZED-WATER REACTORS" (TAC NO. M82072)
PURPOSE:
...
Indian Point 3
2Q/2016 Performance Indicators
The solid trend line represents the current reporting period.
Licensee's General Comments: none
Licensee Comments:
4Q/15: PI exceeded Green threshold due to a reactor trip on December 14, 2015, as a result of a Main Generator...
Millstone 2
1Q/2007 Plant Inspection Findings
Initiating Events
Mitigating Systems
Significance: Mar 31, 2007
Identified By: NRC
Item Type: NCV NonCited Violation
FAILURE TO PROMPTLY CORRECT A DEGRADED CONDITION OF THE 480V MCCS PER CRITERION
XVI OF APPENDIX B TO ...
Beaver Valley 2
4Q/2011 Plant Inspection Findings
Initiating Events
Mitigating Systems
Significance: Jun 30, 2011
Identified By: Self-Revealing
Item Type: NCV NonCited Violation
Failure to Maintain Recirculation Spray HXs in Chemical Wet Layup
A Green, self-reveal...
Quad Cities 1
4Q/2012 Performance Indicators
Licensee's General Comments: none
Licensee Comments: none
Unplanned Scrams per 7000 Critical Hrs 1Q/11 2Q/11 3Q/11 4Q/11 1Q/12 2Q/12 3Q/12 4Q/12
Unplanned scrams 0 1.0 0 0 0 0 0 0
Critical hours 2159.0...
Saint Lucie 2
1Q/2013 Plant Inspection Findings
Initiating Events
Significance: Apr 20, 2012
Identified By: NRC
Item Type: NCV NonCited Violation
Failure to correct a LPSI pump design deficiency
An NRC-identified Green NCV of 10 CFR Part 50 Appendix B, Criterion XVI...
Quad Cities 2
4Q/2012 Performance Indicators
Licensee's General Comments: none
Licensee Comments: none
Unplanned Scrams per 7000 Critical Hrs 1Q/11 2Q/11 3Q/11 4Q/11 1Q/12 2Q/12 3Q/12 4Q/12
Unplanned scrams 0 0 0 0 0 1.0 0 0
Critical hours 2159.0...
San Onofre 3
4Q/2012 Performance Indicators
Licensee's General Comments: none
Licensee Comments:
4Q/12: This PI is N/A for 4Q12 due to less than 2400 critical hours in previous 4 quarters.
Unplanned Scrams per 7000 Critical Hrs 1Q/11 2Q/11 3Q/1...
Limerick 2
2Q/2014 Performance Indicators
The solid trend line represents the current reporting period.
Licensee's General Comments: none
Licensee Comments: none
Unplanned Scrams per 7000 Critical Hrs 3Q/12 4Q/12 1Q/13 2Q/13 3Q/13 4Q/13 1Q/14 2Q/...
Home > Nuclear Reactors > Operating Reactors > Reactor Oversight Process > Plant Summaries> Millstone 3 > Quarterly Performance
Indicators
Millstone 3 – Quarterly Performance Indicators
3Q/2017 Performance Indicators
The solid trend line represents the current reporting pe...
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION I
2100 RENAISSANCE BLVD., SUITE 100
KING OF PRUSSIA, PA 19406-2713
March 2, 2016
Mr. Bryan Hanson
Senior Vice President, Exelon Generation
President and Chief Nuclear Officer, Exelon Nuclear
4300 Winfield...
UNITED STATES
NUCLEAR REGU LATORY COMMISSION
REGION I
475 ALLENDALE ROAD
KING OF PRUSSIA. PA 19406.1415
March 4, 20II
Mr. Timothy S. Raus0h
Senior Vice President and Chief Nuclear Officer
PPL Susquehanna, LLC
769 Salem Boulevard
Benrick, PA 18603-0467
SUBJECT: ANNUAL AS...
Duane Arnold
3Q/2012 Performance Indicators
Licensee's General Comments: none
Licensee Comments: none
Unplanned Scrams per 7000 Critical Hrs 4Q/10 1Q/11 2Q/11 3Q/11 4Q/11 1Q/12 2Q/12 3Q/12
Unplanned scrams 0 0 0 0 0 0 0 0
Critical hours 1207.2 21...
Brunswick 1
1Q/2009 Plant Inspection Findings
Initiating Events
Mitigating Systems
Significance: Mar 31, 2009
Identified By: NRC
Item Type: NCV NonCited Violation
Failure to Perform a 10 CFR 50.59 Evaluation for a Plant Modification
The inspectors identified a sev...