ML101460098
| ML101460098 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/26/2010 |
| From: | David Lew Division Reactor Projects I |
| To: | Lochbaum D Union of Concerned Scientists |
| Lew, David | |
| References | |
| FOIA/PA-2011-0115 | |
| Download: ML101460098 (2) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION REGION I 475 ALLENDALE ROAD KING OF PRUSSIA, PENNSYLVANIA 19406-1415 May 26. 2010 David Lochbaum Director, Nuclear Safety Project Union of Concerned Scientists PO Box 15316 Chattanooga, TN 37415
Dear Mr. Lo,
,:hbaum:
I am responding to your April 28, 2010, email to Don Jackson of our staff regarding an event involving electrical arcing at Millstone Unit 2, prompting a reactor shutdown in October 2009.
Since that time, I understand that Don Jackson spoke with you directly and personally clarified the events and observations that occurred during this evolution. A subsequent clarification was also made by the NRC to the New London Day newspaper, which published a clarified article shortly thereafter.
As noted in NRC Inspection Report 50-336/2009005 (ML100341288), during the event in October, there were elevated temperatures. as well as observed arcing on a manual electrical disconnect. which licensee electricians identified during the work evolution and reported to the control room. Operators conducted a controlled shutdown of the facility following receipt of these reports.
Based on our independent inspection of this event, there is no indication that any of the information provided to the NRC by Dominion, the licensee for Millstone Unit 2, was in error.
If you have any further questions in this matter, please contact Richard S. Barkley of this office at (610) 337-5065.
Sincerely,
~dlJ.tl//
fj~~
vid C. ~ir..&l;
~
Division of Reactor Projects
May 26.2010 David Lochbaum Director. Nuclear Safety Project Union of Concerned Scientists PO Box 15316 Chattanooga, TN 37415
Dear Mr. Lochbaum:
I am responding to your April 28. 2010, email to Don Jackson of our staff regarding an event involving electrical arcing at Millstone Unit 2, prompting a reactor shutdown in October 2009.
Since that time. 1understand that Don Jackson spoke with you directly and personally clarified the events and observations that occurred during this evolution. A subsequent clarification was also made by the NRC to the New London Day newspaper. which published a clarified article shortly thereafter.
As noted in NRC Inspection Report 50-336/2009005 (ML100341288), during the event in October, there were elevated temperatures, as well as observed arcing on a manual electrical disconnect, which licensee electricians identified during the work evolution and reported to the control room. Operators conducted a controlled shutdown of the facility following receipt of these reports.
Based on our independent inspection of this event, there is no indication that any of the information provided to the NRC by Dominion, the licensee for Millstone Unit 2, was in error.
If you have any further questions in this matter, please contact Richard S. Barkley of this office at (610) 337-5065.
Sincerely.
IRA by James W. Clifford Acting Fori David C. Lew, Director, Division of Reactor Projects SUNSI Review Complete: RSB (Reviewer'S Initials)
ML101460098 DOCUMENT NAME: G:\\ORA\\Barkley\\Lochbaum - Millstone Arcing - Revised.doc After declaring this document "An Official Agency Record" it ~ be released to the Public.
T() receive acopy of thl$ document, Indicate in the box: *c* Copy without attachmentfenclosure 'E" Copy with attachmentJooclosure 'N" =No copy OFFICE RIIORAllhp I RIIDRP I
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NAME RBarkley/rb
- DJacksonfdi to-DLew/jwc for DATE 05/18/10 05/18/10 05/25/10 OFFICIAL RECORD COPY
- see prior concurrence