ML100780492

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Email from Peter Bamford, NRR to Mark Blumberg, NRR on Emailing: Response to RAI Dated August 31, 2005.PDF
ML100780492
Person / Time
Site: Three Mile Island  Constellation icon.png
Issue date: 11/25/2009
From: Peter Bamford
Plant Licensing Branch 1
To: Mark Blumberg
NRC/NRR/DRA/AADB
References
FOIA/PA-2010-0118
Download: ML100780492 (1)


Text

Bamford, Peter From: Bamford, Peter Sent: Wednesday, NoverTnber 25, 2009 10:49 AM To: Blumberg, Mark NF-P)

Cc: Tate, Travis (/'I , P-)

Subject:

RE: Emailing: Response to RAI dated August 31 2005.PDF Thanks Mark. Things have calmed down a little now. Your thought process is similar to mine. When I heard that TMI had a positive pressure situation in containment at the time of the event I looked into this a little. I looked at the amendment you are referring to and based upon my read of the SE, it appeared to me that any ventilation requirements that might have stemmed from the amendment were tied to fuel handling. With TMI being defueled at the time of the contamination event I didn't see any regulatory tie. I didn't go down to the RAI level so I'll review what you sent and see if there are better insights there. I'll make sure the residents and inspectors know about any applicable background. (I can't read the attachment you sent at home but will get to it when I return on 12/1).

Irrespective of the amendment I have already pressed the residents on this issue. I thought I remembered reading the licensee's design change package for the containment SG construction opening that some ventilation controls were required once the liner was cut. The residents are checking on this as part of their event investigation.

Thanks again for the feedback and I'll let you know where the investigation stands next week.

Pete From: Blumberg, Mark Sent: Wednesday, November 25, 2009 8:20 AM To: Bamford, Peter Cc: Tate, Travis

Subject:

Emailing: Response to RAI dated August 31 2005.PDF

Peter, I know that you are probably up to you neck in alligators right now, but I wanted to pass along some info that may be helpful to your situation with the TMI release. As a matter of defense in depth we asked many questions of TMI when they requested to be able to open their equipment hatch during refueling. In response to our questions regarding GDC 64 (see RAI question 5), TMI put in place several commitments regarding HVAC. While these RAI responses were for the FHA, I think the same controls should have been in place for a similar open containment situation with the potential for a release.

I hope this is helpful to you.

Response to RAI dated August 31 2005.PDF Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments. Check your e-mail security settings to determine how attachments are handled.

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