ML091980514

E-mail from J. Richmond of USNRC to C. Newport of USNRC, Regarding Input for Exelon Drop-in Briefing Package

ML091980514
Person / Time
Site:	Oyster Creek
Issue date:	12/04/2008
From:	Richmond J Engineering Region 1 Branch 1
To:	Christopher Newport NRC/RGN-I/DRP/PB6
References
FOIA/PA-2009-0070
Download: ML091980514 (3)

Text

Sarah Rich From: John Richmond W'*

Sent: Thursday, December 04, 2008 2:05 PM To: Christopher Newport

Subject:

RE: INPUT for Exelon Drop-in Briefing Package Slight revision ... based on one of Marc's comments...

Key Messages for Oyster Creek Overall, the station continues to demonstrate performari imorovement. Areas of interest bv residents include equipment reliability and technical human perforipanceL (b)(5)

(b)(5) JIs Exelon considering whether any license renewal commitment changes are needed, regarding Drywell Sand Bed Inspections, based on outage operating experience?

From: Christopher Newport Sent: Thursday, December 04, 2008 1:58 PM To: John Richmond

Subject:

RE: INPUT for Exelon Drop-in Briefing Package OK, Paul wants to just include a one page update (errata page) in lieu of reprinting all of the packages. (the packages are for NRC staff only, Exelon won't be seeing them). I've included the Br 6 inputs here.

-CWN From: John Richmond Sent: Thursday, December 04, 2008 1:32 PM To: Christopher Newport

Subject:

RE: INPUT for Exelon Drop-in Briefing Package might be a good idea if Rich sees the final product before Darrell does [of course Rich has left for the day, and will be in a little late tomorrow - -9:30 am]

just a thought From: Christopher Newport Sent: Thursday, December 04, 2008 1:22 PM To: Richard Conte; John Richmond Cc: Darrell Roberts; Ronald Bellamy; Jeffrey Kulp

Subject:

RE: INPUT for Exelon Drop-in Briefing Package Thanks John, we will make sure this gets integrated.

-CWN From: Richard Conte Sent: Thursday, December 04, 2008 12:41 PM To: John Richmond; Christopher Newport Cc: Darrell Roberts; Ronald Bellamy; Jeffrey Kulp

Subject:

RE: INPUT for Exelon Drop-in Briefing Package Information inthis record was deleted l.

accordance with the Freedom of Information L Exemptions fOJAIPA 0 - 7( ,*

nice John, I blame myself for not coordinating this before hand since I knw about the drop in even though I didn't ask for the meeting perse.

I decided to go eat Turkey, now I am one.

From: John Richmond Sent: Thursday, December 04, 2008 12:25 PM To: Christopher Newport Cc: Darrell Roberts; Richard Conte; Ronald Bellamy; Jeffrey Kulp

Subject:

INPUT for Exelon Drop-in Briefing Package Chris Drop-in Visit Cover Page ADD to the KEY Messages for Oyster Creek ...

Is Exelon considering whether any commitment changes are needed, regarding Drywell Sand Bed Inspections, based on outage operating experience?

Oyster Creek Performance Highlights Page

1) RENAME "License Renewal" section title to "License Renewal Application Status"

2) ADD a new section just before the"License Renewal Application Status" and title it "License Renewal Commitments Inspection"

3) MOVE the last paragraph (e.g., the inspection stuff) from the old "License Renewal" section into the new LR Commit insp section

4) ADD the following as bullets, highlights, thoughts ... please fix the words, grammar, shorten as needed, and presentation

> Program's first level of defense is to prevent water intrusion into the sand bed region, versus mitigating the consequences of water in the sand bed bays. There is very little history to demonstrate the strippable coating has been successful to prevent water intrusion, based on inconsistent leakage monitoring prior to 2006.

> The 2008 sand bed coatings inspection identified a number of deficiencies, such as blisters, seal cracks, rust stains from seal defects and coating blisters, and an area where the coating appeared to not have the 3rd layer of epoxy applied. The 2006 coatings inspection did not identify any coating or seal deficiencies. However, the blister with rust stain did exist in 2006.

> Based on these observations, sand bed coating inspections (visual & UT) once every 4 years for may not provide the confidence level that was initially intended.

> Number of identified issues in 2008 versus 2006

> Leakage monitoring issues

> Sand bed inspections scheduled to finish and be physically closed out, prior to cavity drain down

> A potential for un-identified water intrusion, after a sand bed is closed out, may exist 2

Received: from R1CLSTRO1.nrc.gov ([148.184.99.7]) by R1 MSO1.nrc.gov

([148.184.99.10]) with mapi; Thu, 4 Dec 2008 14:04:39 -0500 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: John Richmond <John.Richmond@nrc.gov>

To: Christopher Newport <Christopher.Newport@nrc.gov>

Date: Thu, 4 Dec 2008 14:05:02 -0500

Subject:

RE: INPUT. for Exelon Drop-in Briefing Package Thread-Topic: INPUT for Exelon Drop-in Briefing Package Thread-Index:

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