ML072850133

Oyster Creek September 2007 Evidentiary Hearing - Intervenors Exhibit 27, E-mail from Tom Quintenz to Kevin Muggleston, Et Al

ML072850133
Person / Time
Site:	Oyster Creek
Issue date:	02/01/2006
From:	Quintenz T Exelon Corp
To:	Beck G, Muggleston K Exelon Corp, Office of Nuclear Reactor Regulation
SECY RAS
References
50-219-LR, AmerGen-Intervenor-27, RAS 14340
Download: ML072850133 (1)

Text

Citizens Exhdibits 27 1111IN t, kr,*(6 L -N 6c I-s /Rq3II/3 O by. Applicant/Lic 9-r"! K'2t ý"

. CCfý 7:Z NR Staft From: Quintenz, Tom <u777teq@ucm.com> IX)lM1Mon J itness/Panel 1,1A ,

Sent: Wednesday, February 1, 2006 5:02 PM Acont ftn: ADrrD'REJE POKwIhDPAINg To: Muggleston, Kevin <u999kpm@ucm.com>; Beck, Ge4NlolWltA*b(,ucnco~m> /

Cc: Polaski, Frederick W <u000fwp@ucm.com>; Warfel Sr, Donald B

<u00ldbw@ucm.com>; Fuhrer, Edwin C <n5917@ucm.com>; Miller, Mark A. -

PE <u00 Imam@ucm.com>

Subject:

RE: RAI regarding corrosion of carbon steel mechanical components in containment atmosphere At this time the monitoring and limits for Oxygen are dictated by Technical Specifications, and Operating Procedures. Technical Specifications would limit Oxygen Levels to less than 5%.

-- Original Message--

From: Muggleston, Kevin DOCKETED Sent: Tuesday, January 31, 2006 4:35 PM USNRC To: Beck, George October 1, 2007 (10:45am)

Cc: Polaski, Frederick W; Warfel Sr, Donald B; Quintenz, Tom; Fahrer, Edwin C; Miller, Mark A. -PE

Subject:

RAI regarding corrosion of carbon steel mechanical components in containment atmosphere OFFICE OF SECRETARY RULEMAKINGS AND Action Required: Yes ADJUDICATIONS STAFF Recommendation: Meeting prior to NRC call Draft RAI D-RAI 3.4-4 challenges our position regarding corrosion of carbon steel surfaces of mechanical components inside containment subject to the inert environment. The staff acknowledges the cited past precedence, but requests additional justification, such as "monitored dlata from the Oyster Creek containment nitrogen environment to indicate that the free oxygen levels have been continuously maintained below threshold levels and would continue to be maintained during the period of extended operation." I am not aware of any "threshold levels" for oxidation. NRC is requesting additional justification, or a commitment for a one-time inspection, Ed Fuhrer has identified several instances of carbon steel surface corrosion in the RBCCW system inside containment. It may be appropriate to respond based on OE, and offer a on'e-time inspection of RBCCW system components.

In any event, we need to discuss as a group before the NRC call, as I need direction on how we want to respond to this question.

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