ML091690639

E-mail from J. Richmond of USNRC to Various, Regarding Oc Update Call on Stripple Coating & Sand Bed Drain Commitments

ML091690639
Person / Time
Site:	Oyster Creek
Issue date:	11/20/2008
From:	Richmond J NRC Region 1
To:	Baty M, Kandasamy J, David Pelton, Stephen Pindale, Lisa Regner, Darrell Roberts, Chutima Taylor, Doug Tifft Exelon Corp, Office of Nuclear Reactor Regulation, NRC/OGC, NRC Region 1
References
FOIA/PA-2009-0070
Download: ML091690639 (1)

Text

Nancy McNamara From: John Richmond Sent: Thursday, November 20, 2008 12:21 PM To: Calvin.Taylor@exeloncorp.com; jhansi.kandasamy@exeloncorp.com; Darrell Roberts; Stephen Pindale; Doug Tifft; David Pelton; Lisa Regner; Mary Baty Cc: ron.zak@dep.state.nj.us; richard.pinney@dep.state.nj.us; Richard Conte; Ronald Bellamy; Jeffrey Kulp; Justin Heinly; Diane Screnci; Neil Sheehan; Nancy McNamara; Marjorie McLaughlin

Subject:

RE: OC Update Call on Strippable Coating &sand Bed Drain Commitments AmerGen's update will discuss their basis that the commitments were adequately implemented Tellecom Update Date Today (11/20)

Time 3:00 PM Bridge 888-946-6308 (b)(2)High 3 Duration 1/2 hour 8 bridge lines are available The 2 commitments in question

1) SER Commitment 27, ASME Section XI, Subsection IWE. Item (2), A strippable coating will be applied to the reactor cavity liner to prevent water intrusion into the gap between the drywell shield wall and the drywell shell during periods when the reactor cavity is flooded.

AmerGen was asked to provide the following information

> Performance of the strippable coating during the two previous outages (2006 & 2004)

> Any condition reports (CRs), issue reports (IRs), or action requests (ARs) associated with the strippable coating from the 2006 outage (2) SER Commitment 27, ASME Section XI, Subsection IWE. Item (3), The sand bed region drains will be monitored daily during refueling outages.

AmerGen was asked to provide their basis to conclude this commitment had been adequately

,satisfied, in light of the following

> Sand bed drains were monitored by checking poly bottles, attached to the drain lines by tygon tubing. The drain lines could not be directly observed.

> After the cavity was drained, 2 of 5 tygon tubes were found to be disconnected and laying on the floor.

> Sand bed Bay 11 drain line poly bottle was empty during each daily check until Nov 15 (cavity was drained on Nov 12), when it was found full (> 4 gallons). Bay 11 was entered, visually inspected, and found dry. AmerGen believes that the 4+ gallons had been held up in the catch funnel (not directly observable). This implies that the Bay 11 drain line had not be draining into the poly bottle for some period of time.

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