ML091900431

E-mail from J. Richmond of USNRC to Various, Regarding Oyster Creek Lri Daily Update Oct 31

ML091900431
Person / Time
Site:	Oyster Creek
Issue date:	10/31/2008
From:	Richmond J NRC Region 1
To:	Bellamy R, Conte R, David Pelton, Darrell Roberts NRC Region 1
References
FOIA/PA-2009-0070
Download: ML091900431 (2)

Text

John Richmond From: John Richmond Sent: Friday, October 31, 2008 8:21 PM To: Richard Conte; Darrell Roberts; Ronald Bellamy; David Pelton Cc: Jeffrey Kulp; Stephen Pindale; Michael Modes; Glenn Meyer; Marjorie McLaughlin; Justin Heinly; Timothy OHara; Diane Screnci; Joseph Schoppy

Subject:

OC LRI Daily Update Oct 31 OC LRI Outage Commitments Inspection Day 5 Drywell Structural Integrity Issues or Concerns

1) One sandbed bay (exterior drywell shell), appears to have a coating defect. Preliminary info is based on a verbal report, given to me during an impromptu status update, from the Exelon NDE Level-Ill Technical Lead for sandbed NDE. One bay had a pinhole in the drywell shell coating with some "bleed through" that was "rust colored." The NDE Level-Ill couldn't remember the bay number (there are pictures). I raised the question with Reg Affairs, as to Whether this coating defect could be indicative of any "on-going corrosion" beneath the epoxy coating. In parallel with my talking with Reg Affairs, OC engineering got this information at about the same time that I did. Engineering is developing a plan to resolve this issue. Initial thoughts are to excavate the area to identify the cause (e.g., subsurface corrosion) and extend of condition. Plan and time table are TBD.

2) All sandbed bays have been NDE UT and VT examined (NDE examination records not yet prepared). No other potential coating defects were identified. Some cracks in the floor epoxy sealer and in the moisture barrier seal were identified, and are planned to be reworked. Rework plan and time table are TBD. Four sandbed bays were independently inspected by Tim O'Hara, only floor cracks in one bay were identified. Tim was not in the bay with the coating defect.

Inspection Progress

1) Progress remains Slow. Drywell NDE activities still behind schedule.

2) If AmerGen doesn't have sufficient NDE data available for review by COB Monday, I will probably reschedule the Exit.

Inspection Schedule

1) Currently plan to work Sunday. Have arranged for a telephone update tomorrow (Saturday) on sandbed coating defect. Am available to come in on Saturday, if needed.

2) Paul Kaufman will be on-site Monday to assist.

Today's Inspection Activities

1) Verified daily leakage checks on sandbed bay drain lines [no leakage] and cavity trough drain line [about as 1/8 inch stream]. Administrative limit on cavity trough leakage is < 12 gpm.

2) Inspected portions of a cable test. Nothing noteworthy.

LR Commitment Issues or Concerns (b)(5)

LL NJ State Interface Remains Good. Rich Pinney seems very satisfied.

Team Location: OCAB 2nd Floor, Visiting Exec Office, 609-9714830 kbifmtbointlfth fsmd asdeleted in aM Wit the Freedom of Infomndon A&

FOINPA 00 70

Received: from R1CLSTR01 nrc.gov ([148.184.99.7]) by R1 MS01 .nrc.gov

([148.184.99,101) with mapi; Fri, 31 Oct 2008 20:21:27 -0400 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: John Richmond <John.Richmond@nrc.gov>

To: Richard Conte <Richard.Conte@nrc.gov>, Darrell Roberts

<Darrell.Roberts@nrc.gov>, Ronald Bellamy <Ronald.Bellamy@nrc.gov>, David Pelton <David.Pelton@nrc.gov>

CC: Jeffrey Kulp <Jeffrey.Kulp@nrc.gov>, Stephen Pindale

<Stephen. Pindale@nrc.gov>, Michael Modes <Michael. Modes@nrc.gov>, Glenn Meyer

<Glenn.Meyer@nrc.gov>, Marjorie McLaughlin <Marjorie. McLaughlin@nrc.gov>,

Justin Heinly <Justin.Heinly@nrc.gov>, Timothy OHara <Timothy.OHara@nrc.gov>,

Diane Screnci <Diane.Screnci@nrc.gov>, Joseph Schoppy

<Joseph.Schoppy@nrc.gov>

Date: Fri, 31 Oct 2008 20:21:25 -0400

Subject:

OC LRI Daily Update Oct 31 Thread-Topic: OC LRI Daily Update Oct 31 Thread-Index: Ack4gKEiWwVCI7a9S2m917wfCwcaOQAyjWwwAG MnH FAAM68PQA==

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