ML091900513
| ML091900513 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 12/04/2008 |
| From: | Richmond J NRC Region 1 |
| To: | Conte R NRC Region 1 |
| References | |
| FOIA/PA-2009-0070 | |
| Download: ML091900513 (6) | |
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John Richmond, ("I Thursday, December 04, 2008 6:46 AM Richard Conte Revised OC Exit Notes OC LRI 2008-07_Exit Notes_12-3-08_rev-3.doc High attached I*n'W I~~I aloiefwd wmasts In acordacewiwth the Freedom of InfoaOflq Att Exemptio5' 1
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([148.184.99.10]) with mapi; Thu, 4 Dec 2008 06:45:16 -0500 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>
Importance: high Date: Thu, 4 Dec 2008 06:45:36 -0500
Subject:
Revised OC Exit Notes Thread-Topic: Revised OC Exit Notes Thread-Index: AcIWBdJaCW+jYBd+SOOS9Wy21 IpPjQ==
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P r
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ýal n ti-ff Jaý Oyster Creek License Renewal Commitments Inspection Exit Meeting - Dec 3, 2008
Introductions
" NRC Region 1
- NRC HQ
- NRC Residents
" AmerGen
" NJ DEP (Observers)
Excellent Overall Cooperation from everybody
>>> use of the Certrec Internet Database was quite helpful Special Thanks 9 Pete Tamburro (LR Program Owner)
- Chris Hawkins (NDE Level-Ill)
" Cal Taylor & Jhansi Kandasamy Tough Inspection Schedule & Difficult Inspection
" LR outage schedule slipped due to unexpected issues
" Bay 11 Coating Blisters
" Bay 3 Moisture Barrier Seal Problem
" Cavity Leakage and. Water Intrusion into.4 bays
" As a result, our inspection ran into a 2nd on-site week and a 3rd in-office week Documentation Team Report 45 days after the Exit Meeting (mid Jan)
Exec Summary of Inspection Results
" Satisfactory Actions to evaluate, primary containment structural integrity (b)(5)
These items were also commitments to Generic Letter 87-05
- Strippable Coating to Prevent Water Intrusion
" Monitoring of Sand Bed Drain Lines
" For the selected samples:
(b)(5)
- Sampled 9 AMPs to Verify Commitment Implementation
" No Problems or Issues Identified, with Two/Three (??) Notable Exceptions (b)(5)
" Perform Full Scope inspections of sand bed region every other outage
" Monitor drywell trenches for water every refueling outage, until trenches are restored
- Verified 2 commitment changes were done iaw Exelon commitment management program
" Bolting Integrity Program (commitment 12)
- Rx Vessel Axial Weld Examination Relief Request (commitment 48)
(b)(5)
(b)(5)
Pay Page 1 of 5
P/r*-De on a/n,o-"atn.. Off'tial Ute /.I, Inspection Details -- Two (?? Three) Minor Issues Will be Documented (1) Commitment 27, ASME Section Xl, Subsection IWE, Item (2) Not Fully Implemented 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.
o The strippable coating initially limited leakage into the cavity drain trough at < 1 gpm. On Nov 7, the leakage rate took a step change to 4 to 6 gpm. Water was subsequently identified in 4 sand bed bays.
This was also a previous commitment made in response to Generic Letter 87-05 V
I (b)(5)
(2) Commitment 27, ASME Section XI, Subsection IWE, Item (3) Not Fully Implemented Sand bed region drains will be monitored daily during refueling outages.
9 Sand bed drains were remotely monitored by checking poly bottles, attached via tygon tubing to funnels hanging below the drain lines. The drain lines were not directly observed.
- This was also a previous commitment made in response to Generic Letter 87-05 (b)(5)
ANY QUESTIONS at this point Prle'-dec,~ional ý6fomn on -- OffjaI U~e O'f Pg 2o Page 2 of 5
>>> I recommend we NOT document this issue in the IR
>>> This issue is NOT in the public domain
>>> make this an Observation that does NOT go into the report (3) Commitment 27, ASME Section XI, Subsection IWE, Item (3) --:.Commitment Satisfied Reactor cavity seal leakage trough drains and the drywell sand bed region drains will be monitored for leakage. Periodically.
- Drain line was found isolated during a boroscope examination to verify no *ine blockage.
- ?? This was also a previous commitment made in response to Generic Letter 87-05 (b)(5)
Pr.4ecýý l~ In~rrn1~ion -- 0Q1
ýclal,ye c/YPae3f Page 3 of 5
Pages 6 through 7 redacted for the following reasons:
(b)(5)