ML091960601
| ML091960601 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 06/17/2009 |
| From: | NRC Region 1 |
| To: | |
| References | |
| FOIA/PA-2009-0070, FOIA/PA-2011-0289 | |
| Download: ML091960601 (1) | |
Text
OYSTER CREEICMITETINPC Per IP 71003 - App. C 2515, n uen Procedures STATUS AND NEXT STEPS (As of 12102108)
DISCUSSION:
(b)(5) y (b)(5)
J the Deputy Division Director of DRS assigned EB 1 action in order to nUIId consensus in this area by developing and implementing an action plan.
On December 2, 2008, Region I staff met with cognizant representatives of DRP PB6, NRRIDLR, OGC, SLO, PAO in order to dry-run the exit notes for the subject insoection. The telephonic exit with Amornan A.
parate brief for the S and have expressE Amergen started u-
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rns with the problems
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-Ily the license rE n I also issued a.
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And exec Based on anagement decided t i Amergen because t (b)(5)
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- 1. A stripl usion into the.a*
.the reactor I.,
- a. The strippable coating initially limited leakage into the cavity drain trough at < 1 gpm.
- b. On Nov 7, the leakage rate took a step change to 4 to 6 gpm. Water was subsequently identified in 4 sand bed bays (the sand bed bays are air connected to the area between the drywell shield wall and the shell itself).
- 2. Sand bed region drains will be monitored daily during refueling outages.
- a. Daily, the sand bed drains were remotely monitored by checking poly bottles, attached via tygon tubing to funnels hanging below the drain lines.
- b. The drain lines were not directly observed and in fact, 2 of the 5 tygon tubing became disconnected from the funnels and the drains to funnel to tygon tubing interface were not readily visible to those monitoring the poly bottles.
- 3. Reactor cavity seal leakage trough drains and the drywell sand bed region drains will be monitored for leakage, periodically.
- a. The drain line for the trough drain was found isolated during a boroscope examination to verify no line blockage during a period when the strippable coating in the refueling cavity was mitigating leakage into this area.
- b. When the strippable coating started to give way, the drain line was clear to perform its function and it was being periodically monitored.
wMith theFomd An/omted.
MC~deie With the Freedom of Inomviafln AOL/
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