ML091960601

Commitment Inspection Per IP 71003 - App. C Mc 2515, Infrequent Procedures Status and Next Steps, Rev. 4, as of 12/02/2008, with Handwritten Notes

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- . . ) /,./ rns with the problems /V*) . -* /.. -Ily the license rE n I also issued a. L/

And exec Based on anagement decided t . i Amergen because t )5 (b)(5)

1. A stripl usionI.,into the .a* .the reactor

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.

wMiththeFomd An/omted.

With the Freedom of Inomviafln AOL/

MC~deie

-ns