ENS 47748

v t e ENS Event
08:00 Mar 16, 2012
Title	Refueling Water Storage Tank Connected to an Unqualified System
Event Description	The Refueling Water Storage Tank (RWST) was placed on purification in accordance with [site procedure] OP-913, Refueling Water Purification Pump Operation, as directed from OP-301-1, Chemical and Volume Control System (Infrequent Operation), at 0400 [EDT] on 3/16/2012 to support make up of level to the RWST. This condition, connection of the purification loop, is not currently allowed based on unresolved seismic concerns with purification piping to the RWST. This was later discovered during a log review at 0545, and operators were immediately directed to remove the RWST from purification. ITS 3.5.4 was applied from 0400 based on when it was determined that this condition had been entered. ITS 3.5.4 was exited at 0622 when the RWST was removed from purification. This is being reported pursuant to 50.72(b)(3)(v), Event or Condition That Could Have Prevented Fulfillment of a Safety Function. The licensee notified the NRC Resident Inspector.

ENS 47748 +/-
Where
Robinson South Carolina (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+2.93 h0.122 days <br />0.0174 weeks <br />0.00401 months <br />)
Opened:	Warren Wonka 10:56 Mar 16, 2012
NRC Officer:	Vince Klco
Last Updated:	Mar 16, 2012
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v • d • e

v t e Emergency Notification System
Robinson with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2015-01-29T00:57:00 [Table view]
[ENS list for Robinson]

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