05000261/FIN-2011002-04
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Finding | |
|---|---|
| Title | Refueling Water Storage Tank Operability While On Purification |
| Description | An Unresolved Item is being opened to provide for additional inspection in response to an NRC identified issue regarding Refueling Water Storage Tank (RWST) operability with the purification loop in operation. The inspectors noted on March 8, 2011, that the RWST purification loop had been in operation for approximately 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br />. The piping and components of the purification loop are shown on plant drawings to be beyond the seismic qualification boundary for the RWST. The licensee had previously reviewed this issue using AR 422778 in late 2010 and determined it was acceptable to place the RWST on purification without declaring the RWST inoperable. The inspectors questioned the basis for that conclusion. The licensee removed the RWST from purification and put administrative controls in place to prevent use of the purification loop until the issue is resolved. The licensee is continuing to evaluate the use of the RWST purification loop and the impact on operability of the RWST. Additional review by the NRC is required following the completion of the licensees evaluation. This review will also determine whether this issue represents a performance deficiency. The issue will be identified as URI 05000261/2011002-4, Refueling Water Storage Tank Operability While On Purification |
| Site: | Robinson  |
|---|---|
| Report | IR 05000261/2011002 Section 1R15 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | G Wilson J Griffis J Hickey J Rivera R Kellner R Musser A Nielsen C Dykes C Scottj Hickeyr Musser E Lea C Scott W Deschaine M Riches |
| INPO aspect | |
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Finding - Robinson - IR 05000261/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Robinson) @ 2011Q1
Self-Identified List (Robinson)
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