05000269/FIN-2011003-01
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Finding | |
|---|---|
| Title | Inadequate Design Verification of the NPBS-BWST/SSF Trench Foundation |
| Description | A self-revealing finding was identified for the licensees failure to implement the requirements of the modification program to ensure the natural phenomenon barrier system (NPBS) borated water storage tank (BWST)/standby shutdown facility (SSF) trench foundation modification did not adversely impact the yard drain systems function. The condition was entered into the licensees corrective action program (CAP) as problem investigation program (PIP) O-11-3285. The failure to implement the requirements of the modification program to verify the NPBS BWST/SSF trench foundation modification did not adversely impact flood protection features was a performance deficiency (PD). The PD was more than minor because it was associated with the Mitigating Systems cornerstone attribute of Protection Against External Factors - Flood Hazard and adversely affected the cornerstone objective in that the design modification bypassed the yard drain system which was credited for external flood protection. The finding was of very low safety significance (Green) because the rainwater intrusion did not result in the loss of operability or functionality of safety-related structures, systems, and components (SSCs). The cause of the finding was directly related to the appropriately planning work activities cross-cutting aspect of the Work Control component in the area of Human Performance because the licensee failed to incorporate environmental conditions which may impact SSCs into the modification. H.3(a) (Section 1R01 |
| Site: | Oconee  |
|---|---|
| Report | IR 05000269/2011003 Section 1R01 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.01 |
| Inspectors (proximate) | A Sabisch A Vargas B Collins C Rapp G Ottenberg J Bartley J Hamman K Ellis R Carrion |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Oconee - IR 05000269/2011003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Oconee) @ 2011Q2
Self-Identified List (Oconee)
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