05000286/FIN-2015002-02
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Finding | |
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| Title | Failure to Maintain the Effectiveness of Emergency Plan Due to an Inadequate Basis for Emergency Action Level Thresholds |
| Description | The inspectors identified a Green NCV of 10 CFR 50.54(q)(2) for Entergys failure to maintain the effectiveness of an emergency plan that meets the requirements in Appendix E to Part 50 and the planning standards of 50.47(b). Specifically, Entergy did not use accurate facility effluent parameters in its emergency classification and emergency action level (EAL) scheme. Entergy subsequently determined an acceptable facility parameter and corrected the EAL scheme. This finding was determined to be more than minor because it is associated with the Procedure Quality attribute of the Emergency Preparedness cornerstone and adversely affected the cornerstone objective to ensure that Entergy is capable of implementing adequate measures to protect the health and safety of the public in the event of a radiological emergency. The inspectors determined this finding was an emergency classification system finding and therefore evaluated the finding in accordance with IMC 0609, Appendix B, Section 5.4, 10 CFR 50.47(b)(4), Emergency Classification System. The finding was determined to be of very low safety significance (Green) because the issue had a very low likelihood of resulting in an early General Emergency (GE) declaration, but the finding more closely fit the would result in unnecessary classification significance category rather than the would result in unnecessary protective actions for the public significance category. Specifically, the inspectors considered that (1) the inadequate concentration threshold is used as a backup to the effluent threshold which reflects actual plant vent flow, (2) the calculation input discrepancy is small compared to the uncertainty of the setpoint calculation, and (3) although the protective action recommendation (PAR) would be made before offsite dose exceeded the Environmental Protection Agency protective action guideline, an early PAR during an actual release sequence would still serve to provide dose savings to the public. The inspectors determined that the finding has a crosscutting aspect in the area of Human Performance, Challenge the Unknown, because Entergy did not stop when faced with uncertain conditions of the plant vent flowrates and EAL threshold calculation assumptions. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000286/2015002 Section 4OA2 |
| Date counted | Jun 30, 2015 (2015Q2) |
| Type: | NCV: Green |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | A Bolger A Burritt B Pinson G Newman J Bream J Furia J Stewart R Barkley R Montgomery S Rich T Setzer |
| Violation of: | 10 CFR 50.54 10 CFR 50.47(b)(4) 10 CFR 50.47 10 CFR 50.54(q) |
| CCA | H.11, Challenge the Unknown |
| INPO aspect | QA.2 |
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Finding - Indian Point - IR 05000286/2015002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2015Q2
Self-Identified List (Indian Point)
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