05000282/FIN-2012504-01
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Finding | |
|---|---|
| Title | Degraded Emergency Action Level Scheme |
| Description | A finding having a significance of preliminarily White with one AV of 10 CFR 50.54(q)(2) associated with risk-significant planning standard 10 CFR 50.47(b)(4) was identified by the NRC for the licensee\\\'s failure to follow and maintain the effectiveness of its emergency plan. Specifically, from July 24, 2011, until May 18, 2012, Prairie Island Nuclear Generating Plants Unit 1 response to the loss of 1R-50 Shield Building Hi Range Vent Gas Radiation Detector failed to restore the capability to classify Emergency Action Levels (EALs), RG1.1, General Emergency, and RS1.1, Site Area Emergency. On May 17, 2012, Corrective Action Program entry 01338120 was written and identified the incorrect repair priority on 1R-50. The instrument was repaired and returned to service on May 18, 2012. This finding was determined to be more than minor because it was associated with the Emergency Response Organization performance attribute of the Reactor Safety Emergency Preparedness Cornerstone. This finding adversely affected the cornerstone objective of ensuring that the licensee is capable of implementing adequate measures to protect the health and safety of the public in the event of a radiological emergency. This finding was evaluated in accordance with IMC 0609, Appendix B, Emergency Preparedness Significance Determination Process. As Appendix B was revised in February 2012, the finding was evaluated using both the version in effect at the time of the violation and the current version. Under both versions, other than changing the names of the involved Section and Sheet/Attachment, there was no effect on the final outcome. The issue was determined to be a Failure to Comply. The risk was evaluated using Section 4.0 of IMC 0609 and Sheet 1, Failure to Comply, in the previous revision, and Section 5.0 and Attachment 2, Failure to Comply Significance Logic, in the current revision, along with their associated narratives. With EALs, RG1.1 and RS1.1, ineffective, the inspectors considered mitigating factors, such as alternative EALs, within the same initiating condition and determined the alternative EALs were such that an accurate declaration of the initiating condition would have been made. Therefore, the inspectors determined that no loss of Risk-Significant Planning Standard (RSPS) function existed. However, the alternative EAL classifications would have been delayed, and, therefore, the event would have been declared in a degraded manner. The finding was preliminarily determined to be of low to moderate safety significance (White) in that ineffective EALs, RG1.1, and RS1.1 existed, degraded an RSPS function, and affected the ability of the licensee to properly classify events involving a radiological release. A cross-cutting aspect (H.1(a)) was identified within the decision making component. The licensees risk-significant decision concerning the timely corrective actions to restore the failed 1R-50 Shield Building Hi Range Vent Gas Radiation Detector did not use a systematic process to ensure safety was maintained. A lack of formally defined authority and roles for decisions and communications precluded the appropriate interdisciplinary input, evaluation, and repair of this equipment. |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2012504 Section 1EP5 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | Violation: White |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71114.05 |
| Inspectors (proximate) | J Beavers M Garza M Speck R Skokowskid Funkj Beavers K Barclay K Stoedter R Jickling |
| CCA | , |
| INPO aspect | DM.1 |
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Finding - Prairie Island - IR 05000282/2012504 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2012Q4
Self-Identified List (Prairie Island)
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