05000397/FIN-2009005-06
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title 10 CFR 50.54(q), requires in part that a power reactor licensee follow an emergency plan that meets the requirements of 50.47(b) and Appendix E to Part 50. Section 50.47(b)(9) requires a licensee have adequate methods, systems and equipment for assessing and monitoring actual or potential offsite consequences of a radiological emergency. Contrary to the above, between October 30, 2008, and August 20, 2009, the licensee failed to have adequate methods, systems and equipment for assessing actual or potential offsite consequences of a radiological emergency. Specifically, on October 30, 2008, the licensee failed to provide compensatory actions following identification that, (1) the choice between the A or B meteorological data channel affected the accuracy of emergency action level determinations and dose assessments used in protective-action decision making, and (2) that errors could be made in determining the atmospheric Stability Class because the allowable tolerance band for temperature sensors encompassed four Stability Classes. These issues were identified in licensee Self-Assessment 2008-043, and entered into the licensees correction action system as Action Requests 00185009 and 00203405. This finding is of very low safety significance because it is a failure to comply with NRC requirement 50.54(q), is associated with risk significant planning standard 50.47(b)(9) as defined by Manual Chapter 0609, Appendix B, Section 2, and the finding is not either a planning standard functional failure or degraded function because the license continued to have the capability to perform accurate dose assessments under most circumstances |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2009005 Section 4OA7 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | L Ricketson P Elkmann R Cohen W Walker M Hayes R Schmitt |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2009Q4
Self-Identified List (Columbia)
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