05000321/FIN-2010004-09
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Finding | |
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Title | Licensee-Identified Violation |
Description | A licensee-identified violation was discovered on August 3, 2010 when Unit 2 reactor building High-High-High northeast diagonal sump alarm was received in the control room and the licensee failed to classify that as a Notice of Unusual Event as required by emergency procedures. 10 CFR 50.47(b)(4) requires, in part, that a standard emergency classification and action level scheme is used by the nuclear facility licensee. Contrary to this requirement on August 3, 2010 the standard emergency classification and action level was not used by the licensee to classify the above condition as a Notice of Unusual Event. Per the licensees emergency action level procedure 73EP-EIP-001-0, Emergency Classification and Initial Actions, Version 18.0, a High-High-High northeast diagonal sump level exceeded the maximum normal operating levels specified in emergency operating procedure 31EO-EOP- 014-1(2), SC-Secondary Containment Control RR-Radioactivity Release Control, requiring entry into emergency action level HU1, Notice of Unusual Event. The significance of this violation was screened using the Manual Chapter 0609 Appendix B, Emergency Preparedness Significance Determination Process. The violation screened as Green using Sheet 1 of Appendix B, because although a risk significant performance standard problem occurred, this issue was not a risk significant performance standard functional failure or degraded function. The violation also screened as Green using Sheet 2 of Appendix B, because the actual event problem only resulted in a Notice of Unusual Event. This issue was identified by the licensee and reported to the NRC as event notification 46145 and entered into the corrective action program as CR 2010109834 |
Site: | Hatch ![]() |
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Report | IR 05000321/2010004 Section 4OA7 |
Date counted | Sep 30, 2010 (2010Q3) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | S Shaeffer G Johnson M Cain E Morris P Niebaum K Schaaf D Hardage |
INPO aspect | |
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Finding - Hatch - IR 05000321/2010004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2010Q3
Self-Identified List (Hatch)
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