05000305/FIN-2010004-05
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Finding | |
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| Title | Unauthorized Entry into an HRA |
| Description | A finding of very low safety significance and an associated NCV of Technical Specification 6.13 was identified by the inspectors after a worker entered a high radiation area on October 15, 2009. Radiation protection did not authorize the worker to enter the area nor was the worker made knowledgeable of the dose rate level in the area. The work was temporarily assigned from the turbine building to the containment building to assist with the cleaning of containment in preparation for containment close out. The worker received a briefing from radiation protection regarding the radiological condition of containment, but was instructed not to enter any high radiation areas. The worker entered the radiological controlled area on radiation work permit 09-0202-1, which allowed access to containment but did not allow access to high radiation areas and the electronic dosimeter worn by the worker was set to alarm at 50 mrem/hour. During the course of the work activity, the worker was instructed to retrieve a piece of equipment from the basement elevation of containment. An unknown individual held the swing gate open, which also blocked the HRA posting, and the worker entered the basement elevation of containment. The worker, alerted to the higher dose rate conditions through an electronic dosimeter alarm, then exited the work area. The worker immediately reported the event to the radiation protection staff who confirmed the basement elevation of containment was a posted HRA and the dose rates were greater than 100 mrem/hour. The maximum dose rate measured by the ED was 106 mrem/hour. The corrective actions taken by the licensee included temporarily restricting the individual\'s further access to the radiologically controlled area and counseling of the individual by the licensee\'s Radiation Protection Manager. The inspectors identified Example 6(h) of IMC 0612, Appendix E, as similar to the performance issue, in that, the worker was neither authorized by radiation protection to work in specific locations within containment, nor was the worker made knowledgeable of the dose rate level in the area. Therefore, in accordance with IMC 0612 and Example 6(h) of Appendix E, the inspectors determined that the performance deficiency was more than minor. Additionally, the performance deficiency impacted the program and process attribute of the Occupational Radiation Safety Cornerstone and adversely affected the cornerstone objective of ensuring adequate protection of worker health and safety from exposure to radiation, in that, unauthorized entry into areas without knowledge of the radiological conditions placed the worker at increased risk for unnecessary radiation exposure. The finding was assessed using the Occupational Radiation Safety SDP and was determined to be of very low safety significance because the problem was not an as-low-as-is-reasonably-achievable planning issue, there were no overexposures nor substantial potential for overexposures given the worker\'s reaction to the electronic dosimeter alarm and the dose rate ranges, and the licensees ability to assess dose was not compromised. The inspectors determined that the cause of this incident involved a cross-cutting component in the human performance area for inadequate work control. Specifically, the licensee did not appropriately coordinate work activities by incorporating necessary to assure human performance (H.3(b)). |
| Site: | Kewaunee  |
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| Report | IR 05000305/2010004 Section 2RS1 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Or Safety |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71124.01 |
| Inspectors (proximate) | R Winter J Jandovitz J Cassidy M Kunowski R Krsek K Barclay P Cardona-Morales |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Kewaunee - IR 05000305/2010004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Kewaunee) @ 2010Q3
Self-Identified List (Kewaunee)
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