05000458/FIN-2014004-05
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Title 10 CFR 20.1501(a) requires that each licensee make, or cause to be made, surveys that may be necessary for the licensee to comply with the regulations in 10 CFR Part 20 and that are reasonable under the circumstances to evaluate the extent of radiation levels, concentrations or quantities of radioactive materials, and the potential radiological hazards that could be present. Pursuant to 10 CFR 20.1003, a survey means an evaluation of the radiological conditions and potential hazards incident to the production, use, transfer, release, disposal, or presence of radioactive material or other sources of radiation. Title 10 CFR 20.1201(c) states, in part, the assigned deep-dose equivalent must be for the part of the body receiving the highest exposure. Contrary to this requirement, the licensee did not make or cause to be made surveys that were necessary for the licensee to comply with the regulations of 10 CFR 20.1201(c). Specifically, licensee representatives did not perform surveys to evaluate the radiation dose gradient in the reactor cavity, caused by placement of the reactor pressure vessel head, during work on March 15 and 16, 2013. The failure to provide dose gradient surveys was identified by the outage control center radiation protection representative while reviewing radiation survey records. Licensee personnel documented the failure to survey for radiation dose gradients in Condition Report CR-RBS-2013-02426 and performed an apparent cause evaluation. During follow-up actions, licensee personnel identified an example in which a worker received 104 millirem of unplanned radiation dose and reported it as an occupational exposure control effectiveness performance indicator occurrence. Using Inspection Manual Chapter 0609, Appendix C, "Occupational Radiation Safety Significance Determination Process," the inspectors determined the violation had very low safety significance because: (1) it was not an as low as is reasonably achievable (ALARA) finding, (2) there was no overexposure, (3) there was no substantial potential for an overexposure, and (4) the ability to assess dose was not compromised. |
| Site: | River Bend  |
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| Report | IR 05000458/2014004 Section 4OA7 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | P Elkman S Makor A Barrett A Meyen E Schrader G George G Larkin H Freeman J Sowa L Ricketson N Greene |
| Violation of: | 10 CFR 20.1201, Occupational Dose Limits 10 CFR 20.1501, Surveys and Monitoring 10 CFR 20, Standards for Protection Against Radiation |
| INPO aspect | |
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Finding - River Bend - IR 05000458/2014004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (River Bend) @ 2014Q3
Self-Identified List (River Bend)
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