05000263/FIN-2013005-03
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Finding | |
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| Title | |
| Description | A finding of very low safety significance was self-revealed due to the licensee having unplanned and unintended occupational collective radiation dose because of deficiencies in the licensees radiological work planning and work control program. Specifically, the licensee failed to properly incorporate as-low-as-reasonably-achievable (ALARA) strategies and insights while planning and executing two work activities during the refueling outage (RFO) 26. The first was the inservice inspection (ISI) examinations performed in the drywell. The initial dose estimate for this activity was 7.500 person-rem. However, 13.173 actual person-rem of dose was received. The second activity was associated with drywell snubber inspection activities within the drywell. The initial estimate for this activity was 3.600 person-rem. However, 7.243 actual person-rem of dose was received. These results were caused by poor radiological planning and work execution of these tasks. The licensee entered this issue into their CAP as Action Reports 1404210 and 1404244. The finding was more than minor because it was associated with the program and process attribute of the Occupation Radiation Safety Cornerstone. Additionally, this issue affected the cornerstone objective of ensuring the adequate protection of the workers health and safety from exposure to radiation from radioactive material during routine civilian nuclear reactor operation. Additionally, the finding is very similar to Inspection Manual Chapter (IMC) 0612, Appendix E, Examples of Minor Issues, Example 6.i. This example provides guidance that an issue is not minor if the actual collective dose exceeded 5 person-rem and exceeded the planned, intended dose by more than 50 percent. The inspectors determined that this finding was of very low safety significance because Monticello Nuclear Generating Plants current 3-year rolling average collective is 110.633 person-rem (2010-2012). This is less than the 240 person-rem/unit referenced within IMC 0609, Appendix C, Occupational Radiation Safety Significance Determination Process. This finding had a cross-cutting aspect in the area of Human Performance, related to the cross-cutting aspect of work control, in that the outage plan did not adequately incorporate action to address the impact of work on different job activities. |
| Site: | Monticello  |
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| Report | IR 05000263/2013005 Section 2RS2 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | Finding: Green |
| cornerstone | Or Safety |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71124.02 |
| Inspectors (proximate) | C Moore J Laughlin K Riemer M Bielby M Learn P Voss P Zurawski S Bell |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Monticello - IR 05000263/2013005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Monticello) @ 2013Q4
Self-Identified List (Monticello)
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