05000315/FIN-2008003-05
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Finding | |
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| Title | Failure to Effectively Implement Dose Reducing Radiological and Engineering Controls Associated with Modifications to the Reacotr Recirculation Sump Strainer During U2C17 |
| Description | A self-revealed finding of very low safety significance was identified for the failure to effectively implement dose reducing radiological and engineering controls consistent with maintaining occupational doses as-low-as-is-reasonably-achievable (ALARA). The failure resulted in an actual dose outcome that was not consistent with the planned, intended dose for work associated with modifications to the reactor recirculation sump strainer during Refuel Outage U2C17. Corrective actions were implemented to address organization and programmatic deficiencies, as well as capturing lessons learned to support the detailed planning necessary for the installation of the modification on Unit 1. The finding was more than minor because it was associated with the Occupational Radiation Safety Cornerstone attribute of ALARA planning/dose projection, and affected the cornerstone objective of programs and processes for ensuring adequate protection of worker health and safety from exposure to radiation, in that, ineffective work control and ALARA planning deficiencies contributed to an actual increase in worker doses in excess of five person-rem and exceeded the licensees initial intended dose estimates by more than 50 percent. This finding was of very low safety significance because it did not involve: (1) an overexposure; (2) a substantial potential for an overexposure; or (3) an impaired ability to assess dose. It did involve ALARA planning and controls; however, the three-year rolling average for DC Cook Plant is less than SDP threshold of 135-person-rem for Pressurized Water Reactors. The finding was determined to be associated with a cross-cutting aspect in the area of human performance regarding work controls (IMC 0305 H.3(a)) |
| Site: | Cook  |
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| Report | IR 05000315/2008003 Section 2OS2 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | Finding: Green |
| cornerstone | Or Safety |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71121.02 |
| Inspectors (proximate) | M Holmberg R Jickling J Jandovitz B Kemker J Lennartz R Telson A Garmoe F Tran P Laflamme M Phelan |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Cook - IR 05000315/2008003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2008Q2
Self-Identified List (Cook)
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