05000461/FIN-2012002-03
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Incomplete ED Dose Rate Alarm Evaluation |
| Description | The inspectors identified an Unresolved Item concerning events that occurred on December 17, 2011, when three workers received electronic dosimeter (ED) dose rate alarms while working in the reactor cavity. The workers were lifting and setting the drywell head bolts in the reactor cavity, an area with high levels of radioactive contamination. The handling of these bolts caused contamination to build up on the workers gloves. The contamination levels on the gloves became high enough and caused the ED worn on the chest to alarm. Two of the alarms occurred when the worker handled the ED to read the accumulated dose. The third worker alarm occurred when his hands came close to the chest and the ED reported dose rates of 1195 mrem/hour deep dose and 1405 mrem/hour shallow dose. The initial investigation performed by the licensee evaluated the whole body dose to the workers. This investigation determined that the workers were briefed to receive dose rate alarms, therefore the events were not entered into the licensees corrective action program. At the time of the inspection, the licensee had not completed an evaluation of the radiological dose to the extremity (hands) from the build-up of contamination on the gloves worn by the workers that caused the ED alarms. Additionally, the licensee could not demonstrate the radiological controls that were in place when the alarms occurred. The issue is categorized as an Unresolved Item pending completion of a revised evaluation and the NRCs review of it |
| Site: | Clinton  |
|---|---|
| Report | IR 05000461/2012002 Section 2RS1 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | URI: |
| cornerstone | Or Safety |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71124.01 |
| Inspectors (proximate) | D Mcneil B Kemker R Walton S Mischke D Lords C Lipa J Draper B Winter V Myers S Bellb Kemkerc Brown D Lords D Szwarc J Bozga J Cassidy M Ring R Orlikowski S Bell S Mischke |
| INPO aspect | |
| ' | |
Finding - Clinton - IR 05000461/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Clinton) @ 2012Q1
Self-Identified List (Clinton)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||