05000346/FIN-2017004-02
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Finding | |
|---|---|
| Title | Interface Between New Accident Range Ventilation Monitors and the Emergency Preparedness Dose Assessment Program |
| Description | During inspection activities associated with the accident range station vent monitor, the inspectors identified an unresolved item (URI) associated with the interface between the monitor and the Dose Assessment Program used to project dose to members of the public during potential accident conditions. Description: The licensee replaced the accident range station vent monitors in 2014 using ECP 040006, Replace Kaman Radiation Monitors. The replacement monitors were manufactured by a different company than the original monitors, had different detection capabilities, different system calibration, and different computer hardware to convert detector output into usable information. The licensee could not immediately provide specifics regarding the interface between the new accident range monitors and the program used during accident conditions for providing dose projections and the resulting protective action recommendations. The inspectors focus of concern was how the new accident range monitors accounted for the potentially rapidly changing mixture of radioactive gases during the early phase of a postulated accident. Consequently, this issue remains under review by the NRC awaiting for additional information from the licensee to verify the new monitor interface to determine if it represents a performance deficiency and is categorized as a URI. (URI 05000346/201700403, Interface Between New Accident Range Ventilation Monitors and the Emergency Preparedness Dose Assessment Program) |
| Site: | Davis Besse  |
|---|---|
| Report | IR 05000346/2017004 Section 2RS6 |
| Date counted | Dec 31, 2017 (2017Q4) |
| Type: | URI: |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71124.06 |
| Inspectors (proximate) | D Mills J Beavers M Bielby J Cassidy M Doyle N Feliz M Garza J Neurauter J Rutkowski J Wojewoda J Cameron |
| INPO aspect | |
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Finding - Davis Besse - IR 05000346/2017004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Davis Besse) @ 2017Q4
Self-Identified List (Davis Besse)
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