05000445/FIN-2014003-03
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Finding | |
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| Title | Maintenance of a Standard Action Level Scheme for Main Steam Line Monitors |
| Description | Introduction. The inspectors identified an unresolved item related to maintaining the effectiveness of the licensees emergency plan that meets planning standard 50.47(b)(4), which requires, in part, that a standard emergency classification and action level scheme is in use by the licensee. Specifically, several main steam line monitors were out of service for extended periods of time without apparent contingency actions in place to ensure the correct emergency action level would be implemented. Description. On November 20, 2013, the licensee initiated Condition Report CR-2013-011914 identifying that the main steam line radiation monitors had a trend of being out-of-service for significant time periods. Monitor 1-RE-2328 was out of service for 110 and 210 days on two separate occasions. Monitor 1-RE-2326 was out of service for 77 and 157 days on two separate occasions. Monitor 1-RE-2325 was out of service for 61 days. Four other monitors from the two units had been out of service, some more than once, for periods of five days or less. There are four online main steam line monitors for each unit. The licensee addressed the trend by trouble-shooting, repairing, and replacing detectors. The main steam line radiation monitors are important to emergency preparedness because they are inputs into the emergency action levels and define the initiating conditions related to abnormal radiation releases/radiation effluent emergency declarations. The inspectors determined that the licensee had taken appropriate action to initiate corrective action and repair. The licensee also tracked the out of service time of the monitors as operational focus items and in the station tactical equipment issues list. All eight main steam line monitors are currently in service with zero out of service days in 2014. However, there was no evidence that contingency actions were implemented to maintain the approved emergency action level scheme when the monitors were out of service. Title 10 CFR 50.54(q) requires licensees to maintain the effectiveness of an emergency plan that meets the requirements in the planning standards of 50.47(b). Title 10 CFR 50.47(b)(4) requires a standard emergency classification and action level scheme, the bases of which include facility system and effluent parameters, is in use by the nuclear facility licensee. This issue was identified as an unresolved item because the NRC has not determined whether the licensee has adequately implemented planning standard 10 CFR 50.47(b)(4). Specifically, the NRC has not determined whether the emergency action level initiating condition was rendered ineffective, such that, any general emergency would not be declared for a particular off-normal event in an accurate and timely manner or in a degraded manner. The licensee has entered this issue into the corrective action program as Condition Report CR-2014-005874. This issue is identified as unresolved item URI 05000445/2014003-03; 05000446/2014003-03, Maintenance of a Standard Action Level Scheme for Main Steam Line Monitors. |
| Site: | Comanche Peak  |
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| Report | IR 05000445/2014003 Section 1EP5 |
| Date counted | Jun 30, 2014 (2014Q2) |
| Type: | URI: |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71114.05 |
| Inspectors (proximate) | D Proulx G Guerra J Kramer J Watkins L Brandt L Carson N Greene R Kumana S Alferink W Sifre W Walkerr Kumanaw Walker G Guerra J Kramer J Melfi M Wilk |
| INPO aspect | |
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Finding - Comanche Peak - IR 05000445/2014003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2014Q2
Self-Identified List (Comanche Peak)
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