05000341/FIN-2010005-03
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Finding | |
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| Title | Failure of Condensate Filter Demineralizer D Main Drain Valve |
| Description | A self-revealed finding of very low safety significance (Green) and associated NCV of Technical Specification (TS) 5.5.4.c, Radiation Effluent Controls Program, were self-revealed for failure to monitor an effluent release path when the condensate filter demineralizer (CFD) D drain valve failed in the open position resulting in approximately 100,000 gallons of water being released into the radwaste and turbine buildings. An approximately 100-gallon mixture of the water and resin entered the plant sanitary waste system and traveled outside of the protected area as an unmonitored release. The design of the sanitary pipe that allowed crossing the power block boundary without a monitoring system was a performance deficiency. The licensee immediately stopped pumping sanitary waste and closed all facilities onsite until the system had been cleaned. The inspectors determined the finding was more than minor in accordance with IMC 0612, because the performance deficiency is associated with of the Plant Facilities/Equipment attribute of the Public Radiation Safety Cornerstone and the performance deficiency adversely affects the associated cornerstone objective. Specifically, the performance deficiency resulted in the unmonitored release of radioactive material to the public domain. The finding was assessed using the Effluent Release branch of the Public Radiation Safety SDP and was determined to be of very-low-safety significance, because the resultant dose impact to a member of the public from the radioactive release was less than the dose values in Appendix I to 10 CFR 50 and 10 CFR 20.1301 (e). Therefore, the finding is classified as Green. This finding has a cross-cutting aspect in the area of Human Performance, Decision-Making, Systematic Process. Specifically, the inspectors determined that design of the sanitary waste system was not properly evaluated and reviewed in a systematic process to meet the UFSAR requirements. |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2010005 Section 4OA3 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Pr Safety, Or Safety |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | R Jickling B Jose M Mitchell M Bielby J Neurauter D Jones R Morris D Kimble V Meghani R Jones J Bozga |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - Fermi - IR 05000341/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2010Q4
Self-Identified List (Fermi)
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