05000247/FIN-2015003-05
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Unit 2 TS 5.4.1.a requires that the procedures listed in Attachment A to RG 1.33, Quality Assurance Program Requirements, Revision 2, be established and implemented. Attachment A states that instructions should be prepared, as appropriate, for draining and changing mode of operations for containment cooling systems. NEI 07-07, Objective 1.2.2, requires licensees to evaluate work practices, such as draining of systems that involve licensed material and for which there is a credible mechanism for the material to reach groundwater. Contrary to the above, Entergy did not evaluate work practices involving changing the mode of operation and draining of the containment spray system (a containment cooling system) to assure that the drainage did not reach groundwater; and as a result, during the Unit 2 refueling outage in March 2014, the containment spray system was drained to a floor drain which subsequently overflowed, spread on the floor of a piping room, and leaked through the floor to groundwater. The violation was identified by Entergy in their investigation of groundwater activity identified at the end of the outage during planned sampling of monitoring wells on the site. The issue is a finding as it affected the Public Radiation Safety cornerstone, since Entergys actions resulted in an unintended abnormal effluent release. This finding was assessed using IMC 0609D, Public Radiation Safety, and was determined to be of very low safety significance (Green) because the subsequent groundwater release was a very small fraction of routine liquid radioactive effluent releases, and did not represent any significant dose impact to the public. Entergy documented the issue in their investigation evaluation (CR-IP2-2014-2564) and corrected the issue by revising their draining procedure OAP-038, Operations Mechanical Equipment Operating Guidelines, to assure that contaminated fluids are not discharged outside of the selected drain point. Entergy also provided training to operators on expectations during draining evolutions to assure contaminated liquids are properly controlled. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2015003 Section 4OA7 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Bolger A Burritt B Pinson G Newman H Gray J Furia J Stewart O Masnyk-Bailey S Barr S Rich |
| Violation of: | Technical Specification - Procedures Technical Specification |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2015003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2015Q3
Self-Identified List (Indian Point)
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