Document: NUREG-0800
Document ID: 55e187c7-8e17-41ed-a88e-0205d1317fb6
Document Type: srp
Title: - 12.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1315/ML13151A475.pdf
Revision Date: 2023-06
Chapter: 12
Section ID: 12.3
CFR Part: 
CFR Title: 

Content:
r discharge tunnel via fire protection system and a portion of the service water system due to operator error. Procedure Compliance Outdoor storage of contaminated equipment Contamination leached from equipment onto soil. Inadequate procedures or operational controls Condensate Storage Tank Water overflowed from Condensate Storage Tank into a tunnel. Tunnel had potential to allow small amount of this water to permeate into the ground. Inadequate procedures Retention tank containing radioactive liquid Retention tank containing uranium bearing liquid overflowed onto soil. Tank was undergoing maintenance and was not tight at the time. Inadequate maintenance Equipment Circulating Water Blowdown Line Vacuum Breakers in blowdown line leaked while radioactive liquid traveled down the pipe. Inadequate maintenance Flange in feed water system venturi Leak in system. Under drain system captured most of tritium from leakage. Inadequate design/maintenance. Steam Generator Tube leak Liquid leaked from degraded Steam Generator Tube. Inadequate design/maintenance Tanks Storm Drains around Liquid Waste Holdup Tank Liquid leaked through cracks in the asphalt berm around a Liquid Waste Holdup Tank Area into the groundwater. Inadequate design/maintenance A-- 9 - Revision 5 – September 2013 SSC Occurrence Problem Fuel Storage and Handling SFP Estimated 141,500 gallons of SFP water was released in the gap between two reactor buildings into other buildings and surrounding environment. Operational/configuration control errors resulted in deflation of SFP seals and resultant leak. Inadequate design and operational/configuration control error. SFP Liner leakage and hairline crack in Fuel Storage Building wall. Inadequate design, bad weld SFP Failure of curtain drain Inadequate design SFP SFP water leaked into narrow seismic gap due to clog in tell- tale drain system. Inadequate maintenance SFP Defect in liner of cask loading pool resulted in leakage from cask loading pool. Inadequate