The Fort Calhoun nuclear power plant shut down after springing a water leak in the containment area, officials said.
Operators took the Omaha, NE-based plant offline Monday morning to repair a water leak on one of the plant’s four reactor coolant pumps, the utility said. The water that leaked remained inside the plant’s containment building where workers were able to collect and treat it. The plant, workers and the general public are in no danger.
Omaha Public Power District (OPPD) said the plant’s shutdown will not cause a service interruption to customers. The length of the shutdown will depend on the extent of the repairs needed to fix the problem.
Fort Calhoun started back up in December 2013 after being offline since April 2011, when it went down for scheduled refueling. It was in a cold shutdown as floods overtopped the banks of the Missouri River, then placed under federal control after an electrical fire broke out and officials found a number of safety violations.
Since then, OPPD has spent $177 million on recommissioning the plant. That work entailed clearing a 450-item checklist of corrective items issued by the NRC.