Flooding Risk
A flood assessment performed by the Nuclear Regulatory Commission in 2010 indicated that the Fort Calhoun Nuclear Generating Station, "did not have adequate procedures to protect the intake structure and auxiliary building against external flooding events." The assessment also indicated that the facility was not adequately prepared for a "worst-case" flooding scenario. A number of potential flood water penetration points were discovered that could have impacted the raw feed water supply to the cooling system, the auxiliary water supply and main switchgear (electrical) room. By early 2011, corrective measures had been implemented. In 2009 the NRC did a flood risk assessment which found that the protection measures were only designed to handle floods to 1,009 feet (308 m) above sea level which was below the NRC mandated elevation of 1,014 feet (309 m) for the plant. The risk assessment stated that at 1,010 feet (310 m), flooding would have "led to a 100 percent chance of a fuel damage if the emergency gasoline pumps didn't work."
Read more about this topic: Fort Calhoun Nuclear Generating Station
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