Fire extinguished at Nebraska Public Power District's Cooper Nuclear Station

Published: Dec. 29, 2018 at 7:59 PM CST
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According to a news release from Nebraska Public Power District's Corporate Media and Media Services Supervisor Mark Becker, a "notification of an unusual event" was declared at Nebraska Public Power District's Cooper Nuclear Station at 9:04 a.m. Saturday.

Nebraska Public Power District's safety and plant personnel detected a fire within a pipe chase.

The station's fire brigade extinguished the fire at 9:51 a.m.

A second news release provided updated information on the event:

"As of 3:44 p.m. today, Nebraska Public Power District (NPPD) exited the emergency classification level called a “notification of an unusual event” (NOUE) at its Cooper Nuclear Station. NPPD initially declared the NOUE at 9:04 a.m. today after discovering a hazardous gas environment in the basement of the plant. While investigating the gas, safety and plant personnel detected a fire within a pipe chase.

The station’s fire brigade extinguished the initial and active fire at 9:51 a.m. but support staff from the plant’s

emergency response organization were brought in to assess damage caused by the fire, provide engineering support, and maintain a fire watch in the area until there was no longer any potential for a fire to restart. The fire was declared out as of 3 p.m., after completion of overhaul activities and assurance that a re-flash would not occur.

At no time did plant conditions threaten public safety. The plant remained stable and operating throughout the event

and continues to operate at this time.

A NOUE is defined as unusual events, minor in nature, which have occurred or are in progress which indicate a potential degradation in the level of station safety at the station. If placed on a scale of 1 to 4, with 1 being the least serious level of an emergency and 4 being the most serious level of an emergency, a NOUE would equal a 1.

In situations like this, plant personnel follow an emergency response plan and notify appropriate local, county, state, and federal agencies as part of their processes.

Cooper Nuclear Station is located three miles southeast of Brownville near the Missouri River. It is owned and operated by the Nebraska Public Power District, with headquarters in Columbus. More information will be provided as it becomes available."