ENS 46969
ENS Event | |
|---|---|
09:02 Jun 19, 2011 | |
| Title | Unusual Event Declared Due to Missouri River Flooding |
| Event Description | At 0402 CDT on 6/19/2011 a Notification of Unusual Event was declared due to the elevation of the Missouri River reaching 899.1 feet above mean sea level. This is above the Emergency Action Level HU1.5 elevation of 899 feet. The Missouri River is expected to crest at 899.5 feet within the next couple of days. It is expected that the elevation of the Missouri River will remain above 899 feet for most of the summer.
Actions are in progress in accordance with the site flooding procedure, including strategic placement of sand bags at building entrances and important facilities. There is no major plant equipment out of service at this time. Personnel access to the site is not presently impeded. Emergency evacuation routes remain available. The licensee notified the NRC Resident Inspector. The licensee notified the State of Nebraska Emergency Management Agency, the State of Missouri State Emergency Management Agency, the Nemaha County Emergency Operations Center, the Richardson County Emergency Operations Center and the Atchison County Emergency Operations Center.
On 6/19/2011 at 0447 CDT, Nebraska Public Power District issued a press release concerning the declaration of a Notification of Unusual Event declared today at 0402 for the Missouri River elevation above 899 feet above sea level. This is a four hour report per 10CFR50.72(b)(2)(xi) for any event or situation for which a news release is planned or notification to other government agencies has been or will be made which is related to heightened public or government concern. State and local agencies were notified of the expected news release during the NOUE notification. At 0402 CDT, Missouri River elevation was at 899.1 feet. No updated river projections are available at this time. Level is expected to remain at least below plant grade elevation. No deficiencies with the nearby protective levees have been identified surrounding the plant. Actions are in progress in accordance with the site flooding procedure, including strategic placement of sandbags at building entrances and important facilities. Personnel access to the site is not presently impeded, and required emergency evacuation routes remain available. The licensee notified the NRC Resident Inspector. Notified R4DO (Werner).
Cooper Nuclear Station exited the Notification of Unusual Event (NOUE) at 0947 CDT on 7/12/11. River level is currently at 895.8 feet MSL which is below the NOUE threshold of 899 feet MSL. River level is forecast to continue going down. The licensee is expecting to issue a press release today. The licensee notified the NRC Resident Inspector, State of Missouri, Nebraska Emergency Management Agency, Nemaha County Sheriff, Richardson County Sheriff, Missouri FEMA, and the Atchison County 911 center. Notified the R4DO (Cain), IRD (Morris), NRR (Thorpe), DHS (Strangfeld), and FEMA (Hollis).
A press release has been issued to inform the public of Cooper Nuclear Station's exit from the Notification of Unusual Event, regarding high Missouri River level. The initial entry into the Notification of Unusual Event occurred on 06/19/2011 and was exited on 07/12/2011. The highest river level observed at [Cooper] was 900'-8". Plant grade is at 903'-6". The press release reports the current Missouri river level as 895.8' and forecasted to continue to lower. Notified the R4DO(Cain). |
| Where | |
|---|---|
Cooper  Nebraska (NRC Region 4) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-3.58 h-0.149 days <br />-0.0213 weeks <br />-0.0049 months <br />) | |
| Opened: | Benjamin Kehoe 05:27 Jun 19, 2011 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Jul 12, 2011 |
| 46969 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Cooper with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |
WEEKMONTHYEARENS 567862023-10-10T20:53:00010 October 2023 20:53:00
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Dropped Control Rod During Refueling Operations ENS 503382014-08-03T20:49:0003 August 2014 20:49:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Pager Notification System Message ENS 503052014-07-24T17:13:00024 July 2014 17:13:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Message Transmitted Via Emergency Response Siren ENS 497912014-02-04T13:38:0004 February 2014 13:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Fatality on Site ENS 477602012-03-22T15:34:00022 March 2012 15:34:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notice of Unusual Event - Potentially Hazardous Atmosphere Due to Freon Leak ENS 469702011-06-20T00:40:00020 June 2011 00:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Release of Oil to the Missouri River ENS 469692011-06-19T09:02:00019 June 2011 09:02:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Missouri River Flooding ENS 469412011-06-09T14:20:0009 June 2011 14:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Concerning Inability to Meet Sludge Pond Discharge Permit Due to River Levels ENS 467562011-04-14T21:25:00014 April 2011 21:25:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Nebraska Department of Environmental Quality ENS 460332010-06-22T07:06:00022 June 2010 07:06:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration River Water Level Above 899 Feet ENS 460172010-06-16T17:33:00016 June 2010 17:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to the Nebraska Department of Environmental Quality ENS 454282009-10-12T21:03:00012 October 2009 21:03:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Small Fire Lasting Greater than 10 Minutes ENS 429852006-11-11T11:30:00011 November 2006 11:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to an Electrical Fire Involving Heat Trace ENS 427282006-07-25T20:41:00025 July 2006 20:41:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Fire Alarm ENS 424662006-04-02T19:04:0002 April 2006 19:04:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Adverse Weather Conditions ENS 424312006-03-20T13:56:00020 March 2006 13:56:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Small Fire Inside Protected Area ENS 418282005-07-08T14:15:0008 July 2005 14:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Related to Improperly Packaged Radioactive Waste Material Shipment ENS 402622003-10-20T20:26:00020 October 2003 20:26:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Nebraska Department of Environmental Quality ENS 402542003-10-16T17:30:00016 October 2003 17:30:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event at Cooper Due to Small Fire at a Turbine Bearing ENS 402142003-10-02T14:10:0002 October 2003 14:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to U.S. Fish and Wildlife Service and Nebraska Game and Parks Commission 2023-10-10T20:53:00 | |