ENS 46941
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ENS Event | |
|---|---|
14:20 Jun 9, 2011 | |
| Title | Offsite Notification Concerning Inability to Meet Sludge Pond Discharge Permit Due to River Levels |
| Event Description | Notification was made to the Nebraska Department of Environmental Quality regarding the inability to conform to the NPDES permit, since the discharges from the sludge pond to the Missouri River are uncontrolled at this time. As a result of high Missouri River levels, the sludge pond was overtopped. The discharges into this pond are subject to NPDES requirements. The inputs into the sludge pond are described in the NPDES permit as low volume wastewater. There are three outfalls which discharge into the pond. Outfall 002B is described as Clearwell Discharge plus Outfall 004 Emergency Overflow. Outfall 002C is described as Floor Drains. Outfall 004 is described as Reverse Osmosis Reject and Boiler Blowdown Waste streams. There is no radiological contamination in the pond.
Additionally, the current and projected flooding conditions of the Missouri River high river levels have resulted in some media inquiries regarding potential changes in plant operation. Public information personnel and Management have responded to these inquiries with information on the impact of river level and preparations for additional actions should conditions warrant additional protective actions. Current river level is approximately 896 ft. MSL, three feet below the elevation which requires declaration of a NOUE, and approximately 4.8 feet below the crest of the 1993 flood, which was the highest flood recorded at the site. Current river elevation is 7 feet below grade elevation. A press release is not planned at this time. River level is currently projected to be 897.5 ft by Tuesday 6/14. Current river level is characterized as Moderate Flooding by the National Weather Service. There are currently no operational problems due to river conditions. The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Cooper  Nebraska (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-0.33 h-0.0138 days <br />-0.00196 weeks <br />-4.52034e-4 months <br />) | |
| Opened: | John Myers 14:00 Jun 9, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Jun 9, 2011 |
| 46941 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 567862023-10-10T20:53:00010 October 2023 20:53:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Spurious Alarm Actuation ENS 557032022-01-13T14:06:00013 January 2022 14:06:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Spurious Siren Actuation ENS 540992019-06-04T13:15:0004 June 2019 13:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Issuance of Press Release Due to Spurious Actuation of Emergency Sirens ENS 539342019-03-15T10:46:00015 March 2019 10:46:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration En Revision Imported Date 3/25/2019 ENS 534162018-05-22T14:00:00022 May 2018 14:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Unplanned Public Notification During a Drill ENS 530742017-11-16T02:07:00016 November 2017 02:07:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Public Prompt Notification System Capability ENS 530692017-11-14T17:18:00014 November 2017 17:18:00 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 Hydrogen Line Leak ENS 527652017-05-19T13:05:00019 May 2017 13:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Nonfunctional Radio Transmission Tower Affects Tone Alert Radios ENS 522792016-10-04T20:30:0004 October 2016 20:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Cooper Nuclear Station Loss of Tone Alert Radios ENS 522622016-09-25T14:15:00025 September 2016 14:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Cooper Nuclear Station Loss of Tone Alert Radios ENS 518872016-04-27T13:23:00027 April 2016 13:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radio System Tower ENS 516172015-12-22T01:55:00022 December 2015 01:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radio System Tower ENS 513472015-08-26T13:50:00026 August 2015 13:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Regarding Material Being Released and Recovered ENS 509242015-03-25T22:19:00025 March 2015 22:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Effluent Below National Pollutant Discharge Elimination System Ph Limits ENS 505302014-10-13T18:27:00013 October 2014 18:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - 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 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 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 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 | |
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