ENS 44291
ENS Event | |
|---|---|
16:30 Jun 12, 2008 | |
| Title | Unusual Event Declared Due To A Major Loss Of Response And Communications Capability |
| Event Description | At 1130CDT on 6/12/2008, the Duane Arnold Energy Center was informed due to flooding in the local area that access to the Joint Information Center (JIC), the Offsite Radiological Analytical Laboratory (ORAL), the Offsite Relocation and Reassembly Area (ORRA), and the Emergency Operations Facility (EOF) have been lost. This constitutes a reportable condition per 10CFR50.72(b)(3)(xiii) due to the major loss of offsite response capability. The ORAL function will be maintained by the Iowa State Hygienics Lab. At the present time the remaining facilities are being relocated or moved to the Linn County Emergency Operations Center (EOC) located at the Kirkwood Community College Campus. Also, although multiple roads in the area are closed due to high water level, evacuation capability in the EPZ is being maintained. Also, at 1256CDT on 6/12/2008, Duane Arnold Energy Center was informed that local commercial phone service through the Palo phone system has been lost. This service also includes our ability to fax and access the internet. We have also lost our FTS2001 ENS connection. Again, per 10CFR50.72(b)(3)(xiii) this represents a major loss of offsite communication capability. Offsite communications is being maintained currently thorough our microwave and cell phone systems. Onsite communications are possible through our in house PBX and page system. Contingency plans are in effect to setup a mobile satellite uplink that would include voice and data capability.
The NRC Resident Inspector has been informed.
At 1430CDT on 6/12/2008, Duane Arnold Energy Center lost communications capability via commercial phone line, FT2001 ENS system and the microwave phone system. This meets the threshold criteria of an EAL classification of an Unusual Event. At 1440CDT the Shift Manager declared that Unusual Event and notifications were made to Linn County Emergency Management Agency, Benton County Emergency Management Agency and the Iowa Homeland Security Emergency Management Division. Currently, offsite communication is still possible via our installed cell phone and satellite systems and onsite communications remain possible via our PBX and page system. The NRC Resident Inspector has been informed. Notified ET Member (B. Mallet), all IRD Management (B. McDermott, W. Gott, M. Leach), Commissioners' Staffs (D. Skeen, T. Hipschman, S. Baggett, J. Thoma, D. Coe), EDO Staff (J. Adams), PAO (E. Brenner), OCA (D. Decker), RDOs (R. Summers, B. Bonser, P. Louden, G. Miller), FEMA, DOE, USDA, and HHS.
On 6/12/2008 at 1444 FPLE-DAEC declared an unusual event (SU6.2) due to loss of all offsite communication. These systems included the FTS 2001, microwave phone lines, and commercial phone lines due to flooding of the Palo, Iowa phone station. Since that date FPLE-DAEC has reestablished two of the three offsite communication methods. The microwave telephone system has been restored and the commercial phone lines have been restored through a new exchange through the town of Shellsburg, Iowa, which was not affected by the flood. With these two lines of offsite communications reestablished the DAEC will de-escalate from the Unusual event from the loss of offsite communication. FPLE-Duane Arnold will be issuing a press release stating the unusual event has been cancelled. The NRC senior resident inspector has been notified and the state of Iowa, Linn County, and Benton county will be notified. The licensee exited the Unusual Event at 1428 EDT on 06/19/08. Notified R3DO (Kunowski), NRR EO (Fred Brown), IRD MOC (Bill Gott), DHS, and FEMA.
Multiple power sources are now available to the Emergency Operations Facility. The licensee notified the NRC Resident Inspector. Notified the R3DO (Kozak). |
| Where | |
|---|---|
Duane Arnold  Iowa (NRC Region 3) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-1.18 h-0.0492 days <br />-0.00702 weeks <br />-0.00162 months <br />) | |
| Opened: | Doug Peterson 15:19 Jun 12, 2008 |
| NRC Officer: | Karl Diederich |
| Last Updated: | Jul 1, 2008 |
| 44291 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (98 %) |
| After | Power Operation (98 %) |
Duane Arnold with 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
WEEKMONTHYEARENS 548262020-08-10T17:58:00010 August 2020 17:58:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notice of Unusual Event Due to Loss of Offsite Power Due to High Winds ENS 535002018-07-11T05:00:00011 July 2018 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Meteorological Data Unavailable ENS 507432015-01-19T03:31:00019 January 2015 03:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Normal Technical Support Center Power ENS 497472014-01-21T04:30:00021 January 2014 04:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Diesel Generator Out of Service ENS 495572013-11-19T10:20:00019 November 2013 10:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Backup Power Supply Maintenance ENS 494152013-10-07T15:27:0007 October 2013 15:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance Causing Loss of Meteorological Tower Data ENS 493832013-09-25T08:04:00025 September 2013 08:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Normal Tsc Power Due to Transformer Isolation ENS 493572013-09-19T09:50:00019 September 2013 09:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Diesel Generator Removed from Service for Planned Maintenance ENS 490922013-06-06T13:00:0006 June 2013 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Power Supply Removed from Service for Planned Maintenance ENS 486482013-01-03T15:30:0003 January 2013 15:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Erds Capability ENS 485102012-11-16T14:10:00016 November 2012 14:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Out of Service Due to Planned Maintenance ENS 482962012-09-11T08:08:00011 September 2012 08:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Non-Functional Due to Planned Maintenance ENS 482142012-08-21T09:07:00021 August 2012 09:07:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service ENS 475572011-12-29T15:10:00029 December 2011 15:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Plant Process Computer ENS 474902011-11-30T15:35:00030 November 2011 15:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Plant Process Computer Out of Service Due to Planned Maintenance ENS 474312011-11-11T16:21:00011 November 2011 16:21:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Inoperable Due to Planned Maintenance ENS 473542011-10-19T15:00:00019 October 2011 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Diesel Non-Functional ENS 473502011-10-18T09:50:00018 October 2011 09:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Diesel Generator Out of Service ENS 472352011-09-01T15:50:0001 September 2011 15:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Diesel Generator Non-Functional ENS 471382011-08-10T06:00:00010 August 2011 06:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Potential Loss of Tsc Operability While Performing Planned Maintenance ENS 468132011-05-03T18:44:0003 May 2011 18:44:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(1), 50.54(x) TS Deviation Alert Declared Due to Fire Affecting Access to Safety Related Equipment ENS 465422011-01-14T14:40:00014 January 2011 14:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Maintenance ENS 453402009-09-11T16:01:00011 September 2009 16:01:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Unavailable Due to Maintenance ENS 442912008-06-12T16:30:00012 June 2008 16:30:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unusual Event Declared Due to a Major Loss of Response and Communications Capability ENS 422992006-02-02T00:55:0002 February 2006 00:55:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Site External Communications ENS 422412006-01-04T17:00:0004 January 2006 17:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Emergency Sirens ENS 409952004-08-28T06:46:00028 August 2004 06:46:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Failure of the Plant Process Computer Due to Loss of Power Supply 2020-08-10T17:58:00 | |