ENS 51859
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ENS Event | |
|---|---|
22:20 Apr 8, 2016 | |
| Title | Offsite Notification Due to Oil Leak in a Switchyard Transformer Oil System |
| Event Description | At 1657 EDT on April 8, 2016, an oil leak developed from the station's switchyard transformer no. 4. Approximately 25,000 gallons of oil has leaked within the transformer's containment berm. At 1820 EDT on April 8, 2016, DC Cook environmental personnel determined that approximately 2000 gallons of oil had leaked outside of the containment berm onto the ground. None of the oil has made it to any nearby drains. Leak has stopped and cleanup is ongoing. D.C. Cook has notified the State of Michigan and local authorities. The NRC Resident Inspector was notified.
This notification is being made in accordance with 10 CFR 50.72(b)(2)(xi) due to notification of offsite agencies. |
| Where | |
|---|---|
Cook  Michigan (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-1.5 h-0.0625 days <br />-0.00893 weeks <br />-0.00205 months <br />) | |
| Opened: | Richard Harris 20:50 Apr 8, 2016 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Apr 8, 2016 |
| 51859 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 547292020-05-27T13:12:00027 May 2020 13:12:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Actuation of Sirens ENS 540362019-04-30T00:29:00030 April 2019 00:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Spurious Actuation of an Emergency Siren ENS 529672017-09-13T04:47:00013 September 2017 04:47:00 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 Due to Letdown Relief Valve Discharge to the Pressurizer Relief Tank ENS 525852017-03-01T18:03:0001 March 2017 18:03:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Offsite Agencies Due to Sulfuric Acid Leak within the D.C. Cook Protected Area ENS 520652016-07-06T04:38:0006 July 2016 04:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Manual Reactor Trip and Unusual Event Declaration Due to Steam Leak in Turbine Building ENS 518592016-04-08T22:20:0008 April 2016 22:20:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Leak in a Switchyard Transformer Oil System ENS 508222015-02-13T18:15:00013 February 2015 18:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Michigan Osha ENS 506972014-12-20T17:12:00020 December 2014 17:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Leak from Main Turbine Lube Oil System ENS 504982014-09-28T12:30:00028 September 2014 12:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Activation of an Emergency Siren ENS 504622014-09-16T19:19:00016 September 2014 19:19:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notifications and Press Release Regarding Onsite Fatality ENS 503862014-08-21T06:10:00021 August 2014 06:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Suspected Fuel Oil Leak to the Environment ENS 501882014-06-11T03:27:00011 June 2014 03:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Inadvertent Activation of an Emergency Siren ENS 493642013-09-20T02:30:00020 September 2013 02:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Inadvertent Activation of an Emergency Siren ENS 489452013-04-19T03:12:00019 April 2013 03:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Activation of an Emergency Siren ENS 487472013-02-12T20:30:00012 February 2013 20:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Offsite Agencies Due to Discovery of Potential Human Remains ENS 487312013-02-07T22:35:0007 February 2013 22:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Related to Death of Contractor Onsite ENS 478642012-04-26T02:46:00026 April 2012 02:46:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Offsite Agencies Due to Oil Spill ENS 471942011-08-23T18:24:00023 August 2011 18:24:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of an Unusual Event Due to a Seismic Event ENS 462342010-09-08T11:47:0008 September 2010 11:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Body Discovered in the Owner Controlled Area ENS 460372010-06-23T18:28:00023 June 2010 18:28:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Declaration of Unusual Event Due to Seismic Event ENS 441472008-04-18T10:02:00018 April 2008 10:02:00 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 Seismic Activity 2020-05-27T13:12:00 | |
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