ENS 46374
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ENS Event | |
|---|---|
21:51 Oct 28, 2010 | |
| Title | Offsite Notification Due to Sodium Hypochlorite Leak from Underground Piping |
| Event Description | On October 28, 2010, at 1740 hours0.0201 days <br />0.483 hours <br />0.00288 weeks <br />6.6207e-4 months <br />, the plant entered the Off-Normal Instruction for spills and unauthorized discharges. At 1751 hours0.0203 days <br />0.486 hours <br />0.0029 weeks <br />6.662555e-4 months <br />, notification of a sodium hypochlorite spill was made to the U.S. Environmental Protection Agency (EPA), National Response Center. At the time of the event, the plant was in Mode 1 at 100% power. The sodium hypochlorite spill is believed to be the result of a leak in an underground piping supply line to the Emergency Service Water pump house. The leak is estimated to be approximately 130 gallons of a 12.5% Sodium Hypochlorite (Bleach) solution (80 gallons in a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period is the reportable quantity). The associated chlorination systems have been isolated, and current storage tank level is stable, indicating no more leakage in progress.
Additionally, the Ohio EPA: State Emergency Response Commission, Perry Township Fire Department, Lake County Emergency Planning Committee, and the U.S. Coast Guard were notified in accordance with plant procedures. This event is also being reported in accordance with the Operating License, Appendix B, Environment Protection Plan, which states in part, 'Any occurrence of an unusual or important event that indicates or could result in significant environmental impact causally related to plant operation shall be recorded and reported to the NRC within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> followed by a written report ..' Specifically, ' ..unanticipated or emergency discharge of waste water or chemical substances.' The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Perry  Ohio (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Other Unspec Reqmnt | |
| Time - Person (Reporting Time:+-1.43 h-0.0596 days <br />-0.00851 weeks <br />-0.00196 months <br />) | |
| Opened: | Tim Pry 20:25 Oct 28, 2010 |
| NRC Officer: | Dong Park |
| Last Updated: | Oct 28, 2010 |
| 46374 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Perry with Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
WEEKMONTHYEARENS 569142024-01-05T20:52:0005 January 2024 20:52:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 565882023-06-23T19:21:00023 June 2023 19:21:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Environmental ENS 511982015-07-02T12:30:0002 July 2015 12:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Actuation ENS 507182015-01-06T21:30:0006 January 2015 21:30:00 Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification Made to Offsite Government Agency ENS 499872014-04-02T18:01:0002 April 2014 18:01:00 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 Toxic Gas Release ENS 497462014-01-21T06:40:00021 January 2014 06:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Discovered in Groundwater ENS 487692013-02-19T18:03:00019 February 2013 18:03:00 Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xii), Transport of a Contaminated Person Offsite Transport of Potentially Contaminated Worker and Subsequent Fatality ENS 480692012-07-03T21:38:0003 July 2012 21:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Actuation ENS 485442012-06-03T05:00:0003 June 2012 05:00:00 Other Unspec Reqmnt Discovery of After-The-Fact Emergency Condition (Unusual Event) ENS 479022012-05-07T16:33:0007 May 2012 16:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Actuation ENS 479012012-05-06T13:35:0006 May 2012 13:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Made for Npdes Noncompliance ENS 473662011-10-21T21:20:00021 October 2011 21:20:00 Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Fuel Oil Spill ENS 468032011-04-29T15:00:00029 April 2011 15:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Fatality of a Contract Employee ENS 488942010-11-17T04:00:00017 November 2010 04:00:00 Other Unspec Reqmnt After the Fact Discovery of an Unusual Event Entry Condition ENS 463742010-10-28T21:51:00028 October 2010 21:51:00 Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sodium Hypochlorite Leak from Underground Piping ENS 457982010-03-28T04:00:00028 March 2010 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Press Release Due to Lube Oil Fire Affecting Reactor Feed Pump ENS 454232009-10-09T19:44:0009 October 2009 19:44:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Spill of Hydraulic Fluid ENS 441112008-03-31T19:50:00031 March 2008 19:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Ohio Epa Concerning Non-Compliance with Hazardous Waste Removal Requirements ENS 436532007-09-19T19:25:00019 September 2007 19:25:00 Other Unspec Reqmnt, 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Unknown Discharge and 24 Hour Report Per Appendix B of Operating License ENS 432822007-04-05T04:00:0005 April 2007 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xii), Transport of a Contaminated Person Offsite Potentially Contaminated Person with a Back Injury Transported to Lake East Hospital ENS 426932006-07-08T13:18:0008 July 2006 13:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Exceeded Limit for Suspended Solids in Discharge ENS 426772006-06-30T19:18:00030 June 2006 19:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Non-Credible Security Threat Made Against Plant ENS 425522006-05-04T18:30:0004 May 2006 18:30:00 Other Unspec Reqmnt 24-Hour Condition of License Report Involving Fire Protection Plan Violation ENS 424762006-04-05T16:00:0005 April 2006 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State and Local Officials Concerning Tritium Detection in Drain System ENS 423302006-02-11T20:15:00011 February 2006 20:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared Due to a Fire in a Ventilation Fan ENS 423292006-02-10T18:45:00010 February 2006 18:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 422722006-01-18T15:00:00018 January 2006 15:00:00 Other Unspec Reqmnt 24-Hour Condition of License Report Involving Fire Protection Program Non-Compliance ENS 408212004-06-16T18:00:00016 June 2004 18:00:00 Other Unspec Reqmnt 24 Hour Notification of Plant Exceeding Its Power Limit 2024-01-05T20:52:00 | |
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