ENS 47901
ENS Event | |
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13:35 May 6, 2012 | |
Title | Offsite Notification Made for Npdes Noncompliance |
Event Description | This event is being reported in accordance with 10 CFR 50.72(b)(2)(xi). On May 6, 2012, during daily chlorination activities, it was identified that the National Pollutant Discharge Elimination System (NPDES) permit limit for Total Residual Chlorine was exceeded between approximately 0935 hours0.0108 days <br />0.26 hours <br />0.00155 weeks <br />3.557675e-4 months <br /> [EDT] and 0947 hours0.011 days <br />0.263 hours <br />0.00157 weeks <br />3.603335e-4 months <br /> [EDT] when the noncompliance was corrected. The maximum measured value was 0.29 mg/L, which exceeded the NPDES Maximum Concentration Limit of 0.2 mg/L.
On May 6, 2012, at approximately 1930 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.34365e-4 months <br /> [EDT], a 'Noncompliance Notification for Exceedance of a Daily Maximum Discharge Limit' was made to the Ohio Environmental Protection Agency. The cause of the NPDES permit noncompliance is under investigation. Chlorination evolutions have been suspended pending investigation results. At the time of the event, the plant was in Mode 1 at 100 percent rated thermal power. This event is also being reported in accordance with the plant's operating license, appendix B, Environmental Protection Plan, which states, in part, that any occurrence of an unusual or important event that indicates or could result in 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. The licensee notified the NRC Resident Inspector. |
Where | |
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Perry ![]() Ohio (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+7.3 h0.304 days <br />0.0435 weeks <br />0.01 months <br />) | |
Opened: | Glendon Burnham 20:53 May 6, 2012 |
NRC Officer: | Pete Snyder |
Last Updated: | May 6, 2012 |
47901 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 572382024-07-24T14:46:00024 July 2024 14:46:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 569142024-01-05T20:52:0005 January 2024 20:52:00 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 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 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 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 2024-07-24T14:46:00 | |