ENS 43703
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ENS Event | |
|---|---|
13:15 Oct 9, 2007 | |
| Title | Elevated Onsite Tritium Levels |
| Event Description | Thirty new ground water monitoring wells were recently installed at Catawba Nuclear Station in support of the Nuclear Energy Institute (NEI) ground water initiative. The initial sampling of one of these wells displayed a level of tritium that triggered the communication protocol of the NEI initiative on ground water protection. The tritium concentration for this well was 42,335 picocuries per liter (pCi/l). The threshold for initiating the communication protocol is 20,000 pCi/l. This well is inside the owner controlled area. Adjacent wells surrounding this well do not have similar tritium levels. The station is continuing to investigate the source of tritium identified in this well. Samples from the remaining wells are far below the communication protocol threshold. There is no public risk associated with this well sample. There is no indication that tritium has migrated off the Catawba site in the ground water at the communication threshold. Also this well is not a drinking water source and therefore, there is no potential dose to plant workers or the public.
The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Catawba  South Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-3.57 h-0.149 days <br />-0.0212 weeks <br />-0.00489 months <br />) | |
| Opened: | Tom Poetzsch 09:41 Oct 9, 2007 |
| NRC Officer: | Jason Kozal |
| Last Updated: | Oct 9, 2007 |
| 43703 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 547122020-05-14T20:30:00014 May 2020 20:30:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Contractor Fatality ENS 537622018-11-30T05:00:00030 November 2018 05:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Contractor Fatality ENS 494572013-10-20T03:30:00020 October 2013 03:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Spill of Water Containing Low-Level Tritium Concentration ENS 490322013-05-15T03:23:00015 May 2013 03:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Leak from Turbine Building Sump Containing Tritium ENS 488782013-04-02T04:00:0002 April 2013 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Technical Support Center Ventilation System Out of Service Due to Planned Maintenance ENS 482132012-08-20T20:45:00020 August 2012 20:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Osha Notified Concerning an Onsite Non-Work Related Fatality ENS 466782011-03-17T16:50:00017 March 2011 16:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Vehicle Fire ENS 459382010-05-20T17:27:00020 May 2010 17:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Bethel Fire Department Responded to Grass Fire Next to Plant ENS 451912009-07-09T02:45:0009 July 2009 02:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Osha Contacted Due to On-Site Fatality ENS 451082009-06-01T13:25:0001 June 2009 13:25:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State Agency ENS 450932009-05-26T16:28:00026 May 2009 16:28:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Failed Npdes Effluent Sample ENS 449442009-03-30T06:55:00030 March 2009 06:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Other Government Agency of On-Site Fatal Heart Attack ENS 444582008-09-02T20:48:0002 September 2008 20:48:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Potential Water Flea Reproduction Rate Decrease ENS 444112008-08-13T19:49:00013 August 2008 19:49:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Hydraulic Oil Spilled Into Lake Wylie Discharge Canal ENS 443942008-08-07T20:00:0007 August 2008 20:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to South Carolina Environmental Agency ENS 437032007-10-09T13:15:0009 October 2007 13:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Elevated Onsite Tritium Levels ENS 424392006-03-22T14:15:00022 March 2006 14:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release On-Site Fatality ENS 422512006-01-11T20:01:00011 January 2006 20:01:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Small Discharge of Unknown Oily Substance ENS 420422005-10-06T15:00:0006 October 2005 15:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Oil Spill to Navigable Waters ENS 417932005-06-24T12:45:00024 June 2005 12:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Fuel Oil Spill on Lake Wylie Near Plant Intake ENS 417512005-06-07T14:34:0007 June 2005 14:34:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Oil Spill at Plant Liquid Discharge ENS 417242005-05-23T19:12:00023 May 2005 19:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Small Fire in Owner Controlled Area Outside Owner Protected Area ENS 416882005-05-11T05:35:00011 May 2005 05:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Non-Work Related Fatality at Onsite Office Area ENS 416432005-04-27T13:38:00027 April 2005 13:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Onsite Fatality ENS 414712005-03-08T17:30:0008 March 2005 17:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to South Carolina Department of Health and Environmental Control ENS 413732005-02-04T12:30:0004 February 2005 12:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 412352004-12-01T18:30:0001 December 2004 18:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Lube Oil Spill Onsite ENS 411442004-10-24T00:23:00024 October 2004 00:23:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to South Carolina Osha ENS 409602004-08-16T14:28:00016 August 2004 14:28:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Transfer Employee Offsite Due to Electrical Shock 2020-05-14T20:30:00 | |
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