ENS 47305
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ENS Event | |
|---|---|
21:10 Sep 29, 2011 | |
| Title | Georgia Department Of Natural Resources Notified Due To Tritium Levels Above Background Detected At Sample Points Onsite |
| Event Description | On Sept. 28, 2011, results from routine monitoring of groundwater at Plant Hatch indicated tritium was detected above historical background levels at two sample points on site. Additional samples were taken from the same points and analysis confirmed that tritium was present at elevated levels in both samples and that tritium had not migrated out of the general area of initial discovery. Tritium concentrations up to 5.34 million picocuries per liter were observed. Immediate actions were taken to locate the source of the leak and actions are in progress to stop the leak. The tritium is confined to a small area on the plant site in the vicinity of the Unit 1 condensate storage tank, and there is no significant potential for off-site impact. Additionally, there is no impact to on-site personnel. No tritium levels above background have been detected or migrated outside the area where the two sample points are located.
Southern Nuclear will continue to sample strategic locations in the ground water monitoring network to determine if there are changes in the impacted area and beyond. SNC is confident that these levels are of low safety significance and do not pose any issues to the public health and safety. In accordance with Southern Nuclear's groundwater protection procedures and the Nuclear Energy Institute (NEI)/Industry Groundwater Protection Initiative, Southern Nuclear contacted the Nuclear Regulatory Commission (NRC) Region II Resident Inspector and the Georgia Department of Natural Resources to inform them of this matter. |
| Where | |
|---|---|
Hatch  Georgia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-3.5 h-0.146 days <br />-0.0208 weeks <br />-0.00479 months <br />) | |
| Opened: | Kenny Hunter 17:40 Sep 29, 2011 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Sep 29, 2011 |
| 47305 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (91 %) |
| After | Power Operation (91 %) |
WEEKMONTHYEARENS 512562015-07-23T17:05:00023 July 2015 17:05:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Sodium Hypochlorite Spill ENS 487512013-02-13T20:45:00013 February 2013 20:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Release Onsite ENS 486082012-12-20T00:35:00020 December 2012 00:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Groundwater Samples Indicate Elevated Tritium Levels ENS 485292012-11-21T15:36:00021 November 2012 15:36:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Chlorine Leak ENS 481592012-08-04T14:35:0004 August 2012 14:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Offsite Notification Due to Loss of Tone Alert Radio ENS 478112012-04-06T08:43:0006 April 2012 08:43:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert System ENS 473052011-09-29T21:10:00029 September 2011 21:10:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Georgia Department of Natural Resources Notified Due to Tritium Levels Above Background Detected at Sample Points Onsite ENS 450562009-05-12T11:16:00012 May 2009 11:16:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Elevated Tritium Levels in Ground Water Sample ENS 450552009-05-11T20:00:00011 May 2009 20:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to National Response Center ENS 421352005-10-27T22:00:00027 October 2005 22:00:00 10 CFR 20.2201(a)(1)(ii), 10 CFR 74.11(a), 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Material Accountability Discrepancy at Plant Hatch ENS 404282004-01-06T17:58:0006 January 2004 17:58:00 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 Fire on Refuel Floor 2015-07-23T17:05:00 | |
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