ENS 48342
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ENS Event | |
|---|---|
19:30 Sep 25, 2012 | |
| Title | Offsite Notification Due to Tritium in Overflow |
| Event Description | At 1215 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.623075e-4 months <br /> on September 24, 2012, Surry Power Station personnel confirmed the presence of tritium at a level of 1,450 picoCuries/Liter (pCi/L) in a Unit 2 Turbine Building heating steam drain receiver (HSDR) tank. This tank collects condensate from steam which is used to heat buildings. A sample of the condensate was analyzed following failure of the pump (used to control level) which resulted in the tank overflowing to a drain line on September 17 and 23. The sample was taken because the drain line was degraded and the overflow resulted in a release to the environment.
The normal inputs into this drain line had been isolated from use in August when the degraded pipe was discovered. Currently, the tank contents are being diverted to a sump until repairs to the drain line and pump are complete. These are expected to complete in the next couple of weeks. Both releases were estimated to be greater than 100 gallons. The location of the leak was within the Protected Area of Surry Power Station. There has been no tritium detected in any monitoring wells in the vicinity of the degraded drain line, nor in any monitoring wells outside the Protected Area. Because the leak remained onsite, no offsite impact to ground water is expected. Furthermore, the leak posed no threat to employees or the public. Because there was a detectable amount of licensed material in the water, Surry implemented communication to offsite agencies as part of [licensee] commitment to the Nuclear Energy Institute (NEI) Ground Water Protection Initiative. This notification is being transmitted due to Notification of Other Government Agencies under 10CFR50.72(b)(2)(xi). The Virginia Department of Environmental Quality, Virginia Department of Health, Virginia Department of Emergency Management, NRC Senior Resident Inspector and Surry County Administrator were notified. |
| Where | |
|---|---|
Surry  Virginia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-1.38 h-0.0575 days <br />-0.00821 weeks <br />-0.00189 months <br />) | |
| Opened: | Thomas D. Oliver 18:07 Sep 25, 2012 |
| NRC Officer: | Dong Park |
| Last Updated: | Sep 25, 2012 |
| 48342 - NRC Website
Loading map... | |
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 (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 580102025-10-27T18:51:00027 October 2025 18:51:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Personnel Injury ENS 579682025-10-06T10:27:0006 October 2025 10:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Onsite Fatality ENS 571052024-05-02T19:05:0002 May 2024 19:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 552992021-06-09T15:15:0009 June 2021 15:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Loss of Capability to Activate Emergency Sirens and Offsite Notification of Same ENS 550352020-12-13T03:14:00013 December 2020 03:14:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium Leakage to the Ground ENS 537412018-11-16T05:00:00016 November 2018 05:00:00 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 Transport of Potentially Contaminated Worker and Subsequent Fatality ENS 536902018-10-23T04:00:00023 October 2018 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Osha Due to Supplemental Employee Fatality ENS 531072017-12-07T18:01:0007 December 2017 18:01:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Groundwater Results to State and Local Agencies ENS 526392017-03-25T00:00:00025 March 2017 00:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Virginia Deq Notified of Small Glycol Release to James River ENS 504182014-08-29T18:57:00029 August 2014 18:57:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to State of Virginia Required by Site Discharge Permit ENS 488602013-03-28T02:45:00028 March 2013 02:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release One Emergency Warning Siren Energized for a Short Time ENS 483422012-09-25T19:30:00025 September 2012 19:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium in Overflow ENS 481942012-08-15T19:30:00015 August 2012 19:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Tritium in Degraded Drain Line ENS 478662012-04-26T13:55:00026 April 2012 13:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Death of a Bald Eagle ENS 470722011-07-19T15:13:00019 July 2011 15:13:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of Emergency Sirens During Exercise ENS 468662011-05-20T16:00:00020 May 2011 16:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Media Concern About Boat Near the Site ENS 467612011-04-16T22:55:00016 April 2011 22:55:00 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 Unusual Event Declared Due to Loss of All Offsite Power from Tornado Damage ENS 458712010-04-25T22:05:00025 April 2010 22:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release One Alarm Siren Initiated Spuriously ENS 455132009-11-21T05:00:00021 November 2009 05:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Rescue Squad for Offsite Injury of Hunters ENS 454932009-11-13T00:00:00013 November 2009 00:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification to Us Coast Guard and Commonwealth of Virginia of Hazard to Navigation ENS 453272009-09-03T19:25:0003 September 2009 19:25:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to Virginia Deq ENS 448912009-03-04T19:40:0004 March 2009 19:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Relief Valve Failure Results in Tritium and Cesium Spill ENS 428942006-10-09T15:24:0009 October 2006 15:24:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Potential Violation of Virginia Pollutant Discharge Elimination System Permit ENS 412652004-12-15T15:06:00015 December 2004 15:06:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Military Flare Found in Water ENS 403022003-11-07T13:30:0007 November 2003 13:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Release of Chemicals Into State Waters ENS 437401976-10-22T18:00:00022 October 1976 18:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Small Leak - Tritium 2025-10-06T10:27:00 | |
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