ENS 44951
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ENS Event | |
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18:30 Apr 1, 2009 | |
Title | Offsite Notification to State/Local Agencies Regarding Tritium Release Onsite |
Event Description | On April 1, 2009, the results of an ongoing hydrology study being conducted by Harris Nuclear Plant as part of the voluntary Industry Groundwater Protection Initiative revealed that a pipe leak in the buried Cooling Tower Blowdown line was releasing water containing tritium into surrounding soil. The maximum tritium activity level discovered was 2,120 pCi/L, well below maximum levels allowed by regulation. While the leak rate has not been determined, it appears to be small. The Cooling Tower Blowdown line is used for liquid effluent dilution as part of permitted, routine releases. The permitted liquid effluent release point is the discharge from the Cooling Tower Blowdown line into Harris Lake. This line is leaking upstream of the permitted release point. All leaking water is contained within the site boundary, and based on studies performed by an independent hydrologist, offsite migration is not anticipated.
Immediate corrective actions include voluntary notifications, installation of additional monitoring wells at various locations to determine groundwater flow and to check for the presence of tritium. The water containing low levels of tritium is in a localized area immediately surrounding the Cooling Tower Blowdown line. The health and safety of the public are not affected by this event, as the activity levels discovered are significantly below maximum levels allowed by regulation. Harris Nuclear Plant is following the guidance contained in NEI 07-07 and has initiated this Event Notification as a result of our voluntary communication to State agencies in accordance with the Groundwater Protection Initiative. The licensee informed the State of North Carolina (Division of Radiation Protection and Department of Water Quality) and the NRC Resident Inspector. The licensee will also inform local agencies. |
Where | |
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Harris North Carolina (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-3.68 h-0.153 days <br />-0.0219 weeks <br />-0.00504 months <br />) | |
Opened: | David King 14:49 Apr 1, 2009 |
NRC Officer: | Steve Sandin |
Last Updated: | Apr 1, 2009 |
44951 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 572132024-07-08T11:48:0008 July 2024 11:48:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Siren Activation ENS 568642023-11-19T02:38:00019 November 2023 02:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Report to Another Government Agency ENS 535902018-09-07T04:00:0007 September 2018 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of Environmental Report to Another Government Agency ENS 508292015-02-17T20:55:00017 February 2015 20:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Wastewater Spill ENS 501772014-06-06T15:27:0006 June 2014 15:27:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Waste Water Spill ENS 501692014-06-03T20:50:0003 June 2014 20:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Spill of Treated Domestic Water ENS 493942013-09-28T01:15:00028 September 2013 01:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Tritiated Water Leak from Temporary Piping on Plant Site ENS 492802013-08-14T12:40:00014 August 2013 12:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to a Low Level Tritium Spill ENS 491142013-06-13T22:30:00013 June 2013 22:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Notification of North Carolina Emergency Management Due to Spill of Diesel Oil ENS 484162012-10-17T15:38:00017 October 2012 15:38:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Waste Water Pipe Leak Containing Tritium ENS 456252010-01-10T13:30:00010 January 2010 13:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Discovery of Tritium in Water Leakage Onsite ENS 449512009-04-01T18:30:0001 April 2009 18:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to State/Local Agencies Regarding Tritium Release Onsite ENS 437492007-10-26T15:49:00026 October 2007 15:49:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Press Release Issued Due to Train Derailment 2024-07-08T11:48:00 | |
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