ENS 50907

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v t e ENS Event
20:00 Mar 19, 2015
Title	Offsite Notification of Tritium in Ground Water
Event Description	On February 26, 2015, as a result of routine monitoring well sampling, Palisades Nuclear Plant identified tritium in temporary wells 7 and 8, located within the plant protected area. Tritium concentrations were less than the threshold value (20,000 pCi/L) for initiating voluntary communications in accordance with Nuclear Energy Institute Ground Water Protection Initiative. The station promptly isolated and rerouted the likely source. Subsequent sample concentrations from samples obtained on March 18, 2015, have resulted in concentrations of tritium less than the minimum detectable activity. The wells are currently used only for on-site sampling and not for drinking water. There is no threat to public health and safety. These results confirm that a leak from the pipe that runs from the turbine sump oil separator to the turbine building drain tank was the likely cause. The volume of the leak cannot be determined but is potentially greater than 100 gallons. Therefore, voluntary communications have been made to state and local stakeholders. The Licensee has notified the Michigan Department of Environmental Quality, Van Buren County Administrator, the Township Supervisors in Covert, Geneva, and South Haven Townships, as well as the City of South Haven Mayor and City Manager. The licensee has notified the NRC Resident Inspectors. The tritium is suspected to be migrating through the steam generator tubes to the turbine building waste water.

ENS 50907 +/-
Where
Palisades Michigan (NRC Region 3)
Reporting

10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
Time - Person (Reporting Time:+-3.27 h-0.136 days <br />-0.0195 weeks <br />-0.00448 months <br />)
Opened:	Barb Dotson 16:44 Mar 19, 2015
NRC Officer:	Mark Abramovitz
Last Updated:	Mar 19, 2015
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v • d • e

v t e Emergency Notification System
Palisades with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
WEEKMONTHYEAR2015-07-13T12:38:00 [Table view]
[ENS list for Palisades]

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