ENS 43720

v t e ENS Event
21:04 Oct 12, 2007
Title	Offsite Notification Made Due To Elevated Levels Of Tritium
Event Description	This notification is being made pursuant to 10 CFR 50.72(b)(2)(xi) due to the fact that Exelon Nuclear has informed the Illinois Emergency Management Agency and Illinois Environmental Protection Agency of recent groundwater monitoring results at Quad Cities Station. This notification was made at 16:04 hours CDST on October 12, 2007. As part of the Station's continuing environmental monitoring and sampling program, new wells were recently installed on Station property to better characterize the known, on-site tritium plume previously identified during Exelon's fleetwide tritium study conducted in 2006. Samples from some of the new wells have indicated elevated levels of tritium requiring notification of the State of Illinois. Based on well data to date, the tritium in the groundwater is confined to Exelon property and poses no threat to public health or safety. The Station continues to track this issue by monitoring the existing wells, installing new wells for further assessment, and pursuing underground pipe integrity testing. The NRC Resident Inspector was notified of this event by the licensee.

ENS 43720 +/-
Where
Quad Cities Illinois (NRC Region 3)
Reporting

10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
Time - Person (Reporting Time:+-3.03 h-0.126 days <br />-0.018 weeks <br />-0.00415 months <br />)
Opened:	Daryl Clark 18:02 Oct 12, 2007
NRC Officer:	John Mackinnon
Last Updated:	Oct 12, 2007
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v • d • e

v t e Emergency Notification System
Quad Cities with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
WEEKMONTHYEAR2023-07-03T20:30:00 [Table view]
[ENS list for Quad Cities]

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