ENS 57874

v t e ENS Event
18:30 Aug 18, 2025
Title	Concurrent Report for Offsite Notification
Event Description	The following is a summary of the information provided by the licensee via phone and email: Centrus American Centrifuge Operating (ACO) received notification from a Fluor-BWXT Portsmouth (FBP) environmental technician supervisor that the chlorine level at outfall '013/X-2230N' was at 0.159 mg/L. This exceeds the National Pollutant Discharge Elimination System (NPDES) permit limit on total chlorine at outfall '013' of 0.05 mg/L. Centrus ACO notified the Ohio Environmental Protection Agency at 1539 EDT. Centrus ACO asked FBP to resample on the morning of 8/19/2025 to further confirm the exceedance. Centrus ACO is currently investigating to determine the cause of the exceedance. This report is in accordance with condition notification #12803. The NRC regional office was notified.

ENS 57874 +/-
Where
American Centrifuge Plant Piketon, Ohio (NRC Region 2)
License number:	SNM-2011
Reporting

Part 70 App A (C)
Time - Person (Reporting Time:+-1 h-0.0417 days <br />-0.00595 weeks <br />-0.00137 months <br />)
Opened:	Gregory Bocook 17:30 Aug 18, 2025
NRC Officer:	Tenisha Meadows
Last Updated:	Aug 18, 2025
57874 - NRC Website
v • d • e

v t e Emergency Notification System
American Centrifuge Plant with Part 70 App A (C)
WEEKMONTHYEAR2025-08-27T18:50:00 [Table view]
[ENS list for American Centrifuge Plant]

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