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    NRC Issues Event Notification for South Texas Nuclear Plant

    June 1, 2022 - Targeted News Service


      WASHINGTON, June 1 -- The Nuclear Regulatory Commission issued the following event notification (No. 55918) involving South Texas Nuclear Plant:


      The following information was provided by the licensee via email:

      "On 5/25/2022 at 1354 [CDT], during the replacement of two detectors, a halon actuation occurred which resulted in an unintentional release of approximately 384 pounds of halon gas into an enclosed room in the Unit 1 Electrical Auxiliary Building. There was no impact to plant operations or plant personnel. The room was verified by station Safety Personnel to be safe for normal access.

      "On 5/27/2022 at 2038 [CDT], Region 12 (Houston) of the Texas Commission of Environmental Quality (TCEQ) was notified of an event which met the requirements of "Emission Event" for the TCEQ of a halon release that exceeded the reportable quantity threshold of 100 pounds in a 24 hour period. The halon discharge was contained within the site protected area. Therefore, this event is not significant with respect to the health and safety of the public.

      "The licensee has notified the NRC Resident Inspector."

      Power Reactor

      Event Number: 55918

      Facility: South Texas

      Region: 4

      State: TX

      Unit: [1] [] []

      RX Type: [1] W-4-LP,[2] W-4-LP

      NRC Notified By: Dave Wurtz

      HQ OPS Officer: Brian P. Smith

      Notification Date: 05/27/2022

      Notification Time: 22:53 [ET]

      Event Date: 05/25/2022

      Event Time: 13:54 [CDT]

      Last Update Date: 05/27/2022

      Emergency Class: Non Emergency

      10 CFR Section:

      50.72(b)(2)(xi) - Offsite Notification

      Person (Organization):

      Pick, Greg (R4DO)

      Table omitted:


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