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 Entered dateEvent description
ENS 546934 May 2020 23:40:00

This report is being made pursuant to 10 CFR 50.72(b)(3)(v)(D), Event or Condition that could have prevented fulfillment of a Safety Function needed to mitigate the Consequences of an Accident. A through wall leak was found on piping connected to the Division 3 Diesel Generator (DG) Cooling Water Strainer. This condition has been evaluated and the Division 3 DG Cooling Water System has been declared inoperable. The Division 3 DG Cooling Water System is a support system for the Division 3 Emergency DG and the High Pressure Core Spray System (HPCS). The NRC Resident Inspector has been notified.

  • * * RETRACTION ON MAY 8, 2020 AT 1709 EDT FROM JOE MESSINA TO BRIAN LIN * * *

This update retracts Event Notification #54693, which reported a condition that could have potentially prevented fulfillment of a safety function needed to mitigate the consequences of an accident. An evaluation of the flaw on the piping connected to the Unit 2 Division 3 Diesel Generator (DG) Cooling Water strainer concluded that the system would have remained operable. The High Pressure Core Spray system, supported by the operable DG Cooling Water system, remained operable and capable of performing its safety function. The NRC Resident Inspector has been notified. Notified R3DO (Stone).

ENS 5438412 November 2019 18:23:00This report is being made pursuant to 10CFR50.72(b)(2)(xi), "News Release or Notification of Other Government Agency". The Main Control Room received a report from on-site Maintenance personnel performing diving activities at the lake screen house that communications with a diver had been lost. Onsite and offsite emergency responders were dispatched. The diver was removed from the water but was unresponsive. At 1601 (CST), the LaSalle County Station Operating Department was notified by emergency responders on-site that the individual was deceased. The Grundy County Sheriff, LaSalle County Sheriff, Seneca Emergency Services, and NRC Senior Resident Inspector have been notified. A press release is planned