Event Notification Report for September 09, 2021

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
09/08/2021 - 09/09/2021

EVENT NUMBERS
55445 55448 55450
Agreement State
Event Number: 55445
Rep Org: OK DEQ RAD MANAGEMENT
Licensee: Circuit Engineering #8
Region: 4
City: Alva   State: OK
County:
License #: OK-32127-01
Agreement: Y
Docket:
NRC Notified By: Kevin Sampson
HQ OPS Officer: Joanna Bridge
Notification Date: 09/02/2021
Notification Time: 15:30 [ET]
Event Date: 09/01/2021
Event Time: 17:30 [CDT]
Last Update Date: 09/02/2021
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
JOSEY, JEFFREY (R4)
NMSS_EVENTS_NOTIFICATION, (EMAIL)
Event Text
EN Revision Imported Date: 9/9/2021

EN Revision Text: AGREEMENT STATE REPORT - DAMAGED GAUGE

The following was received from the state of Oklahoma via e-mail:

"On Sept. 1, 2021 at approximately 1730 CST, [the State] was informed of an incident involving a nuclear gauge which fell from a truck and bent the source rod to the extent that it could not be operated. The source rod was in the shielded position at the time. [It is] believed this occurred sometime the previous day. We will provide more information as it becomes available."


Power Reactor
Event Number: 55448
Facility: Hatch
Region: 2     State: GA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Ryan Fannin
HQ OPS Officer: Brian Lin
Notification Date: 09/08/2021
Notification Time: 08:40 [ET]
Event Date: 09/08/2021
Event Time: 01:59 [EDT]
Last Update Date: 09/08/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
MILLER, MARK (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
EN Revision Imported Date: 9/9/2021

EN Revision Text: UNIT 1 HIGH PRESSURE COOLANT INJECTION (HPCI) SYSTEM INOPERABLE

At 0159 EDT on 09/08/2021, the HPCI pump discharge valve failed to reopen during a valve surveillance, resulting in the HPCI system being declared INOPERABLE. HPCI does not have a redundant system; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). Reactor Core Isolation Cooling system and low pressure Emergency Core Cooling Systems were OPERABLE during this time.

There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.


Power Reactor
Event Number: 55450
Facility: Summer
Region: 2     State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP,[2] W-AP1000,[3] W-AP1000
NRC Notified By: Tracey Stewart
HQ OPS Officer: Donald Norwood
Notification Date: 09/08/2021
Notification Time: 17:12 [ET]
Event Date: 09/08/2021
Event Time: 13:37 [EDT]
Last Update Date: 09/08/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
MILLER, MARK (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
EN Revision Imported Date: 9/9/2021

EN Revision Text: NOTIFICATION OF ENVIRONMENTAL REPORT TO ANOTHER GOVERNMENT AGENCY

"At 1337 [EDT] on 9/8/2021, V.C. Summer reported the overflow of the Nuclear Operations Building Lift Station (LS-3) to the South Carolina Department of Health and Environmental Control. The lift station overflow was due to a broken discharge pipe from Pump 1 to the common discharge header. The overflow was contained in the valve vault, basin gravel, and the nearby concrete surface. None of the overflow reached any storm drains or waters of the state. This release did not exceed any NRC regulations or reporting criteria. This notification is being made solely as a four-hour, non-emergency notification for a Notification of Other Government Agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).

"There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."

Page Last Reviewed/Updated Thursday, September 09, 2021