Event Notification Report for September 08, 2021
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/07/2021 - 09/08/2021
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
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
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: 09/28/2021
Notification Time: 17:12 [ET]
Event Date: 09/08/2021
Event Time: 13:37 [EDT]
Last Update Date: 09/28/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
MILLER, MARK (R2)
MILLER, MARK (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EN Revision Imported Date: 10/28/2021
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."
* * * RETRACTION ON 09/28/2021 AT 1405 EDT FROM JUSTIN BOUKNIGHT TO KERBY SCALES * * *
"At 1712 EDT on 9/8/2021, V.C. Summer made Event Notification 55450 notifying the NRC of an environmental report to another government agency, in accordance with 10 CFR 50.72(b)(2)(xi). In the course of station response, it was determined that the lift station overflow did not exceed any federal, state or local reporting criteria or violate any permits. Following this investigation, the report to the South Carolina Department of Health and Environmental Control is considered a courtesy notification and the event does not meet reporting criteria under 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."
Notified R2DO (Miller)
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."
* * * RETRACTION ON 09/28/2021 AT 1405 EDT FROM JUSTIN BOUKNIGHT TO KERBY SCALES * * *
"At 1712 EDT on 9/8/2021, V.C. Summer made Event Notification 55450 notifying the NRC of an environmental report to another government agency, in accordance with 10 CFR 50.72(b)(2)(xi). In the course of station response, it was determined that the lift station overflow did not exceed any federal, state or local reporting criteria or violate any permits. Following this investigation, the report to the South Carolina Department of Health and Environmental Control is considered a courtesy notification and the event does not meet reporting criteria under 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."
Notified R2DO (Miller)
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
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
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
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
MILLER, MARK (R2)
MILLER, MARK (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EN Revision Imported Date: 10/8/2021
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.
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.