Event Notification Report for March 27, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/26/2024 - 03/27/2024
Power Reactor
Event Number: 57058
Facility: Quad Cities
Region: 3 State: IL
Unit: [2] [] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: Tom Boyle
HQ OPS Officer: Thomas Herrity
Region: 3 State: IL
Unit: [2] [] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: Tom Boyle
HQ OPS Officer: Thomas Herrity
Notification Date: 03/28/2024
Notification Time: 01:52 [ET]
Event Date: 03/27/2024
Event Time: 20:46 [CDT]
Last Update Date: 03/28/2024
Notification Time: 01:52 [ET]
Event Date: 03/27/2024
Event Time: 20:46 [CDT]
Last Update Date: 03/28/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Edwards, Rhex (R3DO)
Edwards, Rhex (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Power Operation | 0 | Power Operation |
AUTOMATIC ACTUATION OF REACTOR PROTECTION SYSTEM
The following information was provided by the licensee via email:
"At 2046 [CDT] on 3/27/24 with the unit 2 in Mode 5 at 0% power, an actuation of the Reactor Protection System occurred during testing of the scram discharge volume. The cause of the Reactor Protection System actuation was leakage of water into the scram discharge volume causing a high level condition while drains were isolated for testing. The Reactor Protection System automatically actuated as designed when the high scram discharge volume signal was received. All rods were previously fully inserted and the Control Rod Drive system was shutdown. No rod movement occurred due to the actuation.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the Reactor Protection System.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
The following information was provided by the licensee via email:
"At 2046 [CDT] on 3/27/24 with the unit 2 in Mode 5 at 0% power, an actuation of the Reactor Protection System occurred during testing of the scram discharge volume. The cause of the Reactor Protection System actuation was leakage of water into the scram discharge volume causing a high level condition while drains were isolated for testing. The Reactor Protection System automatically actuated as designed when the high scram discharge volume signal was received. All rods were previously fully inserted and the Control Rod Drive system was shutdown. No rod movement occurred due to the actuation.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the Reactor Protection System.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
Non-Agreement State
Event Number: 57059
Rep Org: Dow Chemical
Licensee: Dow Chemical
Region: 3
City: Midland State: MI
County:
License #: 21-00265-06
Agreement: N
Docket:
NRC Notified By: Kelly Wegener-Gave
HQ OPS Officer: Adam Koziol
Licensee: Dow Chemical
Region: 3
City: Midland State: MI
County:
License #: 21-00265-06
Agreement: N
Docket:
NRC Notified By: Kelly Wegener-Gave
HQ OPS Officer: Adam Koziol
Notification Date: 03/28/2024
Notification Time: 12:55 [ET]
Event Date: 03/27/2024
Event Time: 11:01 [EDT]
Last Update Date: 04/26/2024
Notification Time: 12:55 [ET]
Event Date: 03/27/2024
Event Time: 11:01 [EDT]
Last Update Date: 04/26/2024
Emergency Class: Non Emergency
10 CFR Section:
30.50(b)(1) - Unplanned Contamination
10 CFR Section:
30.50(b)(1) - Unplanned Contamination
Person (Organization):
Edwards, Rhex (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Edwards, Rhex (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
EN Revision Imported Date: 4/29/2024
EN Revision Text: UNPLANNED CONTAMINATION
The following information was provided by the licensee via telephone:
On March 27, 2024, at 1101 EDT, a sample containing 20.3 mCi of carbon-14 (C-14) in 1,3-Dichloropropene liquid form (348 microliters) was dropped when being removed from a storage container. The authorized user immediately called for assistance and restricted access to the laboratory where the spill occurred. Decontamination efforts began immediately after the incident, and it was confirmed that the contamination was contained to the laboratory where the spill occurred. It was determined on March 28, 2024, at 1025 EDT that restrictions would remain in place greater than 24 hours, and that this incident was reportable under 10 CFR 30.50(b)(1).
Following the spill, a nasal swab was taken of the worker with no detectable activity, however, a urine bioassay taken the following day indicated a potential internal dose of 213 mrem. No other staff were exposed, and there was no risk to public safety or the environment.
The applicable 10 CFR 20 Appendix B annual limit for intake for C-14 is 2000 microcuries.
Decontamination efforts will continue until detectable surface contamination is less than 1000 dpm/100 square centimeters.
* * * UPDATE ON 4/26/24 AT 1609 EDT FROM KELLY WEGENER-GAVE TO ADAM KOZIOL * * *
The licensee submitted a 30-day written report for this event.
Notified R3DO (Betancourt-Roldan) and NMSS Events (email).
EN Revision Text: UNPLANNED CONTAMINATION
The following information was provided by the licensee via telephone:
On March 27, 2024, at 1101 EDT, a sample containing 20.3 mCi of carbon-14 (C-14) in 1,3-Dichloropropene liquid form (348 microliters) was dropped when being removed from a storage container. The authorized user immediately called for assistance and restricted access to the laboratory where the spill occurred. Decontamination efforts began immediately after the incident, and it was confirmed that the contamination was contained to the laboratory where the spill occurred. It was determined on March 28, 2024, at 1025 EDT that restrictions would remain in place greater than 24 hours, and that this incident was reportable under 10 CFR 30.50(b)(1).
Following the spill, a nasal swab was taken of the worker with no detectable activity, however, a urine bioassay taken the following day indicated a potential internal dose of 213 mrem. No other staff were exposed, and there was no risk to public safety or the environment.
The applicable 10 CFR 20 Appendix B annual limit for intake for C-14 is 2000 microcuries.
Decontamination efforts will continue until detectable surface contamination is less than 1000 dpm/100 square centimeters.
* * * UPDATE ON 4/26/24 AT 1609 EDT FROM KELLY WEGENER-GAVE TO ADAM KOZIOL * * *
The licensee submitted a 30-day written report for this event.
Notified R3DO (Betancourt-Roldan) and NMSS Events (email).