Event Notification Report for September 09, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/06/2024 - 09/09/2024
EVENT NUMBERS56800 57243 57305
Fuel Cycle Facility
Event Number: 56800
Facility: BWX Technologies Inc.
RX Type: Uranium Fuel Fabrication
Comments:
Heu Fabrication & Scrap
Region: 2
City: Lynchburg State: VA
County: Campbell
License #: SNM-42
Docket: 070-27
NRC Notified By: Daniel L Ashworth
HQ OPS Officer: Lawrence Criscione
Notification Date: 10/17/2023
Notification Time: 09:51 [ET]
Event Date: 10/16/2023
Event Time: 10:15 [EDT]
Last Update Date: 09/09/2024
Emergency Class: Non Emergency
10 CFR Section:
70.50(b)(2) - Safety Equipment Failure
Person (Organization):
Miller, Mark (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Fuels Group, - (EMAIL)
Event Text
EN Revision Imported Date: 9/9/2024
EN Revision Text: SAFETY EQUIPMENT FAILURE
The following information was provided by the licensee via email:
"While performing a criticality process analysis, assumptions utilized in modeling the placement of criticality detectors, within the BWXT Nuclear Operations Group Inc. - Lynchburg, VA (BWXT NOG-L) facility, were questioned. Upon further examination of the base assumptions, it was identified that a limited number of process areas in the facility do not have adequate criticality detection capability, meeting the requirements of 10 CFR 70.24(a)(1).
"Compensatory measures are being systematically implemented; operations within the identified areas have been shut down and processing of special nuclear material in these areas has been halted until compensatory measures can be implemented. The likelihood of a criticality occurring at BWXT NOG-L remains highly unlikely, the performance requirements of 10 CFR 70.61 are still being met, and no Items Relied On For Safety (IROFS) have been affected - all IROFS credited in the prevention of a criticality accident are available and reliable.
"The Senior Resident Inspector has been notified."
* * * UPDATE - THIS EVENT IS BEING PUBLICALLY RELEASED AS OF 9/9/2024 BY HOWIE CROUCH AT 1542 EST * * *
Part 21
Event Number: 57243
Rep Org: RSSC dba Marmon
Licensee:
Region: 1
City: East Granby State: CT
County:
License #:
Agreement: N
Docket:
NRC Notified By: Phillip Sargenski
HQ OPS Officer: Adam Koziol
Notification Date: 07/25/2024
Notification Time: 11:05 [ET]
Event Date: 07/23/2024
Event Time: 00:00 [EDT]
Last Update Date: 09/06/2024
Emergency Class: Non Emergency
10 CFR Section:
21.21(d)(3)(i) - Defects And Noncompliance
Person (Organization):
Lilliendahl, Jon (R1DO)
Feliz-Adorno, Nestor (R3DO)
Azua, Ray (R4DO)
Part 21/50.55 Reactors, - (EMAIL)
Event Text
EN Revision Imported Date: 9/9/2024
EN Revision Text: PART 21 REPORT - NON-COMPLAINT INSULATED CONDUCTOR
The following is a synopsis of information received via fax:
A reel of insulated conductor was found non-compliant due to failure of insulation tensile and elongation at break test following air oven aging. Wire from the non-compliant reel was delivered to nine plants.
Affected plants: Wolf Creek, Dresden, LaSalle, Limerick, Peach Bottom, Arkansas Nuclear One, Waterford, Susquehanna, and Davis Besse.
Reporting company point of contact:
RSSC Wire and Cable LLC
dba Marmon Industrial Energy and Infrastructure
20 Bradley Park Road
East Granby, CT 06026
Phillip Sargenski - Quality Assurance Manager
Phone: 860-653-8376
Fax: 860-653-8301
Phillip.sargenski@marmoniei.com
* * * UPDATE ON 08/23/24 AT 1315 EDT FROM PHILLIP SARGENSKI TO JOSUE RAMIREZ * * *
The vendor provided the final report for this event listing corrective actions and the estimated completion dates.
Notified R1DO (Lilliendahl), R3DO (Skokowski), R4DO (Vossmar), and Part 21 group (Email).
* * * UPDATE ON 09/04/24 AT 1044 EDT FROM PHILLIP SARGENSKI TO NESTOR MAKRIS * * *
The vendor notified the NRC that they plan to send additional finding data regarding this notification via fax and/or email within the next day or two.
Notified R1DO (Ferdas), R3DO (Hills), R4DO (Drake), and Part 21 group (Email).
* * * UPDATE ON 09/06/24 AT 1327 EDT FROM PHILLIP SARGENSKI TO ADAM KOZIOL * * *
The vendor identified an additional non-compliant shipment of insulated conductor.
Affected plant: Calvert Cliffs
Notified R1DO (Ferdas), R3DO (Hills), R4DO (Drake), and Part 21 group (Email).
Independent Spent Fuel Storage Installation
Event Number: 57305
Rep Org: San Onofre
Licensee: Southern California Edison Company
Region: 4
City: San Clemente State: CA
County: San Diego
License #: GL
Agreement: Y
Docket: 72-41
NRC Notified By: Guadalupe Robles
HQ OPS Officer: Robert A. Thompson
Notification Date: 09/05/2024
Notification Time: 11:06 [ET]
Event Date: 09/05/2024
Event Time: 08:00 [PDT]
Last Update Date: 09/05/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
Drake, James (R4DO)
Event Text
EN Revision Imported Date: 9/9/2024
EN Revision Text: OFFSITE AGENCY NOTIFICATION OF LOW-LEVELS OF TRITIUM DETECTED IN GROUNDWATER
The following information was provided by the licensee via phone and email:
"On September 5, 2024, Southern California Edison reported, as a proactive measure, detectable levels of tritium in onsite groundwater wells to offsite government agencies. The tritium levels do not exceed reporting thresholds in the [Nuclear Energy Institute's] NEI 07-07 communication protocol, the offsite dose calculation manual, nor the NRC regulations in 10 CFR Part 20. Offsite ocean water samples have not identified the presence of tritium above detectable levels. An investigation is currently ongoing to determine the source of tritium and determine mitigative actions, if any.
"This notification is being made solely as a four-hour, non-emergency notification for a notification of another 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 regional inspector will be notified.