Event Notification Report for August 27, 2026
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Event Text
Event Text
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/26/2026 - 08/27/2026
Agreement State
Event Number: 58413
Rep Org: Texas Dept of State Health Services
Licensee: Ascend Performance Materials Texas
Region: 4
City: Alvin State: TX
County:
License #: L 06630
Agreement: Y
Docket:
NRC Notified By: Sindiso Ncube
HQ OPS Officer: Sebastien Bruneau
Licensee: Ascend Performance Materials Texas
Region: 4
City: Alvin State: TX
County:
License #: L 06630
Agreement: Y
Docket:
NRC Notified By: Sindiso Ncube
HQ OPS Officer: Sebastien Bruneau
Notification Date: 08/19/2026
Notification Time: 18:47 [ET]
Event Date: 08/18/2026
Event Time: 00:00 [CDT]
Last Update Date: 08/19/2026
Notification Time: 18:47 [ET]
Event Date: 08/18/2026
Event Time: 00:00 [CDT]
Last Update Date: 08/19/2026
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
NMSS_EVENTS_NOTIFICATION (EMAIL)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK SHUTTERS
The following information was provided by the Texas Department of State Health Services (the Agency) via email:
"On August 19, 2026, the Agency was notified by the licensee that the source shutter mechanisms on three gauges had failed to function as designed. The affected gauges were a Texas Nuclear gauge, model 5201, containing a 100 mCi Cs-137 source; a Kay Ray gauge, model 7093, containing a 300 mCi Cs-137 source; and an Ohmart gauge, model SHGL, containing a 1 mCi Cs-137 source. The licensee reported that all three gauges were discovered with the source shutters stuck in the open position. Open is the normal operating position. This discovery was made during the licensee's 6-month inventory, visual inspection, and shutter check on August 18, 2026. The licensee stated that there is no risk of additional radiation exposure to members of the public or radiation workers.
"Additional information will be provided in accordance with SA 300 reporting requirements"
Texas incident number: 10320
Texas NMED number: TX260034
The following information was provided by the Texas Department of State Health Services (the Agency) via email:
"On August 19, 2026, the Agency was notified by the licensee that the source shutter mechanisms on three gauges had failed to function as designed. The affected gauges were a Texas Nuclear gauge, model 5201, containing a 100 mCi Cs-137 source; a Kay Ray gauge, model 7093, containing a 300 mCi Cs-137 source; and an Ohmart gauge, model SHGL, containing a 1 mCi Cs-137 source. The licensee reported that all three gauges were discovered with the source shutters stuck in the open position. Open is the normal operating position. This discovery was made during the licensee's 6-month inventory, visual inspection, and shutter check on August 18, 2026. The licensee stated that there is no risk of additional radiation exposure to members of the public or radiation workers.
"Additional information will be provided in accordance with SA 300 reporting requirements"
Texas incident number: 10320
Texas NMED number: TX260034
Agreement State
Event Number: 58414
Rep Org: PA Bureau of Radiation Protection
Licensee: United States Steel Corporation
Region: 1
City: Dravosburg State: PA
County:
License #: PA-G0309
Agreement: Y
Docket:
NRC Notified By: John S. Chippo
HQ OPS Officer: Christopher Prescott
Licensee: United States Steel Corporation
Region: 1
City: Dravosburg State: PA
County:
License #: PA-G0309
Agreement: Y
Docket:
NRC Notified By: John S. Chippo
HQ OPS Officer: Christopher Prescott
Notification Date: 08/20/2026
Notification Time: 07:19 [ET]
Event Date: 08/19/2026
Event Time: 00:00 [EDT]
Last Update Date: 08/20/2026
Notification Time: 07:19 [ET]
Event Date: 08/19/2026
Event Time: 00:00 [EDT]
Last Update Date: 08/20/2026
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
NMSS_EVENTS_NOTIFICATION (EMAIL)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK SHUTTER
The following information was provided by the Pennsylvania Bureau of Radiation Protection (the Department) via email:
"On August 19, 2026, Global Gauge Corporation personnel arrived at the licensee's facility to perform a calibration of the licensee's gauge. During the calibration process, Global Gauge Corporation discovered that the shutter was malfunctioning. This same gauge [Model SH-6000, serial number 70705, containing 2 Ci of Am-241] recently experienced a shutter malfunction that was reported as PA Event Report ID number PA260012 [EN 58371 on July 22, 2026]. The gauge was removed from service, the shutter was verified closed, and the gauge was secured in temporary storage. Global Gauge Corporation plans to transport the gauge back to their facility to repair or rebuild the gauge.
"The Department will perform a reactive inspection. More information will be provided as received."
PA event number: PA260016
The following information was provided by the Pennsylvania Bureau of Radiation Protection (the Department) via email:
"On August 19, 2026, Global Gauge Corporation personnel arrived at the licensee's facility to perform a calibration of the licensee's gauge. During the calibration process, Global Gauge Corporation discovered that the shutter was malfunctioning. This same gauge [Model SH-6000, serial number 70705, containing 2 Ci of Am-241] recently experienced a shutter malfunction that was reported as PA Event Report ID number PA260012 [EN 58371 on July 22, 2026]. The gauge was removed from service, the shutter was verified closed, and the gauge was secured in temporary storage. Global Gauge Corporation plans to transport the gauge back to their facility to repair or rebuild the gauge.
"The Department will perform a reactive inspection. More information will be provided as received."
PA event number: PA260016
Page Last Reviewed/Updated August 27, 2026, 05:04 am EDT