NRC Event Notification Reports
@whoopsie.tds.xyz
I share the Event Notifications published daily by the US Nuclear Regulatory Commission.
MEDICAL EVENT
Santa Monica, CA, 11/12/2025
"The University of California Los Angeles (UCLA) health [center] reported that a patient being treated for liver cancer underwent a Y-90 Sirtex SirSpheres brachytherapy treatment on November 12, 2025. This is a preliminary report of a medical event, per 10…
Santa Monica, CA, 11/12/2025
"The University of California Los Angeles (UCLA) health [center] reported that a patient being treated for liver cancer underwent a Y-90 Sirtex SirSpheres brachytherapy treatment on November 12, 2025. This is a preliminary report of a medical event, per 10…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 21, 2025 at 2:41 PM
MEDICAL EVENT
Santa Monica, CA, 11/12/2025
"The University of California Los Angeles (UCLA) health [center] reported that a patient being treated for liver cancer underwent a Y-90 Sirtex SirSpheres brachytherapy treatment on November 12, 2025. This is a preliminary report of a medical event, per 10…
Santa Monica, CA, 11/12/2025
"The University of California Los Angeles (UCLA) health [center] reported that a patient being treated for liver cancer underwent a Y-90 Sirtex SirSpheres brachytherapy treatment on November 12, 2025. This is a preliminary report of a medical event, per 10…
GAUGE SHUTTER FAILURE
Centertown, KY, 11/12/2025
"The Department was notified on 11/12/2025, by the radiation safety officer (RSO) from Big Rivers Electric Corporation, that during a routine six-month inventory/shutter checks, two sources were identified to have problems with the shutters closing.
…
Centertown, KY, 11/12/2025
"The Department was notified on 11/12/2025, by the radiation safety officer (RSO) from Big Rivers Electric Corporation, that during a routine six-month inventory/shutter checks, two sources were identified to have problems with the shutters closing.
…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 21, 2025 at 2:11 PM
GAUGE SHUTTER FAILURE
Centertown, KY, 11/12/2025
"The Department was notified on 11/12/2025, by the radiation safety officer (RSO) from Big Rivers Electric Corporation, that during a routine six-month inventory/shutter checks, two sources were identified to have problems with the shutters closing.
…
Centertown, KY, 11/12/2025
"The Department was notified on 11/12/2025, by the radiation safety officer (RSO) from Big Rivers Electric Corporation, that during a routine six-month inventory/shutter checks, two sources were identified to have problems with the shutters closing.
…
LOSS OF REACTOR ENCLOSURE RECIRCULATION
Limerick (PA), 11/19/2025
On November 18, 2025, at 0328 CST, as the licensee was initiating the standby gas treatment system in support of planned maintenance on normal reactor building ventilation, the '2A' reactor enclosure recirculation system (RERS) fan f…
Limerick (PA), 11/19/2025
On November 18, 2025, at 0328 CST, as the licensee was initiating the standby gas treatment system in support of planned maintenance on normal reactor building ventilation, the '2A' reactor enclosure recirculation system (RERS) fan f…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 20, 2025 at 2:11 PM
LOSS OF REACTOR ENCLOSURE RECIRCULATION
Limerick (PA), 11/19/2025
On November 18, 2025, at 0328 CST, as the licensee was initiating the standby gas treatment system in support of planned maintenance on normal reactor building ventilation, the '2A' reactor enclosure recirculation system (RERS) fan f…
Limerick (PA), 11/19/2025
On November 18, 2025, at 0328 CST, as the licensee was initiating the standby gas treatment system in support of planned maintenance on normal reactor building ventilation, the '2A' reactor enclosure recirculation system (RERS) fan f…
FITNESS FOR DUTY VIOLATION
Palisades (MI), 11/18/2025
"On November 18, 2025, [non-licensed] supervisor violated the station's fitness for duty (FFD) policy. The employee's unescorted access to Palisades Nuclear Plant has been terminated. The event was determined to be reportable under 10CFR26.719(b…
Palisades (MI), 11/18/2025
"On November 18, 2025, [non-licensed] supervisor violated the station's fitness for duty (FFD) policy. The employee's unescorted access to Palisades Nuclear Plant has been terminated. The event was determined to be reportable under 10CFR26.719(b…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 19, 2025 at 2:41 PM
FITNESS FOR DUTY VIOLATION
Palisades (MI), 11/18/2025
"On November 18, 2025, [non-licensed] supervisor violated the station's fitness for duty (FFD) policy. The employee's unescorted access to Palisades Nuclear Plant has been terminated. The event was determined to be reportable under 10CFR26.719(b…
Palisades (MI), 11/18/2025
"On November 18, 2025, [non-licensed] supervisor violated the station's fitness for duty (FFD) policy. The employee's unescorted access to Palisades Nuclear Plant has been terminated. The event was determined to be reportable under 10CFR26.719(b…
HPCI INOPERABLE
Dresden (IL), 11/17/2025
"At 1613 CST on November 17, 2025, it was discovered that the single train of high pressure coolant injection (HPCI) was inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; ther…
Dresden (IL), 11/17/2025
"At 1613 CST on November 17, 2025, it was discovered that the single train of high pressure coolant injection (HPCI) was inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; ther…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 19, 2025 at 2:11 PM
HPCI INOPERABLE
Dresden (IL), 11/17/2025
"At 1613 CST on November 17, 2025, it was discovered that the single train of high pressure coolant injection (HPCI) was inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; ther…
Dresden (IL), 11/17/2025
"At 1613 CST on November 17, 2025, it was discovered that the single train of high pressure coolant injection (HPCI) was inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; ther…
CONTROL ROOM EMERGENCY VENTILATION SYSTEM INOPERABLE
Sequoyah (TN), 11/17/2025
"At 0911 EST, on 11/17/2025, it was discovered that both trains of the control room emergency ventilation system were simultaneously inoperable due to an unauthorized door breach of a door in the control room envelope; t…
Sequoyah (TN), 11/17/2025
"At 0911 EST, on 11/17/2025, it was discovered that both trains of the control room emergency ventilation system were simultaneously inoperable due to an unauthorized door breach of a door in the control room envelope; t…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 18, 2025 at 2:11 PM
CONTROL ROOM EMERGENCY VENTILATION SYSTEM INOPERABLE
Sequoyah (TN), 11/17/2025
"At 0911 EST, on 11/17/2025, it was discovered that both trains of the control room emergency ventilation system were simultaneously inoperable due to an unauthorized door breach of a door in the control room envelope; t…
Sequoyah (TN), 11/17/2025
"At 0911 EST, on 11/17/2025, it was discovered that both trains of the control room emergency ventilation system were simultaneously inoperable due to an unauthorized door breach of a door in the control room envelope; t…
AUTOMATIC ACTUATION OF EMERGENCY AC POWER SYSTEM
Oconee (SC), 11/14/2025
"At 2254 EST, on November 14, 2025, with Unit 2 in no mode at zero percent power, an actuation of the emergency AC power system occurred during verification of electrical system alignment. The reason for the Keowee Hydro units…
Oconee (SC), 11/14/2025
"At 2254 EST, on November 14, 2025, with Unit 2 in no mode at zero percent power, an actuation of the emergency AC power system occurred during verification of electrical system alignment. The reason for the Keowee Hydro units…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 17, 2025 at 3:41 PM
AUTOMATIC ACTUATION OF EMERGENCY AC POWER SYSTEM
Oconee (SC), 11/14/2025
"At 2254 EST, on November 14, 2025, with Unit 2 in no mode at zero percent power, an actuation of the emergency AC power system occurred during verification of electrical system alignment. The reason for the Keowee Hydro units…
Oconee (SC), 11/14/2025
"At 2254 EST, on November 14, 2025, with Unit 2 in no mode at zero percent power, an actuation of the emergency AC power system occurred during verification of electrical system alignment. The reason for the Keowee Hydro units…
AUTOMATIC ACTUATION OF EMERGENCY DIESEL GENERATORS
Clinton (IL), 11/14/2025
"At 1351 CST on 11/14/25, with the unit in mode 1 at 99 percent power, an actuation of the division 1, 2, and 3 emergency diesel generators (EDGs) occurred when a fault occurred on the emergency reserve auxiliary transforme…
Clinton (IL), 11/14/2025
"At 1351 CST on 11/14/25, with the unit in mode 1 at 99 percent power, an actuation of the division 1, 2, and 3 emergency diesel generators (EDGs) occurred when a fault occurred on the emergency reserve auxiliary transforme…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 17, 2025 at 3:11 PM
AUTOMATIC ACTUATION OF EMERGENCY DIESEL GENERATORS
Clinton (IL), 11/14/2025
"At 1351 CST on 11/14/25, with the unit in mode 1 at 99 percent power, an actuation of the division 1, 2, and 3 emergency diesel generators (EDGs) occurred when a fault occurred on the emergency reserve auxiliary transforme…
Clinton (IL), 11/14/2025
"At 1351 CST on 11/14/25, with the unit in mode 1 at 99 percent power, an actuation of the division 1, 2, and 3 emergency diesel generators (EDGs) occurred when a fault occurred on the emergency reserve auxiliary transforme…
LOSS OF ALL OFFSITE POWER TO VITAL BUSSES
Clinton (IL), 11/14/2025
On November 14, 2025, at 1351 CST, while in a system outage window, for the reserve auxiliary transformer 'B' bus work inspections, the emergency reserve auxiliary transformer tripped. This resulted in the loss of offsite power to a…
Clinton (IL), 11/14/2025
On November 14, 2025, at 1351 CST, while in a system outage window, for the reserve auxiliary transformer 'B' bus work inspections, the emergency reserve auxiliary transformer tripped. This resulted in the loss of offsite power to a…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 17, 2025 at 2:41 PM
LOSS OF ALL OFFSITE POWER TO VITAL BUSSES
Clinton (IL), 11/14/2025
On November 14, 2025, at 1351 CST, while in a system outage window, for the reserve auxiliary transformer 'B' bus work inspections, the emergency reserve auxiliary transformer tripped. This resulted in the loss of offsite power to a…
Clinton (IL), 11/14/2025
On November 14, 2025, at 1351 CST, while in a system outage window, for the reserve auxiliary transformer 'B' bus work inspections, the emergency reserve auxiliary transformer tripped. This resulted in the loss of offsite power to a…
LOST EXIT SIGNS
Commerce City, CO, 11/05/2025
The licensee reported two exit signs, each containing 6.0 Ci of tritium, were lost in Commerce City, Colorado.
Manufacturer: Isolite Corporation
Model Number: SLX60
Colorado Event Number: CO250042
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' …
Commerce City, CO, 11/05/2025
The licensee reported two exit signs, each containing 6.0 Ci of tritium, were lost in Commerce City, Colorado.
Manufacturer: Isolite Corporation
Model Number: SLX60
Colorado Event Number: CO250042
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 17, 2025 at 2:11 PM
LOST EXIT SIGNS
Commerce City, CO, 11/05/2025
The licensee reported two exit signs, each containing 6.0 Ci of tritium, were lost in Commerce City, Colorado.
Manufacturer: Isolite Corporation
Model Number: SLX60
Colorado Event Number: CO250042
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' …
Commerce City, CO, 11/05/2025
The licensee reported two exit signs, each containing 6.0 Ci of tritium, were lost in Commerce City, Colorado.
Manufacturer: Isolite Corporation
Model Number: SLX60
Colorado Event Number: CO250042
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' …
HIGH PRESSURE COOLANT INJECTION INOPERABLE
Fermi (MI), 11/12/2025
"On November 12, 2025, at approximately 1250 EST, during surveillance testing of the high-pressure coolant injection (HPCI) system the HPCI minimum flow valve (E4150F012) would not open during stroke testing. HPCI had been removed fr…
Fermi (MI), 11/12/2025
"On November 12, 2025, at approximately 1250 EST, during surveillance testing of the high-pressure coolant injection (HPCI) system the HPCI minimum flow valve (E4150F012) would not open during stroke testing. HPCI had been removed fr…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 4:41 PM
HIGH PRESSURE COOLANT INJECTION INOPERABLE
Fermi (MI), 11/12/2025
"On November 12, 2025, at approximately 1250 EST, during surveillance testing of the high-pressure coolant injection (HPCI) system the HPCI minimum flow valve (E4150F012) would not open during stroke testing. HPCI had been removed fr…
Fermi (MI), 11/12/2025
"On November 12, 2025, at approximately 1250 EST, during surveillance testing of the high-pressure coolant injection (HPCI) system the HPCI minimum flow valve (E4150F012) would not open during stroke testing. HPCI had been removed fr…
ACTUATION OF AUXILIARY FEEDWATER SYSTEM
Callaway (MO), 11/12/2025
"At 0748 CST, on November 12, 2025, Callaway Plant experienced an automatic actuation of the auxiliary feedwater (AFW) system in response to auxiliary feedwater actuation signals (AFAS). A low suction pressure signal was also receive…
Callaway (MO), 11/12/2025
"At 0748 CST, on November 12, 2025, Callaway Plant experienced an automatic actuation of the auxiliary feedwater (AFW) system in response to auxiliary feedwater actuation signals (AFAS). A low suction pressure signal was also receive…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 4:11 PM
ACTUATION OF AUXILIARY FEEDWATER SYSTEM
Callaway (MO), 11/12/2025
"At 0748 CST, on November 12, 2025, Callaway Plant experienced an automatic actuation of the auxiliary feedwater (AFW) system in response to auxiliary feedwater actuation signals (AFAS). A low suction pressure signal was also receive…
Callaway (MO), 11/12/2025
"At 0748 CST, on November 12, 2025, Callaway Plant experienced an automatic actuation of the auxiliary feedwater (AFW) system in response to auxiliary feedwater actuation signals (AFAS). A low suction pressure signal was also receive…
RECOVERED GAUGE
Breckenridge, CO, 11/07/2025
"A gauge service provider reported that a member of the public had contacted them after finding an uncontrolled portable nuclear gauge. The individual observed the gauge fall from the back of a truck and called the service provider's number displayed on …
Breckenridge, CO, 11/07/2025
"A gauge service provider reported that a member of the public had contacted them after finding an uncontrolled portable nuclear gauge. The individual observed the gauge fall from the back of a truck and called the service provider's number displayed on …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 3:41 PM
RECOVERED GAUGE
Breckenridge, CO, 11/07/2025
"A gauge service provider reported that a member of the public had contacted them after finding an uncontrolled portable nuclear gauge. The individual observed the gauge fall from the back of a truck and called the service provider's number displayed on …
Breckenridge, CO, 11/07/2025
"A gauge service provider reported that a member of the public had contacted them after finding an uncontrolled portable nuclear gauge. The individual observed the gauge fall from the back of a truck and called the service provider's number displayed on …
STUCK OPEN SHUTTER
Queen City, TX, 11/07/2025
"On November 7, 2025, the Department was notified by the licensee's radiation safety officer that while removing a Berthold model LB7440 gauge for disposal, the shutter was found in the stuck open position. Open is the normal position for the shutter. T…
Queen City, TX, 11/07/2025
"On November 7, 2025, the Department was notified by the licensee's radiation safety officer that while removing a Berthold model LB7440 gauge for disposal, the shutter was found in the stuck open position. Open is the normal position for the shutter. T…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 3:11 PM
STUCK OPEN SHUTTER
Queen City, TX, 11/07/2025
"On November 7, 2025, the Department was notified by the licensee's radiation safety officer that while removing a Berthold model LB7440 gauge for disposal, the shutter was found in the stuck open position. Open is the normal position for the shutter. T…
Queen City, TX, 11/07/2025
"On November 7, 2025, the Department was notified by the licensee's radiation safety officer that while removing a Berthold model LB7440 gauge for disposal, the shutter was found in the stuck open position. Open is the normal position for the shutter. T…
DAMAGED GAUGE
Wytheville, VA, 11/06/2025
The VRMP was notified by phone of an incident at a soil compaction project site in Wytheville, VA. At approximately 1120 EST, on November 6, 2025, a Troxler 3440 portable nuclear gauge (S/N 71116, 8 mCi Cs-137 and 40 mCi Am-241) was struck by a motor grader …
Wytheville, VA, 11/06/2025
The VRMP was notified by phone of an incident at a soil compaction project site in Wytheville, VA. At approximately 1120 EST, on November 6, 2025, a Troxler 3440 portable nuclear gauge (S/N 71116, 8 mCi Cs-137 and 40 mCi Am-241) was struck by a motor grader …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 2:41 PM
DAMAGED GAUGE
Wytheville, VA, 11/06/2025
The VRMP was notified by phone of an incident at a soil compaction project site in Wytheville, VA. At approximately 1120 EST, on November 6, 2025, a Troxler 3440 portable nuclear gauge (S/N 71116, 8 mCi Cs-137 and 40 mCi Am-241) was struck by a motor grader …
Wytheville, VA, 11/06/2025
The VRMP was notified by phone of an incident at a soil compaction project site in Wytheville, VA. At approximately 1120 EST, on November 6, 2025, a Troxler 3440 portable nuclear gauge (S/N 71116, 8 mCi Cs-137 and 40 mCi Am-241) was struck by a motor grader …
MEDICAL EVENT
Dallas, TX, 09/11/2025
"On November 6, 2025, the Department received a report from the licensee's radiation safety officer (RSO) stating that they had discovered three under exposure events had occurred using Y-90 TheraSphere beads. The events were discovered during a review of these …
Dallas, TX, 09/11/2025
"On November 6, 2025, the Department received a report from the licensee's radiation safety officer (RSO) stating that they had discovered three under exposure events had occurred using Y-90 TheraSphere beads. The events were discovered during a review of these …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 14, 2025 at 2:11 PM
MEDICAL EVENT
Dallas, TX, 09/11/2025
"On November 6, 2025, the Department received a report from the licensee's radiation safety officer (RSO) stating that they had discovered three under exposure events had occurred using Y-90 TheraSphere beads. The events were discovered during a review of these …
Dallas, TX, 09/11/2025
"On November 6, 2025, the Department received a report from the licensee's radiation safety officer (RSO) stating that they had discovered three under exposure events had occurred using Y-90 TheraSphere beads. The events were discovered during a review of these …
FITNESS FOR DUTY EVENT
Millstone (CT), 11/06/2025
"On November 6, 2025, at 1014 [EST], it was determined that a licensed supervisory operator was in violation of the licensee's fitness for duty (FFD) policy. The test result was negative but determined to be reportable under 10 CFR 26.719(b)(2)(ii) …
Millstone (CT), 11/06/2025
"On November 6, 2025, at 1014 [EST], it was determined that a licensed supervisory operator was in violation of the licensee's fitness for duty (FFD) policy. The test result was negative but determined to be reportable under 10 CFR 26.719(b)(2)(ii) …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 7, 2025 at 2:41 PM
FITNESS FOR DUTY EVENT
Millstone (CT), 11/06/2025
"On November 6, 2025, at 1014 [EST], it was determined that a licensed supervisory operator was in violation of the licensee's fitness for duty (FFD) policy. The test result was negative but determined to be reportable under 10 CFR 26.719(b)(2)(ii) …
Millstone (CT), 11/06/2025
"On November 6, 2025, at 1014 [EST], it was determined that a licensed supervisory operator was in violation of the licensee's fitness for duty (FFD) policy. The test result was negative but determined to be reportable under 10 CFR 26.719(b)(2)(ii) …
STOLEN SOURCE
Hickory Corners, MI, 10/02/2025
The licensee reported that a trailer containing an electron capture device with a 5 mCi Ni-63 source was discovered stolen from a university agricultural research station on October 2, 2025. Local law enforcement (Kalamazoo County Sheriff) and Michigan …
Hickory Corners, MI, 10/02/2025
The licensee reported that a trailer containing an electron capture device with a 5 mCi Ni-63 source was discovered stolen from a university agricultural research station on October 2, 2025. Local law enforcement (Kalamazoo County Sheriff) and Michigan …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 7, 2025 at 2:11 PM
STOLEN SOURCE
Hickory Corners, MI, 10/02/2025
The licensee reported that a trailer containing an electron capture device with a 5 mCi Ni-63 source was discovered stolen from a university agricultural research station on October 2, 2025. Local law enforcement (Kalamazoo County Sheriff) and Michigan …
Hickory Corners, MI, 10/02/2025
The licensee reported that a trailer containing an electron capture device with a 5 mCi Ni-63 source was discovered stolen from a university agricultural research station on October 2, 2025. Local law enforcement (Kalamazoo County Sheriff) and Michigan …
OFFSITE NOTIFICATION
San Clemente, CA, 11/05/2025
"At 1109 PST, SONGS made [an] official notification to the [California] Department of Toxic Substance Control (DTSC) relating to one violation/citation non-minor, requiring corrective action related to the hazardous waste facility, permit CAD0006309…
San Clemente, CA, 11/05/2025
"At 1109 PST, SONGS made [an] official notification to the [California] Department of Toxic Substance Control (DTSC) relating to one violation/citation non-minor, requiring corrective action related to the hazardous waste facility, permit CAD0006309…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 6, 2025 at 3:11 PM
OFFSITE NOTIFICATION
San Clemente, CA, 11/05/2025
"At 1109 PST, SONGS made [an] official notification to the [California] Department of Toxic Substance Control (DTSC) relating to one violation/citation non-minor, requiring corrective action related to the hazardous waste facility, permit CAD0006309…
San Clemente, CA, 11/05/2025
"At 1109 PST, SONGS made [an] official notification to the [California] Department of Toxic Substance Control (DTSC) relating to one violation/citation non-minor, requiring corrective action related to the hazardous waste facility, permit CAD0006309…
AUTOMATIC EMERGENCY DIESEL GENERATOR ACTUATION
Wolf Creek (KS), 11/05/2025
"At 1003 Central Standard Time (CST), with [Unit 1] in mode 5 at 0 percent power, an actuation of the 'A' emergency diesel generator (EDG) occurred when energizing main transformers from the switchyard for post-installation …
Wolf Creek (KS), 11/05/2025
"At 1003 Central Standard Time (CST), with [Unit 1] in mode 5 at 0 percent power, an actuation of the 'A' emergency diesel generator (EDG) occurred when energizing main transformers from the switchyard for post-installation …
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 6, 2025 at 2:41 PM
AUTOMATIC EMERGENCY DIESEL GENERATOR ACTUATION
Wolf Creek (KS), 11/05/2025
"At 1003 Central Standard Time (CST), with [Unit 1] in mode 5 at 0 percent power, an actuation of the 'A' emergency diesel generator (EDG) occurred when energizing main transformers from the switchyard for post-installation …
Wolf Creek (KS), 11/05/2025
"At 1003 Central Standard Time (CST), with [Unit 1] in mode 5 at 0 percent power, an actuation of the 'A' emergency diesel generator (EDG) occurred when energizing main transformers from the switchyard for post-installation …
STUCK SOURCE
Deer Park, TX, 10/28/2025
"On October 29, 2025, the Agency received a notification from the licensee regarding a source disconnect that occurred during an industrial radiography operation at a temporary job site. The radiography camera involved is a QSA Global Delta 880 model, containi…
Deer Park, TX, 10/28/2025
"On October 29, 2025, the Agency received a notification from the licensee regarding a source disconnect that occurred during an industrial radiography operation at a temporary job site. The radiography camera involved is a QSA Global Delta 880 model, containi…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 6, 2025 at 2:11 PM
STUCK SOURCE
Deer Park, TX, 10/28/2025
"On October 29, 2025, the Agency received a notification from the licensee regarding a source disconnect that occurred during an industrial radiography operation at a temporary job site. The radiography camera involved is a QSA Global Delta 880 model, containi…
Deer Park, TX, 10/28/2025
"On October 29, 2025, the Agency received a notification from the licensee regarding a source disconnect that occurred during an industrial radiography operation at a temporary job site. The radiography camera involved is a QSA Global Delta 880 model, containi…
STUCK SOURCE
North Salt Lake, UT, 10/29/2025
"An industrial radiography source failed to return to the shielded position. While setting up for a shot, the radiographers repositioned the drive cable to improve their view. The cable was inadvertently placed on a hot pipe, melting approximately 5 feet…
North Salt Lake, UT, 10/29/2025
"An industrial radiography source failed to return to the shielded position. While setting up for a shot, the radiographers repositioned the drive cable to improve their view. The cable was inadvertently placed on a hot pipe, melting approximately 5 feet…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 5, 2025 at 2:41 PM
STUCK SOURCE
North Salt Lake, UT, 10/29/2025
"An industrial radiography source failed to return to the shielded position. While setting up for a shot, the radiographers repositioned the drive cable to improve their view. The cable was inadvertently placed on a hot pipe, melting approximately 5 feet…
North Salt Lake, UT, 10/29/2025
"An industrial radiography source failed to return to the shielded position. While setting up for a shot, the radiographers repositioned the drive cable to improve their view. The cable was inadvertently placed on a hot pipe, melting approximately 5 feet…
STOLEN GAUGE
San Juan Capistrano, CA, 10/29/2025
"On October 29, 2025, a radiation safety officer (RSO) for Tetra Tech BAS, Inc. contacted the Department about a moisture density gauge that was stolen from a temporary storage unit. The gauge was a CPN Model MC-3, S/N M39068922 (10 mCi nominal of Cs…
San Juan Capistrano, CA, 10/29/2025
"On October 29, 2025, a radiation safety officer (RSO) for Tetra Tech BAS, Inc. contacted the Department about a moisture density gauge that was stolen from a temporary storage unit. The gauge was a CPN Model MC-3, S/N M39068922 (10 mCi nominal of Cs…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 5, 2025 at 2:11 PM
STOLEN GAUGE
San Juan Capistrano, CA, 10/29/2025
"On October 29, 2025, a radiation safety officer (RSO) for Tetra Tech BAS, Inc. contacted the Department about a moisture density gauge that was stolen from a temporary storage unit. The gauge was a CPN Model MC-3, S/N M39068922 (10 mCi nominal of Cs…
San Juan Capistrano, CA, 10/29/2025
"On October 29, 2025, a radiation safety officer (RSO) for Tetra Tech BAS, Inc. contacted the Department about a moisture density gauge that was stolen from a temporary storage unit. The gauge was a CPN Model MC-3, S/N M39068922 (10 mCi nominal of Cs…
EMERGENCY DIESEL GENERATOR (EDG) ACTUATION
Surry (VA), 11/03/2025
"On November 3, 2025, at 1215 EST, the 'A' reserve station service transformer (RSST) pilot wire lockout actuated while restoring the 'A' RSST to service. This resulted in the electrical isolation of the 'A' RSST and the Unit 1 'J' e…
Surry (VA), 11/03/2025
"On November 3, 2025, at 1215 EST, the 'A' reserve station service transformer (RSST) pilot wire lockout actuated while restoring the 'A' RSST to service. This resulted in the electrical isolation of the 'A' RSST and the Unit 1 'J' e…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 4, 2025 at 3:41 PM
EMERGENCY DIESEL GENERATOR (EDG) ACTUATION
Surry (VA), 11/03/2025
"On November 3, 2025, at 1215 EST, the 'A' reserve station service transformer (RSST) pilot wire lockout actuated while restoring the 'A' RSST to service. This resulted in the electrical isolation of the 'A' RSST and the Unit 1 'J' e…
Surry (VA), 11/03/2025
"On November 3, 2025, at 1215 EST, the 'A' reserve station service transformer (RSST) pilot wire lockout actuated while restoring the 'A' RSST to service. This resulted in the electrical isolation of the 'A' RSST and the Unit 1 'J' e…
AUTOMATIC REACTOR SCRAM
LaSalle (IL), 11/02/2025
"At 1346 CST with Unit 1 in mode 1 at 100 percent power, the reactor automatically tripped on turbine control valve fast closure due to a generator lockout. The trip was not complex with all systems responding normally post-trip. Due to the reactor p…
LaSalle (IL), 11/02/2025
"At 1346 CST with Unit 1 in mode 1 at 100 percent power, the reactor automatically tripped on turbine control valve fast closure due to a generator lockout. The trip was not complex with all systems responding normally post-trip. Due to the reactor p…
Event Notifications
US Nuclear Regulatory Commission
www.nrc.gov
November 4, 2025 at 3:11 PM
AUTOMATIC REACTOR SCRAM
LaSalle (IL), 11/02/2025
"At 1346 CST with Unit 1 in mode 1 at 100 percent power, the reactor automatically tripped on turbine control valve fast closure due to a generator lockout. The trip was not complex with all systems responding normally post-trip. Due to the reactor p…
LaSalle (IL), 11/02/2025
"At 1346 CST with Unit 1 in mode 1 at 100 percent power, the reactor automatically tripped on turbine control valve fast closure due to a generator lockout. The trip was not complex with all systems responding normally post-trip. Due to the reactor p…