Event Notification Report for June 23, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/22/2023 - 06/23/2023
Agreement State
Event Number: 56590
Rep Org: Colorado Dept of Health
Licensee: Denver Art Museum
Region: 4
City: Denver State: CO
County:
License #: GL001407
Agreement: Y
Docket:
NRC Notified By: Kathryn Kirk
HQ OPS Officer: Adam Koziol
Licensee: Denver Art Museum
Region: 4
City: Denver State: CO
County:
License #: GL001407
Agreement: Y
Docket:
NRC Notified By: Kathryn Kirk
HQ OPS Officer: Adam Koziol
Notification Date: 06/26/2023
Notification Time: 11:49 [ET]
Event Date: 06/23/2023
Event Time: 00:00 [MDT]
Last Update Date: 06/26/2023
Notification Time: 11:49 [ET]
Event Date: 06/23/2023
Event Time: 00:00 [MDT]
Last Update Date: 06/26/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB, (EMAIL) (EMAIL)
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB, (EMAIL) (EMAIL)
AGREEMENT STATE REPORT - LOST EXIT SIGN
The following is a synopsis of information provided by the Colorado Department of Public Health and Environment via email:
On 6/23/23, the licensee discovered that a tritium exit sign was lost. The exit sign was an Isolite Corporation Model 2000 containing 7.62 Ci of tritium (H-3). This is being reported under Colorado Regulations Section 4.51.1.1 (10 CFR 20.2202(a)(1)(i)).
Event Report ID No.: CO230017
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
The following is a synopsis of information provided by the Colorado Department of Public Health and Environment via email:
On 6/23/23, the licensee discovered that a tritium exit sign was lost. The exit sign was an Isolite Corporation Model 2000 containing 7.62 Ci of tritium (H-3). This is being reported under Colorado Regulations Section 4.51.1.1 (10 CFR 20.2202(a)(1)(i)).
Event Report ID No.: CO230017
THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
Power Reactor
Event Number: 56588
Facility: Perry
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Robert Heil
HQ OPS Officer: Adam Koziol
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Robert Heil
HQ OPS Officer: Adam Koziol
Notification Date: 06/23/2023
Notification Time: 17:04 [ET]
Event Date: 06/23/2023
Event Time: 15:21 [EDT]
Last Update Date: 06/23/2023
Notification Time: 17:04 [ET]
Event Date: 06/23/2023
Event Time: 15:21 [EDT]
Last Update Date: 06/23/2023
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):
Orlikowski, Robert (R3DO)
Orlikowski, Robert (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION - ENVIRONMENTAL
The following information was provided by the licensee via email:
"At 1521 EDT on 6/23/2023, Perry Nuclear Power Plant reported elevated levels of tritium in the underdrain system to the State of Ohio as a non-voluntary reporting of tritium. An investigation is currently ongoing to identify the cause of the elevated tritium levels. The tritium levels did not exceed any NRC regulations or reporting criteria. Tritium has not been detected in any other locations and is not expected to impact groundwater or exceed any limits in the Off Site Dose Calculation Manual (ODCM).
"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."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The following agencies were notified by licensee:
Lake County Emergency Management Agency (EMA)
Ashtabula County EMA
Geauga County Department of Emergency Services
Ohio EMA Radiological Branch
The following information was provided by the licensee via email:
"At 1521 EDT on 6/23/2023, Perry Nuclear Power Plant reported elevated levels of tritium in the underdrain system to the State of Ohio as a non-voluntary reporting of tritium. An investigation is currently ongoing to identify the cause of the elevated tritium levels. The tritium levels did not exceed any NRC regulations or reporting criteria. Tritium has not been detected in any other locations and is not expected to impact groundwater or exceed any limits in the Off Site Dose Calculation Manual (ODCM).
"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."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The following agencies were notified by licensee:
Lake County Emergency Management Agency (EMA)
Ashtabula County EMA
Geauga County Department of Emergency Services
Ohio EMA Radiological Branch