Event Notification Report for January 23, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/22/2023 - 01/23/2023
EVENT NUMBERS
56324
56324
Agreement State
Event Number: 56324
Rep Org: Mississippi Div of Rad Health
Licensee: Tronox, LLC
Region: 4
City: Hamilton State: MS
County:
License #: MS-149-01
Agreement: Y
Docket:
NRC Notified By: Jeff Algee
HQ OPS Officer: Bill Gott
Licensee: Tronox, LLC
Region: 4
City: Hamilton State: MS
County:
License #: MS-149-01
Agreement: Y
Docket:
NRC Notified By: Jeff Algee
HQ OPS Officer: Bill Gott
Notification Date: 01/26/2023
Notification Time: 13:20 [ET]
Event Date: 01/23/2023
Event Time: 00:00 [CST]
Last Update Date: 01/26/2023
Notification Time: 13:20 [ET]
Event Date: 01/23/2023
Event Time: 00:00 [CST]
Last Update Date: 01/26/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Agrawal, Ami (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Agrawal, Ami (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK SHUTTER
The following information was provided by the Mississippi Division of Radiological Health via email:
"During routine preventive maintenance on 1/23/2023, Tronox, LLC, discovered a stuck shutter on their Ohmart SHF-1-0, serial number 2641GK, 10mCi Cs-137. The shutter is stuck in its normal operating position.
"Using a Ludlum model 2241-2, serial number 313844 with a Ludlum Model 44-2 detector, the licensee measured 150 microrem/hr at 1 meter from the source and 1.4 millirem/hr at the surface.
"The gauge is mounted on an elevated platform in a process area. The area is not a routinely occupied work area and restrictions have been posted. The stuck shutter appears to be caused by corrosion. The licensee is working on a timeline for the repair.
"Mississippi Event Number: MS-230001"
The following information was provided by the Mississippi Division of Radiological Health via email:
"During routine preventive maintenance on 1/23/2023, Tronox, LLC, discovered a stuck shutter on their Ohmart SHF-1-0, serial number 2641GK, 10mCi Cs-137. The shutter is stuck in its normal operating position.
"Using a Ludlum model 2241-2, serial number 313844 with a Ludlum Model 44-2 detector, the licensee measured 150 microrem/hr at 1 meter from the source and 1.4 millirem/hr at the surface.
"The gauge is mounted on an elevated platform in a process area. The area is not a routinely occupied work area and restrictions have been posted. The stuck shutter appears to be caused by corrosion. The licensee is working on a timeline for the repair.
"Mississippi Event Number: MS-230001"