Event Notification Report for January 25, 2022

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/24/2022 - 01/25/2022

EVENT NUMBERS
55707
Agreement State
Event Number: 55707
Rep Org: California Radiation Control Prgm
Licensee: LGC Geotechnical, Inc.
Region: 4
City: Corona   State: CA
County:
License #: 6934-30
Agreement: Y
Docket:
NRC Notified By: L. Robert Greger
HQ OPS Officer: Brian P. Smith
Notification Date: 01/17/2022
Notification Time: 15:44 [ET]
Event Date: 01/15/2022
Event Time: 00:00 [PST]
Last Update Date: 01/17/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
Groom, Jeremy (R4)
CNSNS (Mexico), - (EMAIL)
NMSS_Events_Notification, (EMAIL)
ILTAB, (EMAIL)
Event Text
EN Revision Imported Date: 1/25/2022

EN Revision Text: AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE

The following report was received from the California Department of Public Health via email:

"On Monday, January 17, 2022, the licensee's radiation safety officer reported the theft of a CPN MC-1DR (MD30406938) containing sealed sources of Cs-137 (10 mCi) and Am-241:Be (50 mCi), leak tested 4/2021. The theft occurred overnight between Friday and Saturday 1/14/2022 - 1/15/2022 at an authorized gauge user's (AU) residential home. The AU returned home urgently on Friday due to a family member's illness. The AU did chain the gauge case to the door inside the truck cab but failed to lock the truck before entering his home. The AU discovered that the gauge case was missing early Saturday morning while the truck was parked in the driveway of the home. The CPN nuclear gauge handle was locked to prevent operation, the gauge was locked in its transport case, and the transport case was chained to the door inside the truck cab, but the chain was cut and case/gauge was taken, apparently the only item stolen. The gauge and case had a company name and phone number label adhered to it in case of loss or theft. A police report was filed with the Corona police department (22-03047). The licensee will submit a lost/reward ad in the local paper/website and gather additional information for the follow up investigation."

California Event Number: 011722

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