At approximately 1700
MST on 11/5/03, a technician using a
CPN model MC-3
moisture density gauge was told to relocate her vehicle on the jobsite at 8247 Shaffer Place in Littleton, CO. The
gauge contains 10 millicuries of
Cs-137 and 50 millicuries of
Am-241, with serial number M380804502. The technician placed the
gauge inside its orange transport box in the back of her truck, but she left the tailgate open, and did not chain the box to the bed of the truck.
The technician left the jobsite at approximately 1730 MST to return to the main office 25 miles away. Shortly before arriving at the main office, the technician realized that the truck bed was open and the transport box (and gauge) were not in the truck. The technician turned around and re-traced her route back to the jobsite, but was unable locate the gauge. The technician reported the missing gauge to the Radiation Safety Officer (RSO) at 1830 MST. The RSO, along with other supervisors, retraced the route to the jobsite and searched for the gauge, which was not found.
The licensee notified the
Colorado Department of Public Health and Environment (CDPHE) at 0530
MST on 11/6/03. The CDPHE informed the licensee that a written report is required within 30 days. The licensee notified local law enforcement officials regarding the lost
gauge, and issued a press release offering a reward for information leading to its recovery.