The following is a synopsis of information received via email from the State of California:
On 8/29/2019, California's Radiologic Health Branch (RHB) was contacted by the Radiation Safety Officer (RSO) of Construction Testing and Engineering, South, Inc. to report a damaged moisture/density gauge. The gauge was damaged on 8/29/2019 at 0730 PDT, when it was run over by construction equipment at a building site located on the Marine Corps Logistic Base in Barstow, CA. It was determined that the gauge's source rod was damaged, but the source appeared to be undamaged and remained in the encapsulated container. The RSO placed the damaged gauge back in the Type A transport container and the gauge will be taken to Maurer Technical Services for evaluation and disposal.
The gauge is a CPN model MC3 moisture/density gauge (serial number: M38058257) with a 0.37 GBq Cs-137 and 1.9 GBq Am-241 source.
This is being reported to the NRC Operations Center as a 24-hour report under 10 CFR 30.50(b)(2) since the radioactive gauge cannot be locked in the shielded position (due to the source rod being broken).
California 5010 Number: 082919