The following information was provided by the
Virginia Department of Health, Office of Radiologic Health (
RMP) via email:
On September 10, 2025, at approximately 1500 EDT, RMP was notified of an incident involving damage to a portable nuclear gauge.
Earlier, at approximately 1230, a Troxler Model 4640 B portable nuclear moisture density gauge, containing 9 mCi Cs-137, (SN #2256) was struck by a roller on a paving site at Westmoreland, VA. The authorized user notified the radiation safety officer (RSO) who went to the site to evaluate the gauge condition, and he notified RMP.
Per the RSO, the gauge was clipped on the side by a CB-13 roller during the construction of a roller pattern and control strip. There was damage to the gauge cover and one battery pack. The source rod was not out when it was struck. There is no apparent [damage] to the source or the capsule. The gauge was surveyed onsite using with a TroxAlert 3105 (#64502) [meter] and readings were within acceptable ranges. The gauge was placed in its transport case and returned to the licensee's storage facility to be leak tested. Then the gauge will be sent to Troxler for evaluation.
The Radioactive Materials Program will follow up with an investigation.
Event Report ID No.: VA250003