ENS 55541

v t e ENS Event
20:00 Oct 22, 2021
Title	Damaged Moisture Density Gauge
Event Description	The following information was received from the state of Illinois via email: The Illinois Emergency Management Agency operations center was contacted at 1904 CDT on 10/22/21 by the Radiation Safety Officer (RSO) for Flood Testing Laboratories (RML IL-01651-01) to advise that at approximately 1500 CDT that afternoon, a Troxler 3430 moisture density gauge [(40 milliCurie Am-241/Be and 8 milliCurie Cs-137 source)] was struck by a bulldozer on a construction site. The operator was uninjured and reportedly promptly notified the RSO. The area was secured and the RSO responded to the scene to package and secure the damaged gauge. The source rod was not extended when struck (glancing blow with blade) and both the source rod and the americium source housing were undamaged. The gauge was able to be repackaged in the transport container and is currently in safe storage in the licensee's facility in Chicago. The licensee does not own a radiation survey meter. Leak tests have been collected and the manufacturer contacted for expedited processing. Agency inspectors will investigate further next week to determine the adequacy of emergency procedures, results of leak tests, and the proximity/awareness of the operator during the incident. This matter is reportable under 32 Ill. Adm. Code 340.1220(c)(2) and was reported to the NRC Operations Center the same day under NMED event number IL210033.

ENS 55541 +/-
Where
Flood Testing Labratories Chicago, Illinois (NRC Region 3)
License number:	IL-01651-01
Organization:	Illinois Emergency Mgmt. Agency
Reporting

Agreement State
Time - Person (Reporting Time:+2.42 h0.101 days <br />0.0144 weeks <br />0.00331 months <br />)
Opened:	Gary Forsee 22:25 Oct 22, 2021
NRC Officer:	Brian Lin
Last Updated:	Oct 22, 2021
55541 - NRC Website
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