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| Entered date | Event description | |
|---|---|---|
| ENS 55863 | 27 April 2022 13:26:00 | The following is a summary of information received from the New Jersey Department Environmental Protection (NJDEP) by e-mail: On 4/27/2022, North State Materials notified NJDEP that an asphalt roller bumped a density gauge (Troxler model 4640-B, serial #77923 with a Cs-137 source up to 9 milliCuries) at a jobsite in Harmony, New Jersey. The incident was caused by heavy equipment operator error. The operator intended to move the roller backwards, but instead moved forward. The damage was limited to the faceplate and the plastic on one corner of the gauge. The licensee surveyed the gauge to confirm the source was properly shielded prior to transporting it to the licensee's storage location in Philipsburg, NJ. A sealed source leak test is pending. NJ Incident Number: NJ-22-0003 |
| ENS 52206 | 27 August 2016 21:06:00 | The following was received from the State of New Jersey via email: NJDEP (New Jersey Department of Environmental Protection) received notification from New Jersey Transit Police at 1426 EDT on Saturday, 8/27/16, that a Niton xlp 300 series XRF with serial number 7710 belonging to New York licensee TRC Environmental Corporation was left on a New Jersey Transit bus on Thursday, 8/25/16 at approximately 1845 EDT. The licensee reported the loss of the device to New York State Department of Health on Friday, 8/26/16. The Cadmium-109 source in the device has a maximum activity of 50 mCi (per sealed source registry). This is being reported under 10 CFR 20.2201(a)(1)(i) because it exceeds 1000 times the value for Cd-109 in Appendix C. The licensee employee who left the device on the bus was taking it home to have it for a job in New York the next day. They did not plan to use the device in New Jersey. NY DOH (New York Department of Health) officials indicated that they will provide NJDEP with more information on Monday, 8/28/16." State Report #: NJ-16-02
The device was found on a New Jersey Transit bus in Weehawken, New Jersey and was picked up by the licensee on 9/1/16. New York Department of Health provided New Jersey DEP with the following information from their licensee: New York License Number - C3264. Source S/N - TR3464. Device S/N - 22323. Activity at time source was lost - 26.8 mCi (Cd-109). This event is the same event as EN 52207 which was reported by NY DOH. Notified R1DO (Gray), ILTAB (Whitney), and NMSS Events Notification (E-mail). 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 |
| ENS 52008 | 15 June 2016 16:19:00 | The New Jersey Department of Environmental Protection was informed that a vehicle containing a Troxler gauge Model 3411B, S/N 19870, was involved in an accident. New Jersey Department of Environmental Protection responded to the scene. The gauge was damaged, but radiation levels around the gauge were normal. The licensee's Radiation Safety Officer took possession of the gauge.
The following report was received via e-mail: Local HAZMAT notified the New Jersey Department of Environmental Protection (NJDEP) that a vehicle that was towed from the scene of a motor vehicle accident was found to contain a portable (nuclear) gauge. NJDEP staff responded to the towing yard and identified the device as a Troxler 3411-B moisture-density gauge belonging to New Jersey licensee Atlantic Engineering Laboratories, Inc. The source rod was fully retracted, but the sliding block on the bottom of the gauge was stuck open. The exposure rate at the opening in the plate was 5.2 mR/hr. The licensee's RSO came to the site, closed the sliding block, performed a leak test, and returned the device to its Type A package. The RSO took possession of the gauge for transport to the licensee's licensed storage location. Am-241/Be source - 44 mCi Cs-137 source - 9 mCi Notified the R1DO (Kennedy) and NMSS Resources (via e-mail). |