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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 52846 | 10 July 2017 04:00:00 | Agreement State | Agreement State Report - Troxler Gauge Damaged at Construction Site | The following report was received from the North Carolina Department of Health and Human Services via email: North Carolina Licensee ECS Carolinas, LLP, License Number 092-0253-1 reported that a Troxler Model 3440, S/N 24665 Moisture Density Gauge had been damaged on July 10, 2017 at a construction site in Chapel Hill, NC. The gauge contained 8 mCi of Cesium-137 and 40 mCi of Americium-241. An approved technician backed up a company vehicle over the gauge. North Carolina Radiation Protection immediately dispatched an inspector on site to perform a reactive inspection same day. Event Date and Notification Date: July 10, 2017. Licensee had cordoned off a 15+ foot barrier around the vehicle and the gauge. Surveys taken at various distances from the gauge and on contact confirmed that the sources were intact and shielded in the gauge. The gauge sustained minimal damage to the guide rod and the source rod was not extended at the time of the incident. No other local or federal authorities were contacted for this event. The gauge was returned to the manufacturer for repair or disposal. A 30-Day Report is pending from the licensee and follow-up information will be provided. NC Event Report Tracking Number: 170026. Event reportable due to: 10 CFR 30.50(b)(2)(ii). | ||
| ENS 44799 | 19 January 2009 22:15:00 | Agreement State | Agreement State Report - Lost, Then Found, Moisture Density Gauge | The following information was received from the State of North Carolina via email: N.C. Radiation Protection Section was notified on 19 Jan 2009 by the State EOC of the loss of a Troxler Model 3430 portable moisture density gauge (Serial No. 20385) possessed by ECS Carolinas under a specific license. The gauge contained two sealed sources: (1) Cesium-137, 8 mCi, source serial no. 75-1733 and (2) Americium-241:Beryllium, 40 mCi, source serial no. 47-15863. The device was lost while being transported between job sites. While in transit, the device was on the tailgate of the transport vehicle; the device was not secured in its transport box nor was it blocked and braced. The Greensboro Police and Fire Departments were notified by the company's RSO at 17:35 (hrs.) and arrived at the scene. Efforts to find the device were not successful. NC Emergency Management was notified by the company's RSO. Instrotek (a local vendor) notified the RSO that a citizen passer-by had observed the device being struck by an SUV on Merritt Drive in Greensboro, NC. The citizen stopped and placed the device in the bed of his pickup truck and transported it to his home in Burlington, NC. The citizen notified Instrotek (telephone number on calibration label on device) of his discovery. A Health Physicist from the NC Radiation Protection Section was dispatched to the citizen's residence and arrived at 19:45 (hrs.). The device was located on the back, screened porch of the residence, well away from any occupants of the residence. The plastic housing of device was broken, but was otherwise in good condition. Radiation surveys indicated that the sources were in the shielded position, the source rod was in good condition and in the fully retracted position. The source handle/ rod assembly was not locked. The citizen reported that no one had extended the source rod while the device was in his possession. The RSO and an Authorized User from ECS Carolinas, LLP arrived at the residence, packaged the device in an appropriate transport box, blocked and braced the box in a company pickup truck, and transported the device to the authorized storage site at their home office in Greensboro, NC. There were no exposures to radiation from these sources during this event. The Health Physicist was notified on 20 January 2008 by Troxler Electronics that it took possession of the device for damage assessment and repair. The investigation of this event by the NC Radiation Protection Section is ongoing. NC Event Report ID No.: NC-09-08 | ||
| ENS 43938 | 28 January 2008 17:00:00 | Agreement State | Agreement State Report - Damaged Moisture Density Gauge | N.C. Radiation Protection Section was notified on 28 January 2008 by the RSO for ECS Carolinas, LLP Charlotte office that one of their portable moisture/density gauges (Humboldt Model 5001) was damaged at a construction site in Charlotte, NC. The gauge contains two sealed sources: (1) Cesium-137, 10 milliCuries (nominal) and (2) Americium-241:Beryllium, 50 milliCuries (nominal). Serial numbers for the gauge and the sources were not immediately available. The RSO responded and performed confirmatory measurements on the device using a hand-held GM survey instrument. The gauge handle was detached from the source rod and index rod and the case has some minor damage. The index remained attached to the gauge and the source rod remained within the shield. The RSO's survey confirmed that the Cesium-137 source is still contained within the shield. The licensee also performed a survey of the area where the gauge was initially struck and readings were at background levels (approx. 0.05 mR/hr). The readings at one meter from the gauge were approx. 0.4 mR/hr (consistent with the TI (Transportation Index)) and at one foot were approx. 2-3 mR/hr. The licensee has been in contact with the manufacturer and has received instructions on packaging and returning the device to Humboldt Scientific (Raleigh, NC). The device has been transported back to the licensee's storage facility and will be returned to Humboldt's Raleigh facility later this week. North Carolina has assigned Event Report ID No. NC-08-03. |