The following report is an edited version of information was provided by the
North Carolina Radiation Protection Section via e-mail:
On February 16, 2012 the agency [NC Radiation Protection Section] was notified of a propane tank explosion near Gastonia, NC by the corporate RSO of JANX [NDT/NDE]. This morning when workers at the job site started a generator, an explosion [occurred and] damaged an x-ray trailer at the site. The source of the explosion seems to be a leaking valve on a propane tank. The explosion 'blew off' a wall [of the trailer] and resulted in some burning. On board this trailer was a 1 Ci Ir-192 stopping source contained in a SPEC check model housing. The corporate RSO indicated that the trailer had three compartments and, from what he understood, the back-up x-ray unit onboard the trailer was damaged (Panasonic XIT) [but] the compartment in which the [Ir-192] source was stored was not damaged during the explosion. The housing of the source itself did not show any damage and all radiation levels were normal. The 1 Ci source was moved to a secured Industrial Radiography truck containing a SPEC 150 camera with 110 Ci of Ir-192 that was also on site but not damaged during the explosion. This truck has increased controls on it and was not damaged.
Two employees have been taken to the emergency room for injuries and the local RSO is on his way to the incident (~10:30am). A NC Rad Mat Inspector was in the area and he will go and verify the report of the corporate RSO.
The corporate RSO that will be expected [to provide] a written report within 30 days and to leak test the source to ensure that there was no damage. [The NC State x-ray staff] has been notified about the industrial radiography unit [and] they have since contacted the licensee. Since they were working under reciprocity of an NRC license, [NC will also] notify NRC Region I agreement state officer, Monica Oreindi.
There are no radiation concerns to public health and safety at this time. The inspector was sent just for verification of the report.
The North Carolina License Number of JANX is 085-1117-2 and physical location address is 1073 Kentland Drive in King, NC 27021. The licensee had issued a reciprocity notification using their NRC license NRC: 21-16560-01 (Reciprocal License NO. 122-0361-R) for their work at the location of the explosion. The notification listed 1441 Delta Drive, Gastonia, NC as the location for work.
Local media is on site.