A missing electronic detonator at an underground mine has prompted a reminder from the NSW Resources Regulator about obligations around the usage of explosives.
The incident was one of 26 reportable events recorded by the regulator in the week ending January 30.
Four electronic detonators were taken underground on the day shift for charging and firing across four faces. By the end of the shift, three faces had been loaded and fired, with the remaining explosives handed over to night shift workers.
During the shift change, night shift crews were unable to locate one detonator. According to the regulator, it is assumed the device was inadvertently left at one of the previously fired locations and consumed in the blast.
The regulator said mine operators and persons conducting a business or undertaking must have documented safe systems of work for the use, storage, transport and handling of explosives.
Those appointed to handle explosives at mining operations also have obligations under the Explosives Act 2003 to maintain control and security of explosives.
Following the incident, the regulator is urging operators to review its guide on reporting explosive-related incidents under the Explosives Act 2003 and Explosives Regulation 2024.
Under section 81 of the regulation, licence holders must immediately notify the resources regulator of any loss or theft of explosives or explosive precursors, including attempted theft or suspicious activity that threatens security. Operators are also required to notify other relevant authorities, including NSW Police and SafeWork NSW.
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