State government inspectors spent the day at Alcoa’s Wagerup Alumina Refinery as part of an investigation into a spill of alkaline processing liquid.
Inspectors from the Department of Mines have spent the day at Alcoa’s Wagerup Alumina Refinery as part of an investigation into a spill of alkaline processing liquid at the plant earlier this week.
A spokesperson for Alcoa of Australia confirmed staff at the plant became aware of the spill about 10.30pm on Tuesday evening, which is believed to have come from a processing liquid tank with a capacity of seven million litres.
The spill is understood to have been contained to the operating footprint of the refinery, with the majority of the material captured by the bund underneath the tank and on the bitumen.
It is not clear how many litres were released.
No employees were in the immediate vicinity at the time of the incident and Alcoa has since conducted a clean-up of the site.
Department of Mines Industry Regulation and Safety Dangerous Goods and Petroleum Safety director Steve Emery told Business News that Alcoa had advised the department of the incident the following morning.
After receiving additional information on Thursday, Mr Emery said the department decided that it was appropriate for inspectors to travel to the site to better understand the nature, extent, and cause of the incident, as well as any safety and compliance implications.
The investigation into the cause of the incident is ongoing.