Healthy Environment, Healthy Community, Healthy Business

Environment Protection Authority

EPA investigating another dam wall collapse at Warkworth mine

Media release: 15 January 2016

The NSW Environment Protection Authority (EPA) is investigating another collapse of part of a sedimentation dam wall at the Warkworth coal mine in the Hunter Valley.

Warkworth personnel contacted the EPA regarding the partial collapse of the wall on 6 January. At that time, the company indicated that the event had not caused or threatened material harm to the environment. Nonetheless, the EPA requested an incident report.

The company also advised the EPA that it had undertaken work to contain the sediment laden water. However, photographs provided to the EPA on 15 January suggest that sediment laden water – made up of soil and sand is continuing to leave the site, and a quantity of sediment from the original incident is yet to be cleaned up.

The EPA has requested additional information from Warkworth and will be conducting a site inspection to assess the impact. Depending on the outcome of the investigation, the EPA will consider further regulatory action.

The EPA has also directed the company to clean-up the site to prevent further mobilisation of sediment, both on and off the site, and clean up the accumulated sediment that has already left the site.




Contact: Public Affairs

Page last updated: 15 January 2016