At Cadia, we use water from a variety of sources: surface water, ground water, tailings reclamation and mine dewatering.
Where practical, we recycle water to reduce consumption. Around 68 per cent of the water used at Cadia is recycled. Its main use it to process crushed ore into copper concentrate.
Our Water Management Plan demonstrates our site’s approach to water management, including onsite management and assessing potential impacts on local water resources. The plan covers surface water and groundwater resources in Cadiangullong Creek, Flyers Creek, Swallow Creek and Panuara Rivulet catchments.
The original water management plan was developed by Newcrest in consultation with the NSW Office of Water (NOW), Department of Environment, Climate Change and Water (DECCW) and local residents. Consultation with local residents was conducted in three focus groups:
Our monitoring program includes:
The site water balance was completed in line with the Minerals Council of Australia (MCA) Water Accounting Framework. The framework is an initiative of the MCA to allow for consistent reporting of water use in the minerals industry and to meet the requirements of the Australian Water Accounting Standard, which is currently under development of the Australian Bureau of Meteorology Water Division.
The site water balance for Cadia is published each year in the Annual Environmental Management Report (AEMR) that can be downloaded from the Cadia Performance Reporting web page.