Residents of a small community near Orange, New South Wales, have initiated a significant environmental class action against Cadia Holdings, the operator of the Cadia goldmine. This legal challenge, which highlights a range of alleged environmental violations, seeks compensation for the alleged detrimental effects of pollution on local water sources, air quality, and property values.
Allegations of a ‘Toxic Trifecta’
The lawsuit, filed in the Supreme Court of New South Wales, centres on claims that the Cadia goldmine has produced a “toxic trifecta” of pollution affecting air, land, and water. The Cadia Community Sustainability Network, which is spearheading the legal action, is represented by William Roberts Lawyers. They assert that residents have suffered exposure to harmful levels of heavy metals and dust, resulting in serious health and environmental concerns.
Lead plaintiff Jann Harries, who resides approximately three kilometres from the mine, expressed grave worries about the contamination of her water supply and the potential impact on local livestock. “I’ve got heavy metals in my water, in my dams, my water tanks are testing extremely high for heavy metals,” Harries stated. She further lamented the dust settling on her property, which could adversely affect her animals.
Harries emphasised that while the community does not seek the mine’s closure, they expect the operators to act as responsible neighbours. “They have to be good neighbours to all of us that are living around them,” she said.
Previous Environmental Violations
This legal attempt follows a backdrop of community grievances and regulatory scrutiny. In 2025, the mine was penalised with a $350,000 fine after being found guilty of breaching the Environmental Protection Act on three occasions related to air quality regulations. This action was prompted by an investigation from the NSW Environment Protection Authority (EPA), which responded to local concerns regarding dust emissions.
Despite these findings, a review commissioned by the EPA concluded there was “no conclusive evidence” linking Cadia’s operations to significant degradation of local waterways. However, it did highlight elevated levels of heavy metals in groundwater deposits and identified shortcomings in the mine’s environmental monitoring practices.
Ongoing Monitoring and Health Assessments
In August, findings from a NSW Health investigation involving 14 volunteers from seven properties near the mine indicated “no definitive evidence” of health impacts from heavy metal exposure. Nevertheless, the EPA has been proactive in addressing air quality concerns; a 22-month air quality monitoring programme concluded in June 2024 found that air quality around the mine was generally acceptable.
The community’s legal action, according to principal lawyer Oliver Gayner, represents a “last resort” after years of ignored pleas to Newmont, Cadia’s parent company, and the EPA. “They have provided scientific evidence to Newmont and the EPA, but their concerns have not been addressed,” he remarked.
The Company’s Response
In response to the legal proceedings, a spokesperson for Newmont confirmed that Cadia had been served with the lawsuit and stated that the company would follow the necessary legal protocols. “Newmont takes its legal and regulatory obligations seriously and is committed to environmental stewardship,” the spokesperson added, while refraining from further comment due to the ongoing legal situation.
Why it Matters
The outcome of this class action could have far-reaching implications not just for the residents of Orange but for mining operations across Australia. It raises critical questions about environmental accountability and the responsibilities of mining companies to local communities. As concerns about pollution and public health continue to mount, the Cadia case may set a precedent for how similar disputes are handled in the future, potentially influencing regulatory frameworks and community rights in the context of industrial operations.