NSW Resources Regulator urges mine sites to safeguard workers against heat stress

The NSW Resources Regulator urges mine sites to safeguard workers against heat stress, calling on employers across Australia to implement protective measures for mine workers and mitigate risks associated with extreme heat.

Extreme heat can result in critical health problems, requiring hospitalisation and possibly leading to death, the Regulator warns. Staying cool and well-hydrated before, during, and after hot weather remains vital for protecting employees at mine sites.

Why Heat Stress Controls Matter for Mine Safety

“Mine operators are required to manage the risk to health and safety associated with extremes of temperature and/or moisture content of air (humidity),” the regulator states.

Effective safety practices depend on more than good intentions. Operators must equip work sites with reliable monitoring equipment and enforce clear controls that respond to changing conditions underground.

Monitoring and Control Measures for Underground Mines

To mitigate heat stress, underground mines must adopt control measures, including monitoring equipment, in regions where workers may operate or travel — particularly when wet-bulb temperature exceeds 27°C.

• Deploy temperature and humidity monitoring equipment at regular intervals throughout work areas
• Establish emergency response procedures for suspected heat-related illness
• Provide accessible hydration stations and rest areas fitted with cooling equipment
• Train supervisors to recognise early symptoms and trigger emergency protocols promptly
• Review and update safety equipment regularly to match seasonal risk levels

Building a Culture of Health and Safety Underground

Robust health and safety planning requires documented procedures alongside physical equipment. Sites should integrate heat stress considerations into broader heat stress management frameworks that cover monitoring equipment, emergency response equipment, and worker training together.

Employers can strengthen compliance using a dedicated Heat Stress SWMS alongside an updated stress policy tailored to mine environments. Pairing these documents with human resources management plans and supporting human resources policies and procedures ensures consistent implementation across mine sites.

Additional resources, including summer heat safe work method statements, can support employers preparing mines for seasonal temperature spikes. For further detail on regulatory expectations, mine operators can learn more here.