About  Environment

Working With the Earth, Not Against It

At Conundrum, our quarrying processes focus on repurposing natural resources, not wasting them. It’s better for us, better for you – and better for the environment.

Our Promises to the Planet

We comply with all applicable standards and regulations, and promise to:

  • Strategically rehabilitate operations
  • Preserve indigenous flora and fauna on sites
  • Reuse topsoil removed from work areas
  • Implement weed and pest control programs
  • Controlled blasting practices
  • Consult with people affected by our work
  • Decrease the impact of our operations
  • Collect, use and reuse water efficiently
  • Reduce waste and dispose of it properly
  • Recycle materials

Learn more about these commitments through our Environmental Policy.

Best Practice at Every Site

All Conundrum sites have been designed with the earth in mind. And all our management plans are living documents – continually revised to meet and exceed industry standards.

What’s more, our permission to operate (Work Authority) is regulated and audited by the state government. This ensures we comply at all times.

From preserving heritage sites to dust, water and noise management, Conundrum goes above and beyond to minimise hazards to the environment.

Supporting our Words – with Actions

Stawell Quarry’s progressive rehabilitation

In 2025 our Stawell Quarry, at Mt Drummond, was once again recognised as one of the Victorian extractive industry’s leaders for our approach to rehabilitation planning and delivery.

Our ongoing commitment to implementing an innovative and proactive rehabilitation program, which interacts closely with local environmental groups, saw Stawell Quarry receive its second commendation as part of the CMPA’s Best Practice in Progressive Rehabilitation (see here: Awards highlight quarry rehabilitation – Resources Victoria).

How do we do it?
A key component to the success of Stawell Quarry’s rehabilitation program is our focus on local partnerships. Our long-term relationship with Project Platypus as well as partnerships with the local landcare group and local growers, have enabled our rehabilitation program to be informed by local knowledge which in turn sees a higher level of rehabilitation success.

What else do we do differently?
Rehabilitation is actively occurring alongside extraction. This means it is constantly being thought of and undertaken. From the location of access roads through to the incline of terminal faces, rehabilitation is factored into almost every step of the process.

Just as rehabilitation starts well before the extraction process finishes, it continues well after the area has been exhausted. Ongoing monitoring of vegetation cover and species establishment as well as supplementary planting have all contributed to enabling us to achieve target densities.

At Conundrum Holdings, we are committed to continually improving our rehabilitation practices, to help ensure that we return land to a stable and ecologically valuable state as extraction processes.