5 Very High relevance to you
2025

Pilbara Surplus Water Scheme Success

Pilbara Surplus Water Scheme Success
Case studies

This case study outlines BHP’s Pilbara Surplus Water Scheme, a sustainable water management initiative designed to repurpose excess dewatering water and enhance regional groundwater resilience in Western Australia’s Pilbara region.

  • Mining below the water table increases dewatering, producing surplus water
  • By FY2025, Mining Area C abstracted ~47 ML/day, with ~19.5 ML/day surplus
  • Surplus water is returned to aquifers, reducing creek discharges and improving groundwater sustainability
  • Infrastructure includes dewatering bores, reinjection bores, and monitoring network
  • Aligned with WAIO’s target for 50% of surplus water to be put to beneficial use by FY2030
  • Supports BHP’s Water Secure 2030 vision and regulatory compliance

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How this may be relevant to you

Very High
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Relevant to mining industry professionals involved in water resource management and regulatory compliance.

  • Demonstrates scalable solutions for managing surplus groundwater from BWT mining
  • Provides a model for closed-loop dewatering and reinjection systems
  • Supports sustainable mine planning and environmental stewardship
  • Aligns operational water management with long-term mine expansion goals
  • Offers insight into infrastructure investment and monitoring best practices

Content shared in this community may be provided by external contributors. Copyright and responsibility for opinions expressed rest with the original authors.

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