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Impact High

New Chilean regulation requires mining not to exceed 10% of continental water use by 2025 and 5% by 2040. Operations must achieve 85-90% water recirculation.

readTSF Technical Team
RegulationWaterChileDesalinationRecirculation

The New Regulatory Framework

Chile has established the world's strictest rules for water use in mining. The National Mining Policy 2050 is not a suggestion - it's a binding roadmap that will transform how every mine in the country operates.

10%
2025 Limit
Maximum continental water use allowed for mining
5%
2040 Limit
Long-term goal for reducing water dependency
85-90%
Recirculation
Water reuse rate required in modern plants
130%
Desal Growth
Projected increase in desalination capacity by 2031

What It Means For Operations

Major miners are already responding. BHP and Antofagasta currently use 30% desalinated water, with a target to reach 50% by 2030. But for medium and small operations, the challenge is greater.

The copper sector's water consumption will grow 2.3% annually to reach 23.7 m³/s by 2034. Seawater use will increase 230% this decade.

Compliance Technologies

Operations have several options to comply:

  • Desalination - Expensive but independent of continental sources
  • Advanced recirculation - Treatment and reuse of process water
  • Effluent clarification - Water recovery from waste streams
  • Tailings thickening - Reduction of water sent to dams

The Role of Filtration

Mobile filtration allows operations to implement recirculation without large capital investments. A clarification system can recover 80-90% of water from streams currently discarded, directly contributing to recirculation target compliance.

Conclusion

Mining Policy 2050 is non-negotiable. Operations that don't adapt will face operational restrictions, fines, and eventually, closure. Investment in water management technologies is not an expense - it's the license to keep operating.

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