https://www.der.wa.gov.au/images/documents/our-work/licences-and-works-approvals/Decisions_/L6079/L6079%20%2025-08-2025%20AR.pdf
Summarised -Licence Amendment – Key Points
Licence Holder: Greatland Pty Ltd
Site: Telfer Gold Mine, Pilbara region, WA
Date of Amendment: 25 August 2025
Reason: Approval of operational changes and expansion works
Outcome: Licence amended following environmental and health risk assessment
Approved Amendments
Tailings Storage Facility (TSF 8): Construction of Stage 3 and 4 raises
Dewatering (Category 6): Increased capacity to manage higher volumes pumped to Pit 13
Crushing (Category 12): Addition of a mobile crushing plant within the Southern Waste Rock Dump
Landfill (Category 63): Expansion of areas for tyre disposal and inert waste
️ Existing Operations Summary
Mining: One open pit (West Dome) + one underground mine
Crushing → SAG mill → ball mill
Gravity gold recovery + flotation
Cyanide leaching and gold recovery using carbon
Copper and cyanide recovery from tailings
Tailings thickening and disposal via TSF 8
Tailings transport: Slurry pipeline network around TSF 8 perimeter
Water return: Decant water pumped back to processing plant for reuse
TSF 8 – Stage 3 & 4 Raises
Construction method: Downstream raising (safer and stable)
Wider benches at crest levels to allow operations and construction at the same time
No change to tailings delivery or water return systems
Existing infrastructure will be relocated as raises progress
Embankment Structure
Zone 2B: Compacted, low-permeability clay/silt liner to prevent seepage
Zone 4B: Rockfill layer for support and mass stability
1-metre “step-in” at Stage 3 toe to maintain liner thickness
Access constraint: Tailings pipe area reduced to 3.0–3.5 m during Stage 3 works
Environmental & Risk Considerations
Risks to the environment and public health assessed
Department determined impacts are manageable
Amendment granted with standard conditions applied
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