Mount Isa Mine - Black Rock Open Cut

Mount Isa, Queensland, Australia
89 Camooweal Street Mount Isa City Queensland 4825 AU

The Mt Isa Mine is located adjacent to Mt Isa in far northwest Queensland. Xstrata Copper proposed to expand a previously decommissioned open pit copper mine, known as the Black Rock Open Cut (BROC).

KCB was commissioned to undertake a groundwater and geochemical assessment of the BROC groundwater system during operation and post-closure of this pit.

Aspects of this work included:

  • Review of available hydrological, hydrogeological, and geological data to develop a conceptual hydrogeological model.
  • Geochemical description of the Black Rock Open Cut (BROC) waste rock based on available information.
  • Completion of groundwater modelling to assess potential impacts to the regional groundwater system post-closure.
  • Conceptual geochemical modelling for the BROC waste rock dump (WRD).
  • A simplified geochemical model of the WRD.
  • Discussion of geochemical and water quality risks from the WRD and qualitative mitigation measured using the established WRD as a comparison.
  • Recommendation for monitoring measures to reduce uncertainty in predictions and future geochemical characterisation required for the BROC waste rock and WRD.
Mount Isa 4 months ago
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