Geochemical Assessments and Waste Classification

WRC provides specialist geochemical assessment and waste classification services to support mining, industrial, waste management, and environmental compliance projects across Africa.

Our investigations are undertaken to evaluate geological and waste materials (including overburden, discard, tailings, ore, and process residues) for disposal, storage, environmental risk, and long-term management purposes in accordance with applicable waste classification and landfill disposal regulations, including GN R. 634/635 and SANS 10234 requirements.

LWRC combines hydrogeological and geochemical expertise to assess the potential for contaminant generation, acid mine drainage (AMD), leachability, and long-term groundwater impact associated with mining and industrial activities. Our associate team includes PhD-level geochemical specialists with experience in advanced geochemical and contaminant fate modelling to support technically robust environmental risk assessments and mitigation planning.

Geochemical assessment and waste classification services may include:

  • Waste characterisation and classification assessments in accordance with GN R. 634/635 and SANS 10234 requirements
  • Soil, rock, tailings, and waste sampling programmes
  • Static and kinetic leach testing
  • Acid-base accounting (ABA) assessments
  • Acid mine drainage (AMD) risk evaluations
  • Geochemical and hydrochemical investigations
  • Geochemical fate and contaminant transport modelling
  • Contaminant source identification and risk screening
  • Seepage and contaminant migration assessments
  • Waste facility and material management support

LWRC integrates geochemical understanding with hydrogeological assessment principles to support technically defensible environmental management, ESG-aligned project planning, groundwater protection, and regulatory compliance.