What Is AMD/ARD Risk Assessment & Geochemical Modelling?
Geochemical modelling uses these data to simulate mineral reactions, acid–base balance, contaminant release, mixing, and water-quality evolution under different mine-life scenarios. The results support PAF–NAF classification, material placement, waste-rock and tailings management, prevention strategies, monitoring, rehabilitation, and closure planning.
Discuss Your AMD/ARD Risk
AMD/ARD CAPABILITIES
Five Capabilities. One Integrated Strategy
Understand the Risk Before It Emerges
Ganeca reviews geological information, mine plans, hydrology, environmental baselines, and historical water-quality data to identify potential AMD/ARD sources, pathways, receptors, and consequences.
The findings are used to establish a conceptual site model, identify data gaps, and design a fit-for-purpose investigation program aligned with operational and closure objectives.
Service coverage:
- Desktop review and data-gap analysis
- Preliminary source–pathway–receptor assessment
- Conceptual AMD/ARD model
- Sampling and testing program design
Build Decisions on Representative Evidence
Ganeca develops representative sampling programs for waste rock, tailings, ore, pit walls, soil, seepage, surface water, and groundwater.
Samples are evaluated through mineralogical analysis, static tests, kinetic tests, and leaching studies.
These investigations determine acid-forming potential, neutralisation capacity, reaction rates, and the release behaviour of metals, sulfate, and other constituents.
Service coverage:
- Field sampling and geological logging
- Mineralogical and elemental analysis
- Static AMD/ARD testing
- Kinetic and leaching tests
Know Which Materials Require Control
Ganeca integrates geological information and laboratory results to classify materials as potentially acid-forming, non-acid-forming, or uncertain.
The classifications can then be incorporated into geochemical domains and mine-material inventories.
This supports selective handling, segregation, placement, blending, encapsulation, and other controls for waste rock, tailings, and low-grade ore.
Service coverage:
- PAF, NAF, and uncertain-material classification
- Geochemical domain development
- Spatial distribution and material inventory
- Material-management recommendations
Predict How Water Quality May Change
Ganeca applies geochemical modelling to evaluate mineral reactions, acid–base behaviour, constituent release, contaminant loading, and water mixing under different mine-life scenarios.
The results help predict future water quality, identify key uncertainties, estimate potential treatment demand, and compare alternative material- and water-management strategies.
Service coverage:
- Water–rock interaction modelling
- Contaminant loading assessment
- Water-quality scenario evaluation
- Operational and closure predictions
AMD/ARD SERVICES
Integrated Geochemical Solutions Across the Mine Life Cycle
PROJECT EXPERIENCE
Identifying AMD Potential Through Static Testing
At a coal-mining operation in Central Kalimantan, Akalab—part of Ganeca Group—was entrusted by PT Suprabari Mapanindo Mineral to conduct static testing for AMD potential. The study provided scientific evidence to support the geochemical classification and management of mine materials.
Static-test results help distinguish potentially acid-forming and non-acid-forming materials, supporting decisions on material segregation, placement, and further investigation. This project demonstrates how laboratory evidence can become the foundation for broader AMD/ARD risk management.
Explore AMD TestingReady to Understand and Manage AMD/ARD Risk?
Talk with our experts to define the right combination of geochemical characterisation, predictive modelling, and mine-site controls for your project.
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Why Partner with Ganeca?
Connect directly with specialists in environmental monitoring, technology, and operations. We help turn compliance challenges and disconnected data into reliable systems, actionable insights, and better environmental performance.
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