Mine water resources
GMT integrates hydrogeology, water management and climate resilience to evaluate groundwater systems, control pore pressures and manage operational water demands, ensuring safe excavation, reliable supply and responsible stewardship across the mining life cycle.
Mine hydreology
Dewatering and depressurisation
GMT develops dewatering and depressurisation strategies that support safe, efficient mine development in both open pit and underground settings. We evaluate hydrogeological conditions, forecast inflows and pore pressures, and design well fields, pumping systems and drainage infrastructure. Numerical groundwater models are used to simulate outcomes and optimise well placement and pumping rates.
Hydrogeological evaluation. Characterisation of aquifers, inflows and pressure regimes influencing excavation stability and mine access.
Dewatering design. Development of well networks, pumping systems and drainage layouts adapted to mining depth and geometry.
Pore pressure monitoring. Implementation of piezometers and sensors to track pressure changes and confirm depressurisation performance.
Water stewardship
Water management
GMT supports mining operations in developing responsible, efficient and compliant water management systems. We prepare site-wide water management plans covering sourcing, recycling, discharge and infrastructure performance. Our work aligns with international water stewardship frameworks and helps operations reduce freshwater demand, optimise reuse and meet regulatory obligations. We assess control measures such as seepage systems, ponds and treatment plants, identifying opportunities to improve reliability, reduce risk and strengthen environmental and community outcomes.
Water planning. Development of water management plans covering supply, recycling, discharge and operational control measures.
Infrastructure assessment. Review of water structures such as ponds, seepage controls and treatment plants for performance and compliance.
Efficiency improvement. Identification of opportunities to reduce consumption, increase reuse and strengthen environmental stewardship.
Hydrogeology studies
Hydrogeology and hydrochemistry
GMT conducts hydrogeological and hydrochemical studies that define groundwater systems, water quality and mine-related water impacts. Work includes conceptual model development, aquifer testing, tracer studies and numerical flow simulations supporting dewatering, water supply and impact assessments. Hydrochemical evaluations predict water quality trends and inform management of seepage, pit lakes and underground water conditions. These studies support permitting, environmental reporting and closure design, ensuring water-related risks are addressed throughout the mine life.
Groundwater characterisation. Definition of aquifer properties, flow paths and recharge relevant to mining and water supply.
Water quality analysis. Assessment of hydrochemical conditions and prediction of geochemical behaviour in mining environments.
Impact evaluation. Evaluation of groundwater and water quality impacts to support permitting, mitigation and closure planning.
Climate resilience
Climate adaptation
GMT helps mining operations plan for changing water availability and climate-driven risks. We analyse climate data and projections to assess future rainfall, evaporation, recharge and extreme weather conditions. Water systems, infrastructure and slopes are evaluated under climate scenarios to identify vulnerabilities and required adaptations. Strategies may include stormwater upgrades, flood control, drought resilience and alternative water sources. This approach strengthens long-term water security and ensures operations remain robust under future climate conditions.
Climate risk assessment. Analysis of projected rainfall, evaporation and hydrological conditions affecting mine water systems.
Infrastructure resilience. Evaluation of water structures and mine facilities under climate scenarios to identify vulnerabilities.
Adaptation strategies. Development of practical measures to improve flood control, drought resilience and long-term water security.
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