Mining
Geo-Logic Associates provides integrated engineering, environmental, hydrogeologic, and water resource expertise for mining projects from feasibility through closure.
Our diverse team of leading professionals combine state-of-the-art engineering and hydrogeology to support mining operations with respect for local communities and ecosystems.
We help clients responsibly advance projects in even the most challenging conditions, leveraging advanced technologies and industry best practices to deliver solutions aligned with their strategic goals.
Market Leader
2,500+
Mining Projects
15+
Countries Served
50+
Mines with heap leach injection projects
20
Successful Mine Site Reclamations
Services
and control
Construction quality assurance
and control
Successful mining infrastructure depends on thorough construction oversight and quality verification. Geo-Logic Associates provides construction quality assurance (CQA) and quality control (QC) services to help ensure facilities are constructed in accordance with design requirements and performance objectives.
- CQA plan preparation
- Construction quality control/assurance (CQA/QC) through daily observations, field and laboratory testing, and documentation
- Structural Fill
- Compacted Soil Liners
- Geomembranes
- Geosynthetic Clay Liners
- Reinforced Concrete
- Services for mine infrastructure facilities, including heap leach pads, tailings storage facilities, waste rock facilities, diversion channels, mills and crushers, water supply structures, and retaining walls
metal recovery
Heap leach injection/enhanced
metal recovery
Geo-Logic Associates is the most experienced injection leaching company currently operating internationally. The company uses heap leach injection/enhanced metal recovery (EMR) to help mining clients access previously unrecoverable gold, silver, and copper, adding millions of dollars to their bottom lines. Its technical expertise includes:
- Using proprietary heap leach injection technology tailored to client- and site-specific needs that involves installing casing, lowering injection tooling into position, and injecting solutioninto the target zones
- Performing geotechnical evaluations, including advanced numerical modeling, prior to and during injections to manage the potential effects of injections on pore water pressures and on the stability of the heap leach pad
- Assistance with enhancing a mine’s bottom line, including with heap leach injection and recovery, heap leach gravity wells and geophysics, heap characterization and stabilization, and alternative leaching technologies
Environmental services / risk assessments
Mining projects require environmental planning and risk management throughout the facility lifecycle. Geo-Logic Associates supports mine operators with environmental assessments, compliance evaluations, monitoring programs, and risk analyses that help meet regulatory requirements and support long-term project objectives.
We have experience performing:
- Seepage and contaminant studies
- Mine closure, decommissioning, and reclamation
- Post-closure monitoring
- Stormwater management plan development
- Runon and runoff controls
- Channel energy dissipation
- Flow structure (weir design)
- Runoff channels and sediment pond design
- Air permits and reporting
- Groundwater monitoring
- Compliance assessment of facility and monitoring programs
- Expert witness and litigation support
- Risk assessments
- Environmental management plans
Facility closure, reclamation, and remediation
Successful closure planning begins long before a mine reaches the end of operations. Geo-Logic Associates helps clients develop closure, reclamation, and long-term stewardship strategies that align with regulatory requirements and intended post-mining land use. Capabilities include:
Capabilities include:
- Closure plan preparation, closure system design, implementation, and monitoring
- Site stabilization for process and non-process components, and evaluation of chemical data for stabilization of mine components
- Cover design and installation, including evapotranspirative (ET) covers, and resistive barrier covers
- Revegetation programs, including germination and plant uptake studies
- Reclamation drainage design, including heap leach pad draindown, evaporative cells, erosion control, riprap, and gabions
Feasibility assessments
Technical and economic feasibility studies provide the foundation for successful mine development. Geo-Logic Associates supports project planning through engineering evaluations, infrastructure studies, cost assessments, and independent technical reviews.
- Developing alternatives throughout the Preliminary Economic Assessment (PEA), Pre-Feasibility Study (PFS), and Feasibility Study (FS) feasibility stages
- Third-party review of prior published feasibility studies
- Developing plans and associated cost evaluations, including issued for permitting plans, issued for construction plans and surface water management plans
- Completing site studies and evaluations, including mine infrastructure, waste dumps, haul roads, conceptual studies, tailings and heap leach site selections, and volumetrics
- Geotechnical and civil engineering considerations and recommendations
Geotechnical, geological, and civil engineering
Geo-Logic Associates provides geotechnical, geological, and civil engineering services that support mine planning, design, operations, and closure. Our engineers evaluate subsurface conditions, geologic hazards, slope stability, and infrastructure performance to help clients make informed decisions in challenging environments. With experience spanning diverse geologic settings and climatic conditions worldwide, we deliver practical engineering solutions that support safe, efficient, and sustainable mining operations.
- Geotechnical investigations
- Planning, managing, logging, field testing and sampling rotary, hollow stem auger and sonic drilling programs
- Plan, manage and log Seismic Cone Penetration Test (SCPT) sounding
- Integration of surface and subsurface geophysics
- Laboratory testing program design
- Pit Slope Stability
- Cell Mapping
- Core logging
- Televiewer Logging
- Structural interpretation; steronet and statistics
- Kinematic and Limit Equilibrium Analyses
- Development of Site Models
- Incorporation of subsurface geotechnical data into a 3-dimensional model (Leapfrog) for incorporation into design analyses
- Slope Stability; natural slopes and constructed embankments
- Surface water hydrology; runon and run off controls
Earthquake engineering
Geo-Logic Associates is a recognized expert in earthquake engineering, with expertise applicable to facilities such as heap leach pads, tailings dams, earth-fill and rock-fill dams, and appurtenant structures. The company offers the following services:
- Development of design basis for facilities in areas of high seismicity
- Probabilistic and deterministic seismic hazard analyses
- Development of design ground motions
- Specialty (dynamic) site characterization
- Specialty laboratory testing and interpretation of the results of thereof
- Soil liquefaction evaluation (static and seismic)
- Evaluation of soil liquefaction impacts
- Site response analyses (1D, 2D, and 3D; total and effective-stress)
- Seismic stability and seismic deformation analyses
- Development of remedial measures against soil liquefaction
- Permitting
Heap leach pads, process solution ponds, tailings storage facilities
Heap leach facilities, process solution ponds, and tailings storage facilities require specialized engineering expertise to support operational performance, environmental protection, and regulatory compliance. Geo-Logic Associates provides planning, design, evaluation, and optimization services for mining facilities worldwide, helping clients manage risk and maximize long-term facility performance.
Our expertise includes:
- Heap leach pad design and engineering through geologic and geohydrologic investigations, construction material source identification, seismic and geo-hazards studies, permitting assistance, report preparation, issued for construction documents and CQA
- Single- and double-lined process solution ponds design for heap leaching applications and other mine process solutions that require containment
- Tailings storage facilities evaluation, design, and optimization including filtered and lithium extraction tailings materials
- Tailings site selection, material testing, risk assessment, geotechnical foundation drilling and failure modes and effects analysis
Hydrology
Understanding groundwater systems is critical to mine planning, facility design, permitting, and environmental performance. Geo-Logic Associates provides hydrogeologic investigations and modeling services that help clients characterize groundwater systems and evaluate site-specific conditions.
- Hydrogeologic characterization in support of facility siting/design
- Seepage infiltration investigations and analyses
- Geologic mapping
- Leapfrog model development
- Numerical flow and transport modeling
- Field investigation (e.g., drilling program) design and completion
Mine water management
Effective water management is essential to maintaining safe, efficient, and compliant mining operations. Geo-Logic Associates develops practical solutions for mine water supply, dewatering, water balance management, and long-term operational planning.
Expertise includes:
- Mine water supply, water balances, and management
- Mine dewatering and depressurization
- Well design
- Geochemical and water chemistry characterization and modeling
- Tailings management
Planning and permitting
Successful mining projects depend on effective permitting strategies and coordination with regulatory agencies throughout the project lifecycle. Geo-Logic Associates helps clients navigate state, federal, Tribal, and international permitting requirements, supporting project development from early planning through operations, closure, and reclamation. Our team works closely with clients and regulators to develop practical permitting pathways that support project schedules while maintaining compliance.
Services include:
- Mine planning and permitting strategies
- New and amended Plans of Operation
- Water quality and environmental permitting, including Water Pollution Control Permits in Nevada, and Aquifer Protection Permits in Arizona
- Reclamation plans and closure permitting
- Stormwater permitting and compliance programs
- Federal, state, Tribal, and agency coordination
SMARA compliance
Geo-Logic Associates provides full-scope services to support compliance with the Surface Mining and Reclamation Act (SMARA) throughout the State of California. We bring specialized experience assisting lead agencies with SMARA implementation, review, and oversight.
Our expertise includes:
- Mine Plans, Conditional Use Permits, Development Agreements, and Reclamation Plans
- Annual SMARA Mine Site Inspection documentation (Inspection Report [MRRC-1] and Notice of Completion of Inspection [NOCI-1])
- Annual review of Financial Assurance Cost Estimates (FACE) and Financial Assurance Mechanism (FAM)
- Annual SMARA Report preparation and submittal to Division of Mine Reclamation (DMR) via Mines Online Document System (MODS)
- State reporting and compliance tracking and submittal support
- Assistance with enforcement activities and notices to mine operators
Construction quality assurance
and control
Successful mining infrastructure depends on thorough construction oversight and quality verification. Geo-Logic Associates provides construction quality assurance (CQA) and quality control (QC) services to help ensure facilities are constructed in accordance with design requirements and performance objectives.
- CQA plan preparation
- Construction quality control/assurance (CQA/QC) through daily observations, field and laboratory testing, and documentation
- Structural Fill
- Compacted Soil Liners
- Geomembranes
- Geosynthetic Clay Liners
- Reinforced Concrete
- Services for mine infrastructure facilities, including heap leach pads, tailings storage facilities, waste rock facilities, diversion channels, mills and crushers, water supply structures, and retaining walls
Heap leach injection/enhanced
metal recovery
Geo-Logic Associates is the most experienced injection leaching company currently operating internationally. The company uses heap leach injection/enhanced metal recovery (EMR) to help mining clients access previously unrecoverable gold, silver, and copper, adding millions of dollars to their bottom lines. Its technical expertise includes:
- Using proprietary heap leach injection technology tailored to client- and site-specific needs that involves installing casing, lowering injection tooling into position, and injecting solutioninto the target zones
- Performing geotechnical evaluations, including advanced numerical modeling, prior to and during injections to manage the potential effects of injections on pore water pressures and on the stability of the heap leach pad
- Assistance with enhancing a mine’s bottom line, including with heap leach injection and recovery, heap leach gravity wells and geophysics, heap characterization and stabilization, and alternative leaching technologies
Environmental services / risk assessments
Mining projects require environmental planning and risk management throughout the facility lifecycle. Geo-Logic Associates supports mine operators with environmental assessments, compliance evaluations, monitoring programs, and risk analyses that help meet regulatory requirements and support long-term project objectives.
We have experience performing:
- Seepage and contaminant studies
- Mine closure, decommissioning, and reclamation
- Post-closure monitoring
- Stormwater management plan development
- Runon and runoff controls
- Channel energy dissipation
- Flow structure (weir design)
- Runoff channels and sediment pond design
- Air permits and reporting
- Groundwater monitoring
- Compliance assessment of facility and monitoring programs
- Expert witness and litigation support
- Risk assessments
- Environmental management plans
Facility closure, reclamation, and remediation
Successful closure planning begins long before a mine reaches the end of operations. Geo-Logic Associates helps clients develop closure, reclamation, and long-term stewardship strategies that align with regulatory requirements and intended post-mining land use. Capabilities include:
Capabilities include:
- Closure plan preparation, closure system design, implementation, and monitoring
- Site stabilization for process and non-process components, and evaluation of chemical data for stabilization of mine components
- Cover design and installation, including evapotranspirative (ET) covers, and resistive barrier covers
- Revegetation programs, including germination and plant uptake studies
- Reclamation drainage design, including heap leach pad draindown, evaporative cells, erosion control, riprap, and gabions
Feasibility assessments
Technical and economic feasibility studies provide the foundation for successful mine development. Geo-Logic Associates supports project planning through engineering evaluations, infrastructure studies, cost assessments, and independent technical reviews.
- Developing alternatives throughout the Preliminary Economic Assessment (PEA), Pre-Feasibility Study (PFS), and Feasibility Study (FS) feasibility stages
- Third-party review of prior published feasibility studies
- Developing plans and associated cost evaluations, including issued for permitting plans, issued for construction plans and surface water management plans
- Completing site studies and evaluations, including mine infrastructure, waste dumps, haul roads, conceptual studies, tailings and heap leach site selections, and volumetrics
- Geotechnical and civil engineering considerations and recommendations
Geotechnical, geological, and civil engineering
Geo-Logic Associates provides geotechnical, geological, and civil engineering services that support mine planning, design, operations, and closure. Our engineers evaluate subsurface conditions, geologic hazards, slope stability, and infrastructure performance to help clients make informed decisions in challenging environments. With experience spanning diverse geologic settings and climatic conditions worldwide, we deliver practical engineering solutions that support safe, efficient, and sustainable mining operations.
- Geotechnical investigations
- Planning, managing, logging, field testing and sampling rotary, hollow stem auger and sonic drilling programs
- Plan, manage and log Seismic Cone Penetration Test (SCPT) sounding
- Integration of surface and subsurface geophysics
- Laboratory testing program design
- Pit Slope Stability
- Cell Mapping
- Core logging
- Televiewer Logging
- Structural interpretation; steronet and statistics
- Kinematic and Limit Equilibrium Analyses
- Development of Site Models
- Incorporation of subsurface geotechnical data into a 3-dimensional model (Leapfrog) for incorporation into design analyses
- Slope Stability; natural slopes and constructed embankments
- Surface water hydrology; runon and run off controls
Earthquake engineering
Geo-Logic Associates is a recognized expert in earthquake engineering, with expertise applicable to facilities such as heap leach pads, tailings dams, earth-fill and rock-fill dams, and appurtenant structures. The company offers the following services:
- Development of design basis for facilities in areas of high seismicity
- Probabilistic and deterministic seismic hazard analyses
- Development of design ground motions
- Specialty (dynamic) site characterization
- Specialty laboratory testing and interpretation of the results of thereof
- Soil liquefaction evaluation (static and seismic)
- Evaluation of soil liquefaction impacts
- Site response analyses (1D, 2D, and 3D; total and effective-stress)
- Seismic stability and seismic deformation analyses
- Development of remedial measures against soil liquefaction
- Permitting
Heap leach pads, process solution ponds, tailings storage facilities
Heap leach facilities, process solution ponds, and tailings storage facilities require specialized engineering expertise to support operational performance, environmental protection, and regulatory compliance. Geo-Logic Associates provides planning, design, evaluation, and optimization services for mining facilities worldwide, helping clients manage risk and maximize long-term facility performance.
Our expertise includes:
- Heap leach pad design and engineering through geologic and geohydrologic investigations, construction material source identification, seismic and geo-hazards studies, permitting assistance, report preparation, issued for construction documents and CQA
- Single- and double-lined process solution ponds design for heap leaching applications and other mine process solutions that require containment
- Tailings storage facilities evaluation, design, and optimization including filtered and lithium extraction tailings materials
- Tailings site selection, material testing, risk assessment, geotechnical foundation drilling and failure modes and effects analysis
Hydrology
Understanding groundwater systems is critical to mine planning, facility design, permitting, and environmental performance. Geo-Logic Associates provides hydrogeologic investigations and modeling services that help clients characterize groundwater systems and evaluate site-specific conditions.
- Hydrogeologic characterization in support of facility siting/design
- Seepage infiltration investigations and analyses
- Geologic mapping
- Leapfrog model development
- Numerical flow and transport modeling
- Field investigation (e.g., drilling program) design and completion
Mine water management
Effective water management is essential to maintaining safe, efficient, and compliant mining operations. Geo-Logic Associates develops practical solutions for mine water supply, dewatering, water balance management, and long-term operational planning.
Expertise includes:
- Mine water supply, water balances, and management
- Mine dewatering and depressurization
- Well design
- Geochemical and water chemistry characterization and modeling
- Tailings management
Planning and permitting
Successful mining projects depend on effective permitting strategies and coordination with regulatory agencies throughout the project lifecycle. Geo-Logic Associates helps clients navigate state, federal, Tribal, and international permitting requirements, supporting project development from early planning through operations, closure, and reclamation. Our team works closely with clients and regulators to develop practical permitting pathways that support project schedules while maintaining compliance.
Services include:
- Mine planning and permitting strategies
- New and amended Plans of Operation
- Water quality and environmental permitting, including Water Pollution Control Permits in Nevada, and Aquifer Protection Permits in Arizona
- Reclamation plans and closure permitting
- Stormwater permitting and compliance programs
- Federal, state, Tribal, and agency coordination
SMARA compliance
Geo-Logic Associates provides full-scope services to support compliance with the Surface Mining and Reclamation Act (SMARA) throughout the State of California. We bring specialized experience assisting lead agencies with SMARA implementation, review, and oversight.
Our expertise includes:
- Mine Plans, Conditional Use Permits, Development Agreements, and Reclamation Plans
- Annual SMARA Mine Site Inspection documentation (Inspection Report [MRRC-1] and Notice of Completion of Inspection [NOCI-1])
- Annual review of Financial Assurance Cost Estimates (FACE) and Financial Assurance Mechanism (FAM)
- Annual SMARA Report preparation and submittal to Division of Mine Reclamation (DMR) via Mines Online Document System (MODS)
- State reporting and compliance tracking and submittal support
- Assistance with enforcement activities and notices to mine operators
