What's the Problem?

• How We Mine
• Environmental Impacts of Mining
  • Acid Mine Drainage Formation
  • Erosion & Sedimentation
  • Cyanide & Other Chemical Releases
  • Fugative Dust Emissions
  • Habitat Modification
  • Suface & Groundwater
• What Can We Do about the Problem?

Sampling Methods

• Solids Sampling
  • Tailings
  • Waste Removal & Disposal
    • Waste Treatment
    • Waste Rock
  • Soil
• Groundwater
• Surface Water
  • Surface Water Chemistry
  • Flow Measurement
• Vegetation
• Fish
• Invertebrates

Data Quality Objectives

Technologies for Prediction

• Laboratory Methods
  • Static Geochemical Testing
    • Acid-Base Accounting (ABA)
    • NAG Method
      
  • Kinetic Geochemical Testing
  • Humidity Cells
  • Leaching Column
    
• Modeling

Health & Safety

Geographic Information Systems

Regulatory Compliance

• What Laws Govern Mine Site Clean-up?
• Risk Assessment

Analytical Methods

• Chemical Analyses
  • Water
    • Electrical Conductivity
    • pH
    • Dissolved Oxygen
    • Sulfate
    • Acidity
    • Alkalinity
    • Total Dissolved Solids
    • Total Suspended Solids
    • Metals
    • Redox
      
  • Solids
    • Metals
    • pH
    • Carbonate
    • Macronutrients
    • Electrical Conductivity
    • Organic Contaminants
    • Organic Matter
    • Sodium Absorption Ratio
• Physical Properties
  • Soil Texture
  • Water
  • Rock
  • Bulk Density
  • Porosity
  • Hydraulic Conductivity
  • Soil Strength
    • Sudden Failure
    • Settlement (Gradual Compression)

Technologies For Project Construction

• Consolidation & Containment
  • Dry Cover
  • Water Covers (Caps)
  • Liners & Leachate Collection Systems
    
• Topographic Reconstruction
• Stream Channel Reconstruction
• Drainage Basin Reconstruction
• Hillslope Reconstruction
  
• Water Treatment
• Groundwater
• Surface Water
  • Active Treatment Systems
  • Passive Treatment Systems
    • Constructed Wetlands
    • Anoxic Limestone Drains
      
• Waste Treatment
• In-Situ
  • Chemical Amendments
  • Phytoremediation
    
• Ex-Situ
  • Fixation/Stabilization
  • Soil Washing
  • Acid Extraction
  • Alkaline Leaching
  • Reprocessing
    
• Streambed & Bank Erosion Control
• Hillslope Erosion Control
• Revegetation
• Planting
• Mulching
• Noxious Weed Control
• Riparian
• Specialty Tasks
• Lime Application
• Chemical Amendments
• Plant Nutrient Addition (Fertilization)
• Organic Amendments
• Tillage
• Seeding
  
• Water Controls
• Groundwater Controls
• Infiltration Controls
• Surface Water Controls
• Adit Plugs
  
• Site Preparation
  • Hydrologic Controls
    • Diversion Technologies
    • Sedimentation Basins/Ponds
    • Dewatering
    • Sediment Traps and Barriers
    • Silt Fences
    • Straw Bale Dike
• Soil Salvage
• Surveying
  • Global Positioning Systems (GPS)
  • Remote Sensing
    
• Institutional Control (IC) Plan

Site Assessment

• Aerial Photographs & Maps
• Collection of Site Information

Technologies for Monitoring & Assessment

• Contamination Removal Success
• Vegetation Establishment
• Water Quality