MWH

Environmental Planning, Permitting and Compliance

• Sustainability planning and communication
• Land use, demographic and socioeconomics assessments
• Natural resource baseline studies (biological/water/air/soil/geology)
• Environmental assessments, environmental impact statements, and environmental and social impact assessments
• Environmental permitting (water/air/waste)
• Environmental plan preparation (water/air/waste)
• Closure plans
• Compliance and due diligence audits
• Engineered risk assessments
• Environmental monitoring and reporting
• Environmental management systems (ISO 14001 compliant)
• Information and database development/management
• Regulatory negotiations, expert testimony, stakeholder involvement

• Ecological baseline and impact studies
• Ecological monitoring
• Threatened and endangered species assessments and mitigation
• Natural & biological resource management plans
• Revegetation planning
• Agronomic evaluation and site characterization
• Land and resource management
• Wetlands delineation, management and mitigation
• Vegetation and hydrologic interactions
• Terrestrial and aquatic resources
• Fisheries and fi sh passages
• Ecological toxicology and risk assessments
• Ecological restoration
• Natural resource damage assessment support

• Operations and mine plans
• Tailings storage facilities, dams and ancillary structures
• Slope depressurization and dewatering measures
• Leach pads
• Stockpiles
• Ponds and impoundments
• Liners and covers
• Erosion and sediment control
• Seismic evaluations
• Tunnels, channels and diversion/conveyance systems
• Buildings and mechanical systems
• Electrical engineering, instruments & controls and SCADA systems
• Roads, bridges and utilities

Mine Water Supply, Management and Treatment

• Water resource evaluation, development, storage and supply
• Watershed/aquifer catchment-based management and restoration
• Dewatering, impact prediction and management
• Managed aquifer recharge
• Well fi eld design
• Water balance studies
• Hydraulic/hydrologic modeling and structures
• Stormwater management
• Water diversion and fl ood control
• Water and wastewater active/passive treatment
• Pumping, storage and pipeline transmission systems

• Groundwater and surface water characterization
• Hydrogeologic evaluations and groundwater modeling
• Dewatering evaluations
• Water quality monitoring and evaluations
• Fate and transport modeling and studies
• Geochemical modeling
• Acid rock drainage (ARD) prediction, monitoring and management
• Leachability studies
• Pit lake assessments

• MWH can bring large scale projects to successful completion with effective cost, schedule, and quality control systems that meet our client’s demanding requirements and stand-up to regulatory scrutiny.
  Mine waste management and containment systems
• Alternative disposal technologies
• Waste minimization and source reduction
• Reclamation and closure plans
• Site evaluations
• Feasibility and treatability studies
• Reclamation and landfi ll engineering
• Cover and liner systems
• Resource recovery
• Demolition and decommissioning
• Construction quality assurance and reporting
• Post-closure planning and redevelopment
• Site monitoring and reporting

• Hydropower planning
• Hydropower plants
• Dams and reservoirs
• Inlet/outlet structures, turbines and penstocks
• Dam safety services
• Dam rehabilitation
• Potential failure modes analysis
• High voltage switchyards and distribution management
• Federal Energy Regulatory Commission (FERC) licensing

• Surface and subsurface site investigations
• Human health and ecological risk assessments
• Remedial alternatives analysis
• Risk-based and natural attenuation approaches
• In-situ and ex-situ treatment systems
• Geochemical fi xation
• Passive treatment systems
• Groundwater, soil and sediment remediation
• Remediation system design and construction
• Operation & maintenance and monitoring