Impact Assessments

Hanson’s scientists and engineers can help you through the myriad environmental regulations and permits required for your project. We understand the environmental process and can work with you to comply with your project’s local, state and federal environmental requirements.

Our services include: 

  • ecological services
    • aquatic surveys for invertebrates, fish and mussels
    • faunistic surveys of mammals, birds, reptiles and amphibians
    • floristic surveys of herbaceous, woody and aquatic vegetation
    • habitat evaluation procedures (HEP) of aquatic and terrestrial environments
    • tree surveys
    • wetland delineation, mitigation, planning, design and monitoring
  • lake feasibility studies
    • diagnostic identification
    • sediment testing
    • water-quality analysis
    • nutrient and hydrologic budget preparation
  • lake and stream management services
    • dredging
    • shoreline erosion control
    • sediment stabilization
    • fisheries management
    • macrophyte control
  • National Environmental Policy Act (NEPA)-related services
    • agency coordination
    • air quality analysis
    • alternatives analysis
    • threatened and endangered species surveys
    • environmental justice issues
    • national resources studies
    • noise modeling and abatement
    • social-impact and land-use assessments
    • Environmental Impact Statements (EIS) & Environmental Assessments (EA)
  • related permitting services


Our environmental capabilities include hands-on support for:

  • transportation
  • buildings and facilities
  • government and defense
    • federal, state and local governments
  • energy and industry
    • waste management
  • water resources and environment
    • stormwater
    • wetlands and environment
    • wastewater
    • levees, dams and flood control
  • emergency and safety