Stephanie Johansen is a technical advisor and serves as a team lead for the Predictive Simulation - Sapphire teamĀ in the Environmental Subsurface Science group. She has 15 years of experience leading teams, primarily solving complex environmental challenges for the Department of Energy and Department of Defense in nuclear waste cleanup and chemical weapons demilitarization. Johansen is the regulatory lead for the Hanford Supplemental Low Activity Waste Federally Funded Research and Development Center Panel. She also manages National Environmental Policy Act projects for the Bonneville Power Administration, Nuclear Regulatory Commission, and National Nuclear Security Administration.

Disciplines and Skills

  • Air Permitting
  • Characterization
  • Environmental Monitoring
  • Incineration
  • Permit Applications
  • Permit Compliance
  • Project Management Professional
  • Resource Conservation and Recovery Act
  • Regulatory Compliance
  • Waste Characterization
  • Waste Management


  • MS in chemistry, University of Washington
  • BS in chemistry, Nebraska Wesleyan University

Affiliations and Professional Service

  • Member of American Chemical Society
  • Certified Project Management Professional