AQUA TERRA Consultants
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Eileen C. Regan

Senior Environmental Scientist - Denver, Colorado


  • Watershed Analysis and Planning
  • Environmental Regulatory and Policy Analyst
  • Technical Writing/Editing/Graphic Design
  • Facilitation, Mediation and Stakeholder Involvement


Ms. Regan’s more than twenty-five years of environmental consulting has combined her expertise in water resource management, environmental compliance, and her facilitation and technical writing skills. Ms. Regan recently joined AQUA TERRA Consultants (January 2009) to augment their technical and engineering services with her facilitation/mediation skills to better serve clients’ needs related to water resource planning. She has designed and facilitated numerous and diverse stakeholder meetings related to resource planning and restoration. The combination of her facilitation skills and technical background in environmental science and watershed management has resulted in the successful mediation of complex environmental issues related to: water supply, water quality, resource significance, environmental management and restoration, and implementation of resource and environmental impact statements.

Ms. Regan has extensive experience in developing and implementing natural and cultural resource management plans. She has provided consultation to land managers on stakeholder involvement and specific implementation tasks such as: regulatory responsiveness, wetland delineation, biotic and soil surveys, environmental assessments, erosion control measures, watershed protection, wild-land fire prevention measures, cultural site surveys, restoration projects, and monitoring techniques. Additionally, Ms. Regan has assisted with numerous National Environmental Protection Act (NEPA) environmental assessments and environmental impact statements for a wide-range of projects including resource plans, constructions projects, military range expansions, and water supply projects.

Her clients have included the U.S. Geological Survey, U.S. Fish and Wildlife Service, Department of Defense Strategic Environmental Research and Development Program, U.S. Environmental Protection Agency, Military Installations in all services, Bureau of Land Management, U.S. Department of Energy, U.S. Army Corps of Engineers, State and County Water Planning Boards, and a variety of private and commercial organizations.

Ms. Regan also has extensive experience in project management and development including proposal writing, technical guidance, management and administration, client relations, project review and report writing. She has managed a regional office, successfully started her own company in 2004, and contributed to the award of multi-million dollar proposals.

Professional Data

  • U.S. Institute for Environmental Conflict Resolution Roster Member, 2004
  • Institute for Conflict Analysis and Resolutions, George Mason University, Certified Commercial Mediator, 1999
  • George Washington University, Master of Science, Geochemistry, 1987
  • Montana State University, Bachelor of Science, Earth Science, 1983