Tom Engels

Tom Engels

Adjunct Professor

Part-Time Faculty


Tom Engels received his PhD in biological sciences from the University of Texas at Austin, with an emphasis in ecology and conservation biology. Tom is a principal at Horizon Water and Environment, an environmental consulting firm headquartered in Oakland, California. He has over 28 years of experience in environmental consulting, specializing in California Environmental Quality Act (CEQA), National Environmental Policy Act (NEPA), and Clean Water Act and Endangered Species Act compliance; expert witness testimony and CEQA/NEPA case law; energy and water resources planning; and project management.

Tom regularly manages large-scale CEQA and/or NEPA environmental impact assessments in California. He has provided environmental consulting services to numerous clients, including the California Public Utilities Commission, California Department of Water Resources, San Francisco International Airport, National Aeronautics and Space Administration, California Department of General Services, Santa Clara Valley Water District, U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service, Microsoft Corporation, and Aluminum Company of America (ALCOA).


  • PhD, Biological Sciences, University of Texas at Austin, Texas
  • BA, Liberal Arts, University of Texas at Austin, Texas