Thomas Engels, Ph.D.

Tom has more than 25 years of experience in environmental consulting, specializing in CEQA, NEPA, 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 projects, including CEQA and/or NEPA documents, environmental permitting, integrated natural resources management plans, and feasibility studies. Tom has taught courses on CEQA, NEPA, Endangered Species Act and Clean Water Act compliance, and conflicts between environmental law and science for clients and universities. He is an adjunct instructor at the University of San Francisco and teaches a graduate-level course in CEQA/NEPA compliance.

Kenneth Schwarz, Ph.D

Ken is the founding principal of Horizon Water and Environment. He is a recognized expert in the fields of geomorphology, hydrology, and watershed management. For over 26 years, he has directed complex projects throughout California involving erosion and sediment management, flood and stormwater management, stream maintenance and capital programs, land use planning, water rights, habitat conservation, and ecosystem restoration. Ken is an expert in environmental regulations and specializes in using his technical background to develop successful permitting strategies for the USACE, SWRCB, RWQCBs, CDFW, USFWS, and NMFS, as well as local county and municipal approvals. Ken has directed many CEQA investigations for water resource projects, including developing many IS/MND and EIRs for river management, flood maintenance, water supply infrastructure, and ecologic restoration projects. Ken conducts hydrologic and geomorphic analyses and produces watershed and stream management plans, hydrologic reports, stream assessments, sediment and erosion control evaluations, water rights petitions, restoration designs, and conservation plans. Ken’s watershed and stream projects balance the needs of local government planners with regulatory requirements and the interests of watershed stakeholders.  Throughout every project, Ken maintains a strong focus on project cost and schedule. Ken has served as an expert witness for court proceedings and state-level hearings. He is an adjunct professor at the University of San Francisco, where he teaches a graduate course in hydrology and geomorphology.