Meet Our Team
United by a desire to provide the highest value to our clients.
Jeffrey Rosen - CEO
Jeffrey S. Rosen is the CEO of Corona Environmental Consulting, LLC. He is a Senior Scientist and Statistician with over thirty years of experience in conducting environmental research. His career has focused on processing data into useful information to support effective environmental management.
Jeff has worked on a wide range of topics including regulation development, on-line monitoring, homeland security and information system development, and helped support legal teams in complex environmental litigation. In doing this work, Jeff has led multi-disciplinary teams to capture, quality control and analyze data, and designed and performed complex statistical analyses.
Jeff holds M.S. degrees in oceanography and statistics from the University of Rhode Island, and a B.S. in biology from the University at Albany, SUNY.
Chad Seidel - President
Dr. Chad Seidel is a recognized drinking water quality and treatment leader, and a Registered Professional Engineer in Colorado. His years of consulting experience in the drinking water community have focused on surface water treatment, including microbial pathogens and disinfection byproduct (DBP) minimization, groundwater and inorganic contaminant treatment, and regulatory and policy research.
Chad has a diverse range of experience providing large and small drinking water utilities with process and design engineering services, from optimization of existing conventional treatment processes to the application of advanced treatment processes for controlling emerging contaminants.
Chad holds a Ph.D. and M.S. in civil and environmental engineering from the University of Colorado at Boulder and a B.S. in environmental engineering from Montana Tech.
Ayhan Ergul - Vice President
Ayhan Ergul has supported many drinking water utilities and government agencies in the areas of software development, data management, information systems, GIS and metadata management. He has developed decision support tools and provided technical assistance for drinking water regulation, environmental decision making and environmental litigation.
Ayhan specializes in the development of tools, processes, and quality assurance procedures for high accuracy and robust processing of data.
Ayhan holds a M.Sc. in computer engineering from Orta Doğu Teknik Üniversitesi and a M.Sc. in computer science from Northeastern University.
Jennifer Aieta - Director of Engineering
Jennifer Aieta has over 30 years of experience in environmental and civil engineering, having served as project manager and project engineer in many multi-discipline projects. Ms. Aieta was named the National Society of Professional Engineers Colorado 2014 Woman Engineer of the Year. Her project experience and technical expertise include ground and surface water treatment plant design, desalination plant design, water treatment feasibility studies, equipment pre-procurement, chemical storage and feed systems, pilot water treatment system design and operation, cost development and validation, civil and site design, and bid procurement preparation. Ms. Aieta is a registered Professional Engineer in California and Colorado.
Science and Engineering Team
Senior Water Quality
& Treatment Engineer
Environmental Scientist and Engineer
GIS and IT Team
GIS Project Manager
Business Systems and IT Manager
GIS and Metadata Consultant
Water Sector Economists
Senior Water Resources Economist
Policy and Communication Strategist
Director of Water Economics
Business Development and Administrative Team
Executive Administrative Assistant