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  • Contamination Solutions

    Groundwater Pollution

    Identifying sources, assessing risks, and developing remediation strategies.

  • Contaminant Hydro Expert

    30+ Years Experience

    Bringing clarity to complex hydrogeologic data and contamination challenges.

  • Forensic & Expert Witness

    Science-Backed Litigation

    Combining technical precision, nuanced insight, and effective presentations for legal success.

  • GroundwaterU.org Resource

    Education Leadership

    Publications, videos, and a curated resource bridging the gap between experts and the public.

Andrew Cohen, PhD, PH

Meet The Expert

Andrew J.B. Cohen, PhD, PH is a Contaminant Hydrogeologist with over 30 years of experience in consulting, teaching, and research focused on the characterization and remediation of contaminated sites. Clients include Fortune 500 companies, environmental attorneys, and government and non-profit organizations. Skilled in dissecting complex data sets to establish causation, enhanced data interpretation, and developing conceptual models essential for informed decision-making. Demonstrated proficiency in presenting clear, persuasive findings to stakeholders.

He is Founder of GroundwaterU.org and a co-author of a foundational book, which has been downloaded 16,000+ times globally.

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How I Can Help

Services

Forensic Hydrogeology

Delivering science-backed analyses to determine contamination sources and establish causation.

Legal Support Services

Expert forensic analyses, detailed reports, and testimony support to fortify litigation strategies.

Site Assessment & Characterization

Comprehensive evaluations—from hydrogeologic assessments to conceptual site model development.

CONTAMINANT FATE, TRANSPORT, AND REMEDIATION

Analysis of contaminant behavior for risk assessment, remedial design, and natural attenuation assessments.

DATA ANALYSIS AND TECHNICAL TOOLS

Advanced analytical services and custom software to integrate and visualize complex environmental data.

TECHNICAL COMMUNICATION AND EDUCATION

Clear, impactful communication of technical concepts through illustrations, animations, and training sessions.

What Clients Are Saying

Testimonials

“…As Andrew continued to educate the Science Advisory Board, I was always impressed by his outstanding analytical and communication skills. He is sincere and very enjoyable to work with…I recommend him for developing sustainable approaches and solutions in the site remediation process.”
Lisa Axe, PhD.Client Science Advisory Board Member, Professor New Jersey Institute of Technology, Department of Chemical Engineering
“…We needed someone to communicate highly complex concepts and data to non-scientists. We were extremely impressed with his work ethic and results. Andrew is one of those reliable consultants you use repeatedly throughout your career.”
Ed UrquhartCEO, Vernay Laboratories, Ohio
“…Andrew is an expert in hydrogeology and transport modeling applied to conceptual site modeling, site characterization, and remediation.”
Daekyoo Hwang, Ph.D., PEPrincipal Geoenvironmental Engineer at Sedsol Engineering
“Dr. Cohen was an excellent collaborator who assisted in our mission to make decisions regarding sustainable water management in remote regions of Morocco. His analysis integrated all types of data…and his recommendations weighed probabilities, economic factors, and prospective returns. He is immediately responsive, and his follow-up is entirely reliable”
Yossef Ben-Meir, Ph.D.President of the High Atlas Foundation, Morocco
“…Whether it’s PFAS or NAPL, Andrew’s grasp and deep understanding of the subsurface behavior of these contaminants is translated into pictures with visually appealing clarity that almost anyone can understand.”
Guy PatrickGeoEnviroPro Environmental Sciences Training, Vancouver, British Columbia
"Andrew's analyses were crucial to my client's arguments regarding their relative share of the cost to implement site remediation. This ultimately led to what I deemed a successful settlement for our client."
Wray BlattnerThompson Hine, LLP
"…He developed unique approaches for data analysis used in making strategic decisions. His work is always thorough and clearly presented, and his participation has enabled us to proceed with confidence on a wide range of technical projects."
Remediation Project DirectorFortune 100 Company
"After decades of involvement in groundwater science and engineering both in the U.S. and internationally, I can confidently say that Andrew is among the top 1% of Teacher-Scholars and practitioners in the profession."
Bob Cleary, Ph.D.Princeton Groundwater, Inc.
"His broad experience and knowledge in the field of groundwater is well-regarded and impressive."
David Kreamer, Ph.D.Past President, International Association of Hydrogeologists; Professor Emeritus University of Nevada, Las Vegas; Co-author: Applied Hydrogeology, and Contaminant Hydrogeology
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Ready to Solve Your Groundwater Challenges?

Let’s Work Together

With decades of experience in groundwater science, I’m here to provide sustainable, practical solutions tailored to your needs. Whether you need consulting, research, or education, I can help you make informed decisions for the future of your groundwater resources.

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