“…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.”

“…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.”

“…Andrew is an expert in hydrogeology and transport modeling applied to conceptual site modeling, site characterization, and remediation.”

“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”

“…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.”

"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."

"…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."

"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."

"His broad experience and knowledge in the field of groundwater is well-regarded and impressive."