The presentation addresses the basic fundamentals of hydrogelogy and groundwater modeling. Topics covered include the formation and migration of contaminant plumes in groundwater, chemical transformation in groundwater, the methods and limitations of groundwater modeling, groundwater remediation, and finally, the key “watchouts” when reviewing work by opposing counsel’s hydrogeologist.
Megan Nishikawa, King & Spalding LLP
Megan Nishikawa is a partner in King & Spalding’s Mass Tort and Toxic Tort and Environmental practices, with a focus on the defense of complex litigation, including toxic tort, environmental, and product liability claims.
John A. Connor, President, GSI Environmental, Inc.
Mr. Connor is President of GSI Environmental Inc. (GSI). He received an M.S. in Civil Engineering from Stanford University and has 37 years of experience in environmental engineering, with specialization in environmental site investigation, human health and ecological risk assessment, corrective action design, and design and permitting of treatment facilities. Mr. Connor is a Registered Professional Engineer, a Licensed Professional Geoscientist, and a Diplomate in the American Academy of Environmental Engineering.
Mr. Connor has authored numerous technical publications regarding natural attenuation, chemical fate and transport modeling, environmental risk assessment, and remediation technologies, and has developed and presented technical training programs on these topics in the U.S., Canada, Latin America, and the Middle East. He has served as an instructor in Groundwater Hydrology at the University of Houston, Chairman of the Houston Local Emergency Planning Committee (LEPC), and a Certified Trainer for the USEPA/ASTM Risk-Based Corrective Action (RBCA) Training Initiative, and was a technical consultant for development of risk-based regulatory programs in approximately 15 states across the U.S., as well as in Canada and Latin America. He is the author of software programs that are among the most widely used internationally for risk-based assessment and remediation of soil and groundwater impacts.
Mr. Connor is an expert in environmental management issues related to the development of oil and gas, including water resource protection, the potential effects of hydraulic fracturing, and applicable remediation technologies for upstream oilfield operations in North America and abroad. He has also conducted environmental research and forensic analyses for a broad range of industries and chemicals, including emerging contaminants such as PFAS and 1,4-dioxane.
David T. Adamson, Ph.D., PSE, Principal Engineer, GSI Environmental, Inc.
Dr. Adamson is a Principal Engineer with GSI Environmental Inc. and has more than 20 years of experience in academic research and as an environmental consultant. He has provided consulting expertise on a broad range of projects including chemical fate and transport, site investigation, remedy screening, risk assessment, remedial design, and litigation matters. He has managed projects that focus on monitored natural attenuation (MNA), source zone characterization, emerging contaminants, matrix diffusion, and the development and testing of innovative treatment technologies. Dr. Adamson’s professional experience includes site investigation, characterization, and remediation, with projects in the U.S., Europe, Latin America, and the Middle East, including the design, implementation, and management of full‐scale remediation projects.
Dr. Adamson has conducted research on a variety of areas related to subsurface contamination. He has authored or co‐authored over 30 published technical articles on topics such as 1,4‐dioxane fate and transport, matrix diffusion of contaminants, source zone characterization and attenuation, in situ bioremediation, remediation performance, improved treatment methods, and he serves as a technical reviewer for multiple environmental journals. He is a coauthor of the DoD‐sponsored guidance document “Frequently‐Asked Questions About MNA” and was one of three co‐instructors for the DoD sponsored “Massive Open Online Course” (MOOC) on MNA. Prior to joining GSI, he worked as a post‐doctoral research associate at Cornell University and Rice University. Dr. Adamson has served an Adjunct Assistant Professor(s) at Rice University in the Civil and Environmental Engineering Department, where he has taught several courses and currently serves as a Lecturer.
Lisa Molofsky, GSI Environmental, Inc.
Ms. Molofsky is a professional geologist (P.G.) with GSI Environmental. She received an M.S. degree in Geochemistry from the University of Arizona and a B.A. degree in Geology from Washington University in St. Louis. Since joining GSI in 2009, she has been involved in research, numerous site investigations, and litigation support projects. Ms. Molofsky has conducted research on the nature, occurrence, and cost of oilfield remediation projects, water resource management issues associated with hydraulic fracturing, and the identification and quantification of sources of variability in groundwater monitoring. In addition, Ms. Molofsky has managed the development and operation of a portable GC/MS used to identify and quantify sources of CVOCs in vapor intrusion investigations in Montana and Utah. She has conducted groundwater and air sampling at chemical manufacturing plants, and commercial properties throughout the United States. Prior to joining GSI, Ms. Molofsky conducted research in the use of stable and radiogenic isotopes as tracers.