Groundwater Flow and Transport Modeling
Overland Product Spill Modeling
Air Dispersion Modeling
Air Quality Analysis
Site Investigation and Remediation
Engineering Design, Construction, and Oversight
PhD, Environmental Engineering, University of Delaware, 2008
MS, Environmental Engineering, Sharif University of Technology, Tehran, Iran, 2003
BSc, Civil Engineering, Shiraz University, Shiraz, Iran, 2001
Dr. SeyedAbbasi is a Technical Director with over fifteen years of experience in soil and groundwater investigations, remediation, environmental fate and transport modeling, academic research, and environmental consulting. He is a licensed Professional Engineer in Illinois and Texas. He has experience in developing, troubleshooting, and reviewing flow and transport models and has worked on modeling projects spanning a wide range of spatial and temporal scales, complex geological settings, and challenging numerical conditions. His modeling expertise also includes multi-phase, multi‐component modeling capabilities by using widely tested and successfully applied programs for reactive transport simulations. Dr. SeyedAbbasi has experience in environmental litigation support, including roles as consulting the testifying experts for numerous cases involving forensic analysis of environmental impacts; natural resource damage assessment; remediation of soil and groundwater; and creating and reviewing environmental fate and transport, spill and risk models, and allocation of liability for projects in the US, Latin America, the Middle East, and Central Asia. He has been the Co-Principal Investigator and participant for numerous environmental research and development projects for the Department of Energy, American Petroleum Institute (API), Interstate Technology and Regulatory Council (ITRC), and Department of Defense (DoD), and has experience working with research and development teams comprised of mixed academic, industrial, and consulting members. He has conducted and published research on a variety of areas related to subsurface contamination, site investigation and characterization, remediation technologies, spill modeling, matrix diffusion, and multiphase fate and transport in unsaturated and saturated subsurface media.
Litigation Support, PFAS Fate and Transport Modeling Utilizing MODFLOW/MT3DMS in Minnesota. Conducted flow, particle tracking and solute fate and transport modeling for large multi-layer model with an unstructured grid (USG) discretization. Evaluated the impact of non-point source of PFAS entering the subsurface from dumping areas.
Litigation Support, 1,4-Dioxane Fate and Transport Modeling Utilizing MODFLOW/MT3DMS in Suffolk County, New York. Conducted flow, particle tracking, and solute fate and transport modeling for large multi-layer model. Evaluated the impact of non-point source of 1,4-Dioxane entering the subsurface from septic tank and cesspool systems.
Litigation Support, Group of Retail Gas Stations Sites, California. Provided technical support on various environmental issues associated with the litigation project, including chemicals fate and transport modeling of MTBE with MODFLOW/MT3DMS, chemical fingerprinting, and model evaluation. Analyzed groundwater, soil vapor, and indoor air data to identify potential impacts from saturated zone sources to indoor air. Analyzed the plaintiff’s groundwater flow and contaminant transport model to support legal team in defense of claims of groundwater contamination from MTBE.
Litigation Support, Louisiana. Provided technical support to on various environmental issues associated with the litigation project, including detailed hydrogeological cross sections, local and regional hydrogeology, and contaminant fate and transport. Conducted saline water intrusion modeling to evaluate the alleged impact of pumping rates from client’s oil production wells compared to nearby wells on saline water intrusion into plaintiff agricultural irrigation wells. Evaluated the model created by the plaintiff and ran multiple additional scenarios.
Adamson, D.T., McHugh, T.E., Rysz, M.W., Landazuri, R., Seyedabbasi, M.A., Hass, P.E., Newell, C.J., On-Site Vapor-Phase analysis as a Novel Approach for Monitoring Groundwater Wells. Groundwater Monitoring & Remediation Journal. Volume 34, Issue 2, 42–59, DOI: 10.1111/gwmr.12048.
Seyedabbasi M.A., Kulkarni P.R., McDade J.M., Newell C.J., Gandhi D., Gallinatti J.D., Cocianni V., Ferguson D.J. (2013) Matrix Diffusion Modeling Applied to Long-term Pump and Treat Data: 2. Results from Three Sites, Remediation Journal, 23 (2), 93–109, DOI: 10.1002/rem.21350.
McDade J.M., Kulkarni P.R., Seyedabbasi M.A., Newell C.J., Gandhi D., Gallinatti J.D., Cocianni V., Ferguson D.J. (2013) Matrix Diffusion Modeling Applied to Long-term Pump and Treat Data: 1. Method Development, Remediation Journal, 23 (2), 71–91, DOI: 10.1002/rem.21349.
Seyedabbasi M.A., Newell C.J., Adamson D.T., Sale T.C. (2012) Relative Contribution of DNAPL Dissolution and Matrix Diffusion to the Long-Term Persistence of Chlorinated Solvent Source Zones, Journal of Contaminant Hydrology, pp. 69-81, DOI: 10.1016/j.jconhyd.2012.03.010.
Farthing, M.W., M.A. Seyedabbasi, P.T. Imhoff, C.T. Miller (2012) Influence of porous media heterogeneity on nonaqueous phase liquid dissolution fingering and upscaled mass transfer, Water Resour. Res., 48, W08507, DOI: 10.1029/2011WR011389.
Seyedabbasi A., Adamson D. T., Newell C. J. (2010) Enhanced Attenuation of Unsaturated Chlorinated Solvent Source Zones using Direct Hydrogen Delivery, Partners in Environmental Technology Technical Symposium & Workshop sponsored by SERDP and ESTCP, ESTCP Project ER-1027, Nov. 30-Dec. 2, 2010, Washington, DC.
Seyedabbasi, M.A., Farthing, M.W., Imhoff, P.T., Miller, C.T. (2008) Influence of Wettability and Boundary Conditions on NAPL Dissolution Fingering, Advances in Water Resources, DOI: 10.1016/j.advwatres.2008.08.003, 31, 1687-1696.