U.S. EPA Contaminated Site Cleanup Information (CLU-IN)

U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division

FRTR Presents...Modeling in Support of Site Remediation, Session 2

Sponsored by: Federal Remediation Technologies Roundtable (FRTR)

Archived: Wednesday, December 4, 2019
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This is part of a webinar series featuring presentations delivered at the Spring 2019 FRTR Meeting and related material. This session will include the following topics:

  • U.S. EPA Experience in Using Models to Support Remediation
  • Role of Modeling in the Remediation of the WP14/LF15 Chlorinated Solvent Plume at Dover Air Force Base, Delaware
  • Tooele Army Ordnance Depot — Continuous Improvement of a Groundwater Model for Remedy Decision-Making over a 25-Year Period

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This webinar is intended solely to provide information to the public. The views and opinions expressed as part of this webinar do not necessarily state or reflect those of the U.S. Environmental Protection Agency. It is not intended, nor can it be relied upon, to create any rights enforceable by any party in litigation with the United States, or to endorse the use of products or services provided by specific vendors. With respect to this webinar, neither the United States Government nor any of their employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.


Noman Ahsanuzzaman, Ph.D., U.S. Environmental Protection Agency (
Dr. Noman Ahsanuzzaman (P.E.) provides scientific support to Superfund and RCRA sites in U.S. EPA Region 4. He is a civil and environmental engineer with over twenty years of experience in subsurface flow and solute transport modeling, site characterization, groundwater remediation, and modeling software development. He has developed or co-authored several modeling software packages (e.g., FOOTPRINT, REMChlor, and REMFuel) for the USEPA's Center for Subsurface Modeling Support (CSMoS) in Ada, Oklahoma. Dr. Ahsanuzzaman has performed technical review of groundwater modeling software packages and site-specific applications of groundwater models in numerous U.S. EPA-regulated Superfund and RCRA sites.

Scott Morgan, PG, AECOM (
Scott Morgan received both graduate and undergraduate degrees in geology from West Virginia University. In the subsequent 30 years (more than 20 years at AECOM and predecessor companies), he has contributed to hydrogeologic and groundwater modeling investigations for both domestic and international private and government clients. His primary focus areas are groundwater supply and site characterization within the mid-Atlantic coastal plain and Piedmont physiographic provinces. Most recently, Mr. Morgan has been a contributor to investigations that utilize high resolution analysis and innovative tools to evaluate antecedent conditions and the natural recovery of groundwater at a site impacted by multi-component DNAPL. Mr. Morgan's modelling philosophy is generally in alignment with the aphorism "All models are wrong, but some are useful" that has been attributed to the statistician George Box. As such, Mr. Morgan values a simplified and consistent modeling approach wherein the true value comes from the learnings and relationships developed through the multidisciplinary collaborations included as part of the model development more so than the resultant model itself.

Jon Fenske, U.S. Army Corps of Engineers Institute of Water Resources (
Jon Fenske is a senior hydraulic engineer with the US Army Corps of Engineers, Institute for Water Resources, Hydrologic Engineering Center (HEC) in Davis, California. Mr. Fenske has over 29 years of professional experience in the field of groundwater hydrology. At HEC his work focuses on numerical modeling of groundwater flow, interaction between groundwater and surface water, subsurface investigative methods, and contaminant transport. Mr. Fenske has assisted in groundwater investigation and modeling projects in Kenya, Ethiopia, Mongolia, Viet Nam, and Cambodia. At HEC, Mr. Fenske is tasked with providing a robust groundwater capability to the HEC surface water models HEC-RAS and HEC-HMS. For 2 years he was an Environmental Engineer with the U.S. Environmental Protection Agency, in Dallas, TX. His tasks focused on groundwater hydrology, contaminant transport and remediation.


A photograph of Jean BalentJean Balent, U.S. EPA Technology Innovation and Field Services Division ( or 202-566-0832)
Ms Balent is on the staff of the EPA's Technology Innovation and Field Services Division where she has worked to collect and disseminate hazardous waste remediation and characterization information since 2003. Ms Balent manages the Clean Up Information Network website and actively supports online communication and collaboration resources available to EPA. She formerly worked with the US Army Corps of Engineers Environmental Engineering Division in the Buffalo District. Ms Balent was also a member of the SUNY-Buffalo Groundwater Research Group where she constructed and tested large scale models of groundwater flow. Ms Balent has also conducted research relating to the Great Lakes, environmental remediation, and brownfields re-development. She holds a Bachelor's degree in environmental engineering from SUNY-Buffalo and a Master's degree in Information Technology from AIU.

A photograph of Cindy FrickleCindy Frickle, U.S. EPA Office of Superfund Remediation and Technology Innovation ( or 202-566-0927)
Cindy Frickle is a physical scientist with EPA's Superfund program where she reviews and propagates technical information to site cleanup professionals through Clu-In, EPA forums, and interagency channels. Prior to joining EPA, she spent time characterizing contaminated sites, coring sediments, studying microbes, and teaching. She completed her Biogeology MS and Geology BS in the University of Minnesota's School of Earth Sciences.

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If you have a suggested topic or idea for a future CLU-IN internet seminar, please contact:

Jean Balent
Technology Integration and Information Branch

PH: 202-566-0832 | Email:
Michael Adam
Technology Integration and Information Branch

PH: 202-566-0875 | Email: