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

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

2020 Design and Construction at Hazardous Waste Sites Virtual Symposium: Panel 1 and Panel 2

Sponsored by: Society of American Military Engineers (SAME) Denver Post, SAME Philadelphia Post, and US EPA

Archived: Monday, October 26, 2020
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Given the COVID-19 national health emergency and its affects on corporate/government travel policies as well as local/state health requirements, it has become necessary to hold the conference as a remote webinar based event. With the DCHWS Philadelphia Conference being canceled earlier this year, our fall conference will be co-sponsored by the SAME Philadelphia Post, the SAME Denver Metro Post, and the U.S. Environmental Protection Agency.

Registration for this session closed on October 22. For more information on this session, please visit the sponsor's event website.

Panel 1: Bringing Groundwater Treatment Remedies to the Finish Line
Moderator: Paul Favara, Jacobs

  • Use of Phytoremediation to Augment Standard Pump and Treat Technologies at Superfund Sites, Author: Neil J. Brown, Ecology and Environment Engineering and Geology, P.C.
  • The Application of Engineered Phytotechnology for Remedial System Optimization and Ultimate Site Closure of a Complex 1,4-Dioxane Site in Sarasota, Florida, Author: Ron Gestler, Geosyntec Consultants
  • Colloidal Activated Carbon used to Reduce PFAS and Chlorinated Solvent Concentrations in Groundwater to Below Detection Limits at a Michigan Army National Guard Site, Author: Ryan Moore (YM), REGENESIS

Panel 2: Combination Remedies: A Collection of Case Studies
Moderator: Thomas Cornuet, Ramboll

  • A Dual Biorecirculation System to Facilitate VOC Mass Reduction and Hydraulic Control in Fractured Bedrock, Author: Jeff Bamer, CDM Smith
  • Lessons Learned from the Installation and Operation of a Combined Injection and Groundwater Recirculation Trench System for In Situ Remediation, Author: Erin Hauber, US Army Corps of Engineers, Kansas City District
  • Optimized Cleanup Outcomes Through Proactive Combined Remediation, Author: Paul Dombrowski, ISOTEC Remedial Technologies

Accessibility, Recording, and Content Disclaimer

Rehabilitation Act Notice for Reasonable Accommodation

It is EPA's policy to make reasonable accommodation to persons with disabilities wishing to participate in the agency's programs and activities, pursuant to the Rehabilitation Act of 1973, 29 U.S.C. 791. Any request for accommodation should be made to Kate Garufi at 703-517-5857 or, preferably one week or more in advance of the webinar, so that EPA will have sufficient time to process the request. EPA would welcome specific recommendations from requestors specifying the nature or type of accommodation needed. Please note that CLU-IN provides both alternate phone call-in options and closed captioning for all webinars, and requests for these specific accommodations are not necessary.

Webinar Recording

By participating in this CLU-IN webinar, you automatically agree to authorize recording of audio and visual content presented during this live event and consent to subsequent use of this recording in the public domain by the U.S. Environmental Protection Agency. This recording may include questions, comments and poll responses provided by you during the live event in addition to your name, voice, image or likeness. This recording will be made available after the conclusion of the live event as part of the CLU-IN webinar archives, and will remain available indefinitely. If you do not wish to consent to the recording, please do not join the live event, and contact Jean Balent at 202-566-0832 or to discuss your concerns.

Content Disclaimer

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.


A photograph of Neil j. BrownNeil j. Brown, Ecology and Environment Engineering and Geology, P.C. (
Neil J. Brown is the Regional Engineering Manager for Ecology and Environment, Inc. A chemical engineer with over 30 years of experience, he has designed and successfully implemented multiple types of innovative remedies for Superfund sites across the continental United States and Alaska.

A photograph of Ron GestlerRon Gestler, Geosyntec Consultants
Ron Gestler is a Senior Scientist with Geosyntec Consultants. He has 20 years of experience applying phytoremediation, bioremediation and other in-situ technologies to address a wide variety of environmental impacts at sites in the U.S. and Canada. He has designed, installed and maintained successful phytoremediation systems for groundwater, soil and sediments impacted by contaminants including chlorinated solvents, petroleum hydrocarbons, metals/metalloids, salts, nutrients, herbicides, chlorophenols, 1,4-dioxane and 1,2,3-trichloropropane. Mr. Gestler has particularly focused on the use of innovative phytoremediation systems designed to target deep and/or highly impacted groundwater, including engineered approaches that enhance root uptake and contaminant degradation, as well as designs that combine phytoremediation with in-situ bioremediation and chemical reduction/oxidation technologies. He has also evaluated poorly performing phytoremediation systems designed and installed by other consultants, and has successfully enhanced their performance by identifying key deficiencies and successfully implementing corrective actions.

A photograph of Ryan MooreRyan Moore, REGENESIS
Ryan Moore has more than 19 years of experience as an environmental project manager and laboratory account executive relating to multimedia contamination sites throughout the U.S. His experience focused on in-situ groundwater and soil treatment, site investigations, corrective action evaluations, operation & maintenance of remediation systems, large soil removal remedial projects, vapor intrusion assessments, environmental laboratory operations, and business development. Ryan has been a Certified Hazardous Materials Manager since 2007. He has also presented at multiple conferences on in-situ remediation including events hosted by Battelle, AIPG, and other environmental associations. Ryan holds a B.S. of Environmental Studies from Manchester College, North Manchester, IN.

A photograph of Jeff BamerJeff Bamer, CDM Smith
Jeff is a principal environmental engineer with over 18 years of experience in the planning, design and implementation of innovative and conventional in situ and ex situ soil, groundwater and soil vapor treatment systems and remediation technologies. He has a BS in Engineering from Harvey Mudd College and a MS in Environmental Engineering from UC Berkeley.

A photograph of Erin HauberErin Hauber, US Army Corps of Engineers, Kansas City District
Erin Hauber provides engineering and technical support in the development, selection, design and implementation of remedial technologies. She is a registered Professional Engineer in Kansas with 14 years of professional experience as a remediation engineer, including 5 years with the US Army Corps of Engineers' Kansas City District preceded by 9 years in the private sector. She specializes in the treatment of groundwater and soil by physical, chemical, and biological processes with emphasis on in situ technologies, including the application of in situ thermal remediation. Outside of global pandemics, Erin enjoys attending conferences in person, exchanging ideas, and developing remedial strategies with project teams.

A photograph of Paul DombrowskiPaul Dombrowski, ISOTEC Remediation Technologies, Inc ( or 9179712956)
Paul Dombrowski, Senior Remediation Engineer at ISOTEC Remediation Technologies, Inc. has over 16 years in the environmental industry with experience in hazardous waste site investigation and remediation, with a focus in designing and implementing in-situ remediation technologies. At ISOTEC, Mr. Dombrowski is a technical leader for design, implementation, and management for a full suite of remediation technologies and supports activities to incorporate developing and innovative technologies and approaches to support ISOTEC projects and customers. In addition, Mr. Dombrowski is a Part-Time Lecturer at Tufts University in Medford, MA. He received a Bachelor of Science in Environmental Engineering and Master's Degree Environmental Engineering from Manhattan College in New York City. Mr. Dombrowski is a registered Professional Engineer in Massachusetts and Connecticut.


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 Kate GarufiKate Garufi, EPA OSRTI ( or 703-517-5857)
Kate Garufi, a project management professional, is the Rocky Mountain region remediation lead for HDR based out of Denver, Colorado. In this role, Kate partnerswith federal clients, including the U.S. Environmental Protection Agency and U.S. Army Corps of Engineers, and industrial clients on complex remediation projects. Prior to joining HDR, Kate spent 16 years at the EPA Headquarters in the Office of SuperfundRemediation and Technology Innovation. At EPA, she was a Superfund program expert in Superfund site management, design and construction project delivery, and technical project scoping. She holds a master's degree in environmental engineering from John Hopkins University and a bachelor's degree in chemical engineering from Virginia Tech

A photograph of Paul Favara, P.E.Paul Favara, P.E., Jacobs
Paul Favara, a Technology Fellow with Jacobs, has over 35 years of remediation experience and is a registered engineer. He specializes in optimization of site cleanup strategies and remediation projects. Paul has provided optimization and changed remedy services to the Army, USACE, Navy, DOE, NASA, and numerous global industrial customers.

A photograph of Thomas Cornuet, PGThomas Cornuet, PG, Ramboll
Mr. Cornuet is a hydrogeologist and a technical manager with Ramboll with more than 30 years of experience in the environmental industry including more than 15 years of experience managing the investigation, design, and remediation of hazardous waste sites. He has a BS in Geology from Indiana University of Pennsylvania and an MS in Engineering Geology from Drexel University.

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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: