10 PFAS remediation experts
From PFAS Remediation Discipline Director at CDM Smith to Global Principal for PFAS at Jacobs, five of these PFAS remediation experts carry PFAS in their current job titles, and the rest include a Dow remediation manager, a project manager on AFCEC contracts and a federal remediation practice leader. Call them when scoping a PFAS site investigation, screening treatment for groundwater or drinking water, or planning cleanup at a military or industrial site.
Professionals to explore
Andrea Stewart
LinkedInExperience: Senior Environmental Project Manager - PFAS · APTIM
Federal PFAS programs suit Andrea Stewart, Lead Environmental Engineer with the US Army (2008–2025) and Senior Environmental Project Manager - PFAS at APTIM since January 2026. Andrea served as a federal civilian for most of their career, has also been Founder Principal Consultant at A2 Impact Solutions (A2IS) since 2024, and was an Environmental Project Manager for commercial and industrial clients (2001–2008).
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Claudia Walecka-Hutchison, PhD
LinkedInExperience: Remediation Manager · Dow
When PFAS is mixed with chlorinated solvents or 1,4-dioxane, Claudia Walecka-Hutchison, PhD is the one to ask about biodegradation and fate and transport. Remediation Manager at Dow since May 2016, Claudia works as an internal consultant and subject matter expert on those contaminants, and was earlier Associate EH&S Remediation Manager (2015–2016) and Environmental Scientist Chemist (2013–2014) at Dow, and an Environmental Scientist at Washington Group International and the Louisiana Department of Environmental Quality.
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Jeffrey McDonough
LinkedInExperience: PFAS Remediation Discipline Director · CDM Smith
Choosing a remediation approach for a PFAS site is the question for Jeffrey McDonough, PFAS Remediation Discipline Director at CDM Smith since May 2024, after Technical Director at ERM (2022–2024). Jeffrey was earlier Technical Expert and Vice President at Arcadis (2007–2022) and a Research Assistant at Penn State University (2005–2006), and is based in Littleton, Colorado.
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Jeffrey Stoicescu
LinkedInExperience: Director of Aviation Engineering Co-Lead PFAS Remediation · Langan Engineering & Environmental Services
Aviation and PFAS meet in Jeffrey Stoicescu's title, Director of Aviation Engineering Co-Lead PFAS Remediation at Langan Engineering & Environmental Services since 2023. Jeffrey was also an Associate at Langan (2014–2024), Vice President Senior Project Engineer (2002–2014) and Senior Associate Principal Environmental Engineer (2002–2014) at Arcadis, and Senior Geotechnical Engineer at Malcolm Pirnie / ARCADIS (2000–2002). A fit for PFAS remediation questions on aviation engineering work.
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Jim Fenstermacher
LinkedInExperience: Technical Manager SME · Ramboll
Jim Fenstermacher has been Technical Manager SME at Ramboll since March 2018, a technical leader on the fate, transport and remediation of PFAS and a member of the Emerging Contaminant Initiatives team. Jim was Remediation Technical Lead at AECOM (2014–2018), Environmental Remediation Group Leader at URS Corporation, An AECOM Company (2000–2014), Environmental Engineer at Clean Harbors (1993–2000) and Staff Engineer at AECOM (1989–1992). Suited to questions on how PFAS moves at a site and what that means for the remedy.
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Judy Gallagher
LinkedInExperience: Senior Vice President, Federal Remediation Practice Leader · AECOM
Judy Gallagher has been Senior Vice President, Federal Remediation Practice Leader at AECOM since July 2024, overseeing Air Force, Army, Navy and EPA remediation contracts, with work spanning federal performance based contracts, RCRA and CERCLA groundwater and soil remediation and PFAS investigations. Judy's earlier AECOM titles include Senior Vice President, Federal Remediation Practice Operations Lead (2023–2024), Senior Vice President, Federal Civilian Accounts Leader (2020–2023) and Vice President, Federal Programs (2012–2023). Fits questions on federal PFAS remediation contracts.
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Kate Schmitz Fogarty
LinkedInExperience: Project Director · TRC Companies, Inc.
Kate Schmitz Fogarty has been Project Director at TRC Companies, Inc. since April 2014 and coordinated a large multi-year study to delineate PFAS in groundwater and source zone soil, protect potential receptors and confirm surface water and groundwater mass flux. The data from that study aided the development and screening of potential corrective action technologies. The pick for scoping a PFAS delineation study before choosing a remedy.
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Katie Walker
LinkedInExperience: Global Principal for PFAS · Jacobs
Since January 2025, Katie Walker has been Global Principal for PFAS at Jacobs, focused on identifying and optimizing treatment solutions for PFAS in drinking water and reuse systems. Katie's HDR titles were Drinking Water Lead (2019–2024), Water Wastewater Project Manager (2012–2019) and Water Wastewater EIT (2008–2011). The one to ask about PFAS treatment for drinking water and reuse.
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Kristen Jenkins
LinkedInExperience: Director of PFAS and Emerging Contaminants · Kiewit
PFAS in industrial water and wastewater is the fit for Kristen Jenkins, Director of PFAS and Emerging Contaminants at Kiewit since August 2024, with bachelor's and master's degrees in chemical engineering and 25 years of environmental consulting for industry focused on water and wastewater. Kristen was Industrial Water Manufacturing Market Sector Lead at Brown and Caldwell (2022–2024), VP Sustainability - OLI Systems at OLI (2021–2022) and Global Technology Lead - Industrial Water at GHD (2018–2021).
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Leah Waller
LinkedInExperience: Senior Project Manager · Brice Environmental Services Corporation
PFAS (PFOS/PFOA) investigations, including site inspections and remedial investigations, are the expertise Leah Waller names as Senior Project Manager at Brice Environmental Services Corporation since October 2018. At CH2M, Leah was Project Manager on AFCEC contracts at Eielson AFB, Alaska (2017–2018) and Joint Base Elmendorf-Richardson (JBER) (2012–2018), and Regulatory Specialist Project Manager on an AFCEC PBR Contract at Beale AFB, California (2009–2018). The pick for PFAS work at bases with AFCEC contracts.
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Choose the right perspective
Judy Gallagher is the call for federal remediation contracts, Leah Waller for AFCEC contract sites, and Andrea Stewart held a US Army Lead Environmental Engineer title from 2008 to 2025. For treating PFAS in water, Katie Walker and Kristen Jenkins have held drinking water and industrial water titles; Jim Fenstermacher and Claudia Walecka-Hutchison cover fate and transport, and Kate Schmitz Fogarty coordinated a study delineating PFAS in groundwater and source zone soil to screen corrective action options.
Questions to take into the conversation
- 01How many rounds of sampling does a PFAS remedial investigation usually need before soil and groundwater source zones are clear enough to choose a remedy?
- 02When does granular activated carbon or ion exchange make sense for PFAS in groundwater, and when should a site owner wait for newer destruction technologies?
- 03How should a site owner budget a PFAS cleanup if drinking water limits change partway through the project?
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.