Presentation Overview
Federal PFAS sites are being managed through the CERCLA process. However, there exists what has been described as a “remedial investigation roadblock” – the challenge of completing a human health/ecological risk assessment, and the subsequent challenge of identifying feasible technologies for addressing PFAS in a feasibility study. Join MAREP for this comprehensive presentation which will present an overview of PFAS chemistry, analysis, toxicology, federal screening/advisory levels, and management/remediation technologies. The discussion will focus on releases of AFFF and will be framed to support the completion of a PFAS risk assessment as part of the remedial investigation and to support subsequent remedial alternative development. In addition, a PFAS management tool will be introduced that can be utilized to support setting remedial investigation objectives and for screening remedial technologies.
Speaker Bios:
Ted Tyler, P.E. (Senior Remediation Engineer, Cardno)
Mr. Tyler is a civil/environmental engineer with over 28 years of experience in performing pre-design feasibility testing (e.g., column studies, bench studies), field pilot testing, and full-scale treatment design and implementation. His project experience includes a wide array of projects involving groundwater, wastewater, soil, and soil gas impacted by PFAS, chlorinated solvents, fuel hydrocarbons (e.g., gasoline, diesel, jet fuels), metals (e.g., hexavalent chromium, arsenic), 1,4-dioxane, dioxins/furans, PCBs, pesticides and more. His design experience has provided successful engineered solutions for impacted sites at Department of Defense Installations, industry, and commercial sites around the United States, and in Australia. Mr. Tyler specializes in the treatment of emerging contaminants and is a contributing author and/or on-line instructor for Interstate Regulatory Council (ITRC) PFAS; 1,4-Dioxane; and Fractured Rock teams. He additionally received a patent for a groundwater treatment process (U.S. Patent No. 8,580,114) and is a frequent author and presenter regarding the ex situ and in situ treatment of emerging contaminants.
Heather N. Lynch, MPH (Supervising Health Specialist, Cardno ChemRisk)
Ms. Lynch is an environmental health scientist with more than 10 years of experience in toxicology and human health risk assessment consulting. Ms. Lynch earned a Master of Public of Health in Environmental Health, with a concentration in toxicology and a Bachelor of Arts in Environmental Studies. Her areas of expertise include systematic review and weight-of-evidence analyses, study quality assessment, and the toxicity of heavy metals and bioaccumulative chemicals, including PFAS. She has spent a large portion of the last six years of her career managing PFAS projects, which has facilitated a deep understanding of PFAS chemistry, potential human health effects, environmental transfer (e.g., from water to food crops and meat), and regulatory guidelines and limits. Ms. Lynch previously worked as a contractor to several government agencies, including managing large, chemical-specific toxicological reviews and risk assessments for the US EPA National Center for Environmental Assessment (NCEA). Ms. Lynch has published numerous original peer-reviewed articles (including systematic reviews, weight-of-evidence evaluations, and commentaries) on a range of substances and health effects. She is also a Governor-appointed member of the Massachusetts Toxics Use Reduction Act (TURA) Science Advisory Board.