PFAS - A National Perspective
George Naslas, P.G., LSP, Vice President and Environmental Practice Leader, Weston & Sampson
Per- and Poly-Fluoroalkyl Substances (PFAS) have become an increasing concern across the nation following their detection at military sites and impacts to public water supplies. Over with the past few years there has been unprecedented interest from the public, regulators and agencies across the nation. In addition, the rate of understanding of this family of emerging contaminants regarding their toxicology, fate and transport and treatment has been remarkable. Many communities are struggling to understand if they have a health hazard in their water supply and state and federal regulators have grappled with how to regulate these compounds and how they can establish safe standards for the water supplies in their region. In addition, the wastewater industry has also been impacted as the awareness of PFAS grows and its fate and transport is understood. In this presentation we will showcase the state of knowledge from across the country and highlight measures that other states have put in place to address the rapidly changing state of knowledge. We will review the toxicology and the science behind how standards are derived as well as discuss the different standards applied. The presentation will also discuss the implications for water supply and wastewater treatment as well as present an overview of treatment options and the planning tools that water supply and wastewater authorities are using to address this issue. This presentation is an overview and will highlight information from across the country, highlight lessons learned and see if the approach that other states are taking can help our understanding and management of our water and wastewater systems.
George is the Practice Leader for Environmental Services at Weston & Sampson; an environmental and civil engineering and design firm with offices throughout the east coast. He has led the companies Emerging Contaminants workgroup since 2016 and has worked on a variety of PFAS issues including impacts to drinking water, wastewater and the environment. A Licensed Site Professional in Massachusetts and a Professional Geologist in New Hampshire, New York and Tennessee, Georges career includes environmental assessment, remediation and compliance, hydrogeological investigations for water supply and wastewater systems as well as exploration geology in the petroleum industry. George has a Bachelors of Science in Geology from Imperial College London and a Masters of Science in Hydrology and Hydrogeology from the University of Nevada, Reno.