Per- and polyfluoroalkyl substances (PFAS) are a large family of thousands of man-made fluorinated organic chemicals. These chemicals have been used in several consumer products and industry processes due to their oil and water repellent properties, temperature resistance, and friction reduction. These environmentally persistent chemicals were largely unregulated until the 2010s, and are now present throughout our built and natural environments.


Researchers around the world have identified effects to health and the environment at concentrations near those detected in environmental media. This presence of these chemicals in our waste streams and environment raises important issues for waste management and environmental cleanups.

ASTSWMO is at the forefront of the discussion of the challenges posed by PFAS. In 2016, the Association formed the Contaminants of Emerging Concern (CEC) Steering Committee to keep it on the cutting edge of PFAS research and help inform the member organizations of regulatory initiatives underway across the country.

This Site leads to resources available from the Federal Government and almost every State. Please visit the Interstate Technical Regulatory Council (ITRC) PFAS technical resources for a broad discussion of the state of knowledge of PFAS in the Environment.

ASTSWMO has a mandate to comment on proposed federal regulations on behalf of its members.

A summary of ASTSWMO comments on the March 2023 Proposed Maximum Contaminant Levels for six PFAS is available here.

ASTSWMO’s comments regarding the U.S. Environmental Protection Agency’s (EPA) Advanced Notice of Proposed Rulemaking (ANPRM) on Potential Future Designations of Per- and Polyfluoroalkyl Substances (PFAS) as CERCLA Hazardous Substances
ASTSWMO Comments on U.S. EPA’s Proposed PFAS National Priority Drinking Water Regulation
ASTSWMO Statement on EPA’s Proposal for PFAS National Primary Drinking Water Regulation
ACWA, ASDWA, ASTSWMO, ECOS PFAS PBT Reporting Exemption TRI-EPCRA Comments
Guidance for Developing a State Contaminants of Emerging Concern Program

Previous ASTSWMO PFAS comment letters and comment letters related to waste management and environmental cleanup are compiled here.