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PFAS Resources

PFOS molecular formula.

FedCenter has developed this PFAS Resources Program Area page to consolidate information on PFAS compounds for federal agencies. This page includes information from federal, state, local, and tribal governments and non-governmental and private organizations. Information ranges from regulations and guidance to scientific studies, conferences, and trainings. The page will be updated regularly to assist federal agencies in addressing this increasingly important topic.

What is PFAS?

Per- and polyfluoroalkyl substances, or PFAS, are a class of human-made chemicals manufactured and used in a range of industries since the 1940s. The group consists of thousands of chemicals, including PFOA (perfluorooctanoic acid) and PFOS (perfluorooctanesulfonic acid), which are the two most-studied PFAS compounds. PFAS are highly stable oil- and water-resistant compounds and have been used in a variety of products such as carpets, waterproof clothing, non-stick pans, dental floss, chrome-plating, and firefighting foam. PFAS are also environmentally persistent and bioaccumulative. PFAS have been associated with adverse health affects, including low infant birth weight, thyroid hormone disruption, high cholesterol, and certain cancers.

Scientific research on PFAS continues to develop and, as the scientific community and regulators increase their knowledge of PFAS, regulatory action to address the compounds is also increasing. This page will be updated with a range of information in the categories below to keep federal agencies apprised of the latest developments regarding PFAS compounds. More on PFAS basics at EPA.

Please use the links below to quickly jump to the information area needed or scroll down to view all items.

Regulations, Guidance, and Policy
State, National and International
On January 14, 2021, EPA signed an Advance Notice of Proposed Rulemaking (ANPRM). The ANPRM was not published in the Federal Register and is undergoing review in accordance with the Regulatory Freeze Pending Review Memorandum that White House Chief of Staff Ronald Klain issued on January 20, 2021.
The U.S. Environmental Protection Agency (EPA) continues to make addressing per- and polyfluoroalkyl substances (PFAS) in the environment an active and ongoing priority. As part of these efforts, today, EPA is issuing a final guidance document that outlines which imported articles are covered by the agency's?July 2020 final rule?that prohibits companies from manufacturing, importing, processing, or using certain long-chain PFAS without prior EPA review and approval. There are no significant changes between the final guidance document and the draft document, which was released for public comment in December.
On December 19, 2019, EPA released Interim Recommendations for Addressing Groundwater Contaminated with PFOA and PFOS. These recommendations provide clear and consistent guidance for federal cleanup sites being evaluated and addressed under federal programs, including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and corrective action under the Resource Conservation and Recovery Act (RCRA). The recommendations in this guidance may also be useful for state, tribal, or other regulatory authorities (e.g., federal facility cleanup programs and approved state RCRA corrective action programs).
Compiled by the Interstate Technology Regulatory Council (ITRC), current as of May 2021, the Water Table and the Soil Table found in this MS Excel document includes the available PFAS water and soil values established by the USEPA, each pertinent state, or country (Australia, Canada and Western European countries.)
Proposed and Final Legislation
EPA is announcing its withdrawal of the 2011 determination to regulate perchlorate in accordance with the SDWA. On 11 February 2011, the EPA published a Federal Register document in which the Agency determined that perchlorate met the SDWA's criteria for regulating a contaminant. On 26 June 2019, the EPA published a proposed national primary drinking water regulation (NPDWR) for perchlorate and requested public comments on multiple alternative actions, including the alternative of withdrawing the 2011 regulatory determination for perchlorate. The EPA has determined that perchlorate does not occur "with a frequency and at levels of public health concern" within the meaning of the SDWA. In addition, in the judgment of the EPA Administrator, regulation of perchlorate does not present a "meaningful opportunity for health risk reduction for persons served by public water systems." Accordingly, the EPA will not issue a NPDWR for perchlorate at this time. For purposes of judicial review, the regulatory determination in this document is issued as of 21 July 2020. POC is Samuel Hernandez, Office of Ground Water and Drinking Water, Standards and Risk Management Division (Mail Code 4607M), EPA, 1200 Pennsylvania Avenue NW, Washington, DC 20460; tel: (202) 564-1735; email: hernandez.samuel@epa.gov. (Federal Register: 21 July 2020 [Rule] Pages 43990-44002)
A bill to require the Administrator of the Environmental Protection Agency to designate per- and polyfluoroalkyl substances as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980. (Congressional Record: 13 April 2021 [House] Pages H1734-H1736)
EPA is adding three per- and polyfluoroalkyl substances (PFAS) to the list of chemicals subject to toxic chemical release reporting under the Emergency Planning and Community Right-to-Know Act (EPCRA) and the Pollution Prevention Act (PPA). This action implements the statutory mandate in the National Defense Authorization Act for Fiscal Year 2020 (FY2020 NDAA) enacted on December 20, 2019. As this action is being taken to conform the regulations to a Congressional legislative mandate, notice and comment rulemaking is unnecessary. This final rule is effective 6 July 2021. POC is Daniel R. Ruedy, Data Gathering and Analysis Division, Mail Code 7410M, Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-0001; tel: (202) 564-7974; email: ruedy.daniel@epa.gov. (Federal Register 3 June 2021 [Rule] Pages 29698-29701)
There are a variety of laws and regulations to protect public health and the environment as it relates to PFAS in the environment.
Congressional Material
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Supporting Information and Tools
Federal Agency Resources
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Databases/Software Tools
The TDB can help drinking water utilities, water treatment process design engineers, researcher organizations, federal and state regulators, professional organizations, environmental groups, and academicians. It can be used to identify effective drinking water treatment processes, to plan for future treatment plant upgrades, to provide information to first responders to spills or emergencies, to recognize research needs, to complement literature reviews and literature searches, and to assist regulators in Best Available Technology and Contaminant Candidate List (CCL) decisions.
EPA announced an update to its Drinking Water Treatability Database with new treatment options and scientific references for per- and polyfluoroalkyl substances (PFAS). The database update will further help states, tribes, and local governments, as well as water utilities, make better decisions to manage PFAS in their communities.
PFAS Project Lab maintains a public PFAS contamination site tracker, which now contains more than 850 PFAS-contaminated sites and over 600 contaminated water systems in the United States.
Newsletter sponsored by Northeastern University's Social Science Environmental Health Research Institute.
On December 18th, EPA announced the new validated Method 533 for testing additional short chain per- and polyfluoroalkyl substances (PFAS) in drinking water. Method 533 measure PFAS by isotope dilution anion exchange solid phase extraction and liquid chromatography/tandem mass spectrometry (LC-MS/MS). The lowest concentration minimum reporting levels (LCMRLs) for the method analytes are provided in a table and range from 1.4 to 16 nanograms/L ((ng/L) or parts per trillion (ppt)). The combination of this new method and existing EPA methods can now measure 29 different PFAS compounds in drinking water.
EPA released an updated toxicity assessment for perfluorobutane sulfonic acid (PFBS), a member of a larger group of per- and polyfluoroalkyl substances (PFAS). PFBS assessment is part of EPA's commitment to restore scientific integrity to all of the agency's actions and increase the amount of research and information available to the public on PFAS chemicals. EPA, federal agencies, states, tribes, and local communities can use the PFBS toxicity assessment, along with specific exposure and other relevant information, to determine if and when it is necessary to take action to address potential health risks associated with human exposures to PFBS under appropriate regulations and statutes.
EPA's PFAS Action Plan outlines concrete steps the agency is taking to address PFAS and to protect public health. EPA's website provides basic information, tools, and resources regarding PFAS.
This website includes the PFAS Technical and Regulatory Guidance Document, PFAS Fact Sheets and Explainer Videos, Training Module Videos and external tables of data and information prepared by the ITRC PFAS Team.
This Interstate Technology and Regulatory Council (ITRC) online document includes the PFAS Technical and Regulatory Guidance Document, PFAS Fact Sheets and Explainer Videos, Training Module Videos and external tables of data and information prepared by the ITRC PFAS Team. The document is designed specifically to support state and federal environmental staff, as well as others (including stakeholders, project managers, and decision makers), to gain a working knowledge of the current state of PFAS science and practice. The guidance document can be downloaded as a PDF.
There are a variety of resources available to states dealing with per- and polyfluoroalkyl substances (PFAS) including a bimonthly ECOS-EPA PFAS call, PFAS data and tools developed by EPA, EPA PFAS research timelines, and PFAS risk communication webpages.
EPA continues its focus on taking concrete action to address PFAS and protect public health. Building on the work outlined in the February 2019 PFAS Action Plan, the agency is expanding its research efforts and capabilities by launching its PFAS Innovative Treatment Team (PITT).
EPA memorandum to create a new "EPA Council on PFAS" that is charged with building on the agency's ongoing work to better understand and ultimately reduce the potential risks caused by these chemicals.
The ITRC PFAS Team is producing technical resources to help regulators and other stakeholders improve their understanding of the current science regarding per- and polyfluoroalkyl substances (PFAS).
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Training, Presentations and Briefings
Proceedings from the 2020 ECOS State Environmental Protection (STEP) Meeting, Partnering on PFAS, a two-afternoon, virtual policy summit to explore how state and federal regulators and a variety of other stakeholders are coordinating to combat PFAS contamination.
Webinar proceedings from DoD-funded research to improve understanding of the ecological risks of PFAS.
The Interstate Technology & Regulatory Council (ITRC) is hosting a series of training events led by PFAS experts from state and federal agencies, academia, and private industry. The training events will explore the key elements for characterizing and managing PFAS impacted sites. The training events are free for state and federal employees, academics, and public stakeholders.
DoD website providing current information on DoD related activities related to PFAS.
Conferences and Events
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Last Updated: August 04, 2021