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Anna and Dave continue their Missouri Water Seminar PFAS miniseries with Assistant Director of Engineering-Environmental Compliance Jay Hoskins of the Metropolitan St. Louis Sewer District. Jay, Anna, and Dave discuss integrated planning, source control, rate setting, and risk communication in a rapidly changing regulatory environment.Continue Reading PFAS in Focus: Wastewater Utility Perspectives From Jay Hoskins, Metropolitan St. Louis Sewer District

Dave and Anna kick off a PFAS podcast series taped on location at the Missouri Water Seminar to provide an on-the-ground perspective of how state and local governments are dealing with the emerging regulatory framework for PFAS. Our first guest — Water Program Director Chris Wieberg of the Missouri Department of Natural Resources — explains how the “Show-Me” state uses data collection, collaboration, and risk communication to advance PFAS regulatory and management efforts statewide.
Continue Reading PFAS in Focus: Show-Me Insights From Chris Wieberg, Missouri Department of Natural Resources

Today, the U.S. Environmental Protection Agency (EPA) announced that Administrator Regan signed a proposed rule to designate two of the most widely studied per- and polyfluoroalkyl substances (PFAS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The proposed designation for PFOA and PFOS, if and when finalized, would provide EPA with powerful new tools to clean up existing contamination in hot spots across the country, while seeking to hold those responsible for the releases financially accountable. The designation would also increase EPA’s reporting and information gathering authorities as the agency continues to build its database of PFAS contamination.
Continue Reading First Major CERCLA Move for PFAS

The U.S. Environmental Protection Agency (EPA) this week added five PFAS chemicals for a total of six PFAS chemicals to a list of risk-based values. EPA uses these values to determine if response or remediation activities are needed. The five PFAS additions include: hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA — sometimes referred to as GenX chemicals), perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorohexanesulfonic acid (PFHxS). EPA added the first PFAS substance, perfluorobutanesulfonic acid (PFBS), to the Regional Screening Level (RSL) and Regional Removal Management Level (RML) lists in 2014 and updated it in 2021 when EPA released its updated toxicity assessment for PFBS.
Continue Reading EPA Sets Screening Levels for Five PFAS Compounds

Gearing up for a potential final rule in summer 2023, the U.S. Environmental Protection Agency (EPA) on January 10 submitted a proposed rule to the White House Office of Management and Budget (OMB) to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). OMB reviews are generally targeted to be completed within 90 days, but they can last much longer — or be concluded more quickly — depending on the rule being studied. The submittal is consistent with what EPA forecasted in its October 2021 PFAS Roadmap and its Unified Agenda.
Continue Reading EPA’s Delivery of Draft Rule to OMB for Study Starts the Clock for Potential PFAS Reporting and Enforcement Activity by 2023

Today, the U.S. Environmental Protection Agency (EPA) announced a new “Strategic Roadmap (Roadmap),” describing a suite of ongoing and future agency actions to address per- and polyfluoroalkyl substances (PFAS). While many of these actions were previously presented in EPA’s 2019 PFAS Action Plan, or in more recent announcements, the Roadmap provides additional updates and clarity into the expected timing of some regulatory actions. The new projected dates for some key regulatory initiatives include the following:
Continue Reading EPA Announces New “Strategic Roadmap” for PFAS

On March 26, the California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) gave notice of its selection of several per- and polyfluoroalkyl substances (PFAS) for review and possible listing under California’s Proposition 65 (Prop 65). OEHHA published two separate notices for public comment: one notice for perfluorooctane sulfonate (PFOS) and its salts and transformation and degradation precursors, and another notice for perfluorodecanoic acid (PFDA), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and perfluoroundecanoic acid (PFUnDA), as well as each of their salts. The public comment period for both notices closes on May 10, 2021.
Continue Reading California Selects Several PFAS Substances for Scientific Review and Possible Prop 65 Listing

On March 17, the U.S. Environmental Protection Agency (EPA) published an Advance Notice of Proposed Rulemaking (ANPRM) that puts forth 28 questions directed at manufacturers and formulators of per- and polyfluoroalkyl substances (PFAS). The agency intends to use the ANPRM and comments it receives to initiate formal rulemaking to establish effluent limitations guidelines (ELGs) for facilities that manufacture or blend PFAS with other chemicals or products, likely at least initially as an amendment to the existing guidelines governing the “Organic Chemicals, Plastics and Synthetic Fibers” (OCPSF) industrial sector.
Continue Reading EPA Publishes Advance Notice of Proposed Rulemaking in Preparation for Crafting PFAS Effluent Limitations Guidelines

Climate change and environmental justice are currently dominating the conversation in the environmental legal community, but 2021 promises to be an extremely active year for one of the most challenging environmental issues of this era — the emergence of per- and polyfluoroalkyl substances (PFAS) as a significant public health concern. The U.S. Environmental Protection Agency (USEPA) demonstrated its continued commitment to implementing the national PFAS Action Plan by announcing on February 22 two important steps toward establishing federal drinking water standards for PFAS compounds under the Safe Drinking Water Act (SDWA).
Continue Reading USEPA Advances Toward Regulation of PFAS in Drinking Water

On January 28, the Illinois Environmental Protection Agency (Illinois EPA) announced the issuance of health advisories for four (4) per- and polyfluoroalkyl substances (PFAS) compounds in accordance with the Illinois Part 620 groundwater regulations (35 Ill. Adm. Code Part 620). Health advisories are issued when a chemical substance that is harmful to human health, and for which no numeric groundwater standard exists, is detected and confirmed in a community water supply well (35 Ill. Adm. Code 620.605). The four (4) PFAS compounds for which Illinois health advisories were issued are PFBS, PFHxS, PFHxA, and PFOA.
Continue Reading Illinois EPA Issues Health Advisories for Four Per- and Polyfluoroalkyl Substances (PFAS)