11.22.21 Last week, EPA transmitted four important documents to the EPA Science Advisory Board (SAB) for peer review that included updated health assessments for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). This peer review, which will start on December 16, will inform EPA’s development of a Maximum Contaminant Level (MCL) Goal and a future, legally enforceable National Primary Drinking Water Regulation for PFOA and PFOS under the Safe Drinking Water Act. As noted in the PFAS Strategic Roadmap: EPA’s Commitments to Action 2021-2024, EPA intends to release a proposed drinking water regulation for PFOA and PFOS in fall 2022. These scientific documents will provide the underpinnings for that important regulation.
Continue Reading ICYMI: EPA Takes a Big Science Step Towards Setting a Drinking Water Standard for PFOA and PFOS and the Implications Are Much Broader

This insights column, originally published in Chemical Watch, provides a refresher on the important distinctions between hazard and risk based approaches and discusses them in the context of the findings of the EPA TSCA risk evaluations. The completed TSCA risk evaluations make findings of “no unreasonable risk” or presents “unreasonable risk” for each condition of use evaluated that is evaluated. However, EPA is considering modifying the existing findings, and the approach for future risk evaluations.  This column discusses what this might look like and whether this planned approach is consistent with the 2016 Lautenberg Amendments to TSCA.

Continue Reading Does putting a label on a ‘whole substance’ make sense from a public health perspective?

 On October 18, 2021, the US Environmental Protection Agency launched its PFAS Strategic Roadmap: EPA’s Commitments to Action 2021-2024 (“Roadmap”)[i] setting forth its “whole-of-agency” approach to address per- and polyfluoroalkyl substances (PFAS). The Roadmap sets forth timeframes for EPA actions to address PFAS across environmental media and under various statutory authorities including the Toxic Substances Control Act (TSCA), Resource Conservation and Recovery Act (RCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), Safe Drinking Water Act (SDWA), Clean Water Act (CWA) and Clean Air Act (CAA). As such, EPA’s implementation of the Roadmap, including key initiatives rolled out in the days following its release, will affect a broad spectrum of industry sectors and facilities throughout the PFAS lifecycle who may face new and expanded regulatory requirements and obligations.
Continue Reading EPA Issues PFAS Strategic Roadmap Swiftly Followed by Other Key PFAS Announcements

In a dramatic announcement last week, EPA suggested that if companies import, manufacture, or process a finished good for commercial sale, and that product is not a pesticide, not a firearm, not a tobacco product, and not a food, food additive, drug, cosmetic, or device, they will need to know all chemicals contained in those products. We explain more about this below.

EPA has traditionally declined to extend most of its chemical regulations to finished goods, which are known as “articles” under the Toxic Substances Control Act (TSCA), on the grounds it would be enormously difficult for importers of complex consumer products to determine the chemical identity of each chemical substance in these products. Industry stakeholders have generally supported this approach and have long taken the position that supply chains are too complex to expect finished product manufacturers to be aware of all chemicals in those products.


Continue Reading EPA May Require Companies To Know All The Chemicals In Products They Make Or Sell

On August 30th, EPA granted the 2007 Petition from the Pesticide Action Network North America (PANNA) and the Natural Resources Defense Council (NRDC) requesting that EPA revoke all chlorpyrifos tolerances. This followed the Ninth Circuit order earlier this year for EPA to: “(1) grant the 2007 Petition; (2) issue a final regulation within 60 days following issuance of the mandate that either (a) revokes all chlorpyrifos tolerances or (b) modifies chlorpyrifos tolerances and simultaneously certifies that, with the tolerances so modified, the EPA “has determined that there is a reasonable certainty that no harm will result from aggregate exposure to the pesticide chemical residue, including all anticipated dietary exposures and all other exposures for which there is reliable information,” including for “infants and children”; and (3) modify or cancel related FIFRA registrations for food use in a timely fashion consistent with the requirements of 21 U.S.C. § 346a(a)(1).”

Continue Reading EPA Publishes a Final Rule Revoking All Tolerances for Chlorpyrifos, Impacting Raw Agricultural Commodities and Food Uses

8.18.2021 EPA Finalizes Hazard Assessments for Two Fuel Additives (ETBE and tert-Butanol):

On August 18th, EPA finalized the long-awaited hazard assessments for both Ethyl Tertiary Butyl Ether (ETBE) and tert-Butyl Alcohol (tert-Butanol).  ETBE was previously added to gasoline to increase its octane levels. It is still registered with EPA for use as a fuel additive, but it is not used currently in the United States.  tert-Butanol is one of the primary metabolites of ETBE and has also been used as a fuel oxygenate. It is also used for other purposes including as a solvent and as a dehydrating agent.
Continue Reading ICYMI: EPA’s IRIS Program is Ramping up its Activity for chemicals, including PFAS; EPA’s TSCA Program Releases Guidance for Exemptions to CDR Reporting

In January, EPA obtained data that some mosquito control pesticides contained detectable levels of certain PFAS.  In a joint investigation with the State of Massachusetts, EPA found that fluorinated high-density polyethylene (HDPE) containers containing a mosquito control pesticide were leaching PFAS into the product. Now, EPA is testing different brands of fluorinated containers to determine whether they contain and/or leach PFAS and has asked the states with existing stocks of these pesticides to discontinue use as EPA evaluates the issue. Information on the EPA activities can be found here. EPA also began working with USDA and FDA to get a better understanding of the use of fluorinated polyethylene containers for pesticides and other products.

Continue Reading Companies that Manufacture or Distribute Pesticides or Foods in Polyethylene Containers Should Track FDA, EPA, and USDA Activities on PFAS

Care about Drinking Water Regulations?

7.22.2021 Request for Comment and Public Workshop for California Drinking Water Public Health Goals for PFOA and PFOS: The California Office of Environmental Health Hazard Assessment (OEHHA) released a draft document for public review describing proposed Public Health Goals (PHGs) for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in drinking water. A PHG is the level of a drinking water contaminant at which adverse health effects are not expected to occur from a lifetime of exposure.  PHGs published by OEHHA are considered by the State Water Resources Control Board in setting drinking water regulatory standards (Maximum Contaminant Levels, or MCLs) for California. The proposed PHG of 0.007 parts per trillion (ppt) for PFOA is based on kidney cancer in humans and the proposed PHG of 1 ppt for PFOS is based on liver and pancreatic tumors in laboratory animals. The draft technical support document can be found here. Public comments are due September 28, 2021. Details about how to send comments and a public workshop that will be held on September 28, 2021 can be found here.
Continue Reading ICYMI: Recent Chemical and PFAS Agency Activities