PFAS in Focus: Show-Me Insights From Chris Wieberg, Missouri Department of Natural Resources - Reflections on Water Podcast
[Podcast] Catching Up on Canadian Environmental Regulation
PFAS: Increasing Regulations and Managing Legal Liability
EPA Plan Changes PFAS Outlook For Companies, Regulators
2BInformed: The Future of Fluoride in Drinking Water, the New TSCA Fees Rule, and the Drinking Water Contaminant Candidate List 5
The Great Green North: A Discussion on Canada’s Environmental Regulations
Forever Chemicals: What They are and What is being Done to Minimize Their Impact
What are PFAS and Why Should We Care?
The United States Environmental Protection Agency (“EPA”) published a document titled: Requirements and Best Practices for the Collection and Analysis of Samples for the PFAS National Primary Drinking Water Regulation...more
“Contaminants Compass” is a monthly newsletter that provides updates, legal observations and actionable tips to navigate the evolving legal challenges of per- and polyfluoroalkyl substances (PFAS) and similar chemicals and...more
Federal Rollbacks Prompt State Action - The Environmental Protection Agency (EPA) under the Trump Administration has announced plans to rescind and reconsider key portions of the 2024 PFAS (per- and polyfluoroalkyl...more
Earthjustice submitted a July 28th document to the United States Environmental Protection Agency (“EPA”) styled: Petition for Emergency Action under the Safe Drinking Water Act, 42 U.S.C. § 300i and 42 U.S.C. §...more
In 2024, the US Environmental Protection Agency (EPA) established maximum contaminant levels (MCL) for six PFAS chemicals in drinking water. That rule set MCLs of 4 parts per trillion (ppt) for perfluorooctanoic acid (PFOA)...more
In the latest edition of the PFAS Primer Quarterly Update, our roundup of regulatory, litigation, and scientific actions involving PFAS, the EPA rethinks MCLs, more states prohibit new PFAS products, and ongoing discharge...more
A recent study published in Nature Microbiology by researchers at the University of Cambridge revealed that certain human gut bacteria may have the capacity to bioaccumulate per- and polyfluoroalkyl substances (PFAS) and...more
EPA announced on May 14, 2025 that it will maintain the Maximum Contaminant Level (“MCL”), also known as the national primary drinking water standard, for two PFAS, perfluorooctanoic acid (“PFOA”) and perfluorooctanesulfonic...more
In a move that signals potential policy shifts under the new administration, the U.S. Court of Appeals for the District of Columbia Circuit granted EPA’s requests for 60-day stays in two high-profile cases challenging...more
Senator Jerry McNerney of California has introduced Senate Bill 454 (SB 454) to address the growing problem of per- and polyfluoroalkyl substances (PFAS) contamination in California’s water supply. The legislation seeks to...more
The United States Department of Justice (“DOJ”) on behalf of the federal Environmental Protection Agency (“EPA”) entered into a January 16th Consent Decree (“CD”) with the operators of the Oasis Mobile Home Park (“Park”) for...more
On November 14, 2024, the U.S. Environmental Protection Agency (“EPA”) determined that 1,4-dioxane presents an unreasonable risk of injury to human health under its conditions of use....more
Over the last six years, our firm has written extensively about 1,4-Dioxane, from U.S. EPA’s proclamations to state laws and regulations, litigation, and distinctions between federal and state perspectives. (see compilation...more
The existence of lead pipes in municipal water systems and service lines connecting residential and commercial properties to water mains throughout the United States continues to generate litigation and regulatory action. The...more
As part of the agency’s efforts to regulate per- and polyfluoroalkyl substances (PFAS), the EPA released a draft risk assessment for use of sewage sludge that is land-applied as a soil conditioner or fertilizer. Public...more
“Contaminants Compass” is a monthly newsletter that provides updates, legal observations and actionable tips to navigate the evolving legal challenges of per- and polyfluoroalkyl substances (PFAS). This edition discusses the...more
PFAS are everywhere—even when they’re not. A recent study published in Proceedings of the National Academy of Sciences is garnering significant media attention for suggesting that a crisis exists because of...more
For the second year in a row, 2024 was a banner year for the regulation of per- and polyfluoroalkyl substances (PFAS) at the federal level. Various federal agencies, including the Environmental Protection Agency (EPA), Food...more
Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals used in a wide range of consumer products since 1947, known for their strong carbon-fluorine bonds. These bonds make PFAS resistant to breakdown, earning them...more
Petitioners filed their opening briefs in the consolidated challenge to the Environmental Protection Agency’s (“EPA’s”) Final Rule establishing Maximum Contaminant Levels (“MCLs”) and Maximum Contaminant Level Goals (“MCLGs”)...more
“Contaminants Compass” is a monthly newsletter that provides updates, legal observations and actionable tips to navigate the evolving legal challenges of per- and polyfluoroalkyl substances (PFAS). This edition discusses...more
With 2024 winding down and a change of presidential administration imminent, it is worthwhile to consider the state of EPA’s efforts to regulate per- and polyfluoroalkyl substances (PFAS). In this connection, EPA recently...more
Food and Water Watch and dozens of other environmental organizations submitted a November 25th petition to the United States Environmental Protection Agency (“EPA”) requesting that microplastics be included in the Sixth...more
On November 20, 2024, the US Environmental Protection Agency announced its new initiative—The Tackling Emerging Contaminants Initiative (Initiative). This Initiative is funded by a portion of President Biden’s $50 billion...more
On 25 November, the US Environmental Protection Agency (EPA) received a petition signed by over 100 consumer advocacy groups calling for the EPA to develop a monitoring program for microplastics in drinking water. If...more