The Nickel Report

The U.S. Department of Justice (DOJ) recently filed four lawsuits against states related to specific climate change actions they have taken or planned to take. On April 30, 2025, DOJ preemptively sued Hawaii and Michigan to prevent both states from going forward with their stated intent to pursue legal action against fossil fuel companies for alleged harms caused by climate change and to declare those states’ claims unconstitutional. The following day, on May 1, 2025, DOJ sued New York and Vermont for their enactment of climate “superfund” laws, which create retroactive cost recovery claims on producers of fossil fuels, seeking to enjoin the enforcement of those statutes and to have them declared unconstitutional as well.

The US Environmental Protection Agency (“EPA”) announced its enforcement and compliance results for Fiscal Year 2022 (“FY2022”) in late December. In the Annual Results report prepared by EPA’s Office of Enforcement and Compliance Assurance (“OECA”), OECA highlights EPA’s efforts to target the most serious violations of the country’s core environmental statutes and civil rights laws—effectuating the mission and principles set forth in its FY2022 to 2026 EPA Strategic Plan. According to OECA, EPA’s enforcement and compliance program used “a range of tools and best practices” to specifically target water, air, land and chemical violations that impacted communities the most. In so doing, EPA reportedly reduced, treated or eliminated approximately 95 million pounds of pollutants and compelled violators to pay over $300 million in fines, restitution or penalties. The enforcement and compliance trends highlighted below continue an overall decline seen in the last decade, yet provide evidence that EPA is succeeding in its enforcement and compliance efforts in areas that are the biggest priority for the Biden administration.

On June 15, 2022, the United States Environmental Protection Agency (EPA) released drinking water health advisories [1] for certain per- and polyfluoroalkyl substances (PFAS), resulting in the establishment of:

1. Near zero updated interim advisory levels for Perfluorooctanoic acid (PFOA) and Perfluorooctane sulfonic acid (PFOS) that are not only orders of magnitude below previously established levels, but that are also below detectable levels and, notably, were issued in advance of completion of peer review by EPA’s Science Advisory Board (SAB); and
2. Newly issued final advisories at low levels for GenX and PFBS chemicals that have been used as replacement chemicals for PFOA and PFOS.

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.