EPA Seeks 1,4-Dioxane Case Pause as it Plans Fourth Risk Review

The EPA is asking a federal appeals court to indefinitely pause Union Carbide Corp.'s lawsuit challenging the agency’s 2024 risk evaluation for 1,4-dioxane so the agency can redo that assessment yet again.

The Environmental Protection Agency asked the US Court of Appeals for the Fifth Circuit on Wednesday to pause the lawsuit for up to two years so the agency can reconsider certain science issues underlying the chemical’s risk evaluation. The motion is unopposed, wrote Brandon Adkins, a Department of Justice attorney representing the agency.

Issues the agency would look at include whether it used the best available science and ...