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The U.S. Environmental Protection Agency (EPA) is seeking applications for research to develop and demonstrate nanosensor technology with the potential to detect, monitor, and degrade per- and polyfluoroalkyl substances (PFAS) in groundwater or surface water that may be used as drinking water sources. EPA states that advances in nanoscience and nanotechnology have the potential to address the challenges of detection and treatment of PFAS-contaminated waters. Because nanomaterials are smaller in...

The U.S. Environmental Protection Agency (EPA) issued on April 26, 2024, the final National Primary Drinking Water Regulation (NPDWR) for six per- and polyfluoroalkyl substances (PFAS). 89 Fed. Reg. 32532. The NPDWR establishes Maximum Contaminant Levels (MCL) for six PFAS in drinking water: perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and hexafluoropropylene oxide dimer acid (HFPO-DA) as contaminants...

The U.S. Environmental Protection Agency (EPA) Office of Inspector General (OIG) announced the availability of its fiscal year (FY) 2022 oversight plan on December 14, 2021. According to OIG, the plan reflects the priority work that the OIG believes is necessary to keep EPA, the U.S. Chemical Safety and Hazard Investigation Board (CSB), and Congress fully informed about issues relating to the administration of EPA programs and operations. The planned oversight projects...

On October 17, 2017, the U.S. Environmental Protection Agency (EPA) issued a “Quick Guide for Disinfectant Products for Drinking Water Use by Public Water Systems” (Quick Guide) which it states was developed “in response to requests to help prospective pesticide registrants gain a basic understanding of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) product registration process and how it relates to the Safe Drinking Water Act (SDWA) requirements.”  Further,...

In an opinion issued on August 10, 2015, the U.S. Court of Appeals for the Ninth Circuit granted a writ of mandamus requested by Pesticide Action Network North America and the Natural Resources Defense Council (Petitioners) to require that the U.S. Environmental Protection Agency (EPA) act in response to a 2007 administrative petition to cancel the registrations of all pesticides containing chlorpyrifos.  A writ of mandamus to compel administrative action is an extraordinary remedy and...

On April 3, 2014, the Senate Committee on Environment and Public Works (EPW Committee) marked up S.1961, the "Chemical Safety and Drinking Water Protection Act." Senators Joe Manchin (D-WV), Barbara Boxer (D-CA), Chair of the EPW Committee, and Jay Rockefeller (D-WV) introduced the bill following the January 9, 2014, chemical spill in West Virginia that left thousands without drinking water for days. The bill would amend the Safe Drinking Water Act (SDWA) by adding "Part...