The U.S. EPA has published the Fifth Unregulated Contaminant Monitoring Rule (UCMR 5). UCMR 5 requires sample collection for 30 chemical contaminants between 2023 and 2025 using analytical methods developed by EPA and consensus organizations. This action provides EPA and other interested parties with scientifically valid data on the national presence of these contaminants in drinking water. PFAS are included in the UCMR.
PFAS Part of EPA’s Fifth UMCR Rule
On March 11, 2021, the EPA proposed the fifth Unregulated Contaminant Monitoring Rule (UCMR 5) UCMR 5, which will require sample collection for 30 chemical contaminants, including PFAS. The testing will occur between 2023 and 2025 using analytical methods developed by EPA and consensus organizations.