State Regulations for PFAS in Drinking Water

This guide outlines the state-by-state regulations regarding per- and polyfluoroalkyl substances (PFAS) in drinking water. It details the maximum contaminant levels (MCLs) and guidance levels for specific PFAS compounds, such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), that have been enacted or proposed by various states. The document highlights the challenges faced by industries due to the absence of a federal standard, leading to a patchwork of state regulations. It also notes that some states, including Rhode Island and Washington, are actively proposing new regulations. The guide emphasizes the importance of understanding these regulations for businesses that may discharge PFAS compounds into drinking water sources. It concludes with a discussion on the discrepancies in regulatory levels across states, which can range significantly, impacting compliance and operational decisions for affected industries.