Illinois EPA Notifies 47 Community Water Systems of Right-to-Know Requirements Triggered by Recent Rulemaking
SPRINGFIELD – The Illinois Environmental Protection Agency (Illinois EPA) is notifying the owners and operators of 21 Community Water Systems (CWSs) that there has been a detection of one or more Per- and Polyfluoroalkyl Substances (PFAS) in the most recent water sampling of those specified CWSs at levels exceeding newly enacted groundwater quality standards. The Illinois EPA is also notifying owners and operators of 26 connected CWSs that obtain water from CWSs that had one or more PFAS exceedances. Existing state Right-to-Know laws require a CWS to notify all end users when groundwater contamination poses a threat of exposure to the public above the Class I groundwater quality standards. This law establishes methods of notification and strict time frames for providing notice. PFAS are a group of several thousand human-made chemicals that are manufactured for their oil and water-resistant properties. Since the 1940s, PFAS have been used in a wide range of consumer products,