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Illinois EPA issues health advisory for 6:2 Fluorotelomer Sulfonic Acid (6:2 FTS)
Illinois PFAS Health Advisory ProgramIllinois Environmental Protection AgencyIllinois
Announced
Nov 24, 2025
Description
Illinois EPA issued a new health advisory for 6:2 Fluorotelomer Sulfonic Acid (6:2 FTS), adding this PFAS compound to the state's list of regulated substances. Health advisories provide guidance levels for drinking water concentrations at which no adverse health effects are expected and remain in effect until enforceable groundwater quality standards are established. Illinois now has health advisories for nine PFAS compounds total. Compliance teams should monitor for future transition to enforceable groundwater standards.
Sources
Key Findings
Illinois EPA issues health advisory for 6:2 Fluorotelomer Sulfonic Acid (6:2 FTS)
November 24, 2025 Kim Biggs, Illinois EPA FOR IMMEDIATE RELEASE 217-558-1536 kim.biggs@illinois.gov Illinois EPA Issues Health Advisory for 6:2 Fluorotelomer Sulfonic Acid Chemical Identified Through Per- and Polyfluoroalkyl Substances (PFAS) Sampling of Community Water Supplies Springfield – Illinois Environmental Protection Agency Acting Director James Jennings announced the issuance of a health advisory for the PF