Per and Polyfluoroalkyl Substances (PFAS)

PFAS are a group of chemical compounds that have been in use since the 1940's. 

What products potentially contain PFAS?

  • Non-stick cookware
  • Stain-resistant fabrics and carpeting
  • Water-resistant clothing
  • Firefighting foam
  • Food packaging
  • And more

Possible health effects from PFAS exposure

  • Decreased fertility
  • Developmental effects or delays in children
  • Increased risk of some cancers
  • Interferes with the body's immune system
  • Interferes with the body's hormones
  • Increased cholesterol levels and risk of obesity

The Connecticut Department of Public Health updated its drinking water Action Levels for PFAS in June 2022.  The new action levels are as follows:

  • PFOS (perfluorooctane sulfonic acid) - 10 parts per trillion
  • PFNA (perfluorononanoic acid) - 12 parts per trillion
  • PFOA (perfluorooctanoic acid) - 16 parts per trillion
  • PFHxS (perfluorohexane sulfonic acid) - 49 parts per trillion

Action levels are used as guidance for determining potability but are not enforceable.  The Environmental Protection Agency has not set enforceable Maximum Contaminant Levels (MCL's) for these compounds. Here is the link for laboratories certified by the State of Connecticut to test for PFAS.  To learn more about PFAS please visit the EPA's web site.