December 22, 2021 – Commissioner’s order: Out of state licensed providers should read this memo from DPH Commissioner Manisha Juthani, MD and note the list of professions authorized by the Commissioner’s order

Per- and Polyfluoroalkyl Substances

Per- and polyfluoroalkyl substances are a group of manufactured chemicals that are collectively referred to as PFAS.  PFAS are used in a variety of products and applications including non-stick cookware, upholstered furniture, clothing, food packaging, and firefighting foam used to extinguish petroleum fires. These substances are not found naturally in the environment.  They do not break down easily and are extremely persistent in both the environment, especially in water, and the human body.  It is estimated that there are approximately 3,000 PFAS in production.  The terminology for this family of substances has been evolving.  The current accepted acronym for this family of chemicals is PFAS, but references to “perfluorinated compounds,” or PFC’s remain in older literature and fact sheets. The United States Environmental Protection Agency (EPA) has issued a life time health advisory (HA) of 70 parts per trillion (ppt) in drinking water for two PFAS: perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS) or the sum of PFOA+PFOS for public drinking water. The CT DPH Environmental and Occupational Health Assessment Program has found the U.S. EPA Health Advisory of 70 ppt to be protective of human health. Further, it has developed a CT DPH Drinking Water Action Level for drinking water in Connecticut in which the sum of five PFAS chemicals should not exceed the limit of 70 ppt. These five chemicals are PFOA and PFOS, plus perfluorononanoic acid (PFNA), perfluorohexane sulfonate (PFHxS), and perfluoroheptanoic acid (PFHpA). Beginning in 2013, the EPA required that all public water systems (PWSs) serving more than 10,000 individuals test for six PFAS compounds.  Connecticut’s large PWSs conducted multiple rounds of testing from 2013 to 2015 and did not detect PFAS in the water from their sources of supply.  These sources of supply provide drinking water for over 2.4 million daily customers in CT.  The Commissioners of the Department of Public Health and the Department of Energy and Environmental Protection have been asked by Governor Ned Lamont to lead an Interagency Task Force ( that he has established to address PFAS in Connecticut. The Task Force will deliver a PFAS Action Plan to Governor Lamont by October 1, 2019. This Action Plan will contain a comprehensive strategy to:

1. Minimize human health risk for Connecticut residents,
2. Minimize future releases of PFAS to the environment, and
3. Identify, assess, and clean up historic releases of PFAS to the environment.

Three Committees have been formed to address these focus areas. The Human Health Committee is being Co-Chaired by Lori Mathieu, Public Health Section Chief of the Drinking Water Section and Brian Toal, Interim Public Health Section Chief of the Environmental Health Section. A list service has been established to keep interested parties informed on the activities of the PFAS Task Force, please email to participate.

For more information and fact sheets, the following links are provided:

Basic Information

Health messaging

Circular Letters


Treatment Options Available

For further inquiries:

Questions about drinking water from Public Supplies and treatment options: DPH Drinking Water Section: 860-509-7333

Questions on drinking water from Private Wells and treatment options:
DPH Private Well Program, 860-509-8401.

Questions about PFAS Health Effects:
DPH Environmental & Occupational Health Assessment Program, (860) 509-7740

Questions on PFAS Sources:
DEEP Remediation Division, 860-424-3705