On June 15, 2022, the US EPA issued revised health advisories for four PFAS based on new information on the life-long exposure risk to these compounds. CT DPH also issued revised guidance on June 15, 2022 with the issuance of Action Levels for four PFAS compounds.
Below are Aquarion's sampling results for the Newtown Regional System in Newtown and Bethel, Connecticut. The Chimney Heights Well, which serves part of the Bethel portion of the Newtown Regional System, was sampled four times prior to September 2022 and found to be below the newly-established CT DPH action levels. The September 2022 result for PFOS was 11 parts per trillion (ppt), which is above the action level of 10 ppt for PFOS.
The Newtown Regional System (PWS ID CT0970011) in Newtown and Bethel, Connecticut consists of two groundwater sources:
The Chimney Heights Well partly supplies the Bethel area of the Newtown Regional System.
See below for an action plan summary for the Newtown Regional System in Newtown and Bethel, Connecticut:
Aquarion will remain vigilant about this important issue and will continue to share test results with our customers and state and local officials. We will also continue to work with public health agencies and drinking water associations to ensure the protection of our drinking water supplies, and delivery of high-quality water to our customers.
The table below includes historical sampling results for the Newtown Regional System, highlighting individual results above the new PFOS Action Level of 10 ppt:
Learn more about PFAS and the Connecticut Department of Public Health's Drinking Water Section Strategy at ct.gov.Learn More