skip to main content

Information for Customers in Beechwood Community of Killingworth

Most current PFAS test results:

The most recent level detected in tap water was 13 part per trillion, which continues to be well below the US EPA and Connecticut Department of Public Health Drinking Water and Health Advisory levels of 70 ppt.

The sample was collected on April 5 and results reported to Connecticut Water on April 19.


Information provided to Beechwood customers on March 23, 2021

Dear Beechwood Water Customer:

At Connecticut Water, we know that water touches everything we care about. Our team of 220 dedicated, highly trained professionals is committed to providing you with a reliable supply of high quality water and responsive service. We know the most important thing we do each and every day is to provide clean, safe drinking water so families can trust the water we provide will contribute to their good health.

Connecticut Water, along with other water utilities in the state, have followed guidance of the Connecticut Department of Public Health (DPH) to voluntarily test for a group of substances referred to as PFAS in drinking water.  We have completed testing for per- and polyfluoroalkyl substances referred to as PFAS at the Beechwood system and wanted to share that PFAS was detected in the groundwater sources in the system, but with the treatment that is in place the water delivered to customers in Beechwood is well below the EPA Health Advisory and CT DPH Drinking Water Action Level.

What are PFAS?

You may have heard about PFAS in the news. PFAS is an abbreviated term for per-and polyfluoroalkyl substances, a large group of man-made chemicals that have been manufactured and used around the world since the 1940s. You likely come in contact with PFAS almost every day in the form of:

  • nonstick cookware
  • food packaging
  • stain/water repellant fabrics
  • firefighting foam

Of these chemicals, the most extensively produced and studied have been PFOA and PFOS. Due to their presence in so many of our everyday products, and in the manufacturing of those products, PFAS have made their way into some soils and waters. We, along with public water systems across the country, have been testing for the presence of these chemicals in drinking water.

What is the Drinking Water Standard?

There is not currently an established state or federal drinking water regulation for PFAs in drinking water. The United States Environmental Protection Agency (EPA) and regulators in Connecticut are working to determine appropriate standards for PFAS.  EPA has established a Health Advisory limit of 70 parts per trillion (ppt) for a combination of PFAS in drinking water. The Connecticut DPH set a Drinking Water Action Level for PFAS of 70 ppt which is actually more stringent than the EPA Health Advisory as includes test results for more PFAS components than the EPA.  A part per trillion is equivalent to about 30 seconds out of every million years.


What is the Supply for the Beechwood system?

Water for customers in the Beechwood community comes from a mix of 3 separate groundwater sources (wells) on the Beechwood property. The wells are directed to a treatment system which treats all water from the wells before it goes to customers.  The treatment system, which was originally installed because of naturally occurring uranium found in the wells, uses ion exchange technology, which also treats PFAS.   

With that treatment in place all the water delivered to Beechwood customers has been treated and is well below both the EPA Health Advisory and CT DPH Drinking Water Action Level for PFAS. The levels found in the individual wells before and after the treatment system are as follows:

Treated Water Sent   to Customers

Amount Detected

Untreated Well  Water Source

Amount Detected

EPA/DPH guidelines*

Samples collected after water treatment. This represents the water being sent to customer taps

10 ppt

Untreated Well 2

36 ppt

70 ppt

Untreated Well 3

61 ppt

70 ppt

Untreated Well 4

146 ppt

70 ppt

 *EPA/DPH guidelines apply only to the treated water and not the individual wells


Is It Safe to Drink My Water?

The water delivered to your tap meets all state and federal standards for safe drinking water and you may continue to drink it.   You can learn more about the drinking standards in the annual water quality report for your system which is available on our website at

What is the Company Doing to Ensure the Safety of Our Drinking Water?

Connecticut Water has proactively notified the Town, local health officials, DPH and Connecticut Department of Energy & Environmental Protection of the PFAS levels detected at the untreated wells.  The state agencies and the Town are investigating the potential source or activities in the area that might have contributed to PFAS in the wells.   In addition, the Company will conduct ongoing water quality testing and report to DPH to ensure the treatment in the Beechwood system continues to perform and effectively treat the water.   If further guidance is developed by EPA or DPH, the Company will take whatever actions are necessary to continue to meet the standards.


Where can Customers Learn More About PFAS in Drinking Water?

Connecticut Water held an informational session for Beechwood residents on Thursday, March 25th at 6:00 p.m. via Zoom. The session was designed to answer any  questions about PFAS, the water treatment process and your water quality.

Our website also has additional information about PFAS, what products they can be found in and how they make their way to our ecosystems where they have the potential to reach drinking water.   Find that information at

Providing clean safe drinking water to our customers and communities is our highest priority. Our Connecticut Water team appreciates the trust you put in us every day when you turn on the tap, and we are committed to honoring that trust and delivering you a world-class product. If you have further questions, please give our customer service team a call at 1-800-286-5700 or send an e-mail to