Skip to Content

KWD remains committed to keeping the water flowing into your homes and businesses during the COVID-19 pandemic. More Info


PFAS Frequently Asked Questions

What is PFAS?

Per and Poly Fluoroalkyl Substances (PFAS) are a class of thousands of different man-made chemicals that have been manufactured and used in a variety of commercial products since the 1940s.  According to the US Environmental Protection Agency, these chemicals are very persistent in the environment and in the human body – meaning they do not break down and they can accumulate over time.

What types of products have PFAS?

PFAS has been used in the production of carpets, clothing, fabrics for furniture, cosmetics, paper packaging for food, and other materials (e.g., cookware) that are resistant to water, grease, or stains. They are also used in aqueous firefighting foam and in several other industrial processes. Because these chemicals have been used in such a wide array of consumer products, most people have been exposed to them.

PFAS in Drinking Water

The discovery of PFAS contamination in private wells in Fairfield, Maine in 2020 heightened public awareness of PFAS compounds in commercial products and PFAS contamination in the environment and drinking water. 

How much is too much PFAS in drinking water?

In June 2021, the Maine Legislature set a regulatory standard of 20 parts per trillion (also referred to as 20 nanograms per liter, or ng/L). This standard applies to the cumulative levels of six different PFAS compounds.

Is there PFAS in Kennebec Water District’s Water?

Although there was no regulatory requirement for ongoing PFAS testing prior to June 2021, KWD proactively began testing for PFAS in 2019. Water test results show PFAS levels in KWD’s water below 8 parts per trillion (less than half of the Maine regulatory standard).

Health regulatory limits are generally set at concentrations where no identified adverse health effect is seen. In cases where PFAS levels are greater than 20 parts per trillion in drinking water, action should be taken to reduce the amount of PFAS taken in.

What do I need to do?

Because PFAS levels in KWD’s water are well below the lowest established health thresholds in the country, you do not need to take any action.  KWD will inform the public if PFAS levels increase or other regulatory limits are established.

What additional steps will KWD be taking?

As part of KWD’s commitment to ensure the water served continues to meet all regulatory health standards, KWD will continue to monitor PFAS levels in the water we serve to our customers.  PFAS results will be provided to the public as part of our annual water quality reporting available at or by contacting our business office. 

The evolving public health crisis in Fairfield highlights the need to prevent environmental contamination, especially sources of drinking water.  KWD will continue to take appropriate action to reduce the risk of contamination entering our water source.

For More Information

More information about PFAS in drinking water can be found on the US Environmental Protection Agency’s website at: