Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals found in various consumer products. Due to their persistence in the environment, PFAS have become a concern for many communities, including Stillwater.
Recognizing the potential health risks associated with PFAS, the City of Stillwater has been proactive in monitoring and mitigating these contaminants. The city’s water supply is sourced from the Prairie Du Chien-Jordan and Jordan aquifers through eight wells, with water treated using chlorine and fluoride to meet health standards.
In December 2025, construction began on a new PFAS treatment facility at Well #10. This project includes installing new sanitary sewer manholes, raw and finished water piping connections, and concrete footings for the treatment building. Despite winter conditions, the project is progressing, with completion expected by May 2026.
The city emphasizes that while PFAS are emerging contaminants, current levels in Stillwater’s drinking water do not pose immediate health risks. However, ongoing research and monitoring are essential to ensure long-term safety.
Residents are encouraged to stay informed by signing up for email updates on drinking water quality through the city’s official website.