Water Study

Slides from Public Information Meeting, October 22, 2025

Municipal Water Supply Public Hearing

The City of Pewaukee will hold a Public Hearing on Monday, December 15th, at the Common Council meeting with a presentation of the Water Supply Service Area Plan. The presentation will provide source water options and outline the variety of factors that have been considered in the evaluation. The report will highlight which options appear to be most favorable to the community.

Please join us at the public hearing on Monday, December 15, 2025, in the City Hall Council Chambers, starting at 6:30 p.m.

Background: Municipal water is currently supplied from a combination of shallow aquifer and deep aquifer wells. Some shallow wells have levels of PFAS (per- and polyfluoroalkyl substances, sometimes referred to as “forever chemicals”) that will require new treatment systems to comply with new regulations. Some deep wells are already treated to remove radionuclides, and additional deep wells may require new treatment in the future. Before making significant investments in these treatment systems, the City has conducted a study to consider the long-term viability of its wells compared to other alternative water sources.

While the City’s water supply is currently compliant with the Wisconsin Department of Natural Resources PFAS regulations, the cost of treating the existing wells for radium, PFAS, and potential future contaminants will continue to increase. The City remains committed to identifying the best long-term solution for the community.