Water and Sewer
Proposition W, the Water Line Insurance Program, passed in the April 6, 2021, Municipal Election. The fee related to this program will not be collected until December, while the new program does not take effect until January 2022. Learn more about the program.
The City of O'Fallon Water and Sewer Department provides water and sewer service to parts of O'Fallon City limits. Use our Address Look-Up to determine services for a selected address.
Water and Sewer emergency, main break or sewer backup?