The City of St. Charles is nearing completion of phase one of the Well No. 8 Water Treatment Plant (WTP) Rehabilitation Project, which includes upgrades to piping, valves, and treatment systems—specifically ion exchange and HMO filtration processes that support radium removal and hardness control. These improvements build on the City’s already high-performing water system and help maintain consistent water quality.

Phase two will begin this fall and will include installation and commissioning of the Well No. 14 pump, replacement of the pump at Well No. 8, and electrical and other minor facility upgrades to WTP No. 8. Once complete, these enhancements will increase the available water supply, improve operational flexibility, and strengthen long-term system reliability for the community.