Missouri American Water filed a rate request with the Missouri Public Service Commission to support approximately $1.6 billion in water and wastewater system investments from June 2025 through May 2028. The investments include replacing about 140 miles of aging pipeline, upgrading treatment facilities, and addressing contaminants like PFAS. If approved, the average residential water bill in St. Louis County would increase by about $23 per month, while customers outside St. Louis County would see a roughly $15 increase. The company serves more than 1.7 million people across 30 counties. The review process could take up to 11 months, with new rates potentially taking effect in June 2027.
American Water WorksRate request to recover $1.6B investments, if approved, will increase revenue and support infrastructure spending.
Missouri American Water is the subsidiary filing the rate request to recover $1.6B investments, directly benefiting from potential rate increases.