Missouri American Water is asking state regulators for a hefty boost to customer bills, filing a request on Wednesday with the Missouri Public Service Commission for roughly $179 million in new annual revenue tied to about $1.6 billion in water and wastewater upgrades across Missouri. If regulators sign off as requested, the company says the average St. Louis County household using about 5,900 gallons a month would see its monthly water bill jump by roughly $23, while customers outside St. Louis County using about 4,500 gallons would pay around $15 more. New rates could kick in as soon as June 2027 if the filing is approved.
What Missouri American Water Is Asking For
According to a company filing with the U.S. Securities and Exchange Commission, Missouri American Water is seeking approximately $179 million in annualized incremental revenue, not counting about $32 million in infrastructure surcharges, roughly $18 million of which still needs regulatory approval. The document lays out a requested 10.50% return on equity and a capital structure made up of about 50.3% equity and 49.7% long-term debt.
The company ties that revenue request primarily to an estimated $1.6 billion in capital projects planned from June 2025 through May 2028, telling regulators it needs the money to cover system investments across its service territory.
Estimated Customer Hit
In a statement posted on PR Newswire, Missouri American Water broke down the potential impact on typical households. The company says a St. Louis County residential customer using 5,900 gallons of water a month would pay about $23 more per month if the request is approved as filed. A typical customer outside St. Louis County, using 4,500 gallons, would pay about $15 more.
The same PR Newswire release says wastewater customers would see changes that depend on usage, with lower-use customers facing relatively modest shifts and higher-use and unmetered customers seeing larger adjustments. Overall, the filing covers service for more than 1.7 million people across 30 Missouri counties.
What The $1.6B Would Pay For
"We strategically plan and invest in our water and wastewater systems to help ensure they continue meeting the needs of our customers and communities," Missouri American Water President Rich Svindland said in the PR Newswire statement.
The company flags a long to-do list for that $1.6 billion, including replacement of roughly 140 miles of aging pipeline, upgrades to storage tanks, wells, pumps and hydrants, meter replacements, and continued replacement of lead service lines. Missouri American Water also points to treatment plant upgrades aimed at tackling PFAS and other contaminants of emerging concern. Projects named in the filing span communities from St. Louis County to Jefferson City, St. Joseph and Joplin.
Regulatory Timeline And Public Input
Under Missouri law, the Missouri Public Service Commission has up to 11 months from the date a formal rate case is filed to make a decision, according to consumer materials published by the Missouri Public Service Commission. Cases can sometimes settle earlier or involve interim rates while the full proceeding plays out.
Once the docket is set up, entries for Missouri American Water’s filing will appear on the commission’s online case system, where the public can see hearing dates, deadlines for written comments, and information for anyone who wants to formally intervene in the case through the Missouri Public Service Commission.
Local Context
The new rate push lands amid a broader regional debate over who should own and run local water systems and what customers ought to pay for them. Around St. Louis, Missouri American Water has been tied to a series of infrastructure projects and to conversations about possible municipal system sales.
Earlier this year, Hoodline reported that Missouri American quietly floated a multimillion dollar offer to buy Kirkwood’s water system, sparking public debate over rising rates and local control. For more on that proposal and the reaction it generated, see Hoodline’s coverage of the Kirkwood water bombshell.
Help For Customers And Next Steps
For customers already feeling squeezed, Missouri American Water points to several assistance options, including installment plans, budget billing, and its H2O Help to Others program. Details are available on the company’s customer information pages at Missouri American Water.
Residents who want to weigh in on the proposed rate hike or track hearing dates can visit the Missouri Public Service Commission’s website or reach the commission directly by email at [email protected] or by phone at 1-800-392-4211.
