Rochester Water Search Shapes Utility Costs

Rochester businesses should expect the cost of new water sources and treatment to flow into their utility bills over the coming decades.

Updated on Nov. 2, 2026 in Utilities

Bold flat-color vector editorial illustration of a concrete river water intake with a steel pipe and stacked storage tanks beyond, evoking Rochester's long-term water infrastructure costs. — Rochester Public Utilities is studying new water sources as state limits on its wells push future costs toward local businesses and ratepayers over the coming decades. AI Illustration. Upload story photo >

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Rochester Public Utilities is studying new drinking water sources as state limits constrain its existing wells, weighing the deep Mount Simon Aquifer and regional rivers. The work matters for businesses that depend on the utility's water supply and for ratepayers who will bear the infrastructure costs.

Why it matters

The Minnesota Department of Natural Resources banned new Jordan Aquifer wells in Rochester in 2024, forcing the utility to look elsewhere for supply. Customer consumption is projected to climb from 5 billion to an estimated 8.1 billion gallons per year by 2065, so the search for a sustainable source is now a long-term capital planning question.

The study models a roughly 1,500-square-mile area against a projected rise in consumption from 5 billion to 8.1 billion gallons per year by 2065. Rochester Public Utilities has already sacrificed two wells to stay in compliance with primary drinking water standards.

The players

Rochester Public Utilities

Municipal utility serving the city of Rochester, Minnesota, responsible for its electric and water systems.

Minnesota Department of Natural Resources

State agency that regulates groundwater withdrawals and issued the 2024 ban on new Jordan Aquifer wells in Rochester.

The details

Rochester Public Utilities is running computer models of three scenarios for future wells, weighing cumulative historical and projected groundwater withdrawals against how long each source can be sustained. The candidates include the Mount Simon Aquifer, the Zumbro River, and the Mississippi River. If the city relies on a surface water source, added treatment would be required before the water reaches customers.

2024: Minnesota DNR banned new Jordan Aquifer wells in Rochester.
Nov. 23: Next report scheduled at a Rochester City Council study session.
December: Planned discussions with Minnesota DNR staff.
Early 2027: Work begins on estimating infrastructure needs and costs.
2065: Projected water consumption reaches 8.1 billion gallons annually.

Market Landscape

The search follows the Minnesota Department of Natural Resources' 2024 ban on new Jordan Aquifer wells, which has shaped Rochester's options for more than a century of local drinking water. Utilities facing comparable state groundwater limits are similarly moving toward surface water and deeper aquifers, which carry added treatment and infrastructure costs.

Businesses in Rochester that rely on municipal water should expect potential rate increases as the utility funds new sources and treatment. Operators should track the utility's monthly board updates for cost signals tied to the long-term plan.

The takeaway

Operators reliant on Rochester's water should treat the long-term supply plan as a cost variable to model over the coming decades. Monitor the Rochester City Council study session on Nov. 23 and the utility's monthly board updates for the infrastructure cost estimates expected to follow.

What happens next

Rochester Public Utilities' Public Utility Board is expected to receive monthly updates on the long-term water plan, and the next report is slated for the Rochester City Council study session on Nov. 23. Work on estimating infrastructure needs and costs is scheduled to begin in early 2027.