Bloomington weighs costly water options as pipes and growth add pressure
Bloomington officials are studying water-source options with rough costs as high as $175 million while aging pipes and growth plans add pressure.
Bloomington is not choosing a new water source yet, but city officials have put several expensive long-term options in front of the public as growth, drought planning and aging infrastructure add pressure to the local water system.
According to a June 17 report from 25News Now, the discussion followed a Monday night presentation on future water supply. The City of Bloomington’s meeting page lists a Committee of the Whole regular session for June 15, 2026, and WGLT‘s same-day report said no formal votes were taken.
For residents, the practical issue is not just where water may come from decades from now. It is also how Bloomington pays for major infrastructure, how quickly it replaces older mains and service lines, and whether utility planning keeps pace with housing, commercial and industrial development.
What Bloomington uses now
Bloomington currently relies on Lake Bloomington and Evergreen Lake as its two water sources, according to local reporting. The City of Bloomington Water Department says it provides drinking water for Bloomington and about half of McLean County residents outside the city, while also offering water-related resident services such as leak information and meter data requests.
25News Now reported that Bloomington currently pumps about 10 million gallons per day, serves about 32,500 meters and has a treatment plant capacity of 24.5 million gallons per day. Those figures matter because any new source would have to fit into a system that already includes reservoirs, treatment capacity, distribution mains and household-level service connections.
The three options now under study
The first option discussed publicly is groundwater from the Mahomet Aquifer. 25News Now put the rough cost at about $75 million to $125 million and reported that city water director Brett Lueschen described the option as potentially providing about 30 million to 35 million gallons per day. WGLT’s June 15 account of the same planning discussion described the aquifer option as possibly adding 15 million to 30 million gallons per day, so readers should treat the yield numbers as preliminary presentation estimates rather than final design guarantees.
25News Now also reported that the city would need an additional treatment plant so groundwater and surface water are treated separately. Any west-side service changes tied to that option should be read as conditional; no source has been selected.
The second option is drawing water from the Illinois River. That alternative was described as the most expensive of the three, with a rough estimate of about $175 million. According to the local report, officials framed it as potentially more feasible if Bloomington expands commercial and industrial development. That is a planning argument, not an adopted project budget.
The third option is dredging portions of Lake Bloomington and Evergreen Lake. The estimate reported publicly was roughly $45 million. Dredging would not add as much supply as the other alternatives, according to 25News Now, but officials said it could improve storage capacity and water quality and may be needed for reservoir maintenance.
Old infrastructure is part of the water question
The supply discussion comes alongside a more immediate infrastructure problem: water loss. 25News Now reported that some Bloomington meters and pipes date to the 1800s and that officials attributed about 30% water loss to leaks and aging infrastructure.
WGLT reported the same issue in annual terms, saying about 32% of water pumped through the distribution system was not measured by meters from June 2024 to June 2025, compared with about 25% from June 2025 to June 2026. The numbers point to the same basic concern for residents: even before a new source is chosen, Bloomington has costly work to do inside its existing system.
The city has been working on several related efforts, including advanced leak detection, Neptune meters, lead-service-line replacement and water-main replacement along U.S. Route 51, according to local reporting and city water information. For homeowners and renters, those projects can affect service reliability, construction disruption and long-term utility costs.
Why development makes the timing important
Bloomington’s water planning is also unfolding during a stretch of visible housing and development activity. WGLT reported June 10 that Mayor Dan Brady pointed to more than $315 million in public and private investment projects, with city permits up sharply compared with the same time last year.
That report said Bloomington had more than 550 housing units either permitted or in planning, including single-family homes and apartment projects. It also identified projects such as Empire Flats on Route 9 and downtown residential redevelopment. Those projects do not, by themselves, prove Bloomington faces an immediate water shortage. They do show why long-range capacity planning matters for builders, employers, renters, homeowners and taxpayers.
The next reported step is technical: updating the safe-yield analysis for Bloomington’s lakes. Residents should watch for whether that analysis leads to formal engineering studies, a preferred water-source recommendation, funding proposals, possible rate discussions or future council direction. For now, the central point is narrower: Bloomington is studying costly options, not approving one.
Sources
- 25News Now report on Bloomington water-source options
- WGLT report on Bloomington water-supply planning
- City of Bloomington Water Education page
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