Wilmette Water Treatment

Water Softener and Filtration in Wilmette, IL

Wilmette’s 2025 Annual Water Quality Report says the Village receives raw water from Lake Michigan and treats it at the Wilmette Water Plant. Windy City Water Pros can discuss whole-home water-treatment options after learning about your goals and evaluating the installation at your Wilmette home. A utility report describes the public system. It is not a reading from one home's tap, where plumbing, fixtures, sample location, and existing treatment can change the experience.

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WATER SUPPLIER

Wilmette's published water source

The report states that the Village receives raw water from Lake Michigan and treats it at the Wilmette Water Plant on the lakefront before pumping it into the distribution system.

Source: Village of Wilmette 2025 Annual Water Quality Report (2025)

LOCAL WATER NUMBERS

What Wilmette's report lists

For 2025 lead sampling, the report lists a 90th-percentile result of 9.9 ppb, two sites over the 15 ppb action level, and 'No' in the violation column.
For 2025 chlorine, the report lists a highest level detected of 1.2 ppm, a 1.2–1.2 ppm range, and 'No' in the violation column.

This report does not publish a hardness figure. Ask us to test your water instead of using a guessed number.

This annual Consumer Confidence Report describes the municipal system and system-level sampling results. It does not establish water conditions, plumbing materials, or treatment needs at an individual home.

Source: Village of Wilmette 2025 Annual Water Quality Report (2025)

HOMES IN THIS AREA

Wilmette's housing age context

The 2020-2024 ACS estimate puts the median year built for Wilmette housing units at 1957, a mid-century housing era. That is context for discussing plumbing access, fixture age, and updates at a specific address, not a condition report for any one home.

Source: U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates, Table B25035 (2024)

MORE LOCAL SERVICE AREAS

Nearby towns we serve

Evanston Glenview Kenilworth Northfield Skokie

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Treatment Options

Whole-home and kitchen drinking-water options

We match the approach to your home, goals, plumbing, and available space—not to a one-size-fits-all assumption about Wilmette water.

Whole-home water softeners for homes seeking a softening solution.
Whole-home carbon filtration for homeowners who want carbon-filtration options.
Salt-free conditioning where it fits the home and the homeowner’s goals.
Well-water treatment only after laboratory results or a confirmed field test.
Kitchen tank or tankless reverse osmosis, available only as an add-on to a whole-home installation.

Local Questions

Wilmette water-treatment FAQs

Town FAQ source: Village of Wilmette 2025 Annual Water Quality Report (2025)

Where does Wilmette’s municipal water come from?

Wilmette’s official 2025 Annual Water Quality Report states that the Village receives raw water from Lake Michigan and treats it at the Wilmette Water Plant on the lakefront before pumping it into the distribution system.

What does the 2025 Wilmette report list for lead sampling?

The report lists a 2025 lead 90th-percentile result of 9.9 ppb, two sites over the 15 ppb action level, and 'No' in the violation column. This system-level report is not a test of water at an individual Wilmette home.

What does the current Wilmette report say about chlorine?

Wilmette’s 2025 report lists a chlorine highest level detected of 1.2 ppm, a 1.2–1.2 ppm range, and 'No' in the violation column.

Can the Wilmette report tell me which system my home needs?

No. The report summarizes the municipal system and cannot determine conditions or treatment needs at a particular home. We discuss your goals, plumbing, available space, and relevant water information before considering whole-home options.