HANOVER PARK, ILLINOIS • DUPAGE & COOK COUNTIES
Hanover Park's official 2025 Water Quality Report says the Village normally provides 100% Lake Michigan water through the Northwest Suburban Municipal Joint Action Water Agency and the City of Chicago. That local public-system context is a useful starting point, but it is not a test of water or plumbing at your Hanover Park 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
Under normal operating conditions, the Village reports that it receives 100% Lake Michigan water from the Northwest Suburban Municipal Joint Action Water Agency through the City of Chicago; its groundwater wells are emergency backup sources.
LOCAL WATER NUMBERS
This report does not publish a hardness figure. Ask us to test your water instead of using a guessed number.
This municipal Consumer Confidence Report describes the public water system and reported monitoring. It is not proof of water conditions, contaminants, hardness, plumbing materials, treatment needs, or compliance at a particular Hanover Park home.
HOMES IN THIS AREA
The 2020-2024 ACS estimate puts the median year built for Hanover Park housing units at 1976, a late twentieth-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.
MORE LOCAL SERVICE AREAS
Treatment Options
We discuss your household priorities, plumbing setup, and water goals before recommending a whole-home approach. The Village report alone does not establish what treatment, if any, a specific Hanover Park property needs.
Local Questions
Hanover Park's official 2025 report says the Village normally provides 100% Lake Michigan water. It says the Village receives that water from the Northwest Suburban Municipal Joint Action Water Agency through the City of Chicago.
The report says Hanover Park maintains four groundwater wells as an emergency source. During an April 2025 maintenance shutdown by its primary provider, the report says those wells supplied 0.005% of the year's total water production.
The report says the Village did not complete all required disinfection-byproduct monitoring or testing during December 13–27, 2025 because of a contract laboratory calibration failure. It says the Village collected resamples and continued to follow the Illinois EPA monitoring schedule.
No. The report describes Hanover Park's public system and reported monitoring; it is not proof of water conditions, hardness, contaminants, plumbing materials, or treatment needs at an individual Hanover Park home.
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