ST. CHARLES, ILLINOIS • DUPAGE & KANE COUNTIES
St. Charles’ official 2026 Water Quality Report says the City uses groundwater from two aquifers. That published municipal-system context is a useful place to begin, but it is not a test of the water or plumbing at your St. Charles 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
The report states that the City uses groundwater from two separate aquifers: the St. Charles sand and gravel aquifer and the deeper Galesville sandstone formation.
Source: City of St. Charles 2026 Water Quality Report (2026)
LOCAL WATER NUMBERS
This report does not publish a hardness figure. Ask us to test your water instead of using a guessed number.
This Consumer Confidence Report describes the municipal water system and reported sampling. It does not establish water conditions, plumbing materials, hardness, contaminants, compliance, or treatment needs at an individual home; service lines, fixtures, plumbing, and local circumstances can differ.
Source: City of St. Charles 2026 Water Quality Report (2026)
HOMES IN THIS AREA
The 2020-2024 ACS estimate puts the median year built for St. Charles housing units at 1984, 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 goals, water setup, and the published St. Charles context before recommending a whole-home configuration. A municipal report alone is not a diagnosis for a particular property.
Local Questions
Town FAQ source: City of St. Charles 2026 Water Quality Report (2026)
The City’s 2026 Water Quality Report says St. Charles uses groundwater from two separate aquifers: the St. Charles sand and gravel aquifer and the deeper Galesville sandstone formation. This is municipal-system information, not a test at a particular address.
The report identifies seven active community water-supply wells: wells 3, 4, 7, 8, 9, 11, and 13. The report’s system information does not establish conditions within a specific home.
The report says it summarizes water provided in the prior calendar year and its tables cover contaminants that were tested and detected and those tested for but not detected. It also says sampling frequency varies by contaminant type and regulation.
No. It describes the municipal system and reported sampling, not water conditions, plumbing materials, hardness, contaminants, compliance, or treatment needs at an individual home. We discuss your goals and setup before recommending a whole-home option.
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