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Is Madison, IL tap water safe?

4 utilities serve Madison, by EPA’s records. Here is what EPA’s and Illinois’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

None of the 4 utilities serving Madison has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Illinois’s records.

IL American - Granite City, which serves the most people here, has 2 results above the health goal. The worst: Lead at 6.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

The water from IL American - Granite City is moderately hard to very hard depending on the source, 113 to 224 mg/L (6.6 to 13.1 grains per gallon). How Illinois’s water compares.

A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Madison’s ZIP codes, from EPA’s estimates.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in IL American - Granite City’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Madison

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Illinois certifies.

The 3 labs Illinois certifies closest to Madison, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Teklab, Inc.

    Collinsville, IL · about 8 miles

    Certified for bacteria

    (618) 344-1004

  • Pace Analytical Services, LLC - Hazelwood

    Hazelwood, MO · about 15 miles

    Certified for bacteria

    (314) 432-0550

  • Precision Water Lab

    Centralia, IL · about 55 miles

    Certified for bacteria

    (618) 533-0758

Illinois Department of Public Health: Coliform bacteria and nitrate testing for private wells, with sample bottles from your local health department, or from the department's nearest regional office where there is none. You mail the sample to the lab, and results come back through the health department. Well Sampling for Coliform & Nitrate, Illinois Department of Public Health.

All 30 certified labs for Illinois

ZIP codes in Madison

Which ZIP codes are in Madison: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Illinois Department of Public Health, certified water microbiology laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Madison

Other towns in Madison County with a page of their own.

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