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Is Rock Island, IL tap water safe?

2 utilities serve Rock Island, 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

Neither of the 2 utilities serving Rock Island has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Illinois’s records.

Rock Island, which serves the most people here, has nothing above a health goal in EPA’s and Illinois’s records. That data covers what its report lists, not everything.

The water from Rock Island is very hard, 215 mg/L (12.6 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 Rock Island’s ZIP codes, from EPA’s estimates.

Water testing near Rock Island

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 Rock Island, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Quad City Metallurgical Laboratory, Inc.

    Davenport, IA · about 11 miles

    Certified for bacteria

    (563) 386-7827

  • QC Analytical Services, LLC

    Le Claire, IA · about 17 miles

    Certified for bacteria

    (563) 289-3373

  • Daily Laboratories

    Peoria, IL · about 67 miles

    Certified for bacteria

    (309) 691-4513

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 Rock Island

Which ZIP codes are in Rock Island: 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 Rock Island

Towns nearby with a page of their own.

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