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Is Cortland, IL tap water safe?

Cortland serves Cortland, by EPA’s records. Here is what EPA’s and Illinois’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Cortland serves Cortland. In EPA’s and Illinois’s records it has 1 result above the health goal, and no health-based violation since 2016.

The worst: Uranium at 0.15 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

The water from Cortland is hard to very hard depending on the source, 130 to 300 mg/L (7.6 to 17.5 grains per gallon). How Illinois’s water compares.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

Water testing near Cortland

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

  • Suburban Laboratories, Inc.

    Geneva, IL · about 15 miles

    Certified for bacteria

    (708) 544-3260

  • Eurofins Built Environment Testing Central-Chicago

    Naperville, IL · about 24 miles

    Certified for bacteria

    (331) 330-2066

  • Phigenics Analytical Services Laboratory

    Warrenville, IL · about 24 miles

    Certified for bacteria

    (844) 850-4087

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 Cortland

Which ZIP codes are in Cortland: 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 Cortland

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

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