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Is Crestwood, IL tap water safe?

Crestwood serves Crestwood, 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

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

The worst: Lead at 1.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

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.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Crestwood’s water.

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Every claim, and more filters, in the full report

Water testing near Crestwood

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.

No lab Illinois certifies is within 75 miles of Crestwood on the state’s list. Some take samples by mail; the state’s page lists them all.

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 Crestwood

Which ZIP codes are in Crestwood: 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.

Near Crestwood

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

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