Is WILMETTE's water safe to drink?

WILMETTE's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 27,087, over 9,030 connections.

How this compares nationally

13 total violations and 0 health-based ones put WILMETTE at the 21th percentile nationally for violation burden, rank 10,247 of 12,903.

How WILMETTE compares within IL

WILMETTE's 0 health-based violations sit within the IL average of 5.0, across 560 systems statewide. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

The last violation EPA has on record for WILMETTE is from 2025-01-10. Last reported to EPA: 05/27/2026.

What this data is and is not

WILMETTE's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 0 health-based violations on file for WILMETTE - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.