Is WARRENVILLE's water safe to drink?

WARRENVILLE's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 12,350 people get their water from it, across 5,037 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, WARRENVILLE ranks 9,600th by violation burden (26th percentile) - 51 violations total, 0 health-baseds.

How WARRENVILLE compares within IL

IL's 560 covered systems average 5.0 health-based violations each; WARRENVILLE carries 0, not more than typical for the state. 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 WARRENVILLE is from 2025-01-07. Last reported to EPA: 05/27/2026.

What this data is and is not

Everything on this page is WARRENVILLE's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 0 health-based violations on file for WARRENVILLE - 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.