What's in HERRIN's water?

HERRIN's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 12,747 people get their water from it, across 6,127 connections.

Ranked against every other system in this dataset

6 total violations and 0 health-based ones put HERRIN at the 15th percentile nationally for violation burden, rank 10,948 of 12,903.

Against the IL average

IL's 560 covered systems average 5.0 health-based violations each; HERRIN 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

HERRIN's most recent violation on record is dated 2025-02-07. Last reported to EPA: 05/27/2026.

What HERRIN's record does not cover

Everything on this page is HERRIN's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and HERRIN's customers' taps is household plumbing, invisible to a system-level record ranked 10,948th of 12,903 by violation count. The guide to what this data misses covers that gap.