Herrin, IL Water Quality
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 572 covered systems average 5.1 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.