ELMHURST: EPA violation history, explained

ELMHURST has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 45,000 people get their water from it, across 15,316 connections.

ELMHURST's record against the rest of the country

7 total violations and 2 health-based ones put ELMHURST at the 48th percentile nationally for violation burden, rank 6,691 of 12,903.

Against the IL average

ELMHURST's 2 health-based violations sit within the IL average of 5.0, across 560 systems statewide. See the lead and copper guide for why lead counts differently.

Most recent violation on record

ELMHURST's most recent violation on record is dated 2012-01-07, with the most recent health-based one dated 1988-01-09. Last reported to EPA: 05/27/2026.

The concern categories on record

ELMHURST's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:

• Radionuclides - flagged from: Combined Radium (-226 and -228)

The most severe category on record is radionuclides, which points toward a reverse osmosis-class filter if you want to address it directly.

What ELMHURST's record does not cover

This is what ELMHURST reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and ELMHURST's customers' taps is household plumbing, invisible to a system-level record ranked 6,691th of 12,903 by violation count. The guide to what this data misses covers that gap.