What's in MARQUETTE HEIGHTS's water?

MARQUETTE HEIGHTS's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 2,974 people get their water from it, across 1,139 connections.

How this compares nationally

MARQUETTE HEIGHTS has 27 violations on record in total, 0 of thems health-based - ranking it 9,864th of 12,903 systems by violation count, the 24th percentile nationally.

How MARQUETTE HEIGHTS compares within IL

IL's 560 covered systems average 5.0 health-based violations each; MARQUETTE HEIGHTS 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 MARQUETTE HEIGHTS is from 2025-02-07. Last reported to EPA: 05/27/2026.

What this data is and is not

MARQUETTE HEIGHTS'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. Between the utility's meter and MARQUETTE HEIGHTS's customers' taps is household plumbing, invisible to a system-level record ranked 9,864th of 12,903 by violation count. The guide to what this data misses covers that gap.