Is GLENDALE HEIGHTS's water safe to drink?
GLENDALE HEIGHTS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 33,176, over 8,772 connections.
GLENDALE HEIGHTS's record against the rest of the country
Out of 12,903 systems in this dataset, GLENDALE HEIGHTS ranks 8,433th by violation burden (35th percentile) - 7 violations total, 1 health-based.
How GLENDALE HEIGHTS compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - GLENDALE HEIGHTS's 1 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for GLENDALE HEIGHTS is from 2024-01-10 (health-based: 1991-01-10). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
GLENDALE HEIGHTS'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:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
GLENDALE 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. This record - 1 health-based violation on file for GLENDALE HEIGHTS - 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.