HIGHLAND PARK: EPA violation history, explained
HIGHLAND PARK has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 30,176 people through 10,436 service connections.
HIGHLAND PARK's record against the rest of the country
Out of 12,903 systems in this dataset, HIGHLAND PARK ranks 6,924th by violation burden (46th percentile) - 4 violations total, 2 health-baseds.
Against the IL average
HIGHLAND PARK's 2 health-based violations sit within the IL average of 5.0, across 560 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
HIGHLAND PARK's most recent violation on record is dated 2005-01-04, with the most recent health-based one dated 2005-01-04. Last reported to EPA: 05/27/2026.
The concern categories on record
HIGHLAND PARK'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Interim Enhanced Surface Water Treatment Rule
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What HIGHLAND PARK's record does not cover
This is what HIGHLAND PARK 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. This record - 2 health-based violations on file for HIGHLAND PARK - 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.