What's in HUNTLEY's water?
HUNTLEY had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 28,495 people through 12,956 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, HUNTLEY ranks 1,254th by violation burden (90th percentile) - 24 violations total, 15 health-baseds.
How HUNTLEY compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - HUNTLEY's 15 is above 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 HUNTLEY is from 2025-01-07 (health-based: 2025-01-07). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
HUNTLEY'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); Revised Total Coliform Rule
- Radionuclides - flagged from: Combined Radium (-226 and -228)
- Other regulated metals - flagged from: Barium
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
This is what HUNTLEY 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 - 15 health-based violations on file for HUNTLEY - 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.