MOUNT PROSPECT: EPA violation history, explained
MOUNT PROSPECT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 41,000 people through 11,590 service connections.
MOUNT PROSPECT's record against the rest of the country
Out of 12,903 systems in this dataset, MOUNT PROSPECT ranks 7,988th by violation burden (38th percentile) - 14 violations total, 1 health-based.
Against the IL average
MOUNT PROSPECT's 1 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
MOUNT PROSPECT's most recent violation on record is dated 2025-01-07, with the most recent health-based one dated 1992-01-10. Last reported to EPA: 05/27/2026.
The concern categories on record
MOUNT PROSPECT'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 MOUNT PROSPECT's record does not cover
Everything on this page is MOUNT PROSPECT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 14 logged violations can see. The guide to what this data misses covers that gap.