Is MOUNT VERNON's water safe to drink?
MOUNT VERNON has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 15,793 people through 6,655 service connections.
MOUNT VERNON's record against the rest of the country
MOUNT VERNON has 11 violations on record in total, 2 of thems health-based - ranking it 6,479th of 12,903 systems by violation count, the 50th percentile nationally.
Against the IL average
IL's 560 covered systems average 5.0 health-based violations each; MOUNT VERNON carries 2, not more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
MOUNT VERNON's most recent violation on record is dated 2024-01-07, with the most recent health-based one dated 2000-01-06. Last reported to EPA: 05/27/2026.
The concern categories on record
MOUNT VERNON'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)
- Disinfection byproducts - flagged from: TTHM
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 VERNON's record does not cover
MOUNT VERNON'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 11 logged violations can see. The guide to what this data misses covers that gap.