MOUNT STERLING: EPA violation history, explained
MOUNT STERLING has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,271 people get their water from it, across 1,258 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, MOUNT STERLING ranks 8,184th by violation burden (37th percentile) - 11 violations total, 1 health-based.
Against the IL average
MOUNT STERLING's 1 health-based violations sit within the IL average of 5.0, across 560 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
MOUNT STERLING's most recent violation on record is dated 2025-01-10, with the most recent health-based one dated 2005-01-06. Last reported to EPA: 05/27/2026.
The concern categories on record
MOUNT STERLING'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 STERLING's record does not cover
MOUNT STERLING'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.