Is DECATUR's water safe to drink?
DECATUR has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 76,122 people through 31,407 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, DECATUR ranks 636th by violation burden (95th percentile) - 31 violations total, 28 health-baseds.
Against the IL average
DECATUR's 28 health-based violations sit above 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
DECATUR's most recent violation on record is dated 2023-01-10, with the most recent health-based one dated 2002-01-04. Last reported to EPA: 05/27/2026.
The concern categories on record
DECATUR'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:
- Nitrate / nitrite - flagged from: Nitrate
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What DECATUR's record does not cover
Everything on this page is DECATUR'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 31 logged violations can see. The guide to what this data misses covers that gap.