What's in COAL CITY's water?
COAL CITY had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 5,749, over 2,406 connections.
COAL CITY's record against the rest of the country
COAL CITY has 166 violations on record in total, 19 of thems health-based - ranking it 923th of 12,903 systems by violation count, the 93th percentile nationally.
How COAL CITY compares within IL
COAL CITY's 19 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
The last violation EPA has on record for COAL CITY is from 2026-01-01 (health-based: 2025-05-10). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
COAL CITY'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:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Radionuclides - flagged from: Combined Radium (-226 and -228); Gross Alpha, Excl. Radon and U
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
Everything on this page is COAL CITY'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 166 logged violations can see. The guide to what this data misses covers that gap.