CARBONDALE: EPA violation history, explained
CARBONDALE 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: 22,107, over 7,134 connections.
Ranked against every other system in this dataset
12 total violations and 7 health-based ones put CARBONDALE at the 78th percentile nationally for violation burden, rank 2,820 of 12,903.
How CARBONDALE compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - CARBONDALE's 7 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for CARBONDALE is from 2026-03-08 (health-based: 2025-01-12). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
CARBONDALE'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: Interim Enhanced Surface Water Treatment Rule; Long Term 2 Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
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 this data is and is not
CARBONDALE'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 12 logged violations can see. The guide to what this data misses covers that gap.