What's in THREE COUNTY PWD's water?
THREE COUNTY PWD had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 3,575 people through 1,430 service connections.
THREE COUNTY PWD's record against the rest of the country
Out of 12,903 systems in this dataset, THREE COUNTY PWD ranks 2,777th by violation burden (78th percentile) - 15 violations total, 7 health-baseds.
How THREE COUNTY PWD compares within IL
IL's 560 covered systems average 5.0 health-based violations each; THREE COUNTY PWD carries 7, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for THREE COUNTY PWD is from 2026-01-01 (health-based: 2026-01-01). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
THREE COUNTY PWD'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); Interim Enhanced Surface Water Treatment Rule
- Disinfection byproducts - flagged from: Total Haloacetic Acids (HAA5)
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
Everything on this page is THREE COUNTY PWD'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 15 logged violations can see. The guide to what this data misses covers that gap.