Is CAROL STREAM's water safe to drink?
CAROL STREAM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 39,854 people through 11,574 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, CAROL STREAM ranks 8,276th by violation burden (36th percentile) - 9 violations total, 1 health-based.
Against the IL average
CAROL STREAM'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
CAROL STREAM's most recent violation on record is dated 2025-01-05, with the most recent health-based one dated 2003-01-06. Last reported to EPA: 05/27/2026.
The concern categories on record
CAROL STREAM'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 CAROL STREAM's record does not cover
This is what CAROL STREAM reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 9 logged violations can see. The guide to what this data misses covers that gap.