Is DEKALB's water safe to drink?
DEKALB has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 40,290 people through 10,815 service connections.
How this compares nationally
DEKALB has 16 violations on record in total, 7 of thems health-based - ranking it 2,756th of 12,903 systems by violation count, the 79th percentile nationally.
How DEKALB compares within IL
DEKALB's 7 health-based violations sit above the IL average of 5.0, across 560 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for DEKALB is from 2025-01-07 (health-based: 1998-01-12). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
DEKALB'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)
- Radionuclides - flagged from: Combined Radium (-226 and -228)
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
DEKALB'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. This record - 7 health-based violations on file for DEKALB - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.