Northern Illinois University-Dekalb, IL Water Quality
Northern Illinois University-Dekalb: EPA violation history, explained
Northern Illinois University-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 6,500 people through 70 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, Northern Illinois University-Dekalb ranks 8,224th by violation burden (36th percentile) - 10 violations total, 1 health-based.
How Northern Illinois University-Dekalb compares within IL
Among the 572 IL systems in this dataset, the average is 5.1 health-based violations - Northern Illinois University-Dekalb's 1 is at or below that. 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 Northern Illinois University-Dekalb is from 2014-01-07 (health-based: 1992-07-12). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
Northern Illinois University-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:
- Lead & copper - flagged from: Lead and Copper Rule
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
Northern Illinois University-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 - 1 health-based violation on file for Northern Illinois University-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.