What's in NOKOMIS's water?
NOKOMIS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,370 people get their water from it, across 1,183 connections.
How this compares nationally
12 total violations and 7 health-based ones put NOKOMIS at the 78th percentile nationally for violation burden, rank 2,830 of 12,903.
Against the IL average
IL's 560 covered systems average 5.0 health-based violations each; NOKOMIS carries 7, more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
NOKOMIS's most recent violation on record is dated 2026-01-01, with the most recent health-based one dated 1996-01-10. Last reported to EPA: 05/27/2026.
The concern categories on record
NOKOMIS'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:
- Synthetic organic chemicals / pesticides / VOCs - flagged from: Trichloroethylene
The most severe category on record is synthetic organic chemicals / pesticides / vocs, which points toward a carbon-class filter if you want to address it directly.
What NOKOMIS's record does not cover
NOKOMIS'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 NOKOMIS - 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.