What's in ANNA's water?
ANNA had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 4,910 people get their water from it, across 2,064 connections.
How this compares nationally
18 total violations and 6 health-based ones put ANNA at the 76th percentile nationally for violation burden, rank 3,133 of 12,903.
Against the IL average
IL's 560 covered systems average 5.0 health-based violations each; ANNA carries 6, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
ANNA's most recent violation on record is dated 2025-01-07, with the most recent health-based one dated 2024-01-04. Last reported to EPA: 05/27/2026.
The concern categories on record
ANNA'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)
- Disinfection byproducts - flagged from: TTHM
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 ANNA's record does not cover
Everything on this page is ANNA's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and ANNA's customers' taps is household plumbing, invisible to a system-level record ranked 3,133th of 12,903 by violation count. The guide to what this data misses covers that gap.