Is SAUK's water safe to drink?

SAUK has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 9,921, over 3,200 connections.

SAUK's record against the rest of the country

196 total violations and 5 health-based ones put SAUK at the 74th percentile nationally for violation burden, rank 3,335 of 12,903.

Against the IL average

IL's 560 covered systems average 5.0 health-based violations each; SAUK carries 5, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

SAUK's most recent violation on record is dated 2025-12-07, with the most recent health-based one dated 2009-01-05. Last reported to EPA: 05/27/2026.

The concern categories on record

SAUK'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 SAUK's record does not cover

This is what SAUK 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. Between the utility's meter and SAUK's customers' taps is household plumbing, invisible to a system-level record ranked 3,335th of 12,903 by violation count. The guide to what this data misses covers that gap.