DrinkingWaterCheck

CALHOUN COUNTY RWD: EPA violation history, explained

CALHOUN COUNTY RWD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 4,675, over 1,771 connections.

How this compares nationally

Out of 12,903 systems in this dataset, CALHOUN COUNTY RWD ranks 8,389th by violation burden (35th percentile) - 8 violations total, 1 health-based.

How CALHOUN COUNTY RWD compares within IL

IL's 560 covered systems average 5.0 health-based violations each; CALHOUN COUNTY RWD carries 1, not more than typical for the state. 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 CALHOUN COUNTY RWD is from 2020-08-09 (health-based: 2020-01-07). Last reported to EPA: 05/27/2026.

What kind of problem, specifically

CALHOUN COUNTY RWD'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:

The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.

What this data is and is not

CALHOUN COUNTY RWD'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 CALHOUN COUNTY RWD - 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.