What's in ADDISON's water?

ADDISON's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 38,017, over 9,997 connections.

Ranked against every other system in this dataset

4 total violations and 0 health-based ones put ADDISON at the 12th percentile nationally for violation burden, rank 11,310 of 12,903.

Against the IL average

Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - ADDISON's 0 is at or below that. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

ADDISON's most recent violation on record is dated 2024-01-07. Last reported to EPA: 05/27/2026.

What ADDISON's record does not cover

This is what ADDISON 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. This record - 0 health-based violations on file for ADDISON - 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.