What's in SESSER's water?

SESSER's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 2,556, over 1,022 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, SESSER ranks 10,859th by violation burden (16th percentile) - 7 violations total, 0 health-baseds.

How SESSER compares within IL

Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - SESSER's 0 is at or below that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

The last violation EPA has on record for SESSER is from 2023-01-10. Last reported to EPA: 05/27/2026.

What this data is and is not

This is what SESSER 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 SESSER's customers' taps is household plumbing, invisible to a system-level record ranked 10,859th of 12,903 by violation count. The guide to what this data misses covers that gap.