DELAVAN WATERWORKS: EPA violation history, explained

DELAVAN WATERWORKS's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 9,028 people get their water from it, across 3,343 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, DELAVAN WATERWORKS ranks 9,722th by violation burden (25th percentile) - 35 violations total, 0 health-baseds.

Against the WI average

WI's 202 covered systems average 3.6 health-based violations each; DELAVAN WATERWORKS carries 0, not more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

DELAVAN WATERWORKS's most recent violation on record is dated 2026-01-01. Last reported to EPA: 05/29/2026.

What DELAVAN WATERWORKS's record does not cover

This is what DELAVAN WATERWORKS 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 DELAVAN WATERWORKS - 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.