Tapcensus

Aldicarb Sulfone violations in Wisconsin

2 active public water systems in Wisconsin had a Aldicarb Sulfone violation in the past three years. What Aldicarb Sulfone is and why it matters.

Health effects: Aldicarb sulfone inhibits acetylcholinesterase by the same mechanism as aldicarb and aldicarb sulfoxide. Acute toxicity includes cholinergic syndrome — nausea, excessive secretions, muscle weakness, and in high doses potential respiratory failure. Children and individuals with compromised nervous systems are most susceptible.

Systems with a Aldicarb Sulfone violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
West Bend Waterworks
West Bend · Washington County 		32,149 5 0
Middleton Waterworks
Middleton · Dane County 		23,868 3 1
About this data

A system is counted once if any of its violations in the past three years involved Aldicarb Sulfone, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Aldicarb Sulfone alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wisconsin records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.