Tapcensus

1,1-Dichloroethylene violations in Minnesota

7 active public water systems in Minnesota had a 1,1-Dichloroethylene violation in the past three years, 1 of them in the latest quarter of EPA's data. What 1,1-Dichloroethylene is and why it matters.

Health effects: Chronic exposure to 1,1-dichloroethylene is associated with liver and kidney damage. EPA classifies it as a possible human carcinogen (Group C) based on animal data. Acute high-level exposure can cause central nervous system depression. Long-term exposure above the MCL is the primary concern for public water system violations.

Systems with a 1,1-Dichloroethylene violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
North Woods School, Isd No. 2142
St. Louis County
650 2 1
Grand Portage
County
820 13 3
Xcel Energy/prairie Island-121,122
Goodhue County
300 1 0
Bug-O-Nay-Ge-Shig Vocational School
County
180 5 0
Bug-O-Nay-Ge-Shig School Gym
County
170 7 0
Village of Baycrest
Pope County
60 1 0
Xcel Energy/prairie Island Dist Center
Goodhue County
30 1 0
About this data

A system is counted once if any of its violations in the past three years involved 1,1-Dichloroethylene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 1,1-Dichloroethylene 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 Minnesota 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.