Tapcensus

Carbon Tetrachloride violations in Minnesota

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

Health effects: Carbon tetrachloride is classified by EPA as a probable human carcinogen (Group B2). Chronic exposure causes liver and kidney damage and is associated with liver cancer in animal studies. Acute high-dose exposure causes severe hepatotoxicity — nausea, vomiting, jaundice, and acute liver failure. Communities near contaminated groundwater plumes and historical industrial sites face the greatest long-term risk.

Systems with a Carbon Tetrachloride 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 Carbon Tetrachloride, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Carbon Tetrachloride 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.