Tapcensus

2,3,7,8-TCDD (Dioxin) violations in Minnesota

5 active public water systems in Minnesota had a 2,3,7,8-TCDD (Dioxin) violation in the past three years, 2 of them in the latest quarter of EPA's data. What 2,3,7,8-TCDD (Dioxin) is and why it matters.

Health effects: TCDD is classified as a known human carcinogen (Group A) by EPA. Even at extremely low concentrations it is associated with increased cancer risk, particularly soft tissue sarcoma and lymphoma. It also causes chloracne, liver damage, immune suppression, and reproductive and developmental toxicity. The MCL is set at a vanishingly low level reflecting its extreme potency.

Systems with a 2,3,7,8-TCDD (Dioxin) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Bug-O-Nay-Ge-Shig Vocational School
County
180 5 0
Bug-O-Nay-Ge-Shig School Gym
County
170 7 0
Redby/red Lake
County
2,099 8 2
Grand Portage
County
820 13 3
Ponemah
County
371 9 1
About this data

A system is counted once if any of its violations in the past three years involved 2,3,7,8-TCDD (Dioxin), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,3,7,8-TCDD (Dioxin) 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.