Tapcensus

2,4,5-TP (Silvex) violations in Minnesota

6 active public water systems in Minnesota had a 2,4,5-TP (Silvex) violation in the past three years, 2 of them in the latest quarter of EPA's data. What 2,4,5-TP (Silvex) is and why it matters.

Health effects: Chronic exposure to Silvex is associated with liver damage. EPA classifies it as a possible human carcinogen (Group C). The dioxin contamination historically associated with its production added to concern about its carcinogenicity, though the MCL applies to Silvex itself. Long-term exposure above the MCL is the primary concern.

Systems with a 2,4,5-TP (Silvex) 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
Le Center
Le Sueur County 		2,544 1 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 2,4,5-TP (Silvex), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,4,5-TP (Silvex) 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.