Tapcensus

Barium violations in Minnesota

5 active public water systems in Minnesota had a Barium violation in the past three years. What Barium is and why it matters.

Health effects: Short-term exposure above the MCL can cause increases in blood pressure. Chronic exposure is associated with cardiovascular effects, kidney damage, and gastrointestinal disturbance. The general population is at risk; those with pre-existing hypertension or kidney disease face greater concern.

Systems with a Barium violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Upper Sioux Community
County 		1,900 3 0
Grand Portage
County 		820 13 3
Bug-O-Nay-Ge-Shig School
County 		520 6 0
Ponemah
County 		371 9 1
Bug-O-Nay-Ge-Shig School Gym
County 		170 7 0
About this data

A system is counted once if any of its violations in the past three years involved Barium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Barium 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. Retrieved from ECHO on Oct 11, 2026.