Barium in Drinking Water

EPA Limit: 2 mg/L

The EPA maximum contaminant level for barium is 2 mg/L.

Where Does Barium Come From?

Barium occurs naturally in mineral deposits and can dissolve into groundwater. Industrial discharges from drilling, smelting, and refining operations can also contribute.

Health Risks

Short-term exposure above the MCL can cause gastrointestinal disturbance and muscular weakness. Long-term exposure may cause high blood pressure and cardiovascular effects.

What Should I Do?

Ion exchange, reverse osmosis, and electrodialysis can remove barium from drinking water.