Barium in Washington Drinking Water
1,111 public water systems in Washington have historical EPA violation records associated with barium in the Q2 2026 snapshot.
1,697
Historical Records in Washington
1,111
Systems With Records
About Barium
- EPA Limit
- 2000 ppb
- Category
- Inorganic
- Health Effects
- Increase in blood pressure
- Common Treatment Approaches
- Ion exchange, reverse osmosis
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.