Barium in District of Columbia Drinking Water
District of Columbia has 48 public water systems. 19 have recorded barium violations.
Total Systems
48
With Violations
19
EPA MCL
2
Population Served
701K
Barium in District of Columbia: Key Facts
Total Water Systems
48
Systems with Violations
19
Lead Violations
2
Copper Violations
4
EPA Standard
2 mg/L
MCLG (goal): 2 mg/L
Water Systems with Violations in District of Columbia
| System | Population | Violations |
|---|---|---|
| PASCHAL SHERMAN INDIAN SCHOOL | 220 | 195 |
| WA HE LUT INDIAN SCHOOL | 175 | 114 |
| Eastern Navajo Agency - BIE | 455 | 112 |
| Chi Chil Tah Jones Ranch Community School - BIE | 137 | 94 |
| D.C. WATER AND SEWER AUTHORITY | 632K | 82 |
| JOINT BASE ANACOSTIA - BOLLING | 19K | 81 |
| Fort Wingate Community | 550 | 67 |
| Bread Springs Day School (New) - BIE | 115 | 66 |
Health Effects of Barium Exposure
Blood pressure increase
Even near-MCL levels can raise blood pressure
Cardiac effects
Long-term high exposure linked to heart arrhythmias
GI and muscle effects
Can cause nausea, muscle weakness, and paralysis at very high levels
Increase in blood pressure at levels above the MCL. Long-term exposure can affect the cardiovascular system and kidneys.
Frequently Asked Questions
Is there barium in District of Columbia water?
District of Columbia has 48 public water systems. 19 have recorded barium violations based on EPA SDWIS data. If you are on a private well, your water is not covered by these regulations and should be tested independently.
How can I check my District of Columbia water for barium?
Search for your water system using the WaterCheck system lookup, or contact your utility and request a copy of your Consumer Confidence Report (CCR). The CCR is published annually and lists all detected contaminants, their levels, and the EPA MCLs. For private wells, contact a state-certified lab for independent testing.
What is the EPA limit for barium?
The EPA Maximum Contaminant Level (MCL) for barium is 2 mg/L. Systems that exceed MCLs are required to notify customers and take corrective action.
Barium at a Glance
Source
Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
How to Filter Barium
- +Reverse osmosis and ion exchange systems remove barium
- +Distillation is also effective
- +NSF/ANSI 58 certified RO systems are the most reliable option