Water Quality in District of Columbia
4 water systems • 1 cities • EPA SDWIS Data
4
Water Systems
115
Total Violations
23
Health-Based Violations
667,325
Population Served
Overview
District of Columbia has 4 active community water systems serving 667,325 people. These systems have accumulated 115 EPA Safe Drinking Water Act violations on record, of which 23 are health-based violations (meaning a contaminant exceeded safe levels).
Common contaminants found in violations: Disinfection Byproducts, Bromate, E. coli, TTHM, Fecal Coliform.
Cities with Most Violations in District of Columbia
| # | City | Violations | Health-Based | Water Systems | Population |
|---|---|---|---|---|---|
| 1 | Washington | 110 | 22 | 4 | 667,325 |
Largest Cities in District of Columbia
| # | City | Population | Violations | Water Systems |
|---|---|---|---|---|
| 1 | Washington | 667,325 | 110 | 4 |
All Cities in District of Columbia
| City | Population | Violations | Health Violations | Contaminants |
|---|---|---|---|---|
| Washington | 667,325 | 110 | 22 | Bromate, Disinfection Byproducts, E. coli +2 more |
Data Sources
Drinking water data from the EPA Safe Drinking Water Information System (SDWIS). Only active community water systems (CWS) serving 100+ people are included.