District of Columbia Water Quality Report
Tap water quality data for 1 cities in District of Columbia, updated 2026.
US average: 100 ppm
1 of 1 cities violation-free
1 cities tested
1 water systems tracked
Cleanest Tap Water in District of Columbia
Cities with the fewest water quality issues
No cities in District of Columbia have recorded water quality violations in the past 3 years.
District of Columbia Tap Water: What You Need to Know
District of Columbia has 1 tracked water utilities serving approximately 632K residents.
No cities in District of Columbia have recorded water quality violations in the past 3 years — an excellent compliance record. All 1 tested cities have lead levels below the EPA action level of 15 ppb.
Frequently Asked Questions About District of Columbia Water
Is tap water safe to drink in District of Columbia?
Based on available EPA data, no cities in District of Columbia have recorded water quality violations in the past 3 years. However, water quality can vary by building — older homes may have lead pipes. Consider testing your water at home for complete peace of mind.
Which city in District of Columbia has the cleanest tap water?
Based on EPA violation data, lead testing, and water quality metrics, D.c. ranks as having the cleanest tap water in District of Columbia. It has zero violations in the past 3 years and lead levels well below the EPA action level.
Where does District of Columbia get its water from?
The majority of District of Columbia's water systems (100%) use surface water as their primary source. Surface water comes from rivers, lakes, and reservoirs. Each city's specific source can vary — check individual city reports for details.
All 1 Cities
Sorted by population served