Home / District of Columbia / 20374
C
56

Fair Water Quality

Washington, DC 20374

District Of Columbia County · Population served: 648,013

Water Systems Serving This Area

🏔
D.C. WATER AND SEWER AUTHORITY
Surface water · Pop. 632,323
PWSID: DC0000002
🏔
NAVAL STATION WASHINGTON - WNY
Surface water · Pop. 15,690
PWSID: DC0000003

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
3.4
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

4 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA4.7 pptNo standard—Unregulated
PFPeA4.3 pptNo standard—Unregulated
PFHxA3.8 pptNo standard400 pptUnregulated
PFHxA3.1 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

21Total (5yr)
4Health-Based
10Major