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Tap water quality report

Lead in DC

Of the 11 water suppliers tested for Lead in DC, 1 exceeded the lead action level (9.1%).

9.1%
of suppliers exceeded the lead action level
11
suppliers tested
DC rankings Lead in DC PFAS in DC

What is Lead?

Lead is a neurotoxin with no known safe level. It usually enters water from old service lines and household plumbing rather than the source, so results vary system to system. The EPA acts when the 90th-percentile sample exceeds 0.015 mg/L.

Water suppliers

Lead value per supplier, LCR compliance samples. EPA action level — 0.015 mg/L at the 90th percentile. Suppliers that exceeded the lead action level are highlighted and listed first. “Not detected” means the contaminant was measured but not found.
SupplierCityPopulationLead (mg/L)
Washington Aqueduct Division. Washington 0 0.0390 mg/L
Eastern Navajo Agency - Bie Crownpoint Bia 455 0.0091 mg/L
Wingate Elementary School (New) - Bie Fort Wingate 800 0.0032 mg/L
Dibe Yazhi Habitiin (Borrego Pass) Day School-Bie Borrego Pass School 120 0.0025 mg/L
D.C. Water and Sewer Authority Washington 632,323 0.0020 mg/L
Chi Chil Tah Jones Ranch Community School - Bie Chichiltah Boarding School 137 0.00090 mg/L
Hanaadli Huerfano Boarding School - Bie Huerfano Boarding School 65 0.00090 mg/L
Naval Station Washington - Wny Washington Navy Yard 16,800 0.00081 mg/L
Joint Base Anacostia - Bolling Washington 19,312 0.00050 mg/L
Fort Wingate Community Ft. Wingate Elementary School 550 0.00050 mg/L
Bie Chemawa Indian School Salem 320 0.0 mg/L