PFAS contamination data for 47 water systems in District of Columbia, serving 717,699 people.
District of Columbia follows federal EPA MCLs (PFOA/PFOS: 4 ppt).
DC follows federal EPA MCLs. DC Water monitors for PFAS in drinking water supply.
DC follows federal EPA MCLs. DC Water actively monitors for PFAS in drinking water supply.
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| System | City | Population | PFOA (ppt) | PFOS (ppt) | Status |
|---|---|---|---|---|---|
| D.C. WATER AND SEWER AUTHORITY DC0000002 | WASHINGTON | 632,323 | — | — | Compliant |
| NATIONAL AIRPORT VA6013080 | WASHINGTON | 28,055 | — | — | Compliant |
| JOINT BASE ANACOSTIA - BOLLING DC0000004 | WASHINGTON | 19,312 | — | — | Compliant |
| NAVAL STATION WASHINGTON - WNY DC0000003 | WASHINGTON | 15,690 | — | — | Compliant |
| BOLLING - JOINT BASE ANACOSTIA-BOLLING DC0000007 | JOINT BASE ANACOSTIA-BOLLING | 12,499 | — | — | Compliant |
| BIE CHEMAWA INDIAN SCHOOL 104101132 | WASHINGTON | 900 | — | — | Compliant |
| Wingate Elementary School (New) - BIE 093534022 | Washington | 800 | — | — | Compliant |
| Fort Wingate Community 093534020 | Washington | 550 | — | — | Compliant |
| Eastern Navajo Agency - BIE 093534001 | Washington | 455 | — | — | Compliant |
| PASCHAL SHERMAN INDIAN SCHOOL 105300009 | WASHINGTON | 220 | — | — | Compliant |
| Chi Chil Tah Jones Ranch Community School - BIE 093534005 | Washington | 137 | — | — | Compliant |
| Dibe Yazhi Habitiin (Borrego Pass) Day School-BIE 093534003 | Washington | 120 | — | — | Compliant |
| Lake Valley Navajo School - BIE 093534010 | Washington | 60 | — | — | Compliant |
| WASHINGTON AQUEDUCT DIVISION. DC0000001 | WASHINGTON | — | — | — | Compliant |