State
District of Columbia: drinking water records
EPA lists 11 community water systems serving homes in District of Columbia. 3 took part in EPA's national PFAS survey (UCMR 5), and 3 found at least one PFAS above the level laboratories can measure.
In focus11community water systems
Public records. Clearer context.
0
ZIP reports published
11
community water systems
8
systems with a health-based violation since 2016
0
systems that reached the lead action level since 2016
Counties
- District of Columbia 4 systems
ZIP reports
Sources
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.