Is D.C. WATER AND SEWER AUTHORITY Water Safe to Drink in 2026?
Washington DC · PWSID DC0000002 · Surface water
Population served
632,323
Cities served
—
State / jurisdiction
Washington DC (DC)
PWSID
DC0000002
F
TAP WATER GRADE
High risk
Model score 24/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
82 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS compounds detected in UCMR5 monitoring
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CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFPeA
4.7
—
Within / n/a
Unregulated (monitored)
PFHxA
3.1
—
Within / n/a
Unregulated (monitored)
Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 82 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
Based on D.C. WATER AND SEWER AUTHORITY's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR D.C. WATER AND SEWER AUTHORITY
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR D.C. WATER AND SEWER AUTHORITY · Chosen for D.C. WATER AND SEWER AUTHORITY because the latest federal SDWA snapshot lists substantial violation activity. Certified reverse osmosis provides the broadest residential barrier for households that want margin beyond legal compliance.
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