WASHINGTON, DC · District of Columbia County
D.C. WATER AND SEWER AUTHORITY Water System
Consumer Confidence Report status
D.C. WATER AND SEWER AUTHORITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for D.C. WATER AND SEWER AUTHORITY.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace District of Columbia’s official records. Always confirm current status with District of Columbia before making decisions based on this information.
System facts
- System ID (PWSID)
- DC0000002
- System type
- Community Water System
- Population served
- 632,323
- Service connections
- 133,500
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
D.C. WATER AND SEWER AUTHORITY serves 632,323 people from surface water, placing it in the more than 100,000 people size category.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is D.C. WATER AND SEWER AUTHORITY required to publish a Consumer Confidence Report?
- Yes. D.C. WATER AND SEWER AUTHORITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is D.C. WATER AND SEWER AUTHORITY’s next Consumer Confidence Report due?
- D.C. WATER AND SEWER AUTHORITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does D.C. WATER AND SEWER AUTHORITY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for D.C. WATER AND SEWER AUTHORITY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
SCHMELLING, MAUREEN
202-364-3131
WASHINGTON, DC 20016