WASHINGTON AQUEDUCT DIVISION.
Washington D.C. — Community Water System — PWSID: DC0000001
System Information
| PWSID | DC0000001 |
| System Name | WASHINGTON AQUEDUCT DIVISION. |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 03 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Mar 1, 1979 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Washington D.C. |
| City | WASHINGTON |
| ZIP Code | 20016 |
| Address | Washington Aqueduct Division |
| Organization | CHOW, RUDOLPH |
| Phone | 202-345-9910 |
Population & Service
| Population Served | — |
| Service Connections | 3 |
Drinking Water Violations (13)
This water system has 13 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2020 | Jun 30, 2020 | MR | No | No | — | — | — | Resolved | Jun 30, 2020 | — | |
| Jun 1, 2020 | Jun 30, 2020 | MR | No | No | — | — | — | Resolved | Jun 30, 2020 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | — | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | — | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | — | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | — | — | Resolved | Oct 31, 2010 | — | |
| Dec 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2008 | — | |
| Dec 1, 2008 | Dec 31, 2008 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2008 | — | |
| Jul 1, 2003 | Sep 30, 2003 | MR | No | No | — | 0.7 mg/L | — | Resolved | Sep 30, 2003 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1993 | — | |
| Sep 1, 1993 | Sep 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1993 | — | |
| Sep 1, 1993 | Sep 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 1993 | — | |
| — | — | — | No | No | — | — | — | — | — | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.