Emergency Water Main Repair
May 02, 2025 | 08:00 PM

EMERGENCY WATER OUTAGE
May 02, 2025 | 02:30 PM

NO RISE IN BACTERIAL LEVELS FOR THIRD CONSECUTIVE MONTH

January 03, 2005

DC WASA continues its longstanding tradition of producing drinking water that surpasses federal water quality standards: According to recent tests, there’s been no rise in the area’s coliform levels for three consecutive months.

No coliform was not detected in any of the 215 samples analyzed Dec. 27. If there had been a rise in the coliform count, WASA would have been required to notify the Environmental Protection Agency and all WASA customers.

The presence of coliform, naturally occurring bacteria found in soil, vegetation and animals, could serve as an indication that more harmful bacteria may be present in the water.

WASA has surpassed the federal drinking water standard 98 times in the past 99 months – and failed to meet those standards only once in the past eight years. In September, 2004, coliform levels exceeded allowable limits when orthophosphate, a corrosive chemical, was added to the District’s water supply to prevent the lead in lead service pipes from leaching into the water during the warm summer months

Sampling continues next month. The public will be notified of any changes in coliform levels.

Latest News

Map of area on K and 30th St where utility investigation will occur

Map: The blue arrows represent the pedestrian detour. Motorists follow the yellow arrows. The bicycle trail remains open.

DC CLEAN RIVERS – POTOMAC RIVER TUNNEL PROJECT 

Beginning on or about May 8 ...

Images showing the crack in the crown of the red brick sewer.

DC Water is preparing for emergency repairs on a large sewer line next to Rock Creek, after discovering significant structural issues. The six-foot pipeline, known as the Rock Creek Main Interceptor ...

DC Water Potomac River Tunnel Project construction site at West Potomac Park

As part of the excavation work for DC Water’s Potomac River Tunnel Project, weekly controlled underground blasting operations at the West Potomac Park construction site will begin as early as next ...

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Map of area on K and 30th St where utility investigation will occur
TRAFFIC ADVISORY: 30th and K streets Northwest: Temporary Lane and Sidewalk Closures

Map: The blue arrows represent the pedestrian detour. Motorists follow the yellow arrows.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
When one of your major sewer lines runs through the Potomac River, a backhoe and trencher won't do. That's why we've got helicopters carrying a 14-ton drill and workers suspended midair over the Potomac.
Upcoming Meeting