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Jan 25, 2026 | 01:39 PM

Emergency Water Outage
Jan 25, 2026 | 11:05 AM

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

Photo of the Potomac Interceptor Bypass where overflow reentering the sewer line

DC Water is nearing full containment on a sanitary sewer overflow, nearly a week after a section of the Potomac Interceptor – a major sewer line – collapsed in Montgomery County, MD. In the first full day of operation since a temporary bypass system was activated, the flow of wastewater downstream where it re-enters the sewer line has increased by about 40 million gallons per day.

A DC Water employee breaks up ice on a sidewalk

Measures in Place to Help Ensure Water Service and Customer Safety

Pipes from three of the pumps discharge flow into the C&O Canal

Six Pumps Turned On and Rerouting Wastewater Around Collapsed Section of the Sewer Line.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Map of lane closure
Traffic Advisory: Rock Creek and Potomac Parkway NW Lane Closure Beginning Jan 19

Beginning on or about January 19, 2026, weather permitting, DC Water will implement a temporary lane closure on Rock Creek and Potomac Parkway NW b

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
Date
January 27, 2026
Tuesday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 40% of the last 3 payments made and in the new fiscal year 50% will be credited. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.