Dry Weather Overflow Advisory Update

November 19, 2021

As communicated yesterday, DC Water investigated a dry weather overflow event at CSO 029 on the Potomac River. This was due to a leak from an 18” sewer pipe located near 3800 Reservoir Road, NW.

Overnight, crews were able to successfully bypass the leak to contain it and prevent further discharges to the Potomac. However, work to repair the leak was suspended for safety reasons during the periods of rain, which can prove deadly when working inside combined sewer pipes. This morning, the contractor was able to complete the repair and the bypass was removed.

The Potomac River is fast moving and any amount of sewage that discharge should dilute quickly. The public is still advised to stay away from the area near Outfall 029 for the next 24 hours in case there are any residual effects on the receiving waters. Anyone on the Potomac today who may come in contact with the water near CSO 029 should take precautions by bathing and washing equipment and clothing.

Information on Dry Weather Overflows can be found here: 
https://www.dcwater.com/css

Information provided to the public yesterday can be found here:
/whats-going-on/news/dry-weather-overflow-advisory

For more information, please contact DC Water’s 24 hour Command Center at 202-612-3400.

Latest News

Photo of LFDC workers digging

DC Water's Lead Free DC Program accelerated its work across all eight wards last year, replacing 43% more lead service lines in Fiscal Year 2025 than the prior year. This marks a significant achievement for the program in the newly released annual report on Lead Free DC.

graphic with meeting information

We hope to see you tonight for our upcoming Lead Free DC Virtual Meeting! We will discuss Losing the Lead Without Losing Your Yard. This session is an in-depth look at an important concern for many homeowners: how Lead Free DC restores your yard following a lead service line replacement.

Photo of Potomac River at the overflow location

Hundreds of Sampling Results Confirm Return to Normal Bacteria Levels in Potomac River

DC Water has outlined its next steps to complete the environmental cleanup and its plan for continued water quality monitoring this summer, as part of the ongoing response to January’s failure in the Potomac Interceptor sewer pipeline. The plan, submitted to the Maryland Department of the Environment (MDE), is supported by extensive data from hundreds of samples.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Placeholder DC Water Image
Piney Branch Parkway Temporary Closure and Relocation

DC Water has nearly completed construction site preparation for the Piney Branch Tunnel project, including tree removal, and installation of fences

Latest Blog Post
DC Water General Manager and CEO David Gadis recognizes Lily MacDonald during the May Board of Directors meeting.
From Classroom to Community: A Student Spotlight on DC Water's SPLASH Program
A speechwriting assignment became a call to action for water access and affordability through DC Water's SPLASH program.
Upcoming Meeting

Upcoming Events

May 16
2:00 pm - 6:00 pm
May 20

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. 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.