PUBLIC MEETING NOTICE: DC Water to Provide Update and Next Steps on Potomac Interceptor Response

February 21, 2026
Graphic with details about the two community meetings.

DC Water will host two community meetings to provide a comprehensive update on the Potomac Interceptor response, current system status, and next steps in emergency repair and long-term rehabilitation efforts.

The meetings will provide a structured overview of:

  • What occurred
  • Immediate response actions
  • Current repair timeline
  • Long-term Capital Improvement Plan commitments

DC Water officials and technical staff will present information directly and answer questions from community members.

Meeting Information

Wednesday, February 25 - Washington, DC

What: Community Meeting on Potomac Interceptor Response

Where: DC Water Headquarters, 1385 Canal St SE, Washington, DC 20003

Time: 7:00 PM

Who:

David L. Gadis, CEO and General Manager, DC Water

Matt Brown, Chief Operating Officer, DC Water

Kirsten Williams, Chief Administrative Officer, DC Water

Moussa Wone, Chief Engineer, DC Water

Jeff Peterson, Director, Clean Rivers Project, DC Water

 

Thursday, February 26 – Bethesda, Maryland

What: Community Meeting on Potomac Interceptor Response

Where:
Walt Whitman High School (cafeteria), 7100 Whittier Blvd., Bethesda, MD 20817

Time: 7:00 PM

Who:

David L. Gadis, CEO and General Manager, DC Water

Matt Brown, Chief Operating Officer, DC Water

Kirsten Williams, Chief Administrative Officer, DC Water

Moussa Wone, Chief Engineer, DC Water

Jeff Peterson, Director, Clean Rivers Project, DC Water

Background

On January 19, 2026, a section of the 54-mile Potomac Interceptor (PI) sewer line collapsed along Clara Barton Parkway, in Montgomery County, resulting in a significant overflow into the C & O Canal National Historical Park. The PI carries about 60 million gallons of wastewater daily from as far away as Dulles Airport to the Blue Plains Advanced Wastewater Treatment Plant in Southwest DC for treatment.

DC Water crews and contractors began work immediately to construct a bypass to contain the overflow. The bypass was completed and activated on January 24, utilizing powerful pumps and the C&O Canal to reroute wastewater around the collapsed section of pipe and back into the sewer system. o additional overflows entering the Potomac River have occurred since February 8. Crews are removing rocks and debris from the collapsed section of pipe and emergency repairs are projected to be completed by mid-March.

Protecting public health and the Potomac River remains DC Water’s top priority. For the latest information about the Potomac Interceptor Response, go to dcwater.com/potomac-interceptor-collapse.

Latest News

graphic with meeting times

Second Meeting Scheduled in Bethesda; Community Forum in Alexandria Next Week

As DC Water nears completion of emergency repairs on the Potomac Interceptor sewer line, we remain committed to transparent communication and partnership with our community. Next week, two meetings are scheduled on March 18, in Bethesda, MD and March 19, in Alexandria, VA to hear from the community and provide informational updates.

Photo of PI ready for return of flow
  • DC Water has completed final site preparations to return the flow to the Potomac Interceptor, marking and important milestone after 33 consecutive days without an overflow to the Potomac River.
  • The ...
Collapse site with equipment idle due to weather conditions
  • Environmental Rehabilitation and Emergency Repair work on the Potomac Interceptor sewer line was slowed by rain and snow, as we enter day 33 without an overflow into the Potomac River.
  • When there are ...

Upcoming Meeting

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Monday 9:00 AM

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If you bike, drive, or walk through Georgetown, we’ve got changes starting this week around the Potomac River Tunnel construction on Water Street NW. The Capital Crescent Trail has a new temporary detour through Georgetown Waterfront Park, open now for cyclists between 33rd and Potomac streets NW.

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