WASA Reschedules Public Meeting on River Cleanup Efforts

November 03, 2006

WASA has rescheduled the Combined Sewer Overflow (CSO) meeting at the Petworth Neighborhood Library located at 4200 Kansas Ave, NW for Monday, November 13, 2006 from 7-8 pm.

The meeting at the Southeast Neighborhood Library located at 403 7th St., SE will be held on the scheduled date of Thursday, November 9, 2006 from 7-8 pm

The meetings will include discussions with the community about WASAs $2.1 billion plan to control water pollution and flooding caused by the Districts combined sewer system.

A combined sewer is a single pipe that carries both sanitary wastewater and storm run-off. During certain rainfall conditions, the capacity of a combined sewer may be exceeded. When this occurs, the excess flow, a dilute mixture of wastewater and stormwater run-off (called Combined Sewer Overflow or CSO), is discharged to the Anacostia River, Potomac River, Rock Creek and tributary waters.

The presentations will focus on WASAs efforts to control this discharge and improve the environmental and economic health of the rivers and other bodies of water in the District. Current CSO activity taking place throughout the District will also be highlighted.

Everyone is invited to attend.

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View of Mary at bottom of shaft inside tunnel shown from above

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Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

View of Mary at bottom of shaft inside tunnel shown from above
DC Water Launches Tunnel Boring Machine Mary, Marking Important Step for Potomac River Tunnel Project

First turn of cutterhead signals the start of excavation for the Potomac River Tunnel Project

In a defining moment for one of the District’s largest infrastructure investments, DC Water has marked its next major milestone in the Potomac River Tunnel Project. The first tunnel boring machine, Mary, has launched her northbound journey breaking through the soil to signal the start of excavation.

With the first turn of Mary’s drill-like cutterhead underground, the machine pushed forward to begin tunneling, representing the transition from years of planning and preparation to active tunnel construction on the $819 million project.

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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.
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April 15, 2026
Wednesday, 9:30 AM

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