Cinque Terre

DC Water


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About Us

DC Water is an industry leader because of the caliber of our employees. We are thinkers and leaders.

We are innovators and problem-solvers. Every day we're helping to solve the environmental challenges of the nation's capital. We take pride in our work. Join us.

Organization Mission

Exceed expectations by providing high quality water services in a safe, environmentally friendly, and efficient manner.

Organization Awards and Distinctions

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Headquarters Location

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Organization Size

1000+ employees

Year Founded


Services Provided

DC Water distributes drinking water and collects and treats wastewater for more than 672,000 residents and 17.8 million annual visitors in the District of Columbia. DC Water also provides wholesale wastewater treatment services for 1.6 million people in Montgomery and Prince George's counties in MD, and Fairfax and Loudoun counties in VA.


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Licensed Professional Engineer(s) in house?


Our Commitments

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This is Our Story...

In the early history of Washington, DC, water and sewer operated as separate entities. Early incarnations of the agency we now call DC Water included the District of Columbia Water Board (1859-1872) and the District of Columbia Board of Public Works (1872-1932).

Beginning in 1932, the Agency operated as the District of Columbia Department of Sanitary Engineering and constructed the first sewage treatment plant at Blue Plains. The Agency went through another transition to the District of Columbia Department of Environmental Services in 1971, then operated as the Water and Sewer Utility Administration (WASUA) under the Department of Public Works from 1985 to 1996.

On April 18, 1996, following a 30-day Congressional review period, the District Council enacted DC Law 11-111, "The Water and Sewer Authority Establishment and Department of Public Works Reorganization Act of 1996." It was at this time that the District Government initiated the creation of the District of Columbia Water and Sewer Authority (DC WASA), an independent authority of the District of Columbia providing services to the region.

Among other operational changes, DC WASA's finances were no longer tied to the District's overall budget. This marked a positive change for the organization and its customers since every dollar collected by DC WASA could then be reinvested into operations and capital improvements.

Like many older East Coast cities, Washington, DC's aging water and sewer infrastructure was in dire need of major renovations and general maintenance. Here, DC WASA began a renewal period to improve delivery of water and wastewater treatment services to the District and regional customers and to improve and replace the water and sewer infrastructure.

In 2010, DC WASA initiated a rebranding campaign and is now known as DC Water. DC Water has evolved through the years and remains true to it's core mission of providing safe, clean water to the residents of the District of Columbia and surrounding areas.


Add DC Water in the team section on any project and the project will automatically show up here.

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Blue Plains Tunnel

Blue Plains Advanced WWTP, Overlook Avenue Southwest, Washington, DC, USA

Role on Project


A Closer Look at What We Did

The Blue Plains Tunnel was the first of DC Water's large tunnel contracts to go to construction. "Lady Bird" Tunnel Boring Machine, the First Lady of Clean Rivers, constructed 24,300 linear feet of reinforced concrete tunnel as part of the project.

Link: Organization Project Page

Project Awards

  • ENR 2016 Best Project of the Year - DC Water; CH2M; Traylor, Skanska, Jay Dee Joint Venture (TSJD); Greeley and Hansen; McMillen Jacobs Associates; EPC Consultants; Leyden Electric; Bencor Corp. of America; Bulldog Construction; ConSeg JV/Bay State Precast; EMC2 Engineers; Herrenknecht Tunneling Systems; Kroner Environmental Services Inc.; WISKO America Inc.

First Street Tunnel

2036 First Street Northwest, Washington, DC, USA

Role on Project


A Closer Look at What We Did

The First Street Tunnel project is a major component of the Clean Rivers Project, designed to mitigate sewer flooding and basement backups in the District’s historic and densely populated Bloomingdale neighborhood. Bloomingdale and its surrounding neighborhoods have been historically affected by sewer flooding and were severely impacted by four storms in the summer of 2012 that caused significant damage to homes, the environment and public property. As a result, DC Water and the District accelerated the design and construction of the First Street Tunnel in order to mitigate the effect storms have on the undersized sewers serving the neighborhood.

Link: Organization Project Page

Organization Media

DC Water Names First Street Tunnel.s New Tunnel Boring Machine in April 14 Ceremony - DC WaterVideo - First Street Tunnel Tunnel Boring Machine Naming Ceremony

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