DC Water

DC Water. The District of Columbia Water and Sewer Authority, provides drinking water, wastewater collection, and treatment for Washington, D.C., and wholesale wastewater services for several surrounding jurisdictions in Maryland and Virginia. It operates one of the largest advanced wastewater treatment plants in the world and maintains a vast network of underground infrastructure. The utility is known for pioneering large-scale environmental projects, including the Clean Rivers Project, to improve the health of the Potomac River and Anacostia River.

History

The origins of the modern system trace back to the Washington Aqueduct, authorized by Congress in 1852 and constructed by the U.S. Army Corps of Engineers. Following the public health crises of the mid-19th century, the Board of Public Works, under the leadership of Alexander Robey Shepherd, embarked on a massive sewer construction project in the 1870s. For over a century, water supply remained under federal purview while sewer services were managed by the District of Columbia government. This changed in 1996 when the District of Columbia Water and Sewer Authority was created as an independent, regional authority through an act of the Council of the District of Columbia. This restructuring consolidated the previously separate functions and established the framework for addressing longstanding challenges with combined sewer overflows into local waterways.

Services and operations

The agency provides treated drinking water sourced from the Potomac River to over 700,000 residents and daily commuters within the District of Columbia. It also collects and treats wastewater from the district and from partner agencies in Montgomery County and Prince George's County in Maryland, as well as Fairfax County and Loudoun County in Virginia. Key operational facilities include the historic McMillan Reservoir and the Washington Aqueduct filtration plants. Customer services encompass billing, emergency response for water main breaks, and maintenance of over 1,300 miles of sewer pipelines. The utility also manages a robust capital improvement program to modernize its aging systems.

Infrastructure

The core of the drinking water system is the federally owned Washington Aqueduct, which includes the Dalecarlia Reservoir and treatment facilities. DC Water’s distribution network consists of thousands of miles of pipes, valves, and fire hydrants. For wastewater, the monumental Blue Plains Advanced Wastewater Treatment Plant, located in Southwest Washington, D.C., is a cornerstone of the region's infrastructure, with a capacity of over 300 million gallons per day. The system also includes major pumping stations like the Northeast Boundary Pumping Station and an extensive network of interceptor sewers. A landmark engineering project is the Anacostia River Tunnel, part of the larger Clean Rivers Project designed to capture combined sewage.

Environmental initiatives

To comply with a consent decree from the U.S. Environmental Protection Agency, DC Water launched the multi-billion dollar Clean Rivers Project, one of the largest civil works programs in North America. A flagship component is the DC Clean Rivers Project Tunnel System, which includes deep tunnels under the Anacostia River and Potomac River. The utility has also become an energy producer through its Blue Plains Innovations Center, which features a massive thermal hydrolysis facility that converts biosolids into renewable energy. This process, branded as Bloom®, produces a Class A fertilizer product and significantly reduces the plant's carbon footprint.

Leadership and governance

The authority is governed by an 11-member Board of Directors, with appointments made by the Mayor of the District of Columbia, the councils of the participating Maryland counties, and the governors of Virginia and Maryland. Day-to-day operations are managed by a General Manager and CEO. The utility works closely with federal partners including the U.S. Army Corps of Engineers and the Environmental Protection Agency, as well as with the District Department of Energy & Environment. Its operations and major capital projects are subject to oversight from the District of Columbia Public Service Commission and are funded through customer rates and municipal bonds.

Category:Water companies of the United States Category:Government of the District of Columbia Category:1859 establishments in Washington, D.C.