We keep the District's Water Flowing
DC Water distributes drinking water and collects and treats wastewater for more than 700,000 residents and 21.3 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 Maryland, and Fairfax and Loudoun counties in Virginia. We are proud to provide these vital, safe, and high-quality services to our customers while also protecting and enhancing our environment.
To distribute drinking water, DC Water operates more than 1,300 miles of pipes, four pumping stations, four reservoirs, four elevated water storage tanks, 43,860 valves and 9,510 public hydrants. To collect wastewater, DC Water operates 1,900 miles of sanitary and combined sewers, 22 flow-metering stations, and nine off-site wastewater pumping stations. To treat wastewater, DC Water operates the Blue Plains Advanced Wastewater Treatment Plant, the largest advanced wastewater treatment facility in the world.
If you're a DC Water customer and have questions about your service, please visit our online Customer Center or call Customer Service at 202-354-3600.