What lies beneath?

June 19, 2008

Drinking water is a critical public service and one that most of us take for granted. We expect it to be there when we turn on the tap or flush the toilet. Not many of us think about the 1,300 miles of pipelines and the 36,000 valves that bring the water to us. They’re out of sight, out of mind. At least until there’s a problem, like a water main break that could damage roadways, cause traffic delays and put homes and businesses out of water until repairs are made.
According to the American Water Works Association (AWWA), much of our drinking water infrastructure was constructed between 80 and 100 years ago, and the cost of repairing and replacing these aging pipelines ranges between $280 to $400 billion. That means we will pay more for water, and it’s an investment worth making.
Much of the District’s water system is made out of cast iron pipes, some of which are more than 100 years old. Since its creation in 1996, DC WASA has made significant progress in stabilizing the city’s water infrastructure. But, there’s much more to be done. In its 10-year Capital Improvements Program, DC WASA plans to spend more than $600 million on water system improvements.
Out of sight, out of mind doesn’t work for infrastructure; not for the maze of pipelines, much of which were laid before most of us were born, that delivers a product that’s critical to our health, public safety, and quality of life.

Latest News

Picture of frozen water pipes with icicles hanging off of them

With December getting off to a near-record cold start now is the time to act. Winter weather can bring risks like frozen pipes, water main breaks, and other emergencies that can disrupt your water service. Don’t wait for something to happen. DC Water encourages customers to prepare now and know what to do if the unexpected happens.

Worker on side of steep slope

TRAFFIC ADVISORY - CLEAN RIVERS - POTOMAC RIVER TUNNEL PROJECT

DC Water is in the final stretch of its slope stabilization project along Canal Road NW, a critical project that will pave the way for Potomac River Tunnel construction at this site. Beginning, the week of December 15, 2025, one westbound lane of Canal Road will be closed during daytime, off-peak hours on weekdays and Saturdays to hydroseed the slope.

Image of Wendy with EPA Letter

DC Water is reaching out to nearly 25,000 customers this month with important information about the material of their water service lines. These annual notifications are part of DC Water’s ongoing commitment to prevent exposure to lead and remove lead service lines from the District’s drinking water system through the Lead Free DC initiative.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Worker on side of steep slope
Canal Road Slope Stabilization Project Nears End; Off-peak Lane Closure to Replant Slope

TRAFFIC ADVISORY - CLEAN RIVERS - POTOMAC RIVER TUNNEL PROJECT

DC Water is in the final stretch of its slope stabilization project along Canal Road NW, a critical project that will pave the way for Potomac River Tunnel construction at this site. Beginning, the week of December 15, 2025, one westbound lane of Canal Road will be closed during daytime, off-peak hours on weekdays and Saturdays to hydroseed the slope.

Latest Blog Post
A helicopter lowers a drill rig to workers on the Potomac River.
DC Water begins drilling in Potomac River to explore options to rehab underwater sewer line
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.
Upcoming Meeting

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 40% of the last 3 payments made and in the new fiscal year 50% will be credited. Eligible participants are residential customers who have had an outstanding balance for 60 days or greater and with an outstanding balance of $500 or more.