The 2004 Water Quality Report is Now Available

June 23, 2005

The Water Quality Annual Report summarizes information about the District of Columbia’s drinking water. The information is broad, covering the source water supply, contaminants detected in the source water and treated water, compliance with drinking water regulations, as well as WASA’s latest operation improvement programs. Click on the links below to view the 2004 Water Quality Report, the Supplemental Monitoring Report, and Perchlorate Monitoring Information.

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.