Notification of Temporary Water Supply Change in Northwest DC

November 18, 2014

The District of Columbia Water and Sewer Authority (DC Water) advises customers that live in parts of NW Washington, DC that their drinking water will temporarily be supplied by the Washington Suburban Sanitary Commission (WSSC) this Thursday, November 20, starting at 9 p.m. The impact area is shown on the attached map, which can be found at the following link: http://bit.ly/1xejulz. The temporary switch in water supply will last approximately 6 to 8 hours while DC Water makes a repair to the pump station that serves this area. Customers may notice a chlorine odor or taste in the water due to WSSC’s use of chlorine disinfection and the mixing of DC Water and WSSC water supplies. The stronger chlorine taste and smell should subside by Sunday, November 23. If the odor and taste persists after Sunday, DC Water recommends that customers call the Drinking Water Division at 202-612-3440. DC Water also advises customers that water pressure should remain constant, although a small increase is possible due to the temporary supply change.

Individuals and business owners who take special precautions to remove chloramine from tap water, such as dialysis centers, medical facilities and aquatic pet owners, should continue to take the same precautions during the temporary switch. Most methods for removing chloramine from tap water are effective in removing chlorine. Individuals with special health concerns should consult a health care provider on the use of tap water. Please share this information with everyone who drinks this water, especially those who may not receive this notice directly (for example, people in apartments, nursing homes, schools, and businesses).

For more information and updates, visit www.dcwater.com or contact DC Water Customer Service at 202-354-3600 or the 24-Hour Command Center at 202-612-3400.

Latest News

Photo of temporarily relocated section of Piney Branch Parkway

Following a 27-day closure, DC Water will reopen a section of Piney Branch Parkway between Arkansas Avenue and Beach Drive NW early Monday morning, restoring an important cross-town connection for thousands of District commuters. During the closure, a section of the road was temporarily relocated for construction of DC Water’s Piney Branch Tunnel Project.

Graphic saying BWA lifted and listing areas and map in Upper Northwest DC including some or all of the Chevy Chase DC, Friendship Heights, Tenleytown, AU Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, Glover Park, Wesley Heights, and Cathedral Heights

** Advisory is Lifted as of 9:00 P.M., June 6, 2026**

DC Water has lifted the precautionary Boil Water Advisory for parts of Upper Northwest DC after testing confirmed the water is safe to drink. All customers in the impacted area may use tap water for all purposes after following the instructions provided below.

Map of impacted areas in Upper Northwest areas in  Chevy Chase DC, Friendship Heights, Tenleytown, AU Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, Glover Park, Wesley Heights, and Cathedral Heights

Impacted neighborhoods include areas of Chevy Chase DC, Friendship Heights, Tenleytown, AU Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, Glover Park, Wesley Heights, and Cathedral Heights

The District of Columbia Water and Sewer Authority (DC Water) issued a Boil Water Advisory today for some customers in Northwest DC that experienced a loss of water pressure on Friday, June 5, 2026, impacting 4,970 customers.

Upcoming Meeting

Board of Directors Meeting

April 24, 2023

Monday 9:00 AM

Announcement

Photo of temporarily relocated section of Piney Branch Parkway
Piney Branch Parkway Section to Reopen Monday, Restoring a Key Route for DC Commuters

Following a 27-day closure, DC Water will reopen a section of Piney Branch Parkway between Arkansas Avenue and Beach Drive NW early Monday morning, restoring an important cross-town connection for thousands of District commuters. During the closure, a section of the road was temporarily relocated for construction of DC Water’s Piney Branch Tunnel Project.

Latest Blog Post
DC Water General Manager and CEO David Gadis recognizes Lily MacDonald during the May Board of Directors meeting.
From Classroom to Community: A Student Spotlight on DC Water's SPLASH Program
A speechwriting assignment became a call to action for water access and affordability through DC Water's SPLASH program.
Upcoming Meeting
Date
June 18, 2026
Thursday, 9:30 AM

Upcoming Events

Customer Service Center Announcement

Payment Plan Incentive: provides a credit back of 50% of the last 3 payments made. 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.