DC Water lifted a precautionary boil water advisory on Saturday, June 7, 2026, for nearly 5,000 customers in several upper Northwest Washington, D.
C. neighborhoods.
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Water quality tests confirmed the supply is safe for consumption, the utility company announced.
The advisory was issued after a temporary power outage on Friday, June 5, 2026, at the Fort Reno Pumping Station caused low water pressure.
Low pressure can lead to potential contamination through backpressure or backsiphonage, which may draw harmful substances into the water lines.
Consecutive laboratory tests over the weekend showed no signs of coliform bacteria, meeting all Environmental Protection Agency (EPA) standards for drinking water safety.
The disruption affected 4,970 customers across 11 neighborhoods: Chevy Chase D. C.
, Friendship Heights, Tenleytown, American University Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, Glover Park, Wesley Heights, and Cathedral Heights.
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The incident began around 12:00 p. m.
on Friday when the utility received complaints about poor water pressure, followed by a total power loss at the pumping station by 12:30 p.
m.
Engineers fully restored electrical power to the Fort Reno station by 1:26 p. m.
on Friday, but the advisory remained active through Sunday morning as a standard safety protocol while awaiting multi-day laboratory results.
Residents were instructed to flush their cold water taps for 10 minutes if they had not used water during the advisory, and to discard any food, beverages, or ice prepared with unboiled water during the incident.
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For more information, customers can contact DC Water Customer Service at 202-354-3600 or the 24-Hour Command Center at 202-612-3400.
