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DC mayor declares emergency, asks President Trump for help on sewage spill on the Potomac

Mayor Bowser seeks federal aid after a 72-inch sewer pipe collapse released over 240 million gallons of raw sewage, causing elevated pathogen levels and ecological concerns.

  • On Wednesday, D.C. Mayor Muriel Bowser declared a local public emergency and formally requested a Presidential Emergency Disaster Declaration from President Donald Trump.
  • The 72-inch Potomac Interceptor collapsed on Jan. 19, sending more than 240 million gallons of raw sewage into the C&O Canal and Potomac River.
  • Crews installed pumps, pipes, earthen barriers near Lock 10, and are building an enhanced bypass system to divert sewage; University of Maryland testers found E. coli up to 10,000 times safe levels and fecal bacteria over 2,700 times safe limits.
  • The city is seeking 100% reimbursement for costs incurred by the District and DC Water, while the District Department of Energy and Environment has expanded water-quality monitoring and the Environmental Protection Agency leads regulation.
  • DC Water expects emergency repairs to take four to six weeks once the bypass is activated, with nine to ten months of rehabilitation and a potential $250 million long-term cost.
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A spill of almost 900 million litres into the Potomac River alerted Washington D.C. after the massive discharge of untreated waste contaminated water. The episode, considered the largest of its kind registered in the United States, triggered a federal intervention against environmental and health risk. Since January 19, 2026, more than 900 million litres of waste have been released to the main river course that crosses the U.S. capital. The magn…

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Axios broke the news in Washington, United States on Wednesday, February 18, 2026.
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