WASHINGTON — President Donald Trump on Monday directed the Federal Emergency Management Agency to lead the Potomac River sewage spill response after a collapsed sewer line in Maryland sent wastewater into the river upstream of the nation’s capital. The directive follows a Jan. 19 rupture of the Potomac Interceptor in Montgomery County, Md., that DC Water estimates has released about 243 million gallons of wastewater and prompted health warnings across the region, Feb. 17, 2026.
Potomac River sewage spill: what happened and where
The Potomac River sewage spill began when a 72-inch section of the Potomac Interceptor — a major pipeline that carries wastewater from parts of Maryland and Northern Virginia to the Blue Plains treatment plant — collapsed near the Clara Barton Parkway and the C&O Canal. DC Water said bypass pumping sharply reduced the discharge within days, but crews are still working to reach the damaged area and complete a permanent repair.
In an update on river conditions, DC Water said monitoring data show most of the overflow occurred early in the incident, with roughly 194 million gallons released in the first five days and peak discharge around 40 million gallons per day. The utility said E. coli levels downstream have generally fallen into the U.S. Environmental Protection Agency’s acceptable range for primary contact recreation since Feb. 1, while sampling in the drainage channel near the collapse site remains elevated.
What Trump ordered and what FEMA is expected to do
Trump said federal authorities will provide “all necessary Management, Direction, and Coordination” to protect the river and the capital region’s water supply, according to a Reuters report on the White House directive. The administration said FEMA will coordinate the federal response alongside environmental and public health partners.
In practical terms, FEMA’s role is likely to center on incident management support — helping unify the response across jurisdictions, surge staffing and logistics, and coordinate federal technical assistance — while state and local agencies and DC Water continue the hands-on repair and cleanup work.
Health and water-supply guidance for the region
District officials say drinking water remains safe, but they are urging the public to stay out of the river until conditions normalize. The District Department of Energy and Environment said residents should avoid unnecessary contact with Potomac River water, avoid fishing, and keep pets away while monitoring continues, according to its Potomac Interceptor update and FAQs.
Separate sampling by researchers has highlighted why agencies are being cautious. The University of Maryland School of Public Health said tests detected high levels of fecal-related bacteria and pathogens, including E. coli and an antibiotic-resistant strain of Staphylococcus aureus (MRSA), in findings summarized in its report on pathogens after the spill.
The Washington Aqueduct, which draws water from the Potomac and supplies wholesale drinking water to the region, said it has implemented precautionary measures and reported no impact to drinking water, according to a U.S. Army Corps of Engineers release.
Repairs, accountability and the path back to normal
DC Water said the Potomac River sewage spill repair has been slowed by difficult access conditions inside the interceptor, including a rock dam that restricts work near the collapse site. In a Feb. 6 update, the utility said its revised approach is expected to take four to six weeks and includes new bypass pumping and additional access points to complete the fix, as outlined in DC Water’s key findings on the overflow and river impact.
The Potomac River sewage spill has also become a political flashpoint. Maryland Gov. Wes Moore’s office has argued the federal government and the federally regulated utility bear responsibility for a rapid, transparent cleanup; in the Reuters report, a spokesperson said, “Apparently, the Trump administration hadn’t gotten the memo that they’re actually supposed to be in charge here.” Trump has criticized Democratic leaders for what he called a slow response.
Why this Potomac River sewage spill echoes years of warnings
For residents who have followed the region’s water-quality debates, the Potomac River sewage spill is an extreme example of a long-running challenge: aging infrastructure and wet-weather surges that can push sewage into waterways. In 2017, WTOP reported that heavy rain could still trigger raw sewage discharges into the Potomac and Anacostia rivers, even as tunnel projects were being built to capture overflows, in coverage of combined sewer overflow risks.
Across the river, Alexandria has spent years planning and permitting fixes for overflows that violate the Clean Water Act. The Washington Post detailed a milestone in 2018 when regulators approved the city’s plan to address sewer overflows into the Potomac, in a report on Alexandria’s sewer repair plan.
And in the District, deep-tunnel construction has already reduced combined sewage overflows to local waterways. Greater Greater Washington explained how the Anacostia River tunnel has kept billions of gallons of sewage out of the river, while noting that additional phases — including a Potomac tunnel — are meant to drive further reductions, in an overview of DC Water’s tunnel strategy.
What residents should watch for next
Until permanent repairs are complete and advisories are lifted, officials say the safest assumption is that the Potomac River sewage spill has left pockets of contamination in shoreline areas and drainage channels. Residents who boat, fish, paddle or walk dogs along the river should watch for local alerts, posted warning signs and updated sampling results, and avoid contact with river water in affected areas.
Regional agencies will continue to publish monitoring results as the cleanup moves from emergency response to longer-term restoration — and the Potomac River sewage spill is likely to intensify scrutiny of how quickly aging sewer assets are inspected, funded and replaced before the next failure.
