Watch: Crews divert sewer water, clean up after wastewater break into Potomac River

Watch: Crews divert sewer water, clean up after wastewater break into Potomac River

A section of Potomac Interceptor sewer line pipe collapsed on Jan. 19, 2026, in Montgomery County, Maryland, causing more than 200 million gallons of wastewater to flow into the Potomac River. Crews have been working to clear debris and clean up so repairs can begin.