Incoming storm to help rinse Potomac after sewage leak: DC Water

Published March 16, 2026 2:42pm ET



Heavy rains expected Monday may help environmental recovery following a historic raw sewage spill in the Potomac River.  

On Jan. 19, a section of the Potomac Interceptor sewage line collapsed, releasing hundreds of millions of gallons of raw sewage into the river. DC Water announced on Saturday that repairs to the line were complete and that wastewater was now flowing safely through the pipe. 

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