County Lifts Potomac River Health Advisory After Sewage Leak

Montgomery County DHHS Health Officer Dr. Kisha Davis announced on May 18, 2026 that the health advisory for the Potomac River has been lifted following the Potomac Interceptor collapse and sewage leak, as ongoing water monitoring shows bacterial concentrations have returned to acceptable EPA limits. Recreational activities such as kayaking and rowing may resume on the river, but a partial health advisory remains in effect for shoreline areas between Lock 11 and Minnie's Island due to contaminated soil and sediment. Residents are advised to avoid contact with shoreline sediment, keep children and pets away from affected banks, and practice immediate hygiene if exposure occurs.