Montgomery County Executive Marc Elrich announced on Aug. 5, 2026 that the health advisory for the remaining portions of the Potomac River has been lifted. The announcement was made during Elrich's weekly media briefing. No additional details about the cause or duration of the advisory were included.
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Source: Media Advisory - Montgomery County, MD, “Montgomery County Executive Marc Elrich's Weekly Media Briefing at 12:30 p.m. on Wednesday, Aug. 5: State of Public Health, Back to School Immunizations, Special Session on Redistricting, Remaining Potomac River Health Advisory Lifted”, received Aug 5, 2026.
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Key dates
2026-08-05
effective — Remaining Potomac River health advisory lifted.
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