Montgomery County has lifted all remaining health advisories for the Potomac River shoreline and river sediment after recent testing showed bacterial levels have returned to acceptable levels.
The Montgomery County Department of Health and Human Services announced the decision following a review of the latest sediment testing results provided by the Maryland Department of the Environment. The action removes the remaining contact advisory for the shoreline and river sediment between Lock 11 and the shoreline surrounding Minnie’s Island.
With the advisory lifted, residents may once again use the area for recreational activities.
County health officials noted that the Potomac River, like other natural bodies of water, naturally contains varying levels of bacteria. They continue to advise the public to avoid swallowing river water, particularly children, pets and individuals with underlying health conditions, who face a greater risk of bacterial infection.
Officials also cautioned that bacteria levels can increase significantly for 48 to 72 hours after heavy rainfall. Residents are encouraged to use extra caution following storms and to avoid exposing open cuts or wounds to river water or sediment, which can increase the risk of infection.
