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Blue Marsh Lake now in harmful algal bloom advisory status

Blue Marsh Lake is now in a Harmful Algal Bloom Advisory Status according to a post on social media.

Visitors are asked to please be aware of the presence of moderate levels of blue-green algae in the lake and the potential for harmful toxins to be present.


Photo: Blue Marsh Lake


Visitors are advised to be alert for harmful algal bloom conditions and to avoid contact with discolored water or scum. Algal blooms at Blue Marsh Lake occur annually, however environmental and lake conditions during the summer season enable the algal blooms to become potentially harmful.



Photo: Blue Marsh Lake



To protect yourself, your family, and your pets from blue-green algae blooms:

• Avoid water contact in areas where the water is discolored or where you see foam, scum, or mats of algae on the water’s surface. • Children and pets are especially susceptible to the harmful effects of the toxins produced by blue-green algae. Do not allow children or pets to play in or drink scummy water. • If you have contact with water that might contain harmful cyanobacteria, rinse off with fresh water as soon as possible afterwards.

• Learn more about Harmful Algae Blooms and their associated risks by visiting https://www.nap.usace.army.mil/Missions/Civil-Works/Blue-Marsh-Lake/Harmful-Algal-Bloom-Information/

For additional information, please contact the Park Office at 610-376-6337.

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