The City of Laramie and the Wyoming Department of Health (WDH) are issuing a public advisory regarding the presence of a cyanobacteria bloom in the Laramie River, specifically in the vicinity of Optimist Park.

Cyanobacteria, commonly mistaken as algae, are microorganisms that can produce harmful toxins. Under certain conditions, these toxins can pose risks to humans, pets, and wildlife. Cyanobacteria blooms can give the water a greenish, bluish, or reddish appearance, often resembling surface scum or mats. Avoid contact with water that appears discolored or has visible algae.

Exposure to cyanobacteria toxins can cause skin irritation, eye irritation, respiratory issues, and gastrointestinal problems. Inhaling or ingesting affected water can be especially harmful. Keep pets away from affected areas as well.

The Wyoming Department of Health recommends the following for staying safe:

• Avoid contact with water in the vicinity of the bloom, especially in areas where cyanobacteria are dense and form scum.
• Do not ingest water from the bloom. Boiling, filtration, and/or other treatments will not remove toxins.
• Rinse fish with clean water and eat only the fillet portion.
• Avoid water spray from the bloom.
• Do not allow pets or livestock to drink water near the bloom, eat bloom material, or lick fur after contact.

If people, pets, or livestock come into contact with a bloom, rinse off with clean water as soon as possible and contact a doctor or veterinarian.

Signs will be posted at Optimist Park to alert the public about the cyanobacteria bloom and the associated health risks.

For more information, please contact Scott Hunter, Parks Manager, at (307) 721-5257.