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N.D. (NewsDakota.com) – Officials with the North Dakota Department of Health, Department of Agriculture and the Animal Health Division have issued a blue-green algae advisory for Harvey Reservoir in Wells County.

The Department of Health reports that due to the presence of blue-green algae bloom on the lake and risk of microcystin in the water, animals and humans are being advised to avoid the reservoir.

“The public and local officials observed a blue-green algae bloom in Harvey Reservoir last week and notified the NDDoH,” the department stated. “In response, NDDoH staff investigated the bloom on Thursday and confirmed the presence of blue-green algae in the lake, along the swimming beach, and boat ramp areas.”

Signs have been posted by the Harvey Park District advising the public that blue-green algae is present and is dangerous to both people and animals.

The production of blue-green algae, also known as cyanobacteria, often happens during hot weather in bodies of water that are used by people, pets, and livestock. Exposure from ingesting affected water can cause illness in people and animals, and can result in death. There are no known antidotes for the toxins.

Blue-green algae discolor the water they live in, and can cause foam, scum, or mats to appear on the surface. People and animals that swallow water containing cyanotoxins can become sick with severe diarrhea and vomiting; numb lips; tingling fingers and toes; dizziness; or rashes, hives, or skin blisters. Children are at higher risk than adults for illness because their smaller size can allow them to get a relatively larger dose of toxin.

For more information, contact Mike Ell, North Dakota Department of Health, at 701-220-5025.