The Natrona County Health Department, as well as the Wyoming Department of Health and the Wyoming Department of Environmental Control have issued advisories for both Pathfinder Reservoir and the Bishop Point Campground area because of 'higher than normal' levels of cyanobacteria, also known as harmful algae blooms.
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A statement from the Casper- Natrona County Health Department said that harmful cyanobacterial blooms (HCB's) pose a risk to humans, pets, and livestock.
Under normal conditions, when HCBs are present at low levels, they play an important role in the ecosystems of aquatic life. The statement notes that cyanobacteria becomes visibly abundant and resembles grass clippings, blue-green scum, or spilled paint on the water service.