Harmful algal bloom confirmed at Leazenby Lake, Wyoming
By Brendan LaChance on July 21, 2021
Harmful algal blooms at Leazenby Lake, Wyoming DEQ
CASPER, Wyoming – Damaging cyanobacterial algal blooms have been confirmed at Leazenby Lake, Wyoming, also known as Hundred Springs Reservoir. The lake is south of Laramie.
Due to the presence of the harmful algae, the Wyoming Department of Health issued a flower notice. The notice was released on Tuesday.
The dominant type of cyanobacteria confirmed at Leazenby Lake was Phormidium, according to the Wyoming Department of Environmental Quality. The density in the lake was 20,078 cyanobacteria cells per milliliter of water.
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“Harmful cyanobacteria blooms (HCBs) are dense concentrations of cyanobacteria, commonly referred to as blue-green algae, that pose a health risk to humans, pets, and farm animals,” states the Wyoming Department of Environmental Quality. “DEQ is working with the Wyoming Department of Health, the Wyoming Livestock Board and other stakeholders to combat HCBs in Wyoming’s surface waters.”
The Harmful Cyanobacterial Bloom (HCB) map in Wyoming shows that potential blooms in the Buffalo Bill Reservoir are being investigated.
While DEQ surveyed the Lake Shore Campground and Bartlett Lane areas of Buffalo Bill Reservoir on June 14 and found that the incidence of cyanobacteria was below recovery thresholds, DEQ said a possible bloom was again reported on July 12.
However, a Bloom Advisory for the Buffalo Bill Reservoir has not yet been issued.
Investigations into possible blooms at Alcova Reservoir, Flaming Gorge and Kendall Warm Springs have all been closed with no information on recreational use issued.
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