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Pinedale Online > News > July 2022 > Algae Bloom Advisory issued for Big Sandy and Eden Reservoirs in Wyoming
Algae Bloom Advisory issued for Big Sandy and Eden Reservoirs in Wyoming
Recreational Use Advisory in effect
July 15, 2022

The Wyoming Department of Health (WDH) has issued a harmful cyanobacterial bloom (HCB) recreational use Bloom Advisory for Big Sandy Reservoir and Eden Reservoir based on data provided by the Wyoming Department of Environmental Quality (DEQ). The WDH is working directly with resource management agencies to ensure that signs are posted at all waterbodies with advisories. Additional details regarding advisory status, including changes to the type of advisory, and other HCB resources can be found at WyoHCBs.org.

The WDH issues recreational use advisories when cyanobacterial cell densities or cyanotoxin concentrations pose a risk to people engaging in swimming or similar water contact activities in areas where cyanobacterial blooms occur. HCBs may also pose a health risk to animals. Bloom Advisories are issued when a HCB is present and toxins may be present. Toxin Advisories are issued when cyanotoxins exceed recreational thresholds. Waterbodies under an advisory are not closed since HCBs may only be present in certain areas and conditions can change frequently. Advisories will remain in place until blooms have fully dissipated and cyanotoxin concentrations are below recreational use thresholds identified in Wyoming's HCB Action Plan.

If you encounter a potential HCB, the Wyoming Department of Health and the Wyoming Livestock Board recommend the following:
Avoid contact with water in the vicinity of the bloom, especially in areas where cyanobacteria are dense and form scums.
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.

Questions about health effects and recreational use advisories can be directed to Courtney Tillman, Surveillance Epidemiologist, Wyoming Department of Health, at courtney.tillman@wyo.gov or (307) 777-5522. Questions regarding cyanobacteria sampling can be directed to Kelsee Hurshman, Natural Resource Analyst, Wyoming Department of
777-2073.

Current HCB Recreational Use Advisories
Waterbody Name Observation or Sampling Location(s) Advisory
Type Date Issued
Big Sandy Reservoir, East Dam Bloom, 07/14/2022
Eden Reservoir, South Outlet Bloom, 07/14/2022
Gillette Fishing Lake, South Shore Bloom, 06/08/2022
Goshen Hole Reservoir, NW Boat Ramp Bloom, 06/28/2022


Pinedale Online > News > July 2022 > Algae Bloom Advisory issued for Big Sandy and Eden Reservoirs in Wyoming

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