Harmful cyanobacterial bloom (HCB) recreational use TOXIN ADVISORIES have been issued for Diamond Lake (Bosler Reservoir) and Wheatland 3 Reservoir. The Wyoming Department of Health (WDH) works cooperatively with the Wyoming Department of Environmental Quality to issue 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. The WDH is working directly with resource management agencies to ensure signs are posted at the reservoir. Additional details regarding advisories and other HCB resources can be found at WyoHCBs.org.
Bloom advisories are issued when a HCB is present and cyanotoxins 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 Chloe Schaub, Natural Resource Analyst, Wyoming Department of Environmental Quality, at chloe.schaub@wyo.gov or (307) 777-2592.
Current HCB Recreational Use Advisories*
Waterbody Name
|
Observation or Sampling Location(s)
|
Advisory Type
|
Date Issued
|
Alcova Reservoir
|
Okie Beach
|
Bloom
|
10/01/2024
|
Bighorn Reservoir
|
Horseshoe Bend Beach
|
Bloom
|
10/15/2024
|
Big Sandy Reservoir
|
Dam
|
Bloom
|
09/24/2024
|
Boysen Reservoir
|
Brannon Boat Ramp, Marina Campground, Sand Mesa Campground
|
Toxin
|
07/19/2024
|
Boysen Reservoir
|
Brannon Campground, Tamarask Campground
|
Toxin
|
08/15/2024
|
Boysen Reservoir
|
North Swim Beach
|
Toxin
|
09/17/2024
|
Brooks Lake
|
Middle of Lake
|
Bloom
|
08/06/2024
|
Brooks Lake Lodge Pond
|
Dock
|
Bloom
|
08/22/2024
|
Diamond Lake (Bosler Reservoir)
|
Northwest Access
|
Bloom
|
07/26/2024
|
Diamond Lake (Bosler Reservoir)
|
Northwest Access
|
Toxin
|
10/17/2024
|
Flaming Gorge
|
Firehole Beach
|
Bloom
|
09/05/2024
|
Fontenelle Reservoir
|
Fontenelle Creek Campground
|
Bloom
|
08/06/2024
|
Glendo Reservoir
|
Cluster Cove
|
Bloom
|
08/16/2024
|
Goshen Hole Reservoir
|
NW Campground
|
Bloom
|
08/22/2024
|
Granite Springs Reservoir
|
West Causeway
|
Bloom
|
08/13/2024
|
High Savery Reservoir
|
Dam, Boat Ramp, South Shore
|
Bloom
|
07/03/2024
|
Keyhole Reservoir
|
Rocky Point
|
Toxin
|
09/17/2024
|
Lake McKenzie
|
Dog Park Shore
|
Toxin
|
08/15/2024
|
Leazenby Lake
|
South Access
|
Toxin
|
07/22/2024
|
Meeboer Lake
|
Boat Ramp
|
Bloom
|
08/06/2024
|
Meeks Lake
|
Shore
|
Bloom
|
08/16/2024
|
Miller Lake
|
Dam
|
Bloom
|
07/10/2024
|
Ocean Lake
|
Long Point Ramp
|
Toxin
|
08/15/2024
|
Pathfinder Reservoir
|
Bishop’s Point Ramp
|
Toxin
|
10/03/2024
|
Rainbow Lake
|
Shore
|
Bloom
|
07/26/2024
|
Saratoga Lake
|
West Central Beach
|
Toxin
|
09/26/2024
|
Scab Creek Pond
|
Scab Creek Pond Campground
|
Bloom
|
08/29/2024
|
Scouts Pond
|
North Shore
|
Bloom
|
08/22/2024
|
Seminoe Reservoir
|
North Red Hills Ramp
|
Toxin
|
07/23/2024
|
Sloan Lake
|
South Beach
|
Bloom
|
08/22/2024
|
Twin Lakes 2
|
Shore
|
Bloom
|
09/26/2024
|
Upper Brooks Lake
|
Northeast Cove
|
Bloom
|
08/22/2024
|
Upper Jade Lake
|
South Shore
|
Bloom
|
10/01/2024
|
V Lake
|
West Shore
|
Bloom
|
08/16/2024
|
Virgin Lake
|
Southeast Shore
|
Bloom
|
08/22/2024
|
Viva Naughton Reservoir
|
East Ramp
|
Bloom
|
09/24/2024
|
Wheatland Reservoir 1
|
Northwest Ramp
|
Bloom
|
07/18/2024
|
Wheatland Reservoir 3
|
Northwest Ramp
|
Toxin
|
10/17/2024
|
Wind River
|
Below Dam
|
Toxin
|
09/17/2024
|
Wind River
|
Upper Campground
|
Toxin
|
08/15/2024
|
Woodruff Narrows
|
North Shore
|
Bloom
|
07/18/2024
|
|