- Do not swim or water ski in this area.
- Avoid areas of algae scum when boating.
- Keep animals away.
- Do not ingest the water.
- Clean fish well and discard guts.
Report a Bloom
24-Hour DEQ Environment Incidents Line: (801) 536-4123
Call Utah Poison Control Center
If you believe you or your pet have been exposed to a harmful algal bloom, call (800) 222-1222.Visit the 2019 Photo Gallery
Get BloomWatch App
Help us track cyanobacteria blooms with your smartphone. Go to cyanos.org for more info.
Update September 16, 2019
The Central Utah Public Health Department (CUPHD) issued a Warning Advisory for Piute Reservoir on September 16, 2019.
Toxin test results received from the Utah Public Health Lab (UPHL) for samples collected by the Division of Water Quality (DWQ) at the Boat Ramp at Piute Reservoir on September 10, 2019, showed anatoxin-a levels exceeding the recreation health-based threshold for a Warning Advisory. Microcystin levels and cyanobacteria cell-count concentrations were well below the advisory threshold. Aphanizomenon was the primary taxon in the samples.
The DWQ monitoring crew observed visible cyanobacteria that resembled grass clippings in the reservoir. The cyanobacteria were consistent throughout the water column.
A Warning Advisory indicates a moderate relative probability of acute health risk, cell-count density of 20,000 – 10 million cells per milliliter (cells/ml), microcystin levels of 4-2,000 micrograms per liter (µg/L), or anatoxin-a levels above non-detect.
- Sample type: Elbow-depth integrated composite sample
- Sample date: September 10, 2019
- Microcystin: <2.0 micrograms per liter (µg/L)
- Anatoxin-a: 0.15 µg/L
- Cyanobacteria cell counts: 1,660 cells per milliliter (cells/mL)