Starvation Reservoir Algal Bloom Monitoring 2019

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.

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Help us track cyanobacteria blooms with your smartphone. Go to cyanos.org for more info.

Update September 13, 2019

Starvation Reservoir, September 4, 2019

Starvation Reservoir, September 4, 2019

Test results for samples collected by the Division of Water Quality (DWQ) at the Indian Bay Day Use Area at Starvation Reservoir on September 4, 2019, showed a dramatic improvement in bloom conditions. Cyanobacteria cell counts and toxin test results were well below the recreation health-based thresholds for a Warning Advisory.

The Division of Water Quality (DWQ) monitoring crew observed small-particulate cyanobacteria resembling grass clippings in the water column. The water had a green hue.

Tri-County Health has removed the caution signs. Visitors are cautioned to be mindful of water conditions, as blooms may move or disperse depending on temperature, wind, and weather.

Data Summary

  • Sample Type: Elbow-depth integrated composite sample
  • Sample Date: September 4, 2019
  • Microcystin: 2.5 micrograms per liter (µg/L)
  • Anatoxin-a: Inconclusive
  • Cell Counts: 2,228 cells per milliliter (cells/mL)

Update August 30, 2019

Starvation Reservoir, August 30, 2019

On August 30, 2019, the Division of Water Quality (DWQ) received a report from Utah State Parks about a cyanobacterial bloom at Starvation Reservoir. The bloom appeared overnight and was observed at the dock and a play area. Boaters have also reported seeing the bloom in open water. Samples will be collected and delivered to the lab for toxin testing and cyanobacteria cell-count concentrations. The Tri-County Health Department has posted caution signs to alert the public of the presence of cyanobacteria in the reservoir

Starvation Reservoir remains open for recreation. It’s recommended that recreationists not swim or water ski in areas of scum, avoid boating in areas of scum, not ingest untreated water, and keep animals away from the water. Visitors are cautioned to be mindful of water conditions, as blooms may move or disperse depending on temperature, wind, and weather.