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Maybey Pond 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.

Get BloomWatch App

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

Update October 31, 2019

Toxin test results received from the Utah Public Health Lab (UPHL) for samples collected on October 17, 2019, and October 25, 2019, at Maybey Pond showed anatoxin-a and microcystin levels well below the recreation health-based threshold for a Warning Advisory. Cyanobacteria cell-count concentration results are pending from PhycoTech.

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.

Maybey Pond remains under a Warning Advisory pending cyanobacteria cell-count results.

Data Summary

Access

  • Sample date: October 25, 2019
  • Sample type: Elbow-depth integrated composite sample
  • Microcystin: <2.0 micrograms per liter (µg/L)
  • Anatoxin-a: <0.10 µg/L

Access

  • Sample date: October 17, 2019
  • Sample type: Elbow-depth integrated composite sample
  • Microcystin: <2.0 micrograms per liter (µg/L)
  • Anatoxin-a: <0.10 µg/L

Update October 4, 2019

On October 02, 2019, monitors from Davis County Health Department observed a cyanobacteria bloom on Maybey Pond and sampled for cyanotoxins and cyanobacteria cell-counts.

Samples were delivered to UPHL for toxin analysis and to PhycoTech for cell identification and concentration. Cell count results are expected sometime next week.

Toxin results were delivered on October 03, 2019 and showed anatoxin-a levels of 0.13 micrograms per liter (µg/) from the elbow-depth sample. These levels are above the recreation health-based threshold for a Warning Advisory.

The Davis County Health Department (DCHD) issued a Warning Advisory on Maybey Pond on October 4, 2019.

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.

Maybey Pond, October 2, 2019

Maybey Pond, October 2, 2019