Bear River Algal Bloom Monitoring 2018

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 August 14, 2018

Bear River August 1, 2018

The Division of Water Quality (DWQ) responded on August 1, 2018, to reports of a bloom on the Bear River. The monitoring crew observed a thick bloom in the slow-moving river and met with the Bear River Health Department to coordinate efforts. The crew collected two samples from the Bear River near Corinne: one surface sample and one elbow-depth, integrated composite sample.

Strip test results were non-detect or invalid for anatoxin-a and microcystin. Sample analysis by the Utah Department of Agriculture and Food (UDAF) lab found <0.1 micrograms per liter (µg/L) of microcystin in the surface sample and 0.1 µg/L in the integrated sample. Both sample results fall well below the recreation health-based threshold. DWQ is waiting to hear back from the lab for cyanobacteria cell-count concentrations and taxa identification.