COVID-19: Offices of the Utah Department of Environmental Quality are open. In an effort to reduce the spread of COVID-19, we are limiting person-to-person contact. Please contact DEQ here to conduct business.

Piute Reservoir Algal Bloom Monitoring 2020

Due to state budget cuts, the harmful algal bloom program is being funded by EPA through a one-time grant. This limits DWQ’s monitoring to 18 priority waterbodies in Utah.

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.

Update August 19, 2020

Piute Reservoir was sampled on 8/11/2020 and had a cell concentration (21K cells/ml) of toxigenic cyanobacteria which is below the recommended advisory level (100K cells/ml). However, due to these levels a Health Watch remains.


Update August 14, 2020

  • August 5 cyanobacteria cell count results: 4747 cells/ml

Update July 9, 2020

Piute Reservoir is under a Health Watch after Utah State Park personnel observed surface and water-column cyanobacteria on July 3, 2020, near a swimming cove within the State Park. A Health Watch is not a formal advisory level but rather an indicator that a bloom may exist or become more severe based on available information from the DEQ Division of Water Quality (DWQ) and Department of Health. Indicators can include visual reports. The Central Utah Public Health Department and Utah State Parks have been notified.

DWQ plans to sample Piute Reservoir within the next seven days