Rockport Reservoir Algal Bloom Monitoring 2020

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 November 2, 2020

The Warning Advisory for Rockport Reservoir has been removed as a result of the end of the sampling and monitoring recreation season.

The Utah Division of Water Quality’s water recreation season runs from May 1 through October 31. At this time, no further monitoring or sampling for harmful algal blooms or waterborne pathogens at priority water bodies will be conducted until May 2021.

This does not mean that the potential for harmful algal blooms or waterborne pathogens has ceased. Please remain aware while recreating in or near water bodies and for information on how to keep yourself, your family, and your pets safe, please visit:

• Protect Yourself During Harmful Algal Blooms
• Protect Yourself: Waterborne Pathogens

Update September 21, 2020

Summit County Health Department has issued a Warning Advisory for Rockport Reservoir.

Toxigenic cell count density results from samples taken on September 16, 2020 were delivered by Phycotech on September 21, 2020. Results show toxigenic cell count densities more than 10 times greater than the DWQ/DOH Recreational Health Threshold for an advisory.

Cyanotoxin results delivered from UDAF lab show microcystin concentrations below detection.

Update September 17, 2020

On September 16, 2020, the DWQ HABs monitoring team visited Rockport Reservoir. The monitoring team observed a harmful algal bloom at the reservoir that appeared as grass clippings and cottage cheese on or within the water surface and/or water column at the State Park at the Western beach, the State Park Marina Beach Boat Storage, and Highland Picnic Area. Cyanotoxin and cell density samples were collected and results are pending.