Matt Warner Reservoir Recreational Monitoring 2021

Report a Bloom

24-Hour DEQ Environment Incidents Line: (801) 536-4123

Call Utah Poison Control Center

Poison Control (800) 222-1222

If you believe you or your pet have been exposed to a harmful algal bloom, call (800) 222-1222.

Update July 22, 2021 (Waterborne Pathogens/HABs)

On July 20th, Tri-County Health Department visited Starvation Reservoir. Samples from near Knights Hollow, Indian Bay Day Use Areas, and the Day Use Area did not contain E. coli above recreational thresholds. Routine sampling will continue monthly.

The DWQ HABs monitoring team visited Starvation Reservoir on July 21st for routine monitoring. Harmful algal blooms were not observed at the day-use area, the Indian Bay day-use area, or Knights Hollow. Cyanotoxin and cell density samples were not collected. Routine monitoring will continue monthly.


Update June 24, 2021 (HABs)

The Tri-County Health Department has issued a Warning Advisory for Matt Warner Reservoir.

Samples taken from the reservoir on June 18th contained toxigenic cyanobacteria cell densities at 106,910 cells/mL, which is above the UDWQ/UDOH recommended Warning Advisory threshold of 100,000 cells/mL.

Keep yourself, your family, and your pets safe during a harmful algal bloom.


Update June 18, 2021 (HABs)

The Tri-County Health Department has issued a Health Advisory for Matt Warner Reservoir.

Note: This is not a formal advisory level but rather an indication that a bloom may exist or become more severe based on available information from Utah DWQ and Utah Department of Health.

The DWQ HABs monitoring team visited Matt Warner Reservoir. Harmful algal blooms were observed at every site visited. Cyanotoxin and cell density samples were collected, and results are pending. DWQ will continue to watch Matt Warner Reservoir closely and post updates.

Keep yourself, your family, and your pets safe during a harmful algal bloom.


Update June 2nd, 2021 (HABs)

The Division of Water Quality and the Utah Department of Health began monitoring for harmful algal blooms on June 1st, 2021. As UDWQ and UDOH continue to visit and monitor waterbodies, updates will be posted.