Otter Creek 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 September 30, 2021 (HABs)

The DWQ HABs monitoring team re-visited Otter Creek Reservoir on September 29th. Harmful algal blooms were observed at the beach access. Cyanotoxin and cell density samples were collected and results are pending.


Update September 10, 2021 (Waterborne Pathogens)

On September 7th, the Central Utah Public Health Department visited Otter Creek Reservoir. Samples from the beach access did not contain E. coli above recreational thresholds. Routine sampling will continue monthly.


Update August 6, 2021 (HABs)

Samples taken from the reservoir on August 3rd contained toxigenic cyanobacteria cell densities at 156 cells/m, which is well below the UDWQ/UDOH recommended Warning Advisory threshold of 100,000 cells/mL. Routine monitoring for HABs will continue monthly.


Update August 4, 2021 (HABs)

The Warning Advisory for Otter Creek State Park has been removed by the Central Utah Public Health Department.

Otter Creek reservoir has had two weeks of toxigenic cyanobacteria cell density results below the UDWQ/UDOH recommended Warning Advisory threshold of 100,000 cells/mL.

Although the Warning Advisory has been removed, please remain vigilant and if you see signs of a bloom, stay out of the water and call the 24-Hour DEQ Environment Incidents Line: (801) 536-4123.


Update July 28, 2021 (Waterborne Pathogens/HABs)

The Warning Advisory for Otter Creek State Park remains in place.

The DWQ HABs monitoring team re-visited Otter Creek Reservoir on July 27th. Harmful algal blooms were observed east of the SR62 turnoff at mp 15.7. Cyanotoxin and cell density samples were collected and results are pending.

On July 19th, the Central Utah Public Health Department visited Otter Creek Reservoir. Samples from the beach access did not contain E. coli above recreational thresholds. Routine sampling will continue monthly.


Update July 22, 2021 (HABs)

The Warning Advisory for Otter Creek State Park remains in place.

The DWQ HABs monitoring team visited Otter Creek Reservoir on July 19th. Harmful algal blooms were not observed. Cyanotoxin and cell density samples were collected and results are pending. UDWQ will continue to monitor Otter Creek Reservoir closely.


Update July 15, 2021 (HABs)

A Warning Advisory has been issued for Otter Creek State Park by the Central Utah Health Department.

Toxigenic cyanobacteria cell density results for samples taken from the State Park beach on 7/14/2021 were delivered on 7/15/2021. They show cell counts at 448,017 cells/mL of Gloeotrichia, a known toxin producer. Cell densities are above the UDWQ/UDOH recommended Warning Advisory threshold of 100,000 cells/mL.

Otter creek water with harmful algal blooms in it.

Otter Creek, July 14, 2021


Update July 8, 2021 (Waterborne Pathogens)

On June 28th, the Central Utah Public Health Department visited Otter Creek Reservoir. Samples from the beach access did not contain E. coli above recreational thresholds. Routine sampling will continue monthly.


Update June 9, 2021

The DWQ HABs monitoring team visited Otter Creek Reservoir on June 8th. Harmful algal blooms were not observed at the South Point Beach Access, East Side, or south of Citizen Point. Cyanotoxin and cell density samples were not collected. As UDWQ and UDOH continue to visit and monitor waterbodies, updates will be posted.


Update June 2, 2021

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