No Swim at Calder Reservoir

Fishing is still safe

Harmful Algal Blooms (HABs) are reported at Calder Reservoir.

Take action to stay safe, do not swim in Calder Reservoir water.

It is still safe to fish, kayak and boat at Calder Reservoir. If you do have contact with the HABs wash your skin. Keep contact with the water to a minimum. If anyone walks into the water to push a kayak in, it is recommended to wash thoroughly after contact.

The Utah Division of Environmental Quality (DEQ) has these recommendations to keep you safe.

How to protect yourself and your family

  • Comply with instructions on health advisory signs posted at waterbodies experiencing a harmful algal bloom.
  • Stay out of the water and avoid any contact with water or scums if you suspect a waterbody is experiencing a harmful algal bloom.

How to recognize a harmful algal bloom

Harmful algal blooms may look like pea soup, green or blue paint, or have a scum layer or mats/foam floating on the surface. The water may also appear in shades of green, blue-green, yellow, brown, or red.

How to report an exposure

Call the Utah Poison Control Center (UPCC) at (800) 222-1222 if you think you or your pet have been exposed to a harmful algal bloom. UPCC physicians, pharmacists, and nurses trained in toxicology can answer your questions and advise you on the need for further medical or veterinary treatment.

You can find more information about HABs here:

HABs Information