Recreational water quality monitoring has ended for the season. We will resume monitoring for harmful algal blooms and waterborne pathogens in summer 2023. HABs may be present in Utah water bodies year-round. If you are recreating, avoid areas of scum, know what to look for, and learn how to protect yourself and your family, including dogs.
Please Note: This map provides current data on harmful algal blooms AND waterborne pathogens. DWQ does not monitor all the sites on the map for both types of contaminants.
Monitoring
Locations
Health
Watch
Advisory
Warning
Danger
Warning
Harmful algal blooms (HABs) develop when naturally occurring cyanobacteria in the water multiply very quickly to form green or blue-green water, scum, or mats. These blooms can produce potent cyanotoxins that pose serious health risks to humans, pets, and livestock.
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.
How To Stay Safe
- Don’t swallow water when swimming.
- Wash hands with clean water before eating or preparing food.
- Clean fish well and discard the guts.
- Keep animals away.
- Recognize the signs of a bloom, and when in doubt, stay out.
Visit HABs Photo Gallery
See examples of HABs in Utah in the photo gallery.
Protect Yourself
Learn about health risks to people and pets exposed to algal blooms and what you can do to recreate safely.
Learn About HABs
Got questions? Find more info about harmful algal blooms.
Contact Information
Dr. Hannah Bonner (hbonner@utah.gov)
Recreational Health Advisory Program Coordinator
(385) 258-6057