Air Quality
Drinking Water
Environmental Response and Remediation
Waste Management and Radiation Control
Water Quality
Executive Director’s OfficeReport 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.
Recreational water quality monitoring has ended for the season on November 4, 2022
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 how to recognize the signs of a harmful algal bloom, and learn how to protect yourself and your family, including dogs.
Monitoring for harmful algal blooms on September 20, 2022
OK, but be careful: Samples collected were below Utah Department of Health recreational thresholds – that’s good news! However, low numbers of harmful algae were present near Indian Bay and Knights Hollow. Know how to recognize the signs of a harmful algal bloom and avoid areas of algae scum when recreating.
Monitoring for harmful algal blooms on August 23, 2022
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom.
Sites Observed: Day use area, Knights Hollow Day Use Area, Indian Bay Day Use Area
Monitoring for waterborne pathogens on August 8, 2022
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling did not indicate the presence of illness-causing waterborne pathogens.
Sites Sampled: Knights Hollow Day Use Area, Indian Bay Day Use Area, Day Use Area
Monitoring for harmful algal blooms on July 28, 2022
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom.
Sites Observed: Day use area, Knights Hollow Day Use Area, Indian Bay Day Use Area
Monitoring for waterborne pathogens on July 27, 2022
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling did not indicate the presence of illness-causing waterborne pathogens.
Sites Sampled: Knights Hollow Day Use Area, Indian Bay Day Use Area, Day Use Area
Monitoring for harmful algal blooms on June 30, 2022
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom.
Sites Observed: Day use area, Knights Hollow Day Use Area, Indian Bay Day Use Area
Monitoring for waterborne pathogens on June 13, 2022
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling did not indicate the presence of illness-causing waterborne pathogens.
Sites Sampled: Knights Hollow Day Use Area, Indian Bay Day Use Area, Day Use Area
Monitoring for waterborne pathogens on May 31, 2022
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling did not indicate the presence of illness-causing waterborne pathogens.
Sites Sampled: Knights Hollow Day Use Area, Indian Bay Day Use Area, Day Use Area
The Division of Water Quality and the Utah Department of Health will monitor this site for waterborne pathogens and harmful algal blooms this summer, beginning in June 2022. We will share updates here.
