Blackridge Reservoir is located at 15000 South Ashland Ridge Drive (5390 West) in Herriman. DEQ’s recreational water quality monitoring checks for two health concerns: Harmful Algal Blooms (HABs) and Waterborne Pathogens (E. coli). Find the most recent Blackridge Reservoir monitoring information below.
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Updates
November 1, 2024: Harmful algal bloom (HAB) and E. coli monitoring update
Recreational water quality monitoring has ended for the season. Monitoring will resume in summer 2025. Harmful algal blooms can occur year-round, so know what to look for and always check before recreating.
October 15, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Beach area
October 15, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Beach Area
September 18, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Beach area
September 18, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Beach Area
August 26, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Beach area
July 31, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Beach Area
July 26, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Beach Area
June 24, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Beach area
June 24, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Beach Area
May 21, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Blackridge reservoir beach area