Big Sand Wash Reservoir is located north of Upalco in Duchesne County. DEQ’s recreational water quality monitoring checks for two health concerns: Harmful Algal Blooms (HABs) and Waterborne Pathogens (E. coli). Find the most recent Big Sand Wash 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 22, 2024: Waterborne pathogen (E. coli) 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.
Sites sampled: Boat ramp
September 24, 2024: Waterborne pathogen (E. coli) 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.
Sites sampled: Boat ramp
August 27, 2024: Waterborne pathogen (E. coli) 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.
Sites sampled: Boat ramp
July 10, 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: Boat ramp
June 10, 2024: Waterborne pathogen (E. coli) 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.
Sites sampled: Boat ramp
May 23, 2024: Waterborne pathogen (E. coli) 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.
Sites sampled: Boat ramp