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Hyrum Reservoir Recreational Monitoring
Hyrum Reservoir is located south of Logan in Cache 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 monitoring information below. Updates: November 1, 2025: Recreational water quality monitoring update Recreational water quality monitoring has ended for the season. Monitoring…
