Tag: Porcupine Reservoir

Porcupine Reservoir is located approximately 4 miles east of Avon 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 Porcupine Reservoir monitoring information below. Updates November 1, 2025: Recreational water quality monitoring update Recreational water quality monitoring has…