West Nile Virus Alert August 11, 2026 - The Denver Department of Public Health & Environment, in collaboration with the Colorado Department of Public Health and Environment, has detected West Nile virus in a Denver mosquito sample.
Blue-green Algae Alert July 6, 2026 - The Denver Department of Public Health & Environment has confirmed blue-green algae present at levels that may be toxic to humans and pets within Duck Lake and Green Valley Ranch Town Center Pond. People and pets are encourage to stay out of the water.