NATIONAL PARK SERVICE · news
Blue Mesa Water Quality Advisory – Toxic Algae Found August 2025
August 11, 2025 · Source: National Park Service
Throughout the summer, National Park Service staff sample and analyze the Blue Mesa Reservoir water for the presence of blue-green algae containing cyanotoxins. The latest testing revealed that concentrations of the harmful algae within the Iola Basin exceed public health safe exposure levels.
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Traveler guidance by State & Nation Staff Writer.