August 20, 2026
Lahontan Reservoir, located within Lahontan State Recreation Area, has been placed under a HAB Danger Advisory due to high levels of cyanotoxins detected in recent water samples collected from the reservoir. This is the highest level of HAB advisory and should be taken seriously.
Water contact is not recommended. Children and pets should stay away from water bodies under a HAB Danger Advisory.
HAB conditions can change rapidly, and the movement and concentration of blooms can be unpredictable. The Nevada Division of Environmental Protection (NDEP) is monitoring the situation closely.
Exposure to cyanotoxins can cause health effects ranging from mild skin irritation to serious illness and, in rare circumstances, death. Symptoms may include skin rashes or irritation, respiratory or allergic-like reactions, abdominal pain, headache, vomiting, diarrhea, and neurological symptoms. Severe exposure may result in liver or kidney damage.
For more information on HABs, visit nevadahabs.org.
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