Spring Valley State Park (Updated: June 23, 2025)
Eagle Valley Reservoir, located in Spring Valley State Park, has been placed under a HAB Watch Advisory due to an active Harmful Algae Bloom. Visual assessments have indicated a possible bloom. Water tests are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals.
Washoe Lake State Park (Updated July, 29, 2025)
Big Washoe Lake, located in Washoe Lake State Park, has been placed under a HAB Watch Advisory due to an active Harmful Algae Bloom. Visual assessments have indicated a possible bloom. Water tests are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals.
Rye Patch State Recreation Area (Updated August 20, 2025)
Rye Patch Reservoir, located in Rye Patch State Recreation Area, has been placed under a HAB Watch Advisory due to a possible Harmful Algae Bloom. Visual assessments have indicated a possible bloom. Water tests are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals.
Lahontan State Recreation Area (Updated: July 1, 2025)
Lahontan Reservoir, located in Lahontan State Recreation Area, has been upgraded to a HAB WARNING Advisory. Visual and satellite imagery assessments have indicated an increase presence of Cyanobacteria. Water tests are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals.
SWIM AT YOUR OWN RISK
None at this time.
