HAB Advisory

Harmful Algal Blooms

This page will be updated with information on current Harmful Algal Bloom sites within Nevada State Parks. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.

HAB Watch Advisories

The following water bodies, and State Parks, have been placed under HAB Watch Advisories:

Lahontan State Recreation Area

Lahontan Reservoir, located in Lahontan State Recreation Area, has been placed under a HAB Watch Advisory due to an active Harmful Algae Bloom.
A recent water test produced low algal toxin concentrations, and has been backed up by visual indicators and satellite imagery. These toxic algae can cause serious health issues for humans and animals.If you see water that looks discolored or smells bad, stay away. Pets should be kept away from all water bodies under a HAB advisory.

South Fork State Recreation Area

South Fork Reservoir located within South Fork State Recreation Area, has been placed under a HAB Watch Advisory due to possible a Harmful Algae Bloom (HAB). Visual assessments have indicated a possible bloom. Water tests and satellite imagery assessments are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.

Spring Valley State Park

Eagle Valley Reservoir, located within Spring Valley State Park, has been placed under a HAB Watch Advisory due to a possible Harmful Algal Bloom (HAB). Visual assessments have indicated a possible bloom. Water tests and satellite imagery assessments are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.

Washoe Lake State Park

Big Washoe Lake located within Washoe Lake State Park, have been placed under a HAB Watch Advisory due to a possible Harmful Algae Bloom (HAB). Visual assessments have indicated a possible bloom. Water tests and satellite imagery assessments are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.

Wild Horse State Recreation Area

Wild Horse Reservoir located adjacent to Wild Horse State Recreation Area, has been placed under a HAB Watch Advisory due to possible a Harmful Algae Bloom (HAB). Visual assessments have indicated a possible bloom. Water tests and satellite imagery assessments are currently being conducted by the Nevada Division of Environmental Protection (NDEP). These toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.

HAB Warning Advisories

The following water bodies, and State Parks, have been placed under HAB Warning Advisories:

Washoe Lake State Park

Little Washoe Lake located within Washoe Lake State Park, has been placed under a HAB Warning Advisory due to a confirmed Harmful Algae Bloom (HAB). Visual assessments, along with water tests, has indicated a toxic bloom. These assessments were conducted by the Nevada Division of Environmental Protection (NDEP). The toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away. For a full list of HAB sites in Nevada, go here. Learn more about HABs by visiting the NDEP page, here.