Blue-green Algae in California
8 confirmed blue-green algae reports in California, none currently active. About this disease: symptoms and prevention.
8
Reports on record
0
Currently active
0
Last 7 days
0
Last 30 days
Where in the state
1
1
1
1
1
1
1
Recent reports
Blue-green Algae
Historical · Jul 30, 2026
Navarro
Two toxic-algae advisories on the Navarro River in July 2026; pinned at Navarro River Redwoods State Park
Source ↗Blue-green Algae
Historical · Jul 29, 2026
Scotia, Humboldt County
Eel River near Scotia, dog died after swimming in a stagnant side pool
Source ↗Blue-green Algae
Historical · Jun 24, 2026
Lake Isabella, Kern County
Lake Isabella (Stine Cove)
Source ↗Blue-green Algae
Historical · Jun 10, 2026
Tulelake, Siskiyou County
Tule Lake NWR (Donut Hole)
Source ↗