Blue-green Algae in Idaho
4 confirmed blue-green algae reports in Idaho, none currently active. About this disease: symptoms and prevention.
4
Reports on record
0
Currently active
0
Last 7 days
0
Last 30 days
Recent reports
Blue-green Algae
Historical · Aug 18, 2026
Grasmere
Grasmere Reservoir, Owyhee County; DEQ advisory 8/18
Source ↗Blue-green Algae
Historical · Aug 18, 2026
Bruneau
CJ Strike Reservoir, Bruneau Arm; DEQ advisory 8/18
Source ↗Blue-green Algae
Historical · Aug 5, 2026
Coeur d'Alene
Fernan Lake; Idaho DEQ health advisory 8/5, toxin-producing cyanobacteria over thresholds, in effect through recreation season
Source ↗Blue-green Algae
Historical · Aug 4, 2026
Hayden Lake
Hayden Lake north arm, Sportsman Park to McLeans Bay; DEQ advisory 8/4
Source ↗