Blue-green Algae in Pennsylvania
10 confirmed blue-green algae reports in Pennsylvania, 1 still active. About this disease: symptoms and prevention.
10
Reports on record
1
Currently active
0
Last 7 days
1
Last 30 days
Where in the state
3
1
1
1
1
1
1
Recent reports
Blue-green Algae
Active · Aug 21, 2026
Lehighton
Beltzville State Park, Carbon County; HAB advisory issued 8/21 after 8/10 sampling at the Preachers Camp Trail boat launch found 286,010 cyanobacteria units
Source ↗Blue-green Algae
Historical · Jun 30, 2026
Mount Gretna, Lebanon County
Ebenezer / Union Canal Dam
Source ↗Blue-green Algae
Historical · Jun 29, 2026
Lewisberry, York County
Pinchot Lake (Gifford Pinchot SP)
Source ↗Blue-green Algae
Historical · Jun 24, 2026
Kleinfeltersville, Lancaster County
Middle Creek Reservoir
Source ↗Blue-green Algae
Historical · Jun 22, 2026
Wagontown, Chester County
Hibernia Lake (Hibernia Park)
Source ↗