Harmful Algal Bloom Report

Bloom Code 25-3400-B2
Where
Water Body Cayuga Lake
Latitude and Longitude 42.796541, -76.76433
Segment Open Water 3: Cayuga Lake Mid-South
County Seneca
Extent Widespread
When
Bloom Reported July 09, 2025 10:00 AM
Bloom Sampled July 09, 2025 10:00 AM
Microscopic Examination
Map
Bloom Description

Community Member Reports: Post rain, this morning was small particles, quickly grew when sun came out. One of the largest blooms I’ve seen here. Part of western shoreline bloom event.