Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3419-B5
Where
Water Body Cayuga Lake
Latitude and Longitude 42.54113, -76.54949
Segment Lakeshore Segment Southeast 3: Salt Point Natural Area
County Tompkins
Extent Widespread
When
Bloom Reported October 04, 2025 04:00 PM
Bloom Sampled October 04, 2025 04:15 PM
Microscopic Examination October 08, 2025
What
Bloom Genera [1]
Microscopy Present Dominant
Dolichospermum
Microcystis

Bloom Chemistry
Total Microcystin and Nodularins (EPA 546) [2] 327.0 ug/L
Total Microcystin and Nodularins (EPA 546) [2] 327.0 ug/L
[1] Genera - plural of genus, a category of classification in biology that ranks between the family level and the species level. Because there are many different species of bacteria that are difficult to distinguish, it is more useful to classify bacteria by genus rather than species.
[2] Microcystin
Map of HAB event
Bloom Description

2025 PRIORITY SITE, Zone #3419: Salt Point Natural Area- identified by Tompkins County Whole Health as a sample-collection site. The volunteer reported: the bloom is one half mile north of Salt Point, along shoreline and at least 100 ft into open water. It's currently very warm and calm, HABs present everywhere we kayaked North of salt Point and at kayak area of Myers Park

Weather
Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp