Harmful Algal Bloom Report

Bloom Code 26-NE2-B4

Where

Water Body Cayuga Lake
Latitude and Longitude 42.9175463, -76.7299821
Segment Lakeshore Segment Northeast 2: Harris Park
County Cayuga
Extent Widespread or Lake-wide: The HAB is as far as you can see, and seems to affect the entire waterbody, or most or all of the shoreline.

When

Bloom Reported August 21, 2026 04:00 PM
Bloom Sampled August 21, 2026 04:00 PM
Microscopic Examination August 27, 2026

What

Bloom Genera [1]

Microscopy Present Dominant
Microcystis

Bloom Chemistry

Total Chlorophyll a 402.0 ug/L
Total Microcystin and Nodularins (EPA 546) [2] 360.0 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

Bloom Description

2026 PRIORITY ZONE: Frontenac Park- identified by Cayuga County Health Department as a sample-collection site. Volunteer reported: water was a bit murky, calm with little to no breeze. Temp around 78 degrees, 4:00 was official sample time, but I had been observing the HABs all day yesterday and today.