Harmful Algal Bloom Report

Bloom Code 26-SW10-B1

Where

Water Body Cayuga Lake
Latitude and Longitude 42.66625707, -76.69981165
Segment Lakeshore Segment Southwest 10: Lively Run to Sheldrake Point
County Seneca
Extent Large Localized: The HAB is in a small area, but affects many properties, along a large segment of the shoreline, or in a specific region of the waterbody.

When

Bloom Reported August 21, 2026 01:54 PM
Bloom Sampled August 21, 2026 03:08 PM
Microscopic Examination August 27, 2026

What

Bloom Genera [1]

Microscopy Present Dominant
Dolichospermum
Microcystis

Bloom Chemistry

Total Microcystin and Nodularins (EPA 546) [2] 280.0 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: Sheldrake Point- identified by Seneca County Health Department as a sample-collection site. Community member reported: Murky water that is normally clear. At the shore and then out to about 60 ft and then goes the whole cove area. Volunteer reported and collected a sample the same day.