Blue Green Algae Update

September 5, 2018

We are seeing the "perfect storm" of conditions today for blue green algae. We have received many reports from shoreline property owners that they are seeing "pea soup" like conditions and streaking of algae. Today's hot, calm weather is bringing the algae to the surface and it is likely that we will continue to see these conditions throughout the day.

It is very important to remember to use your visual indicators while using the lake. Please stay out of the water in areas where there are bloom like conditions. We know based on past sampling efforts that some blooms have been toxic, so it is best to avoid these areas altogether. Please remember that pets are especially vulnerable to Blue Green Algae since they drink a lot of water when in the lake and the algae can concentrate on their fur and they can ingest large quantities when they groom themselves.

For more information on the effects of HABs, please review the below links.

To report suspicious blooms, please send photos along with location and description of the conditions you are seeing to:


Volunteers have been out all morning collecting samples and we will share the results as they become available. 

Additional Resources: 
Canandaigua Lake Harmful Algae Bloom Brochure  
Dogs and Harmful Algae Blooms Fact sheet 
New York State Department of Health website 
New York State Department of Environmental Conservation website
For questions contact:
Kevin Olvany
Canandaigua Lake Watershed Council Program Manager
(585) 747-8719
Lindsay McMillan
Association Director, CLWA
(585) 394-5030

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More Information on Blue Green Algae

Click below for our Harmful Algae Bloom brochure.

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205 Saltonstall Street Canandaigua, NY 14424 • 585.396.3630