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Harmful Algae Update and Beach Closures

With the calm winds and hot temperatures today, we are starting to get additional reports of surface streaking and significant dots in the water both along the shoreline area and in the middle of the lake. Conditions today and through the weekend are ripe for additional concentrations of algae and there is a likelihood of more extensive blooms.

Out of an abundance of caution, Deep Run Beach in the Town of Gorham and West Lake Road School House Beach in the Town of Canandaigua have been closed. The beach operators will continue to work with NYS Department of Health and will conduct follow up testing.

Remember: Use visual cues to identify harmful algae blooms. They can appear like pea soup, spilled paint, globs, and parallel surface streaks and significant dots in the water column. Visit the DEC photo gallery for examples.

If you see anything suspicious, avoid it. Remember that dogs are also susceptible to harmful algae blooms and should not enter the water in suspicious bloom areas.

If you see something that looks like bloom, please send photos and a description to

Kevin Olvany

Watershed Program Manager

Canandaigua Lake Watershed Council

Lindsay McMillan

Association Director

Canandaigua Lake Watershed Association

More Information on Blue Green Algae

Click below for our Harmful Algae Bloom brochure.

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