DEC: Toxin Level Below EPA Advisory Level

Late Friday afternoon, we got word from the state Department of Environmental Conservation that they had determined the toxin levels in the water sample that LGA staff took from the Harmful Algal Bloom in Harris Bay on Monday.

The sample confirmed the presence of cyanobacteria and it was determined that the toxin level of the sample was below EPA’s 10-day drinking water health advisory level of 0.30 micrograms per liter for sensitive populations.

The EPA’s Health Advisory levels are used by municipal officials and those in charge of public or community water systems as “informal, technical guidance” in protecting public health when emergency spills or contamination situations occur.

The advisories are developed by EPA to provide information such as the health effects and quantification of toxicological effects of drinking water contaminants that are not subject to any national primary drinking water regulations.

“We thank DEC for their assistance in getting this test performed and for providing these results, and for helping us to keep the Lake community informed,” said Walt Lender, the LGA’s Executive Director.

“We look forward to continuing discussions with the state and with our local stakeholders and partners, and we know we have a lot of work ahead,” Walt said.

For more information on the Harmful Algal Bloom on Lake George, please see our fact sheet and Q&A on our website at

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