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The New Hampshire Department of Environmental Services has issued a Cyanobacteria Bloom Advisory for Long Pond. This advisory is not based on a toxin evaluation and is intended as a precautionary measure for short term exposure.

The bloom was first observed on August 22, 2022, appearing as green clouds and streaks in the water. Please continue to monitor your individual shorelines for changing conditions. The New Hampshire Department of Environmental Services advises lake users to avoid contact with the water in areas experiencing elevated cyanobacteria cell conditions, and also advises pet owners to keep their pets out of any waters also experiencing these conditions.

The advisory went into effect on August 23, 2022 and will remain in effect until the New Hampshire Department of Environmental Services confirms that the cell concentrations of the bloom have subsided. More information regarding the bloom, including contact information for the New Hampshire Department of Environmental Services to report cyanobacteria cell conditions in your area, can be viewed here.