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State Issues Cyanobacteria Advisory for Keyser Pond in Henniker, New Hampshire
July 11, 2019
CONCORD, New Hampshire, July 11 -- The New Hampshire Department of Environmental Services issued the following news release:

Elevated concentrations of cyanobacteria are present in Keyser Pond in Henniker, NH. Samples collected on 7/10/2019 from the deep site of the lake exceeded the State threshold of 70,000 cells/ml of cyanobacteria. Samples contained Anabaena/Dolichospermum with a total cell count of 145,000 cells/ml. There is also a deep layer bloom (at 5 m) of Oscillatoria/Plan . . .

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