ALERT!! Lake Warren Cyanobacteria Advisory

Good morning,

Please be advised that NH Dept. of Environmental Services has issued an official advisory for Lake Warren based on results of a water sample submitted this past week. The advisory states that the water is not suitable for wading or swimming due to a high concentration of cyanobacteria. Keep pets out of the water.

Please see links for more information. Cyanobacteria blooms have been observed in different areas of the lake on and off for the past 6 weeks or so but this is the first official advisory issued by NHDES. Please be cautious and check the water for signs of algae blooms before entering the lake at any time of year. Blooms are unpredictable and can appear at any time.

Thank you and be safe,

Lake Warren Association

Cyanobacteria Lake Warren
Current Cyanobacteria Advisories

Cyanobacteria History

General CyanoHAB Information