CHESTER – As the Tri-Town Times goes to press, a warning remains regarding swimming or recreating in Showell Pond.
The New Hampshire Department of Environmental Services (DES) issued a cyanobacteria warning for the pond on Aug. 12 as blue-green algae blooms were witnessed over large swaths of the water and water testing indicated the presence of cyanobacteria.
Since then the water has been tested again, on Aug. 21, and was still found to be unsafe. The next sample date is set for Aug. 26, after the Tri-Town Times goes to press.
According to the initial warning, “The whole pond has shown greenish-blue water, although during windy conditions, the cyanobacteria may congregate in small sections of the pond.”
Lake users are advised to avoid contact with the water in areas experiencing a surface scum or blue-green clouds. Toxins stored within the cells of the bacteria can cause both acute and chronic health affects for people and animals.
Acute effects include irritation of skin and mucous membranes, nausea, vomiting and diarrhea. Chronic effects include liver and central nervous system damage.
Showell Pond is a member of the Volunteer Lake Monitoring Program and is generally sampled once a month from June through August by volunteers.
For more information on DES beach and water advisories, visit www2. des.state.nh.us/advisories/beaches/.