NHDES Cyanobacteria Alert Lake Winnisquam - 1 more week

When: June 12, 2024
Where: Lake Winnisquam, South end near Route 3
Status: Alert

NH DES continued the cyanobacteria alert for an additional week on Lake Winnisquam on June 12th. The original bloom was reported at the Sanbornton Town Beach June 7. Additional bloom conditions were reported for the south portion of the lake near Route 3 the evening of 6/11. The most dense accumulations had passed by the morning of 6/12 when three samples were collected from the area. The bloom appears to be coming and going in intensity on several shorelines. Please carefully perform your visual risk assessments before recreating, and report any surface scums you observe through the bloom report form. For more information:
NHDES Healthy swimming mapper
Frequently asked questions (including an alert vs. a warning)
Sign up for DES alerts for Lake Winnisquam