Cyanobacteria Alert – July 21 2026

Above: Lovells Pond, Barnstable on July 20, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: • Hamblin Pond, Barnstable • Long Pond (Marstons Mills), Barnstable • Shubael Pond, Barnstable • Lovells Pond, Barnstable The town has been notified of the findings. If you have any questions, contact […]
Cyanobacteria Alert – July 16 2026

Above: Ashumet Pond, Falmouth, July 15, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Ashumet Pond, Falmouth/Mashpee The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our […]
Cyanobacteria Alert – July 9 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Boland Pond, Orleans The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our interactive map. Avoid contact, particularly incidental ingestion […]
Cyanobacteria Alert – July 8 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Long Pond, Yarmouth The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our interactive map. Avoid contact, particularly incidental ingestion […]
Cyanobacteria Alert – July 1 2026

Photos: Long Pond, Brewster, June 30, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Long Pond, Brewster The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our […]
Cyanobacteria Alert – June 30 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Long Pond Marstons Mills, Barnstable The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our interactive map. Avoid contact, particularly […]
Cyanobacteria Alert – June 26 2026

Above: Upper Mill Pond, Brewster, June 25, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Upper Mill Pond, Brewster The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results […]
Cyanobacteria Alert – June 25 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Bakers Pond, Orleans Crystal Lake, Orleans The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our interactive map. Avoid contact, […]
Cyanobacteria Alert – June 24 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: White Pond, Chatham Stillwater Pond, Chatham The town has been notified of the findings. If you have any questions, contact the local health department. You can view the most recent sampling date and results on our interactive map. Avoid contact, […]
Cyanobacteria Alert – June 23 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Mashpee Pond, Mashpee The town notified APCC that they posted a Potential for Concern for this pond because of a visual scum. If you have any questions, contact the Mashpee health department. You can view the most recent sampling date […]


