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 […]
Cyanobacteria Alert – June 23 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Shubael Pond, BarnstableLovells Pond, 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 18 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Coonamessett Pond, Falmouth The towns have 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 – June 16 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Gooseberry Pond, Barnstable Wequaquet Lake, Barnstable The towns have 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 15 2026

“When in Doubt, Please Stay Out.” We are passing along this notification (above) from the Massachusetts Department of Public Health (MDPH) regarding Flax Pond, Nickerson State Park, Brewster You will find the most recent sampling date and results for ponds being monitored under APCC’s cyanobacteria monitoring program on our interactive map. While we do not […]


