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 […]
Cyanobacteria Alert – June 13 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Cliff Pond, Nickerson State Park, Brewster Visual evidence provided by the Department of Conservation & Recreation (DCR) indicates the presence of cyanobacteria (blue-green algae) cells in Cliff Pond at levels that may exceed MDPH guidelines. Accordingly, MDPH is recommending that […]
Cyanobacteria Alert – June 12 2026

Above: Wakeby, Mashpee/Sandwich, June 12, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Wakeby, Mashpee/Sandwich 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. […]
Cyanobacteria Alert – June 11 2026

Above: Uncle Harvey’s Pond, Orleans on June 10, 2026 “When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been detected in: Sam Pond, Barnstable Sheep Pond, Brewster Uncle Harvey’s Pond, Orleans The town has been notified of the findings. If you have any questions, contact the local health department. You can view […]
Cyanobacteria Alert – June 4 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been identified at the following pond(s): Mares Pond, Falmouth Snake Pond, Sandwich Queen Sewell Pond, Bourne 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 […]
Cyanobacteria Alert – June 2 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been observed at Bearse Pond, Barnstable Hinckley 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, […]
Cyanobacteria Alert – May 22 2026

“When in Doubt, Please Stay Out.” A potentially toxic cyanobacteria bloom has been observed at Hamblin Pond, Barnstable Mystic Lake, Barnstable The town has posted a pet advisory. If you have any questions, contact the local health department. Avoid contact, particularly incidental ingestion of pond water that can occur during swimming. Dogs […]
Cyanobacteria Alert – July 8 2025

“When in Doubt, Please Stay Out.” Recent News from APCC’s Cyanobacteria Monitoring Program Please be advised that potentially toxic blooms have been identified on the following ponds: Hamblin Pond, BarnstableNeck Pond, BarnstableParker Pond, Barnstable Town officials have been notified. If you have any questions, contact the local health department. Avoid contact, particularly incidental ingestion of […]
Cyanobacteria Alert – July 1 2025

“When in Doubt, Please Stay Out.” Recent News from APCC’s Cyanobacteria Monitoring Program Please be advised that potentially toxic blooms have been identified on the following ponds: Long Pond Marstons Mills, BarnstableLong Pond Centerville, BarnstableCrystal Lake, BarnstableSantuit Pond, Mashpee Town officials have been notified. If you have any questions, contact the local health department. Avoid […]


