Advisory

Advisory  DCR Recreational Advisory: Cyanobacteria Bloom in Middle Pond at Lake Cochituate  

Date: 05/28/2026

What: The Department of Conservation and Recreation (DCR) is warning the public of a cyanobacteria bloom present in the Middle Pond section of Lake Cochituate in the Town of Natick. During a bloom, it is strongly advised that the public should not have contact with the water. Additionally, pet owners should keep their animals away from the shoreline to prevent them from ingesting the water. This area will be retested once conditions visibly improve to determine whether cyanobacteria levels have fallen within acceptable limits per Department of Public Health (DPH) guidelines. For questions regarding cyanobacteria blooms, please contact DPH at (617) 624-5757 or visit the agency’s algae webpage

Where: Middle Pond section of Lake Cochituate in the Town of Natick 

        

When: effective immediately – until further notice

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