What water bodies are tested in Plymouth?
  • Advisories are not lifted until the water has been consistently clear for two weeks.
  • Associations without public access are encouraged to post the Cyanobacteria Advisory Sign (PDF) in visible areas once a bloom is confirmed.
    • It is up to private pond associations to incorporate testing into their management plan, should they wish to do so.
  • Only public bathing beaches are tested for e-coli bacteria per state health regulations, due to the large number of water bodies and expense of testing.
  • Ponds with active blooms are identified and confirmed by visual observation for cyanobacteria by the state.

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1. How do I know if a pond has been identified as having an active cyanobacteria bloom?
2. How do I report a cyanobacteria bloom?
3. What steps does the Town take when a resident reports a bloom?
4. What water bodies are tested in Plymouth?
5. What are the health concerns associated with cyanobacteria?
6. What does cyanobacteria look like?
7. What are the causes of cyanobacteria?
8. Where can I learn more about Cyanobacteria?