September 23, 2025 | Pet Advisories Issued for Round Pond, Marstons Mills and Crystal Lake, Osterville

Sep 23, 2025 | Beach Water Quality Updates, Cyanobacteria

As of Tuesday, September 23, 2025, the following water quality updates have been issued:

  • A Pet Advisory is issued for Round Pond, Marstons Mills, due to increased levels of cyanobacteria in water quality samples.
  • A Pet Advisory is issued for Crystal Lake, Osterville, due to increased levels of cyanobacteria in water quality samples.
  • The Public Health Advisory posted at Lovells Pond, Cotuit, will removed due to acceptable water quality samples.

Current postings as of Tuesday, September 23, 2025:

Current Public Health Advisories

Parker Pond, Osterville

 

 

 

 

 

 

 

Cyanobacteria Pet AdvisoryCurrent Pet Advisories
Round Pond, Marstons Mills
Crystal Lake, Cotuit
Schoolhouse Pond, Hyannis
Hinckley Pond, Barnstable
Hamblin Pond, Marstons Mills
Aunt Betty’s Pond, Hyannis

 

 

 

 

 

 

If you are interested in receiving more information about Cyanobacteria and locations monitored across Cape Cod, please view the Association to Preserve Cape Cod (APCC) 2025 Cyanobacteria Monitoring Map at https://apcc.org/our-work/science/community-science/cyanobacteria/ 

Thomas A. McKean, RS, CHO
Director of Public Health
TOWN OF BARNSTABLE