View Current Water Quality & Beach Status Report for Town of Barnstable HERE
Update 10/27/20
Pet Advisories have been lifted for Lovell’s Pond, Cotuit & Parker Pond, Osterville.
Shubael Pond, Marstons Mills has been downgraded to a Pet Advisory.
The North East shore of Mystic Lake, Marstons Mills still has a small amount of cyanobacteria scum which should be avoided by dogs.
Hinckley Pond, Barnstable remains at Pet Advisory level.
Update 10/21/20
North East Mystic Lake is having a low level bloom – shore line scum should be avoided by pets and curious children.
Lovell’s Pond, Cotuit has been downgraded to a Pet Advisory.
Cyanobacteria information:
Warning Level
Shubael, Marstons Mills
Pet Advisory Level
Hinckley Pond, Barnstable
Lovell’s Pond, Cotuit
Mystic Lake, North East Shore, Marstons Mills
Parker Pond, Osterville

10/6/20
Cyanobacteria information:
Warning Level
Lovell’s Pond, Cotuit
Mystic Lake, Marstons Mills
CLOSED* No Swimming
Shubael Pond, Marstons Mills
9/9/20
The Pet Advisory has been lifted at Long Pond Marstons Mills.
Lovell’s pond has been downgraded from a Closure to a Pet Advisory
Pet Advisory Level
Lovell’s Pond, Cotuit
Shubael Pond, Marstons Mills
Cyanobacteria information:
Warning Level
Hinckley Pond, Barnstable
Parker Pond, Osterville
8/26/20
Cyanobacteria information:
CLOSED* No Swimming
Lovells Pond Beach, Cotuit
- Moderate health risks for adults
- Higher risk for babies and small children
- Highest risks for pets
Update: 7/29/20
No Bottom, Cotuit Cyanobacteria Warning has been lifted.
Update: 7/28/20
CLOSED* No Swimming
Lovells Pond Beach remains closed due to Cyanobacteria
Update: 7/20/20 Keyes Beach is opened for swimming!
Holly Point Beach Association/Bearse pond’s Pet Advisory has been lifted.
Cyanobacteria information:
CLOSED* No Swimming
Long Pond Marstons Mills (Posted at Long Pond Farms Beach)
Lovells Pond Beach, Cotuit
- Higher risk for babies and small children
- Moderate health risks for adults
- Highest risks for pets
*minimum 2 week period of monitoring, before lifting closure
Update: 6/25/20
Keyes Beach, Hyannis continues to be closed due to bacteria levels above State standards.
The beach has been resampled.
Cyanobacteria Monitoring results:
Pet Advisory
Holly Point Beach Association/Bearse Pond
Shubael Pond
Warning

No Bottom Pond *, Cotuit is experiencing a cyanobacteria bloom- and the visibility is <4 ft. therefore swimming is not recommended for abutters and dogs should be kept out of the water. * There is no public access to this pond.
The Town of Barnstable shares data with Association to Preserve Cape Cod (APCC), which is updated for Barnstable on Thursday afternoons.
To check if your pond has been sampled and its current status please check the APCC Cyanomap HERE
Also, please remember the CDC guidance: “When in doubt it is best to stay out!” View CDC Site HERE
Cyanobacteria FAQ HERE
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