State Swimming Water Quality Report
The parks below are the swimming areas and beaches that the DEEP tests. Samples are collected weekly by DEEP staff and are analyzed at the Department of Public Health (DPH) Lab for the presence of certain indicator bacteria.
* Local health departments are responsible for sampling municipal beaches and swimming areas. For information on closures of local swimming areas, contact the local public health agency.
Shoreline Beaches
STATE PARK |
TOWN |
STATUS |
|---|---|---|
| Hammonasset Beach State Park | Madison |
OPEN |
| Rocky Neck State Park (West Beach) | Niantic |
OPEN |
| Sherwood Island State Park | Westport |
OPEN |
| Silver Sands State Park | Milford |
OPEN |
(Date of last bacteria test results: 5/22/2025)
The swim area open/closed statuses listed above are determined by the most recent water quality test results. Tests are conducted weekly from Memorial Day to Labor Day. When a closure occurs, a retest will be scheduled within the next day when possible.
| * | Indicator bacteria are not disease-causing pathogen but are one of the tools used by public health and environmental protection authorities to evaluate the potential for contamination of waterbodies. |
| ** | Coastal sampling and laboratory analysis partially funded by the Environmental Health Section of DPH. |
Lakes & Ponds
STATE PARK |
TOWN |
STATUS |
|---|---|---|
| Black Rock State Park | Watertown |
OPEN |
| Burr Pond State Park | Torrington |
OPEN |
| Chatfield Hollow State Park | Killingworth |
OPEN |
| Cockaponsett State Forest (Pattaconk) | Chester |
OPEN |
| Day Pond State Park | Colchester |
OPEN |
| Gardner Lake State Park | Salem |
OPEN |
| Gay City State Park | Hebron |
OPEN |
| Hopeville Pond State Park | Griswold |
OPEN |
| Indian Well State Park | Shelton |
OPEN |
| Lake Waramaug State Park | Kent |
OPEN |
| Mount Tom State Park | Litchfield |
OPEN |
| Pachaug State Forest (Green Falls Pond) | Voluntown |
OPEN |
| Quaddick State Park | Thompson |
OPEN |
| Squantz Pond State Park | New Fairfield |
OPEN |
| Stratton Brook State Park | Simsbury |
OPEN |
| Wadsworth Falls State Park | Middlefield |
OPEN |
| Wharton Brook State Park | Wallingford |
OPEN |
(Date of last bacteria test results: 5/22/2025)
The swim area open/closed statuses listed above are determined by the most recent water quality test results. Tests are conducted weekly from Memorial Day to Labor Day. When a closure occurs, a retest will be scheduled within the next day when possible.
| * | Indicator bacteria are not disease-causing pathogen but are one of the tools used by public health and environmental protection authorities to evaluate the potential for contamination of waterbodies. |
