Latest samples: reflect the most recent water test results.
Likely condition: based on recent weather and historical trends.
clean for swimming
clean for boating
not clean for either
less than a month
1-12 months
more than 12 months
United States Geological Survey (USGS)
We provide timely and reliable information to Federal, State, Tribal, and local stakeholders on the water resources of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Our data help safeguard human and wildlife health, public safety, and environmental sustainability.
339 Main St, East Hartford, CT 06118
