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Connecticut · Eastern Connecticut

Thames River
water quality.

Follow the tidal Thames from the Shetucket–Yantic confluence at Norwich to Long Island Sound.

RouteNorwich → New LondonPublic sourceConnecticut DEEP river monitoring

What you can explore

Open the interactive Rivistry dashboard to view available measurements, station context, historical charts, reference lines, and recent weekly highlights for Thames River.

Open Thames River dashboard

Read the context

River measurements can vary with season, rainfall, temperature, flow, sampling location, and method. Rivistry presents them as evidence to understand and investigate—not as a standalone safety determination.

For the original monitoring information, visit Connecticut DEEP river monitoring.

Keep following changes

Weekly River Updates compare new observations with previous readings, recent baselines, trends, and applicable reference values.

See Weekly River Updates →