What is the cleanest river in the USA?

The cleanest river in the United States is the Chattahoochee River. This river starts in the mountains of north Georgia and flows through the Atlanta metropolitan area. The Chattahoochee is one of the few rivers in the country that is still safe to swim in and fish in.



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In a people-powered study of pollutant levels in UK freshwater sites, the River Dart was the only one, out of 48, to pass all five parameters. The river runs 75km from Dartmoor and into the sea at Dartmouth.

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The Mississippi River This once pristine waterway is perhaps the most polluted in the United States. Part of the problem stems from agriculture. The Mississippi River traverses much of America's heartland, drawing no end of runoff from factory farms. Animal waste isn't the only problem.

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For the cleanest water in Europe: The Lobau River, Austria Just east of Vienna, the Lobau River runs through the Donau-Auen National Park.

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–The Smith River is the wildest and cleanest river in the country outside of Alaska — indeed, it is one of the cleanest rivers in the world. — The Smith is the only major undammed river in California.

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Tara River, Europe Also known as the Jewel of Europe, Tara flows through the Balkan nations of Montenegro and Bosnia-Herzegovina. One of the cleanest rivers in the world, it is a UNESCO protected river under the World's Natural Heritage and the World's Biosphere Reserve.

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UK tap water British tap water is said to be one of the best water supplies in the world, with a quality rating of 99.96% according to Discover Water. This quality is regularly monitored by the Drinking Water Inspectorate (DWI) to ensure our water is both clean and safe to drink.

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The River Severn was the most polluted river, and had seen 28,741 hours of sewage pumped into it on 2,656 occasions by Severn Trent Water.

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