Where is the cleanest water in the US?

The ten states with the cleanest tap water in the US are Hawaii, the District of Columbia, Nebraska, Delaware, Kentucky, South Carolina, North Dakota, Rhode Island, South Dakota, and Nevada. Hawaii has the best tap water in the US, reporting only 2 water violations.



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The United States boasts a diverse range of tap water quality across its states. According to data on water violations, some states stand out for their exceptional tap water. Hawaii has the best tap water with only two water quality violations.

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A boil water advisory is issued when harmful germs (e.g., E. coli bacteria, Giardia parasite) may be in a drinking water supply. Drinking water contaminated with these germs can make people and animals very sick. Boiling will kill the germs and make the water safe to drink.

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New York City's tap water comes from three main sources outside of the city: the Delaware, Catskill, and Croton watersheds. These watersheds have limited limestone and a natural pH balance of 7.2—as close as it gets to a pure water pH balance of 7.

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Blue Lake, New Zealand A 2011 study by the Auckland-based National Institute of Water and Atmospheric Research found some of the clearest waters on record in the small Blue Lake, part of Nelson Lakes National Park in New Zealand's Southern Alps, accessible from the village of Saint Arnaud.

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While there are a few places that boast extremely clean water, such as Canada, Iceland, Antarctica, or even Upstate New York, the team of scientists determined that the cleanest water in the world was in the Patagonia region of Chile, Puerto Williams.

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Lake Tahoe, California/Nevada The crystal-clear waters of Lake Tahoe reach a maximum depth of 1,645 feet at a height of 6,225 feet above sea level. The water of this long-existent lake is the cleanest in North America, making it one of the cleanest lakes in the United States.

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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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San Antonio — Very Hard to Extremely Hard Water Renowned for The Alamo and its beautiful River Walk, San Antonio also has a reputation for some of the hardest water in the country. San Antonio is also where Jason's Water Systems headquarters is located.

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