Drinking water quality, reports, and safety by U.S. state.
There is no federal ranking of water hardness by state. USGS mapping puts the hardest water in the Southwest, Great Plains and east-central limestone belt - here is what that means for your tap.
The American cities with the worst documented water quality in recent years are Jackson, Mississippi, whose system failed so completely in 2022 that a federal court placed it under outside management; Flint, Michigan, site of the most studied lead crisis…
No U.S. government agency publishes an official “cleanest tap water” ranking, but a handful of cities are consistently recognized for exceptional water quality: New York City, Boston, San Francisco, and Seattle — all supplied by highly protected watersheds so pristine…
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There is no single official ranking of which U.S. state has the “best” water quality, because the EPA does not score states against one another. That said, states that consistently report the fewest Safe Drinking Water Act violations and draw…
