10 States With the Worst Tap Water in United States in 2025

10. North Carolina – Coal ash, PFAS, and agricultural runoff pollute water.

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9. Michigan – Lead contamination and industrial pollutants, especially in Flint.

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8. Arizona – Groundwater contamination from arsenic and uranium.

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7. Georgia – Industrial pollutants and high lead levels in some regions.

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6. Ohio – Agricultural runoff and toxic algal blooms affect water quality.

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5. New Jersey – High lead levels from aging pipes and PFAS contamination.

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4. Pennsylvania – Fracking and coal mining lead to water pollution.

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3. Florida – Chlorine, lead, and radioactive particles in some areas.

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2. California – Agricultural runoff and industrial waste contaminate water.

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1. Texas – High levels of arsenic, lead, and nitrates due to poor infrastructure.

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