Fact Check: Are PFAS “Forever Chemicals” Found in All U.S. Water Sources?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks.

Claimant: Social Media

Claim: PFAS are present in all U.S. water sources.

Rating: FALSE

Explanation: Gigafact reports PFAS contamination is widespread but not universal. Many water sources show no detectable PFAS, and testing limitations and geographic variation prevent blanket conclusions.

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Date: 12/18/2025

 

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Last Updated on December 18, 2025 by Media Bias Fact Check

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