Is US Tap Water Safe to Drink?
What the data really says about American tap water, and how to know about yours.
Jun 2, 2026HOME / WATER SAFETY & CONTAMINANTS
Section Water Safety & Contaminants
What can be in your drinking water, the health risks, and what to do about it.
All guides
Lead in Drinking Water: Risks and What to Do
Where lead comes from, why there is no safe level, and how to protect your home.
May 20, 2026PFAS ‘Forever Chemicals’ in Drinking Water
What PFAS are, the new EPA limits, and how to reduce them at home.
May 12, 2026Arsenic in Drinking Water
A natural contaminant with real health risks, especially in private wells.
Apr 28, 2026Nitrate in Drinking Water
An agricultural contaminant that is a serious risk for infants and wells.
Apr 15, 2026Chlorine and Disinfection Byproducts
Why we disinfect water, and the trade-off of byproducts like THMs.
Mar 30, 2026Copper in Drinking Water
How copper gets into tap water from your own plumbing, and the limits.
Mar 12, 2026Microplastics in Drinking Water
What we know, what is still uncertain, and what filtration helps.
Feb 24, 2026Bacteria and Waterborne Pathogens
E. coli, Legionella, and the bugs that boil-water notices target.
Feb 10, 2026