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Water AwarenessInitiative
An editorially independent initiative · est. 2026

What's actually
in your tap water?

Clear, science-backed reports on the drinking water in every U.S. ZIP code — sourced from EWG, written in plain English, brutally honest about what we know and what we don't.

Free. No signup. Data from EWG's Tap Water Database, refreshed monthly.

Live EWG contaminant data·Citations on every claim·Reviewed by environmental health experts
330MAmericans covered
The honest version

Your tap water is regulated.
That is not the same as safe.

The Safe Drinking Water Act covers roughly 90 contaminants. Your utility tests for them on a schedule. If they pass, the water is “in compliance.” Most American water passes most tests, most of the time. That is not the whole story.

The honest numbers

The data that should be a national conversation.

9.2M
Lead service lines still in U.S. homes
EWG Tap Water Database
45%
Of U.S. tap water samples with PFAS detected
USGS, 2023
617×
The worst single contaminant flag we've seen vs. EWG's health-protective level
EWG · NYC, HAA9
0
Demonstrated safe blood-lead level in children
CDC, AAP, WHO

A utility can be in legal compliance and still post contaminant levels hundreds of times above what independent scientists consider health-protective.

The initiative, on what your water report shows
Who it's for

Water doesn't affect everyone the same way.

An eight-pound newborn, a sixty-pound dog, and a sixty-year-old with a coffee habit are answering different questions. Each guide below is written for the specific biology, behavior, and stakes of that life stage.

The Contaminants

The chemicals worth understanding.

See all contaminants
Pb
Featured · metal

Lead

A neurotoxic metal that leaches from old pipes and solder. No safe level for children.

Affected
9.2M U.S. homes
“Your utility being in compliance with the Safe Drinking Water Act is the start of the public-safety conversation, not the end.”
From our Flint, Michigan retrospective
Read the piece
Did You Know?

There are still an estimated 9.2 million lead service lines connecting homes to water mains in the United States.

Source: EPA Lead Service Line InventoryMore facts
Browse all water facts →
Browse by state

Every state has its own water story.

Fifty profiles, each with the source-water mix, the contaminants state regulators flag most, the flagship regional story, and the recent news.

Browse all 50 states
Personalized · downloadable

Your Water File — built for your household.

Five questions about your home and who lives there. We'll cross-reference your ZIP's contaminant data with what actually matters for your household — and produce a downloadable file you can keep, print, or send to your landlord.

Takes ~30 seconds · free · no signup · nothing stored

Inside your file
  • Contaminants ranked for your household
  • Concrete next steps for your home age and family
  • Filter certifications that actually work
  • Print or save as PDF, branded
Close-up of water droplets falling into a clear glass
From the Library
“Lead in drinking water: what the science actually says.”
The Library

The most thorough, honest water library on the internet.

Pillar articles on contaminants, health effects, filtration, and policy — written to be the last thing you have to read on each topic. Every claim cites a primary source.

The Sunday Email

One email per week.
No spam, ever.

A calm, sourced summary of what changed in U.S. drinking water that week — new regulations, new contaminants under review, regional alerts. Unsubscribe in one click.

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