91 Tap Water Contaminants Linked to Cancer

91 Tap Water Contaminants Linked to Cancer

Friend, when EWG analyzed 32 million water records from across the country, we were shocked at the results. Out of almost 50,000 utilities studied, 45,000 detected contaminants linked to cancer. And 10,000 community water systems detected higher lead concentrations than what the American Academy of Pediatrics called safe for children.

That’s the bad news, but the good news is we’ve created a one-of-a-kind database so you can find out exactly what’s in your tap water and which filters you can use to protect yourself and your family. Our results are already making headlines, but you can take an in-depth look for yourself right now. Take the first step toward safer drinking water by visiting EWG’s Tap Water Database and typing in your ZIP code.

Highly toxic fluorinated chemicals called PFAS build up in our bodies and never break down in the environment. Very small doses of PFAS have been linked to cancer, reproductive and immune system harm, and other diseases. EWG found that up to 110 million people may be drinking PFAS-tainted water.

Shocking EWG analysis found that a complex toxic cocktail of chemical pollutants in drinking water could result in more than 100,000 cancer cases. The study assessed 22 carcinogenic contaminants found in more than 48,000 community water systems across the country.  Click here to learn more about carcinogenic contaminants in tap water.

Once you’ve identified the contaminants of concern in your drinking water, make sure you check out EWG’s Water Filter Guide to find a filter that works for you and is certified to remove the contaminants in your tap water.

Is the water from your tap safe to drink? Ask your water company and they’ll probably tell you it meets all government safety standards. They probably won’t tell you it could contain a dose of chemicals linked to cancer, brain damage, nervous system damage, fertility problems or hormone disruption.

That’s because those government standards don’t give you the whole story. So EWG created our own.  Watch our video to learn more.

We designed a new tap-water-themed Klean Kanteen in honor of the new Tap Water Database!  If you donate $45 or more to support EWG’s tap water work, we’ll send you one as a thank-you. Hurry – supplies are limited!

We wanted to alert you to two fantastic books about America’s drinking water that are on sale now. Check them out on Amazon now! & Troubled Water – What’s Wrong with What We Drink.


EWG’s mission is to empower people to live healthier lives in a healthier environment. EWG is a non-profit and non-partisan organization. The EWG Action Fund, a separate sister organization of EWG, is a legislative advocacy organization that promotes healthy and sustainable policies.