Arsenic in your and your pets drinking water.

Help EWG Protect Your Health: Donate Now to Help Us Raise $25,000 by Midnight and Get Your Copy of EWG's Guide to Safe Drinking Water | Donate Now!


81 percent. That’s how many water systems in the United States contain contaminants linked to cancer – chemicals including chromium-6 (the “Erin Brockovich” chemical), arsenic and dozens of others.

These contaminants are perfectly legal in water, but are not necessarily safe. That’s right – the government thinks it’s OK for harmful chemicals to be in your water – even at levels deemed unsafe by scientists. EWG believes you shouldn’t be drinking chemicals that could make you sick, and that you have a RIGHT to know what’s in your water and how to filter it out.

That’s why EWG spent two years aggregating and analyzing data from almost 50,000 public water systems across the U.S.

It wasn’t easy, but it is important. Without EWG’s Tap Water Database, Jean, it would be nearly impossible for you to find out what’s really in the water you drink every day.

We’ve set a goal of raising $25,000 by midnight to maintain EWG’s Tap Water Database and expand our research on the toxic contaminants that make it into your water. And it doesn’t take much – all we need is a gift of $10 from you today.

Click here to make a tax-deductible donation of $10 or more to help EWG expand its research and continue fighting for your health. If you give before midnight, we’ll instantly send you an electronic copy of EWG’s Guide to Safe Drinking Water so that you can have our top tips with you wherever you go.

Here are just some of the key findings from EWG’s new Tap Water Database:

  • Chromium-6, made notorious by the film “Erin Brockovich,” was detected in the drinking water supplies serving 250 million Americans in all 50 states.
  • 1,4-Dioxane, an unregulated compound that contaminates tap water supplies for 8.5 million people in 27 states at levels above those the Environmental Protection Agency considers to pose a minimal cancer risk.
  • Arsenic was found in the drinking water supplies of 70 million people. This poison is a naturally occurring mineral that causes bladder, lung and skin cancers.

Just like EWG’s Skin Deep®, Food Scores and Guide to Cleaners, EWG’s Tap Water Database is one of a kind. No one else is working this hard to inform you and protect you from potentially dangerous chemicals you may encounter daily – not the government, not the private sector. Just EWG.

So if you want EWG to be able to continue updating its Skin Deep Cosmetics Database, the Tap Water Database, and countless other resources that you and so many others rely on, we need you to act right now.

Please, click here to donate $10 or more to help EWG raise $25,000 toward this critical work. To thank you, we’ll instantly email you a copy of EWG’s Guide to Safe Drinking Water, with tips on how to stay safe and hydrated.

With your support today, EWG will continue to be on the front lines, arming people with the information they need to protect themselves and their families from water contamination, and advocating for better safeguards for water quality and human health.

Thank you.

Nneka Leiba
Director of Healthy Living Science, EWG


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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.

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