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At EWG,
our team of scientists, engineers, policy experts, lawyers and computer programmers pores over government data, legal documents, scientific studies and our own laboratory tests to expose threats to your health and the environment, and to find solutions. Our research brings to light unsettling facts that you have a right to know.

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Our Water

Expert Testimony and Communications Content

Pharmaceuticals Pollute U.S. Tap Water

The Associated Press found drugs and other medical compounds in the drinking water supplies of 41 million Americans. EWG's Tap Water Database details other contaminants.

History of Perchlorate Health Effects Research

Perchlorate Timeline: 50 Years of Deception and Delay

Statement of Dusty Horwitt, JD

Senior Analyst for Public Lands, Environmental Working Group

FDA should adopt EPA tap water health goals as enforceable limits for bottled water

Comments submitted by Olga Naidenko, Ph.D., Senior Scientist Environmental Working Group

EPA Needs to Set Enforceable Standards for Currently Unregulated Drinking Water Pollutants

Statement of Olga Naidenko, Ph.D., Senior Scientist
Environmental Working Group