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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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Research Content

Clean Water Report Card for California

Half of California's Major Industrial Facilities Lack Current Water Pollution Permits
The States' Clean Water Act Permit Backlog -- Up-to-date permits are absolutely essential to the United States' meeting its clean water goals. The reality is that a full 25% of permits nationwide are expired -- meaning these facilities are operating with outdated pollution limits.

Clean Water Report Card: Failing Grades

Up-to-date permits are absolutely essential to the United States' meeting its clean water goals. The reality is that a full 25% of permits nationwide are expired -- meaning these facilities are operating with outdated pollution limits.

Pollution Pays

An Analysis of the Failure to Enforce Clean Water Laws in Three States
An analysis of federal enforcement records shows that large industrial polluters in Ohio, Michigan and Pennsylvania are routinely breaking the law -- and getting away with it.

Polluter Privilege

Into the Mouths of Babes

Bottle-fed Infants at Risk from Atrazine in Tap Water

Ban Methyl Parathion Now

Unacceptable Risk to America's Children
The Environmental Working Group reiterates its demand that the EPA ban the highly toxic bug-killer methyl parathion. More than 300,00 children between the ages of 1 and 5 get an unsafe dose of this poison every day.

Upstream Pollution Taints Ohio Tap Water

What Ohioans Need to Know to Clean Up Their Rivers and Tap Water
Pollutants in rivers and other source waters throughout Ohio are contaminating drinking water statewide, a citizen monitoring project has found.

Same as it Ever Was

The Clinton Administration's 1993 Pesticide Reduction Policy in Perspective
Five years after the Clinton Administration promised to reduce pesticide use and make children's health the top priority in federal pesticide regulation, the government has done little to reduce toxic pesticide use, or residues in food and water.