Columbia River

Toxics Reduction Working Group

Next meeting:
To be announced

Columbia River

About EPA's Work in the Basin

The Columbia River is the fourth largest watershed in the nation, covering parts of 7 states. Learn about the watershed and key projects to help protect it.


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Chemicals of Emerging Concern

The Toxics Reduction Working Group published a strategy for research and monitoring of chemicals of emerging concern in the Columbia River basin:

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