Columbia River

Toxics Reduction Working Group

Next meeting to be announced

Learn more about the Toxics Reduction Working Group

Columbia River

Chemicals of Emerging Concern

Cover image for Columbia River Chemicals of Concern Report

The Toxics Reduction Working Group published its strategy for research and monitoring of chemicals of emerging concern in the Columbia River Basin.

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Watershed flyover

Columbia River Basin flyover
Watch this flyover graphic showing the size and scope of the Columbia River basin, which covers parts of 7 states. It is the fourth largest watershed in the nation.