This document is intended to guide collaboration and implementation of toxics monitoring and reduction efforts across the Columbia River Basin. It is primarily intended as a reference for members of the Columbia River Basin Restoration Working Group and other entities working to assess, reduce, and/or clean up toxics in the watershed.

For questions, contact Ashley Zanolli (zanolli.ashley@epa.gov), 503-326-6831.

The framework is available below in multiple formats.

Columbia River Basin Contaminants of Concern Framework (Microsoft Word)(13 pp, 70 K, August 3, 2020)

Columbia River Basin Contaminants of Concern Framework (Microsoft Excel)(61 K, August 3, 2020)

• Columbia River Basin Contaminants of Concern Framework (PDF)(13 pp, 594 K, August 3, 2020)