Much data compilation, evaluation and planning is underway as part of the Upper Columbia River (UCR) Project. The information assembled is provided to the U.S. Environmental Protection Agency (EPA) for review and feedback. The documents undergo a thorough review process by EPA and defined participating parties before being approved by EPA and authorized for public viewing.

The documents in the categories listed in the sidebar, authorized to be made available to the public, include the settlement agreement, RI/FS work plan, reference documents, study-related documents and documents for the risk assessments.