US Army Corps of Engineers
Northwestern Division Website

Columbia Riverkeeper Settlement Agreement

Per the settlement agreement in Columbia Riverkeeper v. USACE, No. 2:13-md-02494-LRS (E.D. Wash), pertaining to the Bonneville, The Dalles, John Day, McNary, Ice Harbor, Lower Monumental, Little Goose, and Lower Granite dams on the Columbia and Snake Rivers, the U.S. Army Corps of Engineers is making available reports of monitoring and assessments that have occurred pursuant to an Oil Accountability Plan for each project.


The eight dams have operational similarities and common internal processes and equipment. The management, equipment, project layout, staffing and size, however, vary among the projects.

Each project is subject to Northwestern Division policy on oil and grease accountability to ensure that oil and grease at operating projects are properly accounted for to reduce the potential for releases of pollutants into waters of the United States.

Each project uses the Facility Equipment Maintenance (FEM) tracking system to document all equipment inspections and repairs. Inspections are performed on a routine schedule established by the individual dam. When Inspections reveal operation or maintenance issues not associated with normal operations, the project performs Assessments through which the project evaluates, repairs, or otherwise addresses such issues. The reports below contain summaries of Inspections and Assessments for each of the eight dams.

Report Contents

These Oil Accountability Reports are provided for informational purposes only, and are not final agency actions within the meaning of the Administrative Procedure Act or any other applicable provision of law. Oil Accountability Reports are not intended to, and do not, create any right or benefit, substantive or procedural, enforceable at law or in equity by any party against the United States, its departments, agencies, or entities, its officers, employees, or agents, or any other person.

Below are links to the reports for each of the aforementioned dams. Previous reports are available at the same link.

Oil Accountability Reports

Bonneville Dam OARJan. 1 - Dec. 31, 2019
Ice Harbor Dam OARJan. 1 - Dec. 31, 2019
John Day Dam OARJan. 1 - Dec. 31, 2019
Little Goose Dam OARJan. 1 - Dec. 31, 2019
Lower Granite Dam OARJan. 1 - Dec. 31, 2019
Lower Monumental Dam OARJan. 1 - Dec. 31, 2019
McNary Dam OARJan. 1 - Dec. 31, 2019
The Dalles Dam OARJan. 1 - Dec. 31, 2019