Coeur d'Alene Basin | Region 10 | US EPA

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Coeur d'Alene Basin


Site Summary: The Bunker Hill Mining and Metallurgical Site became a Superfund site in 1983. The site covers parts of northern Idaho and eastern Washington. It is divided into three areas: the 21-square-mile “Box” populated area, the Box non-populated area, and the Coeur d’Alene Basin. Read more...

Partners: EPA is working closely with the Idaho Department of Environmental Quality, the Basin Environmental Improvement Project Commission, the Coeur d’Alene Tribe, other federal, state, and local agencies, and local community members on this complex cleanup.

Cleanup Areas

Mine and Mill Cleanups Repositories Current Projects Information about the Proposed Cleanup Plan

Asarco Settlement Information Institutional Controls Program
The Panhandle Health District manages the Institutional Controls Program, a locally-enforced set of rules and regulations designed to ensure the integrity of clean soil and other protective barriers placed over contaminants left throughout the Bunker Hill Superfund site.

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Site Information



The Box
The Bunker Hill Mining and Metallurgical Superfund site is one of the largest and most complex abandoned hazardous waste sites in the nation. The Bunker Hill site currently includes three operable units. Operable Units 1 and 2 are located in the portion of the site known as the Bunker Hill “Box." The Box area includes a former smelting facility that lies along I-90 in Northern Idaho’s Silver Valley. It encompasses the towns of Pinehurst, Smelterville, Wardner, and Kellogg, and the communities of Page, Ross Ranch, Elizabeth Park, and Montgomery Gulch. This part of the Superfund site covers approximately 21 square miles and affects about 5,000 people. ...more overview...

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