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This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

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Silver Bow Creek - Butte Area Site

  • EPA is committed to protecting the health and safety of the people in Montana

    EPA works with state, local, and other federal officials to implement cleanups across the Butte Superfund Complex.

Cleanup and Progress In and Around Butte, MT...

Since 1983, EPA, in consultation with DEQ, has conducted cleanup actions across Butte and Silver Bow Creek to address decades of contamination resulting from historic mining activities. Cleanup work is ongoing.

Announcements

Proposed Plan for Lead Cleanup

Changes are Proposed for Lead Cleanup in Residential Soils in Butte.

Learn about the Proposed Plan

Remedial Design / Remedial Action Progress Meeting 

January 21, 2025, from 9:00 am to 11:00 am, the meeting will be a chance to observe the Butte Priority Soils Operable Unit RDRA Progress Meeting. There will be no method for asking questions or making statements.

View Calendar


Stay Connected

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two humans standing in the Butte Mining flood operable unit with a large pipe in the background.

Background

Learn about the site background and what has been done to clean up the site.

Workers installing autosamplers in butte stormwater system

Current Site Status

Learn about the current site status at the 7 Operable Units, and about the updated soil lead guidance.

Aerial image of site from 1954

Documents

Review publicly available site documents.

Land cleared in butte

Calendar

Find information on upcoming meetings or office hours to speak with EPA staff.

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    Workings in the water at the site
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    Large machinery on the site

    Learn about the site on a variety of topics. 

    Get Answers
Contact Us About the Butte Area-Silver Bow Creek Site to ask a question, provide feedback, or report a problem.
Last updated on January 6, 2025
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