Silver Bow Creek - Butte Area Site

EPA is conducting the sixth Five-Year Review (FYR) of the cleanup progress. Every five years, EPA evaluates the implementation and performance of cleanups to determine if they are, and will, remain protective of human health and the environment. We want to hear from you! Community members are encouraged to share information that may be helpful. 

Review Public Notice

EPA released an updated lead directive in October 2025. This Directive updates the blood lead level of concern and the soil screening level for lead cleanup at Superfund sites. EPA is evaluating the Directive’s impacts on this site. The site team will continue to collect and use site specific information and community input to make decisions. EPA aims to accelerate cleanups, delivering health and environmental protections to communities faster. More details will be shared with the community as they become available. 

Remedial Design / Remedial Action Progress Meeting 

On November 18, 2025, from 9:00 am to 11:00 am, Atlantic Richfield, EPA, Butte Silver Bow County, Montana DEQ, and the Montana Natural Resource Damage Program invite the public to observe the Butte Priority Soils Operable Unit (BPSOU) Remedial Design/Remedial Action Progress Meeting (RDRA Progress Meeting) in a Zoom event by computer or smart phone. Because you will be watching a working meeting, there will be no method for asking questions or making statements. Joining information can be accessed via the Community Engagement Calendar.

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