Superfund Site Profile

The Draft Final Bonita Peak Mining District Community Involvement Plan has been released for public comment. Comments may be submitted in writing until July 17, 2071. For more information, view the public notice.

Upcoming Events:
In response to requests from stakeholders, the site team will begin holding informal meetings for in-depth discussions of specific topics related to work being done in the Bonita Peak Mining District. These “Digging Deeper at Bonita Peak” meetings will take place throughout the year.

Digging Deeper at Bonita Peak: Innovative Technologies
Steve Dyment from EPA’s Office of Research and Development will discuss innovative technologies his office is evaluating for use at the Bonita Peak Mining District.
Tuesday, July 25, 7 p.m.
Silverton Town Hall
1360 Greene Street, Silverton, Colo.

Coming this fall: Aquatic Ecological Risk Assessment

EPA is maintaining contact information from individuals and/or companies wishing to be considered for work at the BPMD. Vendors or contractors interested in doing business related to BPMD should contact Cynthia Peterson (

Do you have information about past mining activities at the Brooklyn Mine, such as maps, photos or personal stories? If so, it could be helpful to the investigative and cleanup work being done at the mine. Please contact Ben Martinez ( or 970-385-1202 to share your knowledge and information about past mining practices.


The Bonita Peak Mining District site consists of 48 historic mines or mining-related sources where ongoing releases of metal-laden water and sediments are occurring within the Mineral Creek, Cement Creek and Upper Animas River drainages in San Juan County, Colorado. Historic mining operations have contaminated soil, groundwater and surface water with heavy metals. A remedial investigation to determine the nature and extent of contamination is underway.