Superfund Site Profile

New Site Information
Fall Public Meetings and Digging Deeper at Bonita Peak: The Mining District’s Environmental Impacts

The site team will be holding the fall BPMD public meetings the week of October 16, 2017, in Silverton, Durango and New Mexico. As part of the meetings, Dan Wall, Brian Sanchez and Andrew Todd will present the third of EPA’s Digging Deeper presentations – “The Mining District’s Environmental Impacts.” The dates, locations and times of the meetings will be announced soon.

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.