Upper Blackfoot Mining Complex (UBMC) / Mike Horse
Under the direction of MDEQ, the Custodial Trust is operating the UBMC/Mike Horse water treatment plant, designed and built by Asarco to treat water contaminating the Blackfoot River because of historic mining activities at the UBMC. MDEQ consults with the USFS and MDOJ on the Custodial Trust’s activities. Separately, in collaboration with the USFS and MDOJ, MDEQ is carrying out remediation and restoration of the UBMC, including the Mike Horse Dam, on property largely owned by the USFS, which is situated at the headwaters of the Blackfoot River. Cleanup and restoration are paid out of funds received directly by the State as part of the Asarco bankruptcy settlement and other sources.
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