Project Summary

Location: Gunnison County, Colorado
Clients: U.S. Forest Service, Trout Unlimited
Contract Value: $1,558,000

The objectives of the design/removal action were to improve the water quality of Tomichi Creek, reduce the potential for human and ecological receptors to have direct contact with mine wastes containing high concentrations of heavy metals, provide stability for the waste piles and minimize the potential for off-site transport, and maintain access to residents living in North Star and Whitepine areas.

RMC prepared 40 and 90 percent designs for the removal action, realigning a Forest Service road, and modeling surface water run-on/run-off for the site. Following submittal of the 90% design, RMC constructed the South Pile Repository, constructed the re-aligned FS Road 890, re-aligned Galena Creek through its former drainage between the North and South Piles, removed mine wastes at Mile Marker 8 along County Road 888, and revegetated and run-on and run-off control features at the South Pile Repository.

Second and third phase reclamation tasks (funded through Trout Unlimited) included the placing the remaining North Pile mine waste in an on-site repository, reconstructing the Tomichi Creek floodplain, installing water-control measures.

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