Superfund Information Systems: Site Profile

Superfund Site:

SMUGGLER MOUNTAIN
ASPEN, CO

Cleanup Activities

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Background

The Smuggler Mountain site is located in Aspen, Colorado. Lead and silver mining took place at Smuggler Mountain from 1879 to 1920. Mining activities and wastes, including toxic metals, mill tailings and smelter byproducts, contaminated soil and groundwater with heavy metals. Following cleanup, EPA took the site off the Superfund program’s National Priorities List (NPL) in 1999. Operation and maintenance activities are ongoing.

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What Is Being Done to Clean Up the Site?

The site is being addressed through potentially responsible party (PRP) actions.

EPA has conducted several five-year reviews of the site’s remedy. These reviews ensure that the remedies put in place protect public health and the environment, and function as intended by site decision documents. The most recent review concluded that response actions at the site are in accordance with the remedy selected by EPA and that the remedy continues to be protective of human health and the environment.

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What Is the Current Site Status?

The site’s long-term remedy included removing contaminated soil; capping a contaminated berm with clean soil and vegetation; regrading a parking area and part of the mine to drain back into the mountain; controlling dust emissions; extending the existing fence to restrict entry to the lower portion of the mine; and completing reports on lead impacts and lead bioavailability. Remedy construction took place between 1990 and 1996. Operation and maintenance activities include controlling runoff, dust and site access.

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