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Abandoned Mine Lands

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Abandoned mine lands (AMLs) are those lands, waters and surrounding watersheds where extraction, beneficiation or processing of ores and minerals has occurred. AMLs can pose serious threats to human health and the environment. The EPA conducts and supervises investigation and cleanup actions at a variety of mine sites. The Agency has a range of resources related to the environmental risks and challenges present in investigating and cleaning up AMLs. The EPA also pursues opportunities to explore innovative reuse opportunities at mine sites.

Abandoned Mine Lands Spotlight

Best Practices: EPA has issued “Best Practices to Prevent Releases from Impoundments at Abandoned Mine Sites while Conducting CERCLA Response Actions."  EPA developed these best practices to prevent and minimize the potential for sudden uncontrolled releases of fluid mine waste that could result from the Agency’s Superfund response actions at tailings impoundments located on abandoned hardrock mine and mineral processing sites.

Best Practices to Prevent Releases from Impoundments at Abandoned Mine Sites while Conducting CERCLA Response Actions(64 pp, 2.4 MB)

Good Samaritan Cleanup Example Administrative Settlement Agreement and Order on Constent (ASAOC): To facilitate Good Samaritan cleanups at AMLs, EPA is sharing an example ASAOC and associated documents from the Black Swan Restoration Reach Good Samaritan Project in Colorado.

Black Swan Good Sam Cleanup ASAOC and Associated Documents

Use the interactive table below to find Agency documents related to Abandoned Mine Lands. The table sorts alphabetically. You can also enter document titles or other terms into the search box below.

Search for AML Documents
Document Title Collections Date Document ID
Document Title Collections Date Document ID

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