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About Impoundments
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What Are Impoundments?
Past Spills & Information
Fast Facts
Impoundments are the entire structure used for coal slurry waste disposal, including the embankment, basin, beach, pool, and slurry
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Image of an arrow. Spills Database
Image of an arrow. Past Spills Videos
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Image of an arrow. Glossary of Terms
Image of an arrow. The Mine Safety and Health Administration bases its hazard potential ranking system on height of the embankment, the volume of material impounded and the downstream effects of an impoundment failure.
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Latest Technologies
Image of a man holding a handful of coal. DTE PepTec®

The PepTec® Process applies a reagent in a high-energy environment to break the surface bonds between coal particles and clay-sized impurities. The reagent is non-toxic and safe for the environment. Once the bonds are broken, the coal particles are recovered by conventional fine coal cleaning processes.

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