The technologies listed below have been identified as alternatives to the use of coal waste
impoundments or as remediation techniques for the removal of existing impoundments. The
first category, Storage Alternatives, include technologies that eliminate impounds by
exploring other waste storage locations. The second category, Dry Coal Cleaning Methods,
include technologies that can clean coal without the use of water thereby eliminating the
need for impoundments. The third category, Remediation/Waste Utilization, includes
technologies designed to cleanup impoundments and use impoundment materials as an energy source.