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The Acid Drainage Technology Initiative (ADTI)

The Acid Drainage Technology Initiative (ADTI) was initiated in 1995 by federal agencies, the National Mining Association and the Interstate Mining Compact Commission to identify, evaluate and develop cost-effective and practical acid drainage technologies with a primary focus on the coal mining sector (CMS). In 1999, ADTI was expanded through the addition of the metal mining sector (MMS) group, which is focused on drainage quality issues related to metal mines. ADTI addresses drainage quality issues from abandoned, active, and future coal and metal mines.

ADTI is a technology development program. It is not a regulatory or policy development program. The guiding principle of ADTI is to build consensus among industry, federal and state regulatory agencies on acid drainage technology development and technology transfer issues. ADTI is focusing its efforts on mine drainage prediction, sampling/monitoring, modeling and avoidance/remediation, mitigation and pit lakes.


ADTI-MMS uses consensus to promote scientifically sound mineral development that minimizes adverse impacts on water and maximizes beneficial post-mining land uses.

Mission Statement

The mission of ADTI-MMS is to identify, evaluate, develop, and disseminate information about cost effective, environmentally sound methods and technologies to manage mine wastes and related metallurgical materials for abandoned, inactive, active, and future mining and associated operations and to promote understanding of these technologies. ADTI-MMS is not a policy or regulatory initiative; it is a technically focused consensus group of volunteer representatives from state and federal government, academia, the mining industry, consulting firms, and other interested parties who are involved in the environmentally sound management of metal-mine wastes and drainage quality issues.