Mining Webinar Series: Assessment and Rehabilitation of Humid Region Mine Sites and Wastes (May 18, 2021)


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This seminar will review the essential steps and protocols for the assessment and rehabilitation of active and abandoned mining sites in humid regions with examples drawn from the mid-Atlantic USA. In these environments, appropriate stabilization and closure plans must address direct surface revegetation and erosion control along with predicting and controlling adverse water quality discharges. Important site-specific limitations that must be assessed and planned for include (1) avoiding acid-forming materials, (2) minimizing mine soil compaction, (3) ensuring adequate plant moisture supply, and (4) accounting for slope x aspect effects. Due to the net leaching climate, reclamation practitioners must also predict and manage against emission of acid mine/rock drainage in many instances and/or circumneutral high TDS discharges in others. Specific examples will include reclamation of surface coal mines to hayland/pasture or native forests, stabilization and revegetation of acid-forming coal refuse, and return of mineral sands (Ti and Zr) mines to prime farmland row cropping systems. The seminar will cover recommendations for (a) pre-mine closure overburden and soil testing, (b) mine soil reconstruction, (c) basics of AMD/TDS drainage potential prediction, (d) topsoil and organic matter management, and (e) long term soil fertility and pH management concerns. Complete supporting materials and publications are available at To view this archive online or download the slides associated with this seminar, please visit

339 episoder