ACID MINE DRAINAGE
Clearwater Group has evaluated mine properties for resource potential, tax value for estate purposes, as well as for environmental issues. The firm has performed valuations of property with gold and silver resources as well as coal properties. The company has worked on mitigation measures to minimize acid mine drainage potential of sulfur-rich deposits.
Principal Geologist James A. Jacobs co-authored Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils (2014, Wiley).
The author is shown at the Richmond Portal of Iron Mountain Mine, a U.S. EPA Superfund Site with a documented -3.6 pH. Photos below show Iron Mountain Mine, with passive mitigation measures to treat acid mine drainage in the eastern U.S.
Water treatment at Iron Mountain Mine relies on lime treatment as well as stormwater diversion.
Passive constructed wetlands have been used for acid mine drainage treatment.
Cold mix asphalt (CMA) can also be used to incorporate mining wastes into a recycled product.