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RGC: Project Experience
Questa Mine
New Mexico, USA
- Client:
- Molycorp, Inc.
- Project Description:
- The Questa molybdenum mine, owned and operated by Molycorp Inc., is located
5.8 km east of the town of Questa in Taos County, New Mexico and has been in
operation since 1965.
RGC has undertaken extensive characterization, modeling and mine closure planning.
Services have been provided in the areas of ARD and metal leaching characterization
and prediction of contamination from natural hydrothermal scars, mine tailings,
waste rock and open pit wall rock. Geochemical modeling, 3D geometric modeling of
tailings impoundment, local and regional 3D groundwater flow modeling and modeling
of infiltration and seepage in the tailings to assess alternative soil cover designs
has been provided. Environmental liability assessment and mine closure and reclamation
planning as well as services in a legal capacity (Dr. Robertson has served as an
expert witness for this project) have also been undertaken.
Services Provided:
- ARD/Geochemical Assessments & Remediation
- Professional Services (Expert Witness, Technical Review Panels or Advisories)
- Mine Closure/Reclamation Studies
- Mining & Mineralogy
- Water Resources; Hydrology; Groundwater
Questa Located on Google Maps May 02, 2006
Papers:
- Wels, C., Loudon, S. & Fortin, S. (2002):
Factors Influencing Net Infiltration
into Mine Rock Piles at Questa Mine, New Mexico. In Tailings and Mine Waste '02, proceedings
of the Ninth International Conference on Tailings amd Mine Waste, Fort Collins, Colorado, USA, 27-30
January 2002, pp. 469-477.
- Shaw, S., Wels, C., Robertson, A. & Lorinczi, G. (2002):
Physical and geochemical characterization
of mine rock piles at the Questa mine, New Mexico. In Tailings and Mine Waste '02, proceedings
of the Ninth International Conference on Tailings amd Mine Waste, Fort Collins, Colorado, USA, 27-30
January 2002, pp. 447-458.
- Lefebvre, R., Lamontagne, A. Wels, C., & Robertson, A. MacG. (2002):
ARD Production and Water Vapor
Transport at the Questa Mine. In Tailings and Mine Waste '02, proceedings
of the Ninth International Conference on Tailings amd Mine Waste, Fort Collins, Colorado, USA, 27-30
January 2002, pp. 479-488.
- Wels, C., O'Kane, M., Fortin, S. and Christensen, D.(2001)
: Infiltration Test
Plot Study for Mine Rock at Questa Mine, New Mexico. Paper presented
at the American Society for Surface Mining and Reclamation Conference, Proceedings Volume 1, pp.
195-209, June 2001, Albuquerque, New Mexico.
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