Hydrogeological investigation of the existing tailings facility and surrounding valleys.  The investigation includes: hydrogeologic mapping, structural mapping of fractures and fault zones, drilling and installation of multi-level monitoring wells, in-situ hydraulic testing, hydrochemistry,  data analysis, conceptual and numerical modeling.

Hydrogeological studies related to EIA and feasibility level engineering studies including: evaluation of surface water and groundwater supply options; hydrogeological characterization of tailings facility and mine waste areas;  evaluation of mine dewatering and depressurization requirements.  The ongoing studies include: hydrogeological mapping, drilling and installation of piezometers and pumping wells, hydrochemistry, hydraulic testing of aquifers, conceptual and numerical modeling and impact evaluations.

Hydrogeological studies related to EIA and feasibility level engineering studies including: evaluation of water supply options; hydrogeological characterization of tailings facility and mine waste areas;  evaluation of mine dewatering and depressurization requirements.  PFS studies will terminate in June 2019 and continue with FS.

Hydrogeological investigation of the existing tailings facility and surrounding valleys.  The investigation includes: hydrogeologic mapping, structural mapping of fractures and fault zones, drilling and installation of multi-level monitoring wells, in-situ hydraulic testing, hydrochemistry,  data analysis, conceptual and numerical modeling.

Hydrogeology study of a waste dump and tailings expansions:  the study included: management of internationally recognized karst experts, local and regional geological and karst feature mapping, speleology of several caves, several quantitative dye tracer tests using field fluorometers and charcoal samplers, conceptual modeling of karstic system and integration of karstic concepts into a 3D numerical model.  Also currently evaluating water supply options for nearby communities.

Hydrogeological characterization of karstic terrain related to tailings storage facility, sedimentation ponds, proposed tailings facilities and open pits. Work includes expert review of previous work, hydrogeological and vulnerability mapping, geophysical surveys, drilling and installation of multi-level piezometers, revision of karst hydrogeological concepts, and recommendations for engineering works.